Blind person supermarket shopping auxiliary device based on DSP (Digital Signal Processor)
An auxiliary device, technology for the blind, applied in the direction of measuring devices, electromagnetic radiation induction, instruments, etc.
Inactive Publication Date: 2012-11-28
SHANGHAI JIAO TONG UNIV
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[0006] The present invention aims at the problem of "difficulty shopping" encountered by blind people in supermarkets, and provides a set of all-round solutions to help solve problems that blind people may encounter in supermarkets, making it possible for blind people to carry out supermarket shopping independently and barrier-free
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[0024] The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In these drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.
[0025] Now describe in detail the embodiment of the DSP-based shopping assistant device for the blind in the supermarket according to the present invention with reference to the accompanying drawings.
[0026] Such as figure 1 As shown, the shopping assistant device for the blind in the supermarket according to the embodiment of the present invention includes a capture unit, which captures the environmental information of ...
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The invention provides a blind person supermarket shopping auxiliary device based on a DSP (Digital Signal Processor), comprising a capturing unit, a DSP processing unit and a prompting unit, wherein the capturing unit is used for capturing environment information in a supermarket and converting the environment information into a digital signal; the DSP processing unit is used for processing the digital signal corresponding to the environment information to obtain a processing signal corresponding to the environment information; and the prompting unit is used for sending out a prompt to a blind person according to the processing signal to help the blind person to shop. The DSP is used as a main judging processor of a supermarket environment. Compared with the traditional embedded type processor, the DSP has the special advantages on a signal processing aspect and the complicated supermarket environment can be rapidly and effectively judged, so that the calculation speed and the instantaneity of the system are enhanced.
Description
technical field [0001] The invention relates to a blind-guiding device in the technical field of detection, in particular to a shopping assistant device for assisting blind people to shop independently without barriers in large supermarkets. Background technique [0002] Ordinary people get more than 80% of the external information through vision. Due to the impairment of vision, there are many restrictions in the lives of blind people. According to estimates by the World Health Organization, there are more than 40 million blind people in the world, most of whom cannot be cured by medicine or surgery. In order to help the blind overcome the difficulties caused by blindness and improve the quality of life of the blind, many scientists are committed to the development of assistive devices for the blind. Paying attention to the difficulties in the lives of the blind and working hard to solve them expresses the society's humanistic care for the disadvantaged groups, and it is a...
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IPC IPC(8): G01C21/00G06K7/10
Inventor 童善保王东潇郭腾飞牛金海胡景迪翟予佳
Owner SHANGHAI JIAO TONG UNIV