Design of Multiplex Power on_off Control Device Based on PT2262/2272

Based on PT2262/2272,multiplex distributed power on_off control device with status return is presented and designed.The device is composed of two parts——active control part and passive control part,information exchange between which is based on UHF wireless communication.The active control part is centred upon Atmega16 to control multiplex passive control parts and receive their return information.The passive control part receives control command and execute,and a new status return method without a processor is given.The device is practically used,and a lot of wire is not only saved,but also fault places and fault ratio are decreased and reliability is improved.It provides experiment equipments work status data for the open laboratory.