CN109917216A - Household electrical appliance fault monitoring device - Google Patents
Household electrical appliance fault monitoring device Download PDFInfo
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- CN109917216A CN109917216A CN201910306603.7A CN201910306603A CN109917216A CN 109917216 A CN109917216 A CN 109917216A CN 201910306603 A CN201910306603 A CN 201910306603A CN 109917216 A CN109917216 A CN 109917216A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 32
- 239000003990 capacitor Substances 0.000 claims abstract description 83
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 230000008054 signal transmission Effects 0.000 claims abstract description 11
- 230000032258 transport Effects 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 239000003381 stabilizer Substances 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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Abstract
The invention discloses household electrical appliance fault monitoring devices, including frequency collection circuit, separation calibration circuit and signal output apparatus, the signal frequency of signal transmission passage input terminal in the frequency collection circuit acquisition household electrical appliance fault monitoring device controlling terminal, the separation calibration circuit uses variable resistance RW1, variable resistance RW2 and capacitor C4, signal is divided into the two paths of signals of same frequency various amplitude by capacitor C3 composition split circuit, triode Q1 is used all the way, triode Q2, which forms push-pull circuit, reduces the conduction loss of signal, two road transports variable resistance RW3 and diode D4, diode D5 forms rectification circuit to signal rectification, last signal output apparatus uses triode Q5, triode Q6 and resistance R14, resistance R15 composition compound circuit prevents distorted signals, it can be by signal Frequency conversion is the trigger signal of alarm module in household electrical appliance fault monitoring device controlling terminal.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to household electrical appliance fault monitoring device.
Background technique
Currently, with the continuous development of science and technology, household electrical appliance are more and more, our life is significantly improved, gives people
Life bring great convenience, the especially nowadays arrival of information age mentions the living standard of people further
Height, however, only drawback is that the big problem of the certain head of household electrical appliance malfunction monitoring, since present household electrical appliance are various,
Do not ensure that each household electrical appliance can real-time working, therefore when individual household electrical appliance need work, it has been found that occur therefore
Barrier, seriously affects the using effect of household electrical appliance, needs to household electrical appliance real-time monitoring working condition, and can trigger household in time
Alarm module work alarm in apparatus failure monitoring device.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide household electrical appliance failure prisons
Measurement equipment, can in real-time detection household electrical appliance fault monitoring device controlling terminal signal transmission passage signal(l)ing condition, simultaneously
Signal frequency is converted to the trigger signal of alarm module in household electrical appliance fault monitoring device controlling terminal.
Its technical solution solved is: household electrical appliance fault monitoring device, including frequency collection circuit, separation calibration circuit
And signal output apparatus, the frequency collection circuit acquire signal transmission passage in household electrical appliance fault monitoring device controlling terminal
The signal frequency of input terminal, the signal transmission passage are that controlling terminal receives analog signal in household electrical appliance fault monitoring device
Channel, the separation calibration circuit will with variable resistance RW1, variable resistance RW2 and capacitor C4, capacitor C3 composition split circuit
Signal is divided into the two paths of signals of same frequency various amplitude, reduces letter with triode Q1, triode Q2 composition push-pull circuit all the way
Number conduction loss, and with capacitor C8- capacitor C10 and resistance R11- resistance R13 composition frequency selection circuit filter out single frequency
After the signal of rate in input signal output circuit, two road transports variable resistance RW3 and diode D4, diode D5 form rectified current
Road forms constant-current source circuit to defeated after signal pressure stabilizing to signal rectification, while with triode Q3, triode Q4 and voltage-stabiliser tube D3
Enter in signal output apparatus, last signal output apparatus is multiple with triode Q5, triode Q6 and resistance R14, resistance R15 composition
