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70results about How to "Improve generality" patented technology

Calibration method for underwater binocular vision measurement system

The invention belongs to the technical field of underwater detection and measurement, aiming at solving the problem that the existing underwater binocular vision measurement system does not have generality and cannot be applied to the occasions with high precision, so that all underwater detection and measurement requirements can not be met. For this purpose, the invention provides a calibration method for an underwater binocular vision measurement system, which calibrates a binocular camera in air to obtain an internal parameter matrix and distortion parameters. The image of checkerboard gridis taken by binocular camera under water and distortion correction is carried out. Corner points of checkerboard grid are detected and position coordinates of corner points are measured by refractionrelation under water. According to the relative positional relationship between the corners of the checkerboard, the optimization objective is designed, and the calibration of the underwater binocular vision measurement system is completed by multi-objective optimization. The invention can improve the measurement accuracy of the underwater binocular vision measurement system, enable it to meet the requirements of the occasions with higher accuracy, improve the generality of the underwater binocular vision measurement system, and meet all underwater detection and measurement requirements.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Movable type safety inspection device based on X-ray

The invention provides a movable type safety inspection device based on X-ray. The movable type safety inspection device based on the X-ray comprises a ray launcher and a ray receiving device. The ray launcher and the ray receiving device are fixedly arranged at two ends of a source detecting frame respectively. A sliding block is fixedly arranged at the bottom end of the source detecting frame. The sliding block is matched with a guide rail which is fixedly arranged at the upper end of a base to slide. The source detecting frame is driven by a transmission mechanism and conducts reciprocating motion along the guide rail through the sliding block. The transmission mechanism is fixedly arranged on the base. The source detecting frame which is provided with the ray launcher and the ray receiving device conducts wholly and transversely reciprocating motion in hidden space which is formed by an inner frame and an outer frame to achieve the detection to people and objects. The safety inspection device is driven through the transmission mechanism, reciprocating type moving scanning imaging detection is achieved, the result of the detection is improved, and the device is high in invisibility and strong in operability.
Owner:ANHUI QILOOTECH PHOTOELECTRIC TECH

Flush type toilet bowl and developed portable toilet thereof

The invention claims a flush type toilet bowl, comprising a toilet bowl provided with a toilet inlay therein, wherein an elastic ring, a clamping ring and a J-shaped sealing ring are arranged under the toilet bowl drainage hose in sequence, and a nut is further equipped for sealing the end faces of the toilet bowl and the toilet inlay; the toilet bowl is provided with a cavity for containing the clean water and a double water spray jets extended out from the water-jet nozzle; the cavity is provided with a hose connected with the four-way valve, the water-jet nozzle and the hand-pressed air pump, next to the air pump is a button swith which you can flush the toilets by pressing it easily. The invention is developed as the gravity flush portable toilet and the cassette portable toilet by using the flush type toilet bowl as the basic universal part, thereby being used on the caravans. The cassette toilet is provided with the waste level indicator, the sealing valve and the handle performing perfect use under the condition without water and electricity. The toilet bowl and the developed toilet thereof in the invention can be interchanged excellently and cleaned or flushed conveniently without outside water source, furthermore, the invention is excellent in rigidity, impact resistance and tightness.
Owner:QINGDAO CHUANGHUI IND CO LTD
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