WO2022158768A1 - Appareil et procédé de marquage d'informations d'emplacement vers des métadonnées de contenu - Google Patents

Appareil et procédé de marquage d'informations d'emplacement vers des métadonnées de contenu Download PDF

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Publication number
WO2022158768A1
WO2022158768A1 PCT/KR2022/000351 KR2022000351W WO2022158768A1 WO 2022158768 A1 WO2022158768 A1 WO 2022158768A1 KR 2022000351 W KR2022000351 W KR 2022000351W WO 2022158768 A1 WO2022158768 A1 WO 2022158768A1
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Prior art keywords
electronic device
location information
geo
fence
user
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PCT/KR2022/000351
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English (en)
Korean (ko)
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서윤화
구명우
이성규
임성규
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삼성전자주식회사
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Publication of WO2022158768A1 publication Critical patent/WO2022158768A1/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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25808—Management of client data
    • H04N21/25841—Management of client data involving the geographical location of the client
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4524—Management of client data or end-user data involving the geographical location of the client
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds

Definitions

  • the following disclosure relates to a technique for tagging location information in metadata of content.
  • the mobile terminal may continuously position the location regardless of the user's movement in order to insert the location as a tag in an image file such as a photo or video.
  • the mobile terminal can localize a location using a Network Location Provider as well as a Global Navigation Satellite System provider (GNSS) for indoor and outdoor positioning. have.
  • GNSS Global Navigation Satellite System provider
  • the mobile terminal may tag the most recently updated location to the photo while taking the photo. When a picture is taken before positioning, the insertion of a tag regarding the location of the picture may be omitted.
  • the mobile terminal may present the location-tagged photos to the user by grouping them based on the scale and distance of the map.
  • the mobile terminal may collect photos of a wider range into one group, and if the scale of the currently displayed map is small, the mobile terminal may collect and present photos of a narrower range as a group to the user.
  • An electronic device includes a display; a processor electrically connected to the display; a memory electrically coupled to the processor; one or more sensors for sensing sensed data related to the user's activity; a GNSS module for estimating location information of the electronic device by receiving a global navigation satellite system (GNSS) signal from a satellite; and a wireless communication module capable of establishing communication with an external device, wherein the processor is configured to: monitor an activity level of the user based on the sensed data during execution of an application for generating content, and monitor the activity level of the user based on the activity level Initiate localization using at least one of a GNSS module and the wireless communication module, and based on a temporary geofence into which the electronic device is entering in response to acquiring new location information by the localization until a content creation time It may be configured to update the valid location information of the electronic device while verifying the validity of the acquired new location information, and to add the updated valid location information to the metadata of the content.
  • GNSS global navigation satellite system
  • the processor is configured to: infer an activity state of the user from the sensed data, and determine an activity distance, an activity velocity, or an activity acceleration based on the inferred activity state. It may be further configured to calculate at least one or a combination of two or more of at least one of the activity levels as the activity level, and to initiate the positioning in response to the calculated activity level exceeding a threshold level.
  • the processor may be further configured to: determine that the new location information is valid in response to the case that the new location information belongs to the temporary geo-fence based on the comparison between the new location information and the temporary geo-fence.
  • the processor may be further configured to: in response to the case that the new location information does not belong to the temporary geofence, discard the new location information.
  • the processor may be further configured to: add previously valid location information to the metadata of the content in response to the case that the positioning fails until the time of content creation.
  • the processor may be further configured to: generate the temporary geo-fence when the electronic device is excluded from a plurality of preset user geo-fences.
  • the processor is configured to: respond when the GNSS module obtains GNSS location information having a reliability exceeding a threshold reliability while the electronic device is excluded from the plurality of user geofences, indicated by the GNSS location information It may be further configured to determine a location point as a center point of the temporary geo-fence.
  • the processor is configured to: determine whether to replace the center point of the temporary geofence with the effective location information based on a comparison between the priority level of the updated effective location information and the priority level of the temporary geofence More can be set.
  • the processor may be further configured to: calculate a radius of the temporary geo-fence based on an estimated movement distance estimated based on at least one of an activity of the user and a speed limit.
  • the processor is configured to: In response to at least one of a case in which a base station establishing communication with the electronic device is changed and a case in which a change in signal strength measured by the GNSS module exceeds a threshold strength difference, the user It may be further set to exclude the distance movement inferred according to the activity of the user and calculate the radius of the temporary geofence based on the speed limit set for each activity type of the user and the time interval from the previous effective time to the time when the positioning is started have.
  • the processor determines the radius of the temporary geofence by adding an error range of the effective location information to the expected movement distance deduced based on the activity when the estimated movement distance inferred from the user's activity is within a predetermined movement range. It can be further set to
  • the processor is configured to: In response to at least one of a case where the radius calculated for the temporary geofence exceeds a required resolving power and a case where a threshold holding time is exceeded without updating the temporary geofence, the temporary geofence is configured to: It may be further configured to discard the fence.
  • the processor may be further configured to: skip verification of new location information obtained by the positioning while the electronic device enters within one user geo-fence among a plurality of preset user geo-fences.
  • the processor may be further configured to: add a center point of the user geo-fence to the metadata of the content in response to the case where the previous valid location information belongs to the user geo-fence and the positioning fails until the content creation time.
  • the processor may be further configured to: obtain new location information for each location provider for every positioning, verify whether each new location information belongs to the temporary geofence, and record valid location information for each location provider.
  • the processor is configured to: if the location of the content tagged in the metadata of the target content belongs to one user geofence among a plurality of user geofences stored in the electronic device, the target content is grouped based on the user geofence to provide the user with the target content. It may be further set to provide.
  • the processor is configured to: generate a group geofence by using the plurality of target contents when the location of the contents tagged in the metadata of the plurality of target contents is excluded from the plurality of user geofences stored in the electronic device; It may be further configured to group the plurality of target contents using the group geo-fence and provide them to the user.
  • the processor is configured to: determine an average position of a plurality of target contents as the center point of the group geo-fence, and determine a distance from the center point of the group geo-fence among the plurality of target contents to the farthest target content as the radius of the group geo-fence , and may be further set to limit the radius of the group geo-fence within a tagging error range.
  • a method implemented by a processor includes: monitoring an activity level of the user based on sensed data related to the activity of the user during execution of an application for generating content; initiating localization using at least one of a communication with an external device and a Global Navigation Satellite System (GNSS) signal received from a satellite, based on the activity level; The effective location of the electronic device while verifying the validity of the acquired new location information based on the temporary geo-fence into which the electronic device is entering in response to the case of acquiring new location information by the location until the content creation time updating information; and adding the updated valid location information to the metadata of the content.
  • GNSS Global Navigation Satellite System
  • FIG. 1 is a block diagram of an electronic device according to various embodiments of the present disclosure.
  • FIG. 2 shows a block diagram illustrating a program in accordance with various embodiments.
  • FIG 3 illustrates a positioning time point and a content generation time point according to various embodiments of the present disclosure.
  • FIG. 4 is a flowchart illustrating a method of tagging location information according to various embodiments of the present disclosure
  • FIG. 5 is a flowchart illustrating an operation of determining whether to enter a geo-fence according to various embodiments of the present disclosure
  • FIG. 6 is a flowchart illustrating an operation of updating valid location information and a tagging operation while an electronic device enters a temporary geo-fence, according to various embodiments of the present disclosure
  • FIG. 7 is a diagram illustrating an operation in which an electronic device verifies new location information based on a temporary geo-fence, according to various embodiments of the present disclosure
  • FIG. 8 is a flowchart illustrating an operation in which an electronic device determines whether to maintain and discard a temporary geo-fence, according to various embodiments of the present disclosure
  • FIG. 9 is a view for explaining an exemplary criterion for discarding a temporary geo-fence by an electronic device according to various embodiments of the present disclosure.
  • FIG. 10 is a flowchart illustrating an operation of tagging valid location information while an electronic device enters a user geo-fence according to various embodiments of the present disclosure
  • FIG. 11 is a flowchart illustrating an operation of grouping content by an electronic device according to various embodiments of the present disclosure
  • FIG. 1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments.
  • an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with at least one of the electronic device 104 and the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 .
  • a first network 198 eg, a short-range wireless communication network
  • a second network 199 e.g., a second network 199
  • the electronic device 101 may communicate with the electronic device 104 through the server 108 .
  • the electronic device 101 includes a processor 120 , a memory 130 , an input module 150 , a sound output module 155 , a display module 160 , an audio module 170 , and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or an antenna module 197 .
  • at least one of these components eg, the connection terminal 178
  • some of these components are integrated into one component (eg, display module 160 ). can be
  • the processor 120 for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be stored in , process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 .
  • software eg, a program 140
  • the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 .
  • the volatile memory 132 may be stored in , process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 .
  • the processor 120 may generate content (eg, take a picture) and display it on the display module 160 , collect various metadata information including location information at the moment of storing the content, and add it to the corresponding content. .
  • an operation of adding additional information to metadata of content may be referred to as a tagging operation.
  • the processor 120 measures and/or estimates the location of the electronic device 101 by using the GNSS module 193 and the wireless communication module 192 as an example of metadata tagged to the content. can do.
  • the processor 120 may store content (eg, photo) and additional information (eg, location information) related to the content in the memory 130 .
  • the processor 120 is the main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor).
  • the main processor 121 eg, a central processing unit or an application processor
  • a secondary processor 123 eg, a graphic processing unit, a neural network processing unit (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor.
  • the main processor 121 e.g, a central processing unit or an application processor
  • a secondary processor 123 eg, a graphic processing unit, a neural network processing unit (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a
  • the secondary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or when the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states.
  • the coprocessor 123 eg, an image signal processor or a communication processor
  • may be implemented as part of another functionally related component eg, the camera module 180 or the communication module 190 ). have.
  • the auxiliary processor 123 may include a hardware structure specialized for processing an artificial intelligence model.
  • Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108).
  • the learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited
  • the artificial intelligence model may include a plurality of artificial neural network layers.
  • Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example.
  • the artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.
  • the memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176 ) of the electronic device 101 .
  • the data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto.
  • the memory 130 may include a volatile memory 132 or a non-volatile memory 134 .
  • the program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .
  • the input module 150 may receive a command or data to be used by a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 .
  • the input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).
  • the key may include a physical button and a touch-type button.
  • the content creation time may be determined by the input module 150 .
  • the processor 120 may respond to the timing at which the photo taking operation is received An image may be captured through the camera module 180 .
  • the sound output module 155 may output a sound signal to the outside of the electronic device 101 .
  • the sound output module 155 may include, for example, a speaker or a receiver.
  • the speaker can be used for general purposes such as multimedia playback or recording playback.
  • the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.
  • the display module 160 may visually provide information to the outside (eg, a user) of the electronic device 101 .
  • the display module 160 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device.
  • the display module 160 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.
  • the display module 160 may display information about the captured photo and metadata tagged to the photo to the user.
  • the tagged metadata information may include various information as well as location information. For reference, in this specification, tagging of location information may also be referred to as geotagging.
  • the audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input module 150 , or an external electronic device (eg, a sound output module 155 ) connected directly or wirelessly with the electronic device 101 .
  • the electronic device 102) eg, a speaker or headphones
  • the electronic device 102 may output a sound.
  • the sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the sensed state. can do.
  • the sensor module 176 may include one or more sensors that detect sensing data related to a user's activity.
  • the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor (eg, a 3-axis sensor), and a 6-axis sensor (eg, an acceleration sensor and a gyro sensor).
  • the sensed data may include an electrical signal or data value corresponding to a state sensed by each sensor, for example, a gesture value, a gyro value, a barometric pressure value, a magnetic strength value, an acceleration value, a grip strength value, and a proximity distance.
  • At least one of a value eg IR intensity value
  • color value e.g., color value
  • biometric information eg PPG value or electrode sensing value
  • temperature value e.g., temperature value, humidity value, illuminance value, magnetic value, geomagnetic value, pixel value, or touch pressure value
  • temperature value e.g., temperature value, humidity value, illuminance value, magnetic value, geomagnetic value, pixel value, or touch pressure value
  • it may include a combination of two or more.
  • the interface 177 may support one or more specified protocols that may be used by the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ).
  • the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
  • the connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ).
  • the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
  • the haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense.
  • the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module 180 may capture still images and moving images.
  • the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
  • Still images (eg, photos) and moving images captured by the camera module 180 may be stored in the format of an image file.
  • the power management module 188 may manage power supplied to the electronic device 101 .
  • the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery 189 may supply power to at least one component of the electronic device 101 .
  • battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.
  • the communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel.
  • the communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication.
  • the communication module 190 includes a wireless communication module 192 (eg, a cellular communication module, or a short-range wireless communication module), a global navigation satellite system (GNSS) communication module 193 , or a wired communication module 194 .
  • GNSS global navigation satellite system
  • a corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN).
  • a first network 198 eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)
  • a second network 199 eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN).
  • the wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 .
  • subscriber information eg, International Mobile Subscriber Identifier (IMSI)
  • IMSI International Mobile Subscriber Identifier
  • the wireless communication module 192 may establish a wireless connection with another external device to perform communication.
  • the processor 120 detects a wireless signal through the wireless communication module 192, and a network location provider (NLP, The location of the electronic device 101 may be estimated using a network location provider.
  • the processor 120 performs positioning based on a Wi-Fi positioning system (WPS) through the wireless communication module 192, a beacon using a cell based localization and Bluetooth.
  • WPS Wi-Fi positioning system
  • NR new radio access technology
  • NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)).
  • the wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example.
  • the wireless communication module 192 uses various techniques for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing.
  • MIMO massive multiple-input and multiple-output
  • the wireless communication module 192 may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna.
  • the wireless communication module 192 may support various requirements defined in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ).
  • the wireless communication module 192 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: Downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) can be supported.
  • the GNSS module 193 may receive a global navigation satellite system (GNSS) signal from a satellite to estimate location information of the electronic device 101 .
  • GNSS global navigation satellite system
  • the GNSS module 193 may receive a signal from a GNSS satellite while the electronic device 101 is outdoors.
  • the GNSS module 193 may estimate the absolute position (eg, latitude and longitude coordinates) of the electronic device 101 outdoors.
  • the processor 120 provides location information provided from another location provider (eg, an access point (AP) device that has established communication with the wireless communication module 192 ).
  • AP access point
  • the type of GNSS may include, for example, a Global Positioning System (GPS), a Global Navigation Satellite System (GLONASS), Galileo, or Beidou.
  • the antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device).
  • the antenna module 197 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern.
  • the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna.
  • other components eg, a radio frequency integrated circuit (RFIC)
  • RFIC radio frequency integrated circuit
  • the antenna module 197 may form a mmWave antenna module.
  • the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.
