CN104464182A - Hazardous area infrared ray alarm system - Google Patents
Hazardous area infrared ray alarm system Download PDFInfo
- Publication number
- CN104464182A CN104464182A CN201410626666.8A CN201410626666A CN104464182A CN 104464182 A CN104464182 A CN 104464182A CN 201410626666 A CN201410626666 A CN 201410626666A CN 104464182 A CN104464182 A CN 104464182A
- Authority
- CN
- China
- Prior art keywords
- master controller
- infrared sensor
- infrared ray
- infrared
- audio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 231100001261 hazardous Toxicity 0.000 title claims abstract description 25
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000003321 amplification Effects 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004020 luminiscence type Methods 0.000 claims description 4
- 150000002641 lithium Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000012806 monitoring device Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
- G08B13/191—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using pyroelectric sensor means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses a hazardous area infrared ray alarm system. The hazardous area infrared ray alarm system mainly comprises a working power source, an infrared monitoring device and an intelligent sound-light alarm device. The infrared monitoring device comprises at least one pyroelectric infrared sensor arranged in a hazardous area. The pyroelectric infrared sensor is connected with a master controller through a connected infrared sensor signal processor. The intelligent sound-light alarm device comprises a caution lamp, a voice recording and playing device, an audio power amplifier and a loudspeaker. The master controller is connected with the caution lamp, the audio power amplifier and the voice recording and playing device with a TF card slot, and the master controller and the voice recording and playing device carry out voice playing by the connected audio power amplifier through the loudspeaker. The working power source is a 12V/500mAH rechargeable built-in type lithium battery module. The lithium battery module is provided with a charging port capable of charging a lithium battery through an external charger. The hazardous area infrared ray alarm system has the advantages of being simple in structure, convenient to use, high in reliability and the like.
Description
Technical field
The present invention relates to a kind of hazardous location infrared ray warning system, belong to power equipment Work tool field.
Background technology
Along with China's economic society high speed development, the power consumption of society rises year by year, there is the construction project of the capacity-increasing transformation engineering of a large amount of old electric substations and new electric substation at present every year to improve the power supply capacity of transformer station, to meet constantly soaring power load demand, guarantee the electricity consumption reliability of user.And in the capacity-increasing transformation engineering of old electric substation and the process of construction of new electric substation, all can relate to the civil engineerings such as main transformer foundation, cable duct, trench drain, the construction of oil storage pool excavation.Due to the stage of civil engineering, the hole excavated in civil engineering process, raceway groove etc. do not backfill or arrange shelter timely, workmen, operation maintenance personnel or security personnel are due to need of work, to enter or through relevant range, due to notice worked dispersion, in the place of working at night or light is bad, easily there is the phenomenons such as personnel fall, fall down, the damage of injury to operating personnel's person and relevant device may be caused.Electrical production, safety first, these dangerous points that are newly-built for transformer station and reconstruction and extension project civil engineering operation field carry out control and are necessary.But also there is no a kind of more convenient reliable device in electric system at present, alarm can be sent when personnel enter hazardous location, remind staff to take care, prevent the generation of related accidents.
Summary of the invention
The object of the invention is to the deficiency overcoming above-mentioned existence, and the hazardous location infrared ray alarm device that a kind of structure is simple, practical and convenient, reliability is high is provided.
The present invention is achieved by the following technical solution: a kind of hazardous location infrared ray warning system, it mainly comprises working power, infrared surveillance set and Intelligent acousto-optic warning device, described infrared surveillance set comprises at least one pyroelectric infrared sensor being placed in hazardous location, and this pyroelectric infrared sensor is connected with master controller by the infrared sensor signal processor be connected; Described Intelligent acousto-optic warning device comprises warning lamp, voice recorder, audio-frequency power amplifier and loudspeaker; Described master controller is connected with the voice recorder with TF draw-in groove with warning lamp, audio-frequency power amplifier respectively, and described primary controller respectively carries out playback respectively by the audio-frequency power amplifier be connected through loudspeaker with voice recorder.
