CN200971103Y - RFID cocomotive cocation and directional device - Google Patents

Abstract

The utility model provides a positioning and orienting device for a RFID locomotive and relates to the operation safety monitoring equipment of the railway system. The flat shunting lamp display system currently used in the shunting work works based on the visual examination of the driver and shunting personnel and is prone to cause various accidents because of watch errors, and therefore has become a large bottleneck in the safe production of the railway transportation. In the utility model, RFID are embedded underground at each key point of the station and send out wireless radiofrequency signals, which are identified by a RFID identifier arranged on the locomotive; the readout signals are transmitted to a locomotive-borne host computer, which then, through video and audio methods, provides the information on the front situation for the driver. So the utility model can effectively prevent accidents in the shunting work and has advantages of preferable accuracy, high automatization and strong adaptability (adapting to the shunting speed with 0-120km/h and the operating temperature range with minus 20-plus 60 degrees).

Description

RFID locomotive positioning and orientation device

technical field

The utility model relates to the field of computer integrated control devices, in particular to an operation safety monitoring device for railway systems.

Background technique

At present, the accident rate of domestic railway shunting operations is extremely high, which has become a major bottleneck restricting the production safety of railway transportation. Although many marshalling yards and large and medium-sized stations use the plane shunting light display system in the shunting operation process, because the current plane shunting light display system mainly relies on the shunting personnel and the drivers and passengers to confirm the ground locomotive signals, the locomotives are relatively The position of each key point in the marshalling process (signal, derailer, soil block, turnout) depends on the visual inspection of the driver and shunting personnel, and it is easy to cause locomotives to rush forward and crash due to wrong lookout signals or temporary negligence. Shunting accidents such as derailers, soil bumps, squeezed switches, and locomotive conflicts.

Contents of the invention

The purpose of the utility model is to avoid the operation safety hazard existing in the existing shunting locomotive relying on shunting personnel and drivers and passengers to confirm the signal of the locomotive on the ground, and to provide a safe, accurate, reliable and stable positioning and orientation device for shunting locomotives.

The utility model adopts radio frequency transmission (RFID) technology. When the locomotive runs to various key points, the RFID embedded in the ground can send out wireless signals, and the vehicle-mounted RFID recognizer reads out the signal and transmits it to the vehicle-mounted host computer. The image information reminds the driver of the situation ahead, which can effectively help the driver prevent shunting operation accidents.

The technical scheme for realizing the above-mentioned purpose is:

The RFID locomotive positioning and orientation device is composed of two parts, one part is the RFID embedded in the key points of each station that the locomotive passes, and the other part is the on-board equipment. The RFID identifier is installed on the locomotive, and the RFID identifier communicates with the on-board host through RS-232. Connection, the vehicle-mounted host is connected with its output device, the driver's desk display and the voice prompt unit, and the RFID and the RFID recognizer perform signal transmission through radio frequency.

The working principle of the utility model is as follows:

The station equipment RFID is buried in front of each key point (signal light, derailer, turnout, earth block) that the locomotive passes. When the locomotive passes by, the RFID identifier installed on the locomotive reads the information emitted by the RFID installed on the station. After the RS-232 serial port is transmitted to the on-board host, the on-board host can judge the distance between the current position of the locomotive and the key point. Through the processing of the program, the host will display the information of the key points in front of the locomotive and the distance between the locomotive and the locomotive. The position of the key point and the orientation of the locomotive are to bury two RFIDs along the track on the side of each key point. The distance between the two is 1 meter. Determine the running direction of the locomotive. After being processed by the on-board host program, the running direction of the locomotive is displayed on the driver's console display, and at the same time, the driver is reminded of the current running direction of the locomotive through the voice prompt unit. The driver can observe the current position and running direction of the locomotive, the situation ahead, and the measures the driver should take from the monitor on the driver's station, and the on-board voice prompt unit prompts the driver's current situation and the measures the driver should take through voice information. And voice prompts, the driver can clearly understand the accurate information of the locomotive running ahead without observing the ground signal. The hidden dangers of operation safety caused by personnel and drivers and passengers confirming the signal of the locomotive on the ground can effectively help the driver prevent shunting operation accidents.

The utility model has the characteristics of high accuracy, strong adaptability and high degree of automation, can adapt to various vehicle speeds during shunting, can work normally in the climate of -20～+60°C, and can effectively prevent manual confirmation of ground signal bands. potential safety hazards at work.

Description of drawings

Fig. 1 is the structural block diagram of the utility model RFID locomotive positioning and orientation device

Figure 2 is a flowchart of information identification

specific implementation plan

Embodiments of the present utility model are as follows:

Embed RFID in front of each key point of the station (such as signal lights, derailers, turnouts and soil blocks, etc.), using 900M metal (vehicle) electronic tags, model FTRDM2, frequency UHF, memory 2048bit; RFID identification is installed on the locomotive The reader adopts the FTRD-2011 reader that meets the standards of the Ministry of Railways. The frequency is 910.10MHz, 912.10MHz, and 914.10MHz. 0～40km/h), working temperature: -20℃～+60℃, with RS232 communication interface; Advantech IPC-610P industrial computer is used as the vehicle-mounted host, and the configuration is: processor InterPentium43.00, memory capacity 512M, hard disk capacity 120G, Advantech IPC-610P industrial computer supporting sound card for the voice prompt unit, Yamaha MCR-E700 active audio system, and DELL 15-inch high-brightness TFT display for the driver’s station display.

Claims (1)

1. RFID locomotive positioning and orientation device, which is characterized by two parts, one part is the RFID buried in the key points of each station that the locomotive passes through, and the other part is the on-board equipment. The locomotive is equipped with an RFID identifier, and the RFID identifier passes RS -232 is connected with the vehicle host, the vehicle host is connected with its output device driver's station display and the voice prompt unit, and the RFID and the RFID recognizer perform signal transmission through radio frequency.

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