CN109612886A - Operating environment precaution device - Google Patents
Operating environment precaution device Download PDFInfo
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- CN109612886A CN109612886A CN201910027765.7A CN201910027765A CN109612886A CN 109612886 A CN109612886 A CN 109612886A CN 201910027765 A CN201910027765 A CN 201910027765A CN 109612886 A CN109612886 A CN 109612886A
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- 239000003990 capacitor Substances 0.000 claims abstract description 90
- 239000000779 smoke Substances 0.000 claims abstract description 52
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 230000003111 delayed effect Effects 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000003500 flue dust Substances 0.000 claims description 5
- 239000003999 initiator Substances 0.000 claims description 3
- 230000032258 transport Effects 0.000 abstract description 29
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 230000010363 phase shift Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/46—One-port networks
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Fire-Detection Mechanisms (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses operating environment precaution devices, including smoke signal Acquisition Circuit, divide push-pull circuit and filtering output circuit, the smoke signal Acquisition Circuit selects the smoke signal collector J1 of model LB-70C to acquire factory work environment smoke signal, the frequency dividing push-pull circuit divides two-way to receive smoke signal Acquisition Circuit output signal, inductance L1 and resistance R7 is used all the way, capacitor C4 composition compound circuit filters out the high-frequency noise in signal, two road transports triode Q1 and resistance R8, capacitor C2 forms delay circuit and is delayed to signal, the low-frequency noise in signal is filtered out with triode Q6 and capacitor C3 simultaneously, and use triode Q4, triode Q5 and capacitor C5 composition switching circuit detects signal, the last filtering output circuit uses resistance R19, resistance R20 and electricity It is exported after holding C6, capacitor C7 composition RC circuit filtering, abnormal signal can be sent to remote control terminal through signal projector E1, can also trigger the work alarm of operating environment warning module.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to operating environment precaution device.
Background technique
21 century is the era of knowledge-driven economy characterized by " informationization ", is related to all trades and professions, and process of bidding and purchasing
Information is also handled by " informationization ", currently, the operating environment safety problem of factory is the problem of each factory must all pay attention to, especially
It is the factory containing flue dust, not only to accomplish to prevent fires, and for the safety of worker, more to utilize information to the operating environment of factory
Change means real-time monitoring, simultaneously because the phenomenon that electromagnetic interference of factory is more, and signal often will appear frequency hopping and distortion, causes
Operating environment monitoring error is larger, seriously threatens the safety and plant efficiency of worker.
So the present invention provides the new scheme of one kind to solve the problems, such as this.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide operating environment precaution device,
Be skillfully constructed, the characteristic of human oriented design, can flue dust situation in the operating environment of real-time monitoring factory, while improving letter
Number transmission stability, it is therefore prevented that signal frequency hopping and distortion.
Its solve technical solution be operating environment precaution device, including smoke signal Acquisition Circuit, frequency dividing push-pull circuit and
Output circuit is filtered, the smoke signal Acquisition Circuit selects the smoke signal collector J1 acquisition factory of model LB-70C to make
Industry environment smoke signal believes electric current with transport and placing device AR1, transport and placing device AR2 and variable resistance RW1 composition voltage conversion circuit
It number is converted into voltage signal, the frequency dividing push-pull circuit divides two-way to receive smoke signal Acquisition Circuit output signal, uses all the way
Inductance L1 and resistance R7, capacitor C4 composition compound circuit filter out the high-frequency noise in signal, while mutually putting with transport and placing device AR3 is same
Big signal, two road transports triode Q1 and resistance R8, capacitor C2 form delay circuit and are delayed to signal, while using triode Q6