Closing circuit prevents distorted signals, is sent in household electrical appliance fault monitoring device in alarm module through signal projector E1；
The separation calibration circuit includes variable resistance RW1, one end of the 2 connecting resistance R4 of contact of variable resistance RW1, resistance
One end of another terminating resistor R3 of R4, one end of the 1 connecting resistance R5 of contact of variable resistance RW1, the contact 3 of variable resistance RW1
One end of the anode of diode D4, the cathode of diode D5 and capacitor C5, capacitor C6 is connect, the cathode of diode D4 connects capacitor C5's
The contact 2 of the other end and variable resistance RW3, the contact 1 of variable resistance RW3 meet the positive and capacitor C6 another of diode D5
End, 3 connecting resistance R6 of contact, one end of resistance R8 and one end of capacitor C7 of variable resistance RW3, two pole of another termination of resistance R6
The anode of pipe D6, the emitter of another termination triode Q3 of resistance R8, the base stage of triode Q3 connect diode D6 cathode and
The other end of the collector of triode Q4, the base stage of the collector connecting transistor Q4 of triode Q3 and capacitor C7, voltage-stabiliser tube D3
Cathode, emitter connecting resistance R10, one end of resistance R13 and one end of capacitor C9 of triode Q4, another termination of resistance R10
The anode of voltage-stabiliser tube D3, the contact 2 of another termination variable resistance RW2 of resistance R3 and one end of capacitor C4, variable resistance RW2's
Contact 1 connects one end of the other end of capacitor C4 and the other end of resistance R5, capacitor C3, and the contact 3 of variable resistance RW2 connects triode
The base stage of Q1, triode Q2, the collector of triode Q1 meet power supply+5V, and the emitter of triode Q1 connects the transmitting of triode Q2
The anode of the cathode of pole and diode D7, diode D8, the collector of triode Q1 connect power supply+5V, the collector of triode Q2
One end of variable resistance R7, the other end ground connection of variable resistance R7 are connect, the anode of diode D7 connects the cathode and electricity of diode D8
One end of R12, capacitor C8 are hindered, one end of the other end of another terminating resistor R13 of resistance R12, capacitor C10, capacitor C8's is another
The other end of one termination capacitor C9 and one end of resistance R11, the other end ground connection of resistance R11, capacitor C10.
By above technical scheme, the invention has the benefit that
1. signal is divided into together with variable resistance RW1, variable resistance RW2 and capacitor C4, capacitor C3 composition split circuit
The two paths of signals of frequency various amplitude, the access internal resistance value ratio using variable resistance RW1, variable resistance RW2 reach separation signal
Effect, while resistance value ratio that is to say two paths of signals amplitude ratio, and capacitor C3, capacitor C4 are shunt capacitance, filter out high frequency letter
Number noise, by that Signal separator respectively to signal calibration, can be reduced individually all the way to the error of signal calibration, finally in order to
Guarantee the consistency of signal, two paths of signals is together in input signal output circuit；
2. reducing the conduction loss of signal with triode Q1, triode Q2 composition push-pull circuit, the switch of signal is improved
Speed, and the signal that frequency selection circuit filters out single-frequency is formed with capacitor C8- capacitor C10 and resistance R11- resistance R13
Afterwards in input signal output circuit, the signal of single-frequency is relatively stable, two road transports variable resistance RW3 and diode D4, two
Pole pipe D5 forms rectification circuit and guarantees the stabilization of signal waveform to signal rectification, while with triode Q3, triode Q4 and surely
Pressure pipe D3 forms constant-current source circuit in input signal output circuit after signal pressure stabilizing, stablizes triode Q3 collection using voltage-stabiliser tube D3
Electrode potential realizes the effect for stablizing triode Q4 emitter signal, that is to say the effect for realizing constant current；
3. the signal frequency collector J1 of model SJ-ADC is selected to acquire household electrical appliance fault monitoring device controlling terminal
The signal frequency of middle signal transmission passage input terminal, even if household electrical appliance do not have to, is also at standby shape when household electrical appliance failure
State, signal frequency is abnormal at this time, and signal frequency collector J1 exports high level signal, can trigger household electrical appliance malfunction monitoring and set
Standby middle alarm module works, conversely, alarm module does not work in household electrical appliance fault monitoring device, has very high practical valence
Value.
Detailed description of the invention
Fig. 1 is system module figure of the invention.
Fig. 2 is circuit diagram of the invention.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through attached drawing 2
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is with specification
Attached drawing is reference.
Each exemplary embodiment of the invention is described below with reference to accompanying drawings.
Embodiment one, household electrical appliance fault monitoring device, including frequency collection circuit, separation calibration circuit and signal output
Circuit, the frequency collection circuit acquire the letter of signal transmission passage input terminal in household electrical appliance fault monitoring device controlling terminal
Number frequency, which is the channel that controlling terminal receives analog signal in household electrical appliance fault monitoring device, described
Signal is divided by separation calibration circuit with variable resistance RW1, variable resistance RW2 and capacitor C4, capacitor C3 composition split circuit
The two paths of signals of same frequency various amplitude reduces the conducting of signal with triode Q1, triode Q2 composition push-pull circuit all the way
Loss, and the signal that frequency selection circuit filters out single-frequency is formed with capacitor C8- capacitor C10 and resistance R11- resistance R13
Afterwards in input signal output circuit, two road transports variable resistance RW3 and diode D4, diode D5 form rectification circuit to signal
Rectification, at the same it is defeated to input signal after signal pressure stabilizing with triode Q3, triode Q4 and voltage-stabiliser tube D3 composition constant-current source circuit
Out in circuit, last signal output apparatus is anti-with triode Q5, triode Q6 and resistance R14, resistance R15 composition compound circuit
Stop signal distortion, is sent in household electrical appliance fault monitoring device in alarm module through signal projector E1；
The separation calibration circuit is with variable resistance RW1, variable resistance RW2 and capacitor C4, capacitor C3 composition separation electricity
Signal is divided into the two paths of signals of same frequency various amplitude by road, utilizes the access internal resistance value of variable resistance RW1, variable resistance RW2
Than having the function that separate signal, while resistance value ratio that is to say two paths of signals amplitude ratio, and capacitor C3, capacitor C4 are bypass electricity
Hold, filter out high-frequency signal noise, reduces the conduction loss of signal with triode Q1, triode Q2 composition push-pull circuit all the way,
The switching speed of signal is improved, and is filtered out with capacitor C8- capacitor C10 and resistance R11- resistance R13 composition frequency selection circuit
After the signal of single-frequency in input signal output circuit, the signal of single-frequency is relatively stable, two road transports variable resistance RW3
The stabilization of signal waveform is guaranteed to signal rectification with diode D4, diode D5 composition rectification circuit, while using triode
Q3, triode Q4 and voltage-stabiliser tube D3 composition constant-current source circuit utilize voltage-stabiliser tube in input signal output circuit after signal pressure stabilizing
D3 stablizes triode Q3 collector potential, realizes the effect for stablizing triode Q4 emitter signal, that is to say realizes constant current
Effect, by that respectively to signal calibration, can reduce Signal separator individually all the way to the error of signal calibration, finally in order to protect
The consistency of signal is demonstrate,proved, two paths of signals is together in input signal output circuit；
Circuit specific structure is calibrated in the separation, and one end of the 2 connecting resistance R4 of contact of variable resistance RW1, resistance R4's is another
One end of one terminating resistor R3, one end of the 1 connecting resistance R5 of contact of variable resistance RW1, the contact 3 of variable resistance RW1 connects two poles
One end of the anode of pipe D4, the cathode of diode D5 and capacitor C5, capacitor C6, the cathode of diode D4 connect the other end of capacitor C5
With the contact 2 of variable resistance RW3, the contact 1 of variable resistance RW3 connects the anode of diode D5 and the other end of capacitor C6, can be changed
3 connecting resistance R6 of contact, one end of resistance R8 and one end of capacitor C7 of resistance RW3, another terminating diode D6's of resistance R6
Anode, the emitter of another termination triode Q3 of resistance R8, the base stage of triode Q3 connect the cathode and triode of diode D6
The cathode of the other end of the collector of Q4, the base stage of the collector connecting transistor Q4 of triode Q3 and capacitor C7, voltage-stabiliser tube D3, three
Emitter connecting resistance R10, one end of resistance R13 and one end of capacitor C9 of pole pipe Q4, another termination voltage-stabiliser tube D3 of resistance R10
Anode, the contact 2 of another termination variable resistance RW2 of resistance R3 and one end of capacitor C4, the contact 1 of variable resistance RW2 connects
One end of the other end of the other end of capacitor C4 and resistance R5, capacitor C3, the contact 3 of variable resistance RW2 meets triode Q1, three poles
The base stage of pipe Q2, the collector of triode Q1 meet power supply+5V, and the emitter of triode Q1 connects emitter and two poles of triode Q2
The anode of the cathode of pipe D7, diode D8, the collector of triode Q1 meet power supply+5V, and the collector of triode Q2 connects can power transformation
One end of R7, the other end ground connection of variable resistance R7 are hindered, the anode of diode D7 connects the cathode and resistance R12, electricity of diode D8
Hold one end of C8, one end of the other end of another terminating resistor R13 of resistance R12, capacitor C10, another termination electricity of capacitor C8
Hold the other end of C9 and one end of resistance R11, the other end ground connection of resistance R11, capacitor C10.
Embodiment two, on the basis of example 1, the signal output apparatus use triode Q5, triode Q6 and electricity
Resistance R14, resistance R15 composition compound circuit prevent distorted signals, are further ensured that the reliability of the transmission of signal, emit through signal
Device E1 is sent in household electrical appliance fault monitoring device in alarm module, the base stage connecting resistance R14 of triode Q5, resistance R15
The emitter of one end and triode Q4, one end of the collector connecting resistance R16 of triode Q5, resistance R14, resistance R16 it is another
Termination power+5V, the emitter of triode Q5 connect the emitter of triode Q6 and one end of resistance R17, the base stage of triode Q6
The other end of connecting resistance R15, the collector of triode Q6 connect one end of variable resistance R18, another termination of variable resistance R18
Ground, another termination signal projector E1 of resistance R17.
Embodiment three, on the basis of example 2, the frequency collection circuit 1 select the signal frequency of model SJ-ADC
Rate collector J1 acquires the signal frequency of signal transmission passage input terminal in household electrical appliance fault monitoring device controlling terminal, main
When electrical appliance failure, even if household electrical appliance do not have to, it is also at standby mode, signal frequency is abnormal at this time, signal frequency collector
J1 exports high level signal, can trigger alarm module in household electrical appliance fault monitoring device and work, conversely, household electrical appliance failure
Alarm module does not work in monitoring device, one end of the power supply termination capacitor C1 of signal frequency collector J1 and power supply+5V, signal
The ground terminal of frequency collection device J1 is grounded, and the one of the other end of the output termination capacitor C1 of signal frequency collector J1 and resistance R1
End, voltage-stabiliser tube D1 cathode, the plus earth of voltage-stabiliser tube D1, one end of another termination capacitor C2 of resistance R1 and diode D2's
Anode, the other end ground connection of capacitor C2, the other end of the cathode connecting resistance R4 of diode D2.
The present invention is when specifically used, household electrical appliance fault monitoring device, including frequency collection circuit, separation calibration circuit
And signal output apparatus, the frequency collection circuit acquire signal transmission passage in household electrical appliance fault monitoring device controlling terminal
The signal frequency of input terminal, the signal transmission passage are that controlling terminal receives analog signal in household electrical appliance fault monitoring device
Channel, the separation calibration circuit will with variable resistance RW1, variable resistance RW2 and capacitor C4, capacitor C3 composition split circuit
Signal is divided into the two paths of signals of same frequency various amplitude, is reached using the access internal resistance value ratio of variable resistance RW1, variable resistance RW2
To the effect of separation signal, while resistance value ratio that is to say two paths of signals amplitude ratio, and capacitor C3, capacitor C4 are shunt capacitance,
High-frequency signal noise is filtered out, the conduction loss of signal is reduced with triode Q1, triode Q2 composition push-pull circuit all the way, improves
The switching speed of signal, and with capacitor C8- capacitor C10 and resistance R11- resistance R13 composition frequency selection circuit filter out it is single
After the signal of frequency in input signal output circuit, the signal of single-frequency is relatively stable, two road transports variable resistance RW3 and two
Pole pipe D4, diode D5 form rectification circuit and guarantee the stabilization of signal waveform to signal rectification, while using triode Q3, three
Pole pipe Q4 and voltage-stabiliser tube D3 composition constant-current source circuit is stablized in input signal output circuit after signal pressure stabilizing using voltage-stabiliser tube D3
Triode Q3 collector potential realizes the effect for stablizing triode Q4 emitter signal, that is to say the effect for realizing constant current, leads to
It crosses Signal separator respectively to signal calibration, can reduce individually all the way to the error of signal calibration, finally in order to guarantee signal
Consistency, for two paths of signals together in input signal output circuit, last signal output apparatus uses triode Q5, triode Q6
Distorted signals is prevented with resistance R14, resistance R15 composition compound circuit, is sent to household electrical appliance failure prison through signal projector E1
In measurement equipment in alarm module.
The above is that further detailed description of the invention, and it cannot be said that the present invention in conjunction with specific embodiment
Specific implementation is limited only to this；Belonging to the present invention and for those skilled in the technology concerned, it is being based on skill of the present invention
Under the premise of art scheme thinking, it is made expansion and operating method, data replacement, should all fall in the scope of the present invention it
It is interior.
Claims (3)
1. household electrical appliance fault monitoring device, including frequency collection circuit, separation calibration circuit and signal output apparatus, feature
It is: the letter of signal transmission passage input terminal in the frequency collection circuit acquisition household electrical appliance fault monitoring device controlling terminal
Number frequency, which is the channel that controlling terminal receives analog signal in household electrical appliance fault monitoring device, described
Signal is divided by separation calibration circuit with variable resistance RW1, variable resistance RW2 and capacitor C4, capacitor C3 composition split circuit
The two paths of signals of same frequency various amplitude reduces the conducting of signal with triode Q1, triode Q2 composition push-pull circuit all the way
Loss, and the signal that frequency selection circuit filters out single-frequency is formed with capacitor C8- capacitor C10 and resistance R11- resistance R13
Afterwards in input signal output circuit, two road transports variable resistance RW3 and diode D4, diode D5 form rectification circuit to signal
Rectification, at the same it is defeated to input signal after signal pressure stabilizing with triode Q3, triode Q4 and voltage-stabiliser tube D3 composition constant-current source circuit
Out in circuit, last signal output apparatus is anti-with triode Q5, triode Q6 and resistance R14, resistance R15 composition compound circuit
Stop signal distortion, is sent in household electrical appliance fault monitoring device in alarm module through signal projector E1；
Separation calibration circuit includes variable resistance RW1, one end of the 2 connecting resistance R4 of contact of variable resistance RW1, resistance R4's
