【摘要】 设计一套水质检测系统,应用电源管理策略使其能可靠、节能地工作于无人监管的野外。系统采用飞利浦ARM7的LPC2148作为处理器,通过LPC2148内部集成的RTC对数据采集时间进行控制,把各传感器采集到的数据进行融合,一方面使用外部扩展存储器SD卡对融合后的数据进行及时存储,另一方面,把融合后的数据通过DES加密算法加密后,通过TC35终端GPRS的无线传输方式把数据发送到监测中心。更多还原

【Abstract】 The paper has described how to design a set of water quality testing system.The power management strategy is designed based on the water quality detection system will work at unsupervised outdoor environment to save energy and work reliablely.The system uses LPC2148 of Philips ARM7 as processor.The system adopt LPC2148 internal integrated collecting time control RTC,fusing the data from each sensor.On the one hand,the system uses external extended memory of SD card storaging the data after fusion,on the other hand,the date after fusion using DES encryption algorithm is sent to the monitoring center through TC35 terminal of GPRS at the form of wireless.更多还原