WO2021193342A1 - カメラシステム、通信方法、信号処理装置及びカメラ - Google Patents

カメラシステム、通信方法、信号処理装置及びカメラ Download PDF

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Publication number
WO2021193342A1
WO2021193342A1 PCT/JP2021/011046 JP2021011046W WO2021193342A1 WO 2021193342 A1 WO2021193342 A1 WO 2021193342A1 JP 2021011046 W JP2021011046 W JP 2021011046W WO 2021193342 A1 WO2021193342 A1 WO 2021193342A1
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WIPO (PCT)
Prior art keywords
signal
camera
signal processing
wireless communication
cam
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
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PCT/JP2021/011046
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English (en)
French (fr)
Japanese (ja)
Inventor
誠之 梅島
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Sony Group Corp
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Sony Group Corp
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Publication date
Application filed by Sony Group Corp filed Critical Sony Group Corp
Priority to EP21775020.7A priority Critical patent/EP4109870A4/en
Priority to JP2022510034A priority patent/JP7574844B2/ja
Priority to CN202180022570.9A priority patent/CN115299037B/zh
Priority to US17/910,232 priority patent/US12598376B2/en
Publication of WO2021193342A1 publication Critical patent/WO2021193342A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet
    • H04N23/662—Transmitting camera control signals through networks, e.g. control via the Internet by using camera arrangements where one camera controls another camera to affect the control of camera image capture, e.g. placing the camera in a desirable condition to capture a desired image
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet

Definitions

  • This disclosure relates to camera systems, communication methods, signal processing devices and cameras.
  • Camera systems are used for various purposes such as broadcasting.
  • a camera CAM
  • a signal processing device such as a camera control unit (CCU) are wiredly connected by a camera cable or the like.
  • the camera and the signal processing device are wiredly connected by a camera cable or the like, another person other than the cameraman who performs the processing related to the cable is required to prevent the camera cable from being entangled. Is required. Further, since the camera and the signal processing device are connected by a wire, there are restrictions on the handling of the camera and the setting location depending on the length of the cable or the like. As described above, the conventional camera system has many restrictions such as the installation of the camera and has many restrictions for the user who uses the system, and is not a highly convenient system. Therefore, it is desired to improve the degree of freedom in installing the camera.
  • this disclosure proposes a camera system, a communication method, a signal processing device, and a camera that can improve the degree of freedom in camera installation.
  • one form of the camera system according to the present disclosure has a wireless communication function, a camera that captures an image, and a wireless communication function, and signals processing related to an image captured by the camera.
  • the camera and the signal processing device are wirelessly connected to each other.
  • First Embodiment 1-1 Outline of communication processing according to the first embodiment of the present disclosure 1-1-1. Background and effects 1-1-2. First wireless communication and second wireless communication 1-1-2-1. 5th Generation Mobile Communication System (5G) Related 1-1-3. 1st signal and 2nd signal 1-2. Configuration of camera system according to the first embodiment 1-2-1. Configuration of Signal Processing Device According to First Embodiment 1-2-2. Configuration of the camera according to the first embodiment 1-3. Communication processing procedure according to the first embodiment 1-4.
  • FIG. 1 is a diagram showing an example of communication processing according to the first embodiment of the present disclosure. Further, FIG. 1 is a diagram showing a configuration example of the camera system 1 according to the first embodiment of the present disclosure. The communication process according to the first embodiment of the present disclosure is realized by the camera system 1 shown in FIG.
  • the camera system 1 is a system including a signal processing device 100 (hereinafter, also referred to as “CCU100”) and a camera 200 (hereinafter, also referred to as “CAM200”). As shown in FIG. 1, the camera system 1 includes a CCU 100 and a plurality of CAM 200s. When CAM200-1 to CAM200-3 and the like are described without particular distinction, they are described as CAM200.
  • the CAM 200 shown in FIG. 1 shows an example of a system camera used for video shooting for broadcasting such as a television, but the details of the CAM 200 will be described later.
  • the camera system 1 shown in FIG. 1 shows a configuration in which a plurality of CAM 200s are connected to the CCU 100, that is, a configuration in which the camera and the CCU are connected at N: 1, and the CCU 100 is an M-CCU (Multi connect CCU). ..
  • the camera system 1 may include four or more CAM200.
  • the number of cameras (CAM200) included in the camera system 1 is not limited to the three shown in FIG. 1, and may be determined by, for example, the number of connectable cameras according to the radio band or the like.
  • Each CAM 200 takes an image. Each CAM 200 transmits an captured image (hereinafter, also referred to as “main line image”) to the CCU 100.
  • the CCU 100 shown in FIG. 1 is a so-called camera control unit (Camera Control Unit), but the details of the CCU 100 will be described later.
  • Each CAM 200 transmits a signal (hereinafter, also referred to as "first signal") of the captured image (main line image) to the CCU 100 by the first wireless communication.
  • first signal main line signal
  • the first signal (main line signal) is a video signal for recording.
  • each CAM 200 and CCU 100 use a signal other than the first signal (hereinafter, also referred to as "second signal”) by wireless communication different from the first wireless communication (hereinafter, also referred to as “second wireless communication”). connect.
  • the second signal referred to here is a signal different from the first signal, which is a signal of the main line image, and is a signal used for controlling the CAM 200, for example, but the details will be described later.
  • each CAM 200 and CCU 100 transmit and receive a signal (second signal) other than the signal of the main line image by the second wireless communication.
  • Each CAM 200 and CCU 100 transmit and receive a second signal by the second wireless communication shown by the alternate long and short dash line in FIG.
  • the second signal is communicated between the CAMs 200 by the second wireless communication.
  • the camera system 1 is a system in which the CAMs 200 are wirelessly connected to each other to form a mesh network.
  • each of the CAM 200 transmits and receives a second signal to and from the other CAM 200 by the second wireless communication indicated by the alternate long and short dash line.
  • the first wireless communication for communicating mainline video is wideband, high reliability, and low delay wireless communication.
  • the first radio communication is at least broader than the second radio communication, more reliable than the second radio communication, or less delayed than the second radio communication. It is a communication that satisfies one of them.
  • the first wireless communication is wireless communication (5G communication) by a fifth generation mobile communication system (hereinafter, also referred to as "5G")
  • the second wireless communication is a fourth generation mobile communication.
  • It is wireless communication (4G communication) by a system (hereinafter, also referred to as "4G").
  • 4G communication wireless communication
  • the main line image is communicated by the first wireless communication which is faster and has lower delay than the second wireless communication.
  • the first wireless communication has a wider band than the second wireless communication, is more reliable than the second wireless communication, or has a lower delay than the second wireless communication. Any communication may be used as long as it satisfies at least one of the above points, and details of this point will be described later.
  • the communication between the CCU 100 and the CAM 200 is set to wireless communication, and the first wireless communication for communicating the main line image and the second wireless communication for communicating other information are used. Communicate.
  • the camera system 1 by connecting the CCU 100 and the CAM 200 by wireless communication, the problem due to the priority connection as described above can be solved, and the degree of freedom in installing the camera is improved. As a result, the camera system 1 can improve the convenience of the user who uses the camera system 1. Further, in the camera system 1, by making the CCU 100 and the CAM 200 wireless, one CCU 100 can control a plurality of CAM 200s. Further, in the camera system 1, the camera and the CCU are wirelessly connected, the main line image is communicated by the first wireless communication, and the other information is communicated by the second wireless communication. In this way, in the camera system 1, the main line video system (first wireless communication) and the wireless system other than the main line video such as synchronization / command (second wireless communication) are separated to prevent communication between the two. It can be suppressed.
  • a more stable connection can be secured by adopting a mesh network in which the CAMs 200 are also wirelessly connected to each other in the second wireless communication configuration.
  • the wireless system (second wireless communication) other than the main line video does not require as much bandwidth as the main line video system (first wireless communication)
  • the camera system 1 requires the first wireless communication for the second wireless communication. It is possible to use a band that is narrower than wireless communication.
  • the first wireless communication is any communication as long as it satisfies at least one of wideband, high reliability, and low delay as compared with the second wireless communication. You may.
  • the first wireless communication may be any communication as long as it has a wider band than the second wireless communication.
  • the first wireless communication and the second wireless communication are the same communication method, and the first wireless communication may have a wider band than the second wireless communication.
  • the first wireless communication and the second wireless communication may be 4G communication.
  • the first wireless communication and the second wireless communication may be 5G communication.
  • the camera system 1 may use a technique related to network slicing that virtually slices (divides) the network.
  • the camera system 1 may use a technique related to network slicing to divide the information to be transmitted according to the band.
  • the camera system 1 may perform communication by setting the first wireless communication to a wider band than the second wireless communication by using a technique related to network slicing.
  • the first signal transmitted / received in the first wireless communication is the main line image.
  • the second signal transmitted / received by the second wireless communication is various signals (information) other than the main line image. An example of the second signal will be described below.
  • the second signal is a signal related to imaging by the CAM 200.
  • the second signal is a signal used for controlling the CAM 200.
  • the second signal is a synchronization signal for synchronizing each CAM 200.
  • the synchronization signal is, for example, a GENLOCK signal, which is a signal for synchronizing and operating a plurality of cameras (CAM200).
  • the synchronization signal is transmitted from a signal processing device such as CCU100 to CAM200.
  • the second signal is a command signal (command signal) for controlling the CAM 200.
  • the command signal also includes a response from the CAM 200 to the CCU 100.
  • the second signal is a control signal for controlling the aperture of the CAM 200, the white and black levels of the video signal, the color tone, and the like.
  • a signal of a command for controlling the CAM 200 is transmitted from a signal processing device such as the CCU 100 to the CAM 200.
  • the response signal from the CAM 200 to the CCU 100 is transmitted from the CAM 200 to a signal processing device such as the CCU 100.
  • the second signal is a signal used for information transmission between users who use the camera system 1.
  • the second signal is a signal of an image having a resolution lower than that of the main line image.
  • the second signal is a RET image signal (RET image signal).
  • the RET image signal is a video signal for the operator (cameraman) of the CAM 200 to confirm an image or the like of a camera (CAM 200) other than himself / herself. RET images do not require as much resolution as mainline images.
  • the RET image is an image having a resolution lower than that of the main line image. For example, the RET image is displayed on the viewfinder (VF) of the CAM 200 or the like. For example, the RET image signal is transmitted from one CAM 200 to another CAM 200.
  • the RET image since the RET image was communicated via the CCU, it was a route from the camera to the CCU and from the CCU to another camera (path via the CCU).
  • the CAMs 200 can directly communicate with each other, that is, between the cameras, the RET image can be communicated between the CAMs 200 without using the path via the CCU.
  • the second signal is a user's voice signal.
  • the second signal is an INCOM signal (INCOM signal).
  • the INCOM signal is an audio signal for conversation between users who use the camera system 1 such as staff.
  • the INCOM signal is transmitted from a signal processing device such as CCU100 to CAM200.
  • the INCOM signal is transmitted from the CAM 200 to a signal processing device such as the CCU 100.
  • an INCOM signal is transmitted from one CAM 200 to another CAM 200.
  • the INCOM signal is transmitted from one CAM 200 to another CAM 200 other than the one CAM 200.
  • the second signal is a signal used for transmitting information to the image subject by the CAM 200.
  • the second signal is a signal for showing the status of the CAM 200 to the image pickup subject.
  • the second signal is a TALLY signal (TALLY signal).
  • the TALLY signal is a signal indicating which camera (CAM200) is used to capture an image of a performer or the like.
  • the TALLY signal is transmitted from a signal processing device such as CCU100 to CAM200.
  • the TALLY lamp (light emitting part) of the CAM 200 lights up in red.
  • the TALLY lamp (light emitting unit) of the CAM 200 lights up in green during REC, although it is not used for OA.
  • the TALLY lamp (light emitting unit) of the CAM 200 lights up in yellow.
