CN115535034A

CN115535034A - Motor car train position tracking system

Info

Publication number: CN115535034A
Application number: CN202211066032.2A
Authority: CN
Inventors: 王志勤; 赵军; 韩金钊; 曹凯; 王根壮; 高志军; 刘峰; 赵婧怡; 戴双江
Original assignee: Zhengzhou Zhiliang Electronic Science & Technology Co ltd
Current assignee: Zhengzhou Zhiliang Electronic Science & Technology Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-12-30

Abstract

The invention relates to a position tracking system of a bullet train, which comprises a train number identification device, a center acquisition device, a machine room monitoring device and wheel sensors, wherein the center acquisition device is connected with the machine room monitoring device through a network, the machine room monitoring device is in communication connection with the train number identification device, the train number identification device comprises AEI reading equipment and image identification equipment, the AEI reading equipment and the image identification equipment are arranged at the entrance of a station track, the AEI reading equipment is arranged in the station track, the image identification equipment is arranged at one side of the station track, each station track is provided with the wheel sensor, each wheel sensor comprises first magnetic steel and second magnetic steel, the first magnetic steel is arranged at the entrance of the station track, and the second magnetic steel is arranged at the exit of the station track. The invention realizes the fine management of the motor train in the motor train overhaul field, has high automation degree, and improves the management level and the management efficiency of the motor train while ensuring the accurate tracking of the position of the motor train.

Description

Motor car train position tracking system

Technical Field

The invention relates to the technical field of railway equipment, in particular to a bullet train position tracking system.

Background

Passenger transport is the busiest liquid level in railway transportation, so higher requirements are continuously put forward for improving the utilization efficiency of passenger cars, and the passenger cars need to be frequently allocated particularly in peak periods of passenger flow such as spring transportation and summer periods, thereby bringing great challenges to the management of motor trains. At present, each vehicle section and a vehicle manufacturing and repairing factory use a technical management information system (KMIS) of a railway passenger car to carry out unified management on plan, scheduling, overhauling and the like of the passenger car, but the following defects exist: (1) The system and the basic data source are both input manually, and the efficiency is low. And (2) the manual data entry is easy to make mistakes and lacks of real-time property. (3) The management efficiency is low, the production operation is lack of real-time performance, and unnecessary loss is brought to a certain degree.

Disclosure of Invention

The invention aims to provide a bullet train position tracking system to solve the problems of bullet train management at present.

In order to achieve the purpose, the invention adopts the following technical scheme:

the bullet train position tracking system comprises a train number identification device, a center acquisition device, a machine room monitoring device and wheel sensors, wherein the center acquisition device is connected with the machine room monitoring device through a network, and the machine room monitoring device is in communication connection with the train number identification device; the method comprises the steps that a car number recognition device is installed on each station track of a motor car overhaul field and comprises an AEI reading device and an image recognition device, the AEI reading device and the image recognition device are arranged at the entrance of the station track, the AEI reading device is arranged in the station track, the image recognition device is arranged on one side of the station track, the AEI reading device is used for reading AEI labels on motor cars to obtain car number information of the motor cars, and the image recognition device is used for carrying out image recognition on the car numbers of the motor car bodies to obtain the car number information of the motor cars when the AEI reading device cannot read the AEI labels on the motor cars; all be provided with wheel sensor on each thigh way, wheel sensor includes first magnet steel and second magnet steel, first magnet steel sets up the entrance at the thigh way, first magnet steel with car number identification equipment communication connection, the second magnet steel sets up the exit at the thigh way, second magnet steel and central collection system communication connection.

Further preferably, the AEI reading apparatus comprises a housing bottom plate, a CPU board, a RF board, a cover plate, a radiation board and a glass reinforced plastic cover, the CPU board and the RF board are disposed in the housing bottom plate, the cover plate is connected with the bottom plate, the radiation board is electrically connected with the RF board and the CPU board through a connecting rod, the glass reinforced plastic cover is connected with the housing bottom plate, and the radiation board is located in the glass reinforced plastic cover; the CPU board is connected with the RF board, a mounting groove is arranged on the bottom plate of the shell, and the CPU board and the RF board are arranged in the mounting groove; the edge of mounting groove is equipped with buckler and silica gel sealing strip.

Further preferably, the AEI reading equipment is installed on a track through an installation rack, the installation rack comprises two bottom supporting plates, two upper supporting plates and a cable protection box, the two bottom supporting plates are arranged at intervals and are clamped at the bottoms of two adjacent sleepers, the upper supporting plates and the bottom supporting plates are correspondingly arranged and erected at the tops of the two adjacent sleepers, the upper supporting plates and the bottom supporting plates are connected through bolts, two ends of the cable protection box are fixedly connected with the upper supporting plates, and two ends of the upper supporting plates are bent and arranged to be conveniently clamped with the sleepers; the cable protection box is characterized in that shell mounting plates are arranged at two ends of the shell bottom plate and connected with the cable protection box, and steel wire rope shock absorbers are arranged between the shell mounting plates and the cable protection box.

Preferably, the image recognition device comprises video cameras, the video cameras are arranged on one side of the station tracks, video cameras are arranged on the side edges of the station tracks, the video cameras are connected with light supplementing devices, the video cameras are connected with the regional bus concentrator through a CAN bus, and the regional bus concentrator is connected with the machine room monitoring device.

Further preferably, the distance between the video camera and the bullet train is 1.5 meters, and the visual angle of the video camera is 70-90 degrees.

Preferably, the number of the first magnetic steels is two, and the two first magnetic steels are respectively arranged on the two tracks; the first magnetic steel is connected with the vehicle number identification device through a junction box.

Preferably, the number of the second magnetic steels is two, and the two second magnetic steels are respectively arranged on the two tracks; the second magnetic steel is connected with the central acquisition device through a junction box.

Further preferably, the wheel sensor further comprises third magnetic steel, the third magnetic steel is arranged in the middle of the track, and the third magnetic steel is connected with the central acquisition device.

The invention has the beneficial effects that:

the invention relates to a motor train and train position tracking system, which judges whether a motor train enters the field or not through first magnetic steels arranged at entrances of all track roads, when the motor train enters the field, the first magnetic steels transmit signals to AEI reading equipment, the AEI reading equipment is started to read AEI labels on the motor train, and when the AEI reading equipment can read signals reflected by the AEI labels, the signals are transmitted to a machine room monitoring device, so that the machine room monitoring device can display track positions and train number information of the current motor train, position management of the motor train is facilitated, when the AEI reading equipment cannot read the signals reflected by the AEI labels, the signals are transmitted to an image recognition device, the image recognition device is started to perform image acquisition and recognition on train numbers printed on a motor train body, and the recognized train number information is transmitted to the machine room monitoring device, so that the motor train can be accurately managed and tracked in the maintenance field, and the management efficiency of the motor train is improved.

Drawings

FIG. 1 is a schematic block diagram of a railcar train position tracking system of the present invention;

FIG. 2 is a schematic diagram of the AEI reading device of the railcar train position tracking system of the present invention;

FIG. 3 is a schematic structural view (perspective view) of the AEI reading device installation position in the railcar train position tracking system of the present invention;

FIG. 4 is a schematic illustration (exploded view) of the AEI reader installation location in the railcar track system in accordance with the present invention;

fig. 5 is a schematic diagram of an image recognition device in the railcar train position tracking system of the present invention.

Names corresponding to the marks in the figure:

1. the car number identification equipment, 11, AEI reading equipment, 111, the casing bottom plate, 112, the CPU board, 113, the RF board, 114, the apron, 115, the radiation board, 116, the glass steel casing, 12, image recognition equipment, 2, central collection system, 3, computer lab monitoring device, 4, the thigh, 5, first magnet steel, 6, the second magnet steel, 7, the mounting bracket, 71, the bottom sprag board, 72, upper sprag board, 73, the cable guard box, 74, the bolt, 75, the sleeper, 8, the third magnet steel.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1 of the invention:

the motor train position tracking system in the embodiment realizes automatic identification and position tracking of the number of the motor train when the motor train enters the overhaul field through the cooperation of the number identification equipment, the center acquisition device, the machine room monitoring equipment and the wheel sensor.

Specifically, as shown in fig. 1, the bullet train position tracking system includes a train number identification device 1, a central collection device 2, a machine room monitoring device 3 and wheel sensors, the central collection device 2 is connected to the machine room monitoring device 3 through a network, and the machine room monitoring device 3 is connected to the train number identification device 1 through communication.

In the embodiment, the car number identification device 1 is installed on each station track 4 of a motor car overhaul field, the car number identification device 1 comprises an AEI reading device 11 and an image identification device 12, the AEI reading device 11 and the image identification device 12 are arranged at the entrance of the station track 4, the AEI reading device 11 can read AEI labels installed at the bottom of a carriage of a motor car to obtain car number information, and because some motor cars do not use the AEI labels or the AEI labels are damaged, in the embodiment, the image identification device 12 is used for carrying out image identification on the car numbers on the body of the motor cars to obtain the car number information of the motor cars, so that the car number information which cannot be obtained by the AEI reading device 11 can be conveniently obtained and used by a position tracking system.

In the embodiment, the AEI reading device 11 is arranged in the station track 4, the image recognition device 12 is arranged on one side of the station track 4, when the motor car moves on the station track 4, the AEI reading device 11 can obtain a car number signal on an AEI label arranged at the bottom of the motor car, and the image recognition device photographs the side surface of the compartment of the motor car in the moving process of the motor car so as to obtain the car number printed on the side surface of the compartment of the motor car.

Simultaneously, all be equipped with the wheel sensor on every track 4, the wheel sensor is used for detecting whether the motor car passes through, in this embodiment, the wheel sensor includes first magnet steel 5 and second magnet steel 6, first magnet steel 5 sets up the entrance at track 4, and simultaneously, first magnet steel 5 and car number identification equipment 1 communication connection, when the motor car wheel pressed first magnet steel 5, first magnet steel 5 transmitted the signal for car number identification equipment 1, car number identification equipment 1 judges that the motor car arrives, carry out the car number identification process.

The second magnet steel 6 is arranged at an outlet of the track 4, the second magnet steel 6 is in communication connection with the central acquisition device 2, when the wheel of the motor car presses the second magnet steel 6, the second magnet steel 6 transmits a signal to the central acquisition device 2, and the central acquisition device 2 judges whether the motor car leaves.

Through above setting, can detect the arrival of motor car to gather the number of a car information, can acquire the 4 information in the station track of motor car in the motor car overhaul field and the number of a car information that corresponds, be convenient for track the position of motor car, improve the management level of motor car.

In the present embodiment, as shown in fig. 2, the AEI reading apparatus 11 includes a housing bottom plate 111, a CPU plate 112, an RF plate 113, a cover plate 114, a radiation plate 115, and a glass reinforced plastic cover 116, wherein the CPU plate 112 and the RF plate 113 are disposed in the housing bottom plate 111, the cover plate 114 is connected to the bottom plate, the radiation plate 115 is electrically connected to the RF plate 113 and the CPU plate 112 through a connection rod, the glass reinforced plastic cover 116 is connected to the housing bottom plate 111, the radiation plate 115 is disposed in the glass reinforced plastic cover 116, and the CPU plate 112 is connected to the RF plate 113. When a motor car provided with the AEI label passes through, the radiation plate 115 transmits a microwave carrier signal to the AEI label, receives a modulated wave signal reflected by the AEI label, performs modulation, decoding, processing and discrimination, and transmits the processed label information to the machine room monitoring device 3 for vehicle management.

In this embodiment, the housing bottom plate 111 is provided with mounting grooves, the CPU board 112 and the RF board 113 are disposed in the mounting grooves, and after the CPU board 112 and the RF board 113 are mounted, the CPU board 112 and the RF board 113 are sealed by the cover plate 114.

Since the AEI reading device 11 is mostly disposed on the open-air track 4, in this embodiment, the CPU board 112 and the RF board 113 are further sealed by disposing a waterproof groove and a silica gel sealing strip on the edge of the mounting groove, so as to ensure the waterproof performance of the device.

As shown in fig. 3 and 4, AEI reading device 11 is installed on track 4 through mounting bracket 7, mounting bracket 7 includes bottom support plate 71, upper support plate 72 and cable protection box 73, bottom support plate 71 has two, two bottom support plates 71 are set up at interval, be used for the joint in two adjacent sleepers 75 bottoms, upper support plate 72 sets up with bottom support plate 71 relatively, erect two adjacent sleepers 75 tops, connect through bolt 74 between upper support plate 72 and the bottom support plate 71, the both ends and the upper support plate 72 fixed connection of cable protection box 73, the both ends of upper support plate 72 are buckled and are set up, be convenient for be connected with sleeper 75 joint, improve fixed effect, simultaneously, be equipped with the casing mounting panel at the both ends of casing bottom plate 111, the casing mounting panel is connected with cable protection box 73.

