CN105894745B - The control method and its warning device and system of intelligent Acousto-optic warning device - Google Patents
The control method and its warning device and system of intelligent Acousto-optic warning device Download PDFInfo
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- CN105894745B CN105894745B CN201410529640.1A CN201410529640A CN105894745B CN 105894745 B CN105894745 B CN 105894745B CN 201410529640 A CN201410529640 A CN 201410529640A CN 105894745 B CN105894745 B CN 105894745B
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Abstract
The control method and its warning device and system, published method of a kind of intelligent Acousto-optic warning device disclosed by the invention be：The control method is：Power supply be transported in different environments power supply line voltage or frequency it is also not identical, acoustic-optic alarm detects the voltage or frequency of power supply line by built-in detection unit automatically, then according to the voltage value of detection or frequency values in different ranges, the automatic acousto-optic alert operation that starts is in different states.Also disclose corresponding warning device and system.Present invention warning function capable of fast starting, save causes delay to be withdrawn since accident review delay or lag occurs, and greatly improves the warning effect of caution device, preferably effect is played, to mitigate the generation of accident.
Description
Technical field
The present invention relates in applying in fields such as construction operation scene, factory, school, house, office building or public places
A kind of warning device control method and equipment, more particularly, in a kind of intelligence of sound-light alarm using multiple warning mode
It can type warning device.
Technical background
The area peoples such as construction site, factory, school, house, office building or public place are numerous, and area distribution face is often
It is very big, between different regions there are many separation, communication from each other is almost impossible.When an accident occurs, it is difficult
It is found in first time and selects the mode correctly coped with that them is notified to withdraw in time.In at the construction field (site), construction environment is past
Toward having various potential risk, especially such as ship, bridge, tunnel, power station, underground engineering construction are constructed.
When emergency event, which such as occurs, may injure the life security of operating personnel, it is necessary to pass through sound and various visible lights et al. in time
The signal that class sense organ can identify is alarmed.It how in time, can with construction personnel effectively according to different degrees of danger
It is easier the risk that the type of alarm of the danger classes recognized notifies them different, when construction personnel being allowed to have sufficient
Between correspondingly take different action and measure.If common lighting system has a power failure, it is alarmed not need, but it is dangerous when, it is dangerous
Degree it is different, just determine whether construction personnel needs to evacuate to safety zone at once.It causes danger anti-with construction personnel after alarming
Should coming, this period is extremely valuable, and the time is shorter, and the safety for on-site personnel is higher.Not with electronic technology
Disconnected sustainable development is increasingly subject to people's concern using electronic information and intelligent control as the Intelligent acousto-optic alarm of means.
There is the deficiency of following aspect in the combined aural and visual alarm of analysis conventional：
(1) when emergency events occur, the time response for opening alarm is slow.Traditional combined aural and visual alarm, usually one
The simple mode kind manually started is only directed to a certain special detection alarm such as fire-smoke detection, cannot predict or real-time detection
The emergency of generation needs to restart alarm equipment alarm after area people finds that emergency occurs, this generally requires one
The fixed time.
(2) light and sound alarm mode immobilize, uncontrollable.It is existing after starting alarm in normal condition
The alarm and scintillation light that field is sounded suddenly can make the personnel in region get a fright and cause in alarm, to add additional personnel's
Danger, simultaneously because the characteristics such as sound and the frequency of color break-up are constant, the degree of emergency danger is cannot be distinguished in Field Force.
(3) traditional combined aural and visual alarm uses high-pressure halogen lamp or common bulb as optical signal, in severe working environment
Lower internal component is easy aged deterioration, and driving circuit is easy to produce failure.Furthermore halogen lamp and common bulb work limitation rate
It is not high, amount of heat can be issued.
(4) traditional combined aural and visual alarm lack of wisdom control technology will either realize the loudness to sound, frequency control
Or realize that the frequency control of color break-up is all extremely difficult.
Summary of the invention
It is an object of the invention to provide a kind of controlling parties of the acoustic-optic alarm of intelligent multiple warning mode
Method.
The control method of intelligent Acousto-optic warning device, it is characterized in that：The control method is：Power supply is in difference
In the environment of be transported to power supply line voltage or frequency it is also not identical, acoustic-optic alarm is automatic by built-in detection unit
The voltage or frequency for detecting power supply line, then according to the voltage value of detection or frequency values in different ranges, automatic starting sound
Light alert operation is in different states.
The rate-determining steps of the above method are：
Step 1：A kind of voltage value and frequency values for selecting setting power supply line are as normal power supply state, in normal power supply
Under state, caution device belongs to dormant state, at this point, illumination functions are in normal luminous if alarm has illumination functions
Illumination condition.
Step 2：One or more different voltage values, frequency values or the voltage value of selection setting power supply line,
The combination of frequency values is as abnormal electrical power state.Under normal power supply power-off or other special emergencies, supply intelligent is cut
Exchange device starts abnormal electrical power and exports different voltage values, frequency values or its described voltage value according to the difference of emergency
With the combinations of voltages of frequency values.At this point, the detection unit of caution device detects the frequency values, voltage value or institute of abnormal electrical power
When stating its frequency and combinations of voltages value, the automatic work for starting caution device is in different alarm conditions.
Step 3：When normal power supply power-off or other special emergencies are released from, the switching of supply intelligent switching equipment is supplied
Electric power up is to normal power supply state.The detection unit of caution device detects that power supply line is restored to the frequency of normal power supply
When rate value, voltage value, alarm condition is automatically terminated, restores dormant state.
Further, the power supply is transported to the voltage of power supply line in different environments or frequency is to set
The associating power supply of fixed two kinds or more different voltages values, frequency values or the voltage value and frequency values, power supply are normal city
Electricity and ups power.
Further, the abnormal electrical power makes ups power according to different urgent feelings by inverter intelligent conversion
Condition exports different frequency values, voltage value or its described frequency values and the group of voltage value is combined into caution device power supply.
Further, the detection unit is made of current rectifying and wave filtering circuit, A/D conversion circuit or waveform shaping circuit,
Voltage waveform is sampled by single-chip microcontroller or counts impulse waveform number in the unit time and is realized.
Further, the detection unit is by current rectifying and wave filtering circuit, detection circuit, trigger, time oscillator and height
Frequency oscillator composition detects voltage value or frequency values triggered time oscillator by detection circuit and high frequency oscillator shakes in fact
It is existing.
The second purpose of the invention is to provide a kind of control methods of the acoustic-optic alarm of intelligent multiple warning mode
Warning device.
The intelligent Acousto-optic warning device, including normal power supply, ups power power supply and caution device, it is described just
The power output end of often power supply and ups power power supply connects with caution device power access end, and the caution device includes
The acousto-optic warning unit of detection unit and alarm function with voltage, frequency or the voltage and combination of frequency detection function,
The detection unit power output end connects with acousto-optic warning unit incoming end, forms the caution device of integral structure.
Further, the acousto-optic warning unit includes warning lamp, loudspeaker or the warning lamp and loudspeaker
Combination.
The third object of the present invention is to provide a kind of control method of the acoustic-optic alarm of intelligent multiple warning mode
Alarm system.
The alarm system of the acoustic-optic alarm of the control method of the intelligent Acousto-optic warning device, the alarm
System is composed of several caution devices, several caution devices are distributed in each region by parallel connection, forms each region
Alarm system, which is connected to a total external input normal power supply and ups power.
Further, the alarm system further includes the headlamp and/or other electrical equipments for being distributed in each region, respectively
The power circuit of a caution device is parallel to respectively on headlamp and/or other electrical equipment power grids, and melting with above-mentioned power grid is one
Body, in the power grid, normal illumination lamp can be independent, be also possible to the illumination shape of the dangerous warning of one kind zero of caution device
State.
Beneficial effects of the present invention：
1, the present invention detects frequency of supply value, voltage value or the frequency values and voltage of caution device by detection unit
The combination of value saves it due to occurring according to the numerical value caution device intelligent decision of detection and the corresponding warning way of starting
Accident review delay or lag cause delay to be withdrawn, and greatly improve the warning effect of caution device, play preferably effect, thus
The generation of mitigation accident.
2, the present invention is other than normal power supply, also by ups power (include single group, two groups or more storage batteries or
Battery combination exports different voltage values) or storage batteries or battery pack by inverter to be converted into exchange electricity output different
Frequency values, voltage value or the frequency values and voltage value combination.The caution device includes voltage detecting, frequency detecting
Or the acousto-optic warning unit of the voltage and frequency while the detection unit detected and warning function, it is examined automatically by detection unit
Voltage, the frequency of power supply are surveyed, and automatically controls caution device work according to testing result in different warning ways, realizes alarm
Device or alarm system intelligent alarm.
3, the present invention need not establish the routes phase such as independent alarm circuit, warning device and alarm system and original illumination
It connects, is connected using plug and play, the needs of quantity and position completely depending on the site environment freely arrange, and are effectively tied
It closes, without special alarm circuit is laid, installation is simple and convenient, is laid at low cost.
