System and method for detecting uniqueness of coal mine entering and exiting personnel

Abstract

The invention relates to a coal mine entering and exiting personnel uniqueness detection system and method, and belongs to the field of coal mine intelligent safety monitoring. In the system, an infrared correlation module is arranged at an entrance of a well access channel and preliminarily determines the number of people entering the well access channel according to the shielded state of infrared rays; the passive card reader module and the UWB card reader module in the channel respectively read ID information of the passive tag module and the UWB positioning module in the positioning terminal, and perform positioning through UWB to obtain distance measurement information of the positioning terminal; and the iris and / or face recognition module in the channel performs biological characteristic information matching according to the ID information, and jointly confirms the uniqueness of the personnel carrying the positioning terminal by combining the number of people obtained by the infrared correlation module, the ID information obtained by the passive card reader module, the position information determined by the UWB and the identity matching result of the iris and / or face recognition module. The method is based on multiple verifications of the system, and ensures the uniqueness that the personnel entering / exiting the well carry and only carry the own positioning terminal.

Description

Technical Field

[0001] The invention belongs to the field of intelligent safety monitoring of coal mines, and relates to a uniqueness detection system and method for personnel entering and exiting a coal mine. Background Art

[0002] According to relevant regulations, workers entering coal mines should carry only one positioning card to ensure that the positioning system can accurately obtain their location. Therefore, it is necessary to conduct card uniqueness detection for relevant workers entering and leaving coal mines. Through the uniqueness detection of personnel entering and leaving the mine, the following functions can be achieved:

[0003] 1) Improve the safety management level: Through uniqueness detection, it can be ensured that every person entering the mine carries his or her own valid identification card, avoiding violations such as replacing cards and carrying multiple cards, thereby ensuring the reliability of the underground personnel positioning system and improving the safety management level of the mine.

[0004] 2) Accurately control personnel information: The unique detection system can count and analyze the information of personnel entering the mine in real time, including personnel identity, entry time, exit time, etc., to provide accurate data support for coal mine management.

[0005] 3) Prevent potential safety hazards: By detecting the working status and uniqueness of the identification card, abnormal situations can be discovered in time, such as insufficient power or expiration of the identification card, thereby preventing potential safety hazards caused by inaccurate personnel positioning.

[0006] At present, the uniqueness detection of coal mine workers going down the mine is mainly achieved by installing uniqueness monitoring devices at the entrance and exit of the mine. The uniqueness monitoring device mainly includes a positioning card reader, an iris and / or face recognition module, a mechanical entry restriction linkage module, etc. The personnel entering and exiting the mine carry an identification card and communicate with the positioning card reader to obtain the identification card ID and fault status. The iris and / or face recognition module identifies the personnel's biometrics. The device compares the identification card ID and biometrics with the registration information of the personnel to obtain whether the personnel carries and only carries one valid identification card.

[0007] However, the above scheme has the problem of poor reliability in detecting whether a person carries and only carries one valid identification card. Generally, when going to and from get off work, many people line up to pass through the uniqueness detection device, and the card reader will read the ID and other information of multiple identification cards within the communication range, resulting in errors in uniqueness judgment. Summary of the invention

[0008] In view of this, the purpose of the present invention is to provide a system and method for detecting the uniqueness of personnel entering and exiting a coal mine, so as to solve the problems of recognition accuracy and detection reliability of personnel entering and exiting a coal mine.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] A unique detection system for personnel entering and exiting a coal mine, the system comprising a server, an entry channel and an exit channel, the entry channel and the exit channel are respectively provided with an infrared counter-radiation module connected to the server, a passive card reader module, a UWB card reader module, an iris and / or face recognition module and a gate, and all personnel entering and exiting the coal mine are pre-assigned with a positioning terminal bound to their basic information;

[0011] The infrared radiation module is arranged at the entrance of the well entrance passage and / or the well exit passage, and preliminarily determines the number of people entering the well entrance passage or the well exit passage according to the state of infrared rays being blocked;

[0012] The passive card reader module is used to read the ID information of the passive tag module in the positioning terminal;

[0013] The UWB card reader module is used to read the UWB positioning module in the positioning terminal and obtain the distance information between the positioning terminal and the positioning terminal through UWB communication ranging;

[0014] The iris and / or face recognition module performs biometric information matching based on the ID information;

[0015] The server determines the uniqueness of the positioning terminal carried by the personnel entering and exiting the well by combining the number of people information determined by the infrared radiation module, the ID information read by the passive card reader module, the distance information obtained by UWB ranging, and the biometric information results of the iris and / or face recognition module.

