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CN118230382A - Petrochemical enterprise multidimensional personnel location show management system - Google Patents

Petrochemical enterprise multidimensional personnel location show management system Download PDF

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Publication number
CN118230382A
CN118230382A CN202410320073.2A CN202410320073A CN118230382A CN 118230382 A CN118230382 A CN 118230382A CN 202410320073 A CN202410320073 A CN 202410320073A CN 118230382 A CN118230382 A CN 118230382A
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China
Prior art keywords
positioning
bluetooth
enterprise
gps
personnel
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CN202410320073.2A
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Chinese (zh)
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CN118230382B (en
Inventor
丁强
王文政
程万宇
刘壮
陈海文
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Nanjing Power Technology Co ltd
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Nanjing Power Technology Co ltd
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Priority to CN202410320073.2A priority Critical patent/CN118230382B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/14—Receivers specially adapted for specific applications
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/172—Classification, e.g. identification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Computer Security & Cryptography (AREA)
  • General Health & Medical Sciences (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

The invention discloses a multidimensional personnel positioning display management system for petrochemical enterprises, and particularly relates to the technical field of personnel positioning. After successful authentication, the GPS positioning module is used for positioning staff in real time and monitoring the GPS state, so as to generate different positioning signals. When the GPS is unstable, a Bluetooth positioning module is started, the state of a Bluetooth beacon is monitored in real time, and different running signals are generated. And the positioning mode is intelligently switched according to the GPS positioning signal and the Bluetooth beacon operation signal, so that comprehensive positioning service is provided. And when the GPS positioning is unstable and can not be switched to the Bluetooth positioning, generating an early warning signal. The positioning fault tolerance is improved, the accuracy is improved, the situation that staff cannot be positioned in time under emergency accidents is avoided, and potential losses are reduced.

Description

Petrochemical enterprise multidimensional personnel location show management system
Technical Field
The invention relates to the technical field of personnel positioning, in particular to a multi-dimensional personnel positioning display management system for petrochemical enterprises.
Background
A multi-dimensional personnel positioning display management system for petrochemical enterprises is a system for acquiring, managing and processing personnel position information by utilizing a modern positioning technology and an information communication technology. The method can realize real-time positioning and management of personnel indoors and outdoors through different technical means such as GPS, bluetooth, wi-Fi, inertial navigation and the like, and can transmit positioning data to a positioning server to analyze and process the positioning data in a wireless way, and can display the processed positioning data of enterprise personnel.
The existing petrochemical enterprise personnel positioning technology is mainly realized through a mode of combining GPS positioning and Bluetooth positioning, personnel positioning is firstly carried out according to a GPS, if the GPS cannot acquire signals, the GPS cannot acquire the signals through Bluetooth, but because the actual scene of the petrochemical enterprise is complex and various, the internal space of the petrochemical enterprise is occupied by a pipeline, a reaction furnace and the like, the GPS signals and the Bluetooth signals can be reflected and refracted for many times, the stability and the performance of a Bluetooth beacon (a hardware equipment terminal) can be influenced by the periphery of the reaction furnace and the heating furnace through accompanying with higher temperature, the GPS positioning can be delayed in switching Bluetooth positioning, the positioning accuracy is further influenced, and when the workers are in emergency safety, the positions of the workers cannot be positioned timely, so that larger irrecoverable loss is caused.
In order to solve the above-mentioned defect, a technical scheme is provided.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, an embodiment of the present invention provides a multi-dimensional personnel positioning display management system for petrochemical enterprises, so as to solve the problems set forth in the above-mentioned background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A multi-dimensional personnel positioning display management system for petrochemical enterprises comprises a personnel identification module, a GPS positioning module, a Bluetooth positioning module, an intelligent switching module, an early warning module, a positioning server and a display interface, wherein signal connection exists among the modules;
the personnel identification module is used for carrying out identity authentication on enterprise personnel needing to enter a petrochemical enterprise factory, and after authentication is successful, the enterprise personnel are input into the system;
The GPS positioning module is used for positioning enterprise staff entering the system in real time in a GPS positioning mode, monitoring the positioning state of the GPS and generating different GPS positioning state signals;
the Bluetooth positioning module is used for positioning staff of an enterprise in real time in a Bluetooth positioning mode when the positioning state of the GPS is unstable, and monitoring the running state of the Bluetooth beacons to generate different Bluetooth beacon running state signals;
The intelligent switching module is used for acquiring a GPS positioning state signal and a Bluetooth beacon running state signal and intelligently switching a GPS positioning mode and a Bluetooth positioning mode according to the GPS positioning state signal and the Bluetooth beacon running state signal;
the early warning module is used for generating an early warning signal when the positioning state of the GPS is unstable and the Bluetooth positioning mode cannot be switched;
The positioning server is used for acquiring positioning data of the GPS or the Bluetooth, processing, analyzing and storing the positioning data of the GPS or the Bluetooth, and extracting the position information characteristic data of the enterprise staff;
And the display interface is used for displaying the current position of the enterprise staff in real time according to the position information characteristic data of the enterprise staff.
In a preferred embodiment, the authentication of the identity of the enterprise personnel who need to enter the petrochemical enterprise factory area further comprises the steps of:
Acquiring face information of enterprise staff through mobile phone terminal equipment, and comparing and matching the acquired face information with the face information of the enterprise staff stored in a database in advance;
Setting a matching frequency threshold;
If the face information is successfully matched, confirming the identity of the staff, and prompting that the authentication is successful;
if the face information is failed to match, the face information of the enterprise staff is acquired again to carry out repeated matching, and if the repeated matching times are greater than the matching times threshold value, authentication failure is prompted.
In a preferred embodiment, monitoring the GPS positioning status, generating different GPS positioning status signals further comprises the steps of:
The method comprises the steps of periodically collecting main factor information data related to stability and accuracy of GPS positioning states, wherein the main factor information data comprise signal intensity data, satellite connection data and enterprise personnel positioning area related data;
the signal intensity data comprise signal intensity abnormal fluctuation indexes, the satellite connection data comprise satellite connection quantity mutation indexes, and the enterprise personnel positioning area association data comprise enterprise personnel positioning area association degrees;
The signal intensity abnormal fluctuation index, the satellite connection quantity mutation index and the association degree of the enterprise personnel positioning area are respectively marked as WG, BF and CF;
Calculating GPS positioning state coefficients according to the abnormal fluctuation index of signal intensity, the mutation index of satellite connection quantity and the association degree of the positioning areas of enterprise personnel by a formula, wherein the expression is that Wherein GX represents a GPS positioning state coefficient, and a 1、a2、a3 is a weight factor of a signal strength abnormality fluctuation index, a satellite connection quantity mutation index and an enterprise personnel positioning area association degree respectively.
