CN203299266U - Micro programming load recognizer - Google Patents
Micro programming load recognizer Download PDFInfo
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- CN203299266U CN203299266U CN2013203789886U CN201320378988U CN203299266U CN 203299266 U CN203299266 U CN 203299266U CN 2013203789886 U CN2013203789886 U CN 2013203789886U CN 201320378988 U CN201320378988 U CN 201320378988U CN 203299266 U CN203299266 U CN 203299266U
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- load
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- sampling resistor
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Abstract
The utility model relates to a micro programming load recognizer. The micro programming load recognizer comprises a sampling resistor which is used for acquiring a current flowed through a load and a corresponding voltage, a load metering unit which is connected with the sampling resistor and used for recognizing load power and a power factor, a memory unit which has a database stored power ranges and power factors of various types of loads, and an MCU unit which is connected with the memory unit and used for obtaining a load type corresponding to the database according to the detected load power and power factor. By adopting cooperation of a sampling resistor manganese copper sheet and the load metering unit, the micro programming load recognizer can accurately acquire the load power and the power factor; and an electrical appliance type can be determined timely and a power supply circuit can be switched off timely, so as to protect the circuit.
Description
Technical field
The utility model belongs to the load recognition technology, the little processing type of specific design kind load recognizer.
Background technology
The conventional load recognizer is realized by pure mimic channel, can only identify the load of fixed type, can not adjust arbitrarily, particularly in the electricity consumption such as family, unit place, may occur that high-power electric appliance uses, how that identifies load, and can be in time, effectively control bus cuts off the power supply to limit that high-power electric appliance uses is an art technology difficult problem.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of little processing type load recognizer, and this load recognizer can detect the power of load fast and accurately, and the judgement load characteristic.
In order to address the above problem, the utility model provides a kind of little processing type load recognizer, comprise: be used for obtaining to flow through the electric current of load and the sampling resistor of relevant voltage, the load metering units that is used for identification bearing power and power factor (PF) that is connected with this sampling resistor, store the storage unit of the database of the power bracket of all types of loads and power factor (PF), what with this storage unit, be connected is used for the MCU unit that bearing power and power factor (PF) according to described detection obtain loadtype corresponding to described database.
Further, in order to prevent user or unit access high power electrical equipment, described MCU unit is connected with a relay unit for the protection of supply line's overload.
In order accurately to obtain sampled voltage and electric current, described sampling resistor adopts the copper-manganese sheet.
The utility model has positive effect with respect to prior art:
(1) the utility model coordinates by sampling resistor copper-manganese sheet and load metering units, with Obtaining Accurate bearing power and power factor (PF); (2) the utility model can in time be judged the electrical equipment type and can in time disconnect supply line, plays the effect of protection circuit.
Description of drawings
In order to clearly demonstrate innovative principle of the present utility model and than the technical advantage of existing product, below by means of accompanying drawing possible embodiment of limiting examples explanation by the described principle of application.In the drawings:
Fig. 1 is the structured flowchart of little processing type load recognizer of the present utility model;
Fig. 2 is relay unit of the present utility model.
Embodiment
see Fig. 1, a kind of little processing type load recognizer, comprise: be used for obtaining to flow through the electric current of load and the sampling resistor of relevant voltage, the load metering units that is used for identification bearing power and power factor (PF) that is connected with this sampling resistor, the MCU unit that is used for monitoring bearing power and power factor (PF) that is connected with this metering units, the storage unit that is connected with this MCU unit, this cell stores has the database of power bracket and the power factor (PF) of all types of loads, this MCU unit is used for obtaining loadtype corresponding to described database according to the bearing power of described detection and power factor (PF).
Described MCU unit is suitable for setting the upper limit of bearing power, while with the bearing power when described detection, reaching described Upper Bound Power, controls a relay unit and disconnects supply line.
Described sampling resistor adopts the copper-manganese sheet.
In the embodiment of described load metering units, load metering units chips adopts computation chip CS5463, described sampling resistor gathers voltage and current by two input ends in this computation chip, and if in connection and ammeter, the earth terminal of sampling resistor and the live wire in ammeter.
In the embodiment of MCU unit, the MCU chip adopts PIC16F1947.
Fig. 2 is relay unit, and the auxiliary contact 1,2 of figure repeat circuit P7 are respectively by Q2, Q8 and Q3, the Q6 MCU chip controls that was connected, and the figure of supply line access is at the main contacts of relay.
Obviously, above-described embodiment is only for the utility model example clearly is described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And these belong to apparent variation or the change that spirit of the present utility model extended out and still are among protection domain of the present utility model.
Claims (3)
1. little processing type load recognizer, it is characterized in that comprising: be used for obtaining to flow through the electric current of load and the sampling resistor of relevant voltage, the load metering units that is used for identification bearing power and power factor (PF) that is connected with this sampling resistor, store the storage unit of the database of the power bracket of all types of loads and power factor (PF), what with this storage unit, be connected is used for the MCU unit that bearing power and power factor (PF) according to described detection obtain the corresponding loadtype of described database.
2. little processing type load recognizer according to claim 1, is characterized in that, described MCU unit is connected with a relay unit for the protection of supply line's overload.
3. little processing type load recognizer according to claim 2, is characterized in that, described sampling resistor adopts the copper-manganese sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203789886U CN203299266U (en) | 2013-06-27 | 2013-06-27 | Micro programming load recognizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203789886U CN203299266U (en) | 2013-06-27 | 2013-06-27 | Micro programming load recognizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203299266U true CN203299266U (en) | 2013-11-20 |
Family
ID=49575271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203789886U Expired - Lifetime CN203299266U (en) | 2013-06-27 | 2013-06-27 | Micro programming load recognizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN203299266U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675543A (en) * | 2013-12-05 | 2014-03-26 | 国家电网公司 | Monitoring system of circuit loading |
| WO2016070484A1 (en) * | 2014-11-05 | 2016-05-12 | 深圳市华星光电技术有限公司 | Feedback separated circuit, and motherboard and daughterboard combination detection method therefor |
| CN106872824A (en) * | 2017-02-15 | 2017-06-20 | 宁波华创锐科智能科技有限公司 | A kind of network load appliance type identification and the method and its device of different electrical equipment electricity statistics |
| CN107422218A (en) * | 2017-09-26 | 2017-12-01 | 深圳市北电仪表有限公司 | Bad load recognizer and recognition methods |
-
2013
- 2013-06-27 CN CN2013203789886U patent/CN203299266U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675543A (en) * | 2013-12-05 | 2014-03-26 | 国家电网公司 | Monitoring system of circuit loading |
| WO2016070484A1 (en) * | 2014-11-05 | 2016-05-12 | 深圳市华星光电技术有限公司 | Feedback separated circuit, and motherboard and daughterboard combination detection method therefor |
| CN106872824A (en) * | 2017-02-15 | 2017-06-20 | 宁波华创锐科智能科技有限公司 | A kind of network load appliance type identification and the method and its device of different electrical equipment electricity statistics |
| CN107422218A (en) * | 2017-09-26 | 2017-12-01 | 深圳市北电仪表有限公司 | Bad load recognizer and recognition methods |
| CN107422218B (en) * | 2017-09-26 | 2019-11-29 | 深圳市北电仪表有限公司 | Bad load recognizer and recognition methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Bo Inventor after: Li Jinghua Inventor before: Chen Bo |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN BO TO: CHEN BO LI JINGHUA |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |