With the continuous development of urbanization

the number of cars is increasing year by year. Traditional plane car-parks can no longer meet the needs of urban development

and there are also problems such as low utilization rate of parking spaces

few parking spaces

and parking safety. Therefore

this study designs a smart car-park system based on IoT sensor technology

which combines the control equipment

sensing mechanism

IoT gateway

and cloud platform of the smart car-park. It collects sensor data from various ends of the smart car-park through the internet of things gateway

transmit it to the cloud platform

monitor or trigger commands on the cloud platform

and achieve intelligent management of vehicle entry and exit of the smart car-park. This design has been verified through practical applications to demonstrate the reliable application of IoT sensor technology

which can bring great convenience to parking communities

property management personnel

and system maintenance personnel. We believe that the smart car-park system will become an important part of future urban transportation and make more contributions to resolve urban traffic congestion and parking difficulties.