When the AEI reading apparatus 11 is mounted, the bottom support plate 71 and the upper support plate 72 are connected by the bolts 74, then both ends of the cable shield 73 are fixed to the upper support plate 72, and the AEI reading apparatus 11 is fixed to the cable shield 73 by the housing mounting plate, thereby completing the mounting of the AEI reading apparatus 11.

To avoid the vibration from interfering with the AEI reading device 11, a wire rope damper is provided between the housing mounting plate and the cable guard box 73 in this embodiment.

As shown in fig. 5, the image recognition device 12 includes a video camera, the video camera is disposed on one side of each track 4, the video camera is disposed on the side of each track 4 and is used for performing image recognition on the number printed on the side of the compartment of the bullet train, each video camera is connected to the area bus collector through a CAN bus, and the area bus collector is connected to the machine room monitoring device 3.

In this embodiment, the video camera may be a camera of an embedded linux platform, the recognition algorithm is operated in the embedded system to recognize the car number, and the car number information is transmitted to the machine room monitoring device 3 for use, or the network camera is adopted to transmit the acquired image to the machine room monitoring device 3, and the machine room monitoring device 3 performs recognition operation and then outputs a recognition result.

Meanwhile, the video camera is further connected with a light supplementing device, so that the ambient light intensity can be improved, and the image acquisition quality is improved.

In actual work, the speed of the motor train entering and exiting the overhaul field is less than 40 km/h (namely 11 m/s), the train number on the head of the motor train consists of serial numbers and sub-models, such as CRH2-006A, wherein the CRH is a head prefix mark, 2 is a train type mark, and the recognized train number is expanded into 12-bit letters and numbers, such as CRH2-0123456A, in consideration of the increase of subsequent serial numbers. The number of the bullet train body is a combination of letters and numbers, such as ZY105900, ZY represents a train car model, 1 represents a train car type, and 05900 represents a train number, and the existing 6-bit number is expanded into a 12-bit letter and number group, such as ZTC 01234567A, in consideration of subsequent requirements.

The adjusted train numbers of the head and the body of the bullet train are about 1 meter in length, namely, the time for the train numbers on the body of the bullet train to pass through the camera is about 90ms, and 3-5 pictures with the train numbers need to be taken within 90ms for identification.

In this embodiment, the distance between the video camera and the motor train unit is 1.5 meters, and in order to ensure that the video camera can complete shooting, the visual angle of the camera is 70 degrees.

In this embodiment, the first magnetic steels 5 are provided with two and respectively disposed on two tracks, the first magnetic steels 5 are connected to the car number identification device 1 through the junction box, and meanwhile, the second magnetic steels 6 are provided with two and respectively disposed on the two tracks, and the second magnetic steels 6 are connected to the central acquisition device 2 through the junction box.

Simultaneously, wheel sensor still includes third magnet steel 8, and third magnet steel 8 sets up the 4 intermediate positions in thigh way, and third magnet steel 8 is connected with central collection system 2, through setting up third magnet steel 8, can distinguish this EMUs and stop a district or B district of certain thigh way 4 on the earth to another train of scheduling arrangement reentrant.

In this embodiment, the AEI reading device 11 is in communication connection with the image recognition device, and when the AEI reading device 11 can receive the carrier signal reflected by the AEI tag, the AEI reading device does not transmit a signal to the image recognition device 12, and the image recognition device 12 does not perform image acquisition, and when the AEI reading device 11 cannot receive the carrier signal reflected by the AEI tag, the AEI reading device transmits a signal to the image recognition device 12, and the image recognition device 12 takes a picture to acquire the number of the motor car.

The working principle is as follows:

when a motor car enters an overhaul station, wheels press the first magnetic steel 5, signals of the first magnetic steel 5 are transmitted to the AEI reading device 11 through a cable, when a car receiving program in the AEI reading device 11 judges that the motor car arrives, the motor car immediately enters a car receiving state, microwave carrier signals are transmitted through the radiation plate 115, if an AEI label is arranged on the motor car and the label is not damaged, the AEI label can reflect a wave modulation signal, the AEI reading device 11 receives the reflected wave modulation signal of the AEI label, then the modulation, decoding, processing and judging are carried out, processed label information is transmitted to the machine room monitoring device 3, when the motor car does not have the AEI label or the label is damaged, the AEI label cannot reflect the wave modulation signal, the AEI reading device 11 cannot receive the reflected wave modulation signal of the AEI label, the AEI reading device 11 sends signals to the video camera at the moment, the video camera is started, the image acquisition of the car numbers printed on the head and the body of the motor car is prepared, and the car number information identified according to the image is displayed in the monitoring device 3, so that the car number and the track the lane number of 4 and track the station.

