Intelligent CIO Africa Issue 01 | Page 21

PROJECT LATEST What are eqo scanners? Millimetre-wave refers to that part of the electromagnetic spectrum that lies between radio waves and infrared. This spectral band is used in many everyday products such as intruder alarms and driver assist for car parking. Millimetrewaves possess the property of passing transparently through lightweight materials such as clothing fabrics. The property is made use of in mm-wave scanners that find their main application in concealed object detection systems – typically used to identify the presence of weapons and contraband that are hidden beneath a person’s clothing. Millimetre waves are reflected from the body at different levels compared to hidden objects concealed beneath the clothing. The millimetre waves are received and sophisticated software algorithms analyse the data to locate any concealed objects. www.intelligentcio.com Smiths Detection uses a technology that scans the 3D scene electronically to provide the first no moving parts scanner that is suitable for mass people screening. The system consists of a flat-panel array that produces high quality data that is processed through the automatic detection algorithms in real-time. The transmitted millimetre waves are directed to the panel. The millimetre waves reflected by the body are sensed by the receiver. The 3D volume is made up of thousands of fine voxels which are all interrogated 15 times every second. This builds up the data for the programmed person who is being scanned that is used by the automatic detection algorithms. The eqo product – named because it senses millimetre wave echoes – marks an evolution to next-generation technology for millimetre wave scanners. The electronic scanning not only dispenses with the need for moving parts but also dramatically reduces the footprint of the product. In order to preserve the privacy of people who are being scanned the detection process is automated. In these automatic systems, the data processing algorithms find the position of concealed objects and provides a location indicator on a generic graphic to the system operator. The automated systems also have a faster and more cost-effective screening process. The fine resolution and high refresh rate allow eqo’s automatic detection engines to produce a high probability of detection with a low false alarm rate. INTELLIGENTCIO 21