  • peripheral devices eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
  • GPIO general purpose input and output
  • SPI serial peripheral interface
  • MIPI mobile industry processor interface
  • the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 .
  • Each of the external electronic devices 102 or 104 may be the same as or different from the electronic device 101 .
  • all or a part of operations executed in the electronic device 101 may be executed in one or more external electronic devices 102 , 104 , or 108 .
  • the electronic device 101 may perform the function or service itself instead of executing the function or service itself.
  • one or more external electronic devices may be requested to perform at least a part of the function or the service.
  • One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 .
  • the electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request.
  • cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used.
  • the electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing.
  • the external electronic device 104 may include an Internet of things (IoT) device.
  • the server 108 may be an intelligent server using machine learning and/or neural networks.
  • the external electronic device 104 or the server 108 may be included in the second network 199 .
  • the electronic device 101 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.
  • FIG. 2 is a block diagram 200 illustrating a program 140 in accordance with various embodiments.
  • the program 140 executes an operating system 142 for controlling one or more resources of the electronic device 101 , middleware 144 , or an application 146 executable in the operating system 142 .
  • Operating system 142 may include, for example, Android TM , iOS TM , Windows TM , Symbian TM , Tizen TM , or Bada TM .
  • At least some of the programs 140 are, for example, preloaded into the electronic device 101 at the time of manufacture, or an external electronic device (eg, the electronic device 102 or 104 ), or a server (eg, the electronic device 102 or 104 ) when used by a user. 108))) or may be updated.
  • the operating system 142 may control management (eg, allocation or retrieval) of one or more system resources (eg, a process, memory, or power) of the electronic device 101 .
  • the operating system 142 may additionally or alternatively include other hardware devices of the electronic device 101 , for example, the input module 150 , the sound output module 155 , the display module 160 , and the audio module 170 . , sensor module 176 , interface 177 , haptic module 179 , camera module 180 , power management module 188 , battery 189 , communication module 190 , subscriber identification module 196 , or It may include one or more driver programs for driving the antenna module 197 .
  • the middleware 144 may provide various functions to the application 146 so that functions or information provided from one or more resources of the electronic device 101 may be used by the application 146 .
  • the middleware 144 includes, for example, an application manager 201 , a window manager 203 , a multimedia manager 205 , a resource manager 207 , a power manager 209 , a database manager 211 , and a package manager 213 . ), connectivity manager 215 , notification manager 217 , location manager 219 , graphic manager 221 , security manager 223 , call manager 225 , voice recognition manager 227 , geo-fence manager 231 , a geotagging manager 233 , an activity recognition manager 235 , or a sensor manager 237 .
  • the application manager 201 may manage the life cycle of the application 146 , for example.
  • the window manager 203 may manage one or more GUI resources used in the screen, for example.
  • the multimedia manager 205 for example, identifies one or more formats required for playback of media files, and encodes or decodes a corresponding media file among the media files using a codec suitable for the selected format. can be done
  • the resource manager 207 may manage the space of the source code of the application 146 or the memory of the memory 130 , for example.
  • the power manager 209 may, for example, manage the capacity, temperature, or power of the battery 189 , and determine or provide related information required for the operation of the electronic device 101 by using the corresponding information. . According to an embodiment, the power manager 209 may interwork with a basic input/output system (BIOS) (not shown) of the electronic device 101 .
  • BIOS basic input/output system
  • the database manager 211 may create, retrieve, or change a database to be used by the application 146 , for example.
  • the package manager 213 may manage installation or update of an application distributed in the form of a package file, for example.
  • the connectivity manager 215 may manage, for example, a wireless connection or a direct connection between the electronic device 101 and an external electronic device.
  • the connectivity manager 215 is a manager that manages a data network communication network and various wireless connections, and includes information on a connection state with a Wi-Fi AP, a connection state with a base station of a cell in which the electronic device 101 is located, and a connection state of a data network. , or manage communication with the server.
  • the processor 120 may obtain information about an external signal of the electronic device 101 through the connectivity manager 215 and determine an activity level of the user using the obtained information.
  • the notification manager 217 may provide, for example, a function for notifying the user of the occurrence of a specified event (eg, an incoming call, a message, or an alarm).
  • the location manager 219 may manage location information of the electronic device 101 , for example.
  • the location manager 219 may obtain the location of the electronic device 101 from a location provider (eg, GNSS or NLP).
  • the location obtained by the location manager 219 may be used in the application layer or may be used in another manager in the middleware layer.
  • the graphic manager 221 may manage, for example, one or more graphic effects to be provided to a user or a user interface related thereto.
  • Security manager 223 may provide, for example, system security or user authentication.
  • the telephony manager 225 may manage, for example, a voice call function or a video call function provided by the electronic device 101 .
  • the voice recognition manager 227 for example, transmits the user's voice data to the server 108, and based at least in part on the voice data, a command corresponding to a function to be performed in the electronic device 101; Alternatively, the converted text data may be received from the server 108 based at least in part on the voice data.
  • the middleware 244 may dynamically delete some existing components or add new components.
  • at least a portion of the middleware 144 may be included as a part of the operating system 142 or implemented as software separate from the operating system 142 .
  • the geo-fence manager 231 determines whether the electronic device 101 has entered (enter/fence-in) the user geo-fence and/or the temporary geo-fence, whether it has exited/fence-out, or stays within the geo-fence ( You can decide whether to stay or dwell.
  • the geo-fence manager 231 may determine the geo-fence to which the electronic device 101 belongs by using the location information obtained by the location manager 219 .
  • the geo-fence manager 231 may prevent frequent state changes by filtering the determination of entry and exit of the geo-fence due to an error of GNSS or Wi-Fi positioning system (WPS), which is a positioning means.
  • WPS Wi-Fi positioning system
  • the geo-fence manager 231 may determine whether to enter, exit, or stay in the geo-fence using a statistical value (eg, an average value) of location information sampled for a predetermined time.
  • the user geo-fence may represent a fixed geo-fence generated by default by the electronic device 101 and/or a geo-fence set by the user.
  • the user geo-fence may include a geo-fence that is set directly by a user or a geo-fence that is allowed to be added by the user (eg, landmarks such as department stores and subway stations).
  • the user geofence may be learned and additionally generated based on a place visited by a user over a threshold frequency and/or a threshold time.
  • the temporary geo-fence may indicate a geo-fence that is temporarily generated based on valid location information.
  • the user geo-fence may be maintained until it is changed and/or deleted by a user operation and/or a geo-fence update of an application.
  • Temporary geofences may be discarded depending on the user's activity and/or the elapsed time between locations, regardless of user manipulation.
  • the geotagging manager 233 applies the current location of the electronic device 101 by using user context information including the location information and activity recognition information obtained from the location manager 219 . can be returned as
  • the activity recognition manager 235 may infer the user's current activity by reading a sensing value related to the user's activity from the sensor manager 237 .
  • the activity recognition manager 235 may infer the user's activity state as one of walking, running, riding a bicycle, using an elliptical machine, swimming, riding a car, riding a train, riding a subway, or not moving.
  • the activity recognition manager 235 may monitor an activity level according to an activity state.
  • the activity recognition manager 235 may identify an activity state related to movement, and infer at least one or a combination of two or more of movement acceleration, movement speed, and movement distance as an activity level for the corresponding activity state. .
  • the activity recognition manager 235 may identify that the user is in a walking state, and infer at least one or a combination of two or more of walking acceleration, walking speed, and walking distance as the activity level. For another example, the activity recognition manager 235, when the user is in a vehicle (eg, car, train, subway, or airplane) in a state, driving acceleration, driving speed, mileage, and flight of the vehicle At least one or a combination of two or more of acceleration, speed of flight, or distance of flight may be inferred.
  • a vehicle eg, car, train, subway, or airplane
  • the sensor manager 237 may read sensing values of sensors accessible from the sensor module 176 .
  • the sensor manager 237 may include a gesture value, a gyro value, a barometric pressure value, a magnetic strength value, an acceleration value, a grip strength value, a proximity distance value, a color value, an IR intensity value, biometric information, a temperature value, a humidity value, At least one or a combination of two or more of an illuminance value, a geomagnetic value, or a touch pressure value may be read from the sensor module 176 .
  • Application 146 includes, for example, home 251 , dialer 253 , SMS/MMS 255 , instant message (IM) 257 , browser 259 , camera 261 , alarm 263 . , contacts 265, voice recognition 267, email 269, calendar 271, media player 273, album 275, watch 277, health 279 (such as exercise or blood sugar) measuring biometric information), or environmental information 281 (eg, measuring atmospheric pressure, humidity, or temperature information).
  • the application 146 is an application that provides services that provide services to a user using location data and a content creation operation (eg, taking a photo) and content creation results by the user, including the camera 261 and the album. (275) may be included.
  • the camera 261 may capture photos and videos as content in response to an operation received from the user (hereinafter, 'user operation').
  • the camera 261 generates metadata (eg, Exchangeable Image File Format (Exif) information) by referring to the location and other additional information acquired at the timing of capturing the photo and video, and generates the photo and video.
  • the album 275 may provide and display an image file generated in response to a user operation. For example, the album 275 may display various metadata including an image of an image file and location information stored in the image file.
  • the application 146 may further include an information exchange application (not shown) capable of supporting information exchange between the electronic device 101 and an external electronic device.
  • the information exchange application may include, for example, a notification relay application configured to transmit specified information (eg, call, message, or alarm) to an external electronic device, or a device management application configured to manage the external electronic device. have.
  • the notification relay application for example, transmits notification information corresponding to a specified event (eg, mail reception) generated in another application (eg, the email application 269 ) of the electronic device 101 to the external electronic device.
  • the notification relay application may receive notification information from the external electronic device and provide it to the user of the electronic device 101 .
  • the device management application is, for example, a power source (eg, turn-on or turn-off) of an external electronic device that communicates with the electronic device 101 or some components thereof (eg, a display module or a camera module of the external electronic device). ) or a function (eg brightness, resolution, or focus).
  • the device management application may additionally or alternatively support installation, deletion, or update of an application operating in an external electronic device.
  • the electronic device may have various types of devices.
  • the electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device.
  • a portable communication device eg, a smart phone
  • a computer device e.g., a smart phone
  • a portable multimedia device e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a wearable device e.g., a smart bracelet
  • a home appliance device e.g., a home appliance
  • first, second, or first or second may simply be used to distinguish an element from other elements in question, and may refer elements to other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively”. When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.
  • module used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit.
  • a module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions.
  • the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101).
  • a storage medium eg, internal memory 136 or external memory 138
  • the processor eg, the processor 120
  • the device eg, the electronic device 101
  • the one or more instructions may include code generated by a compiler or code executable by an interpreter.
  • the device-readable storage medium may be provided in the form of a non-transitory storage medium.
  • 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.
  • a signal eg, electromagnetic wave
  • the method according to various embodiments disclosed in this document may be provided as included in a computer program product.
  • Computer program products may be traded between sellers and buyers as commodities.
  • the computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or via an application store (eg Play Store TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly or online between smartphones (eg: smartphones).
  • a part of the computer program product may be temporarily stored or temporarily created in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.
  • each component eg, a module or a program of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. have.
  • one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added.
  • a plurality of components eg, a module or a program
  • the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. .
  • operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. , or one or more other operations may be added.
  • FIG 3 illustrates a positioning time point and a content generation time point according to various embodiments of the present disclosure.
  • the electronic device may generate contents in response to a user operation after the execution time 320 of the application. Instead of continuously localizing the location from the execution time point 320 , the electronic device may prevent unnecessary power consumption by intermittently driving the communication module (eg, the communication module 190 of FIG. 1 ).
  • the communication module eg, the communication module 190 of FIG. 1
  • the electronic device may obtain the first location information by performing GNSS positioning at a first positioning time 311 before the execution time 320 .
  • the electronic device may verify the validity of the acquired first location information before the application is executed.
  • the electronic device may tag the first location information whose validity has been verified to the first content generated at the first generation time 321 .
  • the electronic device may add a valid location to the metadata of the first content even if there is no positioning or failure during the time period 390 between the execution time 32 and the first generation time 321 .
  • the electronic device may acquire the second location information by already performing GNSS positioning at the second positioning time 312 , which is before the second generation time 322 .
  • the electronic device may verify the validity of the second location information, and tag the verified second location information with respect to the second content.
  • the electronic device may acquire third location information by performing NLP positioning at a third positioning time 313 before the third generation time 323 .
  • the electronic device may verify the validity of the third location information and tag the verified third location information to the third content.
  • the electronic device may obtain fourth location information by performing GNSS positioning at the fourth location time 314 , verify the fourth location information, and then add it to metadata of the fourth content to be generated.
  • Location information may be obtained inaccurately (eg, NLP positioning is inaccurate compared to GNSS positioning), and the electronic device may minimize a location tagging error by tagging the validated location information to the content.
  • the hash value of the changed content may be different from the hash value of the original content when the content is initially created.
  • the electronic device may preserve the hash value of the content by minimizing the omission of location information tagging at the time of generation of each content. Since there is no change in the hash value, duplicate file processing is prevented when the content is backed up and transmitted to the cloud server, so resources required for backup and cloud transmission (e.g., calculation time, amount of power required for calculation, time and power required for transmission) are prevented. ) can be reduced.
  • the electronic device When generating content in response to a user manipulation, the electronic device according to an embodiment includes a GNSS module (eg, the GNSS module 193 of FIG. 1 ) and a wireless communication module (eg, the wireless communication module 192 of FIG. 1 ). ), based on the user's activity inference using the positioning and the sensor module (eg, the sensor module 176 of FIG. 1 ), it is possible to determine whether the geo-fence enters and the effective location.
  • the electronic device may tag the effective location in the metadata of the content and provide the context of the content to the user based on the location tagged in the metadata.
  • the electronic device may minimize power consumption by referring to the user's activity during the operation of generating content in the application and attempting positioning if necessary.
  • the electronic device may prevent omission of metadata related to the location of the content by performing geotagging using the valid location information. Also, the electronic device may tag the content with a more accurate location by verifying the validity of the location information using the temporary geofence and filtering out the inaccurate location. Accordingly, the electronic device can minimize the omission of geotagging in a situation in which multiple contents are generated (eg, a situation in which the user intends to take a picture and repeatedly takes a picture while moving by executing a camera application).
  • an image eg, a photo or a video
  • Content creation includes, for example, voice recording, call recording, screenshot creation, posting (eg, review, blog post, or website reply), and sensing biometric information (eg, blood pressure, blood sugar, body temperature, or electrocardiogram).
  • biometric information eg, blood pressure, blood sugar, body temperature, or electrocardiogram
  • a payment action eg, payment by card, mobile payment, payment by a digital wallet, or payment through a financial transaction
  • FIG. 4 is a flowchart illustrating a method of tagging location information according to various embodiments of the present disclosure
  • the electronic device may execute an application.
  • the application may generate content in response to a user operation and add location information to metadata of the generated content.
  • the application may be, for example, a camera application, but is not limited thereto.
  • the processor of the electronic device may determine the geo-fence into which the electronic device is entering. For example, the electronic device determines whether to enter the geo-fence and whether the electronic device belongs to a user geo-fence or a temporary geo-fence based on a location verified as valid at a previous valid time point (eg, the previous positioning time). can do.
  • the valid time point may indicate a time point at which location information verified to be valid is acquired.
  • the previous valid time point may indicate a time point at which location information verified to be valid before the positioning time point is obtained.
  • the immediately preceding valid time may indicate a valid time closest to the current positioning time among a plurality of previous valid time points.
  • the geo-fence determination operation 490 in FIG. 4 is illustrated as being performed after the operation 410, but is not limited thereto, and may be performed in parallel with other operations shown in FIG.
  • the fence determination operation 490 will be described with reference to FIG. 5 below.
  • the electronic device may monitor the user's activity level based on the sensed data during execution of an application for generating content.
  • one or more sensors of the electronic device may detect sensing data related to a user's activity.
  • the electronic device may infer a user's activity state from the sensed data.
  • the processor of the electronic device may select one of walking, running, riding a bicycle, using an elliptical machine, swimming, riding a car, riding a train, riding a subway, or stopping based on sensing data including an acceleration sensing value and a geomagnetic value. activity status can be determined.
  • the electronic device may calculate at least one or a combination of two or more of an activity distance, an activity velocity, or an activity acceleration as an activity level based on the inferred activity state.
  • the activity acceleration may indicate an acceleration applied to the electronic device according to a user's activity
  • the activity speed may indicate a speed at which the electronic device moves according to the user's activity
  • the activity distance may indicate a distance traveled by the electronic device according to the user's activity.
  • the electronic device may calculate an activity acceleration based on the acceleration sensing value, integrate the activity acceleration to calculate the activity speed, and integrate the activity speed to calculate the activity distance.
  • the activity distance at any point in time may be calculated as the accumulated estimated movement distance during the elapsed time from the previous valid time point (eg, the time point of measuring location information verified to be valid before) to the corresponding time point.
  • the activity distance is mainly described as an example of the activity level, it is not limited thereto.
  • the electronic device may initiate positioning according to the activity level.
  • the electronic device may initiate localization using at least one of a GNSS module and a wireless communication module based on an activity level.
  • the electronic device may attempt positioning when the activity level increases. For example, when the calculated activity level exceeds a threshold level, the electronic device may initiate positioning.
  • the activity level for example, the activity distance is large, the distance movement occurs due to the user's activity, and the electronic device reduces power consumption due to active localization by attempting localization when the distance movement occurs. can do.
  • the electronic device may update effective location information for each geo-fence and tag the effective location information to content.
  • the electronic device verifies the validity of the new location information acquired based on the temporary geo-fence into which the electronic device is entering in response to a case in which new location information is acquired by positioning up to the time of content creation while verifying the validity of the electronic device You can update location information.
  • the electronic device may add the updated valid location information to metadata of the generated content.
  • the addition of the valid location information to the metadata may be referred to as writing or recording the valid location information.
  • the electronic device may tag the new effective location information to the content.
  • the electronic device may tag the previous valid location information.
  • the previously valid location information may indicate location information that was acquired at a previous valid time point and verified as valid.
  • the electronic device Previously valid location information may be tagged in metadata of newly created content. Since positional movement due to the user's movement is not observed, the electronic device may perform geotagging with low power by delaying positioning until the positional movement occurs.
  • the operations performed in FIG. 4 are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations are executed in a different order, are omitted, or one or more other operations are performed according to various embodiments. Actions may be added.
  • FIG. 5 is a flowchart illustrating an operation of determining whether to enter a geo-fence according to various embodiments of the present disclosure
  • the electronic device eg, the electronic device 101 of FIG. 1
  • the electronic device may determine whether the electronic device belongs to a user geo-fence or a temporary geo-fence based on at least one of the previous valid location information and the new location information. For example, if the previous valid location information does not exist and the new location is successful, the electronic device may select a user geo-fence into which the electronic device has entered from among a plurality of user geo-fences based on location information obtained by the new location. can be identified. As another example, when the previous valid location information does not exist and the new location information also fails, the electronic device may wait until another new location location succeeds in operation 593 .
  • the electronic device may determine the geo-fence according to the geo-fence type to which the previous valid location information belongs.
  • the electronic device may determine that the electronic device has entered the temporary geo-fence in operation 595 .
  • the electronic device may determine the geofence based on the location information obtained by the new positioning.
  • the electronic device may determine that the electronic device has entered the corresponding user geo-fence in operation 596 .
  • the user geo-fence to which the previous valid location information belongs and the user geo-fence to which the new location information belongs may be the same or different.
  • the electronic device when the electronic device does not previously belong to a temporary geo-fence (eg, when there is no previous geo-fence or belongs to a user geo-fence), the electronic device, if the newly acquired location information does not belong to the user geo-fence, It may be determined that the device is excluded from a plurality of preset user geofences.
  • the electronic device may determine whether a new accurate positioning has been obtained. For example, the electronic device may determine whether reliability of the newly acquired location information exceeds a threshold reliability. Reliability may indicate the degree to which location information provided by the location provider is reliable, and may be calculated according to signal reception strength and signal quality at each location information acquisition time, independently of the location provider's priority, which will be described later. The electronic device may determine whether to generate a temporary geo-fence by evaluating the reliability of positioning by a high-priority location provider (eg, a GNSS module). However, the calculation of reliability is not limited thereto. When the reliability of the location information is less than or equal to the threshold reliability, the electronic device may wait until accurate positioning is obtained in operation 593 .
  • a threshold reliability e.g, a GNSS module
  • the electronic device may generate a temporary geo-fence in response to a case in which an accurate location that does not belong to the user geo-fence is obtained.
  • the electronic device may generate a temporary geo-fence.
  • the electronic device may determine the newly acquired positioning information as valid location information, and may generate a temporary geofence based on the new valid location information.
  • the electronic device in response to the GNSS module obtaining GNSS location information having a reliability exceeding a threshold reliability while the electronic device is excluded from the plurality of user geofences, the electronic device may be configured to: A location point may be determined as a center point of the temporary geofence.
  • the initial radius of the temporary geo-fence may be set as a default value (eg, 100 m), but is not limited thereto, and may be calculated in proportion to the user's activity level.
  • the operations performed in FIG. 5 are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations are executed in a different order, are omitted, or one or more other operations are performed according to various embodiments. Actions may be added.
  • FIG. 6 is a flowchart illustrating an operation of updating valid location information and a tagging operation while an electronic device enters a temporary geo-fence, according to various embodiments of the present disclosure
  • the electronic device eg, the electronic device 101 of FIG. 1
  • the electronic device that entered the temporary geo-fence at the previous valid time updates the valid location information in operation 640 (eg, operation 440 of FIG. 4 ), and updates the valid location information can be added to the metadata of the content.
  • the electronic device may determine whether the positioning previously initiated in operation 430 has been successful. For example, the electronic device may perform positioning based on a GNSS module and/or positioning based on a wireless communication module. Positioning based on the GNSS module may be performed using one or more signals received from GNSS satellites. Positioning based on the wireless communication module may be performed using a connection with an AP device and a connection with a cell base station. Exemplarily, the electronic device may estimate the location of the electronic device by using the location of one or more AP devices (eg, a Wi-Fi router and a Bluetooth beacon) being accessed at the positioning time and the strength of a received signal from the AP device.
  • AP devices eg, a Wi-Fi router and a Bluetooth beacon
  • the electronic device determines at least one or a combination of two or more of the location of the connected cell base station at the positioning time, the distance between the cell base station and the electronic device, the signal strength received from the cell base station, or triangulation through connections with a plurality of base stations.
  • the location of the electronic device may be estimated using the However, the positioning method is not limited to the above, and various methods may be used.
  • the electronic device may verify valid location information when positioning is successful. For example, the electronic device may determine that the verification is successful when the new location obtained by positioning belongs to the temporary geo-fence. As another example, when the new location does not belong to the temporary geofence, the electronic device may determine that the verification has failed. Details of the verification operation will be described with reference to FIG. 7 below.
  • the electronic device may acquire a plurality of pieces of location information by positioning of a plurality of location providers at a positioning time.
  • the electronic device may select location information to be verified from among a plurality of location information.
  • the electronic device may select the location information to be verified based on the priority of the location provider.
  • the priority of each location provider may be determined according to the degree of reliability of positioning by the corresponding location provider, and the priority of the GNSS may be the highest and the priority of the cell base station may be the lowest.
  • the rank of priority for each location provider may appear in the order of GNSS-based positioning, NLP-based positioning (eg, Wi-Fi-based positioning), and cell base station-based positioning.
  • the priority order of the location provider is not limited as described above, and may vary according to design.
  • the electronic device may select location information obtained by a location provider having the highest priority among location providers that have completed positioning . For example, when the GNSS-based positioning and the cell base station-based positioning are successful, the electronic device may verify the location information obtained from the GNSS module. As another example, if there is a possibility of an error in the location provider who has completed location, the electronic device may exclude location by the location provider from verification. For example, GNSS-based positioning and NLP-based positioning are successful, but the GNSS signal strength may be changed based on an arbitrary time point.
  • a situation in which the GNSS signal strength decreases based on a point in time may be a situation in which the electronic device moves from an outdoor space to an indoor space. Since the GNSS-based positioning indoors is unreliable, the electronic device may exclude the GNSS-based positioning when the GNSS signal strength changes and verify the location information obtained by the NLP-based positioning. GNSS-based positioning obtained before GNSS signal strength changes can be excluded from geotagging.
  • the priority of the GNSS-based positioning may be temporarily set lower than the priority of the NLP-based positioning.
  • the priority of the GNSS-based positioning may be set higher than that of the NLP-based positioning again.
  • the electronic device may individually verify and manage valid location information for each of the plurality of location providers.
  • the electronic device may obtain new location information for each location provider for each positioning, verify whether each new location information belongs to a temporary geofence, and record effective location information for each location provider.
  • the electronic device may distinguish and record positioning results by a plurality of location providers for each valid time point.
  • the electronic device may sequentially trust the previously valid location information by a location provider having a high priority.
  • the electronic device determines the validity of the newly positioned location information by using a temporary geofence according to the previous effective location information based on GNSS. can be verified. In this case, the electronic device may verify only the location information newly located by the location provider having a priority less than or equal to the priority of the location provider who provided the previously valid location information. The electronic device may discard the new location information by the location provider having a priority exceeding that of the location provider that provided the previous valid location information.
  • the electronic device discards the new location information based on GNSS, and compares the new location information based on the remaining NLP and the cell base station to the temporary geofence based on the NLP positioning. can be verified.
  • the electronic device may determine whether verification is successful. When the verification of the new location information fails, the electronic device may discard the new location information. Even if the new location information is discarded, the electronic device may determine whether to update and maintain the temporary geo-fence, which will be described later with reference to FIG. 8 . The electronic device may update the obtained location information with new valid location information in response to a case in which verification of the obtained location information is successful.
  • the electronic device may add the updated valid location information to the metadata of the content in response to a case in which verification of the obtained location information is successful. For example, the electronic device may tag an effective location point (eg, valid latitude and longitude coordinates) of the valid location information to metadata of content (eg, photo).
  • an effective location point eg, valid latitude and longitude coordinates
  • the electronic device geotags the valid location information of the latest valid time. is available for In the present specification, the latest valid time point may indicate a time point at which valid location information is obtained closest to the current positioning time among past time points (eg, previous valid time points).
  • the latest valid location information may indicate valid location information acquired at the latest valid time point.
  • the electronic device when the electronic device acquires effective location information based on GNSS 1 second before the current positioning time and obtains effective location information based on NLP 0.5 seconds before the current positioning time, the electronic device geo Can be used for tagging.
  • the present invention is not limited thereto, and the electronic device may use valid location information by a location provider having the highest priority among valid location information by a plurality of location providers for geotagging.
  • the electronic device may add previously valid location information to metadata of the content. For example, the electronic device may add previously valid location information to the metadata of the content in response to a case where positioning fails until the content creation time. Since there is no new location information due to the positioning failure, the electronic device may skip updating the valid location information.
  • the effective location point of the previous valid location information and the center point of the temporary geofence maintained at the positioning time may be different depending on whether the temporary geo-fence is updated at the previous valid time point. An operation of updating the temporary geo-fence will be described with reference to FIG. 8 .
  • the operations performed in FIG. 6 are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations are executed in a different order, are omitted, or one or more other operations are performed according to various embodiments. Actions may be added.
  • FIG. 7 is a diagram illustrating an operation in which an electronic device verifies new location information based on a temporary geo-fence, according to various embodiments of the present disclosure
  • the processor (eg, the processor 120 of FIG. 1 ) of the electronic device may temporarily store new location information based on a comparison between the new location information and the temporary geofence. In response to the case belonging to the geo-fence, it may be determined that the new location information is valid.
  • the location information may include a positioned location point and an error range area (eg, a circular area having an error radius) based on the location point.
  • an error range area eg, a circular area having an error radius
  • each location information may have an error range centered on the corresponding location point.
  • the error range may indicate a position error that may occur depending on the positioning characteristics of each position provider.
  • the electronic device determines whether the location point of the newly acquired location information is located inside an area corresponding to the temporary geo-fence (hereinafter, 'temporary geo-fence area') or whether the location point is outside the temporary geo-fence area 710 . location can be identified.
  • the temporary geo-fence area 710 may be defined as a circular area having a temporary radius based on the center point 711 of the temporary geo-fence.
  • the new location information belongs to the temporary geo-fence, and when the location point is located outside the temporary geo-fence area 710 , the new location information is excluded from the temporary geo-fence can be considered to have been
  • the electronic device may determine that the new location information belongs to the temporary geo-fence.
  • a critical area eg, half area
  • the new location information is added to the temporary geo-fence. You may decide to belong.
  • the electronic device may exclude location information that does not belong to the temporary geofence from geotagging. Positions outside the temporary geofence may be inaccurate and thus excluded from geotagging. In response to the case that the new location information does not belong to the temporary geofence, the electronic device may discard the new location information.
  • the first location information 791 belongs to the temporary geofence areas 710 and 710 and may be used for geotagging. Since the second location information 792 exists outside the temporary geofence areas 710 and 720 , it may be excluded from geotagging.
  • the radius of the temporary geo-fence may be extended according to the lapse of time and user activity, as will be described with reference to FIG. 9 below.
  • FIG. 8 is a flowchart illustrating an operation in which an electronic device determines whether to maintain and discard a temporary geo-fence, according to various embodiments of the present disclosure
  • the electronic device may determine whether to update, maintain, and discard the temporary geo-fence.
  • the electronic device may compare the priority of the new valid location information and the priority of the central point of the temporary geofence.
  • the priority of each location point may be expressed as a location priority.
  • the electronic device may determine whether to replace the center point of the temporary geo-fence with the effective location information based on a comparison between the updated location priority level of the effective location information and the location priority of the temporary geo-fence.
  • the location priority of the location information may be proportional to the priority of the location provider for measuring the corresponding location, and may be determined in inverse proportion to the time elapsed from the previous valid time (eg, the last valid time) to the current positioning time. For example, when the center point of the temporary geofence and the new effective location information are obtained from the same location provider, the electronic device may determine that the location priority of the new effective location information is high. As another example, the electronic device may compare the location priority of the location information based on the priority of the location provider from the previous valid time until the threshold time elapses.
  • a situation may arise in which new location information is acquired by a first location provider (eg, NLP), and a center point of a temporary geofence is acquired by a second location provider (eg, GNSS).
  • a first location provider eg, NLP
  • a second location provider eg, GNSS
  • the priority of the second location provider is higher than that of the first location provider.
  • the electronic device determines that the position priority of the central point of the temporary geo-fence based on the GNSS is higher than the position priority of the new position information based on the NLP.
  • the electronic device determines that the position priority of the center point of the temporary geo-fence based on the GNSS is lower than the position priority of the new location information based on the NLP. can judge
  • the threshold time may be set differently according to an activity state. For example, if the user is active and/or moving, the threshold time may be set to 10 minutes, and if the user is stationary, the threshold time may be set to a time longer than 10 minutes (eg, 30 minutes).
  • the present invention is not limited thereto, and the location priority of the location information may be calculated as a value that is gradually decreased as time elapses from the immediately preceding effective time increases.
  • the electronic device may update the central point of the temporary geofence to the valid location point of the new valid location information. For example, the electronic device may replace the center point of the temporary geo-fence with a new valid location point in response to a case in which it is determined that the location priority of the new effective location information is higher than the location priority of the center point of the temporary geo-fence.
  • the electronic device may initialize the activity distance accumulation according to the user's activity inference and also update the error range region of the center point of the temporary geo-fence.
  • the electronic device may determine a radius of the temporary geofence. For example, the electronic device may determine the radius of the temporary geofence as a default value. However, the present invention is not limited thereto, and the radius of the temporary geo-fence may be determined by an expected movement distance according to a user's activity.
  • the electronic device may maintain the center point of the temporary geo-fence.
  • the valid location information verified in operation 642 of FIG. 6 has an accuracy lower than the accuracy required by the application, it is determined that the location priority of the valid location information is lower than the location priority of the temporary geo-fence. can In other words, even if it is valid location information used for geotagging in operation 440 , it may not be used for updating the temporary geofence.
  • the electronic device may extend the radius of the temporary geo-fence. For example, the electronic device may calculate the expected movement distance based on the user's activity information, and extend the radius of the temporary geofence based on the estimated movement distance and the elapsed time from the previous valid time to the current positioning time.
  • the electronic device may compare the radius of the temporary geo-fence and the required resolution. For example, the electronic device may determine whether the radius of the temporary geofence exceeds a required resolution.
  • the required resolution is a distance resolution required for geotagging, and may be set corresponding to a target accuracy of geotagging.
  • the required resolution may be set and/or changed by the user.
  • the required resolution may be dynamically changed by a factor affecting geotagging (eg, GNSS signal strength, a type of a connected network, or a wireless signal strength).
  • the electronic device responds to at least one of a case in which the radius calculated for the temporary geofence exceeds a required resolving power and a case where the threshold holding time is exceeded without updating the temporary geofence, Geofences can be discarded. For example, when it is determined that the user has moved excessively by inferring the user's activity, the electronic device may discard the corresponding temporary geo-fence instead of extending the temporary geo-fence indefinitely.
  • the electronic device may have moved out of the temporary geofence, so the temporary geofence is Geofences can be discarded. Accordingly, if the geo-fence is not updated, the timing at which the temporary geo-fence is discarded may come, even if valid location information is continuously obtained as verification of new locations continues to succeed. When the temporary geofence is discarded, the electronic device may also discard valid location information verified to be valid at the time of the corresponding positioning.
  • the electronic device may maintain the temporary geo-fence if the radius calculated for the temporary geo-fence is equal to or less than the required resolution and before the critical holding time elapses from the update of the temporary geo-fence.
  • the operations performed in FIG. 8 are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations are executed in a different order, are omitted, or one or more other operations are performed according to various embodiments. Actions may be added. Determination, extension, and discarding of the temporary geofence radius are described in FIG. 9 below.
  • FIG. 9 is a view for explaining an exemplary criterion for discarding a temporary geo-fence by an electronic device according to various embodiments of the present disclosure.
  • the processor (eg, the processor 120 of FIG. 1 ) of the electronic device determines the radius of the temporary geo-fence 910 at least among the user's activity and the speed limit. It can be calculated based on the estimated moving distance 912 based on one.
  • the expected movement distance 912 may indicate a distance that the user is expected to have moved according to the user's activity after the creation and/or update of the temporary geo-fence 910 .
  • the electronic device may determine the radius of the temporary geo-fence 910 by adding up the expected movement distance 912 and the error range 911 of the temporary geo-fence 910 .
  • the electronic device may determine the radius of the temporary geo-fence 910 as the default radius.
  • the electronic device may calculate the expected movement distance 912 by inferring the user's activity state and integrating the inferred activity speed over the elapsed time.
  • the electronic device responds to at least one of a case in which a base station establishing communication with the electronic device is changed and a case in which a change in signal strength measured by the GNSS module exceeds a threshold strength difference, according to the user's activity
  • the radius of the temporary geo-fence 910 may be calculated based on the time interval from the previous valid time and the previous valid time point to the time location start time and the speed limit set for each activity type by excluding the inferred distance movement.
  • the electronic device may not trust the distance inferred by the activity recognition module. Even when the GNSS signal strength changes, the electronic device may not trust the activity recognition. This is because the GNNS signal strength may change when the user moves from outdoors to indoors.
  • the electronic device may determine whether the GNSS signal strength has changed by monitoring the number of received satellite signals and changes in the average of the received strengths.
  • the electronic device uses a speed limit (eg, expected maximum speed) specified for the identified activity type (912) can be inferred.
  • the speed limit for each activity type may be exemplarily specified as 60 km/h for train boarding and subway boarding activity, and 100 km/h for vehicle boarding activity.
  • the electronic device infers the activity type of the user and calculates the expected movement distance 912 by multiplying the speed limit specified for the inferred activity type by the elapsed time.
  • the processor may add an error range 911 of the effective location information to the expected movement distance 912 inferred based on the activity. By adding, the radius of the temporary geo-fence 910 may be determined.
  • the required resolution distance 921 corresponding to the required resolution region 920 of geotagging may be set.
  • the electronic device may discard the temporary geo-fence 910 .
  • FIG. 10 is a flowchart illustrating an operation of tagging valid location information while an electronic device enters a user geo-fence according to various embodiments of the present disclosure
  • the electronic device eg, the electronic device 101 of FIG. 1
  • the electronic device may indicate geotagging when valid location information belongs to a user geofence.
  • the electronic device may determine whether positioning is successful.
  • the electronic device may skip verification of new location information obtained by positioning while the electronic device enters within one user geo-fence among a plurality of preset user geo-fences.
  • the electronic device may add new location information to the metadata of the content.
  • the electronic device may update the new location information acquired according to the successful positioning to the valid location information.
  • the electronic device may add the central point of the user geo-fence to the metadata of the content in response to a case in which the previous valid location information belongs to the user geo-fence and positioning fails until the content creation time.
  • the user geo-fence is a geo-fence that is manually input by the user or allowed to be added to the electronic device by the user, and may be a geo-fence related to a place (eg, home, work, or specific place) meaningful to the user. Even if the effective location information is updated, the center point of the user geo-fence may be maintained without change. Also, the radius of the user geo-fence may be fixed without being changed even if the effective location information is updated as a radius designated by the user.
  • the operations performed in FIG. 10 are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations are executed in a different order, are omitted, or one or more other operations are performed according to various embodiments. Actions may be added.
  • FIG. 11 is a flowchart illustrating an operation of grouping content by an electronic device according to various embodiments of the present disclosure
  • the electronic device may determine whether the currently stored content belongs to a user geofence stored in the electronic device. For example, the electronic device may identify whether a location point tagged with the content is located within an area corresponding to the user geo-fence (hereinafter, 'user geo-fence area').
  • the electronic device may provide the content by grouping it based on the user geo-fence. For example, when the location of the content tagged in the metadata of the target content belongs to one user geofence among a plurality of user geofences stored in the electronic device, the electronic device groups the target content based on the corresponding user geofence, can be provided to
  • the electronic device personalized to one user may set the user geo-fence differently for each user, and may provide the corresponding user by grouping contents based on the personalized geo-fence. Accordingly, even if content having the same metadata is provided by different devices of different users, they may be grouped differently according to geo-fences of different users.
  • the electronic device may provide each user with a content experience according to a unique and personalized context.
  • the electronic device may generate a group geofence based on the content. For example, when the location of the content tagged in the metadata of the plurality of target contents is excluded from the plurality of user geofences stored in the electronic device, the electronic device may generate a group geofence by using the plurality of target contents .
  • the group geo-fence may represent a geo-fence that is temporarily created for content display. Generation of the group geofence will be described with reference to FIG. 14 below.
  • the electronic device may provide content by grouping it based on the generated group geo-fence. For example, the electronic device may group a plurality of target contents by using the generated group geofence and provide the grouped contents to the user.
  • the operations performed in FIG. 11 are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations are executed in a different order, are omitted, or one or more other operations are performed according to various embodiments. Actions may be added.
  • the electronic device may provide content to the user based on the context of the content (eg, location information tagged in metadata).
  • the first content 1201 , the second content 1202 , and the third content 1203 may belong to a user geo-fence 1210 called “home”.
  • the electronic device may group the first content 1201 , the second content 1202 , and the third content 1203 belonging to the user geo-fence 1210 into a list-type interface 1220 and visualize it.
  • the electronic device may visualize the first content 1201 , the second content 1202 , and the third content 1203 by positioning it in the user geo-fence area 1331 in the map interface 1330 . have.
  • group visualization based on geo-tagging of contents is not limited to the above-mentioned, and various visualization methods may be used.
  • the first content 1201 , the second content 1202 , and the third content 1203 belong to a geo-fence called “home” of the user, but for another user, the first content 1201 ) and the second content 1202 may belong to a geo-fence called “X1”, and the third content 1203 may belong to a geo-fence called “X2”.
  • another user's other device may group the first content 1201 and the second content 1202 as "X1" geofences and group the third content 1203 as "X2" geofences to visualize them. have.
  • the electronic device may temporarily create a group geo-fence using contents that do not belong to the user geo-fence.
  • the electronic device may generate a group geofence for the corresponding contents.
  • the processor of the electronic device may determine the average location of the plurality of target contents as the center point of the group geofence. For example, as shown in Equations 1 and 2 below, the average latitude and average longitude of N contents within the tagging error range may be determined as the center point of the group geofence.
  • image latitude i may represent the latitude of the i-th content
  • image longitude i may represent the longitude of the i-th content
  • N is an integer as the number of contents that do not belong to the user geo-fence existing within the tagging error range
  • i is an integer of 1 or more and N or less.
  • the electronic device may determine the distance from the center point of the group geo-fence to the farthest target content among the plurality of target contents as the radius of the group geo-fence.
  • the electronic device may limit the radius of the group geo-fence within a tagging error range as shown in Equation 3 below.
  • distance i is the distance from the center point of the geofence to the furthest-arranged content
  • the geotagging error tolerance may represent a tagging error range
  • the electronic device may generate a group geo-fence 1410 based on first to fifth contents 1401 , 1402 , 1403 , 1404 , and 1405 .
  • the center point of the group geo-fence 1410 may be determined according to Equations 1 and 2 described above.
  • the electronic device may determine a distance 1411 to the fifth content 1405 that is smaller than the tagging error range 1490 as the radius of the group geofence. Since the sixth content 1406 is disposed far from the center point of the group geo-fence 1410 , the electronic device may exclude the sixth content 1406 from the group geo-fence 1410 .

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  • Engineering & Computer Science (AREA)
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  • Remote Sensing (AREA)
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  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
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  • General Physics & Mathematics (AREA)
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Abstract

Un dispositif électronique selon un mode de réalisation lance une localisation en fonction d'un niveau d'activité d'utilisateur surveillé pendant l'exécution d'une application et, si de nouvelles informations d'emplacement sont acquises jusqu'à un temps de création de contenu, peut effectuer une validation, une mise à jour et un géomarquage sur les nouvelles informations d'emplacement acquises en fonction d'un géorepérage temporaire.
PCT/KR2022/000351 2021-01-20 2022-01-10 Appareil et procédé de marquage d'informations d'emplacement vers des métadonnées de contenu WO2022158768A1 (fr)

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KR20160084112A (ko) * 2015-01-05 2016-07-13 에스케이플래닛 주식회사 지오펜스를 위한 무선통신 기능의 자동 활성화 장치 및 방법, 그리고 이를 포함하는 시스템 및 컴퓨터 프로그램이 기록된 기록매체
KR20160132752A (ko) * 2015-05-11 2016-11-21 삼성전자주식회사 사용자 단말 장치 및 그 제어 방법
KR20170018704A (ko) * 2015-08-10 2017-02-20 삼성전자주식회사 지오펜스 관리 방법 및 그 전자 장치
KR20170099352A (ko) * 2016-02-23 2017-08-31 강릉원주대학교산학협력단 사물 인터넷을 위한 이동형 3차원 지오펜스 서비스 시스템

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Publication number Priority date Publication date Assignee Title
KR101609256B1 (ko) * 2011-06-03 2016-04-05 애플 인크. 지오펜스 이탈 모니터링
KR20160084112A (ko) * 2015-01-05 2016-07-13 에스케이플래닛 주식회사 지오펜스를 위한 무선통신 기능의 자동 활성화 장치 및 방법, 그리고 이를 포함하는 시스템 및 컴퓨터 프로그램이 기록된 기록매체
KR20160132752A (ko) * 2015-05-11 2016-11-21 삼성전자주식회사 사용자 단말 장치 및 그 제어 방법
KR20170018704A (ko) * 2015-08-10 2017-02-20 삼성전자주식회사 지오펜스 관리 방법 및 그 전자 장치
KR20170099352A (ko) * 2016-02-23 2017-08-31 강릉원주대학교산학협력단 사물 인터넷을 위한 이동형 3차원 지오펜스 서비스 시스템

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