|
|
|
| Application of radio and line mixed transmissionin automatic delivery of barreled water |
| HAN Yu-Tuan, ZHAO Jian, LIN Guo-Ying, ZHONG Lin-Feng, QI Cai-Jun |
| College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China |
|
|
|
Abstract This paper mainly discussed the solution of transmitting unexpected signals by co-applying Radio and Line, which had been successfully adopted in Automatic Delivery of barreled water. This design involved the automatic delivery system comprising client and server hardware, and required no visible change to water dispenser, no extra indoor wires or power source. This paper focused on client delivery system, whose work included amplifying and modulating signals, sending and receiving radio, identifying codes, decoding, and automatically dialing. The server located in delivery centre received and identified DTMF signals from phone line sent by multiple clients and acquired the coding information of water level from them. Furthermore, the paper presented other possible applications of low-cost but long-distance information transmission.
|
|
Published: 28 February 2005
|
无线与电话线混合传输方案在桶装水自动配送系统中的应用
介绍了一种无线/市话线混合传输少量突发信号的解决方案，并成功应用于桶装饮用水自动配送系统中。设计了包括客户端硬件和服务器端在内的自动配送系统，不改变饮水机外观，避免室内布线并无需额外电源。研究了包括信号放大调制、无线收发及编码识别、单片机处理编码及自动电话拨号在内的配送客户端系统。位于配送中心的服务器端从电话线上接收和识别多客户端发送的 DTMF信号，从中得到代表水位的编码信息。提示了低成本、长距离传输信息的其他可能应用。
关键词：
无线,
市话,
传输,
水位,
传感,
配送,
单片机
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
