CN106960539A - A kind of fire joint defence smoke detection warning device - Google Patents
A kind of fire joint defence smoke detection warning device Download PDFInfo
- Publication number
- CN106960539A CN106960539A CN201710239065.5A CN201710239065A CN106960539A CN 106960539 A CN106960539 A CN 106960539A CN 201710239065 A CN201710239065 A CN 201710239065A CN 106960539 A CN106960539 A CN 106960539A
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- Prior art keywords
- module
- fire
- sound
- light alarm
- smoke detection
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
Abstract
The invention discloses a kind of fire joint defence smoke detection warning device, including some fire information inductors, some equal communication links of fire information inductor are connected to a sound and light alarm controller；Each fire information inductor includes battery, battery series connection sense cigarette element and controller, and sense cigarette element is electrically connected with the first wireless signal transmission module, the first wireless signal transmission module communication connection controller；Sound and light alarm controller includes power module, and power module is electrically connected with second wireless singal transport module, CPU and sound and light alarm module, and second wireless singal transport module and sound and light alarm module are all connected with the CPU.Beneficial effects of the present invention：It can install indoors, can more accurately judge occur the position of the condition of a fire, the condition of a fire must can be sent to the neighbourhood of outdoor or surrounding as early as possible, rapidly to take effective measure of putting out a fire to save life and property.
Description
Technical field
The present invention relates to fire alarm installation technical field, it particularly relates to which a kind of fire joint defence smoke detection is alarmed
Device.
Background technology
Fire is died people's accident and occurred repeatedly in recent years, particularly the disadvantaged group such as old man, handicapped, resists fire risk
Ability.Often fire it is interim it is powerless puts out a fire to save life and property, and can not escape in the very first time so that miss optimal rescue with
Survival time.Specification sets no Compulsory Feature for the automatic fire alarm system of one-storey house lane area and old residential block,
And existing an automatic equipment which can report a fire（Free-standing smoke detection alarm）Be not suitable under most of daily and particular surroundings
Fire prevention and control demand, and cost is higher, it has not been convenient to a wide range of popularization is used, and effect of preventing and reducing natural disasters does not reach the work that it is undertaken
With.Therefore research and develop it is a kind of be capable of it is sharp capture fire information, while can timely and effectively alarm, and can economic, side
Just it is practical, once and risk arrive, can be within the most short time by condition of a fire control, it is to avoid and reduce the devices of injures and deaths and just seem
It is extremely necessary and important.
Although having many intelligent fire alarm devices on the market at present, its unitary function is confined to a certain space or place
Interior, the notice and transmission capacity of alarm signal are poor.The fire prevention and control of unsuitable one-storey house courtyard.Fire department passes through to all previous
Found in the disposal at fire incident scene, when fire occurs for lane area one-storey house courtyard, old cell, the condition of a fire is found in the very first time
And the personnel puted out a fire to save life and property that are most on the scene soon are often the neighbours on periphery.The people scene of fire of dying having is mounted with free-standing sense really
Cigarette detecting alarm, but acoustic alarm signal is only limited to point out the people in room during fire generation, and the people in room does not escape certainly
Rescue ability；Some fire incidents do not find in the condition of a fire or family nobody in time because of victim, cause to fail to take within the very first time and arrange
Apply.The intensity of a fire has spread diffusion when people around has found, late.
The problem of in correlation technique, effective solution is not yet proposed at present.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of fire joint defence smoke detection warning device,
Ash quarrel waste heat can effectively be utilized, save substantial amounts of coal resources.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of fire joint defence smoke detection warning device, including some fire information inductors, some fire information sensings
The equal communication link of device is connected to a sound and light alarm controller；Each fire information inductor includes battery, the battery string
Connection sense cigarette element and controller, the sense cigarette element are electrically connected with the first wireless signal transmission module, first wireless signal
Transport module communicates to connect the controller；The sound and light alarm controller includes power module, the power module electrical connection
There are second wireless singal transport module, CPU and sound and light alarm module, the second wireless singal transport module and sound and light alarm mould
Block is all connected with the CPU.
Further, the controller include single-chip microcomputer, the single-chip microcomputer connect respectively screen, low battery alarm module,
The communication of the communication terminal of first matching module, the first power end of the sense cigarette element and first wireless signal transmission module
End.
Further, the battery is sequentially connected the power end of first matching module, timing by circuit and vibrated
The second source end of device and the sense cigarette element, the warning end of the sense cigarette element is connected with the input of the first normally opened relay
End, the output end of first normally opened relay by circuit be sequentially connected whistling device, the first buzzer, time-delay relay it is defeated
Enter end and the battery, the normally opened output end of the time-delay relay is sequentially connected first wireless signal by circuit and passed
The power end of defeated module and the single-chip microcomputer.
Further, it is provided with manual reset button on first normally opened relay.
Further, the single-chip microcomputer is passed by being provided with the first wireless signal described in the connection of SOS button
The power end of defeated module, the single-chip microcomputer is also by being provided with the first transmission of wireless signals described in the connection of a pairing button
The power end of module.
Further, the power module includes the photosynthetic silicon energy battery module of solar energy, and the photosynthetic silicon of solar energy can electricity
Pond module includes solar panel and photosynthetic silion cell group.
Further, the sound and light alarm module includes alarm lamp and the second buzzer.
Further, the input of the power module two DC/DC converters in parallel, one of them described DC/DC turns
The input of parallel operation is connected the power end of the second matching module, and the output end series connection CPU of the DC/DC converters and described the
The communication terminal of the power end of two wireless signal transmission modules, second matching module and second wireless singal transport module leads to
Letter the connection CPU, the CPU electrically connect the input of the second normally opened relay, the output end of another DC/DC converters
Connect the output end and the sound and light alarm module of second normally opened relay.
Further, the CPU is also associated with another pairing button.
Further, the fire information inductor is arranged at interior, and the sound and light alarm controller is arranged at outdoor.
Beneficial effects of the present invention：It is convenient, light and handy, it is simply, removable loaded on indoor fire information inductor equipment without fixed
It is dynamic, on indoor wall or other ground within reach can be respectively arranged in indoor not chummery to be one or several,
It can more accurately judge occur the position of the condition of a fire, the condition of a fire must can be sent to the neighbourhood of outdoor or surrounding as early as possible, so that energy is rapid
Take effective measure of putting out a fire to save life and property, prevent and reduce fire hazard, the safety of the personal property of protection also makes the old man for being in weak tendency
Or unable colony can in time get help in danger, escape injury temporarily.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the schematic view of the mounting position of fire joint defence smoke detection warning device described according to embodiments of the present invention；
Fig. 2 is the structure chart of controller described according to embodiments of the present invention；
Fig. 3 is the structural representation of sense cigarette element described according to embodiments of the present invention；
Fig. 4 is sound and light alarm controller sectional view described according to embodiments of the present invention；
Fig. 5 is the circuit theory diagrams of fire information inductor described according to embodiments of the present invention；
Fig. 6 is the circuit theory diagrams one of sound and light alarm controller described according to embodiments of the present invention；
Fig. 7 is the circuit theory diagrams two of sound and light alarm controller described according to embodiments of the present invention.
In figure：
1st, fire information inductor；2nd, sound and light alarm controller；3rd, battery；4th, cigarette element is felt；5th, the first transmission of wireless signals
Module；6th, controller；7th, the first matching module；8th, second wireless singal transport module；9th, screen；10th, low battery alarm module；
11st, manual reset button；12nd, SOS button；13rd, pairing button；14th, the first normally opened relay；15th, whistling device；16th,
One buzzer；17th, time-delay relay；18th, power module；19th, alarm lamp；20th, DC/DC converters；21st, the second normally opened relay
Device；22nd, timing oscillator；23rd, the second matching module；24th, solar panel；25th, photosynthetic silion cell group；26th, the second buzzing
Device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained belongs to what the present invention was protected
Scope.
As shown in figs. 1-7, described a kind of fire joint defence smoke detection warning device according to embodiments of the present invention, if including
Dry fire information inductor 1, the equal communication link of some fire information inductors 1 is connected to a sound and light alarm controller 2；Each institute
Stating fire information inductor 1 includes battery 3, the series connection of the battery 3 sense cigarette element 4 and controller 6, the sense cigarette element 4
The first wireless signal transmission module 5 is electrically connected with, first wireless signal transmission module 5 communicates to connect the controller 6；Institute
Sound and light alarm controller 2 is stated including power module 18, the power module 18 be electrically connected with second wireless singal transport module 8,
CPU and sound and light alarm module, the second wireless singal transport module 8 and sound and light alarm module are all connected with the CPU.
In one particular embodiment of the present invention, the controller 6 includes single-chip microcomputer, and the single-chip microcomputer connects screen respectively
Curtain 9, low battery alarm module 10, the communication terminal of the first matching module 7, the first power end of the sense cigarette element 4 and described the
The communication terminal of one wireless signal transmission module 5.
In one particular embodiment of the present invention in the battery 3 is sequentially connected first pairing by circuit
Power end, timing oscillator 22 and the second source end for feeling cigarette element 4 of module 7, the warning end of the sense cigarette element 4 connect
The input of the first normally opened relay 14 is connected to, the output end of first normally opened relay 14 is sequentially connected by circuit blows a whistle
Device 15, the first buzzer 16, the input of time-delay relay 17 and the battery 3, the time-delay relay 17 it is normally opened defeated
Go out power end and the single-chip microcomputer that end is sequentially connected first wireless signal transmission module 5 by circuit.
In one particular embodiment of the present invention, it is provided with manual reset button on first normally opened relay 14
11。
In one particular embodiment of the present invention, the single-chip microcomputer is connected by being provided with the circuit of SOS button 12
Connect the power end of first wireless signal transmission module 5, circuit of the single-chip microcomputer also by being provided with a pairing button 13
Connect the power end of first wireless signal transmission module 5.
In one particular embodiment of the present invention, the power module 18 includes the photosynthetic silicon energy battery module of solar energy,
The photosynthetic silicon energy battery module of solar energy includes solar panel 24 and photosynthetic silion cell group 25.
In one particular embodiment of the present invention, the sound and light alarm module includes the buzzer of alarm lamp 19 and second
26。
In one particular embodiment of the present invention, the input of the power module 18 two DC/DC converters 20 in parallel
End, the power end of input the second matching module 23 of series connection of one of them DC/DC converter 20, and the DC/DC turn
The output end series connection CPU and the power end of the second wireless singal transport module 8 of parallel operation 20, the He of the second matching module 23
The communication terminal of second wireless singal transport module 8 communicates to connect the CPU, and the CPU electrically connects the second normally opened relay 21
Input, the output ends of another DC/DC converters 20 connects the output end of second normally opened relay 21 and described
Sound and light alarm module.
In one particular embodiment of the present invention, the CPU is also associated with another pairing button 13.
In one particular embodiment of the present invention, the fire information inductor 1 is arranged at interior, the sound and light alarm
Controller 2 is arranged at outdoor.
Understand for convenience the present invention above-mentioned technical proposal, below by way of in specifically used mode to the present invention it is above-mentioned
Technical scheme is described in detail.
Fire joint defence smoke detection warning device of the present invention constitutes for two parts altogether：One is fire information sensing
Device 1；Two be sound and light alarm controller 2.
Fire information inductor 1, is Portable movable smoke sensing device, without line arrangement.Based on network transmission,
Its own can alarm, and can also transmit signal to outdoor sound and light alarm controller 2, flash its alarm lamp 19 and send sound report
It is alert.It is built-in to feel cigarette element 4, carry alarm module, the first wireless signal transmission module 5 and low battery alarm module 10.
It is smoke detector to feel cigarette element 4, output switch amount signal, smoke detector can using the sense of switching value cigarette or
Common cigarette sense connection relay, when the smog that indoor article burning is produced reaches finite concentration, smoke condition can be detected automatically
And signal is sent, sense cigarette element 4 has two power ends, and first power end is connected by circuit with single-chip microcomputer, second source
End is connected by circuit with battery 3, so as to constitute primary Ioops.
Alarm module is connected with sense cigarette element 4, built-in whistling device 15, the first buzzer 16.Fire information inductor 1 is caught
Buzzer can occur after to fire information and blow a whistle sound, the time is -60 seconds 30 seconds, between can human intervention stop, otherwise visually
For the condition of a fire, sense cigarette element 4 confirms that starting alarm module after condition of a fire information sends alarm.
Wireless signal transmission module and matching module collectively form wireless communications chips, and wireless communications chips possess transmitting-receiving work(
Can, the communication modes between wireless communications chips can be realized by LAN or bluetooth.Indoor fire information inductor 1 passes through
Wireless network realizes the signal transmitted in both directions with outdoor sound and light alarm controller 2, and the first wireless signal transmission module 5 uses outer order
BCM43217, BCM6828, BCM6838 chip of the form of piece machine, such as Broadcom, second wireless singal transport module 8 are used
Integrated CPU form, such as MTK7620 and Ralink5350 chips.
Single-chip microcomputer integrated digital to analog converter, single-chip microcomputer is connected to show relevant parameter with screen 9.
Single-chip microcomputer connects a pairing button 13, and CPU also connects a pairing button 13, and fire information inductor is pressed when simultaneously
1 and sound and light alarm controller 2 pairing button 13 when, pairing button 13 give mono- signal of single-chip microcomputer and CPU, while first is wireless
Signal transmission module 5, single-chip microcomputer and battery 3 constitute loop, and CPU controls the second matching module 23 to produce pairing broadcast request,
And launched by second wireless singal transport module 8（If detect multiple fire information inductors 1, according to multiple
The identity that fire information inductor 1 feeds back passes sequentially through second wireless singal transport module 8 and sensed to multiple fire informations
Device 1 sends pairing request）, the first matching module 7 receives to produce after pairing request by the first wireless signal transmission module 5 matches somebody with somebody
To response, and launched by the first wireless signal transmission module 5, the second matching module 23 is transmitted by second wireless singal
Module 8 is received after pairing response, and pairing is completed, and now CPU controls the second normally opened relay 21 to close, alarm lamp 19 and second
Buzzer 26 sends prompting, this also illustrate that simultaneously sound and light alarm controller 2 can normal work, after the completion of pairing, unpaired message
The memory storage being connected by single-chip microcomputer and with CPU.
Single-chip microcomputer connection SOS button 12, SOS button 12 is in parallel with pairing button 13, is promptly asked when pressing
Rescue after button 12, the first wireless signal transmission module 5, single-chip microcomputer and battery 3 constitute loop, the first wireless signal transmission module
5 send a signal to the sound and light alarm controller 2 of outdoor, send out the buzzer 26 of alarm lamp 19 and second of sound and light alarm controller 2
Go out sound and light alarm, neighbours or passerby is sued and laboured as early as possible.
Manual reset button 11 is provided with normally opened relay 14, the homing action for performing relay.
During specific works, when fire information inductor 1 detects indoor smog by feeling cigarette element 4, automatically by first
Wireless signal transmission module 5 is sent to the sound and light alarm controller 2 for being placed in outdoor, and sound and light alarm controller 2 is then with alarm lamp 19
Flash and control the second buzzer 26 to send audible alarm.
Power end, timing oscillator 22 and two power ends for feeling cigarette element 4 of first matching module 7（First electricity
Source and second source end）, single-chip microcomputer and battery 3 constitute a closed-loop path, and in real-time "on" position, timing oscillator
Ion in air outside 22 meeting timing collection fire information inductors 1, carries out frequency sensing within the time of setting.
