CN118506505B - Electronic fence-based false entry early warning method and system - Google Patents
Electronic fence-based false entry early warning method and system Download PDFInfo
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- CN118506505B CN118506505B CN202410948679.0A CN202410948679A CN118506505B CN 118506505 B CN118506505 B CN 118506505B CN 202410948679 A CN202410948679 A CN 202410948679A CN 118506505 B CN118506505 B CN 118506505B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 30
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- 230000000903 blocking effect Effects 0.000 claims description 119
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/001—Alarm cancelling procedures or alarm forwarding decisions, e.g. based on absence of alarm confirmation
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/008—Alarm setting and unsetting, i.e. arming or disarming of the security system
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Abstract
The application relates to a false entry early warning method and a system based on an electronic fence, and relates to the field of safety protection technology; outputting an abnormal signal when the pulse transmission state is consistent with a preset abnormal transmission state, and determining an abnormal time point according to the output time point of the abnormal signal; after the inner rail outputs an abnormal signal, a detection interval with the width being the preset detection duration is established by taking the corresponding abnormal time point as a front end point; judging whether the outer fence outputs an abnormal signal in the detection interval; if the outer fence does not output an abnormal signal, outputting a demand detection alarm signal; if the peripheral column outputs an abnormal signal, an error input/output signal is output. The application has the effect of reducing the occurrence of the condition that personnel enter by mistake and leave and the personnel still need to detect the monitoring area to cause the waste of human resources.
Description
Technical Field
The application relates to the field of safety protection technology, in particular to an electronic fence-based false entry early warning method and system.
Background
The electronic fence is an advanced perimeter anti-theft alarm system and mainly comprises three parts of an electronic fence host, a front end accessory and a rear end control system. The electronic fence has multiple functions of blocking, alarming, deterring and the like, can effectively prevent illegal invasion and timely inform security personnel of processing, and is widely applied to environments such as transformer substations, power plants, water plants, factories and industrial sites needing to ensure safety.
In the related art, the working principle of the electronic fence is that high-voltage pulse signals are emitted through a pulse generator, the signals form a loop on a fence line, when the fence is damaged or short-circuited, the pulse signals cannot circulate normally, and a host machine can send out alarm signals after detecting the situation.
In the above related art, when the external personnel block the pulse signal on the fence, the host computer will send out an alarm signal, at this time, there is a situation that the personnel is frightened by mistake and leaves in time, and the staff still needs to detect the monitoring area enclosed by the electronic fence according to the alarm signal, resulting in waste of human resources, and there is still room for improvement.
Disclosure of Invention
In order to reduce the occurrence of human resource waste caused by the fact that personnel enter the monitoring area by mistake leave and the personnel still need to detect the monitoring area, the application provides an electronic fence-based false entry early warning method and an electronic fence-based false entry early warning system.
In a first aspect, the application provides an electronic fence-based false entry early warning method, which adopts the following technical scheme:
an electronic fence-based false entry early warning method comprises the following steps:
setting an outer rail and an inner rail and acquiring pulse transmission states of the outer rail and the inner rail, wherein the inner rail is positioned inside the outer rail;
outputting an abnormal signal when the pulse transmission state is consistent with a preset abnormal transmission state, and determining an abnormal time point according to the output time point of the abnormal signal;
after the inner rail outputs an abnormal signal, a detection interval with the width being the preset detection duration is established by taking the corresponding abnormal time point as a front end point;
judging whether the outer fence outputs an abnormal signal in the detection interval;
If the outer fence does not output an abnormal signal, outputting a demand detection alarm signal;
if the peripheral column outputs an abnormal signal, an error input/output signal is output.
Optionally, if the peripheral fence outputs an abnormal signal, the error entry early warning method based on the electronic fence further includes:
Defining an abnormal time point corresponding to an abnormal signal output by the outer fence before the inner fence as a first time point, defining an abnormal time point corresponding to an abnormal signal output by the outer fence after the inner fence as a second time point, defining an abnormal time point of the abnormal signal output by the inner fence as an occurrence time point, and defining a time point when the abnormal signal in the inner fence disappears as a disappearance time point;
Determining a first occurrence interval duration according to the first time point and the occurrence time point, and determining a second occurrence interval duration according to the second time point and the disappearance time point;
calculating a difference value according to the first occurrence interval duration and the second occurrence interval duration to determine a movement error duration;
Judging whether the movement error time length is smaller than a preset equivalent error time length or not;
if the movement error time is smaller than the same error time, outputting an error-in-out signal;
if the movement error time is not less than the equivalent error time, outputting an abnormal departure signal.
