Portable electric energy metering instrument
A kind of electric energy measurement, portable technology, applied in the direction of measuring electric variables, instruments, measuring devices, etc., can solve the problems of unclear electricity consumption of electrical appliances, differences in electricity consumption, etc., and achieve convenient calculation of electricity consumption and calculation of electricity Effect
Inactive Publication Date: 2018-05-15
SICHUAN GANGZHENG ELECTRONICS TECH CO LTD
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Problems solved by technology
[0003] With the development of the electricity market, it is particularly important to accurately measure the amount of electricity consumed by consumers and maintain the economic interests of enterprises and users. Many electrical appliances share the same meter, so the specific use of electricity for each appliance The latter is not clear, and often can only be judged by the rated power of the product, which is quite different from the actual power consumption.
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[0014] The present invention will be further described below in conjunction with the drawings:
[0015] A portable electric energy measuring instrument, comprising: an electric meter box, an electric meter plug and a plug-in board, the front of the electric meter box is provided with an LCD display screen and an operation panel, and the back of the electric meter box is provided with an electric meter plug slot and a plug-in board slot. The meter box is equipped with power detection circuit, clock circuit, watchdog circuit, LCD display circuit, and RS-485 communication circuit.
[0016] A further arrangement of the present invention is that the power detection circuit is divided into an active element and a passive element, and the passive element includes: an inductance L and a capacitance C of an energy storage element;
[0017] The clock circuit adopts a DS1302 clock chip;
[0018] The watchdog adopts the X25045 chip, and the X25045 chip contains a watchdog timer, and the system mo...
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The invention relates to the technical field of devices and instruments, and particularly relates to a portable electric energy metering instrument comprising an electric meter box, an electric meterplug and a plugboard. Full digital design of the electric energy meter is realized through CPU and the electric energy meter has the electric energy metering function. The frequency can be stably received by using the ADE7751 electric energy metering chip and converted into power to be outputted so that the electric quantity can be conveniently calculated, and calculation of the power consumptionof the single electric appliance can be facilitated for the user by the portable design.
Description
Technical field [0001] The invention relates to the technical field of instrumentation, in particular to a portable electric energy meter. Background technique [0002] Measuring instruments originally referred to precision equipment used to measure the pressure, flow, and temperature of water, gas, electricity, and oil. Including thousands of varieties of products, in the last 20 years of the last century, with the increasing development of microelectronics and communication technology. According to the scientific division, modern metrology includes three aspects: scientific metrology, legal metrology, and engineering metrology. The task of scientific metrology is to develop and establish basic metrological standard devices, to ensure the transfer and traceability of measurement values, and to provide basic guarantees for legal metrology and engineering lecturers. The task of legal measurement is to supervise the measurement of important measuring instruments and commodity qua...
Claims
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Inventor 李勇李春华
Owner SICHUAN GANGZHENG ELECTRONICS TECH CO LTD