CN220439009U - Automatic variable volume injury-preventing high-power audible and visual alarm - Google Patents
Automatic variable volume injury-preventing high-power audible and visual alarm Download PDFInfo
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- CN220439009U CN220439009U CN202321027585.7U CN202321027585U CN220439009U CN 220439009 U CN220439009 U CN 220439009U CN 202321027585 U CN202321027585 U CN 202321027585U CN 220439009 U CN220439009 U CN 220439009U
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- 230000000007 visual effect Effects 0.000 title claims abstract description 29
- 208000027418 Wounds and injury Diseases 0.000 title claims abstract description 11
- 208000014674 injury Diseases 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 45
- 230000006378 damage Effects 0.000 claims abstract description 10
- 230000006698 induction Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 206010014020 Ear pain Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model relates to an automatic variable volume injury-preventing high-power audible and visual alarm, which is characterized in that a plurality of pyroelectric human body infrared sensing detection modules are used for detecting the activities of people in the range of 8 meters around the alarm, after sensing human body infrared signals, signals are output to a volume adjusting circuit, the volume adjusting circuit automatically reduces the output of warning sound to 100 decibels, and after a worker leaves, the volume adjusting circuit automatically restores the original sound decibels, so that the demand of warning on a production site can be met, and whether people work nearby can be detected, the output of warning sound is automatically reduced, and the injury of high-loudness warning sound to the worker on the site is prevented. The novel built circuit has the characteristics of simplicity, reliability and high sensitivity, and can be conveniently connected into various existing audible and visual alarm circuits.
Description
Technical Field
The utility model belongs to the technical field of industrial alarm systems, and particularly relates to an automatic variable volume anti-damage high-power audible and visual alarm.
Background
The audible and visual alarm is a device for sending out warning signals to site personnel through sound and light in dangerous places, and is widely used in industries such as ferrous metallurgy, hoisting machinery, ports and wharfs, transportation, power generation and power supply and the like. In a production workshop with noisy sound, a high-loudness audible and visual alarm with the sound level of about 120 dB is often required to be output to achieve the function of warning in a certain distance, and the actual output of the audible and visual alarm is larger than the rated output of the audible and visual alarm due to the echo reflection and resonance superposition function of a closed place, so that people feel ear pain by more than 120 dB of noise, the people feel deaf temporarily for a few minutes, and hearing is lost when the audible and visual alarm works in the environment for a long time. According to the regulations of noise control design of industrial enterprise field and the standards of noise sanitation of industrial enterprise, when a worker touches noise every working day for 1 hour, the sound-light alarm output by 120 db is the sound pressure at the position 1 meter away from the worker, and the sound pressure in the position 8 meters away from the alarm still reaches more than 102 db and is larger than the standards although the sound pressure level is reduced by 6 db according to the inverse square law every doubled. Therefore, the suddenly sounded high-intensity warning sound can cause harm to the physiology and the psychology of the on-site personnel within the range of 8 meters of the alarm (the more the distance is closer, the more the harm is), and particularly, unnecessary personal casualties and equipment damage accidents can be caused by the action deformation of the on-site personnel.
To sum up, the problems of the existing audible and visual alarm are as follows: whether personnel work in a short distance cannot be perceived, and the high-loudness alarm sound causes injury to the personnel.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides an automatic variable volume injury-preventing high-power audible and visual alarm which can meet the demand of warning on a production site, detect whether personnel work nearby, automatically reduce the output of warning sounds and prevent the injury of high-loudness warning sounds to site workers.
The utility model solves the technical problems by adopting the following technical scheme:
the utility model provides an automatic variable volume prevents damaging high-power audible and visual alarm, includes shell and internal circuit, installs a plurality of pyroelectric human infrared sensing detection module on the shell, internal circuit includes volume adjustment circuit, audible and visual warning signal generation circuit and warning audible and visual drive output circuit, and volume adjustment circuit is connected respectively to a plurality of pyroelectric human infrared sensing detection module, and whether human infrared sensing detection module is used for detecting in the within range has the people to pass through and output the signal of telecommunication, audible and visual warning signal generation circuit connects volume adjustment circuit, and this audible and visual warning signal generation circuit is used for producing alarm signal, and this volume adjustment circuit is used for adjusting alarm signal's volume size, warning audible and visual drive output circuit connects volume adjustment circuit for according to alarm signal output warning sound.
Moreover, the pyroelectric human body infrared induction detection modules are uniformly arranged around the shell.
And moreover, the warning acousto-optic driving output circuit comprises a relay KA5, wherein one end of the relay KA5 is connected with a control signal, and the other end of the relay KA5 is connected with a negative electrode power supply.
Moreover, the acousto-optic warning signal generating circuit and the volume adjusting circuit include: the output triode VT1, the output triode VT2, the output triode VT3, the output triode VT4, the output triode VT5, the warning sound driving triode VT6, the resistor R1, the sliding resistor RP1, the relay KA2, the relay KA3, the relay KA4, the relay KA5, the warning lamp ZD, the acousto-optic warning signal generating module IC5 and the loudspeaker SL, wherein a pyroelectric human body infrared sensing detection module IC1, a pyroelectric human body infrared sensing detection module IC2, a pyroelectric human body infrared sensing detection module IC3 and a pyroelectric human body infrared sensing detection module IC4 are connected in parallel between a positive electrode power supply and a negative electrode power supply, the output end of the pyroelectric human body infrared sensing detection module IC1 is connected with the base electrode of the output triode VT1, the collector electrode of the output triode VT1 is connected with the positive electrode power supply through the relay KA1, and the emitter electrode of the output triode VT1 is connected with the negative electrode power supply; the output end of the pyroelectric human body infrared sensing detection module IC2 is connected with the base electrode of an output triode VT1, the collector electrode of the output triode VT2 is connected with a positive power supply through a relay KA2, and the emitter electrode of the output triode VT1 is connected with a negative power supply; the output end of the pyroelectric human body infrared sensing detection module IC3 is connected with the base electrode of an output triode VT1, the collector electrode of the output triode VT3 is connected with a positive power supply through a relay KA3, and the emitter electrode of the output triode VT1 is connected with a negative power supply; the output end of the pyroelectric human body infrared sensing detection module IC4 is connected with the base electrode of an output triode VT1, the collector electrode of the output triode VT4 is connected with a positive power supply through a relay KA4, and the emitter electrode of the output triode VT4 is connected with a negative power supply; the positive power supply is connected with the collector of the output triode VT5 through the warning lamp ZD, the emitter of the output triode VT5 is connected with the negative power supply, the positive power supply input end of the acousto-optic warning signal generating module IC5 is connected with the positive power supply through the normally open contact KA5, and the negative power supply input end of the acousto-optic warning signal generating module IC5 is connected with the negative power supply; the warning lamp driving signal output end of the acousto-optic warning signal generating module IC5 is connected with the base electrode of the output triode VT5, the warning sound control signal output end of the acousto-optic warning signal generating module IC5 is connected with one end of a resistor R1, the other end of the resistor R1 is respectively connected with the base electrode of a warning sound driving triode VT6, one end of a sliding resistor and the regulating end of the sliding resistor, the other end of the sliding resistor is respectively connected with a negative electrode power supply through a normally open contact KA1, a normally open contact KA2, a normally open contact KA3 and a normally open contact KA4, one end of a loudspeaker SL is connected with a positive electrode power supply, the other end of the loudspeaker SL is connected with the collector electrode of the warning sound driving triode VT6, and the emitter electrode of the triode VT6 is connected with the negative electrode power supply.
The utility model has the advantages and positive effects that:
according to the utility model, a plurality of pyroelectric human body infrared induction detection modules are used for detecting the activities of people in the range of 8 meters around the alarm, after the human body infrared signals are sensed, signals are output to the volume adjusting circuit, the volume adjusting circuit automatically reduces the output of warning sound to 100 dB, and after a worker leaves, the volume adjusting circuit automatically restores the original sound decibel, so that the requirement of warning on a production site can be met, whether people work nearby can be detected, the output of warning sound is automatically reduced, and the damage of high-loudness warning sound to the on-site workers is prevented. The novel built circuit has the characteristics of simplicity, reliability and high sensitivity, and can be conveniently connected into various existing audible and visual alarm circuits.
Drawings
FIG. 1 is a block diagram of the internal circuitry of the present utility model;
FIG. 2 is an internal circuit diagram of the present utility model;
fig. 3 is a schematic diagram of an arrangement position of the pyroelectric infrared sensing detection module of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The utility model provides an automatic variable volume prevents damaging high-power audible and visual alarm, as shown in fig. 1, including shell and internal circuit, wherein 4 pyroelectric human infrared sensing detection module sets up on the shell, and internal circuit includes volume adjustment circuit, audible and visual warning signal generation circuit and warning audible and visual drive output circuit, and volume adjustment circuit is connected respectively to 4 pyroelectric human infrared sensing detection module, and whether the human infrared sensing detection module of pyroelectric is used for detecting in the within range someone and passes through and output the signal of telecommunication, audible and visual warning signal generation circuit connects volume adjustment circuit, and this audible and visual warning signal generation circuit is used for producing alarm signal, and this volume adjustment circuit is used for adjusting alarm signal's volume size, warning audible and visual drive output circuit connects volume adjustment circuit for according to alarm signal output warning sound.
As shown in fig. 3, the 4 pyroelectric human body infrared sensing detection modules are uniformly arranged around the shell (as in the positional relationship of fig. 1-3), and the pyroelectric human body infrared sensing detection modules have the sensing distance adjustable function, and the adjustable distance is not more than 8 meters.
As shown in fig. 2, the warning acousto-optic driving output circuit comprises a relay KA5, wherein one end of the relay KA5 is connected with a control signal, and the other end of the relay KA5 is connected with a negative electrode power supply.
The acousto-optic warning signal generating circuit and the volume adjusting circuit comprise: the output triode VT1, the output triode VT2, the output triode VT3, the output triode VT4, the output triode VT5, the warning sound driving triode VT6, the resistor R1, the sliding resistor RP1, the relay KA2, the relay KA3, the relay KA4, the relay KA5, the warning lamp ZD, the acousto-optic warning signal generating module IC5 and the loudspeaker SL, wherein a pyroelectric human body infrared sensing detection module IC1, a pyroelectric human body infrared sensing detection module IC2, a pyroelectric human body infrared sensing detection module IC3 and a pyroelectric human body infrared sensing detection module IC4 are connected in parallel between a positive electrode power supply and a negative electrode power supply, the output end of the pyroelectric human body infrared sensing detection module IC1 is connected with the base electrode of the output triode VT1, the collector electrode of the output triode VT1 is connected with the positive electrode power supply through the relay KA1, and the emitter electrode of the output triode VT1 is connected with the negative electrode power supply; the output end of the pyroelectric human body infrared sensing detection module IC2 is connected with the base electrode of an output triode VT1, the collector electrode of the output triode VT2 is connected with a positive power supply through a relay KA2, and the emitter electrode of the output triode VT1 is connected with a negative power supply; the output end of the pyroelectric human body infrared sensing detection module IC3 is connected with the base electrode of an output triode VT1, the collector electrode of the output triode VT3 is connected with a positive power supply through a relay KA3, and the emitter electrode of the output triode VT1 is connected with a negative power supply; the output end of the pyroelectric human body infrared sensing detection module IC4 is connected with the base electrode of an output triode VT1, the collector electrode of the output triode VT4 is connected with a positive power supply through a relay KA4, and the emitter electrode of the output triode VT4 is connected with a negative power supply; the positive power supply is connected with the collector of the output triode VT5 through the warning lamp ZD, the emitter of the output triode VT5 is connected with the negative power supply, the positive power supply input end of the acousto-optic warning signal generating module IC5 is connected with the positive power supply through the normally open contact KA5, and the negative power supply input end of the acousto-optic warning signal generating module IC5 is connected with the negative power supply; the warning lamp driving signal output end of the acousto-optic warning signal generating module IC5 is connected with the base electrode of the output triode VT5, the warning sound control signal output end of the acousto-optic warning signal generating module IC5 is connected with one end of a resistor R1, the other end of the resistor R1 is respectively connected with the base electrode of a warning sound driving triode VT6, one end of a sliding resistor and the regulating end of the sliding resistor, the other end of the sliding resistor is respectively connected with a negative electrode power supply through a normally open contact KA1, a normally open contact KA2, a normally open contact KA3 and a normally open contact KA4, one end of a loudspeaker SL is connected with a positive electrode power supply, the other end of the loudspeaker SL is connected with the collector electrode of the warning sound driving triode VT6, and the emitter electrode of the triode VT6 is connected with the negative electrode power supply.
The application process of the utility model is as follows:
when the alarm is input with a control signal (the control signal is an alarm switch signal or an alarm power signal), the control relay KA5 is in suction connection, the power supply of the alarm signal generating module IC5 connected with the normally open contact of KA5 is connected, the 3 pin (namely an alarm lamp driving signal output end) of the alarm signal generating module IC5 sends out an alarm lamp driving signal, the alarm lamp driving triode VT5 is in conduction, and the alarm lamp ZD connected to the collecting electrode of VT5 sends out a light signal. The warning signal generating module IC5 sends out a warning sound control signal from the 4 pins (namely a warning sound control signal output end), the warning sound driving triode VT6 is conducted, and the warning sound loudspeaker LS connected to the collector of the warning sound driving triode VT6 sends out 120 dB warning sound. In the range of 8 meters of the alarm, any pyroelectric human body infrared sensing detection module such as a pyroelectric human body infrared sensing detection module IC1 detects infrared signals radiated by a human body, the output end of the 2 feet (namely the output end of the pyroelectric human body infrared sensing detection module IC 1) of the pyroelectric human body infrared sensing detection module IC1 is changed from low level to high level, an output triode VT1 connected with the 2 feet of the pyroelectric human body infrared sensing detection module IC1 is changed from cut-off to saturated conduction, a relay KA1 connected with the collector of the output triode VT1 is in suction, a potentiometer RP1 connected with the normally open contact KA1 is connected with the relay KA1, due to the partial pressure effect of the RP1 and the connection R1, a warning sound driving triode VT6 connected with the R1 and the RP1 is changed from saturated conduction to amplification, the output sound pressure of a load loudspeaker LS of the collecting electrode of the warning sound driving triode VT6 is reduced to 100 dB from 120 dB, and people nearby the alarm are protected from being hurt by the high warning sound, and other three pyroelectric modules work in the same process.
It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the utility model includes, but is not limited to, the examples described in the detailed description, as other embodiments derived from the technical solutions of the utility model by a person skilled in the art are equally within the scope of the utility model.
Claims (4)
1. An automatic variable volume injury-preventing high-power audible and visual alarm, which is characterized in that: the device comprises a shell and an internal circuit, wherein a plurality of pyroelectric human body infrared sensing detection modules are arranged on the shell, the internal circuit comprises a volume adjusting circuit, an acousto-optic warning signal generating circuit and a warning acousto-optic driving output circuit, the plurality of pyroelectric human body infrared sensing detection modules are respectively connected with the volume adjusting circuit, the pyroelectric human body infrared sensing detection modules are used for detecting whether a person passes through and outputs an electric signal in a range, the acousto-optic warning signal generating circuit is connected with the volume adjusting circuit, the acousto-optic warning signal generating circuit is used for generating a warning signal, the volume adjusting circuit is used for adjusting the volume of the warning signal, and the warning acousto-optic driving output circuit is connected with the volume adjusting circuit and is used for outputting warning sounds according to the warning signal.