Optionally, after the occurrence time point and the disappearance time point are determined, the error entering early warning method based on the electronic fence further includes:
determining the thinking duration of the personnel according to the occurrence time point and the disappearance time point;
Judging whether the thinking duration of the personnel is longer than the preset normal thinking duration;
If the thinking time of the personnel is longer than the normal thinking time, outputting a demand detection alarm signal;
and if the personnel thinking time is not longer than the normal thinking time, determining the movement error time.
Optionally, outputting an abnormal signal on the inner fence, and the error entering early warning method based on the electronic fence further comprises:
After the inner rail outputs an abnormal signal, a fixed interval with the width being a preset fixed duration is established by taking a corresponding abnormal time point as a rear end point;
judging whether the outer fence outputs an abnormal signal in the fixed interval;
If the peripheral column outputs an abnormal signal, establishing a detection interval to output a demand detection alarm signal or a false entering and exiting signal;
If the outer fence does not output an abnormal signal, establishing a detection interval and judging whether the outer fence and the inner fence of the detection interval output the abnormal signal;
if no abnormal signal is output by the inner fence and the outer fence in the detection zone, outputting an electronic fence failure signal;
If the detecting section inner and outer fences output abnormal signals, abnormal personnel leaving signals are output.
Optionally, if the detecting interval inner and outer fences output abnormal signals, the error entering early warning method based on the electronic fence further includes:
Acquiring the latest output pulse number and successfully receiving the pulse number when the inner fence outputs an abnormal signal;
determining the number of interval pulses according to the latest output pulse number and the successfully received pulse number, and calculating according to the number of interval pulses and the preset pulse interval duration to determine the pulse transmitting distance;
determining an internal pulse blocking point on a preset pulse loop according to the pulse transmitting path;
determining an external pulse blocking point when the peripheral column outputs an abnormal signal, and determining a blocking interval distance according to the internal pulse blocking point and the external pulse blocking point;
judging whether the blocking interval distance is smaller than a preset allowable interval distance or not;
If the blocking interval distance is smaller than the allowable interval distance, outputting an error-in-out signal or an abnormal person out-of-out signal;
and outputting a demand detection alarm signal if the blocking interval distance is not smaller than the allowable interval distance.
Optionally, if the blocking interval distance is smaller than the allowable interval distance, the error entry early warning method based on the electronic fence further includes:
acquiring a first pulse blocking point according to an abnormal signal output by the inner fence and the outer fence in the fixed zone;
determining a blocking distance under the outer fence according to the first pulse blocking point and the external pulse blocking point;
Judging whether the blocking distance is smaller than a preset allowable deviation distance or not;
outputting a misentering and exiting signal if the blocking separation distance is smaller than the allowable deviation distance;
And outputting a demand detection alarm signal if the blocking distance is not smaller than the allowable deviation distance.
Optionally, the method further comprises:
Establishing a statistical interval with the width being the preset statistical duration in a preset time axis by taking the current time point as a rear end point;
acquiring each internal pulse blocking point in the statistical interval, and defining each internal pulse blocking point as a history blocking point;
determining a blocking coverage area at a history blocking point according to a preset coverage area;
Counting according to each history blocking point in the blocking coverage area to determine the number of the interval blocking;
and defining the blocking coverage areas with the blocking number of the intervals being larger than the preset reference blocking number as high-frequency intervals, and defining the history blocking points for determining the high-frequency intervals as high-frequency false entry points.
In a second aspect, the application provides an electronic fence-based false entry early warning system, which adopts the following technical scheme:
an electronic fence-based false entry early warning system, comprising:
an acquisition module for acquiring pulse transmission states of the outer rail and the inner rail, wherein the inner rail is positioned inside the outer rail;
the processing module is connected with the acquisition module and the judging module and is used for storing and processing information;
the judging module is connected with the acquisition module and the processing module and is used for judging information;
when the judging module judges that the pulse transmission state is consistent with the preset abnormal transmission state, the processing module outputs an abnormal signal, and an abnormal time point is determined according to the output time point of the abnormal signal;
After the processing module outputs an abnormal signal, a detection interval with the width being the preset detection duration is established by taking the corresponding abnormal time point as a front end point;
The judging module judges whether the outer fence outputs an abnormal signal in the detection interval;
if the judging module judges that the outer fence does not output an abnormal signal, the processing module outputs a demand detection alarm signal;
if the judging module judges that the outer fence outputs an abnormal signal, the processing module outputs a false-in and false-out signal.