4, warning device of the invention includes the combination of warning lamp, loudspeaker or the warning lamp and loudspeaker, can be with
According to different degrees of danger, selection carries out the alarm of different danger classes.Avoid not distinguishing other alarm sides of danger classes
Formula and panic and human and material resources the waste that raw personnel may be caused.
5, warning device of the present invention and the type of alarm of alarm system can be diversified, according to the failure of generation or and dangerous journey
Degree, in time, effectively issues different warning ways, makes on-site personnel have the sufficient time to take and appropriate answers other side
Formula.
Detailed description of the invention
Fig. 1 is the control route functional-block diagram of the embodiment of the present invention 1.
Fig. 2 is the block diagram of the embodiment of the present invention 1.
Fig. 3 is a kind of implementation route distribution map of the embodiment of the present invention 1.
Fig. 4 is the block diagram of the embodiment of the present invention 2.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in further detail.
Embodiment 1
The control method of intelligent Acousto-optic warning device shown in referring to Fig.1, the control method are：Power supply exists
The two or more different voltages of power supply line or frequency are transported under different environment, acoustic-optic alarm passes through built-in detection
Unit detects the voltage or frequency of power supply line automatically, then according to the voltage value of detection or frequency values in different ranges, certainly
Dynamic starting acousto-optic alert operation is in different states.That is, the control method of intelligent Acousto-optic warning device is：It sets two or more
The power supply route of different voltages, frequency or the voltage and frequency, it is single by the way that a detection is arranged on acoustic-optic alarm
Member utilizes voltage, frequency or the voltage and frequency values of the access power circuit of detection unit detection acoustic-optic alarm
Different value starts the different working condition of sound-light alarm according to the different value range of detection.
The above-mentioned power supply route for setting two or more different voltages values, frequency values or the voltage value and frequency values as
Normal mains-supplied and ups power power supply.The detection unit is by detection unit by current rectifying and wave filtering circuit, A/D conversion circuit
Or waveform shaping circuit composition, voltage waveform is sampled by single-chip microcontroller or counts impulse waveform number in the unit time and is realized.
The detection unit is made of current rectifying and wave filtering circuit, detection circuit, trigger, time oscillator and high frequency oscillator, is passed through
Detection circuit detects voltage value or frequency values triggered time oscillator and high frequency oscillator concussion is realized.
Realize the intelligent Acousto-optic warning device of the control method of above-mentioned intelligent Acousto-optic warning device, referring to shown in Fig. 2,
Including normal power supply (external input power supply) 1, ups power 2 and caution device 3, the electricity of the normal power supply 1 and ups power 2
Source output terminal connects with 3 power access end of caution device, and the caution device 3 includes with voltage value, frequency values or institute
State the detection unit of voltage value and frequency values detection function and the acousto-optic warning unit of alarm function, the detection unit and sound
Light alarm unit connects to forming the caution device 3 of integral structure, and the power access end of the caution device 3 is equipped with external neighbouring electricity
The attaching plug of network source socket.
Above-mentioned external input normal power supply 1 is that the certain specific AC or DC of power grid when working normally stablizes electricity
Source, such as 220V alternating current electricity consumption, the ups power 2 by single group storage batteries or battery pack, two groups of storage batteries or battery pack or
Storage batteries more than two or battery pack are constituted.The ups power 2 by inverter be converted into different frequency values, voltage value or
Its described frequency values exchange electricity output with what voltage value combined.The exchange electricity output is by accessing 1 line powering of normal power supply extremely
Caution device 3.The acousto-optic warning unit includes warning lamp 32, loudspeaker 33 or the warning lamp 32 and loudspeaker 33
Combination, the warning lamp 32 can be configured as with illumination functions, i.e. warning lamp 32 can be used as shining in the case where not alarming
Bright lamp uses.Specifically, the detection unit that the voltage detecting, frequency detecting or the voltage and frequency detect simultaneously
4 be three kinds：The first is the effective voltage sample circuit after rectifying and wave-filtering；Second is the step-by-step counting electricity after waveform shaping
Road；The third is the effective voltage sample circuit and the combinational circuit of the pulse-scaling circuit after waveform shaping after rectifying and wave-filtering；
There are three types of acousto-optic warning unit includes, the first is one or more warning lamps 32；Second is one or more speakers 33；
The third is that one or more warning lamps 32 and one or more speakers 33 combine；The detection signal of the detection unit 4
Output end connects with acousto-optic warning cell signal incoming end；The acousto-optic warning unit goes out according to 4 independent detection of detection unit
Normal power supply 1 or the voltage value of the power supply of ups power 2, frequency values detect the voltage value and frequency values in different models simultaneously
It encloses value and carries out the different acousto-optic combination warning way of selection unlatching, caution device can be made to issue different degrees of sound, light
Or the sound and light combination.
