Infrared high speed ball and method for intelligently adjusting brightness of infrared lamp by infrared high speed ball
A technology of intelligent adjustment and high-speed ball, which is applied in the direction of electric lamp circuit layout, energy-saving control technology, color TV parts, etc., and can solve the problems of whitening images and inability to obtain clear images, etc.
Inactive Publication Date: 2011-11-23
JIANGSU PROTRULY VISION TECH GRP CO LTD
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[0005] When the security system is working, when the ambient brightness is not very low or the subject is close, if the brightness of the infrared light is too high, it will directly affect the overexposure of the camera, resulting in a white image and unable to get a clear image
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[0030] The present invention provides an infrared high-speed dome and a method for intelligently adjusting the brightness of the infrared lamp. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0031] see figure 2 with image 3 , The infrared high-speed dome provided by the embodiment of the present invention includes a camera module 11 , a photosensitive module 21 , an LED lamp group 31 , an LED driver module 41 and a main controller 51 . The LED lamp group 31 is connected to the PWM output port of the main controller 51 through the LED driver module 41 , the camera module 11 is connected to the serial interface of the main controller 51 , and the...
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The invention discloses an infrared high speed ball and a method for intelligently adjusting brightness of an infrared lamp by the infrared high speed ball. The infrared high speed ball comprises: an image pickup module group, an LED lamp bank, a photosensitive module group, an LED driving module, and a main controller, wherein the main controller that is used for outputting corresponding a PWM signal according to ambient brightness obtained by the photosensitive module group and enabling the LED driving module to output corresponding currents. The LED lamp bank is connected with a PWM output port of the main controller by the LED driving module; and the photosensitive module group and the image pickup module group are respectively connected with the main controller. According to the invention, real-time induction is carried out on changes of the ambient brightness with utilization of the photosensitive module group; an optical signal is converted into a corresponding electrical signal; and thus the main controller can change a PWM waveform to control an output current of the LED driving module, thereby adjusting brightness of the infrared lamp. Meanwhile, the main controller reads a brightness value of the image pickup module group and determines whether a video image obtained by the image pickup module group is overexposed or not, so that the brightness of the infrared lamp can be adjusted finely; and consequently, the image pickup module group can shoot a clear image.
Description
technical field [0001] The invention relates to the field of security video monitoring, in particular to an infrared high-speed ball and a method for intelligently adjusting the brightness of an infrared lamp. Background technique [0002] With the rapid development of social economy and electronic technology, people's safety awareness is also increasing, and the security monitoring market has entered a stage of rapid development. In stations, hotels, leisure and entertainment places, tourist attractions, squares and streets, it has become a place for security monitoring. Main application places. [0003] The security monitoring system requires full monitoring during the day and night, so the infrared high-speed ball has been widely used in the security field. The infrared high-speed ball generally includes a camera and its photosensitive element, an infrared lamp, a dome cover, a rotating device and an infrared lamp control circuit. At present, infrared high-speed balls g...
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IPC IPC(8): H04N5/33H05B37/02
CPCY02B20/48Y02B20/40
Inventor 庄敏鹿鹏
Owner JIANGSU PROTRULY VISION TECH GRP CO LTD