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DHL, AeroScout, Microlise Team to Track Temperature for Pharma Maker

A European pharmaceutical manufacturer is testing RFID and sensors to monitor temperatures inside vans transporting drugs from Belgium to Sweden.
By Claire Swedberg
May 29, 2007Delivery and logistics company DHL is testing an RFID-based temperature tracking system for a European pharmaceutical company. The system will track, in real time, the location of vehicles transporting temperature-sensitive products, as well as the temperature inside those vehicles.

The pharmaceutical company has asked not to be identified, says Jeroen Martens, RFID program leader for the DHL Exel Supply Chain, formed at the end of 2005 when DHL acquired Exel as part of Deutsche Post World Net. According to Martens, the firm contacted DHL about a year ago, seeking a tracking system that would provide better visibility of the temperature of its medications as they traveled through the supply chain. DHL Exel Supply Chain provides core procurement logistics, warehousing and sales logistics operations, as well as such value-added services as finishing, co-packing, price labeling, billing, order processing, sales promotion and financial services.

Andris Berzins, AeroScout
Due to the more stringent European regulation of pharmaceutical product temperature requirements, coupled with a growing number of new temperature-sensitive products, the pharmaceutical company required a more robust solution than the temperature loggers currently in use can offer. Temperature loggers gather data but cannot be read and analyzed until after a shipment reaches its destination—a process that can cause up to a three-day delay. The loggers are also unable to alert shippers in real time if a truck's temperature falls out of the acceptable range for a product it is carrying (usually -20 degrees Celsius for frozen goods, 2 to 8 degrees Celsius for refrigerated goods).

Maintaining a record of product temperature provides companies with proof their products have arrived in the proper condition. While temperature fluctuations may not happen commonly en route, even one unresolved temperature problem can cause the destruction of an entire shipment. Obtaining temperature data in real time offers companies an added layer of security. If, for example, a pharmaceutical manufacturer learns that the temperature has risen out of range for a particular product, it can either alert a driver to rectify the problem, or send a new shipment.

The system being piloted utilizes AeroScout RFID hardware and Microlise communications hardware and software.

The pallets for the pharmaceutical shipments originate in Belgium and are fitted with AeroScout (Wi-Fi) 2.45 GHz RFID tags featuring active 802.11 tags and temperature sensors. On the outside of each van used to transport the pallets, DHL has installed a Microlise unit near each doorway. The unit incorporates GPS and GPRS capabilities, as well as an AeroScout RFID reader, which receives the unique ID number and latest temperature read from each tag on a regular basis. Also incorporated in the Microlise unit is an In Vehicle Computer (IVC) including a Microlise GPS tracking unit to monitor the van's location, and a Microlise general packet radio service (GPRS) modem designed to transmit all the data collected to a central monitoring station.

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