Automated Acoustic Signal Device Using Arduino
The Automated Acoustic Signal Device uses Arduino to provide location information and street details automatically to visually impaired users within a certain range, eliminating the need for manual button pressing and allowing flexible installation locations. It enhances hygiene and safety by operating without physical contact and automatically detecting nearby signals, offering significant improvements over traditional systems.
When approaching a device that indicates the current location, a vibration module alerts the user that an alarm is available.
Information about the street is automatically provided through a speaker module without any additional steps.
The device can transmit audio signals within a certain distance, so it is not limited by the location of the installation.
It can be attached to the top of a cane, allowing the use of existing white canes.
Economic and Practical Benefits:
Reducing Economic Losses from Incorrectly Installed Acoustic Signals:
In South Korea, over 250,000 visually impaired people face difficulties with existing acoustic signal devices. According to the Korea Road Traffic Authority, many acoustic signal devices do not meet installation standards, leading to confusion and unsafe conditions. This invention prevents economic losses and walking difficulties, as visually impaired individuals do not need to manually operate the acoustic signals, even if they are improperly installed.
Ease of Installation:
Improperly installed acoustic signals can be inaccessible. For example, an acoustic signal at Daegu Buk-gu Office crosswalk requires users to climb a step to press the button, making it unusable for some visually impaired people. This device overcomes such issues as it only needs to be within a detectable range to function, greatly expanding installation possibilities.
Advantages Over Existing Systems:
No Need for Manual Button Pressing:
Traditional acoustic signals require visually impaired individuals to find and press a button, which is inconvenient. Although remote controls for voice activation exist, users must press buttons repeatedly to locate the signal. This invention automatically provides audio guidance within a certain range, eliminating manual button pressing.
Flexible Installation Locations:
Unlike traditional systems that need to be placed at accessible heights, this device can be installed anywhere within the detection range, reducing spatial limitations.
Hygienic Use:
Traditional acoustic signals with external buttons are prone to contamination and require frequent disinfection, especially during pandemics like COVID-19. This device operates without physical contact, ensuring better hygiene.
Automatic Signal Detection:
Existing Bluetooth-based acoustic signal applications require users to click a button within the app for each signal, which is cumbersome and can lead to safety issues while walking. This device automatically detects nearby signals and provides guidance, preventing accidents and enhancing safety.