One end of another terminating resistor R3, one end of the 1 connecting resistance R5 of contact of variable resistance RW1, the contact 3 of variable resistance RW1 connects two
One end of the anode of pole pipe D4, the cathode of diode D5 and capacitor C5, capacitor C6, the cathode of diode D4 meet the another of capacitor C5
The contact 2 at end and variable resistance RW3, the contact 1 of variable resistance RW3 connect the anode of diode D5 and the other end of capacitor C6, can
Power transformation hinders 3 connecting resistance R6 of contact, one end of resistance R8 and one end of capacitor C7 of RW3, another terminating diode D6 of resistance R6
Anode, the emitter of another termination triode Q3 of resistance R8, the base stage of triode Q3 connects cathode and three poles of diode D6
The cathode of the other end of the collector of pipe Q4, the base stage of the collector connecting transistor Q4 of triode Q3 and capacitor C7, voltage-stabiliser tube D3,
Emitter connecting resistance R10, one end of resistance R13 and one end of capacitor C9 of triode Q4, another termination voltage-stabiliser tube of resistance R10
The anode of D3, the contact 2 of another termination variable resistance RW2 of resistance R3 and one end of capacitor C4, the contact 1 of variable resistance RW2
One end of the other end of capacitor C4 and the other end of resistance R5, capacitor C3 is connect, the contact 3 of variable resistance RW2 meets triode Q1, three
The base stage of pole pipe Q2, the collector of triode Q1 meet power supply+5V, and the emitter of triode Q1 connects the emitter and two of triode Q2
The anode of the cathode of pole pipe D7, diode D8, the collector of triode Q1 meet power supply+5V, and the collector of triode Q2 connects variable
One end of resistance R7, variable resistance R7 the other end ground connection, the anode of diode D7 connect diode D8 cathode and resistance R12,
One end of capacitor C8, one end of the other end of another terminating resistor R13 of resistance R12, capacitor C10, another termination of capacitor C8
The other end of capacitor C9 and one end of resistance R11, the other end ground connection of resistance R11, capacitor C10.
2. household electrical appliance fault monitoring device according to claim 1, it is characterised in that: the signal output apparatus includes
Base stage connecting resistance R14, one end of resistance R15 and the emitter of triode Q4 of triode Q5, triode Q5, the collection of triode Q5
One end of electrode connecting resistance R16, another termination power+5V of resistance R14, resistance R16, the emitter of triode Q5 connect triode
The emitter of Q6 and one end of resistance R17, the other end of the base stage connecting resistance R15 of triode Q6, the collector of triode Q6 connect
One end of variable resistance R18, the other end ground connection of variable resistance R18, another termination signal projector E1 of resistance R17.
3. household electrical appliance fault monitoring device according to claim 2, it is characterised in that: the frequency collection circuit 1 is wrapped
Include the signal frequency collector J1 of model SJ-ADC, one end of the power supply termination capacitor C1 of signal frequency collector J1 and power supply
The ground terminal of+5V, signal frequency collector J1 are grounded, the other end and electricity of the output termination capacitor C1 of signal frequency collector J1
Hinder one end of R1, the cathode of voltage-stabiliser tube D1, the plus earth of voltage-stabiliser tube D1, one end and two of another termination capacitor C2 of resistance R1
The anode of pole pipe D2, the other end ground connection of capacitor C2, the other end of the cathode connecting resistance R4 of diode D2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910306603.7A CN109917216B (en) | 2019-04-17 | 2019-04-17 | Household appliance fault monitoring equipment |
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| CN201910306603.7A CN109917216B (en) | 2019-04-17 | 2019-04-17 | Household appliance fault monitoring equipment |
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| CN109917216B CN109917216B (en) | 2021-07-09 |
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| CN110887869A (en) * | 2019-11-29 | 2020-03-17 | 苏业梅 | KYN type high-voltage board dew point detection circuitry |
| CN111653077A (en) * | 2020-05-28 | 2020-09-11 | 苏龙嘎 | Building construction information monitoring system based on Internet of things |
| CN112526431A (en) * | 2020-12-18 | 2021-03-19 | 贵州航天计量测试技术研究所 | Adapter for calibrating sticking/breaking fault voltage of relay life monitoring station and calibration method thereof |
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