CN107804224A - Alarm device for police car roof - Google Patents
Alarm device for police car roof Download PDFInfo
- Publication number
- CN107804224A CN107804224A CN201711316998.6A CN201711316998A CN107804224A CN 107804224 A CN107804224 A CN 107804224A CN 201711316998 A CN201711316998 A CN 201711316998A CN 107804224 A CN107804224 A CN 107804224A
- Authority
- CN
- China
- Prior art keywords
- roof
- shell
- stepper motor
- police car
- supporting plate
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000002604 ultrasonography Methods 0.000 claims abstract description 13
- 238000010248 power generation Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
- B60Q1/52—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating emergencies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Power Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a kind of alarm device for police car roof, including supporting plate, bearing block, rotary shaft, stepper motor, sound directional transmissions mechanism, strong light searchlight and display screen, sound directional transmissions mechanism includes signal processing module, power amplifier, ultrasound transducer array plate and shell；Supporting plate is fixed on roof by pillar, and stepper motor and bearing block are each attached on roof, and one end of rotary shaft is located in bearing block, and the other end is fixedly connected on the bottom of shell after passing through supporting plate；Worm gear is provided with rotary shaft, worm screw is fixedly connected with the piston rod of stepper motor；Strong light searchlight is fixed on the top of shell, and display screen is fixed on the front end of roof.The present invention is by the way that the warning of light warning harmony tone lateralization is effectively incorporated on police car so that police execution personnel can be oriented warning during execution task to any direction, so as to reach the purpose for improving alarming effect.
Description
Technical field
The present invention relates to automotive field, more particularly to a kind of alarm device for police car roof.
Background technology
Police car (Police car), refers to public security organ, state security organization, prison, reeducation through labour authority and people
Civil law institute, people's procuratorate are used for the motor vehicles for performing urgent post.
Warning lamp and siren are usually mounted with police car, such as the existing skill that Chinese patent notification number is CN201923011U
Art disclosed a kind of acousto-optic warning lamp for electric police car on 10th in August in 2011, it include connect electric police vehicle frame lamp stand and
Warning lamp, lamp stand be arranged at by interior bar in outer bar and interior bar in outer bar oscilaltion and by lock nut locking form, it is described
Interior bar connects siren through base, and the multiple sound mouths for punctuating configuration, siren are uniformly provided with the shell of siren bottom
Loudspeaker is provided with shell and siren power amplifier, loudspeaker are fixed on base, the pronunciation mouth of loudspeaker towards sound mouth,
Siren power amplifier is fixed on a speaker；The warning lamp includes lampshade, LED stroboscopics power amplifier and multigroup LED bulb
Group, LED stroboscopics power amplifier are fixed on the inner support in siren shell through screw, are uniformly set on LED stroboscopic power amplifiers
Multigroup LED bulb group is put, lampshade is through screw-threaded coupling in siren cover top portion.Wherein, police car is often in public places or somewhere
Used when generation public security situation, order out-of-control condition, burst emergency, specially need law enfrocement official to drive to rush for thing in time
Therefore point occurs, during rushing for, in order to cause crowd to pay attention to that warning lamp and siren need to be opened, also need to use loudspeaker if necessary
Carry out the deterrence crowd that propagandas directed to communicate.But the prior art using the police car as representative, also there is following two in actual use
Problem：First be daytime the alarming effect of warning lamp alarm it is weaker, fright power it is not strong；Second is that conventional horn is propagandaed directed to communicate sound transmission point
Dissipate, sound wave easily weakens and ineffective.Therefore, there is an urgent need to be improved traditional police car, allow it to meet various
Law enforcement demand under complex environment.
The content of the invention
It is an object of the invention to overcome the above-mentioned problems in the prior art, there is provided a kind of police for police car roof
Reporting device, the present invention is by the way that the warning of light warning harmony tone lateralization is effectively incorporated on police car so that police execution personnel
Warning can be oriented to any direction during execution task, so as to reach the purpose for improving alarming effect.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of alarm device for police car roof, it is characterised in that：Including supporting plate, bearing block, rotary shaft, stepper motor,
Sound directional transmissions mechanism, strong light searchlight and display screen, the sound directional transmissions mechanism include signal processing module, power
Amplifier, ultrasound transducer array plate and shell, signal processing module pass through power amplifier and ultrasound transducer array
Plate is connected, and signal processing module, power amplifier and ultrasound transducer array plate are each attached in shell；The supporting plate is led to
Cross pillar to be fixed on roof, stepper motor and bearing block are each attached on roof, and stepper motor and bearing block are respectively positioned on branch
Below fagging, one end of rotary shaft be located in bearing block, and the other end is through the bottom that shell is fixedly connected on after supporting plate；Rotate
Worm gear is provided with axle, worm screw is fixedly connected with the piston rod of stepper motor, stepper motor passes through worm and wormwheel and rotary shaft
Sound directional transmissions mechanism is driven to rotate；Strong light searchlight is fixed on the top of shell, and display screen is fixed on the front end of roof.
