C3 temporary speed restriction command transmitting system apparatus and method

The invention provides a temporary speed-restricting command sending method and device of a C3 system. The method comprises the following steps: a TSRS (temporary speed-restricting server) receives a temporary speed-restricting command issued by a CTC (centralized control); and a TSRS performs automatic splitting according to starting points in speed-restricting areas, final points in the speed-restricting areas and the speed-restricting control range of all TCCs (train control centers) and/or RBCs (radio blocking centers) on railway lines corresponding to the line numbers, and sends corresponding speed-restricting commands to all the relevant TCCs and/or RBCs, C2 speed-restricting information is transmitted to C2 vehicle-mounted devices by the TCCs through an active transponder, and C3 speed-restricting information is transmitted by the RBCs through a GSM-R (global system for mobile communications for railway). According to the invention, the TSRS is arranged in a railway system, andacquires the temporary speed-restricting commands by virtue of being connected with the CTC, the temporary speed-restricting commands are distributed to the relevant TCCs and RBCs to realize automatic distribution of all the TCCs and RBCs in the whole-line control range and the centralized management of the train control speed-restricting commands; and the C2 and C3 speed-restricting commands canbe set and canceled simultaneously by the TSRS so as to contribute to guaranteeing the consistency of the two train control systems.