CN202066908U - Three-in-one electricity metering device - Google Patents
Three-in-one electricity metering device Download PDFInfo
- Publication number
- CN202066908U CN202066908U CN201120116152XU CN201120116152U CN202066908U CN 202066908 U CN202066908 U CN 202066908U CN 201120116152X U CN201120116152X U CN 201120116152XU CN 201120116152 U CN201120116152 U CN 201120116152U CN 202066908 U CN202066908 U CN 202066908U
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- China
- Prior art keywords
- module
- cpu
- carrier
- current
- communication interface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
Abstract
The utility model discloses a three-in-one electricity metering device, which comprises a CPU (central processing unit). A communication interface module, a GPRS (general packet radio service) module, a metering chip, a switch input and output interface module, a display module, a press key and a memory are connected to the CPU. A RS232 (recommend standard 232) module, an infrared receiving and transmitting module, a RS 485 module and a carrier module are connected to the communication interface module. A current and voltage sampling module is connected to the metering chip, and the carrier module and the current and voltage sampling module are both connected with a power supply. By means of the three-in-one electricity metering device, repeated construction, resource wasting and compatible difficulty can be avoided, and the problems of poor stability and low efficiency in the prior art in terms of terminal detection are resolved.
Description
[technical field]
The utility model relates to a kind of three-in-one electricity consumption measuring apparatus.
[background technology]
At present, concentrator, distribution transformer monitoring, load control terminal separate independent design, and separately building increases cost, and maintenance workload is big, has wasted ample resources.In addition, different terminals need insert different backstage main websites, so also increases cost, and is simultaneously difficult in maintenance.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, and provide a kind of and avoided overlapping construction, the waste resource, the three-in-one electricity consumption measuring apparatus of compatible difficulty solves in the prior art the low problem with poor stability of efficient when detecting at terminal.
For achieving the above object, the utility model has adopted following technical proposal:
A kind of three-in-one electricity consumption measuring apparatus includes CPU, is connected with communication interface modules on CPU, the GPRS module, computation chip, switch input/output interface module, display module, button and storer are connected with the RS232 module on the described communication interface modules, infrared reception transmitter module, the RS485 module, carrier module is connected with the current-voltage sampling module on computation chip, described carrier module all is connected with power supply with the current-voltage sampling module.
The beneficial effects of the utility model are:
1, this device can allow that various functions link with main website by same communication port.When using three novel terminals to combine, possessed multiple measure monitor, power switch, communication module etc. with functions such as the control of loading, distribution transformer monitoring, centralized automatic meter-readings, big electricity consumer, common transformer, low-voltage power user etc. have been managed.
2, this device has been set up an integrated main website platform, and three terminals are crossed the control data corporation that communication port enters power supply department respectively, and entering marketing system after treatment again needs reason with the pipe that supplies electricity consumption.This device has and economizes on resources, compatible easily, detection efficiency is high and advantage such as good stability.
[description of drawings]
Fig. 1 is a structural drawing of the present utility model.
[embodiment]
A kind of three-in-one electricity consumption measuring apparatus includes CPU, is connected with communication interface modules 1 on CPU, GPRS module 2, computation chip 3, switch input/output interface module 4, display module 5, button 6 and storer.
Described CPU adopts dominant frequency to reach i.MX27L technical grade chip, the high capacity internal memory of 64M and the 128M Flash storage chip of 400MHZ.CPU is provided with 2 groups of USB mouths, 1 group of Ethernet mouth, and 7 groups of UART.
GPRS module 2 adopts the GSM0308 module, and this module is the communication module of a technical grade, stable performance, low-power consumption product, 3V-4.5V service area.Go out the 3.8V power supply by the voltage stabilizing of MIC29302BT chip and supply with the GSM0308 module, guarantee the stability of power supply.Because the signal voltage of GSM0308 module is 1.8V,, meet the level requirement of IO plate interface so use the ADG3308 level transferring chip to carry out the signal level conversion.
Described communication interface modules 1 comprises 1 group of carrier communication interface, 1 group of GPRS communication interface, 1 group of infrared interface, the RS232 interface of 1 group of local maintenance, 3 groups of RS485 interfaces.Be connected with RS232 module 7 on the communication interface modules 1, infrared reception transmitter module 8, RS485 module 9, carrier module 10.The RS485 circuit adopts the 65LBC184 chip to handle the RS485 signal, when the RS485 differential signal behind the A and the input of B end of RS485 interface, the rs 232 serial interface signal that is treated to through the 65LBC184 chip is transferred to CPU by light-coupled isolation.In addition,, adopt voltage dependent resistor (VDR) RT and thermistor RV protection port in the circuit, make port can bear the alternating voltage of the electrostatic impact of 8KV and 380V and do not damage for the RS485 port security.
