WO2022247390A1 - Procédé et appareil de mesure de distance de dispositif, dispositif électronique et support de stockage lisible - Google Patents

Procédé et appareil de mesure de distance de dispositif, dispositif électronique et support de stockage lisible Download PDF

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Publication number
WO2022247390A1
WO2022247390A1 PCT/CN2022/079991 CN2022079991W WO2022247390A1 WO 2022247390 A1 WO2022247390 A1 WO 2022247390A1 CN 2022079991 W CN2022079991 W CN 2022079991W WO 2022247390 A1 WO2022247390 A1 WO 2022247390A1
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distance
electronic device
parameter
received signal
signal strength
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PCT/CN2022/079991
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English (en)
Chinese (zh)
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吕生义
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Oppo广东移动通信有限公司
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Publication of WO2022247390A1 publication Critical patent/WO2022247390A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements

Definitions

  • the present application relates to the field of the Internet of Things, and more specifically, to a method, device, electronic device, and readable storage medium for measuring device distance.
  • the Internet of Things is an information carrier based on the Internet, traditional telecommunication networks, etc., which enables all ordinary physical objects that can be independently addressed to realize interconnection.
  • IoT Internet of Things
  • accuracy needs to be improved in the related manner of obtaining the distance between devices.
  • the present application proposes a method, device, electronic device, and readable storage medium for measuring device distance, so as to improve the above problems.
  • the present application provides a method for measuring the distance of a device, which is applied to a first electronic device, and the method includes: acquiring a broadcast signal transmitted by a second electronic device; based on the broadcast signal, determining the strength of the received signal and the distance A parameter; based on the received signal strength and the distance parameter, determine the distance between the second electronic device and the first electronic device.
  • the present application provides a method for measuring the distance of a device, which is applied to a first electronic device, and the method includes: receiving a received signal strength and a distance parameter sent by an intermediate device, and the received signal strength and the distance parameter are the The intermediate device obtains according to the broadcast signal transmitted by the second electronic device; and obtains the distance between the second electronic device and the intermediate device based on the received signal strength and the distance parameter.
  • the present application provides a device for measuring the distance of a device, which runs on a first electronic device, and the device includes: a signal acquisition unit, configured to acquire a broadcast signal transmitted by a second electronic device; a parameter acquisition unit, configured to Determine received signal strength and distance parameters based on the broadcast signal; a distance calculation unit configured to determine a distance between the second electronic device and the first electronic device based on the received signal strength and the distance parameter .
  • the present application provides a device for measuring the distance of a device, which runs on the first electronic device.
  • the device includes: a parameter acquisition unit, configured to receive the received signal strength and distance parameters sent by the intermediate device, and the received signal The strength and distance parameters are obtained by the intermediate device according to the broadcast signal transmitted by the second electronic device; the distance calculation unit is configured to obtain the second electronic device and the intermediate device based on the received signal strength and the distance parameter the distance between.
  • the present application provides an electronic device, including one or more processors and memory; one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the The one or more processors are executed, and the one or more programs are configured to execute the above method.
  • the present application provides a computer-readable storage medium, where a program code is stored in the computer-readable storage medium, wherein the above method is executed when the program code is running.
  • FIG. 1 shows a schematic diagram of an application scenario of a method for measuring device distance proposed by the present application
  • FIG. 2 shows a schematic diagram of an application scenario of another method for measuring device distance proposed by the present application
  • FIG. 3 shows a flow chart of a method for measuring device distance proposed by an embodiment of the present application
  • Fig. 4 shows a schematic diagram of the interaction between the first electronic device, the second electronic device and the third electronic device in the embodiment of the present application
  • FIG. 5 shows a flow chart of a method for measuring device distance proposed by another embodiment of the present application.
  • FIG. 6 shows a flow chart of a method for measuring device distance proposed by another embodiment of the present application.
  • FIG. 7 shows a flow chart of a method for measuring device distance proposed by another embodiment of the present application.
  • FIG. 8 shows a flow chart of a method for measuring device distance proposed by another embodiment of the present application.
  • FIG. 9 shows a schematic diagram of a manner of displaying prompt information in an embodiment of the present application.
  • FIG. 10 shows a schematic diagram of another way of displaying prompt information in the embodiment of the present application.
  • Fig. 11 shows a schematic diagram of another way of displaying prompt information in the embodiment of the present application.
  • Fig. 12 shows a schematic diagram of the prompt information corresponding to the wireless headset in the embodiment of the present application
  • FIG. 13 shows a flow chart of a method for measuring device distance proposed by another embodiment of the present application.
  • FIG. 14 shows a structural block diagram of an apparatus for measuring device distance proposed by an embodiment of the present application.
  • Fig. 15 shows a structural block diagram of an apparatus for measuring device distance proposed in another embodiment of the present application.
  • Fig. 16 shows a structural block diagram of an apparatus for measuring device distance proposed in another embodiment of the present application.
  • Fig. 17 is a storage unit for storing or carrying program codes for realizing the method for measuring device distance according to the embodiment of the present application according to the embodiment of the present application.
  • FIG. 18 shows a storage unit used for storing or carrying program codes for implementing the method for measuring device distance according to an embodiment of the present application in real time in the present application.
  • the Internet of Things is a network concept that extends and expands its client to any item and item for information exchange and communication on the basis of the concept of the Internet.
  • IoT technology some scenarios can be configured in the IoT system.
  • the controlled device may include one or more of devices such as wireless earphones, TVs, air conditioners, projectors, smart lights, smart sockets, air purifiers, and smart speakers.
  • the distance between two devices needs to be calculated, so that subsequent applications can be performed based on the calculated distance.
  • the inventors found that there is still a problem that the accuracy of the related method of obtaining the distance between devices needs to be improved.
  • the measuring device may calculate the distance between the device under test and the measuring device in combination with the received signal strength of the broadcast signal sent by the device under test.
  • the measuring device calculates the distance to different devices under test in combination with the received signal strength of the broadcast signal
  • the calculation method adopted is the same.
  • the same manner may include that the adopted distance calculation formulas are the same, or the parameters involved in the distance calculation formulas are the same.
  • the inventor found in the research that different devices under test have different shapes or structures, so the transmitted broadcast signal has different attenuation degrees due to the different shapes or structures. This will cause even if two devices under test with different shapes or structures are actually at the same distance from the test device, but because the transmitted broadcast signal is attenuated by its own shape or structure, the measurement device will calculate the distance to the test device. The two devices will be at different distances from themselves.
  • the inventor proposes a method, device, electronic device and readable storage medium for measuring device distance in the present application.
  • the first electronic device (measuring device) will obtain the received signal strength of the broadcast signal sent by the second electronic device, and obtain the distance parameter corresponding to the second electronic device according to the broadcast signal, and then based on the The received signal strength and the distance parameter are used to determine the distance between the second electronic device and the first electronic device. Therefore, in the process of calculating the distance, the required distance parameter can be obtained in a targeted manner for the device (second electronic device) that needs to perform distance calculation, instead of performing distance calculation for each need. All devices adopt the same distance parameter, which is beneficial to adapt to different devices that need to perform distance calculation in the process of calculating distance, so as to improve the accuracy of distance calculation between devices.
  • the scene shown in FIG. 1 includes a smart phone 100 , an electronic device 200 , and an electronic device 300 .
  • the smart phone 100 can perform data interaction with the electronic device 200 and the electronic device 300 in a wireless communication manner.
  • the smart phone 100 may be the first electronic device that performs ranging, and the electronic device 200 and the electronic device 300 may be the second electronic devices respectively.
  • the distance between the measuring device and the device under test is obtained through the interaction between the device for distance measurement and the device under test. Furthermore, the distance between the device under test and other devices can also be measured by the measuring device.
  • the electronic device 200 performs wireless communication with the smart phone 100 and the electronic device 300 respectively, while the smart phone 100 and the electronic device 300 do not perform wireless communication. Then in the scenario shown in FIG. 2 , the electronic device 200 may transmit the parameters required for calculating the distance to the smart phone 100 , and then the smart phone can calculate the distance between the electronic device 200 and the electronic device 300 .
  • wireless communication may be performed based on Bluetooth
  • wireless communication may be performed based on WiFi
  • wireless communication may also be performed based on ZigBee.
  • the smart phone 100 as the measuring device in FIG. 1 and FIG. 2 is only an exemplary example.
  • the measurement device can also be other devices, for example, a tablet computer, a smart bracelet, a smart watch, and the like.
  • a method for measuring device distance provided by an embodiment of the present application is applied to a first electronic device, and the method includes:
  • S110 Acquire a broadcast signal transmitted by the second electronic device.
  • the first electronic device can be understood as a device for performing distance calculation
  • the second electronic device is a device for measuring distance.
  • the first electronic device may calculate the distance of the second electronic device from itself.
  • the second electronic device can transmit broadcast signals after being turned on, and the first electronic device can determine to obtain the broadcast signals transmitted by the second electronic device after receiving the broadcast signals transmitted by the second electronic device.
  • S120 Determine received signal strength and distance parameters based on the broadcast signal.
  • the received signal strength of the broadcast signal can be obtained, and then the received signal strength RSSI (Received Signal Strength Indication) of the broadcast signal transmitted by the second electronic device can be obtained.
  • RSSI Receiveived Signal Strength Indication
  • the distance parameter can be understood as a parameter for determining a rule for calculating the distance between the second electronic device and the first electronic device.
  • determining a rule for calculating the distance between the second electronic device and the first electronic device may include determining a target rule from a plurality of rules for calculating the distance between the second electronic device and the first electronic device.
  • the rules that can be used to calculate the distance between the first electronic device and the second electronic device include rule p1, rule p2, and rule p3, and each rule needs to use the device whose distance is measured to emit to the first electronic device. The received signal strength of the device's broadcast signal. Then, in the case where the specific rule content of each rule is different, the calculated distance between the second electronic device and the first electronic device may be different.
  • the distance parameter corresponding to the electronic device can be used to characterize the corresponding rule when the device is used as a device whose distance is measured. For example, if the rule corresponding to the distance parameter of the second electronic device is the rule p2, then the subsequent first electronic device will calculate the distance based on the rule p2.
  • determining the rule for calculating the distance between the second electronic device and the first electronic device may include taking the distance parameter as a parameter included in the specified rule, and the specified rule is used for calculating the distance between the second electronic device distance from the first electronic device.
  • the specified rule may include multiple parameters and the manner of mutual operation among the multiple parameters.
  • the formula corresponding to the specified rule may be:
  • d represents the calculated distance value
  • RSSI represents the received signal strength of the broadcast signal
  • A represents the reference distance
  • B represents the path loss factor.
  • RSSI, parameter A and parameter B are absolute values corresponding to actual values.
  • the obtained received signal strength RSSI is -50dbm
  • the corresponding value of parameter RSSI is -50 (actual value) Take the absolute value, which is 50.
  • the distance parameter may include parameter A and parameter B in the above formula.
  • the parameter A and parameter B corresponding to different electronic devices may be different, then in the subsequent case where the distance between the second electronic device and the first electronic device needs to be calculated, the parameter corresponding to the second electronic device may be A and parameter B, as parameter A and parameter B in the specified rule.
  • determining the rule for calculating the distance between the second electronic device and the first electronic device may include using the distance parameter as the parameter of the initial parameter in the specified rule for calibration, and the specified rule is still used for calculating the second electronic device.
  • the specified rule for the distance between the second electronic device and the first electronic device and then calculate the distance between the second electronic device and the first electronic device based on the specified rule after parameter calibration.
  • the specifying rule is still the formula shown above.
  • the parameter A and parameter B can be understood as initial parameters, that is, the parameter A and parameter B respectively have their own initial values. The initial value of parameter B is adjusted in order to realize the calibration of parameter A and parameter B.
  • the distance parameter corresponding to the second electronic device includes "a” and "b”, it can be understood as adding a to parameter A in the specified rule, and adding b to parameter B in the specified rule.
  • “a” and “b” can be positive or negative.
  • the attenuation of the transmitted broadcast signal is different.
  • some external forms or internal structures may not attenuate broadcast signals, while some external forms or internal structures may not attenuate broadcast signals.
  • the structure may cause a large attenuation to the broadcast signal, so for different electronic devices, setting the corresponding distance parameters according to its external shape or internal structure will help reduce the accuracy of the external shape or internal structure for the measured distance influences.
  • the distance parameter may be a pre-configured parameter.
  • the distance parameters correspondingly configured for different electronic devices may be different.
  • the specific content that the distance parameter can represent can be various, so in the process of configuring the distance parameter, the distance parameter corresponding to the electronic device can be configured according to the content actually represented by the distance parameter.
  • the distance parameter to determine a target rule from multiple rules to calculate the distance between devices Take the distance parameter to determine a target rule from multiple rules to calculate the distance between devices as an example. In this case, you can first obtain the actual distance between the measuring device and the device under test (the device whose distance is measured), and then use multiple rules to calculate the measurement based on the received signal strength of the broadcast signal sent by the device under test. The distance between the device and the device under test, the rule corresponding to the calculated distance and the actual distance can be used as the rule corresponding to the device under test, and the distance parameter representing the corresponding rule can be configured as the device under test The corresponding distance parameter.
  • the rules for calculating the distance between the measuring device and the device under test include rule p1, rule p2 and rule p3, the actual distance between the measuring device and the device under test is 5 meters, wherein the measuring device obtains After the received signal strength of the broadcast signal transmitted by the device under test, the distance value calculated according to the received signal strength and rule p1 is 4.5 meters, and the distance value calculated according to the received signal strength and rule p2 is 4.8 meters, according to The received signal strength and the distance value calculated by rule p3 are 5.1 meters, and the distance calculated according to rule p3 is the closest to the actual distance, then rule p3 can be used as the rule corresponding to the device under test, and then the characterization rule The distance parameter of p3 is configured as the distance parameter corresponding to the device under test.
  • the distance parameter is a parameter included in the specified rule for calculating the distance between devices.
  • the rules used to calculate the distance between different devices are all the specified rules.
  • the actual distance between devices, and each time the actual distance is changed, the measuring device will obtain the received signal strength of the broadcast signal transmitted by the current device under test, and then obtain multiple sets of actual distances and received signals as shown in the following table Correspondence of signal strength.
  • the parameters in the specified rules can be calculated through the correspondence between multiple sets of actual distances and received signal strengths in the above table, and then the calculated parameters can be used as the distance parameters corresponding to the device under test. For example, consider specifying the rule as the following formula:
  • the values of parameter A and parameter B in the specified rule can be calculated as the distance parameters corresponding to the device under test.
  • the method of configuring the corresponding distance parameter for each electronic device is the same as the aforementioned distance parameter used to calculate the distance between devices.
  • the method of specifying the parameters included in the rules is the same, that is, the distance parameters corresponding to the electronic device are configured by collecting multiple sets of corresponding relationships between actual distances and received signal strengths, so details are not repeated here.
  • the distance parameter corresponding to the second electronic device can be read in S120.
  • the broadcast signal transmitted by the second electronic device may be understood as a wireless signal carrying a broadcast data packet.
  • the second electronic device may carry its own corresponding distance parameter in the broadcast data packet sent, so that the first electronic device can still obtain the second electronic device even if no wireless connection is established with the second electronic device.
  • establishing a wireless connection may be understood as a preparatory operation before data transmission. For example, if the first electronic device needs to send video data to the second electronic device, then a wireless connection needs to be established first, and the video data transmission will not start until the wireless connection is completed.
  • the second electronic device can send the broadcast data packet based on the Bluetooth BLE mode or the Wi-Fi Aware mode.
  • the second electronic device may carry a corresponding distance parameter in a specific field in the broadcast data packet sent in the process of sending the broadcast data packet in the Bluetooth BLE mode.
  • a broadcast packet format as shown in the following table.
  • the field named Length is used to represent the length of the broadcast data packet
  • the field named Type represents the connection type of the current data packet
  • the field named MFG ID represents the sending of the broadcast data packet
  • the field named iBeacon indicates that the current broadcast data packet is generated based on iBeacon mode
  • the field named MD5 represents the MD5-based encrypted device identification carried in the broadcast data packet
  • the field name is Major , Minor, and Ref are used to carry characteristic values to distinguish different data packets sent by the same device.
  • the distance parameter corresponding to the second electronic device can be added at the field of length 16Byte.
  • the data packet format and the name of each field shown in the above table are only exemplary, and the data packet format and field name of the broadcast data sent by the second electronic device can also be changed according to the actual data carried. .
  • the first electronic device can also scan the broadcast data packet based on the Bluetooth BLE mode or the Wi-Fi Aware mode, so that after scanning the broadcast data packet sent by the second electronic device, the scanned data packet is sent from the scanned second electronic device.
  • the second electronic device can also broadcast its own distance parameter in a similar manner, and correspondingly, the mobile terminal can also obtain the distance parameter of the second electronic device in a similar manner. 2. The distance parameter of the electronic device.
  • S130 Determine a distance between the second electronic device and the first electronic device based on the received signal strength and the distance parameter.
  • the distance between the second electronic device and the first electronic device can be obtained.
  • RSSI represents the received signal strength of the broadcast signal transmitted by the second electronic device
  • parameter A and parameter B are specifically parameters A and B corresponding to the second electronic device
  • the calculated d represents the second electronic device The distance from the first electronic device.
  • the second electronic device first configures its corresponding distance parameter, and then sends a broadcast data packet carrying the distance parameter corresponding to the second electronic device during subsequent operation. After obtaining the distance parameter of the second electronic device from the broadcast data packet sent by the second electronic device, the first electronic device may use the distance parameter to calculate the distance to the second electronic device. Similarly, for the third electronic device, the third electronic device will configure its corresponding distance parameter first, and then send a broadcast data packet carrying the distance parameter corresponding to the third electronic device during subsequent operation. After the first electronic device obtains the distance parameter of the third electronic device from the broadcast data packet sent by the third electronic device, it may use the distance parameter to calculate the distance to the third electronic device.
  • This embodiment provides a method for measuring the distance of a device, so that in the process of calculating the distance, in the process of calculating the distance, the required distance parameter can be targeted for the device (second electronic device) that needs to perform distance calculation.
  • the required distance parameter can be targeted for the device (second electronic device) that needs to perform distance calculation.
  • the distance parameter corresponding to the device (second electronic device) that requires distance measurement will first be added to the broadcast signal sent by the second electronic device, so that the first electronic device In the process of obtaining the received signal strength of the broadcast signal transmitted by the device, the distance parameter of the second electronic device can be obtained directly from the broadcast signal, so that the first electronic device can simultaneously obtain the The received signal strength and distance parameters improve the convenience for the first electronic device to obtain the received signal strength and distance parameters.
  • the received signal strength and distance parameters corresponding to the second electronic device are obtained according to the broadcast signal transmitted by the second electronic device, and then based on The received signal strength and the distance parameter determine the distance between the second electronic device and the first electronic device. Therefore, in the process of calculating the distance, the required distance parameter can be obtained in a targeted manner for the device (second electronic device) that needs to perform distance calculation, instead of performing distance calculation for each need. All devices adopt the same distance parameter, which is beneficial to adapt to different devices that need to perform distance calculation in the process of calculating distance, so as to improve the accuracy of distance calculation between devices.
  • a method for measuring device distance provided by an embodiment of the present application is applied to a first electronic device, and the method includes:
  • S310 Acquire a broadcast signal transmitted by the second electronic device.
  • S320 Based on the broadcast signal, determine received signal strength and an identifier of the second electronic device.
  • the identification is information for distinguishing the second electronic device from other electronic devices for uniqueness.
  • the identification of the electronic device there may be multiple ways to implement the identification of the electronic device.
  • the name of the electronic device may be used as the identifier of the electronic device, and the physical address of the electronic device may also be used as the identifier of the electronic device.
  • the first electronic device may obtain the identifier of the second electronic device from a broadcast signal transmitted by the second electronic device. In this manner, the identifier of the second electronic device will be directly added to the broadcast signal transmitted by the second electronic device.
  • the first electronic device may determine the identifier of the second electronic device according to the composition format of the data sent by the second electronic device.
  • an electronic device may generate data to be sent through a specified protocol, and the protocol defines a composition format of the generated data.
  • the first electronic device can determine the identifier corresponding to the second electronic device by identifying the composition format of the data.
  • the corresponding relationship between the composition format and the identification can be established in advance, then after obtaining the composition format of the data sent by the second electronic device, the identification of the second electronic device can be obtained according to the correspondence between the composition format and the identification .
  • S330 Determine a distance parameter corresponding to the identifier of the second electronic device according to the pre-established correspondence between the identifier and the distance parameter.
  • the corresponding relationship between the identifier and the distance parameter in this embodiment may be established during the process of configuring the distance parameter corresponding to the device under test in the foregoing embodiment.
  • the corresponding relationship can be stored in the form of the following data table.
  • the mark 1 corresponds to the distance parameter 1
  • the mark 2 corresponds to the distance parameter 2
  • the mark 3 corresponds to the distance parameter 3
  • the mark 4 corresponds to the distance parameter 4.
  • the first electronic device may be stored in the first electronic device before the first electronic device leaves the factory. Then in this way, after obtaining the identifier of the second electronic device, the first electronic device can obtain the distance parameter corresponding to the identifier of the second electronic device by searching locally.
  • the corresponding relationship can be stored in the cloud server after being suggested, then the first electronic device can send the identification of the second electronic device to the cloud server after obtaining the identification of the second electronic device The query instruction, and then make the cloud server query the distance parameter corresponding to the identifier of the second electronic device in response to the query instruction, and return the query distance parameter to the first electronic device.
  • the correspondence between the identification and the distance parameter can also be stored in the cloud server synchronously, and can also Periodically update the corresponding relationship stored in the cloud server. And, after the cloud server finishes updating the corresponding relationship, it can also push the updated corresponding relationship to the first electronic device.
  • S340 Determine a distance between the second electronic device and the first electronic device based on the received signal strength and the distance parameter.
  • the first electronic device may determine which method to use to obtain the distance parameter corresponding to the second electronic device according to the current actual environment.
  • the first electronic device may first detect whether the corresponding relationship between the distance parameter and the identifier has been stored in the local or cloud server, and if it detects that the corresponding relationship between the distance parameter and the identifier has been stored in the local or cloud server, then In the process of obtaining the distance parameter corresponding to the second electronic device, the distance parameter corresponding to the second electronic device is directly obtained according to the correspondence between the distance parameter and the identifier stored in the local or cloud server. Moreover, if it is determined that the distance parameter corresponding to the second electronic device is obtained according to the corresponding relationship stored in the local or cloud server, the first electronic device will not perform the extraction from the broadcast data packet sent by the second electronic device. The operation of the distance parameter in order to save resources of the first electronic device.
  • the first electronic device can analyze the broadcast data packet sent by the second electronic device during the process of obtaining the distance parameter In order to get the distance parameter from it.
  • the first electronic device may detect whether there is a corresponding relationship stored locally or in a cloud service in multiple stages. As a manner, the first electronic device may start to detect after being turned on, or may start to detect after detecting that a specified application program is started.
  • the designated application program may be an application program used to calculate the distance between devices.
  • the first electronic device may first obtain the type of the second electronic device, and then determine which method to use according to the type of the second electronic device. A distance parameter corresponding to the second electronic device is acquired.
  • the electronic device can increase its own distance parameter in the broadcast data packet during the process of sending the broadcast data packet by changing the program of the electronic device to generate the broadcast data packet in advance.
  • some electronic devices Changes to the procedure for producing broadcast packets may not be supported. Therefore, some electronic devices may not be able to add their own corresponding distance parameters in the broadcast data packet, then the first electronic device can record the type of electronic device that supports adding distance parameters in the broadcast data packet by storing the type list . Then, in the process of obtaining the distance parameter, the first electronic device can first obtain the type of the second electronic device, and then inquire whether the type of the second electronic device is recorded in the type list.
  • the distance parameter corresponding to the second electronic device is obtained from the received broadcast data packet of the second electronic device. If there is no type of the second electronic device in the type list, the distance parameter corresponding to the second electronic device is obtained by obtaining the identification of the second electronic device and closing the correspondence between the identification and the distance parameter.
  • the electronic device may also add a version number corresponding to the distance parameter in the broadcast data packet.
  • the version number of the distance parameter corresponding to the identifier may also be increased.
  • the distance parameter corresponding to the electronic device may be corrected, and the corrected distance parameter will be different from the previous distance parameter.
  • the distance calculated based on the distance parameter corresponding to the latest version number may be the most accurate.
  • the first electronic device can obtain the version number corresponding to the distance parameter obtained from the broadcast data packet sent by the second electronic device as the first version number, and the acquisition is based on the local or Then the version number corresponding to the distance parameter obtained in the cloud server is the second version number, and then the latest version number of the distance parameter corresponding to the first version number and the second version number is obtained as the target version number, and then the target version number
  • the corresponding distance parameter is used as the acquired version number corresponding to the second electronic device. Furthermore, if it is determined that the first version number and the second version number are the same, then one of the aforementioned determination methods may be selected to determine how to obtain the corresponding distance parameter of the second electronic device.
  • the first version number is the latest version number
  • determine that the distance parameter corresponding to the first version number is the latest distance parameter, and correspondingly use the first version number as the target version number.
  • determine that the second version number is the latest version number
  • determine that the distance parameter corresponding to the second version number is the latest distance parameter, and correspondingly use the second version number as the target version number.
  • a selection control may be configured in the first electronic device, and then the electronic device may determine which method to use to obtain the distance parameter corresponding to the second electronic device through the current state corresponding to the selection control.
  • the user of the first electronic device can change the current state corresponding to the selection control by operating the selection control. For example, if the selection control includes a first state and a second state, wherein the first state corresponds to obtaining the distance parameter corresponding to the second electronic device from the broadcast data packet, and the second state corresponds to obtaining the distance parameter corresponding to the second electronic device from the local or cloud server. The distance parameter corresponding to the second electronic device is obtained from the stored correspondence.
  • the first electronic device detects that the selection control is in the first state during the process of obtaining the distance parameter corresponding to the second electronic device, then after obtaining the broadcast data packet sent by the second electronic device, it will The distance parameter corresponding to the second electronic device is obtained from the packet. Detecting that the selection control is in the second state, the distance parameter corresponding to the second electronic device will be obtained based on the correspondence between the identifier and the distance parameter stored in the local or cloud server.
  • This embodiment provides a method for measuring the distance of a device, so that in the process of calculating the distance, in the process of calculating the distance, the required distance parameter can be targeted for the device (second electronic device) that needs to perform distance calculation.
  • the required distance parameter can be targeted for the device (second electronic device) that needs to perform distance calculation.
  • the corresponding relationship between the device identifier and the distance parameter is established in advance, so that after the identifier of the second electronic device is obtained, the distance parameter of the second electronic device can be obtained according to the corresponding relationship .
  • a method for measuring device distance provided by an embodiment of the present application is applied to a first electronic device, and the method includes:
  • S410 Acquire a broadcast signal transmitted by the second electronic device.
  • S420 Based on the broadcast signal, determine a received signal strength and a distance parameter, where the distance parameter is a parameter corresponding to a specified rule, and the specified rule is used to obtain a distance between devices according to the received signal strength of the broadcast signal.
  • S430 Determine a distance between the second electronic device and the first electronic device based on the specified rule, received signal strength, and the distance parameter.
  • the distance parameter being a parameter corresponding to the specified rule may be understood as the distance parameter being a parameter included in the specified rule.
  • the distance parameter being a parameter included in the specified rule may be understood as the distance parameter being a parameter included in the specified rule.
  • the parameters included in the formula include parameter RSSI, parameter A and parameter B, and then the distance parameter may be any one or both of parameter A and parameter B among them.
  • the distance parameter being a parameter corresponding to the specified rule may be understood as the distance parameter being a parameter for calibrating the parameters included in the specified rule.
  • the determining the distance between the second electronic device and the first electronic device based on the specified rule, the received signal strength and the distance parameter includes: based on the distance Parameters: Calibrate the parameters included in the specified rules to obtain calibrated parameters; determine the relationship between the second electronic device and the first electronic device based on the specified rules, the received signal strength, and the calibrated parameters distance between devices.
  • the specified rule is the following formula as an example, the formula is:
  • the parameters included in the formula include parameters RSSI, parameter A, and parameter B
  • the calibration of the parameters included in the specified rules through the distance parameter can be understood as the calibration of the initial values of the parameters included in the specified regulations.
  • both parameters A and B can have their own initial values.
  • the distance parameters corresponding to the second electronic device include "a" and "b”, it can be understood as adding parameter A in the specified rule to On a, add b to the parameter B in the specified rule.
  • the specified rules in the process of calculating the second electronic device and the first electronic device will be transformed into the following form:
  • This embodiment provides a method for measuring the distance of a device, so that in the process of calculating the distance based on the specified rule, the distance parameter required by the specified rule can be targeted at the device that needs to perform distance calculation (the second electronic device) ) for targeted acquisition, instead of using the same distance parameter for each device that needs to calculate the distance in the case of calculating the distance based on the specified rules, which is conducive to making it possible to adapt to the distance-based process Different devices that need to perform distance calculations in order to improve the accuracy of distance calculations between devices.
  • a method for measuring device distance provided by an embodiment of the present application is applied to a first electronic device, and the method includes:
  • S510 Acquire a broadcast signal transmitted by the second electronic device.