Described working power is the chargeable built-in lithium cell module of 12V/500mAH, and this lithium battery module is configured with and external charger can be utilized to carry out charging charging inlet to lithium battery.
Described pyroelectric infrared sensor is configured with the Fresnel Lenses of high-quality; The infrared sensor signal processor be connected with this pyroelectric infrared sensor selects BISS001 chip to process infrared induction signal; this BISS001 chip adopts the numerical model analysis special IC of CMOS technology; be built-in with two-way amplitude discriminator, and there is independently high input impedance operational amplifier.
The ATMEGA16L cake core that the master controller that described infrared sensor signal processor is connected adopts atmel corp to produce is for judging the trigger state that signal processor sends, drive pilot lamp or extend out warning lamp work, controlling voice recording and playback ic by serial ports simultaneously and play warning recording.
Described warning lamp is built-in high brightness red LED lamp, and when receiving the drive singal that master controller sends, luminescence realizes alarm; The voice recorder be connected with master controller selects WT5001 chip, and this chip reads the audio files on the outside TF card inserted in TF draw-in groove, after decoding, is exported the left and right sound track signals of sound according to external control by LHPOUT and RHPOUT.
The audio-frequency power amplifier that described master controller is connected selects PAM8032 as power discharging device, after the voice signal power amplification export, exports loudspeaker to by voice recorder; Described loudspeaker is the built-in speaker being carried out by the voice signal after audio-frequency power amplifier power amplification exporting.
Described master controller is provided with one and for subsequent usely extends out warning lamp interface, and connect by this warning lamp interface that extends out for subsequent use and control to extend out warning lamp.
The present invention has that structure is simple, practical and convenient, safety and reliability high; It is applicable to the newly-built and reorganization and expansion civil engineering field of power system transformer substation preferably, can effectively prevent construction operation field staff, equipment falls, eliminate operation field potential safety hazard, greatly improve construction operation site safety.
Accompanying drawing explanation
Fig. 1 is principle of work process flow diagram of the present invention.
Fig. 2 is infrared induction signal processing circuit schematic diagram of the present invention.
Fig. 3 is audio record circuit schematic diagram of the present invention.
Fig. 4 is audio power amplifying circuit schematic diagram of the present invention.
Fig. 5 is main controller circuit schematic diagram of the present invention.
Fig. 6 is that the present invention extends out warning light circuit schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1, a kind of hazardous location infrared ray warning system, it mainly comprises working power 1, infrared surveillance set and Intelligent acousto-optic warning device, described infrared surveillance set comprises at least one pyroelectric infrared sensor 2 being placed in hazardous location, and this pyroelectric infrared sensor 2 is connected with master controller 4 by the infrared sensor signal processor 3 be connected; Described Intelligent acousto-optic warning device comprises warning lamp 5, voice recorder 7, audio-frequency power amplifier 9 and loudspeaker 10; Described master controller 4 is connected with the voice recorder 7 with TF draw-in groove 8 with warning lamp 5, audio-frequency power amplifier 9 respectively, and described primary controller 4 respectively carries out playback respectively by the audio-frequency power amplifier 9 be connected through loudspeaker 10 with voice recorder 7.
Described working power 1 is the chargeable built-in lithium cell module of 12V/500mAH, and this lithium battery module is configured with and external charger can be utilized to carry out charging charging inlet to lithium battery.
Described pyroelectric infrared sensor 2 is configured with the Fresnel Lenses of high-quality; The infrared sensor signal processor 3 be connected with this pyroelectric infrared sensor 2 selects BISS001 chip to process infrared induction signal; this BISS001 chip adopts the numerical model analysis special IC of CMOS technology; be built-in with two-way amplitude discriminator, and there is independently high input impedance operational amplifier.
The ATMEGA16L cake core that the master controller 4 that described infrared sensor signal processor 3 is connected adopts atmel corp to produce is for judging the trigger state that signal processor sends, drive warning lamp 5 or extend out warning lamp work, controlling voice recording and playback ic by serial ports simultaneously and play warning recording.
Described warning lamp 5 is built-in high brightness red LED lamp, and when receiving the drive singal that master controller 4 sends, luminescence realizes alarm; The voice recorder 7 be connected with master controller 4 selects WT5001 chip, and this chip reads the audio files on the outside TF card inserted in TF draw-in groove 8, after decoding, is exported the left and right sound track signals of sound according to external control by LHPOUT and RHPOUT.
The audio-frequency power amplifier 9 that described master controller 4 is connected selects PAM8032 as power discharging device, after the voice signal power amplification exported by voice recorder 7, exports loudspeaker 10 to; Described loudspeaker 10 is the built-in speaker being carried out by the voice signal after audio-frequency power amplifier power amplification exporting.
Described master controller 4 is provided with one and for subsequent usely extends out warning lamp interface 6, and connect by this warning lamp interface that extends out for subsequent use and control to extend out warning lamp.
Embodiment:
Working power 1 is built-in 12V/500mAH chargeable lithium cell, for other functional modules of device and element provide working power, cruising time can reach 2-3 days, and simultaneously for it is configured with a charging inlet, the charger that available Foreign is applicable to realizes the charging to lithium battery.During device work, any position, hazardous location can be hung on as required, when there being people to enter hazardous location, infrared signal is collected in pyroelectric infrared sensor 2 induction, and transfer the signal to the infrared sensor signal processor 3, differentiated by infrared sensor signal processor 3 pairs of signals and processed, judge whether that the personnel that truly have swarm into hazardous location, and export sense state trigger pip to master controller 4, master controller 4 judges the signal trigger state that infrared sensor signal processor 3 sends, output drive signal, drive pilot lamp or extend out warning lamp work, alarm is carried out in luminescence.Meanwhile, master controller 4 exports control signal by serial ports, controls voice recorder 7 and plays warning recording.Warning recording in voice recorder 7 is the caution sound inserting typing in the TF card in its TF draw-in groove 8, and in TF card, the typing mode of caution sound is on computers by TF card reader, records and downloads audio files, then uses in TF card insertion TF draw-in groove 8.The Caution Against tone signal that voice recorder 7 exports by audio-frequency power amplifier 9 carries out power amplification, drives loudspeaker 10 to send warning recording.Thus alarm is carried out to the personnel entering hazardous location by warning lamp is luminous with warning recording broadcasting simultaneously.
Shown in Fig. 2; the present embodiment has selected BISS001 chip to process infrared induction signal; this chip adopts the numerical model analysis special IC of CMOS technology; there is independently high input impedance operational amplifier; built-in two-way amplitude discriminator has very strong antijamming capability; and its operating voltage range is+3-+5V, go back built-in reference power supply.Therefore, outside need connect some resistance capacitances, just can form complete signal processing circuit, when sensor receives infrared induction signal, 2nd pin of chip will export a upper level signal of jumping edge, both can work by Direct driver relay, also can access Single Chip Microcomputer (SCM) system as control signal.
Shown in Fig. 3, audio record circuit has selected WT5001 chip, and this chip is the MP3 speech chip of a OTP high tone quality, has 8-BIT CISC, supports MP3 decoding, the Peripheral Interface with abundant a: SPI; Can Direct driver 16 ohm of earphones; Band real-time clock and perpetual calendar clock functions of modules; The RS232 serial ports of standard controls; Extremely low power dissipation, standby current is about 80uA; Control to play response fast, be better than like product; Be suitable for the occasion needing to change voice or the time is longer, tonequality requirement is higher;
Chip reads the audio files on TF, after decoding, is exported the left and right sound track signals of sound according to external control by LHPOUT and RHPOUT.
Shown in Fig. 4, the VOICE voice signal exported by speech chip WT5001, can not Direct driver speaker operation, signal power is needed to amplify, design selects PAM8032 as power discharging device, this chip is a 2.5W single channel D genus audio power amplifier, can provide the performance of AB power-like amplifier with the efficiency of D class A amplifier A.Adopt D class formation, AX8302 can to provide the power of 2.5W up to the efficiency of 88%.Low EMI modulation system can be saved traditional D class A amplifier A and export low-pass filter, thus saves system cost and PCB space, is the ideal chose of portable product application.
Shown in Fig. 5, the ATMEGA16L that the present invention has selected atmel corp to produce, it has following features: the In-System Programmable Flash of 16K byte (has the ability read while write, i.e. RWW), 512 byte EEPROM, 1K byte SRAM, 32 general purpose I/O mouth lines, 32 general purpose working registers, for the JTAG interface of boundary scan, debugging and programming in supporting pieces, three timer/counters flexibly (T/C) with comparison pattern, sheet inside/outside interrupts, serial USART able to programme, there is the USB (universal serial bus) of initial conditions detecting device, 8 10, tunnels have the ADC of optional differential input stage programmable-gain, there is the programmable watchdog timer of sheet internal oscillator, a SPI serial port, and six battery saving modes that can be undertaken selecting by software,
Master controller receives the ACT rising edge signal exported by infrared signal sensor, after judging confirmation, communication is carried out by TXD, RXD serial ports and WT5001 speech chip, order speech chip reads TF card content, output sound signal, control power amplifier chips PAM8032 by ONOFF signal again and open output mode, driving loudspeaker plays sound, and meanwhile, is exported control built-in luminotron and extend out warning lamp work by LED signal.
Shown in Fig. 6, extend out warning light circuit, resistance R9, R10, E2, R7, Q3 form self-oscillation circuit, when mode switch is often opened, the control signal of about the 1Hz that oscillating circuit produces drives Q2 to amplify through E1 and R8, be supplied to Q1 through R5, R6 again, the on/off realizing luminous tube array controls, and produces the effect of warning lamp flicker; When mode switch is normally closed, triode Q2 no longer conducting, the base voltage of Q1 is greater than 0.7V all the time, and Q1 is conducting all the time, and luminous tube array is energized always, warning lamp Chang Liang.
Claims (7)
1. a hazardous location infrared ray warning system, it mainly comprises working power, infrared surveillance set and Intelligent acousto-optic warning device, it is characterized in that described infrared surveillance set comprises at least one pyroelectric infrared sensor being placed in hazardous location, this pyroelectric infrared sensor is connected with master controller by the infrared sensor signal processor be connected; Described Intelligent acousto-optic warning device comprises warning lamp, voice recorder, audio-frequency power amplifier and loudspeaker; Described master controller is connected with the voice recorder with TF draw-in groove with warning lamp, audio-frequency power amplifier respectively, and described primary controller respectively carries out playback respectively by the audio-frequency power amplifier be connected through loudspeaker with voice recorder.
2. hazardous location according to claim 1 infrared ray warning system, it is characterized in that described working power is the chargeable built-in lithium cell module of 12V/500mAH, this lithium battery module is configured with and external charger can be utilized to carry out charging charging inlet to lithium battery.
3. hazardous location according to claim 1 infrared ray warning system, is characterized in that the Fresnel Lenses described pyroelectric infrared sensor being configured with high-quality; The infrared sensor signal processor be connected with this pyroelectric infrared sensor selects BISS001 chip to process infrared induction signal; this BISS001 chip adopts the numerical model analysis special IC of CMOS technology; be built-in with two-way amplitude discriminator, and there is independently high input impedance operational amplifier.
4. the hazardous location infrared ray warning system according to claim 1 or 3, it is characterized in that the master controller that described infrared sensor signal processor is connected adopts the ATMEGA16L cake core of atmel corp's production for judging the trigger state that signal processor sends, drive pilot lamp or extend out warning lamp work, controlling voice recording and playback ic by serial ports simultaneously and play warning recording.
5. hazardous location according to claim 4 infrared ray warning system, it is characterized in that described warning lamp is built-in high brightness red LED lamp, when receiving the drive singal that master controller sends, luminescence realizes alarm; The voice recorder be connected with master controller selects WT5001 chip, and this chip reads the audio files on the outside TF card inserted in TF draw-in groove, after decoding, is exported the left and right sound track signals of sound according to external control by LHPOUT and RHPOUT.
