WO2018058605A1 - 一种获得进行用户相关操作时的距离阈值的方法和装置 - Google Patents

一种获得进行用户相关操作时的距离阈值的方法和装置 Download PDF

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Publication number
WO2018058605A1
WO2018058605A1 PCT/CN2016/101265 CN2016101265W WO2018058605A1 WO 2018058605 A1 WO2018058605 A1 WO 2018058605A1 CN 2016101265 W CN2016101265 W CN 2016101265W WO 2018058605 A1 WO2018058605 A1 WO 2018058605A1
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Prior art keywords
mobile terminal
wearable device
distance
user
related operation
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PCT/CN2016/101265
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English (en)
French (fr)
Inventor
许哲
黄曦
蒋洪睿
林诤
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201680072880.0A priority Critical patent/CN108369627B/zh
Priority to PCT/CN2016/101265 priority patent/WO2018058605A1/zh
Publication of WO2018058605A1 publication Critical patent/WO2018058605A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for obtaining a distance threshold when performing user related operations.
  • the wearable device can be bound to other existing terminal devices, and the terminal device can obtain information accessing and receiving capabilities.
  • the terminal (such as a mobile phone) and the wearable device can be bound by a near field communication method, and the near field communication method can be Bluetooth, WiFi (Wireless Fidelity) or the like.
  • the binding method if it is an Android device, it can be performed by the Android Wear App on the Android phone. If it is an iOS device, it can be performed by the Watch App on the iPhone. After binding, the wearable device can receive messages from the bound mobile phone.
  • Password-free operation can be achieved by binding the wearable device (such as a wristband):
  • the user After the bracelet is bound to the user's device account, the user does not need to enter the unlock password. Just use the ring to close the phone and unlock the phone through the bound bracelet.
  • the existing wearable device as a trusted device only relies on connection status detection, as long as it is within the range of Bluetooth connection (up to 10-15 meters indoors and 50 meters outdoors), no distance limit, no secret unlocking, transfer And payment, so there is the issue of payment security and user privacy.
  • Embodiments of the present invention provide a method and apparatus for obtaining a distance threshold when performing a user-related operation. Compared with the prior art, a distance threshold when the mobile terminal performs the user-related operation is smaller than a short-range wireless communication connection range. Limit the threshold.
  • an embodiment of the present invention provides a method for obtaining a distance threshold when a user-related operation is performed, including: the mobile terminal receiving a short-range wireless communication signal that is sent by the wearable device when a first event occurs; Obtaining, by the mobile terminal, a distance between the wearable device and the mobile terminal when the first event occurs; the mobile terminal calculating, according to the distance, the mobile terminal performing the user related operation A distance threshold between the wearable device and the mobile terminal.
  • the mobile terminal acquires the distance between the wearable device and the mobile terminal when the first event occurs by receiving the short-range wireless communication signal sent by the wearable device when the first event occurs. And calculating a distance threshold between the wearable device and the mobile terminal when the mobile terminal performs the user-related operation, so that a distance threshold when the mobile terminal performs the user-related operation is smaller than a short-range wireless communication connection range.
  • the limit threshold for example, the limit threshold of Bluetooth: indoors can be 10-15 meters, outdoor 50 meters), so the mobile terminal is more secure when performing the user-related operations.
  • the user related operation includes: unlocking the mobile terminal, the mobile terminal paying through the wearable device, and seeing the notification received by the mobile terminal content.
  • the acquiring, between the wearable device and the mobile terminal, when the short-range wireless communication signal is sent includes: the distance acquired by The received signal strength of the short-range wireless communication signal indicates that the RSSI is calculated.
  • a method of calculating the distance between the wearable device and the mobile terminal is provided herein.
  • the first event includes: using the mobile terminal .
  • the using the mobile terminal includes: making a call, operating an application, and browsing content in the mobile terminal.
  • the first event comprises: the mobile terminal and the The connection status of the wearable device has changed.
  • the first event comprises: on the wearable device Processing the notification message received by the mobile terminal.
  • the first event comprises: the mobile terminal scanning the The QR code on the wearable device.
  • an embodiment of the present invention provides a mobile terminal, including: a receiver, configured to receive a short-range wireless communication signal sent by the wearable device when a first event occurs; and an acquireer configured to acquire the a distance between the wearable device and the mobile terminal when the first event occurs; a calculator, configured to calculate, according to the distance, the wearable device and the mobile terminal when the mobile terminal performs a user-related operation The distance between the thresholds.
  • the mobile terminal acquires the distance between the wearable device and the mobile terminal when the first event occurs by receiving the short-range wireless communication signal sent by the wearable device when the first event occurs. And calculating a distance threshold between the wearable device and the mobile terminal when the mobile terminal performs the user-related operation, so that a distance threshold when the mobile terminal performs the user-related operation is smaller than a short-range wireless communication connection range.
  • the limit threshold for example, the limit threshold of Bluetooth: indoors can be 10-15 meters, outdoor 50 meters), so the mobile terminal is more secure when performing the user-related operations.
  • the user related operation includes: unlocking the mobile terminal, where the mobile terminal pays through the wearable device, and sees the notification received by the mobile terminal. content.
  • the acquiring, between the wearable device and the mobile terminal, when the short-range wireless communication signal is sent includes: the distance acquired by The received signal strength of the short-range wireless communication signal indicates that the RSSI is calculated.
  • a method of calculating the distance between the wearable device and the mobile terminal is provided herein.
  • the first event includes: using the mobile terminal .
  • the using the mobile terminal includes: making a call, operating an application, and browsing content in the mobile terminal.
  • the first event includes: the mobile terminal and the The connection status of the wearable device has changed.
  • the first event includes: on the wearable device Processing the notification message received by the mobile terminal.
  • the first event includes: the mobile terminal scanning the The QR code on the wearable device.
  • the distance between the wearable device and the mobile terminal when the short-range wireless communication signal is sent is obtained, including: the distance is RSSI received by the mobile terminal The timestamp in the calculation is obtained.
  • the above timestamp includes the transmission time and reception time of the RSSI.
  • the reception time is subtracted from the transmission time, and twice the time difference obtained is multiplied by the speed at which the sound propagates, which is the distance between the transmitting end and the receiving end.
  • the mobile terminal acquires the distance between the wearable device and the mobile terminal when the first event occurs by receiving the short-range wireless communication signal sent by the wearable device when the first event occurs. And calculating a distance threshold between the wearable device and the mobile terminal when the mobile terminal performs the user-related operation, so that a distance threshold when the mobile terminal performs the user-related operation is smaller than a short-range wireless communication connection range.
  • the limit threshold for example, the limit threshold of Bluetooth: indoors can be 10-15 meters, outdoor 50 meters), so the mobile terminal is more secure when performing the user-related operations.
  • FIG. 1 is a schematic structural diagram of a mobile terminal device and a wearable device according to a first embodiment of the present invention
  • FIG. 2 is a flowchart of a method for obtaining a distance threshold between a wearable device and the mobile terminal when the mobile terminal performs a user-related operation in the second embodiment of the present invention
  • FIG. 3 is a flowchart of a method for obtaining a distance threshold between a wearable device and the mobile terminal when the mobile terminal performs a user-related operation in the third embodiment of the present invention
  • FIG. 4 is a flowchart of a method for obtaining a distance threshold between a wearable device and the mobile terminal when the mobile terminal performs a user-related operation in the fourth embodiment of the present invention.
  • a short-range communication wireless local area network includes a mobile terminal device 10 and a wearable device 20.
  • the mobile terminal device 10 can be a smart phone, a tablet, a laptop, or the like.
  • the wearable device 20 can be a watch, a bracelet, a ring, glasses, and the like.
  • the mobile terminal device 10 includes a processor, a wireless communicator, a Bluetooth communicator, an audio input/output (I/O), a memory, a touch screen, and an inertial sensor.
  • the wireless communicator transmits and receives communication signals under the control of the processor, and can access the Internet, the application server, and acquire data sent to the mobile terminal device. Signals that can be used include WiFi, wireless data networks, and the like.
  • the Bluetooth communicator performs Bluetooth communication with other Bluetooth devices in the vicinity of the mobile terminal device under the control of the processor.
  • the audio I/O is controlled by the processor to process various sounds, voices or audio associated with the mobile terminal device.
  • the memory is used to store programs that control individual functional units, or intermediate variable data generated by intermediate processes that store processor operations.
  • the touch screen displays image data generated by the processor, receives a user's screen touch operation, and provides the processor with various touch screen inputs that the user inputs to operate the mobile terminal device.
  • the inertial sensor determines the posture change of the device, determines the motion state of the device, and can detect the movement of the user's arm, such as turning the wrist, rotating the arm, raising the arm, and the like.
  • the inertial sensor may include an acceleration sensor, a gyroscope, a magnetic field sensor, or the like.
  • the wearable device 20 in the figures can be a smart watch, a wristband, a wristband, or other form of wearable device. These include processors, wireless communicators, Bluetooth communicators, audio input/output (I/O), memory, touch screens, vibration motors, inertial sensors, and more.
  • the vibration motor receives the processing control command to vibrate, and the user prompts the user to occur such as receiving a notification message, a calendar alarm, and the like.
  • Other functional units are similar to mobile terminal devices.
  • the data can be exchanged using Bluetooth wireless communication within the Bluetooth communication distance. It includes transferring data in various formats such as pictures, texts, characters, images, and data streams between two devices.
  • Wearable devices that support wear detection and wear status synchronization
  • the user For a wearable device (such as a watch/brace/glasses, etc.), the user adds it as a trusted device for the first time in step 201 shown in FIG. 2, and in step 202 the mobile phone sets an RSSI for the wearable device (The received signal strength indicator, Received Signal Strength Indicator), such as -80dbm (decibel relative to one milliwatt) (such as the mobile phone detects the signal strength of the wearable device, the distance between the two is about 5m ) to ensure that users can use smart unlocking at the beginning.
  • the received signal strength indicator such as -80dbm (decibel relative to one milliwatt)
  • A is the Bluetooth signal strength received at 1 meter, in dBm.
  • d is the distance unit in meters,
  • n is the transmission constant, usually in the range of 2.7 to 4.3.
  • the wearable device discovers through the wear detection that the user has worn the wearable device.
  • the detecting user has worn the wearable device and can pass a PPG (photoplethysmography) sensor on the wearable device.
  • a PPG photoplethysmography
  • the switch can be used. If the wearable device needs to be pressed after the button is pressed, the user can determine whether the user has taken off the wearable device by judging whether there is a user button.
  • the acceleration sensor on the wearable device can also determine whether there is a user activity signal, such as walking, exercising, etc., indicating that the user is carrying the wearable device.
  • the wearable device After the wearable device detects that the user wears the wearable device, the wearable device sends a state in which the wearable device has been worn by the wearable device to the bound mobile phone.
  • the mobile phone can periodically inquire about the wearing state of the wearable device, or the wearable device periodically reports the wearing state to the mobile phone, and the successful communication between the two parties considers that the wearing state of the wearable device is updated successfully, and any party who does not communicate successfully considers that The wearable device is detached.
