Intelligent instrument circuit board intellectual property protection device and method

Abstract

The invention provides an intelligent instrument circuit board intellectual property protection device and method. In the device, an industrial control computer board is used for controlling plugging of programmable logic device monitoring circuit boards from motherboard sockets and read-write of a FLASH memory. Motherboards are used for realizing bus mode electrical connection and mechanical structure connection among the industrial control computer board, the sockets of the circuit boards of which the intellectual property needs to be protected in instruments and the motherboards. The circuit board sockets on the motherboards are used for fixedly plugging the sockets of the circuit boards of which the intellectual property needs to be protected on the motherboards via butting and realizing electrical connection of a power supply and an electric signal between the motherboards. With application of the aforementioned scheme, static protection of the intellectual property can be realized, and dynamic protection of execution time can also be realized so that acquisition or reverse engineering of FPGA or DSP core intellectual property codes on all the circuit boards of the instruments by illegal users can be prevented, and thus the intellectual property of the intelligent test instruments can be protected and the intelligent test instruments can be prevented from being imitated.

Description

technical field [0001] The invention belongs to the technical field of intellectual property protection of circuit boards of intelligent instruments, and in particular relates to a device and method for protecting intellectual property rights of circuit boards of intelligent instruments. Background technique [0002] Intellectual property protection is very important in the research and development of modern instruments. Only by protecting intellectual property rights can enterprises survive well. Nowadays, most of the intelligent measuring instruments adopt intelligent control technology, embedded with intelligent processors such as industrial computer or single-chip microcomputer, the internal circuit board has many FPGA and DSP chips, and many core algorithms and programs such as signal processing must be executed through FPGA or DSP. These core logic codes or execution codes representing the key intellectual property rights of the instrument can be encrypted and stored i...

AI Technical Summary

Problems solved by technology

Disadvantages of the existing technology: when the instrument is working normally, the user cannot be prohibited from obtaining the input and output status of the core processing chip FPGA or DSP of the circuit board through a logic analyzer and other equipment

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