In summary, the present application includes at least one of the following beneficial technical effects:
The inner and outer electronic fences are arranged, so that when people mistakenly enter the inner fence and then get away quickly after being frightened by alarming, the situation can be effectively monitored, the staff does not need to intervene in treatment, and the waste of human resources is reduced;
whether the personnel really realize leaving from the protection area or not is analyzed by monitoring the movement condition of the personnel from the peripheral fence to the inner fence and from the inner fence to the peripheral fence, so that the accuracy of false entry monitoring is improved;
The position points where personnel enter by mistake can be determined through the transmission condition of the pulse, so that the difficult and easy error entering condition of each position point can be determined through statistics of error entering times in historical time, and further the protection area can be monitored conveniently.
Drawings
Fig. 1 is a flow chart of an electronic fence based false entry warning method.
Fig. 2 is a schematic view of a protective area and an electronic fence arrangement.
Fig. 3 is a flow chart of a method of personnel movement status analysis.
Fig. 4 is a flow chart of a personnel wait condition analysis method.
FIG. 5 is a flow chart of a method of analyzing a failure condition of an electronic fence.
Fig. 6 is a flow chart of a method of personnel false entry location analysis.
Fig. 7 is a flowchart of a person misentry specification determination method.
Fig. 8 is a flow chart of a comprehensive false entry statistics method.
FIG. 9 is a block flow diagram of an electronic fence based false entry warning method.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to fig. 1 to 9 and the embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Embodiments of the application are described in further detail below with reference to the drawings.
The embodiment of the application discloses an error entry early warning method based on an electronic fence, which is characterized in that an inner electronic fence and an outer electronic fence are arranged, so that the specific movement condition of an error entry person can be analyzed, the condition can be known in time when the error entry person enters and leaves a post-standing horse, management personnel do not need to intervene in treatment, and the waste of human resources is reduced; meanwhile, the error entry times of all the position points in the historical time can be counted, so that a manager can conveniently perform special treatment on the position points which are easy to enter by mistake, and effective monitoring of a protection area is realized.
Referring to fig. 1, the method flow of the error entry early warning method based on the electronic fence comprises the following steps:
Step S100: setting an outer rail and an inner rail and acquiring pulse transmission states of the outer rail and the inner rail, wherein the inner rail is positioned inside the outer rail.
The outer fence is an electronic fence outside a required protection area, the inner fence is an electronic fence at a boundary line of the required protection area, and referring to fig. 2, the inner fence is completely wrapped by the outer fence, wherein both the inner fence and the outer fence are provided with pulse transmitters and pulse receivers, so that whether personnel enter can be determined through pulse receiving conditions; the pulse transmission state is a state in which the pulse receiver receives a pulse signal, and includes a state in which the pulse signal is successfully received and a state in which the pulse signal is not received.
Step S101: outputting an abnormal signal when the pulse transmission state is consistent with a preset abnormal transmission state, and determining an abnormal time point according to the output time point of the abnormal signal.
The abnormal transmission state is a pulse transmission state when the pulse signal is not received, when the pulse transmission state is consistent with the abnormal transmission state, the condition that an object blocks the pulse signal transmission, namely, the object passes through the electronic fence is indicated, at the moment, a person can be identified to be wrongly input, an abnormal signal is output to identify the condition, and meanwhile, an abnormal time point is determined, so that the follow-up analysis is facilitated.
Step S102: after the inner rail outputs the abnormal signal, a detection interval with the width being the preset detection duration is established by taking the corresponding abnormal time point as the front end point.
After the abnormal signal is output by the inner fence, the condition that a person enters the inner fence after crossing the outer fence is indicated, and the condition of the person entering by mistake can be analyzed; the detection time length is a fixed value time length set by a worker, for example, 5s, and a detection interval is established so as to acquire data in the detection time length; when the internal fence and the peripheral fence output abnormal signals within a preset unit time length, an alarm in the protection area can be controlled to sound so as to deter people from entering by mistake.
Step S103: and judging whether the outer fence outputs an abnormal signal in the detection interval.
The purpose of the judgment is to know whether the person entering by mistake is deterred by the alarm and leaves the protection area.
Step S1031: if the outer fence does not output an abnormal signal, a demand detection alarm signal is output.
When the outer fence does not output an abnormal signal, the personnel is not timely withdrawn from the protection area, namely the personnel is an intruder, and a demand detection alarm signal is output at the moment so that the manager can learn the situation, so that the manager can intervene manually to search for the intruder.
Step S1032: if the peripheral column outputs an abnormal signal, an error input/output signal is output.
When the peripheral fence outputs an abnormal signal, the personnel is frightened by an alarm, the personnel possibly enter the area by mistake at the moment, and the error entering and exiting signal is output to identify the situation, so that the manager can know the invasion situation of the personnel, the situation that the manager needs to detect the situation of the area on the spot is reduced, and the waste of human resources is reduced.
Referring to fig. 3, if the peripheral fence outputs an abnormal signal, the error entry early warning method based on the electronic fence further includes:
step S200: an abnormal time point corresponding to an abnormal signal output by the outer fence before the inner fence is defined as a first time point, an abnormal time point corresponding to an abnormal signal output by the outer fence after the inner fence is defined as a second time point, an abnormal time point of an abnormal signal output by the inner fence is defined as an occurrence time point, and a time point when the abnormal signal in the inner fence disappears is defined as a disappearance time point.
Defining a first time point, a second time point, an occurrence time point and a disappearance time point to identify states of wrongly entered personnel at different time points, so that subsequent analysis is facilitated.
Step S201: and determining the first occurrence interval duration according to the first time point and the occurrence time point, and determining the second occurrence interval duration according to the second time point and the disappearance time point.
The first occurrence interval duration is the duration consumed by the intruder entering the inner fence from the peripheral fence, namely the interval duration between the first time point and the occurrence time point, and the second occurrence interval duration is the duration consumed by the intruder moving from the inner fence to the peripheral fence, namely the interval duration between the second time point and the disappearance time point.
Step S202: and calculating a difference value according to the first occurrence interval duration and the second occurrence interval duration to determine the movement error duration.
The movement error time length is the difference between the first occurrence interval time length and the second occurrence interval time length, and the difference is an absolute value.
Step S203: judging whether the movement error time length is smaller than a preset equivalent error time length or not.
The equivalent error time length is the maximum movement error time length allowed to appear when the same person is considered to carry out the movement operation set by the staff, and the judgment purpose is to know whether a person enters the inner fence or not and then throw out an object from the inner fence to block pulse signal transmission of the outer fence so that the system misjudges that the person comes out.
Step S2031: if the movement error time is smaller than the same error time, outputting an error-in-out signal.
When the movement error time is smaller than the equivalent error time, the user can be identified to leave, and a false-in and leave signal is output.
Step S2032: if the movement error time is not less than the equivalent error time, outputting an abnormal departure signal.
When the movement error time is not less than the equivalent error time, the situation that the person throws out an object to imitate the person to leave is indicated, and an abnormal leaving signal is output at the moment to identify the situation, so that a manager can know the situation in time for intervention treatment.
Referring to fig. 4, after the occurrence time point and the disappearance time point are determined, the error entry early warning method based on the electronic fence further includes:
step S300: and determining the thinking duration of the personnel according to the occurrence time point and the disappearance time point.
The thinking time of the person is the time interval between the occurrence time point and the disappearance time point, namely the time that the person stays at the inner fence.
Step S301: judging whether the thinking time of the personnel is longer than the preset normal thinking time.
The normal thinking time length is the maximum personnel thinking time length which is set by the staff and allows the personnel to think whether to leave after hearing the alarm, and the purpose of judgment is to know whether the personnel stay in the inner fence abnormally or not.
Step S3011: if the thinking time of the personnel is longer than the normal thinking time, outputting a demand detection alarm signal.
When the thinking time of the personnel is longer than the normal thinking time, the condition that the personnel stay in the inner fence is indicated, at the moment, a plurality of people possibly move to the inner fence at the same time and enable one person to stay in the inner fence so that the demand detection alarm signal is not output, the condition that the rest of the personnel normally enter the protection area occurs, and at the moment, the demand detection alarm signal is output so that the management personnel can intervene in time.
Step S3012: and if the personnel thinking time is not longer than the normal thinking time, determining the movement error time.
When the thinking time of the personnel is not longer than the normal thinking time, the situation that the personnel stays at the inner fence abnormally is not shown, and then the analysis is performed normally.
Referring to fig. 5, the abnormal signal is output from the inner rail, and the error entry early warning method based on the electronic rail further includes:
step S400: after the inner rail outputs the abnormal signal, a fixed interval with the width being the preset fixed duration is established by taking the corresponding abnormal time point as the rear end point.
The fixed time length is a fixed time length set by a worker, for example, 10s, and a fixed interval is established so as to be convenient for acquiring data in the fixed time length and facilitating subsequent analysis.
Step S401: and judging whether the outer fence outputs an abnormal signal in the fixed interval.
The purpose of the judgment is to know whether an outside person has entered the inner rail across the outer rail within the fixed interval.
Step S4011: if the peripheral column outputs an abnormal signal, the detection interval is established to output a demand detection alarm signal or a false entering and exiting signal.
When the peripheral fence outputs an abnormal signal, the personnel can enter the inner fence across the outer fence, and the analysis can be performed normally.
Step S4012: if the outer fence does not output an abnormal signal, the detection interval is established, and whether the outer fence and the inner fence in the detection interval output the abnormal signal is judged.
When the outer rail does not output an abnormal signal, indicating that no personnel crosses the outer rail and enters the inner rail, wherein the inner rail outputs the abnormal signal due to the fact that a pulse emitter of the inner rail is possibly damaged, and further analysis is needed for the situation; the purpose of the judgment is to know whether a person is moving from the inner rail to the outer rail, and thus whether a person is hidden in the protection area in advance.
Step S40121: if no abnormal signal is output by the inner fence and the outer fence in the detection zone, outputting an electronic fence failure signal.
When no abnormal signal is output by the inner fence and the outer fence in the detection zone, no personnel leave, namely the situation mentioned above does not exist, the reason for outputting the abnormal signal by the inner fence is basically caused by equipment damage, and an electronic fence failure signal is output at the moment so that a manager can timely learn the situation to process.
Step S40122: if the detecting section inner and outer fences output abnormal signals, abnormal personnel leaving signals are output.
When the outside and inside fences of the detection zone output abnormal signals, the situation that people leave is indicated, namely that people are hidden in the protection zone in advance, and at the moment, abnormal people leave signals are output to identify the situation, so that management personnel can know the situation in time and process the situation.
Referring to fig. 6, if the detecting section inner and outer fences output abnormal signals, the error entering early warning method based on the electronic fence further includes:
step S500: and when the inner fence outputs an abnormal signal, acquiring the latest output pulse number and successfully receiving the pulse number.
The latest output pulse number is the number of the pulse signal output by the pulse transmitter at the time point when the inner fence outputs the abnormal signal, and the successfully received pulse number is the number of the last pulse signal received by the pulse receiver in the inner fence.
Step S501: and determining the number of interval pulses according to the latest output pulse number and the successfully received pulse number, and calculating according to the number of interval pulses and the preset pulse interval duration to determine the pulse transmitting distance.
The number of interval pulses is the number difference between the successfully received pulse number and the latest output pulse number, namely the number value of pulse signals blocked by an object, the pulse interval duration is the transmission interval duration of pulse signals corresponding to the pulse transmitter, the pulse transmission path is the distance value moved by the pulse signal which is firstly sent out in all blocked pulse signals, the pulse signals are blocked by the object, at the moment, the movement duration of the first pulse signal can be obtained by multiplying the number of interval pulses by the pulse interval duration, and the corresponding pulse transmission path can be obtained by multiplying the movement duration by the transmission speed of the pulse signals.
Step S502: and determining an internal pulse blocking point on a preset pulse loop according to the pulse transmitting path.
The pulse loop is a loop through which a pulse signal needs to move when the pulse transmitter outputs the pulse signal to the pulse receiver for receiving the pulse signal; the pulse signal transmitter can be known by simulating the pulse transmitting path on the pulse loop, so that the position point where the pulse signal is blocked, namely the internal pulse blocking point, namely the position point where an external object is located, can be known.
Step S503: and determining an external pulse blocking point when the peripheral column outputs an abnormal signal, and determining a blocking interval distance according to the internal pulse blocking point and the external pulse blocking point.
The external pulse blocking points are the position points where the object enters at the peripheral columns, and the specific determination method is consistent with the internal pulse blocking points, and will not be described herein; the blocking interval distance is a distance value between the internal pulse blocking point and the external pulse blocking point.
Step S504: and judging whether the blocking interval distance is smaller than a preset allowable interval distance.
The allowable interval distance is the maximum blocking interval distance which is set by the staff and is allowed to appear when the same object enters and moves out, and the purpose of judgment is to know whether the same object enters and moves out, namely whether the personnel enter and move out by mistake is normal.
Step S5041: if the blocking interval distance is smaller than the allowable interval distance, an error-in/out signal or an abnormal person out signal is output.
