Environmental Monitoring Systems (EMS) are of critical importance across a variety of industries. At its heart an EMS is a collection of sensors for detecting environmental conditions such as temperature, humidity, airflow. These sensors are usually connected to a device that monitors the parameters and will alert the operator should a sensor go outside of pre-determined thresholds. Environmental monitoring is particularly applicable for computer rooms and data centers. Typically rack mounted servers have optimum operating temperatures that improve their reliability and longevity. Heat can kill electrical components quickly, and a lot of the supporting infrastructure in a computer room is aimed at controlling the environmental conditions. Racks have cooling fans that draw cool air from outside into the cabinet, and the room itself is equipped with air conditioning units and other HVAC equipment. Temperature and humidity sensors are vital, as are airflow sensors. Raised flooring with cable running beneath it is also monitored for water leakage. The sensors are monitored and alerts generated in the form of SNMP traps, e-mails, SMS etc. This allows quick response to potentially catastrophic situations that could lead to permanent damage and downtime of the rack mounted servers or other electrical equipment. Sensor controlled relays can also be deployed to switch on additional cooling fans or ACU should high temperature or humidity be detected.
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