  • the wearable device disconnection notification may also be sent to the mobile phone by the wearable device.
  • the user operates the mobile phone in the first substep of step 205.
  • the RSSI value of the watch when the user uses the mobile phone (calling, operating the app, browsing the mobile phone content, etc.).
  • the mobile phone detects that the connection state of the watch changes, and the mobile phone records the RSSI value when the connection state of the watch changes.
  • the RSSI threshold of the unlocked mobile phone required for the user to make a phone call when using the mobile phone while wearing the watch (requires the wristband to synchronize the wearing state to the mobile phone).
  • the RSSI threshold value of the unlocked mobile phone may be set to the maximum value, the average value, the weighted average value, the highest frequency of occurrence, or the combination of the previous methods, or the like, which is obtained in step 205, or other methods are not limited.
  • the RSSI threshold may be extended and appropriately relaxed, so that the user can use the smart unlock in most scenarios.
  • the RSSI threshold is calculated according to Equation 1 above and the corresponding distance threshold is 30 cm, which can be extended to 60 cm or 1 meter.
  • the sampled distance is calculated according to the sampled RSSI value and the formula 1, and the distance threshold of the unlocked mobile phone required when the user is using the mobile phone while wearing the watch is calculated.
  • the maximum value, the average value, the weighted average value, the highest frequency of occurrence, or the combination of the previous method may be set by the distance of the unlocked mobile phone in the step, or the other methods are not limited.
  • step 207 the distance threshold obtained in step 206 is expanded and appropriately relaxed to allow the user to use smart unlocking in most scenarios.
  • this distance threshold is 30 cm and can be extended to 60 cm or 1 meter.
  • the second embodiment of the present invention when calculating the connection threshold of the mobile phone and the wearable device, the distance threshold or the RSSI threshold of the mobile phone, realizes the setting of the distance threshold of the user-related operation when the mobile phone and the wearable device are connected, thus When the mobile phone and the wearable device are connected User-related operations are more secure.
  • the user-related operations herein include unlocking the mobile terminal, the mobile terminal paying through the wearable device, seeing the content of the notification received by the mobile terminal, making a call, accessing user data, and the like.
  • the RSSI distribution of the user for 24 hours or longer is collected to calculate a reasonable RSSI threshold.
  • the mobile phone In combination with the sleep state; if the user detects that the user is in a sleep state by the mobile phone or the watch at night, or the mobile phone receives a message that the user is in a sleep state, the mobile phone disables the smart unlock.
  • the physiological characteristic signals (such as pulse, breathing, electrocardiogram, and brain electricity) of the wearer can be collected by sensors such as ppg, ecg (electrocardiogram electrocardiogram) or eeg (electron electrocephalography), and the signal is judged.
  • sensors such as ppg, ecg (electrocardiogram electrocardiogram) or eeg (electron electrocephalography)
  • ppg ppg
  • ecg electrocardiogram electrocardiogram
  • eeg electrocardiogram electrocephalography
  • the ppg signal is obtained by the optical PPG sensor module or the camera module, and the heartbeat and respiratory rhythm (HRV, Heart Rate Variability) can be read by the ppg signal, and the heartbeat rhythm is slowed by the HRV, and the heart rate in the sleep state is met. Then the user enters a state of falling asleep.
  • HRV Heart Rate Variability
  • the acceleration sensor determining that the user is not active.
  • the handset begins timing.
  • the mobile phone counts the RSSI signal strength of the bound wearable device during the timeout period.
  • step 302 the mobile phone records the RSSI value of the bound wearable device at the timing of the above-mentioned timing time, and saves it as a periodic RSSI value.
  • the RSSI is recorded when the user prompts to process the notification on the wearable device.
  • the mobile phone receives the WeChat message, the user views the notification of the message on the watch; the mobile phone receives the incoming call, and the user chooses to answer the call on the wearable device
  • the mobile phone detects that the connection state of the watch changes (such as the Bluetooth connection is disconnected, the watch is charged), and the mobile phone records the RSSI value when the connection state of the watch changes.
  • These RSSI values are stored in the phone's internal memory or non-volatile readable storage media.
  • the wearable device RSSI statistical timing ends.
  • the mobile phone calculates the unlocked RSSI threshold of the bound wearable device through the recorded RSSI data.
  • the calculation method may be that after the abnormal RSSI value of the sampling of the mobile phone is removed, the average value is averaged as the basic RSSI signal strength threshold.
  • the RSSI at the time when the collected connection state of the watch changes, the RSSI at the time of processing the notification of the notification, etc., can be weighted averaged with the strength of the previous basic RSSI signal (for example, the RSSI signal acquired periodically).
  • the mobile phone calculates the recorded distance by using the recorded RSSI data and Equation 1 in the second embodiment, and calculates the unlock distance threshold of the bound wearable device according to the distance.
  • the calculation method may be that after the abnormal value of the periodic distance of the sampling of the mobile phone is removed, the average value is used as the basic distance threshold.
  • the weighted average value can be obtained from the previous base distance threshold value for the distance when the collected watch connection state changes, the distance when the notification of the notification is processed, and the like.
  • the methods to determine the outliers are:
  • a threshold such as a signal deviating from the average dbm
  • the specific value is set according to the specific situation
  • the signal After finding a signal that deviates from the average, the signal is removed for a certain period of time before and after the culled signal.
  • the weighting value can be set according to the following rules:
  • the RSSI value is higher (the weight can be set to 40% to 50%); when the mobile phone periodically obtains the signal from the wearable device, the RSSI value is lower (if it can be set) Set to about 10%).
  • a letter sent by a wearable device within a certain length of time is collected.
  • the RSSI value of the number obtain a weighted average of these RSSI values, and finally obtain the RSSI value or distance threshold required to unlock the mobile phone.
  • the method of the embodiment of the present invention is more secure than the user-related operation of the mobile terminal (the definition of which has been described in the second embodiment of the present invention) is based on the limitation threshold of the short-range wireless communication connection range.
  • step 401 the user selects to bind/set the payment watch on the mobile phone; in step 402, the mobile phone detects the RSSI of the nearby Bluetooth device and device.
  • the two-dimensional code of the watch information for binding is displayed on the smart watch screen.
  • the smart watch broadcasts device information via Bluetooth so that the mobile phone connects to the smart watch via Bluetooth.
  • the user scans the two-dimensional code displayed on the smart watch that needs to be bound with the mobile phone.
  • the mobile phone parses the scanned two-dimensional code, obtains information of the watch to be bound, and records the RSSI of the scan time of the watch to be bound.
  • the scan code refers to the two-dimensional code of the mobile phone scanning the watch, thereby realizing the selection of the watch connection. Then establish an ACL (Asynchronous Connection-Less) link.
  • step 407 the mobile phone sets the RSSI received at the scanning time to the RSSI at a nearby distance (eg, 10 cm).
  • the RSSI threshold of the smart watch and the mobile phone when approaching is derived based on the current RSSI value and set as the smart unlock threshold.
  • the current distance is calculated according to the current RSSI value and the formula 1 in the second embodiment, and the unlocked distance threshold of the bound wearable device is calculated according to the current distance.
  • the RSSI value of the smart watch received at the time of scanning the code is obtained by the wearable device having the touch screen.
  • it is more targeted for screen-type wearable devices to estimate the RSSI threshold or distance threshold when the smart watch and the mobile phone are close to each other.
  • each constituent component or feature should be considered as an optional factor.
  • Individual constituent elements or features may not be combined with other components or features, if desired.
  • some of the constituent components and/or features may be combined to implement the embodiments of the present invention.
  • the order of operations to be disclosed in the embodiments of the present invention can be changed. Some components or features of any embodiment may also be included in other embodiments or substituted by those of other embodiments as desired.
  • the present invention can be implemented in various formats such as modules, processors, functions, and the like.
  • the software code can be stored in a memory unit such that it can be driven by the processor.
  • the memory unit is internal or external to the processor such that it communicates with the aforementioned processor via various known components.

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Abstract

本发明公开了一种获得进行用户相关操作时的距离阈值的方法，包括：移动终端接收可穿戴设备在第一事件发生时发送的短距离无线通信信号；移动终端获取第一事件发生时可穿戴设备和移动终端之间的距离；移动终端根据距离，计算移动终端进行用户相关操作时可穿戴设备与移动终端之间的距离阈值。

Description

一种获得进行用户相关操作时的距离阈值的方法和装置 技术领域
本发明涉及通信领域，尤其涉及一种获得进行用户相关操作时的距离阈值的方法和装置。
背景技术
可穿戴设备可以和现有的其他终端设备绑定，通过该终端设备获得信息访问，接收的能力。
该终端(例如手机)和可穿戴设备可以通过近场通信方式进行绑定，采用的近场通信方式可以为蓝牙，WiFi(无线保真)等。至于绑定的方法，如果是Android设备可以通过Android手机上的Android Wear App进行，如果是iOS设备，可以通过iPhone上Watch App进行。绑定后可穿戴设备可以接收来自绑定的手机上的消息。
可穿戴设备(例如手环)绑定身份，即可实现免密码操作：
手环与用户的设备账号绑定后，用户无需输入解锁密码，只需用手环靠近手机，即可通过绑定过的手环解锁手机。
在支付宝和微信钱包中可以设置通过可穿戴设备验证用户身份，只要支付时附近有绑定过的可穿戴设备，就可以直接完成支付，无需输入支付密码。
现有的可穿戴设备作为可信设备的方案仅仅依赖于连接状态检测，只要在蓝牙连接范围内(室内可达10-15米。室外50米)，无距离限制，都可以免密解锁，转账和付款，因此存在支付安全及用户隐私安全的问题。
发明内容
本发明实施例提供一种获得进行用户相关操作时的距离阈值的方法和装置，相比起现有技术，能使得移动终端进行所述用户相关操作时的距离阈值小于短距离无线通信连接范围的限制阈值。
第一方面，本发明实施例提供了一种获得进行用户相关操作时的距离阈值的方法，包括：所述移动终端接收所述可穿戴设备在第一事件发生时发送的短距离无线通信信号；所述移动终端获取所述第一事件发生时所述可穿戴设备和所述移动终端之间的距离；所述移动终端根据所述距离，计算所述移动终端进行所述用户相关操作时所述可穿戴设备与所述移动终端之间的距离阈值。
通过上述实施例，移动终端通过接收所述可穿戴设备在第一事件发生时发送的短距离无线通信信号，获取所述第一事件发生时所述可穿戴设备和所述移动终端之间的距离，从而计算所述移动终端进行所述用户相关操作时所述可穿戴设备与所述移动终端之间的距离阈值，使得移动终端进行所述用户相关操作时的距离阈值小于短距离无线通信连接范围的限制阈值(例如蓝牙的限制阈值：室内可达10-15米，室外50米)，因此移动终端进行所述用户相关操作时更加安全。
在第一方面的第一种可能的实施方式中，所述用户相关操作包括：解锁所述移动终端，所述移动终端通过所述可穿戴设备支付,看到所述移动终端收到的通知的内容。
用户的相关操作不止一种，可以扩展除解锁移动终端之外的其他用户功能。
在第一方面的第二种可能的实施方式中，所述获取发送所述短距离无线通信信号时候的所述可穿戴设备和所述移动终端之间的距离，包括：所述距离由获取的所述短距离无线通信信号的接收信号强度指示RSSI计算得到。
这里提供了一种可穿戴设备和移动终端之间的距离的计算方法。
结合第一方面或第一方面的第一种可能的实施方式或第一方面的第二种可能的实施方式的第三种可能的实施方式中，所述第一事件包括：使用所述移动终端。
结合第三种可能的实施方式的第四种可能的实施方式中，使用所述移动终端包括：打电话，操作应用，浏览所述移动终端里的内容。
结合第一方面或第一方面的第一种可能的实施方式或第一方面的第二种可能的实施方式的第五种可能的实施方式中，第一事件包括：所述移动终端和所述可穿戴设备的连接状态发生变化。
结合第一方面或第一方面的第一种可能的实施方式或第一方面的第二种可能的实施方式的第六种可能的实施方式中，第一事件包括：在所述可穿戴设备上处理所述移动终端收到的通知消息。
结合第一方面或第一方面的第一种可能的实施方式或第一方面的第二种可能的实施方式的第七种可能的实施方式中，第一事件包括：所述移动终端扫描所述可穿戴设备上的二维码。
第二方面，本发明实施例提供了一种移动终端包括：接收器，用于接收在第一事件发生时，所述可穿戴设备发送的短距离无线通信信号；获取器，用于获取所述第一事件发生时所述可穿戴设备和所述移动终端之间的距离；计算器，用于根据所述距离，计算所述移动终端进行用户相关操作时所述可穿戴设备与所述移动终端之间的距离阈值。
