Information reading system, reading control device, reading control method, and recording medium
First Claim
Patent Images
1. An information reading system comprising:
- a passive-type IC tag that identifies a device installed on a side of an environment;
a tag reader that reads identification information of the passive-type IC tag;
a sensor unit that detects a touch operation performed with respect to the passive-type IC tag; and
a reading control unit that, when the sensor unit detects a touch operation, activates the tag reader and controls a timing of reading the passive-type IC tag, whereinthe reading control unit activates a watchdog timer (WDT), monitors a timeout, monitors, using the watchdog timer, whether or not a predetermined period of time has elapsed since a switch has switched to an OFF state, and instructs, when the watchdog timer times out, a handheld device to stop driving the tag reader so as to end reading information from the passive-type IC tag, andthe sensor unit monitors and obtains an output of a motion sensor, estimates a movement locus of a finger gadget from the output of the motion sensor every time the output of the motion sensor is obtained, calculates a position of the finger gadget, obtains a speed by integrating an acceleration, obtains a distance by further integrating the speed, based on an orientation obtained along with the acceleration, and calculates a movement distance from an initial position by accumulating and synthesizing, for each sampling period, vectors of movement distance and direction.
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Abstract
An information reading system includes a passive-type IC tag that identifies a device installed on side of an environment, a tag reader that reads identification information of the passive-type IC tag, a sensor unit that detects a touch operation performed with respect to the passive-type IC tag, and a reading control unit that, when the sensor unit detects a touch operation, activates the tag reader and controls timing of reading the passive-type IC tag.
12 Citations
13 Claims
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1. An information reading system comprising:
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a passive-type IC tag that identifies a device installed on a side of an environment; a tag reader that reads identification information of the passive-type IC tag; a sensor unit that detects a touch operation performed with respect to the passive-type IC tag; and a reading control unit that, when the sensor unit detects a touch operation, activates the tag reader and controls a timing of reading the passive-type IC tag, wherein the reading control unit activates a watchdog timer (WDT), monitors a timeout, monitors, using the watchdog timer, whether or not a predetermined period of time has elapsed since a switch has switched to an OFF state, and instructs, when the watchdog timer times out, a handheld device to stop driving the tag reader so as to end reading information from the passive-type IC tag, and the sensor unit monitors and obtains an output of a motion sensor, estimates a movement locus of a finger gadget from the output of the motion sensor every time the output of the motion sensor is obtained, calculates a position of the finger gadget, obtains a speed by integrating an acceleration, obtains a distance by further integrating the speed, based on an orientation obtained along with the acceleration, and calculates a movement distance from an initial position by accumulating and synthesizing, for each sampling period, vectors of movement distance and direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A reading control device comprising:
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a sensor unit that detects a touch operation performed with respect to a passive-type IC tag which identifies a device installed on a side of an environment; and a reading control unit that, when the sensor unit detects a touch operation, activates a tag reader, which reads identification information of the passive-type IC tag, and controls a timing of reading the passive-type IC tag wherein the reading control unit activates a watchdog timer (WDT), monitors a timeout, monitors, using the watchdog timer, whether or not a predetermined period of time has elapsed since a switch has switched to an OFF state, and instructs, when the watchdog timer times out, a handheld device to stop driving the tag reader so as to end reading information from the passive-type IC tag, and the sensor unit monitors and obtains an output of a motion sensor, estimates a movement locus of a finger gadget from the output of the motion sensor every time the output of the motion sensor is obtained, calculates a position of the finger gadget, obtains a speed by integrating an acceleration, obtains a distance by further integrating the speed, based on an orientation obtained along with the acceleration, and calculates a movement distance from an initial position by accumulating and synthesizing, for each sampling period, vectors of movement distance and direction.
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13. A reading control method comprising:
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detecting a touch operation performed with respect to a passive-type IC tag which identifies a device installed on a side of an environment; and controlling that, when a touch operation is detected, includes activating a tag reader, which reads identification information of the passive-type IC tag, and controlling a timing of reading the passive-type IC tag, wherein the controlling includes activating a watchdog timer (WDT), monitoring a timeout, monitoring, using the watchdog timer, whether or not a predetermined period of time has elapsed since a switch has switched to an OFF state, and instructing, when the watchdog timer times out, a handheld device to stop driving the tag reader so as to end reading information from the passive-type IC tag, and the detecting includes monitoring and obtaining an output of a motion sensor, estimating a movement locus of a finger gadget from the output of the motion sensor every time the output of the motion sensor is obtained, calculating a position of the finger gadget, obtaining a speed by integrating an acceleration, obtaining a distance by further integrating the speed, based on an orientation obtained along with the acceleration, and calculating a movement distance from an initial position by accumulating and synthesizing, for each sampling period, vectors of movement distance and direction.
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Specification