When the blocking interval distance is smaller than the allowable interval distance, the operation is indicated as the operation of the same person, and the subsequent analysis is normally carried out at the moment.
Step S5042: and outputting a demand detection alarm signal if the blocking interval distance is not smaller than the allowable interval distance.
When the blocking interval distance is not smaller than the allowable interval distance, the operation of entering and moving out is not the same object operation, at the moment, an abnormal condition exists, and a demand detection alarm signal is output so as to enable a manager to intervene in the process.
Referring to fig. 7, if the blocking interval distance is smaller than the allowable interval distance, the error entry warning method based on the electronic fence further includes:
Step S600: and acquiring a first pulse blocking point according to the abnormal signals output by the inner fence and the outer fence in the fixed zone.
The first pulse blocking point is a blocking point of the object when the abnormal signal of the outer fence exists in the fixed interval, and the determining method is consistent with the internal pulse blocking point, and is not repeated here.
Step S601: the blocking stand-off distance under the outer rail is determined from the first pulse blocking point and the outer pulse blocking point.
The blocking stand-off distance is a distance value between two position points when an object moves from the outside to the outer rail and from the inner rail to the outer rail, i.e., a distance value between a first pulse blocking point and an outer pulse blocking point.
Step S602: and judging whether the blocking separation distance is smaller than a preset allowable deviation distance.
The allowable deviation distance is the maximum blocking distance set by the staff and considered to be satisfied when the same staff enters and moves out of the operation, and the purpose of the judgment is to know whether the blocking condition of the outer fence and the inner fence is the same staff.
Step S6021: if the blocking distance is smaller than the allowable deviation distance, outputting an error input/output leaving signal.
When the blocking distance is smaller than the allowable deviation distance, the operation probability is the same person, and the error input and output signal is normally output.
Step S6022: and outputting a demand detection alarm signal if the blocking distance is not smaller than the allowable deviation distance.
When the blocking distance is not less than the allowable deviation distance, it is indicated that the person in the inner rail may have entered the protected area, and an abnormal signal of the outer rail is generated by an external partnership operation, so that a demand detection alarm signal is outputted to enable the manager to intervene in the process.
Referring to fig. 8, the error entry early warning method based on the electronic fence further includes:
step S700: and establishing a statistical interval with the width being the preset statistical duration by taking the current time point as a rear end point in a preset time axis.
The time axis is a coordinate axis formed by combining time points, the coordinate axis points to a time point which does not arrive yet from an elapsed time point, the statistical duration is a duration which is set by a worker and used for counting the false entry condition, for example, 1 year, and a statistical interval is established so as to be convenient for acquiring and analyzing data in the statistical duration.
Step S701: and acquiring each internal pulse blocking point in the statistical interval, and defining each internal pulse blocking point as a history blocking point.
The history blocking points are defined to identify internal pulse blocking points within the statistical interval for subsequent analysis.
Step S702: and determining a blocking coverage area at the historical blocking point according to the preset coverage area.
The coverage area is the range allowed by other history blocking points which are set by staff and are considered to be closer to the history blocking point, for example, 1 meter, the blocking coverage area takes the history blocking point as the midpoint, and the width of the whole range is the coverage area.
Step S703: counting is performed in the blocking coverage area according to each historical blocking point to determine the number of the interval blocking.
The number of interval blocking is the total number of history blocking points in the blocking coverage area, and can be obtained by counting the history blocking points one by one.
Step S704: and defining the blocking coverage areas with the blocking number of the intervals being larger than the preset reference blocking number as high-frequency intervals, and defining the history blocking points for determining the high-frequency intervals as high-frequency false entry points.
The minimum interval blocking quantity which is required to be met when the situation of mistaken entry of the position point is determined easily by the staff is set by the reference blocking quantity, when the interval blocking quantity is larger than the reference blocking quantity, the situation that the personnel mistakenly enter the blocking coverage area easily is indicated, and the high-frequency interval and the high-frequency mistaken entry point are defined at the moment, so that the manager can know the situation, and the manager can conveniently install monitoring equipment at the position point to further protect the safety of the area.
