JP6478483B2 - Function control device and function control method - Google Patents

Description

  The present invention relates to a function control device and a function control method.

  In devices such as mobile phones, an acceleration sensor may be used to control a function being executed (for example, an alarm). For example, in order to stop the operation being performed with a simple operation, according to Patent Document 1, when the mobile phone is outputting an alarm sound, the acceleration of the mobile phone is detected, and the user turns the mobile phone over. A technology has been proposed to stop the output of an alarm sound when it is determined.

Japanese Patent Application Publication No. 2007-166474

  By the way, when authentication information (for example, an ID / password, an electronic certificate, etc.) which is information for receiving authentication is recorded in a device (for example, wearable device) capable of near field wireless communication, the short distance It is considered that a device capable of wireless communication transmits authentication information to a service providing apparatus (for example, a POS terminal). In this case, it is possible to receive authentication from the service providing apparatus and receive provision of a service (for example, payment service etc.).

  The use of NFC (Near field communication) can be considered as a communication method between the device capable of near field communication and the service providing device. If a device capable of near field communication can always transmit authentication information, there is a risk that unauthorized access such as skimming will be made. Therefore, it is desirable that the device capable of near field communication communicate authentication information to the service providing device only when the user receives a service from the service providing device. That is, it is desirable that the device control the function to execute the function of transmitting the authentication information only when the user receives the service from the service providing apparatus. For this reason, a device capable of near field communication can detect an operation of a user indicating that he / she desires to receive a service from the service providing apparatus, and can transmit authentication information only when the operation is detected. It is possible to do.

  As a method of detecting an operation (a specific operation) indicating that the user desires to receive a service from the service providing apparatus, the operation of the user may be constantly monitored using an acceleration sensor as described in Patent Document 1. Conceivable. However, if the acceleration sensor is operated at all times, the amount of power consumption will increase. Also, certain actions of the user are indeterminate when to take place. Therefore, in order to detect the above-mentioned specific operation with high accuracy, it is desirable to continuously monitor the user's operation.

  The present invention has been made in view of the above, and provides a function control device and a function control method for accurately detecting the user's operation and appropriately controlling the function while suppressing an increase in power consumption. The purpose is to

The function control device according to the present invention is a function control device that executes a function that can be stopped and stopped, and is based on pressure detection means for detecting pressure on the function control device and pressure detected by the pressure detection means. start acceleration sensor or an angular velocity sensor provided in the own device, it detects acceleration or angular velocity of the own device, and movement detecting means for detecting action by the user of the function control device based on the detected result, the operation detecting means And control means for controlling stop or stop of the function based on the detection result by the control unit.

Further, the function control method according to the present invention is a function control method performed by a function control device that executes a function capable of stopping and releasing a stop, and includes a pressure detection step of detecting pressure on the function control device; start acceleration sensor or an angular velocity sensor provided in the own apparatus based on the detected pressure in, detects acceleration or angular velocity of the own device performs the detection of the operation by the user of the function control apparatus on the basis of the detected result And a control step of controlling stop or stop of the function based on a detection result in the operation detection step.

  According to the function control device and the function control method according to the present invention, the detection of the operation by the user of the function control device is started based on the pressure on the function control device. It is possible to control functions based on user's actions. That is, an increase in power consumption can be suppressed. Further, according to the above-mentioned function control device, by detecting the pressure on the function control device before detecting the operation of the function control device by the user, the operation for stopping or stopping the function by the user starts Since (preceding stage) is detected, it is possible to accurately detect the user's operation and appropriately control the function.

  In the function control device according to the present invention, the control means may stop the function after a predetermined time has elapsed since the stop of the function is canceled based on the detection result by the operation detection means. According to this function control device, when the stop of the function is canceled based on the detection result by the operation detection means, the function is stopped after a predetermined time has elapsed since the stop of the function was canceled. It is possible to prevent the stop release of the function from continuing for a long time.

  In the function control device according to the present invention, the operation detection means may cause the control means to stop the detection of the operation by the user based on the stop release or stop of the function. According to such a function control device, when the function is canceled or stopped on the basis of the detection result by the operation detecting means, the detection of the operation by the user is stopped on the basis of the cancellation or stop of the function. It is possible to prevent the unnecessary detection of the operation from continuing.

  Further, in the function control device according to the present invention, the operation detection means may stop the detection of the operation after a predetermined time has elapsed since the start of the detection of the operation by the user of the function control device. Good. In this case, since detection of the operation by the user is stopped after a predetermined time has elapsed since the detection of the operation by the user of the function control apparatus has been started, it is prevented that the user's operation is continued to be detected for a long time can do.

In the function control device according to the present invention, the function control device is a device that can be worn by the user, the pressure detection unit detects the pressure on the portion worn by the user , and the function control device is a ring-shaped device The pressure detection means detects the pressure when the user makes a fist, or the function control device is a bracelet type device and the pressure detection means detects the pressure when the user bends the wrist . According to such a function control device, since the pressure on the part worn by the user is detected, the pressure on the function control device due to the user's movement can be detected more accurately. That is, the function control device can appropriately detect the user's operation start. Further, in the function control method according to the present invention, the function control device is a device that can be worn by the user, and in the pressure detection step, the pressure on the part worn by the user is detected, and the function control device is a ring-shaped device The pressure detection step detects the pressure when the user makes a fist, or the function control device is a bracelet type device and the pressure detection step detects the pressure when the user bends the wrist.

  The function control device according to the present invention may further include near field communication means for performing near field communication, and the control means may control the function of the near field communication by the near field communication means. According to such a function control device, since the function of the near field communication is controlled based on the user operation, it is possible to prevent the near field communication from being always available. Can prevent unauthorized access to the function control device.

Further , according to the function control device described above, the change state of the acceleration or angular velocity to the function control device due to the user's operation is appropriately detected using the result of detecting the acceleration or angular velocity of the own device. The motion can be detected properly.

  According to the present invention, it is possible to accurately detect a user's operation and appropriately control functions while suppressing an increase in power consumption.

It is a block diagram of a wearable device concerning an embodiment of the present invention. It is a figure showing hardware constitutions of a wearable device. It is a figure which shows the example of arrangement | positioning of the pressure sensor of a wearable device. It is a figure which shows the process sequence at the time of lock release. It is a sequence diagram of processing by a wearable device. It is a figure which shows the process sequence at the time of locking.

  Hereinafter, preferred embodiments of a function control device and a function control method will be described in detail with reference to the attached drawings. In the description of the drawings, the same or corresponding elements will be denoted by the same reference symbols, without redundant description.

  FIG. 1 shows functional blocks of the wearable device 1 which is a functional control device according to the embodiment. The wearable device 1 is a device that can be worn by the user, and is a so-called wearable module. The wearable device 1 holds authentication information, which is information for receiving authentication from an external device such as a POS terminal 20 that performs POS cash register operations (various settlements, sales management, etc.), and uses this authentication information. It has the function to make a payment. For example, when the user holds the wearable device 1 over the POS terminal 20, the wearable device 1 transmits the authentication information to the POS terminal 20, and another device (eg, authentication) that can communicate with the POS terminal 20 using the authentication information. An authentication server (not shown) or the like that functions as an authentication organization that manages information authenticates.

  As described above, when authentication is performed by the POS terminal 20 or the authentication server, the POS terminal 20 performs payment processing to provide payment service to the wearable device 1. For example, the POS terminal 20 transmits the authentication information and payment information (for example, information including the purchase place, purchase amount, and purchase item information) to the authentication server as payment processing. The authentication server associates and holds authentication information and the account information of the user corresponding to the authentication information, and performs automatic deduction for the payment amount of payment information from the account corresponding to the authentication information received from the POS terminal 30 . As described above, the wearable device 1 has a function (settlement / authentication function) for making a payment by transmitting the authentication information to the POS terminal 20 by the near field communication function (specifically, near field communication (NFC)). Is realized.

  The wearable device 1 has only a near field communication function as a function of transmitting and receiving information (for example, authentication information) to and from the POS terminal 20. In addition, the wearable device 1 may not have the screen display, the voice output, the function of receiving an operation input, and the like other than the short distance wireless communication function and the function for making a payment. However, it may have those functions. The specific form of the wearable device 1 may be any form such as a ring type, bracelet type (wristband type), wristwatch type, etc. as long as the user can wear it.

  The wearable device 1 holds authentication information which is information for receiving authentication from the authentication server as described above. Specific examples of the authentication information include an ID / password and an electronic certificate. The wearable device 1 receives the authentication information from the authentication server, and holds the authentication information. When the wearable device 1 receives an authentication from the POS terminal 20, the wearable device 1 transmits the held authentication information to the POS terminal 20 by the short distance wireless communication function. Further, the wearable device 1 can control the stop (lock) of the near field communication function and the stop release (lock release). That is, the wearable device 1 executes a function that can be stopped and stopped.

  The wearable device 1 controls the locking of the near field communication function and the unlocking of the near field communication function based on the result of detection by the acceleration sensor, and the like. For example, when the wearable device 1 locks the short-distance wireless communication function, the user holds the wearable device 1 over the operation based on the acceleration of the wearable device 1 detected by the acceleration sensor When it is detected that the user's operation (which indicates desired) is performed, the short distance wireless communication function is unlocked.

  The POS terminal 20 is a POS terminal having an application capable of performing POS cash register operations. The POS terminal 20 also has a short distance wireless communication function (specifically, a communication function by NFC). Therefore, the wearable device 1 and the POS terminal 20 can communicate with each other by near field communication. The POS terminal 20 receives the authentication information from the wearable device 1 and, if the authentication information is valid information, provides the wearable device 1 with a service (such as various types of payment processing). The POS terminal 20 transmits the authentication information received from the wearable device 1 to the authentication server in order to determine whether the authentication information received from the wearable device 1 is valid information, and the authentication information is transmitted from the authentication server. A determination result (i.e., an authentication result by the authentication server) as to whether or not it is valid is received.

  Before describing details of each function of the wearable device 1 of FIG. 1, the hardware configuration of the wearable device 1 shown in FIG. 2 will be described. As shown in FIG. 2, one or more CPUs 101, RAMs and ROMs 103 as main storage units, a pressure sensor 104, an acceleration sensor 105, a communication module 106 as a communication module for near field wireless communication of NFC, a semiconductor memory, etc. The computer system is configured as including a secondary storage device 107 and the like.

The pressure sensor 104 detects the pressure when the pressure sensor 104 is pressed. That is, the pressure sensor 104 detects the pressure on the wearable device 1. The acceleration sensor 105 is, for example, a three-axis acceleration sensor. That is, the acceleration sensor 105 is a sensor that detects acceleration (in units of m / sec ² , for example) in three directions of the XYZ axes applied to the wearable device 1. The acceleration sensor 105 outputs information of the detected acceleration for each of the XYZ axes. The pressure sensor 104 and the acceleration sensor 105 can use what is conventionally known.

  The wearable device 1 causes the pressure sensor 104, the acceleration sensor 105, and the communication module 106 to operate under the control of the CPU 101 by reading predetermined computer software on hardware such as the CPU 101 and the RAM 102 shown in FIG. This is realized by reading and writing data in the RAM 102 and the auxiliary storage device 107. The wearable device 1 may be a microcomputer system in which the CPU 101, the RAM 102, and the like are one integrated circuit.

  Subsequently, functions related to the wearable device 1 will be described. As shown in FIG. 1, the wearable device 1 includes a short distance wireless communication unit 11 (short distance wireless communication means), an authentication information holding unit 12, a pressure detection unit 13 (pressure detection means), and an acceleration detection unit 14 ( Operation detection means) and a function control unit 15 (control means).

  The short distance wireless communication unit 11 is a part that performs near field wireless communication with the POS terminal 20 by NFC. That is, the short distance wireless communication unit 11 is a part that executes the short distance wireless communication function. When the wearable device 1 is located near the POS terminal 20 (in the range where radio waves of near field communication can reach) (for example, when the wearable device 1 is held by the user over the POS terminal 20), the user wears the wearable device 1 as a POS terminal 20), the POS terminal 20 detects that the wearable device 1 is located near the POS terminal 20 by a known technique, and the POS terminal 20 makes a short distance wireless communication request to the wearable device 1. At this time, the short distance wireless communication unit 11 receives the short distance wireless communication request from the POS terminal 20.

  The short distance wireless communication unit 11 notifies the POS terminal 20 that the short distance wireless communication with the POS terminal 20 is permitted, and establishes the short distance wireless communication between the POS terminal 20 and the wearable device 1. That is, the wearable device 1 and the POS terminal 20 are linked. The short distance wireless communication unit 11 can also perform short distance wireless communication with a device other than the POS terminal 20 (for example, a portable terminal having a short distance wireless communication function). Thereby, the short distance wireless communication unit 11 can receive information (for example, authentication information) from an apparatus other than the POS terminal 20.

  When the wear request of the authentication information is received from the POS terminal 20 in the state where the wearable device 1 and the POS terminal 20 are linked, the short distance wireless communication unit 11 POS the authentication information held in the authentication information holding unit 12 Transmit to terminal 20. The short-range wireless communication unit 11 is controlled to lock and unlock the function by the function control unit 15 described later.

  The authentication information holding unit 12 is a part that holds the authentication information received from the authentication server or the like as described above. Specifically, the authentication information holding unit 12 holds the authentication information by storage means such as the RAM 102 or the like. For example, when the authentication information is received from the authentication server and the authentication information is held, the short distance wireless communication unit 11 receives the authentication information from the authentication server via the portable terminal capable of short distance wireless communication, and holds the authentication information The part 12 holds the authentication information.

  The pressure detection unit 13 is a portion that detects the pressure on the wearable device 1. The pressure on the wearable device 1 is due to an external factor, and is generated, for example, by pressing the wearable device 1. The detection of the pressure itself to the wearable device 1 is performed by the pressure sensor 104. The pressure detection unit 13 acquires the result detected by the pressure sensor 104 from the pressure sensor 104. That is, the pressure detection unit 13 inputs, from the pressure sensor 104, the magnitude of the pressure detected by the pressure sensor 104.

  The pressure detection unit 13 determines whether the magnitude of the pressure detected by the pressure sensor 104 exceeds a predetermined threshold. The pressure detection unit 13 implements the determination process by the CPU 101. The above threshold is held by the RAM 102 or the like. Further, the threshold indicates a pressure value corresponding to the previous stage of various operations such as an operation of the user holding up the wearable device 1 to another device such as the POS terminal 20.

  Here, FIG. 3 shows an arrangement example of the pressure sensor 104 in each of the ring-shaped wearable device 1 and the bracelet-shaped wearable device 1. FIG. 3A shows an example of a ring-shaped wearable device 1. In the case of the ring-shaped wearable device 1, two pressure sensors 104 are provided on the outer periphery of the attachment portion of the wearable device 1. Specifically, when the wearable device 1 is attached to the user's finger, an axis passing through the center of the substantially circular attachment portion orthogonal to the axis from the dorsal side of the finger to the ventral side of the finger and the wearable device 1 The pressure sensors 104 are provided at two places where the outer circumferences of the mounting portions cross each other. That is, when the user wears the finger and the user makes a fist, the pressure sensor 104 is provided at a position where the outer periphery of the wear portion of the wearable device 1 contacts the finger next to the worn finger.

  When the user uses the ring-shaped wearable device 1, the user wears the finger on the user's finger while wearing the wearable device 1 and then holds the wearable device 1 to the POS terminal 20. . As described above, before the user holds the wearable device 1 over the POS terminal 20, the pressure on the wearable device 1 from the finger side adjacent to the finger wearing the wearable device 1 causes the user to make a fist (For example, when there are fingers on both sides of the finger wearing the wearable device 1, pressure is applied by being pinched by the fingers on both sides). If a value corresponding to this pressure (for example, a value slightly lower than the value of the pressure) is set as a threshold, the pressure detection unit 13 may use the hand of the user while wearing the wearable device 1 as described above. It is determined that the magnitude of the pressure detected by the pressure sensor 104 has exceeded a threshold value when an operation to make a fist is made. As described above, the pressure detection unit 13 detects a point in time at which the user makes a fist, which is a stage prior to the operation of holding the wearable device 1 over.

  FIG. 3B shows an example of a bracelet type wearable device 1. In the case of the bracelet type wearable device 1, a pressure sensor 104 is provided on the inner circumference of the mounting portion of the wearable device 1 at a position in contact with the side surface of the user's wrist.

  When the user uses the bracelet type wearable device 1, after wearing the wearable device 1 on the user's wrist, the user bends the wrist to bend it (ie, bends the wrist to the outside of the arm); The user holds the wearable device 1 over the POS terminal 20. In this case, since the wearable device 1 is attached to the user's wrist, tension is applied to the wearable device 1 in the direction in which the wrist is bent (the direction of the arrow shown in FIG. 3B). If a value corresponding to a pressure based on the tension (for example, a value slightly lower than the value of the pressure) is set as a threshold, the pressure detection unit 13 causes the user to wear the wearable device 1 as described above. When the wrist is bent, it is determined that the magnitude of the pressure detected by the pressure sensor 104 exceeds the threshold. As described above, the pressure detection unit 13 detects the time when the user bends the wrist, which is the previous step of the operation of holding the wearable device 1 over. In addition, a technique for detecting tension based on the movement of a joint part such as a wrist by the pressure sensor 104 as described above can be realized by a conventional method.

  As described above with reference to FIGS. 3A and 3B, the pressure detection unit 13 detects the pressure on the portion (the outer periphery or the inner periphery of the mounted portion) detected by the pressure sensor 104. Based on the magnitude, the state of the previous stage of the action held by the user is detected. The pressure detection unit 13 may detect the state of the previous stage of another user operation (for example, an operation for locking the function of the wearable device 1).

  When the pressure detection unit 13 determines that the magnitude of the pressure detected by the pressure sensor 104 exceeds the threshold, the pressure detection unit 13 notifies the acceleration detection unit 14 to that effect. The acceleration detection unit 14 starts detection of the user's action in response to the notification. The pressure detection unit 13 continues to operate while power is supplied to the wearable device 1.

  The acceleration detection unit 14 is a part that detects an operation by the user based on the acceleration detected by the acceleration sensor 105. Specifically, when the pressure detection unit 13 determines that the magnitude of the pressure on the wearable device 1 exceeds the threshold, the acceleration detection unit 14 receives the notification of the determination from the pressure detection unit 13. Start up and start detecting the action by the user. That is, the acceleration detection unit 14 starts the detection of the operation by the user based on the pressure detected by the pressure detection unit 13. For example, the acceleration detection unit 14 determines whether a specific operation set in advance is performed based on the acceleration detected by the acceleration sensor 105 as detection of the user's operation. An operation of holding up the wearable device 1 or the like corresponds to this specific operation.

  As described above, when the acceleration sensor 105 is activated, the acceleration detection unit 14 detects an operation by the user based on the detection result of the acceleration sensor 105. That is, the acceleration detection unit 14 acquires the acceleration applied to the wearable device 1 from the acceleration sensor 105 in order to detect an operation by the user. The acceleration applied to the wearable device 1 is due to an external factor, and is generated, for example, when the user wearing the wearable device 1 holds the wearable device 1 over the POS terminal 20. The acceleration sensor 105 detects the magnitude of the acceleration itself. The acceleration detection unit 14 inputs the size in the three directions of the XYZ axes detected by the acceleration sensor 105. Detection of acceleration by the acceleration sensor 105 is performed continuously in time.

  The detection of the user operation by the acceleration detection unit 14 can be realized by applying a known technique. For example, the acceleration detection unit 14 holds in advance the value of the acceleration when the user holds the wearable device 1 (specific operation) in the ROM 103 or the like as unlocking operation determination information. The acceleration detection unit 14 compares the acceleration input from the acceleration sensor 105 with the unlocking operation determination information, and the user wears the acceleration when the acceleration input from the acceleration sensor 105 approximates the unlocking operation determination information. It detects that an operation of holding the device 1 is performed. Here, the fact that the acceleration input from the acceleration sensor 105 and the unlocking operation determination information are similar means that the difference between the acceleration input from the acceleration sensor 105 and the unlocking operation determination information is a predetermined allowable value. It says that it is in the range. Thus, the acceleration detection unit 14 detects an operation by the user based on the detection result of the acceleration sensor 105. The acceleration detection unit 14 causes the CPU 101 to detect an operation by the user based on the detection result of the acceleration sensor 105.

  When it is detected that the user holds the wearable device 1 over the POS terminal 20 (lock release operation), the acceleration detection unit 14 notifies the function control unit 15 that the operation has been detected as a detection result. In response to the notification, the function control unit 15 unlocks the short distance wireless communication function with respect to the short distance wireless communication unit 11. That is, notifying that the acceleration detection unit 14 detects the unlocking operation as described above means that the near-field wireless communication function is unlocked by the function control unit 15.

  In addition, the acceleration detection unit 14 stops the acceleration sensor 105 after notifying the function control unit 15 that the user has detected that the user holds the wearable device 1. That is, the acceleration detection unit 14 stops the detection of the operation by the user based on the unlocking by the function control unit 15 (for example, at the timing of the unlocking).

  Also, the acceleration detection unit 14 starts the detection of the operation by the user based on the pressure detected by the pressure detection unit 13, and then, even when a predetermined time (detection stop time) has elapsed, the acceleration sensor Stop 105 and stop the detection of the action by the user. An example of the detection stop time is a time based on a time when an action by the user is assumed to be detected (eg, a time obtained by adding a buffer time to the time when an action by the user is expected to be detected), It is several seconds to several minutes.

  When the acceleration detecting unit 14 detects an operation of holding the wearable device 1 by the user (that is, an operation for unlocking) as described above, and notifies the function control unit 15 when the operation is detected. However, an operation indicating that the user desires to lock the function, that is, a user operation for locking (for example, an operation such as waving) is detected, and the detection result is sent to the function control unit 15. You may make it notify. In this case, the function control unit 15 locks the short distance wireless communication function according to the notification.

  An example in which the acceleration detection unit 14 detects an operation for locking the short distance wireless communication function will be described. As a premise, it is assumed that storage means such as the ROM 103 holds information (lock operation determination information) indicating a change in acceleration at the time of an operation for locking (operation of waving hand or the like). The acceleration detection unit 14 compares the acceleration input from the acceleration sensor 105 with the held lock operation determination information. Next, when the acceleration detection unit 14 makes the comparison and as a result the acceleration input from the acceleration sensor 105 approximates the lock operation determination information, the user performs an operation to lock the function of the wearable device 1. To detect. Here, that the acceleration input from the acceleration sensor 105 and the lock operation determination information are similar to each other means that the difference between the acceleration input from the acceleration sensor 105 and the lock operation determination information is within a predetermined allowable value range. Say that.

  When the acceleration detection unit 14 starts detection of the user operation for locking based on the pressure detected by the pressure detection unit 13, when a predetermined time (detection stop time) has elapsed, The acceleration sensor 105 may be stopped. Alternatively, the acceleration detection unit 14 may stop the acceleration sensor 105 after notifying the function control unit 15 that the user operation for locking has been detected as a detection result.

  The function control unit 15 is a part that controls locking or unlocking of the function based on the detection result of the acceleration detection unit 14. Specifically, when the function control unit 15 receives the detection result (information indicating that the user has detected the operation of holding the wearable device 1) from the acceleration detection unit 14, the function control unit 15 unlocks the short distance wireless communication function. In addition, the function control unit 15 has a release time (a predetermined time based on the time required to use the function, for example, several seconds to several minutes) after the short distance wireless communication function is unlocked. Lock the short distance wireless communication function after it has elapsed.

  When unlocking the near field communication function, the function control unit 15 notifies the near field communication unit 11 that the near field communication with the external device (for example, the POS terminal 20) is permitted. . As a result, the short distance wireless communication function is transitioned to the unlocked state from the locked state. The short distance wireless communication unit 11 enables the short distance wireless communication according to the notification. In this case, for example, when the short-distance wireless communication request is made from the POS terminal 20, the short-distance wireless communication unit 11 can transmit and receive information mutually according to the short-distance wireless communication request (that is, linked State). As described above, when the function control unit 15 unlocks the short distance wireless communication function, the short distance wireless communication function can transmit the authentication information to the POS terminal 20. That is, when the function control unit 15 unlocks the short-distance wireless communication function, the function (payment / authentication function) for making a payment is unlocked.

  When locking the short distance wireless communication function, the function control unit 15 notifies the short distance wireless communication unit 11 that the short distance wireless communication with an external device (for example, the POS terminal 20) is prohibited. As a result, the near-field wireless communication function is shifted to the locked state from the state where the near-field wireless communication function is unlocked. The short distance wireless communication unit 11 stops the short distance wireless communication in response to the notification. In this case, even if a request for performing near field communication to the wearable device 1 is made from the external device (for example, the POS terminal 20), the near field communication unit 11 is stopped. Do not respond to the request. That is, when the function control unit 15 locks the short-distance wireless communication function, it locks the function (payment / authentication function) for making a payment.

  As described above, when the function control unit 15 locks the short distance wireless communication function, the short distance wireless communication unit 11 does not respond to the short distance wireless communication request from the POS terminal 20. Therefore, the function control unit 15 performs near field communication with another device (for example, the POS terminal 20) when the user is not holding the wearable device 1 (when the lock release operation is not detected). It can prevent that it does.

  Further, as described above, although it has been described that the function control unit 15 locks the short distance wireless communication function after the release time has elapsed since the short distance wireless communication function was unlocked, the function control unit 15 When the detection result (notice that the user operation for locking has been detected is received) from S14, the near field communication function may be locked.

  Subsequently, a procedure from the state in which the near field communication function (NFC function) by NFC is stopped to the point in which the near field communication function is canceled is described with reference to FIG. As a premise, it is assumed that the NFC function is locked by the function control unit 15. The wearable device 1 is assumed to be a bracelet type wearable device. The pressure detection unit 13 appropriately detects the pressure on the wearable device 1, and the acceleration detection unit 14 is in a state in which the acceleration sensor 105 is stopped. That is, the acceleration detection unit 14 stops the detection of the user's operation.

  First, as shown in FIG. 4A, before the user holds the wearable device 1 over the POS terminal 20 (before using the service), the pressure detected by the pressure detection unit 13 does not exceed the threshold, so the acceleration is The detection unit 14 is in a state (OFF state) in which the acceleration sensor 105 is stopped.

  In FIG. 4B, the user moves the wrist to hold the wearable device 1 to the POS terminal 20 (that is, prepares for the holding operation), the pressure detection unit 13 detects the pressure detected from the pressure sensor 104. Detects that the threshold has been exceeded. Next, the pressure detection unit 13 notifies the acceleration detection unit 14 of the detection result. The acceleration detection unit 14 activates the acceleration sensor 105 in response to the notification from the pressure detection unit 13. That is, the acceleration detection unit 14 turns the acceleration sensor 105 on. After activating the acceleration sensor 105, the acceleration detection unit 14 starts detection of a user operation.

  As shown in FIG. 4C, when the user moves the wearable device 1 to the POS terminal 20 (operation required for using the service), the acceleration detection unit 14 detects the operation to move the wearable device 1 to the function control unit. Report the detection result to 15.

