CN114414030B - Positioning boundary pile for field search and rescue and positioning method - Google Patents
Positioning boundary pile for field search and rescue and positioning method Download PDFInfo
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- CN114414030B CN114414030B CN202111507968.XA CN202111507968A CN114414030B CN 114414030 B CN114414030 B CN 114414030B CN 202111507968 A CN202111507968 A CN 202111507968A CN 114414030 B CN114414030 B CN 114414030B
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- 230000003287 optical effect Effects 0.000 claims abstract description 47
- 238000012360 testing method Methods 0.000 claims abstract description 44
- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 18
- 238000012549 training Methods 0.000 claims description 15
- 238000013527 convolutional neural network Methods 0.000 claims description 6
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- 238000003860 storage Methods 0.000 description 3
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- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
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Abstract
The invention discloses a field search and rescue positioning limit pile, which comprises a remote monitoring terminal and a plurality of intelligent limit piles distributed in a field ecological protection area, wherein each intelligent limit pile is internally provided with a laser vibration measuring device, each laser vibration measuring device is connected with a test optical cable, and the plurality of test optical cables are distributed under a path in the field ecological protection area; the remote monitoring terminal internally stores geographic position information of each intelligent boundary pile and laying path information of each test optical cable; the laser vibration measuring device comprises a laser emitting module, a circulator, a vibration measuring host and a communication module; the pulse signal emitted by the laser emission module is injected into the test optical cable through the circulator, and backward Rayleigh scattering light generated by the test optical cable under the interference of external vibration enters the vibration testing host through the circulator; the vibration measuring host computer obtains the vibration source position information on the path through data processing analysis, and sends the position information to the remote monitoring terminal through the communication module.
Description
Technical Field
The invention belongs to the technical field of field search and rescue positioning, and particularly relates to a field search and rescue positioning boundary pile and a positioning method.
Background
Since the 90 s of the last century, more and more people are enthusiastic for outdoor exploration and travel, and donkey friends adventure to catch up on events due to insufficient professional knowledge, insufficient equipment and other preparation, communication blockage and the like. In addition, the demands of tourists are continuously improved in recent years, the tourist consciousness of many people is greatly changed, and the tourist routes are designed according to own will, so that the method is no longer suitable for mass tourism, namely a tourism organization mode which is relatively bound with individuality, and the tourism mode is changed from the traditional 'team tour' to the novel 'autonomous tour' in an increasingly-increasing outdoor activities of families, groups and organizations. These transitions bring about a larger market and also bring about new problems, such as: poor communication channel, frequent safety accidents, etc. Because the trapped outdoor sporter mostly does not know how to judge the north and south after getting lost, even if the mobile phone has a signal to be connected with the outside, the accurate position of the mobile phone is difficult to report, and the difficulty is increased for rescue. If the wireless base station signal is not covered in the blind area, the danger probability of life danger of the victim is greatly increased because the victim cannot be rescued.
Therefore, how to better organize and command search and rescue actions under complex severe conditions is a problem which needs to be solved urgently. It is also necessary to reduce the likelihood of accidents for the search and rescue team members during the search and rescue process. Therefore, an effective field positioning search and rescue system is needed.
Because the field is often not covered by the base station signal, a common mobile phone or a common module generally cannot perform a communication function. Currently, a search and rescue team generally configures a GPS positioning system and a handheld interphone, and the team with good conditions can be provided with a satellite phone. Later, manufacturers have successively introduced interphones with positioning function, and integrate the GPS module into the interphone, but this also only sees the own position information.
The Chinese patent with publication number of CN107144830A discloses a field searching and rescuing positioning device and positioning method, the device comprises a plurality of field pilot signal receiving and transmitting modules arranged on a power transmission tower and a remote monitoring module arranged at a remote monitoring center and matched with the field pilot signal receiving and transmitting units; the on-site pilot signal receiving and transmitting module comprises a connecting rod, a first motor, a first connecting plate, a first shell, a pilot signal receiving and transmitting unit, a control unit and an on-site power carrier signal receiving and transmitting unit, wherein one end of the connecting rod is fixedly connected with a power transmission tower, the first motor is arranged at the bottom end of the connecting rod, the first connecting plate is fixedly connected with an output shaft of the first motor, the upper end face of the first shell is fixedly connected with the first connecting plate, and the pilot signal receiving and transmitting unit, the control unit and the on-site power carrier signal receiving and transmitting unit are arranged in the first shell; the remote monitoring module comprises a remote power carrier signal receiving and transmitting unit matched with the on-site power carrier signal receiving and transmitting unit and a computer terminal; the computer terminal acquires the delay and the number of the mobile phone by acquiring a plurality of on-site pilot signal receiving and transmitting units, so that the mobile phone is positioned, and the security of positioning and tracking field operation personnel is greatly improved. However, the positioning of the trapped person in this patent relies on the trapped person actively connecting the mobile phone to the on-site pilot signal transceiver module, and if the mobile phone of the trapped person is not powered on or is not connected to the on-site pilot signal transceiver module, the positioning device still cannot acquire the position information of the trapped person.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a field search and rescue positioning boundary pile and a positioning method.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the field search and rescue positioning limit pile comprises a remote monitoring terminal and a plurality of intelligent limit piles distributed in a field ecological protection area, wherein each intelligent limit pile is internally provided with a laser vibration measuring device, each laser vibration measuring device is connected with a test optical cable, a plurality of test optical cables are distributed under paths in the field ecological protection area, and at least one test optical cable is laid under each path in the field ecological protection area; the remote monitoring terminal is internally stored with geographic position information of each intelligent boundary pile and laying path information of each test optical cable, and is in wireless communication connection with each intelligent boundary pile; the laser vibration measuring device comprises a laser emitting module, a circulator, a vibration measuring host and a communication module, wherein the circulator is respectively connected with the laser emitting module, the test optical cable and the vibration measuring host, and the vibration measuring host is also connected with the laser emitting module; the pulse signal emitted by the laser emission module is injected into the test optical cable through the circulator, and backward Rayleigh scattering light generated by the test optical cable under the interference of external vibration enters the vibration testing host through the circulator; the vibration measuring host computer obtains the vibration source position information on the path through data processing analysis, and sends the position information to the remote monitoring terminal through the communication module.
Specifically, the laser emission module comprises a laser, a modulator and an amplifier which are sequentially connected;
the laser is a narrow linewidth laser and is used for providing continuous light with a narrow linewidth;
the modulator is used for modulating the continuous photointerrupter into continuous pulse light;
the amplifier is used for amplifying the optical power of the pulse light.
Specifically, the vibration measuring host comprises a photoelectric detector, a data acquisition unit and a processor which are connected in sequence;
the photoelectric detector is used for converting the optical signal output by the circulator into an electric signal;
the data acquisition device is used for acquiring the electric signals and transmitting the electric signals to the processor;
the processor is used for analyzing and identifying the characteristic parameters of the electric signals, and calculating to obtain the position information of the vibration source on the corresponding laying path of the test optical cable.
Corresponding to the positioning device, the invention also discloses a field search and rescue positioning method, which comprises the following steps:
s1, arranging a plurality of intelligent boundary piles according to the number of paths in a field ecological protection area, wherein each intelligent boundary pile is connected with a test optical cable, and each test optical cable is correspondingly laid under one path;
s2, when a search and rescue task is required to be executed in the protection area, controlling the laser vibration measuring devices in all intelligent boundary piles to be started through the remote monitoring terminal, and collecting the position information of all vibration sources in the protection area;
s3, the remote monitoring terminal issues the position information of all vibration sources and the laying path information of all test optical cables in the protection area to the handheld terminals of all search and rescue personnel;
and S4, the search and rescue personnel execute the search and rescue task according to the position information and the path information displayed by the handheld terminal.
Specifically, in step S2, after collecting the position information of all vibration sources in the protection area, the vibration sources are further screened, and the vibration sources caused by the non-human activities are removed, where the removing method includes the following steps:
s21, manufacturing a human activity vibration source and a non-human activity vibration source in a protection area, controlling the starting of laser vibration measuring devices in all intelligent boundary piles through a remote monitoring terminal, and collecting vibration data of all vibration sources in the protection area;
s22, manually calibrating the vibration source type of the collected vibration data, and dividing the calibrated vibration data into a training set and a verification set;
s23, constructing a convolutional neural network, inputting training set data into the convolutional neural network for training for a plurality of times, and obtaining a vibration source type identification model;
s24, inputting verification set data into a trained vibration source type identification model, judging whether the identification of the model meets a preset requirement, if so, completing the training, otherwise, returning to the step S23 to continue the training;
and S25, when the search and rescue task is executed, the vibration data received by the remote monitoring terminal are input into the vibration source type identification model, the vibration source types of all the vibration data are identified, and the vibration sources caused by the non-human activities are removed.
In particular, the vibration data includes a vibration frequency and a vibration amplitude, and the vibration source caused by human activity and the vibration source caused by non-human activity are relatively easily distinguished in the vibration frequency and the vibration amplitude.
Specifically, in step S3, the remote monitoring terminal plans an optimal search and rescue path scheme for each search and rescue person according to the current position information of the search and rescue person, the position information of each vibration source and the path information.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the intelligent limit piles are distributed in the field ecological protection area, each intelligent limit pile is connected with one test optical cable, and the test optical cables are distributed under the paths in the field ecological protection area to form the dynamic monitoring network which covers all paths in the protection area, so that vibration information on all paths in the protection area can be monitored in real time, no base station signals are needed, trapped personnel do not need to carry any positioning equipment or communication equipment, and the trapped personnel can be helped to quickly find the positions of the trapped personnel, thereby shortening the time for search and rescue work and improving the search and rescue efficiency.
Drawings
FIG. 1 is a schematic diagram illustrating a distributed installation of field search and rescue positioning world piles in accordance with an embodiment of the present invention.
Fig. 2 is a flow chart of a field search and rescue positioning method in an embodiment of the invention.
FIG. 3 is a flow chart of eliminating vibration sources caused by non-human activities in an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the embodiment provides a field search and rescue positioning boundary pile, which comprises a remote monitoring terminal and a plurality of intelligent boundary piles distributed in a field ecological protection area, wherein each intelligent boundary pile is internally provided with a laser vibration measuring device, each laser vibration measuring device is connected with a test optical cable, the plurality of test optical cables are distributed and laid under paths in the field ecological protection area, and at least one test optical cable is laid under each path in the field ecological protection area; the remote monitoring terminal is internally stored with geographic position information of each intelligent boundary pile and laying path information of each test optical cable, and is in wireless communication connection with each intelligent boundary pile; the laser vibration measuring device comprises a laser emitting module, a circulator, a vibration measuring host and a communication module, wherein the circulator is respectively connected with the laser emitting module, the test optical cable and the vibration measuring host, and the vibration measuring host is also connected with the laser emitting module; the pulse signal emitted by the laser emission module is injected into the test optical cable through the circulator, and backward Rayleigh scattering light generated by the test optical cable under the interference of external vibration enters the vibration testing host through the circulator; the vibration measuring host computer obtains the vibration source position information on the path through data processing analysis, and sends the position information to the remote monitoring terminal through the communication module.
Specifically, the laser emission module comprises a laser, a modulator and an amplifier which are sequentially connected;
the laser is a narrow linewidth laser and is used for providing continuous light with a narrow linewidth;
the modulator is used for modulating the continuous photointerrupter into continuous pulse light;
the amplifier is used for amplifying the optical power of the pulse light.
Specifically, the vibration measuring host comprises a photoelectric detector, a data acquisition unit and a processor which are connected in sequence;
the photoelectric detector is used for converting the optical signal output by the circulator into an electric signal;
the data acquisition device is used for acquiring the electric signals and transmitting the electric signals to the processor;
the processor is used for analyzing and identifying the characteristic parameters of the electric signals, and calculating to obtain the position information of the vibration source on the corresponding laying path of the test optical cable.
Corresponding to the positioning device, the embodiment also discloses a field search and rescue positioning method, as shown in fig. 2, comprising the following steps:
s1, arranging a plurality of intelligent boundary piles according to the number of paths in a field ecological protection area, wherein each intelligent boundary pile is connected with a test optical cable, and each test optical cable is correspondingly laid under one path;
s2, when a search and rescue task is required to be executed in the protection area, controlling the laser vibration measuring devices in all intelligent boundary piles to be started through the remote monitoring terminal, and collecting the position information of all vibration sources in the protection area;
s3, the remote monitoring terminal issues the position information of all vibration sources and the laying path information of all test optical cables in the protection area to the handheld terminals of all search and rescue personnel;
and S4, the search and rescue personnel execute the search and rescue task according to the position information and the path information displayed by the handheld terminal.
Specifically, as shown in fig. 3, in step S2, after collecting the position information of all vibration sources in the protection area, the vibration sources are further screened, and the vibration sources caused by non-human activities are removed, where the removing method includes the following steps:
s21, manufacturing a human activity vibration source and a non-human activity vibration source in a protection area, controlling the starting of laser vibration measuring devices in all intelligent boundary piles through a remote monitoring terminal, and collecting vibration data of all vibration sources in the protection area;
s22, manually calibrating the vibration source type of the collected vibration data, and dividing the calibrated vibration data into a training set and a verification set;
s23, constructing a convolutional neural network, inputting training set data into the convolutional neural network for training for a plurality of times, and obtaining a vibration source type identification model;
s24, inputting verification set data into a trained vibration source type identification model, judging whether the identification of the model meets a preset requirement, if so, completing the training, otherwise, returning to the step S23 to continue the training;
and S25, when the search and rescue task is executed, the vibration data received by the remote monitoring terminal are input into the vibration source type identification model, the vibration source types of all the vibration data are identified, and the vibration sources caused by the non-human activities are removed.
In particular, the vibration data includes a vibration frequency and a vibration amplitude, and the vibration source caused by human activity and the vibration source caused by non-human activity are relatively easily distinguished in the vibration frequency and the vibration amplitude.
Specifically, in step S3, the remote monitoring terminal plans an optimal search and rescue path scheme for each search and rescue person according to the current position information of the search and rescue person, the position information of each vibration source and the path information.
As shown in fig. 1, in this embodiment, taking a search and rescue operation of a certain field natural protection area as an example, a remote monitoring terminal is used to control the laser vibration measuring devices in all intelligent world piles to be turned on, and position information of all vibration sources in the protection area is collected to obtain that two vibration sources are located in different positions in the protection area; the remote monitoring terminal plans A, B two search and rescue paths according to the current position information of the search and rescue personnel, the position information of the two vibration sources and the path information in the protection area, and the search and rescue personnel can search and rescue the two trapped personnel simultaneously according to the planned search and rescue paths directly, so that the search and rescue efficiency is greatly improved; in this embodiment, the position information of the search and rescue personnel is also detected and updated in real time through the laser vibration measuring device.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The field search and rescue positioning limit pile is characterized by comprising a remote monitoring terminal and a plurality of intelligent limit piles distributed in a field ecological protection area, wherein the number of the intelligent limit piles is arranged according to the number of paths in the field ecological protection area; each intelligent boundary pile is internally provided with a laser vibration measuring device, each laser vibration measuring device is connected with a test optical cable, a plurality of test optical cables are distributed and laid under paths in a field ecological protection area, and at least one test optical cable is laid under each path in the field ecological protection area; the remote monitoring terminal is internally stored with geographic position information of each intelligent boundary pile and laying path information of each test optical cable, and is in wireless communication connection with each intelligent boundary pile; the laser vibration measuring device comprises a laser emitting module, a circulator, a vibration measuring host and a communication module, wherein the circulator is respectively connected with the laser emitting module, the test optical cable and the vibration measuring host, and the vibration measuring host is also connected with the laser emitting module; the pulse signal emitted by the laser emission module is injected into the test optical cable through the circulator, and backward Rayleigh scattering light generated by the test optical cable under the interference of external vibration enters the vibration testing host through the circulator; the vibration measuring host computer obtains vibration source position information on the path through data processing analysis, and sends the position information to the remote monitoring terminal through the communication module; the remote monitoring terminal plans the search and rescue path according to the current position information of the search and rescue personnel, the position information of the vibration source and the path information in the protection area.
2. The field search and rescue positioning limit pile according to claim 1, wherein the laser emitting module comprises a laser, a modulator and an amplifier which are connected in sequence;
the laser is a narrow linewidth laser and is used for providing continuous light with a narrow linewidth;
the modulator is used for modulating the continuous photointerrupter into continuous pulse light;
the amplifier is used for amplifying the optical power of the pulse light.
3. The field search and rescue positioning limit pile according to claim 1, wherein the vibration measuring host comprises a photoelectric detector, a data collector and a processor which are connected in sequence;
the photoelectric detector is used for converting the optical signal output by the circulator into an electric signal;
the data acquisition device is used for acquiring the electric signals and transmitting the electric signals to the processor;
the processor is used for analyzing and identifying the characteristic parameters of the electric signals, and calculating to obtain the position information of the vibration source on the corresponding laying path of the test optical cable.
4. A field search and rescue positioning method based on the field search and rescue positioning boundary pile as defined in any one of claims 1 to 3, which is characterized by comprising the following steps:
s1, arranging a plurality of intelligent boundary piles according to the number of paths in a field ecological protection area, wherein each intelligent boundary pile is connected with a test optical cable, and each test optical cable is correspondingly laid under one path;
s2, when a search and rescue task is required to be executed in the protection area, controlling the laser vibration measuring devices in all intelligent boundary piles to be started through the remote monitoring terminal, and collecting the position information of all vibration sources in the protection area;
s3, the remote monitoring terminal issues the position information of all vibration sources and the laying path information of all test optical cables in the protection area to the handheld terminals of all search and rescue personnel;
and S4, the search and rescue personnel execute the search and rescue task according to the position information and the path information displayed by the handheld terminal.
5. The method for locating field search and rescue according to claim 4, wherein in step S2, after collecting the position information of all vibration sources in the protection area, the vibration sources are further screened, and vibration sources caused by non-human activities are removed, the removing method comprises the following steps:
s21, manufacturing a human activity vibration source and a non-human activity vibration source in a protection area, controlling the starting of laser vibration measuring devices in all intelligent boundary piles through a remote monitoring terminal, and collecting vibration data of all vibration sources in the protection area;
s22, manually calibrating the vibration source type of the collected vibration data, and dividing the calibrated vibration data into a training set and a verification set;
s23, constructing a convolutional neural network, inputting training set data into the convolutional neural network for training for a plurality of times, and obtaining a vibration source type identification model;
s24, inputting verification set data into a trained vibration source type identification model, judging whether the identification of the model meets a preset requirement, if so, completing the training, otherwise, returning to the step S23 to continue the training;
and S25, when the search and rescue task is executed, the vibration data received by the remote monitoring terminal are input into the vibration source type identification model, the vibration source types of all the vibration data are identified, and the vibration sources caused by the non-human activities are removed.
6. A field search and rescue positioning method as defined in claim 5, wherein the vibration data includes a vibration frequency and a vibration amplitude.
7. The method of claim 4, wherein in step S3, the remote monitoring terminal further plans an optimal search and rescue path scheme for each search and rescue personnel according to current position information of the search and rescue personnel, position information of each vibration source and path information.
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