Referring to fig. 9, based on the same inventive concept, an embodiment of the present invention provides an electronic fence-based false entry early warning system, including:
an acquisition module for acquiring pulse transmission states of the outer rail and the inner rail, wherein the inner rail is positioned inside the outer rail;
the processing module is connected with the acquisition module and the judging module and is used for storing and processing information;
the judging module is connected with the acquisition module and the processing module and is used for judging information;
when the judging module judges that the pulse transmission state is consistent with the preset abnormal transmission state, the processing module outputs an abnormal signal, and an abnormal time point is determined according to the output time point of the abnormal signal;
After the processing module outputs an abnormal signal, a detection interval with the width being the preset detection duration is established by taking the corresponding abnormal time point as a front end point;
The judging module judges whether the outer fence outputs an abnormal signal in the detection interval;
if the judging module judges that the outer fence does not output an abnormal signal, the processing module outputs a demand detection alarm signal;
If the judging module judges that the outer fence outputs an abnormal signal, the processing module outputs a false-in and false-out signal;
The movement state analysis module is used for analyzing the movement state of the personnel according to the movement condition of the personnel from outside to inside and from inside to outside;
the waiting condition analysis module is used for analyzing and processing the waiting condition of the personnel in the electronic fence;
The rail failure determining module is used for analyzing and determining the failure condition of the electronic rail so as to improve the accuracy of false entry early warning;
the false entry position analysis module is used for determining the position point where the person enters by mistake so as to judge whether the person really leaves the protection area;
the error entry condition analysis module is used for determining specific error entry conditions according to the position point conditions of the personnel at the peripheral columns;
And the false entry condition statistics module is used for carrying out statistics processing on the situations of the position points where external personnel enter by mistake at a certain time point.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to perform all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.
Claims (6)
1. An electronic fence-based false entry early warning method is characterized by comprising the following steps:
setting an outer rail and an inner rail and acquiring pulse transmission states of the outer rail and the inner rail, wherein the inner rail is positioned inside the outer rail;
outputting an abnormal signal when the pulse transmission state is consistent with a preset abnormal transmission state, and determining an abnormal time point according to the output time point of the abnormal signal;
after the inner rail outputs an abnormal signal, a detection interval with the width being the preset detection duration is established by taking the corresponding abnormal time point as a front end point;
judging whether the outer fence outputs an abnormal signal in the detection interval;
If the outer fence does not output an abnormal signal, outputting a demand detection alarm signal;
If the peripheral column outputs an abnormal signal, outputting a false input and output signal;
if the peripheral fence outputs an abnormal signal, the error entry early warning method based on the electronic fence further comprises the following steps:
Defining an abnormal time point corresponding to an abnormal signal output by the outer fence before the inner fence as a first time point, defining an abnormal time point corresponding to an abnormal signal output by the outer fence after the inner fence as a second time point, defining an abnormal time point of the abnormal signal output by the inner fence as an occurrence time point, and defining a time point when the abnormal signal in the inner fence disappears as a disappearance time point;
Determining a first occurrence interval duration according to the first time point and the occurrence time point, and determining a second occurrence interval duration according to the second time point and the disappearance time point;
calculating a difference value according to the first occurrence interval duration and the second occurrence interval duration to determine a movement error duration;
Judging whether the movement error time length is smaller than a preset equivalent error time length or not;
if the movement error time is smaller than the same error time, outputting an error-in-out signal;
If the movement error time is not less than the same error time, outputting an abnormal departure signal;
after the occurrence time point and the disappearance time point are determined, the error entering early warning method based on the electronic fence further comprises the following steps:
determining the thinking duration of the personnel according to the occurrence time point and the disappearance time point;
Judging whether the thinking duration of the personnel is longer than the preset normal thinking duration;
If the thinking time of the personnel is longer than the normal thinking time, outputting a demand detection alarm signal;
and if the personnel thinking time is not longer than the normal thinking time, determining the movement error time.
2. The electronic fence based false entry early warning method as claimed in claim 1, wherein the internal fence outputs an abnormal signal, and the electronic fence based false entry early warning method further comprises:
After the inner rail outputs an abnormal signal, a fixed interval with the width being a preset fixed duration is established by taking a corresponding abnormal time point as a rear end point;
judging whether the outer fence outputs an abnormal signal in the fixed interval;
If the peripheral column outputs an abnormal signal, establishing a detection interval to output a demand detection alarm signal or a false entering and exiting signal;
If the outer fence does not output an abnormal signal, establishing a detection interval and judging whether the outer fence and the inner fence of the detection interval output the abnormal signal;
if no abnormal signal is output by the inner fence and the outer fence in the detection zone, outputting an electronic fence failure signal;
If the detecting section inner and outer fences output abnormal signals, abnormal personnel leaving signals are output.
