A centralized reading communicator for electric meter reading

Abstract

The invention discloses a centralized meter reading communicator for electrical meter reading. The centralized meter reading communicator comprises a shell, a power supply module, a 4G module, a photoelectric conversion module and a main control module are arranged in the shell, the 4G module is used for communicating with a remote server, the photoelectric conversion module is used for communicating with an electrical meter reading acquisition device through optical fibers, the main control module is used for communication control, the 4G module is electrically connected with the main control module, a differential receiver for receiving differential signals is electrically connected onto the main control module, and a matcher for matching with a network is electrically connected between the differential receiver and the photoelectric conversion module. According to the centralized meter reading communicator, the 4G module is connected onto the main control module, so that the 4G module conveniently and rapidly communicates with the remote server, the differential receiver, the matcher and the photoelectric conversion module are sequentially electrically connected onto the main control module, and optical fiber communication between the photoelectric conversion module and the electrical meter reading acquisition device is facilitated. The centralized meter reading communicator serves as a relay communication device between the electrical meter reading acquisition device and the remote server, relay speed is high, and data transmission is facilitated.

Description

【Technical field】 [0001] The invention belongs to the technical field of equipment, in particular to a centralized reading communicator for electric meter reading. 【Background technique】 [0002] The smart grid is the intelligence of the power grid. It mainly uses terminal sensors to form an instant network interaction between users and between users and grid companies, so as to realize real-time and high-speed (high-time) data reading. speed), two-way (two-way) effect, and improve the comprehensive efficiency of the power grid as a whole. The goal of the smart distribution network is to digitize and intelligentize every operation and maintenance link at the end of the distribution network that needs to be monitored, controlled, and managed, and to interact and integrate data through a networked information communication platform to make the operation of the distribution network The management has changed from a "static" mode to a "dynamic" mode, and has the characteristics...

AI Technical Summary

Problems solved by technology

[0005] 1. The data transmission rate of GPRS / CDMA in the wireless public network is about 10kb / s; the transmission rate of low-voltage power line communication is lower, about 1kb / s

[0006] 2. The GPRS / CDMA of the wireless public network belongs to the second-generation communication technology. The communication technology is immature and will be gradually eliminated, so there are many blind spots in the signal coverage; the power line carrier communication has an almost unpredictable topology structure, and there are communication islands

[0007] 3. Due to the technical model of the GPRS / CDMA of the wireless public network itself, the data transmission may be dropped or falsely online, and it cannot be self-diagnosed and healed. It can only be reconnected or the whole machine is restarted.

Power line carrier communication has problems such as high attenuation, low impedance, harmonic interference, etc., resulting in poor real-time performance and stability of data communication; the communication distance of the twisted pair network is short, and a router needs to be added to enhance the signal at a distance of about 50 meters, and the wire is copper wire. Data transmission is susceptible to external influence and interference

[0008] 4. Similar products in other industries, such as 4G routers and fiber optic converters, have not been developed for the interface and requirements of low-voltage power collection equipment, and cannot be used directly. Secondary technology development is required to increase product costs

[0009] 5. Existing GPRS / CDMA communication equipment needs to select different models and configure corresponding parameters according to different network operators and network standards before it can be used, which is cumbersome to use and has no compatibility; twisted pair network communication uses five types of eight-core wires, The material is copper wire, which cannot be paralleled with high-voltage power lines at close distances. It is easily affected by electromagnetic waves, and there are hidden dangers. It needs to be routed separately, and the construction is troublesome. In addition, the twisted pair wire materials are expensive, and the cost of input materials is high.

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