CN205194046U - Electric energy meter data acquisition system - Google Patents

Abstract

The utility model provides a design belongs to power electronic and communication technology field, and it comprises system management center, data concentrator, terminal acquisition ware and ammeter four layers of electric energy meter data acquisition system. Wherein adopt the internet network to carry out the communication between the first layer and the second floor, adopt wireless sensor network to communicate between the second floor and the third layer, carry out the communication through the RS -485 bus between third layer and the fourth layer. The utility model discloses a long -range automatic reading and the management function of electric quantity. Its administrative center can accurately acquire the relevant information of ammeter in real time to carry out corresponding processing. In addition, according to the demand, the concentrator can carry out a moon data reading, day data reading, real -time data reading, parameter setting (including remote control ) and ability timing supervision ammeter state and carry out corresponding processing.

Description

A kind of automatic meter reading system

Technical field

The utility model belongs to power electronics and communication technical field, particularly relates to a kind of existing Internet network and technology of wireless sensing network of utilizing and realizes the device transmitted electric energy meter data.

Background technology

Traditional street lighting control mode is not owing to having remote data acquisition and communication function, Centralized Monitoring cannot be realized, so run, operating result can not centralized watch, record and statistics, whether correct operation, work is normal etc. cannot know to only have the equipment by means understanding operation irregularities such as extensive work personnel tours, citizen's repair calls in time for equipment.Utilize manual patrol to there is the shortcomings such as workload is large, handling failure efficiency is low, and not in real time, data acquisition-and-recording accurately, simple fuzzy statistics work can only be done, not reach the requirement of quantitative management.In order to can better for electric administrative department provides accurate, timely, strong management of power use data, strengthen the management of power use, improve power supply benefit, adapt to the needs of market economic development, adopt automatic meter reading system to realize the informationization of power department data and robotization imperative.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art.The use of native system greatly can reduce the labor capacity of power department, power distribution automation is advanced to power department, the time-shared charge scheme realized in planning, for electric power enterprise development and provide quality goods or brilliant and will play very large effect, improve the modern management level of electric system simultaneously, have good social and economic benefits.

The utility model is achieved in the following ways:

A kind of automatic meter reading system mainly can be divided into four layers: system administrative center, data concentrator, terminal collector and ammeter.Ground floor system administrative center fixes IP, client host and database server by proxy server and forms, and is responsible for data and stores and provide man-machine interface; Second layer data concentrator is responsible for the data of collecting multifunction electric meter and acquisition terminal, and stores; Third layer terminal collector is responsible for forwarding concentrator order to measurement point, and forwards measurement point data to concentrator; 4th layer is measurement point, is generally the single-phase electric meter of band RS-485 interface.Gordian technique of the present utility model is: adopt technology of wireless sensing network to realize the data transmission of data concentrator and terminal collector, adopt the Internet communication technology that the energy data that data concentrator stores is uploaded to system administrative center, the remote auto achieving electricity is copied and accepted and management function.Within the system, adopt Internet network to carry out communication between ground floor and the second layer, between the second layer with third layer, adopt technology of wireless sensing network to communicate, between third layer and the 4th layer, all carry out communication by RS-485 bus.

Administrative center of the present utility model can obtain ammeter for information about real-time and accurately, and processes accordingly, ensures the normal work of whole electrical network.In addition, according to demand, concentrator to carry out that moon data are copied and accepted, day data copy and accept, real time data is copied and accepted, the process of optimum configurations (comprising Long-distance Control) and active upload abnormal information.Meanwhile, concentrator record is required to be correlated with monthly magazine data, daily paper data and setup parameter, and timing supervision ammeter state.

Accompanying drawing explanation

Fig. 1 is general structure schematic block diagram of the present utility model, in figure: 1 is Internet network; 2 is radio sensing network module; 3 is RS-485 bus module; 4 is proxy server; 5 is workstation; 6 is database server; 7 is system administrative center; 8 is data concentrator; 9 is terminal collector; 10 is ammeter.

Fig. 2 is electric energy meter data acquisition terminal theory diagram, in figure: 11 is clock circuit module; 12 is pulse processing circuit; 13 power control circuits; 14 is memory module; 15 is keyboard operation module; 16 is duty display module.

Embodiment

An exemplifying embodiment of the present utility model is provided below in conjunction with accompanying drawing.

In FIG, radio sensing network module 2 selects the CC2420 radio-frequency (RF) transceiver of Chipcon company; System administrative center 7 is made up of as workstation 5, database server 6 three modules fixing IP proxy server 4, client host; The low-power consumption that data concentrator 8 selects S3C2410 and the CirrusLogic company of ARM company to produce, 16 ethernet controller CS8900A of function admirable, realize the connection of system and Internet network 1; Terminal collector 9 adopts PICl8LF4620 single-chip microcomputer, and terminal can realize the function such as display of collection to No. 16 watt-hour meter information, storage, transmission and duty; The single-phase electric meter of band RS-485 interface selected by ammeter 10; Clock circuit module 11 selects DS12887A clock chip; Pulse processing circuit 12 forms primarily of filtering circuit, Schmidt trigger and optocoupler 4n25; Power control circuit 13 selects AT89C51 single-chip microcomputer to coordinate relay to realize long-range switching electric control; Memory module 14 selects AT24C32; Keyboard operation module 15 selects 3 × 4 common single-chip microcomputer keyboards; Duty display module 16 selects liquid crystal display 12864.

Utility model works principle is: administrative center's main frame of automatic meter reading system sends the order of reading watt-hour meter or arranging watt-hour meter parameter to data concentrator by Internet, the Frame issued by client host by concentrator is taken apart, is decomposed into the instruction of brow-down position machine (i.e. ammeter).And according to the requirement of host computer Frame, data acquisition or optimum configurations are carried out to ammeter.After concentrator receives the responsive data frame of slave computer, generate and main control computer is reported to the acknowledgement frame of client host or the uploading data frame of active.Administrative center can obtain ammeter for information about real-time and accurately, and processes accordingly, ensures the normal work of whole electrical network.

The utility model can be used for remote automatic acquisition, data centralization, the function such as electricity consumption statistical study and comprehensive inquiry to electric energy meter data.

Claims (1)

1. an automatic meter reading system, is characterized by: system is divided into four layers, and ground floor system administrative center is formed by fixing the proxy server of IP, client host and database server, is responsible for data and stores and provide man-machine interface; Second layer data concentrator is responsible for the data of collecting multifunction electric meter and acquisition terminal, and stores; Third layer terminal collector is responsible for forwarding concentrator order to measurement point, and forwards measurement point data to concentrator; 4th layer is measurement point, adopt the single-phase electric meter of band RS-485 interface, technology of wireless sensing network is adopted to realize the data transmission of data concentrator and terminal collector between the second layer and third layer, adopt the Internet communication technology that the energy data that data concentrator stores is uploaded to system administrative center between ground floor and the second layer, the remote auto realizing electricity is copied and accepted and management function.