CN203414606U - Vehicle bottom safety inspection system - Google Patents
Vehicle bottom safety inspection system Download PDFInfo
- Publication number
- CN203414606U CN203414606U CN201320526604.0U CN201320526604U CN203414606U CN 203414606 U CN203414606 U CN 203414606U CN 201320526604 U CN201320526604 U CN 201320526604U CN 203414606 U CN203414606 U CN 203414606U
- Authority
- CN
- China
- Prior art keywords
- optoelectronic switch
- video camera
- light source
- safety check
- sensing device
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Studio Devices (AREA)
Abstract
The utility model discloses a vehicle bottom safety inspection system. The system comprises a sensing device which uses a photoelectric induction phenomenon to record the passing state of a vehicle and sends a corresponding photoelectric signal, a micro controller which is electrically connected with the sensing device, receives the photoelectric signal sent by the sensing device, generates a pulse signal according to the photoelectric signal, sends the pulse signal to an acquisition card, generates a switch signal, and sends the switch signal to a first auxiliary light source, the acquisition card which is electrically connected with the micro controller, receives the pulse signal sent by the micro controller to determine the acquisition frequency, a first camera which is electrically connected with the acquisition card, and shoots vehicle bottom pictures according to the acquisition frequency of the acquisition card, and the first auxiliary light source which is electrically connected with the micro controller, and turns on or off a light source according to the switch signal sent by the micro controller. According to the utility model, without affecting the normal running of the vehicle, vehicle bottom scanning and license plate recognition and recording are carried out; the detection rate is improved; and the entering of a dangerous vehicle is effectively prevented.
Description
Technical field
The utility model relates to vehicle safety check technical field, particularly safety check system at the bottom of a kind of car that does not affect normal vehicle operation.
Background technology
In recent years, along with being becoming increasingly rampant that car bomb and contraband goods are transported goods for sale, various anti-terrorism equipments have been come into the people visual field.Yet the inspection for vehicle is also difficult for accomplishing thoroughly, is especially easy to conceal the position, car bottom of explosive, suspicious object.For the inspection at the bottom of car, substantially also rest at present the stage of artificial hand-held mirror, not only detection speed is slow, efficiency is low, and inspection is not comprehensive, is difficult to eliminate safe hidden trouble.Therefore, how to provide fast and safely a kind of and do not affect the car of normal vehicle operation at the bottom of safety check system become those skilled in the art's problem demanding prompt solution.
Summary of the invention
Content of the present utility model is to solve that the efficiency existing in safety check technology at the bottom of existing car is low, the shortcoming of poor reliability, and safety check system at the bottom of a kind of new and effective car is provided.
For reaching above-mentioned purpose, the utility model proposes safety check system at the bottom of a kind of car, comprising:
Sensing device, utilizes the state that passes through of optoelectronic induction phenomenon registration of vehicle, and sends corresponding photosignal;
Microcontroller, is electrical connected with described sensing device, receives the photosignal that described sensing device sends, and according to this photosignal, produces a pulse signal and be sent to capture card;
Capture card, is electrical connected with described microcontroller, receives pulse signal that described microcontroller sends to determine frequency acquisition;
The first video camera, is electrical connected with described capture card, according to the frequency acquisition of described capture card, takes car negative film;
The first secondary light source, is electrical connected with described sensing device, and the photosignal sending according to described sensing device is realized the unlatching of light source or closed.
According to safety check system at the bottom of a kind of car the utility model proposes, described sensing device comprises the first optoelectronic switch, the second optoelectronic switch and the 3rd optoelectronic switch, described the first optoelectronic switch and described the second optoelectronic switch are positioned at a side of described the first video camera, described the 3rd optoelectronic switch is positioned at the opposite side of described the first video camera, described the first optoelectronic switch, described the second optoelectronic switch and described the 3rd optoelectronic switch are located along the same line, and in order to realize forward, test the speed.
According to safety check system at the bottom of a kind of car the utility model proposes, also comprise the 4th optoelectronic switch, be positioned at the same side of described the first video camera with described the 3rd optoelectronic switch; Described the 4th optoelectronic switch and described the 3rd optoelectronic switch, described the second photoelectricity are located along the same line, and in order to realize oppositely, test the speed.
According to safety check system at the bottom of a kind of car the utility model proposes, also comprise the second video camera, be arranged on the position of described vehicle license, and according to the acquisition state of described the first video camera, the acquisition state of software control the second video camera, in order to take vehicle license picture.
According to safety check system at the bottom of a kind of car the utility model proposes, also comprise the second secondary light source, be arranged on the position of described vehicle license, described the second secondary light source includes luminance sensor, by the brightness of sensing surrounding environment, opens or close light source.
According to safety check system at the bottom of a kind of car the utility model proposes, described the first video camera is linear array scanning formula video camera, and described the second video camera is planar array scanning formula video camera.
Compared with prior art, the beneficial effects of the utility model are:
Safety check system at the bottom of the car the utility model proposes, can be in the situation that not affecting normal vehicle operation, carry out car at the bottom of scanning show and license plate number identification record, what make that information covers all at one glance at the bottom of car is presented in face of detection person.The utility model has not only improved detection rates, and can more effectively prevent entering of dangerous vehicle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the gatherer process schematic diagram that tests the speed of the present utility model;
Fig. 3 is working timing figure of the present utility model;
Fig. 4 is process flow diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, with regard to the utility model is above-mentioned, be described further with other technical characterictic and advantage.
Fig. 1 is structural representation of the present utility model.As shown in Figure 1, the utility model comprises sensing device, microcontroller, capture card, the first video camera and the first secondary light source.Wherein sensing device is set in parallel in a side of Vehicle Driving Cycle road, utilizes the state that passes through of optoelectronic induction phenomenon registration of vehicle, and sends corresponding photosignal; Microcontroller and sensing device are electrical connected, and receive the photosignal that described sensing device sends, and according to this photosignal, produce a pulse signal and be sent to capture card; Capture card and microcontroller are electrical connected, and receive pulse signal that described microcontroller sends to determine frequency acquisition; The first video camera and capture card are electrical connected, and according to the frequency acquisition of described capture card, take car negative film; The first secondary light source and sensing device are electrical connected, and the photosignal sending according to described sensing device is realized the unlatching of light source or closed.
Continuing to consult Fig. 2, is the gatherer process schematic diagram that tests the speed of the present utility model.Of the present utility model test the speed and car negative film gatherer process in be mainly concerned with the first video camera, the first optoelectronic switch, the second optoelectronic switch, the 3rd optoelectronic switch, the 4th optoelectronic switch, microcontroller, capture card and the first secondary light source (not shown).Wherein, the first video camera is gigabit network interface line array video camera, has the special fish eye lens that shooting angle is greater than 150 degree on it.First to fourth optoelectronic switch has formed the sensing device of above mentioning, it matches to calculate car speed with microcontroller, and calculate appropriate pulsed frequency according to this car speed, this pulsed frequency is sent to the capture card being connected with the first video camera, thereby controls the scanning of taking pictures at the bottom of to car of pulsed frequency that the first video camera calculates according to this.Above-mentioned this drainage pattern is called external trigger pattern, by the triggering of optoelectronic switch, controls collection and the end of the first video camera.In order to improve the reliability of native system, the utility model also provides another free drainage pattern in addition, as the standby mode of operation breaking down when above-mentioned optoelectronic switch.This drainage pattern is not subject to Pulse-trigger control, but makes the first video camera keep gathering the state of image always, until finally obtain frame at the bottom of complete car.
Describe the course of work of the present utility model below in detail, please refer to Fig. 2, Fig. 3 and Fig. 4.In four optoelectronic switches of the present utility model, the first optoelectronic switch and the second optoelectronic switch are positioned at camera field of view front end, and the 3rd optoelectronic switch and the 4th optoelectronic switch are positioned at rear end, visual field.Wherein first, second, third optoelectronic switch is for scanning the vehicle of forward travel, and the 4th, the 3rd, the second optoelectronic switch is for scanning the vehicle of reverse driving.The forward travel of all take in the present embodiment describes as example.
First, when being all set to shading, opens by above-mentioned optoelectronic switch output high level;
When vehicle enters the first optoelectronic switch region, the first optoelectronic switch is opened, and detects the signal of the 4th optoelectronic switch simultaneously, if the 4th optoelectronic switch is high, and attonity, otherwise open the first secondary light source, and carry out following steps;
Microcontroller obtains the moment T1 that the first optoelectronic switch is opened;
In like manner, the moment of opening is T2 to the second optoelectronic switch, and the mistiming through the first optoelectronic switch, the second optoelectronic switch is Δ T:
ΔT=T2-T1(s)
Wherein, mistiming Δ T precision is us level;
Calculate this distance L of 2 (mm), by this average velocity of 2, calculate: V=L/ Δ T
Ask for system level direction (referring to vehicle traveling direction here) resolution Xp, suppose that horizontal resolution is 2k, Wx is horizontal direction visual field size, and formula is as follows:
Xp(mm/pixels)=Wx/2048
Again known system vertical direction resolution Yp and level respectively rate Xp equate (this vertical direction resolution Yp is determined by the parameter of the first video camera own, is known quantity), the umber of pulse F of microcontroller output is:
F=V/Yp
Microcontroller output pulse signal, to capture card, is controlled picking rate by capture card;
When microcontroller grabs the first optoelectronic switch rising edge, open the first secondary light source, while grabbing the second optoelectronic switch rising edge, pulse output starts, and while grabbing the 3rd optoelectronic switch negative edge, the first secondary light source is closed, the end of output of pulse simultaneously;
In like manner, for the vehicle of backward going, when vehicle enters the 4th optoelectronic switch region, check the signal of the first optoelectronic switch, if the 4th optoelectronic switch is high, the first optoelectronic switch is lowly to control the reverse collection of the first video camera, otherwise attonity.
In addition, the utility model also comprises the second video camera (not shown), is arranged on the position of described vehicle license, for taking vehicle license information, also be provided with the second secondary light source (not shown), the use of the illumination while taking pictures as the second video camera simultaneously.This second video camera is preferably planar array scanning formula video camera.
To description of the present utility model, be illustrative above; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it, but they all will fall in protection domain of the present utility model in claim within the spirit limiting and scope.
Claims (7)
1. a safety check system at the bottom of car, is characterized in that, comprising:
Sensing device, utilizes the state that passes through of optoelectronic induction phenomenon registration of vehicle, and sends corresponding photosignal;
Microcontroller, is electrical connected with described sensing device, receives the photosignal that described sensing device sends, and according to this photosignal, produces a pulse signal and be sent to capture card, produces a switching signal simultaneously and is sent to the first secondary light source;
Capture card, is electrical connected with described microcontroller, receives pulse signal that described microcontroller sends to determine frequency acquisition;
The first video camera, is electrical connected with described capture card, according to the frequency acquisition of described capture card, takes car negative film;
The first secondary light source, is electrical connected with described microcontroller, and the switching signal of sending according to described microcontroller is determined unlatching or closed light source.
2. safety check system at the bottom of a kind of car according to claim 1, it is characterized in that, described sensing device comprises the first optoelectronic switch, the second optoelectronic switch and the 3rd optoelectronic switch, described the first optoelectronic switch and described the second optoelectronic switch are positioned at a side of described the first video camera, described the 3rd optoelectronic switch is positioned at the opposite side of described the first video camera, described the first optoelectronic switch, described the second optoelectronic switch and described the 3rd optoelectronic switch are located along the same line, and in order to realize forward, test the speed.
3. safety check system at the bottom of a kind of car according to claim 2, is characterized in that, also comprises the 4th optoelectronic switch, is positioned at the same side of described the first video camera with described the 3rd optoelectronic switch; Described the 4th optoelectronic switch and described the 3rd optoelectronic switch, described the second photoelectricity are located along the same line, and in order to realize oppositely, test the speed.
4. safety check system at the bottom of a kind of car according to claim 1, is characterized in that, also comprises the second video camera, is arranged on the position of described vehicle license, for taking vehicle license picture.
5. safety check system at the bottom of a kind of car according to claim 4, it is characterized in that, also comprise the second secondary light source, be arranged on the position of described vehicle license, described the second secondary light source includes luminance sensor, by the brightness of sensing surrounding environment, opens or close light source.
6. safety check system at the bottom of a kind of car according to claim 1, is characterized in that, described the first video camera is linear array scanning formula video camera.
7. safety check system at the bottom of a kind of car according to claim 4, is characterized in that, described the second video camera is planar array scanning formula video camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526604.0U CN203414606U (en) | 2013-08-27 | 2013-08-27 | Vehicle bottom safety inspection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526604.0U CN203414606U (en) | 2013-08-27 | 2013-08-27 | Vehicle bottom safety inspection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203414606U true CN203414606U (en) | 2014-01-29 |
Family
ID=49977488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320526604.0U Expired - Lifetime CN203414606U (en) | 2013-08-27 | 2013-08-27 | Vehicle bottom safety inspection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203414606U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777523A (en) * | 2015-04-13 | 2015-07-15 | 中国民航大学 | Panoramic detecting system for chassis of motor vehicle at airport crossing and control method |
| CN111580176A (en) * | 2020-05-27 | 2020-08-25 | 武汉芯杰毫汽车用品有限公司 | Safety inspection device with anti-impact truck bottom |
-
2013
- 2013-08-27 CN CN201320526604.0U patent/CN203414606U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777523A (en) * | 2015-04-13 | 2015-07-15 | 中国民航大学 | Panoramic detecting system for chassis of motor vehicle at airport crossing and control method |
| CN104777523B (en) * | 2015-04-13 | 2017-04-19 | 中国民航大学 | Panoramic detecting system for chassis of motor vehicle at airport crossing and control method |
| CN111580176A (en) * | 2020-05-27 | 2020-08-25 | 武汉芯杰毫汽车用品有限公司 | Safety inspection device with anti-impact truck bottom |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102149273B1 (en) | Method and apparatus for recognizing number-plate | |
| CN205193981U (en) | Radar vision fuses intelligent warning system with low misstatement rate | |
| CN101533557B (en) | Traffic information detection method and traffic information detection device | |
| CN202855071U (en) | Intelligent high-definition toll-gate electronic police | |
| US11176685B2 (en) | Image collection control method and device, and vehicle chassis image obtaining system | |
| CN204155450U (en) | High definition bayonet apparatus on a kind of road | |
| CN105306912A (en) | Intelligent cat-eye system triggering shooting based on luminous intensity and distance detection | |
| MX2014000603A (en) | Moving body detection device and moving body detection method. | |
| CN107344696A (en) | Tire crane anti-collision based on real time video image identification hits early warning system and its method | |
| CN101699531A (en) | Infrared correlation identification alarm system and identification method thereof | |
| CN106125151A (en) | Anti-detector of taking on the sly based on smart mobile phone | |
| CN203414606U (en) | Vehicle bottom safety inspection system | |
| CN103797528A (en) | Biometric device | |
| EP2993889A1 (en) | Illumination apparatus | |
| CN103646545A (en) | Infrared bayonet camera snapshot realization method | |
| CN201654933U (en) | Infrared associative recognition alarm system | |
| CN203179283U (en) | Intelligent detecting device for red lamp running through front photographing and back photographing | |
| CN104361700A (en) | Intelligent photoelectric radar warning instrument and method | |
| CN2736737Y (en) | Laser spot position detector | |
| CN101751781A (en) | High-definition electronic police device | |
| CN208424561U (en) | The hunting camera of multi-angled shooting | |
| CN208476803U (en) | Pantograph electric spark detection system | |
| CN201311711Y (en) | High-definition electronic police device | |
| CN202092606U (en) | Metering device for metallic paint face thickness | |
| CN202974447U (en) | Highlight-harm-resisting thermal imaging instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |
|
| CX01 | Expiry of patent term |