CN107121615A - A kind of passive Silent warning device for detection of power loss - Google Patents
A kind of passive Silent warning device for detection of power loss Download PDFInfo
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- CN107121615A CN107121615A CN201710559371.7A CN201710559371A CN107121615A CN 107121615 A CN107121615 A CN 107121615A CN 201710559371 A CN201710559371 A CN 201710559371A CN 107121615 A CN107121615 A CN 107121615A
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- microcontroller
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- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 24
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 18
- 230000001052 transient effect Effects 0.000 claims abstract description 12
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006855 networking Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005276 aerator Methods 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention relates to wireless caution device field, a kind of passive Silent warning device for detection of power loss, including first resistor R1, FET U1, large bulk capacitance C1, Schottky diode D1, second resistance R2,3rd resistor R3, the 4th resistance R4, two-way transient state voltage-stabiliser tube VD1, first filter capacitor C2, LDO voltage stabilizing chip U2, resettable fuse F1, piezo-resistance RP1, the second filter capacitor C3, transformer U3, four diodes D2, D3, D4 and the D5 and microcontroller for constituting bridge rectifier are provided（CPU）U0.Non-active operation of the present invention and circuit low power dissipation design, it is not necessary to optional equipment battery or back-up source, scene, by LoRa wireless communication transmission warning messages, are more suitable for the occasion of some particular demands without acousto-optic warning.
Description
Technical field
It is particularly a kind of for the passive noiseless of detection of power loss the present invention relates to alarming device and wireless communication technique field
Alarming device.
Background technology
In daily life and production process, electricity has become one of condition of indispensability, but also can often have a power failure
Phenomenon, or because the equipment fault of itself, cause device looses power.In certain fields, if can not find in time have a power failure or
The situation of device looses power, and take appropriate measures, adverse consequences is often caused, or even cause huge economic loss.
Such as in aquaculture field, at night, the particularly time after midnight, culturing pool must be turned on aerator agitation water body,
The dissolved oxygen of water body is allowed to be maintained in certain scope.If midnight has a power failure suddenly, and staff does not have found in time, meeting
Ingesting, grow and surviving for animal is directly or indirectly influenceed, serious consequence is likely to result in, if Dissolved Oxygen in Water is long
Between it is relatively low, or even the phenomena of mortality of the aquatic animal of group occur, extinction can be brought to plant.
Common detection of power loss warning device, when usually detecting the power down phenomenon of current supply circuit, passes through sound in time
Light alarm, the type of alarm of this use sound or warning lamp, is not appropriate for using in aquaculture field, there is feedwater lively
Thing causes the possibility of emergency reaction.Moreover, common such device is typically all configured with battery or other back-up sources, have
Certain use limitation.
In traditional technical solution, also have and warned by sending the modes such as SMS, this kind equipment needs
The wireless modules such as GSM are equipped with, power consumption is high, more needs to power by battery or back-up source.If staff does not exist
Scene, this single device power alarm, it is impossible to by long-range principium identification be unit power down or grid power blackout.
Moreover, in existing detection of power loss technical scheme, typically no synchronous progress temperature detection, it is impossible to pass through motor etc.
Temperature conditions carrys out preliminary judge whether because power down failure caused by motor temperature is too high.
The content of the invention
The present invention for above-mentioned technical problem make improvement, the i.e. technical problems to be solved by the invention be to provide one kind can
With carry out detection of power loss, need not using battery or back-up source, by being wirelessly transferred warning message and scene without acousto-optic
The low-power consumption warning device of warning, and described device includes temperature detecting function.
In order to solve the above-mentioned technical problem, a kind of technical scheme of the invention is：A kind of passive nothing for detection of power loss
Sound alarming device, including first resistor R1, FET U1, large bulk capacitance C1, Schottky diode D1, second resistance R2,
3rd resistor R3, the 4th resistance R4, two-way transient state voltage-stabiliser tube VD1, first filter capacitor C2, LDO voltage stabilizing chip U2, self- recoverage are protected
Dangerous silk F1, piezo-resistance RP1, the second filter capacitor C3, transformer U3, constitute four diode D2 of bridge rectifier, D3,
D4 and D5 and microcontroller（CPU）U0.
Further, the grid level G ends of the FET U1 are connected with one end of the second resistance R2, the field-effect
The one end of pipe U1 source class S ends respectively with the large bulk capacitance C1 and the Schottky diode D1 is connected, the field-effect
The one end and the microcontroller of pipe U1 drain D ends with the first resistor R1（CPU）U0 VCC pin connection, described the
One resistance R1 other end ground connection, the other end of the second resistance R2 respectively with the 3rd resistor R3 and the 4th resistance
R4 one end connection, the other end ground connection of the 3rd resistor R3, the other end and the Schottky two of the 4th resistance R4
The pole pipe D1 other end, one end of the two-way transient state voltage-stabiliser tube VD1, one end of the first filter capacitor C2 and the LDO
Voltage stabilizing chip U2 OUT pins connection, the other end ground connection of the two-way transient state voltage-stabiliser tube VD1, the large bulk capacitance C1's
The other end is grounded.
Further, the other end ground connection of the first filter capacitor C2, the IN pins of the LDO voltage stabilizing chips U2 and institute
State resettable fuse F1 one end connection, the other end of the resettable fuse F1 respectively with the second filter capacitor C3
One end, one end of the piezo-resistance RP1 and the diode D3 and D4 one end connection, the second filter capacitor C3's
The GND pin ground connection of the other end, the other end of the piezo-resistance RP1 and the LDO voltage stabilizing chips U2.
Further, described four diodes D2, D3, D4 and D5 constitute bridge rectifier and with the transformer U3's
Output end is connected, the input termination power input UK of the transformer U3.
Further, the warning circuit also includes a wireless communication module, the wireless communication module with it is described micro-
Controller（CPU）U0 connections, for externally transmitting information warning, the VCC power input pins of the wireless communication module and institute
State microcontroller（CPU）U0 VCC pin is connected.
Further, the preferred LoRa communication modules of the wireless communication module.
Further, the microcontroller（CPU）U0 is a kind of microcontroller of low-power consumption, preferably ARM kernels
The microcontroller of STM32L serial model No.s.
Further, the microcontroller（CPU）U0 is also associated with a temperature sensor, for temperature detection, preferred type
Number be DS18B20 numeric type 1-wire temperature sensor.
Compared with prior art, the invention has the advantages that：
（1）Non-active operation, it is not necessary to optional equipment battery or back-up source；
（2）Scene, by being wirelessly transferred warning message, is more suitable for specific occasion without acousto-optic warning；
（3）It is low in energy consumption；
（4）Device holistic cost is low, and outward appearance can design very little ingeniously, compact can install and fix；
（5）Be provided simultaneously with temperature detection, for subsidiary discriminant power down whether be motor or transformer temperature it is too high caused by；
（6）Wirelessly can networking, the linkage of multiple devices, remotely can principium identification be unit power down or grid power blackout；
（7）It is easy to use, safeguard simple, based on LoRa wireless telecommunications, communication distance is remote, without complicated installation and wiring.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the passive Silent warning device for detection of power loss of the embodiment of the present invention.
Fig. 2 is the structured flowchart of the passive Silent warning device for detection of power loss of the embodiment of the present invention.
In Fig. 1：R1 is that first resistor, U1 are that FET, C1 are that large bulk capacitance, D1 are that Schottky diode, R2 are
Second resistance, R3 are that 3rd resistor, R4 are that the 4th resistance, VD1 are that two-way transient state voltage-stabiliser tube, C2 are that the first filter capacitor, U2 are
LDO voltage stabilizing chips, F1 be resettable fuse, RP1 be piezo-resistance, C3 be the second filter capacitor, U3 be transformer, D2, D3,
D4 and D5 are that diode, the U0 of composition bridge rectifier are microcontroller（CPU）.
Embodiment
The accompanying drawing used required in embodiment or description of the prior art will be briefly described below, show and
Easy insight, described embodiment is a part of embodiment of the invention, and accompanying drawing is some embodiments of the invention, for this area
For those of ordinary skill, on the premise of not paying creative work, other forms can also be obtained according to these accompanying drawings
Accompanying drawing.
It should be noted that unless otherwise clearly defined and limited, term " connection ", " phase in this specification description
Even ", " installation " should be interpreted broadly, for example, it may be being integrally connected, being fixedly connected or being detachably connected；Can be
It is directly connected to or is indirectly connected to by intermediary by mechanical structure or electronics.
As shown in figure 1, a kind of passive Silent warning device for detection of power loss, including first resistor R1, FET
U1, large bulk capacitance C1, Schottky diode D1, second resistance R2,3rd resistor R3, the 4th resistance R4, two-way transient state voltage stabilizing
Pipe VD1, first filter capacitor C2, LDO voltage stabilizing chip U2, resettable fuse F1, piezo-resistance RP1, the second filter capacitor C3,
Transformer U3, four diodes D2, D3, D4 and the D5 and microcontroller for constituting bridge rectifier（CPU）U0,
The grid level G ends of the FET U1 are connected with one end of the second resistance R2, the source class S ends of the FET U1
One end with the large bulk capacitance C1 and the Schottky diode D1 is connected respectively, the drain D ends of the FET U1
One end and the microcontroller with the first resistor R1（CPU）U0 VCC pin connection, the first resistor R1's is another
End ground connection, the one end of the other end of the second resistance R2 respectively with the 3rd resistor R3 and the 4th resistance R4 is connected,
The other end ground connection of the 3rd resistor R3, the other end of the 4th resistance R4 is another with the Schottky diode D1's
End, one end of the two-way transient state voltage-stabiliser tube VD1, one end of the first filter capacitor C2 and the LDO voltage stabilizing chips U2
OUT pins are connected, the other end ground connection of the two-way transient state voltage-stabiliser tube VD1, the other end ground connection of the large bulk capacitance C1,
The other end ground connection of the first filter capacitor C2, IN pins and the self- recoverage of the LDO voltage stabilizing chips U2 insure
Silk F1 one end connection, it is the other end of resettable fuse F1 one end respectively with the second filter capacitor C3, described
Piezo-resistance RP1 one end and the connection of one end of the diode D3 and D4, it is the other end of the second filter capacitor C3, described
The piezo-resistance RP1 other end and the LDO voltage stabilizing chips U2 GND pin ground connection.
In the present embodiment, described four diodes D2, D3, D4 and D5 composition bridge rectifier and with the transformer
U3 output end connection, the input termination power input UK of the transformer U3.
Wherein, the L ends being connected with the power input UK are power firestreak, and N-terminal is zero-power line.
In the present embodiment, the resettable fuse F1 uses model SMD1210P005TF device, described pressure-sensitive
Resistance RP1 uses model 7D680K device, and the Schottky diode D1 uses model MBR0520 device, described
3rd resistor R3 uses 1M resistance, and the second resistance R2 uses 2K resistance, and the first resistor R1 uses 10K resistance, described
FET U1 uses P-channel insulated gate (MOSFET), model AP2301GN.
As shown in Fig. 2 in the present embodiment, the warning circuit also includes a wireless communication module, the channel radio
Interrogate module and the microcontroller（CPU）U0 connections, for externally transmitting information warning, the VCC electricity of the wireless communication module
Source input pin and the microcontroller（CPU）U0 VCC pin is connected.
In the present embodiment, the wireless communication module uses LoRa communication modules.
As one of enforceable mode, the wireless communication module, which can be used, possesses the wireless of NB-IoT communications regimes
Communication module group is replaced, and carries out the transmission of long-range information warning.
In the present embodiment, the microcontroller（CPU）U0 is a kind of microcontroller of low-power consumption, using ARM kernels
The microcontroller of STM32L serial model No.s.
In the present embodiment, the microcontroller（CPU）U0 is also associated with a temperature sensor, for temperature detection, adopts
With model DS18B20 numeric type 1-wire temperature sensor.
With reference to Fig. 1 and Fig. 2, working mechanism of the invention is as follows：There is not the situation of power down in power input UK, it is defeated
The power supply entered passes through the conversion of the transformer U3, the bridge-type electricity that output low-voltage is constituted through described diode D2, D3, D4 and D5
Road rectification, and after the filtering of the second filter capacitor C3, the low-voltage of output enters after the resettable fuse F1
The power input of the LDO voltage stabilizing chips U2, the LDO voltage stabilizing chips U2 power output ends export 3.3V DC voltage
V1, the DC voltage V1 pass through the DC voltage after Schottky diode D1 after the filtering of the first filter capacitor C2
Charged for V2, the DC voltage V2 for the large bulk capacitance C1, because the grid level G ends of the FET U1 are by described straight
Stream voltage V1 is drawn high, and the FET U1 is in cut-off state, and the drain D ends of the FET U1 do not have voltage output,
The microcontroller（CPU）U0 does not have power supply supply, in without working condition.
When there is power down in the power input UK, the DC voltage V1 also power down, then the large bulk capacitance C1 is not
Charging either charge balance state again is at, into discharge condition, because the reverse cut-off of the Schottky diode D1 is made
With the voltage V2 of the large bulk capacitance C1 outputs will not be output to the voltage V1, and the grid level G of the FET U1 is brought out
Existing voltage change from high to low, the FET U1 formation communication channel, the voltage V2 is from the FET U1's
Source class S ends are conducting to the drain D ends of the FET U1, and are the microcontroller（CPU）U0 VCC pin provides power supply
Supply, the microcontroller（CPU）U0 starts working, and it is related outwards to transmit power down warning by the wireless communication module in time
Information.
In the present embodiment, the temperature sensor is close to be fixed on aerator motor shell, the microcontroller
Device（CPU）U0 start working when, while start-up temperature detect, further transmit temperature information, for subsidiary discriminant power down whether
Be motor temperature it is too high caused by.
In the present embodiment, the wireless communication module uses LoRa communication modules, and multiple devices can be linked with networking, ties
Close LoRa gateways or special mobile phone A PP application, staff do not have at the scene can also remotely principium identification be unit power down or
Grid power blackout.
In the present embodiment, the resettable fuse F1, the two-way transient state voltage-stabiliser tube VD1 and the piezo-resistance
RP1 is used for the protective effect of circuit, it is necessary to which special instruction, the input and output end of the transformer U3 can also increase
Corresponding protection device, should belong to the other embodiment of the present invention.
In the present embodiment, the microprocessor and LoRa communication modules of the invention by using low-power consumption, with reference to bulky capacitor
Use, it is not necessary to optional equipment battery or back-up source can just start the power alarm work of short time, and live nothing
Acousto-optic warning, by being wirelessly transferred warning message, is more suitable for specific occasion；Device holistic cost is low, and outward appearance can design very little
Ingeniously, it compact can install and fix；Be provided simultaneously with temperature detection, for subsidiary discriminant power down whether be motor or transformer temperature mistake
Caused by high, also can wirelessly can networking, multiple devices linkages, remotely can principium identification be unit power down or grid power blackout；
It is easy to use, safeguard simple, based on LoRa wireless telecommunications, communication distance is remote, without complicated installation and wiring.
Present pre-ferred embodiments are the foregoing is only, anyone can draw other various shapes under present invention enlightenment
The passive Silent warning device of the detection of power loss of formula, all equivalent changes and modifications done according to scope of the present invention patent, all
Covering scope of the present invention should be belonged to.
