Abstract: When a pair of balises of an STP-yh system is set in two points, there is the possibility that the balises cannot be detected accidentally. Through the comparison and analysis of a large amount of field data, this paper examines the influence of the distance between the two balises on the accuracy of detection, and verifies and validates such influence through a case study. This paper provides practical guidance for the design and installation of the two-point balises in the future.

Key words: STP-yh wireless shunting train signal and monitoring system, balise, installation spacing, direction calibration

摘要： STP-yh应答器双点设置时，存在偶然性检测不到应答器的情况。通过对现场大量数据的仔细比对分析，发现双点应答器之间的距离对检测准确性存在影响。通过现场实例加以验证确认，对今后双点应答器的设计安装提供实践指导。

关键词: STP-yh无线调车机车信号和监控系统, 应答器, 安装间隔, 方向校准