Wireless sensor safety communication and anti-leakage positioning method based on region division

Abstract

The invention relates to a wireless sensor safety communication and anti-leakage positioning method based on region division. Massive sensors in a power transmission network are divided according to regions, a central node is used for fusion of sensor data, and the power network data transmission efficiency can be effectively improved. Through application of a State Cryptography Administration cryptographic algorithm suite, a time synchronization verification technique is added to an identity authentication signature algorithm, the system communication safety grade can be effectively increased, and an external hacker can be prevented from invading the network to obtain important information of the power network. Through binding between a private key hash value and position information and updating the private key, leakage of a coordinate mapping table to bring losses to the power network data information can be prevented. Through application of the APIT algorithm, the relative displacement between dispersedly-distributed sensors and the central node of the region is calculated, the coordinates of the central node are combined to calculate the specific position of an alarming sensor, the wireless sensor positioning cost is effectively reduced, and the anti-eavesdropping ability of the power network data can be greatly improved.

Description

technical field [0001] The invention relates to a method for secure communication and anti-leakage positioning in electric power mobile inspection, in particular to a method for secure communication and anti-leakage positioning of wireless sensors based on area division. Background technique [0002] With the rapid development and maturity of computer network technology, communication technology, embedded technology and sensor technology, micro-sensors with perception, computing and communication capabilities and their wireless sensor network WSN (WirelessSensor Network) have attracted people's attention. great concern. WSN integrates sensor technology, embedded computing technology, modern network and wireless communication technology, distributed information processing technology, etc., and can monitor, perceive and collect information of various environments or monitoring objects collaboratively in real time through various integrated micro sensors , Process the informat...

AI Technical Summary

Problems solved by technology

The easiest way is to install a GPS device on the sensor to obtain the location information of the sensor. However, since the number of sensors in the power transmission network is large and the position does not change significantly after installation, it will obviously cost a lot of money to install a GPS module for each sensor. Cost and subsequent maintenance work will be extremely cumbersome

Moreover, the traditional center node positioning method relies on the equipment number to distinguish, identify and locate, and its security is often questioned.

The device number of the central node is fixed, and the device number can be read through a specific program. Once the distribution map of the central node is leaked, the location information of the central node and the sensor will be leaked, and it cannot be modified later unless the hardware device of the central node is replaced.

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