The rate-determining steps of above-mentioned intelligent Acousto-optic warning device are：
Step 1：When normal power supply 1, caution device belongs to dormant state, i.e., in alternating current 220V normal power supply, warning
Equipment is dormant state, and as caution device has illumination functions, warning lamp 32 is normal shinny；
Step 2：When normal power supply power-off or when other emergencies, supply intelligent switching equipment according to emergency not
Together, starting abnormal electrical power exports the combinations of voltages of different voltage values, frequency values or described its voltage value and frequency values.I.e.
Ups power 2 exports different frequency values, voltage value or its described frequency values and voltage value combination by inverter intelligent conversion
AC power supply is to caution device.At this point, the detection unit of caution device detects frequency values, the voltage value that ups power 2 is powered
Or its described frequency values and voltage value combination when, the automatic warning function for starting caution device selects its acousto-optic warning unit
Warning way；
Step 3：When normal power supply power-off or other special emergencies are released from, the switching power supply of supply intelligent switching equipment
Power up is to normal power supply state.The detection unit of caution device detects that power supply line is restored to the frequency of normal power supply
When value, voltage value, alarm condition is automatically terminated, restores dormant state.
Such as in construction operation scene, when normal operation, external 1 normal power supply of input normal power supply, voltage and frequency
In value range in normal use, the loudspeaker 33 of caution device 3 is not rung；If warning lamp 32 as illumination when, normally
It is shinny, if not doubling as normal illumination, working status indication can be made.When the power-off of alternating current normal power supply occurs or certain is alarmed
When the alarm of grade, by power supply smart switching by 2 inversion of ups power output according to the different frequency of different alarm levels
The alternating current of value, voltage value or its described frequency values and voltage value combination.Alternating current is by current rectifying and wave filtering circuit, A/D conversion electricity
Voltage value, pulse signal are transmitted to single-chip microcontroller by road or waveform shaping circuit, and single-chip microcontroller is further according to voltage value or unit time
Pulse number judges alarm level and starting caution device 3 opens corresponding type of alarm automatically.Warning lamp 32 can be
Certain in several colors it is equivalent can also can to form rotation with stabilized illumination according to the flash of light of different frequency, light
Fruit.Loudspeaker 33 can trigger simultaneously, when can also be different, carry out necessary combination.When beginning, alarm sound can compare
It is low, it improves gradually, in order to avoid scaring is generated, it is finally stable in highest sound.Size, the type of wave volume can according to need choosing
It selects.When warning device restores normal power supply, when voltage, frequency retrieval are normal, caution device 3 automatically terminates sound-light alarm, restores
Normal operating conditions.
When above-mentioned sound-light alarm starts, the alarm sound of the brightness warning of the warning lamp 32 and the sending of loudspeaker 33,
The warning brightness of its warning lamp 32 or color and the sounding alarm mode of loudspeaker 33 can according to user's sets itself and combination,
Such as：It may be set to：1, power off when warning be：32 lights dim of warning lamp is a little, white light, but can interval flashing；Loudspeaker simultaneously
33 sound are steady, and volume is smaller；2, a little dangerous, the case where submitting to everybody to pay attention to periphery, but do not have to it is alarmed：32 lamp of warning lamp
Light generates low-frequency degree interruption flashing feux rouges, meanwhile, the intermittent alarm of frequency in the generation of loudspeaker 33；3, emergency is (as gone out
Existing accident, danger) when warning be：Warning lamp 32 is frequent rotation alarm feux rouges, and 33 sound of loudspeaker sharply rises and falls.This hair
The sound warning way of the warning brightness of bright warning lamp 32 or color and loudspeaker 33 is not limited to above two mode.
The alarm system of acoustic-optic alarm with above-mentioned intelligent multiple warning mode, the alarm system by
Several caution devices 3 are composed, several caution devices 3 are distributed in each region by parallel connection, form each region
Alarm system, the alarm system power supply lines are connected to a total external input normal power supply 1 and ups power 2, such as scheme
Shown in 3.The power circuit of each caution device 3 in the alarm system be connected in parallel on respectively headlamp 8 and/or other use
It on electric equipment power grid, combines together with headlamp power grid and/or other electrical equipment power grids, i.e., each caution device 3 can basis
Field demand, connection is mounted on the power supply power supply power grid of headlamp 8 or on the power grid of other power supply units, for example, can be in police
Show and plug is set in equipment 3, be inserted on the socket of lighting mains nearby, that is, can be used.
Embodiment 2
Referring to the acoustic-optic alarm of intelligent multiple warning mode shown in Fig. 4, technical characterstic is：Using electronics electricity
Realize that the detection unit passes through current rectifying and wave filtering circuit 5, detection circuit 6, trigger 34, time oscillator 35 and high frequency in road
Oscillator 36 forms, and detects voltage value or frequency values triggered time oscillator by detection circuit 6 and high frequency oscillator shakes in fact
It is existing.Detection unit connects to forming the caution device 3 of integral structure with acousto-optic warning unit.The detection unit 4 passes through inspection
Triggering is changed the concussion time of time oscillator 35, high frequency oscillator 36 by different voltages value, frequency values in survey power supply line
Output voltage etc., to start warning device difference warning effect automatically.Remaining is same as above embodiment.
In application, the warning lamp 32 of caution device 3 and the alarm mode of loudspeaker 33 are by line voltage value, frequency values or institute
It states voltage value and frequency values is combined the control of detection unit 4 of detection, selected according to the range for detecting different voltages value, frequency values
The warning way of selecting property unlatching caution device 3.Specifically, for example, ups power 2 automatically switches when the power-off of alternating current normal power supply
To power supply 2, the DC12V low-voltage direct storage for setting ups power 2 is directly powered, the triggered device 34 of detection circuit 5, time
The detection unit that oscillator 35 and high frequency oscillator 36 combine is detected, and starts warning automatically according to the power input status
Equipment 3, a kind of mode that 32 brightness of 33 sound of loudspeaker and warning lamp etc. of unlatching caution device 3 is set are alarmed；Work as generation
It when failure or accident, is powered by the DC24V of ups power 2, the triggered device 34 of detection circuit 5, time oscillator 35 and high frequency
The detection unit that oscillator 36 combines is detected, and is started caution device 3 according to power input status at this time, is opened warning
The 33 sound mode of loudspeaker of equipment 3 and 32 brightness of LED warning lamp etc. are alarmed in such a way that the another kind set is high-intensitive.
Embodiment 3
The technical characterstic of the present embodiment is：The alarm system further includes the headlamp for being distributed in construction operation each region
8, which uses LED light, which is the complementary warning device of caution device, has warning function, that is, works as warning
When equipment 3 starts warning function, LED illumination lamp 8 is equally played a warning role, and the flash caution, even of different modes can occur
Change color and other effects.Remaining is same as above embodiment.
Claims (9)
1. the control method of intelligent Acousto-optic warning device, it is characterized in that：The control method is：Power supply is different
Voltage or the frequency that power supply line is transported under environment be not also identical, and acoustic-optic alarm is examined automatically by built-in detection unit
The voltage or frequency for surveying power supply line, then start acousto-optic in different ranges according to the voltage value of detection or frequency values automatically
Alert operation is in different states, and the detection unit is by current rectifying and wave filtering circuit, A/D conversion circuit or waveform shaping circuit group
At by single-chip microcontroller, to voltage waveform sampling or in the unit time, counting impulse waveform number is realized.
2. the control method of intelligent Acousto-optic warning device according to claim 1, it is characterized in that：The control of the method
Step is：
Step 1：A kind of voltage value and frequency values for selecting setting power supply line are as normal power supply state, in normal power supply state
Under, caution device belongs to dormant state, at this point, illumination functions are in normal luminous illumination if alarm has illumination functions
State；
Step 2：Selection sets the one or more different voltage values, frequency values or the voltage value, frequency of power supply line
The combination of value is as abnormal electrical power state, and under normal power supply power-off or other special emergencies, supply intelligent switching is set
The standby difference according to emergency, starting abnormal electrical power export different voltage values, frequency values or its described voltage value and frequency
The combinations of voltages of rate value, at this point, the detection unit of caution device detect the frequency values of abnormal electrical power, voltage value or it is described its
When frequency and combinations of voltages value, the automatic work for starting caution device is in different alarm conditions；
Step 3：When normal power supply power-off or other special emergencies are released from, supply intelligent switching equipment switching power supply electricity
Source is restored to normal power supply state, and the detection unit of caution device detects that power supply line is restored to the frequency of normal power supply
When value, voltage value, alarm condition is automatically terminated, restores dormant state.
3. the control method of intelligent Acousto-optic warning device according to claim 1, it is characterized in that：The power supply exists
Voltage or the frequency of power supply line are transported under different environment as two kinds of setting or more different voltages values, frequency values or described
The associating power supply of voltage value and frequency values, power supply are normal alternating current and ups power.
4. the control method of intelligent Acousto-optic warning device according to claim 2, it is characterized in that：The improper confession
Electricity is converted by inverter intelligent makes ups power export different frequency values, voltage value or described according to different emergencies
The group of its frequency values and voltage value is combined into caution device power supply.
5. the control method of intelligent Acousto-optic warning device according to claim 2, it is characterized in that：The detection unit
It is made of current rectifying and wave filtering circuit, detection circuit, trigger, time oscillator and high frequency oscillator, electricity is detected by detection circuit
Whether pressure value or frequency values exceed normal power supply state and triggered time oscillator and high frequency oscillator concussion are realized.
6. intelligent Acousto-optic warning device, including normal power supply (1), ups power power supply (2) and caution device (3), feature
It is：The normal power supply (1) and the power output end of ups power power supply (2) connect with caution device (3) power access end,
The caution device (3) include detection unit with voltage, frequency or the voltage and combination of frequency detection function and
The acousto-optic warning unit of alarm function, the detection unit power output end connect with acousto-optic warning unit incoming end, are formed
The caution device (3) of integral structure, the voltage or frequency that power supply is transported to power supply line in different environments are not yet
Identical, acoustic-optic alarm detects the voltage or frequency of power supply line by built-in detection unit automatically, then according to detection
Voltage value or frequency values in different ranges, the automatic acousto-optic alert operation that starts is in different states, the detection unit
It is made of current rectifying and wave filtering circuit, A/D conversion circuit or waveform shaping circuit, when by single-chip microcontroller to voltage waveform sampling or unit
Interior counting impulse waveform number is realized.
7. intelligent Acousto-optic warning device according to claim 6, it is characterized in that：The caution device (3) includes
The combination of warning lamp (32), loudspeaker (33) or the warning lamp (32) and loudspeaker (33).
8. a kind of alarm system with any intelligent Acousto-optic warning device of claim 6 or 7, it is characterized in that：It is described
Alarm system be composed of several caution devices (3), several caution devices (3) are distributed in each area by parallel connection
Domain forms the alarm system in each region, which is connected to a total external input normal power supply
(1) and ups power (2).
9. alarm system according to claim 8, it is characterized in that：The alarm system further includes being distributed in each region
Headlamp (8) and/or other electrical equipments, the power circuit of each caution device (3) be parallel to respectively headlamp (8) and/or
It on other electrical equipment power grids, combines together with above-mentioned power grid, in the power grid, normal illumination lamp is independent, or warning
The illumination condition of the dangerous warning of one kind zero of equipment (3).
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| CN107592706B (en) * | 2017-10-12 | 2024-01-26 | 中建交通建设集团有限公司 | Lighting energy-saving control device for tunnel in shield construction |
| CN112863089A (en) * | 2020-12-30 | 2021-05-28 | 武汉楚客科技有限公司 | Intelligent control system and method of audible and visual alarm |
| CN112946417A (en) * | 2021-01-27 | 2021-06-11 | 杭州夏众电子科技有限公司 | Electric power monitoring system with fault position detection function |
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| CN101436339A (en) * | 2008-09-11 | 2009-05-20 | 山东大学 | Household apparatus for detecting, controlling and automatically alarming CO, and working method thereof |
| EP2568570A1 (en) * | 2011-09-07 | 2013-03-13 | Neulicht lighting solutions GmbH | Illumination device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08310401A (en) * | 1995-05-17 | 1996-11-26 | Sharp Corp | Alarm warning device |
| WO2010139080A1 (en) * | 2009-06-05 | 2010-12-09 | Sander Elektronik Ag | Electronic circuit for converting a mains-operated luminaire into an emergency luminaire |
| US8716953B2 (en) * | 2009-12-07 | 2014-05-06 | At&T Intellectual Property I, L.P. | Mechanisms for light management |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436339A (en) * | 2008-09-11 | 2009-05-20 | 山东大学 | Household apparatus for detecting, controlling and automatically alarming CO, and working method thereof |
| EP2568570A1 (en) * | 2011-09-07 | 2013-03-13 | Neulicht lighting solutions GmbH | Illumination device |
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