CN102654938A - Power drive method for surveillance camera - Google Patents
Power drive method for surveillance camera Download PDFInfo
- Publication number
- CN102654938A CN102654938A CN2011103771799A CN201110377179A CN102654938A CN 102654938 A CN102654938 A CN 102654938A CN 2011103771799 A CN2011103771799 A CN 2011103771799A CN 201110377179 A CN201110377179 A CN 201110377179A CN 102654938 A CN102654938 A CN 102654938A
- Authority
- CN
- China
- Prior art keywords
- vertical blank
- surveillance camera
- output
- stepping motor
- monitoring camera
- 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.)
- Pending
Links
Abstract
The invention discloses a power drive method for a surveillance camera. Starting from a video signal of a video recording surveillance area, the surveillance camera detects out a vertical blank region, intermittently outputs a stepping motor drive pulse in the detected vertical blank region, sets an attenuation region from the end of detecting the vertical blank region to a start view point of the following vertical blank region, refuses to output the drive pulse in the attenuation region, and outputs the drive pulse according to a certain VD (Video) signal output corresponding to the vertical blank region. The method is reasonably designed, the surveillance camera is driven by the stepping motor, and when the stepping motor of the surveillance camera is driven, the stepping motor drive pulse is only output in the vertical blank region of the video signal, so that the video signal output by the surveillance camera cannot contain noise, the quality of the video signal and images output by the surveillance camera is improved, and users can obtain clear video images.
Description
Technical field
The present invention relates to the driving method of monitoring camera, particularly use the driving method of the monitoring camera of stepping motor.
Background technology
Monitoring camera comprises lens section, wave filter, drive division, digital signal processor, microcomputer etc. as existing; Microcomputer is set at daytime or Night according to the brightness of image with the image pickup mode of monitoring camera, and microcomputer is through the certain driving pulse of drive division motor output.Driving pulse makes a noise, and influences the video signal quality of monitoring camera output and the quality of monitoring image.
Summary of the invention
The object of the invention is exactly the deficiency that exists to above-mentioned prior art, and the vision signal that provides a kind of monitoring camera to export does not comprise the power drive method of the monitoring camera of noise.
The objective of the invention is to realize like this; The power drive method of monitoring camera; It is characterized in that; Monitoring camera begins to detect the vertical blank interval from the vision signal in monitoring camera-shooting zone, in the above-mentioned vertical blank interval that detects, carries out intermittence output stepping motor driving pulse, detects the vertical blank interval and begins later on till the beginning viewpoint in following vertical blank interval, to be set between the decay area; And the above-mentioned driving pulse of output in not between this decay area, foundation is exported said driving pulse with certain VD signal of the interval corresponding output of above-mentioned vertical blank.
The present invention is reasonable in design, and method is easy.It is power that monitoring camera adopts stepping motor; When driving the stepping motor of monitoring camera; Only in the vertical blank interval of vision signal, export the stepping motor driving pulse; So can not comprise noise in the vision signal of monitoring camera output, thereby improve the vision signal of monitoring camera output and the quality of image.
Embodiment
Further carry out detailed explanation in the face of the present invention down.
Monitoring camera comprise lens section, daytime and night module, drive division, signal processor, timing pulse generator, microprocessor, signal processor, the digital video signal of input begins to detect the vertical blank interval certainly, to microprocessor signal is provided simultaneously.In the vertical blank interval that detects, carry out intermittence output stepping motor driving pulse; Detecting the vertical blank interval begins later on till the beginning viewpoint in following vertical blank interval, to be set between the decay area; And the above-mentioned driving pulse of output in not between this decay area, foundation is exported said driving pulse with certain VD signal of the interval corresponding output of above-mentioned vertical blank.Therefore, stepping motor drives the noise that causes, the only progressive direct motor drive pulse of output in the vertical blank interval of vision signal.Improve the video signal quality of monitoring camera output and the quality of monitoring image.
Claims (1)
1. the power drive method of a monitoring camera; It is characterized in that; Monitoring camera begins to detect the vertical blank interval from the vision signal in monitoring camera-shooting zone; In the above-mentioned vertical blank interval that detects, carry out intermittence output stepping motor driving pulse; Detect the vertical blank interval and begin later on till the beginning viewpoint in following vertical blank interval, to be set between the decay area, and the above-mentioned driving pulse of output in not between this decay area, foundation is exported said driving pulse with certain VD signal of the interval corresponding output of above-mentioned vertical blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103771799A CN102654938A (en) | 2011-11-24 | 2011-11-24 | Power drive method for surveillance camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103771799A CN102654938A (en) | 2011-11-24 | 2011-11-24 | Power drive method for surveillance camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102654938A true CN102654938A (en) | 2012-09-05 |
Family
ID=46730561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103771799A Pending CN102654938A (en) | 2011-11-24 | 2011-11-24 | Power drive method for surveillance camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102654938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407890A (en) * | 2018-07-27 | 2019-03-01 | 友达光电股份有限公司 | Touch display device and touch wake-up signal generation method thereof |
-
2011
- 2011-11-24 CN CN2011103771799A patent/CN102654938A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407890A (en) * | 2018-07-27 | 2019-03-01 | 友达光电股份有限公司 | Touch display device and touch wake-up signal generation method thereof |
| CN109407890B (en) * | 2018-07-27 | 2022-02-08 | 友达光电股份有限公司 | Touch display device and touch wake-up signal generation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1171442C (en) | Electronic image searching device | |
| CN206023944U (en) | Image vehicle-running recording system before and after vehicle-mounted | |
| EP1906657A3 (en) | Image-capturing device | |
| JP2007161189A (en) | On-vehicle camera and drive recorder | |
| JP2013114260A5 (en) | ||
| CN218675449U (en) | Focusing device of security monitoring lens | |
| CN102654938A (en) | Power drive method for surveillance camera | |
| CN102161306A (en) | Automobile sunshading board with function of automatically adjusting light transmittance | |
| CN202068490U (en) | Automatic tracking device based on passive type infrared induction | |
| US8159533B2 (en) | Surveillance camera capable of recording color or monochrome images based on time settings | |
| CN205451210U (en) | Car panorama recording system and car | |
| WO2015050908A3 (en) | Endoscope illumination system | |
| EP2482545A3 (en) | An imaging apparatus, an imaging system, and a driving method of an imaging apparatus | |
| CN201600544U (en) | Automatic focusing system of projector | |
| CN203811964U (en) | An electromagnetic drive optical filter switching device | |
| JP2010154433A (en) | In-vehicle camera and drive recorder employing same | |
| CN104469116A (en) | Star level bayonet all-in-one machine | |
| CN202309897U (en) | Video camera of rotary panoramic image pickup monitoring device | |
| JP2005271836A (en) | Auxiliary lighting system for car-mounted camera | |
| CN209795331U (en) | Automobile rearview mirror with monitoring function | |
| CN206097219U (en) | Multifunctional driving recorder | |
| CN201677811U (en) | Improved rear view mirror structure | |
| US8577080B2 (en) | Object contour detection device and method | |
| CN206533480U (en) | A kind of improved equipment monitoring system | |
| CN106815892A (en) | A kind of novel rear view mirror drive recorder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120905 |