CN1300981A - Microcomputer controlled digital monitor system and method - Google Patents
Microcomputer controlled digital monitor system and method Download PDFInfo
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- CN1300981A CN1300981A CN 99126617 CN99126617A CN1300981A CN 1300981 A CN1300981 A CN 1300981A CN 99126617 CN99126617 CN 99126617 CN 99126617 A CN99126617 A CN 99126617A CN 1300981 A CN1300981 A CN 1300981A
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Abstract
A digital monitor system controlled by microcomputer and method is disclosed. Said system is composed of computer for managing the system, digital camera for taking images, system control box for providing human control commands, interface-multiplex circuit, and video monitor for system installation and debugging and monitoring function. All of the unit are connected mutually according to the invented logic.
Description
The present invention is the video electronic surveillance, is meant a kind of microcomputer controlled digital monitor system and method especially, is suitable for the various application purposes that needs implement to monitor and write down automatically scene.
Existing video monitoring system is various in style, mainly can be divided into analog-and digital-two classes, the dynamic surveillance that this class surveillance is used for various occasions is highly effective, yet the user experience from industries such as traffic administration, bank's supervision, restaurant's supervision shows, utilize the video of this surveillance to write down when recognizing people, mark of car and other targets, it is extremely difficult that problem becomes.In many critical occasions, monitor that video can not provide useful information, subject matter is, monitors that video is subjected to the restriction of videoscanning standard and system video bandwidth, and resolution is too low, for example is lower than 400 lines in vertical direction, and staggered scanning worsens situation.Video image acquisition can be found in computing machine the image of strange and idol generally can not registration, dislocation is at random, and is all the more so when in the image moving target being arranged.Therefore, the true resolution of images acquired is lower than 250 picture dots in vertical direction, and these difficulties make the effect of the not competent record object of existing supervision video system.Undoubtedly, the resolution of raising surveillance is the key of problem.Adopt the high definition video system the most simple and direct technically, but price is too high, at least unlikely formation market in the several years recently.Digital camera comes into the market as commodity, but is limited to artificial shooting, by computer output image, digital camera is placed under the computer control, realizes that the system of supervision automatically and record yet there are no commercial report.
The purpose of this invention is to provide a kind of microcomputer controlled digital monitor system and method, it can improve the resolution (for example reaching 1024 * 1280 pixels or higher) of monitor record significantly, and guarantees that power system capacity is big, easy to use, cost is low, is suitable for applying.
A kind of microcomputer controlled digital monitor system of the present invention comprises digital camera, computing machine and interface circuit; Comprising: a computing machine, be used for management system, control camera, deposit image and picture browsing, this computing machine links to each other with digital camera, sensor and steering logic generative circuit, system control box by serial line interface; Digital camera is used to obtain image; Digital camera links to each other with computing machine by serial line interface; The digital camera that video output is arranged, its video output is transferred to video monitor by system control box; Sensor and steering logic generative circuit, being used for the perception moving target enters photographed scene and steering logic is provided, every digital camera has a cover corresponding sensor and a steering logic generative circuit, and the output of steering logic generative circuit links to each other with computing machine by serial line interface; System control box is used to provide the manual control order, and simplified system is operated and prevented the keyboard maloperation, and it links to each other with the steering logic generative circuit, and links to each other with computing machine by serial line interface; When containing video monitor in the microcomputer controlled digital monitor system, system control box provides the video adapting of digital camera and video monitor; Interface-multiplex circuit is used to connect computing machine, digital camera, sensor and steering logic generative circuit, system control box; Video monitor, the system Installation and Debugging of being used to are provided convenience and artificial the supervision, and it selects to accept the vision signal of a digital camera by system control box.
Wherein microcomputer controlled digital monitor system allows to contain one or more digital camera.
Wherein sensor and steering logic generative circuit, it produces former automatic or manual logical signal of control camera.
Wherein system control box it be independent of keyboard, the manual control order is provided, implement video adapting.
The method of a kind of microcomputer controlled digital monitor system of the present invention, this method is: realize system management and control with computer program; The computing machine follow procedure carries out initialization by communication interface logarithmic code camera running parameter and data transfer rate; Manual control order on the computer interpretation control enclosure is used for the execution of control program; These orders comprise: automatically-and the manual state selection; Manually single-repeatedly model selection; Manually scene (camera) is selected; When auto state, sensor and steering logic signal on the computing machine follow procedure tested in sequence communication port, the control camera takes and view data shifts to hard disc of computer; When manual state, computer program utilizes single-repeatedly model selection and scene (camera) selection control code realization scene (camera) selection, takes control and view data transfer; The image that digital camera generates deposits hard disc of computer with the form of data file in through communication port, by filename document image shooting time (moon, day, time, minute, second); Special-purpose Photo Browser allows the operator to key in the zero-time of browsing, and order is fast browsing in groups, and every frame is browsed picture can select only to contain 1 width of cloth or several (for example 2 to 48 width of cloth) pictures.
For further specifying structure of the present invention and feature, below in conjunction with embodiment and accompanying drawing, the present invention is done a detailed description, wherein:
Fig. 1 is a system architecture theory diagram of the present invention;
Fig. 2 is a computer control process chart of the present invention;
Fig. 3 is the structured flowchart of sensor and accessory circuit;
Fig. 4 is a control enclosure panel synoptic diagram.
At first see also Fig. 1, microcomputer controlled digital monitor system hardware of the present invention comprises following ingredient;
(1) digital camera, it must have high image resolution ratio, serial communication interface is arranged, not only allow to realize image is transferred to the computing machine from camera, and permission is provided by computing machine, and steering order is come the state parameter of regulation camera and commander's camera is taken and view data transmits; Digital camera must allow external power supply to carry out work; Digital camera can have or not have video output, but preferably has the camera of video output.When digital camera had video output, system can provide conventional video monitor function simultaneously, is decided by the supervision scene that the user wishes, can contain one or more cameras in the system.
(2) computing machine comprises conventional peripheral hardware; Native system software can move on common computer, but using top-grade computer can reduce camera carries out the time-delay of taking instruction and accelerates the transfer velocity of view data from the camera to the hard disk, system controlling software only requires that the very little primary memory space just can move, but big main memory (more than 32MB) and video memory (more than 8MB) can be accelerated picture browsing and target searching speed.Computing machine should have bigger hard disk, in the utility system, distribute the space deposit picture should be more than 1GB, the demand in this space is decided by the application requirements of system, computing machine should have the standard serial interface that uses for the user, realize microcomputer and camera by it, and the communication of microcomputer and control enclosure.
(3) sensor and accessory circuit, sensor are used for the perception moving target and enter photographed scene, so that system can be automatically snapped; Multiple sensors (optics, infrared, induction, mechanics etc.) can be used for native system.The riding position of sensor enters the porch of scene in target.Sensor output signal need be through amplifying and shaping.Circuit design guarantees that the signal that target causes when crossing inlet can be amplified fully, suppresses the fixed background signal, suppresses noise.It may be plus or minus that target enters the signal that scene causes, even positive and negative variation.The final output of circuit can only be a single logic level values, this value representation has target to enter, the extended period of this value should be suitable, the length of extended period should guarantee that calculating function detects by communication interface, simultaneously again can not be oversize, guarantee that sensor circuit can return to the no signal input state as early as possible, prepare the target that the perception next one enters scene.In order to need to add manual logic control signal in manually commander's camera shooting down, comprise single shot and repeatedly continuous shooting control, camera or scene are selected to control.These steering logics all enter computing machine from serial line interface.For this reason, need to add the steering logic generative circuit; It gets up automatic and manual logical combination, forms unified logical signal.If the user need monitor a plurality of scenes, need dispose a camera and a cover sensor and an accessory circuit to each scene.
(4) system control box, system control box use for simplified system and prevent maloperation and design.In case surveillance is finished initialization, enter monitored state, system's control is just given control enclosure and is carried out.When having only the F12 key to key on the microcomputer keyboard, system withdraws from monitored state, and any other key operation does not have influence to system monitoring.This design has guaranteed that monitored state is not subjected to the influence of maloperation.Simultaneously, if be necessary that computing machine can be carried out other tasks (but this mode is not recommended) that the user wishes simultaneously.The switch that is provided with on the control enclosure has: power switch, the power supply of its management camera, sensor and accessory circuit.Automatically-manual selection switch.When this switch places when automatic, monitor and record will carry out automatically, not manual intervention.When this switch places when manual, can the artificially select single shot and continuous shooting dual mode repeatedly.If more than one of the scene of system monitoring under manual state, also needs to select camera or scene.These selections realize with pushbutton switch.If digital camera has video output and selected video monitor for use in system, the video output of a plurality of cameras selects a vision signal to give monitor through control enclosure with the scene selector switch.
(5) interface-multiplex circuit, routinely, this is branch's serial interface circuit.The scene number that how much is decided by the needs supervision of branch.Each branch is used for one group of camera-sensor circuit and computer realization communication.Use suitable driver can expand the definition address of computing machine serial line interface, make each branch be defined as an independently serial communication interface.By software control, computing machine can be visited each communication interface easily, just realizes the communication with each branch.
(6) video monitor (option), the commercial digital camera that has provides video output.Therefore can directly insert video monitor, it can provide conventional video dynamic menu, and the user can insert video tape recorder, works as routine video surveillance.Its effect mainly is that (a) installs for system and debugging is provided convenience in native system; On-the-spot sight is provided when (b) needing artificial the supervision.If site of deployment has been equipped video monitoring system, then the video monitor in the digital monitor system can save.
The software of native system comprises the two large divisions:
(1) system controlling software, this software make computing machine can control and work in coordination with the work of each outer relay part.This comprises: obtain the access address of each outer relay part, the data communication speed of regulation camera-computing machine, the running parameter of regulation camera; Steering logic on detection and the explanation communication port is controlled and is managed system according to steering logic, comprises starting taking and realize the image data transfer; Deposit image data in hard disk with document form, with filename recordable picture shooting time (moon, day, time, minute, second); User-friendly interface is provided, makes system operation become free and relaxed.The key component of system software is the management camera and realizes data communication.For this reason, software programming must meet the communications protocol of camera, and Visual C++ is first-selected programming language.
(2) picture browsing and image processing software, this software make the user can search target fast and realize user's treatment desired task.Browse silent to decide mode be up-to-date 24 width of cloth pictures that obtain.The user can specify and browse zero-time (moon, day, time, minute, second), browses in order in groups.Simultaneously, the picture number that the user can specify every width of cloth to browse, optional from 2 frames to 48 frames.This means the different resolution of browsing.With the interested picture of mouse-pointing, a mouse click promptly obtains the picture that amplifies.Image processing software is realized format conversion and other Flame Image Process tasks of customer requirements.
System controlling software and picture browsing process software can be combined in work under the operation interface.
The characteristics of native system are the digital cameras that computerizeds control, and introduce sensor in system, and the assurance system can write down the picture (scene that personnel, vehicle are come in and gone out) that needs most automatically or manually.Its result deposits in the hard disc of computer, is convenient to search fast.Use and divide support interface, time-sharing software handoff technique to make a computing machine can control many cameras.It is simple, automatic that the computing machine special software has guaranteed that system uses.Special-purpose Photo Browser makes the user can search the target of care easily and quickly.
See also Fig. 2, monitor record process and How It Works are described as follows, and after the native system working software is performed, just with each parameter initialization of system, comprise the state parameter that camera is set, message transmission rate, COM port address etc.Monitor record can carry out automatically or manually, and this can be selected by the switch on the small-sized control enclosure.This control enclosure make system in case start the back just needn't operation keyboard, make to operate to become very simple.If system is selected as auto state, in case initialization is finished, computing machine is just checked communication interface one by one.In case the signal that has sensor to send here on certain communication interface of perception, computing machine is given an order immediately, the camera that is connected with this mouthful is carried out taken, and pass to computing machine with being about to view data by camera, deposits in the hard disk with document form.Whether the computing machine inspection has halt command then, and whether the manual state order is arranged.If there are not these orders, program jump is checked communication interface one by one to from another communication interface, the process above repeating.
If gauge tap places manually, just need select controlled camera or the corresponding scene of camera with switch.Control enclosure output reaches the effect of selecting scene with digital mode specified camera and communication port.Camera can be selected single shot and two kinds of patterns of continuous shooting repeatedly.Under the single shot pattern, the single shot switch on the control enclosure is pressed, and program is selected camera and commander's shooting immediately according to the code of appointment, and transmission and memory image.If automatically-and the not change of manual state sign, program will wait for that next signal or the system of manually taking exits command.Repeatedly the difference of screening-mode and single pattern is, takes order for one and will cause that (for example 5 to 10 are specified by the user) take continuously, and then send view data to computing machine together for several.This pattern is applicable to that a large amount of objects constantly enter the situation of photographed scene.
Can introduce video monitor in the system, it can provide conventional video dynamic menu.The user can insert video tape recorder, works as routine video surveillance.Its effect mainly is to install and debugging is provided convenience and on-the-spot sight is provided when needing artificial the supervision for system in native system.
Fig. 3 is the details block diagram of sensor, and when mobile object entered the scene, sensing element promptly provided signal.This signal forms steering logic through amplifying shaping with manual control signal.This logical signal is latched, and can detect by the computing machine communication port.
Branch's serial line interface defines according to serial communication interface RS232C standard, if the wiring distance between controlled camera and the computing machine surpasses 15 meters, and the then additional interface convertor that uses.
Fig. 4 is a control enclosure panel synoptic diagram, if having only a controlled camera in the system, does not then have the scene selector switch.
System controlling software guarantees the above-described control function of realization, and has user-friendly interface, guarantees operation easily.The picture browsing process software makes the user can search the target of hope easily.The basic function of image processing software is to realize that image amplifies and image data interface, makes and can image be carried out various processing and be suitable for transmission according to customer requirements.
The present invention and existing (video) surveillance are compared, and the major advantage of computer control digital monitor system is:
(1) can provide high-resolution recording image, these characteristics will be brought reality for surveillance The progress of matter is so that monitor log can play more effective work aspect social public security With. Resolution ratio increase substantially so that the supervision of carrying out the large scene scope with individual system become can Energy. And might greatly expand the application of surveillance.
(2) hard-disk capacity of computer, with the location mode of visual format, and existing height Effect digital image compression technology is so that new system can record very a large amount of scenes. The computer picture Search method makes it possible to search object rapidly from a large amount of scenes. Video monitoring system will be remembered Record so a large amount of scene and need to use many dish recording tapes. And to from these tapes, search object The work of wasting time and energy very much.
(3) the digital high-resolution image that records is adapted to pass through computer network and carries out undistorted Teletransmission. The record of analog surveillance must be converted to digital video just can reach similar order . And the analog-digital conversion meeting brings image further to degrade. The digital image recording pattern is so that existing Many technology of processing for image can incorporate easily, for example the Intelligent Recognition of people's face and car plate. Very difficult and will do these work based on videograph.
Claims (9)
1, a kind of microcomputer controlled digital monitor system comprises digital camera, computing machine and interface circuit; It is characterized in that, comprising:
One computing machine is used for management system, controls camera, deposits image and picture browsing, and this computing machine links to each other with digital camera, sensor and steering logic generative circuit, system control box by serial line interface;
Digital camera is used to obtain image, and digital camera links to each other with computing machine by serial line interface; The digital camera that video output is arranged, its video output is transferred to video monitor by system control box;
Sensor and steering logic generative circuit, being used for the perception moving target enters photographed scene and steering logic is provided, every digital camera has a cover corresponding sensor and a steering logic generative circuit, and the output of steering logic generative circuit links to each other with computing machine by serial line interface;
System control box is used to provide the manual control order, and it links to each other with the steering logic generative circuit, and links to each other with computing machine by serial line interface; When containing video monitor in the microcomputer controlled digital monitor system, system control box provides the video adapting of digital camera and video monitor;
Interface-multiplex circuit is used to connect computing machine, digital camera, sensor and steering logic generative circuit, system control box;
Video monitor, the system Installation and Debugging of being used to are provided convenience and artificial the supervision, and it selects to accept the vision signal of a digital camera by system control box.
