British supermarkets sell £13 billion worth of fresh produce every year, and 70% of it passes through supply-and-pack companies that now cannot find enough workers to handle the fruit and vegetables. The problem is that packing delicate, irregularly shaped items like tomatoes requires a human sense of touch—the ability to feel for bruises, judge ripeness, and grip without crushing. Current robotic grippers work open-loop: they cannot adjust their grasp when the object’s shape or texture is unpredictable. This project, Robo-Pack, will build a robotic manipulator that uses proprietary tactile sensors to give the gripper a sense of touch, initially targeting tomato packing. If successful, the technology could automate a sector that is almost entirely manual, reducing reliance on seasonal labour and making the supply chain more resilient to workforce shortages. It would not replace human inspectors entirely but would handle the repetitive picking and packing that currently stalls production when staff are scarce. The same tactile sensing approach could later extend to other soft fruits and vegetables, keeping affordable produce on shelves without interruption.
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"An increasing global population and a difficulty in attracting sufficient numbers of workers from with the current EU is a direct threat to affordable and secure supply for the UK. In order to address this challenge, the agricultural and food manufacturing sectors are increasingly using technology to address the shortfall in labour availability. The suppliers and packers are the nexus between growers and retailers, which in the UK, deal with £13billion worth of fresh produce annually, 70% of which is sourced and imported by the supply and pack industry to meet consumer demand. Any perturbation in this flow of safe nutritious food will have severe consequences for human health and wellbeing. Robotic manipulation is the ""holy grail"" for fresh produce packing e.g. fruits and vegetables, which tend to be delicate objects with irregular shapes. This sector is dominated by manual labour, because of the need for intricate human handling and inspection skills; this intervention is required for the selection of unblemished product that consumers expect and demand all year round. In such applications, a sense of touch in the end-effector (robot-gripper) is critical. Unfortunately, robotic manipulator systems do not yet possess this capability. Current state-of-the-art systems essentially act open-loop, without the ability to successfully grasp an object if the mechanical interaction between the end-effector and the grasped object is not well predicted; such is the case with the handling of fresh produce. The consortium will develop **Robo-Pack**, an advanced robotic manipulator for the inspection and packing of fresh produce, initially targeting tomatoes. **Robo-Pack** builds upon proprietary tactile sensing and robot manipulation technology systems."
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