Special message sending device and message sending method for balise transmission module (BTM)

Abstract

The invention discloses a special message sending device and a message sending method for a BTM, and belongs to the field of railway communication signals. The device comprises a control module, a level switch module, an optoelectronic switch module and a power supply module. The control module is used for controlling the closing and opening of the optoelectronic switch module periodically through the level switch module; the level switch module is used for driving the working of the optoelectronic switch module according to instructions of the control module; and the optoelectronic switch module is connected in series with a transmitting loop of a ground balise, the other end is connected with the level switch module, and when the level switch module drives the optoelectronic switch module to work according to the instructions of the control module, the optoelectronic switch module is closed, the transmitting loop is connected, and the ground balise sends messages to the BTM; and the power supply module is used for supplying power for the modules. According to the special message sending device and the message sending method for the BTM, messages are sent automatically instead of being sent manually depending on operators, and various message sending combinations are formed through non-equivalent relations between the message number and the time length designing number; and batch production requirements can be met, and simultaneously, the cost is low, and the operation is simple.

Description

technical field [0001] The invention relates to the field of railway communication signals, in particular to a special message sending device and a message sending method for a transponder vehicle interrogator. Background technique [0002] The Balise Transmission Module (BTM for short) is an important component of the train driving control system. The BTM activates the ground transponder through the antenna, and receives the message from the ground transponder, decodes the received message and sends it to the train computer for use. Therefore, it is necessary to test the BTM to ensure the safety of the BTM, thereby ensuring the safety of the train. driving safety. The BTM test needs to provide messages from the ground transponder to test the receiving and message transmission capabilities of the BTM. [0003] The existing BTM testing methods include manual testing and special system testing. However, when manual testing is used, the message transmission adopts a relativel...

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Problems solved by technology

[0003] The existing BTM testing methods include manual testing and special system testing. However, when manual testing is used, the message transmission adopts a relatively backward manual method. It is necessary for a person to hold a ground transponder and pass through the BTM according to a specified path. The transmitting surface of the antenna enables the BTM to receive signals to be fully detected, relying on the manual execution of the operator, the test distance, range, passing speed, etc. are not easy to control, and the operator is close to the BTM antenna, there is a risk of ionizing radiation, which is not conducive to human health;

[0004] The special system test needs to control the sending of messages through a series of instruments, which requires many instruments and high cost. For the test of the two functions of BTM receiving messages and BTM providing RF energy, different connection configurations are required. Frequent switching back and forth makes the operation extremely complicated

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