  • the above colors are examples, and the emission colors are not limited to the above, and each color may have various meanings.
  • the second signal is a signal used for transmitting information to the image subject by the CAM 200.
  • the second signal is a signal of character information to be notified to the image pickup target person.
  • the second signal is a Prompter signal (Prompter signal).
  • the prompter signal is a video signal for projecting a competition to a person to be imaged such as a performer. Prompter does not require as much resolution as mainline video.
  • the prompter is an image having a resolution lower than that of the main line image.
  • the Prompter signal is transmitted from a signal processing device such as the CCU 100 to the CAM 200.
  • the Prompter signal continues to be transmitted during OA.
  • first signal and the second signal may be appropriately set according to the purpose and application of the camera system 1. That is, any kind of signal may be included in the first signal and the second signal depending on the purpose and application of the camera system 1.
  • FIG. 2 is a diagram showing a configuration example of the camera system according to the first embodiment.
  • the camera system 1 shown in FIG. 2 may include a plurality of CAM200s and a plurality of CCU100s.
  • the camera system 1 may include various components, not limited to the CCU 100 and the CAM 200. Details of these points will be described later.
  • the CCU 100 is also called a camera control unit and is an information processing device used to control a camera. Further, the CCU 100 is a signal processing device having a wireless communication function and performing signal processing on an image captured by a camera. For example, the CCU 100 communicates with the camera to supply power and a reference signal to the camera. Further, for example, the CCU 100 receives a signal from the camera, processes the received signal, and outputs a signal in a predetermined format. For example, the CCU 100 has a function of controlling the aperture of the camera, the white and black levels of the video signal, the color tone, and the like. For example, the CCU 100 transmits a control signal for controlling the aperture of the camera, the white and black levels of the video signal, the color tone, and the like to the camera.
  • the CCU 100 has a wireless communication function and performs signal processing related to the image captured by the CAM 200.
  • the CCU 100 wirelessly connects to the CAM 200.
  • the CCU 100 communicates with the CAM 200 a first signal, which is a signal of an image captured by the CAM 200 by the first wireless communication.
  • the CCU 100 receives the signal of the image captured by the CAM 200 by the first wireless communication from the CAM 200.
  • the CCU 100 communicates with the CAM 200 a second signal other than the first signal by a second wireless communication different from the first wireless communication.
  • the CCU 100 transmits and receives a second signal other than the first signal by the second wireless communication with the CAM 200.
  • the CCU 100 satisfies at least one of being wider than the second wireless communication, more reliable than the second wireless communication, and lower delay than the second wireless communication. Communication is performed with the CAM 200 by one communication.
  • the CCU 100 communicates the second signal with the CAM 200 by the second wireless communication which is 4G communication, and communicates the first signal with the CAM 200 by the first wireless communication which is the 5G communication.
  • the CCU 100 communicates a signal related to imaging by the CAM 200 with the CAM 200.
  • the CCU 100 communicates with the CAM 200 a signal used to control the CAM 200.
  • the CCU 100 communicates with the CAM 200 a synchronization signal with another CAM 200 or a signal of a command for controlling the CAM 200.
  • the CCU 100 communicates with the CAM 200 a signal used for information transmission between users who use the camera system 1.
  • the CCU 100 communicates with the CAM 200 a video signal having a resolution lower than that of the video (main line video) captured by the CAM 200 or a user's voice signal.
  • the CCU 100 communicates a RET image signal or an INCOM signal with the CAM 200.
  • the CCU 100 communicates with the CAM 200 a signal used for transmitting information to the image subject by the CAM 200.
  • the CCU 100 communicates with the CAM 200 a signal for indicating the status of the CAM 200 to the imaging target person or a character information signal for notifying the imaging target person.
  • the CCU 100 communicates a TALLY signal or a Prompter signal with the CAM 200.
  • the CCU 100 communicates with a plurality of CAMs 200 by a first wireless communication and a second wireless communication.
  • the CCU 100 identifies the manufacturer of the CAM 200 when wirelessly connected to the CAM 200.
  • the CCU 100 receives information from the CAM 200 that identifies the manufacturer of the CAM 200. For example, the CCU 100 requires the CAM 200 to have information that identifies the manufacturer of the CAM 200.
  • the CAM200 is a camera that captures images.
  • the CAM 200 is a system camera used for shooting video for broadcasting such as television.
  • the CAM 200 is a system camera used in a photography studio, a stadium, or the like.
  • the CAM 200 has a wireless communication function and functions as an image capturing camera.
  • the CAM 200 wirelessly connects to the CCU 100.
  • the CAM 200 communicates with the CCU 100 a first signal, which is a signal of an image captured by the CAM 200 by the first wireless communication.
  • the CAM 200 transmits the signal of the image captured by the CAM 200 to the CCU 100 by the first wireless communication.
  • the CAM 200 communicates with the CCU 100 a second signal other than the first signal by a second wireless communication different from the first wireless communication.
  • the CAM 200 transmits and receives a second signal other than the first signal by the second wireless communication with the CCU 100.
  • the CAM 200 satisfies at least one of being wider than the second wireless communication, more reliable than the second wireless communication, and lower delay than the second wireless communication. Communication is performed with the CCU 100 by one communication.
  • the CAM 200 communicates the second signal with the CCU 100 by the second wireless communication which is 4G communication, and communicates the first signal with the CCU 100 by the first wireless communication which is the 5G communication.
  • the CAM 200 communicates a signal related to imaging by the CAM 200 with the CCU 100.
  • the CAM 200 communicates with the CCU 100 a signal used to control the CAM 200.
  • the CAM 200 communicates with the CCU 100 a synchronization signal with another CAM 200 or a signal of a command for controlling the CAM 200.
  • the CAM 200 communicates with the CCU 100 a signal used for information transmission between users who use the camera system 1.
  • the CAM 200 communicates with the CCU 100 a video signal having a resolution lower than that of the video (main line video) captured by the CAM 200 or a user's voice signal.
  • the CAM 200 communicates a RET image signal or an INCOM signal with the CCU 100.
  • the CAM 200 communicates with the CCU 100 a signal used for transmitting information to the image subject by the CAM 200.
  • the CAM 200 communicates with the CCU 100 a signal for indicating the status of the CAM 200 to the imaging target person or a character information signal for notifying the imaging target person.
  • the CAM 200 communicates a TALLY signal or a Prompter signal with the CCU 100.
  • the CAM 200 communicates with another CAM 200 by a second wireless communication.
  • the CAM 200 transmits information identifying the manufacturer of the CAM 200 to the CCU 100.
  • the CAM 200 transmits information identifying the manufacturer of the CAM 200 to the CCU 100 when wirelessly connected to the CCU 100.
  • the CAM 200 transmits the information identifying the manufacturer of the CAM 200 to the CCU 100 in response to the request for the information identifying the manufacturer from the CCU 100.
  • FIG. 2 illustrates only the configuration related to communication processing among the configurations of the CCU 100.
  • the CCU 100 includes a transmission signal processing unit 110, a video signal processing unit 120, a control signal processing unit 130, a video input / output I / F unit 140, and a control signal I / F unit 150. It has an antenna unit 160 (see FIG. 4).
  • the transmission signal processing unit 110 functions as a communication unit for transmitting and receiving signals.
  • the transmission signal processing unit 110 functions as a wireless communication unit that performs wireless communication with the camera that takes an image.
  • the transmission signal processing unit 110 is realized by, for example, a NIC (Network Interface Card), a communication circuit, or the like.
  • the transmission signal processing unit 110 transmits / receives a signal (information) to / from the CAM 200 by wireless communication. Further, the transmission signal processing unit 110 may be connected to a predetermined network by wire or wirelessly, and may transmit / receive information to / from another device or the like via the predetermined network.
  • the transmission signal processing unit 110 receives a signal from the CAM 200.
  • the transmission signal processing unit 110 receives a video (signal) from the CAM 200.
  • the transmission signal processing unit 110 controls communication.
  • the transmission signal processing unit 110 controls communication with other devices such as the CAM 200.
  • the transmission signal processing unit 110 controls communication between external information processing devices.
  • the transmission signal processing unit 110 controls communication with the CAM 200.
  • the CCU 100 When communicating with another camera that communicates by wire, the CCU 100 may have a connector portion used for a wired connection with the camera.
  • the CCU 100 makes a wired connection with the camera by connecting a camera cable or the like connected to the camera to the connector portion.
  • the transmission signal processing unit 110 controls communication with a camera connected by a camera cable or the like via a connector unit.
  • the camera cable referred to here may be various cables such as an optical composite cable, an optical fiber cable, and a twisted pair cable.
  • the CCU100 has a storage unit.
  • the storage unit is realized by, for example, a semiconductor memory element such as a RAM (Random Access Memory) or a flash memory (Flash Memory), or a storage device such as a hard disk or an optical disk.
  • the storage unit stores various types of information.
  • the storage unit stores various types of information used for signal processing.
  • a program for example, a signal processing program related to video
  • a CPU Central Processing Unit
  • an MPU Micro Processing Unit
  • RAM Random Access Memory
  • the video signal processing unit 120 may be realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).
  • the video signal processing unit 120 performs various signal processing.
  • the video signal processing unit 120 performs signal processing related to video.
  • the video signal processing unit 120 functions as a signal processing unit that performs signal processing related to the video captured by the camera.
  • the video signal processing unit 120 executes signal processing related to video according to the control signal.
  • the video signal processing unit 120 performs video signal processing (image processing) on the signal received by the transmission signal processing unit 110.
  • the video signal processing unit 120 executes various types of video signal processing.
  • the video signal processing unit 120 performs video signal processing on the signal and generates a signal in a predetermined format.
  • the video signal processing unit 120 performs processing related to demosaic.
  • the video signal processing unit 120 performs processing related to noise removal.
  • the video signal processing unit 120 performs processing related to gamma correction.
  • the video signal processing unit 120 performs processing related to brightness adjustment.
  • the video signal processing unit 120 performs processing related to white balance adjustment.
  • the video signal processing unit 120 performs processing related to gain adjustment.
  • the video signal processing unit 120 executes various video signal processing, not limited to the above.
  • the video signal processing unit 120 may perform a part of the video signal processing performed by the CAM 200 (video signal processing unit 220).
  • the control signal processing unit 130 is realized by, for example, a CPU, an MPU, or the like executing a program stored inside the CCU 100 (for example, a signal processing program related to control) using a RAM or the like as a work area. Further, the control signal processing unit 130 may be realized by an integrated circuit such as an ASIC or FPGA.
  • the control signal processing unit 130 performs signal processing related to control.
  • the control signal processing unit 130 performs signal processing related to the control of the CAM 200.
  • the control signal processing unit 130 performs signal processing related to the control of the CCU 100.
  • the control signal processing unit 130 performs signal processing related to camera control.
  • the control signal processing unit 130 generates a control signal (control information) for controlling the camera.
  • the control signal processing unit 130 performs signal processing related to the control of the CAM 200.
  • the control signal processing unit 130 generates a control signal for controlling the CAM 200.
  • the control signal processing unit 130 generates a signal for a command that controls the camera.
  • the control signal processing unit 130 generates a control signal for adjusting the aperture of the camera.
  • the control signal processing unit 130 controls the CAM 200 by transmitting a control signal to the CAM 200 via the transmission signal processing unit 110.
  • the control signal processing unit 130 controls the camera by transmitting a control signal to the camera via the transmission signal processing unit 110.
  • the control signal processing unit 130 outputs a control signal to the CAM 200 via the transmission signal processing unit 110.
  • control signal processing unit 130 executes various control signal processings, not limited to the above.
  • the control signal processing unit 130 may perform a part of the control signal processing performed by the CAM 200 (control signal processing unit 230).
  • control signal processing unit 130 may be integrated with the video signal processing unit 120.
  • the video signal processing unit 120 and the control signal processing unit 130 may be realized by the same processor.
  • the video input / output I / F unit 140 has a function as an input / output interface for video.
