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1. 发明授权

US11290653B1 Method for controlling optical sensing circuit, optical sensing circuit, and imaging device 有权
公开(公告)号：US11290653B1
公开(公告)日：2022-03-29
申请号：US17469923
申请日：2021-09-09
申请人： Shenzhen Reolink Technology Co., Ltd.
发明人： Lei Tang , Yulong Que
IPC分类号： H04N5/235 , H05B47/14 , G01J1/44
摘要： This application discloses a method for controlling an optical sensing circuit, an optical sensing circuit, and an imaging device. The optical sensing circuit includes an optical sensor and a voltage dividing circuit connected in series, an input voltage (a voltage of the voltage dividing circuit) and an output voltage are obtained, a resistance value of the optical sensor is calculated according to the input voltage, a light intensity value is obtained according to the resistance value of the optical sensor, and then, different loads are controlled based on a level of the output voltage for light intensity in different ranges to perform corresponding operations. This application has high flexibility and strong adaptability, and can effectively broaden an application scope of a photosensitive device.

2. 发明授权

US11519995B1 Range-finding method, range-finding apparatus, terminal system, and computer-readable storage medium 有权
公开(公告)号：US11519995B1
公开(公告)日：2022-12-06
申请号：US17692098
申请日：2022-03-10
申请人： Shenzhen Reolink Technology Co., Ltd.
发明人： Sheng Yong , Rui Zhou , Xiaoyu Liu , Yulong Que
IPC分类号： G01S1/04
摘要： A range-finding method, a apparatus, a terminal system, and a computer-readable storage medium are provided. The range-finding method includes: transmitting a first check code from a transmitting terminal to a receiving terminal by using a first communication technology; transmitting a modulated signal from the transmitting terminal to the receiving terminal by using a second communication technology different from the first communication technology, where the modulated signal carries a second check code; acquiring a first moment at which the modulated signal is transmitted and a second moment at which the modulated signal is received; demodulating the second check code in the modulated signal; acquiring a range-finding confidence according to the first check code and the demodulated second check code; and acquiring a measured distance between the transmitting terminal and the receiving terminal according to the first moment, the second moment, a transmission speed of the modulated signal, and the range-finding confidence.

3. 发明授权

US11295454B1 Object detection method, security device, and readable storage medium 有权
公开(公告)号：US11295454B1
公开(公告)日：2022-04-05
申请号：US17462008
申请日：2021-08-31
申请人： Shenzhen Reolink Technology Co., Ltd.
发明人： Zhiqiang Xie , Yulong Que
IPC分类号： G06T7/20 , G06K9/62 , G06T7/70 , G06T7/00
摘要： This application discloses an object detection method, a security device, and a readable storage medium. The object detection method includes: obtaining a plurality of first frames acquired by imaging an object within a first period of time; obtaining a plurality of second frames acquired by imaging the object within a second period of time, where an end time of the first period of time is a start time of the second period of time; comparing each of the second frames with the plurality of first frames one by one to determine whether a position variation of the object between the second frame and the first frame is less than a first preset threshold; if it is determined that the position variation of the object is less than the first preset threshold, increasing a count by one (1) and obtaining a total count after comparison with the plurality of second frames is completed; determining whether the total count reaches a second preset threshold; and if the total count reaches the second preset threshold, determining that the object is stationary; or if the total count does not reach the second preset threshold, determining that the object is moving. This application improves accuracy of a detection method such as an AI detection method in detecting a state of a stationary object and reduces false alarms.

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