Direct-current energy meter for remote charging device

Abstract

The invention discloses a direct-current energy meter for a remote charging device. The direct-current energy meter includes a control module and an acquisition module and an NB-IOT wireless communication module that are electrically connected with the control module, the acquisition module is used for acquiring signals in real time, the control module is used for acquiring electric signals and transmitting the electric signals to the terminal through the NB-IOT wireless communication module, and the control module is further used for acquiring the payment information from the terminal throughthe NB-IOT wireless communication module, and controlling the connection and disconnection of the direct-current energy meter and the remote charging device according to the payment information and the electric signal; the control module is further used for analyzing whether the electric signal is within a preset range or not; when the electric signal is within a preset range, the direct-currentenergy meter is kept the connection with the remote charging device, when the electric signal is not in the preset range, the direct-current energy meter is controlled to be disconnected from the remote charging device. The direct-current energy meter provided by the invention is long in transmission distance and low in energy consumption, the wall penetrating capability is high, and the remote charging device can be effectively protected.

Description

technical field [0001] The invention relates to the technical field of direct current electric energy meters, in particular to a direct current electric energy meter used for a remote charging device. Background technique [0002] DC energy meters are playing an increasingly important role in the fields of solar photovoltaics, electric vehicles, trams, etc. With the development of the Internet of Things, wireless remote energy meter systems have begun to be adopted. In the remote charging device, it is necessary to remotely control the collected electrical signals and the remote charging device. The existing DC energy meters mainly use wireless communication technologies such as ZigBee or WiFi. Existing wireless communication technologies have problems such as high power consumption, short transmission distance, and weak ability to penetrate walls. High power consumption leads to frequent replacement of batteries, resulting in high cost and waste of resources. Due to the s...

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a DC electric energy meter for remote charging device, aiming to solve the problems of high power consumption, short transmission distance and weak wall-penetrating ability of the wireless communication technology of the direct current electric energy meter in the prior art

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