利用EEPROM实现单片机的数据掉电保存及利用I2C模式进行通讯。
MCU use EEPROM data preservation and the use of power-down mode I2C communications.
另外还采用了最新电源监控芯片X5045既可以监控程序防止程序跑飞，又可以在掉电时保存重要参数和数据。
In addition, updated power monitoring chip of X5045 is used not only to monitor program against the program running over, but also to store data and important parameters when power is off.
为了防止系统掉电时数据丢失，采用EEPROM保存报警阈值、最新浓度值等重要数据；
Important data such as warning limit and latest concentrations are saved into EEPROM in case of power break.
分档、超限判断可自由设定，掉电自动保存，仪器能同时保存20组数据，使用时只要调出其中一组即可。
Grouping values and limit values freely set, with automatically saving function in case of power cut; the instrument can save 20 different Settings.
自动掉电保护，工作参数可保存十年。
Auto power trip protection and the operation parameters can be stored for above ten years.
分档、超限判断可自由设定，掉电自动保存，仪器能够同时保存20组数据，使用时只要调出其中一组即可。
Grouping values and limit values freely set, with automatically saving function in case of power cut; the instrument can save 20.
本系统可适时测量风力发电电能质量指标，具有掉电保护、报警、通信、保存、显示功能。
This system can not only timely monitor the wind power quality indices, but also has the function of power-down protection, alarm, communication, preservation and display.
本系统可适时测量风力发电电能质量指标，具有掉电保护、报警、通信、保存、显示功能。
This system can not only timely monitor the wind power quality indices, but also has the function of power-down protection, alarm, communication, preservation and display.
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