After sense cigarette element 4 perceives finite concentration smog ion, the warning end of sense cigarette element 4 controls the first normally opened relay
Device 14 is closed, battery 3, time-delay relay 17, whistling device 15, the first buzzer 16, the first normally opened relay 14, second source
Hold the loop conducting between single-chip microcomputer, buzzing, blow a whistle to point out indoor occupant, time-delay relay 17 starts timing, now may be used
To carry out hand-reset by manual reset button 11, normally opened relay 14 is again off, and to cancel alarm, and makes delay relay
The timing of device 17 is cancelled, and sound and light alarm controller 2 does not work.
When the timing of time-delay relay 17 is completed（In such as one minute）Homing action is not carried out, and time-delay relay 17 is normally opened defeated
Go out end closure, the loop conducting between battery 3, time-delay relay 17, the first wireless signal transmission module 5 and single-chip microcomputer, the
One wireless signal transmission module 5 can be sent signal on the sound and light alarm controller 2 of outdoor, form outdoor alarm.
Sound and light alarm controller 2 can be powered using solar energy module, be installed on outdoor.Its built-in second wireless singal transmission
Module 8.When the condition of a fire occurs, the signal sent by fire information inductor 1 in the receiving chamber of second wireless singal transport module 8,
Now CPU controls the second normally opened relay 21 to close, and the buzzer 26 of alarm lamp 19 and second is powered, and the second buzzer 26 sends one
The sound of decibel is determined, alarm lamp 19 sends the light flash of high brightness, to reach to the purpose for around passing on condition of a fire information.
Second wireless singal transport module 8 is by wireless network signal, the nothing for fire information inductor 1 in receiving chamber
Line, second wireless singal transport module 8 is connected with sound and light alarm module.Power module 18 utilizes the solar energy of environment-friendly type
Close silicon energy battery module and provide electricity for whole sound and light alarm controller 2, without connection, install convenient, environmental protection is topmost
It is to reduce Disaster cause, such electric device is preferably minimized to calamity coefficient in itself.Meanwhile, reduce to change because of aging circuit and tie up
The cost of manpower and materials produced by repairing, is also not in because not enough power supply causes the situation that equipment can not work.According to national gas
As number of units evidence, the data display of year illumination degree of convergence, the average sunshine of current northern area more than 110 days, therefore it can ensure substantially
The normal power supply sound and light alarm module of equipment is the buzzer 26 of alarm lamp 19 and second, and its power supply connects with solar battery sheet.
Once receiving the signal of inside fire inductor, sound and light alarm module starts, and alarm lamp 19 is flashed, and the second buzzer 26 is sent
Sound, reaches warning effect.
To sum up, it is convenient, light and handy by means of the above-mentioned technical proposal of the present invention, simply, sense loaded on indoor fire information
Device equipment may move without fixed, on indoor wall or other ground within reach can respectively pacify to be one or several
It loaded in indoor not chummery, can more accurately judge occur the position of the condition of a fire, the condition of a fire must can be sent to outdoor or week as early as possible
The neighbourhood enclosed, rapidly to take effective measure of putting out a fire to save life and property, prevents and reduces fire hazard, the peace of the personal property of protection
Entirely, the old man in weak tendency or unable colony is got help in time temporarily in danger, escape injury..
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modifications, equivalent substitutions and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of fire joint defence smoke detection warning device, including some fire information inductors（1）, it is characterised in that it is some
The fire information inductor（1）Equal communication link is connected to a sound and light alarm controller（2）；Each fire information inductor
（1）Including battery（3）, the battery（3）Series connection sense cigarette element（4）And controller（6）, the sense cigarette element（4）It is electrically connected
It is connected to the first wireless signal transmission module（5）, first wireless signal transmission module（5）Communicate to connect the controller（6）；
The sound and light alarm controller（2）Including power module（18）, the power module（18）It is electrically connected with second wireless singal biography
Defeated module（8）, CPU and sound and light alarm module, the second wireless singal transport module（8）Institute is all connected with sound and light alarm module
State CPU.
