CN202362372U

CN202362372U - Intelligent electric energy meter

Info

Publication number: CN202362372U
Application number: CN2011204845494U
Authority: CN
Inventors: 杨建明; 黄苏云; 邵柳东
Original assignee: Ningbo Sanxing Electric Co Ltd
Current assignee: Ningbo Sanxing Medical and Electric Co Ltd
Priority date: 2011-11-29
Filing date: 2011-11-29
Publication date: 2012-08-01
Anticipated expiration: 2021-11-29

Abstract

The utility model discloses an intelligent electric energy meter, which comprises a voltage sampling module, a current sampling module, a power module, a display module, an external storage module, a communication module and an SOC (system on chip) metering chip, wherein the SOC metering chip integrates an analog front end, an electric energy metering module, a single chip microcomputer, a real-time clock, a FLASH storage module and an LCD (liquid crystal display) driving module. The voltage sampling module, the current sampling module, the power module, the display module, the storage module and the communication module are connected with the SOC metering chip. As the SOC metering chip integrates the analog front end, the electric energy metering module, the single chip microcomputer, the real-time clock, the FLASH storage module and the LCD driving module, the number of chips of the electric energy meter is decreased, integration level is improved, a circuit is simpler, production efficiency is high, cost is reduced, and market competition is facilitated.

Description

Intelligent electric energy meter

Technical field

The utility model relates to a kind of intelligent electric energy meter.

Background technology

Existing intelligent electric energy meter mainly is made up of three parts: the ic for energy metering part that with the computation chip is the center; With peripheral circuits such as single-chip microcomputer, storer, RTC (real-time clock), LCD driving, LCD demonstration, Communication Control is the control circuit part at center; With the power circuit part.The problem that exists is: because the chip that uses is too many, integrated level is not high, and complicated circuit has increased the difficulty of producing; Particularly cost is high, and the design cycle is long, is unfavorable for market competition, also increases burden to the user.

The utility model content

The utility model technical matters to be solved is: provide a kind of use chip few, integrated level is high, the intelligent electric energy meter that production efficiency height and cost are low.

The utility model addresses the above problem the technical scheme that is adopted: a kind of intelligent electric energy meter; Comprise voltage sample module, current sample module, power module, display module, outer memory module and communication module, it has also comprised the SOC computation chip of AFE(analog front end), electric energy metrical module, single-chip microcomputer, real-time clock, FLASH memory module and LCD driver module integrated; Said voltage sample module, current sample module, power module, display module, memory module and communication module all are connected with the SOC computation chip.

Described SOC computation chip is single-phase metering SOC chip V9401.

Compared with prior art; The advantage of the utility model is: the SOC computation chip is integrated AFE(analog front end), electric energy metrical module, single-chip microcomputer, real-time clock, FLASH and LCD driver module; The number of chips of electric energy meter is reduced, and integrated level improves, and circuit is simpler; Production efficiency height and cost reduce, and help market competition.

Description of drawings

Fig. 1 is the structural representation of the utility model intelligent electric energy meter.

Embodiment

Embodiment to the utility model further describes below in conjunction with accompanying drawing.

As shown in the figure, the utility model intelligent electric energy meter comprises voltage sample module, current sample module, power module, display module, outer memory module and communication module; The voltage sample module realizes the sampling to voltage signal; The current sample module realizes the sampling to current signal; Power module provides power supply to electric energy meter system; Display module is a LCD display, is used for various data, the parameter of electric energy meter are shown; Outer memory module is EEPROM, can not lose after being used to deposit each association and the power down of electric energy meter; Communication module comprises RS485 communication interface and infrared communication interface, utilizes these two kinds of communication modes to communicate with the outside; It has also comprised the SOC computation chip of AFE(analog front end), electric energy metrical module, single-chip microcomputer, real-time clock, FLASH memory module and LCD driver module integrated; AFE(analog front end) is used for the processing of front end data; The electric energy metrical module is measured electric energy and is sent to single-chip microcomputer to data; Single-chip microcomputer receives the data of electric energy metrical module transmission and data is handled; Real-time clock provides clock signal, and the FLASH memory module provides the program space, and the LCD driver module drives the LCD display operate as normal; Said voltage sample module, current sample module, power module, display module, memory module and communication module all are connected with the SOC computation chip.

The SOC computation chip that uses in the present embodiment is single-phase metering SOC chip V9401, and integrated single-chip microcomputer is enhancement mode 8052 single-chip microcomputers in this chip.

Claims

1. intelligent electric energy meter; Comprise voltage sample module, current sample module, power module, display module, outer memory module and communication module, it is characterized in that: it has also comprised the SOC computation chip of AFE(analog front end), electric energy metrical module, single-chip microcomputer, real-time clock, FLASH memory module and LCD driver module integrated; Said voltage sample module, current sample module, power module, display module, memory module and communication module all are connected with the SOC computation chip.

2. intelligent electric energy meter according to claim 1 is characterized in that: described SOC computation chip is single-phase metering SOC chip V9401.