CN107290630A - Detector for electric fire protection circuit - Google Patents
Detector for electric fire protection circuit Download PDFInfo
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- CN107290630A CN107290630A CN201710611435.3A CN201710611435A CN107290630A CN 107290630 A CN107290630 A CN 107290630A CN 201710611435 A CN201710611435 A CN 201710611435A CN 107290630 A CN107290630 A CN 107290630A
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- 238000012545 processing Methods 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 230000003321 amplification Effects 0.000 claims abstract description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 23
- 238000002955 isolation Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 238000012806 monitoring device Methods 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000012905 input function Methods 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 210000000080 chela (arthropods) Anatomy 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 241000256844 Apis mellifera Species 0.000 description 1
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- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/04—Monitoring of the detection circuits
- G08B29/043—Monitoring of the detection circuits of fire detection circuits
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Alarm Systems (AREA)
Abstract
The present invention discloses detector for electric fire protection circuit, including power module, control output module, center processing arithmetic element module, signal gathering unit, human-computer dialogue unit and communication module, the residual current and overcurrent in loaded line are gathered by signal gathering unit, center processing arithmetic element module analysis processing is sent into after amplification filtering process of going forward side by side, and judge whether the current information of detection is abnormal, realizes that the real time fail current information and early warning, alarm, control information of electrical fire-detector are shown；And it is provided with LED light and buzzer, it is ensured that the function of sound and light alarm.
Description
Technical field
The present invention relates to detector field, and in particular to detector for electric fire protection circuit.
Background technology
The background of related to the present invention is illustrated below, but these explanations might not constitute the existing of the present invention
Technology.
Electrical fire monitoring device by a computer as master control upper computer, coordinate fire-proof leakage warning system terminal,
Residual current detector and some breakers with shunted exciter tripping function, master control upper computer is connected to by two lines bus, by answering
A complete fire-proof leakage warning system is constituted with software；Main control computer has inspection, monitoring, audible alarm, printing and inquiry
A variety of functions such as system, complete intelligentized management；The system uses collecting and distributing control program, and a microcomputer can be monitored
512 fireproof electricity-leakage system terminals；Fireproof electricity-leakage system terminal can work independently, and can check use by system terminal scene
The parameters of electricity.
But existing electrical fire monitoring device can be used for the sensing to toxic and harmful gas equipped with gas sensor, match somebody with somebody
There is Smoke Sensor to sense to producing smog, the speed of temperature value and temperature change is felt equipped with temperature sensor
Should, it is not detected to the equipment of itself, once electrical fire monitoring device itself fail, is easy for reporting by mistake
Or failing to report phenomenon, cause fire to report or occur fire by mistake and do not alarm but, heavy losses occur.
The content of the invention
It is an object of the invention to provide detector for electric fire protection circuit, it is arranged in electrical fire monitoring device, uses
Detected in the equipment to itself, prevent unexpected cause damage.
In order to solve the above technical problems, the present invention is achieved through the following technical solutions：Detector for electric fire protection circuit,
Including：
Power module, is connected to loaded line and center processing arithmetic element module, signal will be supplied to adopt after its Power convert
Collect unit, human-computer dialogue unit and communication module electricity consumption；
Signal gathering unit, the current signal of loaded line is gathered by current transformer, then pass through at isolation, amplification and filtering
The connected center processing arithmetic element module of reason feeding；
Center processing arithmetic element module, receives the information of signal gathering unit module transfer and is analyzed and processed and sentenced
It is disconnected, realize that the real time fail current information and early warning, alarm, control information of electrical fire-detector are shown and sound and light alarm work(
Energy；
Communication module, the data transfer of arithmetic element module is handled to monitoring device by center, for realize find failure and
Alarm；
Human-computer dialogue unit, is connected to center processing arithmetic element module, for facilitating user to be directly viewable fire hazard monitoring detection
Device running status and progress parameter setting；
Output module is controlled, the shunt release being connected with the switch on loaded line and center processing arithmetic element mould is arranged on
Between block, for exporting alarm and protection signal and dropout output signal, connected shunt release action control is driven to bear
Carry the switch on circuit.
Preferably, the power module includes load link block, protection filter circuit, AC/DC modules and DC/DC electricity
Road；Second and third end of the load link block is connected to protection filter circuit, and the first end of the load link block then connects
Ground wire is connected to, the protection filter circuit is then connected to the ac input end of AC/DC modules, the output end of the AC/DC modules
Then being connected to DC/DC circuits is used for conversion electric power.
Preferably, the protection filter circuit includes fuse, piezo-resistance, thermistor, the first electric capacity, the second electric capacity
With the 3rd electric capacity, one end of the fuse is connected to the 3rd end of load link block, the other end connection of the fuse
To one end of piezo-resistance, the other end of the piezo-resistance is connected to the second end of load link block, the piezo-resistance
One end be additionally coupled to one end of the first electric capacity, the other end of the piezo-resistance is additionally coupled to the other end of the first electric capacity, institute
The one end for stating the first electric capacity connects one end of the second electric capacity, and the other end of first electric capacity is additionally coupled to the one of the 3rd electric capacity
End, one end of the 3rd electric capacity is additionally coupled to the second ac input end of AC/DC modules, and one end of second electric capacity also connects
One end of thermistor is connected to, the other end of the thermistor is then connected to the first ac input end of AC/DC modules, described
Load the other end all ground wires of first end, the other end of the 3rd electric capacity and the second electric capacity of link block.
Preferably, the DC/DC circuits include the first diode, the first inductance, voltage stabilizing chip, the 4th electric capacity, the 5th electricity
Appearance, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity；One end of 4th electric capacity is connected to the VCC output ends of AC/DC modules, institute
The other end for stating the 4th electric capacity is then connected to the GND ends of AC/DC modules, and one end of the 4th electric capacity is also connected with the first diode
Negative pole, the negative pole of first diode is additionally coupled to the first port of the first inductance, the second port of first inductance
One end of the 5th electric capacity is then connected to, the 3rd port of first inductance is then connected to one end of the 6th electric capacity, the described 6th
One end of electric capacity is also associated with+5V power supplys, and one end of the 6th electric capacity is also connected with one end of the 7th electric capacity, the 7th electric capacity
One end be additionally coupled to the input of voltage stabilizing chip, the output end of the voltage stabilizing chip then connects one end of the 8th electric capacity, described
One end of 8th electric capacity is additionally coupled to VDD power supplys, the other end, the positive pole of the first diode, the 5th electric capacity of the 4th electric capacity
The other end, the other end of the 6th electric capacity, the other end of the 7th electric capacity, the other end of the GND ends of voltage stabilizing chip and the 8th electric capacity
All meet GND.
Preferably, the signal gathering unit includes current transformer, at least one isolation protective circuit and with isolating guarantor
The current sample module of protection circuit connection；The isolation protective circuit includes 3rd resistor, the 3rd optocoupler, first resistor, second
Resistance, the 9th electric capacity, the first clamp diode；Current transformer sampling is connected to loaded line and sampled its residual current
And overcurrent, and one end of 3rd resistor is connected to, the other end of the 3rd resistor is then connected to the second end of the 3rd optocoupler,
The first end of 3rd optocoupler then connects VDD power supplys, and the 4th end of the 3rd optocoupler then connects VCC power supplys, the described 3rd
3rd end of optocoupler then connects one end of first resistor, and the other end of the first resistor then connects one end of second resistance, institute
The one end for stating second resistance is also connected with one end of the 9th electric capacity, and the other end of the second resistance is additionally coupled to the another of the 9th electric capacity
One end, one end of the 9th electric capacity is additionally coupled to one end of the first clamp diode, and the other end of the 9th electric capacity then connects
It is connected to the other end of the first clamp diode；The two ends of first clamp diode are then connected to current sample module.
Preferably, the current sample module includes the first amplifier, the second amplifier, the 4th resistance, the 5th resistance, the 6th electricity
Resistance, the 7th resistance and the tenth electric capacity；One end of first clamp diode is connected to the in-phase input end of the second amplifier, described
The other end of first clamp diode is then connected to one end of the 7th resistance, and the other end of the 7th resistance is then connected to second
The inverting input of amplifier, one end of the 7th resistance is additionally coupled to one end of the 6th resistance, one end of the 6th resistance
The other end of the tenth electric capacity is additionally coupled to, the inverting input of second amplifier is also connected with one end of the 5th resistance, described
The other end of five resistance is additionally coupled to the output end of the second amplifier, and the output end of second amplifier is connected to the same of the first amplifier
Phase input, the other end of the 6th resistance is additionally coupled to the inverting input of the first amplifier, first amplifier it is anti-phase
Input is also connected with one end of the 4th resistance, and the other end of the 4th resistance is connected to the output end of the first amplifier, described
The output end of one amplifier is connected to one end of the tenth electric capacity, and one end of the tenth electric capacity is additionally coupled to center processing arithmetic element
Module.
Preferably, the center processing arithmetic element module uses 24FJ32GA002 single-chip microcomputers, and it is PIC24 series
16bit single-chip microcomputers, there is 16 programmable I/O mouthfuls, Program Flash Memory 32KB, RAMsize8K；It is described man-machine
Dialog unit sets display to be used to detect controlled loop current operational factor in real time, and also setting up keyboard is used to realize human-computer dialogue
Input function, also setting up LED light is used to indicate electrical fire monitoring detection device running status, sets buzzer to be used for
Point out electrical fire monitoring detection device alarm condition.
Preferably, the communication module includes signal sending circuit, receiving processing circuit and anti-surge protection circuit；It is described
Anti-surge protection circuit includes host computer link block, two-way surge diode, the 12nd resistance, rectifier bridge；The host computer
Link block connects one end of the 12nd resistance by the first communication bus, and the host computer link block is total by the second communication
Line is connected to the other end of two-way surge diode, and one end of the 12nd resistance connects one end of two-way surge diode；
One end of the two-way surge diode is additionally coupled to the first input end of rectifier bridge, and its other end is then connected to the of rectifier bridge
Two inputs, the 3rd output end of the rectifier bridge then connects VL- power supplys, and the 4th output end of the rectifier bridge then connects VL+
Power supply.
Preferably, the receiving processing circuit includes the second diode, the 3rd diode, the 4th diode, the five or two pole
Pipe, the 6th diode, the 7th diode, the 11st electric capacity, the 12nd electric capacity, the 13rd electric capacity, the 14th electric capacity, the 15th electricity
Appearance, the 4th optocoupler, the 5th optocoupler, the 13rd resistance, the 14th resistance, the 15th resistance, the 16th resistance, the 17th resistance,
18th resistance, the 19th resistance, the 20th resistance, the 21st resistance, the first triode, the second triode, the three or three pole
Pipe；The positive pole connection VL+ power supplys of second diode, the other end connection VL- power supplys of the 11st electric capacity, described second
The negative pole of diode is then connected to one end of the 13rd resistance, and the other end of the 13rd resistance then connects the 11st electric capacity
One end, the other end of the 13rd resistance is connected to one end of the 14th resistance, and one end of the 14th resistance is also connected with
To the colelctor electrode of the first triode, the other end of the 14th resistance then connects the base stage of the first triode, the described 14th
The other end of resistance is also connected with one end of the 12nd electric capacity, and the base stage of first triode is additionally coupled to the negative of the 3rd diode
Pole, the other end of the 12nd electric capacity is further connected to the positive pole of the other end and the 3rd diode of the 11st electric capacity, institute
The positive pole for stating the 3rd diode is additionally coupled to the other end of the 13rd electric capacity, and one end of the 13rd electric capacity is additionally coupled to first
The emitter stage of triode, the emitter stage of first triode is additionally coupled to one end of the 17th resistance, second diode
Positive pole be additionally coupled to one end of the 15th resistance, the other end of the 15th resistance is then being connected to the 6th diode just
Pole, the negative pole of the 6th diode is then connected to the base stage of the 3rd triode, and one end of the 15th resistance is additionally coupled to
The positive pole of 4th diode, the negative pole of the 4th diode connects the negative pole of the 5th diode, the 5th diode it is negative
Pole then connects one end of the 16th resistance, and the other end of the 16th resistance then connects VL- power supplys, and the 5th diode is just
Pole then connects the other end of the 17th resistance, and the other end of the 17th resistance is additionally coupled to the base stage of the second triode, institute
The emitter stage for stating the second triode is also connected with one end of the 17th resistance, and the colelctor electrode of second triode is then connected to the tenth
One end of nine resistance, the other end of the 19th resistance then connects the first end of the 4th optocoupler, the collection of the 3rd triode
Electrode connects one end of the 18th resistance, and the other end of the 18th resistance then connects the negative pole of the 7th diode, and described the
The negative pole of seven diodes is additionally coupled to the second end of the 4th optocoupler, and the emitter stage of the 3rd triode is connected to the 5th optocoupler
First end, the other end of the 13rd electric capacity is additionally coupled to the positive pole of the 7th diode, the positive pole to the 7th diode
It is connected to the second end of the 5th optocoupler；4th end of the 4th optocoupler then connects one end of the 20th resistance, the described 20th
Another termination VDD power supplys of resistance, one end of the 20th resistance is also connected with one end of the 14th electric capacity, the 14th electricity
3rd end of the other end of appearance and the 4th optocoupler is all grounded, and one end of the 14th electric capacity is additionally coupled to center processing computing list
Element module；The 4th end connection VDD power supplys of 5th optocoupler, the 3rd end of the 5th optocoupler is then connected to the 21st electricity
One end of resistance, one end of the 21st resistance is also connected with one end of the 15th electric capacity, the other end of the 15th electric capacity
All it is grounded with the other end of the 21st resistance；One end of 15th electric capacity is additionally coupled to center processing arithmetic element mould
Block.
Preferably, the signal sending circuit includes the first optocoupler, the second optocoupler, the 8th resistance, the 9th resistance, the tenth electricity
Resistance, the 11st resistance, it is used for the VL power supplys and VDD isolated from power in communication module；The first end of first optocoupler connects
Connect one end of the 8th resistance, another termination VDD power supplys of the 8th resistance, the second end of first optocoupler and the second optocoupler
The second end be connected to center processing arithmetic element module, the 3rd end of first optocoupler and the 3rd end of the second optocoupler are all
VL- power supplys are connect, the first end of second optocoupler connects one end of the 9th resistance, another termination VDD electricity of the 9th resistance
Source, the 4th end of first optocoupler connects one end of the tenth resistance, and the other end of the tenth resistance connects the 11st resistance
One end, one end of the 11st resistance is also connected with VL+ power supplys, and the other end of the 11st resistance is connected to the second optocoupler
The 4th end.
The present invention gathers residual current and overcurrent in loaded line by signal gathering unit, amplification filtering of going forward side by side
Center processing arithmetic element module analysis processing is sent into after processing, and judges whether the current information of detection is abnormal, realizes electric
The real time fail current information of fire detector and early warning, alarm, control information are shown；And it is provided with LED light and honeybee
Ring device, it is ensured that the function of sound and light alarm.
Compared with prior art, the present invention is advantageous in that：1）The residue of signal gathering unit sampling loaded line
Electric current and overcurrent, and by amplification filtering process, strengthen taking the accuracy of data；2）Center processing arithmetic element module pair
The data message for detecting and receiving is judged, analyzed and handled, and realizes the real time fail electric current letter of electrical fire-detector
Breath and early warning, alarm, control information are shown；3）Control output is used to export alarm and protection signal and dropout output signal, drives
Switch on connected shunt release action control loaded line, increases its security；4）Communication module is total by two
Line communication modes are by arc signal real-time data transmission, it is ensured that its promptness alarmed.
Brief description of the drawings
By the embodiment part of offer referring to the drawings, the features and advantages of the present invention will become more
It is readily appreciated that, in the accompanying drawings.
Fig. 1 is the schematic diagram of the detector for electric fire protection circuit of the present invention.
Fig. 2 is the schematic diagram of the power module of the present invention.
Fig. 3 for the present invention signal gathering unit in isolation protective circuit schematic diagram.
Fig. 4 for the present invention signal gathering unit in current sample module schematic diagram.
Fig. 5 for the present invention communication module in signal sending circuit schematic diagram.
Fig. 6 for the present invention communication module in receiving processing circuit schematic diagram.
Embodiment
The illustrative embodiments to the present invention are described in detail with reference to the accompanying drawings；Illustrative embodiments are retouched
State merely for the sake of demonstration purpose, and be definitely not to the present invention and its application or the limitation of usage.
In present embodiment, power module is AC220V/DC5V circuits, and it is by the load electricity consumption in loaded line by protecting
Dangerous silk RF1, piezo-resistance RV1, thermistor NTC, the first electric capacity C1, the second electric capacity C2 and the 3rd electric capacity C3 compositions protection are filtered
After the protection filtering of wave circuit, enter back into AC/DC modules and the AC220V alternating currents for loading electricity consumption are converted into DC5V power supplys, DC5V
Power supply is used to be supplied to collecting unit electricity consumption, and DC5V power supplys are also needed by the first diode D1, the first inductance L1, voltage stabilizing chip
P1, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electric capacity C6, the 7th electric capacity C7, the DC/DC circuits of the 8th electric capacity C8 compositions, will
DC5V Power converts are that DC3.3V power supplys are powered for center processing arithmetic element module, human-computer dialogue unit and communication module.
In present embodiment, signal gathering unit sampled respectively by current transformer residual current in loaded line and
Overcurrent, the current information that current transformer is collected passes through the 3rd optocoupler UP3, first resistor R1, second resistance R2, the 3rd electricity
Hinder the processing feeding current sample module of R3, the 9th electric capacity C9, the isolation protective circuit of the first clamp diode DS1 compositions, electricity
Flowing sampling module includes the 5th resistance R5, the 7th resistance R7, the operational amplification circuit of the second amplifier US2 compositions and the first amplifier
US1, the 4th resistance R4, the filtering and amplifying circuit of the tenth electric capacity C10 compositions, the current information after isolation protective circuit is handled
Filtering and amplifying circuit is entered back into after operational amplification circuit carries out signal amplification and is amplified filtering process, in being then re-fed into
Centre processing arithmetic element module is analyzed and processed.
In present embodiment, second resistance R2 is sampling resistor, is provided with two isolation protective circuits and two in circuit
Current sample module.
In present embodiment, 24FJ32GA002 single-chip microcomputers are used in center processing arithmetic element module, it is PIC24 systems
The 16bit single-chip microcomputers of row, there is 16 programmable I/O mouthfuls, Program Flash Memory 32KB, RAMsize8K；Monolithic
The information for detecting and receiving is judged, analyzed and handled by machine, realizes the real time fail electric current letter of electrical fire-detector
Breath and early warning, alarm, control information are shown and sound and light of alarm；Single-chip microcomputer is received after signal gathering unit gathers and handle
Current information, judge whether electric current abnormal, if any exception, then send audible and visible alarm, control outputting cutting deenergizing, failure is believed
Breath is transferred to host computer.
In present embodiment, the human-computer dialogue unit being connected with center processing arithmetic element module is set to be used to facilitate user
Detector for electric fire protection running status is checked clear and intuitively and parameter setting is carried out, and system is provided with the complete Chinese liquid of LCD
Crystal display, can realize monitoring controlled loop current operational factor in real time；Keyboard is set to complete interactive defeated well
Enter function；LED light is set to indicate detector for electric fire protection running status；Buzzer is set to point out electrical fire detection
Device alarm condition；When there is alarm, detector for electric fire protection sends fire alarm acoustical signal and reminds staff timely
Solution is handled, and this signal can be eliminated manually, and when there is alarm signal input again, fire alarm acoustical signal can be again started up, and be given
Keep, until electrical fire monitoring detection device resets.
In present embodiment, when fault current information of sampling exceedes the value set in center processing arithmetic element module,
It is arranged on the control output between the shunt release being connected with the switch on loaded line and center processing arithmetic element module
Module exports alarm and protection signal and dropout output signal, drives connected shunt release action so that loaded line
On switch disengage；Described to control output module to be switching mode relay, contact capacity is 250V AC/5A.
In present embodiment, communication module is passed the data such as arc signal by customized two lines bus communication modes in real time
It is sent to electrical fire monitoring device；Fault current is such as found that, be can be achieved and alarm；Host computer connects host computer link block
J2, sends 0V, 24V level controling signal, control signal is by receiving by the communication communications of the first communication bus L1 and second L2
Center processing arithmetic element module analysis is re-fed into after process circuit to handle for controlling monitoring detector.
In present embodiment, center processing arithmetic element module sends data-signal and sent by the signal in communication module
Processing of circuit, in the way of electric current and upper machine communication.
In present embodiment, the anti-surge protection circuit in communication module carries out wave resistance by two-way surge diode TVS1
Protection is gushed, and the first optocoupler UP1, the second optocoupler UP2, the 3rd optocoupler UP3, the 3rd optocoupler UP4 structures are provided with communication module
Into light-coupled isolation, and host computer is by sending the second communication communication L224V level controling signals, the communication of 24V high-voltage levels
Mode make it that detector and host communication are stable, and anti-electromagnetic interference capability is strong.
Although with reference to illustrative embodiments, invention has been described, but it is to be understood that the present invention does not limit to
The embodiment that Yu Wenzhong is described in detail and shown, in the case of without departing from claims limited range, this
Art personnel can make various changes to the illustrative embodiments, and protection scope of the present invention is with claims
It is defined, any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement each fall within the present invention's
Protection domain.
Claims (10)
1. detector for electric fire protection circuit, it is characterised in that：
Power module, is connected to loaded line and center processing arithmetic element module, signal will be supplied to adopt after its Power convert
Collect unit, human-computer dialogue unit and communication module electricity consumption；
Signal gathering unit, the current signal of loaded line is gathered by current transformer, then pass through at isolation, amplification and filtering
The connected center processing arithmetic element module of reason feeding；
Center processing arithmetic element module, receives the information of signal gathering unit module transfer and is analyzed and processed and sentenced
It is disconnected, realize that the real time fail current information and early warning, alarm, control information of electrical fire-detector are shown and sound and light alarm work(
Energy；
Communication module, the data transfer of arithmetic element module is handled to monitoring device by center, for realize find failure and
Alarm；
Human-computer dialogue unit, is connected to center processing arithmetic element module, for facilitating user to be directly viewable fire hazard monitoring detection
Device running status and progress parameter setting；
Output module is controlled, the shunt release being connected with the switch on loaded line and center processing arithmetic element mould is arranged on
Between block, for exporting alarm and protection signal and dropout output signal, connected shunt release action control is driven to bear
Carry the switch on circuit.
2. circuit according to claim 1, it is characterised in that：The power module includes load link block（J1）, protect
Protect filter circuit, AC/DC modules and DC/DC circuits；The load link block（J1）Second and third end be connected to protection filtering
Circuit, the load link block（J1）First end be then connected to ground wire, the protection filter circuit is then connected to AC/DC moulds
The ac input end of block, the output end of the AC/DC modules, which is then connected to DC/DC circuits, is used for conversion electric power.
3. circuit according to claim 2, it is characterised in that：The protection filter circuit includes fuse（RF1）, it is pressure-sensitive
Resistance（RV1）, thermistor（NTC）, the first electric capacity（C1）, the second electric capacity（C2）With the 3rd electric capacity（C3）, the fuse
（RF1）One end be connected to load link block（J1）The 3rd end, the fuse（RF1）The other end be connected to pressure-sensitive electricity
Resistance（RV1）One end, the piezo-resistance（RV1）The other end be connected to load link block（J1）The second end, the pressure
Quick resistance（RV1）One end be additionally coupled to the first electric capacity（C1）One end, the piezo-resistance（RV1）The other end be additionally coupled to
First electric capacity（C1）The other end, first electric capacity（C1）One end connect the second electric capacity（C2）One end, it is described first electricity
Hold（C1）The other end be additionally coupled to the 3rd electric capacity（C3）One end, the 3rd electric capacity（C3）One end be additionally coupled to AC/DC
Second ac input end of module, second electric capacity（C2）One end be additionally coupled to thermistor（NTC）One end, the heat
Quick resistance（NTC）The other end be then connected to the first ac input end of AC/DC modules, the load link block（J1）
One end, the 3rd electric capacity（C3）The other end and the second electric capacity（C2）The other end all ground wires.
4. circuit according to claim 3, it is characterised in that：The DC/DC circuits include the first diode（D1）, first
Inductance（L1）, voltage stabilizing chip（P1）, the 4th electric capacity（C4）, the 5th electric capacity（C5）, the 6th electric capacity（C6）, the 7th electric capacity（C7）,
Eight electric capacity（C8）；4th electric capacity（C4）One end be connected to the VCC output ends of AC/DC modules, the 4th electric capacity（C4）
The other end be then connected to the GND ends of AC/DC modules, the 4th electric capacity（C4）One end be also connected with the first diode（D1）'s
Negative pole, first diode（D1）Negative pole be additionally coupled to the first inductance（L1）First port, first inductance（L1）
Second port be then connected to the 5th electric capacity（C5）One end, first inductance（L1）The 3rd port be then connected to the 6th electricity
Hold（C6）One end, the 6th electric capacity（C6）One end be also associated with+5V power supplys, the 6th electric capacity（C6）One end also connect
Connect the 7th electric capacity（C7）One end, the 7th electric capacity（C7）One end be additionally coupled to voltage stabilizing chip（P1）Input, it is described
Voltage stabilizing chip（P1）Output end then connect the 8th electric capacity（C8）One end, the 8th electric capacity（C8）One end be additionally coupled to
VDD power supplys, the 4th electric capacity（C4）The other end, the first diode（D1）Positive pole, the 5th electric capacity（C5）The other end,
Six electric capacity（C6）The other end, the 7th electric capacity（C7）The other end, voltage stabilizing chip（P1）GND ends and the 8th electric capacity（C8）It is another
One end all meets GND.
5. circuit according to claim 4, it is characterised in that：The signal gathering unit includes current transformer, at least
One isolation protective circuit and the current sample module being connected with isolation protective circuit；The isolation protective circuit includes the 3rd electricity
Resistance（R3）, the 3rd optocoupler（UP3）, first resistor（R1）, second resistance（R2）, the 9th electric capacity（C9）, the first clamp diode
（DS1）；Current transformer sampling is connected to loaded line and sampled its residual current and overcurrent, and is connected to the 3rd electricity
Resistance（R3）One end, the 3rd resistor（R3）The other end be then connected to the 3rd optocoupler（UP3）The second end, the 3rd light
Coupling（UP3）First end then connect VDD power supplys, the 3rd optocoupler（UP3）The 4th end then connect VCC power supplys, the described 3rd
Optocoupler（UP3）The 3rd end then connect first resistor（R1）One end, the first resistor（R1）The other end then connect second
Resistance（R2）One end, the second resistance（R2）One end be also connected with the 9th electric capacity（C9）One end, the second resistance
（R2）The other end be additionally coupled to the 9th electric capacity（C9）The other end, the 9th electric capacity（C9）One end be additionally coupled to the first pincers
Position diode（DS1）One end, the 9th electric capacity（C9）The other end be then connected to the first clamp diode（DS1）It is another
End；First clamp diode（DS1）Two ends be then connected to current sample module.
6. circuit according to claim 5, it is characterised in that：The current sample module includes the first amplifier（US1）,
Two amplifiers（US2）, the 4th resistance（R5）, the 5th resistance（R5）, the 6th resistance（R6）, the 7th resistance（R7）With the tenth electric capacity
（C10）；First clamp diode（DS1）One end be connected to the second amplifier（US2）In-phase input end, it is described first pincers
Position diode（DS1）The other end be then connected to the 7th resistance（R7）One end, the 7th resistance（R7）The other end then connect
It is connected to the second amplifier（US2）Inverting input, the 7th resistance（R7）One end be additionally coupled to the 6th resistance（R6）One
End, the 6th resistance（R6）One end be additionally coupled to the tenth electric capacity（C10）The other end, second amplifier（US2）It is anti-
Phase input is also connected with the 5th resistance（R5）One end, the 5th resistance（R5）The other end be additionally coupled to the second amplifier
（US2）Output end, second amplifier（US2）Output end be connected to the first amplifier（US1）In-phase input end, described
Six resistance（R6）The other end be additionally coupled to the first amplifier（US1）Inverting input, first amplifier（US1）It is anti-phase defeated
Enter end and be also connected with the 4th resistance（R4）One end, the 4th resistance（R4）The other end be connected to the first amplifier（US1）It is defeated
Go out end, first amplifier（US1）Output end be connected to the tenth electric capacity（C10）One end, the tenth electric capacity（C10）One
End is additionally coupled to center processing arithmetic element module.
7. circuit according to claim 6, it is characterised in that：The center processing arithmetic element module is used
24FJ32GA002 single-chip microcomputers, it is the 16bit single-chip microcomputers of PIC24 series, there is 16 programmable I/O mouthfuls, Program Flash
Memory 32KB, RAMsize8K；The human-computer dialogue unit sets display to be used to detect controlled loop current operation in real time
Parameter, also setting up keyboard is used to realize interactive input function, and also setting up LED light is used to indicate electrical fire monitoring
Detection device running status, sets buzzer to be used to point out electrical fire monitoring detection device alarm condition.
8. circuit according to claim 7, it is characterised in that：The communication module includes signal sending circuit, transmission and connect
Receive process circuit and anti-surge protection circuit；The anti-surge protection circuit includes host computer link block（J2）, two-way surge
Diode（TVS1）, the 12nd resistance（R12）, rectifier bridge（DD1）；The host computer link block（J2）It is total by the first communication
Line（L1）Connect the 12nd resistance（R12）One end, the host computer link block（J2）Pass through the second communication bus（L2）Even
It is connected to two-way surge diode（TVS1）The other end, the 12nd resistance（R12）One end connect two-way surge diode
（TVS1）One end；The two-way surge diode（TVS1）One end be additionally coupled to rectifier bridge（DD1）First input end, its
The other end is then connected to rectifier bridge（DD1）The second input, the rectifier bridge（DD1）The 3rd output end then connect VL- electricity
Source, the rectifier bridge（DD1）The 4th output end then connect VL+ power supplys.
9. circuit according to claim 8, it is characterised in that：The receiving processing circuit includes the second diode（D2）、
3rd diode（D3）, the 4th diode（D4）, the 5th diode（D5）, the 6th diode（D6）, the 7th diode（D7）,
11 electric capacity（C11）, the 12nd electric capacity（C12）, the 13rd electric capacity（C13）, the 14th electric capacity（C14）, the 15th electric capacity
（C15）, the 4th optocoupler（UP4）, the 5th optocoupler（UP5）, the 13rd resistance（R13）, the 14th resistance（R14）, the 15th resistance
（R15）, the 16th resistance（R16）, the 17th resistance（R17）, the 18th resistance（R18）, the 19th resistance（R19）, the 20th
Resistance（R20）, the 21st resistance（R21）, the first triode（Q1）, the second triode（Q2）, the 3rd triode（Q3）；It is described
Second diode（D2）Positive pole connection VL+ power supplys, the 11st electric capacity（C11）Other end connection VL- power supplys, described the
Two diodes（D2）Negative pole be then connected to the 13rd resistance（R13）One end, the 13rd resistance（R13）The other end then
Connect the 11st electric capacity（C11）One end, the 13rd resistance（R13）The other end be connected to the 14th resistance（R14）'s
One end, the 14th resistance（R14）One end be additionally coupled to the first triode（Q1）Colelctor electrode, the 14th resistance
（R14）The other end then connect the first triode（Q1）Base stage, the 14th resistance（R14）The other end be also connected with the tenth
Two electric capacity（C12）One end, first triode（Q1）Base stage be additionally coupled to the 3rd diode（D3）Negative pole, described
12 electric capacity（C12）The other end be further connected to the 11st electric capacity（C11）The other end and the 3rd diode（D3）Just
Pole, the 3rd diode（D3）Positive pole be additionally coupled to the 13rd electric capacity（C13）The other end, the 13rd electric capacity
（C13）One end be additionally coupled to the first triode（Q1）Emitter stage, first triode（Q1）Emitter stage be additionally coupled to
17th resistance（R17）One end, second diode（D2）Positive pole be additionally coupled to the 15th resistance（R15）One end,
15th resistance（R15）The other end be then connected to the 6th diode（D6）Positive pole, the 6th diode（D6）'s
Negative pole is then connected to the 3rd triode（Q3）Base stage, the 15th resistance（R15）One end be additionally coupled to the 4th diode
（D4）Positive pole, the 4th diode（D4）Negative pole connect the 5th diode（D5）Negative pole, the 5th diode
（D5）Negative pole then connect the 16th resistance（R16）One end, the 16th resistance（R16）The other end then connect VL- power supplys,
5th diode（D5）Positive pole then connect the 17th resistance（R17）The other end, the 17th resistance（R17）It is another
One end is additionally coupled to the second triode（Q2）Base stage, second triode（Q2）Emitter stage be also connected with the 17th resistance
（R17）One end, second triode（Q2）Colelctor electrode be then connected to the 19th resistance（R19）One end, the described tenth
Nine resistance（R19）The other end then connect the 4th optocoupler（UP4）First end, the 3rd triode（Q3）Colelctor electrode connection
18th resistance（R18）One end, the 18th resistance（R18）The other end then connect the 7th diode（D7）Negative pole,
7th diode（D7）Negative pole be additionally coupled to the 4th optocoupler（UP4）The second end, the 3rd triode（Q3）Hair
Emitter-base bandgap grading is connected to the 5th optocoupler（UP5）First end, the 13rd electric capacity（C13）The other end be additionally coupled to the 7th diode
（D7）Positive pole, it is described to the 7th diode（D7）Positive pole be connected to the 5th optocoupler（UP5）The second end；4th optocoupler
（UP4）The 4th end then connect the 20th resistance（R20）One end, the 20th resistance（R20）Another termination VDD electricity
Source, the 20th resistance（R20）One end be also connected with the 14th electric capacity（C14）One end, the 14th electric capacity（C14）'s
The other end and the 4th optocoupler（UP4）The 3rd end be all grounded, the 14th electric capacity（C14）One end be additionally coupled to central processing
Arithmetic element module；5th optocoupler（UP5）The 4th end connection VDD power supplys, the 5th optocoupler（UP5）The 3rd end then
It is connected to the 21st resistance（R21）One end, the 21st resistance（R21）One end be also connected with the 15th electric capacity
（C15）One end, the 15th electric capacity（C15）The other end and the 21st resistance（R21）The other end be all grounded；It is described
15th electric capacity（C15）One end be additionally coupled to center processing arithmetic element module.
10. circuit according to claim 9, it is characterised in that：The signal sending circuit includes the first optocoupler（UP1）、
Second optocoupler（UP2）, the 8th resistance（R8）, the 9th resistance（R9）, the tenth resistance（R10）, the 11st resistance（R11）, it is used for
By the VL power supplys and VDD isolated from power in communication module；First optocoupler（UP1）First end connect the 8th resistance（R8）'s
One end, the 8th resistance（R8）Another termination VDD power supplys, first optocoupler（UP1）The second end and the second optocoupler
（UP2）The second end be connected to center processing arithmetic element module, first optocoupler（UP1）The 3rd end and the second optocoupler
（UP2）The 3rd end all connect VL- power supplys, second optocoupler（UP2）First end connect the 9th resistance（R9）One end, it is described
9th resistance（R9）Another termination VDD power supplys, first optocoupler（UP1）The 4th end connect the tenth resistance（R10）One
End, the tenth resistance（R10）The other end connect the 11st resistance（R11）One end, the 11st resistance（R11）One
End is also connected with VL+ power supplys, the 11st resistance（R11）The other end be connected to the second optocoupler（UP2）The 4th end.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311559091.8A CN117496680A (en) | 2017-07-25 | 2017-07-25 | Electric fire monitoring detector circuit |
| CN201710611435.3A CN107290630A (en) | 2017-07-25 | 2017-07-25 | Detector for electric fire protection circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710611435.3A CN107290630A (en) | 2017-07-25 | 2017-07-25 | Detector for electric fire protection circuit |
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| CN107290630A true CN107290630A (en) | 2017-10-24 |
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| CN202311559091.8A Pending CN117496680A (en) | 2017-07-25 | 2017-07-25 | Electric fire monitoring detector circuit |
| CN201710611435.3A Pending CN107290630A (en) | 2017-07-25 | 2017-07-25 | Detector for electric fire protection circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541361A (en) * | 2018-12-28 | 2019-03-29 | 深圳供电局有限公司 | Device and method for early warning heavy load of branch load on low voltage side of bus |
| CN110824220A (en) * | 2019-11-05 | 2020-02-21 | 上海置信电气股份有限公司 | Novel signal acquisition circuit of electronic sensor |
| CN112180148A (en) * | 2019-07-05 | 2021-01-05 | 上海赋锦信息技术有限公司 | Electric appliance fire detection system and detection method |
| CN112865012A (en) * | 2021-03-01 | 2021-05-28 | 合肥依科普工业设备有限公司 | Electric arc fire protection system |
| CN115311810A (en) * | 2022-08-05 | 2022-11-08 | 扎赉诺尔煤业有限责任公司 | Infrared fire source early warning detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103278734A (en) * | 2013-06-26 | 2013-09-04 | 浙江爱德电子有限公司 | Arc fault detection device and detection method thereof |
| CN207007986U (en) * | 2017-07-25 | 2018-02-13 | 浙江爱德智能科技股份有限公司 | Detector for electric fire protection circuit |
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2017
- 2017-07-25 CN CN202311559091.8A patent/CN117496680A/en active Pending
- 2017-07-25 CN CN201710611435.3A patent/CN107290630A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278734A (en) * | 2013-06-26 | 2013-09-04 | 浙江爱德电子有限公司 | Arc fault detection device and detection method thereof |
| CN207007986U (en) * | 2017-07-25 | 2018-02-13 | 浙江爱德智能科技股份有限公司 | Detector for electric fire protection circuit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541361A (en) * | 2018-12-28 | 2019-03-29 | 深圳供电局有限公司 | Device and method for early warning heavy load of branch load on low voltage side of bus |
| CN112180148A (en) * | 2019-07-05 | 2021-01-05 | 上海赋锦信息技术有限公司 | Electric appliance fire detection system and detection method |
| CN112180148B (en) * | 2019-07-05 | 2024-06-18 | 上海赋锦信息技术股份有限公司 | Electrical appliance fire detection system and detection method |
| CN110824220A (en) * | 2019-11-05 | 2020-02-21 | 上海置信电气股份有限公司 | Novel signal acquisition circuit of electronic sensor |
| CN112865012A (en) * | 2021-03-01 | 2021-05-28 | 合肥依科普工业设备有限公司 | Electric arc fire protection system |
| CN115311810A (en) * | 2022-08-05 | 2022-11-08 | 扎赉诺尔煤业有限责任公司 | Infrared fire source early warning detection system |
| CN115311810B (en) * | 2022-08-05 | 2023-08-04 | 扎赉诺尔煤业有限责任公司 | Infrared ray fire source early warning detecting system |
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| CN117496680A (en) | 2024-02-02 |
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Address after: Yueqing City, Zhejiang province 325604 Liushi Zhen Liu Road No. 168 Applicant after: ZHEJIANG AIDE INTELLIGENT TECHNOLOGY CO.,LTD. Address before: Yueqing City, Liushi town Zhejiang city Wenzhou province 325604 Willow Road No. 168 Applicant before: ZHEJIANG EIT ELECTRON Co.,Ltd. |
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Application publication date: 20171024 |