Navigation mobile phone for the blind

A blind navigation and mobile phone technology, which is applied in the direction of appliances, telephone communication, and instruments that help people to move around, to achieve the effects of high positioning accuracy, lower terminal costs, and convenient information input.

Active Publication Date: 2011-08-24
CHINA HUALU GRP
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  • Navigation mobile phone for the blind
  • Navigation mobile phone for the blind

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Embodiment Construction

[0023] The intelligent navigation mobile phone for the blind provides navigation services for the blind through cooperation with the navigation server through the 3G network. Such as Figure 1 to Figure 4 The navigation mobile phone for the blind shown includes a smart phone baseband chip, a voice module, a storage device, a keyboard for the blind, a data interface, a radio frequency module, a dual camera module, an ultrasonic ranging module, a microwave speed measuring module, a GPS / GPSONE chip and a three-axis gyroscope and accelerometers;

[0024] The voice module is used for voice recognition, enabling the user to input destination information through voice; at the same time output voice prompt information;

[0025] A keyboard for the blind, which is used to enable users to enter destination information;

[0026] The dual-camera module is used to collect image information, extract the color information of the image through image recognition technology, and can accurately...

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Abstract

The invention discloses a navigation mobile phone for the blind. The navigation mobile phone is characterized in that: a user inputs destination reaching information by a voice module or a keyboard for the blind, a global positioning system (GPS)/GPSONE chip acquires the current position information of the user, and the destination reaching information and the current position information of the user are transmitted to a navigation server by a mobile phone radio frequency module; a travel scheme provided by the navigation server and a regional map are downloaded by the mobile phone radio frequency module, and navigation information general situations are broadcast to the blind by voices; simultaneously image information acquired by a dual-camera module is processed, traffic light, blind sidewalk or zebra crossing information is extracted and broadcast to the blind by the voices, and obstacle information is acquired and broadcast to the blind in a voice way by an ultrasonic ranging module and a microwave speed measurement module; and the falling or collision information of the user is monitored and recorded by a three-axis gyroscope and an accelerometer. The mobile phone is highly integrated, simply operated, convenient to produce, low in cost and suitable for wide popularization.

Description

technical field [0001] The invention relates to a navigation mobile phone for the blind. Background technique [0002] With the development of the electronics industry, the navigation system for the blind is becoming more and more intelligent. Among them, the voice prompt of blind navigation is very important in the navigation system, and it is used during the walking process of the user, so the positioning accuracy and reliability are particularly important. In the published blind navigation device patents, GPRS or GPS are used alone for positioning. Using GPRS positioning alone has poor positioning accuracy and is hardly practical. However, if GPS positioning is used alone, the positioning accuracy will be greatly reduced in a street environment full of tall buildings, and sometimes it cannot even be positioned. In addition, currently announced navigation electronic devices for the blind are mostly realized by FPGA, which has the problems of high cost and difficult deve...

Claims

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Application Information

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IPC IPC(8): H04W4/02G01S19/48A61H3/06H04M1/725H04M1/72481
Inventor 蔡保超何列求王媛媛张丽坤
Owner CHINA HUALU GRP
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