A coal mine underground rush limiting personnel management system

Abstract

The present application relates to the technical field of downhole management, and particularly discloses a coal mine downhole anti-collision personnel management system, which is used to solve the problem of weak prevention ability of personnel management in coal mine downhole accidents; the present application sets the positioning base station installed at the entrance of the impact area as the first positioning base station, the positioning base station installed at the end of the impact area as the second positioning base station, and the positioning base station installed at the exit of the impact area as the third positioning base station by acquiring the positioning information of the personnel, sets the distance path between the first positioning base station and the second positioning base station as the first path, sets the direction of the first positioning base station towards the second positioning base station in the first path as the first positive direction, and sets the direction of the second positioning base station towards the first positioning base station in the first path as the first negative direction, compares the positioning information of adjacent time points to determine the movement direction of the personnel in the first path, realizes dynamic monitoring, and ensures instant grasp of the personnel flow direction and state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of downhole management, and more particularly, to a coal mine downhole anti-collision and personnel limiting management system. BACKGROUND

[0002] In the safety management of coal mines, when the balance of rock mass is destroyed by mining, the accumulated stress may be suddenly released, forming a violent shock wave that impacts surrounding rock, support structures and equipment. With the continuous progress of coal mine production technology and the gradual improvement of intelligent management level, the coal mine downhole anti-collision and personnel limiting management system as an important means to ensure safety in coal mines has been applied in some coal mines. However, in actual operation, the existing coal mine downhole anti-collision and personnel limiting management system still has many deficiencies in anti-collision and personnel limiting, which restricts its actual effect in ensuring personnel safety and preventing accidents. The existing literature (Fan Chunqi. Design and research of coal mine impact dangerous area personnel violation behavior identification system based on edge intelligence [D]. China University of Mining and Technology, 2023. DOI: 10.27623 / d.cnki.gzkyu.2023.002084) designs a set of impact dangerous area personnel violation behavior identification system, which can realize the identification of static and dynamic violation behaviors of personnel in the impact dangerous area. Although it can realize the preliminary positioning of personnel, it is difficult to reflect the dynamic distribution of personnel in real time and accurately due to weak light and complex and variable environment in the mine, so the overstaffing and understaffing status cannot be detected in time, thereby reducing the prevention ability of the system for anti-collision accidents. Moreover, in terms of linkage control, the linkage management of the existing system for each key passage in the mine is still relatively single. Most anti-collision and personnel limiting management systems mainly rely on simple gate control and sound and light alarm to realize personnel access control, but in actual application, when a sudden situation occurs in the mine or the system detects abnormal data, the start of the linkage response mechanism is often not fast and sensitive enough. In order to solve the above problems, the present application provides a technical solution. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the present application provides a coal mine downhole anti-collision and personnel limiting management system, which solves the problem of weak prevention ability of the coal mine downhole anti-collision and personnel limiting for anti-collision accidents by real-time acquisition of personnel position and motion state, thereby solving the problems raised in the above background technology.

[0004] To achieve the above object, the present application provides the following technical scheme:

[0005] The application discloses a kind of coal mine underground with anti-collision limit personnel management system, including several positioning base station, personnel identification management module and linkage control module;Positioning base station is used to obtain the positioning information of personnel;Positioning information includes personnel quantity, moving distance and moving speed;Personnel identification management module is used to accurately locate personnel position, determine whether the number of personnel in stamping area meets the number of limited personnel;Set the positioning base station installed at the entrance of impact area as the first positioning base station, the positioning base station installed at the end point of impact area as the second positioning base station, the positioning base station installed at the exit of impact area as the third positioning base station, the distance path between the first positioning base station and the second positioning base station is set as the first path, the distance path between the second positioning base station and the third positioning base station is set as the second path;The positioning information between adjacent time points in all positioning base stations in the first path is obtained respectively;The direction of the first positioning base station towards the second positioning base station in the first path is regarded as the first positive direction, and the direction of the second positioning base station towards the first positioning base station in the first path is regarded as the first negative direction, and the motion direction of personnel in the first path is determined by comparing the positioning information of adjacent time points;Linkage control module is used to control the entrance gate and the exit gate according to the output signal of personnel identification management module.

[0006] As a further scheme of the application, the positioning base station comprises two infrared sensors, and the two infrared sensors form a cross-detection area by setting a fixed included angle on the same horizontal line to detect personnel.

