CN108156430B - Guard zone projection camera and video recording method - Google Patents
Guard zone projection camera and video recording method Download PDFInfo
- Publication number
- CN108156430B CN108156430B CN201810153364.1A CN201810153364A CN108156430B CN 108156430 B CN108156430 B CN 108156430B CN 201810153364 A CN201810153364 A CN 201810153364A CN 108156430 B CN108156430 B CN 108156430B
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- camera
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- warning area
- adjusting
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 38
- 230000000007 visual effect Effects 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims description 15
- 238000003384 imaging method Methods 0.000 claims description 3
- 238000010191 image analysis Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000006399 behavior Effects 0.000 description 7
- 238000012937 correction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Closed-Circuit Television Systems (AREA)
- Studio Devices (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention provides a warning area projection camera and a video recording method, and relates to the technical field of cameras, wherein the warning area projection camera comprises: the camera module is used for collecting image information in a monitoring view; and the projection module is used for projecting the warning area image to the field corresponding to the monitoring field. The warning area projection camera disclosed by the invention can project the marked image in the visual field of the camera to form the warning area, realizes active intervention on the monitoring area, has a warning effect, can remind a principal that the principal has entered the monitoring area, and is beneficial to protecting the privacy of the principal.
Description
Technical Field
The invention relates to the technical field of monitoring equipment, in particular to a warning area projection camera and a video recording method.
Background
The existing video camera (monitoring ball machine) can only realize unidirectional video and audio acquisition functions generally, but cannot interfere illegal behaviors in a monitoring area, and can only carry out evidence collection and investigation after hazard occurs. In addition, the personal privacy protection of the current masses is becoming more and more conscious, and warning marks like "you have entered a monitoring area" or warning lines are painted on the ground in the monitoring system to prevent the privacy of citizens from being violated, but the warning marks are easily ignored, and the warning lines cannot clearly mark the monitoring field (especially cannot well identify the monitoring field in continuous change). Therefore, how to make the camera have more obvious and comprehensive prompt means and even have the capability of actively intervening in monitoring the events in the field of view is a technical problem to be solved.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art or related technologies, and discloses a warning area projection camera and a video recording method, which can more clearly and flexibly indicate the existence of monitoring equipment or actively intervene in an event in a monitored area, and clearly warn illegal personnel to correct behaviors and prevent the occurrence of illegal behaviors.
The invention is realized by the following technical scheme:
the first aspect of the invention discloses a warning area projection camera, comprising: the camera module is used for collecting image information in a monitoring view; and the projection module is used for projecting the warning area image to the field corresponding to the monitoring field.
According to the warning area projection camera provided by the invention, preferably, the projection module comprises a laser emitter, a galvanometer and a galvanometer controller; the galvanometer controller is used for adjusting the galvanometer to enable the laser beam emitted by the laser emitter to pass through the galvanometer and then form an image of a warning area in a monitored scene.
According to the warning area projection camera provided by the invention, preferably, the camera module is a monitoring dome camera.
The guard zone projection camera provided according to the present invention preferably further comprises: the camera holder is used for adjusting the posture of the camera module so as to adjust the monitoring field of view.
According to the surveillance camera provided by the invention, preferably, the surveillance image includes: one or more of wire frame graphics, images, and text.
According to the guard zone projection camera provided by the invention, preferably, the camera module and the projection module are both arranged on the camera holder, and the lens center of the camera module and the light-emitting center of the projection module are positioned on the same horizontal line or vertical line.
The second aspect of the present invention discloses a video recording method, comprising: collecting image information in a monitoring view; and projecting an image of the warning area to a field corresponding to the monitoring field.
According to the video recording method provided by the invention, preferably, the video recording method further comprises the following steps: according to the received adjustment instruction, adjusting the size or shape of the warning area image; or adjusting the size or shape of the warning area image according to the change of the monitoring visual field; wherein monitoring the change in field of view includes adjusting a change in field of view caused by the viewing angle or adjusting a change in field of view caused by the focal length of the camera.
According to the video recording method provided by the invention, preferably, the video recording method further comprises the following steps: and analyzing the image information, and if a moving object or a preset image is found, changing the display content of the warning region image.
According to the video recording method provided by the invention, preferably, the video recording method further comprises the following steps: and opening, closing or flashing the warning region image according to the received switching instruction.
According to the video recording method provided by the invention, preferably, the video recording method further comprises the following steps: and controlling the rotation of the camera holder so that the projection module changes the imaging position of the warning area image along with the rotation of the camera holder.
The beneficial effects obtained by the invention are as follows: the camera has the capability of actively intervening in the event in the monitoring range through the projection module, so that the existence of the monitoring equipment can be clearly indicated, and the behavior correction can be carried out by warning illegal personnel through projection of the warning area, thereby preventing the illegal behavior.
Drawings
Fig. 1 shows a schematic diagram of an application of a surveillance zone projection camera according to an embodiment of the invention.
Fig. 2 shows a modular schematic view of a surveillance zone projection camera according to an embodiment of the invention.
Fig. 3 shows a schematic flow chart of a video recording method according to an embodiment of the invention.
Fig. 4 shows a schematic flow chart of another embodiment of a video recording method according to an embodiment of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the warning area projection camera provided by the present invention includes: the system comprises a camera module for collecting image information in a monitoring field of view and a projection module for projecting an image of a warning area to a field corresponding to the monitoring field of view. Specifically, the projection module comprises a laser emitter, a galvanometer and a galvanometer controller; the galvanometer controller is used for adjusting the galvanometer to enable the laser beam emitted by the laser emitter to pass through the galvanometer and then form an image of a warning area in a monitored scene.
Preferably, the camera module is a surveillance dome camera.
Preferably, the pan-tilt is used to adjust the pose of the camera module to adjust the surveillance field of view.
Preferably, the warning area image includes: one or more of wire frame graphics, images, and text.
Preferably, the camera module and the projection module are both installed on the cradle head, and the lens center of the camera module and the light emitting center of the projection module are located on the same horizontal line or vertical line.
As shown in fig. 2, the projection camera of the warning area disclosed by the invention is controlled by a microprocessor to collect images through a camera, and process the collected images (including image analysis and image coding output), and the microprocessor is connected to a control galvanometer controller for adjusting the galvanometer state so that laser emitted by a laser emitter forms a warning area image in a monitored scene through a galvanometer.
As shown in fig. 3, the present invention further provides a video recording method, including:
step 302, collecting image information in a monitoring field of view;
step 304, projecting an alert zone image to a field corresponding to the monitored field of view.
As shown in fig. 4, the video recording method of the present invention specifically includes:
step 402, collecting image information in a monitoring field of view;
step 404, projecting an alert area image to a field corresponding to the monitoring field;
step 406, adjusting the size or shape of the warning region image according to the received adjustment instruction; or adjusting the size or shape of the warning area image according to the change of the monitoring visual field;
wherein, the monitoring of the change in the field of view comprises adjusting the change in the field of view caused by the viewing angle or adjusting the change in the field of view caused by the focal length of the camera;
step 408, controlling the rotation of the camera holder so that the projection module follows the rotation of the camera holder to change the imaging position of the warning area image;
step 410, analyzing the image information, and if a moving object or a preset image is found, changing the display content of the warning area image;
step 412, turning on, off or flashing the warning area image according to the received switching instruction.
According to the guard zone projection camera and the video recording method disclosed by the invention, the camera has the capability of actively intervening in the event in the monitoring range through the projection module, so that the existence of monitoring equipment can be clearly shown, and illegal personnel can be warned to conduct behavior correction through the projection of the guard zone, thereby preventing illegal behaviors.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A surveillance zone projection camera, comprising:
the camera module is used for collecting image information in a monitoring view;
the projection module comprises a laser emitter, a galvanometer and a galvanometer controller and is used for projecting an image of a warning area to a field corresponding to the monitoring visual field;
the microprocessor is connected with the galvanometer controller and is used for controlling the image acquisition through the camera, carrying out image processing on the acquired image, adjusting the galvanometer state according to the image processing result, and changing the display content of the warning area image if a moving object or a preset image is found;
the camera cloud platform is used for adjusting the posture of the camera module so as to adjust the monitoring visual field, the camera module and the projection module are both arranged on the camera cloud platform, and the center of a lens of the camera module and the light-emitting center of the projection module are positioned on the same horizontal line or the same vertical line;
the galvanometer controller is used for adjusting the galvanometer so that the laser beam emitted by the laser emitter passes through the galvanometer and forms the warning area image in the monitored scene.
2. The surveillance projector of claim 1, wherein the surveillance image comprises: one or more of wire frame graphics, images, and text.
3. A video recording method applied to the surveillance zone projection camera of claim 1 or 2, comprising:
collecting image information in a monitoring view;
projecting an alert zone image to a field corresponding to the monitored field of view;
according to the received adjustment instruction, adjusting the size or shape of the warning area image; or adjusting the size or shape of the warning area image according to the change of the monitoring visual field, wherein the change of the monitoring visual field comprises the change of the visual field caused by adjusting the view finding visual angle or the change of the visual field caused by adjusting the focal length of the camera;
and changing the display content of the warning region image according to the image analysis result.
4. The recording method as set forth in claim 3, further comprising: and opening, closing or flashing the warning region image according to the received switching instruction.
5. The recording method as set forth in claim 3, further comprising: and controlling the camera holder to rotate, and enabling the projection module to rotate along with the camera holder so as to change the imaging position of the warning area image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810153364.1A CN108156430B (en) | 2018-02-22 | 2018-02-22 | Guard zone projection camera and video recording method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810153364.1A CN108156430B (en) | 2018-02-22 | 2018-02-22 | Guard zone projection camera and video recording method |
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| Publication Number | Publication Date |
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| CN108156430A CN108156430A (en) | 2018-06-12 |
| CN108156430B true CN108156430B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810153364.1A Active CN108156430B (en) | 2018-02-22 | 2018-02-22 | Guard zone projection camera and video recording method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109639944B (en) * | 2018-12-18 | 2020-08-04 | 吉林大学 | Farmland image acquisition device |
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| CN108156430A (en) | 2018-06-12 |
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Inventor after: Zhang Fan Inventor after: Wang Jingbin Inventor after: Qu Guanming Inventor after: Liu Zilong Inventor before: Zhang Fan |
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