Solar generating mechanism is additionally arranged on described roof, solar generating mechanism includes solar power generation film and electricity
Pond, battery are fixed on the lower section of supporting plate, and solar power generation film is fixed on the top of supporting plate, solar power generation film and battery
Input connects, and the output end of battery connects with sound directional transmissions mechanism, stepper motor, strong light searchlight and display screen respectively
Connect.
The upper end level of the display screen is between solar power generation film and shell.
The through hole being adapted with rotary shaft is offered in the supporting plate, bearing is provided with through hole.
The rotary shaft is located at the middle part of supporting plate.
The shell is hollow columnar structures, and the both ends of shell are fixedly installed filter screen respectively.
Be provided with described police car audio input device and be respectively used to control stepper motor, sound directional transmissions mechanism,
The switch of strong light searchlight, display screen, audio input device are connected with signal processing module.
Using the advantage of the invention is that：
1st, sound directional transmissions mechanism is arranged on roof by the present invention, and sound directional transmissions mechanism is passed through rotary shaft and snail
The structure that worm and gear is connected with stepper motor so that police execution personnel can neatly adjust sound directional transmissions in police car
The transmission of angle of mechanism.Meanwhile strong light searchlight is fixed on to the structure on shell, also cause the direction of illumination of intense light irradiation shot-light
Transmission direction between sound is consistent, can either effectively warn target, and and can enough avoids disturbing residents.And display screen is arranged on roof
The structure of front end, then know there occurs emergency with making people's quicklook, so as to be given way for police car.With prior art phase
Than the present invention is by the way that the warning of light warning harmony tone lateralization is effectively incorporated on police car so that police execution personnel are holding
Warning can be oriented during row task to any direction, alarming effect greatly improved.In addition, the present invention is also special
Management suitable for social event is dredged, traffic dispersion, publicity education, and disaster command scheduling is propagated with information, frontier defense report
It is alert, propagandaed directed to communicate to enemy etc..
2nd, for the present invention by the solar generating mechanism being arranged on roof, it is sound that can convert the solar into electric energy
Directional transmissions mechanism, stepper motor, strong light searchlight and display screen power supply, not only improve the saving energy, have again more environmentally-friendly
The advantages of.
3rd, the upper end level of display screen is arranged between solar power generation film and shell by the present invention, not only improves reduction police
Influence of the caused air-flow to solar power generation film during car traveling, and can enough prevent rainwater from entering between supporting plate and roof
Stepper motor etc. is impacted.
4th, the present invention can be positioned, and can, which improves, rotates flexibility by the through hole and bearing in supporting plate to rotary shaft.
5th, rotary shaft is arranged on the middle part of supporting plate by the present invention so that sound directional transmissions mechanism and strong light searchlight
Positioned at the middle part of roof, be advantageous to improve the alarming effect of sound directional transmissions mechanism and strong light searchlight in any direction.
6th, shell is set to hollow columnar structures by the present invention, is advantageous to reduce windage；It is and solid respectively at the both ends of shell
Filter screen is set surely, then can prevent sound directional transmissions mechanism from being hit and damaged by slungshot etc..
7th, the present invention is provided with audio input device in police car and is respectively used to control stepper motor, sound directional transmissions machine
Structure, strong light searchlight, the switch of display screen, this causes police execution personnel flexibly to control each equipment to work in police car,
Using more convenient.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is mplifying structure schematic diagram at the I in Fig. 1.
In figure mark for：1st, police car, 2, supporting plate, 3, bearing block, 4, rotary shaft, 5, stepper motor, 6, strong light searchlight,
7th, display screen, 8, ultrasound transducer array plate, 9, shell, 10, worm gear, 11, worm screw, 12, solar power generation film, 13, battery,
14th, audio input device.
Embodiment
Embodiment 1
A kind of alarm device for police car roof, including supporting plate 2, bearing block 3, rotary shaft 4, stepper motor 5, sound orientation
Transmission mechanism, strong light searchlight 6 and display screen 7, the sound directional transmissions mechanism include signal processing module, power amplification
Device, ultrasound transducer array plate 8 and shell 9, signal processing module pass through power amplifier and ultrasound transducer array plate 8
Connection, signal processing module, power amplifier and ultrasound transducer array plate 8 are each attached in shell 9；The supporting plate 2
It is fixed on by pillar on roof, stepper motor 5 and bearing block 3 are each attached on roof, and stepper motor 5 and bearing block 3 are equal
Positioned at the lower section of supporting plate 2, one end of rotary shaft 4 is located in bearing block 3, and the other end is fixedly connected on shell 9 after passing through supporting plate 2
Bottom；Worm gear 10 is provided with rotary shaft 4, worm screw 11 is fixedly connected with the piston rod of stepper motor 5, stepper motor 5 is logical
Cross the worm gear 10 of worm screw 11 and rotary shaft 4 drives sound directional transmissions mechanism to rotate；Strong light searchlight 6 is fixed on the top of shell 9,
Display screen 7 is fixed on the front end of roof.