Described carrier module 10 adopts three carrier chip and three groups of carrier transmitting-receiving circuit that model is PL3201B-64, realizes the three-phase carrier communication.The carrier wave transtation mission circuit mainly comprises power amplification circuit, and power amplification circuit comprises four amplifying triodes.Signal sends a command to carrier chip by CPU, carrier chip sends carrier signal from transmit port, through behind the amplification of power amplification circuit and the shaping filter, be coupled on the low-voltage power line then, finish the transmission of carrier signal by pickup coil by one group of electric capacity and resistance.The carrier wave receiving circuit mainly is to form the shunt-resonant circuit with one group by inductance and electric capacity, and resonance is 120KHZ with the centre frequency, finishes the bandpass filtering to useful signal, and signal enters into the CPU module through carrier communication module then, is carrying out the data analysis processing.
Be connected with current-voltage sampling module 11 on computation chip 3, described carrier module 10 all is connected with power supply with current-voltage sampling module 11, and feed circuit adopt the three-phase and four-line power supply, but two-phase or single phase power supply.Computation chip adopts the special-purpose computation chip ATT7022B metering of high precision three-phase electric energy, carry out current sample and carry out voltage sample by the electric resistance partial pressure mode by current transformer, the electric current that samples, voltage signal enter the ATT7022B chip and carry out data such as analytical calculation draws correct forward and reverse meritorious electric weight, forward and reverse four-quadrant is idle, requirement.
On switch input/output interface module 4, be connected with switching value input circuit 13, pulse input circuit 14, switch controlling output circuit 15 is connected with impulse output circuit 12 on computation chip 3.Switch input/output interface module 4 uses the light-coupled isolations transmission, before not inserting CPU, uses latch chip 74HC573 to carry out metadata cache, solve control at a high speed its with the different problems of at a slow speed peripheral hardware.
Described display module 5 is a LCD display.
Described storer can be SDRAM or NAND FLASHE or EEPROM.
This device is to cooperatively interact by a series of different hardware devices and software platform.Load control system utilization load control terminal carries out large user's electricity consumption and dedicated transformer management with the Control Software main website platform of loading, factory's station telemetry system manages transformer station's power transmission and transformation by factory's station telemetry terminal system and station telemetering software main website of factory platform, the distribution transformer monitoring system manages by distribution transformer monitoring terminal and the distribution transformer monitoring software main website platform Allocation transformer to common transformer, also has automatic meter reading system responsible for the low-voltage power user management of reading the ammeter directly by concentrator and centralized automatic meter-reading software main website platform.
Claims (4)
1. three-in-one electricity consumption measuring apparatus, it is characterized in that including CPU, on CPU, be connected with communication interface modules (1), GPRS module (2), computation chip (3), switch input/output interface module (4), display module (5), button (6) and storer are connected with RS232 module (7) on the described communication interface modules (1), infrared reception transmitter module (8), RS485 module (9), carrier module (10) is connected with current-voltage sampling module (11) on computation chip (3), described carrier module (10) all is connected with power supply with current-voltage sampling module (11).
2. a kind of three-in-one electricity consumption measuring apparatus according to claim 1, it is characterized in that on switch input/output interface module (4), being connected with switching value input circuit (13), pulse input circuit (14), switch controlling output circuit (15) is connected with impulse output circuit (12) on computation chip (3).
3. a kind of three-in-one electricity consumption measuring apparatus according to claim 1 is characterized in that described display module (5) is LCD display.
4. a kind of three-in-one electricity consumption measuring apparatus according to claim 1 is characterized in that also being provided with USB interface on CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120116152XU CN202066908U (en) | 2011-04-20 | 2011-04-20 | Three-in-one electricity metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120116152XU CN202066908U (en) | 2011-04-20 | 2011-04-20 | Three-in-one electricity metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202066908U true CN202066908U (en) | 2011-12-07 |
Family
ID=45060768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120116152XU Expired - Lifetime CN202066908U (en) | 2011-04-20 | 2011-04-20 | Three-in-one electricity metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202066908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364632A (en) * | 2013-06-25 | 2013-10-23 | 乐清市人和电气科技有限公司 | Intelligent digital display instrument |
| CN109713786A (en) * | 2017-10-26 | 2019-05-03 | 上海置信电气股份有限公司 | A kind of power distribution station intelligence distribution transformer terminals |
-
2011
- 2011-04-20 CN CN201120116152XU patent/CN202066908U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364632A (en) * | 2013-06-25 | 2013-10-23 | 乐清市人和电气科技有限公司 | Intelligent digital display instrument |
| CN109713786A (en) * | 2017-10-26 | 2019-05-03 | 上海置信电气股份有限公司 | A kind of power distribution station intelligence distribution transformer terminals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |