CN205720501U - A kind of power failure detecting system based on indicator light switch - Google Patents
A kind of power failure detecting system based on indicator light switch Download PDFInfo
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- CN205720501U CN205720501U CN201620277509.5U CN201620277509U CN205720501U CN 205720501 U CN205720501 U CN 205720501U CN 201620277509 U CN201620277509 U CN 201620277509U CN 205720501 U CN205720501 U CN 205720501U
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Abstract
The utility model discloses a kind of power failure detecting system based on indicator light switch, when microcontroller allows switch S2 Guan Bi, resistance R3 and resistance R4 is in parallel, resistance value is less, voltage forms loop through resistance R1, resistance R2, resistance R3 and resistance R4, and between now microcontroller detection resistance R2 and resistance R3, junction point is low level relative to the voltage of reference point.This utility model provides one design simple, power failure based on indicator light switch detection implementation method rational in infrastructure, with low cost, the method may be used for a lot needing detecting in the electronic equipment of mains failure, such as the motor device of processing, after having a power failure suddenly, needs cut off, automatically work together when preventing from sending a telegram here again, it is also possible to be applied to emergency lighting, automatically open up emergency light when having a power failure, in case suddenly from bright to going out, the normal work of impact and activity.
Description
Technical field
This utility model relates to a kind of detecting system, a kind of power failure detecting system based on indicator light switch.
Background technology
In the electronic device, a lot of occasions need the power failure to civil power or incoming call to make detection, and take the counter-measure being correlated with, and to avoid accident, or make troubles.And much the most higher as the equipment cost of the specialty such as UPS, power system monitor, it is difficult to universal.The most also being greatly improved because of the safety of lithium battery, it is widely used to each field.The detection application that has a power failure using the continuous electricity of lithium battery also becomes the direction of development.This utility model provides one design simple, power failure based on indicator light switch detection implementation method rational in infrastructure, with low cost.
Utility model content
The purpose of this utility model is to provide a kind of power failure detecting system based on indicator light switch, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of power failure detecting system based on indicator light switch, when microcontroller allows switch S2 Guan Bi, resistance R3 and resistance R4 is in parallel, resistance value is less, voltage forms loop through resistance R1, resistance R2, resistance R3 and resistance R4, and between now microcontroller detection resistance R2 and resistance R3, junction point is low level relative to the voltage of reference point；And when microprocessor controls switch S2 disconnects, voltage is through resistance R1, resistance R2, resistance R3 forms loop, owing to sample resistance R3 becomes big, now between detection resistance R2 and resistance R3, junction point is high level relative to the voltage of parameter point, now can determine whether as civil power normal, switch S1 is off-state, when no matter switch S2 be close also be off time, when voltage between microcontroller detection resistance R2 and resistance R3 is all high level, it is judged as that civil power is normal, switch S1 is closure state, when no matter switch S2 be close also be off time, when voltage between microcontroller detection resistance R2 and resistance R3 is all low level, it is judged as mains failure.
As this utility model further scheme: described resistance R1 is in parallel with switch S1 again after connecting with LED.
Compared with prior art, the beneficial effects of the utility model are: this utility model provides one design simple, power failure based on indicator light switch detection implementation method rational in infrastructure, with low cost, the method may be used in the electronic equipment a lot needing to detect mains failure, motor device such as processing, after having a power failure suddenly, needs cut off, automatically work together when preventing from sending a telegram here again, emergency lighting can also be applied to, emergency light is automatically opened up, in case suddenly from bright to going out, impact is normal to work and movable when having a power failure.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of power failure detecting system based on indicator light switch.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1, in this utility model embodiment, a kind of power failure detecting system based on indicator light switch, when microcontroller allows switch S2 Guan Bi, resistance R3 and resistance R4 is in parallel, resistance value is less, and voltage forms loop through resistance R1, resistance R2, resistance R3 and resistance R4, and between now microcontroller detection resistance R2 and resistance R3, junction point is low level relative to the voltage of reference point；And when microprocessor controls switch S2 disconnects, voltage is through resistance R1, resistance R2, resistance R3 forms loop, owing to sample resistance R3 becomes big, now between detection resistance R2 and resistance R3, junction point is high level relative to the voltage of parameter point, now can determine whether as civil power normal, switch S1 is off-state, when no matter switch S2 be close also be off time, when voltage between microcontroller detection resistance R2 and resistance R3 is all high level, it is judged as that civil power is normal, switch S1 is closure state, when no matter switch S2 be close also be off time, when voltage between microcontroller detection resistance R2 and resistance R3 is all low level, it is judged as mains failure；Described resistance R1 is in parallel with switch S1 again after connecting with LED.
