Up/down link data transmission for indoor navigation based on visible light communication

In This Paper, an Indoor navigation system is proposed for persons with visually disability that utilize VLC (Visible Light Communication) Technology. Using VLC we can provide precise locational coordinates or directions regarding their journey. Light Fidelity (Li-Fi) refers to the VLC technology. VLC is based on the concept that uses visible light as a means of communication enabling faster flow of information [1]. The principle of VLC is that it uses light as a medium to deliver high speed communication. The main idea is to create internal navigation system for the area to create automatic navigation for the visitor who are visually challenged. The Li-Fi is preferred over Wi-Fi because Wi-Fi is nothing but radio-telecommunication which effective within premises, while Li-Fi is effective for faster communication in restricted places without any hurdles. The concept of Li-Fi is used to give the navigation path for visually challenged person and particularly voice guidance of the walk way. Headphone is used to give the voice message to such people. The data is transmitted through the LED light which emits the visible light and an embedded system accepts from receiver. The received data is converted into audio format for the blind people. The suitability of system has been confirmed by means of useful prototype through a trail with blind person.

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Sistem Pemantauan Dapur Menggunakan Teknologi Hybrid WiFi - Visible Light Communication

Jurnal ULTIMA Computing ◽

10.31937/sk.v13i1.2064 ◽

2021 ◽

Vol 13 (1) ◽

pp. 39-43

Author(s):

Denny Darlis ◽

Aris Hartaman ◽

Afifah Shafira

Keyword(s):

Visible Light ◽

Gas Sensors ◽

Data Transmission ◽

Fire Detection ◽

Visible Light Communication ◽

Sensor Data ◽

Test Results ◽

Final Project ◽

Parameter Values ◽

Monitor Data

Visible Light Communication (VLC) is a technology that allows the sending of data information through visible light that will be received as a piece of information. In its implementation, a sensor can send information data using VLC in this technological era. One model of data transmission that is widely used in life is to use radio frequency or better known as wireless.In this final project, a transmitter and receiver of data is realized through the transmission of light, this device consists of a lamp as an electrical converter to light, a photodioda as a converter of light to electric, and receiving data. Through the realization of this tool we can know that the transmission of data through light can occur can be used to transmit data. Data transmitted in this final project is the result of three sensor data namely temperature sensors, gas sensors, and fire detection sensors on the transmitter and on the receiver used firebase to monitor data. From the test results produce parameter values such as distance with a maximum distance of the data is accepted either 45cm, 50cm of data is damaged and 55cm of data is not accepted, the variations in angles and distances show that at a distance of 10cm it can receive data well from an angle of 0ᵒ to an angle of 35ᵒ, a distance of 35cm and 40 cm at an angle of 10ᵒ the received data is damaged and at a distance of 45cm and 50cm at a 5ᵒ angle cannot receive data and as well as the sending speed parameters obtained at a baudrate of 2400 bps, 4800 bps and 9600 bps the data sent can be received well.

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