Self-starting method and parameter self-calibration method of metering chip
A metering chip and self-starting technology, which is applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of metering chips not accumulating power, power supply out of synchronization, etc., to avoid disputes, improve program execution speed, and save power Effect
Inactive Publication Date: 2015-01-14
WAHLAP TECH CO LTD
View PDF5 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Due to the technical standard requirements of the smart module electric energy meter, the power supply of the communication module should be isolated from the strong electricity inside the electric energy meter to prevent safety risks such as electric shock caused by touching the antenna of the module. Since the communication module has many pins, it is generally necessary to sample the strong electricity from the perspective of cost. The power supply of the metering chip is isolated from the main single-chip microcomputer and the communication module, and the metering chip and the microcontroller are isolated on both sides, resulting in asynchronous power failure of the two, and the internal parameters of the metering chip are not properly configured in time, resulting in rapid accumulation of electricity or non-accumulation of electricity question
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] refer to figure 1 , the metering chip of the electric meter is composed of a plurality of programmable amplifier (PGA) acquisition terminals 1, ADC circuit 2, emulator 3, clock 4, first register 5 and second register 6, and the power grid is collected through its multiple PGA acquisition terminals The high voltage and current signals of the power line are converted into digital signals readable by the emulator through the ADC circuit, and the power information is obtained by the emulator sampling and calculation, and the power information is classified and stored in the first register and the second register, and through the clock according to the first period T A Calibrate the emulator.
[0028] In a preferred example, the first register is configured to randomly access power information, and the second register is configured to access calibrated power information.
[0029] In a preferred example, when the metering chip is reset by power supply, at least one calibrat...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a self-starting method of a metering chip. The method comprises the steps that a first register is arranged to store and collect the consumption amount of strong electricity voltage or current of a power grid power line; a second register is arranged to store and meter running parameters of the metering chip, wherein the running parameters of the metering chip come from the electric quantity information configured by a clock; when the metering chip is reset through a power source, at least part of running parameters of the metering chip in the second register are controlled to be moved to the first register, the running parameters of the metering chip in the first register are recognized through an emulator in the metering chip, and the metering chip is made to start.
Description
technical field [0001] The embodiment of the present invention relates to a self-starting and self-checking method of a metering chip for an electric meter, so that the embodiment of the metering chip can realize the self-starting function. Background technique [0002] Due to the technical standard requirements of the smart module electric energy meter, the power supply of the communication module should be isolated from the strong electricity inside the electric energy meter to prevent safety risks such as electric shock caused by touching the antenna of the module. Since the communication module has many pins, it is generally necessary to sample the strong electricity from the perspective of cost. The power supply of the metering chip is isolated from the main single-chip microcomputer and the communication module, and the metering chip and the microcontroller are isolated on both sides, resulting in asynchronous power failure of the two, and the internal parameters of the...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01R22/00G01R35/04
Inventor 杨草田赵鹏飞裘德伟
Owner WAHLAP TECH CO LTD