In a preferred embodiment, the GPS location state coefficients are compared to a GPS location state coefficient threshold to generate different GPS location state signals;
If the GPS positioning state coefficient is greater than or equal to the GPS positioning state coefficient threshold value, generating a positioning abnormal signal;
And if the GPS positioning state coefficient is smaller than the GPS positioning state coefficient threshold value, generating a positioning stable signal.
In a preferred embodiment, the signal strength anomaly fluctuation index is obtained by the following logic:
Acquiring the intensity value of a satellite signal received by a GPS receiver in real time within a preset time period;
establishing a two-dimensional graph of the change of the intensity value of the satellite signal along with time according to the intensity values of the satellite signal acquired at different moments, wherein the horizontal and vertical directions represent time, and the vertical axis represents the intensity value of the satellite signal;
Calculating satellite signal intensity outliers at different moments according to a two-dimensional graph, wherein the expression is as follows Wherein lq i represents satellite signal strength outliers at different times, qd i represents satellite signal strength values at different times, pj represents a satellite signal strength average value at the remaining times, bz represents a satellite signal strength standard deviation at the remaining times, i represents sequence numbers i= {1, 2..and n }, n being a positive integer;
Comparing the satellite signal intensity outliers at different moments with a preset satellite signal intensity outlier threshold, and marking the satellite signal intensity outliers as satellite signal intensity abnormal outliers when the satellite signal intensity outliers are larger than the satellite signal intensity outlier threshold Calculating signal intensity anomaly fluctuation index according to satellite signal intensity anomaly outliers, the expression of which is as followsWhere j represents the order number j= {1, 2..m } of the satellite signal strength anomaly outlier, m being a positive integer.
In a preferred embodiment, the acquisition logic for the satellite connection number mutation index is as follows:
Acquiring the number of satellites connected with the GPS receiver at different moments in real time in a preset time period;
Calculating satellite quantity difference values connected with GPS receivers at adjacent moments, comparing the satellite quantity difference values with preset satellite quantity difference value thresholds, and calculating satellite connection quantity mutation indexes when the satellite quantity difference values are larger than the satellite quantity difference value thresholds, wherein the expression is as follows Where cy represents the number of times the satellite number difference value is greater than the satellite number difference value threshold, and bl represents the total number of times the satellite number difference value is compared with the satellite number difference value threshold;
The logic for acquiring the association degree of the enterprise personnel positioning area is as follows:
Setting an area radius, calculating the peripheral range threshold of enterprise personnel according to the area radius, counting the number of enterprise personnel SH of which the positioning modes of other enterprise personnel are switched from the GPS positioning mode to the Bluetooth positioning mode within the peripheral range threshold of the enterprise personnel, and calculating the association degree of the positioning areas of the enterprise personnel, wherein the expression is CF=SH.
In a preferred embodiment, when the Bluetooth beacon is running, collecting a plurality of data affecting the running state of the Bluetooth beacon, including battery state data and broadcast intensity data; the battery state data comprises a battery short-circuit abnormal occupation ratio, and the broadcast intensity data comprises a broadcast intensity floating coefficient;
the battery short-circuit abnormal occupation ratio and the broadcast intensity floating coefficient are respectively marked as OE and QG;
And calculating the Bluetooth beacon running state index according to the battery short-circuit abnormal occupation ratio and the broadcast intensity floating coefficient through a formula.
In a preferred embodiment, the bluetooth beacon operating state index is compared with a bluetooth beacon operating state index to generate a different bluetooth beacon operating state signal;
If the Bluetooth beacon running state index is greater than or equal to the Bluetooth beacon running state index threshold, generating a running abnormal signal;
and if the Bluetooth beacon running state index is smaller than the Bluetooth beacon running state index threshold, generating a running stable signal.
In a preferred embodiment, the calculation expression of the battery short-circuit abnormality occupancy rate is as follows Where lk represents the total number of times the battery of the bluetooth beacon has a short circuit state at the time of transmitting the bluetooth signal, and al represents the total number of times the battery of the bluetooth beacon has no short circuit state at the time of transmitting the bluetooth signal;
the expression for calculating the broadcast intensity floating coefficient is as follows Wherein gb denotes the broadcast intensity when the bluetooth beacon is broadcast, v denotes the sequence number v= {1, 2, & gt, u } in which the bluetooth beacon is broadcast in the period in which the environmental temperature exceeds the operating temperature, u is a positive integer, b denotes the sequence number b= {1, 2, & gt, r } in which the bluetooth beacon is broadcast in the period in which the environmental temperature does not exceed the operating temperature, r is a positive integer, [ t α,tβ ] denotes the period in which the environmental temperature of the bluetooth beacon exceeds the operating temperature, and [ t γ,tδ ] denotes the period in which the environmental temperature of the bluetooth beacon does not exceed the operating temperature.
In a preferred embodiment, the intelligent switching module further comprises the steps of: when a positioning abnormality signal is received, acquiring the current position information of the enterprise personnel, wherein the current position information comprises longitude and latitude coordinates, judging the specific area of the enterprise personnel in the area divided in advance in the petrochemical enterprise factory area according to the current position information of the enterprise personnel, and marking the specific area as a target area;
after the enterprise personnel are in the target area in the area divided in advance in the petrochemical enterprise factory area, the frequency that the Bluetooth beacon running state signal in the area is a running stable signal is obtained;
Comparing the frequency of the operation stable signal with a frequency threshold, marking the current enterprise personnel as dangerous personnel when the frequency of the operation stable signal is smaller than the frequency threshold, and starting an early warning module;
when the frequency of the operation stabilizing signal is greater than or equal to a frequency threshold, switching to Bluetooth positioning, and verifying the switched Bluetooth positioning mode;
and verifying the switched Bluetooth positioning mode:
acquiring the position data of a plurality of Bluetooth beacons received by a current Bluetooth receiver, and judging the area where each Bluetooth beacon is located in the pre-divided area of the petrochemical enterprise factory area according to the position data of the plurality of Bluetooth beacons;
counting the number of Bluetooth beacons in the target area and the number of Bluetooth beacons not in the target area in the number range of a plurality of Bluetooth beacons received by the Bluetooth receiver;
When the number of the Bluetooth beacons in the target area is larger than that of the Bluetooth beacons not in the target area, the verification is successful, and the Bluetooth positioning mode is switched;
When the number of Bluetooth beacons in the target area is smaller than or equal to the number of Bluetooth beacons not in the target area, the verification is failed, the current enterprise personnel are marked as dangerous personnel, and an early warning module is started;
When the positioning stable signal is received, the switching of the positioning mode is not needed.
