CN201210322Y

CN201210322Y - Pre-payment electrical energy meter

Info

Publication number: CN201210322Y
Application number: CNU200820049926XU
Authority: CN
Inventors: 罗兴友
Original assignee: GUANGDONG ORIENT COMMUNICATION TECH Co Ltd
Current assignee: GUANGDONG ORIENT COMMUNICATION TECH Co Ltd
Priority date: 2008-06-24
Filing date: 2008-06-24
Publication date: 2009-03-18
Anticipated expiration: 2018-06-24

Abstract

This utility model refers to a prepayment electric meter, including a main body of electric meter and an external display device. The external display device is placed at the position in the room convenient for user to check by user selection and is connected with the main body of electric meter through a Zigbee wireless communication network. The main body of electric meter includes a main control unit circuit and an electric power metering module, a current failure control module, a Zigbeee network communication module, a GPRS/CDMA network communication module and a LCD display module respectively connected with the main control circuit; further includes a power supply module connected with each part. This utility model makes the electric meter be capable of transmitting the charge information through a mobile network and pre-paying through adding the GPRS/CDMA network communication module and the Zigbeee network communication module in the current electric meter, which is suitable for the electric department to manage. The additional display device through the Zigbee network technology is added to the utility model, which is convenient for user to check each parameter of electric utilization and use the electric with plan and save the resource.

Description

A kind of pre-paying kilowatt-hour meter

Technical field

The utility model relates to a kind of ammeter, is specifically related to the ammeter that a kind of Zigbee of utilization transmitted data on network, pre-payment use, list/three-phase electricity is general.

Background technology

Power supply department measures each user power utilization amount by ammeter, and mechanical ammeter in the past needs manually to check meter to the doorstep, has increased the power department handling cost, can utilize power line carrier technology remote meter reading or pre-paying kilowatt-hour meter to solve this problem now.Pre-paying kilowatt-hour meter also has various ways, for example the patent No. is the IC-card pre-paying kilowatt-hour meter that CN99224295.9 mentions, the patent No. is to mention the pre-paying kilowatt-hour meter that utilizes paging control among the CN99116904.2, and the patent No. is the code type pre-payment ammeter of mentioning in 200520090889.3.These ammeters complete machine has disposed a display screen, shows power consumption parameter, and general subregion is installed concentratedly at building basement etc. and located.Along with the raising with people's living standard of developing rapidly of industry, household electrical appliance such as air-conditioning, TV are more and more universal, and civilian and industrial electric weight continues to increase, the electric power resource relative deficiency of China, and using electricity wisely also puts on the agenda.In some cities electric weight has been carried out the time sharing segment pricing mode, for the user, will be concerned about a lot of power consumption parameter, for example, what period of electricity price is cheap, what period height, in the power consumption and the electricity charge of certain period, want to check that these parameters must arrive placement ammeter place and check, very trouble, and can not reach live effect, make the desalination of user's saving consciousness.

The utility model content

That the problem that the utility model need solve provides is that a kind of pre-payment is used, can allow the user check every power consumption parameter, the ammeter that list/three-dimensional is general constantly easily.

At the above problem that needs solution, the technical scheme that the utility model is taked is: a kind of pre-paying kilowatt-hour meter is provided, comprises ammeter body and external display device; Described ammeter body comprises the main control unit circuit, is made up of the storer of central processor CPU and storage CPU supplemental characteristic; Reach the electric energy metrical module, outage control module, Zigbee network communication module, GPRS/CDMA wireless communication module, the LCD display module that are connected with governor circuit respectively; Also comprise with each several part all being connected, be used for providing the power module of power supply to whole inner function circuit.

Described external display device selects to be placed on the position of conveniently checking within doors by the user, be connected by the Zigbee wireless communication networks with the ammeter body, comprise central processor CPU and the storer, liquid crystal drive IC, the Zigbee network communication module that are connected with CPU, and be connected LCDs with liquid crystal drive IC.

Adopt integrated chip CC2430 in the Zigbee network communication module in described ammeter body and the external display device.

The utility model has increased GPRS/CDMA network communication module and Zigbee network communication module in existing ammeter, make ammeter transmit paying information by the mobile network, pre-payment is used, be beneficial to the power department management, again by the other display device of Zigbee network technology collocation, make the user can check every power consumption parameter easily, can planned supply and use of electric power, economize on resources.

Description of drawings

Fig. 1 is that the utility model principle is formed schematic block diagram;

Fig. 2 is that external display device of the present utility model is formed schematic block diagram;

Fig. 3 is the synoptic diagram that communicates to connect of the utility model and control center.

Embodiment

Below in conjunction with accompanying drawing the utility model is elaborated:

As Fig. 1, the utility model comprises ammeter body and external display device, and described external display device is selected to be placed on the position of conveniently checking within doors by the user, is connected by the Zigbee wireless communication networks with the ammeter body; Electric energy metrical module, outage control module, Zigbee network communication module, GPRS/CDMA network communication module, LCD display module that the ammeter body comprises the main control unit circuit and is connected with governor circuit respectively; Also comprise the power module that all is connected with each several part.

As shown in Figure 2, described external display device comprises central processor CPU and the storer, button, liquid crystal drive IC, the Zigbee network communication module that are connected with CPU, and is connected LCDs with liquid crystal drive IC.

As shown in Figure 3, administrative center is by GPRS/CDMA wireless communication mode and the communication of ammeter body, the transmission prepayment information or the information of paying the fees, the ammeter body sends these information and client's power information the external display device of client to by the Zigbee network again, and the user can be checked easily constantly.

In actual applications, the ammeter body can equally be installed and used with existing ammeter, is convenient to the management of power department, and external display device can be installed to the position of conveniently checking by user's request.After the user pays tariff in advance to power department, the ammeter operate as normal, power department will urge charge information to send ammeter to by the GPRS/CDMA network when electricity charge remaining sum is lower than certain value, after ammeter receives information, send information to external display device by Zigbee network communication module, notify the user to pay dues.If ammeter receives arrearage information, will start the outage control module and cut off the electricity supply.

When the ammeter operate as normal, also can send information about power to external display device by Zigbee network communication module, band CPU and storer in the external display device can calculate information about power and convert the demonstration of electricity charge information to.If power department is the timesharing price, each time period electricity consumption unit price of demonstration, total price can also be set, and stores historical electricity consumption data and check at any time for the user.

Claims

1, a kind of pre-paying kilowatt-hour meter comprises ammeter body and external display device, it is characterized in that: described external display device is selected to be placed on the position of conveniently checking within doors by the user, is connected by the Zigbee wireless communication networks with the ammeter body; Electric energy metrical module, outage control module, Zigbee network communication module, GPRS/CDMA network communication module, LCD display module that the ammeter body comprises the main control unit circuit and is connected with governor circuit respectively; Also comprise the power module that all is connected with each several part;

Governor circuit, it comprises the storer of single-chip microcomputer and storage single-chip microcomputer supplemental characteristic;

The electric energy metrical module, the signal of its input end sampling power circuit, output terminal output electric energy measurement data is to single-chip microcomputer;

The GPRS/CDMA wireless communication module, exchanges data is carried out in one end and outside, and the other end is connected to the serial data mouth of single-chip microcomputer;

Outage control module, single-chip microcomputer receive outside outage control signal, control the closed of the built-in relay of ammeter or disconnect connection or the disconnection of controlling the subscriber's line phase line;

The LCD display circuit is directly driven by single-chip microcomputer, shows ammeter parameters data;

Power circuit is used for providing power supply to whole inner function circuit;

Zigbee network communication module is used for and the communication of external LCD display device, each continuous data of transmission ammeter body.

2, pre-paying kilowatt-hour meter according to claim 1 is characterized in that: described external display device comprise single-chip microcomputer and the storer that is connected with single-chip microcomputer, button, liquid crystal drive IC, Zigbee network communication module, the LCDs that is connected with liquid crystal drive IC, with the power module that all is connected with top.

3, pre-paying kilowatt-hour meter according to claim 2 is characterized in that: adopt integrated chip CC2430 in the Zigbee network communication module in described ammeter body and the external display device.