Recording control method of each dynamic detection field
A technology of dynamic detection and control method, applied in the direction of closed-circuit television system, etc., can solve the problems of low recording, recording a small number of video frames, etc.
Inactive Publication Date: 2008-01-30
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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[0009] But as mentioned above, if all the same recording conditions are set for a plurality of dynamic detection fields (such as MZ1~MZ3), for example, if a high-resolution recording condition is set, the above-mentioned hard disk 33 will record high-resolution video frames , causing problems with recording a small number of video frames
On the contrary, if it is set to low-resolution recording conditions, the above-mentioned hard disk 33 will record a large number of video frames, but it will cause the problem of recording low-resolution video frames
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[0028] Embodiments of recording control methods in various dynamic detection fields of the present invention will be described in detail below with reference to the accompanying drawings.
[0029] FIG. 4 is an operation flowchart of the recording control method in each dynamic detection field of the present invention. The present invention can be applied to a digital video recorder 300 constructed as shown in FIG. 2 .
[0030] Step 10, for example, the above-mentioned microprocessor 36 sets a plurality of motion detection areas in the video frame of the surveillance image according to the user's request.
[0031] Step 11, at the same time, distinguish and set the conditional values of the above-mentioned dynamic detection fields with different values, as shown in Figure 5, for the first dynamic detection field (MZ1) with higher importance, set the recording condition of high resolution; for general For the second motion detection zone (MZ2) of importance, medium-resolution ...
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The invention relates to recording and controlling methods in various dynamic surveying fields. By taking the digital video recorder connecting monitoring cameras as an example, a plurality of dynamic surveying fields are set in a video frame of the monitoring images and recording conditional value is differentially set in various dynamic surveying fields. If the dynamic surveying detection happens in any dynamic surveying field, the monitoring images are recorded according to the recording conditional value differentially set by the relevant dynamic surveying fields. Therefore, when dynamic surveying happens in the monitoring images, the video frame of the monitoring images are differently recorded and controlled according to the dynamic surveying fields. The invention can record the monitoring images more effectively in such recording media as HDD.
Description
technical field [0001] The present invention relates to recording control methods in various motion detection fields, and in particular to a digital video recorder (DVR) connected to a monitoring camera (Camera). The recording control method for controlling each motion detection field of the video frame of the surveillance video may be recorded differently. Background technique [0002] FIG. 1 is a schematic diagram of an embodiment in which a general digital video recorder 300 is connected with a monitoring camera 100 and a sensor 200 . For example, the above-mentioned digital video recorder 300, as shown in Figure 2, includes an A / D converter 30, a digital signal processing unit (DSP) 31, an encoder 32, a hard disk (HDD) 33, a decoder 34, a motion detection Part 35, microprocessor 36, sensor detection part 37, etc. [0003] In addition, when the microprocessor 36 of the above-mentioned digital video recorder receives the monitoring video shot by the monitoring camera 100...
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IPC IPC(8): H04N7/18
Inventor 闵熙晶
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI