基于GSM短信与射频模块的远程二级控制系统设计

针对在同一区域内需要控制大规模对象时,每个短信模块只控制一个对象的方法存在成本大、操作复杂等问题,因此设计基于GSM短信和射频模块的远程二级控制系统.该系统包括基站和位于基站无线射频通信范围内的多个节点.用户手机通过GSM短信实现系统的第一层控制,即基站的远程控制.基站通过无线射频实现系统的第二层控制,即小区域内多个节...

Remote secondary control system based on GSM messages and RF modules

Aiming that a number of objects in the same region were needed to control,the method that a message module controlled an object had large cost,complicated operation and other problems.In order to solve the problem,remote secondary control system based on GSM messages and RF modules was proposed.The system contained a base station and multiple nodes locating in the RF communication range of base station.Using the GSM messages,the user＇s mobile phone achieved the first level control,the base station＇s remote control.Using the wireless RF,base station achieved the second level control,the multiple nodes＇ regional control in the small region.Reseach results indicate that this system reduces system costs,simplifies system circuit.It can be applied to many control areas such as smart home,access control systems,and agricultural irrigation and has certain application value.