APPARATUS AND METHOD FOR SENSING OBJECT STATE

• US 20150186312A1
• Filed: 12/10/2014
• Published: 07/02/2015
• Est. Priority Date: 12/27/2013
• Status: Abandoned Application

• Current Assignee: Petari Incorporation
• Original Assignee: Petari Incorporation
• Inventors: Park, Young Jin, Kim, Young Gwan
• Application Number:
  US14/565,685
• Publication Number:
  US 20150186312A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 13/32 using combination of interrupt and burst mode transfer
• CPC Class Codes: G06F 13/4027 using bus bridges G06F13/4022 takes precedence

Abstract

Provided is an apparatus for sensing an object state. The apparatus includes: a power supply unit configured to supply power; a sensor unit supplied with power from the power supply unit to generate an interrupt signal when a state change of object is detected; a processing unit configured to process the state change of object according to the interrupt signal as at least part of the processing unit is activated in a certain cycle; and a memory configured to store the interrupt signal generated from the sensor unit.

Claims

1. An apparatus for sensing an object state, the apparatus comprising:

a power supply unit configured to supply power;

a sensor unit supplied with power from the power supply unit to generate an interrupt signal when a state change of object is detected;

a processing unit configured to process the state change of object according to the interrupt signal as at least part of the processing unit is activated in a certain cycle; and

a memory configured to store the interrupt signal generated from the sensor unit.

2. The apparatus of claim 1, wherein the power supply unit comprises a battery that supplies power to the sensor unit and the processing unit.

3. The apparatus of claim 1, wherein the sensor unit comprises at least one sensor that generates the interrupt signal whenever the state of object is changed.

4. The apparatus of claim 1, wherein the processing unit comprises:

an operation unit supplied with power intermittently from the power supply unit to be activated, and applies filtering and aggregation to the interrupt signal according to a cycle of occurrence of the interrupt signal stored in the memory; and

a controller supplied with power continuously from the power supply unit to store the interrupt signal in the memory, and outputs a processing result of the operation unit.

5. The apparatus of claim 4, wherein the processing unit removes the interrupt signal generated in a cycle longer than a set cycle by applying the filtering, and integrates the interrupt signal generated in a cycle shorter than the set cycle by applying the aggregation to detect a start time and an end time of the state change of object

6. The apparatus of claim 4, wherein the operation unit applies the filtering and the aggregation at least one time.

7. The apparatus of claim 4, wherein the processing unit further comprises a power controller that controls the power supplied from the power supply unit to supply power continuously to the controller, and supplies power intermittently to the operation unit.

8. The apparatus of claim 2, wherein the processing unit comprises:

an operation unit supplied with power intermittently from the power supply unit to be activated, and applies filtering and aggregation to the interrupt signal according to a cycle of occurrence of the interrupt signal stored in the memory; and

a controller supplied with power continuously from the power supply unit to store the interrupt signal in the memory, and outputs a processing result of the operation unit.

9. The apparatus of claim 8, wherein the processing unit removes the interrupt signal generated in a cycle longer than a set cycle by applying the filtering, and integrates the interrupt signal generated in a cycle shorter than the set cycle by applying the aggregation to detect a start time and an end time of the state change of object

10. The apparatus of claim 8, wherein the operation unit applies the filtering and the aggregation at least one time.

11. The apparatus of claim 8, wherein the processing unit further comprises a power controller that controls the power supplied from the power supply unit to supply power continuously to the controller, and supplies power intermittently to the operation unit.

12. An apparatus for sensing an object state, the apparatus comprising:

a sensor unit configured to generate on/off signals for a certain time according to a state change of object; and

a processing unit configured to compare an interval between adjacent on signals among the generated on signals with a preset interval to detect the state change of object.

13. The apparatus of claim 12, wherein the sensor unit is continuously activated to detect the state change of object, and the processing unit is activated according to a certain cycle to detect a starting point and an end point of the state change of object.

14. The apparatus of claim 12, wherein the sensor unit comprises at least one of an optical sensor, an ultrasonic sensor, an infrared sensor, an acceleration sensor, a temperature sensor, a pressure sensor, a tactile sensor, and an angular velocity sensor.

15. The apparatus of claim 12, wherein the processing unit compares an interval between adjacent on signals among the generated on signals with a preset interval and integrates the on signals when the interval is shorter than the preset interval, and compares an interval between adjacent on signals among the generated on signals with a preset interval and removes the on signals when the interval is longer than the preset interval.

16. The apparatus of claim 12, wherein the sensor unit comprises:

an amplifier configured to amplify a sensing signal for sensing the state change of object; and

a comparator configured to compare the amplified signal with a preset reference signal and generate an on signal when the amplified signal is higher than the reference signal.

17. A method for sensing an object state, the method comprising:

maintaining an activated state of at least part of a processing unit, and maintaining an deactivated state of the remaining part of the processing unit;

generating an interrupt signal by detecting a state change of object by a sensor unit;

storing the interrupt signal in a memory; and

generating a state change detection signal by performing a filtering and an aggregating at least one time to the interrupt signal stored in the memory as the part of the processing unit is activated in a set cycle.

18. The method of claim 17, wherein the processing unit comprises:

a controller supplied with power continuously from a power supply unit; and

an operation unit supplied with power intermittently to be activated.

19. The method of claim 18, wherein the controller stores the interrupt signal generated from the sensor unit in the memory, and provides the interrupt signal stored in the memory.

20. The method of claim 19, wherein the operation unit is supplied with the interrupt signal stored in the memory through the controller, and performs a filtering and an aggregation according to a cycle of occurrence of the interrupt signal.

21. The method of claim 20, wherein the operation unit removes the interrupt signal generated in a cycle longer than a set cycle by applying the filtering, and integrates the interrupt signal generated in a cycle shorter than the set cycle by applying the aggregation to detect a start time and an end time of the state change of object.