  • the video input / output I / F unit 140 is an interface for connecting the CCU 100 and another information processing device.
  • the CCU 100 communicates information related to video such as a video signal with another information processing device via the video input / output I / F unit 140.
  • the communication by the video input / output I / F unit 140 may be wired communication or wireless communication.
  • the CCU 100 transmits information related to video such as a video signal to another information processing device via the video input / output I / F unit 140.
  • the video input / output I / F unit 140 is connected to a switcher and transmits information related to video such as a video signal to the switcher.
  • the video input / output I / F unit 140 may be connected to a storage device (database) to store information related to video such as a video signal in the storage device.
  • the video input / output I / F unit 140 may have a function of displaying a GUI (Graphical User Interface) such as a menu, a button, or a cursor on a display (display screen). Further, the video input / output I / F unit 140 may accept input related to video by a user through an interface such as a display, a keyboard, or a mouse. In this case, for example, the CCU 100 receives data from an input device such as a keyboard or mouse via the video input / output I / F unit 140.
  • GUI Graphic User Interface
  • the control signal I / F unit 150 has a function as an interface for the control signal.
  • the control signal I / F unit 150 is an interface for connecting the CCU 100 and another information processing device.
  • the CCU 100 communicates information related to control such as control signals with other information processing devices via the control signal I / F unit 150.
  • the communication by the control signal I / F unit 150 may be wired communication or wireless communication.
  • the CCU 100 receives information related to control such as a control signal from another information processing device via the control signal I / F unit 150.
  • the control signal I / F unit 150 connects to a switcher and receives information related to control such as a control signal from the switcher.
  • the control signal I / F unit 150 may have a function of displaying a GUI (Graphical User Interface) such as a menu, a button, or a cursor on a display (display screen). Further, the control signal I / F unit 150 may accept input related to control by the user through an interface such as a display, a keyboard, or a mouse. In this case, for example, the CCU 100 receives data from an input device such as a keyboard or mouse via the control signal I / F unit 150.
  • GUI Graphic User Interface
  • the antenna unit 160 has a function of transmitting and receiving radio waves.
  • the antenna unit 160 radiates the signal output by the transmission signal processing unit 110 into space as a radio wave. Further, the antenna unit 160 converts a radio wave in space into a signal and outputs the signal to the transmission signal processing unit 110. The arrangement of the antenna unit 160 will be described later.
  • FIG. 2 illustrates only the configuration related to communication processing among the configurations of the CAM 200.
  • the description of the physical configuration for moving the CAM 200 will be omitted.
  • the description of the optical member such as a lens and the physical configuration for adjusting the focus, zoom, aperture, etc. of the optical member will be omitted.
  • the CAM 200 includes a transmission signal processing unit 210, a video signal processing unit 220, a control signal processing unit 230, a video input / output I / F unit 240, and an image pickup element 250.
  • the transmission signal processing unit 210 functions as a communication unit for transmitting and receiving signals.
  • the transmission signal processing unit 210 functions as a wireless communication unit that performs wireless communication between signal processing devices that perform signal processing related to video.
  • the transmission signal processing unit 210 is realized by, for example, a NIC or a communication circuit.
  • the transmission signal processing unit 210 transmits and receives signals (information) to and from the CCU 100 by wireless communication. Further, the transmission signal processing unit 210 may be connected to a predetermined network by wire or wirelessly, and may transmit / receive information to / from another device or the like via the predetermined network.
  • the transmission signal processing unit 210 controls communication.
  • the transmission signal processing unit 210 controls communication with other devices such as the CCU 100.
  • the transmission signal processing unit 210 controls communication between external information processing devices.
  • the transmission signal processing unit 210 controls communication with the CCU 100.
  • the transmission signal processing unit 210 transmits the video (signal) captured by the image sensor 250 to the CCU 100.
  • the transmission signal processing unit 210 receives the control signal from the CCU 100.
  • the transmission signal processing unit 210 receives a control signal from the CCU 100 for controlling the aperture of the camera, the white and black levels of the video signal, the color tone, and the like.
  • the CAM 200 has a storage unit.
  • the storage unit is realized by, for example, a semiconductor memory element such as a RAM or a flash memory, or a storage device such as a hard disk or an optical disk.
  • the storage unit stores various types of information.
  • the storage unit stores various types of information used for signal processing.
  • the video signal processing unit 220 is realized by, for example, a CPU, an MPU, or the like executing a program stored inside the CAM 200 (for example, a signal processing program related to video) using a RAM or the like as a work area. Further, the video signal processing unit 220 may be realized by an integrated circuit such as an ASIC or FPGA.
  • the video signal processing unit 220 performs various signal processing.
  • the video signal processing unit 220 performs signal processing related to video.
  • the video signal processing unit 220 performs signal processing on the video captured by the image sensor 250.
  • the video signal processing unit 220 executes signal processing related to video according to the control signal.
  • the video signal processing unit 220 performs video signal processing (image processing) on the video (signal) captured by the image pickup element 250.
  • the video signal processing unit 220 executes various types of video signal processing.
  • the video signal processing unit 220 executes signal processing related to video in response to a control signal from the CCU 100. For example, the video signal processing unit 220 performs a process of adjusting the white level and the black level of the video signal. Further, for example, the video signal processing unit 220 performs a process of adjusting the color tone.
  • the video signal processing unit 220 executes various video signal processing not limited to the above.
  • the video signal processing unit 220 may perform a part of the video signal processing performed by the CCU 100 (video signal processing unit 120).
  • the control signal processing unit 230 is realized by, for example, a CPU, an MPU, or the like executing a program stored inside the CCU 100 (for example, a signal processing program related to control) using a RAM or the like as a work area. Further, the control signal processing unit 230 may be realized by an integrated circuit such as an ASIC or FPGA.
  • the control signal processing unit 230 performs signal processing related to control.
  • the control signal processing unit 230 performs signal processing related to the control of the CAM 200.
  • the control signal processing unit 230 controls the CAM 200 using the control information.
  • the control signal processing unit 230 receives a control signal from the CCU 100 via the transmission signal processing unit 210, and controls the CAM 200 using the received control information.
  • the control signal processing unit 230 controls the aperture of the CAM 200 by using the control signal received from the CCU 100.
  • the control signal processing unit 230 controls the aperture of the CAM 200 by using the control signal for adjusting the aperture of the camera received from the CCU 100.
  • the control signal processing unit 230 uses the control signal to instruct the configuration for adjusting an optical member such as a lens to make adjustments corresponding to the control signal.
  • control signal processing unit 230 executes various control signal processing, not limited to the above.
  • control signal processing unit 230 may perform a part of the control signal processing performed by the CCU 100 (control signal processing unit 130).
  • control signal processing unit 230 may be integrated with the video signal processing unit 220.
  • the video signal processing unit 220 and the control signal processing unit 230 may be realized by the same processor.
  • the video input / output I / F unit 240 has a function as an input / output interface for video.
  • the video input / output I / F unit 240 is an interface for connecting the CAM 200 and another information processing device.
  • the video input / output I / F unit 240 may have the same function as the video input / output I / F unit 140.
  • the image sensor 250 functions as an image pickup unit that captures an image.
  • the imaging unit may have an optical member such as a lens or an adjustment mechanism for adjusting the focus, zoom, and aperture of the optical member.
  • the image sensor 250 converts an image into an electric signal.
  • CMOS Complementary Metal Oxide Semiconductor
  • image sensor 250 is not limited to a CMOS image sensor, and various image sensors such as a CCD (Charge Coupled Device) image sensor may be used.
  • CCD Charge Coupled Device
  • the CAM 200 has an antenna portion.
  • the antenna unit has a function of transmitting and receiving radio waves.
  • the antenna unit radiates the signal output by the transmission signal processing unit 210 into space as radio waves. Further, the antenna unit converts the radio wave in space into a signal and outputs the signal to the transmission signal processing unit 210.
  • the antenna unit is arranged behind the CAM 200.
  • the antenna unit is arranged at a position facing the image sensor 250.
  • the antenna unit is arranged in a direction opposite to the direction in which the image sensor 250 faces.
  • the antenna unit is arranged on the side opposite to the side on which the image sensor 250 is arranged.
  • the antenna portion is arranged on the rear side opposite to the front side on which the image sensor 250 is arranged.
  • FIG. 3 is a flowchart showing an example of processing of the camera system according to the first embodiment.
  • the CAM 200 executes imaging (step S101). For example, the CAM 200 is imaged by the image sensor 250. Then, the CAM 200 transmits the captured image to the CCU 100. The CAM 200 transmits the video to the CCU 100 by the first wireless communication.
  • the CCU100 executes signal processing related to video (step S102).
  • the CCU 100 executes signal processing on the video acquired from the CAM 200.
  • the antenna of the CCU 100 which is a signal processing device, may be arranged in various arrangements. This point will be described with reference to FIGS. 4 to 6.
  • the CCU 100 may be used in a predetermined position or may be portable.
  • FIG. 4 is a diagram showing an example of antenna arrangement of the signal processing device.
  • the antenna portion 160 of the CCU 100 is arranged on the front side of the CCU 100.
  • the antenna portion 160 of the CCU 100 is arranged on the front FF side of the main body portion 101 of the CCU 100.
  • the antenna portion 160 of the CCU 100 is arranged on the front FF side which is arranged on the front side of the shelf or the like.
  • the antenna portion 160 of the CCU 100 is arranged on the front FF side which is arranged so as to face the front of the shelf when the CCU 100 is stored in a shelf or the like.
  • the main body 101 of the CCU 100 has a configuration that realizes a transmission signal processing unit 110, a video signal processing unit 120, a control signal processing unit 130, a video input / output I / F unit 140, a control signal I / F unit 150, a storage unit, and the like.
  • processor, memory, etc. is a housing (case) to be stored.
  • FIG. 5 is a diagram showing an example of antenna arrangement of the signal processing device.
  • the antenna portion 160 of the CCU 100 is arranged on the rear side of the CCU 100.
  • the antenna portion 160 of the CCU 100 is arranged on the rear RF side of the main body portion 101 of the CCU 100.
  • the antenna portion 160 of the CCU 100 is arranged on the rear surface RF side which is arranged on the rear surface side of the shelf or the like.
  • the antenna portion 160 of the CCU 100 is arranged on the rear RF side, which is arranged so as to face the rear of the shelf when the CCU 100 is stored in a shelf or the like.
  • FIG. 6 is a diagram showing an example of antenna arrangement of the signal processing device.
  • the antenna is arranged separately from the main body of the signal processing device.
  • the CCU 100 of FIG. 6 includes a main body 101 that performs signal processing, and an antenna 160 that is separated from the main body 101 and performs wireless communication with the CAM 200.
  • the CCU 100 has a separation unit 170 that is wiredly connected to the main body unit 101 by a cable WR.
  • the cable WR may be various cables such as an optical composite cable, an optical fiber cable, and a twisted pair cable.
  • the antenna portion 160 is arranged in the separation portion 170 of the CCU 100, and the antenna portion 160 can be arranged at a position separated from the main body portion 101. As a result, in the CCU 100 of FIG. 6, the degree of freedom in arranging the antenna can be improved.
  • FIG. 21 is a sequence diagram showing a conventional polling process.
  • the conventional system 5 which is a conventional camera system, includes a conventional signal processing device CCU 51 and a conventional camera CAM 52.
  • the CCU 51 confirms the CAM connection status (step S501). For example, the CCU 51 confirms the connection status with the CAM 52. Then, the CAM 52 replies that the connection is OK to the CCU 51 (step S502). For example, the CAM 52 transmits information indicating that the CCU 51 can be connected.
  • the process as shown in steps S501 to S502 is the connection confirmation polling process, and conventionally, the data reciprocates once between the CAM and the CCU.
  • the CCU 51 confirms the CAM connection status (step S503).
  • the interval between the step S501 and the step S503 corresponds to the polling interval t p.
  • FIG. 21 shows a case where the CAM connection status confirmation by the CCU 51 in step S503 is not transmitted to the CAM 52.
  • a predetermined period after the lapse of the polling interval t p in FIG. 21 corresponds to the timeout time t w.
  • the processing PS51 when the wireless connection is disconnected, the polling signal does not come, so the CAM 52 performs the timeout processing.
  • the CAM 52 performs a reconnection process after a timeout.
  • the CAM 52 requests a reconnection process (step S504).
  • the CAM 52 requests a reconnection process after a timeout.
  • the CCU 51 returns a processing response to the reconnection request to the CAM 52, as shown in the processing PS52.
  • the CCU 51 returns the reconnection result to the CAM 52 (step S505).
  • Reconnection time t r in FIG. 21 corresponds to the time until receiving a reply reconnection Results reconnection process request (reconnection time).
  • polling is performed from the master (CCU51) side to the client (CAM52) side. That is, in the conventional system 5, since the polling sequence is started from the master (CCU51) side, the data required for polling reciprocates, which consumes the radio band. Since whether or not the CAM 52 side can be wirelessly connected can be determined only by the presence or absence of a polling reply, the CCU 51 needs to confirm the presence or absence of a reconnection request from the CAM 52.
  • FIG. 7 is a sequence diagram showing an example of polling processing according to the first embodiment.
  • the flow of polling processing according to the first embodiment will be described.
  • the same points as in FIG. 21 will be omitted as appropriate.
  • the CAM 200 transmits (replies) to the CCU 100 that the connection is OK (step S1). For example, the CAM 200 transmits information indicating that the CCU 100 can be connected.
  • the wireless connection is OK
  • the CAM200 side does not need to know the status of the CCU100, so the CAM200 unilaterally transmits the OK status to the CCU100 side.
  • the camera system 1 can suppress an increase in the amount of data (data communication amount) at the time of polling.
  • the CAM 200 transmits information indicating that the connection is OK to the CCU 100 (step S2).
  • the interval between the step S1 and the step S2 corresponds to the polling interval t p.
  • FIG. 7 shows a case where the information indicating the connection OK by the CAM 200 in step S2 is not transmitted to the CCU 100.
  • the CAM 200 determines that the connection with the CCU 100 side is disconnected and performs the reconnection process. As a result, the camera system 1 does not have to wait for a polling response from the CCU 100 side, so that time-out processing becomes unnecessary.
  • the interval between steps S2 and S3 can be set to a very short time (approximately 0).
  • the CAM 200 performs a reconnection process (step S3).
  • the CAM 200 requests a reconnection process. For example, when the wireless connection is disconnected, the CAM 200 determines that the connection with the CCU 100 side is disconnected, and immediately performs the reconnection process.
  • the CCU 100 returns a processing response to the reconnection request to the CAM 200, as shown in the processing PS2.
  • the CCU 100 returns the reconnection result to the CAM 200 (step S4).
  • Reconnection time t r in FIG. 7 corresponds to the time until receiving a reply reconnection Results reconnection process request (reconnection time).
  • the CAM 200 starts checking the wireless connection status between the CAM 200 and the CCU 100. For example, in the camera system 1, if the wireless connection on the CCU100 side is cut off and polling does not reach, a connection request is sent from the CCU100 side to the CAM200 side. Therefore, in the camera system 1, when the CAM200 side receives the connection request from the CCU100 side, the polling operation may be shifted to the connection response sequence, the response may be returned, and then the polling operation may be returned.
  • the return time on the CAM200 side can be shortened by starting the polling sequence from the CAM200 side (client side).
  • the operator (cameraman) of the CAM 200 it is not realistic for the operator (cameraman) of the CAM 200 to perform the reconnection work with the CCU 100. Further, it is not realistic to perform the same work on the CCU100 side (studio, etc.). In the camera system 1, the reconnection work can be appropriately performed without performing such a work.
  • FIG. 8 is a diagram showing an example of communication processing using the master camera. The same points as in FIG. 1 will not be described.
  • the camera system 1 includes one master camera and a camera other than the master camera (hereinafter, also referred to as "slave camera").
  • the CCU 100 transmits a control signal common to the plurality of CAM 200s to one master camera of the plurality of CAM 200s.
  • the master camera of one of the plurality of CAM 200s transmits a control signal to the other CAM 200s (plurality of slave cameras).
  • the CCU 100 transmits a control signal such as common settings common to the plurality of CAMs 200 to the master camera CAM200-2.
  • the CCU 100 transmits a control signal common to a plurality of CAM 200s to the CAM 200-2 by the communication CM1 in FIG.
  • the master camera CAM200-2 transmits the control signal received from the CCU100 to the other CAM200s (plurality of slave cameras) CAM200-1 and CAM200-3.
  • the CAM200-2 transmits the control signal received from the CCU 100 to the CAM200-1 by the communication CM2 in FIG.
  • the CAM200-2 transmits a control signal for the CAM200-1 received from the CCU100 to the CAM200-1.
  • the CAM200-2 transmits a control signal for the CAM200-3 received from the CCU100 to the CAM200-3.
  • the camera system 1 can also transmit information to the CAM200-1 and the CAM200-3 via the master camera CAM200-2.
  • the camera system 1 can perform the common setting via the master camera when the common setting of each camera is performed from the CCU. As a result, the camera system 1 can also improve the utilization efficiency of the wireless band.
  • the operation mode in which the master camera is determined is an example of the operation mode, and the camera system 1 broadcasts and sets common settings without deciding the master camera, for example, when there is no problem in the wireless band. May be good.
  • the system configuration and communication mode of the camera system are not limited to the first embodiment described above, and may be various system configurations and communication modes. This point will be described below.
  • the communication mode may be via another device (equipment).
  • the camera system 1A in which the CCU 100 and the CAM 200 communicate with each other via the base station is shown. The same points as in the first embodiment will be omitted as appropriate.
  • FIG. 9 is a diagram showing an example of a camera system and communication processing according to the second embodiment of the present disclosure.
  • the configuration of the camera system 1A shown in FIG. 9 will be described.
  • the camera system 1A includes a CCU 100 and a plurality of CAM 200s.
  • FIG. 9 shows a case where a radio base station is interposed between the CAM 200 and the CCU 100.
  • the first wireless communication is performed via the base station 300-1, which is the first base station.
  • the base station 300-1 is a device that provides a wireless communication service to each device of the camera system 1A.
  • the base station 300-1 is a radio base station used for communication between each device of the camera system 1A.
  • the base station 300-1 is a base station that provides a wireless communication service by the first wireless communication.
  • the first wireless communication between the CAM 200 and the CCU 100 is performed via the base station 300-1, which is the first base station.
  • the second wireless communication is performed via the second base station, the base station 300-2.
  • the base station 300-2 is a device that provides a wireless communication service to each device of the camera system 1A.
  • the base station 300-2 is a radio base station used for communication between each device of the camera system 1A.
  • the base station 300-2 is a base station that provides a wireless communication service by a second wireless communication.
  • the second wireless communication between the CAM 200 and the CCU 100 is performed via the second base station, the base station 300-2.
  • the camera system 1A may include a base station 300. Further, the first base station that performs the first wireless communication and the second base station that performs the second wireless communication may be integrated. For example, the base station 300-1 and the base station 300-2 may be integrated.
  • the camera system may be configured using 5G related technology.
  • the camera system may have a system configuration that uses a base station (also referred to as a “5G base station”) that provides 5G communication.
  • a base station also referred to as a “5G base station”
  • FIGS. 10 and 11 are diagrams showing an example in which a 5G base station is arranged in the stadium. The same points as those of the camera system 1 and the camera system 1A described above will be omitted as appropriate.
  • the camera system 1Aa includes a CCU 100, a CAM 200, a cloud 500, and an OBVAN 600.
  • the cloud 500 is a server device (cloud server) or the like used to provide a cloud service, and has a function of communicating with the CCU 100.
  • the cloud 500 uses the information received from the CCU 100 to provide a service or transmit the information to another device.
  • the OBVAN 600 is an automobile equipped with equipment for recording and transmitting live video, a so-called relay vehicle (Outside Broadcast Van), and has a function of communicating with the CCU 100.
  • the CCU100, CAM200, and 5G base station 300-5 are arranged in the stadium SD, which is a stadium.
  • FIG. 10 shows a case where the 5G base station 300-5 is installed in the stadium SD.
  • FIG. 10 a case where the CCU100, CAM200, and 5G base station 300-5 are arranged in the stadium SD is shown as an example, but the place where the CCU100, CAM200, and 5G base station 300-5 are arranged is the stadium.
  • the SD may be in another structure such as a concert hall or a building.
  • Cloud 500 and OBVAN 600 are located outside the stadium SD.
  • Cloud 500, OBVAN 600, etc. located outside the stadium SD may be described as "external device”.
  • the external device arranged outside the stadium SD is not limited to the cloud 500 and the OBVAN 600, and any device may be included as long as it can communicate with the device in the stadium SD such as CCU100.
  • wireless communication is performed using D2D (device to device) communication in which resources are secured by the 5G base station 300-5 installed in the stadium SD.
  • communication in the stadium SD is performed using D2D communication.
  • Communication using D2D communication is performed between each CAM 200 arranged in the stadium SD.
  • communication using D2D communication is performed between each CAM 200 and CCU 100 arranged in the stadium SD.
  • direct communication is performed between each CAM 200 and CCU 100 or between each CAM 200 without going through the 5G base station 300-5.
  • a return (RET) video or audio signal is transmitted / received between each CAM 200 and CCU 100 or between each CAM 200 using D2D communication.
  • a second signal is transmitted and received between each CAM 200 and CCU 100 or between each CAM 200 using D2D communication.
  • each CAM 200 transmits a first signal to the CCU 100 by D2D communication.
  • the device inside the stadium SD and the device outside the stadium SD communicate with each other via a base station or a core net (core network).
  • the device inside the stadium SD and the device outside the stadium SD communicate with each other via a base station other than the 5G base station 300-5 or the 5G base station 300-5.
  • the CCU 100 transmits and receives various signals (information) to and from an external device such as a cloud 500 or an OBVAN 600 by the communication CM 21 in FIG.
  • an external device such as a cloud 500 or an OBVAN 600
  • live video or the like is communicated between the CCU 100 and an external device such as a cloud 500 or an OBVAN 600 via a base station or a core network (core network).
  • core network core network
  • FIG. 11 differs from FIG. 10 in that communication between the CAM 200 and the CCU 100 is performed via a base station or a core net (core network).
  • wireless communication inside and outside the stadium SD is performed via a 5G base station or a core net installed in the stadium SD.
  • communication in the stadium SD is performed via the 5G base station 300-5.
  • Communication is performed between the CAMs 200 arranged in the stadium SD via the 5G base station 300-5. Further, communication is performed between each CAM 200 and CCU 100 arranged in the stadium SD via the 5G base station 300-5.
  • a return (RET) video or audio signal is transmitted / received via the 5G base station 300-5.
  • a second signal is transmitted and received between each CAM 200 and CCU 100 or between each CAM 200 via the 5G base station 300-5.
  • each CAM 200 transmits a first signal to the CCU 100 via a 5G base station 300-5.
  • the device inside the stadium SD and the device outside the stadium SD communicate with each other via a base station or a core net (core network).
  • the device inside the stadium SD and the device outside the stadium SD communicate with each other via a base station other than the 5G base station 300-5 and the 5G base station 300-5.
  • the CCU 100 transmits and receives various signals (information) to and from an external device such as a cloud 500 or an OBVAN 600 by the communication CM 21 in FIG.
  • an external device such as a cloud 500 or an OBVAN 600
  • live video or the like is communicated between the CCU 100 and an external device such as a cloud 500 or an OBVAN 600 via a base station or a core network (core network).
  • core network core network
  • the system configuration using one CCU 100 is shown, but there may be a plurality of CCU 100s.
  • the camera system 1B including a plurality of CCU 100s is shown. The same points as those of the first embodiment and the second embodiment will be omitted as appropriate.
  • FIG. 12 is a diagram showing an example of a camera system and communication processing according to the third embodiment of the present disclosure.
  • the camera system 1B includes a plurality of CCU 100s and a plurality of CAMs 200.
  • CCU100-1 to CCU100-3 and the like are described without particular distinction, they are described as CCU100.
  • the camera system 1B shown in FIG. 12 shows a configuration in which one CAM200 is connected to one CCU100, that is, a configuration in which the camera and the CCU are connected at a ratio of 1: 1.
  • the CCU 100 according to the third embodiment is different from the CCU 100 according to the first embodiment and the CCU 100 according to the second embodiment in that it communicates with one CAM 200.
  • CCU100-1 is wirelessly connected to CAM200-1.
  • the CAM200-1 transmits the main line video signal (first signal) to the CCU100-1 by the first wireless communication.
  • the CCU100-1 receives the first signal from the CAM200-1 by the first wireless communication.
  • the CAM200-1 transmits a signal (second signal) other than the first signal to the CCU100-1 by a second wireless communication.
  • the CCU100-1 receives the second signal from the CAM200-1 by the second wireless communication.
  • the CCU100-2 is wirelessly connected to the CAM200-2.
  • the CAM200-2 transmits the main line video signal (first signal) to the CCU100-2 by the first wireless communication.
  • the CCU100-2 receives the first signal from the CAM200-2 by the first wireless communication.
  • the CAM 200-2 transmits a signal other than the first signal (second signal) to the CCU 100-2 by the second wireless communication.
  • the CCU100-2 receives the second signal from the CAM200-2 by the second wireless communication.
  • the CCU100-3 is wirelessly connected to the CAM200-3.
  • the CAM200-3 transmits the main line video signal (first signal) to the CCU100-3 by the first wireless communication.
  • the CCU100-3 receives the first signal from the CAM200-3 by the first wireless communication.
  • the CAM 200-3 transmits a signal other than the first signal (second signal) to the CCU 100-3 by the second wireless communication.
  • the CCU100-3 receives the second signal from the CAM200-3 by the second wireless communication.
  • the camera system may have a system configuration divided into a plurality of groups.
  • the camera system 1C composed of a plurality of groups including the CCU 100 and the CAM 200 is shown. The same points as in the first to third embodiments will be omitted as appropriate.
  • the camera system 1C shown in FIG. 13 includes a group GP1 including one CCU100-1 and two CAM200-1 and 200-2, and one CCU100-2 and two CAM200-3 and 200-4. It is composed of the including group GP2.
  • each CCU 100 is grouped in the same system.
  • CCU100-1 is wirelessly connected to CAM200-1 and CAM200-2.
  • the CAM200-1 and CAM200-2 transmit the main line video signal (first signal) to the CCU100-1 by the first wireless communication.
  • CCU100-1 receives the first signal from CAM200-1 and CAM200-2 by the first wireless communication.
  • CCU100-1 receives the second signal from CAM200-1 and CAM200-2 by the second wireless communication.
  • the CAM200-1 and the CAM200-2 transmit and receive a second signal by a second wireless communication.
  • the CAM200-1 transmits a signal (second signal) other than the first signal to the CCU100-1 and the CAM200-2 by the second wireless communication.
  • the CAM200-2 transmits a signal (second signal) other than the first signal to the CCU100-1 and the CAM200-1 by the second wireless communication.
  • CCU100-2 is wirelessly connected to CAM200-3 and CAM200-4.
  • the CAM 200-3 and the CAM 200-4 transmit the main line video signal (first signal) to the CCU 100-2 by the first wireless communication.
  • CCU100-2 receives the first signal from CAM200-3 and CAM200-4 by the first wireless communication.
  • CCU100-2 receives the second signal from CAM200-3 and CAM200-4 by the second wireless communication.
  • the CAM 200-3 and the CAM 200-4 transmit and receive a second signal by a second wireless communication.
  • the CAM200-3 transmits a signal (second signal) other than the first signal to the CCU100-2 and the CAM200-4 by the second wireless communication.
  • the CAM200-4 transmits a signal (second signal) other than the first signal to the CCU100-2 and the CAM200-3 by the second wireless communication.
  • the CCU 100 stores information (for example, a camera ID, etc.) that identifies a camera belonging to the same group as itself in a storage unit.
  • the CCU 100 stores information (camera ID) that identifies a camera that can be connected to itself in the storage unit.
  • the CCU 100 determines whether or not the CAM 200 requesting the connection can be connected based on the comparison result between the camera ID stored in the storage unit and the camera ID of the CAM 200 requesting the connection. Therefore, when the camera (CAM200-3) of the group GP2 makes a connection to the CCU100-1 of the group GP2, the CCU100-1 rejects the connection.
  • the CCU100-1 includes the camera ID of the CAM200-3 in the camera ID that can be connected to itself. Since there is no such thing, the connection of CAM200-3 is rejected.
  • the camera system 1C can reject the connection on the CCU100 side even when the CAM200 of a different group requests the connection to the CCU100.
  • a different camera number (camera ID, etc.) is always assigned to each camera, and by managing the camera number on the CCU side, it is possible to appropriately determine whether or not to connect.
  • the CCU 100 rejects the connection.
  • a mesh network is adopted for control signals such as synchronization signals, commands, TALLY, INCOM, etc. and RET images.
  • control signals such as synchronization signals, commands, TALLY, INCOM, etc. and RET images.
  • IP Internet Protocol
  • the possibility of delay becoming a problem can be suppressed.
  • the number of hops in which the delay is within the allowable range for example, the delay is equal to or less than a predetermined threshold value
  • the possibility that the delay becomes a problem can be suppressed.
  • the cameras (CAM200) are wirelessly connected to each other, it is not necessary to pass through a signal processing device (CCU100 or the like) when exchanging INCOM or RET images between cameramen. Therefore, the wireless band between the camera and the signal processing device (CCU100 or the like) can be effectively used.
  • the camera system may include other devices in addition to the CCU 100 and CAM 200.
  • the camera system 2 including the signal processing device 400 (hereinafter, also referred to as “BPU400”) in addition to the CCU 100 and the CAM 200 is shown.
  • the BPU 400 is inserted between the CCU 100 and the CAM 200. The same points as those in the first to fourth embodiments will be omitted as appropriate.
  • FIG. 14 is a diagram showing a configuration example of a camera system according to a fifth embodiment of the present disclosure.
  • the camera system 2 includes a CCU 100, a CAM 200, and a BPU 400.
  • the BPU 400 and the CCU 100 are wirelessly connected to each other via a predetermined communication network (network). Further, the BPU 400 and the CAM 200 are wirelessly connected to each other via a predetermined communication network (network).
  • the camera system 2 is different from the first to fourth embodiments in that the BPU 400 is configured to communicate with the CCU 100 and the CAM 200.
  • the camera system 2 shown in FIG. 14 may include a plurality of CAM200s, a plurality of CCU100s, and a plurality of BPU400s. For example, in the example of FIG. 15, the case where the camera system 2 shown in FIG. 14 includes three CAM 200s is shown.
  • the CCU 100 according to the fifth embodiment is different from the first to fourth embodiments in that it communicates with the BPU 400.
  • the transmission signal processing unit 110 functions as a communication unit that communicates with the BPU 400.
  • the transmission signal processing unit 110 is connected to a predetermined network by wire or wirelessly, and transmits / receives information to / from the BPU 400 via the predetermined network.
  • the CCU 100 according to the fifth embodiment may be connected to the BPU 400 by wire.
  • the CAM 200 according to the fifth embodiment is different from the first to fourth embodiments in that it communicates with the BPU 400.
  • the transmission signal processing unit 210 functions as a wireless communication unit that performs wireless communication with the BPU 400, which is a signal processing device that performs signal processing related to video.
  • the transmission signal processing unit 210 is realized by, for example, a NIC or a communication circuit.
  • the transmission signal processing unit 210 transmits / receives a signal (information) to / from the BPU 400 by wireless communication.
  • the transmission signal processing unit 210 controls communication with other devices such as the BPU 400.
  • the transmission signal processing unit 210 controls communication with the BPU 400.
  • the transmission signal processing unit 210 transmits the video (signal) captured by the image sensor 250 to the BPU 400.
  • the transmission signal processing unit 210 receives the control signal from the BPU 400.
  • the transmission signal processing unit 210 receives a control signal from the BPU 400 for controlling the aperture of the camera, the white and black levels of the video signal, the color tone, and the like.
  • the BPU 400 is also called a base band processor unit (Base Band Processor Unit), and is an information processing device used to control a camera.
  • the BPU 400 is connected to the camera and the CCU to perform color adjustment and the like.
  • the BPU 400 is a signal processing device having a wireless communication function and performing signal processing on an image captured by a camera.
  • the BPU 400 wirelessly communicates with the camera.
  • the BPU 400 transmits a control signal for controlling the aperture of the camera, the white and black levels of the video signal, the color tone, and the like to the camera.
  • the BPU 400 performs gamma correction and demosaic processing.
  • the BPU 400 has a wireless communication function and performs signal processing related to the image captured by the CAM 200.
  • the BPU 400 wirelessly connects to the CAM 200.
  • the BPU 400 communicates with the CAM 200 a first signal, which is a signal of an image captured by the CAM 200 by the first wireless communication.
  • the BPU 400 receives the signal of the image captured by the CAM 200 by the first wireless communication from the CAM 200.
  • the BPU 400 communicates with the CAM 200 a second signal other than the first signal by a second wireless communication different from the first wireless communication.
  • the BPU 400 transmits and receives a second signal other than the first signal by the second wireless communication with the CAM 200.
  • the BPU 400 satisfies at least one of being wider than the second wireless communication, more reliable than the second wireless communication, and lower delay than the second wireless communication. Communication is performed with the CAM 200 by one communication.
  • the BPU 400 communicates the second signal with the CAM 200 by the second wireless communication which is 4G communication, and communicates the first signal with the CAM 200 by the first wireless communication which is the 5G communication.
  • the BPU 400 communicates a signal related to imaging by the CAM 200 with the CAM 200.
  • the BPU 400 communicates with the CAM 200 a signal used to control the CAM 200.
  • the BPU 400 communicates with the CAM 200 a synchronization signal with another CAM 200 or a signal of a command for controlling the CAM 200.
  • the BPU 400 communicates with the CAM 200 a signal used for information transmission between users who use the camera system 1.
  • the BPU 400 communicates with the CAM 200 a video signal having a resolution lower than that of the video (main line video) captured by the CAM 200 or a user's voice signal.
  • the BPU 400 communicates a RET image signal or an INCOM signal with the CAM 200.
  • the BPU 400 communicates with the CAM 200 a signal used for transmitting information to the image subject by the CAM 200.
  • the BPU 400 communicates with the CAM 200 a signal for indicating the status of the CAM 200 to the imaging target person or a character information signal for notifying the imaging target person.
  • the BPU 400 communicates a TALLY signal or a Prompter signal with the CAM 200.
  • the BPU 400 communicates with a plurality of CAMs 200 by a first wireless communication and a second wireless communication.
  • the BPU 400 identifies the manufacturer of the CAM 200 when wirelessly connected to the CAM 200.
  • the BPU 400 receives information from the CAM 200 that identifies the manufacturer of the CAM 200. For example, the BPU 400 requires the CAM 200 to have information that identifies the manufacturer of the CAM 200.
  • the BPU 400 transmits the main line image received from the CAM 200 to the CCU 100.
  • the BPU 400 transmits the first signal received from the CAM 200 to the CCU 100.
  • the BPU 400 executes signal processing on the first signal received from the CAM 200, and transmits the first signal after the signal processing to the CCU 100.
  • the BPU 400 transmits a control signal to the CAM 200.
  • the BPU 400 transmits a second signal to the CAM 200.
  • the BPU 400 transmits the control signal received from the CCU 100 to the CAM 200.
  • the BPU 400 transmits the second signal received from the CCU 100 to the CAM 200.
  • FIG. 14 shows only the configuration related to communication processing among the configurations of the BPU 400.
  • the BPU 400 includes a transmission signal processing unit 410, a video signal processing unit 420, a control signal processing unit 430, a video input / output I / F unit 440, and a control signal I / F unit 450. It has antenna portions 461 and 462 (see FIG. 16).
  • the transmission signal processing unit 410 functions as a communication unit for transmitting and receiving signals.
  • the transmission signal processing unit 410 includes a transmission signal processing unit 411, which is a second communication unit that communicates with the CAM 200, and a transmission signal processing unit 412, which is a first communication unit that communicates with the CCU 100.
  • the transmission signal processing unit 411 and the transmission signal processing unit 412 may be integrated. When the transmission signal processing unit 411 and the transmission signal processing unit 412 will be described without distinction, they will be referred to as the transmission signal processing unit 410.
  • the transmission signal processing unit 411 functions as a wireless communication unit that performs wireless communication with the camera that captures images.
  • the transmission signal processing unit 411 is realized by, for example, a NIC, a communication circuit, or the like.
  • the transmission signal processing unit 411 transmits and receives signals (information) to and from the CAM 200 by wireless communication.
  • the transmission signal processing unit 411 receives a signal from the CAM 200.
  • the transmission signal processing unit 411 receives a video (signal) from the CAM 200.
  • the transmission signal processing unit 411 controls communication.
  • the transmission signal processing unit 411 controls communication with other devices such as the CAM 200.
  • the transmission signal processing unit 411 controls communication between external information processing devices.
  • the transmission signal processing unit 411 controls communication with the CAM 200.
  • the transmission signal processing unit 411 transmits the signal (information) received from the CCU 100 by the transmission signal processing unit 412 to the CAM 200.
  • the transmission signal processing unit 412 functions as a wireless communication unit that performs wireless communication with the CCU 100.
  • the transmission signal processing unit 412 is realized by, for example, a NIC or a communication circuit.
  • the transmission signal processing unit 412 transmits and receives signals (information) to and from the CCU 100 by wireless communication or wired communication.
  • the transmission signal processing unit 412 receives a signal from the CCU 100.
  • the transmission signal processing unit 412 receives a video (signal) from the CCU 100.
  • the transmission signal processing unit 412 controls communication.
  • the transmission signal processing unit 412 controls communication with other devices such as the CCU 100.
  • the transmission signal processing unit 412 controls communication between external information processing devices.
  • the transmission signal processing unit 412 controls communication with the CCU 100.
  • the transmission signal processing unit 412 transmits the signal (information) received from the CAM 200 by the transmission signal processing unit 411 to the CCU 100.
  • the transmission signal processing unit 410 may be connected to a predetermined network by wire or wirelessly, and may transmit / receive information to / from another device or the like via the predetermined network.
  • the BPU 400 may have a connector portion used for a wired connection with the camera.
  • the BPU 400 is connected to the camera by wire by connecting a camera cable or the like connected to the camera to the connector portion.
  • the transmission signal processing unit 410 controls communication with the camera connected by a camera cable or the like via the connector unit.
  • the camera cable referred to here may be various cables such as an optical composite cable, an optical fiber cable, and a twisted pair cable.
  • the BPU400 has a storage unit.
  • the storage unit is realized by, for example, a semiconductor memory element such as a RAM or a flash memory, or a storage device such as a hard disk or an optical disk.
  • the storage unit stores various types of information.
  • the storage unit stores various types of information used for signal processing.
  • the video signal processing unit 420 is realized by, for example, a CPU, an MPU, or the like executing a program stored inside the BPU 400 (for example, a signal processing program related to video) using a RAM or the like as a work area. Further, the video signal processing unit 420 may be realized by an integrated circuit such as an ASIC or FPGA.
  • the video signal processing unit 420 performs various signal processing.
  • the video signal processing unit 420 performs signal processing related to video.
  • the video signal processing unit 420 functions as a signal processing unit that performs signal processing related to the video captured by the camera.
  • the video signal processing unit 420 executes signal processing related to video according to the control signal.
  • the video signal processing unit 420 performs video signal processing (image processing) on the signal received by the transmission signal processing unit 410.
  • the video signal processing unit 420 executes various types of video signal processing.
  • the video signal processing unit 420 performs processing related to color adjustment.
  • the video signal processing unit 420 performs processing related to demosaic.
  • the video signal processing unit 420 performs processing related to noise removal.
  • the video signal processing unit 420 performs processing related to gamma correction.
  • the video signal processing unit 420 executes various video signal processing not limited to the above.
  • the video signal processing unit 420 may perform a part of the video signal processing performed by the CCU 100 (video signal processing unit 120) or the CAM 200 (video signal processing unit 220).
  • the control signal processing unit 430 is realized by, for example, a CPU, an MPU, or the like executing a program stored inside the BPU 400 (for example, a signal processing program related to control) using a RAM or the like as a work area. Further, the control signal processing unit 430 may be realized by an integrated circuit such as an ASIC or FPGA.
  • the control signal processing unit 430 performs signal processing related to control.
  • the control signal processing unit 430 performs signal processing related to the control of the CAM 200.
  • the control signal processing unit 430 performs signal processing related to the control of the BPU 400. Further, the control signal processing unit 430 performs signal processing related to camera control.
  • the control signal processing unit 430 generates a control signal (control information) for controlling the camera.
  • the control signal processing unit 430 performs signal processing related to the control of the CAM 200.
  • the control signal processing unit 430 generates a control signal for controlling the CAM 200.
  • the control signal processing unit 430 generates a signal for a command that controls the camera.
  • the control signal processing unit 430 generates a control signal for adjusting the aperture of the camera.
  • the control signal processing unit 430 controls the CAM 200 by transmitting a control signal to the CAM 200 via the transmission signal processing unit 410.
  • the control signal processing unit 430 controls the camera by transmitting a control signal to the camera via the transmission signal processing unit 410.
  • the control signal processing unit 430 outputs a control signal to the CAM 200 via the transmission signal processing unit 410.
  • the control signal processing unit 430 outputs the control signal received from the CCU 100 to the CAM 200.
  • control signal processing unit 430 executes various control signal processings, not limited to the above.
  • the control signal processing unit 430 may perform a part of the control signal processing performed by the CCU 100 (video signal processing unit 120) or the CAM 200 (control signal processing unit 230).
  • control signal processing unit 430 may be integrated with the video signal processing unit 420.
  • the video signal processing unit 420 and the control signal processing unit 430 may be realized by the same processor.
  • the video input / output I / F unit 440 has a function as an input / output interface for video.
  • the video input / output I / F unit 440 is an interface for connecting the BPU 400 and another information processing device.
  • the video input / output I / F unit 440 has the same function as the video input / output I / F unit 140.
  • the control signal I / F unit 450 has a function as an interface for the control signal.
  • the control signal I / F unit 450 is an interface for connecting the BPU 400 and another information processing device.
  • the control signal I / F unit 450 has the same function as the control signal I / F unit 150.
  • Antenna units 461 and 462 have a function of transmitting and receiving radio waves.
  • the antenna units 461 and 462 radiate the signal output by the transmission signal processing unit 410 into space as radio waves. Further, the antenna units 461 and 462 convert the radio waves in the space into signals and output the signals to the transmission signal processing unit 410.
  • the arrangement of the antenna portions 461 and 462 will be described later.
  • FIG. 15 is a diagram showing an example of communication processing according to the fifth embodiment of the present disclosure. Further, FIG. 15 is a diagram showing a configuration example of the camera system 2 according to the fifth embodiment of the present disclosure. The communication process according to the fifth embodiment of the present disclosure is realized by the camera system 2 shown in FIG.
  • the camera system 2 is a system including a CCU 100, a CAM 200, and a BPU 400. As shown in FIG. 15, the camera system 2 includes a CCU 100, a plurality of CAM 200s, and a BPU 400. In the example of FIG. 15, only three CAM200-1, CAM200-2, and CAM200-3 are shown, but the camera system 2 may include four or more CAM200. As described above, the number of cameras (CAM200) included in the camera system 2 is not limited to the three shown in FIG. 15, and may be determined by, for example, the number of connectable cameras according to the radio band or the like.
  • Each CAM 200 takes an image. Each CAM 200 transmits the captured image (main line image) to the BPU 400. Each CAM 200 transmits a first signal (main line signal) to the BPU 400 by the first wireless communication shown by the dotted line in FIG. Further, each CAM 200 and the BPU 400 communicate with a signal other than the first signal (second signal) by the second wireless communication. In this way, each CAM 200 and BPU 400 transmit and receive a signal (second signal) other than the signal of the main line image by the second wireless communication. The CAM 200 and the BPU 400 transmit and receive a second signal by the second wireless communication shown by the alternate long and short dash line in FIG.
  • the second signal is communicated between the CAMs 200 by the second wireless communication.
  • the camera system 2 is a system in which the CAMs 200 are wirelessly connected to each other to form a mesh network.
  • each of the CAM 200 transmits and receives a second signal to and from the other CAM 200 by the second wireless communication indicated by the alternate long and short dash line.
  • the first wireless communication for communicating mainline video is wideband, high reliability, and low delay wireless communication.
  • the first radio communication is at least broader than the second radio communication, more reliable than the second radio communication, or less delayed than the second radio communication. It is a communication that satisfies one of them.
  • the communication between the BPU 400 and the CAM 200 is set to wireless communication, and the first wireless communication for communicating the main line image and the second wireless communication for communicating other information are used. Communicate.
  • the camera system 2 can improve the degree of freedom in installing the camera.
  • the BPU 400 communicates with the CCU 100.
  • the BPU 400 communicates various signals (information) such as a first signal and a second signal with the CCU 100.
  • the BPU 400 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100 by the communication CM 41 in FIG.
  • the BPU 400 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100 by a communication CM 41 which is a wireless communication.
  • the BPU 400 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100 by a communication CM 41 which is a wired communication.
  • the antenna of the BPU 400 which is a signal processing device, may be arranged in various arrangements.
  • the arrangement of the antennas of the BPU 400 may be the same as the arrangement of the antennas of the CCU 100 shown in FIGS. 4 to 6.
  • FIG. 16 is a diagram showing an example of antenna arrangement of the signal processing device.
  • the BPU 400 may be used in a predetermined position or may be portable.
  • the antenna portion 461 of the BPU 400 is arranged on the front side of the BPU 400.
  • the antenna portion 461 of the BPU 400 is arranged on the front FF side of the main body portion 401 of the BPU 400.
  • the antenna unit 461 may be an antenna used for connection with the CAM 200.
  • the antenna unit 461 is used for communication with the CAM 200 by the transmission signal processing unit 411.
  • the main body 401 of the CCU 100 includes a transmission signal processing unit 411, a transmission signal processing unit 412, a video signal processing unit 420, a control signal processing unit 430, a video input / output I / F unit 440, a control signal I / F unit 450, and a storage unit.
  • the configuration (processor, memory, etc.) that realizes the unit is a housing (case) that is housed.
  • the antenna portion 461 of the BPU 400 is arranged on the front FF side which is arranged on the front side of the shelf or the like when the BPU 400 is stored in the shelf or the like.
  • the antenna portion 461 of the BPU 400 is arranged on the front FF side which is arranged so as to face the front of the shelf when the BPU 400 is stored in a shelf or the like.
  • the antenna portion 462 of the BPU 400 is arranged on the rear side of the BPU 400.
  • the antenna portion 462 of the BPU 400 is arranged on the rear RF side of the main body portion 401 of the BPU 400.
  • the antenna unit 462 may be an antenna used for connection with the CCU 100.
  • the antenna unit 462 is used for communication with the CCU 100 by the transmission signal processing unit 412.
  • the antenna portion 462 of the BPU 400 is arranged on the rear surface RF side which is arranged on the rear surface side of the shelf or the like when the BPU 400 is stored in the shelf or the like.
  • the antenna portion 462 of the BPU 400 is arranged on the rear RF side, which is arranged so as to face the rear of the shelf when the BPU 400 is stored in a shelf or the like.
  • the system configuration and communication mode of the camera system including the BPU are not limited to the fifth embodiment described above, and may be various system configurations and communication modes. This point will be described below.
  • the case where the BPU 400 and the CAM 200 communicate directly with each other is shown, but the communication mode may be via another device (equipment).
  • the camera system 2A in which the BPU 400 and the CAM 200 communicate with each other via the base station is shown. The same points as in the fifth embodiment will be omitted as appropriate.
  • FIG. 17 is a diagram showing an example of a camera system and communication processing according to the sixth embodiment of the present disclosure.
  • the configuration of the camera system 2A shown in FIG. 17 will be described.
  • the camera system 2A includes a CCU 100, a plurality of CAM 200s, and a BPU 400.
  • FIG. 17 shows a case where a wireless base station is interposed between the CAM 200 and the BPU 400.
  • the first wireless communication is performed via the base station 300-1, which is the first base station.
  • the first wireless communication between the CAM 200 and the BPU 400 is performed via the base station 300-1, which is the first base station.
  • the second wireless communication is performed via the second base station, the base station 300-2.
  • the second wireless communication between the CAM 200 and the BPU 400 is performed via the second base station, the base station 300-2.
  • the BPU 400 communicates with the CCU 100.
  • the BPU 400 communicates various signals (information) such as a first signal and a second signal with the CCU 100.
  • the BPU 400 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100 by the communication CM 51 in FIG.
  • the system configuration using one BPU 400 is shown, but the number of BPU 400s may be plural.
  • the camera system 2B including a plurality of BPU 400s is shown. The same points as those in the fifth embodiment and the sixth embodiment will be omitted as appropriate.
  • FIG. 18 is a diagram showing an example of a camera system and communication processing according to the seventh embodiment of the present disclosure.
  • the camera system 2B includes a plurality of 100s, a plurality of CAMs 200, and a plurality of BPUs 400.
  • CCU100-1 to CCU100-3 and the like are described without particular distinction, they are described as CCU100.
  • BPU400-1 to BPU400-3 and the like are described without particular distinction, they are described as BPU400.
  • the camera system 2B shown in FIG. 18 shows a configuration in which one CAM 200 is connected to one BPU 400, that is, a configuration in which the CAM and the BPU are connected at a ratio of 1: 1.
  • the BPU 400 according to the seventh embodiment is different from the BPU 400 according to the fifth embodiment and the BPU 400 according to the sixth embodiment in that it communicates with one CAM 200.
  • BPU400-1 is wirelessly connected to CAM200-1.
  • the CAM200-1 transmits the main line video signal (first signal) to the BPU400-1 by the first wireless communication.
  • the BPU400-1 receives the first signal from the CAM200-1 by the first wireless communication.
  • the CAM200-1 transmits a signal other than the first signal (second signal) to the BPU400-1 by the second wireless communication.
  • the BPU400-1 receives the second signal from the CAM200-1 by the second wireless communication.
  • BPU400-1 communicates with CCU100-1.
  • the BPU400-1 communicates various signals (information) such as a first signal and a second signal with the CCU100-1.
  • the 400-1 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100-1 by the communication CM 61 in FIG.
  • the BPU400-1 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU100-1 by a communication CM61 which is a wireless communication.
  • the BPU400-1 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU100-1 by a communication CM61 which is a wired communication.
  • the BPU400-2 is wirelessly connected to the CAM200-2.
  • the CAM200-2 transmits the main line video signal (first signal) to the BPU400-2 by the first wireless communication.
  • the BPU400-2 receives the first signal from the CAM200-2 by the first wireless communication.
  • the CAM 200-2 transmits a signal (second signal) other than the first signal to the BPU 400-2 by the second wireless communication.
  • the BPU400-2 receives the second signal from the CAM200-2 by the second wireless communication.
  • BPU400-2 communicates with CCU100-2.
  • the BPU400-2 communicates various signals (information) such as a first signal and a second signal with the CCU100-2.
  • the 400-2 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100-2 by the communication CM 62 in FIG.
  • the BPU 400-2 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100-2 by a communication CM62 which is a wireless communication or a wired communication.
  • the BPU400-3 is wirelessly connected to the CAM200-3.
  • the CAM200-3 transmits the main line video signal (first signal) to the BPU400-3 by the first wireless communication.
  • the BPU400-3 receives the first signal from the CAM200-3 by the first wireless communication.
  • the CAM 200-3 transmits a signal (second signal) other than the first signal to the BPU 400-3 by the second wireless communication.
  • the BPU400-3 receives the second signal from the CAM200-3 by the second wireless communication.
  • BPU400-3 communicates with CCU100-3.
  • the BPU400-3 communicates various signals (information) such as a first signal and a second signal with the CCU100-3.
  • the 400-3 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100-3 by the communication CM 63 in FIG.
  • the BPU 400-3 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100-3 by a communication CM63 which is a wireless communication or a wired communication.
  • N N in which each of the plurality of CCU 100s is associated with the plurality of BPU 400s is shown, but one CCU 100 may be associated with the plurality of BPU 400s.
  • Eighth embodiment shows a camera system 2C including one CCU 100 and a plurality of BPU 400s. The same points as in the seventh embodiment will be omitted as appropriate.
  • FIG. 19 is a diagram showing an example of a camera system and communication processing according to the eighth embodiment of the present disclosure.
  • the camera system 2C includes a CCU 100, a plurality of CAM 200s, and a plurality of BPU 400s.
  • BPU400-1 to BPU400-3 and the like are described without particular distinction, they are described as BPU400.
  • the camera system 2C shown in FIG. 19 shows a configuration in which one CCU 100 is connected to a plurality of BPU 400s, that is, a configuration in which the BPU and the CCU are connected at N: 1.
  • the camera system 2C according to the eighth embodiment is different from the camera system 2B according to the seventh embodiment in that one CCU 100 communicates with a plurality of BPU 400s.
  • BPU400-1 communicates with CCU100.
  • the BPU400-1 communicates various signals (information) such as a first signal and a second signal with the CCU100.
  • the 400-1 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100 by the communication CM71 in FIG.
  • the BPU 400-1 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100 by a communication CM 71 which is a wireless communication or a wired communication.
  • BPU400-2 communicates with CCU100.
  • the BPU400-2 communicates various signals (information) such as a first signal and a second signal with the CCU100.
  • the 400-2 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100 by the communication CM 72 in FIG.
  • the BPU 400-2 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100 by a communication CM 72 which is a wireless communication or a wired communication.
  • BPU400-3 communicates with CCU100.
  • the BPU 400-3 communicates various signals (information) such as a first signal and a second signal with the CCU 100.
  • the 400-3 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100 by the communication CM73 in FIG.
  • the BPU 400-3 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100 by a communication CM73 which is a wireless communication or a wired communication.
  • N N in which each of the plurality of CCU 100s is associated with the plurality of BPUs 400 is shown, but a plurality of CCUs 100 may be associated with one BPU 400.
  • a ninth embodiment shows a camera system 2C including a plurality of CCU 100s and one BPU 400. The same points as in the seventh embodiment will be omitted as appropriate.
  • FIG. 20 is a diagram showing an example of a camera system and communication processing according to a ninth embodiment of the present disclosure.
  • the camera system 2D includes a plurality of CCU 100s, a plurality of CAM 200s, and a BPU 400.
  • CCU100-1 to CCU100-3 and the like are described without particular distinction, they are described as CCU100.
  • a configuration in which a plurality of CAM200 units and a plurality of CCU100s are connected to one BPU400, that is, a configuration in which the CAN and CCU and the BPU are connected at N: 1 is shown.
  • the camera system 2D according to the ninth embodiment is different from the camera system 2B according to the seventh embodiment in that one BPU 400 communicates with a plurality of CAM 200s and a plurality of CCU 100s.
  • the BPU 400 is wirelessly connected to the CAM 200-1.
  • the CAM200-1 transmits the main line video signal (first signal) to the BPU 400 by the first wireless communication.
  • the BPU 400 receives the first signal from the CAM 200-1 by the first wireless communication.
  • the CAM200-1 transmits a signal other than the first signal (second signal) to the BPU 400 by the second wireless communication.
  • the BPU 400 receives the second signal from the CAM 200-1 by the second wireless communication.
  • BPU400 communicates with CCU100-1.
  • the BPU 400 communicates various signals (information) such as a first signal and a second signal with the CCU 100-1.
  • the 400-1 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU100-1 by the communication CM81 in FIG.
  • the BPU 400 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU100-1 by a communication CM81 which is a wireless communication or a wired communication.
  • the BPU 400 is wirelessly connected to the CAM 200-2.
  • the CAM 200-2 transmits the main line video signal (first signal) to the BPU 400 by the first wireless communication.
  • the BPU 400 receives the first signal from the CAM 200-2 by the first wireless communication.
  • the CAM 200-2 transmits a signal (second signal) other than the first signal to the BPU 400 by the second wireless communication.
  • the BPU 400 receives the second signal from the CAM 200-2 by the second wireless communication.
  • BPU400 communicates with CCU100-2.
  • the BPU 400 communicates various signals (information) such as a first signal and a second signal with the CCU 100-2.
  • the 400-2 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100-2 by the communication CM 82 in FIG.
  • the BPU 400 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100-2 by a communication CM 82 which is a wireless communication or a wired communication.
  • the BPU 400 is wirelessly connected to the CAM 200-3.
  • the CAM 200-3 transmits the main line video signal (first signal) to the BPU 400 by the first wireless communication.
  • the BPU 400 receives the first signal from the CAM 200-3 by the first wireless communication.
  • the CAM 200-3 transmits a signal (second signal) other than the first signal to the BPU 400 by the second wireless communication.
  • the BPU 400 receives the second signal from the CAM 200-3 by the second wireless communication.
  • BPU400 communicates with CCU100-3.
  • the BPU 400 communicates various signals (information) such as a first signal and a second signal with the CCU 100-3.
  • the 400-3 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100-3 by the communication CM83 in FIG.
  • the BPU 400 transmits and receives various signals (information) such as a first signal and a second signal to and from the CCU 100-3 by a communication CM83 which is a wireless communication or a wired communication.
  • the camera system may include a signal processing device having the functions of CCU 100 and BPU 400.
  • the camera system may consist of CCU100 and CAM200 having the function of BPU400.
  • each component of each device shown in the figure is a functional concept, and does not necessarily have to be physically configured as shown in the figure. That is, the specific form of distribution / integration of each device is not limited to the one shown in the figure, and all or part of the device is functionally or physically dispersed / physically distributed in any unit according to various loads and usage conditions. Can be integrated and configured.
  • the camera system (camera system 1, 1A, 1B, 1C, 2A, 2B, 2C, 2D in the embodiment) according to the present disclosure includes a camera (CAM200 in the embodiment) and a signal processing device (embodiment).
  • the camera has a wireless communication function and captures images.
  • the signal processing device has a wireless communication function and performs signal processing on the image captured by the camera.
  • the camera and the signal processing device are connected wirelessly.
  • the camera by wirelessly connecting the camera and the signal processing device, the camera can be installed without being affected by the length of the cable or the like as in the case of a wired connection.
  • the degree of freedom of installation can be improved.
  • the camera system can improve the degree of freedom in installing the camera, eliminate the need for another person other than the cameraman to perform processing related to the cable, and improve the convenience of the user who uses the system.
  • the camera and the signal processing device communicate the first signal, which is a signal of the image captured by the camera by the first wireless communication.
  • the camera and the signal processing device communicate a second signal other than the first signal by a second wireless communication different from the first wireless communication.
  • the camera system can improve the degree of freedom in installing the camera while ensuring stable video communication by separating the video communication from the other communication.
  • the camera system can secure a stable connection regardless of the wireless condition of the main line image.
  • At least one of the first wireless communication has a wider band than the second wireless communication, is more reliable than the second wireless communication, or has a lower delay than the second wireless communication. It is a communication that satisfies one of them.
  • the camera system communicates the video by the first wireless communication that satisfies at least one of wideband, high reliability, and low delay than the second wireless communication, so that the video by the first wireless communication can be obtained. It is possible to perform communication with higher quality.
  • the camera system can secure a stable connection regardless of the radio condition of the second signal such as the synchronization signal.
  • the second signal is a signal related to imaging by the camera.
  • the camera system can separate video communication and other communication by communicating signals related to imaging by the camera from the second wireless communication, and in an appropriate communication mode according to the communication content. Communication can be provided.
  • the second signal is a signal used to control the camera.
  • the camera system can provide communication in an appropriate communication mode according to the communication content by communicating the signal used for controlling the camera from the second wireless communication.
  • the second signal is a synchronization signal with another camera or a command signal for controlling the camera.
  • the camera system provides communication in an appropriate communication mode according to the communication content by communicating a synchronization signal with another camera or a signal of a command for controlling the camera from the second wireless communication. can do.
  • the second signal is a signal used for information transmission between users who use the camera system.
  • the camera system provides communication in an appropriate communication mode according to the communication content by communicating signals used for information transmission between users using the camera system from the second wireless communication. Can be done.
  • the second signal is a RET image signal or an INCOM signal.
  • the camera system can provide communication in an appropriate communication mode according to the communication content by communicating the RET image signal or the INCOM signal from the second wireless communication.
  • the second signal is a signal used for transmitting information to the person to be imaged by the camera.
  • the camera system can provide communication in an appropriate communication mode according to the communication content by communicating the signal used for information transmission to the image pickup target by the camera from the second wireless communication. can.
  • the second signal is a TALLY signal or a Prompter signal.
  • the camera system can provide communication in an appropriate communication mode according to the communication content by communicating the TALLY signal or the Prompter signal from the second wireless communication.
  • the cameras are multiple cameras.
  • the signal processing device and the plurality of cameras communicate with each other by the first wireless communication and the second wireless communication.
  • the camera system can communicate between the plurality of cameras and the signal processing device by the first wireless communication and the second wireless communication. Therefore, the camera system can communicate wirelessly even when there are a plurality of cameras, and the degree of freedom in installing the cameras can be improved.
  • the camera system can reduce the operating cost in the field.
  • the camera system can simplify the system construction.
  • each of the plurality of cameras communicates by a second wireless communication.
  • the camera system can communicate between the plurality of cameras by the second wireless communication. Therefore, the camera system enables communication of the second signal between the cameras, and can provide communication in an appropriate communication mode according to the communication content.
  • the camera system can secure a stable connection for a control signal (second signal) such as a synchronization signal. Further, the camera system can enable the RET image and the intercom signal (second signal) to be exchanged only between the cameras, not via the signal processing device.
  • the plurality of cameras includes one master camera and a slave camera.
  • the signal processing device transmits a control signal common to a plurality of cameras to one master camera.
  • One master camera sends a control signal to the slave camera.
  • the camera system can appropriately control each camera while suppressing an increase in the communication load between the camera and the signal processing device. Therefore, the camera system can provide communication in an appropriate communication mode according to the communication content even when there are a plurality of cameras.
  • the camera system can improve the efficiency of wireless band utilization.
  • the signal processing device identifies the manufacturer of the camera when it is wirelessly connected to the camera.
  • the camera system can wirelessly connect only between the camera of the manufacturer corresponding to the signal processing device and the signal processing device, and can suppress erroneous connection with the camera or signal processing device of another company. can.
  • the camera system can simplify the polling process such as checking the status of the wireless connection, and can suppress the communication load.
  • the camera system can reduce the amount of data during polling.
  • the camera system can shorten the time until the system is restored.
  • the signal processing device includes a main body unit (main body unit 101 in the embodiment) that performs signal processing, and an antenna unit (antenna unit 160 in the embodiment) that is separated from the main body unit and performs wireless communication with the camera. ..
  • the camera system can improve the degree of freedom in installing the antenna of the signal processing device, and can improve the degree of freedom in installing the camera.
  • the camera system can optimize the antenna position and improve the convenience of the user who uses the system.
  • the signal processing device includes a connector unit used for a wired connection with another camera that communicates by wire.
  • the camera system can communicate between the camera and the signal processing device, which can communicate only by wire, and the degree of freedom in installing the camera can be improved.
  • the camera system can maintain connection compatibility with non-wireless cameras.
  • the signal processing apparatus (CCU100, BPU400 in the embodiment) according to the present disclosure includes a wireless communication unit (transmission signal processing unit 110 in the embodiment) and a signal processing unit (video signal processing unit 120 in the embodiment). And.
  • the wireless communication unit performs wireless communication with the camera that captures the image.
  • the signal processing unit performs signal processing on the image captured by the camera.
  • the signal processing device can wirelessly communicate with the camera, so that the degree of freedom in installing the camera can be improved. Therefore, the signal processing device improves the degree of freedom in the installation of the camera in the camera system by using the signal processing device, and eliminates the need for another person other than the cameraman to perform processing related to the cable, which is convenient for the user who uses the system. Can be improved.
  • the camera (CAM200 in the embodiment) includes an image pickup unit (image sensor 250 in the embodiment) and a wireless communication unit (transmission signal processing unit 210 in the embodiment).
  • the imaging unit captures images.
  • the wireless communication unit performs wireless communication between signal processing devices that perform signal processing related to video.
  • the camera according to the present disclosure can wirelessly communicate with the signal processing device, so that the degree of freedom in installing the camera can be improved. Therefore, the camera uses a camera to improve the degree of freedom in the installation of the camera in the camera system, eliminates the need for another person other than the cameraman to process the cable, and improves the convenience of the user who uses the system. can.
  • FIG. 22 is a hardware configuration diagram showing an example of a computer 1000 that realizes the functions of the signal processing device.
  • the computer 1000 includes a CPU 1100, a RAM 1200, a ROM (Read Only Memory) 1300, an HDD (Hard Disk Drive) 1400, a communication interface 1500, and an input / output interface 1600. Each part of the computer 1000 is connected by a bus 1050.
  • the CPU 1100 operates based on the program stored in the ROM 1300 or the HDD 1400, and controls each part. For example, the CPU 1100 expands the program stored in the ROM 1300 or the HDD 1400 into the RAM 1200 and executes processing corresponding to various programs.
  • the ROM 1300 stores a boot program such as a BIOS (Basic Input Output System) executed by the CPU 1100 when the computer 1000 is started, a program that depends on the hardware of the computer 1000, and the like.
  • BIOS Basic Input Output System
  • the HDD 1400 is a computer-readable recording medium that non-temporarily records a program executed by the CPU 1100 and data used by the program.
  • the HDD 1400 is a recording medium for recording an information processing program such as a signal processing program according to the present disclosure, which is an example of program data 1450.
  • the communication interface 1500 is an interface for the computer 1000 to connect to an external network 1550 (for example, the Internet).
  • the CPU 1100 receives data from another device or transmits data generated by the CPU 1100 to another device via the communication interface 1500.
  • the input / output interface 1600 is an interface for connecting the input / output device 1650 and the computer 1000.
  • the CPU 1100 receives data from an input device such as a keyboard or mouse via the input / output interface 1600. Further, the CPU 1100 transmits data to an output device such as a display, a speaker, or a printer via the input / output interface 1600. Further, the input / output interface 1600 may function as a media interface for reading a program or the like recorded on a predetermined recording medium (media).
  • the media is, for example, an optical recording medium such as DVD (Digital Versatile Disc) or PD (Phase change rewritable Disk), a magneto-optical recording medium such as MO (Magneto-Optical disk), a tape medium, a magnetic recording medium, or a semiconductor memory.
  • an optical recording medium such as DVD (Digital Versatile Disc) or PD (Phase change rewritable Disk)
  • a magneto-optical recording medium such as MO (Magneto-Optical disk)
  • tape medium such as DVD (Digital Versatile Disc) or PD (Phase change rewritable Disk)
  • MO Magneto-optical disk
  • the CPU 1100 of the computer 1000 executes a function of the video signal processing unit 120, the control signal processing unit 130, and the like by executing the information processing program loaded on the RAM 1200.
  • the information processing program according to the present disclosure and the data in the storage unit of the CCU 100 are stored in the HDD 1400.
  • the CPU 1100 reads the program data 1450 from the HDD 1400 and executes the program, but as another example, these programs may be acquired from another device via the external network 1550.
  • the present technology can also have the following configurations.
  • a camera that has a wireless communication function and captures images A signal processing device that has a wireless communication function and processes signals related to images captured by the camera. With A camera system in which the camera and the signal processing device are wirelessly connected.
  • the camera and the signal processing device communicate a first signal, which is a signal of the image captured by the camera, by the first wireless communication.
  • the camera system according to (1) wherein the camera and the signal processing device communicate a second signal other than the first signal by a second wireless communication different from the first wireless communication.
  • the first wireless communication has a wider band than the second wireless communication, is more reliable than the second wireless communication, or has a lower delay than the second wireless communication.
  • the camera system according to (2) which is a communication that satisfies at least one of them.
  • the camera system according to (4), wherein the second signal is a signal used for information transmission between users who use the camera system.
  • the camera system according to (7), wherein the second signal is a RET image signal or an INCOM signal.
  • the camera system according to (4), wherein the second signal is a signal used for transmitting information to a person to be imaged by the camera.
  • the camera system according to (9), wherein the second signal is a TALLY signal or a Prompter signal.
  • the cameras are a plurality of cameras.
  • the plurality of cameras communicate with each other by the second wireless communication.
  • the plurality of cameras include one master camera and a slave camera.
  • the signal processing device transmits a control signal common to the plurality of cameras to the one master camera.
  • the signal processing device is The main body that performs the signal processing and An antenna unit that is separated from the main body unit and wirelessly communicates with the camera.
  • the signal processing device is Connector part used for wired connection with other cameras that communicate by wire, The camera system according to any one of (1) to (16).
  • a camera that has a wireless communication function and captures images A signal processing device that has a wireless communication function and processes signals related to images captured by the camera. Communication method to connect wirelessly.
  • a wireless communication unit that performs wireless communication with the camera that captures images A signal processing unit that performs signal processing related to the image captured by the camera, and A signal processing device equipped with.
  • Camera system 100 CCU (Signal processing device) 101 Main unit 110 Transmission signal processing unit (wireless communication unit) 120 Video signal processing unit (signal processing unit) 130 Control signal processing unit (signal processing unit) 140 Video input / output I / F section 150 Control signal I / F section 160 Antenna section 200 CAM (camera) 210 Transmission signal processing unit (wireless communication unit) 220 Video signal processing unit 230 Control signal processing unit 240 Video input / output I / F unit 250 Image sensor (imaging unit)

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
PCT/JP2021/011046 2020-03-27 2021-03-18 カメラシステム、通信方法、信号処理装置及びカメラ Ceased WO2021193342A1 (ja)

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EP21775020.7A EP4109870A4 (en) 2020-03-27 2021-03-18 Camera system, communication method, signal processing device, and camera
JP2022510034A JP7574844B2 (ja) 2020-03-27 2021-03-18 カメラシステム、通信方法、信号処理装置及びカメラ
CN202180022570.9A CN115299037B (zh) 2020-03-27 2021-03-18 相机系统、通信方法、信号处理设备以及相机
US17/910,232 US12598376B2 (en) 2020-03-27 2021-03-18 Camera system, communication method, signal processing device, and camera for communicating via different types of wireless communication

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US20230232097A1 (en) 2023-07-20
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