We　developed　a　system　that　can　detect　on-street　parking　spaces　in　real-time.　The　system　uses　a　positioning　module,　a　camera,　and　NVIDIA　Jetson　Xavier　NX　to　build　the　device　components　on　which　pruned　You　Only　Look　Once　v5,　Simple　Online　and　Realtime　Tracking　and　counting　algorithm　are　deployed　to　complete　the　collection　of　occupancy,　geographic　location,　and　other　information　of　urban　on-street　parking　spaces.　Our　device　can　be　integrated　into　the　intelligent　dashboard　cameras　onboard　taxis　or　online　cars　to　form　a　monitoring　network.　Such　a　network　enables　a　dynamic　update　of　urban　on-street　parking　occupancy　information.　More　importantly,　a　long-term　collection　of　this　information　allows　for　an　analysis　of　the　occupancy　rate　which　is　invaluable　in　terms　of　on-street　parking　space　planning.