An automatic positioning and identification system and method for tunnel segment stacking

Abstract

This invention discloses an automatic positioning and identification system and method for tunnel segment stacking, including a human-computer interaction system, an information processing module, a database, a three-dimensional coordinate system, a pressure sensor, a handheld PDA, a card-type UHF chip, a split-type UHF reader / writer, a warning device, a guidance device, and a display device. This invention has low environmental requirements, requires minimal operator intervention, and the system can automatically position and identify segments. It uses an UHF reader / writer on a fixture to automatically identify the card-type UHF chip on the segment, and then uses the pressure sensor to calculate the dynamic storage and retrieval status of the segment in the three-dimensional coordinate system. It can obtain the precise location of segments within a unit stacking yard by inputting the segment number and type; it has statistical functions, such as information on the quantity, specifications, and type of segments in the stacking yard; it has report generation functions, capable of generating daily, monthly, and annual reports; it has historical data query capabilities, such as segment delivery time and quantity information; and it can provide basic data for platform use.

Description

Technical Field

[0001] This invention belongs to the field of positioning and identification technology, specifically relating to an automatic positioning and identification system and method for tunnel segment stacking. Background Technology

[0002] Precast tunnel segment storage yards are the main storage locations for urban subway tunnel segments, and are crucial for key aspects such as segment storage, hoisting, and transportation. The layout of the storage yard directly affects the operational efficiency of the precast tunnel segment plant. Currently, due to the large number of tunnel segments produced by each manufacturer, the layout of the segment storage yards is generally quite chaotic. Excess segments can only be piled up in empty spaces, making it impossible to use systematic coding for accurate location and identification of the segments. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic positioning and identification system and method for tunnel segment stacking, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic positioning and identification system for tunnel segment stacking, comprising a human-computer interaction system, an information processing module, a database, a three-dimensional coordinate system, a pressure sensor, a handheld PDA, a card-type UHF chip, a split-type UHF reader / writer, a warning device, a guidance device, and a display device;

[0005] The three-dimensional coordinate system divides the storage yard into sections according to the storage location of the tunnel segments. Each section is divided into sections according to the X-axis and Y-axis in the planar direction: X1……Xn, Y1……Yn, and into sections according to the Z-axis in the spatial height direction: Z1……Zn.

[0006] The pressure sensor is installed at the center of the plane coordinates of the tunnel segment stacking location; the coded identifier of the pressure sensor corresponds one-to-one with XnYn in the partition plane direction; the pressure sensor is connected to the information processing module.

[0007] The warning device is used to warn of three types of abnormal states; the light of the warning device has three colors, corresponding to system component offline abnormal feedback, system component working abnormal feedback, and component stacking height exceeding limit abnormal feedback; the warning device is connected to the information processing module.

[0008] The guiding device is used to indicate the specific area where tunnel segments are stored. The guiding device consists of a yard zoning map, an indicator light matrix, and a controller. The yard zoning map serves as the base of the guiding device, and the indicator lights are installed at the corresponding points. The controller is connected to the information processing module, receives instructions from the information processing module, and then controls the indicator lights on the guiding device to flash.

[0009] The display device is used to show a dynamic overview, anomaly feedback, and real-time dynamics of each zone of the yard;

[0010] The information processing module connects to the database and the human-computer interaction system, and is also connected to pressure sensors, warning devices, guidance devices, display devices, handheld PDAs, and split-type UHF readers via communication links. The information processing module monitors changes in the pressure sensors in real time, calculates changes in the three-dimensional coordinate system, and stores the change records in the database. It also monitors the system components' operating status in real time; if offline, it instructs the warning device to issue a warning and stores the warning record in the database. Furthermore, it monitors the operating status of system components in real time; if abnormal, it instructs the warning device to issue a warning and stores the warning record in the database. The information processing module also detects whether the pressure sensor exceeds its pressure limit; if abnormal, it instructs the warning device to issue a warning and stores the warning record in the database. It listens to query commands from the human-computer interaction system in real time, controls the guidance device to respond, and provides point-to-point guidance. The information processing module performs real-time calculations of dynamic overviews, abnormal feedback, and real-time dynamics for each zone, and controls the display device to display plaintext information. Finally, the information processing module collects chip information from the split-type UHF reader in real time, combines it with pressure sensor changes to determine entry and exit actions, and stores entry and exit records in the database.

[0011] The human-computer interaction system is used to initialize the basic data of the overall system, query warning records, entry and exit records, and summarize the number of entry and exit.

[0012] The card-type ultra-high frequency chip is installed on the inner arc side of the tube segment to identify the finished tube segment.

[0013] The handheld PDA is used for identifying and reading the code of card-type UHF chips and associating them with the chip archives for chip product identification.

[0014] The split-type UHF reader consists of four parts: a UHF circularly polarized 9dBi antenna, a high-performance UHF electronic tag fixed reader, a communication module, and a patch sensor. The antenna feed line is directly connected to the reader and then connected to the information processing module through the communication module. The antenna is mounted on the tunnel segment clamp. The patch sensor is used to identify stress changes and trigger the reader to automatically read the card-type UHF chip attached to the tunnel segment.

[0015] The database is used to receive, store, and process the following information: three-dimensional coordinate system information; pressure sensor encoding information; project information; correspondence between segment number, size specifications, burial depth, and weight; segment file information; correspondence between weight and pressure; real-time acquisition and recording by pressure sensors; real-time acquisition and recording by split-type UHF readers; handheld PDA identification records; early warning records; and segment entry and exit records.

[0016] Preferably, the display device consists of a control card, an adapter board, and an LED unit board. The control card receives instructions from the information processing module, which are then transmitted by the adapter board to control the LEDs on the LED unit board, forming complete plaintext information. The display device is connected to the information processing module.

[0017] Preferably, the handheld PDA consists of an ultra-high frequency reader / writer, a wireless communication module, and a data processing unit, and is connected to the information processing module.

[0018] Preferably, the handheld PDA is used for marking the card-type UHF chip onto the inner arc surface of the tube;

[0019] The split-type ultra-high frequency reader is used to read stress changes in the fixture, trigger the reader, and automatically read the inner arc-side card-type ultra-high frequency chip of the tunnel segment;

[0020] The information processing module detects the pressure value of the pressure sensor and the chip information transmitted by the split-type ultra-high frequency reader in real time, and performs automatic identification, processing and calculation of entry and exit of each zone of the storage yard, determines the changes in the three-dimensional coordinate system, and stores the changes in the three-dimensional coordinate system into the database.

[0021] The information processing module monitors in real time the offline anomaly feedback of system components, the abnormal operation feedback of system components, and the abnormal feedback of excessive stacking height of components, and instructs the alarm device to issue an audible and visual warning.

[0022] The information processing module controls the indicator light matrix on the guidance device according to the dynamics of the yard. A red light indicates that the yard is full, and a green light indicates that the tunnel segments can be placed.

[0023] The information processing module transmits the query command from the human-computer interaction system, and then controls the indicator light on the guidance device to flash for segment location;

[0024] The information processing module calculates and summarizes the dynamic overview, anomaly feedback, and real-time dynamics of each zone of the storage yard, and controls the display device to display the data in plain text.

[0025] A method for identifying tunnel segment stacking in an automatic positioning system includes the following steps:

[0026] a) Using the three-dimensional coordinate system, the storage yard is divided into sections according to the storage location of the tunnel segments. Each section is divided into sections X1……Xn, Y1……Yn along the X and Y axes in the planar direction, and Z1……Zn along the Z axis in the spatial height direction. The specific location of the tunnel segments can be determined by Xn, Yn, and Zn.

[0027] b) The pressure sensor is installed at the center of the plane coordinates of the tunnel segment stacking location; the coded identifier of the pressure sensor corresponds one-to-one with XnYn in the partition plane direction;

[0028] c) Through the human-computer interaction system, establish basic information of the project and pressure sensor over-limit parameters; based on the project, establish and store the correspondence between segment number, size specifications, burial depth and weight in the database; establish and store the correspondence between weight and pressure value in the database; establish segment files, including unique segment code, project information, segment number, size specifications, burial depth, exit ring identification, grouting pipe identification, and polypropylene fiber identification, and store the file information in the database;

[0029] d) Select the tube segment file using the handheld PDA, and simultaneously identify, read, and bind the card-type UHF chip. Then, install the bound card-type UHF chip on the inner arc surface of the tube segment for tube segment finished product identification.

[0030] e) The split-type UHF reader identifies stress changes in the segment clamps, triggers the reader, and automatically reads the card-type UHF chip attached to the tunnel segment.

[0031] f) The chip information of the split-type UHF reader is obtained through the information processing module, the chip file is matched, and the relevant information is stored in the database, waiting for the next step of calculation;

[0032] g) Through the information processing module, the pressure value change of the pressure sensor is detected in real time, and the pressure value and weight value are matched by algorithm and data cleaned to eliminate pressure value abnormalities caused by the lifting motion.

[0033] h) The information processing module issues a warning of excessive component stacking height based on the pressure sensor's over-limit parameters and stores the warning record in the database.

[0034] i) The information processing module matches the segment number, size specification, burial depth and weight according to the change of pressure value (e.g., pressure increase is an infeed action, and vice versa is an outfeed action, and stores the source detection record of pressure value, weight value, partition number and infeed action type into the database), and waits for the next step of calculation;

[0035] j) Through the information processing module, combined with chip information and source detection records, determine the changes in the three-dimensional coordinate system and the chip information, and store the entry and exit records into the database;

[0036] k) The information processing module detects the heartbeat of system components in real time. If the components are offline, the warning device is instructed to issue an early warning and the warning record is stored in the database.

[0037] l) The information processing module monitors the operating status of system components in real time. If an abnormality is detected, the warning device is instructed to issue a warning, and the warning record is stored in the database.

[0038] m) Through the information processing module, based on the dynamics of the stockyard, control the indicator light matrix on the guiding device. A red light indicates that the stockyard is full, and a green light indicates that the pipe segments can be placed.

[0039] n) The information processing module listens to the query commands of the human-computer interaction system in real time, controls the guidance device to respond and provide location guidance;

[0040] o) The information processing module performs real-time calculations of the dynamic overview, anomaly feedback, and real-time dynamics of each partition, and controls the display device to display plaintext information.

[0041] The technical effects and advantages of this invention are as follows:

[0042] 1. This positioning and identification system has low environmental requirements, requires little operator assistance, and can automatically locate and identify targets.

[0043] 2. This system uses an ultra-high frequency reader on the fixture to automatically identify the card-type ultra-high frequency chip on the tube segment, and then calculates the dynamic access status of the tube segment in the three-dimensional coordinate system through the sensing of the pressure sensor.

[0044] 3. It can obtain the precise location of tunnel segments within a unit's storage yard by inputting the segment number and type.

[0045] 4. This positioning and identification system has statistical functions, such as information on the quantity, specifications, and type of pipe segments in the yard; it can generate daily, monthly, and annual reports; it has historical data query functions, such as the shipment time and quantity information of pipe segments; and it can provide basic data for platform use. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the three-dimensional modeling of the present invention;

[0047] Figure 2 A schematic diagram of the position of the tunnel segments on a plane coordinate system.

[0048] Figure 3 Schematic diagram of pressure sensor installation location

[0049] Figure 4 Schematic diagram of stacking layer calculation principle

[0050] Figure 5 This diagram illustrates the binding relationship between the tunnel segments and the three-dimensional coordinate system.

[0051] Figure 6 This is a system flowchart of the present invention. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] like Figures 1-6 This invention illustrates a specific embodiment of an automatic positioning and identification system and method for tunnel segment stacking according to the present invention:

[0054] It includes a human-computer interaction system, an information processing module, a database, a three-dimensional coordinate system, a pressure sensor, a handheld PDA, a card-type UHF chip, a split UHF reader / writer, a warning device, a guidance device, and a display device;

[0055] The three-dimensional coordinate system divides the storage yard into sections according to the storage location of the tunnel segments. Each section is divided into sections according to the X-axis and Y-axis in the planar direction: X1……Xn, Y1……Yn, and into sections according to the Z-axis in the spatial height direction: Z1……Zn.

[0056] The pressure sensor is installed at the center of the plane coordinates of the tunnel segment stacking location; the coded identifier of the pressure sensor corresponds one-to-one with XnYn in the partition plane direction; the pressure sensor is connected to the information processing module.

[0057] The warning device is used to warn of three types of abnormal states; the light of the warning device has three colors, corresponding to system component offline abnormal feedback, system component working abnormal feedback, and component stacking height exceeding limit abnormal feedback; the warning device is connected to the information processing module.

[0058] The guiding device is used to indicate the specific area where tunnel segments are stored. The guiding device consists of a yard zoning map, an indicator light matrix, and a controller. The yard zoning map serves as the base of the guiding device, and the indicator lights are installed at the corresponding points. The indicator lights use two colors: red and green. A red light indicates that the area is full, and a green light indicates that more segments can be placed. The controller is connected to an information processing module and receives instructions from the information processing module, thereby controlling the flashing of the indicator lights on the guiding device.

[0059] The display device is used to show a dynamic overview, anomaly feedback, and real-time dynamics of each zone of the yard;

[0060] The information processing module connects to a database and a human-machine interface system, and is also connected to pressure sensors, warning devices, guidance devices, display devices, handheld PDAs, and split-type UHF readers / writers via communication links. The information processing module monitors changes in the pressure sensors in real time, calculates changes in the three-dimensional coordinate system, and stores these changes in the database. Based on the dynamics of the stockyard, the information processing module controls the indicator light matrix on the guidance devices; a red light indicates the stockyard is full, and a green light indicates that more segments can be placed. The information processing module monitors the system components' activity in real time; if any component is offline, it instructs the warning device to issue a warning and stores the warning record in the database. The information processing module also monitors the operation of the system components in real time. The system monitors the status of the pressure sensor in real time. If an abnormality is detected, the warning device is instructed to issue a warning, and the warning record is stored in the database. The information processing module continuously monitors the pressure sensor for over-limit pressure readings. If an abnormality is detected, the warning device is instructed to issue a warning, and the warning record is stored in the database. The information processing module also listens for query commands from the human-machine interaction system in real time, controls the guidance device to respond, and provides point guidance. The information processing module performs real-time calculations of dynamic overviews, abnormal feedback, and real-time dynamics of each zone, controls the display device to display plaintext information, and collects chip information from the split-type UHF reader in real time. Combined with changes in pressure values ​​from the pressure sensor, the module determines entry and exit actions and stores entry and exit records in the database.

[0061] The human-computer interaction system is used to initialize the basic data of the overall system, query warning records, entry and exit records, and summarize the number of entry and exit.

[0062] The card-type ultra-high frequency chip has a strong adhesive backing. After the tube is demolded and flipped in the production workshop, it is pasted onto the inner arc side of the tube for marking the finished tube.

[0063] The handheld PDA is used for identifying and reading the code of the card-type UHF chip and associating it with the tube sheet file for identification of the finished tube sheet; the display device consists of a control card, an adapter board, and an LED unit board, wherein the control card receives instructions from the information processing module, and then the adapter board transmits the instructions and controls the LED lights on the LED unit board to form complete plaintext information; the display device is connected to the information processing module.

[0064] The split-type UHF reader consists of four parts: a UHF circularly polarized 9dBi antenna, a high-performance UHF electronic tag fixed reader, a communication module, and a patch sensor. The antenna feed line is directly connected to the reader and then connected to the information processing module through the communication module. The antenna is mounted on the tunnel segment clamp. The patch sensor is used to identify stress changes and trigger the reader to automatically read the card-type UHF chip attached to the tunnel segment.

[0065] The database is used to receive, store, and process the following information: three-dimensional coordinate system information; pressure sensor encoding information; project information; correspondence between segment number, size specifications, burial depth, and weight; segment file information; correspondence between weight and pressure; real-time acquisition and recording by pressure sensors; real-time acquisition and recording by split-type UHF readers; handheld PDA identification records; early warning records and segment entry and exit records;

[0066] The handheld PDA consists of an UHF reader / writer, a wireless communication module, and a data processing unit, and is connected to the information processing module; the handheld PDA is used to attach card-type UHF chips to the inner arc surface of the tube for marking.

[0067] The split-type ultra-high frequency reader is used to read stress changes in the fixture, trigger the reader, and automatically read the inner arc-side card-type ultra-high frequency chip of the tunnel segment;

[0068] The information processing module detects the pressure value of the pressure sensor and the chip information transmitted by the split-type ultra-high frequency reader in real time, and performs automatic identification, processing and calculation of entry and exit of each zone of the storage yard, determines the changes in the three-dimensional coordinate system, and stores the changes in the three-dimensional coordinate system into the database.

[0069] The information processing module monitors in real time the offline anomaly feedback of system components, the abnormal operation feedback of system components, and the abnormal feedback of excessive stacking height of components, and instructs the alarm device to issue an audible and visual warning.