  • S520 Based on the broadcast signal, determine a received signal strength and a distance parameter, where the distance parameter represents a rule of a distance between corresponding selected computing devices.
  • the distance parameter can be understood as a rule identifier, and after obtaining the rule identifier corresponding to the second electronic device, the corresponding rule can be obtained as the target rule according to the rule identifier.
  • S540 Determine the distance between the second electronic device and the first electronic device based on the received signal strength and the target rule.
  • This embodiment provides a method for measuring the distance of a device, so that in the process of calculating the distance, the target rule currently used for calculating the distance can be determined according to the distance parameter corresponding to the second electronic device, and then according to the target The distance between the second electronic device and the first electronic device is calculated by using rules and received signal strength.
  • the rules for calculating the distance can be obtained in a targeted manner for the device (the second electronic device) that needs to calculate the distance, instead of using the same calculation rule for each device that needs to calculate the distance. It is beneficial to adapt to different devices that need to perform distance calculation in the process of calculating distance, so as to improve the accuracy of distance calculation between devices.
  • a method for measuring device distance provided by an embodiment of the present application is applied to a first electronic device, and the method includes:
  • S610 Acquire a broadcast signal transmitted by the second electronic device.
  • S620 Determine received signal strength and distance parameters based on the broadcast signal.
  • S630 Determine a distance between the second electronic device and the first electronic device based on the received signal strength and the distance parameter.
  • S640 Detect whether the distance is greater than a distance threshold.
  • the distance threshold If the distance is greater than or equal to the distance threshold, go back and re-execute the above steps to obtain the distance between the second electronic device and the first electronic device again.
  • the distance between the electronic devices represents the distance between the electronic devices. If the distance between the electronic devices is larger, it means that the distance between the electronic devices is farther, and if the distance between the electronic devices is smaller, it means that the distance between the electronic devices is closer. Then, when the distance between the electronic devices is small to a certain extent, the prompt information corresponding to the second electronic device may be triggered.
  • the prompt information can be used to prompt the current distance relationship between the second electronic device and the first electronic device, and can also be used to prompt the user that functions related to the second electronic device can be triggered currently.
  • the distance relationship may include the distance between the second electronic device and the first electronic device. For example, as shown in FIG. 9 , in the scene shown in FIG.
  • the smartphone held by the user may be the first electronic device, and the TV and air conditioner included in the scene may be the second electronic device respectively.
  • the smart phone 100 can display the distance information display interface 10 , and the distance between the TV, the air conditioner and the smart phone 100 is displayed on the distance information display interface 10 .
  • the distance information display interface 10 For example, “the TV is 5 meters away from you” and "the air conditioner is 7 meters away from you” displayed on the distance information display interface 10 .
  • the distance between the second electronic device and the first electronic device when the distance between the second electronic device and the first electronic device is small enough to a certain extent (for example, less than the distance threshold), it may be triggered between the first electronic device and the second electronic device to communicate with the second electronic device. corresponding function.
  • the second electronic device as a TV as an example
  • the first electronic device may project the screen being displayed by the first electronic device to the TV.
  • a floating icon 11 when the smart phone 100 as the first electronic device detects that the distance between the TV as the second electronic device and itself is less than the distance threshold, a floating icon 11 may be displayed on the screen as a prompt information. The floating icon 11 is used to remind the user that the screen of the smart phone 100 can be cast to the TV at present.
  • an operation corresponding to the second electronic device is performed.
  • different second electronic devices may have different functions, and the first electronic device may correspondingly perform different operations, so as to trigger the second electronic device to perform corresponding functions.
  • FIG. 11 please refer to FIG. 11 again.
  • the smart phone 100 detects a touch operation acting on the floating icon 11, then it will perform the screen projection operation corresponding to the TV, and then the screen will be projected. screen to the TV for playback.
  • the user may be using the first electronic device to play a game.
  • the game interface 20 is displayed in full screen. If the content is suspended directly on the game interface, the suspended content may cause interference to the user.
  • the screen size of the game interface 20 originally displayed in full screen can be reduced, and the status bar 30 can be displayed in the vacant position after reduction.
  • prompt information 31 is displayed in the status bar 30 .
  • the prompt information 31 may also respond to the user's touch operation.
  • the second electronic device in the embodiment of the present application may be other devices besides the television and the air conditioner described above.
  • smart watches, smart bracelets, and wireless earphones can also be used.
  • the wireless earphone can usually be placed in a matching earphone box.
  • the smart phone 100 may display prompt information on the interface 40 .
  • the prompt information in the interface 40 is used to remind the user that the earphone box matched with the wireless earphone is currently in an open state.
  • a control named connection may be displayed on the interface 40 , and if a touch operation on the control named connection is detected, then the establishment of a connection between the smart phone 100 and the wireless earphone may be triggered.
  • This embodiment provides a method for measuring the distance of a device, so that in the process of calculating the distance, in the process of calculating the distance, the required distance parameter can be targeted for the device (second electronic device) that needs to perform distance calculation.
  • the required distance parameter can be targeted for the device (second electronic device) that needs to perform distance calculation.
  • the obtained distance between the second electronic device and the first electronic device will be further compared with the distance threshold, and then when the distance is smaller than the distance threshold, display the distance between the second electronic device and the second electronic device.
  • the prompt information corresponding to the electronic device may also be used to respond to a touch operation, so as to perform an operation corresponding to the second electronic device. Therefore, it is realized that the first electronic device can interact with the second electronic device more accurately.
  • a method for measuring device distance provided by an embodiment of the present application is applied to a first electronic device, and the method includes:
  • S710 Receive received signal strength and distance parameters sent by the intermediate device, where the received signal strength and distance parameters are acquired by the intermediate device according to the broadcast signal transmitted by the second electronic device.
  • the first electronic device in this embodiment is still a device for performing distance calculation. Moreover, in this embodiment, the first electronic device may acquire the distance between the other two devices. Correspondingly, the intermediate device will detect the received signal strength of the received broadcast signal transmitted by the second electronic device, and then send the obtained received signal strength to the first electronic device.
