Abstract
Historical and ongoing pedestrian anxiety about night crimes in alleyways is an important issue in our society. Therefore, recommended illuminance levels in pedestrian alleys have been established and security lighting meeting such illuminance levels has been installed to ensure proper brightness. However, pedestrians may still feel that such areas are too dark and want to ensure their safety through sufficient brightness, especially late at night. In this study, a smart security lighting system, which was namely the Connected Security Lighting System (CSLS), has been designed to reduce the pedestrians’ fear of crime in smart cities. The CSLS increases the brightness of security lighting by turning on additional lights to relax pedestrians’ psychological fear of crime because of the increased sense of surveillance. Such a change may also deter potential offenders. The CSLS employs various sensors and information communication technologies that are widely used in interior and outdoor smart lighting applications. It also uses a beacon device and smartphone application to effectively detect pedestrians while infrared sensors in the CSLS are activated to detect any pedestrians approaching from the opposite direction after the beacon device is initiated. The method for controlling the CSLS is described and a prototype system is presented to demonstrate the feasibility of this security lighting system in smart cities.
Highlights
Serious crimes, such as robbery, assault and battery, tend to occur at night [1,2] and pedestrian anxiety about crimes that occur at night is rampant in our society [3]
Tshyestceomncecpatnanpdrcoovnidtreol pmoestihtiovde fposrytchhioslloigghictainlgesfyfestcetsm tion spmeadretsctirtiiaenssis bdyescsreicbuedrinagndgaopordotovtiysipbeilsityysteamndis ipnrcerseeanstiendgtothdeemsoensteraotef tshuervfeailsliabniclietyinofththeisalslecyu. rTithyelicgohntcienpgtsaynstdemco.ntrol method for this lighting system in smart cities is described and a prototype system is presented to demonstrate the feasibility of this security lighting system
Other studies proposed light control systems that used a real-time operating system (RTOS) to control security lighting based on the presence of a moving body
Summary
Serious crimes, such as robbery, assault and battery, tend to occur at night [1,2] and pedestrian anxiety about crimes that occur at night is rampant in our society [3]. Alleys that are vulnerable to crime occasionally have narrow paths and poor visibility [4] and security lighting in such areas often does not provide sufficient brightness (see Figure 1) Due to this issue, the recommended illuminance levels in pedestrian walkways have been established and security lighting meeting such illuminance levels has been installed to ensure proper brightness for pedestrian safety. Regardless, pedestrians may still feel that the lighting level is insufficient and want to ensure their safety through increased brightness above the recommended illuminance levels, especially late at night. Measures, such as installing additional security lighting or increasing the luminous flux of existing security lighting, can be considered to solve such problems. Tshyestceomncecpatnanpdrcoovnidtreol pmoestihtiovde fposrytchhioslloigghictainlgesfyfestcetsm tion spmeadretsctirtiiaenssis bdyescsreicbuedrinagndgaopordotovtiysipbeilsityysteamndis ipnrcerseeanstiendgtothdeemsoensteraotef tshuervfeailsliabniclietyinofththeisalslecyu. rTithyelicgohntcienpgtsaynstdemco.ntrol method for this lighting system in smart cities is described and a prototype system is presented to demonstrate the feasibility of this security lighting system
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