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Safety control system and method for terminal equipment

A technology of terminal equipment and control system, applied in transmission systems, digital transmission systems, secure communication devices, etc., can solve problems such as malicious manipulation of terminal equipment and damage to the normal operation of IoT terminal equipment, so as to avoid losses, ensure safe operation, Effect of preventing hacker's attack

Pending Publication Date: 2022-07-29
BEIJING BROADSTAR TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the environment of the Internet of Things, especially the Internet of Things terminal equipment of key infrastructure (such as: power grid, transportation, energy), often become the target of hackers, and the main control microcontroller in the terminal equipment is the key target of attack. and other methods to crack the control mechanism of the main control single-chip microcomputer to the peripheral actuators, thereby destroying the normal operation of the IoT terminal equipment, and further even maliciously controlling the terminal equipment

Method used

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  • Safety control system and method for terminal equipment
  • Safety control system and method for terminal equipment
  • Safety control system and method for terminal equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0025] This embodiment proposes a security control system for terminal equipment. The system includes a background management terminal, a main control single-chip microcomputer, a security chip, and a peripheral execution mechanism; The safety chip communicates with the peripheral actuators.

[0026] The background management terminal is used to send the configuration parameters and control commands of the terminal actuator to the security chip through the main control microcontroller in the form of cipher text;

[0027] The security chip is used to decrypt and verify the received ciphertext, and output a control signal to the actuator according to the decryption result to control the actuator to perform corresponding actions.

[0028] In this embodiment, the security chip has the characteristics of anti-cracking and anti-attack, and the professional security operating system it is equipped with uses the GPIO port of the security chip to control the peripheral actuator of the ...

example 1

[0031] Control example 1, with a street light controller (such as figure 2 shown) as an example to illustrate the specific implementation process: the main control single-chip microcomputer and the security chip communicate through the IIC interface, and the security chip controls the switch of the relay through the GPIO port. The street light controller is based on the time rules for turning on and off the street lights set by the centralized management background of the system. When the real-time clock is 18:00, the main control single-chip microcomputer sends the command to turn on the street lights to the security chip. After the security chip receives the command, it parses the command and verifies that it is correct. Then, set the GPIO port to output the street light turn-on control signal and turn on the street light; when the real-time clock is 5 o'clock, the master microcontroller sends the command to turn off the street light to the security chip. After the security ...

example 2

[0032] Control example 2, with motor controller (such as image 3 shown) as an example to illustrate the specific implementation process: the communication chip and the system centrally manage the background networking communication to realize the communication between the background and the main control microcontroller; the main control microcontroller and the security chip communicate through the UART interface; the security chip controls the motor through the PWM interface Rotating speed. The centralized management backend of the system issues the ciphertext command of speed control to the motor controller through the Internet of Things according to the actual working conditions. After the motor controller receives the command, it forwards it to the security chip. The security chip decrypts the control command, and after judging that the command is complete, set the Output PWM control signal to control the speed of the motor.

[0033] In this embodiment, the GPIO port of t...

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PUM

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Abstract

The invention discloses a safety control system and method for terminal equipment. The system comprises a background management end, a master control single-chip microcomputer, a safety chip and a peripheral execution mechanism. The background management end is used for sending configuration parameters and control commands of the terminal execution mechanism to the security chip through the master control single chip microcomputer in a ciphertext mode; and the security chip is used for decrypting and verifying the received ciphertext and outputting a control signal to an execution mechanism according to a decryption result so as to control the execution mechanism to execute a corresponding action. A security chip is used as a core, the security chip is provided with various communication interfaces and general IO ports (GPIO ports), and the security chip is used for safely controlling a peripheral execution mechanism of the Internet of Things terminal equipment, so that the security of the Internet of Things terminal equipment in controlling the peripheral execution mechanism of the Internet of Things terminal equipment is ensured.

Description

technical field [0001] The invention relates to the technical field of equipment safety, and in particular to a terminal equipment safety control system and method. Background technique [0002] Existing IoT terminal devices are generally controlled by their master microcontroller to control peripheral actuators, and the security chip in the device is only used to implement functions such as identity authentication, data encryption and decryption operations, and secure storage. In the Internet of Things environment, especially the Internet of Things terminal equipment of key infrastructure (such as: power grid, transportation, energy) will often become the target of hackers, and the main control microcontroller in the terminal equipment is the key target of attack. Hackers often decompile and other methods to crack the control mechanism of the main control single-chip microcomputer on the peripheral actuators, thereby destroying the normal operation of the terminal equipment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/40
CPCH04L9/0861H04L9/0891H04L9/0894H04L63/0428H04L63/1416H04L2209/12
Inventor 王国荣
Owner BEIJING BROADSTAR TECH DEV
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