The low-frequency noise in signal is filtered out with capacitor C3, and with triode Q4, triode Q5 and capacitor C5 composition switching circuit inspection
Signal is surveyed, finally signal and two road signals input triode Q8, triode Q9 and diode D3, diode D4 composition together all the way
Push-pull circuit in, the last filtering output circuit is with resistance R19, resistance R20 and capacitor C6, capacitor C7 composition RC circuit
It exports, is that is to say as the trigger signal of operating environment warning module after filtering；
The frequency dividing push-pull circuit includes inductance L1, a terminating resistor R7 of inductance L1, one end of resistance R8 and triode Q2
The emitter of collector, triode Q6, the other end of another terminating resistor R7 of inductance L1 and one end of capacitor C4, capacitor C4's
The non-inverting input terminal of another termination transport and placing device AR3, one end of the anti-phase input terminating resistor R12 of transport and placing device AR3, resistance R15, electricity
Hinder the other end ground connection of R12, the output end of another termination transport and placing device AR3 of resistance R15 and one end, the diode D3 of resistance R16
Anode and triode Q9 base stage, the collector of triode Q9 and another termination power+10V, triode Q2 of resistance R16
Base stage connecting resistance R8 the other end and capacitor C2 one end, one end of the emitter connecting resistance R9 of triode Q2, triode Q6
Base stage connect one end of capacitor C3, the other end ground connection of capacitor C2, capacitor C3, resistance R9, the collector connecting resistance of triode Q6
The cathode of R10, the collector of one end of resistance R14 and triode Q4 and diode D3, diode D4, the base stage of triode Q4
The other end of connecting resistance R10, the emitter of triode Q4 connect one end of capacitor C5 and the base stage of triode Q5, and capacitor C5's is another
One terminating resistor R11, one end of resistance R13 and signal initiator E1, resistance R11 another termination power+6V, triode Q5's
The other end of emitter and resistance R13 ground connection, the other end of the collector connecting resistance R14 of triode Q5, the anode of diode D4
Connect the base stage of triode Q8 and one end of resistance R17, the emitter of triode Q8 connects the emitter and resistance R18 of triode Q9
One end, another termination power -10V of the collector and resistance R17 of triode Q8, resistance R18.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1. filtering out the high-frequency noise in signal with inductance L1 and resistance R7, capacitor C4 composition compound circuit, inductance L1 filters out letter
High frequency spurs in number, capacitor C4 are decoupling capacitor, filter out the high-frequency noise in signal, while mutually putting with transport and placing device AR3 is same
Big signal, amplified signal power, the conduction loss of thermal compensation signal form delay electricity with triode Q1 and resistance R8, capacitor C2
Road is delayed to signal, while filtering out the low-frequency noise in signal with triode Q6 and capacitor C3, and delay circuit plays frequency dividing and moves
The effect of phase can make signal phase shift be divided into two parts and adjust respectively to signal, and wherein capacitor C3 is shunt capacitance, capacitor C3
The effect to signal frequency modulation is realized with capacitor C4；
2. and signal is detected with triode Q4, triode Q5 and capacitor C5 composition switching circuit, when smoke signal collector
When J1 acquires factory work environment smoke signal exception, triode Q4, triode Q5 conducting send out signal through signal projector E1
It send to factory's remote terminal, when smoke signal collector J1 acquisition factory work environment smoke signal is normal, triode Q4,
Triode Q5 is not turned on, and finally signal and two road signals input triode Q8, triode Q9 and diode D3, two poles together all the way
In the push-pull circuit of pipe D4 composition, the load capacity of circuit can be improved and improve switching speed, when smoke signal collector
When J1 acquires factory work environment smoke signal exception, abnormal signal can be sent to long-range control eventually through signal projector E1
End can also trigger the work alarm of operating environment warning module.
Detailed description of the invention
Fig. 1 is the module map of operating environment precaution device of the present invention.
Fig. 2 is the schematic diagram of operating environment precaution device of the present invention.
Fig. 3 is the schematic diagram that push-pull circuit is divided in operating environment precaution device of the present 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 3
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.
Embodiment one, operating environment precaution device, including smoke signal Acquisition Circuit, frequency dividing push-pull circuit and filtering output electricity
Road, the smoke signal Acquisition Circuit select the smoke signal collector J1 of model LB-70C to acquire factory work environment flue dust
Signal converts electricity for current signal with transport and placing device AR1, transport and placing device AR2 and variable resistance RW1 composition voltage conversion circuit
Signal is pressed, the frequency dividing push-pull circuit divides two-way to receive smoke signal Acquisition Circuit output signal, uses inductance L1 and electricity all the way
Resistance R7, capacitor C4 composition compound circuit filter out the high-frequency noise in signal, while with transport and placing device AR3 with phase amplified signal, and two
Road transport triode Q1 and resistance R8, capacitor C2 form delay circuit and are delayed to signal, while using triode Q6 and capacitor C3
The low-frequency noise in signal is filtered out, and detects signal with triode Q4, triode Q5 and capacitor C5 composition switching circuit, most
Afterwards all the way signal and two road signals input together triode Q8, triode Q9 and diode D3, diode D4 composition recommend electricity
In road, the last filtering output circuit is with defeated after resistance R19, resistance R20 and capacitor C6, capacitor C7 composition RC circuit filtering
Out, it that is to say as the trigger signal of operating environment warning module；
The frequency dividing push-pull circuit divides two-way to receive smoke signal Acquisition Circuit output signal, uses inductance L1 and resistance all the way
R7, capacitor C4 composition compound circuit filter out the high-frequency noise in signal, and inductance L1 filters out the high frequency spurs in signal, and capacitor C4 is
Decoupling capacitor filters out the high-frequency noise in signal, while with transport and placing device AR3 with phase amplified signal, amplified signal power, compensation
The conduction loss of signal, two road transports triode Q1 and resistance R8, capacitor C2 form delay circuit and are delayed to signal, use simultaneously
Triode Q6 and capacitor C3 filters out the low-frequency noise in signal, and delay circuit plays the role of dividing phase shift, signal can be made to move
Mutually it is divided into two parts and signal is adjusted respectively, wherein capacitor C3 is shunt capacitance, and capacitor C3 and capacitor C4 are realized to signal tune
The effect of frequency, and signal is detected with triode Q4, triode Q5 and capacitor C5 composition switching circuit, when smoke signal acquires
When device J1 acquires factory work environment smoke signal exception, triode Q4, triode Q5 conducting, by signal through signal projector E1
It is sent in factory's remote terminal, when smoke signal collector J1 acquisition factory work environment smoke signal is normal, triode
Q4, triode Q5 are not turned on, finally all the way signal and two road signals input together triode Q8, triode Q9 and diode D3,
In the push-pull circuit of diode D4 composition, the load capacity of circuit can be improved and improve switching speed；
The frequency dividing push-pull circuit specific structure, a terminating resistor R7, one end of resistance R8 and the collection of triode Q2 of inductance L1
The emitter of electrode, triode Q6, the other end of another terminating resistor R7 of inductance L1 and one end of capacitor C4, capacitor C4's is another
The non-inverting input terminal of one termination transport and placing device AR3, one end of the anti-phase input terminating resistor R12 of transport and placing device AR3, resistance R15, resistance
The other end of R12 is grounded, one end of the output end of another termination transport and placing device AR3 of resistance R15 and resistance R16, diode D3
The base stage of anode and triode Q9, the collector of triode Q9 and another termination power+10V of resistance R16, triode Q2's
The other end of base stage connecting resistance R8 and one end of capacitor C2, one end of the emitter connecting resistance R9 of triode Q2, triode Q6's
Base stage connects one end of capacitor C3, the other end ground connection of capacitor C2, capacitor C3, resistance R9, the collector connecting resistance of triode Q6
The cathode of R10, the collector of one end of resistance R14 and triode Q4 and diode D3, diode D4, the base stage of triode Q4
The other end of connecting resistance R10, the emitter of triode Q4 connect one end of capacitor C5 and the base stage of triode Q5, and capacitor C5's is another
One terminating resistor R11, one end of resistance R13 and signal initiator E1, resistance R11 another termination power+6V, triode Q5's
The other end of emitter and resistance R13 ground connection, the other end of the collector connecting resistance R14 of triode Q5, the anode of diode D4
Connect the base stage of triode Q8 and one end of resistance R17, the emitter of triode Q8 connects the emitter and resistance R18 of triode Q9
One end, another termination power -10V of the collector and resistance R17 of triode Q8, resistance R18.
Embodiment two, on the basis of example 1, the filtering output circuit use resistance R19, resistance R20 and capacitor
Exported after C6, capacitor C7 composition RC circuit filtering, filter out clutter in signal, voltage-stabiliser tube D5 pressure stabilizing, that is to say for operating environment it is pre-
The trigger signal of alert module, when smoke signal collector J1 acquires factory work environment smoke signal exception, signal is high electricity
Ordinary mail number can trigger the work alarm of operating environment warning module, this signal output port is connected with operating environment warning module, when
When smoke signal collector J1 acquisition factory work environment smoke signal is normal, signal is low level signal, cannot trigger operation
The work of environmental warning module, the cathode of a termination voltage-stabiliser tube D5 of resistance R19 and the emitter of triode Q8, voltage-stabiliser tube D5 is just
Pole ground connection, one end of another termination capacitor C6 of resistance R19, resistance R20, the other end ground connection of capacitor C6, resistance R20's is another
One end of one terminating resistor R21, capacitor C7, the other end ground connection of capacitor C7, another termination signal output port of resistance R21.
Implement three, on the basis of example 1, the smoke signal Acquisition Circuit selects the flue dust of model LB-70C
Signal picker J1 acquires factory work environment smoke signal, since the signal of smoke signal collector J1 output is electric current letter
Number, the work of operating environment warning module cannot be triggered, therefore with transport and placing device AR1, transport and placing device AR2 and variable resistance RW1 composition
Current signal is converted voltage signal, power supply termination capacitor C1, the resistance R1 of smoke signal collector J1 by voltage conversion circuit
One end and power supply+5V, smoke signal collector J1 ground terminal ground connection, the output termination capacitor of smoke signal collector J1
One end of C1, the other end of resistance R1 and resistance R2, the cathode of another termination voltage-stabiliser tube D1 of resistance R2 and transport and placing device AR1's is same
Phase input terminal, the plus earth of voltage-stabiliser tube D1, the contact 2 of the anti-phase input termination variable resistance RW1 of transport and placing device AR1 can power transformation
The contact 1 of resistance RW1 connects the output end of transport and placing device AR1 and one end of resistance R3, and the one of the 3 connecting resistance R5 of contact of variable resistance RW1
End, the other end ground connection of resistance R5, the non-inverting input terminal of another termination transport and placing device AR2 of resistance R3 and one end of resistance R6, fortune
Put one end of the anti-phase input terminating resistor R4 of device AR2, the other end ground connection of resistance R4, the output terminating resistor of transport and placing device AR2
The other end of R6 and the collector of triode Q2.
When the present invention is specifically used, operating environment precaution device, including smoke signal Acquisition Circuit, frequency dividing push-pull circuit and filter
Wave output circuit, the smoke signal Acquisition Circuit select the smoke signal collector J1 of model LB-70C to acquire factory work
Environment smoke signal forms voltage conversion circuit for current signal with transport and placing device AR1, transport and placing device AR2 and variable resistance RW1
It is converted into voltage signal, the frequency dividing push-pull circuit divides two-way to receive smoke signal Acquisition Circuit output signal, all the way with electricity
Sense L1 and resistance R7, capacitor C4 composition compound circuit filter out the high-frequency noise in signal, and it is miscellaneous that inductance L1 filters out the high frequency in signal
Wave, capacitor C4 are decoupling capacitor, filter out the high-frequency noise in signal, while with transport and placing device AR3 with phase amplified signal, amplification letter
Number power, the conduction loss of thermal compensation signal, two road transport triode Q1 and resistance R8, capacitor C2 composition delay circuit prolong signal
When, while the low-frequency noise in signal is filtered out with triode Q6 and capacitor C3, delay circuit plays the role of dividing phase shift, can
Signal is adjusted respectively so that signal phase shift is divided into two parts, wherein capacitor C3 is shunt capacitance, and capacitor C3 and capacitor C4 are realized
Effect to signal frequency modulation, and signal is detected with triode Q4, triode Q5 and capacitor C5 composition switching circuit, work as cigarette
When dirt signal picker J1 acquires factory work environment smoke signal exception, triode Q4, triode Q5 conducting, by signal through believing
Number transmitter E1 is sent in factory's remote terminal, when smoke signal collector J1 acquisition factory work environment smoke signal is normal
When, triode Q4, triode Q5 are not turned on, finally all the way signal and two road signals input together triode Q8, triode Q9 and
In the push-pull circuit of diode D3, diode D4 composition, the load capacity of circuit can be improved and improve switching speed, most
The filtering output circuit exports after forming RC circuit filtering with resistance R19, resistance R20 and capacitor C6, capacitor C7 afterwards, namely
It is for the trigger signal of operating environment warning 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. operating environment precaution device, including smoke signal Acquisition Circuit, frequency dividing push-pull circuit and filtering output circuit, feature exist
In the smoke signal Acquisition Circuit selects the smoke signal collector J1 of model LB-70C to acquire factory work environment flue dust
Signal converts electricity for current signal with transport and placing device AR1, transport and placing device AR2 and variable resistance RW1 composition voltage conversion circuit
Signal is pressed, the frequency dividing push-pull circuit divides two-way to receive smoke signal Acquisition Circuit output signal, uses inductance L1 and electricity all the way
Resistance R7, capacitor C4 composition compound circuit filter out the high-frequency noise in signal, while with transport and placing device AR3 with phase amplified signal, and two
Road transport triode Q1 and resistance R8, capacitor C2 form delay circuit and are delayed to signal, while using triode Q6 and capacitor C3
The low-frequency noise in signal is filtered out, and detects signal with triode Q4, triode Q5 and capacitor C5 composition switching circuit, most
Afterwards all the way signal and two road signals input together triode Q8, triode Q9 and diode D3, diode D4 composition recommend electricity
In road, the last filtering output circuit is with defeated after resistance R19, resistance R20 and capacitor C6, capacitor C7 composition RC circuit filtering
Out, it that is to say as the trigger signal of operating environment warning module；
The frequency dividing push-pull circuit includes inductance L1, a terminating resistor R7 of inductance L1, one end of resistance R8 and triode Q2
The emitter of collector, triode Q6, the other end of another terminating resistor R7 of inductance L1 and one end of capacitor C4, capacitor C4's
The non-inverting input terminal of another termination transport and placing device AR3, one end of the anti-phase input terminating resistor R12 of transport and placing device AR3, resistance R15, electricity
Hinder the other end ground connection of R12, the output end of another termination transport and placing device AR3 of resistance R15 and one end, the diode D3 of resistance R16
Anode and triode Q9 base stage, the collector of triode Q9 and another termination power+10V, triode Q2 of resistance R16
Base stage connecting resistance R8 the other end and capacitor C2 one end, one end of the emitter connecting resistance R9 of triode Q2, triode Q6
Base stage connect one end of capacitor C3, the other end ground connection of capacitor C2, capacitor C3, resistance R9, the collector connecting resistance of triode Q6
The cathode of R10, the collector of one end of resistance R14 and triode Q4 and diode D3, diode D4, the base stage of triode Q4
The other end of connecting resistance R10, the emitter of triode Q4 connect one end of capacitor C5 and the base stage of triode Q5, and capacitor C5's is another
One terminating resistor R11, one end of resistance R13 and signal initiator E1, resistance R11 another termination power+6V, triode Q5's
The other end of emitter and resistance R13 ground connection, the other end of the collector connecting resistance R14 of triode Q5, the anode of diode D4
Connect the base stage of triode Q8 and one end of resistance R17, the emitter of triode Q8 connects the emitter and resistance R18 of triode Q9
One end, another termination power -10V of the collector and resistance R17 of triode Q8, resistance R18.
2. operating environment precaution device as described in claim 1, which is characterized in that the filtering output circuit includes resistance R19, electricity
The cathode of a termination voltage-stabiliser tube D5 of R19 and the emitter of triode Q8 are hindered, the plus earth of voltage-stabiliser tube D5, resistance R19's is another
One end of one termination capacitor C6, resistance R20, the other end ground connection of capacitor C6, another terminating resistor R21, the capacitor C7 of resistance R20
One end, capacitor C7 the other end ground connection, another termination signal output port of resistance R21.
3. operating environment precaution device as described in claim 1, which is characterized in that the smoke signal Acquisition Circuit includes model
The power supply termination capacitor C1 of the smoke signal collector J1 of LB-70C, smoke signal collector J1, one end of resistance R1 and power supply+
The ground terminal of 5V, smoke signal collector J1 is grounded, the output termination capacitor C1 of smoke signal collector J1, resistance R1 it is another
The one end at end and resistance R2, the cathode of another termination voltage-stabiliser tube D1 of resistance R2 and the non-inverting input terminal of transport and placing device AR1, voltage-stabiliser tube
The plus earth of D1, the contact 2 of the anti-phase input termination variable resistance RW1 of transport and placing device AR1, the contact 1 of variable resistance RW1 connects fortune
Put the output end of device AR1 and one end of resistance R3, one end of the 3 connecting resistance R5 of contact of variable resistance RW1, the other end of resistance R5
Ground connection, the non-inverting input terminal of another termination transport and placing device AR2 of resistance R3 and one end of resistance R6, the anti-phase input of transport and placing device AR2
One end of terminating resistor R4, the other end ground connection of resistance R4, the other end and triode of the output terminating resistor R6 of transport and placing device AR2
The collector of Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027765.7A CN109612886B (en) | 2019-01-11 | 2019-01-11 | Working environment early warning device |
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|---|---|---|---|
| CN201910027765.7A CN109612886B (en) | 2019-01-11 | 2019-01-11 | Working environment early warning device |
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| CN109612886B CN109612886B (en) | 2020-05-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460796A (en) * | 2019-08-30 | 2019-11-15 | 郑州工程技术学院 | A kind of industrial equipment operation monitoring signal adjusting circuit |
| CN111426914A (en) * | 2020-04-29 | 2020-07-17 | 刘莹雪 | 5G communication cable fault monitoring system |
| CN111585584A (en) * | 2020-05-06 | 2020-08-25 | 白有华 | 5G communication cable signal transmission system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046244U (en) * | 1988-06-08 | 1989-10-18 | 张善绥 | Automatic warning device |
| CN2410522Y (en) * | 1999-12-10 | 2000-12-13 | 大连大工连田科技有限公司 | Gas alarm cut-off device |
| CN2779394Y (en) * | 2005-02-05 | 2006-05-10 | 沙胜利 | Multifunctional alarm controller for harmful gas with purification function |
| CN102298159A (en) * | 2010-06-22 | 2011-12-28 | 上海多科电子科技有限公司 | Metal detector |
| CN203720586U (en) * | 2014-01-14 | 2014-07-16 | 南京信息工程大学 | Air conditioner cooling fin dust automation monitor based on ARM inner core |
| US9677986B1 (en) * | 2014-09-24 | 2017-06-13 | Amazon Technologies, Inc. | Airborne particle detection with user device |
-
2019
- 2019-01-11 CN CN201910027765.7A patent/CN109612886B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046244U (en) * | 1988-06-08 | 1989-10-18 | 张善绥 | Automatic warning device |
| CN2410522Y (en) * | 1999-12-10 | 2000-12-13 | 大连大工连田科技有限公司 | Gas alarm cut-off device |
| CN2779394Y (en) * | 2005-02-05 | 2006-05-10 | 沙胜利 | Multifunctional alarm controller for harmful gas with purification function |
| CN102298159A (en) * | 2010-06-22 | 2011-12-28 | 上海多科电子科技有限公司 | Metal detector |
| CN203720586U (en) * | 2014-01-14 | 2014-07-16 | 南京信息工程大学 | Air conditioner cooling fin dust automation monitor based on ARM inner core |
| US9677986B1 (en) * | 2014-09-24 | 2017-06-13 | Amazon Technologies, Inc. | Airborne particle detection with user device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460796A (en) * | 2019-08-30 | 2019-11-15 | 郑州工程技术学院 | A kind of industrial equipment operation monitoring signal adjusting circuit |
| CN110460796B (en) * | 2019-08-30 | 2021-04-27 | 中瑞恒（北京）科技有限公司 | Industrial equipment operation monitoring signal regulating circuit |
| CN111426914A (en) * | 2020-04-29 | 2020-07-17 | 刘莹雪 | 5G communication cable fault monitoring system |
| CN111585584A (en) * | 2020-05-06 | 2020-08-25 | 白有华 | 5G communication cable signal transmission system |
| CN111585584B (en) * | 2020-05-06 | 2022-02-25 | 上海山源电子科技股份有限公司 | 5G communication cable signal transmission system |
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Denomination of invention: Work environment alarm Effective date of registration: 20221230 Granted publication date: 20200515 Pledgee: Bank of Zhengzhou Co.,Ltd. Zhongyuan Science and Technology City Sub branch Pledgor: HENAN XINANLI SAFETY TECHNOLOGY CO.,LTD. Registration number: Y2022980029747 |