基于GPRS的水文遥测终端机设计

Design on Hydrological Telemetry Terminal System Based on GPRS

针对GPRS水文遥测终端机野外环境下供用电方式和工作模式的特点,利用单片机、GPRS远传模块和水文传感器,设计了集数据采集、存储和网络远程传输为一体的综合系统;提出了分区供电的电源管理方法和中断激活——分时操作的混合工作模式,给出了基于分区供电的电源管理电路,实现了系统合理有序的利用电能,降低了GPRS水文遥测终端机的耗电量,给出了中断激活——分时操作混合工作模式的实现方法;该模式摆脱了由于节电需要致使GPRS水文遥测终端机工作模式局限于自报式的状况;实际应用表明,该系统有明显的节电效果且系统控制性好。

To meet up the feature of power supply method and working mode of GPRS hydrological telemetry terminal system under wild environment, a synthesized system of data collection, memory and remote transmission by network is designed using single--chip microcomputer, GPRS remote module and hydrological sensor. The power management method of power supply division and the mixed working mode of interrupted activation--timesharing is put forward. The power management circuit of power supply division is presented. The rational power using is realized. The power consumption of GPRS hydrological telemetry terminal system is reduced. The realization method of interrupted activation-- timesharing mixed working mode is presented. This mode break away the situation that the working mode of GPRS hydrological telemetry terminal limited to self--report due to energy--saving. Practical application shows that the system has the obvious effect of energy--saving and better control.