Introduction to Smart Street Lights
Smart street light refers to the street lamp that realizes remote centralized control and management of street lamps by applying advanced, efficient and reliable power line carrier communication technology and wireless GPRS/CDMA communication technology. The smart street lamp has automatic adjustment of brightness according to traffic flow and remote lighting control. The functions of fault active alarm, lamp cable anti-theft, remote meter reading, etc. can greatly save power resources, improve the level of public lighting management, and save maintenance costs. There is also the use of smart street lights as a carrier, expansion functions, add modules, such as: wifi module, led display module, camera module, PM2.5 detection module. Effectively combined with Internet of Things, wireless cities, and safe cities.
1. Smart street light wireless networking architecture
2. Radio Frequency Planning
3. Wireless side quality indicators
Wireless coverage signal strength
More than 95% of the design target coverage area, the received signal strength is greater than or equal to -65dBm.
User authentication test
Test the main WEB certification, and repeat the access test for 20 different APs. The WEB authentication pass rate is >=95%.
Website visit success rate, home page response delay test
The success rate of requesting access to domestic hotspot websites is not less than 99%; the time limit for visiting domestic websites is not more than 3 seconds; the time limit for accessing international websites is not more than 5 seconds.
Signal to noise ratio (SNR)
More than 95% of the design target coverage area, the signal-to-noise ratio (SNR) received by the user terminal wireless network card is greater than 25dB.
4. Outdoor AP
The outdoor wireless access point is an outdoor high-speed wireless access device that supports 802.11a/b/g/n dual-band concurrent. With 2x2 MIMO technology, it supports 11a/n and 11b/g/n dual-band concurrency, and the whole machine can reach up to 600Mbps. The device adopts Gigabit Ethernet port uplink to ensure high-speed wireless transmission; PoE remote power supply makes network deployment easier.