CN108369627B - Method and device for obtaining distance threshold value during user related operation - Google Patents
Method and device for obtaining distance threshold value during user related operation Download PDFInfo
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- CN108369627B CN108369627B CN201680072880.0A CN201680072880A CN108369627B CN 108369627 B CN108369627 B CN 108369627B CN 201680072880 A CN201680072880 A CN 201680072880A CN 108369627 B CN108369627 B CN 108369627B
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Abstract
The invention discloses a method for obtaining a distance threshold value when carrying out user-related operation, which comprises the following steps: the mobile terminal receives a short-range wireless communication signal sent by the wearable device when a first event occurs; the method comprises the steps that the mobile terminal obtains the distance between the wearable device and the mobile terminal when a first event occurs; and the mobile terminal calculates a distance threshold value between the wearable equipment and the mobile terminal when the mobile terminal performs user-related operation according to the distance.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for obtaining a distance threshold when performing a user-related operation.
Background
The wearable device can be bound with other existing terminal devices, and the terminal devices can obtain information access and receiving capabilities.
The terminal (for example, a mobile phone) and the wearable device can be bound in a near field communication mode, and the near field communication mode can be Bluetooth, WiFi (wireless fidelity) and the like. As for the binding method, if the Android device is an Android device, the Android Wear App on the Android mobile phone can be used, and if the Android device is an iOS device, the Android device can be used, the Watch App on the iPhone can be used. The bound wearable device can receive a message from the bound handset.
Wearable equipment (for example bracelet) binds the identity, can realize exempting from the password operation:
after the bracelet is bound with the equipment account of the user, the user does not need to input an unlocking password, only needs to approach the mobile phone with the bracelet, and can unlock the mobile phone through the bound bracelet.
User identity can be verified through wearable equipment in payment treasured and believe wallet a little, as long as near have the wearable equipment who binds during payment, just can directly accomplish the payment, need not to input payment password.
The existing scheme of the wearable device as the trusted device only depends on connection state detection, and as long as the wearable device is within a Bluetooth connection range (10-15 meters indoors and 50 meters outdoors), the wearable device can be unlocked, transferred and paid without secret without distance limitation, so that the problems of payment safety and user privacy safety exist.
Disclosure of Invention
Compared with the prior art, the method and the device for obtaining the distance threshold value during the user-related operation of the mobile terminal can enable the distance threshold value during the user-related operation of the mobile terminal to be smaller than the limit threshold value of the short-distance wireless communication connection range.
In a first aspect, an embodiment of the present invention provides a method for obtaining a distance threshold when performing a user-related operation, where the method includes: the mobile terminal receives a short-range wireless communication signal sent by the wearable device when a first event occurs; the mobile terminal acquires the distance between the wearable device and the mobile terminal when the first event occurs; and the mobile terminal calculates a distance threshold between the wearable equipment and the mobile terminal when the mobile terminal performs the user-related operation according to the distance.
Through the embodiment, the mobile terminal obtains the distance between the wearable device and the mobile terminal when the first event occurs by receiving the short-distance wireless communication signal sent by the wearable device when the first event occurs, so that the distance threshold between the wearable device and the mobile terminal when the mobile terminal performs the user-related operation is calculated, and the distance threshold when the mobile terminal performs the user-related operation is smaller than the limit threshold of the short-distance wireless communication connection range (for example, the limit threshold of Bluetooth is 10-15 meters indoors and 50 meters outdoors), so that the mobile terminal is safer when performing the user-related operation.
In a first possible implementation manner of the first aspect, the user-related operation includes: and unlocking the mobile terminal, and the mobile terminal pays through the wearable device to see the content of the notification received by the mobile terminal.
The related operation of the user is more than one, and other user functions except unlocking the mobile terminal can be expanded.
In a second possible implementation manner of the first aspect, the obtaining the distance between the wearable device and the mobile terminal when the short-range wireless communication signal is transmitted includes: the distance is calculated by the received signal strength indicator RSSI of the acquired short-distance wireless communication signal.
Provided herein is a method of calculating a distance between a wearable device and a mobile terminal.
With reference to the first aspect or the first possible implementation manner of the first aspect or the third possible implementation manner of the second aspect, the first event includes: using the mobile terminal.
In a fourth possible implementation manner that is combined with the third possible implementation manner, the using the mobile terminal includes: and calling, operating an application and browsing the content in the mobile terminal.
With reference to the first aspect or the first possible implementation manner of the first aspect or the fifth possible implementation manner of the second possible implementation manner of the first aspect, the first event includes: the connection state of the mobile terminal and the wearable device changes.
With reference to the first aspect or the first possible implementation manner of the first aspect or the sixth possible implementation manner of the second possible implementation manner of the first aspect, the first event includes: and processing the notification message received by the mobile terminal on the wearable device.
With reference to the first aspect or the first possible implementation manner of the first aspect or the seventh possible implementation manner of the second aspect, the first event includes: and the mobile terminal scans the two-dimensional code on the wearable device.
In a second aspect, an embodiment of the present invention provides a mobile terminal, including: a receiver for receiving a short-range wireless communication signal transmitted by the wearable device upon occurrence of a first event; an acquirer, configured to acquire a distance between the wearable device and the mobile terminal when the first event occurs; and the calculator is used for calculating a distance threshold value between the wearable equipment and the mobile terminal when the mobile terminal performs user-related operation according to the distance.
Through the embodiment, the mobile terminal obtains the distance between the wearable device and the mobile terminal when the first event occurs by receiving the short-distance wireless communication signal sent by the wearable device when the first event occurs, so that the distance threshold between the wearable device and the mobile terminal when the mobile terminal performs the user-related operation is calculated, and the distance threshold when the mobile terminal performs the user-related operation is smaller than the limit threshold of the short-distance wireless communication connection range (for example, the limit threshold of Bluetooth is 10-15 meters indoors and 50 meters outdoors), so that the mobile terminal is safer when performing the user-related operation.
In a first possible implementation manner of the second aspect, the user-related operation includes: and unlocking the mobile terminal, and the mobile terminal pays through the wearable device to see the content of the notification received by the mobile terminal.
The related operation of the user is more than one, and other user functions except unlocking the mobile terminal can be expanded.
In a second possible implementation manner of the second aspect, the obtaining the distance between the wearable device and the mobile terminal when the short-range wireless communication signal is transmitted includes: the distance is calculated by the received signal strength indicator RSSI of the acquired short-distance wireless communication signal.
Provided herein is a method of calculating a distance between a wearable device and a mobile terminal.
In a third possible implementation manner that is combined with the second aspect or the first possible implementation manner of the second aspect or the second possible implementation manner of the second aspect, the first event includes: using the mobile terminal.
In a fourth possible implementation manner that is combined with the third possible implementation manner, the using the mobile terminal includes: and calling, operating an application and browsing the content in the mobile terminal.
In a fifth possible implementation manner that is combined with the second aspect or the first possible implementation manner of the second aspect or the second possible implementation manner of the second aspect, the first event includes: the connection state of the mobile terminal and the wearable device changes.
In a sixth possible implementation manner that is combined with the second aspect or the first possible implementation manner of the second aspect or the second possible implementation manner of the second aspect, the first event includes: and processing the notification message received by the mobile terminal on the wearable device.
In a seventh possible implementation manner that is combined with the second aspect or the second possible implementation manner of the first aspect or the second possible implementation manner of the second aspect, the first event includes: and the mobile terminal scans the two-dimensional code on the wearable device. In an eighth possible implementation manner of the first aspect or the second aspect, the obtaining a distance between the wearable device and the mobile terminal when the short-range wireless communication signal is transmitted includes: the distance is calculated from a timestamp in the RSSI received by the mobile terminal.
The timestamp includes the transmission time and the reception time of the RSSI. The receiving time minus the sending time is multiplied by the speed of sound propagation by twice the time difference, which is the distance between the sending end and the receiving end.
Through the embodiment, the mobile terminal obtains the distance between the wearable device and the mobile terminal when the first event occurs by receiving the short-distance wireless communication signal sent by the wearable device when the first event occurs, so that the distance threshold between the wearable device and the mobile terminal when the mobile terminal performs the user-related operation is calculated, and the distance threshold when the mobile terminal performs the user-related operation is smaller than the limit threshold of the short-distance wireless communication connection range (for example, the limit threshold of Bluetooth is 10-15 meters indoors and 50 meters outdoors), so that the mobile terminal is safer when performing the user-related operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
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 a mobile terminal when the mobile terminal performs a user-related operation according to a second embodiment of the present invention;
fig. 3 is a flowchart of a method for obtaining a distance threshold between a wearable device and a mobile terminal when the mobile terminal performs a user-related operation according to a third embodiment of the present invention;
fig. 4 is a flowchart of a method for obtaining a distance threshold between a wearable device and a mobile terminal when the mobile terminal performs a user-related operation according to a fourth embodiment of the present invention.
Detailed Description
To confirm the purpose, technical solutions and advantages of the present invention are more clear, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.
First embodiment of the invention
As shown in fig. 1, a wireless local area network for short-range communication includes a mobile terminal device 10 and a wearable device 20. The mobile terminal device 10 may be a smart phone, a tablet, a notebook computer, or the like. The wearable device 20 may be a watch, bracelet, ring, glasses, etc. 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, an inertial sensor. The wireless communicator sends and receives communication signals under the control of the processor, can access the Internet, and the application server acquires data sent to the mobile terminal equipment. Signals that may be used include WiFi, wireless data networks, and the like. The Bluetooth communicator is controlled by the processor to perform Bluetooth communication with other Bluetooth devices near the mobile terminal device. Audio I/O is controlled by the processor to process various sounds, voice or audio associated with the mobile terminal device. The memory is used for storing programs for controlling various functional units, or storing intermediate variable data generated in an intermediate process operated by the processor, and the like. The touch screen displays image data generated by the processor, receives a screen touch operation of a user, and provides various touch screen inputs for operating the mobile terminal device, which are input by the user, to the processor. The inertial sensor judges the posture change of the equipment, determines the motion state of the equipment, and can detect the arm motion of the user, such as wrist turning, arm rotation, arm lifting and the like. The inertial sensors may include acceleration sensors, gyroscopes, magnetic field sensors, and the like.
The wearable device 20 in the figure may be a smart watch, bracelet, wristband, or other form of wearable device. Including a processor, wireless communicator, bluetooth communicator, audio input/output (I/O), memory, touch screen, vibrating motor, inertial sensor, etc. The vibration motor receives the processed control command to vibrate, and a user prompts the occurrence of events of the user as follows: receiving a notification message, a calendar alarm clock, and the like. Other functional units are similar to those of the mobile terminal device.
After the mobile terminal device and the wearable device are bound through the Bluetooth communicator of the 2, data can be exchanged by using Bluetooth wireless communication within a Bluetooth communication distance. Including the transfer of data in various formats, such as pictures, text, characters, images, data streams, etc., between two devices.
Second embodiment of the invention
Wearable device supporting wearing detection and wearing state synchronization
For a wearable device (e.g., watch/bracelet/glasses, etc.), the user adds it as a trusted device for the first time in step 201 shown in fig. 2, and the mobile phone sets an RSSI (Received Signal Strength Indicator) initial threshold, e.g., -80dbm (decibel milliwatt) for the wearable device in step 202 (e.g., the distance between the wearable device and the mobile phone is about 5m when the wearable device detects the Signal Strength), so as to ensure that the user can use smart unlocking at the very beginning conveniently.
The relationship between RSSI and distance can be expressed by the following equation:
RSSI-10 n log10(d) + a (equation 1)
Where A is the received Bluetooth signal strength at 1 meter in dBm. d is the distance in meters and n is the transmission constant, typically taking a value of 2.7 to 4.3.
In step 203, the wearable device finds, through the wearing detection, that the user has worn the wearable device.
Wherein it is detected that the user has worn the wearable device, and the detection may be performed by a PPG (photoplethysmography) sensor on the wearable device. When a user wears a wearable device such as a watch, it is indicated that the user wears the wearable device if the watch can acquire a PPG signal of the wearer.
The wearable device is worn by a user, and the wearable device can be picked off by a switch after being pressed if the wearable device needs to be pressed, and whether the wearable device is picked off by the user can be judged by judging whether the user presses a key.
The wearable device is detected to be worn by the user, and whether a user activity signal exists can be judged through an acceleration sensor on the wearable device, such as walking, moving and the like, and the fact that the user is wearing the wearable device is indicated.
After the wearable device detects that the user wears the wearable device, a state that the wearable device has been worn is sent by the wearable device to the bound cell phone in step 204. The mobile phone can inquire the wearing state of the wearable device regularly, or the wearable device reports the wearing state to the mobile phone regularly, if the two parties successfully communicate, the wearing state of the wearable device is considered to be updated successfully, and if any party does not successfully communicate, the wearable device is considered to fall off. A wearable device detachment notification may also be sent by the wearable device to the cell phone.
On the premise that the user keeps wearing the wearable device (the mobile phone does not receive the watch falling notification, or receives the communication worn by the watch within the timing time of the mobile phone), when the user operates the mobile phone, in the first sub-step of step 205, the user uses the RSSI value of the watch when the user uses the mobile phone (makes a call, operates an application, browses the contents of the mobile phone, etc.). Or in the second substep of step 205, the handset detects that the watch connection status has changed, and the handset records the RSSI value when the watch connection status has changed.
In step 206, the RSSI threshold value of the mobile phone to be unlocked when the user places a call with the mobile phone while wearing the watch is calculated from the sampled RSSI values (the wearing state of the bracelet needs to be synchronized to the mobile phone). For example, the RSSI threshold for unlocking the handset may be set to the maximum value, the average value, the weighted average value, the value with the highest frequency of occurrence obtained in step 205, or a combination of the foregoing methods, or other methods.
In step 207, optionally, the RSSI threshold may be expanded and relaxed appropriately, so that the user can use smart unlocking in most scenarios. For example, the RSSI threshold is calculated according to equation 1 above to obtain a corresponding distance threshold of 30 cm, which may be extended to 60 cm or 1 m.
Alternatively, the first and second electrodes may be,
in step 206, the sampled distance is calculated according to the sampled RSSI value and formula 1, and a distance threshold value required to unlock the mobile phone when the user uses the mobile phone to make a call while wearing the watch is calculated. For example, the maximum value, the average value, the weighted average value, the value with the highest frequency of occurrence, or the combination of the foregoing methods, or other methods may be used to calculate the acquired sampled distance in this step by setting the distance to unlock the mobile phone.
In 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, for example, 30 cm, and may extend to 60 cm or 1 meter.
In the embodiment of the invention, the distance threshold or the RSSI threshold of the mobile phone for making a call is calculated when the mobile phone is connected with the wearable device, so that the distance threshold of the user related operation is set when the mobile phone is connected with the wearable device, and the user related operation is safer when the mobile phone is connected with the wearable device. The user-related operations comprise unlocking the mobile terminal, paying by the mobile terminal through the wearable device, seeing the content of the notification received by the mobile terminal, making a call, accessing user data and the like.
Third embodiment of the invention
Non-wearing detection or wearing state synchronization function
In the third embodiment of the invention, the RSSI distribution situation of the user for 24h or more is collected to calculate a reasonable RSSI threshold value.
Integrating sleep states; if the mobile phone or the watch detects that the user is in the sleep state at night or the mobile phone receives a message that the user is in the sleep state, the mobile phone disables intelligent unlocking.
Whether the user is in a sleep state or not is judged, physiological characteristic signals (such as pulse, respiration, electrocardio and Electroencephalogram) of the wearer can be collected through sensors such as ppg (electrocardiogram), ecg (electrocardiogram) or eeg (Electroencephalogram), and if the characteristics of the signals meet the characteristics of the signals when the user falls asleep, the user is judged to be in the sleep state.
For example, a PPG signal is obtained through the PPG sensor module or the camera module, a Heart beat and a breathing rhythm (HRV, Heart Rate Variability) can be read through the PPG signal, the Heart beat is judged to be slow through the HRV, the Heart Rate meets the sleep state, and then the user enters the sleep state.
Or judging that the user is not active through the acceleration sensor, and then considering the user to be in a sleep state.
As shown in figure 3 of the drawings,
in step 301, the handset starts timing. And the mobile phone counts the RSSI signal strength of the bound wearable equipment within the timing time.
In step 302, the mobile phone records the RSSI value of the bound wearable device at a timing within the above-mentioned timing time, and stores the RSSI value as a regular RSSI value.
In a first sub-step of step 303, after receiving the notification on the handset, the RSSI of the user at the time of processing the reminder of the notification on the wearable device is recorded. (the mobile phone receives the WeChat message, the user checks the message on the watch; the mobile phone receives the incoming call, the user chooses to answer on the wearable device)
Or in the second substep of step 303, the mobile phone detects that the watch connection status changes (such as bluetooth disconnection, watch charging), and the mobile phone records the RSSI value when the watch connection status changes. These RSSI values are stored in the memory or non-volatile readable storage medium of the handset. At step 304, the wearable device RSSI statistics timing ends.
In step 305, the handset calculates an unlock RSSI threshold for the bound wearable device from the logged RSSI data. The calculation method can be that after abnormal values of regular RSSI values sampled by the mobile phone are removed, the average value is calculated and used as a basic RSSI signal strength threshold value. The RSSI at the time of change of the acquired watch connection state, the RSSI at the time of processing notification, and the like may be weighted-averaged with the strength of the previous basic RSSI signal (for example, the regularly acquired RSSI signal).
Alternatively, the first and second electrodes may be,
in step 305, the mobile phone calculates the recorded distance by using the recorded RSSI data and formula 1 in the second embodiment, and calculates the unlocking distance threshold of the bound wearable device according to the distance. The calculation method can be that after abnormal values are removed from the regular distance of the mobile phone sampling, the average value is calculated and used as a basic distance threshold value. The distance when the acquired watch connection state changes, the distance when the notification is processed, and the like can be weighted-averaged with the previous basic distance threshold. The method for determining the abnormal value comprises the following steps:
setting a threshold, such as a number of dbm signals from the average, with specific values set according to specific conditions; alternatively, the first and second electrodes may be,
rejecting signals that are 20% farthest from the mean; alternatively, the first and second electrodes may be,
and after a signal deviating from the average value is found, rejecting signals in a plurality of time periods before and after the rejected signal.
The weighting value can be set according to the following rules:
the weighting value is higher (the weight can be set to 40% to 50%) for the RSSI value when the mobile phone is in use;
the weighting value is low (e.g., can be set to about 10%) for the RSSI value when the mobile phone periodically acquires signals from the wearable device.
In the third embodiment of the present invention, the RSSI values of the signals sent by the wearable device within a certain time period are collected to obtain a weighted average of the RSSI values, and finally, the RSSI value or the distance threshold value required for unlocking the mobile phone is obtained. Compared with the prior art in which the user-related operation of the mobile terminal is performed only according to the limit threshold of the short-range wireless communication connection range (the definition of which is described in the second embodiment of the present invention), the method of the embodiment of the present invention is safer.
Fourth embodiment of the invention
Wearable device with touch screen
As shown in figure 4 of the drawings,
in step 401, a user selects to bind/set a payment watch on a mobile phone; at step 402, the handset detects the RSSI of nearby bluetooth devices and devices.
In step 403, the two-dimensional code of the watch information for binding is displayed on the smart watch screen.
In step 404, the smart watch broadcasts the device information via bluetooth so that the mobile phone can connect to the smart watch via bluetooth.
In step 405, the user scans the two-dimensional code displayed on the smart watch to be bound with the mobile phone. In step 406, the mobile phone analyzes the scanned two-dimensional code, acquires information of the watch to be bound, and records RSSI of the watch to be bound at the code scanning time. The code scanning means that the mobile phone scans the two-dimensional code on the watch, so that the watch connection is selected. And then establishing ACL (Asynchronous Connection-Less) link.
In step 407, the handset sets the RSSI received at the time of the code scan to the RSSI at the close range (e.g., 10 cm).
In step 408, the RSSI threshold value when the smart watch and the mobile phone are close (e.g., 2 meters) is calculated according to the current RSSI value, and is set as the smart unlock threshold value.
Alternatively, the first and second electrodes may be,
in step 408, the current distance is calculated according to the current RSSI value and formula 1 in the second embodiment, and the unlocking distance threshold of the bound wearable device is calculated according to the current distance. According to the embodiment of the invention, the RSSI value of the smart watch received at the code scanning moment is used as a reference through the wearable device with the touch screen, and the RSSI threshold value or the distance threshold value when the smart watch and the mobile phone are close to each other is calculated, so that the wearable device is more targeted for screen type wearable devices.
The following embodiments are proposed by incorporating constituent components and features of the present invention according to a predetermined format. Individual constituent components or features should be considered optional factors without additional labeling. Each constituent element or feature may not be combined with other components or features if necessary. Meanwhile, some 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 may be changed. Some components or features of any embodiment may also be included in, or substituted for, those of other embodiments as desired.
It should be noted that specific terms disclosed in the present invention are proposed for the convenience of description and better understanding of the present invention, and the use of these specific terms may be changed to another format within the technical scope or spirit of the present invention.
In some embodiments, well-known structures or devices are omitted in order to avoid obscuring the concepts of the present invention, and important functions of these structures and devices are shown in block diagram form. The same reference numbers will be used throughout the drawings to refer to the same or like parts.
If the operations or functions of the present invention are implemented by firmware or software, the present invention can be implemented in various formats such as modules, processors, functions, and the like. The software codes may be stored in memory units so as to be drivable by processors. The memory unit is located inside or outside the processor so that it communicates with the aforementioned processor via various known components.
Detailed descriptions of exemplary embodiments of the invention have been given to enable those skilled in the art to practice and practice the invention. Although the present invention has been described with reference to exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the present invention without departing from the spirit or scope of the invention described in the appended claims. For example, a person skilled in the art may use each of the structures described in the above embodiments in combination with each other. Thus, the present invention should not be limited to the particular embodiments described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.
It will be appreciated by those skilled in the art that the present invention can be embodied in other specific forms than those herein set forth without departing from the spirit or essential characteristics of the invention. The exemplary embodiments described above are therefore to be construed in all aspects as illustrative and not restrictive. The scope of the invention should be determined by the appended claims and their legal equivalents, rather than by the description above, and all changes that come within the meaning and range of equivalency of the appended claims are intended to be embraced therein. Furthermore, it is apparent that some of the claims referring to specific claims may be combined with another claims referring to other claims other than these specific claims to constitute the embodiment or add new claims by way of modification after filing of this application.
Claims (6)
1. A method applied to a mobile terminal is characterized by comprising the following steps:
the mobile terminal receives the wearing state of the wearable equipment;
when the wearable device is in a wearing state and is kept worn, the mobile terminal receives a short-range wireless communication signal sent by the wearable device when a first event occurs;
the mobile terminal acquires a distance between the wearable device and the mobile terminal when the first event occurs, wherein the first event comprises other user-related events related to the wearable device except for unlocking the mobile terminal, and the distance is calculated by the acquired Received Signal Strength Indicator (RSSI) of the short-distance wireless communication signal;
the mobile terminal calculates an unlocking distance threshold of the bound wearable equipment according to the distance;
and the mobile terminal unlocks according to the unlocking distance threshold.
2. The method of claim 1, wherein the other user-related events related to the wearable device other than unlocking the mobile terminal comprise: using the mobile terminal.
3. The method of claim 1, wherein the other user-related events related to the wearable device other than unlocking the mobile terminal comprise: the connection state of the mobile terminal and the wearable device changes.
4. The method of claim 1, wherein the other user-related events related to the wearable device other than unlocking the mobile terminal comprise: and processing the notification message received by the mobile terminal on the wearable device.
5. The method of claim 1, wherein the other user-related events related to the wearable device other than unlocking the mobile terminal comprise: and the mobile terminal scans the two-dimensional code on the wearable device.
6. A mobile terminal performing the method of any of claims 1 to 5.
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| CN112185082A (en) * | 2020-10-29 | 2021-01-05 | 苏丹 | Intelligence wrist-watch drops and detects reminder system |
| CN114489868B (en) * | 2021-08-04 | 2022-12-09 | 荣耀终端有限公司 | Subway trip detection method and electronic equipment |
| CN116415951A (en) * | 2021-12-28 | 2023-07-11 | 荣耀终端有限公司 | Method for displaying two-dimensional code and electronic equipment |
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| WO2018058605A1 (en) | 2018-04-05 |
| CN108369627A (en) | 2018-08-03 |
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