CN103108117A - System and method for achieving synchronous fill-in light among intelligent video cameras in electronic police system - Google Patents
System and method for achieving synchronous fill-in light among intelligent video cameras in electronic police system Download PDFInfo
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- CN103108117A CN103108117A CN2011103620479A CN201110362047A CN103108117A CN 103108117 A CN103108117 A CN 103108117A CN 2011103620479 A CN2011103620479 A CN 2011103620479A CN 201110362047 A CN201110362047 A CN 201110362047A CN 103108117 A CN103108117 A CN 103108117A
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Abstract
The invention relates to a system for achieving synchronous fill-in light among intelligent video cameras in an electronic police system. The system for achieving the synchronous fill-in light among the intelligent video cameras in the electronic police system comprises a panoramic video camera and a plurality of license-plate video cameras, wherein each license-plate video camera is respectively provided with a corresponding fill-in light device and a corresponding comprehensive control module, the panoramic video camera is connected with a panoramic comprehensive control module, each comprehensive control module and the panoramic comprehensive control module are connected with each other through buses, and each comprehensive control module is respectively connected with a corresponding license-plate video camera and the corresponding fill-in light device. The invention further relates to a method for achieving the synchronous fill-in light among the intelligent video cameras in the electronic police system. The system and the method for achieving the synchronous fill-in light among the intelligent video cameras in the electronic police system can effectively reduce fill-in light expenditure of the panoramic video camera, is in no need of extra fill-in light switching system particularly under the condition of a plurality of lanes, and is simple and practical in structure, low in cost, stable and reliable in working performance, and wide in application range.
Description
Technical field
The present invention relates to the electronic police field, particularly monitoring camera-shooting technical field in electronic police system, specifically refer to realize in a kind of electronic police system the synchronous system and method for light filling between intelligent camera.
Background technology
In modern society, continuous increase along with automobile quantity in the city, road management also needs to continually strengthen, and electronic police system is as a kind of high-tech monitoring means, become the indispensable important tool of modern road safety management, wherein most important is exactly intelligent camera system, comprising panoramic camera and number plate video camera.
Analog video camera in the past, the mode of the centralized control of employing, analog video camera itself has been exported video synchronization signal simultaneously.Existing high-definition intelligent video camera has adopted the mode of distributed control, and does not have synchronizing signal between video camera.Therefore can not simple realization between video camera synchronous, the problem of bringing be that each video camera will be joined independently light-supplementing system outward, and a kind of like this set-up mode has brought the consumption of cost.
Especially, for the application model that panorama is arranged, in the time of will realizing between panoramic camera and number plate video camera that a number plate picture is joined a Zhang Quanjing picture, just need to join independently light-supplementing system for panoramic camera.More crucial is, in the situation that the track is more, single panoramic camera light-supplementing system may have little time light filling.Therefore need the outer light filling switched system of quota, in order to be effective.
Due between intelligent camera can't be synchronous, in the situation that a plurality of track, also needing has extra light filling switched system.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of light filling expense that can effectively solve stationary problem between intelligent camera, reduce panoramic camera, simple and practical, cost is lower, stable and reliable working performance, the scope of application realize the synchronous system and method for light filling between intelligent camera in electronic police system comparatively widely.
In order to realize above-mentioned purpose, realize in electronic police system of the present invention that the synchronous system and method for light filling between intelligent camera is as follows:
Realize between intelligent camera light filling synchronous system in this electronic police system, its main feature is, described system comprises panoramic camera and several number plate video cameras, each number plate video camera is provided with corresponding light compensating apparatus and Comprehensive Control module, and described panoramic camera is connected with panorama Comprehensive Control module, described each Comprehensive Control module and panorama Comprehensive Control module all interconnect by bus, and described each Comprehensive Control module all is connected with light compensating apparatus with each self-corresponding number plate video camera respectively.
Realize in this electronic police system that the Comprehensive Control module in light filling between intelligent camera synchronous system comprises central control unit, shooting driver element and light filling driver element, described central control unit is connected with described number plate video camera by described shooting driver element, and this central control unit is connected with described light compensating apparatus by described light filling driver element.
Realize in this electronic police system that the panorama Comprehensive Control module in light filling between intelligent camera synchronous system comprises central control unit, panoramic shooting driver element, described central control unit is connected with described panoramic camera by described panoramic shooting driver element.
Realize in this electronic police system that the light compensating apparatus in light filling between intelligent camera synchronous system is stroboscopic lamp.
Realize in this electronic police system that the bus in light filling between intelligent camera synchronous system is fieldbus.
Realize in this electronic police system that each Comprehensive Control module in light filling between intelligent camera synchronous system is connected by the self-corresponding number plate video camera of universal serial bus and each respectively.
Should realize in electronic police system the synchronous method of light filling between intelligent camera based on above-mentioned system, its main feature is that described method comprises the following steps:
(1) system carries out the initialization setting, and described panoramic camera is arranged on the candid photograph pattern that triggers, and described number plate video camera is arranged on continuous candid photograph pattern or triggers the candid photograph pattern;
(2) when needs are captured, described number plate camera switching is arrived the candid photograph pattern that triggers;
(3) described number plate video camera sends synchronous candid photograph signal by corresponding Comprehensive Control module and bus, and postpones the time of delay of a systemic presupposition;
(4) described panorama Comprehensive Control module receives synchronous candid photograph signal from bus, and is converted to the candid photograph triggering signal, delivers to described panoramic camera;
(5) described panoramic camera carries out the corresponding processing operation of capturing according to this candid photograph triggering signal;
(6) described number plate video camera carries out the corresponding processing operation of capturing after postponing end, and light compensating apparatus corresponding to Comprehensive Control module drive corresponding to while carries out the light filling operation.
This realizes in electronic police system that the light compensating apparatus in the synchronous method of light filling between intelligent camera carries out the light filling operation, is specially:
Stroboscopic lamp glimmers at least one times.
This realizes in electronic police system that be no more than 1 millisecond the time of delay in the synchronous method of light filling between intelligent camera.
adopted in the electronic police system of this invention and realized the synchronous system and method for light filling between intelligent camera, due to wherein between intelligent camera can't stationary problem, synchronization mechanism between corresponding video camera is provided, thereby make panoramic camera can synchronously go up number plate video camera on each track, and the supplementary lighting module of shared number plate video camera, effectively reduce the light filling expense of panoramic camera, special in the situation that a plurality of tracks, also without the need for extra light filling switched system, and simple and practical, cost is lower, stable and reliable working performance, the scope of application is comparatively extensive.
Description of drawings
Fig. 1 realizes the synchronous system architecture schematic diagram of light filling between intelligent camera in electronic police system of the present invention.
Embodiment
In order more clearly to understand technology contents of the present invention, describe in detail especially exemplified by following examples.
See also shown in Figure 1, realize between intelligent camera light filling synchronous system in this electronic police system, comprising panoramic camera and several number plate video cameras, each number plate video camera is provided with corresponding light compensating apparatus and Comprehensive Control module, and described panoramic camera is connected with panorama Comprehensive Control module, described each Comprehensive Control module and panorama Comprehensive Control module all interconnect by bus, and described each Comprehensive Control module all is connected with light compensating apparatus with each self-corresponding number plate video camera respectively.
Wherein, described Comprehensive Control module comprises central control unit, shooting driver element and light filling driver element, described central control unit is connected with described number plate video camera by described shooting driver element, and this central control unit is connected with described light compensating apparatus by described light filling driver element; Described panorama Comprehensive Control module comprises central control unit, panoramic shooting driver element, and described central control unit is connected with described panoramic camera by described panoramic shooting driver element.
Simultaneously, described light compensating apparatus is stroboscopic lamp, and described bus is fieldbus, and described each Comprehensive Control module is connected by the self-corresponding number plate video camera of universal serial bus and each respectively.
Should realize in electronic police system the synchronous method of light filling between intelligent camera based on above-mentioned system, comprising following steps:
(1) system carries out the initialization setting, and described panoramic camera is arranged on the candid photograph pattern that triggers, and described number plate video camera is arranged on continuous candid photograph pattern or triggers the candid photograph pattern;
(2) when needs are captured, described number plate camera switching is arrived the candid photograph pattern that triggers;
(3) described number plate video camera sends synchronous candid photograph signal by corresponding Comprehensive Control module and bus, and postpones the time of delay of a systemic presupposition; Usually be no more than 1 millisecond this time of delay;
(4) described panorama Comprehensive Control module receives synchronous candid photograph signal from bus, and is converted to the candid photograph triggering signal, delivers to described panoramic camera;
(5) described panoramic camera carries out the corresponding processing operation of capturing according to this candid photograph triggering signal;
(6) described number plate video camera carries out the corresponding processing operation of capturing after postponing end, and light compensating apparatus corresponding to Comprehensive Control module drive corresponding to while carries out the light filling operation, and this light compensating apparatus carries out light filling and operates, and is specially:
Stroboscopic lamp glimmers at least one times.
In the middle of reality was used, realization of the present invention was based on these points content:
● intelligent camera has several operational modes, captures continuously pattern and triggers the candid photograph pattern.Pattern is captured in triggering wherein, can be after receiving triggering signal, and very fast realization is captured.The delay time of this process is to have in 1 millisecond;
● intelligent camera provides several trigger modes, comprises that serial ports triggers and hardware trigger.No matter be wherein any, all adopt interrupt mode, can after receiving signal, handle it immediately;
● the application of fieldbus can will form communication link between a plurality of video cameras, and can realize very short communication delay.Special in the video camera on a direction, traffic rate even can reach 500kps.And perfect basic communication protocol is provided, make and can write voluntarily relevant basic communication protocol software;
Therefore, carry out based on system of the present invention that between video camera, the synchronous process of light filling is such realization:
Panoramic camera operates in the candid photograph pattern that triggers, and the number plate video camera may operate in continuous candid photograph pattern or triggers the candid photograph pattern.When having the candid photograph request, the number plate camera switching sends synchronizing signal by fieldbus after trigger mode, and postpones a period of time.As aforementioned content, the number plate video camera by this section realize time of delay both between synchronous.Because the time of light compensating lamp flicker is very short, and the time for exposure of video camera is generally all long.Therefore as long as in the process of video camera exposure, complete the flicker of a light compensating lamp and namely completed once effectively light filling.Also just because of this tolerance value, make synchronizeing between panoramic camera and number plate video camera become possibility.
See also shown in Figure 1ly, panoramic camera can be distinguished synchronous four number plate video cameras, light compensating lamp shared with it.Specifically by the technology of fieldbus, the number plate video camera will synchronously be captured instruction and send to panoramic camera.Meanwhile, begin to capture after fixed value of number plate video camera time-delay, namely can complete between the two synchronous.Comprehensive Control functions of modules in system is fieldbus information to be converted to the serial ports trigger message of video camera.
adopted and realized the synchronous system and method for light filling between intelligent camera in above-mentioned electronic police system, due to wherein between intelligent camera can't stationary problem, synchronization mechanism between corresponding video camera is provided, thereby make panoramic camera can synchronously go up number plate video camera on each track, and the supplementary lighting module of shared number plate video camera, effectively reduce the light filling expense of panoramic camera, special in the situation that a plurality of tracks, also without the need for extra light filling switched system, and simple and practical, cost is lower, stable and reliable working performance, the scope of application is comparatively extensive.
In this specification, the present invention is described with reference to its specific embodiment.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (9)
1. realize between intelligent camera light filling synchronous system in an electronic police system, it is characterized in that, described system comprises panoramic camera and several number plate video cameras, each number plate video camera is provided with corresponding light compensating apparatus and Comprehensive Control module, and described panoramic camera is connected with panorama Comprehensive Control module, described each Comprehensive Control module and panorama Comprehensive Control module all interconnect by bus, and described each Comprehensive Control module all is connected with light compensating apparatus with each self-corresponding number plate video camera respectively.
2. realize between intelligent camera light filling synchronous system in electronic police system according to claim 1, it is characterized in that, described Comprehensive Control module comprises central control unit, shooting driver element and light filling driver element, described central control unit is connected with described number plate video camera by described shooting driver element, and this central control unit is connected with described light compensating apparatus by described light filling driver element.
3. realize between intelligent camera light filling synchronous system in electronic police system according to claim 1, it is characterized in that, described panorama Comprehensive Control module comprises central control unit, panoramic shooting driver element, and described central control unit is connected with described panoramic camera by described panoramic shooting driver element.
4. realize in the described electronic police system of any one according to claim 1 to 3 between intelligent camera it is characterized in that light filling synchronous system, described light compensating apparatus is stroboscopic lamp.
5. realize in the described electronic police system of any one according to claim 1 to 3 between intelligent camera it is characterized in that light filling synchronous system, described bus is fieldbus.
6. realize in the described electronic police system of any one according to claim 1 to 3 between intelligent camera it is characterized in that light filling synchronous system, described each Comprehensive Control module is connected by the self-corresponding number plate video camera of universal serial bus and each respectively.
7. realize in electronic police system the synchronous method of light filling between intelligent camera based on system claimed in claim 1 for one kind, it is characterized in that, described method comprises the following steps:
(1) system carries out the initialization setting, and described panoramic camera is arranged on the candid photograph pattern that triggers, and described number plate video camera is arranged on continuous candid photograph pattern or triggers the candid photograph pattern;
(2) when needs are captured, described number plate camera switching is arrived the candid photograph pattern that triggers;
(3) described number plate video camera sends synchronous candid photograph signal by corresponding Comprehensive Control module and bus, and postpones the time of delay of a systemic presupposition;
(4) described panorama Comprehensive Control module receives synchronous candid photograph signal from bus, and is converted to the candid photograph triggering signal, delivers to described panoramic camera;
(5) described panoramic camera carries out the corresponding processing operation of capturing according to this candid photograph triggering signal;
(6) described number plate video camera carries out the corresponding processing operation of capturing after postponing end, and light compensating apparatus corresponding to Comprehensive Control module drive corresponding to while carries out the light filling operation.
8. according to claim 7ly realize in electronic police system the synchronous method of light filling between intelligent camera, it is characterized in that, described light compensating apparatus is stroboscopic lamp, and described light compensating apparatus carries out the light filling operation, is specially:
Stroboscopic lamp glimmers at least one times.
9. according to claim 7ly realize in electronic police system the synchronous method of light filling between intelligent camera, it is characterized in that, be no more than 1 millisecond described time of delay.
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| CN116567402A (en) * | 2023-06-28 | 2023-08-08 | 东莞锐视光电科技有限公司 | Light source controller trigger delay control method and system |
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