Object position determining system and object detection system

1. An object position determining system, comprising:

at least one light source, configured to emit light;

at least one optical sensor, configured to sense optical data generated based on reflected light of the light; and

a processing circuit, configured to compute distance information between the optical sensor and at least one object which generates the reflected light;

wherein the processing circuit further determines at least one position of the object according to the distance information;

wherein the object position determining system comprises:

a first object position determining device, comprising:

at least one first light source, configured to emit first light;

a first optical sensor, configured to sense first optical data generated based on reflected light of the first light;

a first processing circuit, configured to compute at least one set of first distance information between the first optical sensor and a human body or a chair, which generates the first reflected light;

a second object position determining device, comprising:

at least one second light source, configured to emit second light;

a second optical sensor, configured to sense second optical data generated based on reflected light of the second light; and

a second processing circuit, configured to compute at least one set of second distance information between the second optical sensor and the tray table, which generates the second reflected light;

wherein the first object position determining device is located above the tray table, and the second object position determining device located below the tray table;

wherein the first processing circuit determines an inclining state of the human body or the chair according to the first distance information;

wherein the second processing circuit further determines the inclining state of the tray table according to the second distance information;

wherein the light source is the first light source or the second, the optical sensor is the first optical sensor or the second optical sensor, and the processing circuit is the first processing circuit or the second processing circuit.

2. The object position determining system of claim 1 , wherein the distance information comprises at least one distance value, and the processing circuit determines the position according to the distance value.

3. The object position determining system of claim 2 , wherein the processing circuit determines the position by computing multi axes distances between the optical sensor and the object.

4. The object position determining system of claim 1 , wherein the distance information comprises a relative distance variation, and the processing circuit determines the position according to the relative distance variation.

5. The object position determining system of claim 1 , wherein the light source is at least one line light source, a plane light source, or a plurality of point light sources.

6. The object position determining system of claim 1 , wherein the position is an inclining state of the object.

7. The object position determining system of claim 6 , wherein the object is a chair.

8. The object position determining system of claim 6 , wherein the object is a human body.

9. The object position determining system of claim 6 , wherein the object is a tray table.

10. The object position determining system of claim 6 , further comprising:

a prompt message generation device, configured to generate

a prompt message according to the inclining state.

11. The object position determining system of claim 1 , wherein the second object position determining device is located on the chair.

12. The object position determining system of claim 1 , wherein the processing circuit further determines if a target space is occupied according to the distance information.

13. The object position determining system of claim 12 , wherein the target space is a chair, a compartment, a container, an elevator or a parking space.

14. The object position determining system of claim 1 , wherein the processing circuit further determines a location of the object according to the distance information.