6. hazardous location according to claim 5 infrared ray warning system, it is characterized in that the audio-frequency power amplifier that described master controller is connected selects PAM8032 as power discharging device, after the voice signal power amplification export voice recorder, export loudspeaker to; Described loudspeaker is the built-in speaker being carried out by the voice signal after audio-frequency power amplifier power amplification exporting.
7. the hazardous location infrared ray warning system according to claim 5 or 6, is characterized in that described master controller is provided with one and for subsequent usely extends out warning lamp interface, and connected by this warning lamp interface that extends out for subsequent use and controlled to extend out warning lamp.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410626666.8A CN104464182A (en) | 2014-11-10 | 2014-11-10 | Hazardous area infrared ray alarm system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410626666.8A CN104464182A (en) | 2014-11-10 | 2014-11-10 | Hazardous area infrared ray alarm system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN104464182A true CN104464182A (en) | 2015-03-25 |
Family
ID=52910159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410626666.8A Pending CN104464182A (en) | 2014-11-10 | 2014-11-10 | Hazardous area infrared ray alarm system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104464182A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104966378A (en) * | 2015-06-12 | 2015-10-07 | 国家电网公司 | LED sound-light alarm device |
CN105233979A (en) * | 2015-10-27 | 2016-01-13 | 灌阳县陈工选矿机械制造有限公司 | Mineral-separation and impurity-removal feed box with alarming function |
CN105261150A (en) * | 2015-11-09 | 2016-01-20 | 国网浙江三门县供电公司 | A danger alarm apparatus |
CN105741489A (en) * | 2016-05-05 | 2016-07-06 | 国家电网公司 | Infrared short-distance electric shock preventing alarm device |
CN106355804A (en) * | 2016-10-13 | 2017-01-25 | 国家电网公司 | Safety distance warning device of vehicle-mounted movable substation |
WO2017121110A1 (en) * | 2016-01-13 | 2017-07-20 | 吉林航盛电子有限公司 | Pedestrian sound warning device having active early-warning function for use in new-energy vehicle |
CN107945440A (en) * | 2017-11-30 | 2018-04-20 | 广西电网有限责任公司贺州供电局 | A kind of substation ground buried fiber optic cable external force damage prevention audible-visual annunciator |
CN111243207A (en) * | 2020-01-16 | 2020-06-05 | 汤姆森电气有限公司 | Intelligent alarm system and method for preventing object intrusion of electrical equipment |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN200947227Y (en) * | 2006-09-06 | 2007-09-12 | 武晓明 | Automatic voice caution device for caution area |
KR20090089741A (en) * | 2008-02-19 | 2009-08-24 | 주식회사 두성기술 | Automatic falling detection and alert system |
CN201635768U (en) * | 2010-01-06 | 2010-11-17 | 青岛天信电气有限公司 | Mine-used intrinsically safe voice alarm |
CN201780641U (en) * | 2010-08-23 | 2011-03-30 | 红塔烟草(集团)有限责任公司 | Portable intelligent voice alarm device |
CN201838109U (en) * | 2010-11-12 | 2011-05-18 | 黄江彬 | Power equipment monitoring device |
CN201876944U (en) * | 2010-11-17 | 2011-06-22 | 北京声迅电子有限公司 | Voice prompter system |
CN202662114U (en) * | 2012-04-27 | 2013-01-09 | 山西省电力公司大同供电分公司 | Acousto-optic alarm signboard |
CN203055068U (en) * | 2012-11-30 | 2013-07-10 | 西安晶捷电子技术有限公司 | Antitheft precaution device |
-
2014
- 2014-11-10 CN CN201410626666.8A patent/CN104464182A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN200947227Y (en) * | 2006-09-06 | 2007-09-12 | 武晓明 | Automatic voice caution device for caution area |
KR20090089741A (en) * | 2008-02-19 | 2009-08-24 | 주식회사 두성기술 | Automatic falling detection and alert system |
CN201635768U (en) * | 2010-01-06 | 2010-11-17 | 青岛天信电气有限公司 | Mine-used intrinsically safe voice alarm |
CN201780641U (en) * | 2010-08-23 | 2011-03-30 | 红塔烟草(集团)有限责任公司 | Portable intelligent voice alarm device |
CN201838109U (en) * | 2010-11-12 | 2011-05-18 | 黄江彬 | Power equipment monitoring device |
CN201876944U (en) * | 2010-11-17 | 2011-06-22 | 北京声迅电子有限公司 | Voice prompter system |
CN202662114U (en) * | 2012-04-27 | 2013-01-09 | 山西省电力公司大同供电分公司 | Acousto-optic alarm signboard |
CN203055068U (en) * | 2012-11-30 | 2013-07-10 | 西安晶捷电子技术有限公司 | Antitheft precaution device |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104966378A (en) * | 2015-06-12 | 2015-10-07 | 国家电网公司 | LED sound-light alarm device |
CN105233979A (en) * | 2015-10-27 | 2016-01-13 | 灌阳县陈工选矿机械制造有限公司 | Mineral-separation and impurity-removal feed box with alarming function |
CN105261150A (en) * | 2015-11-09 | 2016-01-20 | 国网浙江三门县供电公司 | A danger alarm apparatus |
WO2017121110A1 (en) * | 2016-01-13 | 2017-07-20 | 吉林航盛电子有限公司 | Pedestrian sound warning device having active early-warning function for use in new-energy vehicle |
CN105741489A (en) * | 2016-05-05 | 2016-07-06 | 国家电网公司 | Infrared short-distance electric shock preventing alarm device |
CN106355804A (en) * | 2016-10-13 | 2017-01-25 | 国家电网公司 | Safety distance warning device of vehicle-mounted movable substation |
CN107945440A (en) * | 2017-11-30 | 2018-04-20 | 广西电网有限责任公司贺州供电局 | A kind of substation ground buried fiber optic cable external force damage prevention audible-visual annunciator |
CN111243207A (en) * | 2020-01-16 | 2020-06-05 | 汤姆森电气有限公司 | Intelligent alarm system and method for preventing object intrusion of electrical equipment |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104464182A (en) | Hazardous area infrared ray alarm system | |
CN204288466U (en) | A kind of tool box | |
CN203933124U (en) | A kind of single interface portable power source, bluetooth keyboard and protective sleeve | |
CN203377676U (en) | Power supply automatic switching device and access control system | |
CN204140130U (en) | Colliery portable blower automated system | |
CN204515977U (en) | Hazardous location infrared ray warning system | |
CN206698356U (en) | A kind of mining portable behavior record instrument | |
CN200941106Y (en) | Intelligence controlled low voltage watt-hour meter | |
CN204203206U (en) | Cable tunnel harmful gas on-Line Monitor Device | |
CN205507613U (en) | Computer motherboard of double cell power supply | |
CN105654665B (en) | A kind of substation field safe and intelligent alarming device | |
CN204155405U (en) | Be convenient to the substation field safe and intelligent alarming device of unified management | |
CN102737212A (en) | Handheld checker of second-generation identity card and checking method of handheld checker | |
CN205375114U (en) | Device that long -range power monitoring of GSM SMS and sudden change of collection environment sound were reported to police | |
CN204481520U (en) | A kind of storage battery of built-in GSM/GPS module | |
CN210795419U (en) | Construction elevator monitor terminal | |
CN205081947U (en) | Horse race lamp circuit based on bluetooth speaker | |
CN205450223U (en) | System for on -line monitoring and management subsea equipment power electric quantity | |
CN204827535U (en) | Multi -functional explosion -proof LED display in pit | |
CN202197375U (en) | Multifunctional monitoring network measuring and controlling instrument | |
CN205955774U (en) | Safe type of mining essence intelligence audio alert system | |
CN207611101U (en) | A kind of novel external header box failure detector | |
CN215267777U (en) | High-voltage line loss analysis system | |
CN219696011U (en) | Intelligent tile inspection data monitoring display screen | |
CN216770677U (en) | Monitoring device and monitoring system of inspection well cover |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |