Engineering vehicle position tracking method based on track occupation, electronic equipment and medium

By installing electronic magnet next to the track and installing electronic tags on the vehicle, combining track occupation and equipment status information, the location of the engineering vehicle is updated in real time, and the problems of high cost and low efficiency of engineering vehicle position tracking in the existing technology are solved, high-precision and real-time position tracking are achieved, and system safety and response capabilities are enhanced.

CN119992865APending Publication Date: 2025-05-13CASCO SIGNAL LTD
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Patent Information

Application Number
CN202411961539.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

The prior art is difficult to realize real-time tracking of engineering vehicle locations at low cost, especially in engineering vehicles that do not have electronic tags, resulting in low vehicle scheduling efficiency and increased possibility of safety accidents.

Method used

By installing electronic magnet next to the track and installing electronic tags on the vehicle, combining track occupancy and equipment status information, the location of the engineering vehicle is calculated and updated in real time.

Benefits of technology

Real-time and dynamic updates of engineering vehicle locations are realized, the sensitivity and accuracy of position tracking are improved, the system's response capabilities and safety are enhanced, and the dependence of manual intervention is reduced.

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Abstract

The invention relates to an engineering vehicle position tracking method based on track occupation, electronic equipment and a medium. The method comprises the steps that the initial position of an engineering vehicle is acquired; configuring entry and exit lines of the vehicle yard section and track position information of the vehicle washing garage and the parking garage; the initial position of the engineering vehicle is recorded in a structured mode; obtaining vehicle information and equipment state information of the whole parking lot section, wherein the equipment state information comprises track occupation information; and calculating and updating the position of the engineering vehicle in real time through track occupation and equipment state information. Compared with the prior art, the method has the advantages that continuous and real-time position tracking of the engineering vehicle is achieved at low cost, and the response capacity, safety and stability of a rail transit system are enhanced.
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Description

Technical Field

[0001] The present invention relates to the technical field of rail transit vehicle positioning, and in particular to a method, electronic equipment and medium for tracking the position of an engineering vehicle based on track occupancy. Background Art

[0002] In the field of rail transit, engineering vehicles play multiple roles such as maintenance, construction, rescue and daily operation support, and are key factors in ensuring the safe and efficient operation of rail transit systems. They can not only be used to perform routine inspection and maintenance of tracks to ensure the safety and stability of the lines, but also to tow subway trains for shunting operations at the maintenance base. They also have the function of towing rescue accident trains on the main line. In the event of an accident or emergency, engineering vehicles can quickly arrive at the scene for rescue and repair work. Engineering vehicles can be divided into two types: those with electronic tags and those without electronic tags. Engineering vehicles with electronic tags can be located in real time. However, for engineering vehicles without electronic tags, the main method of obtaining their location is for dispatchers to communicate with drivers through dedicated handheld radios to obtain the location of engineering vehicles. Engineering vehicles usually only operate during non-peak hours or specific maintenance windows to reduce interference with daily operations, but since the real-time location of the vehicle cannot be obtained in real time, this will greatly interfere with the efficiency of vehicle dispatching, increase the possibility of collision between operating vehicles and engineering vehicles, and cause safety accidents.

[0003] The existing positioning technology used for electric buses can be used for real-time positioning of engineering vehicles, but it is necessary to install corresponding positioning equipment in the area where the engineering vehicles appear, which is costly and time-consuming.

[0004] After searching, Chinese invention patent application publication number CN117227804A discloses a train location tracking method, device, electronic device and storage medium, the method includes: obtaining the train information of each current section of the whole line collected and identified in real time by each information collection and identification unit arranged on the trackside; based on the train information of each current section of the whole line, determining the occupied / idle status of each current section and the identification information of the train in each current section; based on the occupied / idle status of each current section and the identification information of the train in each current section, tracking the train location. This existing invention application has the problem that it needs to deploy multiple information collection and identification units (cameras), the cost is high, and it is not suitable for some engineering vehicles without electronic tags.

