Patent ID: 9749719
Date: 2017-08-29
CPC Classifications: H04Q

Claim:
1. A communication converting apparatus for a pulse meter, comprising: a pulse collection unit, configured to collect a pulse signal generated from the pulse meter; a storage unit, configured to store a reading of the pulse meter; a micro control unit, configured to control the pulse collection unit to collect the pulse signal, to read the reading stored in the storage unit, and to obtain an updated reading of the pulse meter according to the pulse signal and the reading stored in the storage unit; and an RS485 communication unit, configured to convert the updated reading of the pulse meter into an RS485 communication signal for outputting; wherein, the pulse collection unit is provided with photoelectric isolation; wherein, the micro control unit comprises: the apparatus further comprising a voltage detection unit configured to detect a voltage drop in the pulse meter, wherein the micro control unit is further configured to store the updated reading of the pulse meter in the storage unit when the voltage detection unit detects that a voltage drop occurs in the pulse meter.