CN203840460U - Image acquisition apparatus for day and night sight detection system - Google Patents
Image acquisition apparatus for day and night sight detection system Download PDFInfo
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- CN203840460U CN203840460U CN201420235380.2U CN201420235380U CN203840460U CN 203840460 U CN203840460 U CN 203840460U CN 201420235380 U CN201420235380 U CN 201420235380U CN 203840460 U CN203840460 U CN 203840460U
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Abstract
The image acquisition apparatus for a day and night sight detection system includes an image acquisition module, a network module and a microprocessor. The microprocessor is connected with a DDR memory, a clock module, a rest module, a NAND memory module, a USB OTG module and a SD card module. One end of the network module is connected with the microprocessor while the other end of the network module is connected with an RJ45 network interface for communicating with a server side in real time. The image acquisition module includes two infrared light-compensating lamps, a UVC camera and a USB Host module. The two infrared light-compensating lamps and the UVC camera are connected with the USB Host module respectively. One end of the reset module is connected with the microprocessor while the other end is connected with a reset switch. The USB OTG and the SD card moduel are connected with the microprocessor respectively for performing USB programming on a microprocessor bare board. The image acquisition apparatus for the day and night sight detection system can provide a driver face image with fast enough frame rate and good image quality, can transmit a detection result and image data to the server side, and has the advantages of high universality, low manufacturing cost and easy installation and configuration.
Description
Technical field
The utility model relates to a kind of image collecting device, is used to driver's line-of-sight detection algorithm round the clock that driver's face image of frame per second and good image quality is soon provided enough.
Background technology
In recent years, along with economic develop rapidly, the people's living standard improves constantly, and the sales volume of automobile increases rapidly thereupon, student's quantity steady-state growth especially of driving school.According to various countries scholar for a long time, expert, about the investigation result of traffic safety, show, in driver, vehicle, three factors of road environment, driver occupies topmost status in traffic safety.The data providing according to China Ministry of Communications in 2002 shows, the traffic accident being caused by fatigue driving occupy total amount 48%!
On the other hand, in driving school examination, driver's examination request is also being improved, Ye Gei driving school and coach aspect have increased much pressure simultaneously, and often coach will carry out complete monitoring to a plurality of students' examination process in one day.
Therefore,, in the situation that intelligent automobile and intelligent transportation become a reality gradually, the line-of-sight detection to driver all will have researching value and wide market prospects widely in theoretical research and engineering practice.
Because line-of-sight detection algorithm is had relatively high expectations to gathered driver's facial image, must guarantee that image is not fuzzy, can clearly tell face's organ, such as eyes nose etc.In addition, very high to the requirement of real-time detecting in practical application, at least reach processing speed more than 15 frames/s, therefore in the situation that guaranteeing picture quality, also to guarantee acquisition rate.In night line-of-sight detection, it is important that picture quality and acquisition rate more seem.
IMAQ just refers to the technology of obtaining, storing and transmitting of view data, referring to CN101436168B, and the image-pickup method based on usb and device thereof.Image collecting device great majority complete by PC at present, especially the various functions in the field such as machine vision, recognition of face realize, referring to Chinese patent CN203352670U, quick, portable IMAQ and a processing unit, this patent shortcoming is to involve great expense and is difficult for installation etc.
In recent years, rise along with embedded system, many machine vision and intelligent system etc., can low profile edge system realize, as CN202475591U, video image acquisition and processor, such as recognition of face, iris recognition, robot vision, video conference and the detection of Precision Machining part quality etc.But such system generally all can require high picture quality, require special-purpose high-speed cmos camera, need specialized designs circuit to carry out IMAQ, be unfavorable for the replacing of camera, and price is not cheap.
Now on market, quantity at most, has the most easily been bought and price is cheapest will count USB camera, and great majority are all so-called free drive cameras, meets UVC (USB video class) standard, and its interface is simple, pixel is high, imaging clearly.But the default parameters of this class camera is all for setting in well-lighted situation, but the in the situation that of night or optical fiber dimness, the object display effect of shooting, with regard to non-constant, is not suitable in intelligent checking system.For this, CN203014973U has proposed a kind of image capture device with light filling function, although final output is also USB interface, but it is for specific imageing sensor and making, be equivalent to the USB camera of making for particular sensor, rather than for the application of existing most popular USB camera, a kind of general improvement project is proposed, such as revising its exposure parameter, improve picture quality rather than merely add light filling equipment.
Utility model content
Technology of the present utility model is dealt with problems: the deficiency that overcomes the gained problem of image blurring of prior art, provide a kind of for the image collecting device of Line-of-sight detection systems round the clock, driver's face image of fast frame per second and good image quality can be provided enough, and testing result and view data can be sent to server end, and meet highly versatile, cheap, be easy to install and the object of configuration.
The utility model technical solution is: a kind of for the image collecting device of Line-of-sight detection systems round the clock, comprising: image capture module, mixed-media network modules mixed-media and microprocessor; Described microprocessor periphery is connected with respectively DDR internal memory, clock module, reseting module, NAND memory module, USB OTG module, SD card module; Described mixed-media network modules mixed-media one end is connected with microprocessor, and the other end is connected to RJ45 network interface, for server end real time communication; Described image capture module comprises the USB Host module that UVC camera is connected with UVC camera, realizes the Real-time Collection of facial image by V4L2; Described reseting module one end connects microprocessor, and the other end connects reset switch; Described USB OTG is connected with microprocessor respectively with SD card module, for microprocessor bare board is carried out to USB programming; Power module provides working power for whole device.Two infrared light compensating lamps of described image capture module, can not cause interference to driver's normal vision, and by the control to exposure mode and time, guarantee for night Line-of-sight detection systems enough frame per second and the second best in quality driver's facial image are provided.
Described microprocessor is connected with buzzer module, and when Line-of-sight detection systems detects that Network Abnormal, camera are abnormal, ARM plate is when extremely starting, buzzer can have respectively the ring of obstructed frequency and number of times, and alert is made corresponding operating.
Described microprocessor is connected with external interface module, comprise RS232 serial bus interface and IO interface, RS232 serial bus interface has been installed Solarnumen Comdebug (as SecureCRT) PC with any one is connected, be convenient to field adjustable and configuration modification, and a series of IO interfaces that retain, for functions expanding in the future, as display screen, CMOS utilizing camera interface.
The utility model advantage is compared with prior art:
(1) the utility model can provide enough driver's face image of fast frame per second and good image quality, and testing result and view data can be sent to outside, and meet highly versatile, cheap, be easy to install and the object of configuration
(2), due to the use of infrared light filling equipment, go for line-of-sight detection round the clock; Infrared light filling equipment non interference, as long as install properly, the use of infrared light filling equipment and USB camera, can not interfere with driver's normal vision.
(3) the utility model dismounting, replacing conveniently, do not need special camera device, only need prevailing USB free drive camera on the market, can use this device.
(4) the utlity model has network sending function, real-time testing result and view data are sent to server end, thereby preview is provided, captures function for server; Can also accept server command, " daytime ", " night " pattern are set, operating personnel can also configure ARM plate IP, MAC Address at any time according to place network environment, guarantee a network connections.
(5) the utility model is cheap, has reduced cost.
Accompanying drawing explanation
Fig. 1 is image collecting device figure of the present utility model;
Fig. 2 is course of work flow chart of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises microprocessor 1, USB Host module 2, mixed-media network modules mixed-media 3, RJ45 network interface 301, SD card module 4, NAND memory module 5, external interface module 6, DDR internal memory 7, USB OTG module 8, buzzer module 9, clock module 10, reseting module 11, power module 12, infrared supplementary lighting module 13, UVC camera 14, reset switch 111.Microprocessor 1 connects respectively USB Host module 2, mixed-media network modules mixed-media 3, SD card module 4, NAND memory module 5, external interface module 6, DDR internal memory 7, USB OTG module 8, buzzer module 9, clock module 10, reseting module 11, power module 12, infrared supplementary lighting module 13; In addition, mixed-media network modules mixed-media 3 mixed-media network modules mixed-medias 3 are also connected to RJ45 network interface 301; On reseting module 11, be connected to reset switch 111; USB Host module 2 is connected with UVC camera 14.Above-mentioned each module etc. all can adopt commercial.
External interface module 6 comprises RS232 serial bus interface and special-purpose, general Purpose IO Interface.Wherein, RS232 serial bus interface has been installed Solarnumen Comdebug (as SecureCRT) PC with any one is connected, for showing its state and error message in described device work, debug process, and according to network environment of living in, directly revise the configuration informations such as its IP, MAC Address, guarantee that it is unimpeded with being connected of server.And a series of IO interfaces that retain, for functions expanding in the future, such as touch screen interface, can carry out QT user interface development; High-speed cmos utilizing camera interface, in the future replaceable USB camera; General Purpose IO Interface, can be used for connecting User Defined external equipment, such as AD sampler.
Of the present utility model for the image collecting device of Line-of-sight detection systems round the clock, described supplementary lighting module 13 preferably adopts two 36 infrared lamp array lamp plates, be arranged on driver's forehead 45 degree, 25cm place, guarantee to be issued to good light filling effect in the situation of not disturbing driver's normal vision.Described camera 14 preferably adopts UVC camera, and free drive camera, effectively to realize the control to exposure mode and time for exposure, obtains enough driver's facial image of frame per second and good image quality soon.Described microprocessor 1 is preferably selected the S3C6410 of ARM11 kernel, DDR internal memory 7 is selected H5MS1G62MFP-J3M, NAND storage chip 5 is selected MT29F8G08ABABA, and the network card chip of mixed-media network modules mixed-media 3 is preferably selected DM9000AEP, with ensure compatibility and processing speed.
The utility model course of work is as follows: according to the described harvester of the correct installation of environment on car, opening power 12 starts harvesters, need to open infrared light compensating lamp 13 night.After device starts, the UVC camera 14 being connected with USB Host interface 2 is opened, and mixed-media network modules mixed-media 3 attempts connecting the server in local area network (LAN), and camera is made mistakes and network does not connect all by buzzing warning autoboot.In running, driver's facial image that UVC camera 14 gathers in driving procedure, delivers microprocessor 1 and processes, the parameter then sending according to server and requirement, testing result and facial image will be delivered mixed-media network modules mixed-media 3, by RJ45 network interface 301, are sent to server.
Other module that the utility model relates to has its special purposes, such as SD card 4 and USB OTG module 8 are for entering NAND memory module 4 on plate by linux system (comprising complete line-of-sight detection program) programming, reset button 111 can be restarted at any time this device in running, the serial ports of external interface module 6 is connected to the PC that Solarnumen Comdebug (as SecureCRT) is housed, for monitoring this device operating state and error message.The different frequency that buzzer module 8 is sent and the ring of number of times, for error message corresponding to prompting operation person.
Claims (3)
1. for an image collecting device for Line-of-sight detection systems round the clock, it is characterized in that comprising: image capture module, mixed-media network modules mixed-media and microprocessor; Described microprocessor periphery is connected with respectively DDR internal memory, clock module, reseting module, NAND memory module, USB OTG module, SD card module, power module; Described mixed-media network modules mixed-media one end is connected with microprocessor, and the other end is connected to RJ45 network interface; Described image capture module comprises two infrared light compensating lamps, UVC camera and USB Host module, and two infrared light compensating lamps are connected with USB Host module respectively with UVC camera; Described reseting module one end connects microprocessor, and the other end connects reset switch; Described USB OTG is connected with microprocessor respectively with SD card module; Power module provides working power for whole device.
2. according to claim 1 for the image collecting device of Line-of-sight detection systems round the clock, it is characterized in that: described microprocessor is connected with buzzer module.
3. according to claim 1ly for the image collecting device of Line-of-sight detection systems round the clock, it is characterized in that: described microprocessor is connected with external interface module, comprise RS232 serial bus interface and IO interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235380.2U CN203840460U (en) | 2014-05-08 | 2014-05-08 | Image acquisition apparatus for day and night sight detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235380.2U CN203840460U (en) | 2014-05-08 | 2014-05-08 | Image acquisition apparatus for day and night sight detection system |
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| Publication Number | Publication Date |
|---|---|
| CN203840460U true CN203840460U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420235380.2U Expired - Fee Related CN203840460U (en) | 2014-05-08 | 2014-05-08 | Image acquisition apparatus for day and night sight detection system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401118A (en) * | 2018-03-05 | 2018-08-14 | 北京中科虹霸科技有限公司 | Control the iris collection device and method of infrared lamp lighting time |
| CN109214358A (en) * | 2018-09-30 | 2019-01-15 | 天津天地伟业电子工业制造有限公司 | A method of Image Acquisition detection is carried out by USB camera |
| CN109862322A (en) * | 2019-02-19 | 2019-06-07 | 深圳市研诺达科技有限公司 | A kind of audio-visual acquisition equipment of 4G based on the transmission of UVC data |
-
2014
- 2014-05-08 CN CN201420235380.2U patent/CN203840460U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401118A (en) * | 2018-03-05 | 2018-08-14 | 北京中科虹霸科技有限公司 | Control the iris collection device and method of infrared lamp lighting time |
| CN108401118B (en) * | 2018-03-05 | 2020-10-23 | 北京中科虹霸科技有限公司 | Iris acquisition device and method for controlling lamp-on time of infrared lamp |
| CN109214358A (en) * | 2018-09-30 | 2019-01-15 | 天津天地伟业电子工业制造有限公司 | A method of Image Acquisition detection is carried out by USB camera |
| CN109862322A (en) * | 2019-02-19 | 2019-06-07 | 深圳市研诺达科技有限公司 | A kind of audio-visual acquisition equipment of 4G based on the transmission of UVC data |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20200508 |