The Research Of Elevator Monitor System And Carbine Communication Based On Wireless Technology

Based on bp304 elevator control system of Germany Boehnke company, the application wireless communication was used in system and carbine system. By comparing the bitrate and communication distance of various wirelss communication technologies, the result proved that Wi-Fi technology and single-chip radio transceiver for the 433/868/915 MHz ISM band are separately suitable for elevator monitor system and elevator carbine communication. An interface was designed to show the elevator information, and a video window was added to improve the function of elevator monitor system.Finally, two practical tests was taken, the results show that both two wirelss technologies meet the requirements.The main contents of thesis are as follows:1. Analyze the development of elevator monitor system and carbine communication, the disadvantages wired communication was pointed out.2. The wirelss elevator carbine system was proposed.3. A detail study of elevator communication protocol based on bp304 control system was made to prepare for the next communication design.4. Several main wireless communication technologies was compared in this thesis and analysis of validation was showed in aspects of bitrate and communication distance.5.Wireless elevator monitor system based on Wi-Fi technology was proposed, and an interface was designed by using delphi7.0.6. A radio transceiver working on 433Mhz was designed and buffer technique was used to solve the time requirements7.Finished the tests of two wireless technologies..