The invention has the technical effects and advantages that:
1. The invention carries out identity authentication on enterprise staff needing to enter a petrochemical enterprise factory through the staff identification module, after authentication is successful, the enterprise staff is input into the system, and the GPS positioning module carries out real-time positioning on the enterprise staff input into the system by adopting a GPS positioning mode and monitors the positioning state of the GPS at the same time, so as to generate different GPS positioning state signals; when the positioning state of the GPS is unstable, a Bluetooth positioning module is started, an enterprise employee is positioned in real time in a Bluetooth positioning mode, and meanwhile, the running state of a Bluetooth beacon is monitored, so that different Bluetooth beacon running state signals are generated; acquiring a GPS positioning state signal and a Bluetooth beacon running state signal, and intelligently switching the GPS positioning mode and the Bluetooth positioning mode according to the GPS positioning state signal and the Bluetooth beacon running state signal; generating an early warning signal when the positioning state of the GPS is unstable and the Bluetooth positioning mode cannot be switched; the positioning system provides more comprehensive positioning service, switches when the positioning state is unstable, improves the fault tolerance of positioning, increases positioning accuracy, and avoids the situation that the position of a worker cannot be positioned in time when the worker is in emergency safety, so that more irrecoverable loss is caused.
2. The invention periodically collects main factor information data related to the stability and accuracy of GPS positioning states, including signal intensity data, satellite connection data and enterprise personnel positioning area related data, constructs a GPS positioning state monitoring model according to the signal intensity data, the satellite connection data and the enterprise personnel positioning area related data, generates a GPS positioning state coefficient, measures the stability of the GPS positioning mode suitable for the current enterprise personnel, compares the GPS positioning state coefficient with a preset GPS positioning state coefficient threshold value to generate different GPS positioning state signals, and can early warn, respond in advance and switch to a positioning mode more suitable for the current environment when the stability of the GPS positioning state signal has a descending trend, thereby ensuring the positioning accuracy of the personnel and the reliability of the system.
3. According to the invention, when the Bluetooth beacon operates, a plurality of data which influence the Bluetooth beacon operating state are acquired, wherein the data comprise battery state data and broadcast intensity data, a Bluetooth beacon operating state monitoring model is constructed according to the battery state data and the broadcast intensity data, a Bluetooth beacon operating state index is generated, the stability of the Bluetooth beacon operating state is measured according to the Bluetooth beacon operating state index, and when the positioning mode needs to be switched, the stability of the Bluetooth beacon operation in a target area can be ensured to meet the switching of the positioning mode.
Drawings
For the convenience of those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The invention provides a multi-dimensional personnel positioning display management system of petrochemical enterprises, which is shown in figure 1, and comprises a personnel identification module, a GPS positioning module, a Bluetooth positioning module, an intelligent switching module, an early warning module, a positioning server and a display interface, wherein the modules are connected by signals.
The personnel identification module is used for carrying out identity authentication on enterprise personnel needing to enter a petrochemical enterprise factory, and after authentication is successful, the enterprise personnel are input into the system;
identity authentication: when enterprise staff enter a petrochemical enterprise factory area, performing identity verification by adopting a face recognition technology, acquiring face information of the enterprise staff through mobile phone terminal equipment, and comparing and matching the acquired face information with the face information of the enterprise staff stored in a database in advance;
setting a matching frequency threshold, namely, matching enterprise staff can be carried out for a plurality of times within limited frequency, so as to avoid inaccurate acquisition of face information caused by environmental factors such as light, dust and the like;
If the face information is successfully matched, confirming the identity of the staff, and prompting that the authentication is successful;
if the face information fails to match, the face information of the enterprise staff is acquired again to carry out repeated matching, and if the repeated matching times are greater than a matching times threshold value, authentication failure is prompted;
And (3) recording a system: after the identity authentication is successful, the enterprise staff is identified as legal online enterprise staff so as to position and track the enterprise staff later, and basic information of the identified legal online enterprise staff is transferred to an early warning module;
It should be noted that, the basic information of legal online enterprise staff includes name, staff number, contact (phone number), emergency contact information (emergency contact name, contact), etc.;
Starting a GPS positioning module: once the enterprise staff is identified as legal online enterprise staff, starting a GPS positioning module to position the legal online enterprise staff in real time;
The GPS positioning module is used for positioning enterprise staff entering the system in real time in a GPS positioning mode, monitoring the positioning state of the GPS and generating different GPS positioning state signals;
GPS positioning: the method for locating legal online enterprise staff in real time through the GPS mode comprises the following steps:
GPS signal reception: GPS receivers receive signals from GPS satellites orbiting the earth at constant speeds, transmitting signals containing time and location information;
It should be noted that, the GPS receiver is usually built in the mobile phone of the enterprise employee, and the current position of the enterprise employee can be represented by the position of the GPS receiver;
signal processing and position calculation: the GPS receiver acquires the time and the position of a satellite transmitting signal by collecting signal data from at least three satellites and decoding the signal data, and calculates the position of the GPS receiver according to the propagation time of the information data to acquire the position information of the GPS receiver including longitude, latitude and sea wave height;
Data transmission to a positioning server: the mobile phone terminal with the built-in GPS receiver encapsulates the acquired GPS receiver position information data into a data packet through a wireless communication technology (such as Wi-Fi, 4G/5G and the like) and transmits the data packet to a positioning server;
And (3) monitoring a positioning state: monitoring the GPS positioning state, and periodically collecting main factor information data related to the stability and accuracy of the GPS positioning state, wherein the main factor information data comprises signal intensity data, satellite connection data and enterprise personnel positioning area related data when personnel positioning is carried out in a GPS positioning mode;
the signal intensity data comprise signal intensity abnormal fluctuation indexes, the satellite connection data comprise satellite connection quantity mutation indexes, and the enterprise personnel positioning area association data comprise enterprise personnel positioning area association degrees;
The signal intensity abnormal fluctuation index, the satellite connection quantity mutation index and the association degree of the enterprise personnel positioning area are respectively marked as WG, BF and CF;
Constructing a GPS positioning state monitoring model according to the abnormal fluctuation index of the signal intensity, the mutation index of the satellite connection quantity and the association degree of the positioning areas of the enterprise personnel, generating a GPS positioning state coefficient to mark the GPS positioning state coefficient as GX, measuring the stability of the GPS positioning mode suitable for the current enterprise personnel according to the GPS positioning state coefficient, and switching different positioning modes in advance when the stability of the GPS positioning mode has a descending trend;
in an alternative example, the GPS location state coefficients may be obtained from the following computational expression Wherein WG represents a signal intensity abnormal fluctuation index, BF represents a satellite connection quantity mutation index, CF represents an enterprise personnel positioning area association degree, a 1、a2、a3 is a weight factor of the signal intensity abnormal fluctuation index, the satellite connection quantity mutation index and the enterprise personnel positioning area association degree respectively, and specific numerical values can be set according to actual conditions;
the above calculation shows that the greater the signal strength abnormality fluctuation index, the satellite connection quantity mutation index and the association degree of the enterprise personnel positioning area are, the greater the GPS positioning state coefficient is, which indicates that the poorer the stability of the current GPS positioning mode is, the trend of the stability is possibly accompanied, and the probability of switching the positioning mode is higher when the GPS cannot be positioned at the future time point;
The signal strength abnormal fluctuation index is used for measuring the degree index of abnormal fluctuation of the strength of satellite signals received by the GPS receiver along with the change of time, and the greater the signal strength abnormal fluctuation index is, the worse the stability of the current GPS positioning mode is, the trend of the stability is possibly accompanied, the higher the probability of switching the positioning mode is when the GPS cannot be positioned possibly occurs at a future time point;
the acquisition logic of the signal strength abnormality fluctuation index is as follows:
Acquiring the intensity value of a satellite signal received by a GPS receiver in real time within a preset time period;
It should be noted that, the strength value of the satellite signal received by the GPS receiver is obtained in real time by selecting a suitable API interface to connect the GPS signal strength testing tool with the system;
establishing a two-dimensional graph of the change of the intensity value of the satellite signal along with time according to the intensity values of the satellite signal acquired at different moments, wherein the horizontal and vertical directions represent time, and the vertical axis represents the intensity value of the satellite signal;
It should be noted that different satellites have different two-dimensional graphs corresponding to each other;
Calculating satellite signal intensity outliers at different moments according to a two-dimensional graph, wherein the expression is as follows Wherein lq i represents satellite signal strength outliers at different times, qd i represents satellite signal strength values at different times, pj represents a satellite signal strength average value at the remaining times, bz represents a satellite signal strength standard deviation at the remaining times, i represents sequence numbers i= {1, 2..and n }, n being a positive integer;
comparing the satellite signal intensity outliers at different moments with a preset satellite signal intensity outlier threshold, and marking the abnormal satellite signal intensity outlier as the abnormal satellite signal intensity outlier when the satellite signal intensity outlier is larger than the satellite signal intensity outlier threshold, wherein the abnormal satellite signal intensity at the current moment is indicated Calculating the abnormal fluctuation index of the signal intensity according to the abnormal outlier of the satellite signal intensity, wherein the expression is as follows/> Wherein j represents the sequence number j= {1, 2..m } of the satellite signal strength anomaly outlier, m being a positive integer;
The satellite connection quantity mutation index is used for measuring the degree of difference between the quantity of satellites connected by the GPS receiver at adjacent moments, and the higher the satellite connection quantity mutation index is, the poorer the stability of the current GPS positioning mode is, the trend of the stability reduction possibly occurs, the situation that the GPS cannot be positioned possibly occurs at a future time point is shown, and the higher the probability of switching the positioning mode is;
The acquisition logic of the mutation index of the number of satellite connections is as follows:
Acquiring the number of satellites connected with the GPS receiver at different moments in real time in a preset time period;
Calculating satellite quantity difference values connected with GPS receivers at adjacent moments, comparing the satellite quantity difference values with preset satellite quantity difference value thresholds, and calculating satellite connection quantity mutation indexes when the satellite quantity difference values are larger than the satellite quantity difference value thresholds, wherein the expression is as follows Where cy represents the number of times the satellite number difference value is greater than the satellite number difference value threshold, bl represents the total number of times the satellite number difference value is compared with the satellite number difference value threshold, indicating that the number of satellites connected to the GPS receiver has a large degree of mutation, which is at risk of instability anomaly.
The relevance of the enterprise personnel positioning area is used for measuring whether the positioning modes of other enterprise personnel in the current enterprise personnel peripheral range are changed, if the positioning modes of more enterprise personnel in the current enterprise personnel peripheral range are switched, the worse the stability of the GPS positioning mode in the current area range is, the trend of the stability is possibly accompanied, and the higher the probability of switching the positioning mode is when the GPS cannot be positioned at a future time point; the association degree of the enterprise personnel positioning areas is determined by the number of other enterprise personnel with positioning mode switching in the peripheral range of the current enterprise personnel;
The logic for acquiring the association degree of the enterprise personnel positioning area is as follows:
Setting an area radius, calculating the peripheral range threshold of enterprise personnel according to the area radius, counting the number SH of enterprise personnel in which the positioning modes of other enterprise personnel are switched from the GPS positioning mode to the Bluetooth positioning mode within the peripheral range threshold of the enterprise personnel, and calculating the association degree of the positioning areas of the enterprise personnel, wherein the expression is CF=SH;
it should be noted that, the radius of the area may be set by related technicians in the field, and the number of the enterprise personnel performing the location mode switching may be determined by the actual switching number of the intelligent switching module;
Comparing the GPS positioning state coefficient with a preset GPS positioning state coefficient threshold value to generate different GPS positioning state signals, and transmitting the generated different GPS positioning state signals to an intelligent switching module;
If the GPS positioning state coefficient is greater than or equal to the GPS positioning state coefficient threshold, the stability of the current GPS positioning state is poor, and the greater the probability of the situation that the GPS cannot be positioned at the future time point is, a positioning abnormal signal is generated;
If the GPS positioning state coefficient is smaller than the GPS positioning state coefficient threshold, the current GPS positioning state is higher in stability, and a positioning mode is not required to be switched, so that a positioning stable signal is generated;
the Bluetooth positioning module is used for positioning staff of an enterprise in real time in a Bluetooth positioning mode when the positioning state of the GPS is unstable, and monitoring the running state of the Bluetooth beacons to generate different Bluetooth beacon running state signals;
Bluetooth positioning: the method for locating legal online enterprise staff in real time through the Bluetooth locating mode comprises the following steps:
Bluetooth beacon deployment: a series of Bluetooth beacons are deployed in a petrochemical enterprise factory, and the Bluetooth beacons are reasonably distributed according to geographic positions and demands; these bluetooth beacons are small wireless devices that can transmit bluetooth signals and broadcast their unique identifiers;
Bluetooth beacon broadcast: the deployed bluetooth beacon will send a bluetooth signal at a fixed frequency, containing the unique identifier of the bluetooth beacon itself and other necessary information;
Bluetooth signal reception: a legal online enterprise employee holds a mobile phone terminal with a built-in Bluetooth receiver, and receives Bluetooth signals sent by Bluetooth beacons through the Bluetooth receiver (the Bluetooth receiver usually receives the Bluetooth signals sent by a plurality of Bluetooth beacons); the mobile phone terminal can identify the unique identifier of each Bluetooth beacon and record the position data and the signal strength of the Bluetooth beacon;
Signal processing and position calculation: according to the recorded position data and signal intensity of a plurality of Bluetooth beacons, calculating the position of the Bluetooth receiver by using technologies such as triangulation or signal intensity fingerprint, and the like, so as to obtain the position information of the Bluetooth receiver including longitude, latitude and sea wave height;
data transmission to a positioning server: the mobile phone terminal with the built-in Bluetooth receiver encapsulates the acquired Bluetooth receiver position information data into a data packet through a wireless communication technology (such as Wi-Fi, 4G/5G and the like) and transmits the data packet to a positioning server;
bluetooth beacon running state monitoring: when the Bluetooth beacon operates, collecting a plurality of data which influence the operating state of the Bluetooth beacon, including battery state data and broadcast intensity data, and monitoring the operating state of the Bluetooth beacon;
The battery state data comprises a battery short-circuit abnormal occupation ratio, and the broadcast intensity data comprises a broadcast intensity floating coefficient;
the battery short-circuit abnormal occupation ratio and the broadcast intensity floating coefficient are respectively marked as OE and QG;
The abnormal battery short circuit occupation ratio refers to the occupation ratio degree of battery short circuit and battery short circuit not occurring at the transmitting moment when the Bluetooth beacon transmits the Bluetooth signal at a fixed frequency, and the higher the abnormal battery short circuit occupation ratio is, the more unstable the battery state of the current Bluetooth beacon is indicated, so that the running state of the Bluetooth beacon is influenced, and the risk of enterprise personnel positioning loss exists when the GPS positioning mode is switched to the Bluetooth positioning mode;
The calculation expression of the battery short-circuit abnormality occupation ratio is as follows Where lk represents the total number of times the battery of the bluetooth beacon has a short circuit state at the time of transmitting the bluetooth signal, and al represents the total number of times the battery of the bluetooth beacon has no short circuit state at the time of transmitting the bluetooth signal;
it should be noted that, the battery short-circuit state can measure real-time current through the current sensor, and when the measured current is far beyond the current when the current is in the path, the measured current is marked as the battery short-circuit state;
The broadcast intensity floating coefficient is used for measuring abnormal fluctuation expression values of broadcast intensity (Bluetooth signal intensity) of the Bluetooth beacon when broadcasting is carried out, and the higher the broadcast intensity floating coefficient is, the worse the running stability of the current Bluetooth beacon is, and the risk of lost positioning of enterprise personnel exists when the GPS positioning mode is switched to the Bluetooth positioning mode;
the expression for calculating the broadcast intensity floating coefficient is as follows Wherein gb represents the broadcast intensity of the bluetooth beacon when broadcasting, v represents the sequence number v= {1, 2, & gt, u } of the bluetooth beacon when broadcasting in the time period when the environmental temperature exceeds the working temperature, u is a positive integer, b represents the sequence number b= {1, 2, & gt, r } of the bluetooth beacon when broadcasting in the time period when the environmental temperature does not exceed the working temperature, r is a positive integer, [ t α,tβ ] represents the time period when the environmental temperature exceeds the working temperature, and [ t γ,tδ ] represents the time period when the environmental temperature does not exceed the working temperature, wherein the environmental temperature can be obtained in real time by a temperature sensor;
constructing a Bluetooth beacon running state monitoring model according to the battery short-circuit abnormal occupation ratio and the broadcast intensity floating coefficient, generating a Bluetooth beacon running state index, marking the Bluetooth beacon running state index as LQF, and measuring the stability of the Bluetooth beacon running state according to the Bluetooth beacon running state index;
In an alternative example, the bluetooth beacon running state index may obtain lqf=b 1*OE+b2 ×qg from the following calculation expression, where b 1、b2 is a battery short-circuit abnormal occupation ratio and a weight factor of a broadcast intensity floating coefficient, and the specific numerical value may be set according to the actual situation;
According to the calculation, the larger the battery short-circuit abnormal occupation ratio and the broadcast intensity floating coefficient are, the larger the Bluetooth beacon running state index is, which shows that the worse the stability of the current Bluetooth beacon running state is, the risk of lost positioning of enterprise personnel exists when the GPS positioning mode is switched to the Bluetooth positioning mode;
comparing the Bluetooth beacon running state index with a preset Bluetooth beacon running state index threshold value to generate different Bluetooth beacon running state signals, and transmitting the generated different Bluetooth beacon running state signals to an intelligent switching module;
If the Bluetooth beacon running state index is greater than or equal to the Bluetooth beacon running state index threshold, the worse the stability of the current Bluetooth beacon running state is, the risk of lost positioning of enterprise personnel exists when the GPS positioning mode is switched to the Bluetooth positioning mode, and an abnormal running signal is generated;
if the Bluetooth beacon running state index is smaller than the Bluetooth beacon running state index threshold, the running stability of the current Bluetooth beacon running state is better, and a running stability signal is generated;
The intelligent switching module is used for acquiring a GPS positioning state signal and a Bluetooth beacon running state signal and intelligently switching a GPS positioning mode and a Bluetooth positioning mode according to the GPS positioning state signal and the Bluetooth beacon running state signal;
When a positioning abnormal signal is received, acquiring the current position information of the enterprise personnel, wherein the current position information comprises longitude and latitude coordinates, the position information is from GPS positioning, judging the specific area of the enterprise personnel in the area divided in advance in the petrochemical enterprise factory area according to the current position information of the enterprise personnel, and marking the specific area as a target area;
Wherein, the pre-divided areas of the petrochemical enterprise factory can be divided according to actual conditions, for example,
Functional area division: dividing the areas into a production area, a storage area, an office area, an equipment area and the like according to different functions and process flows in an enterprise factory, wherein each area possibly corresponds to specific operation activities and safety requirements;
Security level or risk level: dividing the factory floor into different security level areas according to security standards, which may include a high-risk area, a restricted access area, a common operation area, etc., wherein the division may depend on factors such as chemical storage, equipment operation, etc.;
judging a target area where the enterprise personnel are located in a region which is divided in advance in a petrochemical enterprise factory area according to the current position information of the enterprise personnel, wherein the judgment can be carried out by using a related algorithm of the inclusion relation between points and polygons, such as RAY CASTING algorithm and the like;
it should be noted that, RAY CASTING algorithm is an existing mature technology that can be used to determine a target area where an enterprise personnel is located in a pre-divided area of a petrochemical enterprise factory, and will not be described herein;
after the enterprise personnel are in the target area in the area divided in advance in the petrochemical enterprise factory area, the frequency that the Bluetooth beacon running state signal in the area is a running stable signal is obtained, namely the quantity of the running stable Bluetooth beacons in the target area is represented;
Comparing the frequency of the operation stabilizing signal with a preset frequency threshold, when the frequency of the operation stabilizing signal is smaller than the frequency threshold, indicating that the stability of the Bluetooth beacon operation in the target area is insufficient to meet the switching of the positioning mode, marking the current enterprise personnel as dangerous personnel, and starting an early warning module;
When the frequency of the running stability signal is greater than or equal to the frequency threshold, the running stability of the Bluetooth beacon in the target area can meet the switching of the positioning mode, the Bluetooth positioning is switched to, and the switched Bluetooth positioning mode is verified;
and verifying the switched Bluetooth positioning mode:
acquiring the position data of a plurality of Bluetooth beacons received by a current Bluetooth receiver, judging the area where each Bluetooth beacon is located in the area divided in advance in the petrochemical enterprise factory area according to the position data of the plurality of Bluetooth beacons, wherein the judging method is the same as the judging method of the target area, and the method is not repeated here;
the current Bluetooth receiver is a Bluetooth receiver which is held by current enterprise personnel and is built in a mobile phone terminal, and the position data of the Bluetooth beacon comprises specific longitude and latitude coordinates;
counting the number of Bluetooth beacons in the target area and the number of Bluetooth beacons not in the target area in the number range of a plurality of Bluetooth beacons received by the Bluetooth receiver;
When the number of the Bluetooth beacons in the target area is larger than that of the Bluetooth beacons not in the target area, the verification is successful, and the Bluetooth positioning mode is switched;
When the number of Bluetooth beacons in the target area is smaller than or equal to the number of Bluetooth beacons not in the target area, verification failure is indicated, namely, the switching of the positioning mode cannot ensure continuous and effective positioning of enterprise personnel, the current enterprise personnel is marked as dangerous personnel, and an early warning module is started;
when a positioning stable signal is received, the switching of a positioning mode is not needed;
the early warning module is used for generating an early warning signal when the positioning state of the GPS is unstable and the Bluetooth positioning mode cannot be switched;
Constructing an online enterprise personnel early warning two-dimensional table according to the basic information of legal online enterprise personnel and the positioning information of GPS, wherein the basic information of the online enterprise personnel comprises names, personnel numbers, contact information (telephone numbers), emergency contact information (emergency contact names, contact information) and the like, and the positioning information of the GPS comprises longitude and latitude coordinates of the online enterprise personnel at different moments;
When an enterprise person is marked as a dangerous person, an early warning signal is generated, the enterprise person is highlighted in an online enterprise person early warning two-dimensional table, workers are reminded of taking relevant measures, and for emergency situations, the dangerous person is rapidly and accurately positioned so as to be helpful for timely rescue, and the safety of the enterprise person is guaranteed to the greatest extent;
The positioning server is used for acquiring positioning data of the GPS or the Bluetooth, processing, analyzing and storing the positioning data of the GPS or the Bluetooth, and extracting the position information characteristic data of the enterprise staff;
data analysis pretreatment: analyzing and identifying the received data packet, and preprocessing the data packet, including removing abnormal data, correcting errors, synchronizing time stamps and the like, so as to ensure the accuracy and reliability of the data;
Extracting position information characteristic data: extracting position information characteristic data of enterprise staff from the preprocessed positioning data, wherein the position information characteristic data comprises longitude and latitude coordinates at different moments and corresponding time points, and transmitting the position information characteristic data of the enterprise staff to a display interface;
And (3) data storage: storing the preprocessed positioning data in a local database or a cloud database for subsequent inquiry, calling and analysis, so as to ensure the safety and the integrity of the data;
The display interface is used for displaying the current position of the enterprise staff in real time according to the position information characteristic data of the enterprise staff;
Data processing and preparation: the position information characteristic data of the enterprise staff is subjected to unit conversion, coordinate system conversion and other processing, so that the availability of the data is ensured;
Interface design and layout: the interface for displaying the position of the enterprise staff is designed, can be in a map interface or other visual forms, and is provided with a proper layout, so that a user can clearly see the position of the enterprise staff;
identifying employee location: the position of each enterprise employee is explicitly displayed on the interface by using symbols, marks or other forms, and different enterprise employees are distinguished or the states thereof are displayed by taking the modes of colors, icons and the like into consideration;
Updating an interface in real time: for updating the position information characteristic data, the positions of enterprise staff on the interface are refreshed in real time, and animation or smooth transition effects can be used, so that user experience is improved;
the invention carries out identity authentication on enterprise staff needing to enter a petrochemical enterprise factory through the staff identification module, after authentication is successful, the enterprise staff is input into the system, and the GPS positioning module carries out real-time positioning on the enterprise staff input into the system by adopting a GPS positioning mode and monitors the positioning state of the GPS at the same time, so as to generate different GPS positioning state signals; when the positioning state of the GPS is unstable, a Bluetooth positioning module is started, an enterprise employee is positioned in real time in a Bluetooth positioning mode, and meanwhile, the running state of a Bluetooth beacon is monitored, so that different Bluetooth beacon running state signals are generated; acquiring a GPS positioning state signal and a Bluetooth beacon running state signal, and intelligently switching the GPS positioning mode and the Bluetooth positioning mode according to the GPS positioning state signal and the Bluetooth beacon running state signal; generating an early warning signal when the positioning state of the GPS is unstable and the Bluetooth positioning mode cannot be switched; the positioning system provides more comprehensive positioning service, switches when the positioning state is unstable, improves the fault tolerance of positioning, increases positioning accuracy, and avoids the situation that the position of a worker cannot be positioned in time when the worker is in emergency safety, so that more irrecoverable loss is caused.
The invention periodically collects main factor information data related to the stability and accuracy of GPS positioning states, including signal intensity data, satellite connection data and enterprise personnel positioning area related data, constructs a GPS positioning state monitoring model according to the signal intensity data, the satellite connection data and the enterprise personnel positioning area related data, generates a GPS positioning state coefficient, measures the stability of the GPS positioning mode suitable for the current enterprise personnel, compares the GPS positioning state coefficient with a preset GPS positioning state coefficient threshold value to generate different GPS positioning state signals, and can early warn, respond in advance and switch to a positioning mode more suitable for the current environment when the stability of the GPS positioning state signal has a descending trend, thereby ensuring the positioning accuracy of the personnel and the reliability of the system.
According to the invention, when the Bluetooth beacon operates, a plurality of data which influence the Bluetooth beacon operating state are acquired, wherein the data comprise battery state data and broadcast intensity data, a Bluetooth beacon operating state monitoring model is constructed according to the battery state data and the broadcast intensity data, a Bluetooth beacon operating state index is generated, the stability of the Bluetooth beacon operating state is measured according to the Bluetooth beacon operating state index, and when the positioning mode needs to be switched, the stability of the Bluetooth beacon operation in a target area can be ensured to meet the switching of the positioning mode.
The above formulas are all formulas with dimensions removed and numerical values calculated, the formulas are formulas with a large amount of data collected for software simulation to obtain the latest real situation, and preset parameters in the formulas are set by those skilled in the art according to the actual situation.
The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired or wireless means (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more sets of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.
It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A petrochemical enterprise multidimensional personnel location show management system, its characterized in that: the intelligent switching system comprises a personnel identification module, a GPS positioning module, a Bluetooth positioning module, an intelligent switching module, an early warning module, a positioning server and a display interface, wherein the modules are connected by signals;
the personnel identification module is used for carrying out identity authentication on enterprise personnel needing to enter a petrochemical enterprise factory, and after authentication is successful, the enterprise personnel are input into the system;
The GPS positioning module is used for positioning enterprise staff entering the system in real time in a GPS positioning mode, monitoring the positioning state of the GPS and generating different GPS positioning state signals;
the Bluetooth positioning module is used for positioning staff of an enterprise in real time in a Bluetooth positioning mode when the positioning state of the GPS is unstable, and monitoring the running state of the Bluetooth beacons to generate different Bluetooth beacon running state signals;
The intelligent switching module is used for acquiring a GPS positioning state signal and a Bluetooth beacon running state signal and intelligently switching a GPS positioning mode and a Bluetooth positioning mode according to the GPS positioning state signal and the Bluetooth beacon running state signal;
the early warning module is used for generating an early warning signal when the positioning state of the GPS is unstable and the Bluetooth positioning mode cannot be switched;
The positioning server is used for acquiring positioning data of the GPS or the Bluetooth, processing, analyzing and storing the positioning data of the GPS or the Bluetooth, and extracting the position information characteristic data of the enterprise staff;
And the display interface is used for displaying the current position of the enterprise staff in real time according to the position information characteristic data of the enterprise staff.
2. The petrochemical enterprise multidimensional personnel positioning display management system according to claim 1, wherein: the identity authentication of enterprise staff needing to enter the petrochemical enterprise factory area further comprises the following steps:
Acquiring face information of enterprise staff through mobile phone terminal equipment, and comparing and matching the acquired face information with the face information of the enterprise staff stored in a database in advance;
Setting a matching frequency threshold;
If the face information is successfully matched, confirming the identity of the staff, and prompting that the authentication is successful;
if the face information is failed to match, the face information of the enterprise staff is acquired again to carry out repeated matching, and if the repeated matching times are greater than the matching times threshold value, authentication failure is prompted.
3. The petrochemical enterprise multidimensional personnel positioning display management system according to claim 1, wherein: monitoring the GPS positioning state, and generating different GPS positioning state signals further comprises the following steps:
The method comprises the steps of periodically collecting main factor information data related to stability and accuracy of GPS positioning states, wherein the main factor information data comprise signal intensity data, satellite connection data and enterprise personnel positioning area related data;
the signal intensity data comprise signal intensity abnormal fluctuation indexes, the satellite connection data comprise satellite connection quantity mutation indexes, and the enterprise personnel positioning area association data comprise enterprise personnel positioning area association degrees;
The signal intensity abnormal fluctuation index, the satellite connection quantity mutation index and the association degree of the enterprise personnel positioning area are respectively marked as WG, BF and CF;
Calculating GPS positioning state coefficients according to the abnormal fluctuation index of signal intensity, the mutation index of satellite connection quantity and the association degree of the positioning areas of enterprise personnel by a formula, wherein the expression is that Wherein GX represents a GPS positioning state coefficient, and a 1、a2、a3 is a weight factor of a signal strength abnormality fluctuation index, a satellite connection quantity mutation index and an enterprise personnel positioning area association degree respectively.
4. A petrochemical enterprise multidimensional personnel location display management system in accordance with claim 3, wherein: comparing the GPS positioning state coefficient with a GPS positioning state coefficient threshold value to generate different GPS positioning state signals;
If the GPS positioning state coefficient is greater than or equal to the GPS positioning state coefficient threshold value, generating a positioning abnormal signal;
And if the GPS positioning state coefficient is smaller than the GPS positioning state coefficient threshold value, generating a positioning stable signal.
5. A petrochemical enterprise multidimensional personnel location display management system in accordance with claim 3, wherein: the acquisition logic of the signal strength abnormality fluctuation index is as follows:
Acquiring the intensity value of a satellite signal received by a GPS receiver in real time within a preset time period;
establishing a two-dimensional graph of the change of the intensity value of the satellite signal along with time according to the intensity values of the satellite signal acquired at different moments, wherein the horizontal and vertical directions represent time, and the vertical axis represents the intensity value of the satellite signal;
Calculating satellite signal intensity outliers at different moments according to a two-dimensional graph, wherein the expression is as follows Wherein lq i represents satellite signal strength outliers at different times, qd i represents satellite signal strength values at different times, pj represents a satellite signal strength average value at the remaining times, bz represents a satellite signal strength standard deviation at the remaining times, i represents sequence numbers i= {1, 2..and n }, n being a positive integer;
Comparing the satellite signal intensity outliers at different moments with a preset satellite signal intensity outlier threshold, and marking the satellite signal intensity outliers as satellite signal intensity abnormal outliers when the satellite signal intensity outliers are larger than the satellite signal intensity outlier threshold Calculating signal intensity anomaly fluctuation index according to satellite signal intensity anomaly outliers, the expression of which is as followsWhere j represents the order number j= {1, 2..m } of the satellite signal strength anomaly outlier, m being a positive integer.
6. A petrochemical enterprise multidimensional personnel location display management system in accordance with claim 3, wherein: the acquisition logic of the mutation index of the number of satellite connections is as follows:
Acquiring the number of satellites connected with the GPS receiver at different moments in real time in a preset time period;
Calculating satellite quantity difference values connected with GPS receivers at adjacent moments, comparing the satellite quantity difference values with preset satellite quantity difference value thresholds, and calculating satellite connection quantity mutation indexes when the satellite quantity difference values are larger than the satellite quantity difference value thresholds, wherein the expression is as follows Where cy represents the number of times the satellite number difference value is greater than the satellite number difference value threshold, and bl represents the total number of times the satellite number difference value is compared with the satellite number difference value threshold;
The logic for acquiring the association degree of the enterprise personnel positioning area is as follows:
Setting an area radius, calculating the peripheral range threshold of enterprise personnel according to the area radius, counting the number of enterprise personnel SH of which the positioning modes of other enterprise personnel are switched from the GPS positioning mode to the Bluetooth positioning mode within the peripheral range threshold of the enterprise personnel, and calculating the association degree of the positioning areas of the enterprise personnel, wherein the expression is CF=SH.
7. The petrochemical enterprise multidimensional personnel positioning display management system according to claim 1, wherein: when the Bluetooth beacon operates, acquiring a plurality of data which influence the operating state of the Bluetooth beacon, including battery state data and broadcast intensity data; the battery state data comprises a battery short-circuit abnormal occupation ratio, and the broadcast intensity data comprises a broadcast intensity floating coefficient;
the battery short-circuit abnormal occupation ratio and the broadcast intensity floating coefficient are respectively marked as OE and QG;
And calculating the Bluetooth beacon running state index according to the battery short-circuit abnormal occupation ratio and the broadcast intensity floating coefficient through a formula.
8. The petrochemical enterprise multidimensional personnel positioning display management system of claim 7, wherein: comparing the Bluetooth beacon running state index with the Bluetooth beacon running state index to generate different Bluetooth beacon running state signals;
If the Bluetooth beacon running state index is greater than or equal to the Bluetooth beacon running state index threshold, generating a running abnormal signal;
and if the Bluetooth beacon running state index is smaller than the Bluetooth beacon running state index threshold, generating a running stable signal.
9. The petrochemical enterprise multidimensional personnel positioning display management system of claim 7, wherein: the calculation expression of the battery short-circuit abnormality occupation ratio is as followsWhere lk represents the total number of times the battery of the bluetooth beacon has a short circuit state at the time of transmitting the bluetooth signal, and al represents the total number of times the battery of the bluetooth beacon has no short circuit state at the time of transmitting the bluetooth signal;
the expression for calculating the broadcast intensity floating coefficient is as follows Wherein gb denotes the broadcast intensity when the bluetooth beacon is broadcast, v denotes the sequence number v= {1, 2, & gt, u } in which the bluetooth beacon is broadcast in the period in which the environmental temperature exceeds the operating temperature, u is a positive integer, b denotes the sequence number b= {1, 2, & gt, r } in which the bluetooth beacon is broadcast in the period in which the environmental temperature does not exceed the operating temperature, r is a positive integer, [ t α,tβ ] denotes the period in which the environmental temperature of the bluetooth beacon exceeds the operating temperature, and [ t γ,tδ ] denotes the period in which the environmental temperature of the bluetooth beacon does not exceed the operating temperature.
10. The petrochemical enterprise multidimensional personnel positioning display management system according to claim 1, wherein: the intelligent switching module further comprises the following steps: when a positioning abnormality signal is received, acquiring the current position information of the enterprise personnel, wherein the current position information comprises longitude and latitude coordinates, judging the specific area of the enterprise personnel in the area divided in advance in the petrochemical enterprise factory area according to the current position information of the enterprise personnel, and marking the specific area as a target area;
after the enterprise personnel are in the target area in the area divided in advance in the petrochemical enterprise factory area, the frequency that the Bluetooth beacon running state signal in the area is a running stable signal is obtained;
Comparing the frequency of the operation stable signal with a frequency threshold, marking the current enterprise personnel as dangerous personnel when the frequency of the operation stable signal is smaller than the frequency threshold, and starting an early warning module;
when the frequency of the operation stabilizing signal is greater than or equal to a frequency threshold, switching to Bluetooth positioning, and verifying the switched Bluetooth positioning mode;
and verifying the switched Bluetooth positioning mode:
acquiring the position data of a plurality of Bluetooth beacons received by a current Bluetooth receiver, and judging the area where each Bluetooth beacon is located in the pre-divided area of the petrochemical enterprise factory area according to the position data of the plurality of Bluetooth beacons;
counting the number of Bluetooth beacons in the target area and the number of Bluetooth beacons not in the target area in the number range of a plurality of Bluetooth beacons received by the Bluetooth receiver;
When the number of the Bluetooth beacons in the target area is larger than that of the Bluetooth beacons not in the target area, the verification is successful, and the Bluetooth positioning mode is switched;
When the number of Bluetooth beacons in the target area is smaller than or equal to the number of Bluetooth beacons not in the target area, the verification is failed, the current enterprise personnel are marked as dangerous personnel, and an early warning module is started;
When the positioning stable signal is received, the switching of the positioning mode is not needed.
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