阅读说明：本技术 一种列车连挂定位检测系统及方法 (Train coupling positioning detection system and method ) 是由 赵敏 王崇杰 张子锋 张文乾 张林智 王帅 林建辉 杨林 李涛 王永中 刘平燕 于 2020-06-02 设计创作，主要内容包括：本发明公开了一种列车连挂定位检测系统,包括监控中心、司机室显示终端、挂车/被挂车位置检测装置及卫星定位地面基站；监控中心是一个挂车作业分析运营平台,通过该平台可以实时监控列车当前和历史的作业信息；司机室显示终端用于司机登录、站场轨道分布显示、挂车/被挂车在轨道上的位置显示、机车速度显示、机车长度、轨道几何形状、挂车和被挂车距离的显示,并将信息通过无线传输通讯,实时发送到监控中心；挂车/被挂车位置检测装置安装在作业火车上,用于接收卫星信号,同来实时检测两列车之间的距离以及挂车的速度,并通过无线通讯设备发送到监控中心；其优点在于,实现了铁路站场列车连挂作业时的数据信息自动检测,降低人工作业风险。(The invention discloses a train coupling positioning detection system, which comprises a monitoring center, a cab display terminal, a trailer/towed vehicle position detection device and a satellite positioning ground base station, wherein the monitoring center is connected with the cab display terminal; the monitoring center is a trailer operation analysis operation platform, and current and historical operation information of the train can be monitored in real time through the platform; the driver cab display terminal is used for driver login, station track distribution display, trailer/towed vehicle position display on the track, locomotive speed display, locomotive length, track geometry, trailer and towed vehicle distance display, and transmits information to the monitoring center in real time through wireless transmission communication; the trailer/towed vehicle position detection device is arranged on an operation train and used for receiving satellite signals, detecting the distance between two trains and the speed of the trailer in real time and sending the distance and the speed to a monitoring center through wireless communication equipment; the method has the advantages of realizing automatic detection of data information during train hitching operation of the railway station yard and reducing the risk of manual operation.)

1. A train coupling positioning detection system is characterized by comprising a monitoring center, a cab display terminal, a trailer/towed vehicle position detection device and a satellite positioning ground base station;

the monitoring center is a trailer operation analysis operation platform, and current and historical operation information of the train can be monitored in real time through the platform;

the driver cab display terminal is used for driver login, station track distribution display, trailer/towed vehicle position display on the track, locomotive speed display, locomotive length, track geometry, trailer and towed vehicle distance display, and sends information to the monitoring center in real time through wireless communication equipment;

the trailer/towed vehicle position detection device is arranged on an operation train and used for receiving satellite signals, detecting the distance between two trains and the speed of the trailer in real time and sending the distance and the speed to a monitoring center through wireless communication equipment;

the satellite positioning ground base station is used for receiving and transmitting data.

2. The train coupling positioning detection system according to claim 1, further comprising a mobile terminal, wherein the mobile terminal is provided with a corresponding APP, and the mobile terminal APP is used for monitoring and querying the operation condition of related personnel from a monitoring center at any time and any place.

3. The train coupling positioning detection system according to claim 1, wherein the cab display terminal is provided with a positioning device and an error prevention device; the positioning device can detect the self coordinates of the cab display terminal, the current coordinates of the trailer, the track geometry and the length information of the locomotive; the anti-misoperation device is used for reminding a driver of preventing mistaken touch operation.

4. The train coupling positioning detection system according to claim 1, wherein the trailer/towed vehicle position detection device is two detection devices with completely the same function, and the functions of trailer real-time position detection, distance measurement, speed detection and data transmission are realized;

the position detection adopts a positioning mode of 'GPS + Beidou';

when the distance between the trailer and the trailer is greater than the satellite positioning precision range, the distance between the trailer and the trailer is calculated by the monitoring center according to the satellite positioning coordinates of the trailer and the trailer;

when the distance between the trailer and the trailer is long, the speed detection adopts a satellite positioning mode, and the speed calculation is realized by a cab display terminal; when the two vehicles are close, the distance change rate measured by the laser ranging sensor is utilized, and the travelling speed of the truck is calculated by the trailer/towed vehicle position detection device; the laser ranging sensor is arranged at the front end of the train and connected with the trailer/towed vehicle position detection device.

5. The train coupling positioning detection system of claim 1, wherein the trailer/towed vehicle position detection device is manufactured by injection molding, and the external antenna is installed on the trailer and the towed vehicle in a magnetic adsorption manner, and the protection grade is IP 65.

