Trans4data reliable intersection surveillance solution

Intersections are usually the busiest places where minor or severe road accidents occur frequently in a city or town.
To solve this issue, city governments are increasingly installing various surveillance systems at intersections so as to effectively 
reduce traffic accidents and at the same time to strengthen road safety. Intersection surveillance systems including the use of PoE IP surveillance cameras, 
traffic flow sensors and traffic controllers, are able to record traffic images, count the number of passing cars and record car speed 
or to be reviewed for accident footage. However, these end devices are incapable of Ethernet transmissions. Therefore, they need to be used with 
PoE-supported Ethernet Switches so that a secure intersection surveillance solution can be built up. When choosing the right intersection surveillance devices, 
there are several challenges that need to be considered:

Challenges:

• Devices placed in a junction box at intersections may have high possibilities to be hit by lightning or suffer from ESD and surge.
• When a single point of failure occurs in a device, the engineer may not be able to visit the field site immediately to solve the problem.
• When the connected PoE devices fail, the engineer needs to pay on-site visit to troubleshoot problems.
• Unstable or fluctuated PoE power output may damage the connected PoE devices.
• Outdoor temperature at road intersections varies greatly from day to night or from season to season. During summertime, the temperature in a metal junction box may reach up to 50°C or higher; however, in winter, temperature may drop to -20°C or lower.

Application sample: