Stray dogs could soon become guardians of our streets thanks to new technology. ‘Smart vests’ developed in Thailand are aiming to help stray dogs and improve safety in communities. Equipped with a hidden video camera, the vest has sensors that are triggered when the dog barks after spotting danger. A live video of what the dog sees is then transmitted to mobile phones via an application. The technology is being piloted using dogs in Bangkok, which is home to many stray four-legged furry friends. Its creators are hoping the vest will help locals see street dogs in a positive light rather than regarding them as a nuisance.