6. The train connection positioning detection system of claim 1, wherein the wireless communication device comprises a 4G signal tower, and a local area network is built through a gateway device by adopting a LoRa star network architecture.

7. The train hitching positioning detection system according to claim 1, wherein the monitoring center is provided with a backup database, a recovery database and a compression database;

the backup database is used for backing up all data of the monitoring center and periodically executing backup operation;

the recovery database is used for recovering the database to a certain backup state by using the function when the local database is damaged, but the data which is not backed up cannot be recovered;

the compressed database is used for compressing the monitoring center database, so that the use capacity of the database is reduced, and the running speed of the system is increased.

8. A train coupling positioning detection method is characterized by comprising the following specific steps,

s1, inputting trailer information into a monitoring center during each operation, wherein the trailer information comprises a target track, the number of trailers of the trailer, the length of each trailer and the number of the trailers;

s2, the monitoring center automatically calculates the coordinate position of each compartment according to the track where the trailer is located, the number of compartments, the length of each compartment and the coordinate position of the first compartment to form historical coordinate information of the trailer; the monitoring center sends the data to a cab display terminal;

s3, the cab display terminal has a centimeter-level precision positioning function, automatically calculates the distance between the trailer and the towed vehicle according to the coordinates of the display terminal, the current coordinates of the towed vehicle, the geometrical shape of the track and the length information of the locomotive, gives a prompt of the driving speed and the driving time, and displays the driving track on the cab data terminal in real time;

s4, the driver completes the hitching according to the driving speed, the driving track and the driving time given by the step S3.

9. The train connection positioning detection method according to claim 8, wherein the monitoring center is connected with a mobile terminal APP, and the mobile terminal APP is used for monitoring and querying train operation conditions of related personnel from the monitoring center at any time and any place.

Technical Field

The invention belongs to the field of train position detection, and particularly relates to a train coupling positioning detection system and method.

Background

The recombination and the coupling of the rail wagons are the main operation contents of the freight station, but because the operation environment is severe, the tasks are heavy and the coupling requirement is high, in the actual operation process, a locomotive driver cannot accurately know the data such as the distance between the trailer and the towed vehicle, the speed per hour and the like in real time, so that accidents in some operation processes are caused. Due to the fact that the working conditions of the railway freight car are complex and the surrounding interference is more, the railway freight car is still manually detected at present, and the train is connected and hung by using the interphone, for railway workers, the accuracy of data depends on long-term practical accumulation, the shortage of workers and the low time efficiency cannot meet the requirement of the existing train connection and hanging.

Disclosure of Invention

At present, the domestic satellite positioning is mainly provided with a GPS and a Beidou positioning system, the GPS has the characteristics of high response speed and accurate positioning, but system data is mastered in foreign hands, and the Beidou positioning system is a global positioning system independently researched and developed in China, but is in a popularization and optimization stage at present and has relatively few resources. This scheme selects for use the locate mode of "GPS + big dipper" when the design, can use GPS to carry out the system location in system experiment stage, and big dipper system adopts big dipper locate system as the auxiliary positioning mode when function verification finishes getting into the popularization stage as the operation mode of giving first place to. The technical proposal is that the method comprises the following steps,

a train coupling positioning detection system comprises a monitoring center, a cab display terminal, a trailer/towed vehicle position detection device and a satellite positioning ground base station;

the monitoring center is a trailer operation analysis operation platform, and current and historical operation information of the train can be monitored in real time through the platform;

the driver cab display terminal is used for driver login, station track distribution display, trailer/towed vehicle position display on the track, locomotive speed display, locomotive length, track geometry, trailer and towed vehicle distance display, and sends information to the monitoring center in real time through wireless communication equipment;

the trailer/towed vehicle position detection device is arranged on an operation train and used for receiving satellite signals, detecting the distance between two trains and the speed of the trailer in real time and sending the distance and the speed to a monitoring center through wireless communication equipment;

the satellite positioning ground base station is used for receiving and transmitting data.

Further, still including removing the end, it is equipped with corresponding APP to remove the end, it is used for relevant personnel to follow the control center anytime and anywhere and control and inquire the operation condition to remove end APP.

Furthermore, the cab display terminal is provided with a positioning device and an error prevention device; the positioning device can detect the self coordinates of the cab display terminal, the current coordinates of the trailer, the track geometry and the length information of the locomotive; the anti-misoperation device is used for reminding a driver of preventing mistaken touch operation.

