Reed Sensors to Prevent Thievery in Cargo Containers
Cargo theft is an international problem and hundreds of millions of dollars of goods are lost due to pilferage and theft of containers. Containers remain in open areas for several weeks or months sometimes, due to shipping and logistical delays and this presents perfect opportunities for crooks. Thievery of cargo containers happen even when goods are in transit either stealthily or sometimes even by bolder means. As a result logistical providers and insurance firms add GPS tracking to all containers that they move but this too is sometimes being thwarted by more tech-savvy thieves who dismantle such units. Reed Sensors added to the GPS units serve as a theft proof device by installing a magnet inside the container. If the GPS unit is removed forcibly, the reed sensor trigger an alarm and alerts the authorities. As always stated, reed sensors are very suitable for battery operated applications such as these as they do not drain power when not in operation. Reed switch based Ferro-magnetic detection sensors are also readily available for use in such applications and these can even detect the doors of containers when fabricated out of ferro-magnetic material
Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.
The Reed Switches and Sensors used in such applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.
FM-328, Standard Ferro-magnetic Metal Detection Sensor
|Does not require power for operation, Normally Open contact form, Detect any Ferro-magnetic material,...Continue reading|
MS-108 Standard Size PCB Mountable Reed Sensor
|Omni polar, normally open (NO), epoxy encapsulated, 17.7 mm PCB mountable pin pitch, capable...Continue reading|