CN204302353U - A kind of power detection system based on Hall element - Google Patents
A kind of power detection system based on Hall element Download PDFInfo
- Publication number
- CN204302353U CN204302353U CN201420777225.3U CN201420777225U CN204302353U CN 204302353 U CN204302353 U CN 204302353U CN 201420777225 U CN201420777225 U CN 201420777225U CN 204302353 U CN204302353 U CN 204302353U
- Authority
- CN
- China
- Prior art keywords
- voltage
- current sensor
- tested instrument
- conversion chip
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a kind of power detection system based on Hall element, microcontroller is connected with reference voltage source circuit, voltage conversion chip I, LED display, voltage-current sensor I, voltage-current sensor II, voltage-current sensor n respectively, voltage conversion chip II is connected with voltage conversion chip I, and tested instrument I, tested instrument II, tested instrument n correspond to voltage and current sensor I, voltage and current sensor II, voltage and current sensor n connects.Beneficial effect is: adopt Hall voltage sensor and Hall current sensor, achieve in measuring system, in real time the electricity consumption situation of the tested instrument of monitoring.Utilize Hall effect to measure, the main current supply circuit of supervisory circuit and tested instrument is completely isolated, so can not bring any impact to the duty of tested instrument.This system schema can be widely used in the environment that need carry out non-intrusion type high-accuracy voltage, current monitoring, has application and popularization value.
Description
Technical field
Utility model relates to a kind of power detection system based on Hall element, for monitoring the electricity consumption situation of tested instrument in real time.
Background technology
In existing voltage, current measurement, the modes such as more employing mutual inductor and shunt, we know that voltage transformer (VT) is only applicable to the power frequency measurement of 50Hz, and shunt must obtain portion of electrical current from loop, cannot isolate with tested loop.Adopt Hall element to measure in the design, and Hall element is a kind of magnetic field sensor made according to Hall effect, it combines mutual inductor and shunt and advantage, the weak point simultaneously overcome again.Adopt Hall voltage sensor and current sensor to have good measuring accuracy, measuring process is completely isolated with the main current supply circuit of tested inertia type instrument, and can realize carrying out voltage to main current supply circuit, current status measuring ability accurately in real time.
Summary of the invention
In view of the situation of prior art, the utility model relates to a kind of power detection system based on Hall element, and object is that tested current supply circuit carries out non-invasive isolation measurement, obtains accurate voltage, current detecting data.
The utility model for achieving the above object, the technical scheme adopted is: a kind of power detection system based on Hall element, comprise tested instrument I, tested instrument II, tested instrument n, also comprise microcontroller, reference voltage source circuit, voltage conversion chip I, voltage conversion chip II, LED display, voltage and current sensor I, voltage and current sensor II, voltage and current sensor n, microcontroller respectively with reference voltage source circuit, voltage conversion chip I, LED display, voltage-current sensor I, voltage-current sensor II, voltage-current sensor n connects, voltage conversion chip II is connected with voltage conversion chip I, tested instrument I, tested instrument II, tested instrument n corresponds to voltage and current sensor I, voltage and current sensor II, voltage and current sensor n connects.
The utility model has following beneficial effect:
(1) native system adopts Hall voltage sensor and Hall current sensor, achieves in measuring system, in real time the electricity consumption situation of the tested instrument of monitoring.This supervisory system has multiple passage, accurately can monitor magnitude of voltage and the current value of multiple instrument simultaneously.
(2) system adopts Hall voltage sensor and Hall current sensor, and namely utilize Hall effect to measure, the main current supply circuit of supervisory circuit and tested instrument is completely isolated, so can not bring any impact to the duty of tested instrument.This system schema can be widely used in the environment that need carry out non-intrusion type high-accuracy voltage, current monitoring, has application and popularization value.
Accompanying drawing explanation
Fig. 1 is that system of the present utility model connects block diagram;
Fig. 2 is systems axiol-ogy process flow diagram of the present utility model.
Embodiment
As Fig. 1, shown in 2, a kind of power detection system based on Hall element, comprise tested instrument I, tested instrument II, tested instrument n, also comprise microcontroller, reference voltage source circuit, voltage conversion chip I, voltage conversion chip II, LED display, voltage and current sensor I, voltage and current sensor II, voltage and current sensor n, microcontroller respectively with reference voltage source circuit, voltage conversion chip I, LED display, voltage-current sensor I, voltage-current sensor II, voltage-current sensor n connects, voltage conversion chip II is connected with voltage conversion chip I, tested instrument I, tested instrument II, tested instrument n corresponds to voltage and current sensor I, voltage and current sensor II, voltage and current sensor n connects.
In the process that instrument is tested, often adopt Auto-Test System.The action of Auto-Test System host computer control test platform, receives the measurement data of tested instrument, carries out resolving of test result.In test process, except needing to investigate except the output accuracy of tested instrument, also need the power consumption situation detecting tested instrument in real time, voltage, the current value of the instrument during namely detection is in real time in running order, this is with regard to the effect of " power detection system based on Hall element ".If the voltage of tested instrument, current value have exceeded desired extent, power-off immediately syndrome check will be carried out.
In tested Meter Test process, need the use electricity condition monitoring tested instrument, in order to not affect the normal operating conditions of tested instrument, at voltage, on the real-time metering system of electric current, have employed Hall element, carry out signal sampling by microcontroller, the isolation measurement carrying out non-intrusion type carries out power detecting.This power supply monitoring system is as the subsystem in Meter Test system, can realize monitoring multiple-way supply state simultaneously, carry out voltage, current status collection in real time, both the lcd screen can carried at plate carries out information displaying, according to the steering order of test macro main frame, power supply status data can be sent to test macro main frame again, in the enterprising line number of system master screen according to the show.
Hall element conventional in power measurement field comprises Hall voltage sensor and the large class of Hall current sensor two.Just in time meet the function needs of monitoring voltage and electric current simultaneously.Hall voltage sensor and current sensor have good performance, measuring process and the main current supply circuit of tested inertia type instrument completely isolated, and can realize carrying out voltage to main current supply circuit, current status in real time, accurate measuring ability.Hall element combines mutual inductor and shunt and advantage, overcomes again the weak point adopting mutual inductor and shunt simultaneously.
Because this power supply monitoring system can realize the function monitored multiple-way supply state simultaneously, comprise multiple voltage channel and multiple current sample passage, and need to carry out real-time operation and display power supply state, in system, microcontroller selects the C8051F020 of Silicon Labs company as master controller.
This supervisory system is powered a road direct current supply independent with the mutually isolated needs of the main power supply of tested instrument.For making system, there is good voltage adaptation scope, the power supply of system have employed the DC-DC module XR25/12T05-15 of Width funtion input, can accept the Width funtion input of 9 ~ 36V, have good adaptability, output can provide ± 15V voltage, ensures that Hall element normally works.In order to power to C8051F020 microcontroller, by+15V, adopting two-stage LDO, is that LM2575 voltage conversion chip I and AS1117-3.3 voltage conversion chip II provide 3.3V voltage to be supplied to C8051F020 use respectively.
AD sampling section in system, the precision of reference voltage directly affects the precision of measurement result.So the precision in order to ensure ADC, the special chip REF193 that in C8051F020 system, reference voltage source circuit have employed AD company provides the voltage reference of 3V as outside reference source, thus ensure that the measuring accuracy of system.
Claims (1)
1. the power detection system based on Hall element, comprise tested instrument I, tested instrument II, tested instrument n, also comprise microcontroller, reference voltage source circuit, voltage conversion chip I, voltage conversion chip II, LED display, voltage and current sensor I, voltage and current sensor II, voltage and current sensor n, microcontroller respectively with reference voltage source circuit, voltage conversion chip I, LED display, voltage-current sensor I, voltage-current sensor II, voltage-current sensor n connects, voltage conversion chip II is connected with voltage conversion chip I, tested instrument I, tested instrument II, tested instrument n corresponds to voltage and current sensor I, voltage and current sensor II, voltage and current sensor n connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777225.3U CN204302353U (en) | 2014-12-11 | 2014-12-11 | A kind of power detection system based on Hall element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777225.3U CN204302353U (en) | 2014-12-11 | 2014-12-11 | A kind of power detection system based on Hall element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204302353U true CN204302353U (en) | 2015-04-29 |
Family
ID=53107884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420777225.3U Expired - Fee Related CN204302353U (en) | 2014-12-11 | 2014-12-11 | A kind of power detection system based on Hall element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204302353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738174A (en) * | 2019-02-01 | 2019-05-10 | 贵州精工利鹏科技有限公司 | A kind of multifunction aircraft operating stick testboard |
| CN109765444A (en) * | 2019-01-22 | 2019-05-17 | 北京丰荣航空科技股份有限公司 | A kind of aircraft attachment electric loop integration test box and its test method |
-
2014
- 2014-12-11 CN CN201420777225.3U patent/CN204302353U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765444A (en) * | 2019-01-22 | 2019-05-17 | 北京丰荣航空科技股份有限公司 | A kind of aircraft attachment electric loop integration test box and its test method |
| CN109738174A (en) * | 2019-02-01 | 2019-05-10 | 贵州精工利鹏科技有限公司 | A kind of multifunction aircraft operating stick testboard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103018543A (en) | High-accuracy multichannel alternating voltage and current detection device | |
| CN203133146U (en) | Transformer neutral point current measuring device | |
| CN105301281A (en) | Monitoring method and device for flowing speed of transformer oil flow | |
| CN102062849A (en) | Calibrating device and method for DC electric energy meter | |
| CN204302353U (en) | A kind of power detection system based on Hall element | |
| CN203224570U (en) | Digital insulation-resistance on-line detector | |
| CN206805286U (en) | A kind of device of DCS system simulations amount signal acquisition browsing real-time data | |
| CN106154017A (en) | A kind of DC current sensor | |
| CN203117295U (en) | Resistance value detection circuit and device | |
| CN202648692U (en) | Portable integrated bridge-type sensor calibrating device | |
| CN203981144U (en) | A kind of piston travel Acquisition Instrument | |
| CN203224553U (en) | Sampling integral jaw-shaped AC active current meter | |
| CN104737638A (en) | Garden shovel capable of measuring humidity | |
| CN104090153A (en) | Detection system and detection method of liquid crystal module multi-channel power supply | |
| CN204405739U (en) | Automatic on-line resistance measuring system | |
| CN103575997A (en) | High-voltage digital insulation resistance tester | |
| CN204166120U (en) | A kind of single-phase electric energy meter on-site pick-up unit | |
| CN203759124U (en) | Portable rail seam resistance tester | |
| CN203631891U (en) | Active multifunctional adapter | |
| CN206293871U (en) | Breaker controller | |
| CN103149427A (en) | Single phase electronic watt-hour meter | |
| CN208043899U (en) | A kind of transformation of low-power consumption DC high voltage linear photoconductor and isolating device | |
| CN207366649U (en) | A kind of wireless refrigerator performance detection data harvester | |
| CN106468743A (en) | Pulse constant current diode forward pressure fall-off test instrument | |
| CN205176223U (en) | Tester takes place for readable formula direct current |
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: 20150429 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |