CN202486185U

CN202486185U - Multi-rate and multifunctional power meter

Info

Publication number: CN202486185U
Application number: CN201220121368XU
Authority: CN
Inventors: 彭世健
Original assignee: YUEQING HUAJIAN ELECTRONIC TECHNOLOGY CO LTD
Current assignee: JIANGXI HJATIS POWER INDUSTRY CO., LTD.
Priority date: 2012-03-27
Filing date: 2012-03-27
Publication date: 2012-10-10
Anticipated expiration: 2022-03-27

Abstract

A multi-rate and multifunctional power meter solves the problem that a clock module of an existing multifunctional power meter is not precise enough. The multi-rate and multifunctional power meter comprises a clock module, a control module and a signal acquisition module. The clock module is connected with the control module, and an HT1381 chip is adopted by the clock module and is used for providing dates and time to the control module. The signal acquisition module is connected with a controller and is used for acquiring three-phase voltage and three-phase current data. The controller is used for reading data on the signal acquisition module and calculating current electricity parameters and electricity energy, and calculates electricity charge according to different rates with combination of time provided by the clock module. The multi-rate and multifunctional power meter has the advantages can accurately provide the time and the dates for a system by adopting the HT1381 chip and facilitates the system to accurately calculate a total electricity charge in various time periods. The multi-rate and multifunctional power meter has the advantages of being small in cost, high in accuracy, stable in performance and the like.

Description

Multiple rate multifunctional electric meter

Technical field

The utility model relates to a kind of many rates metering field, is specifically related to a kind of multiple rate multifunctional electric meter.

Background technology

A lot of enterprises and institutions; Or plant area need measure electric energy and be used as internal examination usefulness, and because different time sections, the price of the electricity charge is also different; So examination just can not be simple with how much the calculating of electric degree, and must be electric energy and price product summation.So just need a kind of full to the brim, peak, multifunctional meter flat, paddy of dividing to measure electric energy, be used as reference.Obviously traditional electric energy meter can not satisfy present demand.And existing other multifunctional electric meters are kept watch on and are analyzed though can accomplish electric parameter measurement, the quality of power supply, and its precision at clock module but is not very high, so when total electric energy of adding up in a period of time, often there is error.

Summary of the invention

For solving the not enough problem of clock module degree of accuracy of existing multifunctional electric meter in the background technology, the utility model provides a kind of multiple rate multifunctional electric meter.

The technical scheme of the utility model is: a kind of multiple rate multifunctional electric meter; Comprise power module, communication module, clock module, control module, display module and signal acquisition module; Described clock module links to each other with control module; The chip of described clock module adopts the HT1381 chip, is used for to control module date and time being provided; Described signal acquisition module links to each other with controller; Be used to gather three-phase voltage and three-phase current data, described controller is used to read the data on the signal acquisition module, and calculates current electric parameter and electric energy; And the time that combines clock module to provide, calculate the electricity charge by different rates; Described communication module links to each other with control module, is used for related electrical parameters is uploaded to PC computer backstage; Described display links to each other with controller, is used to receive the computational data of controller, shows electrical quantity; Described power panel links to each other with control module, signal acquisition module, display module, communication module, is used to provide working power.

As a kind of improvement of the utility model, set up filtering circuit in the circuit of described power module.

Another kind as the utility model improves, and described filtering circuit is a π type RC filtering circuit.

Another kind as the utility model improves, and the control chip of described control module adopts the ATMEGA64 chip.

The beneficial effect of the utility model is, adopts the HT1381 clock chip, can be accurately for system provide time and date, and make things convenient for system to calculate total electric energy expense of each different time sections accurately, user-friendly.And the utlity model has that cost is little, accuracy is high, steady performance.

Description of drawings

Accompanying drawing 1 is the theory diagram of multiple rate multifunctional electric meter.

Embodiment

Below in conjunction with accompanying drawing the utility model embodiment is described further:

By shown in Figure 1; A kind of multiple rate multifunctional electric meter; Comprise power module, communication module, clock module, control module, display module and signal acquisition module; Described clock module links to each other with control module, and the chip of described clock module adopts the HT1381 chip, is used for to control module date and time being provided; Described signal acquisition module links to each other with controller; Signal acquisition module comprises ATT7022 chip, current transformer and voltage transformer (VT); Be used to gather three-phase voltage and three-phase current data; The control chip of described control module adopts the ATMEGA64 chip, and described controller is used to read the data on the signal acquisition module, and calculates current electric parameter and electric energy; And the time that combines clock module to provide, internal processes divides eight periods to calculate the electricity charge by four kinds of different rates (point, peak, flat, paddy); Described communication module links to each other with control module; Described communication module adopts 485 chips; Be used for related electrical parameters is uploaded to PC (Personal Computer personal computer) computer backstage, can write down the electric energy of trimestral four kinds of rates continuously, and have time display function; Described display links to each other with controller, is used to receive the computational data of controller, shows electrical quantity; Described power panel links to each other with control module, signal acquisition module, display module, communication module, is used to provide working power, has set up filtering in the circuit of described power module, circuit specifically, described filtering circuit is a π type RC filtering circuit.Power module specially is the anti-interference π type RC filtering circuit that increased, and makes total system can keep out the ringing pulse test of 4KV.The beneficial effect of the utility model is, adopts the HT1381 clock chip, can be accurately for system provide time and date, and make things convenient for system to calculate total electric energy expense of each different time sections accurately, user-friendly.And the utlity model has that cost is little, accuracy is high, steady performance.

Every technician's notice: though the utility model is described according to above-mentioned embodiment; But the invention thought of the utility model is not limited in this utility model; The repacking of any utilization inventive concept all will be included in this patent scope of patent protection.

Claims

1. answer the rate multifunctional electric meter for one kind; It is characterized in that: comprise power module, communication module, clock module, control module, display module and signal acquisition module; Described clock module links to each other with control module; The chip of described clock module adopts the HT1381 chip, is used for to control module date and time being provided; Described signal acquisition module links to each other with controller; Be used to gather three-phase voltage and three-phase current data, described controller is used to read the data on the signal acquisition module, and calculates current electric parameter and electric energy; And the time that combines clock module to provide, calculate the electricity charge by different rates; Described communication module links to each other with control module, is used for related electrical parameters is uploaded to PC computer backstage; Described display links to each other with controller, is used to receive the computational data of controller, shows electrical quantity; Described power panel links to each other with control module, signal acquisition module, display module, communication module, is used to provide working power.

2. multiple rate multifunctional electric meter according to claim 1 is characterized in that having set up filtering circuit in the circuit of described power module.

3. multiple rate multifunctional electric meter according to claim 2 is characterized in that described filtering circuit is a π type RC filtering circuit.

4. multiple rate multifunctional electric meter according to claim 1 is characterized in that the control chip of described control module adopts the ATMEGA64 chip.