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Omnidirectional visual sensor based helmet

An omnidirectional vision and sensor technology, applied in helmets, helmet covers, CCTV systems, etc., can solve the problems of only obtaining front view images and poor real-time performance.

Inactive Publication Date: 2009-11-11
汤一平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of existing security monitoring helmets that can only acquire images from the front view angle and have poor real-time performance, the present invention provides a helmet based on an omnidirectional visual sensor that can acquire panoramic images and has good real-time performance.

Method used

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  • Omnidirectional visual sensor based helmet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] refer to Figure 1 to Figure 8 , a helmet based on an omnidirectional visual sensor, the helmet mainly completes two functions, the first is to obtain the omnidirectional image of the scene in real time; the second is to realize the wireless remote transmission of the omnidirectional image.

[0050] The real-time acquisition of the omnidirectional image of the scene is realized by the omnidirectional visual sensor, so firstly it is the manufacturing technical scheme of the optical part of the omnidirectional visual sensor (ODVS camera device), the omnidirectional visual sensor includes a vertically downward folding reflector, transparent cylinder, camera, fixed bracket, the catadioptric mirror is a hyperboloid mirror, the camera includes a condenser lens and a camera unit, and the camera unit is located at the virtual focus of the hyperboloid mirror position; the optical system formed by the hyperboloid mirror is represented by the following 5 equations;

[0051] ((X ...

Embodiment 2

[0081] refer to Figure 1 to Figure 9 , except for the wireless communication technology, the others are the same as in Embodiment 1. The wireless local area network communication technology in Embodiment 1 is applicable within the range of 100-200 meters, for example, wireless communication can be realized between the helmet and the fire engine. Need farther distance to realize wireless communication in some occasions, therefore set up a GPRS server at the video server end in the helmet among the present invention, set up a kind of high-speed CDMA wireless communication network that is suitable in small area. In the present invention, each helmet capable of wireless remote transmission of omnidirectional images is used as a wireless network terminal, Figure 9 Shown in 1, wherein the high-speed CDMA wireless communication network includes at least one CDMA base station ( Figure 9 2 in ) and several wireless network terminals (helmets) in its coverage area, it is characteri...

Embodiment 3

[0085] Except for the manufacturing technology of the omnidirectional vision sensor, the others are the same as the embodiment 1. The manufacturing material of the omnidirectional vision sensor in embodiment 1 basically adopts the material that can be used under the non-high temperature situation, for the special circumstances such as fire-fighting helmet, the manufacturing material of the omnidirectional vision sensor must adopt the material of high temperature resistance, so for For the helmet used for fire fighting, due to the high temperature at the fire scene, the transparent cover 2 will be deformed and damaged. The fixing bracket and the catadioptric mirror are connected by a metal rod. The centers of the metal rod, fixing bracket, and catadioptric mirror are all in one center. On the shaft, as long as the choice of thickness of the metal rod does not hinder the acquisition of panoramic images, the structure of the ODVS without a cover is as follows: figure 2 Shown; Of...

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Abstract

A helmet based on an omnidirectional visual sensor, comprising a helmet body, the helmet also includes an omnidirectional visual sensor mounted on the top of the helmet body, a microprocessor for receiving and processing video data from the omnidirectional visual sensor, the The omnidirectional vision sensor is connected with the microprocessor data, and the microprocessor includes: an image data reading module, which is used to read the video image information transmitted from the omnidirectional vision sensor; an image data file storage module, which is used to read the incoming The video image information is stored in the storage unit in the form of a file; the image expansion processing module is used to expand the read-in circular video image into perspective video images divided by the front view angle, the rear view angle, the left view angle and the right view angle. The invention can acquire panoramic images and has good real-time performance.

Description

(1) Technical field [0001] The invention belongs to the application of optical technology, computer image processing technology and network communication technology in safety monitoring, and belongs to the protection product of on-site monitoring system, especially suitable for fire fighting, public security police, frontier police, sea police, forest police, mine exploration, Safety monitoring for special occasions such as flood control and disaster prevention command, especially a helmet for safety monitoring. (2) Background technology [0002] At present, in some fields that require on-site safety monitoring devices, people have adopted helmets with camera transmitters, so that in some special industries, such as banking systems, fire protection, flood prevention and disaster prevention, production and construction, and safety and security sites, on-site staff can bring After putting on the helmet with the camera launcher, as the staff enter the scene and change their pos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18A42B3/30
Inventor 汤一平
Owner 汤一平
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