Test method for smart meter embedded applications
There is no limit to creativity, and the instrument is invented. Today we introduce a national invention patent for invention - a test method for embedded applications of smart meters. The patent was filed by the State Grid Corporation and was issued an authorization announcement on November 27, 2018.
Description
The invention relates to a testing method, in particular to a testing method for a smart meter embedded application.
Background of the invention
The smart meter, which is a smart terminal of the smart grid, is not a power meter in the traditional sense. In addition to the metering function of the basic power consumption of the traditional power meter, it also has electrical information storage adapted to the use of the smart grid and new energy sources. The intelligent metering function, the user-side control function, the two-way data communication function of various data transmission modes, and the anti-stealing function, etc., represent the development direction of the intelligent terminal of the energy-saving smart grid end user in the future.
With the development of smart grids, the demand for intelligent user terminals in the world is also increasing. According to statistics, in the next five years, with the construction of smart grids in countries around the world, the number of smart meters installed in the world will be as high as 2 Billion only. Similarly, in China, as the country's strong smart grid construction progresses, the demand for smart meters as a user terminal will also increase substantially. It is conservatively expected that the market will have a demand of around 170 million. Some of the U.S. government’s grants for upgrading the domestic grid are designed to enable 13% of US households (18 million households) to install smart meters in the next three years. In Europe, Italy and Sweden have completed the deployment of advanced metering infrastructure, replacing all common meters with smart meters. France, Spain, Germany and the United Kingdom are expected to complete the promotion and application of smart meters in the next 10 years.
The traditional smart meter is charged by the user to charge the smart IC card and input into the meter. The meter can supply power. When the battery is used up, the power is automatically turned off. The new smart meter has perfected and conveniently realized the network purchase. It's as easy and convenient as recharging a mobile phone.
The past and present of the smart meter industry is the first thing investors need to grasp when thinking about this problem: With China's proposal to build a national smart grid concept, the smart meter directly matched with it has become the focus of attention. The smart energy meter is a new type of metering equipment. In addition to the basic metering function, the smart meter is also an all-electronic meter with a hardware clock and a complete communication interface. The characteristics of reliability, high security level and large storage capacity are in full compliance with the requirements of “energy saving and environmental protection” in the future development of today's society.
Smart meters are not only used as a simple energy metering device, but also a versatile data acquisition terminal, which has been widely used. At present, the smart meter is based on the MCU as a control unit, and the peripheral circuit is composed of a metering chip, etc., which has good linearity and stability, and has many advantages such as low power consumption, fast voltage and frequency response speed, and high measurement accuracy. The large-scale multi-function of electric energy meter is completed by embedded software. As the main tool of electric energy measurement, it has an important influence on measurement accuracy, stability and functionality. There is therefore a need for a method of testing smart meter embedded software to ensure that these superior performance are not missing.
Summary of the invention
In view of the deficiencies of the prior art, the object of the present invention is to provide a test method for a smart meter embedded application, which not only focuses on the debugging work of the electric energy meter embedded software, but uses a black box method and a smart meter function. Modular testing is a new, controllable, application-specific test method for smart meter embedded software reliability testing.
The object of the present invention is achieved by the following technical solutions: The present invention provides a test method for a smart meter embedded application, the improvement being that the smart meter memory chip communicates with an analog memory test board system, Methods include memory chip testing and metrology chip testing.
Compared with the closest prior art, the technical solution provided by the present invention has the following excellent effects: (1) The test method provided by the present invention is mainly for the smart meter embedded software, and can comprehensively and meticulously analyze the smart electric energy meter embedded software. Reliability.
(2) The existing software black box test method does not analyze the intelligent power meter software fault to form a targeted test case. The invention designs an efficient generation method of the smart energy meter software test case, and improves the smart energy meter software fault. The trigger rate.
(3) The current software test only tests the function and communication protocol of the system, and does not test the reliability of the data storage. The invention proposes to effectively control the quality of the energy meter software and eliminate the possible safety of the energy meter software. Hidden dangers have solved the problem of non-uniformity of its functions.
There is no limit to creativity, and the instrument is invented. Today we introduce a national invention patent for invention - a test method for embedded applications of smart meters. The patent was filed by the State Grid Corporation and was issued an authorization announcement on November 27, 2018.
Description
The invention relates to a testing method, in particular to a testing method for a smart meter embedded application.
Background of the invention
The smart meter, which is a smart terminal of the smart grid, is not a power meter in the traditional sense. In addition to the metering function of the basic power consumption of the traditional power meter, it also has electrical information storage adapted to the use of the smart grid and new energy sources. The intelligent metering function, the user-side control function, the two-way data communication function of various data transmission modes, and the anti-stealing function, etc., represent the development direction of the intelligent terminal of the energy-saving smart grid end user in the future.
With the development of smart grids, the demand for intelligent user terminals in the world is also increasing. According to statistics, in the next five years, with the construction of smart grids in countries around the world, the number of smart meters installed in the world will be as high as 2 Billion only. Similarly, in China, as the country's strong smart grid construction progresses, the demand for smart meters as a user terminal will also increase substantially. It is conservatively expected that the market will have a demand of around 170 million. Some of the U.S. government’s grants for upgrading the domestic grid are designed to enable 13% of US households (18 million households) to install smart meters in the next three years. In Europe, Italy and Sweden have completed the deployment of advanced metering infrastructure, replacing all common meters with smart meters. France, Spain, Germany and the United Kingdom are expected to complete the promotion and application of smart meters in the next 10 years.
The traditional smart meter is charged by the user to charge the smart IC card and input into the meter. The meter can supply power. When the battery is used up, the power is automatically turned off. The new smart meter has perfected and conveniently realized the network purchase. It's as easy and convenient as recharging a mobile phone.
The past and present of the smart meter industry is the first thing investors need to grasp when thinking about this problem: With China's proposal to build a national smart grid concept, the smart meter directly matched with it has become the focus of attention. The smart energy meter is a new type of metering equipment. In addition to the basic metering function, the smart meter is also an all-electronic meter with a hardware clock and a complete communication interface. The characteristics of reliability, high security level and large storage capacity are in full compliance with the requirements of “energy saving and environmental protection” in the future development of today's society.
Smart meters are not only used as a simple energy metering device, but also a versatile data acquisition terminal, which has been widely used. At present, the smart meter is based on the MCU as a control unit, and the peripheral circuit is composed of a metering chip, etc., which has good linearity and stability, and has many advantages such as low power consumption, fast voltage and frequency response speed, and high measurement accuracy. The large-scale multi-function of electric energy meter is completed by embedded software. As the main tool of electric energy measurement, it has an important influence on measurement accuracy, stability and functionality. There is therefore a need for a method of testing smart meter embedded software to ensure that these superior performance are not missing.
Summary of the invention
In view of the deficiencies of the prior art, the object of the present invention is to provide a test method for a smart meter embedded application, which not only focuses on the debugging work of the electric energy meter embedded software, but uses a black box method and a smart meter function. Modular testing is a new, controllable, application-specific test method for smart meter embedded software reliability testing.
The object of the present invention is achieved by the following technical solutions: The present invention provides a test method for a smart meter embedded application, the improvement being that the smart meter memory chip communicates with an analog memory test board system, Methods include memory chip testing and metrology chip testing.
Compared with the closest prior art, the technical solution provided by the present invention has the following excellent effects: (1) The test method provided by the present invention is mainly for the smart meter embedded software, and can comprehensively and meticulously analyze the smart electric energy meter embedded software. Reliability.
(2) The existing software black box test method does not analyze the intelligent power meter software fault to form a targeted test case. The invention designs an efficient generation method of the smart energy meter software test case, and improves the smart energy meter software fault. The trigger rate.
(3) The current software test only tests the function and communication protocol of the system, and does not test the reliability of the data storage. The invention proposes to effectively control the quality of the energy meter software and eliminate the possible safety of the energy meter software. Hidden dangers have solved the problem of non-uniformity of its functions.
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