ARTIFICIAL INTELLIGENT SYSTEM INCLUDING PRE-PROCESSING UNIT FOR SELECTING VALID DATA

• US 20190311291A1
• Filed: 04/09/2019
• Published: 10/10/2019
• Est. Priority Date: 04/10/2018
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: KIM, Sung Eun, PARK, Seong Mo, OH, Kwang IL, KANG, Tae Wook, PARK, Mi Jeong, PARK, Hyung-IL, LEE, Jae-Jin, LIM, In Gi
• Granted Patent: US 11,216,747 B2
• Time in Patent Office: Days
• CPC Class Codes: G01R 19/00 Arrangements for measuring currents or voltages or for indicating presence or sign thereof G01R5/00 takes precedence; for measuring bioelectric currents or voltages A61B5/24
• CPC Class Codes: G01R 19/10 Measuring sum, difference or ratio
• CPC Class Codes: G06N 20/00 Machine learning
• CPC Class Codes: G06N 3/049 Temporal neural networks, e.g. delay elements, oscillating neurons or pulsed inputs
• CPC Class Codes: G06N 3/065 Analogue means
• CPC Class Codes: G06N 5/02 Knowledge representation; Symbolic representation

Abstract

Provided is an artificial intelligence system. The system includes a first sensor configured to generate a first sensing signal during a sensing time, a second sensor disposed adjacent to the first sensor and configured to generate a second sensing signal during the sensing time, a pre-processing unit configured to select valid data according to a magnitude of a differential signal generated based on a difference between the first sensing signal and the second sensing signal, and an artificial intelligence module configured to analyze the valid data to generate result data.

Claims

1. An artificial intelligence system comprising:

a first sensor configured to generate a first sensing signal during a sensing time;

a second sensor disposed adjacent to the first sensor and configured to generate a second sensing signal during the sensing time;

a pre-processing unit configured to select valid data according to a magnitude of a differential signal generated based on a difference between the first sensing signal and the second sensing signal; and

an artificial intelligence module configured to analyze the valid data to generate result data.

2. The artificial intelligence system of claim 1, wherein the pre-processing unit comprises:

a differential amplification circuit configured to generate the differential signal based on the difference between the first sensing signal and the second sensing signal; and

a comparison circuit configured to select the valid data based on a comparison result of the differential signal and a reference signal.

3. The artificial intelligence system of claim 2, wherein the comparison circuit selects the differential signal as the valid data and outputs the differential signal to the artificial intelligence module when the magnitude of the differential signal is larger than a magnitude of the reference signal.

4. The artificial intelligence system of claim 2, wherein when the magnitude of the differential signal is less than or equal to a magnitude of the reference signal, the comparison circuit selects the differential signal as invalid data and remove the differential signal.

5. The artificial intelligence system of claim 1, wherein the pre-processing unit comprises:

a differential amplification circuit configured to generate the differential signal based on the difference between the first sensing signal and the second sensing signal;

a comparison circuit configured to generate an enable signal based on a comparison result between the differential signal and the reference signal; and

a data transfer circuit configured to output the differential signal as the valid data when the enable signal is received.

6. The artificial intelligence system of claim 1, further comprising a third sensor disposed adjacent to the first sensor and configured to generate a third sensing signal during the sensing time,

wherein the first sensor and the second sensor are disposed adjacent to each other in a first direction, and the first sensor and the third sensor are disposed adjacent to each other in a second direction intersecting the first direction,

wherein the pre-processing unit further selects the valid data according to a magnitude of a differential signal generated based on a difference between the first sensing signal and the third sensing signal.

7. The artificial intelligence system of claim 6, wherein the pre-processing unit comprises:

a first pre-processing circuit configured to generate a first differential signal based on the difference between the first sensing signal and the second sensing signal and outputs the first differential signal to the artificial intelligence module when a magnitude of the first differential signal is larger than a magnitude of a reference signal; and

a second pre-processing circuit configured to generate a second differential signal based on the difference between the first sensing signal and the third sensing signal and outputs the second differential signal to the artificial intelligence module when a magnitude of the second differential signal is larger than the magnitude of the reference signal.

8. The artificial intelligence system of claim 6, further comprising a fourth sensor disposed adjacent to the second sensor in the second direction and disposed adjacent to the third sensor in the first direction and configured to generate a fourth sensing signal during the sensing time,

wherein the pre-processing unit is configured to further select the valid data according to a magnitude of a differential signal generated based on a difference between the second sensing signal and the fourth sensing signal and a magnitude of a differential signal generated based on a difference between the third sensing signal and the fourth sensing signal.

9. The artificial intelligence system of claim 1, further comprising an artificial intelligence hub device for determining a state of a periphery of the first sensor and the second sensor based on the result data.

10. The artificial intelligence system of claim 9, wherein the pre-processing unit selects the valid data based on a comparison result between the differential signal and the reference signal,

wherein the artificial intelligence hub device learns the result data or the valid data and resets the reference signal.

11. The artificial intelligence system of claim 1, wherein the artificial intelligence module determines a state of a periphery of the first sensor and the second sensor when receiving the valid data,

12. An artificial intelligence system comprising:

a sensor configured to generate a first sensing signal during a first sensing time and a second sensing signal during a second sensing time after the first sensing time;

a pre-processing unit configured to select valid data according to a magnitude of a differential signal generated based on a difference between the first sensing signal and the second sensing signal; and

an artificial intelligence module configured to analyze the valid data and generate result data.

13. The artificial intelligence system of claim 12, wherein the pre-processing unit comprises:

a differential amplification circuit configured to generate the differential signal based on the difference between the first sensing signal and the second sensing signal; and

a comparison circuit configured to select the differential signal as the valid data and output the differential signal to the artificial intelligence module when the differential signal is larger than a reference signal.

14. The artificial intelligence system of claim 13, wherein the pre-processing unit further comprises a storage element for storing the first sensing signal during the first sensing time and outputting the first sensing signal to the differential amplification circuit when the second sensing signal is inputted to the differential amplification circuit.

15. The artificial intelligence system of claim 12, wherein the pre-processing unit comprises:

a differential amplification circuit configured to generate the differential signal based on the difference between the first sensing signal and the second sensing signal;

a comparison circuit configured to generate an enable signal when the differential signal is greater than a reference signal; and

a data transfer circuit configured to output the differential signal as the valid data to the artificial intelligence module based on the enable signal.

16. The artificial intelligence system of claim 12, further comprising an adjacent sensor disposed adjacent to the sensor and configured to generate a third sensing signal during the first sensing time and generate a fourth sensing signal during the second sensing time,

wherein the pre-processing unit is configured to further select valid data according to a magnitude of a differential signal generated based on a difference between the first sensing signal and the third sensing signal and a magnitude of a differential signal generated based on a difference between the second sensing signal and the fourth sensing signal.