Claims (4)
1. a kind of passive Silent warning device for detection of power loss, it is characterised in that including first resistor R1, FET
U1, large bulk capacitance C1, Schottky diode D1, second resistance R2,3rd resistor R3, the 4th resistance R4, two-way transient state voltage stabilizing
Pipe VD1, first filter capacitor C2, LDO voltage stabilizing chip U2, resettable fuse F1, piezo-resistance RP1, the second filter capacitor C3,
Transformer U3, four diodes D2, D3, D4 and the D5 and microcontroller for constituting bridge rectifier（CPU）U0；
The grid level G ends of the FET U1 are connected with one end of the second resistance R2, the source class S ends of the FET U1
One end with the large bulk capacitance C1 and the Schottky diode D1 is connected respectively, the drain D ends of the FET U1
One end and the microcontroller with the first resistor R1（CPU）U0 VCC pin connection, the first resistor R1's is another
End ground connection, the one end of the other end of the second resistance R2 respectively with the 3rd resistor R3 and the 4th resistance R4 is connected,
The other end ground connection of the 3rd resistor R3, the other end of the 4th resistance R4 is another with the Schottky diode D1's
End, one end of the two-way transient state voltage-stabiliser tube VD1, one end of the first filter capacitor C2 and the LDO voltage stabilizing chips U2
OUT pins are connected, the other end ground connection of the two-way transient state voltage-stabiliser tube VD1, the other end ground connection of the large bulk capacitance C1；
The other end ground connection of the first filter capacitor C2, IN pins and the self- recoverage of the LDO voltage stabilizing chips U2 insure
Silk F1 one end connection, it is the other end of resettable fuse F1 one end respectively with the second filter capacitor C3, described
Piezo-resistance RP1 one end and the connection of one end of the diode D3 and D4, it is the other end of the second filter capacitor C3, described
The piezo-resistance RP1 other end and the LDO voltage stabilizing chips U2 GND pin ground connection；
Four diodes D2, D3, D4 and D5 composition bridge rectifier is simultaneously connected, institute with the output end of the transformer U3
State transformer U3 input termination power input UK.
2. a kind of passive Silent warning device for detection of power loss according to claim 1, it is characterised in that the police
Show that circuit also includes a wireless communication module, the wireless communication module and the microcontroller（CPU）U0 connections, for pair
Outer transmission information warning, VCC power input pins and the microcontroller of the wireless communication module（CPU）U0 VCC draws
Pin is connected.
3. a kind of passive Silent warning device for detection of power loss according to claim 1, it is characterised in that described micro-
Controller（CPU）U0 is a kind of microcontroller of low-power consumption.
4. a kind of passive Silent warning device for detection of power loss according to claim 1, it is characterised in that described micro-
Controller（CPU）U0 is also associated with a temperature sensor, for temperature detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710559371.7A CN107121615A (en) | 2017-07-11 | 2017-07-11 | A kind of passive Silent warning device for detection of power loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710559371.7A CN107121615A (en) | 2017-07-11 | 2017-07-11 | A kind of passive Silent warning device for detection of power loss |
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| Publication Number | Publication Date |
|---|---|
| CN107121615A true CN107121615A (en) | 2017-09-01 |
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ID=59730778
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710559371.7A Pending CN107121615A (en) | 2017-07-11 | 2017-07-11 | A kind of passive Silent warning device for detection of power loss |
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| CN (1) | CN107121615A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107703405A (en) * | 2017-09-26 | 2018-02-16 | 九阳股份有限公司 | A kind of water purifier power failure detection method |
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| CN206096314U (en) * | 2016-10-26 | 2017-04-12 | 武汉盛帆电子股份有限公司 | Power failure detection system and electric meter system |
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| CN103235230A (en) * | 2013-04-16 | 2013-08-07 | 卫斌鹏 | Automatic passive power failure warning device |
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Application publication date: 20170901 |