2. fire joint defence smoke detection warning device according to claim 1, it is characterised in that the controller（6）Bag
Single-chip microcomputer is included, the single-chip microcomputer connects screen respectively（9）, low battery alarm module（10）, the first matching module（7）Communication
End, the sense cigarette element（4）The first power end and first wireless signal transmission module（5）Communication terminal.
3. fire joint defence smoke detection warning device according to claim 2, it is characterised in that the battery（3）It is logical
Cross circuit and be sequentially connected first matching module（7）Power end, timing oscillator（22）With the sense cigarette element（4）
Two power ends, the sense cigarette element（4）Warning end be connected with the first normally opened relay（14）Input, described first is normally opened
Relay（14）Output end whistling device is sequentially connected by circuit（15）, the first buzzer（16）, time-delay relay（17）'s
Input and the battery（3）, the time-delay relay（17）Normally opened output end be sequentially connected described first by circuit
Wireless signal transmission module（5）Power end and the single-chip microcomputer.
4. fire joint defence smoke detection warning device according to claim 3, it is characterised in that the first normally opened relay
Device（14）On be provided with manual reset button（11）.
5. fire joint defence smoke detection warning device according to claim 4, it is characterised in that the single-chip microcomputer is by setting
It is equipped with SOS button（12）Connection described in the first wireless signal transmission module（5）Power end, the single-chip microcomputer
Also by being provided with a pairing button（13）Connection described in the first wireless signal transmission module（5）Power end.
6. fire joint defence smoke detection warning device according to claim 5, it is characterised in that the power module（18）
Including the photosynthetic silicon energy battery module of solar energy, the photosynthetic silicon energy battery module of solar energy includes solar panel（24）And light
Close silion cell group（25）.
7. fire joint defence smoke detection warning device according to claim 6, it is characterised in that the sound and light alarm module
Including alarm lamp（19）With the second buzzer（26）.
8. fire joint defence smoke detection warning device according to claim 7, it is characterised in that the power module（18）
Two DC/DC converters in parallel（20）Input, one of them described DC/DC converter（20）Input series connection second match somebody with somebody
To module（23）Power end, and the DC/DC converters（20）Output end series connection CPU and the second wireless singal transmission
Module（8）Power end, second matching module（23）With second wireless singal transport module（8）The equal communication link of communication terminal
The CPU is met, the CPU electrically connects the second normally opened relay（21）Input, another DC/DC converters（20）It is defeated
Go out end series connection second normally opened relay（21）Output end and the sound and light alarm module.
9. fire joint defence smoke detection warning device according to claim 8, it is characterised in that the CPU is also associated with
Another pairing button（13）.
10. fire joint defence smoke detection warning device according to claim 9, it is characterised in that the fire information sense
Answer device（1）It is arranged at interior, the sound and light alarm controller（2）It is arranged at outdoor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710239065.5A CN106960539A (en) | 2017-04-13 | 2017-04-13 | A kind of fire joint defence smoke detection warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710239065.5A CN106960539A (en) | 2017-04-13 | 2017-04-13 | A kind of fire joint defence smoke detection warning device |
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| Publication Number | Publication Date |
|---|---|
| CN106960539A true CN106960539A (en) | 2017-07-18 |
Family
ID=59483442
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| CN201710239065.5A Pending CN106960539A (en) | 2017-04-13 | 2017-04-13 | A kind of fire joint defence smoke detection warning device |
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| CN112365674A (en) * | 2020-11-13 | 2021-02-12 | 福州大学 | Positionable laboratory safety alarm system and method |
| CN113808361A (en) * | 2021-09-13 | 2021-12-17 | 深圳市长江鑫电气有限公司 | Fire protection device capable of early warning high temperature and early warning system thereof |
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Application publication date: 20170718 |
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| RJ01 | Rejection of invention patent application after publication |