Ammeter wireless monitoring interface devices and wireless monitoring system

Abstract

The invention relates to an ammeter wireless monitoring system which comprises an ammeter wireless sensor network and a community wireless monitoring center (3). The community wireless monitoring center (3) comprises a central information management control system (31) and a central wireless transmitter (32), and the ammeter wireless sensor network comprises more than one ammeter wireless monitoring interface device (1) and building wireless repeater (2), wherein each ammeter wireless monitoring interface device (1) is connected with a user ammeter and forms a node of the ammeter wireless sensor network, each building wireless repeater (2) forms a convergent node of the ammeter wireless sensor network, and the community wireless monitoring center (3) remotely manages and controls the ammeter by the ammeter wireless sensor network.

Description

technical field [0001] The invention relates to equipment and a system for remote wireless management and control of electric meters, in particular to a wireless monitoring interface device for electric meters and a wireless monitoring system. Background technique [0002] As society's demand for electricity increases day by day, power supply companies increasingly need methods that can effectively monitor and control user electricity meters. The current automatic meter reading technology is mainly divided into two categories: wired and wireless. Due to the complicated installation of wired automatic meter reading technology, high maintenance costs and small coverage, the application of wireless automatic meter reading technology is becoming more and more extensive. Chinese patent application CN1304030A (patent application number is 00114330.1) and CN1414346A (patent application number is 02110461.1) all disclose the remote meter reading system based on wireless, although th...

AI Technical Summary

Problems solved by technology

The current automatic meter reading technology is mainly divided into two categories: wired and wireless. Due to the complicated installation of wired automatic meter reading technology, high maintenance costs and small coverage, the application of wireless automatic meter reading technology is becoming more and more extensive.

Chinese patent application CN1304030A (patent application number is 00114330.1) and CN1414346A (patent application number is 02110461.1) all disclose the remote meter reading system based on wireless, although these systems can carry out the transcription and management of electric meter data, but they can not realize two-way communication, And the cost is higher

Chinese patent application CN101425219A (patent application number 200710056240.3) discloses a smart remote electricity meter based on a wireless sensor network, which includes a dedicated radio frequency unit, a microcontroller unit, a power management unit, a power information collection unit, an external storage unit, a liquid crystal Display unit and fault detection unit; although it can realize the two-way transmission of information between the remote power supply enterprise and the user's electric meter, it requires the user to install or replace the electric meter described in the patent application, which will cause a lot of waste of electric meters; in addition, the patent also Does not have prepayment and anti-stealing functions, and cannot well meet the current application requirements

[0005] 1. The concentrator is connected to several ammeters through PLC, and the power line is affected by the load, which makes the impedance on the line fluctuate greatly, which affects the reliability of the signal; for areas with dense users, there are more ammeters on the same power line , they are in the same broadcast domain, and the signals interfere with each other a lot. In addition, the transmission rate of the power carrier is low, so the real-time performance of monitoring is poor; when the line is powered off, the monitoring center will lose the monitoring of the state of the meter. Give criminals the opportunity to take advantage of the situation; in addition, the power line is restricted by the region, and the power carrier signal is not convenient for cross-regional transmission;

[0006] 2. When using GPRS, PSTN or radio to realize real-time information transmission, it is necessary to rent a public network, and the cost is relatively high;

[0007] 3. The system needs electric meters with PLC and RF modules, which makes the system construction cost higher, and the user must replace the electric meters.

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