Internet of Things intelligent meter safety system and implementation method

Abstract

The invention discloses an Internet of Things intelligent meter safety system and an implementation method. The problems that existing meter hardware and software have security holes, communication encryption and decryption security is not high, and the efficiency ratio is low are solved. The system comprises a meter end and a cloud end which are in communication connection, the meter end comprises an MCU controller, the MCU controller comprises a safe world part and a non-safe world part, a trusted execution environment is deployed in the safe world part, and a non-safe environment is deployed in the non-safe world part. A security kernel module, a startup loading module, an OTA upgrading module, a security service module, a security driving module and a security API interface module arearranged in the trusted execution environment, and a user application CA module and a non-security kernel module are arranged in the non-security environment. Information between the meter end and thecloud end is communicated in an asymmetric and symmetric encryption and decryption combined mode. Safety protection is carried out on meter hardware, software and communication, so that the hardwareis prevented from being controlled, the software is prevented from being cracked, and information is prevented from being stolen.

Description

technical field [0001] The invention relates to the technical field of meter security, in particular to an Internet of Things smart meter security system and an implementation method. Background technique [0002] With the development of Internet of Things technology, the smart meter industry has realized wireless remote monitoring, including data collection and uploading, local storage, abnormal monitoring, remote upgrade, valve control, etc. The current mainstream solution uses wireless communication modules to exchange data with application platforms. Due to considerations of cost and operation and maintenance, the safety part is not paid much attention to. Most of the meter devices on the market do not have safety protection measures. are exposed to attackers. [0003] Metering equipment usually uses an MCU without a secure core architecture to execute code on the bare metal, without a secure software architecture, and without a trusted MCU internal execution environmen...

AI Technical Summary

Problems solved by technology

[0013] The present invention mainly solves the security loopholes in the meter hardware and software in the prior art, as well as the low security and low efficiency of communication encryption and decryption, and provides an Internet of Things smart meter security system and its implementation method

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