[0070] The information processing module controls the indicator light matrix on the guidance device according to the dynamics of the yard. A red light indicates that the yard is full, and a green light indicates that the tunnel segments can be placed.

[0071] The information processing module transmits the query command from the human-computer interaction system, and then controls the indicator light on the guidance device to flash for segment location;

[0072] The information processing module calculates and summarizes the dynamic overview, anomaly feedback, and real-time dynamics of each zone of the storage yard, and controls the display device to display the data in plain text.

[0073] A method for identifying tunnel segment stacking in an automatic positioning system includes the following steps:

[0074] a) Using the three-dimensional coordinate system, the storage yard is divided into sections according to the storage location of the tunnel segments. Each section is divided into sections X1……Xn, Y1……Yn along the X and Y axes in the planar direction, and Z1……Zn along the Z axis in the spatial height direction. The specific location of the tunnel segments can be determined by Xn, Yn, and Zn.

[0075] b) The pressure sensor is installed at the center of the plane coordinates of the tunnel segment stacking location; the coded identifier of the pressure sensor corresponds one-to-one with XnYn in the partition plane direction;

[0076] c) Through the human-computer interaction system, establish basic information of the project and pressure sensor over-limit parameters; based on the project, establish and store the correspondence between segment number, size specifications, burial depth and weight in the database; establish and store the correspondence between weight and pressure value in the database; establish segment files, including unique segment code, project information, segment number, size specifications, burial depth, exit ring identification, grouting pipe identification, and polypropylene fiber identification, and store the file information in the database;

[0077] d) Select the tube segment file using the handheld PDA, and simultaneously identify, read, and bind the card-type UHF chip. Then, install the bound card-type UHF chip on the inner arc surface of the tube segment for tube segment finished product identification.

[0078] e) The split-type UHF reader identifies stress changes in the segment clamps, triggers the reader, and automatically reads the card-type UHF chip attached to the tunnel segment.

[0079] f) The chip information of the split-type UHF reader is obtained through the information processing module, the chip file is matched, and the relevant information is stored in the database, waiting for the next step of calculation;

[0080] g) Through the information processing module, the pressure value change of the pressure sensor is detected in real time, and the pressure value and weight value are matched by algorithm and data cleaned to eliminate pressure value abnormalities caused by the lifting motion.

[0081] h) The information processing module issues a warning of excessive component stacking height based on the pressure sensor's over-limit parameters and stores the warning record in the database.

[0082] i) The information processing module matches the segment number, size specification, burial depth and weight according to the change of pressure value (e.g., pressure increase indicates infeeding action, and vice versa, indicates outfeeding action), and stores the source detection record of pressure value, weight value, partition number and infeeding action type into the database, waiting for the next step of calculation;

[0083] j) Through the information processing module, combined with chip information and source detection records, determine the changes in the three-dimensional coordinate system and the chip information, and store the entry and exit records into the database;

[0084] k) The information processing module detects the heartbeat of system components in real time. If the components are offline, the warning device is instructed to issue an early warning and the warning record is stored in the database.

[0085] l) The information processing module monitors the operating status of system components in real time. If an abnormality is detected, it instructs the warning device to issue a warning and stores the warning record in the database.

[0086] m) The information processing module controls the indicator light matrix on the guiding device according to the dynamics of the stockyard. A red light indicates that the stockyard is full, and a green light indicates that the pipe segments can be placed.

[0087] n) The information processing module listens to the query commands of the human-computer interaction system in real time, controls the guidance device to respond and provide location guidance;

[0088] o) The information processing module performs real-time calculations of the dynamic overview, anomaly feedback, and real-time dynamics of each partition, and controls the display device to display plaintext information.

[0089] This invention maps all segment data to their coordinate positions, and connects them to a database via sensors. All segment data is automatically entered into the database according to the segment's coordinate position. In the yard guidance device, a red light indicates the yard is full, and a green light indicates that more segments can be placed. When querying for segments, the segment model is entered, and the segment's placement position is displayed on the screen. The placement position (Xn, Yn, Zn) is indicated by flashing green position lights. The system has a report generation function, which can statistically analyze data such as the number of segments shipped and remaining, facilitating data calculation and output. The data can be printed out for confirmation.

[0090] Operating steps: The system marks the pipe segments on the production line in the workshop. In the stockyard, it automatically identifies the card-type UHF chips on the pipe segments by using an UHF reader installed on the fixture. Combined with the pressure value change of the pressure sensor, it judges the entry and exit actions and stores the entry and exit records into the database.

