【摘要】 随着铁路几次大的提速 ,站内电码化预发码技术作为保证行车安全的基础设备已被广泛采用。文章从预叠加电码化的技术指标、原理、基本控制电路和主要类型等几个方面进行了介绍更多还原

【Abstract】 With the remarkable acceleration of the railway,the pre emitting codes technique within the station on coded track circuit is widely applied as a basic technical equipment for train safety.The technical index,principle,basic control circuit and primary types on pre overlay coding are introduced.更多还原