In the present embodiment, the middle part of the supporting plate 2 offers the through hole being adapted with rotary shaft 4, is provided with through hole
Bearing, one end of rotary shaft 4 are located in bearing block 3, and the other end is fixedly connected on the bottom of shell 9 after passing through the through hole.
In the present embodiment, the shell 9 is hollow columnar structures, and the side of snapping fixation is respectively adopted in the both ends of shell 9
Formula is provided with filter screen, so as to reach the purpose for preventing the shocks such as slungshot.
In the present embodiment, audio input device 14 is provided with described police car 1 and is respectively used to control stepper motor 5, sound
Tone lateralization transmission mechanism, strong light searchlight 6, the switch of display screen 7.Wherein, audio input device 14 is connected with signal processing module,
The audio signal that police execution personnel are inputted in police car 1 by audio input device 14 is exported after being handled by signal processing module and adjusted
To power amplifier, power amplifier is used to modulating wave is amplified and exported to acoustic transducer array plate, sound wave transducing ripple processed
After device array board receives the modulating wave of amplification, exports audio signal is oriented.
The implementation principle of the present embodiment is：, can be in advance in car when police execution personnel need to drive to rush for accident generation point
The direction that point occurs for accident is rushed in interior determination, it is determined that side goes backward through stepper motor 5 and the worm screw 11 of worm gear 10 coordinates regulation to rotate
Axle 4, the transmission direction of sound directional transmissions mechanism and the direction of illumination alignment of strong light searchlight 6 is set to rush for accident and point occurs, so
Strong light searchlight 6, the harmony tone lateralization transmission mechanism of display screen 7 is controlled to send warning to an accident generation point orientation by switching again afterwards
, it is effectively improved alarming effect.
Embodiment 2
A kind of alarm device for police car roof, including supporting plate 2, bearing block 3, rotary shaft 4, stepper motor 5, sound orientation
Transmission mechanism, strong light searchlight 6 and display screen 7, the sound directional transmissions mechanism include signal processing module, power amplification
Device, ultrasound transducer array plate 8 and shell 9, signal processing module pass through power amplifier and ultrasound transducer array plate 8
Connection, signal processing module, power amplifier and ultrasound transducer array plate 8 are each attached in shell 9；The supporting plate 2
It is fixed on by pillar on roof, stepper motor 5 and bearing block 3 are each attached on roof, and stepper motor 5 and bearing block 3 are equal
Positioned at the lower section of supporting plate 2, one end of rotary shaft 4 is located in bearing block 3, and the other end is fixedly connected on shell 9 after passing through supporting plate 2
Bottom；Worm gear 10 is provided with rotary shaft 4, worm screw 11 is fixedly connected with the piston rod of stepper motor 5, stepper motor 5 is logical
Cross the worm gear 10 of worm screw 11 and rotary shaft 4 drives sound directional transmissions mechanism to rotate；Strong light searchlight 6 is fixed on the top of shell 9,
Display screen 7 is fixed on the front end of roof.
In the present embodiment, solar generating mechanism is additionally arranged on described roof, solar generating mechanism includes the sun
Can be generated electricity film 12 and battery 13, and battery 13 can be bolted on the roof of the lower section of supporting plate 2, and solar power generation film 12 can
The top of supporting plate 2 is fixed on by bonding or other means.Wherein, the input of solar power generation film 12 and battery 13 connects
Connect, for converting the solar into electrical energy for storage in battery 13, the output end of battery 13 respectively with sound directional transmissions machine
Structure, stepper motor 5, strong light searchlight 6 and display screen 7 connect, for for each power supply for electrical equipment on roof.
Further, the upper end level of the display screen 7 is between solar power generation film 12 and shell 9, i.e. display screen 7
Upper surface where horizontal plane between solar power generation film 12 and shell 9.
Claims (7)
- A kind of 1. alarm device for police car roof, it is characterised in that：Including supporting plate（2）, bearing block（3）, rotary shaft （4）, stepper motor（5）, sound directional transmissions mechanism, strong light searchlight（6）And display screen（7）, the sound directional transmissions machine Structure includes signal processing module, power amplifier, ultrasound transducer array plate（8）And shell（9）, signal processing module passes through Power amplifier and ultrasound transducer array plate（8）Connection, signal processing module, power amplifier and supersonic transducer array Strake（8）It is each attached to shell（9）It is interior；The supporting plate（2）It is fixed on by pillar on roof, stepper motor（5）And bearing Seat（3）It is each attached on roof, and stepper motor（5）And bearing block（3）It is respectively positioned on supporting plate（2）Lower section, rotary shaft（4）One End is located at bearing block（3）Interior, the other end passes through supporting plate（2）After be fixedly connected on shell（9）Bottom；Rotary shaft（4）On set It is equipped with worm gear（10）, stepper motor（5）Piston rod on be fixedly connected with worm screw（11）, stepper motor（5）Pass through worm screw（11） Worm gear（10）And rotary shaft（4）Sound directional transmissions mechanism is driven to rotate；Strong light searchlight（6）It is fixed on shell（9）Top, Display screen（7）It is fixed on the front end of roof.
- 2. it is used for the alarm device of police car roof as claimed in claim 1, it is characterised in that：It is additionally arranged on described roof Solar generating mechanism, solar generating mechanism include solar power generation film（12）And battery（13）, battery（13）It is fixed on branch Fagging（2）Lower section, solar power generation film（12）It is fixed on supporting plate（2）Top, solar power generation film（12）With battery （13）Input connection, battery（13）Output end respectively with sound directional transmissions mechanism, stepper motor（5）, strong light searchlighting Lamp（6）And display screen（7）Connection.
- 3. it is used for the alarm device of police car roof as claimed in claim 2, it is characterised in that：The display screen（7）Upper end Highly it is located at solar power generation film（12）With shell（9）Between.
- 4. it is used for the alarm device of police car roof as claimed in claim 1, it is characterised in that：The supporting plate（2）On open up Have and rotary shaft（4）The through hole being adapted, bearing is provided with through hole.
- 5. it is used for the alarm device of police car roof as claimed in claim 1, it is characterised in that：The rotary shaft（4）Positioned at branch Fagging（2）Middle part.
- 6. it is used for the alarm device of police car roof as claimed in claim 1, it is characterised in that：The shell（9）For hollow circle Column structure, shell（9）Both ends be fixedly installed filter screen respectively.
- 7. it is used for the alarm device of police car roof as claimed in claim 1, it is characterised in that：Described police car（1）Interior setting There is audio input device（14）Be respectively used to control stepper motor（5）, sound directional transmissions mechanism, strong light searchlight（6）, display Screen（7）Switch, audio input device（14）It is connected with signal processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316998.6A CN107804224A (en) | 2017-12-12 | 2017-12-12 | Alarm device for police car roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316998.6A CN107804224A (en) | 2017-12-12 | 2017-12-12 | Alarm device for police car roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107804224A true CN107804224A (en) | 2018-03-16 |
Family
ID=61579876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711316998.6A Pending CN107804224A (en) | 2017-12-12 | 2017-12-12 | Alarm device for police car roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107804224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910616A (en) * | 2019-12-06 | 2020-03-24 | 深圳北斗国芯科技有限公司 | High-risk early warning management system based on Beidou |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020061313A (en) * | 2001-01-16 | 2002-07-24 | 영일특장 주식회사 | Searchlight for vehicle |
| CN202879342U (en) * | 2012-05-29 | 2013-04-17 | 绵阳声赛耳科技有限公司 | Anti-riot riot dispelling police car |
| CN203864537U (en) * | 2014-05-23 | 2014-10-08 | 浙江华安安全设备有限公司 | Vehicle-mounted integrated alarm lamp |
| CN106973345A (en) * | 2017-05-22 | 2017-07-21 | 电子科技大学 | A kind of police car Special flexible multifunctional acoustic wave defence equipment and control method |
| CN207565452U (en) * | 2017-12-12 | 2018-07-03 | 成都电科海立科技有限公司 | A kind of alarm device for police car roof |
-
2017
- 2017-12-12 CN CN201711316998.6A patent/CN107804224A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020061313A (en) * | 2001-01-16 | 2002-07-24 | 영일특장 주식회사 | Searchlight for vehicle |
| CN202879342U (en) * | 2012-05-29 | 2013-04-17 | 绵阳声赛耳科技有限公司 | Anti-riot riot dispelling police car |
| CN203864537U (en) * | 2014-05-23 | 2014-10-08 | 浙江华安安全设备有限公司 | Vehicle-mounted integrated alarm lamp |
| CN106973345A (en) * | 2017-05-22 | 2017-07-21 | 电子科技大学 | A kind of police car Special flexible multifunctional acoustic wave defence equipment and control method |
| CN207565452U (en) * | 2017-12-12 | 2018-07-03 | 成都电科海立科技有限公司 | A kind of alarm device for police car roof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910616A (en) * | 2019-12-06 | 2020-03-24 | 深圳北斗国芯科技有限公司 | High-risk early warning management system based on Beidou |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180316 |