Furthermore, the trailer/towed vehicle position detection device is two detection devices with completely the same functions, and the functions of trailer real-time position detection, distance measurement, speed detection and data transmission are realized;

the position detection adopts a positioning mode of 'GPS + Beidou';

when the distance between the trailer and the trailer is greater than the satellite positioning precision range, the distance between the trailer and the trailer is calculated by the monitoring center according to the satellite positioning coordinates of the trailer and the trailer;

when the distance between the trailer and the trailer is long, the speed detection adopts a satellite positioning mode, and the speed calculation is realized by a cab display terminal; when the two vehicles are close, the distance change rate measured by the laser ranging sensor is utilized, and the travelling speed of the truck is calculated by the trailer/towed vehicle position detection device; the laser ranging sensor is arranged at the front end of the train and connected with the trailer/towed vehicle position detection device.

Furthermore, the trailer/towed vehicle position detection device adopts an injection molding process, an external antenna is installed on the trailer and the towed vehicle in a magnetic adsorption mode, and the protection grade is IP 65.

Further, the wireless communication equipment comprises a 4G signal tower, a LoRa star network architecture is adopted, and a local area network is built through gateway equipment.

Furthermore, the monitoring center is provided with a backup database, a recovery database and a compression database;

the backup database is used for backing up all data of the monitoring center and periodically executing backup operation;

the recovery database is used for recovering the database to a certain backup state by using the function when the local database is damaged, but the data which is not backed up cannot be recovered;

the compressed database is used for compressing the monitoring center database, so that the use capacity of the database is reduced, and the running speed of the system is increased.

A train coupling positioning detection method comprises the following steps,

s1, inputting trailer information into a monitoring center during each operation, wherein the trailer information comprises a target track, the number of trailers of the trailer, the length of each trailer and the number of the trailers;

s2, the monitoring center automatically calculates the coordinate position of each compartment according to the track where the trailer is located, the number of compartments, the length of each compartment and the coordinate position of the first compartment to form historical coordinate information of the trailer; the monitoring center sends the data to a cab display terminal;

s3, the cab display terminal has a centimeter-level precision positioning function, automatically calculates the distance between the trailer and the towed vehicle according to the coordinates of the display terminal, the current coordinates of the towed vehicle, the geometrical shape of the track and the length information of the locomotive, gives a prompt of the driving speed and the driving time, and displays the driving track on the cab data terminal in real time;

s4, the driver completes the hitching according to the driving speed, the driving track and the driving time given by the step S3.

Further, the monitoring center is connected with the mobile terminal APP, and the mobile terminal APP is used for monitoring and inquiring train operation conditions of relevant personnel from the monitoring center at any time and any place.

Advantageous effects

1. This scheme selects for use the locate mode of "GPS + big dipper" when the design, can use GPS to carry out the system location in system experiment stage, and big dipper system adopts big dipper locate system as the auxiliary positioning mode when function verification finishes getting into the popularization stage as the operation mode of giving first place to.

2. The distance position between the trailer and the towed vehicle is obtained at regular time through the trailer/towed vehicle position detection device, and the real-time speed of the trailer is obtained through calculation.

The method of 'satellite + base station' makes up that satellite signals are weak in indoor, tunnel and other areas, makes up through indoor distribution systems of wireless networks and the like, especially can complete positioning even if the terminal cannot completely receive the satellite signals, and can complete longitude and latitude calculation by means of positioning technologies based on the wireless networks and the mobile terminals.

Drawings

FIG. 1 is a schematic diagram of the present application;

wherein 1-4G signal towers; 2-cab display terminal; 3-a monitoring center; 4-a mobile terminal; 5-trailer/towed vehicle position detection means; 6-satellite positioning ground base station; 7-Beidou satellite.

Detailed Description

The following further description of the technology will be provided in conjunction with fig. 1 and the specific embodiments to aid in understanding the present invention.

A train coupling positioning detection system is characterized by comprising a monitoring center, a cab display terminal, a trailer/towed vehicle position detection device, a mobile terminal and a satellite positioning ground base station;

the monitoring center is a trailer operation analysis operation platform, and current and historical operation information of the train can be monitored in real time through the platform;

the monitoring center is provided with a backup database, a recovery database and a compression database;

the backup database is used for backing up all data of the monitoring center and periodically executing backup operation;

the recovery database is used for recovering the database to a certain backup state by using the function when the local database is damaged, but the data which is not backed up cannot be recovered;

the compressed database is used for compressing the monitoring center database, so that the use capacity of the database is reduced, and the running speed of the system is increased.

