Chain store customer inquiry system
A query system and chain store technology, applied in signal transmission system, wireless system/telephone, electrical signal transmission system, etc., can solve the problems of poor real-time performance, difficult application, high equipment cost, etc.
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[0053] The block diagram of the circuit structure of a chain store customer inquiry system is as follows: figure 2 shown. It consists of a centralized collector and multiple commodity recorders. The centralized collector is composed of a signal sending terminal A, a signal receiving terminal B, a 4G wireless router 2, a keyboard display module 10 and a microcontroller module 1. The commodity recorder is composed of a signal sending terminal A, a signal receiving terminal B and a microcontroller module 1, and the commodity recorder records the information of commodities 11. The centralized controller communicates with the product recorder through the power line. The terminal is the computer management system located on the top layer, which is composed of 4G wireless router, microcontroller module and computer.
[0054] The hardware structures of the power line communication signal sending end A, signal receiving end B, microcontroller module 1 and power supply module 4 in t...
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