[0091] The applicant further declares that while the above embodiments illustrate the implementation method and apparatus structure of the present invention, the present invention is not limited to the above-described embodiments, meaning that the present invention must rely on the above methods and structures to be implemented. Those skilled in the art should understand that any improvements to the present invention, equivalent substitutions for the selected implementation methods, additions to steps, and selections of specific methods all fall within the protection and disclosure scope of the present invention.

[0092] This invention is not limited to the above-described embodiments. All methods that employ similar structures and approaches to achieve the objectives of this invention are within the scope of protection of this invention.

Claims

1. An automatic positioning and identification system for tunnel segment stacking, characterized in that: It includes a human-computer interaction system, an information processing module, a database, a three-dimensional coordinate system, a pressure sensor, a handheld PDA, a card-type UHF chip, a split UHF reader / writer, a warning device, a guidance device, and a display device; The three-dimensional coordinate system divides the storage yard into sections according to the storage location of the tunnel segments. Each section is divided into sections according to the X-axis and Y-axis in the planar direction: X1……Xn, Y1……Yn, and into sections according to the Z-axis in the spatial height direction: Z1……Zn. The pressure sensor is installed at the center of the plane coordinates of the tunnel segment stacking location; the coded identifier of the pressure sensor corresponds one-to-one with XnYn in the partition plane direction; the pressure sensor is connected to the information processing module. The warning device is used to warn of three types of abnormal states; the light of the warning device has three colors, corresponding to system component offline abnormal feedback, system component working abnormal feedback, and component stacking height exceeding limit abnormal feedback; the warning device is connected to the information processing module. The guiding device is used to indicate the specific area where tunnel segments are stored. The guiding device consists of a yard zoning map, an indicator light matrix, and a controller. The yard zoning map serves as the base of the guiding device, and the indicator lights are installed at the corresponding points. The controller is connected to the information processing module and receives instructions from the information processing module to control the indicator lights on the guiding device to flash. The display device is used to display a dynamic overview, anomaly feedback, and real-time dynamics of each zone of the yard. The information processing module is used to connect to the database and the human-computer interaction system, and to the pressure sensor, warning device, guidance device, display device, handheld PDA, and split UHF reader / writer via communication links. The information processing module monitors the changes of the pressure sensor in real time, calculates the changes in the three-dimensional coordinate system, and stores the change records in the database. The information processing module also monitors the heartbeat of system components in real time, detects the operating status of system components in real time, captures whether the pressure sensor exceeds the pressure limit in real time, listens for query commands from the human-computer interaction system in real time, controls the guidance device to respond, and provides point guidance. The information processing module performs real-time calculations of the dynamic overview, anomaly feedback, and real-time dynamics of each partition, and controls the display device to display plaintext information. The information processing module collects chip information from the split-type UHF reader in real time, and combines it with the pressure value changes of the pressure sensor to determine the entry and exit actions, and stores the entry and exit records into the database. The human-computer interaction system is used to initialize the basic data of the overall system, query warning records, entry and exit records, and summarize the number of entry and exit. The card-type ultra-high frequency chip is installed on the inner arc side of the tube segment to identify the finished tube segment. The handheld PDA is used for identifying and reading the code of card-type UHF chips and associating them with the chip archives for chip product identification. The split-type UHF reader consists of four parts: a UHF circularly polarized 9dBi antenna, a high-performance UHF electronic tag fixed reader, a communication module, and a patch sensor. The antenna feed line is directly connected to the reader and then connected to the information processing module through the communication module. The antenna is mounted on the tunnel segment clamp. The patch sensor is used to identify stress changes and trigger the reader to automatically read the card-type UHF chip attached to the tunnel segment. The database is used to receive, store, and process the following information: three-dimensional coordinate system information; pressure sensor encoding information; project information; correspondence between segment number, size specifications, burial depth, and weight; segment file information; correspondence between weight and pressure; real-time acquisition and recording by pressure sensors; real-time acquisition and recording by split-type UHF readers; handheld PDA identification records; early warning records; and segment entry and exit records.

2. The automatic positioning and identification system for tunnel segment stacking according to claim 1, characterized in that: The display device consists of a control card, an adapter board, and an LED unit board. The control card receives instructions from the information processing module, which are then transmitted through the adapter board to control the LEDs on the LED unit board, forming complete plaintext information. The display device is connected to the information processing module.