[0007] It should be noted that the fixed included angle can be 160°, 140°, 120° and 100°, but if the fixed included angle of one positioning base station is set to 160°, the fixed included angles of all other base stations need to be set to 160°.

[0008] It should be noted that the determination of the number of personnel: when a single person passes through the cross area, each infrared sensor will generate a typical peak value in the signal; when two people pass through side by side or slightly staggered, each infrared sensor will detect two separate peak values or multiple sharp peaks in one peak value; when two individuals pass through the detection area, each infrared sensor will collect the change of infrared signal, and a composite signal will be generated in the overlapping area, and by processing these signals, it can be determined whether one person or multiple people pass through the positioning base station at the same time. Specifically, by threshold analysis, if two signals appear at different time differences and amplitude differences, it can be judged that there are two people, in addition, by using peak detection and signal segmentation algorithm, and by correlating the output of the two sensors, the signal triggering sequence can be judged, which can help determine the number of people.

[0009] It should be noted that the number of personnel determined in the positioning information is only the number of personnel obtained at the same positioning base station, and the purpose is to solve the problem that it is difficult to detect when people walk side by side.

[0010] As a further scheme of the present application, the comparison of the positioning information of adjacent time points to determine the moving direction of the personnel specifically comprises:

[0011] When the positioning base station of the adjacent time points detects that the user is along the first positive direction, it is recorded as "1", and at this time it is determined that the personnel direction is towards the second positioning base station;

[0012] When the positioning base station of the adjacent time points detects that the user is along the first negative direction, it is recorded as "0", and at this time it is determined that the personnel direction is towards the first positioning base station;

[0013] When the positioning base station of the adjacent time points detects multiple personnel, at this time the number of "1" or "0" is recorded according to the number of personnel;

[0014] For the case that the personnel is "1" at the first adjacent time point and "0" at the second adjacent time point, it is recorded as "0", and at this time the personnel first goes towards the second positioning base station and then turns back to go towards the first positioning base station;

[0015] For the case that the personnel is "0" at the first adjacent time point and "1" at the second adjacent time point, it is recorded as "1", and at this time the personnel first goes towards the first positioning base station and then turns back to go towards the second positioning base station;

[0016] The number of "1" and "0" appearing in the adjacent time points is the number of personnel in the first path.

[0017] As a further scheme of the present application, the personnel identification management module is further used to acquire the positioning information between adjacent time points in all positioning base stations in the second path respectively; the direction of the second positioning base station towards the third positioning base station in the second path is regarded as the second positive direction, the direction of the third positioning base station towards the second positioning base station in the second path is regarded as the second negative direction, and the comparison of the positioning information of adjacent time points is used to determine the moving direction of the personnel in the second path.

[0018] As a further scheme of the present application, the comparison of the positioning information of adjacent time points to determine the moving direction of the personnel in the second path specifically comprises:

[0019] When the positioning base station of the adjacent time points detects that the user is along the second positive direction, it is recorded as "0", and at this time it is determined that the personnel direction is towards the third positioning base station;

[0020] When the positioning base station of the adjacent time points detects that the user is along the second negative direction, it is recorded as "1", and at this time it is determined that the personnel direction is towards the second positioning base station;

[0021] When the positioning base station of the adjacent time points detects multiple personnel, at this time the number of "1" or "0" is recorded according to the number of personnel;

[0022] For the case that the personnel is "1" at the adjacent time point first and "0" later, it is recorded as "0", at this time, the personnel first goes to the direction of the second positioning base station, and then turns back to go to the direction of the third positioning base station;

[0023] For the case that the personnel is "0" at the adjacent time point first and "1" later, it is recorded as "1", at this time, the personnel first goes out to the direction of the third positioning base station, and then turns back to go in to the direction of the second positioning base station;

[0024] The number of "1" and "0" appearing in the adjacent time points is the number of personnel in the second path.

