Background introduction
According to statistics, there are about 300 million legally blind people in the world. Among them, the disadvantaged groups have accounted for 70% of the total. They are feeling the pain that ordinary people cannot experience every day. They can't see the colorful sunlight, they can't see the birds flying and the grass grows, and for them day and night may not be able to be distinguished sharply; for the change of seasons, for them, they may only be able to perceive the temperature difference and nothingness. When they go out alone, the chance of injury in public places is also high.
 
Customer status
In order to give the blind people more care and provide more convenience, some government agencies and enterprises have specially designed some public facilities and tools for the blind, such as blind roads, blind sticks, guide dogs, and smart glasses used by the blind. However, there are still some unsatisfactory places in reality. For example, the blind tools such as the newly launched smart glasses are too expensive for many blind people to buy. Some public places cannot set up blind passages due to their own conditions.
 
Demand analysis
Through in-depth communication with department heads, our sales staff understand that customers' needs are as follows:
1. In public entrances / escalator entrances / halls / blind paths / workplaces for the disabled / etc., There must be voice equipment to provide guidance for the blind;
2. The voice content can be changed at any time;
3. The volume should be large enough;
4. When people pass by, they can play automatically; or press the button to play;
5. Easy to install;
 
Solution
According to the comprehensive analysis, our company provides the following solutions:
1. When a person is in a public entrance / escalator entrance / hall / blind path / disabled workplace, the voice prompter will automatically play the pre-stored sound information after sensing the person's activity, such as "The front is a corner, please slow down "Walk" and other voices to inform blind and visually impaired visitors;
2. The device is also equipped with a wireless button. Visually impaired persons or staff in public places can also press this button to trigger the playback of pre-made voices;
3. PIR human induction function and wireless control function can be switched at any time;
4. Convenient voice update, users can copy audio files to internal FLASH through U disk;
5. Audio output power: 8Ω / 10W ≤100dB
6. Power supply: DC9V ~ 15V
7. Wall-mounted installation, easy to install;

Feedback
The installation of voice prompts in public places is a highlight of local government agencies and enterprises in the construction of barrier-free environments. All private speakers "speak" in public places，blind people follow the guidance of voice, making it easier to move forward and greatly improve the safety factor. This move highlights the humanistic care of the local government and enterprises, allowing blind friends to share the good life brought about by social progress with other citizens.
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