[0016] Furthermore, the external beam module includes an infrared transmitter and an infrared receiver. The infrared transmitter transmits infrared signals, and the receiver receives the transmission signals of the transmitter. When no one passes, the receiver continues to receive the infrared signals of the transmitter; when people pass by, the receiver cannot receive the infrared signals. The number of people passing by is calculated based on the number of interruptions in the infrared receiver's reception. After completing the unique identification, the number is reset and the count is restarted.

[0017] Furthermore, the passive card reader module can sense and identify the passive tags within a set range, and communicate to obtain the ID information of the positioning terminal; the communication distance between the passive card reader module and the passive tags is controlled by setting a signal threshold.

[0018] Furthermore, the UWB reader module performs positioning and communication with the UWB positioning module, calculates the distance information of the positioning terminal, obtains the ID information of the corresponding positioning terminal of the UWB positioning module, and compares it with the ID information obtained by the passive reader module.

[0019] Furthermore, the passive card reader module and the UWB card reader module, under normal conditions, always send device scanning information respectively to search whether there is a positioning terminal within the communication range. When the positioning terminal receives the device scanning information, it replies with a device response frame with ID information.

[0020] Furthermore, the iris and / or face recognition module extracts and identifies the biometric information of the personnel entering and exiting the well, transmits the extracted feature data to the server or stores it locally, and verifies the identity of the personnel entering and exiting the well by comparing the extracted information with the stored biometric data in real time;

[0021] The iris and / or face of the personnel entering and exiting the well are authenticated in advance, and the iris and / or face recognition module extracts the biometric information as part of the basic information of the personnel entering and exiting the well, and binds and stores it with the ID of the positioning terminal.

[0022] Furthermore, each person entering and exiting the well is issued a positioning terminal with a different ID. The terminal is bound to the basic information of the person entering and exiting the well and entered into the system server or the uniqueness detection system; the passive tag and UWB positioning module of the same positioning terminal are written with the same ID information during production.

[0023] Furthermore, the positioning terminal is one of an identification card, a positioning card, an information mining lamp, an intrinsically safe watch, and a mobile phone.

[0024] The present invention also proposes a method for detecting the uniqueness of personnel entering and exiting a coal mine. The method adopts the aforementioned system for detecting the uniqueness of personnel entering and exiting a coal mine, and performs the following steps:

[0025] S1: Enter the ID information of the positioning terminal of each person entering and leaving the well into the server or uniqueness detection system to establish a preliminary identity association;

[0026] S2: The iris and / or face recognition terminal extracts the biometric information of the personnel entering and exiting the well, and stores the biometric information in a server or in the iris and / or face recognition terminal;

[0027] S3: The ID information of the positioning terminal is associated and bound with the biometric information of the personnel entering and leaving the well, as an element of the basic information database of the personnel entering and leaving the well, to ensure the uniqueness and accuracy of the basic information;

[0028] S4: The personnel entering or exiting the well prepare to go down or exit the well, and enter the well entry passage or well exit passage respectively;

[0029] S5: The infrared radiation module confirms the number of people currently entering the well entrance or exit passage according to the signal terminal frequency of the infrared radiation receiving device:

[0030] If more than one person passes by, an alarm will be sounded: "Only one person enters";

[0031] If only one person passes through, the person's identification information is transmitted to the server or passive card reader and proceeds to the next step of processing;

[0032] S6: The passive card reader module, the UWB card reader module and the iris and / or face recognition module work simultaneously, and upload the acquired number of people information, ID information, distance information and biometric information of the iris and / or face recognition module to the server for judgment, and decide whether to allow passage based on the judgment result;

[0033] S7: Generate the entry or exit record of the corresponding personnel, and generate the attendance record, and the gate of the uniqueness detection system is opened for passage.

[0034] Further, the specific judgment process of the server in step S6 is:

[0035] S61: Whether the passive card reader module reads the passive tag module. If the tag information is not read, an alarm "no positioning terminal is carried" is issued; if the tag information is read, the ID information transmitted by all the passive tags read is received, and whether the ID is unique is determined according to the received ID information. If the received ID information is not unique, an alarm "multiple positioning terminals are carried" is issued; if the ID information is confirmed to be unique, it is determined that the "one person one card" requirement is met, but it cannot be determined whether the card is the person's card;

[0036] S62: Whether the UWB card reader module reads the same ID information as the passive card reader module in the positioning terminal. If the UWB positioning module with the same ID information is not read or the positioning fails or is inaccurate, the positioning terminal is determined to be faulty and an alarm "positioning terminal abnormality" is issued; if the UWB positioning module with the same ID information is read and the positioning is successful and accurate, the next step is carried out;

[0037] S63: The iris and / or face recognition module extracts the biometric features of the person entering the channel, matches them in the registered biometric information database, and determines whether the matching degree between the biometric information with the highest matching degree and the extracted biometric information exceeds the threshold. If it does not exceed the threshold, it is determined that the person is not registered, and an alarm "person is not registered" is issued; if it exceeds the threshold, it is determined that the person is registered, and then combined with the ID information of the positioning terminal obtained by the passive card reader module and the UWB card reader module, it is determined whether the identity information corresponding to the matched biometric information is consistent with the identity information corresponding to the ID information. If the identity information of the two is inconsistent, it is determined that the positioning terminal carried by the person is not his own positioning terminal, and an alarm "carrying a positioning terminal that is not his own" is issued; if the identity information of the two is consistent, it is determined that the person meets the uniqueness requirement for entering and exiting the well.

[0038] The beneficial effects of the present invention are:

[0039] The present invention improves the accuracy and reliability of the uniqueness detection of personnel entering and leaving the coal mine: through multiple verifications of infrared counter-radiation module, passive card reader module, UWB card reader module, iris and / or face recognition module, the uniqueness of personnel identity and the correctness of the positioning terminal are ensured. Through the control of the unique gate, only personnel verified by the system can enter or leave the mine, effectively preventing the safety hazards caused by illegal intrusion and misoperation. The system can automatically record the time of personnel entering and leaving the mine, which is convenient for attendance management and statistical analysis, and improves management efficiency.

[0040] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0042] Figure 1 It is a structural diagram of the uniqueness detection system;

[0043] Figure 2 It is a schematic diagram of the detection principle of the uniqueness detection system;

[0044] Figure 3 This is the processing logic diagram of the uniqueness detection method. DETAILED DESCRIPTION

[0045] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0046] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0047] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0048] See also Figure 1 to Figure 3 , which is a uniqueness detection system and method for personnel entering and exiting a coal mine.

[0049] Example

[0050] This embodiment first proposes a uniqueness detection system for personnel entering and exiting a coal mine. The uniqueness detection system includes a server, an entry channel and an exit channel. Figure 1 The schematic diagram of the uniqueness detection system structure in the well entry channel or well exit channel is shown, and the well entry channel and the well exit channel are respectively provided with corresponding infrared radiation modules, passive card reader modules, UWB card reader modules, iris and / or face recognition modules and gate machines, and all underground personnel are pre-assigned with positioning terminals bound to personnel information; Figure 2 The schematic diagram of the detection principle of the uniqueness detection system shown in the figure shows that the infrared counter-radiation module is arranged at the entrance of the well entrance channel or the well exit channel, and preliminarily determines the number of people entering the well entrance channel or the well exit channel according to the state of infrared ray being blocked; the passive card reader module and the UWB card reader module in the channel respectively read the ID information of the passive tag module and the UWB positioning module in the positioning terminal, and obtain the ranging information of the positioning terminal through UWB positioning; the iris and / or face recognition module in the channel matches the biometric information according to the ID information, and jointly confirms its uniqueness by combining the number information obtained by the infrared counter-radiation module, the ID information obtained by the passive card reader module, the location information determined by UWB and the identity matching results of the iris and / or face recognition module.

[0051] The infrared beam module includes an infrared transmitting and receiving part. In the unobstructed state, the receiving part receives and senses the infrared light of the transmitting part. The infrared beam device includes an infrared transmitter and a receiver. The beam device is installed at the entrance of the uniqueness detection system. The infrared transmitter transmits infrared signals, and the receiver receives the transmitting signals of the transmitter. When no one passes, the receiver can always receive the infrared signals of the transmitter; when people pass by, the receiver cannot receive infrared signals. Therefore, the number of interruptions of the infrared receiver is calculated as the number of people passing by. The system determines the number of people in the identification area by the number of tag IDs read by the infrared beam device and the passive card reader. If the infrared beam device and the passive card reader simultaneously identify that there is only one person in the detection area, it is considered that there is only one positioning terminal in the uniqueness detection area. Through the previous detection results of the person carrying his own positioning terminal and the detection results of the person carrying his own positioning terminal, it is determined whether the person carrying the terminal in the uniqueness detection area only carries his own positioning terminal.

[0052] Each staff member entering and exiting the well is issued a positioning terminal with a different ID. The terminal and personnel information are bound and entered into the system server or the uniqueness detection device to ensure that when the personnel passes through the uniqueness detection system, the binding information between the positioning terminal and the personnel can be retrieved in real time.

[0053] The positioning terminals carried by personnel include identification cards, positioning cards, information mining lamps, intrinsically safe watches, mobile phones and other forms. They have passive tags and UWB positioning modules inside. The passive tags and UWB positioning modules of the same terminal device are written with the same ID when the equipment is produced. As the ID of the terminal device, it can communicate with the upstream device to transmit its ID information.

[0054] The passive card reader module can sense and identify passive tags within a range of 1 to 2 meters, and can communicate to obtain information such as ID. Passive tags can communicate with passive high-frequency card readers in the uniqueness detection system. The communication distance is controlled at 1 to 2 meters by setting the signal threshold. Within the communication range, the ID information is uploaded to the high-frequency passive card reader in the uniqueness detection system.

[0055] The UWB reader has UWB positioning and communication functions, calculates the distance information of the positioning terminal, obtains the ID information of the corresponding positioning terminal of the UWB positioning module, and compares it with the ID information obtained by the passive reader module. The UWB reader can locate and communicate with the UWB positioning module around 100m around to obtain the ID and other information of the tag. The UWB positioning module can locate and communicate with the UWB reader module in the uniqueness detection system. Through positioning tests, both can obtain the terminal's positioning function abnormal status, ID, battery power and other local information. The passive high-frequency reader and UWB reader module in the uniqueness detection system will always send device scanning information in normal state to search for whether there is a positioning terminal within the communication range. When the positioning terminal receives the device scanning information, it will reply with a device response frame with ID and other information.

[0056] The iris and / or face recognition module extracts and identifies the biometric information of the personnel, and can transmit the extracted feature data to the server or store it locally. The identity of the personnel can be verified by comparing the extracted information with the stored biometric data in real time. As part of the uniqueness detection device, the iris and / or face recognition module can realize the function of extracting and storing the biometric information of the personnel's iris and 2D / 3D face. Before the uniqueness detection system is operated, the iris and / or face of each staff member going down the mine needs to be authenticated. The iris and / or face recognition module extracts the biometric information as part of the basic information of the personnel, and binds and stores it with the ID of the positioning terminal.

[0057] The mechanical structure mainly realizes the physical protection of personnel access. Personnel carry positioning terminals (identification cards, information mining lamps, etc.) containing passive tags and UWB positioning functions. The ID in the passive tag is consistent with the UWB ID.

[0058] This embodiment also provides a method for detecting the uniqueness of personnel entering and exiting a coal mine, which is based on the aforementioned uniqueness detection system for personnel entering and exiting a coal mine and implements the following process:

[0059] When a staff member enters / exits the well, he / she first passes through the infrared radiation device. The infrared radiation receiver determines whether someone has entered the unique detection device for unique identification based on the infrared state, and transmits the personnel entry information to the high-frequency card reader of the unique detection system; the high-frequency card reader determines whether the "one person, one card" requirement is met based on the infrared reception information and the passive tag information of the positioning terminal obtained by itself. If only one positioning terminal information is read and the infrared device only performs one infrared interruption, it is considered that the "one person, one card" requirement is met, but at this time it cannot be determined whether the terminal carried is the person himself / herself, and further judgment is required based on iris and / or face recognition information; if multiple ID positioning terminal information is read, it is considered that the person entering / exiting the well "carries multiple terminals".

[0060] The UWB positioning module can locate and communicate with the UWB reader module in the uniqueness detection system. Through positioning testing, the two can obtain local information such as the abnormal status of the terminal's positioning function, ID, and battery power.

[0061] At the same time as the above detection and judgment, the iris and / or face recognition module extracts biometric information in real time, and the extracted biometric information is matched with the stored biometric data. When the matching rate exceeds the threshold set by the system, the system identifies and prompts the identity information of the person passing by. The identified person's identity information is integrated with the "one person, one card" judgment result of the previous step to determine whether the terminal carried is the person's terminal. When the identified person's identity information and device ID information are consistent with the information stored in the system, the system considers that the requirements for the person entering / exiting the well to carry and only carry his own terminal are met, the unique gate is opened to release, and the information is entered into the work attendance system; when the identified person's identity information and device ID information are inconsistent with the information stored in the system, the system considers that the terminal carried by the person entering / exiting the well is not his own terminal, the unique gate will not release it, and the "wrong terminal" prompt will be given through screen display, sound prompt, etc.

[0062] Specifically, if Figure 3 As shown, it includes the following processes:

[0063] 1) Enter each worker’s terminal ID into the server or uniqueness detection system to establish a preliminary identity association.

[0064] 2) The iris and / or face recognition terminal extracts the biometric features of each worker and stores these features in the server or terminal;

[0065] 3) Associate the terminal ID with the person’s biometrics as an element of each person’s information database to ensure the uniqueness and accuracy of the information;

[0066] 4) Workers prepare to go down or out of the well and enter the well entrance passage or well exit passage respectively;

[0067] 5) The infrared radiation module confirms the number of people currently entering the well entrance or exit passage according to the signal terminal frequency of the infrared radiation receiving device:

[0068] If more than one person passes by, an alarm will be sounded: "Only one person enters";

[0069] If only one person passes through, the person's identification information is transmitted to the server or passive card reader and proceeds to the next step of processing;

[0070] 6) The passive card reader module, UWB card reader module and iris and / or face recognition module work simultaneously and process data according to the following logic:

[0071] (a) Whether the passive card reader module reads the passive tag. If no tag information is read, an alarm is issued that "no positioning terminal is carried". If tag information is read, the ID information transmitted by all the passive tags read is received, and the ID is determined to be unique based on the received ID information. If the received ID information is not unique, an alarm is issued that "multiple positioning terminals are carried". If the ID information is confirmed to be unique, it is determined that the "one person, one card" requirement is met.

[0072] (b) Whether the UWB card reader module reads the UWB positioning module in the positioning terminal with the same ID information as that obtained by the passive card reader module, and whether accurate positioning can be performed; if the UWB positioning module with the same ID information is not read or the positioning fails or is inaccurate, the positioning terminal is determined to be faulty and an alarm "positioning terminal abnormality" is issued; if the UWB positioning module with the same ID information is read and the positioning is successful and accurate, the next step is carried out;

[0073] (c) The iris and / or face recognition module extracts the biometric features of the person entering the channel, matches them in the registered biometric information database, and determines whether the matching degree between the biometric information with the highest matching degree and the extracted biometric information exceeds a threshold. If it does not exceed the threshold, it is determined that the person has not been registered, and an alarm "personnel not registered" is issued; if it exceeds the threshold, it is determined that the person has been registered, and then combined with the ID information of the positioning terminal obtained by the passive card reader module and the UWB card reader module, it is determined whether the identity information corresponding to the matched biometric information is consistent with the identity information corresponding to the ID information. If the identity information of the two is inconsistent, it is determined that the positioning terminal carried by the person is not his own positioning terminal, and an alarm "carrying a positioning terminal that is not his own" is issued; if the identity information of the two is consistent, it is determined that the person meets the uniqueness requirement for entering and exiting the well;

[0074] 7) Generate the entry or exit record of the corresponding personnel, and generate attendance records, and the gate of the unique detection system is opened for passage.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A uniqueness detection system for personnel entering and leaving a coal mine, characterized by: The system includes a server, a well entry channel and a well exit channel, wherein the well entry channel and the well exit channel are respectively provided with an infrared beaming module, a passive card reader module, a UWB card reader module, an iris and / or face recognition module and a gate connected to the server, and all personnel entering and exiting the well are pre-assigned with a positioning terminal bound to their basic information; The infrared radiation module is arranged at the entrance of the well entrance passage and / or the well exit passage, and preliminarily determines the number of people entering the well entrance passage or the well exit passage according to the state of infrared rays being blocked; The passive card reader module is used to read the ID information of the passive tag module in the positioning terminal; The UWB card reader module is used to read the UWB positioning module in the positioning terminal and obtain the distance information between the positioning terminal and the positioning terminal through UWB communication ranging; The iris and / or face recognition module performs biometric information matching based on the ID information; The server determines the uniqueness of the positioning terminal carried by the personnel entering and exiting the well by combining the number of people information determined by the infrared radiation module, the ID information read by the passive card reader module, the distance information obtained by UWB ranging, and the biometric information results of the iris and / or face recognition module.

2. A coal mine entry and exit personnel uniqueness detection system according to claim 1, characterized in that: The external beam module includes an infrared transmitter and an infrared receiver. The infrared transmitter transmits an infrared signal, and the receiver receives the transmission signal of the transmitter. When no one passes, the receiver continues to receive the infrared signal of the transmitter; when people pass by, the receiver cannot receive the infrared signal. The number of people passing by is calculated based on the number of interruptions in the infrared receiver's reception. After completing the unique identification, the number is reset and counted again.

3. A coal mine entry and exit personnel uniqueness detection system according to claim 1, characterized in that: The passive card reader module can sense and identify the passive tags within a set range, and communicate to obtain the ID information of the positioning terminal; the communication distance between the passive card reader module and the passive tag is controlled by setting a signal threshold.

4. A coal mine entry and exit personnel uniqueness detection system according to claim 3, characterized in that: The UWB reader module performs positioning and communication with the UWB positioning module, calculates the distance measurement information of the positioning terminal, and obtains the ID information of the corresponding positioning terminal of the UWB positioning module, and compares it with the ID information obtained by the passive reader module.

5. A coal mine entry and exit personnel uniqueness detection system according to claim 4, characterized in that: The passive card reader module and the UWB card reader module, under normal conditions, respectively send device scanning information to search for a positioning terminal within the communication range. When the positioning terminal receives the device scanning information, it replies with a device response frame with ID information.

6. A coal mine entry and exit personnel uniqueness detection system according to claim 1, characterized in that: The iris and / or face recognition module extracts and identifies the biometric information of the personnel entering and leaving the well, transmits the extracted feature data to the server or stores it locally, and verifies the identity of the personnel entering and leaving the well by comparing the extracted information with the stored biometric data in real time; The iris and / or face of the personnel entering and exiting the well are authenticated in advance, and the iris and / or face recognition module extracts the biometric information as part of the basic information of the personnel entering and exiting the well, and binds and stores it with the ID of the positioning terminal.

7. A coal mine entry and exit personnel uniqueness detection system according to claim 1, characterized in that: Each person entering and exiting the well is issued a positioning terminal with a different ID. The terminal is bound to the basic information of the person entering and exiting the well and entered into the system server or the uniqueness detection system; the passive tag and UWB positioning module of the same positioning terminal are written with the same ID information during production.

8. A coal mine entry and exit personnel uniqueness detection system according to claim 1, characterized in that: The positioning terminal is one of an identification card, a positioning card, an information mining lamp, an intrinsically safe watch, and a mobile phone.

9. A method for detecting the uniqueness of personnel entering and leaving a coal mine, characterized in that: The method adopts a coal mine entry and exit personnel uniqueness detection system as described in any one of claims 1 to 8, and performs the following steps: S1: Enter the ID information of the positioning terminal of each person entering and leaving the well into the server or uniqueness detection system to establish a preliminary identity association; S2: The iris and / or face recognition terminal extracts the biometric information of the personnel entering and exiting the well, and stores the biometric information in a server or in the iris and / or face recognition terminal; S3: The ID information of the positioning terminal is associated and bound with the biometric information of the personnel entering and leaving the well, as an element of the basic information database of the personnel entering and leaving the well, to ensure the uniqueness and accuracy of the basic information; S4: The personnel entering or exiting the well prepare to go down or exit the well, and enter the well entry passage or well exit passage respectively; S5: The infrared radiation module confirms the number of people currently entering the well entrance or exit passage according to the signal terminal frequency of the infrared radiation receiving device: If more than one person passes by, an alarm will be sounded: "Only one person enters"; If only one person passes through, the person's identification information is transmitted to the server or passive card reader and proceeds to the next step of processing; S6: The passive card reader module, the UWB card reader module and the iris and / or face recognition module work simultaneously, and upload the acquired number of people information, ID information, distance information and biometric information of the iris and / or face recognition module to the server for judgment, and decide whether to allow passage based on the judgment result; S7: Generate the entry or exit record of the corresponding personnel, and generate the attendance record, and the gate of the uniqueness detection system is opened for passage.

10. A method for detecting the uniqueness of personnel entering and exiting a coal mine according to claim 9, characterized in that: The specific judgment process of the server in step S6 is: S61: Check whether the passive card reader module reads the passive tag module. If the tag information is not read, an alarm "no positioning terminal is carried" is issued; if the tag information is read, the ID information transmitted by all the passive tags read is received, and it is determined whether the ID is unique according to the received ID information. If the received ID information is not unique, an alarm "multiple positioning terminals are carried" is issued; if the ID information is confirmed to be unique, it is determined that the "one person one card" requirement is met, but it cannot be determined whether the card is the person's card; S62: Whether the UWB card reader module reads the same ID information as the passive card reader module in the positioning terminal. If the UWB positioning module with the same ID information is not read or the positioning fails or is inaccurate, the positioning terminal is determined to be faulty and an alarm "abnormal positioning terminal" is issued; if the UWB positioning module with the same ID information is read and the positioning is successful and accurate, the next step is carried out; S63: The iris and / or face recognition module extracts the biometric features of the person entering the channel, matches them in the registered biometric information database, and determines whether the matching degree between the biometric information with the highest matching degree and the extracted biometric information exceeds the threshold. If it does not exceed the threshold, it is determined that the person is not registered, and an alarm "person is not registered" is issued; if it exceeds the threshold, it is determined that the person is registered, and then combined with the ID information of the positioning terminal obtained by the passive card reader module and the UWB card reader module, it is determined whether the identity information corresponding to the matched biometric information is consistent with the identity information corresponding to the ID information. If the identity information of the two is inconsistent, it is determined that the positioning terminal carried by the person is not his own positioning terminal, and an alarm "carrying a positioning terminal that is not his own" is issued; if the identity information of the two is consistent, it is determined that the person meets the uniqueness requirement for entering and exiting the well.

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