应答器传输模块的动态特性及高速条件下的适用性评价

The Dynamic Characteristics of Balise Transmission Module and the Assessment on Its Adaptability under High Speed Condition

分析应答器传输模块(BTM)的动态特性,辨析与BTM动态特性相关的基本概念,包括静态作用距离、动态作用距离、最小允许作用距离、BTM的接收能力等,建立这些概念的数学表达式。给出了与BTM动态特性相关的关键参数计算方法以及BTM设备动态特性的测试方法。提出BTM在高速条件下的适用性评价步骤是:明确线路环境、机车环境和设备安装等外部约束条件,确定BTM设备的可用性需求,计算BTM的最小允许作用距离和最小允许作用时间、BTM的动态接收能力和动态处理能力等指标;对拟用BTM设备通过测试采集相关技术指标;将采集的指标与计算的指标进行比较,评价拟用BTM设备的适用性。通过此评价方法实现了对BTM动态特性及高速适用性的定量评价。

The dynamic characteristics of the Balise Transmission Module（BTM） were analyzed.The basic concepts with relation to the dynamic characteristics of BTM were differentiated and analyzed,such as the static action range,dynamic action range,the minimum permitted action range and the receiving capability of BTM,etc.Mathematical formulas were built so as to illustrate these concepts explicitly.The calculation algorithms for the key parameters of BTM dynamic characteristics as well as the test methodology for the dynamic characteristics of BTM equipment were presented.A speed adaptability assessment process for BTM under high speed condition was thus proposed as follows.Firstly,the external constraints were determined,including railway line environment,locomotive environment and equipment installation.Secondly,the availability requirement for BTM was confirmed.Thirdly,the indexes for the minimum permitted action distance,the minimum permitted action time,the dynamic receiving capability and dynamic processing capability of BTM were calculated.Finally,the speed adaptability of the proposed BTM equipment was evaluated through comparing the actual parameters acquired by testing and the required specification determined by the above steps. Therefore,the quantitative assessment for BTM dynamic characteristics and high-speed adaptability were realized.