Intelligent electric energy meter system based on Bluetooth communication and communication method thereof

Abstract

The invention discloses an intelligent electric energy meter system based on Bluetooth communication and a communication method thereof. The system comprises an electric energy meter, an intelligent miniature circuit breaker, a terminal module and a Bluetooth module. The Bluetooth module adopts a Bluetooth module mode or an SOC mode; when the Bluetooth module is adopted, the Bluetooth module comprises a first Bluetooth module and a second Bluetooth module, and the electric energy meter is connected with the intelligent miniature circuit breaker and a slave device through the first Bluetooth module; the electric energy meter is connected with the terminal module through the first Bluetooth module and the second Bluetooth module in sequence; when an SOC mode is adopted, the electric energy meter is connected with the intelligent miniature circuit breaker, the slave machine and the terminal module through self-integrated Bluetooth. When the electric energy meter works in a one-master multi-slave mode, the electric energy meter serves as a host and initiates data connection with the intelligent miniature circuit breaker or other slave devices actively; and when the electric energy meter is used as a slave, the electric energy meter receives a connection request from the terminal module to perform Bluetooth communication. The system has the advantages of high safety and reliability,low power consumption, good stability and the like.

Description

technical field [0001] The invention mainly relates to the technical field of smart electric energy meters, in particular to a bluetooth communication-based intelligent electric energy meter system and a communication method thereof. Background technique [0002] The new generation of electric energy meters (IR46 modular electric energy meters) has higher and higher requirements for data communication. In my country's existing electric energy meter technology system, the communication part is currently mainly composed of communication modules (power line carrier, micro-power wireless, etc.), RS485 From the point of view of practical application, the two methods of RS485 and infrared have obvious defects, such as RS485 wiring construction is difficult, communication speed is low; infrared communication is unreliable and slow, these two technologies are obviously not suitable for the future According to the development trend of energy meter technology, a high-speed and reliable ...

AI Technical Summary

Problems solved by technology

The frequency of Bluetooth transmission data is not high, and it consumes less energy in the process of transmitting data. However, in order to respond to the connection request in time, the polling access during the waiting process is very energy-consuming.

[0009] (2) The Bluetooth connection process is cumbersome

The Bluetooth connection process involves multiple information transmission and verification processes. On the surface, it does not seem to make users feel the complicated connection procedures. However, the repeated data encryption and decryption process and the identity verification process required for each connection But it is a great waste of equipment computing resources

[0010] (3) Bluetooth security issues

In addition, the security of the encryption algorithm used in the process of Bluetooth data transmission needs to be improved

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