Power grid safety supervision detection device based on intelligent electric meter
A technology of smart meter and detection device, applied in the direction of measurement device, measurement of electricity, measurement of electricity variables, etc., can solve the problems of complex circuit, high price, single function, etc., to reduce losses, facilitate monitoring, and reduce the cost of preventing electricity theft. Effect
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Publication Date
- 2015-03-18
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 Figure 2 Figure 3
Abstract
Description
technical field
[0001] The invention relates to the technical field of power grid safety monitoring and protection, in particular to a power grid safety monitoring detection device based on a smart meter. Background technique
[0002] With the continuous and rapid growth of our country's economy, industrial electricity consumption has increased significantly, and some enterprises have increased the phenomenon of stealing electricity year by year in order to seek illegal benefits and reduce production costs. Due to the large number of applications of electronic energy meters equipped with anti-stealing chips, the traditional method of stealing electricity by changing lines in the meter has been basically controlled, so some units have adopted a more bold method of stealing electricity, directly leading the wires in front of the meter Or cut off the external circuit of electric energy meter, promptly electric current does not pass through electric energy meter, electric energy...
Examples
Embodiment Construction
[0013] Attached below figure 1 ~ attached image 3 The present invention is described in detail below.
[0014] Such as figure 1 As shown, the current wireless acquisition module 1 of the present invention communicates with the smart meter module 3 through the Bisbee network transmitter 2, and communicates with the inspection and monitoring computer 5 through the GPRS / CDMA network transmitter 4.
[0015] A front-of-the-meter current detection module is installed in the current wireless acquisition module.
[0016] The circuit composition of the current detection module in front of the meter of the present invention:
[0017] Such as figure 2 As shown, the current sampling circuit 1.6 is successively connected with the effective value conversion circuit 1.5 and the voltage amplifying circuit 1.4, and the voltage amplifying circuit is connected with the A / D sampling circuit 1.3 and then connected with the microcontroller 1.2, and the microcontroller and the wireless transmi...