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Relay device and method for data communication between locomotive and train tail part

A data communication and vehicle rear technology, which is applied in radio relay systems, railway signals and safety, etc., can solve problems such as inability to exhaust air, inability to query the wind pressure at the rear of the train, and achieve the effect of preventing crosstalk.

Active Publication Date: 2005-03-02
BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
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Problems solved by technology

However, the train end device in the 800MHz frequency band has a weak field in the tunnel, so that the wind pressure at the rear of the train cannot be queried in the tunnel, and the wind cannot be exhausted. Especially in the long and curved tunnel, the weak field phenomenon is more serious

Method used

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  • Relay device and method for data communication between locomotive and train tail part

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Embodiment Construction

[0015] see figure 1 , the mobile repeater according to the present invention works on the frequency band of 800MHz, and the locomotive radio station and the column tail main engine also work on this frequency band, and all adopt the standard of FFSK (fast frequency shift keying) to realize column tail wind Pressure alarm, detection and control functions. The antenna frequency range of the repeater is: 815MHz ~ 875MHz, its power supply is a rechargeable nickel-cadmium battery, the battery voltage is 7.2V, the battery capacity is 7AH, the radio station uses an 800M handheld station, and the transmission power is 3W. In order to adapt to various train carriages, the equipment is installed on the pedals used for train shunting.

[0016] The main functions and specific implementation methods of the device will be introduced as follows:

[0017] (1) Establish a "one-to-one" contact relationship: the repeater needs to be confirmed in advance before use, and a "one-to-one" contact r...

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Abstract

The present invention relates to relay device and method for the data communication between locomotive and train tail part. Based on the design of the present invention, movable repeater in special radio data transmission frequency is set on the train and strict time sequence control is performed, so as to solve the problem of powerful coverage with weak field and to realize the normal data transmission between the head and the tail of train. The device of the present invention may be used also in double track and other sections with poor radio transmission condition, and the train tail wind pressure alarm equipment has its use range expanded.

Description

technical field [0001] The present invention relates to a device and method for relaying data communication of a railway train, in particular, the present invention relates to a method and method for relaying data communication between a locomotive of a train and the rear of the train The device can solve the problem of weak wireless field in multi-tunnel sections in mountainous areas. Background technique [0002] In recent years, due to the cancellation of the guard car (car captain) of railway freight trains, the disconnection of the carriages at the rear of the train has become a major safety hazard. At present, the wind pressure alarm device at the rear of the train has been widely used as an effective means to grasp the condition of the carriages at the rear of the train. In the prior art, there are various tail confirmation devices or safety protection devices. As in Chinese patent documents CN 1142454 A, CN 1482439 A, and CN 1403325A, this type of train rear wind pr...

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Application Information

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IPC IPC(8): B61L23/34H04B7/14
Inventor 田秀臣葛鹰龙冷盛祥熊道权李晓伟
Owner BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
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