自动控制文献翻译——在高速列车控制系统的模拟平台模拟轨道电路占用是必要的，为其它模拟设备计算移动授权或者产生轨道电路编码提供必要条件。关于轨道电路模拟存在的问题是可能会存在超过一个轨道区段对应一公里的速度行进。

为了解决这个问题，本文提出了一种方法可以准确地辨别轨道电路区段的占用。本方法用信号机作为参考源，结合以连锁设备为基础的模拟计算机上得到的线路信息，火车里程是增加还是减少得看列车运行方向去发现轨道电路的占用。

参考源总是变化并且轨道电路的占用或出清的识别通过一个统一的路线，此方法能在任何复杂的路线发现轨道电路的占用，通过改变参考源和清除火车里程来减少累积的误差，因此解决了实际和模拟轨道电路的差异。减少了虚拟轨道电路占用状态的复杂性，为高速列车控制系统虚拟平台打下基础。

1介绍

EFORE高速列车控制系统正在使用中，建立一个高速列车模拟平台是必要的，模拟真实的运行环境为了整个控制系统工作原理的研究和列车控制系统的核实和评定。同时，平台为关键的设备提供了具备测试功能的环境。

此外，这个平台能作为各种控制方法的研究和验证的基础，它需要以真实环境为基础的真正的设备。

轨道电路时高速列车控制系统的关键成分，被用于轨道电路占用的识别和列车控制信息的传输编码。虚拟轨道电路时整个虚拟高速列车控制系统的关键议题。

2轨道电路仿真

A.轨道电路仿真的作用

在高速列车控制系统中，识别轨道电路占用是RBC计算MA的先决条件，并且也是列车定位的基础。在车站，轨旁子系统发送轨道电路占用信息到CBI。在一个区段，轨旁子系统发送轨道占用信息给TCC，以TCC计算的轨道电路编码次序为基础，发送编码次序到轨旁设备。当列车通过时，编码次序.......

In the simulation platform of high-speed train control system, it is necessary to simulate the track circuit occupation in order to provide basic conditions for other simulated equipment to calculate movement authority or generate track circuit code A problem with the simulation of track circuit is that there may be more than one track circuit sections corresponding to one kilometer post. 

To solve this problem, this paper proposes an algorithm to precisely identify the occupied track circuit sections. In this algorithm, by using the signal machine as a reference origin, in combination with the route information received from the simulated computer based interlocking equipment, train mileage is increased or decreased based on train running direction to find the occupied track circuit sections.

The reference origin is always changing and the occupied track circuits inside or outside the station are identified by a unified “route”. This algorithm can find the occupied track circuit in a route of any complexity and reduce the accumulated error by using the changing reference origin and clearing the train mileage, thus solving the difference between the real and simulated track circuit. This algorithm reduces the complexity of simulating the occupation state of track circuit and lays a foundation for the construction of high-speed train control system simulation platform.

I. Introduction

EFORE the high-speed train control system is put into use, it is necessary to build a high-speed train control system simulation platform in order to simulate the real operating environment for the research on the working principle of the entire control system, and for the verification and assessment of train control system scheme. At the same time, the platform provides a functional testing environment for the key equipment.

In addition, the platform can serves as a base for the research and validation of a variety of control algorithms. In the simulation platform, it is needed to simulate all of the real equipments based on real situations and constitute.

Track circuit is a key component of the high-speed train control system, which is used for identifying track occupation and for transmitting coded train control information. The simulation of track circuit is a key issue for the simulation of the whole high-speed train control.......