Method for solving low-voltage power line carrier communication island problem
A low-voltage power carrier and problem-solving technology, applied in electrical signal transmission systems, signal transmission systems, radio relay systems, etc., can solve the problems of increasing on-site construction workload, expensive unit price of carrier concentrators, and unfavorable meter reading success rate, etc. Achieve the effect of solving the problem of isolated information islands, reducing the construction workload and improving the efficiency of meter reading
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[0041] The method for solving the islanding problem of low-voltage power carrier communication in this embodiment is as follows: figure 1 As shown, an intelligent relay device is installed between the communication island and the concentrator. Smart relays such as figure 2 , image 3 As shown, the intelligent core device with internal RAM and program Flash——CEP2002EX microprocessor chip is used as the core device. The storage read-write terminals 6, 7 and 12 of the intelligent core device communicate bidirectionally with the corresponding port of the EEPROM storage chip AT24C64 Connected to store the archives corresponding to the address of each purpose meter; the data receiving and receiving ends 2 and 13 pins pass through image 3 The carrier communication circuit in the upper right corner is coupled with the meter reading circuit connected to the concentrator to listen to the meter reading signal; its communication ports 8, 9 and 11 are connected to image 3 The 485 com...
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