通过上述实施例，移动终端通过接收所述可穿戴设备在第一事件发生时发送的短距离无线通信信号，获取所述第一事件发生时所述可穿戴设备和所述移动终端之间的距离，从而计算所述移动终端进行所述用户相关操作时所述可穿戴设备与所述移动终端之间的距离阈值，使得移动终端进行所述用户相关操作时的距离阈值小于短距离无线通信连接范围的限制阈值(例如蓝牙的限制阈值：室内可达10-15米，室外50米)，因此移动终端进行所述用户相关操作时更加安全。
在第二方面的第一种可能的实施方式中，所述用户相关操作包括：解锁所述移动终端，所述移动终端通过所述可穿戴设备支付,看到所述移动终端收到的通知的内容。
用户的相关操作不止一种，可以扩展除解锁移动终端之外的其他用户功能。
在第二方面的第二种可能的实施方式中，所述获取发送所述短距离无线通信信号时候的所述可穿戴设备和所述移动终端之间的距离，包括：所述距离由获取的所述短距离无线通信信号的接收信号强度指示RSSI计算得到。
这里提供了一种可穿戴设备和移动终端之间的距离的计算方法。
结合第二方面或第二方面的第一种可能的实施方式或第二方面的第二种可能的实施方式的第三种可能的实施方式中，所述第一事件包括：使用所述移动终端。
结合第三种可能的实施方式的第四种可能的实施方式中，使用所述移动终端包括：打电话，操作应用，浏览所述移动终端里的内容。
结合第二方面或第二方面的第一种可能的实施方式或第二方面的第二种可能的实施方式的第五种可能的实施方式中，第一事件包括：所述移动终端和所述可穿戴设备的连接状态发生变化。
结合第二方面或第二方面的第一种可能的实施方式或第二方面的第二种可能的实施方式的第六种可能的实施方式中，第一事件包括：在所述可穿戴设备上处理所述移动终端收到的通知消息。
结合第二方面或第一方面的第二种可能的实施方式或第二方面的第二种可能的实施方式的第七种可能的实施方式中，第一事件包括：所述移动终端扫描所述可穿戴设备上的二维码。结合第一方面或第二方面的第八种可能的实施方式中，获取发送所述短距离无线通信信号时候的所述可穿戴设备和所述移动终端之间的距离，包括：所述距离由移动终端收到的RSSI 中的时间戳计算得到。
上述时间戳中包括RSSI的发送时间和接收时间。该接收时间减去发送时间，得到的时间差的两倍乘以声音传播的速度，为发送端和接收端之间的距离。
通过上述实施例，移动终端通过接收所述可穿戴设备在第一事件发生时发送的短距离无线通信信号，获取所述第一事件发生时所述可穿戴设备和所述移动终端之间的距离，从而计算所述移动终端进行所述用户相关操作时所述可穿戴设备与所述移动终端之间的距离阈值，使得移动终端进行所述用户相关操作时的距离阈值小于短距离无线通信连接范围的限制阈值(例如蓝牙的限制阈值：室内可达10-15米，室外50米)，因此移动终端进行所述用户相关操作时更加安全。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1是本发明第一实施例中移动终端设备和可穿戴设备的结构示意图；
图2是本发明第二实施例中获得移动终端进行用户相关操作时可穿戴设备与所述移动终端之间的距离阈值的方法的流程图；
图3是本发明第三实施例中获得移动终端进行用户相关操作时可穿戴设备与所述移动终端之间的距离阈值的方法的流程图；
图4是本发明第四实施例中获得移动终端进行用户相关操作时可穿戴设备与所述移动终端之间的距离阈值的方法的流程图。
具体实施方式
为确认本发明的目的、技术方案和优点更加清楚，下面结合附图对本发明实施例作进一步的详细描述。
本发明第一实施例
如图1所示，一个短距离通信的无线局域网中，包括移动终端设备10和可穿戴设备20。该移动终端设备10可以是智能手机，平板，笔记本电脑等。可穿戴设备20可以是手表，手环，戒指，眼镜等。移动终端设备10包括处理器、无线通信器、蓝牙通信器、音频输入/输出(I/O)、存储器、触摸屏幕、惯性传感器。无线通信器在处理器的控制下，发送和接收通信信号，可以访问因特网Internet，应用服务器，获取发给该移动终端设备的数据。可以使用的信号包括WiFi，无线数据网络等。蓝牙通信器在处理器的控制下，与移动终端设备附近的其他蓝牙设备进行蓝牙通信。音频I/O由处理器控制处理和移动终端设备相关的各种声音，语音或音频。存储器用于存储控制各个功能单元的程序，或者是存储处理器运行的中间过程产生的中间变量数据等。触摸屏显示处理器生成的图像数据，接收用户的屏幕触摸操作，向处理器提供用户输入的操作移动终端设备的各种触屏输入。惯性传感器判断设备的姿态变化，决定设备所处的运动状态，可以检测用户手臂运动，比如翻腕，旋转手臂，抬起手臂等。惯性传感器可以包括加速度传感器、陀螺仪、磁场传感器等。
图中的可穿戴设备20可以是智能手表，手环，腕带，或其他形态的可穿戴设备。包括包括处理器、无线通信器、蓝牙通信器、音频输入/输出(I/O)、存储器、触摸屏幕、震动电机、惯性传感器等。震动电机接收处理的控制指令进行震动，用户提示用户事件的发生如：收到通知消息，日历闹钟提醒等。其他功能单元和移动终端设备的类似。
移动终端设备和可穿戴设备通过2者的蓝牙通信器绑定后，可以在蓝牙通信距离内使用蓝牙无线通信交换数据。包括在两个设备之间传输图片，文本，字符，图像，数据流等各种格式的数据。
本发明第二实施例
支持佩戴检测和佩戴状态同步的可穿戴设备
对于一款可穿戴设备(如手表/手环/眼镜等)，在如图2所示的步骤201用户在初次将其添加为可信设备，在步骤202手机为可穿戴设备设定一个RSSI(接收的信号强度指示，Received Signal Strength Indicator)初始阈值，如-80dbm(分贝毫瓦，decibel relative to one milliwatt)(如手机检测到该信号强度的可穿戴设备时，两者相距的距离约为5m)，以便保证用户能够在最开始方便的使用智能解锁。
RSSI和距离的关系可以用如下的公式表达：
RSSI＝-10n log10(d)+A          (公式1)
其中A是在1米处收到的蓝牙信号强度，单位是dBm。d是距离单位为米，n是传输常数，通常取值在2.7到4.3。
在步骤203，可穿戴设备通过佩戴检测发现用户已经佩戴了可穿戴设备。
其中，检测用户已经佩戴了可穿戴设备，可通过可穿戴设备上的PPG(photoplethysmography，光电容积脉搏波)传感器。当用户佩戴着可穿戴设备如手表时，如果手表能获取佩戴者的PPG信号则表示用户佩戴着可穿戴设备。
检测用户已经佩戴了可穿戴设备，可通过开关，如有的可穿戴设备需要按键后摘下，可以通过判断是否有用户按键来判断用户是否摘下了可穿戴设备。
检测用户已经佩戴了可穿戴设备，还可通过可穿戴设备上的加速度传感器判断是否有用户活动信号，如走路，运动等，则表示用户正带着可穿戴设备。
可穿戴设备检测到用户佩戴可穿戴设备后，在步骤204由可穿戴设备向绑定的手机发送可穿戴设备已经佩戴的状态。手机可以定期询问可穿戴设备的佩戴状态，或者可穿戴设备定期向手机报告佩戴状态，双方成功通信则认为可穿戴设备佩戴状态更新成功，任何一方没有通信成功则认为可 穿戴设备脱落。也可以由可穿戴设备向手机发送可穿戴设备脱落通知。
在用户保持佩戴可穿戴设备的前提下(手机没有收到手表脱落通知，或者在手机定时时间内收到过手表佩戴的通信)，用户在操作手机时，在步骤205的第一个子步骤中，用户使用手机(打电话，操作应用，浏览手机内容等)时的手表的RSSI值。或者在步骤205的第二个子步骤中，手机检测手表连接状态发生变化，手机记录手表连接状态发生变化时候的RSSI值。
在步骤206中，根据采样的RSSI值计算出用户在戴着手表时，使用手机打电话的情况下，所需的解锁手机RSSI阈值(需要手环将佩戴状态同步给手机)。例如可以通过设置解锁手机的RSSI阈值为述步骤205中获取的最大值，平均值，加权平均值，出现频率最高的值，或者组合前面的方法等，或其他方法不作限定。
在步骤207中，可选的，还可以对这个RSSI阈值进行扩展，适当放宽，让用户能在大部分场景下使用智能解锁。例如，这个RSSI阈值按照如上公式1计算得到对应的距离阈值为30厘米，可以扩展到60厘米或者1米。
或者，
在步骤206中，根据采样的RSSI值和公式1计算得到采样的距离，并计算出用户在戴着手表时，使用手机打电话的情况下，所需的解锁手机的距离阈值。例如可以通过设置解锁手机的距离该步骤中计算获取的采样的距离中的最大值，平均值，加权平均值，出现频率最高的值，或者组合前面的方法等，或其他方法不作限定。
在步骤207中，将在步骤206中得到的距离阈值进行扩展，适当放宽，让用户能在大部分场景下使用智能解锁。例如，这个距离阈值为30厘米，可以扩展到60厘米或者1米。
上述本发明实施例二通过计算手机和可穿戴设备连接状态时，手机打电话的距离阈值或RSSI阈值，实现了手机和可穿戴设备连接状态时，用户相关操作的距离阈值的设定，因此使得手机和可穿戴设备连接状态时的用 户相关操作更加安全。这里的用户相关操作，包括解锁所述移动终端，所述移动终端通过所述可穿戴设备支付,看到所述移动终端收到的通知的内容，拨打电话和访问用户数据等。
本发明第三实施例
无佩戴检测或佩戴状态同步功能
本发明实施例三收集用户24h或更长时间的RSSI分布情况，来计算一个合理的RSSI阈值。
结合睡眠状态；若在夜间通过手机或手表检测到用户处于睡眠状态，或者手机收到用户处于睡眠状态的消息，则手机禁用智能解锁。
其中判断用户是否处于睡眠状态，可通过ppg，ecg(electrocardiogram心电图)或eeg(Electroencephalogram脑电图)等传感器采集佩戴者的生理特征信号(如脉搏，呼吸，心电，脑电)，判断若信号的特征符合入睡时候的信号特征则表示佩戴者已经进入睡眠状态。
比如通过光PPG传感器模块或摄像头模块获得了ppg信号，通过ppg信号可以判读出心跳和呼吸节奏(HRV，Heart Rate Variability心率变异性)，通过HRV判断心跳节奏变慢，符合睡眠状态下的心率，则用户进入入睡状态。
或者，通过加速度传感器判断用户没有活动，则认为处于睡眠状态。
如图3所示，
在步骤301，手机开始计时。手机在计时时间内统计绑定的可穿戴设备的RSSI信号强度。
在步骤302，手机以上述计时时间内的定时记录绑定的可穿戴设备的RSSI值，并保存为定期RSSI值。
在步骤303的第一个子步骤中，手机上收到通知后，记录用户在可穿戴设备上处理该通知的提示的时候的RSSI。(手机收到微信消息，用户在手表上查看该消息的通知；手机接收到来电，用户选择在可穿戴设备上接听)
或者在步骤303的第二个子步骤中，手机检测手表连接状态发生变化(如蓝牙连接断开，手表充电)，手机记录手表连接状态发生变化时候的RSSI值。这些RSSI值会存储在手机的内存或非易失性可读存储介质中。在步骤304，可穿戴设备RSSI统计计时结束。
在步骤305，手机通过记录的RSSI数据，计算绑定的可穿戴设备的解锁RSSI阈值。计算的方法可以是对手机采样的定期RSSI值剔除异常值后，求平均值，作为基础RSSI信号强度阈值。对于采集到的手表连接状态变化时候的RSSI，处理通知的提示的时候的RSSI等，可以与前面的基础RSSI信号(例如定期获取的RSSI信号)强度求加权平均值。
或者，
在步骤305，手机通过记录的RSSI数据和实施例二中的公式1，计算记录的距离，并根据距离计算绑定的可穿戴设备的解锁距离阈值。计算的方法可以是对手机采样的定期距离剔除异常值后，求平均值，作为基础距离阈值。对于采集到的手表连接状态变化时候的距离，处理通知的提示的时候的距离等，可以与前面的基础距离阈值求加权平均值。其中，确定异常值的方法有：
设定一个阈值，比如偏离平均值若干dbm的信号，具体的数值根据具体情况设定；或者，
剔除偏离平均值最远的20％的信号；或者，
发现偏离平均值的一个信号后，剔除被剔除的信号前后若干时间内的信号。
其中，加权值可按照如下规则设定：
当手机正在使用时的RSSI值，加权值较高(权值可设定为40％至50％)；当手机定期从可穿戴设备获取信号的时候的RSSI值，加权值较低(如可设定为10％左右)。
本发明实施例三中，通过收集一定时间长度内的可穿戴设备发送的信 号的RSSI值，获取这些RSSI值的加权平均值，最终获取解锁手机所需的RSSI值或距离阈值。比起现有技术中只根据短距离无线通信连接范围的限制阈值来进行移动终端的用户相关操作(其定义已在本发明实施例二中说明)，本发明实施例的方法会更安全。
本发明第四实施例
带有触摸屏幕的可穿戴设备
如图4所示，
在步骤401，用户在手机上选择绑定/设置支付手表；在步骤402.手机检测附近的蓝牙设备和设备的RSSI。
在步骤403，智能手表屏幕上显示用于绑定的该手表信息的二维码。
在步骤404，智能手表通过蓝牙广播设备信息，以便手机通过蓝牙连接智能手表。
在步骤405，用户用手机扫描需要绑定的智能手表上显示的二维码。
在步骤406，手机解析扫描到的二维码，获取需要绑定的手表的信息，同时记录需要绑定的手表的扫码时刻的RSSI。其中，扫码是指手机在扫描手表上的二维码，从而实现选择该手表连接。之后建立ACL(Asynchronous Connection-Less，异步连接少)链接。
在步骤407，手机将扫码时刻接收到的RSSI设置为临近距离(如10cm)处的RSSI。
在步骤408，根据当前RSSI值推算出智能手表和手机靠近时候(如2米)的RSSI阈值，并设置为智能解锁阈值。
或者，
在步骤408，根据当前RSSI值和实施例二中的公式1，计算当前的距离，并根据当前的距离计算绑定的可穿戴设备的解锁距离阈值。本发明实施例通过有触摸屏幕的可穿戴设备，将扫码时刻收到的智能手表的RSSI值 作为参考，推算智能手表和手机靠近时候的RSSI阈值或距离阈值，对于屏类可穿戴设备，更有针对性。
通过根据预定格式将本发明的构成组件和特征合并，来提出下述实施例。在没有附加标记的情况下，应该将各个构成组件或者特征考虑为可选因素。如果需要，各个构成元件或者特征可以不与其他组件或者特征合并。同时，可以将一些构成组件和/或特征合并，以实施本发明的实施例。可以改变在本发明的实施例中将要公开的操作顺序。也可以将任何实施例的一些组件或者特征包括在其他实施例中，或者根据需要由其他实施例中的那些所替代。
应该注意的是，提出在本发明中公开的特定术语，以便本发明描述简便以及更好理解，并且可以将这些特定术语的使用改变为在本发明的技术范围或者精神内的另一格式。
在一些实施例中，将已众所周知的结构或者设备省略，以便避免使得本发明的构思模糊，并且以框图形式示出这些结构和设备的重要功能。在整个附图中使用的相同附图标记表示相同或相似部件。
如果通过固件或者软件来实施本发明的操作或者功能，能够以例如模块、处理器、功能等的各种格式来实施本发明。可以将软件代码存储在存储器单元中，使得通过处理器能够对其进行驱动。存储器单元位于该处理器的内部或者外部，使得其经由各种已知的部件与前述处理器进行通信。
已经给出本发明的示例性实施例的详细描述，以使得本领域的技术人员实施和实践本发明。虽然参考示例性实施例已经描述本发明，但是本领域的技术人员应该明白，在不脱离在随附权利要求中所描述的本发明的精神或者范围的情形下，可以对本发明进行各种修改和改变。例如，本领域的技术人员可以将上述实施例中描述的每种结构彼此组合使用。因此，本 发明应该不限于此处描述的特定实施例，但是应该符合与此处所公开的原理和新颖特征一致的最广泛的范围。
本领域的技术人员应该明白，在没有脱离本发明的精神和基本特征的情形下，以此处所阐述之外的其他特定方式可以实现本发明。因此，在作为示例的且不是限制的所有方面中解释上述示例性实施例。本发明的范围应该由随附的权利要求和其法律等效内容而非上述描述来确定，并且在随附的权利要求的含义和等效范围内的所有改变意图被包含在内。而且，显而易见的是，引用特定权利要求中的一些权利要求可以与以引用除了这些特定权利要求以外的其他权利要求的另外权利要求相结合，以构成实施例，或者通过在本申请提交之后的修改方式，添加新的权利要求。

Claims (16)

  1. 一种获得进行用户相关操作时的距离阈值的方法，其特征在于，包括：所述移动终端接收所述可穿戴设备在第一事件发生时发送的短距离无线通信信号；
    所述移动终端获取所述第一事件发生时所述可穿戴设备和所述移动终端之间的距离；
    所述移动终端根据所述距离，计算所述移动终端进行所述用户相关操作时所述可穿戴设备与所述移动终端之间的距离阈值。
  2. 如权利要求1所述方法，所述用户相关操作包括：解锁所述移动终端，所述移动终端通过所述可穿戴设备支付,看到所述移动终端收到的通知的内容。
  3. 如权利要求1所述方法，所述获取发送所述短距离无线通信信号时候的所述可穿戴设备和所述移动终端之间的距离，包括：
    所述距离由获取的所述短距离无线通信信号的接收信号强度指示RSSI计算得到。
  4. 如权利要求1至3任一项所述方法，所述第一事件包括：使用所述移动终端。
  5. 如权利要求4所述方法，所述使用所述移动终端包括：打电话，操作应用，浏览所述移动终端里的内容。
  6. 如权利要求1至3任一项所述方法，所述第一事件包括：所述移动终端和所述可穿戴设备的连接状态发生变化。
  7. 如权利要求1至3任一项所述方法，所述第一事件包括：在所述可穿戴设备上处理所述移动终端收到的通知消息。
  8. 如权利要求1至3任一项所述方法，所述第一事件包括：所述移动终端扫描所述可穿戴设备上的二维码。
  9. 一种移动终端，其特征在于，包括：
    接收器，用于接收在第一事件发生时，所述可穿戴设备发送的短距离无线通信信号；
    获取器，用于获取所述第一事件发生时所述可穿戴设备和所述移动终端之间的距离；
    计算器，用于根据所述距离，计算所述移动终端进行用户相关操作时所述可穿戴设备与所述移动终端之间的距离阈值。
  10. 如权利要求9所述移动终端，所述用户相关操作包括：解锁所述移动终端，所述移动终端通过所述可穿戴设备支付,看到手机收到的通知的内容，拨打电话，访问用户数据。
  11. 如权利要求9所述的移动终端，所述获取器具体用于：由获取的所述短距离通信信号的接收信号强度指示RSSI计算得到所述距离。
  12. 如权利要求9至11任一项所述移动终端，所述第一事件包括：使用手机。
  13. 如权利要求12所述移动终端，所述使用手机包括：打电话，操作应用，浏览手机内容。
  14. 如权利要求9至11任一项所述移动终端，所述第一事件包括：移动终端和可穿戴设备的连接状态发生变化。
  15. 如权利要求9至11任一项所述移动终端，所述第一事件包括：在可穿戴设备上处理所述移动终端收到的通知消息。
  16. 如权利要求9至11任一项所述移动终端，所述第一事件包括：扫描可穿戴设备上的二维码。
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