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WO2011071277A2 - Système et procédé de synchronisation de signaux vidéo et de capteur - Google Patents

Système et procédé de synchronisation de signaux vidéo et de capteur Download PDF

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Publication number
WO2011071277A2
WO2011071277A2 PCT/KR2010/008624 KR2010008624W WO2011071277A2 WO 2011071277 A2 WO2011071277 A2 WO 2011071277A2 KR 2010008624 W KR2010008624 W KR 2010008624W WO 2011071277 A2 WO2011071277 A2 WO 2011071277A2
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WO
WIPO (PCT)
Prior art keywords
sensor
synchronization
signal
time information
clock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2010/008624
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English (en)
Korean (ko)
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WO2011071277A3 (fr
Inventor
최승환
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RD TEK CO Ltd
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RD TEK CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RD TEK CO Ltd filed Critical RD TEK CO Ltd
Priority to JP2012543019A priority Critical patent/JP2013513328A/ja
Priority to US13/514,029 priority patent/US20120274793A1/en
Priority to CN2010800556582A priority patent/CN102652288B/zh
Publication of WO2011071277A2 publication Critical patent/WO2011071277A2/fr
Publication of WO2011071277A3 publication Critical patent/WO2011071277A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G7/00—Synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof

Definitions

  • the present invention relates to a system and method for synchronizing a video signal and a sensor signal when analyzing a multi-channel video signal and a sensor signal in a wired or wireless environment, and more particularly, to a video signal input from a camera and a sensor corresponding to each video signal.
  • a synchronization clock is built into each sensor module and the camera device, so that the synchronization device transmits a synchronization signal to each device to acquire the synchronization clock after synchronizing the synchronization clock.
  • the acquisition time is attached to one signal and transmitted to the central control unit and the computer device to synchronize the image signal with the sensor signal.
  • the game device or the like is provided with a sensor that senses the surrounding situation, for example, a wind direction or a wind speed, or a sensor that senses tension, tilt, temperature, pressure, and the like.
  • An object of the present invention for solving the above-described problems is that a synchronization clock is built into each sensor module and a camera device to synchronize a video signal input from a camera and a sensor signal corresponding to each video signal. After synchronizing the clock for synchronization by transmitting the synchronization signal to each device from the device, the acquisition time is added to the signals acquired from each sensor module and camera device and transmitted to the central control device and the computer device to transmit the image signal and the sensor signal.
  • System and method for synchronizing image signals and sensor signals, camera apparatus, synchronizing apparatus and methods for synchronizing video signals and sensor signals thereof, computer apparatus and methods for synchronizing image signals and sensor signals thereof In providing.
  • the first synchronization clock has a built-in, photographing a subject to obtain an image signal, the first image signal to the obtained image signal; A camera device for adding and outputting acquisition time information by a synchronization clock; A sensor device having a built-in second synchronization clock, generating a sensor signal corresponding to the video signal according to a sensing operation, and outputting the acquired sensor signal by adding acquisition time information of the second synchronization clock.
  • a central control device which receives the sensor signal to which the acquisition time information is added from the sensor device and transmits the sensor signal to a computer device;
  • a synchronization device having a built-in reference clock and simultaneously transmitting a reference time for synchronization of the first synchronization clock and the second synchronization clock to the camera device and the sensor device at a predetermined interval; And receiving the sensor signal to which the acquisition time information is added from the central controller, and receiving the image signal to which the acquisition time information is added from the camera device, confirming the acquisition time information for each signal, and matching each signal to the same.
  • a computer device reconstructing the time zone to synchronize the image signal with the sensor signal.
  • the sensor device synchronizes the second synchronization clock based on the reference time received from the synchronization device, and then acquires the acquisition time by the second synchronization clock to the sensor signal generated according to the sensing operation.
  • the information is added and transmitted to the central controller.
  • the sensor device When the sensor device receives the time calibration command, the sensor device performs calibration based on the time information, synchronizes with a clock received from the synchronization device at a second clock, and sends a calibration completion command to the synchronization device. send.
  • the communication unit for communicating with the camera device, the sensor device, the central control device and a computer device;
  • a frequency generator for generating a frequency signal to transmit reference time information for synchronization to the camera device, sensor device, central control device and computer device;
  • a synchronization clock unit generating the generated frequency signal as a clock signal;
  • a reference time module unit generating the generated clock signal as the reference time information;
  • a real time module unit providing a real time clock (RTC) to the reference time module unit;