The driver cab display terminal is used for driver login, station track distribution display, trailer/towed vehicle position display on the track, locomotive speed display, locomotive length, track geometry, trailer and towed vehicle distance display, and sends information to the monitoring center in real time through wireless communication equipment;

the cab display terminal is provided with a positioning device and an anti-misoperation device; the positioning device can detect the self coordinates of the cab display terminal, the current coordinates of the trailer, the track geometry and the length information of the locomotive; the anti-misoperation device is used for reminding a driver of preventing mistaken touch operation, the driver needs to regularly press the anti-mistaken touch reset key, the transient overtime sends out prompt sound, and the long-time overtime sends out comparatively harsh warning sound, so that the phenomenon that the driver mistakenly touches in the trailer operation process is prevented.

The trailer/towed vehicle position detection device is arranged on an operation train and used for receiving satellite signals, detecting the distance between two trains and the speed of the trailer in real time and sending the distance and the speed to a monitoring center through wireless communication equipment;

the wireless communication equipment comprises a 4G signal tower, adopts a LoRa star network architecture and builds a local area network through gateway equipment.

The trailer/towed vehicle position detection device is two detection devices with completely same functions, and the functions of trailer real-time position detection, distance measurement, speed detection and data transmission are realized;

the position detection adopts a positioning mode of 'GPS + Beidou'; the system can be positioned by using a GPS in the system experiment stage, the Beidou system is used as an auxiliary positioning mode, and when the function verification is finished and the popularization stage is started, the operation mode mainly based on the Beidou positioning system is adopted.

When the distance between the trailer and the trailer is greater than the satellite positioning precision range, the distance between the trailer and the trailer is calculated by the monitoring center according to the satellite positioning coordinates of the trailer and the trailer;

when the distance between the trailer and the trailer is long, the speed detection adopts a satellite positioning mode, and the speed calculation is realized by a cab display terminal; when the two vehicles are close, the distance change rate measured by the laser ranging sensor is utilized, and the travelling speed of the truck is calculated by the trailer/towed vehicle position detection device; the laser ranging sensor is arranged at the front end of the train and connected with the trailer/towed vehicle position detection device.

The trailer/towed vehicle position detection device adopts an injection molding process, and a shell of the trailer/towed vehicle position detection device is provided with a power supply, an address selection operation switch, a USB standard charging interface and an external antenna; the magnetic adsorption type trailer is arranged on a trailer and a towed vehicle in a magnetic adsorption mode, and the protection grade is IP 65; the inside of the system is provided with a Nebulas-II UC4C0 chip which supports full-system multi-frequency point high-precision positioning and orientation and supports a plurality of satellite navigation systems such as BDS, GPS, GLONASS, Galileo, QZSS and the like.

The satellite positioning ground base station is used for receiving and transmitting data.

Remove the end and be equipped with corresponding APP, remove end APP and be used for relevant personnel from the control center anytime and anywhere control and inquiry operation condition. The mobile terminal comprises a mobile phone and a tablet.

A train coupling positioning detection method comprises the following steps,

s1, inputting trailer information into a monitoring center during each operation, wherein the trailer information comprises a target track, the number of trailers of the trailer, the length of each trailer and the number of the trailers;

s2, the monitoring center automatically calculates the coordinate position of each compartment according to the track where the trailer is located, the number of compartments, the length of each compartment and the coordinate position of the first compartment to form historical coordinate information of the trailer; the monitoring center sends the data to a cab display terminal;

s3, the cab display terminal has a centimeter-level precision positioning function, automatically calculates the distance between the trailer and the towed vehicle according to the coordinates of the display terminal, the current coordinates of the towed vehicle, the geometrical shape of the track and the length information of the locomotive, gives a prompt of the driving speed and the driving time, and displays the driving track on the cab data terminal in real time;

s4, the driver completes the hitching according to the driving speed, the driving track and the driving time given by the step S3.

The monitoring center is connected with the mobile APP end, and the mobile APP end is used for monitoring and inquiring train operation conditions of related personnel from the monitoring center at any time and any place.

Of course, the above description is not intended to limit the present technology, and the present technology is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the spirit and scope of the present invention.