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本设计在国网采集设备与GPRS的通信基础上,根据国网标准Q/GDW-1375.1—2013《电力用户用电信息采集系统型式规范-第1部分:专变采集设备型式规范》,将GPRS模块从采集设备延长至60 m。为了减少电源传输损耗和信号衰减,采用先升后降的电压处理方式,保证能够提供足够的电压电流给GPRS模块,并采用232信号转换电路将信号衰减降到最低。当采集设备处于GPRS与外网无法通信的地方时,可使用本设备将GPRS放置在能够与外网通信的地方,可保证设备正常使用。
Based on the national network standard Q / GDW-1375.1-2013, “Type Specification for Electricity Subscriber Information Collection System for Power Users - Part 1: Specified Type of Specialized Acquisition Equipment”, this design integrates GPRS The module is extended from the acquisition device to 60 m. In order to reduce the power transmission loss and signal attenuation, using the first increase and then reduce the voltage processing to ensure that it can provide enough voltage and current to the GPRS module, and the use of 232 signal conversion circuit to minimize signal degradation. When the collection equipment is in the GPRS and the external network can not communicate with the place, you can use this device will be placed in the GPRS communication with the outside world, to ensure the normal use of equipment.