An Embedded Software Semi-simulation Test Device for Electric Energy Meter

Abstract

The invention provides a semi-simulation device for testing electric energy meter embedded software. The semi-simulation device for testing the electric energy meter embedded software comprises an electric energy meter control unit, an embedded software test platform and a peripheral simulation computer, wherein the embedded software test platform is connected with the control unit; the electric energy meter control unit serves as a host machine for a target machine and the embedded software test platform; the peripheral simulation computer comprises a peripheral environment simulation module required by the target machine; a test tool operates on the embedded software test platform; the embedded software test platform is connected with the control unit through a bus to perform test execution, test monitoring and test result recording and analyzing; the peripheral environment simulation module comprises modules such as a programmable signal generator, a press button, a display, infrared communication and an indicating lamp; the peripheral environment simulation module is connected with the control unit through an external interface circuit of the peripheral simulation computer; and the peripheral environment simulation module is connected with the embedded software test platform through an RS485 communication interface. The semi-simulation device for testing the electric energy meter embedded software solves the problem of inconvenience caused by that external interactive equipment is required during test of the electric energy meter software, and improves the measuring efficiency.

Description

technical field [0001] The invention relates to the field of electric energy meter embedded software testing. Background technique [0002] The electric energy meter is not only a simple electric energy measuring instrument, but also a multifunctional data acquisition terminal, which has been widely used. At present, the electronic energy meter uses MCU as the control unit, and the peripheral circuit is composed of metering chips. It has good linearity and stability, low power consumption, fast voltage and frequency response, and high measurement accuracy. Most of the functions of the electric energy meter are completed by embedded software. As the main tool for electric energy measurement, it has an important impact on the measurement accuracy, stability and functionality. The difference between software testing in the embedded software life cycle and general software testing is that the former needs to adopt a cross-testing method: the test tool runs on the host computer,...

AI Technical Summary

Problems solved by technology

[0003] Deficiencies in the prior art: the test of the embedded software of the electric energy meter depends on the target machine (the control unit of the electric energy meter) and the external interactive equipment, and the electric energy meter control unit and the external interactive equipment often need to be remade during the test, and the test efficiency is low and the cycle is long

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