3. The automatic positioning and identification system for tunnel segment stacking according to claim 1, characterized in that: The handheld PDA consists of an ultra-high frequency reader / writer, a wireless communication module, and a data processing unit, and is connected to the information processing module.

4. The automatic positioning and identification system for tunnel segment stacking according to claim 1, characterized in that: The handheld PDA is used to attach card-type ultra-high frequency chips to the inner arc surface of the tube for identification. The split-type ultra-high frequency reader is used to read stress changes in the fixture, trigger the reader, and automatically read the inner arc-side card-type ultra-high frequency chip of the tunnel segment; The information processing module detects the pressure value of the pressure sensor and the chip information transmitted by the split-type ultra-high frequency reader in real time, and performs automatic identification, processing and calculation of entry and exit of each zone of the storage yard, determines the changes in the three-dimensional coordinate system, and stores the changes in the three-dimensional coordinate system into the database. The information processing module monitors in real time the offline anomaly feedback of system components, the abnormal operation feedback of system components, and the abnormal feedback of excessive stacking height of components, and instructs the alarm device to issue an audible and visual warning. The information processing module controls the indicator light matrix on the guidance device according to the dynamics of the yard. A red light indicates that the yard is full, and a green light indicates that the tunnel segments can be placed. The information processing module transmits the query command from the human-computer interaction system, and then controls the indicator light on the guidance device to flash for segment location; The information processing module calculates and summarizes the dynamic overview, anomaly feedback, and real-time dynamics of each zone of the storage yard, and controls the display device to display the data in plain text.

5. The identification method of the automatic positioning and identification system for tunnel segment stacking as described in any one of claims 1-4, characterized in that: Includes the following steps: a) Using the three-dimensional coordinate system, the storage yard is divided into sections according to the storage location of the tunnel segments. Each section is divided into sections X1……Xn, Y1……Yn along the X and Y axes in the planar direction, and Z1……Zn along the Z axis in the spatial height direction. The specific location of the tunnel segments can be determined by Xn, Yn, and Zn. b) The pressure sensor is installed at the center of the plane coordinates of the tunnel segment stacking location; the coded identifier of the pressure sensor corresponds one-to-one with Xn and Yn in the partition plane direction; c) Through the human-computer interaction system, establish basic information of the project and pressure sensor over-limit parameters; based on the project, establish and store the correspondence between segment number, size specifications, burial depth and weight in the database; establish and store the correspondence between weight and pressure value in the database; establish segment files, including unique segment code, project information, segment number, size specifications, burial depth, exit ring identification, grouting pipe identification, and polypropylene fiber identification, and store the file information in the database; d) Select the tube segment file using the handheld PDA, and simultaneously identify, read, and bind the card-type UHF chip. Then, install the bound card-type UHF chip on the inner arc surface of the tube segment for tube segment finished product identification. e) The split-type UHF reader identifies stress changes in the segment clamps, triggers the reader, and automatically reads the card-type UHF chip attached to the tunnel segment. f) Obtain the chip information of the split-type UHF reader through the information processing module, match the chip file, store the relevant information in the database, and wait for the next step of calculation; g) The information processing module detects the pressure value change of the pressure sensor in real time, performs algorithm fitting and data cleaning on the pressure value and weight value, and eliminates pressure value abnormalities caused by the lifting motion. h) The information processing module issues a warning of excessive component stacking height based on the pressure sensor's over-limit parameters, and stores the warning record in the database; i) The information processing module matches the correspondence between the segment number, size specification, burial depth and weight of the pipe segment according to the change of pressure value, and waits for the next step of calculation; j) Through the information processing module, combined with chip information and source detection records, determine the changes in the three-dimensional coordinate system and the chip information, and store the entry and exit records into the database; k) The information processing module detects the heartbeat of system components in real time; l) The information processing module monitors the operating status of system components in real time; m) The information processing module controls the indicator light matrix on the guidance device according to the dynamics of the yard. The red light indicates that the yard is full, and the green light indicates that the segment can be placed. n) The information processing module monitors the query commands of the human-computer interaction system in real time, controls the guidance device to respond and provide location guidance; o) Based on the real-time calculation of the dynamic overview, anomaly feedback and real-time dynamics of each partition by the information processing module, control the display device to display plaintext information.

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