According to the bullet train position tracking system, the bullet train in the bullet train overhaul field is finely managed through the cooperation of the train number identification device, the center acquisition device, the machine room monitoring device and the wheel sensor, the automation degree is high, the traditional manual input is replaced, the position of the bullet train is accurately tracked, and the bullet train management level and efficiency are improved.

In other embodiments, the viewing angle of the camera is 80 degrees.

In other embodiments, the viewing angle of the camera is 90 degrees.

Claims

1. A motor car train position tracking system which characterized in that: the system comprises a vehicle number identification device, a central acquisition device, a machine room monitoring device and wheel sensors, wherein the central acquisition device is connected with the machine room monitoring device through a network, and the machine room monitoring device is in communication connection with the vehicle number identification device; the method comprises the steps that a car number recognition device is installed on each station track of a motor car overhaul field, the car number recognition device comprises an AEI reading device and an image recognition device, the AEI reading device and the image recognition device are arranged at the entrance of the station track, the AEI reading device is arranged in the station track, the image recognition device is arranged on one side of the station track, the AEI reading device is used for reading AEI labels on motor cars to obtain car number information of the motor cars, and the image recognition device is used for carrying out image recognition on car numbers on bodies of the motor cars to obtain the car number information of the motor cars when the AEI reading device cannot read the AEI labels on the motor cars; all be provided with wheel sensor on each thigh way, wheel sensor includes first magnet steel and second magnet steel, first magnet steel sets up the entrance at the thigh way, first magnet steel with car number identification equipment communication connection, the second magnet steel sets up the exit at the thigh way, second magnet steel and central collection system communication connection.

2. The railcar train position tracking system of claim 1, wherein: the AEI reading device comprises a housing bottom plate, a CPU plate, an RF plate, a cover plate, a radiation plate and a glass fiber reinforced plastic cover, wherein the CPU plate and the RF plate are arranged in the housing bottom plate, the cover plate is connected with the bottom plate, the radiation plate is electrically connected with the RF plate and the CPU plate through a connecting rod, the glass fiber reinforced plastic cover is connected with the housing bottom plate, and the radiation plate is positioned in the glass fiber reinforced plastic cover; the CPU board is connected with the RF board, a mounting groove is formed in the bottom plate of the shell, and the CPU board and the RF board are arranged in the mounting groove; the edge of mounting groove is equipped with capillary groove and silica gel sealing strip.

3. The railcar train position tracking system of claim 2, wherein: the AEI reading equipment is installed on a track through an installation rack, the installation rack comprises two bottom supporting plates, an upper supporting plate and a cable protection box, the two bottom supporting plates are arranged at intervals and clamped at the bottoms of two adjacent sleepers, the upper supporting plate and the bottom supporting plate are correspondingly arranged and erected at the tops of the two adjacent sleepers, the upper supporting plate and the bottom supporting plate are connected through bolts, two ends of the cable protection box are fixedly connected with the upper supporting plate, and two ends of the upper supporting plate are bent and arranged to be conveniently clamped with the sleepers; the cable protection box is characterized in that shell mounting plates are arranged at two ends of the shell bottom plate and connected with the cable protection box, and steel wire rope shock absorbers are arranged between the shell mounting plates and the cable protection box.

4. The railcar train position tracking system of claim 1, wherein: the image recognition equipment comprises video cameras, the video cameras are arranged on one side of the station tracks, video cameras are arranged on the side edges of the station tracks, the video cameras are connected with light supplementing equipment, the video cameras are connected with a regional bus concentrator through a CAN bus, and the regional bus concentrator is connected with the machine room monitoring device.

5. The railcar train position tracking system of claim 4, wherein: the distance between the video camera and the motor train is 1.5 meters, and the visual angle of the video camera is 70-90 degrees.

6. The railcar train position tracking system of claim 1, wherein: two first magnetic steels are arranged and are respectively arranged on the two tracks; the first magnetic steel is connected with the car number identification device through the junction box.

7. The railcar train position tracking system of claim 6, wherein: two second magnetic steels are arranged and are respectively arranged on the two tracks; the second magnetic steel is connected with the central acquisition device through a junction box.

8. The railcar train position tracking system of claim 7, wherein: the wheel sensor further comprises third magnetic steel, the third magnetic steel is arranged in the middle of the track, and the third magnetic steel is connected with the center collecting device.