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根据客运专线车站和GSM-R系统的特点,确定建模的基本条件。建立覆盖客运专线车站的GSM-R小区内列车驻留时间分布模型,包含新呼叫后不停站列车、切换呼叫后不停站列车、新呼叫后停站列车、切换呼叫后停站列车在GSM-R小区内的驻留时间分布模型。以GSM-R小区覆盖半径3 km、列车运行速度200～250 km.h-1为例,采用建立的模型进行仿真计算。仿真计算结果表明,覆盖客运专线车站的GSM-R小区内列车驻留时间分布特征显然与公网内小区驻留时间分布特征不同,因此不能采用负指数分布、伽玛分布等概率模型表达,而是应该根据车站和GSM-R系统的实际情况,采用给出的模型,通过仿真计算得到。
According to the characteristics of passenger dedicated line station and GSM-R system, determine the basic conditions of modeling. Establishment of a GSM-R residential area dwell time distribution model covering the stations of a dedicated passenger line, including non-stop trains after a new call, non-stop trains after switching calls, stop trains after a new call, stop trains after switching calls, - Residential Area Time Distribution Model in Residential Area. Taking GSM-R cell coverage radius of 3 km and train operating speed of 200-250 km.h-1 as an example, the established model is used for simulation. The simulation results show that the distribution characteristics of the residence time of GSM-R cells covering the passenger dedicated line stations are obviously different from the residence time distribution characteristics of the cells in the public network. Therefore, they can not be expressed by probabilistic models such as negative exponential distribution and gamma distribution It should be based on the actual situation of the station and GSM-R system, using the given model, calculated through the simulation.