The hardware of the system is built on the layout network of the doorphone system, and CAN BUS is used as the trunk line of communication to improve the real time performance and reliability.
系统硬件利用楼宇访客系统的布线网络，通信干线采用CAN总线，以提高通信的实时性和可靠性。
For this reason, the layout channel allocation and power supply of emergency communication system are studied.
为此，探讨了紧急电话的布设、信道配置以及供电方式。
The model of wireless ATC system, the layout of wireless AP and the communication mechanism are analyzed.
本文给出无线atc系统的系统模型以及无线接入点的布点方案，并分析了无线atc系统的通信方法。
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