[0025] As a further scheme of the present application, the personnel identification management module further comprises: when the first positioning base station monitors that the limited number of personnel enters, a pre-warning is triggered, and a signal for closing the entrance gate of the impact area is sent, the first number of personnel monitored by the third positioning base station at this time is obtained, the limited number of personnel minus the first number of personnel is the second number of personnel in the impact area, the sum of the number of personnel in the first path and the number of personnel in the second path is the third number of personnel, and the second number of personnel and the third number of personnel are compared. If the second number of personnel and the third number of personnel are the same, the personnel in the stamping area at this time meet the limited number of personnel standard, and a signal for closing the exit gate is sent; if the second number of personnel and the third number of personnel are not the same, the personnel in the stamping area at this time do not meet the limited number of personnel standard, and a signal for opening the exit gate and a signal for opening the entrance gate are sent.

[0026] The technical effect and advantages of the coal mine underground anti-impact limited personnel management system of the present application are as follows: by obtaining the positioning information of the personnel, the positioning base station installed at the entrance of the impact area is set as the first positioning base station, the positioning base station installed at the terminal point of the impact area is set as the second positioning base station, and the positioning base station installed at the exit of the impact area is set as the third positioning base station. The distance path between the first positioning base station and the second positioning base station is set as the first path, the direction of the first positioning base station towards the second positioning base station in the first path is set as the first positive direction, and the direction of the second positioning base station towards the first positioning base station in the first path is set as the first negative direction. This is helpful for accurately judging whether the personnel moves in the positive direction or the negative direction, so as to more accurately identify abnormal or reverse behaviors. The movement direction of the personnel in the first path is determined by comparing the positioning information of the adjacent time points, dynamic monitoring is realized, and the personnel flow direction and state are ensured to be immediately grasped. The present application is helpful for timely discovering reverse or retention phenomena, early warning potential risks, and improving the prevention ability of accidents. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The coal mine underground anti-impact limited personnel management system provided by the present application is shown in the figure;

[0028] Figure 2 The personnel distribution and flow analysis schematic diagram provided by the present application is shown in the figure;

[0029] Figure 3 The 24-hour personnel flow trend line graph provided by the present application;

[0030] Figure 4 The first path flow line graph provided by the present application;

[0031] Figure 5 The second path flow line graph provided by the present application. DETAILED DESCRIPTION

[0032] The technical solutions in the present application will be described in detail below with reference to the drawings in the present application. Obviously, the described technical solutions are only a part of the present application, not all. Based on the technical solutions in the present application, all other technical solutions obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0033] Example 1

[0034] When the impact area entrance and the impact area exit are not the same place:

[0035] A coal mine underground anti-collision personnel management system, comprising a plurality of positioning base stations, a personnel identification management module and a linkage control module; the plurality of positioning base stations are connected with the personnel identification management module, and the personnel identification management module is connected with the linkage control module;

[0036] The positioning base station is used for acquiring the positioning information of the personnel; the positioning information includes the number of personnel, the moving distance and the moving speed;

[0037] The personnel identification management module is used for accurately positioning the position of the personnel and determining whether the number of personnel in the impact area meets the limited number of personnel;

[0038] The linkage control module is used for controlling the entrance gate and the exit gate according to the output signal of the personnel identification management module.

[0039] The positioning base station is installed at the impact area entrance, the impact area terminal and the impact area exit; the positioning base stations are installed equidistantly between the impact area entrance and the impact area terminal, the impact area terminal and the impact area exit; the positioning base station comprises two infrared sensors, and the two infrared sensors form a cross detection area through setting a fixed included angle on the same horizontal line to detect the personnel.

[0040] The positioning base station installed at the entrance of the impact area is set as the first positioning base station, the positioning base station installed at the end of the impact area is set as the second positioning base station, and the positioning base station installed at the exit of the impact area is set as the third positioning base station. The distance path between the first positioning base station and the second positioning base station is set as the first path, and the distance path between the second positioning base station and the third positioning base station is set as the second path.

[0041] It should be noted that the set fixed included angle can be 160°, 140°, 120°, and 100°, but if one positioning base station is set to have a fixed included angle of 160°, the fixed included angles of all other base stations need to be set to 160°.

[0042] It should be noted that the determination of the number of people: for a single person, when passing through the intersection area, each infrared sensor will generate a typical peak value in the signal; and when two people pass through side by side or slightly staggered, each infrared sensor will detect two separate peak values or multiple sharp peaks within one peak value; when two individuals pass through the detection area, each infrared sensor will collect infrared signal changes, and the overlapping area will generate a composite signal. By processing these signals, it can be determined whether one person or multiple people pass through the positioning base station at the same time. Specifically, through threshold analysis, if two signals appear at different time differences and amplitude differences, it can be judged that there are two people. In addition, by using peak detection and signal segmentation algorithm, and combining the correlation detection of the outputs of two sensors, the signal triggering sequence can be judged to help determine the number of people.

[0043] It should be noted that the number of people determined in the positioning information is only the number of people obtained at the same positioning base station, and the purpose is to solve the problem that it is difficult to detect when people walk side by side.

[0044] The positioning information between adjacent time points of all positioning base stations in the first path is obtained respectively; the direction of the first positioning base station in the first path towards the second positioning base station is set as the first positive direction, and the direction of the second positioning base station in the first path towards the first positioning base station is set as the first negative direction. The motion direction of the personnel in the first path is determined by comparing the positioning information of adjacent time points.

[0045] When the positioning base station of adjacent time points detects that the user is along the first positive direction, it is recorded as “1”, and at this time it is determined that the personnel direction is towards the second positioning base station.

[0046] When the positioning base station of adjacent time points detects that the user is along the first negative direction, it is recorded as “0”, and at this time it is determined that the personnel direction is towards the first positioning base station.

[0047] When the positioning base station of adjacent time points detects multiple personnel at the same time, the number of “1” or “0” is recorded according to the number of personnel.

[0048] For the case that the personnel is first "1" and then "0" at adjacent time points, it is recorded as "0", at this time the personnel first goes to the direction of the second positioning base station, and then returns to the direction of the first positioning base station.

[0049] For the case that the personnel is first "0" and then "1" at adjacent time points, it is recorded as "1", at this time the personnel first goes to the direction of the third positioning base station, and then returns to the direction of the second positioning base station.

[0050] The number of "1" and "0" appearing in the adjacent time points is the number of personnel in the first path.

[0051] The positioning information between adjacent time points in all positioning base stations in the second path is obtained respectively; the direction of the second positioning base station to the third positioning base station in the second path is taken as the secondary positive direction, the direction of the third positioning base station to the second positioning base station in the second path is taken as the secondary negative direction, and the movement direction of the personnel in the second path is determined by comparing the positioning information of adjacent time points.

[0052] When the positioning base station at adjacent time points detects that the user is along the secondary positive direction, it is recorded as "0", at this time it is determined that the direction of the personnel is to go out in the direction of the third positioning base station.

[0053] When the positioning base station at adjacent time points detects that the user is along the secondary negative direction, it is recorded as "1", at this time it is determined that the direction of the personnel is to go in the direction of the second positioning base station.

[0054] When the positioning base station at adjacent time points detects multiple personnel, the number of "1" or "0" is recorded according to the number of personnel.

[0055] For the case that the personnel is first "1" and then "0" at adjacent time points, it is recorded as "0", at this time the personnel first goes to the direction of the second positioning base station, and then returns to the direction of the third positioning base station.

[0056] For the case that the personnel is first "0" and then "1" at adjacent time points, it is recorded as "1", at this time the personnel first goes to the direction of the third positioning base station, and then returns to the direction of the second positioning base station.

[0057] The number of "1" and "0" appearing in the adjacent time points is the number of personnel in the second path.

[0058] When the first positioning base station monitors the entering limited number of personnel, a pre-warning will be triggered, and a signal of closing the entrance gate of the impact area will be sent, the first number of personnel monitored by the third positioning base station at this time is obtained, the second number of personnel in the impact area is the limited number of personnel minus the first number of personnel, and the sum of the number of personnel in the first path and the number of personnel in the second path is the third number of personnel, and the second number of personnel and the third number of personnel are compared, if the second number of personnel and the third number of personnel are the same, the personnel in the impact area at this time meet the limited number of personnel standard, and a signal of closing the exit gate is sent; if the second number of personnel and the third number of personnel are not the same, the personnel in the impact area at this time do not meet the limited number of personnel standard, and a signal of opening the exit gate and a signal of opening the entrance gate are sent.

[0059] Figure 1 The coal mine underground anti-impact limited personnel management system provided by the present application shows the basic structure and working principle of the coal mine underground anti-impact limited personnel management system, and personnel positioning and monitoring are carried out through three key nodes of the entrance base station, the terminal base station and the exit base station, so as to ensure the safety management in the impact area.

[0060] Figure 2 The personnel distribution and flow analysis diagram provided by the present application shows the visualized data of personnel distribution, flow monitoring and dynamic trend analysis of the coal mine underground anti-impact limited personnel management system, which aims to track the personnel flow in each area of the underground impact area in real time, and ensure the efficiency of safety production management.

[0061] Figure 3 The 24-hour personnel flow trend line chart provided by the present application reflects the personnel flow in the coal mine underground impact area in the past 24 hours, and shows the entering number (blue curve) and the leaving number (green curve) respectively, at 18:00, the entering number is 7 and the leaving number is 6, which indicates that the number of personnel in the impact area is still increasing in this time period, and the personnel flow fluctuates greatly during 09:00-18:00, and the entering amount and the leaving amount are basically kept synchronous.

[0062] Figure 4 The first path flow line chart provided by the present application reflects the change of the flow on the first path (from the entrance base station to the terminal base station), the vertical axis is the real-time number of personnel, and the horizontal axis is the time (14:00-14:30), at 14:25, the flow on the first path is 4 people, the flow fluctuates in this time period, the peak value is close to 6 people, and the minimum is only 2 people, which is helpful to analyze whether the number of personnel entering the impact area meets the limited personnel standard and prevent over-limit situation.

[0063] Figure 5The second path pedestrian flow line graph provided by this invention shows the changes in pedestrian flow on the second path (from the terminal base station to the exit base station). The vertical axis represents the real-time number of people, and the horizontal axis represents time (14:00-14:30). At 14:25, the pedestrian flow on the second path is 2 people, which is lower than the 4 people on the first path. This indicates that some people are still in the impact zone, which helps to assess the efficiency of personnel evacuation in the impact zone and detect whether there are any stranded people.

[0064] Example 2

[0065] The personnel limit standard for the impact zone in a certain coal mine is: a maximum of 5 people are allowed to be in the impact zone at the same time. The system has three positioning base stations installed at the entrance, end, and exit of the impact zone. The first positioning base station (entrance) is used to detect personnel entering the impact zone; the second positioning base station (end) is located in the middle of the impact zone and is used to record the positioning information of personnel when passing through the middle section; the third positioning base station (exit) is used to detect personnel leaving the impact zone.

[0066] Each positioning base station uses two infrared sensors. They are set at a fixed angle on the same horizontal line (selectable as 160°, 140°, 120° or 100°, but if one of them is 160°, then all of them are 160°) to form an intersecting detection area. This ensures that each individual heat source can be accurately identified when people walk side by side, thereby determining the number of people passing by.

[0067] When the first positioning base station detects that the cumulative number of people entering the impact zone has reached the preset entry limit (for example, when five independent "entry signals" are detected at the entrance), the system triggers an early warning and sends a signal to the linkage control module to close the entrance gate of the impact zone to prevent more people from entering.

[0068] In the first path (from entry to destination), assume that the following location data at adjacent time points are collected within a certain period:

[0069] Time point A: Three "1" signals were detected (indicating that three people are moving towards the finish line);

[0070] Time point B: One "0" signal was detected (indicating that one person turned back towards the entrance).

[0071] Overall statistics: Number of people in the first route = 3 - 1 = 2 people (net entry);

[0072] The counting method for "1" and "0" here is as follows: if "1" appears first and then "0", it is recorded as net "entry"; if "0" appears first and then "1", it is recorded as net "exit". The data for each time period is accumulated and subtracted according to the algorithm to obtain the actual number of people entering in the first path.

[0073] In the second path (end point to exit), the collected data can be: time point C: 4 "0" signals are detected (representing 4 people moving towards the exit); time point D: 1 "1" signal is detected (representing 1 person turning back to the second positioning base station); comprehensive statistics: net outflow of personnel in the second path = 4 - 1 = 3 people.

[0074] Initial number of internal personnel: when the entrance is closed, the number of internal personnel can be calculated as follows: the first number of personnel, i.e. the number of personnel detected by the first positioning base station at the closed entrance (for example, 5 people are detected).

[0075] The net entering amount (for example, 2 people) counted from the first path is added to the net outflow amount (for example, 3 people) counted from the second path to obtain the third number of personnel (i.e. an estimated value of the number of personnel in the impact zone).

[0076] The system compares the number of personnel obtained at the entrance with the data counted from the two paths: if the number of outflow personnel in the second path matches the data of the personnel entering the first path (for example, both indicate that there are 5 people inside), the system determines that the number of personnel in the impact zone meets the limit standard, and the linkage control module then sends a signal to close the exit gate to prevent the occurrence of personnel overloading inside.

[0077] If the data do not match (for example, the entrance detects 5 people, but the two paths only show 4 or 6 people), it is determined that the number of internal personnel does not meet the standard, and the system sends a signal to open the exit gate, and at the same time reopens the entrance gate, so as to carry out personnel evacuation or supplementary entry, and ensure that the final number of internal personnel is controlled within a safe range.

[0078] By setting three positioning base stations and two detection paths, integrating the data at the entrance, end point and exit, using the signal peak value analysis and direction determination algorithm of the infrared sensor, the number and movement direction of personnel in the underground impact zone are accurately monitored. According to the detection information, the system can automatically determine whether the number of internal personnel is overloading, and timely open and close the entrance and exit gates through the linkage control module, so as to effectively prevent accidents caused by personnel overloading and improve the level of underground safety management.

[0079] Example 3

[0080] When the entrance of the impact zone and the exit of the impact zone are the same place:

[0081] The positioning base stations are installed at the entrance of the impact zone and the end point of the impact zone, and the positioning base stations are installed equidistantly between the entrance of the impact zone and the end point of the impact zone; the positioning base station installed at the entrance of the impact zone is set as the first positioning base station, the positioning base station installed at the end point of the impact zone is set as the second positioning base station, and the distance path between the first positioning base station and the second positioning base station is set as the first path;

[0082] Obtain the positioning information between adjacent time points of all positioning base stations in the first path respectively; take the direction of the first positioning base station in the first path towards the second positioning base station as the first positive direction, and take the direction of the second positioning base station in the first path towards the first positioning base station as the first negative direction, and determine the movement direction of the person in the first path by comparing the positioning information of adjacent time points;

[0083] When the positioning base station of adjacent time points detects that the user is along the first positive direction, record it as "1", and at this time, it is determined that the person is moving towards the second positioning base station;

[0084] When the positioning base station of adjacent time points detects that the user is along the first negative direction, record it as "0", and at this time, it is determined that the person is moving towards the first positioning base station;

[0085] When the positioning base station of adjacent time points detects multiple persons, record the number of "1" or "0" according to the number of persons at this time;

[0086] For the case that the person is "1" at the first adjacent time point and "0" at the second adjacent time point, record it as "0", and at this time, the person first moves towards the second positioning base station and then returns to move towards the first positioning base station;

[0087] For the case that the person is "0" at the first adjacent time point and "1" at the second adjacent time point, record it as "1", and at this time, the person first moves towards the first positioning base station and then returns to move towards the second positioning base station;

[0088] The number of "1" and "0" appearing in the adjacent time points is the number of persons in the first path.

[0089] When the first positioning base station monitors the entering number of limited persons, a pre-warning will be triggered, and a signal for closing the entrance gate of the impact area will be sent. The number of persons in the first path is extracted, and the number of persons in the first path is compared with the limited number of persons. If the number of persons in the first path is the same as the limited number of persons, the number of persons in the impact area meets the limited number of persons standard at this time, and a signal for closing the exit gate is sent. If the number of persons in the first path is not the same as the limited number of persons, the number of persons in the impact area does not meet the limited number of persons standard at this time, and a signal for opening the exit gate and a signal for opening the entrance gate are sent.

[0090] Embodiment 4

[0091] In a certain coal mine, the entrance and exit of the impact area are located at the same place. In order to ensure that the number of personnel in the area is strictly controlled within the safety standard (for example, limited to a maximum of 4 people), the system installs a number of positioning base stations between the entrance of the impact area and the end of the impact area. Each positioning base station uses two infrared sensors to form an intersection detection area by setting a fixed included angle (such as 160°, 140°, 120°, or 100°, but if one positioning base station uses 160°, all are set to 160°) on the same horizontal line, thereby accurately determining the heat signal when personnel pass through.

[0092] The positioning base stations between the entrance and the end of the impact area form a path. The direction of the first positioning base station (entrance) towards the second positioning base station (end) is set as "one positive direction" and is recorded as "1", indicating that the personnel are entering the impact area in the positive direction. The direction of the second positioning base station towards the first positioning base station is set as "one negative direction" and is recorded as "0", indicating that the personnel are leaving the impact area in the negative direction.

[0093] Each positioning base station uses two infrared sensors to collect infrared signals in the intersection detection area.

[0094] When a single person passes through, both sensors will produce a typical peak value. When two people walk side by side or slightly staggered, the sensors will detect two separate peak values or multiple sharp peaks within a single peak value. Through threshold judgment, peak detection, and signal segmentation algorithms, the number of simultaneous passers-by can be determined.

[0095] If the user signal changes from "1" (towards the end) to "0" (towards the entrance) in the detection data of adjacent time points, it indicates that the personnel entered first and then returned, and is recorded as "0".

[0096] Conversely, if it changes from "0" to "1" first, it is recorded as "1", indicating that the personnel left first and then re-entered.

[0097] The number of "1" and "0" appearing in adjacent time points is counted, and the actual number of personnel in the first path is finally obtained.

[0098] Assuming that the number of personnel is set to 4 in a certain period. When the first positioning base station detects that the cumulative number of people entering reaches 4, the system triggers a warning and sends a signal to the linkage control module to close the impact area entrance gate, preventing more personnel from entering, while continuously monitoring the detection data of each positioning base station in the first path.

[0099] The first positioning base station (entrance) continuously detects the entering signals, and through a signal processing algorithm, 4 entering signals are obtained. At adjacent time points, part of the personnel signals are "1", indicating that the personnel move towards the inside of the impact area (the direction of the end point). For example, at a certain time period, the first positioning base station shows that a total of 4 signals of "1" appear continuously, but one of them changes from "1" to "0", indicating that the personnel turns back and leaves.

[0100] Suppose that after the cumulative statistics, the number of "1" is 4 and the number of "0" is 0, then the actual number of personnel entering the impact area is 4, which meets the limit personnel standard. If the number of "1" is 4 and the number of "0" is 1, then the net entering number is 3, which does not meet the expectation, at this time the system will judge that the number of personnel in the impact area is insufficient, and send a signal to open the entrance and exit gates, so as to facilitate personnel adjustment or evacuation.

[0101] Once the first positioning base station detects the entering signal of 4 personnel, the system immediately sends a warning and closes the entrance gate to prevent more personnel from entering. According to the number of personnel accumulated on the first path compared with the limit personnel number: if the statistical number is the same as the limit personnel number (4 personnel), it indicates that the internal personnel meet the requirements, and the system automatically sends a signal to close the exit gate to prevent internal personnel from leaking or causing secondary aggregation due to personnel turbulence; if the statistical number does not meet the limit personnel number (for example, the actual number of personnel is less than or greater than 4), the system will send a signal to open the exit gate and reopen the entrance gate, prompting the on-site management personnel to adjust the personnel flow, and ensuring that the number of internal personnel returns to the safe range.

[0102] The embodiment of the present application sets the positioning base station installed at the entrance of the impact area as the first positioning base station, the positioning base station installed at the end point of the impact area as the second positioning base station, and the positioning base station installed at the exit of the impact area as the third positioning base station, sets the distance path between the first positioning base station and the second positioning base station as the first path, sets the direction of the first positioning base station towards the second positioning base station in the first path as the first positive direction, and sets the direction of the second positioning base station towards the first positioning base station in the first path as the first negative direction, which helps to accurately judge whether the personnel move in the positive direction or the negative direction, so as to more accurately identify abnormal or reverse behaviors, compare the positioning information at adjacent time points to determine the movement direction of the personnel in the first path, realize dynamic monitoring, and ensure that the personnel flow and state are grasped in time; the present application helps to discover the reverse or stagnation phenomenon in time, gives early warning of potential risks, and improves the prevention ability of accidents.

[0103] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0104] Finally: the above only for the preferred scheme of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A coal mine underground rush-limiting personnel management system, comprising a plurality of positioning base stations, a personnel identification management module and a linkage control module; characterized in that, The positioning base station is used to obtain the positioning information of the personnel; the positioning information includes the number of personnel, the moving distance and the moving speed; the personnel identification management module is used to accurately locate the position of the personnel and determine whether the number of personnel in the stamping area meets the limited number of personnel; the positioning base station installed at the entrance of the stamping area is set as the first positioning base station, the positioning base station installed at the end point of the stamping area is set as the second positioning base station, and the positioning base station installed at the exit of the stamping area is set as the third positioning base station; the distance path between the first positioning base station and the second positioning base station is set as the first path, and the distance path between the second positioning base station and the third positioning base station is set as the second path; the positioning information between adjacent time points in all positioning base stations in the first path is obtained respectively; the direction of the first positioning base station in the first path towards the second positioning base station is set as the first positive direction, and the direction of the second positioning base station in the first path towards the first positioning base station is set as the first negative direction, and the moving direction of the personnel in the first path is determined by comparing the positioning information of adjacent time points. The positioning base station includes two infrared sensors, and the two infrared sensors form a cross detection area by setting a fixed included angle on the same horizontal line to detect personnel; when the first positioning base station monitors that the limited number of personnel enters, a pre-warning is triggered, a signal for closing the entrance gate of the stamping area is sent, the first number of personnel monitored by the third positioning base station at this time is obtained, the second number of personnel in the stamping area is the limited number of personnel minus the first number of personnel, the third number of personnel is the sum of the number of personnel in the first path and the number of personnel in the second path, and the second number of personnel and the third number of personnel are compared; if the second number of personnel is the same as the third number of personnel, the number of personnel in the stamping area meets the limited number of personnel standard at this time, and a signal for closing the exit gate is sent; if the second number of personnel is not the same as the third number of personnel, the number of personnel in the stamping area does not meet the limited number of personnel standard at this time, and a signal for opening the exit gate and a signal for opening the entrance gate are sent; the linkage control module is used to control the entrance gate and the exit gate according to the output signal of the personnel identification management module.

2. The rush control and personnel management system for use in a coal mine according to claim 1, characterized in that, The personnel moving direction is determined by comparing the positioning information of adjacent time points, and specifically includes: When the positioning base station of adjacent time points detects that the user is along the first positive direction, it is recorded as "1", and it is determined that the personnel direction is towards the second positioning base station; When the positioning base station of adjacent time points detects that the user is along the first negative direction, it is recorded as "0", and it is determined that the personnel direction is towards the first positioning base station; When the positioning base station of adjacent time points detects multiple personnel, the number of "1" or "0" is recorded according to the number of personnel; For the case that the personnel is "1" at the first adjacent time point and "0" at the second adjacent time point, it is recorded as "0", and it is determined that the personnel first goes towards the second positioning base station and then returns towards the first positioning base station; For the case that the personnel is "0" at the first adjacent time point and "1" at the second adjacent time point, it is recorded as "1", and it is determined that the personnel first goes towards the first positioning base station and then returns towards the second positioning base station; The number of "1" and "0" appearing in the adjacent time points is obtained, which is the number of personnel in the first path.

3. The coal mine underground rush limiting and personnel management system according to claim 1, characterized in that, Obtaining positioning information between adjacent time points in all positioning base stations in the second path respectively; taking the direction of the second positioning base station towards the third positioning base station in the second path as the secondary positive direction, and taking the direction of the third positioning base station towards the second positioning base station in the second path as the secondary negative direction, and determining the motion direction of the person in the second path by comparing the positioning information of the adjacent time points.

4. The rush control and personnel management system for use in a coal mine according to claim 3, characterized in that, The specific method of determining the motion direction of the person in the second path by comparing the positioning information of the adjacent time points comprises: When the positioning base station of the adjacent time points detects that the user is along the secondary positive direction, it is recorded as "0", and at this time, it is determined that the direction of the person is towards the direction of the third positioning base station; When the positioning base station of the adjacent time points detects that the user is along the secondary negative direction, it is recorded as "1", and at this time, it is determined that the direction of the person is towards the direction of the second positioning base station; When the positioning base station of the adjacent time points detects multiple persons, the number of "1" or "0" is recorded according to the number of persons; For the case that the person is "1" at the first adjacent time point and "0" at the second adjacent time point, it is recorded as "0", and at this time, the person first goes towards the direction of the second positioning base station and then turns back towards the direction of the third positioning base station; For the case that the person is "0" at the first adjacent time point and "1" at the second adjacent time point, it is recorded as "1", and at this time, the person first goes towards the direction of the third positioning base station and then turns back towards the direction of the second positioning base station; The number of "1" and "0" appearing in the adjacent time points is the number of persons in the second path.

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