Patent attributes
A portable child safety seat system has three lightweight, easily transferable modular components. The system utilizes one or more pressure sensor switches configured to be placed under the cushion of a vehicle's infant seat or cushions of multiple infant seats to detect the presence of a child in that seat. Electrical lines connect the pressure sensor switch to an interface unit which contains a back-up electrical power source, i.e. a rechargeable battery. The interface unit is in turn connected by electrical lines to a controller component which has a plug section for receiving electricity and a display section to indicate the presence of the child in the infant seat. When a child is in the infant seat and the vehicle's engine is running, the pressure sensing switch is closed and electricity is directed to light the display section of the controller. When the engine is not running, electricity is directed from the back-up battery to light the display section. An optional voltage sensing circuit is provided for use with certain types of vehicles.
