Farms and contracting businesses operating in yards crawling with staff and machines could benefit from a new retrofit system that alerts drivers to the presence of people.

The AI HFR Box, developed by machinery safety specialist Brigade, adds so-called “human form recognition” technology to existing camera kits. So, rather than investing in fresh hardware, buyers can keep their analogue camera – on the back of a loading shovel, for instance – and simply wire in the box of tricks between it and the on-board monitor.

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One module can work with two cameras to sound visual and audible alerts should someone wander within a predefined detection zone. Installation is reckoned to take an hour, and a single box costs £632.