Apparatus and method for acquiring exposure time for automatic driving system
A technology for exposure time and acquisition devices, which is applied to the parts of TV systems, parts of color TVs, TVs, etc., can solve problems such as errors, lack of absolute clocks, affecting system accuracy and security, and eliminate Effects of systematic error, enhanced precision and safety
Active Publication Date: 2021-06-08
SUZHOU ZHIJIA SCI & TECH CO LTD
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Problems solved by technology
But for cameras, currently widely used devices do not have absolute clocks, and exposure time cannot be obtained from image information
At present, in almost all automatic driving systems, the delay of image information has to be ignored, and the time when the main computing unit receives the image information is used as the exposure time of the camera, which introduces inevitable errors into the system and affects the System accuracy and security
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[0059] A detailed summary and technical description of the present invention is now further illustrated by a preferred embodiment, but is not to be construed as limiting the embodiments of the present invention.
[0060] Please refer to figure 1 , figure 1 A structural diagram of an exposure time acquisition device of the present invention. Such as figure 1 As shown, the exposure time acquisition device of the present invention includes: the GPS receiver 11, the calculation unit 12, and the image acquisition unit 13; the GPS receiver 11 is used to output the first signal and the second signal; the calculation unit 12 is electrically connected to the The GPS receiver 11, the calculation unit 12 synchronizes the own clock according to the first signal; the image acquisition unit 13 is electrically connected to the GPS receiver 11 and the calculation unit 12, the image acquisition unit 13 according to The second signal performs exposure imaging obtaining image data, the computing uni...
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The invention discloses an exposure time acquisition device and method for an automatic driving system. The exposure time acquisition device includes: a GPS receiver, a calculation unit, and an image acquisition unit; the GPS receiver is used to output a first signal and a second signal; The calculation unit is electrically connected to the GPS receiver, and the calculation unit synchronizes its own clock according to the first signal; the image acquisition unit is electrically connected to the GPS receiver and the calculation unit, and the image acquisition unit performs exposure imaging according to the second signal to obtain image data, The calculation unit receives and processes the image data to obtain the exposure time of the image acquisition unit.
Description
Technical field [0001] The present invention relates to an exposure time acquisition apparatus and method, and more particularly to an exposure time acquisition apparatus and method for an automatic driving system. Background technique [0002] At present, in the current automatic driving system, the camera is used as a low cost, high reliability, and can obtain a sensor that enriches textured information, and is widely used in the automatic driving perception module. In order to make the automatic driving perception module more accurate, robust, except for the camera, other sensors are often required for GPS, millimeter wave radar, laser radar and other sensors to supplement. At this time, in order to integrate different sensors perceived data, it is necessary to accurately synchronize each sensor, and obtain the accurate time of the data obtained by the sensor. Otherwise, if the sensor perceived data in different times, the additional error can cause additional errors, affect t...
Claims
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IPC IPC(8): H04N5/235
CPCH04N23/73
Inventor 王文斌韩坪良杨帆江頔王超
Owner SUZHOU ZHIJIA SCI & TECH CO LTD