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29 April 2015

Unlocking the unknown

Precise low-cost sensing opens the door to hassle-free car hire

Novel technology from product design and development firm Cambridge Consultants is set to transform the world of car hire. It could spell the end of disputes over liability if a car is damaged. And, if no damage is detected, the technology means zero-hassle returns – drivers will be able to just drop off their car and go.

The DropTag®DRIVE service is based on Cambridge Consultants’ DropTag condition monitoring technology. Using just a small tag fixed to the windscreen, it continually monitors all vehicle accelerations and impacts to give an accurate picture of what has happened to the car during the hire period.

“We’ve all suffered that anxious wait at the hire-car drop-off point as our car is examined for any signs of damage,” said DropTag product manager Tom Lawrie-Fussey. “Now there’s a way to keep tabs on the vehicle when it’s parked – and to help settle any arguments over who might be to blame in a crash.”

DropTag®DRIVE is a simple-to-use, low-cost system that uses Bluetooth Smart technology and connects to any smartphone. In high volumes, the cost for a hire car company works out at just £1 per tag per month – with the reusable tags lasting more than a year.



The tag is ‘always on’ – sensing what is happening to the vehicle and relaying the information to the driver and the car hire company via a smartphone app. In the case of an accident, DropTag®DRIVE can confirm if the vehicle was stationary when it was hit – removing blame from the driver. It can even detect very low-speed car park collisions – down to 2mph impacts.

If no incidents are detected during the hire period, the app will give the driver the all-clear as they arrive in the drop-off area – prompted by a signal from a beacon in the depot which lets the tag know it is about to be returned. The driver can then simply park the car and go on their way.

“DropTag®DRIVE involves precise sensing at a level of performance you wouldn’t believe possible in a consumable – it’s comparable to devices costing thousands of times more,” said Lawrie-Fussey. “This is combined with low-cost electronics and sophisticated power management so that a tiny battery lasts for more than a year. The tag weighs only 25g – yet it can unlock many of the unknowns of the car hire world.”

The advantage for the hire car company is that it gets real-time visibility of how its cars are being driven – helping with vehicle maintenance and turnaround times. Safe drivers could be rewarded with money-off vouchers for future car hire or pricing could be adjusted according to whether a customer is a low-risk or high-risk driver.

Notes to editors

Cambridge Consultants develops breakthrough products, creates and licenses intellectual property, and provides business consultancy in technology-critical issues for clients worldwide. For more than 50 years, the company has been helping its clients turn business opportunities into commercial successes, whether they are launching first-to-market products, entering new markets or expanding existing markets through the introduction of new technologies. With a team of more than 700 staff, including engineers, scientists, mathematicians and designers, in offices in Cambridge (UK), Boston (USA) and Singapore, Cambridge Consultants offers solutions across a diverse range of industries including medical technology, industrial and consumer products, digital health, oil and gas, and wireless communications.

Cambridge Consultants is part of Altran, a global leader in engineering and R&D services which offers its clients a new way to innovate. Altran works alongside its clients on every link in the value chain of their project, from conception to industrialisation. In 2015, the Altran group generated revenues of €1.945bn. With a headcount of more than 27,000 employees, Altran is present in more than 20 countries. For more information, visit

Press Contacts

Corporate communications
Debbie Mayhew
PR & Communications Manager
Cambridge Consultants
+44 1223 392418

European PR agency
David Vindel
+44 20 3755 6444

US PR agency
Hanah Johnson
March Communications
+1 617 960 8892