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. 2022 Oct 17;22(20):7888. doi: 10.3390/s22207888

Table 7.

Properties of the Blind Guidance System.

Blind Audio Guidance System
Distance Measurement The ultrasonic sensor facilitates the visually impaired by measuring distances accurately.
Audio Instructions I.R.R. sensor detects obstacles and provides instant audio instructions to blind people.
Hardware Costs The system comprises different hardware components that might be a little expensive. However, it remains one of the most reliable systems.