Railway section and in-station coming vehicle avoidance early warning method and system based on Beidou positioning

Abstract

The invention relates to the technical field of personnel positioning, and particularly discloses a railway section and in-station coming vehicle avoidance early warning method and system based on Beidou positioning, and the system comprises a basic data module which is used for storing basic data; the work order interface module is used for synchronizing work order data; the TDCS query module is used for acquiring electric service TDCS query data; the Beidou real-time position module is used for acquiring position information of the user in real time through Beidou positioning and acquiring a theoretical early warning range of the user according to the position information of the user; the coming vehicle early warning processing module is used for executing different preset early warning steps according to the early warning scene; and the group communication module is used for sending the coming vehicle early warning information to the user. According to the invention, accurate coming vehicle avoidance early warning can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of personnel positioning, and in particular to a method and system for early warning of vehicle avoidance in railway sections and stations based on Beidou positioning. Background Art

[0002] Conventional warning methods for approaching vehicles include: (i) artificial section warning technology: using human intervention to achieve train approach warning, setting up a safety zone before and after the construction road railway line section, where the scope of the safety zone must ensure that construction personnel can evacuate in time after receiving the evacuation signal. Arrange safety personnel to guard the warning area, always observe the train operation status, and ensure that when the train approaches, the construction personnel and equipment in the safety zone are given an evacuation signal in time; (ii) based on the principle of vibration amplitude and sound recognition technology: using the method of measuring the change of solid sound in the rails to warn the approach of trains. The train and the rails generate excitation sound, which is propagated in the rails as solid sound. According to the law of solid sound propagation in the rails, the approach of the train is judged and an alarm is issued.

[0003] However, the artificial section warning technology is greatly affected by environmental factors, such as limited vision in rainy and foggy days, as well as busy construction sites and equipment noise, which makes it difficult to transmit notification signals in time, threatening the safety of life and property. At the same time, this technology consumes a lot of manpower and material resources, affecting the use efficiency; based on the vibration amplitude principle and sound recognition technology, it is easily interfered and difficult to accurately identify the direction of train operation and the source of sound. The algorithm has a large amount of calculation and high power consumption, which is not suitable for low-power applications in the field. Based on this, a railway section and station vehicle avoidance warning method and system based on Beidou positioning is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a railway section and station vehicle avoidance warning method and system based on Beidou positioning to solve the above-mentioned technical problems.

[0005] The purpose of the present invention can be achieved through the following technical solutions: The railway section and station vehicle avoidance warning system based on Beidou positioning includes: A basic data module is used to store basic data, including personnel, equipment, organization binding information, line station mileage information, station entry and exit signal equipment binding information, station entry and exit train window binding information and interval equipment sequence information; Work order interface module, used to synchronize work order data; TDCS query module, used to obtain TDCS query data for electric services; Beidou real-time location module, used to obtain the user's location information in real time through Beidou positioning, and obtain the user's theoretical warning range based on the user's location information. The theoretical warning range is used to measure the error of Beidou positioning; The vehicle approaching warning processing module executes different preset warning steps according to the warning scenarios, including the section vehicle approaching warning-automatic block section, section vehicle approaching warning-semi-automatic block section, station vehicle approaching warning-operating area vehicle approaching, station vehicle approaching warning-adjacent line area vehicle approaching; The group communication module is used to send oncoming vehicle warning information to users.

[0006] As a further solution of the present invention: in the Beidou real-time location module, the process of obtaining the user's theoretical warning range specifically includes: Obtain the user's location information based on Beidou positioning and determine the user's coordinates (x, y, z), where x, y, and z represent the user's x-axis coordinate, y-axis coordinate, and z-axis coordinate in a preset spatial rectangular coordinate system, respectively; Get the coordinates of user i (x i ,y i , z i ) and the coordinates of user j (x j ,y j , z j ), calculate the theoretical distance between user i and user j , get the actual distance d between user i and user j ij , calculate the deviation ratio K ij =d ij / D ij ; The circular area with the user i's location as the origin and a radius of the preset value r is called circle A. ij , the circle A ij The points whose deviation ratio with user j is equal to 1 are marked as the pending points of user i, and the set of pending points S of user i is generated. ij = (s1, s2, …, s n ), s n Represents circle A ij The nth undetermined point of user i is obtained, and the intersection of the undetermined point set corresponding to the user i is obtained as the target set; Mark the undetermined point in the target set as the target point, and obtain the coordinates of the target point a (X a , Y a , Z a ), X a , Y a , Z a They represent the x-axis coordinate, y-axis coordinate, and z-axis coordinate of the target point a in the preset spatial rectangular coordinate system, respectively, and calculate the deviation between the coordinates of the target point a and the user i. The calculation formula is: a，i =|X a -x i |+|Y a -yi |+|Z a -z i |.

[0007] As a further solution of the present invention: the process of obtaining the theoretical warning range of the user also includes the following steps: Step 1: Obtain a deviation, where the deviation is used to measure the gap between the user's actual location information and the Beidou positioning information, and sort the deviations in ascending order to obtain a first sort; Step 2: Obtain the total number m of the deviations, take the first m / 2 deviations in the first sort as the second sort FIR, and take the remaining deviations in the first sort as the second sort SEC; Calculate the difference F between the deviations at the same sorting position in the second sorting FIR and the second sorting SEC, and obtain the maximum difference; When the maximum difference is greater than or equal to the preset difference threshold, the splitting step is performed: Step 2-1: Calculate the average deviations corresponding to the first ranking, the second ranking FIR, and the second ranking SEC respectively. The average deviations corresponding to the first ranking, the second ranking FIR, and the second ranking SEC are recorded as average deviation DY, average deviation DRFIR, and average deviation DRSEC respectively; Step 2-2: Calculate the difference ΔCZ1 between the average deviation DY and the average deviation DRFIR, and calculate the difference ΔCZ2 between the average deviation DY and the average deviation DRSEC. When the difference ΔCZ2>ΔCZ1, execute step 2-3; when the difference ΔCZ2≤ΔCZ1, execute step 2-4; Step 2-3: remove the last deviation in the second ranking SEC to obtain a new second ranking SEC', and obtain a new first ranking with the second ranking FIR; Step 2-4: remove the deviation in the first position of the second ranking FIR to obtain a new second ranking FIR', and combine it with the second ranking SEC to obtain a new first ranking; When the maximum difference is less than the preset difference threshold, the mean value CJZ of the deviations in the first sorting at this time is calculated; Step 3: Obtain the user's location information based on Beidou positioning, draw a circle with the user's location as the center and the mean CJZ as the radius to obtain the user's theoretical warning range.

[0008] As a further solution of the present invention: when the total number of deviations in the first sorting is not an even number, the mean of the deviations in the first sorting is calculated to supplement the total number of deviations in the first sorting to be an even number.

[0009] As a further solution of the present invention: in the vehicle warning processing module, the warning steps include four types, corresponding to different warning scenarios.

[0010] As a further solution of the present invention: in the group communication module, the method of sending the warning information of the incoming vehicle includes voice call, video call, multi-party audio and video call, and group intercom call.

[0011] As a further solution of the present invention: the vehicle warning processing module further includes the following steps: When the theoretical warning range of the user intersects with the preset warning area, the user is regarded as a target user, and the oncoming vehicle warning information is only sent to the target user.

[0012] The method for avoiding and warning vehicles in railway sections and stations based on Beidou positioning includes the following steps: S1: storing basic data, including personnel, equipment, organization binding information, line station mileage information, station entry and exit signal equipment binding information, station entry and exit train window binding information and interval equipment sequence information; S2: used to synchronize job task data; S3: Obtaining TDCS query data for electric services; S4: obtaining the user's location information in real time through Beidou positioning, and obtaining the user's theoretical warning range according to the user's location information, wherein the theoretical warning range is used to measure the error of Beidou positioning; S5: judging whether to send vehicle warning information to the user according to the basic data and theoretical warning range; S6: Sending vehicle warning information to the user.

