KR20150011870A - Electronic Device And Method for Tracking Position Of The Same - Google Patents

Electronic Device And Method for Tracking Position Of The Same Download PDF

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Publication number
KR20150011870A
KR20150011870A KR1020130086659A KR20130086659A KR20150011870A KR 20150011870 A KR20150011870 A KR 20150011870A KR 1020130086659 A KR1020130086659 A KR 1020130086659A KR 20130086659 A KR20130086659 A KR 20130086659A KR 20150011870 A KR20150011870 A KR 20150011870A
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KR
South Korea
Prior art keywords
electronic device
information
walking
communication
estimated
Prior art date
Application number
KR1020130086659A
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Korean (ko)
Inventor
강혁
박정민
정미진
정의창
현은정
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삼성전자주식회사
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Priority to KR1020130086659A priority Critical patent/KR20150011870A/en
Publication of KR20150011870A publication Critical patent/KR20150011870A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/20—Instruments for performing navigational calculations
    • 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0284—Relative positioning
    • 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0294—Trajectory determination or predictive filtering, e.g. target tracking or Kalman filtering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Navigation (AREA)

Abstract

A method for tracking an electronic device position which tracks an electronic device position using walking dead reckoning which calculates a relative position from a start point comprises the following steps of: setting a reference position; obtaining walking dead reckoning information on the electronic device based on the set reference position; receiving walking dead reckoning information on the other electronic device which is generated based on the set reference position; and tracking position information on the other electronic device based on the walking dead reckoning information on the electronic device and the walking dead reckoning information on the other electronic device.

Description

Field of the Invention [0001] The present invention relates to an electronic device,

Field of the Invention [0002] The present invention relates to a position tracking method for an electronic device and an electronic device, and more particularly, to a position estimation method and apparatus using a short-range wireless communication and pedestrian dead reckoning (PDR).

In recent years, demand for location based services (LBS) such as navigation and location tracking is increasing in electronic devices such as mobile devices including smart phones, PDAs (personal digital assistants) and tablet PCs.

Generally, a GPS receiver has been used as a positioning sensor as a GPS (Global Positioning System) receiver has been developed as a location-based service.

However, since the GPS receiver can not fully or partially receive the GPS satellite signals in the room, the tunnel, the underground parking lot, and the urban area, the GPS receiver can not provide continuous position information. There is a problem that location information is not provided.

As a result, a method of positioning by Wi-Fi communication, Bluetooth communication, Zigbee communication, UWB (Ultra Band Wideband) communication and NFC (Near Field Communication, and the like.

Specifically, a positioning method using near-field communication is a method of estimating a position between electronic devices by measuring the strength of a signal between electronic devices including a short-range communication module.

However, the positioning method using the short distance communication is advantageous in that it can confirm the position information between the apparatuses in the room as compared with the GPS method. However, since the coverage area is not wide and the position estimation is inaccurate due to the interference effect there is a problem.

The present invention proposes a location tracking method and apparatus using short-distance wireless communication and walking guided navigation so as to track an accurate position between electronic devices.

According to an embodiment of the present invention, there is provided a method for tracking a position of an electronic device using a walking guided navigation method for calculating a relative position from a starting point, the method comprising: setting a reference position; Obtaining walked navigation information of the electronic device based on the set reference position; Receiving walking guidance navigation information of another electronic device generated based on the set reference position; And tracking the position information of the other electronic device based on the walking predictive navigation information of the electronic device and the walking predictive navigation information of the other electronic device.

An electronic device according to an embodiment of the present invention includes a walking detection unit for obtaining walked navigation information; A wireless communication unit capable of receiving walking-estimated navigation information of another electronic device, establishing a short distance communication with the other electronic device, and receiving wireless signal information; And a controller for tracking location information of the other electronic device based on the information.

The present invention provides a method and an electronic device for accurately tracking a position using a short range wireless communication and a walking guided navigation method.

1 is a block diagram of an electronic device according to an embodiment of the present invention;
FIG. 2 is a signal flow diagram between apparatuses for tracking a position according to an embodiment of the present invention;
3 is a flowchart illustrating a method for tracking a location according to an embodiment of the present invention.
4 to 5 are views showing a screen configuration for providing a location tracking service according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention.

1 is a block diagram illustrating an electronic device 100 in accordance with an embodiment of the present invention.

1, the electronic device 100 may include a wireless communication unit 110, a touch screen 120, a walking detection unit 130, an audio processing unit 140, and a control unit 150.

The wireless communication unit 110 forms a voice communication channel, a data communication channel, a video communication channel, and the like. For this, the wireless communication unit 110 may include a radio frequency transmitter for up-converting and amplifying a frequency of a transmitted signal, and a radio frequency receiver for performing low-noise amplification and down-conversion on the frequency of a received signal. Here, the data communication channel may include a communication channel for video communication, a communication channel for instant messaging service, a communication channel for chatting service, and a communication channel for data transmission and downloading. The wireless communication unit 110 according to an embodiment of the present invention may include a short distance communication. When the electronic device 100 supports a short-range wireless communication function such as Wi-Fi communication, Bluetooth communication, Zigbee communication, UWB (Ultra Band Wideband) communication and NFC The wireless communication unit 110 may include a Wi-Fi communication module, a Bluetooth communication module, a Zigbee communication module, a UWB communication module, and an NFC communication module. The wireless communication unit 110 according to an embodiment of the present invention may receive Pedestrian Dead Reckoning (PDR) information and Received Signal Strength Indication (RSSI) of another electronic device 101 .

The touch screen 120 is an input / output means for simultaneously performing an input function and a display function, and may include a display unit 121 and a touch sensing unit 122. The touch screen 120 can display various screens (e.g., a media content playback screen, a call origination screen, a messenger screen, a game screen, a gallery screen, and the like) according to user device operation through the display unit 121. [ When a touch event of the user is input by the touch sensing unit 122 during the screen display through the display unit 121, the touch screen 120 transmits an input signal corresponding to the touch event to the control unit 150 . Then, the control unit 150 can classify the touch event and control the operation according to the touch event.

The display unit 121 can display (output) information processed by the user device. For example, when the user device is in the call mode, a user interface (UI) associated with the call or a graphical user interface (GUI) can be displayed. Also, the display unit 121 can display a video communication mode, a captured or / and received video or UI, and a GUI. The display unit 121 can support screen display by the horizontal mode, screen display by the vertical mode, and screen phone display according to the change between the horizontal mode and the vertical mode according to the rotation direction (or the set direction) of the user device.

The display unit 121 may be a liquid crystal display (LCD), a thin film transistor liquid crystal display (TFT LCD), a light emitting diode (LED), an organic light emitting diode (OLED) And may include at least one of an active matrix OLED (AMOLED), a flexible display, a bended display, and a 3D display. Some of these displays may be implemented as transparent displays that are transparent or optically transparent for viewing the outside.

The touch sensing unit 122 may be mounted on the display unit 121 and may include a touch event input (e.g., a touch-based long press input, a touch-based short press, based input, a touch-based gesture (e.g., a drag, etc.) input, and the like). The touch sensing unit 122 may detect the coordinates of the touch event when the touch event of the user is detected on the surface of the touch screen 120 and may transmit the detected coordinates to the controller 170. [ The control unit 150 may perform a function corresponding to a region where the touch event is generated by the signal transmitted from the touch sensing unit 122. [

The touch sensing unit 122 may be configured to convert a change in a pressure applied to a specific portion of the display unit 121 or a capacitance generated in a specific portion of the display unit 121 into an electrical input signal. The touch sensing unit 122 may be configured to detect not only the position and area to be touched but also the pressure at the time of touch according to the applied touch method. When there is a touch input to the touch sensing unit 122, the corresponding signal (s) may be transmitted to a touch controller (not shown). The touch controller (not shown) may process the signal (s) and then forward the data to the controller 150. Accordingly, the control unit 150 can know which area of the touch screen 120 is touched or the like.

The gait detecting unit 130 is a pedestrian dead reckoning (PDR) apparatus, and obtains walking guided navigation information. The pedestrian dead reckoning (PDR) information is obtained by assuming a relative position, such as a distance and a direction, from the starting point according to the pedometer and the direction of movement of the user of the electronic device 100 or the other electronic device 101 Information. The gait detecting unit 130 may include at least one of an acceleration sensor, an earth magnetic field sensor, a gyro sensor, and a pressure sensor. The gait detecting unit 130 can detect a moving speed, a moving distance, and a moving direction of a user carrying the electronic device 100 using an acceleration sensor, a geomagnetic sensor, and a gyro sensor. In addition, the gait detecting unit 130 may sense an altitude movement such as an interlayer movement of a user of the electronic device 100 using a pressure sensor.

The audio processing unit 140 may be formed as an acoustic component that transmits and receives audio information and performs encoding and decoding. The audio processing unit 140 may include a codec and an audio amplifier Amp. The audio processing unit 140 is connected to a microphone MIC and a speaker SPK and converts the audio signal input from the microphone MIC into data and transmits the data to the control unit 150. The audio processing unit 140 converts the audio signal input from the control unit 150 into analog Signal and output it through the speaker SPK. The audio processing unit 140 may output various audio signals (for example, an MP3 file, an audio signal upon reproduction of a moving picture file, etc.) generated in the electronic device 100 through a speaker SPK. The audio processing unit 140 according to an embodiment of the present invention can output a warning sound through the speaker SPK when the location tracking object moves away from the range set by the electronic device 100. [

The control unit 150 includes a position tracking unit 151. The control unit 150 receives the walking probing information (PDR) of the electronic device 100 obtained by the walking detecting unit 130 and the walking probing direction (PDR) information of the other electronic device 101 received by the wireless communication unit 110 The location of the other electronic device 101 can be tracked.

The control unit 150 determines whether or not the estimated walking navigation information (PDR) of the electronic device 100 acquired by the walking detection unit 130 and the estimated (PDR) information of another electronic device 101 as well as a received signal strength indicator (RSSI) received by the wireless communication unit 110 and a received signal strength indicator The position of another electronic device 101 can be tracked by using a time difference (ToA) and a time difference of arrival (TDoA).

The position tracing unit 151 calculates the position of the electronic device 101 based on the estimated walking navigation information PDR of the electronic device 100 acquired by the walking sensing unit 130 and the estimated walking information of the electronic device 101 received by the wireless communication unit 110 PDR) is used to calculate the relative position and distance between the electronic device 100 and the other electronic device 101.

At this time, if the electronic device 100 and the other electronic device 101 are in short-range communication, the location tracking unit 151 may use a signal propagation attenuation model based on the received signal strength indicator (RSSI) The relative position of the apparatus 101 can be calculated more accurately. For example, if the change in the received signal strength indicator (RSSI) is not large for a predetermined time, it can be determined that the other electronic device 101 is not in the moving state.

If local communication is established between the electronic device 100 and the other electronic device 101 as well as the received signal strength indicator RSSI, A time of arrival (ToA), an arrival time (ToA), and a time of arrival (ToA) based on the estimated walking navigation information (PDR) of the electronic device (100) It is possible to more accurately calculate the relative position of the other electronic device 101 by using the difference (TDoA, Time Difference of Arrival).

A method of calculating the position of another electronic device 101 using a received signal strength indicator (RSSI), a time of arrival (ToA), and a time difference of arrival (TDoA) You can calculate the location using the survey method or calculate the location using the database for Fingerprint. Here, the electronic device 100 may include a storage unit (not shown) such as a ROM (Read Only Memory) or a RAM (Random Access Memory) in order to store a fingerprint database.

The control unit 150 may estimate the relative position of the electronic device 100 and the other electronic device 101 and may enable the audio processing unit 140 to generate a warning sound when the other electronic device 101 is out of a preset range have.

 And may transmit the location tracking information to the touch screen 120 so that the relative position can be displayed.

In addition, the control unit 150 estimates the relative position of the electronic device 100 and the other electronic device 101

2 is a signal flow diagram of an apparatus for location tracking according to an embodiment of the present invention.

Referring to FIG. 2, the first electronic device 100 sets a reference position for obtaining the PDR information of the first electronic device 100 (step 201). Next, the second electronic device 101 sets a reference position for acquiring the PDR information of the second electronic device 101 (step 203).

Herein, the reference position is a position at which the first electronic device 100 and the second electronic device 101 are located as reference positions for obtaining the PDR information of the first electronic device 101 and the second electronic device 101, The reference position can be set at the same position.

If the reference positions of the first electronic device 100 and the second electronic device 101 are set at different positions, the different positions are transmitted to the respective electronic devices 100 and 101, 2 The relative position of the electronic device 101 can be grasped.

The first electronic device 100 obtains the walking estimated navigation (PDR) information of the first electronic device 100 in step 205. [ Herein, the PDR information may include at least one of a moving distance and a moving direction of the first electronic device 100 from the reference position.

The second electronic device 101 obtains the estimated walking navigation (PDR) information of the second electronic device 101 in step 207. [ Herein, the PDR information may include at least one of a moving distance and a moving direction of the second electronic device 101 from the reference position.

The second electronic device 101 may transmit the walkthrough navigation (PDR) information of the second electronic device 101 to the first electronic device 100 in step 209. [

In step 211, the first electronic device 100 acquires radio signal information. Here, when the first electronic device 100 and the second electronic device 101 are connected by short-range communication, the radio signal information includes a Received Signal Strength Indication (RSSI) Time of Arrival (ToA) And a Time Difference of Arrival (TDoA).

The first electronic device 100 determines in step 213 whether the first electronic device 100 has obtained the estimated walk rope (PDR) information, the received second electronic device 101's estimated walk rope (PDR) And tracks the location of the second electronic device 101 using the radio signal information.

3 is a flowchart illustrating a method of tracking a location according to an embodiment of the present invention.

The electronic device 100 sets a reference position for obtaining the PDR information of the electronic device 100 (Step 301).

Here, the reference position is a reference position for obtaining the PDR information of the electronic device 100 and the other electronic device 101, and the electronic device 100 and the other electronic device 101 are located at the same position The reference position can be set.

It is possible to transmit the different positions to the respective electronic devices 100 and 101 to set the reference positions of the electronic device 100 and the other electronic device 101 at different positions, Can be grasped.

Next, in step 303, the electronic device 100 acquires the walking estimated navigation (PDR) information of the electronic device 100. [ The PDR information of the electronic device 100 may include at least one of a moving distance and a moving direction of the electronic device 100 from the reference position.

In step 305, the electronic device 100 receives the estimated walking navigation (PDR) information of the other electronic device 101. Herein, the estimated walking navigation (PDR) information of the other electronic device 101 may include at least one of the moving distance and the moving direction of the other electronic device 101.

In step 307, the electronic device 100 acquires radio signal information. When short distance communication is established between the electronic device 100 and the other electronic device 101, the radio signal information includes a Received Signal Strength Indication (RSSI), a time of arrival (ToA) (TDoA, Time Difference of Arrival).

In step 309, the electronic device 100 uses the estimated walking route (PDR) information of the acquired electronic device 100, the estimated roving navigation (PDR) information of the other electronic device 101 and the acquired radio signal information Thereby tracking the position of the other electronic device 101.

4 is a diagram illustrating a screen configuration for providing a location tracking service according to an embodiment of the present invention.

4, a coordinate plane 410 indicating the actual positional movement of the electronic device 100 and the other electronic device 101 and a user interface screen 420 indicating the positional movement of the electronic device 100 and the other electronic device 101, The comparison of the configurations is as follows.

The electronic device 100 is capable of displaying a position 401 at which position tracking has started, such as a reference position, on the touch screen 120, a current position 402 of the electronic device 100, a current position 403 of another electronic device 101 Can be displayed. At this time, the electronic device 100 may display a movement locus including the moving distance and the moving direction of the electronic device 100 and the other electronic device 101 on the touch screen 120. [

Thus, even when the communication connection between the electronic device 100 and the other electronic device 101 is released, when the electronic device 100 is moved to the current position 403 of the other electronic device 101, You can trace.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims and their equivalents. Only. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

Claims (14)

A method for tracking a position of an electronic device using a walking guided navigation method for calculating a relative position from a starting point,
Setting a reference position;
Obtaining walked navigation information of the electronic device based on the set reference position;
Receiving walking guidance navigation information of another electronic device generated based on the set reference position; And
And tracking the position information of the other electronic device based on the estimated walking information of the electronic device and the estimated walking information of the other electronic device.
The method according to claim 1,
Obtaining wireless signal information; And
And tracking the position information based on the estimated walking navigation information of the electronic device, the estimated walking navigation information of the other electronic device, and the wireless signal information.
3. The method of claim 2,
The location information
And at least one of relative distance and relative direction of the electronic device and the other electronic device.
3. The method of claim 2,
The operation of tracking the location information of the other electronic device
Wherein the position information is tracked using a signal propagation attenuation model based on the radio signal information.
5. The method of claim 4,
The operation of obtaining the radio signal information
Wherein a short distance communication is established between the electronic device and the other electronic device and a received signal strength indicator (RSSI), an arrival time (ToA), an arrival time difference (TDoA) between the electronic device and the other electronic device based on the short- And acquiring at least one of the position information and the position information.
6. The method of claim 5,
The short-
The method comprising at least one of Wi-Fi communication, Bluetooth communication, Zigbee communication, UWB (Ultraband Wideband) communication and NFC (Near Field Communication) Way.
A walking detecting unit for obtaining walking predictive navigation information;
A wireless communication unit capable of receiving walking-estimated navigation information of another electronic device, forming wireless communication with the other electronic device, and receiving wireless signal information;
And a controller for tracking the position information of the other electronic device based on the estimated walking navigation information of the other electronic device and the obtained walking estimated navigation information.
8. The method of claim 7,
The control unit
And corrects the position information calculated on the basis of the obtained gait estimation information and the gait estimation navigation information of the other electronic device according to the wireless signal information.
9. The method of claim 8,
The gait detecting unit
An acceleration sensor, a geomagnetic sensor, a gyro sensor, and a pressure sensor.
9. The method of claim 8,
The wireless communication unit
A Wi-Fi communication module, a Bluetooth communication module, a Zigbee communication module, a UWB communication module, and an NFC communication module.
9. The method of claim 8,
The location information
And at least one of relative distance and relative orientation of the electronic device and the other electronic device.
9. The method of claim 8,
The control unit
And the position information is tracked using a signal propagation attenuation model based on the radio signal information.
9. The method of claim 8,
The wireless communication unit
(RSSI), a time of arrival (ToA), and a difference of arrival time (TDoA) between the electronic device and the other electronic device based on the short-distance communication when short-distance communication is established between the electronic device and the other electronic device And acquires at least one or more of the at least one electronic device.
14. The method of claim 13,
The control unit
The estimated walking navigation information and the estimated walking navigation information of the received other electronic device using at least one of the received signal strength indicator (RSSI), the arrival time ToA and the arrival time difference (TDoA) And corrects the position information calculated based on the position information.
KR1020130086659A 2013-07-23 2013-07-23 Electronic Device And Method for Tracking Position Of The Same KR20150011870A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105866734A (en) * 2016-06-08 2016-08-17 北京科技大学 Target tracking-positioning system on conveying belt
KR20170087038A (en) * 2016-01-19 2017-07-27 캐논 가부시끼가이샤 Information processing apparatus and method of deciding correction amount in the information processing apparatus
US10382894B2 (en) 2017-07-28 2019-08-13 Electronics And Telecommunications Research Institute Method of measuring inter-device relative coordinates and device using the same
US11877204B2 (en) 2018-09-28 2024-01-16 Samsung Electronics Co., Ltd. Electronic apparatus and method for controlling function on basis of location and direction of object

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170087038A (en) * 2016-01-19 2017-07-27 캐논 가부시끼가이샤 Information processing apparatus and method of deciding correction amount in the information processing apparatus
CN105866734A (en) * 2016-06-08 2016-08-17 北京科技大学 Target tracking-positioning system on conveying belt
US10382894B2 (en) 2017-07-28 2019-08-13 Electronics And Telecommunications Research Institute Method of measuring inter-device relative coordinates and device using the same
US11877204B2 (en) 2018-09-28 2024-01-16 Samsung Electronics Co., Ltd. Electronic apparatus and method for controlling function on basis of location and direction of object

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