  • the first electronic device may send a data collection instruction to the intermediate device, and then the intermediate device starts to obtain the broadcast signal transmitted by the second electronic device in response to the data collection instruction, and sends the collected received signal strength to the second electronic device. an electronic device.
  • the first electronic device may obtain the distance parameter corresponding to the second electronic device based on the manner in the foregoing embodiments.
  • the intermediate device can obtain the distance parameter corresponding to the second electronic device based on the method in the foregoing embodiments, and then send the distance parameter together with the received signal strength to the first electronic device, so that the first electronic device The device can obtain the distance parameter and received signal strength corresponding to the second electronic device while traversing.
  • the intermediate device will also send the distance parameter of the second electronic device to the first electronic device.
  • S720 Acquire a distance between the second electronic device and the intermediate device based on the received signal strength and the distance parameter.
  • the first electronic device After the first electronic device acquires the distance parameter and received signal strength, it can calculate the distance between the second electronic device and the intermediate device based on the manner in the foregoing embodiments. Moreover, the calculated distance can be displayed in real time. So that the user can know the distance between the second electronic device and the intermediate device in time.
  • the second electronic device may be determined by the first electronic device.
  • the broadcast data packet sent by the electronic device may carry its own identity, so that the electronic device that receives the broadcast data packet can determine which devices can currently receive the broadcast data packet sent by it.
  • the data collection instruction sent by the first electronic device to the intermediate device may carry the identifier of the device under test, and then the intermediate device may use the device corresponding to the identifier as the second electronic device, and acquire the second electronic device. The received signal strength corresponding to the electronic device.
  • the intermediate device may be various devices.
  • the intermediate device may be a router, a gateway, a smart bracelet, a smart watch, or a smart phone.
  • the received information corresponding to the second electronic device will be obtained according to the broadcast signal transmitted by the second electronic device.
  • Signal strength and distance parameters Based on the received signal strength and the distance parameters, the distance between the second electronic device and the intermediate device is acquired. Therefore, in the process of calculating the distance, the required distance parameter can be obtained in a targeted manner for the device (second electronic device) that needs to perform distance calculation, instead of performing distance calculation for each need. All devices adopt the same distance parameter, which is beneficial to adapt to different devices that need to perform distance calculation in the process of calculating distance, so as to improve the accuracy of distance calculation between devices.
  • an apparatus 800 for measuring device distance provided by an embodiment of the present application, which operates on the first electronic device, and the apparatus 800 includes:
  • a signal acquiring unit 810 configured to acquire a broadcast signal transmitted by the second electronic device
  • a parameter acquisition unit 820 configured to determine received signal strength and distance parameters based on the broadcast signal
  • the distance calculation unit 830 is configured to determine the distance between the second electronic device and the first electronic device based on the received signal strength and the distance parameter.
  • the parameter acquisition unit 820 is specifically configured to receive the broadcast data packet sent by the second electronic device; obtain and determine the received signal strength and distance parameters from the broadcast data packet. in this way.
  • the parameter acquisition unit 820 is specifically configured to determine the strength of the received signal and the identity of the second electronic device based on the broadcast signal; The distance parameter corresponding to the identity of the device.
  • the distance parameter is a parameter corresponding to a specified rule
  • the specified rule is used to obtain the distance between devices according to the received signal strength of the broadcast signal.
  • the distance calculating unit 830 is specifically configured to determine the distance between the second electronic device and the first electronic device based on the specified rule, received signal strength and the distance parameter.
  • the distance parameter is a parameter included in the specified rule.
  • the distance parameter is a parameter used to calibrate the parameters included in the specified rule, and the distance calculation unit 830 is specifically configured to calibrate the parameters included in the specified rule based on the distance parameter, to obtain Calibrated parameters: determining the distance between the second electronic device and the first electronic device based on the specified rule, the received signal strength, and the calibrated parameters.
  • the distance parameter represents a rule of the distance between the corresponding selected computing devices.
  • the distance calculation unit 830 is specifically configured to acquire a rule corresponding to the distance parameter as a target rule; determine the distance between the second electronic device and the first electronic device based on the received signal strength and the target rule distance.
  • the apparatus further includes: a function triggering unit 840, configured to display prompt information corresponding to the second electronic device if the distance is less than a distance threshold. Furthermore, the function triggering unit 840 is further configured to execute an operation corresponding to the second electronic device in response to a touch operation acting on the prompt information.
  • the device for measuring the distance of a device in the process of calculating the distance of the device, will obtain the received signal strength and distance parameters corresponding to the second electronic device according to the broadcast signal transmitted by the second electronic device, and then based on The received signal strength and the distance parameter determine the distance between the second electronic device and the first electronic device. Therefore, in the process of calculating the distance, the required distance parameter can be obtained in a targeted manner for the device (second electronic device) that needs to perform distance calculation, instead of performing distance calculation for each need. All devices adopt the same distance parameter, which is beneficial to adapt to different devices that need to perform distance calculation in the process of calculating distance, so as to improve the accuracy of distance calculation between devices.
  • an apparatus 900 for measuring device distance provided by an embodiment of the present application, which operates on the first electronic device, and the apparatus 900 includes:
  • the parameter acquisition unit 910 is configured to receive received signal strength and distance parameters sent by the intermediate device, and the received signal strength and distance parameters are acquired by the intermediate device according to the broadcast signal transmitted by the second electronic device;
  • the distance calculation unit 930 is configured to acquire the distance between the second electronic device and the intermediate device based on the received signal strength and the distance parameter.
  • the device for measuring the distance between devices in this embodiment, in the process of calculating the device distance between the second electronic device and the intermediate device, will obtain the corresponding reception information of the second electronic device according to the broadcast signal transmitted by the second electronic device. Signal strength and distance parameters. Based on the received signal strength and the distance parameters, the distance between the second electronic device and the intermediate device is acquired. Therefore, in the process of calculating the distance, the required distance parameter can be obtained in a targeted manner for the device (second electronic device) that needs to perform distance calculation, instead of performing distance calculation for each need. All devices adopt the same distance parameter, which is beneficial to adapt to different devices that need to perform distance calculation in the process of calculating distance, so as to improve the accuracy of distance calculation between devices.
  • the method, device, electronic device, and readable storage medium provided by the present application for measuring the distance of a device will obtain the second distance according to the broadcast signal transmitted by the second electronic device in the process of calculating the distance of the device.
  • the received signal strength and the distance parameter corresponding to the two electronic devices, and then based on the received signal strength and the distance parameter, the distance between the second electronic device and the first electronic device is determined. Therefore, in the process of calculating the distance, the required distance parameter can be obtained in a targeted manner for the device (second electronic device) that needs to perform distance calculation, instead of performing distance calculation for each need. All devices adopt the same distance parameter, which is beneficial to adapt to different devices that need to perform distance calculation in the process of calculating distance, so as to improve the accuracy of distance calculation between devices.
  • the electronic device 1000 includes one or more (only one is shown in the figure) processors 102 , memory 104 and network module 106 coupled to each other.
  • the memory 104 stores programs capable of executing the contents of the foregoing embodiments, and the processor 102 can execute the programs stored in the memory 104 .
  • the processor 102 may include one or more processing cores.
  • the processor 102 uses various interfaces and circuits to connect various parts of the entire electronic device 1000, and executes or executes instructions, programs, code sets, or instruction sets stored in the memory 104, and calls data stored in the memory 104 to execute Various functions of the electronic device 1000 and processing data.
  • the processor 102 may adopt at least one of Digital Signal Processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable Logic Array, PLA). implemented in the form of hardware.
  • DSP Digital Signal Processing
  • FPGA Field-Programmable Gate Array
  • PLA Programmable Logic Array
  • the processor 102 may integrate one or a combination of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), a modem, and the like.
  • CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • the CPU mainly handles the operating system, user interface and application programs, etc.
  • the GPU is used to render and draw the displayed content
  • the modem is used to handle wireless communication. It can be understood that the above modem may also not be integrated into the processor 102, but implemented by a communication chip alone.
  • the memory 104 may include random access memory (Random Access Memory, RAM), and may also include read-only memory (Read-Only Memory). Memory 104 may be used to store instructions, programs, codes, sets of codes, or sets of instructions.
  • the memory 104 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, a sound playback function, an image playback function, etc.) , instructions for implementing the following method embodiments, and the like.
  • the device for measuring device distance in the foregoing embodiments may also be stored in the memory 104 .
  • the network module 106 is used to implement information interaction between the electronic device 1000 and other devices, for example, transmitting device control instructions, manipulation request instructions, and status information acquisition instructions. However, when the electronic device 200 is specifically a different device, its corresponding network module 106 may be different.
  • the sensor module 108 may include at least one sensor.
  • the sensor module 108 may include, but is not limited to: a light sensor, a motion sensor, a pressure sensor, an infrared heat sensor, a distance sensor, an acceleration sensor, and other sensors.
  • the pressure sensor may be a sensor for detecting pressure generated by pressing on the electronic device 1000 . That is, the pressure sensor detects pressure generated by contact or press between the user and the electronic device, eg, contact or press between the user's ear and the mobile terminal. Therefore, the pressure sensor can be used to determine whether contact or pressure occurs between the user and the electronic device 1000, and the magnitude of the pressure.
  • the acceleration sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is still, and can be used to identify the application of electronic equipment 1000 attitude (such as horizontal and vertical screen switching, related games, magnetometer, etc.) Attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.
  • the electronic device 1000 may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, and a thermometer, which will not be repeated here.
  • the electronic device 1000 is used as the smart phone 100 in the application environment shown in FIG. 1 or FIG.
  • Receive and send electromagnetic waves realize the mutual conversion between electromagnetic waves and electrical signals, and communicate with communication networks or other devices.
  • the radio frequency module may include various existing circuit elements for performing these functions, such as antenna, radio frequency transceiver, digital signal processor, encryption/decryption chip, Subscriber Identity Module (SIM) card, memory and so on.
  • SIM Subscriber Identity Module
  • the radio frequency module can perform information interaction with the base station by sending or receiving electromagnetic waves.
  • FIG. 18 shows a structural block diagram of a computer-readable storage medium provided by an embodiment of the present application.
  • Program codes are stored in the computer-readable medium 900, and the program codes can be invoked by a processor to execute the methods described in the foregoing method embodiments.
  • the computer readable storage medium 900 may be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM.
  • the computer-readable storage medium 900 includes a non-transitory computer-readable storage medium (non-transitory computer-readable storage medium).
  • the computer-readable storage medium 900 has a storage space for program code 910 for executing any method steps in the above methods. These program codes can be read from or written into one or more computer program products.
  • Program code 910 may, for example, be compressed in a suitable form.

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Abstract

Des modes de réalisation de la présente demande concernent un procédé et un appareil permettant de mesurer une distance de dispositif, un dispositif électronique et un support de stockage lisible. Le procédé comprend les étapes consistant à : obtenir un signal de diffusion transmis par un deuxième dispositif électronique ; déterminer une intensité de signal reçu et un paramètre de distance en fonction du signal de diffusion ; et déterminer une distance entre le deuxième dispositif électronique et un premier dispositif électronique en fonction de l'intensité de signal reçue et du paramètre de distance. De cette manière, dans un processus de calcul de distance, un paramètre de distance requis peut être obtenu d'une manière ciblée pour un dispositif (le deuxième dispositif électronique) nécessitant un calcul de distance au lieu de la situation selon laquelle le même paramètre de distance est utilisé pour chaque dispositif nécessitant un calcul de distance, ce qui facilite l'adaptation à différents dispositifs nécessitant un calcul de distance dans le processus de calcul de distance, de telle sorte que la précision du calcul de distance entre des dispositifs est améliorée.
PCT/CN2022/079991 2021-05-26 2022-03-09 Procédé et appareil de mesure de distance de dispositif, dispositif électronique et support de stockage lisible WO2022247390A1 (fr)

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