[0013] Beneficial effects of the present invention: The basic data module centrally stores information such as personnel, equipment, and organizational structures to avoid data dispersion and redundancy, and improve data consistency and manageability. The work order interface module can synchronize work order data in a timely manner, ensure information synchronization between departments, and improve the efficiency of collaborative work. The TDCS query module obtains the electric service TDCS data in real time to help the electric service department quickly understand the line status and respond to emergencies in a timely manner. The Beidou real-time location module ensures the accuracy of the warning information and enhances the reliability of the system by accurately locating the location of users and equipment and evaluating the positioning error. The vehicle warning processing module automatically executes preset steps according to different warning scenarios to ensure that necessary measures are taken before potential dangers occur, thereby improving operational safety. The group communication module efficiently sends vehicle warning information to relevant users, ensuring the timeliness and coverage of information transmission and reducing the possibility of information omissions. In addition, the modular design and open interface enable the system to have good scalability and flexibility, and can be expanded and integrated with other systems according to actual needs. Comprehensive data support and intelligent early warning processing procedures provide accurate decision-making basis for management, improving the timeliness and scientificity of decision-making; the present invention utilizes TDCS query data, obtains train information and train location safely and reliably through signal equipment of railway electrical engineering, and analyzes the precise location of operators in real time based on Beidou positioning technology, accurately pushes incoming train information to operators, and thus realizes accurate oncoming vehicle avoidance early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a flow chart of a method for early warning of vehicle avoidance in railway sections and stations based on Beidou positioning according to the present invention; Figure 2 It is a structural schematic diagram of the railway section and station vehicle avoidance warning system based on Beidou positioning of the present invention. DETAILED DESCRIPTION

[0016] 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 only 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 are within the scope of protection of the present invention.

[0017] See also Figure 1-2 As shown, the present invention is a railway section and station vehicle avoidance warning system based on Beidou positioning, comprising: A basic data module is used to store basic data, including personnel, equipment, organization binding information, line station mileage information, station entry and exit signal equipment binding information, station entry and exit train window binding information and interval equipment sequence information; Work order interface module, used to synchronize work order data; TDCS query module, used to obtain TDCS query data for electric services; Beidou real-time location module, used to obtain the user's location information in real time through Beidou positioning, and obtain the user's theoretical warning range based on the user's location information. The theoretical warning range is used to measure the error of Beidou positioning; The vehicle approaching warning processing module executes different preset warning steps according to the warning scenarios, including the section vehicle approaching warning-automatic block section, section vehicle approaching warning-semi-automatic block section, station vehicle approaching warning-operating area vehicle approaching, station vehicle approaching warning-adjacent line area vehicle approaching; The group communication module is used to send oncoming vehicle warning information to users.

[0018] It can be understood that the work order interface module is used to connect to the user's integrated management system, such as the electric service 8D system, the engineering service 8M system, the power supply 6C system, etc., synchronize the work order business data, pull the operation tasks into this system in real time, and add them to the cache for other modules to retrieve at any time; the TDCS query module is used to obtain the electric service TDCS query data, synchronize the collection and representation information and logic representation information of TDCS in real time, and the collection and representation information mainly includes: track, non-turnout section, block section, turnout information, and the logic representation information mainly includes: train number information, which is converted into train occupancy status (red light belt) data, locking status (white light belt approach) data, incoming train number, incoming train direction information, etc., and add them to the cache for other modules to retrieve at any time; In another preferred embodiment of the present invention, in the Beidou real-time location module, the process of obtaining the user's theoretical warning range specifically includes: Obtain the user's location information based on Beidou positioning and determine the user's coordinates (x, y, z), where x, y, and z represent the user's x-axis coordinate, y-axis coordinate, and z-axis coordinate in a preset spatial rectangular coordinate system, respectively; Get the coordinates of user i (x i ,y i , z i ) and the coordinates of user j (x j ,y j , z j ), calculate the theoretical distance between user i and user j , get the actual distance d between user i and user j ij , calculate the deviation ratio K ij =dij / D ij ; The circular area with the user i's location as the origin and a radius of the preset value r is called circle A. ij , the circle A ij The points whose deviation ratio with user j is equal to 1 are marked as the pending points of user i, and the set of pending points S of user i is generated. ij = (s1, s2, …, s n ), s n Represents circle A ij The nth undetermined point of user i is obtained, and the intersection of the undetermined point set corresponding to the user i is obtained as the target set; Mark the undetermined point in the target set as the target point, and obtain the coordinates of the target point a (X a , Y a , Z a ), X a , Y a , Z a They represent the x-axis coordinate, y-axis coordinate, and z-axis coordinate of the target point a in the preset spatial rectangular coordinate system, respectively, and calculate the deviation between the coordinates of the target point a and the user i. The calculation formula is: a，i =|X a -x i |+|Y a -y i |+|Z a -z i |.

[0019] In another preferred embodiment of the present invention, the process of obtaining the user's theoretical warning range further includes the following steps: Step 1: Obtain a deviation amount, where the deviation amount is used to measure the gap between the user's actual location information and the Beidou positioning information, and sort the deviation amounts in ascending order to obtain a first sort; Step 2: Obtain the total number m of the deviations, take the first m / 2 deviations in the first sort as the second sort FIR, and take the remaining deviations in the first sort as the second sort SEC; Calculate the difference F between the deviations at the same sorting position in the second sorting FIR and the second sorting SEC, and obtain the maximum difference; When the maximum difference is greater than or equal to the preset difference threshold, the splitting step is performed: Step 2-1: Calculate the average deviations corresponding to the first ranking, the second ranking FIR, and the second ranking SEC respectively. The average deviations corresponding to the first ranking, the second ranking FIR, and the second ranking SEC are recorded as average deviation DY, average deviation DRFIR, and average deviation DRSEC respectively; Step 2-2: Calculate the difference ΔCZ1 between the average deviation DY and the average deviation DRFIR, and calculate the difference ΔCZ2 between the average deviation DY and the average deviation DRSEC. When the difference ΔCZ2>ΔCZ1, execute step 2-3; when the difference ΔCZ2≤ΔCZ1, execute step 2-4; Step 2-3: remove the last deviation in the second ranking SEC to obtain a new second ranking SEC', and obtain a new first ranking with the second ranking FIR; Step 2-4: remove the deviation in the first position of the second ranking FIR to obtain a new second ranking FIR', and combine it with the second ranking SEC to obtain a new first ranking; When the maximum difference is less than the preset difference threshold, the mean value CJZ of the deviations in the first sorting at this time is calculated; Step 3: Obtain the user's location information based on Beidou positioning, draw a circle with the user's location as the center and the mean CJZ as the radius to obtain the user's theoretical warning range.

[0020] In another preferred embodiment of the present invention, when the total number of deviations in the first sorting is not an even number, the mean of the deviations in the first sorting is calculated to supplement the total number of deviations in the first sorting to be an even number.

[0021] In another preferred embodiment of the present invention, in the incoming vehicle warning processing module, the warning steps include four types corresponding to different warning scenarios.

[0022] It is understandable that when the warning scenario is the section approaching vehicle warning-automatic block section, the following steps are performed: Get the currently implemented work order, and obtain relevant data such as station ID, personnel list, and work area from it. At the same time, get the station IDs of the two adjacent stations based on the station ID, and determine the two stations adjacent to the current station; According to the work area of ​​the work order, obtain all signal equipment IDs and regional equipment sequence information in the corresponding two station areas, and obtain the real-time status of the corresponding station area signal equipment and the in-and-out train window information from the TDCS query module cache, and determine whether there is an occupied state (red light band). If so, obtain the real-time location of the personnel in the work order from the Beidou real-time location module, and convert the real-time location of the personnel into the corresponding section location; Combined with the regional equipment sequence and the in-and-out train window information, the regional position of the equipment in the occupied state (red light band) is compared with the regional position of the personnel. If the train is heading towards the personnel and the regional position distance difference is less than or equal to 3, the group communication module interface is called to send the incoming train forecast to all target personnel in the work order; If the distance difference is equal to 1, the group communication module interface is called to send an incoming vehicle forecast to all target personnel in the work order and notify them to get off the road; When the warning scenario is the section approaching vehicle warning-semi-automatic block section, perform the following steps: Take out the current work order from the work order interface module cache, parse the work order to obtain the station ID, personnel list, work area and other data of the work, and at the same time, obtain the station IDs of the two adjacent stations according to the station ID, and obtain the train collection information of the in-and-out station signal equipment corresponding to the two stations according to the work area of ​​the work order, and enter the real-time information of the station train window; Obtain the real-time status of the relevant entry and exit signal equipment of the corresponding station and the real-time information of the relevant entry and exit train number windows from the TDCS query module cache to determine whether there is an occupied state (red light band). If so, determine whether there is a vehicle leaving the station and entering the section; if there is a vehicle entering the section, obtain the real-time location of the personnel in the work order according to the Beidou real-time location module, and convert the real-time location of the personnel into the corresponding line mileage; According to the information in the train window, the train type is obtained, the planned running speed is obtained, and the time to arrive at the operation area is calculated based on the difference between the mileage of the inbound and outbound equipment and the real-time mileage of the personnel, combined with the train number information of the outbound train. If the time is less than or equal to 3 minutes, the group communication transmission module interface is called to send an incoming train alarm to the target user to notify him to get off the track; The warning scenario is the oncoming vehicle warning in the station - when a vehicle approaches the operation area, perform the following steps: Take out the current work order from the work order interface module cache, obtain the station ID, personnel list, work area and other data of the work, and obtain basic information related to the work, including the station ID, the list of personnel involved and the specific area of ​​the work; According to the operation area, the corresponding station signal equipment is obtained, and the real-time status of the corresponding signal equipment is obtained from the TDCS query module cache to determine whether there is an occupied state (red light band) or a locked state (white light band approach). If there is an occupied state, a warning message is sent to the corresponding target user; When the warning scenario is "Incoming Vehicle Warning in the Station - When a vehicle is approaching from the adjacent line area", perform the following steps Parse the work order to obtain the station ID, personnel list, work area and other data of the work, and obtain the real-time location of the operating personnel from the Beidou real-time location module, match the personnel location with the influence area of ​​all signal equipment in the station, determine whether the personnel are in the influence area of ​​a certain signal equipment, obtain the real-time status of the corresponding signal equipment from the TDCS query module cache, and determine whether the signal equipment is occupied (red light belt) or locked (white light belt approach). If so, call the group communication module interface to send a message to all target personnel in the work order: the train is about to pass through the relevant line area, please pay attention to the oncoming train.