[0005] How to achieve real-time tracking of the location of engineering vehicles at low cost has become a technical problem that needs to be solved. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a method, electronic device and medium for tracking the position of an engineering vehicle based on track occupancy.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] According to one aspect of the present invention, a method for tracking the position of an engineering vehicle based on track occupancy is provided, the method comprising the following steps:

[0009] Step 1, obtaining the initial position of the engineering vehicle;

[0010] Step 2: Configure the track location information of the vehicle yard entrance and exit lines, car wash and parking garage;

[0011] Step 3, structured recording of the initial position of the engineering vehicle;

[0012] Step 4, obtaining vehicle information and equipment status information of the entire parking lot section, wherein the equipment status information includes track occupancy information;

[0013] Step 5: Calculate and update the location of the engineering vehicle in real time based on track occupancy and equipment status information.

[0014] Preferably, there are two ways to obtain the initial position of the engineering vehicle, namely:

[0015] 1) Manually set the initial position of the engineering vehicle;

[0016] 2) By installing electronic tags on vehicles and electronic magnets beside the parking garage tracks and at the entrances and exits of vehicle yards, when engineering vehicles pass by, the vehicle number ground automatic recognition equipment will sense and obtain the vehicle number, location and passing time of the engineering vehicle.

[0017] Preferably, the process of structured recording of the initial position of the engineering vehicle in step 3 includes:

[0018] Step 301, after obtaining the initial position of the vehicle, save the vehicle number identification information;

[0019] Step 302: Determine whether there is a window for the number of engineering vehicles in the yard. If not, execute step 303; if there is a window for the number of engineering vehicles, execute step 304;

[0020] Step 303: Register the vehicle number information with ATS, mark the engineering vehicle as an active engineering vehicle, add a new engineering vehicle active information, update the time of entering the site, and end;

[0021] Step 304, if there is the vehicle window information, then determine whether it is an engineering vehicle leaving the depot, if yes, execute step 305; otherwise, execute step 308;

[0022] Step 305, start the timer, and if the vehicle does not leave the vehicle within the timer, obtain the vehicle position again after the timer times out and execute step 306; otherwise, the vehicle has left the vehicle and the process ends;

[0023] Step 306, determine whether the track corresponding to the train window is the track of the entry and exit line. If yes, determine whether the track is occupied. If not, it means that the engineering vehicle has left the yard. Delete the engineering vehicle information from the active engineering vehicle information and end. If no, execute step 307;

[0024] Step 307: If the engineering vehicle has not left the yard and the track corresponding to the train window is not a track within the yard, it means that the engineering vehicle has left the yard, and the engineering vehicle information is deleted from the active engineering vehicle information, and the process ends;

[0025] Step 308, if the construction vehicle is not heading to leave the site, determine whether there is active information for the vehicle. If not, add a new active information for the construction vehicle and update the time of entering the site; end.

[0026] More preferably, in step 301, the vehicle number recognition information includes the vehicle number, location, passing time and passing direction.

[0027] More preferably, whether it is an engineering vehicle leaving the site is determined based on the running direction of the engineering vehicle, the entry and exit line numbers and the exit AEI equipment number.

[0028] More preferably, in step 306, the track corresponding to the train window is the track of the entry and exit line, and the track is occupied, which means that the engineering vehicle has not left the warehouse, and the engineering vehicle status is updated to the waiting-to-leave-the-warehouse status.

[0029] Preferably, the equipment status information in step 4 includes status information of signals, switches, sections and parking tracks.

[0030] Preferably, in step 4, it is also necessary to obtain the station map configuration file information, CAD drawing information, all track routes and the upper and lower reverse connection relationship of all equipment in the parking lot section.

[0031] Preferably, in step 4, the information of all CBTC vehicles in the field is also obtained for automatically identifying the detachment status of engineering vehicles and operating trains.

[0032] Preferably, step 5 includes traversing all active engineering vehicles, and calculating and updating the positions of corresponding engineering vehicles according to the vehicle status and equipment status information, specifically including:

[0033] When the engineering vehicle has a train window and the equipment corresponding to the train window is in occupied state, it means that the position of the engineering vehicle is normal;

[0034] If the construction vehicle does not have a train number window, or has a train number window but the corresponding equipment is not occupied, find the electric bus closest to the last location where the construction vehicle appeared, bind the construction vehicle and the electric bus numbers, and the location of the electric bus is the location of the construction vehicle.

