Encryption and decryption functions based field service terminal and application method thereof

Abstract

The invention provides an encryption and decryption functions based field service terminal, which comprises a control processing unit, a main-station communication unit, an equipment communication unit, a power supply unit, an input and output unit, a safety unit and a smart card reading and writing unit. The control processing unit is respectively connected with the control processing unit, the main-station communication unit, the equipment communication unit, the power supply unit, the input and output unit, the safety unit and the smart card reading and writing unit. The safety unit is used for completing identity authentication and encryption and decryption of data information when the field service terminal is in communication with a main station and power energy meters, and the smart card reading and writing unit is used for field card writing and recharging of local charge-control smart power energy meters. The encryption and decryption function based field service terminal has the advantages that field service efficiency and quality are improved; the safety unit is added, so that transmission data of the field service terminal cannot be distorted, data confidentiality and integrity cannot be damaged and identities of users cannot be used falsely; and the requirement of power-utilization information acquiring system construction for power consumers can be met basically.

Description

technical field [0001] The invention relates to the field of handheld devices, in particular to a field service terminal based on encryption and decryption functions and an application method thereof. Background technique [0002] The electricity consumption information collection system for power users has been fully unified in 2008. It is a power information collection, processing and real-time monitoring system, which can automatically collect power data, abnormal measurement and power quality monitoring, power consumption analysis and management. , with functions such as relevant information release, distributed energy monitoring, and information interaction of intelligent electrical equipment. In the network architecture of the system, the communication method between the collection terminal and the main station is GPRS wireless public network, and the communication method between the collection terminal and the electric energy meter is generally a power carrier or smal...

AI Technical Summary

Problems solved by technology

In order to prevent the transmission data of the terminal equipment from being tampered with, the confidentiality and integrity of the data being destroyed, and the iden

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