Projection system and method for sensing occupancy of a user and objects in a space

A projection system, wherein the projection system comprises a first sensing group, a second sensing group, and a display device, wherein

• the first sensing group senses a space and generates a first sensing result to determine whether a user is in an entering state or an exiting state relative to the space;
• the second sensing group senses a first object or a second object in the space according to the first sensing result and generates a second sensing result;
• the display device generates a prompt information according to the second sensing result and displays the prompt information, wherein,
• the second sensing group senses the first object when it is determined that the user is in the entering state relative to the space, and
• the second sensing group senses the second object when it is determined that the user is in the exiting state relative to the space.

A projection method, wherein the projection method comprises:

• providing a first sensing group, wherein the first sensing group senses a space and generates a first sensing result to determine whether a user is in an entering state or an exiting state relative to the space;
• providing a second sensing group, wherein the second sensing group senses a first object or a second object in the space according to the first sensing result and generates a second sensing result;
• and
• generating a prompt information according to the second sensing result and displaying the prompt information;
• wherein the space is a space in a vehicle, and the step of the first sensing group sensing the space and generating the first sensing result comprises:
• sensing a door and/or an engine of the vehicle via the first sensing group, wherein,
• when the first sensing group senses that the door is opened and senses the engine is started within a first preset time after the door is opened, it is determined that the user is in the entering state relative to the space;
• and
• when the first sensing group senses that the door is opened and senses the engine is when the first sensing group senses that the door is opened and senses the engine is shut down within a second preset time before the door is opened, it is determined that the user is in the exiting state relative to the space.

A projection system, wherein the projection system comprises a first sensing group, a second sensing group, and a display device, wherein

• the first sensing group senses a space and generates a first sensing result to determine whether a user is in an entering state or an exiting state relative to the space;
• the second sensing group senses a first object or a second object in the space according to the first sensing result and generates a second sensing result;
• and
• the display device generates a prompt information according to the second sensing result and displays the prompt information;
• wherein the space is a space in a vehicle, and the first sensing group senses a door and/or an engine of the vehicle, wherein
• when the first sensing group senses that the door is opened and senses the engine is started within a first preset time after the door is opened, it is determined that the user is in the entering state relative to the space;
• and
• when the first sensing group senses that the door is opened and senses the engine is when the first sensing group senses that the door is opened and senses the engine is shut down within a second preset time before the door is opened, it is determined that the user is in the exiting state relative to the space.