  • RTC real time clock
  • control unit obtains the current time information from the sensor device, obtains the current time information, compares the acquired current time information with the reference time information, and checks an error range. To the sensor device.
  • a / D conversion unit for converting the analog signal input from the camera device, the sensor device, the central control device and the computer device into a digital signal;
  • An output unit for outputting the digital signal;
  • a display unit for displaying the generation operation of the reference time information, the transmission time related to the current time information and the time correction command, and the like.
  • the sensor device for achieving the above object, the sensor for generating a sensor signal for sensing the tilt, tension, weight, etc .;
  • a signal converter converting the sensor signal in an analog form into sensor data in a digital form;
  • Communication unit for transmitting the sensor data to the synchronization device and the central control unit;
  • a synchronization clock unit for synchronizing with a reference time provided by the synchronization device;
  • a memory unit for storing the sensor data;
  • a control unit for controlling the sensor data to be transmitted to the central control unit, receiving and synchronizing the reference time from the synchronization unit, and transmitting the measurement time information obtained from the sensor data together with the sensor data to the central control unit.
  • a frequency generator for generating a frequency signal and providing the frequency signal to the controller;
  • a real time module unit providing a real time clock to the controller.
  • the camera device for achieving the above object, the photographing unit for photographing the subject to obtain an image signal; A communication unit for transmitting the video signal to a computer device or a central control device and communicating with a synchronization device; And a synchronization clock unit configured to synchronize with a reference time received from the synchronization device and to provide a time for acquiring the video signal.
  • the method for synchronizing the image signal and the sensor signal for achieving the above object, the synchronization of the image signal and the sensor signal of a system including a camera device, a sensor device, a central control device, a synchronization device and a computer device
  • a method comprising: (a) the synchronization device transmitting synchronization time information to the camera device and the sensor device; (b) synchronizing the built-in synchronization clock with the camera device and the sensor device based on the synchronization time information; (c) acquiring image signals and sensor signals by the camera apparatus and the sensor apparatus, and adding acquisition time information to the central control apparatus or the computer apparatus; And (d) the computer apparatus performing synchronization of the image signal and the sensor signal based on the acquisition time information.
  • the method for synchronizing the image signal and the sensor signal of the synchronization device for achieving the above object, the wired or wireless communication with a device including a camera device, a sensor device, a central control device and a computer device
  • a method of synchronizing an image signal and a sensor signal of a synchronization device comprising: (a) requesting current time information from the device to receive current time information; (b) obtaining error information by comparing the current time information with reference time information; (c) generating time information for correcting the error information and transmitting the time information and a time calibration command to the device; And (d) receiving a synchronization completion command from the device informing that the synchronization is completed by time calibration according to the time information.
  • the present invention it is possible to secure the synchronization of the image signal and the sensor signal collected according to the surrounding environment.
  • an improved service may be provided to a user through synchronization of a multi-channel, high-speed video signal and a sensor signal corresponding thereto.
  • the synchronization of the two signals can be easily implemented, and accordingly, the image signal and the sensor signal can be analyzed accurately and conveniently.
  • FIG. 1 is a configuration diagram schematically showing a configuration of a synchronization system of an image signal and a sensor signal according to an embodiment of the present invention.
  • FIG. 2 is a configuration diagram schematically showing an internal configuration of a synchronization device according to an embodiment of the present invention.
  • FIG. 3 is a configuration diagram schematically showing an internal configuration of a sensor device according to an embodiment of the present invention.
  • FIG. 4 is a configuration diagram schematically showing an internal configuration of a camera apparatus according to an embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating a synchronization method of an image signal and a sensor signal according to an exemplary embodiment of the present invention.
  • FIG. 6 is a flowchart illustrating a method of synchronizing an image signal and a sensor signal of a synchronization device according to an embodiment of the present invention.
  • FIG. 8 is a flowchart illustrating a method of synchronizing an image signal and a sensor signal of a computer device according to an embodiment of the present invention.
  • FIG. 1 is a configuration diagram schematically showing a configuration of a synchronization system of an image signal and a sensor signal according to an embodiment of the present invention.
  • the camera device 110 includes a first clock for synchronizing, acquires an image signal by capturing a subject, and adds acquisition time information of the first synchronizing clock to the computer device 150. Send output.