[0023] In another preferred embodiment of the present invention, in the group communication module, the method of sending the incoming vehicle warning information includes voice call, video call, multi-party audio and video call, and group intercom call.

[0024] In another preferred embodiment of the present invention, the vehicle warning processing module further includes the following steps: When the theoretical warning range of the user intersects with the preset warning area, the user is regarded as a target user, and the oncoming vehicle warning information is only sent to the target user.

[0025] It is worth noting that early warning information is only sent to users who may be in danger to ensure the rational allocation and utilization of resources, thereby improving the efficiency and effectiveness of overall security management.

[0026] The method for avoiding and warning vehicles in railway sections and stations based on Beidou positioning includes the following steps: S1: storing basic data, including personnel, equipment, organization binding information, line station mileage information, station entry and exit signal equipment binding information, station entry and exit train window binding information and interval equipment sequence information; S2: used to synchronize job task data; S3: Obtaining TDCS query data for electric services; S4: obtaining the user's location information in real time through Beidou positioning, and obtaining the user's theoretical warning range according to the user's location information, wherein the theoretical warning range is used to measure the error of Beidou positioning; S5: judging whether to send vehicle warning information to the user according to the basic data and theoretical warning range; S6: Sending vehicle warning information to the user.

[0027] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. The railway section and station vehicle avoidance warning system based on Beidou positioning is characterized by: include: A basic data module is used to store basic data, including personnel, equipment, organization binding information, line station mileage information, station entry and exit signal equipment binding information, station entry and exit train window binding information and interval equipment sequence information; Work order interface module, used to synchronize work order data; TDCS query module, used to obtain TDCS query data for electric services; Beidou real-time location module, used to obtain the user's location information in real time through Beidou positioning, and obtain the user's theoretical warning range based on the user's location information. The theoretical warning range is used to measure the error of Beidou positioning; The vehicle approaching warning processing module executes different preset warning steps according to the warning scenarios, including the section vehicle approaching warning-automatic block section, section vehicle approaching warning-semi-automatic block section, station vehicle approaching warning-operating area vehicle approaching, station vehicle approaching warning-adjacent line area vehicle approaching; The group communication module is used to send oncoming vehicle warning information to users.

2. The railway section and station vehicle avoidance warning system based on Beidou positioning according to claim 1 is characterized in that: In the Beidou real-time location module, the process of obtaining the user's theoretical warning range specifically includes: Obtain the user's location information based on Beidou positioning and determine the user's coordinates (x, y, z), where x, y, and z represent the user's x-axis coordinate, y-axis coordinate, and z-axis coordinate in a preset spatial rectangular coordinate system, respectively; Get the coordinates of user i (x i ,y i , z i ) and the coordinates of user j (x j ,y j , z j ), calculate the theoretical distance between user i and user j , get the actual distance d between user i and user j ij , calculate the deviation ratio K ij =d ij / D ij ; The circular area with the user i's location as the origin and a radius of the preset value r is called circle A. ij , the circle A ij The points whose deviation ratio with user j is equal to 1 are marked as the pending points of user i, and the set of pending points S of user i is generated. ij = (s1, s2, …, s n ), s n Represents circle A ij The nth undetermined point of user i is obtained, and the intersection of the undetermined point set corresponding to the user i is obtained as the target set; Mark the undetermined point in the target set as the target point, and obtain the coordinates of the target point a (X a , Y a , Z a ), X a , Y a , Z a They represent the x-axis coordinate, y-axis coordinate, and z-axis coordinate of the target point a in the preset spatial rectangular coordinate system, respectively, and calculate the deviation between the coordinates of the target point a and the user i. The calculation formula is: a，i =|X a -x i |+|Y a -y i |+|Z a -z i |.

3. The railway section and station vehicle avoidance warning system based on Beidou positioning according to claim 2 is characterized in that: The process of obtaining the user's theoretical warning range also includes the following steps: Step 1: Obtain a deviation, where the deviation is used to measure the gap between the user's actual location information and the Beidou positioning information, and sort the deviations in ascending order to obtain a first sort; Step 2: Obtain the total number m of the deviations, take the first m / 2 deviations in the first sort as the second sort FIR, and take the remaining deviations in the first sort as the second sort SEC; Calculate the difference F between the deviations at the same sorting position in the second sorting FIR and the second sorting SEC, and obtain the maximum difference; When the maximum difference is greater than or equal to the preset difference threshold, the splitting step is performed: Step 2-1: Calculate the average deviations corresponding to the first ranking, the second ranking FIR, and the second ranking SEC respectively. The average deviations corresponding to the first ranking, the second ranking FIR, and the second ranking SEC are recorded as average deviation DY, average deviation DRFIR, and average deviation DRSEC respectively; Step 2-2: Calculate the difference ΔCZ1 between the average deviation DY and the average deviation DRFIR, and calculate the difference ΔCZ2 between the average deviation DY and the average deviation DRSEC. When the difference ΔCZ2>ΔCZ1, execute step 2-3; when the difference ΔCZ2≤ΔCZ1, execute step 2-4; Step 2-3: remove the deviation of the last digit in the second sort SEC to obtain a new second sort SEC', and add it to the second sort FIR to obtain a new first sort, and execute step 2 again; Step 2-4: remove the deviation in the first position of the second sorting FIR to obtain a new second sorting FIR', and combine it with the second sorting SEC to obtain a new first sorting, and perform step 2 again; When the maximum difference is less than the preset difference threshold, the mean value CJZ of the deviations in the first sorting at this time is calculated; Step 3: Obtain the user's location information based on Beidou positioning, draw a circle with the user's location as the center and the mean CJZ as the radius to obtain the user's theoretical warning range.

4. The railway section and station vehicle avoidance warning system based on Beidou positioning according to claim 3 is characterized in that: When the total number of deviations in the first sorting is not an even number, the average of the deviations in the first sorting is calculated to supplement the total number of deviations in the first sorting to be an even number.

5. The railway section and station vehicle avoidance warning system based on Beidou positioning according to claim 1 is characterized in that: In the vehicle warning processing module, the warning steps include four types, corresponding to different warning scenarios.

6. The railway section and station vehicle avoidance warning system based on Beidou positioning according to claim 1 is characterized in that: In the group communication module, the methods of sending the incoming vehicle warning information include voice call, video call, multi-party audio and video call, and group intercom call.

7. The railway section and station vehicle avoidance warning system based on Beidou positioning according to claim 1 is characterized in that: The vehicle warning processing module further includes the following steps: When the theoretical warning range of the user intersects with the preset warning area, the user is regarded as a target user, and the oncoming vehicle warning information is only sent to the target user.

8. A method for early warning of vehicle avoidance in railway sections and stations based on Beidou positioning, characterized in that: The following steps are involved: S1: storing basic data, including personnel, equipment, organization binding information, line station mileage information, station entry and exit signal equipment binding information, station entry and exit train window binding information and interval equipment sequence information; S2: Synchronize work order data; S3: Obtaining TDCS query data for electric services; S4: obtaining the user's location information in real time through Beidou positioning, and obtaining the user's theoretical warning range according to the user's location information, wherein the theoretical warning range is used to measure the error of Beidou positioning; S5: different preset warning steps are executed for the warning scenarios, including section vehicle arrival notice - automatic block section, section vehicle arrival notice - semi-automatic block section, station vehicle arrival notice - vehicle arrival in the operation area, station vehicle arrival notice - vehicle arrival in the adjacent line area; S6: Sending vehicle warning information to the user.

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