2. An automatic variable volume injury prevention high power audible and visual annunciator as claimed in claim 1 wherein: the pyroelectric human body infrared induction detection modules are uniformly arranged around the shell.
3. An automatic variable volume injury prevention high power audible and visual annunciator as claimed in claim 1 wherein: the warning acousto-optic driving output circuit comprises a relay KA5, wherein one end of the relay KA5 is connected with a control signal, and the other end of the relay KA5 is connected with a negative electrode power supply.
4. An automatic variable volume injury prevention high power audible and visual annunciator as claimed in claim 1 wherein: the acousto-optic warning signal generating circuit and the volume adjusting circuit comprise: the output triode VT1, the output triode VT2, the output triode VT3, the output triode VT4, the output triode VT5, the warning sound driving triode VT6, the resistor R1, the sliding resistor RP1, the relay KA2, the relay KA3, the relay KA4, the relay KA5, the warning lamp ZD, the acousto-optic warning signal generating module IC5 and the loudspeaker SL, wherein a pyroelectric human body infrared sensing detection module IC1, a pyroelectric human body infrared sensing detection module IC2, a pyroelectric human body infrared sensing detection module IC3 and a pyroelectric human body infrared sensing detection module IC4 are connected in parallel between a positive electrode power supply and a negative electrode power supply, the output end of the pyroelectric human body infrared sensing detection module IC1 is connected with the base electrode of the output triode VT1, the collector electrode of the output triode VT1 is connected with the positive electrode power supply through the relay KA1, and the emitter electrode of the output triode VT1 is connected with the negative electrode power supply; the output end of the pyroelectric human body infrared sensing detection module IC2 is connected with the base electrode of an output triode VT1, the collector electrode of the output triode VT2 is connected with a positive power supply through a relay KA2, and the emitter electrode of the output triode VT1 is connected with a negative power supply; the output end of the pyroelectric human body infrared sensing detection module IC3 is connected with the base electrode of an output triode VT1, the collector electrode of the output triode VT3 is connected with a positive power supply through a relay KA3, and the emitter electrode of the output triode VT1 is connected with a negative power supply; the output end of the pyroelectric human body infrared sensing detection module IC4 is connected with the base electrode of an output triode VT1, the collector electrode of the output triode VT4 is connected with a positive power supply through a relay KA4, and the emitter electrode of the output triode VT4 is connected with a negative power supply; the positive power supply is connected with the collector of the output triode VT5 through the warning lamp ZD, the emitter of the output triode VT5 is connected with the negative power supply, the positive power supply input end of the acousto-optic warning signal generating module IC5 is connected with the positive power supply through the normally open contact KA5, and the negative power supply input end of the acousto-optic warning signal generating module IC5 is connected with the negative power supply; the warning lamp driving signal output end of the acousto-optic warning signal generating module IC5 is connected with the base electrode of the output triode VT5, the warning sound control signal output end of the acousto-optic warning signal generating module IC5 is connected with one end of a resistor R1, the other end of the resistor R1 is respectively connected with the base electrode of a warning sound driving triode VT6, one end of a sliding resistor and the regulating end of the sliding resistor, the other end of the sliding resistor is respectively connected with a negative electrode power supply through a normally open contact KA1, a normally open contact KA2, a normally open contact KA3 and a normally open contact KA4, one end of a loudspeaker SL is connected with a positive electrode power supply, the other end of the loudspeaker SL is connected with the collector electrode of the warning sound driving triode VT6, and the emitter electrode of the triode VT6 is connected with the negative electrode power supply.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321027585.7U CN220439009U (en) | 2023-04-28 | 2023-04-28 | Automatic variable volume injury-preventing high-power audible and visual alarm |
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| CN202321027585.7U CN220439009U (en) | 2023-04-28 | 2023-04-28 | Automatic variable volume injury-preventing high-power audible and visual alarm |
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| CN220439009U true CN220439009U (en) | 2024-02-02 |
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