  • the synchronization device 120 has a built-in reference clock, and the camera device 110 and the sensor device at regular intervals of a reference time for synchronization between the camera device 110, the sensor devices 130 to 134, and the central controller 140. 130 to 134 and the central control unit 140 at the same time.
  • the plurality of sensor devices 130 to 134 have a built-in second synchronization clock, and generate a sensor signal corresponding to an image signal according to a sensing operation, and acquire time information by the second synchronization clock on the generated sensor signal. Add and transmit the output to the central control unit 140.
  • the plurality of sensor devices 130 to 134 may include, for example, an archery analyzer that senses the inclination and tension of an arrow, a foot movement analyzer that senses the user's foot movement back and forth, and the left and right, and the wind direction of the surroundings. Or a climate analyzer that senses wind speed.
  • the sensor signal in the case of the archery analyzer, the sensor signal may be a tension or inclination, and in the case of the foot movement analyzer, the sensor signal may be a front, rear, left, right, etc. Can be.
  • temperature, pressure, etc. can be used as the sensor signal.
  • the central controller 140 receives the sensor signal to which the acquisition time information is added from the sensor devices 130 to 134 and transmits the sensor signal to the computer device 150.
  • the computer device 150 receives the sensor signal to which the acquisition time information is added from the central controller 140, and receives the image signal to which the acquisition time information is added from the camera device 110 to obtain the acquisition time information for each signal. Check and reconstruct each signal in the same time zone to synchronize the video signal with the sensor signal.
  • the computer device may be a PC in the form of a desktop, or a PC in the form of a notebook.
  • the camera device 110 synchronizes the first synchronization clock based on the reference time received from the synchronization device 120, and then acquires acquisition time information by the first synchronization clock to the image signal obtained by photographing.
  • the computer device 150 In addition to the computer device 150.
  • the sensor devices 130 to 134 synchronize the second synchronization clock based on the reference time received from the synchronization device 120, and then, by the second synchronization clock, the sensor signals generated according to the sensing operation.
  • the acquisition time information is added and transmitted to the central control unit 140.
  • the sensor devices 130 to 134 correct the reference time received from the synchronization device 120 with the time of the second synchronization clock by an error, and obtain the acquisition time information in the sensor signal based on the corrected time. In addition, it transmits to the central control unit 140.
  • the camera device 110 and the sensor devices 130 to 134 obtain a time error by comparing the reference time received from the synchronization device 120 with the time of the first synchronization clock and the time of the second synchronization clock.
  • the obtained time error is transmitted to the computer device 150, and the computer device 150 corrects the time signal with respect to the video signal and the sensor signal by the time error.
  • the synchronization device 120 obtains the current time information from the sensor devices 130 to 134, obtains the current time information, compares the obtained current time information with the reference time information, and checks the error range.
  • the time calibration command is transmitted to the sensor devices 130 to 134.
  • the sensor devices 130 to 134 When receiving the time calibration command, the sensor devices 130 to 134 perform calibration based on the received time information, perform synchronization with the clock received from the synchronization device 120 at the second clock, and synchronize ( Calibration) complete command is sent to the synchronization device 120.
  • the communication unit 210 communicates with the camera device 110, the sensor devices 130 to 134, the central controller 140, and the computer device 150.
  • the frequency generator 220 generates a frequency signal to transmit reference time information for synchronization to the camera device 110, the sensor devices 130 to 134, the central controller 140, and the computer device 150.
  • the synchronization clock unit 230 generates a frequency signal generated by the frequency generator 220 as a clock signal.
  • the reference time module unit 240 generates the generated clock signal as reference time information.
  • the real time clock unit 250 provides a real time clock (RTC) to the reference time module unit 240.
  • RTC real time clock
  • the controller 260 requests the sensor devices 130 to 134 to obtain current time information, compares the acquired current time information with reference time information, and checks an error range.
  • the calibration command is transmitted to the sensor devices 130 to 134.
  • the output unit 280 outputs a digital signal to the outside through a port.
  • the display unit 290 displays a generation operation of reference time information, a transmission operation related to current time information, and a time calibration command.
  • FIG. 3 is a configuration diagram schematically showing an internal configuration of a sensor device according to an embodiment of the present invention.
  • the communicator 310 transmits sensor data to the synchronization device 120 and the central controller 140.
  • the sensor 320 generates a sensor signal that senses tilt, tension, weight, and the like.
  • the signal converter 330 converts an analog sensor signal into digital sensor data.
  • the synchronization clock unit 340 synchronizes with the reference time provided by the synchronization device 120.
  • the memory unit 350 stores sensor data.
  • the controller 360 controls the sensor data to be transmitted to the central controller 140, receives and synchronizes the reference time from the synchronization device 120, and then collects the measurement time information obtained from the sensor data together with the sensor data. Control to transmit to 140.
  • the camera apparatus 110 includes a photographing unit 410, a synchronous clock unit 420, and a communication unit 430.
  • FIG. 5 is a flowchart illustrating a synchronization method of an image signal and a sensor signal according to an exemplary embodiment of the present invention.
  • the video signal is generally large and is transmitted directly to the computer device 150 with the acquisition time information added without passing through the central control unit 140.
  • the computer device 150 calculates a time error by comparing the acquisition time information of the camera device 110 and the sensor devices 130 to 134, and corrects the video signal and the sensor signal by the time error on the time axis. And sensor signal are synchronized.
  • the synchronization device 120 requests current time information from a device including the camera device 110, the sensor devices 130 to 134, the central controller 140, and the like as shown in FIG. 7 to present the current time information. It receives (S604).
  • 7 is a diagram illustrating a synchronization procedure and a timing diagram according to an embodiment of the present invention.
  • ⁇ T1 represents an error time between the synchronization device 120 and the sensor devices 130 to 134 before calibration
  • ⁇ t1 represents a time information transmission delay time by serial communication
  • ⁇ t2 represents a sensor device 130.
  • ⁇ t3 indicates a time at which the current time information is transmitted
  • ⁇ t3 indicates an error time in the synchronization device 120 and indicates a setting time and a command transmission delay time
  • ⁇ t4 indicates time information from the synchronization device 120. Indicates the time to receive and wait for calibration.
  • the synchronization device 120 generates calibration time information for correcting the error information (S608).
  • the synchronization device 120 transmits the generated calibration time information and the time calibration command to a device including the camera device 110, the sensor devices 130 ⁇ 134, the central controller 140, and the like (S610).
  • devices including the camera device 110, the sensor devices 130 to 134, the central control device 140, and the like are built-in a synchronous clock based on time information and a time calibration command received from the synchronization device 120. To synchronize with time information, and transmits a synchronization completion command indicating that the synchronization is completed to the synchronization device 120.
  • the synchronization device 120 receives a synchronization completion command indicating that the synchronization is completed by time calibration according to the calibration time information from a device including the camera device 110, the sensor devices 130 to 134, the central control device 140, and the like. It receives (S612).
  • FIG. 8 is a flowchart illustrating a method of synchronizing an image signal and a sensor signal of a computer device according to an embodiment of the present invention.
  • the computer device 150 receives reference time information from the synchronization device 120 and synchronizes a built-in synchronization clock (S810).
  • the computer device 150 receives an image signal including acquisition time information from the camera device 110, and is acquired by the sensor devices 130 to 134 from the central controller 140 to include the acquisition time information.
  • the sensor signal is received (S820).
  • the computer device 150 calculates a time error by comparing the acquisition time information of the camera device 110 and the sensor devices 130 to 134, and corrects the video signal and the sensor signal by the time error on the time axis. And sensor signal are synchronized.
  • the computer device 150 may be synchronized even while acquiring the image signal and the sensor signal from the camera device 110 and the sensor device (130 ⁇ 134), so the verification after the acquisition is completed. Therefore, the central controller 140 calculates the time error of each of the camera device 110 and the sensor device (130 ⁇ 134) and transfers it to the computer device 150, the time error received by the computer device 150 As long as the information is corrected on the time base. Of course, without calculating the time error in the central controller 140, the computer device 150 may calculate the time error directly and accordingly correct the image signal and the sensor signal by the time error.
  • a synchronization clock is built into each sensor module and the camera device, and the synchronization device After synchronizing the clock for synchronization by transmitting the synchronization signal to the device, the acquisition time is attached to the signals acquired from each sensor module and camera device and transmitted to the central control device and the computer device to synchronize the image signal with the sensor signal.
  • a system and method for synchronizing a video signal and a sensor signal, a method for synchronizing a camera device, a synchronizing device and its video signal and a sensor signal, and a method for synchronizing a computer device and its video signal and a sensor signal can be realized.
  • the present invention can be applied to a system and a service that must simultaneously provide an image signal obtained from a camera device and a sensor signal obtained from a sensor device with a screen and sound.
  • the present invention may be applied to a device for generating an image signal and a sensor signal and transmitting the same through wireless communication and wired communication.
  • the present invention can be applied to an apparatus or system for analyzing a multi-channel video signal and a sensor signal.
  • Wired wireless, camera, video signal, sensor, sensor signal, synchronization, error

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Synchronizing For Television (AREA)
  • Electric Clocks (AREA)

Abstract

La présente invention porte sur un système et sur un procédé de synchronisation de signaux vidéo entrés à partir d'une caméra avec des signaux de capteur correspondants qui consiste : à transmettre un signal de synchronisation à partir d'un dispositif de synchronisation à un module de capteur comprenant une horloge de synchronisation et un dispositif de caméra comprenant une horloge de synchronisation afin de synchroniser les horloges de synchronisation, à ajouter des instants d'acquisition aux signaux vidéo et de capteur acquis par le module de capteur et le dispositif de caméra, et à transmettre des signaux vidéo et de capteur à un dispositif central de commande et à un dispositif informatique afin de synchroniser les signaux vidéo et de capteur. Selon la présente invention, le système pour la synchronisation de signaux vidéo et de capteur comprend : un dispositif de caméra comprenant une première horloge de synchronisation et configuré pour générer un signal vidéo par photographie d'un objet, ajouter des informations d'instant d'acquisition de la première horloge de synchronisation au signal vidéo et pour délivrer le signal vidéo, un dispositif de capteur comprenant une seconde horloge de synchronisation et configuré pour générer un signal de capteur correspondant au signal vidéo comme résultat d'une opération de détection, pour ajouter des informations d'instant d'acquisition de la seconde horloge de synchronisation au signal de capteur et délivrer le signal de capteur, un dispositif central de commande configuré pour recevoir le signal de capteur, comprenant les informations d'instant d'acquisition, à partir du dispositif de capteur, et pour commander le signal de capteur à délivrer à un dispositif informatique, un dispositif de synchronisation comprenant une horloge de référence destiné à délivrer simultanément un instant de référence au dispositif de caméra et au dispositif de capteur à des intervalles réguliers afin de synchroniser les première et seconde horloges de synchronisation, ledit dispositif informatique étant configuré pour recevoir le signal de capteur comprenant les informations d'instant d'acquisition à partir du dispositif de commande central et le signal vidéo comprenant le délai d'acquisition à partir du dispositif de caméra, vérifiant les informations d'instant d'acquisition respectives des signaux de capteur et vidéo, et synchronisant les signaux de capteur et vidéo par mise en place des signaux dans la même période de temps. Selon la présente invention, on peut synchroniser les signaux vidéo et de capteur en fonction de l'environnement ambiant. En outre, on peut synchroniser les signaux vidéo haut débit multicanaux avec les signaux de capteur correspondants afin de fournir un service amélioré aux utilisateurs. En outre, on peut facilement synchroniser indépendamment les signaux vidéo et de capteur acquis, en fonction de ce que des moyens de communication sans fil ou câblés sont ou non utilisés, et on peut ainsi analyser facilement et avec précision les signaux vidéo et de capteur.
PCT/KR2010/008624 2009-12-08 2010-12-03 Système et procédé de synchronisation de signaux vidéo et de capteur Ceased WO2011071277A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012543019A JP2013513328A (ja) 2009-12-08 2010-12-03 映像信号とセンサー信号の同期化システム及び方法
US13/514,029 US20120274793A1 (en) 2009-12-08 2010-12-03 System and method for synchronizing video and sensor signals
CN2010800556582A CN102652288B (zh) 2009-12-08 2010-12-03 视频信号和传感器信号的同步化系统及方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0120946 2009-12-08
KR1020090120946A KR101121153B1 (ko) 2009-12-08 2009-12-08 영상신호와 센서신호의 동기화 시스템 및 방법

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WO2011071277A2 true WO2011071277A2 (fr) 2011-06-16
WO2011071277A3 WO2011071277A3 (fr) 2011-10-20

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US (1) US20120274793A1 (fr)
JP (1) JP2013513328A (fr)
KR (1) KR101121153B1 (fr)
CN (1) CN102652288B (fr)
WO (1) WO2011071277A2 (fr)

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CN102652288B (zh) 2013-11-27
KR20110064377A (ko) 2011-06-15
JP2013513328A (ja) 2013-04-18
US20120274793A1 (en) 2012-11-01
CN102652288A (zh) 2012-08-29
WO2011071277A3 (fr) 2011-10-20

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