[0035] More preferably, the step 5 also includes: determining whether there is unknown occupancy in the space of one track from the location where the engineering vehicle appeared most recently. If not, it means that the engineering vehicle and the electric passenger car are still moving together, and the train number window will disappear after the configuration parameters time out; if there is unknown occupancy, the electric passenger car and the engineering vehicle will be uncoupled, and the data of the engineering vehicle and the electric passenger car need to be untied, and the engineering vehicle train number window needs to be re-registered.

[0036] More preferably, the nearest track is checked in both upward and downward directions to see if it is occupied. If neither is occupied or the nearest track is found to be occupied in both upward and downward directions, it means that the position of the engineering vehicle is lost, and the user needs to be prompted to manually confirm the position information. If the nearest track is found to be occupied in only one direction, the latest position of the engineering vehicle is updated according to the position of the electric passenger car.

[0037] According to another aspect of the present invention, an electronic device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the method described above is implemented when the processor executes the program.

[0038] According to a third aspect of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon, wherein the program implements the method described above when executed by a processor.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] 1) The present invention obtains the initial position of the engineering vehicle with high accuracy through automation, and can dynamically update the position of the engineering vehicle in real time by real-time monitoring of track occupancy and equipment status information. This real-time nature makes the position tracking more sensitive and can quickly respond to the movement of the vehicle, ensuring that the dispatchers and drivers can obtain the latest vehicle position information. Compared with existing solutions that may have delays or require periodic updates, this method can provide more continuous and real-time position tracking, enhancing the responsiveness and safety of the system.

[0041] 2) The present invention achieves high-precision automatic acquisition of the initial position by installing electronic magnets next to the parking garage track and installing electronic tags on the vehicle, reducing the error and labor intensity of manually setting the initial position and improving the accuracy and reliability of the position information. Compared with the existing solutions that rely on manual recording or simple sensors, this method can provide more accurate vehicle position data, providing a solid foundation for subsequent tracking and scheduling.

[0042] 3) The present invention processes various situations through intelligent logical judgment, such as automatic identification of vehicle unhook and unhook status, registration and update of train window information, and judgment of unknown occupancy. This intelligent processing reduces the reliance on manual intervention and improves the efficiency and accuracy of data processing. Compared with existing solutions that may require manual judgment and processing of large amounts of data, this method reduces human errors through automated logical judgment and improves the stability and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a flow chart of the engineering vehicle entry information recording in the present invention;

[0044] Figure 2 It is a flow chart of the engineering vehicle position calculation and tracking in the present invention;

[0045] Figure 3 It is a flow chart of the method for tracking the position of an engineering vehicle in the present invention. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0047] This embodiment relates to a method for tracking the position of an engineering vehicle based on track occupancy. The method sets the initial position of the engineering vehicle and comprehensively determines the position of the engineering vehicle through track occupancy and operating vehicle information. The position is displayed in real time on a track line map and supports manual calibration of the position of the engineering vehicle. Dispatchers can view the position of the engineering vehicle in real time to ensure the safety and stability of the track line.

[0048] A method for tracking the position of engineering vehicles based on track occupancy, such as Figure 3 , including the following steps:

[0049] Step 1: Install electronic magnets next to the tracks at the entrances and exits of the engineering vehicle parking garage and vehicle yard to obtain the initial position of the engineering vehicle.

[0050] Step 2: Configure the entry and exit lines of the vehicle yard, the track location information of the car wash and parking garage.

[0051] Step 3: Structured record of the initial position of the engineering vehicle.

[0052] Step 4, obtaining vehicle information and equipment status information of the entire parking lot section, wherein the equipment status information includes track occupancy information, signal light and other equipment status information.

[0053] Step 5: Calculate and update the location of the engineering vehicle in real time based on track occupancy and equipment status information.

[0054] The key point of the engineering vehicle position tracking method based on track occupancy is the acquisition of the initial position of the engineering vehicle and the update of the real-time position.

[0055] There are two ways to obtain the initial position in step 1. The first is to manually set the initial position of the engineering vehicle. The other is to install an electronic tag on the vehicle and then install an electronic magnet next to the track. When the engineering vehicle passes by, the electronic magnet will sense the vehicle number, location and passing time. This method only requires a limited number of electronic magnets to be installed at the parking garage. The electronic magnet is a vehicle number ground automatic identification device (AEI).

[0056] For step 2: it is necessary to configure the entry and exit lines of the parking lot, the track positions of the car wash and parking garage. For example, the track position of the parking garage is 20G. Such markings will help to quickly locate and identify the vehicle during the subsequent tracking process.

[0057] For step 3, if Figure 1 , specifically including the following steps:

[0058] Step 301, after obtaining the initial position of the vehicle from the trackside equipment, it is necessary to save the vehicle identification information, which includes the vehicle number, position, passing time and passing direction;

[0059] Step 302: Determine whether there is a window for the number of engineering vehicles in the yard. If not, execute step 303; if there is a window for the number of engineering vehicles, execute step 304;

[0060] Step 303: Register the train number information with ATS (Automatic Train Monitoring System), mark the engineering vehicle as an active engineering vehicle, add a new engineering vehicle active information, update the time of entering the depot, and end.

[0061] Step 304, if there is the vehicle window information, then determine whether it is an engineering vehicle leaving the depot, if yes, execute step 305; otherwise, execute step 308;

[0062] Step 305, start a 1-minute timer. If the vehicle has not left the vehicle within 1 minute, obtain the vehicle position again after 1 minute and execute step 306; otherwise, the vehicle has left the vehicle and the process ends.

[0063] Step 306, if the track corresponding to the train window is the track of the entry and exit line, determine whether the track is occupied. If it is not occupied, it means that the engineering vehicle has left the yard, and the engineering vehicle information is deleted from the active engineering vehicle information, and the process ends; if the track is occupied, it means that the engineering vehicle has not left the yard and is still in the yard, waiting to leave the yard.

[0064] Step 307: If the engineering vehicle has not left the yard and the track corresponding to the train window is not a track within the yard, it means that the engineering vehicle has left the yard, and the engineering vehicle information is deleted from the active engineering vehicle information.

[0065] Step 308, if the construction vehicle is not heading to leave the site, determine whether there is active information for the vehicle. If not, add a new active information for the construction vehicle and update the time of entering the site. If there is such active information, do not do anything to avoid duplication of invalid data.

[0066] According to the running direction of the engineering vehicle, the entry and exit line numbers and the exit AEI equipment number, determine whether it is an engineering vehicle leaving the yard. Specifically: if the running direction of the engineering vehicle is the direction of leaving the yard, and the entry and exit line number is the exit number, and the exit AEI equipment number is the equipment number of the trackside departure section, then it is determined that the engineering vehicle has left the yard.

[0067] For step 4: it is necessary to obtain all equipment status information in the parking lot section, as well as the station map configuration file information, CAD drawing information, all track routes, the up and down reverse connection relationship of all equipment, equipment category information, and the Chinese information corresponding to all status values, and the display form of different equipment states, including color, flashing, lines, marks, etc. The equipment status information includes signals, tracks, switches, sections, parking tracks, etc., and is configured with no switch, section, switch, three-open switch status identification, switch fixed reverse position identification, switch opening direction identification, signal machine status identification, as well as all CBTC vehicle information in the field section. This information is mainly used to automatically identify the uncoupling status of engineering vehicles and operating trains.

[0068] For step 5, traverse all active engineering vehicles and perform different processing according to the vehicle status and equipment status, such as Figure 2 , specifically including:

[0069] When the vehicle has a train window and the equipment corresponding to the train window is in occupied state, it means that the position of the engineering vehicle is normal and no operation is required;

[0070] If the vehicle does not have a train number window, or has a train number window but the corresponding device is not occupied, there are two situations:

[0071] 1) The engineering vehicles and electric passenger cars were uncoupled and then uncoupled;

[0072] 2) Construction vehicles and electric passenger cars are still detached and coupled together for movement.