Operation principle of the present utility model is: refer to Fig. 1, when microcontroller allows switch S2 Guan Bi, resistance R3 and resistance R4 is in parallel, resistance value is less, voltage forms loop through resistance R1, resistance R2, resistance R3 and resistance R4, and between now microcontroller detection resistance R2 and resistance R3, junction point is low level relative to the voltage of reference point；And when microprocessor controls switch S2 disconnects, voltage is through resistance R1, resistance R2, resistance R3 forms loop, owing to sample resistance R3 becomes big, now between detection resistance R2 and resistance R3, junction point is high level relative to the voltage of parameter point, now can determine whether as civil power normal, switch S1 is off-state, when no matter switch S2 be close also be off time, when voltage between microcontroller detection resistance R2 and resistance R3 is all high level, it is judged as that civil power is normal, switch S1 is closure state, when no matter switch S2 be close also be off time, when voltage between microcontroller detection resistance R2 and resistance R3 is all low level, it is judged as mains failure.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in this utility model.Should not be considered as limiting involved claim by any reference in claim.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (2)
1. a power failure detecting system based on indicator light switch, it is characterized in that, when microprocessor controls switch S2 Guan Bi, resistance R3 and resistance R4 is in parallel, resistance value is less, voltage forms loop through resistance R1, resistance R2, resistance R3 and resistance R4, and between now microcontroller detection resistance R2 and resistance R3, junction point is low level relative to the voltage of reference point；And when microprocessor controls switch S2 disconnects, voltage forms loop through resistance R1, resistance R2, resistance R3, now microcontroller is judged as that civil power is normal, switch S1 is off-state, when no matter switch S2 be close also be off time, when voltage between microcontroller detection resistance R2 and resistance R3 is all high level, microcontroller is judged as that civil power is normal, switch S1 is closure state, when no matter switch S2 be close also be off time, when voltage between microcontroller detection resistance R2 and resistance R3 is all low level, it is judged that for mains failure.
Power failure detecting system based on indicator light switch the most according to claim 1, it is characterised in that described resistance R1 is in parallel with switch S1 again after connecting with LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620277509.5U CN205720501U (en) | 2016-04-06 | 2016-04-06 | A kind of power failure detecting system based on indicator light switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620277509.5U CN205720501U (en) | 2016-04-06 | 2016-04-06 | A kind of power failure detecting system based on indicator light switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205720501U true CN205720501U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620277509.5U Active CN205720501U (en) | 2016-04-06 | 2016-04-06 | A kind of power failure detecting system based on indicator light switch |
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| Country | Link |
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| CN (1) | CN205720501U (en) |
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2016
- 2016-04-06 CN CN201620277509.5U patent/CN205720501U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210701 Address after: 201203 Building 2, 439 Chunxiao Road, Pudong New Area pilot Free Trade Zone, Shanghai Patentee after: SHANGHAI SINOMCU MICROELECTRONICS Co.,Ltd. Address before: Room 345, block B, building 1, 977 Shangfeng Road, Pudong New Area, Shanghai, 200120 Patentee before: SHANGHAI SINO-SAGE INTELLIGENT TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |