A 1P switch-based power collection system and collection method

By integrating the current sampling module and voltage simulation module on the 1P switch, combining the microprocessor and the metering chip, the power acquisition is achieved under the condition of voltage-free loop access, solving the problem that the 1P intelligent low-voltage switch cannot collect power, and the equipment Small, easy to operate and maintain, suitable for a wide range of applications.

CN114035040BActive Publication Date: 2025-01-14FUJIAN NETPOWER TECH DEV CO LTD +2
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Patent Information

Application Number
CN202111445451.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-11-30
Publication Date
2025-01-14
Estimated Expiration
2041-11-30

AI Technical Summary

Technical Problem

The existing 1P intelligent low-voltage switch cannot collect power without voltage circuit access, which limits its application in smart home electrical equipment. Moreover, the 2P intelligent low-voltage switch is large in size and has many wiring, which makes it troublesome to operate and maintain, and is difficult to install in users. On the original distribution meter box.

Method used

A power acquisition device based on 1P switch is designed, including a current sampling module, a voltage simulation module, a metering chip and a microprocessor. The power acquisition is achieved through the current zero-crossing and voltage waveform DAC units, which can be performed when the voltage-free loop is connected. Calculate power, energy and effective values, and perform real-time voltage calibration and data interaction through uplink devices.

Benefits of technology

It realizes power acquisition without voltage loop access on the 1P switch, reducing the equipment size and operation and maintenance complexity, and is suitable for the transformation of 1P intelligent low-voltage switches, expanding the application range, and simplifying the installation and maintenance process.

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Abstract

The present invention discloses a power collection device and a power collection method based on a 1P switch, which utilizes a DAC value generation and calibration method at each point of a standard 220V voltage waveform and an analog voltage waveform generation method to solve the problem of power collection on a 1P switch without voltage loop access, and realizes power, energy, effective value, power, etc. calculation on the 1P switch.
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Citation Information

Patent Citations

  • Electric quantity acquisition system based on 1P switch

    CN216747994U