Interactive recognition system and display device

1. An interactive recognition system, comprising:

a sensing unit configured to receive light signal;

a coordinate recognizing unit configured to recognize a coordinate of the light signal received by the sensing unit on the sensing unit and recognize a motion track of the light signal on the sensing unit;

a determining unit configured to determine a control instruction represented by the motion track; and

an executing unit configured to execute the control instruction;

wherein the determining unit comprises a threshold determining subunit, in which a time threshold that the light signal lasts is stored, and

the threshold determining subunit initially determines the light signal as a valid signal when a duration time of the light signal exceeds the time threshold.

2. The interactive recognizing system according to claim 1 , wherein the sensing unit is a sensing matrix formed by an arrangement of several sensing devices.

3. The interactive recognizing system according to claim 2 , wherein the sensing device is a photosensitive diode.

4. The interactive recognizing system according to claim 1 , wherein the coordinate recognizing unit comprises a horizontal ordinate recognizing subunit and a vertical ordinate recognizing subunit configured to recognize a horizontal ordinate and a vertical ordinate of the light signal received by the sensing unit on the sensing unit, respectively.

5. The interactive recognizing system according to claim 1 , wherein the determining unit comprises a storing subunit configured to store a correspondence relationship between a motion track and a control instruction,

wherein the determining unit compares a motion track of the light signal recognized by the coordinate recognizing unit with a motion track stored in the storing subunit, so as to determine a control instruction corresponding to the motion track of the light signal.

6. The interactive recognizing system according to claim 1 , wherein the determining unit comprises a storing subunit configured to store a correspondence relationship between a motion track and a control instruction,

wherein for the light signal that is initially determined by the threshold determining subunit as a valid signal, the coordinate recognizing unit recognizes the motion track of the light signal, and the determining unit compares the motion track of the light signal with the motion track stored in the storing subunit, so as to determine a control instruction corresponding to the motion track of the light signal.

7. The interactive recognizing system according to claim 1 , wherein the interactive recognizing system further comprises a feedback unit configured to prompt the control instruction determined by the determining unit.

8. The interactive recognizing system according to claim 7 , wherein the feedback unit comprises at least one of an indicator, a screen and a loudspeaker.

9. A display device comprising a display module and an interactive recognizing system, wherein the interactive recognizing system comprises

a sensing unit configured to receive light signal;

a coordinate recognizing unit configured to recognize a coordinate of the light signal received by the sensing unit on the sensing unit and recognize a motion track of the light signal on the sensing unit;

a determining unit configured to determine a control instruction represented by the motion track; and

an executing unit configured to execute the control instruction;

wherein the determining unit comprises a threshold determining subunit, in which a time threshold that the light signal lasts is stored, and

the threshold determining subunit initially determines the light signal as a valid signal when a duration time of the light signal exceeds the time threshold.

10. The display device according to claim 9 , wherein the sensing unit is a sensing matrix formed by an arrangement of several sensing devices.

11. The display device according to claim 10 , wherein the sensing device is a photosensitive diode.

12. The display device according to claim 9 , wherein the coordinate recognizing unit comprises a horizontal ordinate recognizing subunit and a vertical ordinate recognizing subunit configured to recognize a horizontal ordinate and a vertical ordinate of the light signal received by the sensing unit on the sensing unit, respectively.

13. The display device according to claim 9 , wherein the determining unit comprises a storing subunit configured to store a correspondence relationship between a motion track and a control instruction,

wherein the determining unit compares a motion track of the light signal recognized by the coordinate recognizing unit with a motion track stored in the storing subunit, so as to determine a control instruction corresponding to the motion track of the light signal.

14. The display device according to claim 9 , wherein the determining unit comprises a storing subunit configured to store a correspondence relationship between a motion track and a control instruction,

wherein for the light signal that is initially determined by the threshold determining subunit as a valid signal, the coordinate recognizing unit recognizes the motion track of the light signal, and the determining unit compares the motion track of the light signal with the motion track stored in the storing subunit, so as to determine a control instruction corresponding to the motion track of the light signal.

15. The display device according to claim 9 , wherein the interactive recognizing system further comprises a feedback unit configured to prompt the control instruction determined by the determining unit.

16. The display device according to claim 15 , wherein the feedback unit comprises at least one of an indicator, a screen and a loudspeaker.

17. The display device according to claim 9 , wherein the sensing unit of the interactive recognizing system is arranged on the display module.