CN202916338U - Device for monitoring and recording electric power of electric equipment in real time - Google Patents
Device for monitoring and recording electric power of electric equipment in real time Download PDFInfo
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- CN202916338U CN202916338U CN 201120542972 CN201120542972U CN202916338U CN 202916338 U CN202916338 U CN 202916338U CN 201120542972 CN201120542972 CN 201120542972 CN 201120542972 U CN201120542972 U CN 201120542972U CN 202916338 U CN202916338 U CN 202916338U
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Abstract
Provided is a device for monitoring and recording the electric power of electric equipment in real time. The device can be used to detect current power consumption of electric equipment, display current, voltage and power and record the current, voltage and power on an SD card point by point, the SD card is provided with an FAT file system, and data is recorded on the SD card in the form of a TXT file which can be directly opened on a PC. The device is provided with a network interface and a built-in Web server which can be directly accessed through an IE browser at a PC terminal, and the power detection range can be changed by current transformer replacing and software setting.
Description
Technical field
The utility model relates to a kind of electric power Real-Time Monitoring and pen recorder of monitoring record equipment, particularly a kind of electrical appliance.
Background technology
Among the present prior art, have a lot of smart jacks to have record electrical appliance power consumption situation function, but most product is only supported the record of power consumption cumulative amount, can't realize consumer electricity consumption situation real time record.Need the occasion of real time record electrical appliance power consumption for some, this series products can't play a role.In order to reduce production costs, general power detection all adopts electric resistance partial pressure to detect the voltage and current value that mode that voltage and resistance in series be converted into voltage with electric current is obtained electrical appliance, there is certain risk in such method, be easy to cause short circuit and electric leakage, and be not easy sensing range is done greatly.
The utility model content
For overcoming the above problems, this experiment is novel to be provided a kind of and can detect in real time the electrical appliance electric power, by data storage device data is stored, and these data can directly read by PC, and support the power monitor that LAN (Local Area Network) is directly accessed.
The technical scheme that its technical matters that solves the utility model adopts is: use the voltage transformer (VT) summation current transformer to be converted into the following alternating voltage of 3.3V with electrical appliance voltage with by electric current, by real effective AC-DC conversion chip alternating voltage is converted to DC voltage again.Single-chip microcomputer STM32F103RBT6 gathers magnitude of voltage, in internal calculation, and by LCD12864 demonstration current power value.On the registering instrument with the SD deck, single-chip microcomputer operates SD by the SPI mouth, real time record time, electrical appliance voltage, electric current and power, registering instrument is also with the ENC28J60 chip simultaneously, the network enabled access function, can directly log in dynamograph by PC IE browser, and read current all electrical appliances performance number.
A kind of electrical appliance electric power Real-Time Monitoring and pen recorder connect current transformer and voltage transformer (VT) by main control chip by analog switch, and the real effective conversion chip is connected with main control chip, and is provided with display screen and memory interface or network connection interface.
Power detection calculates by electric current and voltage, and mutual inductor and real effective conversion chip are all adopted in the detection of electric current and voltage, and institute's power scale is real power.
It is class that main control chip adopts STM32F103, and by SPI mouth operation SD card, the employed system of SD card is FAT.
The extended network interface is arranged, built-in Web server, embedded webpage can directly be accessed by LAN (Local Area Network) at the PC end.
When measuring the consumer power of different stage, only need change mutual inductor and carry out software set, need not change other circuit.
The effect that can reach of the present utility model has:
1, Real-Time Monitoring electrical appliance power consumption situation shows by LCD, but Real Time Observation.
2, can power be recorded in the SD card by the time pointwise by the acquisition time interval is set, and the SD jig has the FAT file system, with txt file form record, PC can directly read the upper data of card to data on card, and maximum support storage space reaches the 8GB capacity.
3, have the LAN (Local Area Network) access function, can log in dynamograph and show the current power value by PC IE browser, realize remote monitoring, on the PC any software need not be installed, only need to key in dynamograph IP address at address field and get final product, convenient easy-to-use.
4, can detect all consumers of different stage by the different mutual inductor of welding, only need to get final product in software placement change parameter, need not change other part.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is circuit structure diagram of the present utility model.
Embodiment
In Fig. 1, what voltage acquisition was used is the current type voltage transformer (VT), and elementary the series connection by resistance directly received on the civil power, in the secondary access weak electricity measuring circuit.Current acquisition adopts straight-through current transformer.Power voltage supply adopts mini-switch power source, 5V1A output.Network interface can be by in the direct access to LAN of existing routing and swiching machine, and the SD card is supported SD and the TF card (the TF card need be joined cutting ferrule) of 64MB-8G.
After the inferior grading mistake LM324 discharge circuit of voltage and current mutual inductor is converted into voltage, send into RMS-DC converter chip ADR736 by analog switch CD4501 timesharing, the ADC by STM32 gathers again.Acquisition time is by software control.Device software: system adopts the timeslice poll, adds that FATFS and UIP support SD card and network function.
Claims (2)
1. an electrical appliance electric power Real-Time Monitoring and pen recorder, it is characterized in that: connect current transformer and voltage transformer (VT) by main control chip by analog switch, the real effective conversion chip is connected with main control chip, and is provided with display screen and memory interface or network connection interface.
2. electrical appliance electric power Real-Time Monitoring as claimed in claim 1 and pen recorder is characterized in that: it is class that main control chip adopts STM32F103, and by SPI mouth operation SD card, the employed system of SD card is FAT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120542972 CN202916338U (en) | 2011-12-22 | 2011-12-22 | Device for monitoring and recording electric power of electric equipment in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120542972 CN202916338U (en) | 2011-12-22 | 2011-12-22 | Device for monitoring and recording electric power of electric equipment in real time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202916338U true CN202916338U (en) | 2013-05-01 |
Family
ID=48164641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120542972 Expired - Fee Related CN202916338U (en) | 2011-12-22 | 2011-12-22 | Device for monitoring and recording electric power of electric equipment in real time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202916338U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155514A (en) * | 2014-08-01 | 2014-11-19 | 周玉梅 | Power tester used for computer equipment |
| CN105227638A (en) * | 2015-09-07 | 2016-01-06 | 国家电网公司 | A kind of embedded web server for data monitoring |
| CN107506889A (en) * | 2017-07-07 | 2017-12-22 | 珠海格力电器股份有限公司 | Energy data processing method and device, energy processor and energy processing system |
| CN110045181A (en) * | 2019-05-02 | 2019-07-23 | 福建省产品质量检验研究院 | AC/DC contactor coil power dissipation tester |
-
2011
- 2011-12-22 CN CN 201120542972 patent/CN202916338U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155514A (en) * | 2014-08-01 | 2014-11-19 | 周玉梅 | Power tester used for computer equipment |
| CN105227638A (en) * | 2015-09-07 | 2016-01-06 | 国家电网公司 | A kind of embedded web server for data monitoring |
| CN107506889A (en) * | 2017-07-07 | 2017-12-22 | 珠海格力电器股份有限公司 | Energy data processing method and device, energy processor and energy processing system |
| CN110045181A (en) * | 2019-05-02 | 2019-07-23 | 福建省产品质量检验研究院 | AC/DC contactor coil power dissipation tester |
| CN110045181B (en) * | 2019-05-02 | 2021-02-09 | 福建省产品质量检验研究院 | AC/DC contactor coil power consumption tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20151222 |
|
| EXPY | Termination of patent right or utility model |