Portable augmented reality ultraviolet imaging system

Abstract

The invention discloses a portable augmented reality ultraviolet imaging system. The ultraviolet light forms a multi-bit image through the image sensor, and the multi-bit image is binarized, and then the ultraviolet image is subjected to morphological and other digital signal processing and transmitted to the visible light camera, which performs lossless ultraviolet image compression and storage; visible light passes through the imaging module. Output high-definition visible light video images, and form three independent time stamp-based data in the visible light camera, namely ultraviolet images, visible light video images, and OSD text information, of which ultraviolet images and visible light video images can be scanned in real time. In the display stage, the panoramic ultraviolet image, the panoramic visible light image and the OSD text information are synchronously displayed by timestamp. The invention effectively expands the detection field of the instrument, realizes the discharge detection in augmented reality, enhances the intuitive and visualized fault location capability, and can also be linked with the power operation and maintenance platform by means of a mobile phone.

Description

technical field [0001] The invention belongs to the field of power system operation and maintenance monitoring, discharge detection and multi-spectral detection equipment, and in particular relates to a portable augmented reality ultraviolet imaging system. Background technique [0002] The basic principle of solar-blind ultraviolet detection is that the light in the 190-285nm band of the solar spectrum will be completely absorbed by the ozone layer during the process of passing through the atmosphere, and cannot be irradiated to the surface of the earth. Once the ultraviolet light in the sun-blind spectrum is detected, it can be determined that the ultraviolet light is produced by unnatural conditions such as human activities, such as gun fire, explosive explosion, fire and corona caused by high-voltage power line leakage. [0003] Equipment such as power transmission lines and substation power distribution work in an atmospheric environment. With the reduction of insulatio...

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Problems solved by technology

[0005] However, there are still many shortcomings in the above-mentioned ultraviolet imager.

First of all, the field of view of the ultraviolet channel is very small, for example (horizontal × vertical field of view: 6 degrees × 4.5 degrees) is inefficient, inconvenient, and poor usability in the use of power system detection, and it is difficult to determine the fault location, especially when the equipment similarity is very high For substation applications, ordinary ultraviolet equipment is prone to confusing positioning, and the usability is even worse; secondly, the visible light imaging sensor used is ordinary standard-definition CCD, which has low image resolution and lacks details in imaging; in addition, ultraviolet images lack effective digital signal processing, and the discrete noise Weak suppression and poor anti-interference are not conducive to maintenance personnel to determine the discharge intensity and location; the central processing unit of the industry's ultraviolet imager uses a programmable array, the processing unit consumes a lot of power, the package is large, and the final integrated ultraviolet imager is bulky Large size, short standby time, not conducive to portability for maintenance personnel, and not conducive to long-term detection in the field

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