Abstract
In this paper, we report a smart street lighting control system using the ESP8266 which is a low-cost Wi-Fi chip with full TCP/IP stack and microcontroller capability. Our system is equipped with a web server developed in HTML code. Hence, our smart street lighting system can be controlled wirelessly to turn ON or turn OFF, and it can be monitored its environmental condition (i.e., temperature and humidity around the system). All sensors used in this system are pure digitally-outputted sensor: DHT11 to monitor the ambient temperature and humidity and BH1750 to adjust the street light intensity automatically. The dimming technique was applied in the control system by using Pulse Width Modulation (PWM). The system was divided into two main parts: Gateway and Node in which these two parts employ the ESP8266. The Gateway as a coordinator will send a message to the node as an end device (in this work, the streetlight act as a Node). Later, the node will send the ACK to the Gateway. As results, each node can send a message to other nodes.
Highlights
Street lighting is one of the city’s infrastructures that gets particular concern from the city government because it provides many significant benefits
3.1 Pulse Width Modulation (PWM) measurement The PWM measurement is done by using a digital oscilloscope
Based on the test result, it can be seen that the width of the PWM pulse varies according to the light intensity
Summary
Street lighting is one of the city’s infrastructures that gets particular concern from the city government because it provides many significant benefits. Street lights are one of the city’s strategic assets in providing safety aspect for drivers, riders, and pedestrians, inviting public areas and enhancing security in homes, businesses, and city center. Street lighting is one of the most massive electrical consumption for municipalities area. A case study of BEE reports that the street lighting comprises of 10 – 38% of total energy consumption in typical cities worldwide [1]. It is estimated that street lights are operating up to 12 hours a day. The management and control of street light in the city have a problem nowadays because most of them still use the uncontrolled street light (manual control). Effectiveness in effort and efficiency in costs is still relatively low
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