Auxiliary protection equipment for shunting operation of electric passenger car depot

Abstract

The utility model discloses auxiliary protection equipment for shunting operation of a vehicle depot of an electric passenger car, which comprises vehicle-mounted equipment and ground equipment, the vehicle-mounted equipment comprises a driving safety monitoring system, a vehicle-mounted data transmission module, a speed sensor and a positioning inquiry antenna, the vehicle-mounted data transmission module and the speed sensor are respectively connected with the driving safety monitoring system, and the positioning inquiry antenna is connected with the ground equipment. And the ground equipment comprises a computer interlock and an interface server connected with the computer interlock. According to the technical scheme, the accurate position of the electric passenger car and the position of the ground prevention and control point are obtained, the ground basic data and the station yard data are combined, safety protection information is formed through comprehensive processing, the anti-fake, anti-overloading and anti-collision functions in the running process of the electric passenger car are achieved, and the problem that at present, an effective technical prevention means is lacked when the electric passenger car runs in a depot is solved. And the driving safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric passenger car driving safety monitoring, in particular to an auxiliary protection device used for shunting operations in electric passenger car depots. Background Art

[0002] With the rapid development of my country's social economy and the gradual increase in urbanization rate, my country's urban rail transit has entered a stage of rapid development, and the number of electric passenger cars and safety requirements are also increasing. The electric passenger car depot is a place for the operation, parking, repair and maintenance of vehicles in the urban rail transit system. The route during the shunting operation is relatively complex, and the driver is usually in manual driving mode in the depot. During the operation, it completely relies on the driver's experience to operate, and there are risks of speeding and recklessness. With the increase in subway lines and depots, it will be very risky to rely entirely on human participation.

[0003] Chinese patent document CN2881796Y discloses a "fuel cell city bus operation monitoring device". The bus operation monitoring device is an on-board information system that integrates data acquisition and storage, information display, GPS, and wireless data transmission. The control mainboard is connected to the CAN network through its wireless data transmission and the GPS or GPRS wireless connection of the touch screen through the CAN interface, and is connected to the display and other peripheral devices through the display interface through interface switching; the power supply supplies power to the control mainboard through the power socket. The above technical solution has limited auxiliary effect on vehicle monitoring. Summary of the invention

[0004] The utility model mainly solves the technical problem that the original technical solution has limited auxiliary effect on vehicle monitoring, and provides an auxiliary protection device for shunting operations in electric passenger car depots. When a vehicle passes over a positioning beacon, a position query unit obtains beacon information by querying an antenna to realize vehicle positioning, and an operation monitoring system locates the position in basic data according to the beacon number, thereby determining the absolute position of the vehicle; the running distance is calculated by an existing speed measuring sensor to determine the relative position of the vehicle, and the absolute position and relative position are combined to realize the positioning and correction of the vehicle position; the precise position of the electric passenger car and the position of the ground control point are obtained, combined with the ground basic data and the station field data, and comprehensive processing is performed to form safety protection information, so as to realize the functions of anti-overtaking, anti-overtaking and anti-collision in the operation of the electric passenger car, solve the problem that the current electric passenger car lacks effective technical protection means in the operation of the depot, and reduce the risk of driving safety.

[0005] The above technical problems of the utility model are mainly solved by the following technical solutions: the utility model includes vehicle-mounted equipment and ground equipment, the vehicle-mounted equipment includes a driving safety monitoring system and a vehicle-mounted data transmission module and a speed sensor respectively connected thereto, and also includes a positioning query antenna, and the ground equipment includes a computer interlock and an interface server connected thereto. The vehicle positioning is realized by obtaining beacon information through the query antenna by the position query unit, and the operation monitoring system locates the position in the basic data according to the beacon number, thereby determining the absolute position of the vehicle; the running distance is calculated by the existing speed measuring sensor to determine the relative position of the vehicle, and the absolute position and relative position are combined to realize the positioning and correction of the vehicle position; by obtaining the precise position of the electric passenger car and the position of the ground control point, combining the ground basic data and the station field data, the comprehensive processing forms the safety protection information, realizes the functions of anti-stealing, anti-overtaking and anti-collision in the operation of the electric passenger car, solves the problem of the current lack of effective technical defense means in the operation of the electric passenger car in the vehicle section, and reduces the driving safety risk.

[0006] Preferably, the driving safety monitoring system includes a core board and a single-chip microcomputer, and also includes a power module connected to the core board and the single-chip microcomputer respectively, and the core board is connected to RS422 and Ethernet respectively. The external 110V is powered by the system after power conversion. The positioning query antenna transmits the acquired positioning beacon data to the internal core board via RS422; the data transmission module sends the received interlocking data to the core board via the Ethernet module; the single-chip microcomputer module collects the speed sensor signal, and transmits it to the core board via CAN after conversion; finally, the core board processes all the received data, and the data information is displayed on an independent display screen.

[0007] Preferably, the input end of the single-chip microcomputer is connected to a speed sensor, and the output end of the single-chip microcomputer is connected to the core board via CAN. The speed sensor is used to collect vehicle speed information. The system obtains the sensor speed signal through the vehicle orthogonal signal speed signal interface. After processing and calculation, the vehicle travel displacement can be obtained. Combined with the ground basic data and station data, the relative position of the vehicle can be determined.

[0008] Preferably, the Ethernet is connected to the vehicle-mounted data transmission module, and the vehicle-mounted data transmission module is connected to the computer interlocking through the interface server. Computer interlocking is a technology that automatically realizes the control between the turnouts, signal machines and routes in the station, and is an important guarantee facility necessary to ensure the safe and efficient operation of the railway system. The ground interface server is connected to the computer interlocking to obtain the station information in the interlocking data, and the vehicle-mounted data transmission module and the ground interface server use a self-organizing network to exchange data.

[0009] Preferably, the ground equipment further comprises a plurality of positioning beacons, which are arranged along the travel path of the electric vehicle. By acquiring the information of the positioning beacons, the absolute position of the electric vehicle can be determined; by the speed sensor, the relative position of the vehicle can be calculated, and the vehicle position can be located and corrected.

[0010] Preferably, the positioning query antenna obtains the positioning beacon data, and the positioning query antenna transmits it to the core board via RS422. By giving an early warning in advance within a certain distance range, the electric passenger car is reminded to slow down or stop before the signal machine, and not to rush into the unopened access road, thereby effectively preventing the accidents of rushing in, rushing out or squeezing during driving and operation. By setting early warning points and emergency parking points at key locations such as the lead-out line, the end line, and the maintenance depot, accidents such as derailment caused by collisions between electric passenger cars and equipment can be prevented.

[0011] Preferably, the plurality of positioning beacons have their own unique numbers, and the positioning beacons are set in the center of the ground track at the key control point. The positioning beacon is set in the center of the ground track at the key control point, and adopts passive RFID technology. Each positioning beacon has its own unique number. When making ground basic data, the positioning beacon number and its corresponding position and other information of the positioning beacon are added to the basic data. When the electric passenger car passes a certain positioning beacon, the positioning query antenna at the bottom of the vehicle automatically identifies the number information of the current beacon through the radio frequency signal, and the system's location query unit matches the beacon number with the existing information in the basic data, obtains the location information of the current beacon, and thus determines the absolute position of the vehicle.

[0012] Preferably, the driving safety monitoring system further includes an independent display screen and a speaker. The independent display screen is a human-computer interaction unit of the system, which is used to display station and vehicle information, including signals, speed, speed limit, distance, protection type, signal name, displacement, date and time; display station map, signal, turnout, route status, wireless communication status and station auxiliary information, etc. In addition, the system has a real-time recording function for operation data. Users can transcribe the operation records to the ground computer through a dedicated dumper to realize information analysis of driver operations, vehicle operation status, etc.

[0013] The beneficial effects of the utility model are as follows: when a vehicle passes over a positioning beacon, the vehicle is positioned by obtaining beacon information through a query antenna through a position query unit, and the operation monitoring system locates the position in the basic data according to the beacon number, thereby determining the absolute position of the vehicle; the running distance is calculated through an existing speed sensor to determine the relative position of the vehicle, and the absolute position and relative position are combined to achieve positioning and correction of the vehicle position; by obtaining the precise position of the electric passenger car and the position of the ground control point, combined with the ground basic data and the station field data, comprehensive processing is performed to form safety protection information, thereby achieving the functions of preventing overtaking, overtaking and collision prevention during the operation of the electric passenger car, solving the problem of lack of effective technical protection means for the operation of electric passenger cars in vehicle sections, and reducing the risk of driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a principle connection structure diagram of the utility model.

[0015] Figure 2 The utility model is a schematic diagram of the principle connection structure of a vehicle safety monitoring system.

[0016] Figure 3 The utility model is a principle connection circuit diagram.

[0017] Figure 4 The utility model discloses an RS422 communication circuit diagram.

[0018] Figure 5 The utility model discloses a speed acquisition circuit diagram. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the technical solution of the present invention is further described in detail below through embodiments and in combination with the accompanying drawings. It should be understood that the specific implementation method described here is only an optimal embodiment of the present invention, which is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] The vehicle is positioned by obtaining beacon information through the query antenna through the position query unit, and the operation monitoring system locates the position in the basic data according to the beacon number, thereby determining the absolute position of the vehicle; the running distance is calculated through the existing speed sensor to determine the relative position of the vehicle, and the absolute position and relative position are combined to achieve positioning and correction of the vehicle position; by obtaining the precise position of the electric passenger car and the position of the ground control point, combined with the ground basic data and the station data, comprehensive processing is performed to form safety protection information, and the functions of anti-overtaking, anti-overtaking and anti-collision in the operation of the electric passenger car are realized, which solves the problem of lack of effective technical protection means for the operation of electric passenger cars in vehicle depots and reduces the risk of driving safety.

[0021] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the operations (or steps) as sequential processes, many of the operations (or steps) therein can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the drawings; the process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0022] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0023] Embodiment: This embodiment is an auxiliary protection device for shunting operation of electric passenger car depot, such as Figure 1 As shown, it includes vehicle-mounted equipment and ground equipment. The vehicle-mounted equipment includes a driving safety monitoring system and a vehicle-mounted data transmission module and a speed sensor respectively connected thereto, and also includes a positioning query antenna. The ground equipment includes a computer interlock and an interface server connected thereto. The driving safety monitoring system includes a core board and a single-chip microcomputer, and also includes a power module respectively connected to the core board and the single-chip microcomputer. The core board is respectively connected to RS422 and Ethernet. The external 110V is powered by the system after power conversion. The positioning query antenna transmits the acquired positioning beacon data to the internal core board via RS422; the data transmission module sends the received interlocking data to the core board via the Ethernet module; the single-chip microcomputer module collects the speed sensor signal, and transmits it to the core board via CAN after conversion; finally, the core board processes all the received data, and the data information is displayed on an independent display screen.

[0024] The input end of the single-chip microcomputer is connected to the speed sensor, and the output end of the single-chip microcomputer is connected to the core board via CAN. The speed sensor is used to collect vehicle speed information. The system obtains the sensor speed signal through the vehicle orthogonal signal speed signal interface. After processing and calculation, the vehicle displacement can be obtained. Combined with the ground basic data and station data, the relative position of the vehicle can be determined.

[0025] The Ethernet is connected to the on-board data transmission module, which is connected to the computer interlocking through the interface server. Computer interlocking is a technology that automatically realizes the control between the turnouts, signal machines and routes in the station, and is an important guarantee facility necessary to ensure the safe and efficient operation of the railway system. The ground interface server is connected to the computer interlocking to obtain the station information in the interlocking data. The on-board data transmission module and the ground interface server use a self-organizing network to exchange data.

[0026] The ground equipment also includes several positioning beacons, which are set along the driving path of the electric passenger car. By obtaining the information of the positioning beacon, the absolute position of the electric passenger car can be determined; through the speed sensor, the relative position of the vehicle can be calculated, and the vehicle position can be located and corrected. Several positioning beacons have their own unique numbers, and the positioning beacons are set in the center of the ground track at the key control point. The positioning beacon is set in the center of the ground track at the key control point, using passive RFID technology. Each positioning beacon has its own unique number. When making the ground basic data, the positioning beacon number of the positioning beacon and its corresponding position and other information are added to the basic data. When the electric passenger car passes a certain positioning beacon, the positioning query antenna at the bottom of the vehicle automatically identifies the number information of the current beacon through the radio frequency signal. The system's location query unit matches the beacon number with the existing information in the basic data, obtains the location information of the current beacon, and thus determines the absolute position of the vehicle.

