Portable Source Simulator for Active Transponders

Abstract

The invention discloses a portable information source simulator for an active transponder, and belongs to the field of railway signals. The portable information source simulator comprises a first signal control module, a second signal control module, a signal combination module and a cable simulation module, wherein the first signal control module is used for providing a transponder message for the active transponder, the second signal control module is used for providing a bias voltage signal for the active transponder and providing energy needed by normal operation of the active transponder, the signal combination module is used for coupling the transponder message with the bias voltage signal to obtain a standard interface signal, and the cable simulation module is used for simulating transmission cables with different lengths between an LEU (lineside electronic unit) and the active transponder. The portable information source simulator can simulate the actual LEU to provide information sources for the active transponder and can simulate the cables with particular length specifications, is convenient to carry, and has the advantages that the portable information source simulator is simple to use, low in power consumption and easy to popularize, cost is saved and the like.

Description

technical field [0001] The invention relates to the field of railway communication signals, in particular to a portable signal source simulation device for an active transponder. Background technique [0002] LEU (Lineside Electronic Unit, ground electronic unit) and transponders are indispensable ground signal equipment in the train operation control system, in which transponders are divided into active transponders and passive transponders, and active transponders are also called active transponders. The active transponder is connected to the LEU through a dedicated transponder transmission cable, so that the indoor LEU can communicate with the active transponder laid on the outdoor rail. The interface between the LEU and the active transponder is the C interface, and the C1 interface and the C6 interface are respectively sub-interfaces of the C interface. [0003] Under the current technical conditions, whether in the laboratory or in the field, it is necessary to use th...

AI Technical Summary

Problems solved by technology

[0003] Under the current technical conditions, whether in the laboratory or in the field, it is necessary to use the actual LEU to cooperate when testing the active transponder, but the use of the actual LEU is expensive, and the LEU outputs four channels, while generally there are The source transponder test only uses one channel, and the other three channels are actually wasted; in addition, the actual LEU cannot control the sending of the C1 interface signal or the C6 interface signal alone

And if you need to test the performance of the active transponder after long-distance transmission, you need to use the actual transponder transmission cable to connect the LEU to the active transponder, which is not only expensive, but also difficult to carry and carry

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