Design ecg collecting module , which includes preamplifier , high pass filter , 50hz notch filter , skin electricity filter , low pass filter , electrical level rising and primary amplifier , adc and mcu , real time clock 设计心电采集模块,包括心电前置放大、高通滤波、工频陷波、肌电滤波、低通滤波、电平抬升和主放大、 a / d转换和单片机,实时时钟。
The thesis also designs the municipal electricity blackout and alarm circuit , the ac ( air condition ) switching control circuit , the watchdog circuit , the lcd display circuit , real - time clock circuit and the serial communication testing circuit 此外本文还设计了市电停电告警电路、空调开关控制电路、看门狗电路、 lcd显示电路、实时时钟电路和串口通讯测试电路。
These settings control how often data is processed , how far the generator is allowed to fall behind the real - time clock , how events are processed , how much data can be received and sent , how distribution data is logged , and how often old data is removed from the database 这些设置控制处理数据的频率、允许生成器滞后于实时时钟的程度、处理事件的方式、可以接收和发送的数据量、记录分发数据的方法以及从数据库中删除旧数据的频率。
Lower control system uses mcs - 51 microcomputer as main control chip , it also includes interface circuit , such as sensor , a / d , d / a , lcd , real - time clock , watchdog and serial e2prom . this paper presents hardware circuit and some important software source code 在下位机控制系统中,采用mcs ? 51系列单片机作为主控制器,主要包括模拟系统单元(传感器、 a d转换器、 d a转换器) 、液晶显示单元、实时时钟单元、看门狗及串行e2prom单元等。
These settings control how frequently data is processed , how far the generator is allowed to fall behind the real - time clock , how events are processed , how much data can be received and sent , how distribution data is logged , and how frequently old data is removed from the database 这些设置控制处理数据的频率、允许生成器滞后于实时时钟的程度、处理事件的方式、可以接收和发送的数据量、记录分发数据的方法以及从数据库中删除旧数据的频率。