CN108364479A - The system of electronic police Intelligent supplemental lighting - Google Patents
The system of electronic police Intelligent supplemental lighting Download PDFInfo
- Publication number
- CN108364479A CN108364479A CN201810300555.6A CN201810300555A CN108364479A CN 108364479 A CN108364479 A CN 108364479A CN 201810300555 A CN201810300555 A CN 201810300555A CN 108364479 A CN108364479 A CN 108364479A
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- Prior art keywords
- light
- control unit
- light filling
- light source
- ambient
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
- G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/71—Circuitry for evaluating the brightness variation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of systems of electronic police Intelligent supplemental lighting, under ambient lighting light filling pattern, environment optical detecting unit acquisition ambient light real-time illuminance information judges whether ambient brightness meets the primary demand conveying signal of pedestrian's ambient lighting to control unit, if it is control unit control electric light source is not lighted, if otherwise control unit control electric light source lights up as pedestrian's offer ambient lighting light filling；Under Imaging for Monitoring light filling pattern, traffic signals detection unit acquisition process traffic lights cycle information is delivered to control unit, control unit control electric light source adjust output power adjustment brightness in green light, in the amber light period be high brightness, be low-light level in red light cycle.The system triggers darkening light filling signal by timely collection ambient light illumination information, vehicle, traffic lights cycle information carries out intelligent control to electric light source, reduces energy consumption and light pollution while assisting camera to shoot clear car plate and personnel's photo and taking into account pedestrian's ambient lighting.
Description
Technical field
The invention belongs to traffic technique Imaging for Monitoring light filling field, more particularly to a kind of electronic police Intelligent supplemental lighting is
System.
Background technology
Electronic police system refers to being mounted on the city intersection and section of signal control and in specific lane
Motor-driven vehicle going behavior carries out the uninterrupted automatic system detected and record.Its basic function include vehicle detection, image recording,
Number plate of vehicle identification and data processing remote transmission etc..System is detecting vehicle process or vehicle peccancy when driving,
It is capable of the feature and panoramic picture of accurate recording vehicle, automatic identification number plate of vehicle, and indicates information of vehicles in panoramic picture,
It cannot be influenced by the weather such as rain, snow, mist and ambient light and misdescription record occur, so floor light is extremely important.It uses at present
Electronic police light compensating apparatus work at night if state that high brightness is lighted always once entering, can not according to ambient light illumination, have
No vehicle adjusts the working condition of light compensating apparatus by electronic police and traffic lights mechanical periodicity, both wastes the energy,
It polluted environment again.
Invention content
The purpose of the present invention is to provide a kind of systems of electronic police Intelligent supplemental lighting, are believed in real time according to ambient light illumination
Breath, vehicle triggering darkening light filling signal and traffic lights cycle information carry out intelligence and adjust light filling, have both met camera shooting and have mended
The energy saving consumption again of light demand, reduces light pollution.
To achieve the goals above, the present invention takes following technical scheme：A kind of system of electronic police Intelligent supplemental lighting is
System includes control unit, environment optical detecting unit, electric light source, darkening light filling trigger element and traffic signals detection unit, environment
The real-time illuminance information of optical detecting unit acquisition ambient light judges that in the daytime/night status is delivered to control unit；Control unit exports
Signal controls electric light source and starts in the daytime/Night work：Under day mode, electric light source is not lighted；Under Night, darkening is mended
Light trigger element collection vehicle triggers darkening light filling signal, determines whether vehicle triggering darkening light filling signal and is delivered to control list
Member, control element output signal control electric light source starts the L mode of ambient lighting light filling when no vehicle triggers darkening light filling signal,
Start the B-mode of Imaging for Monitoring light filling when thering is vehicle to trigger darkening light filling signal；Under ambient lighting light filling pattern, environment light detection
The unit acquisition real-time illuminance information of ambient light judges whether ambient brightness meets the primary demand conveying signal of pedestrian's ambient lighting
To control unit, if it is control unit control electric light source is not lighted, if otherwise control unit control electric light source is lit up as
Pedestrian provides ambient lighting light filling；Under Imaging for Monitoring light filling pattern, traffic signals detection unit acquisition process traffic lights week
To control unit, control unit controls electric light source and adjusts output power adjustment brightness in green light, in the amber light period phase information conveyance
For high brightness, interior red light cycle is low-light level.
In above-mentioned technical proposal, control unit is controlled according to the real-time illuminance information of ambient light that environment optical detecting unit acquires
Electric light source works, and under day mode, ambient light illumination meets the shooting demand of camera, and clearly vehicle can be shot without light filling
Licence plate piece；Under Night, the real-time collection vehicle of darkening light filling trigger element triggers darkening light filling signal, and no vehicle triggers darkening
There is no vehicle not captured by camera when light filling signal, then start the L mode of ambient lighting light filling, there is vehicle to trigger darkening light filling
The B-mode of Shi Qidong Imaging for Monitoring light fillings；When there is vehicle to trigger darkening light filling signal, vehicle comes into electronic police monitoring
Range then starts Imaging for Monitoring light filling pattern darkening light filling cooperation camera and is ready to capture light filling, traffic signals detection unit
The traffic lights cycle information of timely collection is transferred to control unit, subsequent control unit output signal adjusts output
The brightness of power adjustment electric light source, it is constantly larger by electronic police vehicle flowrate in green light, amber light period internal cause vehicle, so electric
Light source is high brightness；No through traffic for vehicle in red light cycle, can be met the requirements so electric light source is low-light level.The system passes through
Timely collection ambient light illumination information, vehicle triggering darkening light filling signal, traffic lights cycle information to electric light source into
Row intelligent control is assisting camera to shoot the facial characteristics photo of clear car plate and driver and is taking into account pedestrian's ambient lighting
While reduce energy consumption and light pollution to the greatest extent.
Description of the drawings
Fig. 1 is present system functional block diagram；
Fig. 2 ambient lighting light filling mode control logic figures；
Fig. 3 Imaging for Monitoring light filling mode control logic figures.
Specific implementation mode
In conjunction with attached drawing 1~3, the present invention is made further instructions：
A kind of system of electronic police Intelligent supplemental lighting, system include control unit 10, environment optical detecting unit 20, electric light source
30, darkening light filling trigger element 40 and traffic signals detection unit 50, wherein：It is real-time that environment optical detecting unit 20 acquires ambient light
Illuminance information judges that in the daytime/night status is delivered to control unit 10；10 output signal of control unit controls electric light source 30 and starts
In the daytime/Night work：Under day mode, electric light source 30 is not lighted；Under Night, darkening light filling trigger element 40 acquires
Vehicle triggers darkening light filling signal, determines whether vehicle triggering darkening light filling signal and is delivered to control unit 10, no vehicle triggering
10 output signal of control unit control electric light source 30 starts the L mode of ambient lighting light filling when darkening light filling signal, has vehicle to touch
Start the B-mode of Imaging for Monitoring light filling when sending out darkening light filling signal；Under ambient lighting light filling pattern, environment optical detecting unit 20 is adopted
The collection real-time illuminance information of ambient light judges whether ambient brightness meets the primary demand conveying signal extremely control of pedestrian's ambient lighting
Unit 10, if it is control unit 10 controls electric light source 30 and does not light, if otherwise control unit 10 controls 30 points of electric light source
It is bright to provide ambient lighting light filling for pedestrian；Under Imaging for Monitoring light filling pattern, 50 acquisition process traffic of traffic signals detection unit letter
Signal lamp cycle information is delivered to control unit 10, and control unit 10 controls electric light source 30 and adjusts output power adjustment brightness green
It is high brightness in lamp, amber light period, is low-light level in red light cycle.
Control unit 10 controls 30 work of electric light source according to the real-time illuminance information of ambient light that environment optical detecting unit 20 acquires
Make, under day mode, ambient light illumination meets the shooting demand of camera 70, and clearly license plate can be shot without light filling
Piece；Under Night, 40 real-time collection vehicle of darkening light filling trigger element triggers darkening light filling signal, and no vehicle triggering darkening is mended
There is no vehicle not captured by camera 70 when optical signal, then start the L mode of ambient lighting light filling, there is vehicle to trigger darkening light filling
The B-mode of Shi Qidong Imaging for Monitoring light fillings；When there is vehicle to trigger darkening light filling signal, vehicle comes into electronic police monitoring
Range then starts Imaging for Monitoring light filling pattern darkening light filling cooperation camera 70 and is ready to capture light filling, and traffic signals detection is single
The traffic lights cycle information of timely collection is transferred to control unit 10,10 output signal of subsequent control unit by member 50
The brightness for adjusting output power adjustment electric light source 30, constantly passes through electronic police vehicle flowrate in green light, amber light period internal cause vehicle
It is larger, so electric light source 30 is high brightness；No through traffic for vehicle in red light cycle, can meet so electric light source 30 is low-light level
It is required that.The system triggers darkening light filling signal, traffic lights period by timely collection ambient light illumination information, vehicle
Information carries out intelligent control to electric light source 30, and clear car plate and the facial characteristics photo of driver are shot assisting camera 70
Reduce energy consumption and light pollution to the greatest extent with while taking into account pedestrian's ambient lighting.
System is additionally provided with signals of vehicles detection unit 60, signals of vehicles detection unit 60 detect vehicle reach capture position or
It triggers camera 70 when person drives against traffic regulations to capture, output while capturing of camera 70 captures synchronizing signal to control unit 10, control
Unit 10 processed controls electric light source 30 and is not lighted under day mode or capture synchronous light filling in a pulsed fashion for camera 70, at night
Between with the high brightness of strobe mode or be in a pulsed fashion that camera 70 captures synchronous light filling under pattern.Signals of vehicles detection unit
60 can be the video vehicle checker built in camera 70, can also be that radar or ground induction coil vehicle checker etc. outside camera 70 is used for
Collection vehicle position and the information such as violating the regulations, when vehicle, which reaches, to be captured position or drive against traffic regulations, output signal triggering camera 70 is grabbed
It claps, if the shooting of camera 70 is automobile tail car plate under day mode, ambient light illumination has met the shooting need of camera 70
It asks, clearly car plate photo can be shot without light filling, so electric light source 30 is not lighted；It is driven if camera 70 needs to shoot
The facial characteristics and car plate photo of personnel, light filling light have to penetrate through the windshield of automobile, then electric light source 30 must be with pulse
Mode light filling, the light filling in a pulsed fashion of electric light source 30, will not interfere driver, camera 60 is shot under day mode
To clearly driver and vehicle license plate photo；If the shooting of camera 70 is automobile tail car plate, electric light under Night
Synchronous light filling is captured in source 30 by camera 70 of the high brightness of strobe mode, if camera 70 needs the face for shooting driver special
Sign and car plate photo, electric light source 30 are that camera 70 captures synchronous light filling in a pulsed fashion.Under Night, if in red light cycle
When signals of vehicles detection unit 60 has detected vehicle crimping, has driven in the wrong direction, makes a dash across the red light, exceeding the speed limit, not driving against traffic regulations by guiding traveling etc.,
Output signal triggers camera 70 and captures, and electric light source 30 is then changed to high brightness from the low-light level of strobe mode or from strobe mode
Low-light level be converted into pulse mode assist camera 70 capture light filling, light filling terminate later electric light source 30 brightness then return to frequency
The low-light level of sudden strain of a muscle mode.Vehicle controls electric light source 30 by control unit after electronic police 10 and is transformed into ambient lighting light filling
L mode, until control unit 10 receives vehicle triggering darkening light filling signal again, system is transformed into Imaging for Monitoring light filling again
B-mode.
The environment optical detecting unit 20 is acquired the real-time brightness value EI of ambient light by built-in optical sensor 21 and is transmitted
To first processor 22, first processor 22 is by the real-time brightness value EI of the ambient light of reception and preset threshold value EI1 multilevel iudge days
Between/night status.EI1 is the ambient light illumination threshold value pre-entered, and current acquisition is accurately judged for first processor 22
The real-time illumination of ambient light, for state in the daytime, collection value be night status when being less than EI1 when collection value is more than or equal to EI1.
When the first processor 22 judges environment for night status, first processor 22 receives the real-time illumination of ambient light
Value EI is compared with preset threshold value EI2, and when collection value is more than or equal to EI2, control unit 10 sends out signal control electric light source 30 and do not open
Dynamic ambient lighting light filling, when collection value is less than EI2, control unit 10 is touched according to the vehicle that darkening light filling trigger element 40 acquires
It sends out darkening light filling signal control electric light source 30 and starts ambient lighting light filling, when control unit 10 receives darkening light filling trigger element
40 collect vehicle triggering darkening light filling signal when, control unit 10 control electric light source 30 from the L mode of ambient lighting light filling turn
Change to the B-mode of Imaging for Monitoring light filling.EI2 is the ambient light illumination threshold value pre-entered, and it is that artificial adjustment is set that EI2, which is less than EI1,
It sets, accurately judges that can the real-time illumination of ambient light currently acquired meet the base of pedestrian's ambient lighting for first processor 22
This demand is the higher primary demand that disclosure satisfy that pedestrian's ambient lighting of ambient brightness when collection value is more than or equal to EI2, does not need
Ambient lighting light filling, brightness of illumination L is 0 at this time；For ambient brightness, relatively low it is impossible to meet pedestrian's environment when collection value is less than EI2
The primary demand of illumination then starts ambient lighting light filling, and brightness of illumination L is L1 at this time, when starting ambient lighting light filling, electric light
Source 30 is equivalent to common illumination street lamp, and brightness of illumination L1 is adjustable, is subject to the primary demand for meeting pedestrian's ambient lighting, in detail
See attached drawing 2.
The darkening light filling trigger element 40 is equipped with detector 41, and detector 41 acquires under Night
Vehicle triggering darkening light filling signal TS is transferred to second processor 42, and second processor 42 receives information and preset threshold value TS1 ratios
Compared with judgement, and judging result is exported to control unit 10, control unit 10 controls the Working mould of electric light source 30 according to judging result
Formula, control unit 10 are also preset with the light filling delay time T as TS=TS1.
Detector 41 is using radar or vehicle checker or sensor, the collection vehicle by the way of remote detection, induction
Information triggers darkening light filling signal, and TS1 is that darkening light filling triggers preset threshold value, as TS=TS1, has vehicle triggering darkening to mend
Light, electric light source 30 is transformed into the B-mode darkening light filling of Imaging for Monitoring light filling by the L mode of ambient lighting light filling, due to each road
The time setting in lipstick green light period may be different, speed and state of each vehicle when approaching and passing through electronic police
Also can be multifarious, some vehicles possible Ultra-Low Speed traveling when close to electronic police even stops traveling, in order to avoid electric light
Source 30 is lighted in vain for a long time, and control unit 10 is preset with Imaging for Monitoring light filling and lights working time parameter T, as TS=TS1
Beginning T timing.The brightness of electric light source 30 continues according to traffic lights mechanical periodicity light filling in T time, after T time
Electric light source 30 is automatically switched to the L mode of ambient lighting light filling, waits for Imaging for Monitoring light filling operation next time, refers to attached
Fig. 3.Adjustment lighting time T can control the time span that electric light source 30 is lighted and extinguished in Imaging for Monitoring light filling, be arranged
The many factors such as traffic intersection traffic lights period length, vehicle flowrate, road conditions, environmental quality should be fully taken into account when parameter T, both
It reserves enough lighting times to take pictures light filling to camera 70, realizes save the purpose that energy consumption reduces light pollution again.
The traffic signals detection unit 50 is equipped with traffic signals collector 51 and acquires traffic light controller output
Signal lamp cycle information or camera 70 export the traffic lights cycle information identified by video detection mode be transferred to third
Processor 52, third processor 52 receive information and carry out dissection process, and control unit 10 receives the control of handling result output order
Electric light source 30 adjusts brightness.Traffic signals collector 51 is connected with the controller of traffic lights, or the signal with camera 70
Output interface is connected, and accurately acquires traffic lights cycle information, and third processor 52 receives at signal lamp cycle information and parsing
Reason, outputs signal to control unit 10, and control unit 10 controls electric light source 30 and adjusts electric light source 30 according to signal lamp cycle information
Brightness.
The control unit 10 is additionally provided with network and communication interface and establishes communication connection with control centre, supports Web
Setting, operating function.Control unit 10 both can directly be connect with Ethernet by network interface, can also by camera 70 with
Ethernet connects, control centre can acquisition control unit 10 in real time working condition, while realizing computer long-distance control, it is complete
At Intelligent supplemental lighting system software upgrading, parameter setting, data information upload, operating status control, such as adjust electric light source 30
It brightness and lights and the functions such as fall time.
Claims (7)
1. a kind of system of electronic police Intelligent supplemental lighting, it is characterised in that：System includes control unit (10), environment light detection list
First (20), electric light source (30), darkening light filling trigger element (40) and traffic signals detection unit (50), wherein：
The real-time illuminance information of environment optical detecting unit (20) acquisition ambient light judges that in the daytime/night status is delivered to control unit
(10)；
Control unit (10) output signal controls electric light source (30) and starts in the daytime/Night work：Under day mode, electric light source
(30) it does not light；Under Night, darkening light filling trigger element (40) collection vehicle triggers darkening light filling signal, determines whether vehicle
Triggering darkening light filling signal is delivered to control unit (10), and control unit (10) exports when no vehicle triggering darkening light filling signal
Signal control electric light source (30) start ambient lighting light filling L mode, have vehicle trigger darkening light filling signal when start monitoring at
As the B-mode of light filling；
Under ambient lighting light filling pattern, environment optical detecting unit (20) the acquisition real-time illuminance information of ambient light judges that ambient brightness is
The no primary demand for meeting pedestrian's ambient lighting conveys signal to control unit (10), and if it is control unit (10) control is electric
Light source (30) is not lighted, if otherwise control unit (10) control electric light source (30) lights up as pedestrian's offer ambient lighting light filling；
Under Imaging for Monitoring light filling pattern, traffic signals detection unit (50) acquisition process traffic lights cycle information is delivered to control
Unit (10) processed, control unit (10) control electric light source (30) adjust output power adjustment brightness and are in the period in green light, amber light
High brightness, interior red light cycle is low-light level.
2. the system of electronic police Intelligent supplemental lighting according to claim 1, it is characterised in that：System is additionally provided with signals of vehicles
Detection unit (60), signals of vehicles detection unit (60) detection vehicle, which reaches, to be captured position or triggers camera when driving against traffic regulations
(70) it captures, camera (70) output while capturing captures synchronizing signal to control unit (10), control unit (10) control
Electric light source (30) is not lighted under day mode or is that camera (70) captures synchronous light filling in a pulsed fashion, under Night
Synchronous light filling is captured with the high brightness of strobe mode or in a pulsed fashion for camera (70).
3. the system of electronic police Intelligent supplemental lighting according to claim 1, it is characterised in that：The environment light detection list
First (20) are by the built-in real-time brightness value EI of optical sensor (21) acquisition ambient light and are transferred to first processor (22), at first
Manage device (22) by the real-time brightness value EI of the ambient light of reception and preset threshold value EI1 multilevel iudges in the daytime/night status.
4. the system of electronic police Intelligent supplemental lighting according to claim 3, it is characterised in that：The first processor
(22) when judging environment for night status, first processor (22) receives the real-time brightness value EI of ambient light and preset threshold value EI2 ratios
Compared with, when collection value be more than or equal to EI2 when control unit (10) send out signal control electric light source (30) do not start ambient lighting light filling,
When collection value is less than EI2, control unit (10) controls electric light source (30) startup ambient lighting light filling, when control unit (10) connects
Receive darkening light filling trigger element (40) collect vehicle triggering darkening light filling signal when, control unit (10) control electric light source
(30) B-mode of Imaging for Monitoring light filling is transformed into from the L mode of ambient lighting light filling.
5. the system of electronic police Intelligent supplemental lighting according to claim 4, it is characterised in that：The darkening light filling triggering
Unit (40) is equipped with detector (41), and detector (41) collection vehicle triggers darkening light filling signal under Night
TS is transferred to second processor (42), and second processor (42) receives information and preset threshold value TS1 multilevel iudges, and exports judgement
As a result to control unit (10), control unit (10) controls the operating mode of electric light source (30), control unit according to judging result
(10) also it is preset with the light filling delay time T as TS=TS1.
6. the system of electronic police Intelligent supplemental lighting according to claim 1, it is characterised in that：The traffic signals detection
Unit (50) is equipped with the signal lamp cycle information or phase of traffic signals collector (51) acquisition traffic light controller output
The traffic lights cycle information of machine (70) output identified by video detection mode is transferred to third processor (52), third processor
(52) it receives information and carries out dissection process, it is bright that control unit (10) receives handling result output order control electric light source (30) adjustment
Degree.
7. the system of electronic police Intelligent supplemental lighting according to claim 1, it is characterised in that：The control unit (10)
It is additionally provided with network and communication interface and establishes communication connection with control centre, support Web settings, operating function.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017102420580 | 2017-04-13 | ||
| CN201710242058.0A CN106971553A (en) | 2017-04-13 | 2017-04-13 | The system of electronic police Intelligent supplemental lighting |
Publications (2)
| Publication Number | Publication Date |
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| CN108364479A true CN108364479A (en) | 2018-08-03 |
| CN108364479B CN108364479B (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710242058.0A Pending CN106971553A (en) | 2017-04-13 | 2017-04-13 | The system of electronic police Intelligent supplemental lighting |
| CN201810300555.6A Expired - Fee Related CN108364479B (en) | 2017-04-13 | 2018-04-04 | System for electronic police intelligence light filling |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710242058.0A Pending CN106971553A (en) | 2017-04-13 | 2017-04-13 | The system of electronic police Intelligent supplemental lighting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110167232A (en) * | 2019-06-06 | 2019-08-23 | 四川华晖油气技术服务有限公司 | A kind of lighting control system and method |
| CN111653101A (en) * | 2020-05-22 | 2020-09-11 | 浙江大华技术股份有限公司 | Vehicle snapshot method and vehicle snapshot system |
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| CN113691736A (en) * | 2021-06-29 | 2021-11-23 | 展讯通信（深圳）有限公司 | Light supplement control method, light supplement control system, terminal and light supplement lamp |
| CN114049776A (en) * | 2021-12-15 | 2022-02-15 | 航天信息股份有限公司 | Vehicle license plate snapshot light filling system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106971553A (en) | 2017-07-21 |
| CN108364479B (en) | 2021-03-05 |
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