Tesco has highlighted the introduction of queue-busting thermal imaging cameras as a key factor in a 10 per cent rise in half-year pre-tax profits to £1.09bn.
"We have heat-seeking cameras that sense the number of customers entering a store and predict the checkouts that need to be open," he said.
"We can monitor and manage the service more precisely by customer, by store and by the minute. Thanks to this, a quarter of a million more customers every week do not have to queue."
The Irisys cameras use sophisticated thermal imaging technology to measure and predict customers' arrival at checkouts, enabling managers to ensure that the optimum number of tills are open to deliver the best possible service to customers.
Infrared sensors above the checkout lanes detect the number and behaviour of customer groups at the checkouts.
The intelligent sensors automatically calculate the average queue length, average wait time and overall store performance against Tesco's One in Front customer service commitment.
Displaying real-time queuing data on the shop floor enables the retailer's management team to deploy multi-skilled staff to react quickly to potential queuing issues, according to Tesco.
Wikileaks Vault 7 suspect Joshua Schulte fingered by FBI after re-using smartphone passwords on his PCs
Joshua Schulte indicted on 13 counts relating to Vault 7 leaks and trading in images of child abuse
Alexa for Hospitality will link with existing systems so guests can order room service and control the air con
Massive volcanic eruptions could have warmed Mars' surface sufficiently for oceans to form
Examination of fruit flies' brains generated more than one billion data points for scientists to analyse