  As shown in FIG. 4D, at the timing when the user touches the wearable device 1 on the POS terminal 20, the function control unit 15 receives the detection result from the acceleration detection unit 14, and thus unlocking the NFC function is performed. doing. That is, the function control unit 15 notifies the near field communication unit 11 that the near field communication is permitted. At this time, the wearable device 1 is located near the POS terminal 20, and the function control unit 15 releases the lock, so the near-field wireless communication unit 11 performs near-field wireless communication from the POS terminal 20 Communication request by NFC is received. The short distance wireless communication unit 11 establishes communication with the POS terminal 20 by NFC in response to the request. When receiving the authentication information transmission request from the POS terminal 20, the short distance wireless communication unit 11 transmits the authentication information to the POS terminal 20 in response to the authentication information transmission request. The wearable device 1 receives provision of a payment service by the POS terminal 20. That is, the wearable device 1 can use the payment service.

  Subsequently, processing and operations performed by the wearable device 1 according to the present embodiment will be described using the sequence diagram of FIG. 5. The sequence diagram shown in FIG. 5 detects an operation (specific operation) in which the user holds the wearable device 1 over the POS terminal 20 when the near field communication function of the wearable device 1 is in a locked state, and the specific operation Is a process for releasing the lock of the near field communication function.

  First, the pressure detection unit 13 acquires the pressure detected by the pressure sensor 104 from the pressure sensor 104 (step S1: pressure detection step), and determines whether the acquired pressure exceeds a threshold (step S2: pressure detection) Step). If the pressure detected by the pressure sensor 104 does not exceed the threshold (step S2; NO), the process returns to step S1.

  When the pressure detected by the pressure sensor 104 exceeds the threshold (step S2; YES), the pressure detection unit 13 notifies the acceleration detection unit 14 to that effect, and the acceleration detection unit 14 detects the pressure by the pressure detection unit 13 as described above. In response to the notification, the acceleration sensor 105 is activated. That is, the acceleration detection unit 14 starts detection of a user operation (specific operation) (step S3: operation detection step).

  The acceleration detection unit 14 determines whether or not the specific operation has been performed based on the acceleration detection result of the acceleration sensor 105 (step S4: operation detection step). If the acceleration detection unit 14 does not detect a specific operation (step S4; NO), as long as a predetermined time (detection stop time) has not elapsed since the start of detection of the user operation (step S5 NO), Returning to S4, the determination as to whether or not the specific operation has been made is continued based on the acceleration detection result.

  In step S5, when it is determined that a predetermined time (detection stop time) has elapsed since the start of the detection of the user operation (step S5; YES), the acceleration detection unit 14 stops the acceleration sensor 105. That is, the acceleration detection unit 14 terminates the detection of the user operation (step S6), and returns to step S1.

  When a specific operation is detected in step S4 (step S4; YES), the acceleration detection unit 14 notifies the function control unit 15 of the detection result. In response to the notification, the function control unit 15 notifies the near field communication unit 11 that the near field communication is permitted. That is, the function control unit 15 releases the lock of the near field communication function (step S7: control step). Since the function control unit 15 releases the lock of the short distance wireless communication function, it becomes possible to transmit the authentication information to the POS terminal 20 by the short distance wireless communication function, and the POS terminal 20 performs the authentication for settlement. Can receive. That is, it also unlocks the function for making a payment.

  Further, after notifying the function control unit 15 that the specific operation has been detected, the acceleration detection unit 14 causes the acceleration sensor 105 to stop. That is, the acceleration detection unit 14 ends the detection of the user operation (step S8). The order of steps S7 and S8 may be reversed or may be simultaneous.

  The function control unit 15 determines whether or not a predetermined time (release time) has elapsed after the lock is released (step S9), and when the predetermined time (release time) has elapsed (step S9; YES) The near field communication unit 11 is notified that the near field communication with the external device (for example, the POS terminal 20) is prohibited. That is, the function control unit 15 locks the short distance wireless communication function (step S10), and returns to step S1. As described above, since the function control unit 15 locks the short distance wireless communication function, the function for making a payment is also locked.

  In the above-mentioned embodiment, although the acceleration detection unit 14 detects the user's operation and the function control unit 15 unlocks the short-distance wireless communication function based on the detection result of the user operation, the function is described. The control unit 15 may lock the short distance wireless communication function based on the detection result of the user operation.

  A procedure from releasing the lock of the near field communication function (NFC function) by NFC to locking the near field communication function will be described with reference to FIG. Similar to the example of FIG. 4, the wearable device 1 is a bracelet type wearable device.

  First, as shown in FIG. 6A, when the user holds the wearable device 1 over the POS terminal 20, the acceleration detection unit 14 detects the holding operation. The acceleration detection unit 14 notifies the function control unit 15 that the holding operation has been detected. The function control unit 15 releases the lock of the near field communication function (NFC function) according to the notification (that is, the near field communication section 11 is notified of permitting the near field communication). As a result, the POS terminal 20 can perform near field communication with the wearable device 1, receives authentication information from the wearable device 1, and provides the wearable device 1 with a payment service. Thus, the wearable device 1 can use the service.

  In this state, since the acceleration detection unit 14 detects the holding operation, the acceleration sensor 105 is stopped. Therefore, the acceleration sensor 105 is in the OFF state. Further, since the function control unit 15 unlocks the NFC function, the NFC function is in the process of unlocking.

  Subsequently, as shown in FIG. 6B, the user moves the wrist from the state of holding the wearable device 1 to the POS terminal 20 (that is, preparation for the locking operation), the pressure detection unit 13 It detects that the pressure detection result from the pressure sensor 104 has exceeded a threshold. Subsequently, the pressure detection unit 13 notifies the acceleration detection unit 14 of the detection result. The acceleration detection unit 14 activates the acceleration sensor 105 in response to the notification from the pressure detection unit 13. That is, the acceleration detection unit 14 turns the acceleration sensor 105 on. After activating the acceleration sensor 105, the acceleration detection unit 14 starts detection of a user operation. At this point in time, since the function control unit 15 has not performed lock processing (processing for notifying the short-distance wireless communication unit 11 that short-distance wireless communication is prohibited, processing to notify), the NFC function was unlocked In the state.

  As shown in FIG. 6C, when the user shakes the hand (locking operation), the acceleration detecting unit 14 detects the locking operation, and the function control unit 15 detects the locking operation. The detection result (result indicating that the locking operation has been detected) is notified. Also at this time, since the function control unit 15 does not perform the lock process, the NFC function is in the unlocked state.

  As shown in FIG. 6D, when the function control unit 15 receives the detection result from the acceleration detection unit 14, it notifies the short distance wireless communication unit 11 that the distance wireless communication is prohibited (ie, the NFC function). Lock the As described above, when the user performs an operation for locking, the acceleration detection unit 14 detects the operation for locking, so that the wearable device 1 can easily control the function. Further, the acceleration detection unit 14 causes the function control unit 15 to stop detection of the user operation based on the fact that the NFC function is locked. That is, the acceleration detection unit 14 stops the operation of the acceleration sensor 105.

  Although the method of unlocking the function and the method of locking the function are described by the pressure detection unit 13, the acceleration detection unit 14, and the function control unit 15, the pressure detection unit 13, the acceleration detection unit 14, and the function control Either the function unlocking or the function locking may be performed by the unit 15, or both the function unlocking and the function locking may be performed.

  Although the above embodiment has described the case where the user's operation is detected based on the acceleration detected by the acceleration sensor 105, the wearable device 1 includes an angular velocity sensor (gyro sensor), and the acceleration detection unit 14 The user operation may be detected by a known technique based on the detection result (angular velocity) by the angular velocity sensor. The acceleration detection unit 14 may detect the user's operation by a known technique by combining the acceleration by the acceleration sensor 105 and the angular velocity by the angular velocity sensor.

  In the above-mentioned embodiment, although the pressure detection part 13 described the case where the pressure to the wearable device 1 was detected by the pressure sensor 104, you may make it detect a pressure with a switch or a strain gauge. In the case where the wearable device 1 has a hinge portion, it is conceivable that the strain gauge is provided on the hinge portion.

  In the above-mentioned embodiment, although the case where wearable device 1 was applied as a function control device was described, it may be made to apply a communication terminal (a cellular phone, a smart phone, etc.) as a function control device. In this case, it is conceivable that the pressure detection unit 13 detects the pressure on the communication terminal and detects that the communication terminal is held or held by a known technique.

  In the above-mentioned embodiment, after the pressure detection part 13 detects the pressure which exceeds a threshold value, although the acceleration detection part 14 described the case where a user's action was detected, the pressure detection part 13 detects the pressure which exceeds a threshold value Then, after the pressure falls below the threshold value, the acceleration detection unit 14 may start detecting the user's action. In this case, the present invention can also be applied to the case where the operation of the previous stage detected by the acceleration detection unit 14 is performed only for an instant.

  In the above embodiment, the function control unit 15 notifies the short distance wireless communication unit 11 which executes the short distance wireless communication function at the time of locking to the effect that the short distance wireless communication is prohibited, and the short distance wireless communication Although the lock / unlock control is described by notifying that communication is permitted, the lock / unlock of the function may be controlled by another method (for example, to the target function) Control of power supply etc.

  In addition, although the above-mentioned embodiment described the case where a near field communication function was applied as a function, other various functions may be sufficient.

  In the above embodiment, although the case where the short distance wireless communication unit 11 performs short distance wireless communication by NFC has been described, other methods such as BLE (Bluetooth (registered trademark) Low Energy) or Felica (registered trademark) Near field communication may be performed according to

(Action effect)
According to the wearable device 1 described above, the detection of the action by the user of the wearable device 1 is started based on the pressure on the wearable device 1, so the acceleration detection unit 14 does not constantly detect the action of the user. Control of the near field wireless communication function based on it can be performed. Specifically, since the acceleration detection unit 14 does not activate the acceleration sensor 105 until the pressure detected by the pressure detection unit 13 exceeds the threshold value, the power consumption is higher than when the acceleration sensor 105 is activated at all times. You can reduce the amount. In addition, the acceleration detection unit 14 does not have to monitor the detection result of the acceleration by the acceleration sensor 105 until the acceleration sensor 105 is activated (to detect the user operation by the acceleration of the wearable device 1). That is, there is no need for the CPU 101 (including the CPU part of the microcomputer system) to constantly monitor the acceleration. In addition, the power consumption of the pressure sensor 104 is generally lower than the power consumption of the acceleration sensor 105. Therefore, the wearable device 1 can suppress an increase in power consumption (improve power saving performance).

  Further, according to the above-described wearable device 1, before the acceleration detection unit 14 detects a specific operation by the user of the wearable device 1 (for example, an operation of holding up to the POS terminal 20), the pressure detection unit 13 applies to the wearable device 1. Detect pressure. As described above, the pressure detection unit 13 detects a step (previous step) in which an operation for locking or unlocking the short-distance wireless communication function by the user starts (predicting the start point at which the user starts using the wearable device 1 Therefore, the determination start point (determination start timing) of the user operation can be limited. As described above, since the wearable device 1 does not detect the user operation until the operation for locking or unlocking starts, the above-described operation for locking or unlocking is not started. In addition, it is possible to prevent the user's action from being detected by mistake. That is, the wearable device 1 can accurately detect the user's operation and appropriately control the short distance wireless communication function.

  Further, according to the wearable device 1, the pressure detection unit 13 detects the previous stage of the operation in which the user holds the wearable device 1 (for example, the stage in which the user makes a fist), and the acceleration detection unit 14 detects the user's Start detecting motion. Therefore, the acceleration detection unit 14 can start detection of the user's operation without causing the user to perform another operation (for example, an operation of a push switch) in advance. That is, the wearable device 1 can prevent the user from performing an unnatural operation and impairing the convenience of the user.

  Further, according to the wearable device 1, when the short distance wireless communication function is unlocked based on the detection result by the acceleration detection unit 14, a predetermined time after the unlocking of the short distance wireless communication function is performed. Since the short distance wireless communication function is locked after (the release time) has elapsed, it is possible to prevent the long distance wireless communication function from being unlocked for a long time. That is, the wearable device 1 can unlock the short distance wireless communication only for a certain period (a period required to receive the service) after the user holds the POS terminal 20. The function control unit 15 may unlock the short distance wireless communication function after a predetermined time has elapsed since the lock.

  Further, according to the wearable device 1, when the short distance wireless communication function is unlocked based on the detection result by the acceleration detecting unit 14, the acceleration detection unit is based on the timing of the unlocking of the short distance wireless communication function. 14 stops the detection of the action by the user. Thus, the acceleration detection unit 14 can prevent the user's operation from being unnecessarily detected.

  Further, according to the wearable device 1, after the predetermined time (detection stop time) has elapsed since the acceleration detection unit 14 has started detecting the operation of the wearable device 1 by the user, the acceleration detection unit 14 is operated by the user Since the detection of the movement is stopped, it is possible to prevent the acceleration detection unit 14 from continuously detecting the movement of the user for a long time.

  Further, according to the wearable device 1, the pressure detection unit 13 detects the pressure on the part worn by the user, so the pressure detection unit 13 more accurately detects the pressure on the wearable device 1 due to the movement of the user. be able to. That is, the pressure detection unit 13 can appropriately detect the user's operation start.

  Further, according to the wearable device 1, the function control unit 15 controls locking / unlocking of the function of the short distance wireless communication based on the user operation detected by the acceleration detecting unit 14. As described above, since the function control unit 15 controls the lock / unlock of the function of the near-field wireless communication, it is possible to prevent the state in which the near-field wireless communication can be unnecessarily continued. Unauthorized access (for example, skimming etc.) from the device to the wearable device 1 can be prevented.

  Further, according to the wearable device 1, the operation of the user is detected based on the result of the acceleration detection unit 14 detecting the acceleration or the angular velocity of the own device. As described above, since the wearable device 1 can appropriately detect the change state of the acceleration or the angular velocity to the wearable device 1 due to the operation of the user using the result of detecting the acceleration or the angular velocity of the own device, The user's action can be detected appropriately.

  Reference Signs List 1 wearable device 11 short distance wireless communication unit 12 authentication information holding unit 13 pressure detection unit 14 acceleration detection unit 15 function control unit 20 POS terminal 101 CPU 102 102 RAM , 103: ROM, 104: pressure sensor, 105: acceleration sensor, 106: communication module, 107: auxiliary storage device.

Claims (6)

A function control device that executes a function that can be stopped and released.
Pressure detection means for detecting pressure on the function control device;
The acceleration sensor or angular velocity sensor provided in the own device is activated based on the pressure detected by the pressure detection means, the acceleration or angular velocity of the own device is detected, and the user of the function control device detects the detected result. a movement detecting means for detecting operation,
Control means for controlling stop or stop release of the function based on the detection result by the operation detection means;
Equipped with
The function control device is a device that can be worn by the user,
The pressure detection means detects the pressure on the part worn by the user,
The function control device is a ring type device and the pressure detection means detects the pressure when the user makes a fist, or the function control device is a bracelet type device and the pressure detection means is a user Function control device that detects pressure when the wrist is bent .   The function control device according to claim 1, wherein the control means stops the function after a predetermined time has elapsed since the stop of the function is canceled based on the detection result by the operation detection means.   The function control apparatus according to claim 1, wherein the operation detection unit causes the control unit to stop the detection of the operation by the user based on cancellation or stop of the function.   The operation detection unit stops detection of the operation after a predetermined time has elapsed since the user of the function control device started detection of the operation. Function control device as described. The near field communication means for performing near field communication is further provided,
The function control device according to any one of claims 1 to 4 , wherein the control means controls the function of near field communication by the near field communication means. A function control method performed by a function control device that executes a function capable of stopping and releasing a stop,
A pressure detection step of detecting pressure on the function control device;
Based on the pressure detected in the pressure detection step, the acceleration sensor or angular velocity sensor provided in the own device is activated to detect the acceleration or angular velocity of the own device, and the user of the function control device detects the acceleration or angular velocity. An operation detection step of detecting an operation;
A control step of controlling stop or stop of the function based on a detection result in the operation detection step;
Only including,
The function control device is a device that can be worn by the user,
In the pressure detection step, the pressure on the portion worn by the user is detected;
The function control device is a ring-shaped device and detects a pressure when the user makes a fist in the pressure detection step, or the function control device is a bracelet type device and the user in the pressure detection step. Function control method to detect pressure when the wrist is bent .

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