The invention discloses an alarm distance control method of a train position alarm system. The method comprises the following steps: a terminal node receives an alarm data packet from a main network by using a first channel, it is judged whether the alarm data packet comes from a head communication node or not; if not, the terminal node acquires mileage information ADDR1 in the alarm data packet;the first channel is converted to a second channel, the terminal node judges whether the second channel is in an idle state at present, if so, the terminal node sends a position query request to the main network and judges whether a position query response from the main network is received, and if so, the terminal node counts all position query responses received from the main network within a preset time starting from the current moment. The technical problem that the railway construction progress is delayed due to the fact that constructors far away from a train receive alarm information andleave a railway construction road section too early due to the fact that the alarm signal transmission distance of an existing train position alarm system is too long can be solved.
本发明公开了一种列车位置报警系统的报警距离控制方法,包括:终端节点使用第一信道接收来自于主网络的报警数据包,并判断该报警数据包是否来自于首通讯节点,如果不是则终端节点获取该报警数据包中的里程信息ADDR1,切换到第二信道,终端节点判断第二信道当前是否处于空闲状态,如果是则终端节点向主网络发送位置查询请求,并判断是否接收到来自主网络的位置查询响应,如果是则终端节点统计从当前时刻开始的预设时间内从主网络接收到的所有位置查询响应。本发明能解决现有列车位置报警系统报警信号传输距离过远,导致距离列车较远的施工人员因接收到报警信息并过早离开铁路施工路段,从而耽误铁路施工进度的技术问题。
Alarm distance control method of train position alarm system
一种列车位置报警系统的报警距离控制方法
08.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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