[0027] The positioning query antenna obtains the positioning beacon data, and the positioning query antenna transmits it to the core board via RS422. By giving early warning within a certain distance, the electric passenger car is reminded to slow down or stop before the signal machine, and not to rush into the unopened access road, so as to effectively prevent the accidents of rushing in, rushing out or squeezing during driving and operation. By setting early warning points and emergency stop points at key locations such as the lead-out line, the end line, and the maintenance depot, it can prevent accidents such as derailment caused by electric passenger cars colliding with equipment.

[0028] The driving safety monitoring system also includes an independent display screen and speakers. The independent display screen is the human-computer interaction unit of the system, which is used to display station and vehicle information, including signals, speed, speed limit, distance, protection type, signal name, displacement, date and time; display station map, signal, turnout, route status, wireless communication status and station auxiliary information, etc. In addition, the system has the function of real-time recording of operation data. Users can transcribe the operation records to the ground computer through a special dumper to realize the analysis of driver operation, vehicle operation status and other information.

[0029] Example

[0030] The block diagram of the driving safety monitoring system is as follows Figure 2 As shown in the figure, the external 110V is used to power the system after power conversion. The positioning query antenna transmits the acquired positioning beacon data to the internal core board through RS422; the data transmission module sends the received interlocking data to the core board through the Ethernet module; the single-chip microcomputer module collects the speed sensor signal, and after conversion, transmits it to the core board through CAN; finally, the core board processes all the received data, and the data information is displayed on an independent display screen.

[0031] The computer interlocking is a technology that automatically realizes the control between the turnouts, signal machines and routes in the station. It is an important guarantee facility necessary to ensure the safe and efficient operation of the railway system. The ground interface server is connected to the computer interlocking to obtain the station information in the interlocking data. The on-board data transmission module and the ground interface server use a self-organizing network to exchange data.

[0032] The positioning beacon is set in the center of the ground track at the key control point, using passive RFID technology. Each positioning beacon has its own unique number. When making ground basic data, the positioning beacon number and its corresponding position and other information of the positioning beacon are added to the basic data. When the electric passenger car passes over a certain positioning beacon, the positioning query antenna at the bottom of the vehicle automatically identifies the number information of the current beacon through the radio frequency signal. The system's location query unit matches the beacon number with the existing information in the basic data, obtains the location information of the current beacon, and thus determines the absolute position of the vehicle;

[0033] The speed sensor is used to collect vehicle speed information. The system obtains the sensor speed signal through the vehicle orthogonal signal speed signal interface. After processing and calculation, the vehicle travel displacement can be obtained. Combined with the ground basic data and station data, the relative position of the vehicle can be determined.

[0034] The independent display screen is the human-computer interaction unit of the system, which is used to display station and vehicle information, including signal, speed, speed limit, distance, protection type, signal name, displacement, date and time; display station map, signal, turnout, route status, wireless communication status and station auxiliary information, etc. In addition, the system has the function of real-time recording of operation data. Users can transcribe the operation record to the ground computer through a special dumper to realize the analysis of driver operation, vehicle operation status and other information.

[0035] The utility model provides an electric passenger car depot operation monitoring system. When a vehicle passes over a positioning beacon, the position query unit obtains the beacon information through the query antenna to realize vehicle positioning. The operation monitoring system locates the position in the basic data according to the beacon number, thereby determining the absolute position of the vehicle. The relative position of the vehicle can be determined by calculating the running distance through the existing speed measuring sensor. Combining the absolute position and the relative position, the vehicle position can be located and corrected. By obtaining the precise position of the electric passenger car and the position of the ground control point, combining the ground basic data and the station field data, comprehensive processing is performed to form safety protection information, and the functions of anti-overtaking, anti-overtaking and anti-collision in the operation of the electric passenger car are realized. The problem of the current lack of effective technical protection means for the operation of electric passenger cars in the depot can be solved, and the driving safety risk can be reduced.

[0036] The utility model can achieve the following effects or functions:

[0037] 1. By obtaining the information of the positioning beacon, the absolute position of the electric passenger car can be determined;

[0038] 2. The speed sensor can calculate the relative position of the vehicle, and locate and correct the vehicle position;

[0039] 3. By connecting to the computer interlocking system, real-time station information, including signal status, etc.

[0040] 4. Through the system human-computer interaction interface, the vehicle and station information is intuitively displayed to assist crew members in improving their operating capabilities.

[0041] 5. Based on the generated target-distance control curve and the braking performance of the electric vehicle, the system calculates the normal braking speed limit and emergency braking speed limit of the electric vehicle in real time, and monitors the operation of the electric vehicle according to the normal braking speed limit curve. When the vehicle speed approaches the speed limit value, the driver is prompted to control the operating speed.

[0042] 6. By issuing early warnings within a certain distance, electric passenger cars are reminded to slow down or stop at traffic lights and not to rush into unopened routes, thereby effectively preventing accidents such as rushing in, rushing out or squeezing during driving and operation.

[0043] 7. By setting up early warning points and emergency stop points at key locations such as the lead-out line, dead end line, and maintenance depot, accidents such as derailment caused by electric passenger cars colliding with equipment can be prevented.

[0044] 8. Through real-time recording of the system, the operation records can be dumped to realize the analysis of driver operation, vehicle operation status and other information.

[0045] The specific embodiments described herein are merely examples of the spirit of the present invention. The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that technicians in the technical field to which the present invention belongs can make various modifications or supplements to the described specific embodiments or replace them in a similar manner, but will not deviate from the spirit of the present invention or exceed the scope defined in the attached claims. For ordinary technicians in this field, multiple deformations and improvements can also be made without departing from the concept of the present invention. Therefore, the scope of protection of the patent of the present invention shall be based on the attached claims.

Claims

1. An auxiliary protection device for shunting operation in a train depot, comprising on-board equipment and ground equipment, characterized in that: The vehicle-mounted equipment includes a driving safety monitoring system and a vehicle-mounted data transmission module and a speed sensor respectively connected thereto, and also includes a positioning query antenna. The ground equipment includes a computer interlock and an interface server connected thereto.

2. The auxiliary protection equipment for shunting operation in electric passenger car depot according to claim 1 is characterized in that: The vehicle driving safety monitoring system comprises a core board and a single chip microcomputer, and also comprises a power supply module connected to the core board and the single chip microcomputer respectively. The core board is connected to RS422 and Ethernet respectively.

3. The auxiliary protection equipment for shunting operation in electric passenger car depot according to claim 2 is characterized in that: The input end of the single chip microcomputer is connected to the speed sensor, and the output end of the single chip microcomputer is connected to the core board via CAN.

4. The auxiliary protection equipment for shunting operation in electric passenger car depot according to claim 2 or 3, characterized in that: The Ethernet is connected to a vehicle-mounted data transmission module, and the vehicle-mounted data transmission module is interlocked with a computer via an interface server.

5. The auxiliary protection equipment for shunting operation in electric passenger car depot according to claim 2 is characterized in that: The ground equipment also includes a plurality of positioning beacons, and the plurality of positioning beacons are arranged along the travel path of the electric passenger car.

6. The auxiliary protection equipment for shunting operation in electric passenger car depot according to claim 5 is characterized in that: The positioning query antenna obtains the positioning beacon data, and the positioning query antenna transmits the data to the core board via RS422.

7. The auxiliary protection equipment for shunting operation in electric passenger car depot according to claim 6 is characterized in that: The plurality of positioning beacons have their unique numbers, and the positioning beacons are arranged in the center of the ground track at the key control point.

8. An auxiliary protection device for shunting operations in electric passenger car depots according to claim 1 or 2, It is characterized in that The driving safety monitoring system also includes an independent display screen and a speaker.

Images