2, microcomputer controlled digital monitor system according to claim 1 is characterized in that, wherein microcomputer controlled digital monitor system allows to contain one or more digital camera.
3, microcomputer controlled digital monitor system according to claim 1 is characterized in that, wherein sensor and steering logic generative circuit, and it produces former automatic or manual logical signal of control camera.
4, microcomputer controlled digital monitor system according to claim 1 is characterized in that, wherein system control box it be independent of keyboard, the manual control order is provided, implement video adapting.
5, a kind of microcomputer controlled digital monitor system comprises digital camera, computing machine and interface circuit; It is characterized in that, comprising:
One computing machine is used for management system, controls camera, deposits image and picture browsing, and this computing machine links to each other with digital camera, sensor and steering logic generative circuit, system control box by serial line interface;
Digital camera is used to obtain image, and digital camera links to each other with computing machine by serial line interface;
Sensor and steering logic generative circuit, being used for the perception moving target enters photographed scene and steering logic is provided, every digital camera has a cover corresponding sensor and a steering logic generative circuit, and the output of steering logic generative circuit links to each other with computing machine by serial line interface;
System control box is used to provide the manual control order, and it links to each other with the steering logic generative circuit, and links to each other with computing machine by serial line interface;
Interface-multiplex circuit is used to connect computing machine, digital camera, sensor and steering logic generative circuit, system control box.
6, microcomputer controlled digital monitor system according to claim 5 is characterized in that, wherein microcomputer controlled digital monitor system allows to contain one or more digital camera.
7, microcomputer controlled digital monitor system according to claim 5 is characterized in that, wherein sensor and steering logic generative circuit, and it produces former automatic or manual logical signal of control camera.
8, microcomputer controlled digital monitor system according to claim 5 is characterized in that, wherein system control box it be independent of keyboard, the manual control order is provided.
9, a kind of method of microcomputer controlled digital monitor system is characterized in that, this method is:
Realize system management and control with computer program;
The computing machine follow procedure carries out initialization by communication interface logarithmic code camera running parameter and data transfer rate;
Manual control order on the computer interpretation control enclosure is used for the execution of control program; These orders comprise: automatically-and the manual state selection; Manually single-repeatedly model selection; Manually scene (camera) is selected;
When auto state, sensor and steering logic signal on the computing machine follow procedure tested in sequence communication port, the control camera takes and view data shifts to hard disc of computer;
When manual state, computer program utilizes single-repeatedly model selection and scene (camera) selection control code realization scene (camera) selection, takes control and view data transfer;
The image that digital camera generates deposits hard disc of computer with the form of data file in through communication port, by filename document image shooting time (moon, day, time, minute, second);
Special-purpose Photo Browser allows the operator to key in the zero-time of browsing, and order is fast browsing in groups, and every frame is browsed picture can select only to contain 1 width of cloth or several (for example 2 to 48 width of cloth) pictures.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99126617 CN1300981A (en) | 1999-12-22 | 1999-12-22 | Microcomputer controlled digital monitor system and method |
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| CN 99126617 CN1300981A (en) | 1999-12-22 | 1999-12-22 | Microcomputer controlled digital monitor system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315036C (en) * | 2004-06-01 | 2007-05-09 | 联想(北京)有限公司 | Portable equipment video switching equipment and switching method thereof |
| CN100414973C (en) * | 2005-04-06 | 2008-08-27 | 阿尔卡特公司 | Object perception method and a related perceiving device |
| CN101310521B (en) * | 2005-11-16 | 2011-03-09 | 索尼爱立信移动通讯股份有限公司 | Remote control image captioning device and method |
-
1999
- 1999-12-22 CN CN 99126617 patent/CN1300981A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315036C (en) * | 2004-06-01 | 2007-05-09 | 联想(北京)有限公司 | Portable equipment video switching equipment and switching method thereof |
| CN100414973C (en) * | 2005-04-06 | 2008-08-27 | 阿尔卡特公司 | Object perception method and a related perceiving device |
| CN101310521B (en) * | 2005-11-16 | 2011-03-09 | 索尼爱立信移动通讯股份有限公司 | Remote control image captioning device and method |
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