[0073] At this time, find the electric passenger car closest to the location where the construction vehicle appeared last. Because it is running on tracks, the vehicle position will not cross another vehicle, so the nearest electric passenger car is the location of the construction vehicle. Bind the construction vehicle and electric passenger car numbers, and the construction vehicle will be at the corresponding position wherever the electric passenger car moves.

[0074] Then determine whether there is any unknown occupation in the interval between the last position. If there is no unknown occupation in the interval between the tracks, it means that the engineering vehicle and the electric passenger car are still moving together, and the engineering vehicle train window will disappear after one minute (ATS configuration parameter); if there is occupation in the interval between the tracks, ATS (Automatic Train Monitoring System) will automatically mark it as the electric passenger car occupying multiple tracks, and its train window is the train window of the electric passenger car. If there is unknown occupation, it means that the electric passenger car and the engineering vehicle are unhooked, and the data of the engineering vehicle and the electric passenger car need to be untied, and the engineering vehicle train window needs to be re-registered.

[0075] Determine whether all active engineering vehicles have been traversed. If so, end the process; otherwise, continue traversing.

[0076] The key point is how to determine track occupancy and whether the occupation is for engineering vehicles based on the equipment status. When judging the vehicle position, if the bound engineering vehicle is not found, it is necessary to find the track corresponding to the vehicle window, and then according to the type of equipment, such as whether it is connected to a turnout or a signal, the direction of the turnout, whether it is left-upper-left-lower or right-upper-right-lower, and whether the signal is a terminal signal or a shunting signal. For example, if the connected turnout is connected, it is necessary to determine the turnout's reverse position based on the turnout direction, and then loop in one direction. If the device is then connected to a signal, it is necessary to recursively find the nearest track again. After finding the nearest track, it is necessary to determine whether the track is occupied. And it is necessary to find the nearest track with an interval of 1 in both the upward and downward directions to see if it is occupied. If none of them are found or the interval of 1 track is found in both the upward and downward directions, it means that the position of the engineering vehicle is lost, and the user needs to be prompted to manually confirm the position information. If only one direction finds that the interval of 1 track is occupied, the latest position of the engineering vehicle is updated according to the position of the electric passenger car.

[0077] There is one track between them, that is, three tracks A, B and C laid in sequence. A and C are both adjacent tracks of B, and C is the track between them.

[0078] The present invention also provides a visual interface to support users to view the position of engineering vehicles in real time and to manually calibrate the position of the vehicles.

[0079] The electronic device of the present invention includes a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in a read-only memory (ROM) or loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for device operation can also be stored. The CPU, ROM and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0080] Multiple components in the device are connected to the I / O interface, including: input units, such as keyboards, mice, etc.; output units, such as various types of displays, speakers, etc.; storage units, such as disks, optical disks, etc.; and communication units, such as network cards, modems, wireless communication transceivers, etc. The communication unit allows the device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunication networks.

[0081] The processing unit performs the various methods and processes described above. For example, in some embodiments, the method can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of the method described above can be performed. Alternatively, in other embodiments, the CPU can be configured to perform the method in any other appropriate manner (e.g., by means of firmware).

[0082] The functions described above herein may be performed at least in part by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), and the like.

[0083] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0084] In the context of the present invention, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0085] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for tracking the position of an engineering vehicle based on track occupancy, characterized in that: The method comprises the following steps: Step 1, obtaining the initial position of the engineering vehicle; Step 2: Configure the track location information of the vehicle yard entrance and exit lines, car wash and parking garage; Step 3, structured recording of the initial position of the engineering vehicle; Step 4, obtaining vehicle information and equipment status information of the entire parking lot section, wherein the equipment status information includes track occupancy information; Step 5: Calculate and update the engineering vehicle position in real time based on track occupancy and equipment status information.

2. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 1, characterized in that: There are two ways to obtain the initial position of the engineering vehicle, namely: 1) Manually set the initial position of the engineering vehicle; 2) By installing electronic tags on vehicles and electronic magnets beside the parking garage tracks and at the entrances and exits of vehicle yards, when engineering vehicles pass by, the vehicle number ground automatic recognition equipment will sense and obtain the vehicle number, location and passing time of the engineering vehicle.

3. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 1, characterized in that: The process of structured recording of the initial position of the engineering vehicle in step 3 includes: Step 301, after obtaining the initial position of the vehicle, save the vehicle number identification information; Step 302: Determine whether there is a window for the number of engineering vehicles in the yard. If not, execute step 303; if there is a window for the number of engineering vehicles, execute step 304; Step 303: Register the vehicle number information with ATS, mark the engineering vehicle as an active engineering vehicle, add a new engineering vehicle active information, update the time of entering the site, and end; Step 304, if there is the vehicle window information, then determine whether it is an engineering vehicle leaving the depot, if yes, execute step 305; otherwise, execute step 308; Step 305, start the timer, and if the vehicle does not leave the vehicle within the timer, obtain the vehicle position again after the timer times out and execute step 306; otherwise, the vehicle has left the vehicle and the process ends; Step 306, determine whether the track corresponding to the train window is the track of the entry and exit line. If yes, determine whether the track is occupied. If not, it means that the engineering vehicle has left the yard. Delete the engineering vehicle information from the active engineering vehicle information and end. If no, execute step 307; Step 307: If the engineering vehicle has not left the yard and the track corresponding to the train window is not a track within the yard, it means that the engineering vehicle has left the yard, and the engineering vehicle information is deleted from the active engineering vehicle information, and the process ends; Step 308, if the construction vehicle is not heading to leave the site, determine whether there is active information for the vehicle. If not, add a new active information for the construction vehicle and update the time of entering the site; end.

4. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 3, characterized in that: In step 301, the vehicle number recognition information includes the vehicle number, location, passing time and passing direction.

5. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 3, characterized in that: Determine whether it is an engineering vehicle leaving the site based on its running direction, entry and exit line numbers, and exit AEI equipment number.

6. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 3, characterized in that: In step 306, if the track corresponding to the train window is the track of the entry and exit line and the track is occupied, it means that the engineering vehicle has not left the warehouse, and the engineering vehicle status is updated to the waiting-to-leave-the-warehouse status.

7. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 1, characterized in that: The equipment status information in step 4 includes status information of signals, switches, sections and parking tracks.

8. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 1, characterized in that: In step 4, it is also necessary to obtain the station map configuration file information, CAD drawing information, all track routes and the upper and lower reverse connection relationship of all equipment in the parking lot section.

9. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 1, characterized in that: In step 4, the CBTC vehicle information of all vehicles in the field is also obtained for automatic identification of the detachment status of engineering vehicles and operating trains.

10. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 1, characterized in that: The step 5 includes traversing all active engineering vehicles, and calculating and updating the positions of corresponding engineering vehicles according to the vehicle status and equipment status information, specifically including: When the engineering vehicle has a train window and the equipment corresponding to the train window is in occupied state, it means that the position of the engineering vehicle is normal; If the construction vehicle does not have a train number window, or has a train number window but the corresponding equipment is not occupied, find the electric bus closest to the last location where the construction vehicle appeared, bind the construction vehicle and the electric bus numbers, and the location of the electric bus is the location of the construction vehicle.

11. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 10, characterized in that: The step 5 also includes: determining whether there is unknown occupation of the track between the most recent construction vehicle location. If not, it means that the construction vehicle and the electric passenger car are still moving together, and the train number window will disappear after the configuration parameters time out; if there is unknown occupation, the electric passenger car and the construction vehicle will be uncoupled, and the data of the construction vehicle and the electric passenger car need to be untied, and the construction vehicle train number window needs to be re-registered.

12. The method for tracking the position of an engineering vehicle based on track occupancy according to claim 11, characterized in that: At the same time, check whether the nearest track is occupied in both the upward and downward directions. If neither is occupied or the nearest track is occupied in both the upward and downward directions, it means that the position of the engineering vehicle is lost, and the user needs to be prompted to manually confirm the position information. If the nearest track is occupied in only one direction, the latest position of the engineering vehicle is updated according to the position of the electric passenger car.

13. An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, wherein: When the processor executes the program, the method according to any one of claims 1 to 12 is implemented.

14. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 12 is implemented.

Citation Information

Patent Citations

  • Train position tracking method and device, electronic equipment and storage medium

    CN117227804A