Challenge
Preventing break-ins and unwanted intrusion is a major concern for unmanned roadside cabinets. Constant surveillance is required to ensure that the enclosed control equipment and devices are functioning properly. This is usually accomplished by continuous monitoring of door sensors.
Protection from vehicular collision is also a concern. Fog lights can be installed that will turn on automatically when the fog gets too thick. However, this requires that the embedded computer continuously poll the fog sensors, placing a heavy demand on system resources. It is nearly impossible to manage both the fog lights and door security at the same time using traditional polling methods, because the system response time becomes unacceptably slow.
Solution
The ioLogik E2210 Active Ethernet I/O server can proactively report sensor status to reduce system loads. The I/O server connects directly to the fog lights and door sensors. A separate embedded computer analyzes the air moisture density and tells the I/O server when to switch on the fog lights. The I/O server handles the monitoring of the door sensor and notifies the system as soon as the door is open.
Since the embedded computer no longer needs to poll the door sensors, it has
more system resources available to handle more important
tasks, such as sending commands to switch on the fog lights
or
sending warning signals over a GSM/GPRS modem. Furthermore,
by reducing system resource requirements, a computer with
low power consumption can be used.
Setup time is also reduced by using the Click&Go logic built into the ioLogik E2210. With its simple If-Then control structure,
users can easily configure the I/O server, but without
needing advanced programming knowledge.
Benefits