3. The electronic fence-based false entry early warning method according to claim 2, wherein if the detecting section inner and outer fences output abnormal signals, the electronic fence-based false entry early warning method further comprises:
Acquiring the latest output pulse number and successfully receiving the pulse number when the inner fence outputs an abnormal signal;
determining the number of interval pulses according to the latest output pulse number and the successfully received pulse number, and calculating according to the number of interval pulses and the preset pulse interval duration to determine the pulse transmitting distance;
determining an internal pulse blocking point on a preset pulse loop according to the pulse transmitting path;
determining an external pulse blocking point when the peripheral column outputs an abnormal signal, and determining a blocking interval distance according to the internal pulse blocking point and the external pulse blocking point;
judging whether the blocking interval distance is smaller than a preset allowable interval distance or not;
If the blocking interval distance is smaller than the allowable interval distance, outputting an error-in-out signal or an abnormal person out-of-out signal;
and outputting a demand detection alarm signal if the blocking interval distance is not smaller than the allowable interval distance.
4. The electronic fence based false entry warning method of claim 3, wherein if the blocking interval is smaller than the allowable interval, the electronic fence based false entry warning method further comprises:
acquiring a first pulse blocking point according to an abnormal signal output by the inner fence and the outer fence in the fixed zone;
determining a blocking distance under the outer fence according to the first pulse blocking point and the external pulse blocking point;
Judging whether the blocking distance is smaller than a preset allowable deviation distance or not;
outputting a misentering and exiting signal if the blocking separation distance is smaller than the allowable deviation distance;
And outputting a demand detection alarm signal if the blocking distance is not smaller than the allowable deviation distance.
5. The electronic fence based false entry warning method of claim 3, further comprising:
Establishing a statistical interval with the width being the preset statistical duration in a preset time axis by taking the current time point as a rear end point;
acquiring each internal pulse blocking point in the statistical interval, and defining each internal pulse blocking point as a history blocking point;
determining a blocking coverage area at a history blocking point according to a preset coverage area;
Counting according to each history blocking point in the blocking coverage area to determine the number of the interval blocking;
and defining the blocking coverage areas with the blocking number of the intervals being larger than the preset reference blocking number as high-frequency intervals, and defining the history blocking points for determining the high-frequency intervals as high-frequency false entry points.
6. An electronic fence-based false entry early warning system, which is characterized by comprising:
an acquisition module for acquiring pulse transmission states of the outer rail and the inner rail, wherein the inner rail is positioned inside the outer rail;
the processing module is connected with the acquisition module and the judging module and is used for storing and processing information;
the judging module is connected with the acquisition module and the processing module and is used for judging information;
when the judging module judges that the pulse transmission state is consistent with the preset abnormal transmission state, the processing module outputs an abnormal signal, and an abnormal time point is determined according to the output time point of the abnormal signal;
After the processing module outputs an abnormal signal, a detection interval with the width being the preset detection duration is established by taking the corresponding abnormal time point as a front end point;
The judging module judges whether the outer fence outputs an abnormal signal in the detection interval;
if the judging module judges that the outer fence does not output an abnormal signal, the processing module outputs a demand detection alarm signal;
If the judging module judges that the outer fence outputs an abnormal signal, the processing module outputs a false-in and false-out signal;
if the peripheral fence outputs an abnormal signal, the processing module defines an abnormal time point corresponding to the abnormal signal output by the outer fence before the inner fence as a first time point, defines an abnormal time point corresponding to the abnormal signal output by the outer fence after the inner fence as a second time point, defines an abnormal time point of the abnormal signal output by the inner fence as an occurrence time point, and defines a time point when the abnormal signal in the inner fence disappears as a disappearance time point;
the processing module determines the first occurrence interval duration according to the first time point and the occurrence time point, and determines the second occurrence interval duration according to the second time point and the disappearance time point;
the processing module calculates a difference value according to the first occurrence interval duration and the second occurrence interval duration to determine a movement error duration;
The judging module judges whether the movement error time length is smaller than a preset equivalent error time length or not;
If the judging module judges that the movement error time length is smaller than the same error time length, the processing module outputs an error-in-out signal;
If the judging module judges that the moving error duration is not less than the same error duration, the processing module outputs an abnormal leaving signal;
the post-processing module determines the thinking duration of the personnel according to the occurrence time point and the vanishing time point;
the judging module judges whether the thinking time of the personnel is longer than the preset normal thinking time;
If the judging module judges that the thinking time of the personnel is longer than the normal thinking time, the processing module outputs a demand detection alarm signal;
If the judgment module judges that the thinking time of the person is not longer than the normal thinking time, the processing module determines the movement error time.
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