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A Dynamic Password Control Method Applicable to Excavators

A control method and dynamic password technology, applied in the usage of multiple keys/algorithms, transmission systems, electrical components, etc., can solve the problems of complex control systems of excavators, and achieve the effect of improving security and confidentiality

Active Publication Date: 2021-06-04
XCMG EXCAVATOR MACHINERY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The control system of the excavator is relatively complex, and the needs of customers are also diverse. Many operating parameters need to be calibrated on the instrument

Method used

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  • A Dynamic Password Control Method Applicable to Excavators
  • A Dynamic Password Control Method Applicable to Excavators

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Embodiment Construction

[0023] By the following figure 1 Attach figure 2 This invention is described in detail. figure 1 For the flow chart of the invention, attached figure 2 Indicates the input and output port description of the dynamic cryptographic library.

[0024] When the control system generates a related modification instruction, output the OUT to the corresponding device, the device is the same algorithm operation, producing another 8-bit number password code, passing IN with CODE, password verification, verify the pass, otherwise Unable to modify excavator parameters.

[0025] The library file has been counting inside without receiving the stop instruction, where the input variable is received after receiving the modification instruction, and the input value in; the output variable is: Verify output TEST, output 8 digits OUT; The intermediate variables used are: circulating cycle computing variables I, intermediate calculation variables A, B, Middle, password Code.

[0026] details as follows:...

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Abstract

The invention discloses a dynamic password control method suitable for excavators. The method is as follows: when the control system generates relevant modification instructions, output out to the corresponding equipment, and the equipment performs the same algorithm operation to generate another 8-digit password code, password verification of in and code, the operation can only be performed if the verification is passed, otherwise the excavator parameters cannot be modified. The invention adopts a dynamic password instead of a simple password, and improves the security and confidentiality of excavator parameter modification and instruction sending.

Description

Technical field [0001] The present invention is applied to the hydraulic excavator, which is a control method for improving the calibration safety and confidentiality of the excavator parameter, belonging to the technical field of excavators. Background technique [0002] With the rapid advancement of my country's construction machinery, the role of excavators in the field of engineering construction is increasingly obvious, and the status of the construction machinery market is constantly rising and possession. The excavator's control system is more complicated, and the customer's needs are also diverse, and many running parameters need to calibrate on the meter. To prevent parameters from being modified by malicious modification, you need to enter a password to complete the operation. As one of the main independent brand excavator producers, our company has begun mass production to assemble a hydraulic excavator with operating calibration password, but the current password sett...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L9/16H04L29/08
CPCH04L9/16H04L63/0457H04L63/0846H04L67/12
Inventor 魏红敏耿家文刘立祥费树辉苏会杰邢泽成
Owner XCMG EXCAVATOR MACHINERY
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