Portable blindman independent navigation system

Abstract

The invention relates to the technical field of navigation systems, in particular to a portable blindman independent navigation system. The portable blindman independent navigation system is a main glasses body, which comprises a glasses framework, pinhole cameras arranged on both sides of the main glasses framework, a GPS (Global Position System) arranged in the middle of the main glasses body, earphones arranged at the tail ends of the glasses framework and embedded hardware systems arranged in lenses of the main glasses body; wherein the embedded hardware systems arranged in the lenses of the main glasses body comprise extension ports, ARM (Advanced RISC Machines, RISC is short for Reduced Instruction-Set Computer) systems, videos, ARM inner cores, DSP (Digital Signal Processor) inner cores, FPGs and Linux real-time operation systems. In the portable blindman independent navigation system, the embedded systems are used for carrying out three-dimensional information extraction on binocular images acquired by the pinhole cameras, a built-in navigation map and GPS information are used for comparison to acquire relevant information of positions, directions, front barriers and the like and converting results into voice signals to inform blindmen.

Description

technical field [0001] The invention relates to a navigation system, in particular to a portable blind autonomous navigation system. Background technique [0002] There are tens of millions of disadvantaged groups in our country. When they travel, they will face various complex and changeable traffic environments. The increasing number of motor vehicles and various obstacles on the road will threaten the travel of the blind. One is walking, and the other is traveling by car. The walking of the blind requires a navigator or a navigation dog. As far as the current guide aids are concerned, most of them are systems that passively detect and avoid obstacles or directly guide the visually impaired. The former mostly uses ultrasonic sensors or cameras, which have insufficient perception of environmental information and cannot guide the visually impaired to walk autonomously. The latter makes the visually impaired rely too much on guiding aids and lacks the autonomy to walk indepe...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: current navigation systems for the blind mostly use sensors with relatively simple functions and a relatively small number of sensors to detect obstacles, hardware platform construction and software structure design are relatively simple, real-time performance and functional scalability are not good, and In use, there are problems such as low detection performance, limited use environment, large and heavy system, and high power consumption. A portable blind autonomous navigation system is provided.

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