Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/76—Television signal recording
  • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
  • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
  • H04N5/772—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera the recording apparatus and the television camera being placed in the same enclosure
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
  • H04N21/21—Server components or server architectures
  • H04N21/218—Source of audio or video content, e.g. local disk arrays
  • H04N21/2187—Live feed
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
  • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
  • H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
  • H04N21/23106—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving caching operations
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
  • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
  • H04N21/4334—Recording operations
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/47—End-user applications
  • H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
  • H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
  • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
  • H04N21/633—Control signals issued by server directed to the network components or client
  • H04N21/6338—Control signals issued by server directed to the network components or client directed to network
• • 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
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N7/00—Television systems
  • H04N7/16—Analogue secrecy systems; Analogue subscription systems
  • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
  • H04N7/17309—Transmission or handling of upstream communications
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/76—Television signal recording
  • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
  • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/76—Television signal recording
  • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
  • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/76—Television signal recording
  • H04N5/907—Television signal recording using static stores, e.g. storage tubes or semiconductor memories

Definitions

• Network camera Network camera, network camera system, and monitoring method
• the present invention relates to a network camera capable of distributing images to a plurality of distribution destinations via a communication line.
• the present invention relates to a network camera connected to a communication line, a network camera system having a plurality of distribution destinations to which images are distributed by the network camera, and a monitoring method used in the network camera system.
• a conventional network camera image data is backed up on the camera side when the network line is temporarily unavailable in the FTP client Z server system (for example, (See Patent Document 1).
• a conventional network camera is connected via a network to one network camera that is a client and one FTP server to which the network camera can deliver images.
• Patent Document 1 Japanese Patent Laid-Open No. 2005-026866
• the network camera serves as a client to monitor the network camera images. It is conceivable to have a monitoring device, a recording device for recording image data of the network camera, and the like.
• the present invention has been made in view of the above circumstances, and is a network camera, a network camera system, and a monitor capable of reliably delivering an image to a designated delivery destination It aims to provide a method.
• the network camera of the present invention is a network camera capable of distributing images to a plurality of distribution destinations via a communication line, and includes an imaging unit that captures images, A transmission unit that distributes the captured image to the distribution destination that requests distribution of the captured image captured by the unit; and the transmission unit transmits the captured image to a predetermined distribution destination among the plurality of distribution destinations.
• a transmission monitoring unit that monitors whether or not the distribution has been performed; and a storage unit that accumulates the captured image when distribution to the designated distribution destination by the transmission unit monitored by the transmission monitoring unit is interrupted.
• the network camera of the present invention has a configuration in which the storage unit stops the storage of the captured image when the designated distribution is restored.
• the amount of data stored in the storage means such as a memory can be minimized.
• the network camera of the present invention has accumulation start information including time until distribution to the designated distribution destination is interrupted and power is accumulated by the accumulation unit, and the accumulation unit includes: Based on the accumulation start information, the accumulation of the captured image is started when the distribution to the designated distribution destination is interrupted.
• an image input to the network camera can be stored a specific time after the image distribution is interrupted. it can.
• the network camera of the present invention has storage interval information including a time interval for storing the captured image by the storage unit, and the storage unit is designated based on the storage interval information. This is a configuration for determining a time interval for accumulating the captured images when distribution to a distribution destination is interrupted.
• the network camera of the present invention includes a storage monitoring unit that notifies the distribution destination that the captured image is stored by the storage unit.
• the image distribution destination can recognize that the stored image exists in the memory, and can acquire the stored image as necessary.
• the network camera of the present invention has recording time information including a recording period indicating a monitoring time zone for monitoring the distribution of the captured image to the specified distribution destination by the transmission monitoring unit,
• the storage unit is configured to determine a period during which the captured image is stored when distribution to the designated distribution destination is interrupted based on the recording time information.
• the image is stored in the memory only when the image input to the network camera in the specified time zone cannot be delivered to the specified delivery destination according to the instruction from the network camera. Can do.
• the network camera of the present invention has recording interval information including a recording interval indicating a time interval for monitoring the delivery of the captured image to the designated delivery destination by the transmission monitoring unit, Based on the recording interval information, the time interval for storing the captured image when the distribution to the designated distribution destination is interrupted is determined.
• an image input to the network camera is stored in the memory only when the image input to the network camera cannot be delivered to the designated delivery destination at the designated time interval in accordance with an instruction from the network camera. be able to.
• the network camera system of the present invention is a network camera system having a network camera connected to a communication line and a plurality of distribution destinations to which images are distributed by the network camera.
• the network camera includes: An imaging unit that captures an image; a transmission unit that distributes the captured image captured by the imaging unit to the distribution destination; and the transmission unit that transmits the captured image to a predetermined distribution destination among the plurality of distribution destinations.
• the transmission unit monitored by the transmission monitoring unit and the transmission unit monitored by the transmission monitoring unit is interrupted, the captured image is stored.
• the distribution destination is designated by the transmission unit.
• the receiving unit receives a captured image distributed to a predetermined distribution destination.
• the monitoring method of the present invention is a monitoring method used in a network camera system having a network camera connected to a communication line and a plurality of distribution destinations to which images are distributed by the network camera.
• the transmission monitoring step in which it is monitored whether or not the transmission in the transmission step has been performed earlier, and the transmission to the designated distribution destination in the transmission step in the transmission monitoring step is interrupted.
• the captured image distributed to the designated distribution destination is received in the accumulation step in which the image is accumulated and the transmission step. It is a method that have a trust and step.
• the present invention can provide a network camera, a network camera system, and a monitoring method capable of reliably delivering an image to a designated delivery destination.
• FIG. 1 is a block diagram of a network camera system in an embodiment of the present invention.
• FIG. 2 Image distribution monitoring sequence diagram in the case of client pull of the network camera system in the embodiment of the present invention
• FIG. 3 is an image distribution monitoring sequence diagram in the case of server push in the network camera system in the embodiment of the present invention.
• FIG. 4 Storage image presence notification and stored image acquisition sequence diagram of the network camera system in the embodiment of the present invention.
• FIG. 5 is a recording sequence diagram based on the recording schedule of the network camera system in the embodiment of the present invention.
• FIG. 6 shows an example of a stored image list in the embodiment of the present invention.
• FIG. 7 shows an example of a schedule table in the embodiment of the present invention. Explanation of symbols
• FIG. 1 is a block diagram of a network camera system 100 in the embodiment of the present invention.
• the network camera system 100 includes a network camera 110, a PC (Personal Computer) 120, and a network 130.
• the network camera 110 includes an imaging unit 111, a signal processing unit 112, an encoding unit 113, a temporary memory 114, a transmission / reception unit 115, an image transmission monitoring unit 116, a storage processing unit 117, a storage capacity monitoring unit 118, and a storage memory 119.
• the PC 120 includes an image receiving unit 121, a stored image acquisition request unit 122, and a stored image list acquisition unit 123.
• the network 130 is an example of a communication line.
• the network camera 110 is It is an example of a network camera.
• the PC 120 is a receiving device that is an example of a distribution destination.
• the imaging unit 111 is an example of an imaging unit.
• the transmission / reception unit 115 is an example of a transmission unit.
• the image transmission monitoring unit 116 is an example of a transmission monitoring unit.
• the storage memory 119 is an example of a storage unit.
• the storage capacity monitoring unit 118 is an example of a storage monitoring unit.
• the image receiving unit 121 is an example of a receiving unit.
• the network camera 110 and the PC 120 are connected to the network 130.
• the network camera 110 is a camera that can be connected to the network 130.
• the PC 120 is a monitoring PC for browsing image data captured by the network camera 110, a recording device for recording image data, or the like.
• the imaging unit 111 inputs an image signal.
• the signal processing unit 112 performs signal processing on the input image signal.
• the encoding unit 113 performs compression processing on the image signal that has been subjected to signal processing, and temporarily stores it in the temporary memory 114 as image data.
• a schedule table 114a shown in FIG. 7 to be described later showing a weekly schedule of the network camera system 100 is also stored in the temporary memory 114.
• the transmission / reception unit 115 distributes the image data stored in the temporary memory 114 and the stored image list 117a of FIG. 6 to be described later to the PC 120 via the network 130. Further, the transmission / reception unit 115 receives the stored image acquisition request and the stored image list acquisition request transmitted from the PC 120, and temporarily stores them in the temporary memory 114.
• the image transmission monitoring unit 116 monitors the state of image data distribution by the transmission / reception unit 115, and notifies the accumulation processing unit 117 when distribution is interrupted.
• the storage processing unit 117 stores the image data stored in the temporary memory 114 in the storage memory 119 when receiving the notification of interruption of distribution from the image transmission monitoring unit 116.
• the storage processing unit 117 transfers the image data stored in the storage memory 119 to the temporary memory 114 and temporarily stores it in the temporary memory.
• the accumulation processing unit 117 creates an accumulated image list 117a and temporarily stores it in the temporary memory 114.
• the storage capacity monitoring unit 118 monitors the amount of image data stored in the storage memory 119 and notifies the PC 120 via the storage processing unit 117 and the network 130 of the result. As a result, the PC 120 can grasp whether or not a stored image exists.
• Storage memory 119 SD memory card and so on.
• the image reception unit 121 receives image data transmitted from the transmission / reception unit 115 via the network 130. Based on the stored image list 117a acquired by the stored image list acquisition unit 123, the stored image acquisition request unit 122 sends a stored image acquisition request to the network camera 110 via the network 130 in a time zone where the processing load of the PC 120 is light. The transmission / reception unit 115 also acquires the stored image transmitted via the network 130.
• the accumulated image list acquisition unit 123 transmits an accumulated image list acquisition request to the network camera 110 via the network 130, and acquires the accumulated image list 117a transmitted from the transmission / reception unit 115 via the network 130.
• the accumulated image list 117 a is a list having detailed information of accumulated images accumulated in the accumulation memory 119.
• List items include serial number, image generation date / time, destination IP, and camera name.
• An example of the stored image list 117a is shown in FIG.
• serial numbers are sequentially numbered from 1.
• image generation date and time the date and time when the corresponding image is stored in the storage memory 119 is described.
• distribution destination IP the IP address of the monitoring target PC 120 that the image transmission monitoring unit 116 monitored the distribution of the image at the time of image accumulation is described.
• camera name the camera name of the network camera 110 that has stored the corresponding image among the one or more network cameras 110 is described.
• the schedule table 114a shows a schedule for one week of the network camera system 100, and includes a recording start time, a recording end time, a recording interval, and a distribution destination IP as items.
• the schedule table 114a is stored in the temporary memory 114.
• the schedule table 114a may be created on the network camera 110 side, or may be transmitted to the network camera 110 via the network 130 after creation on the PC 120 side.
• An example of the schedule table 114a is shown in FIG.
• the recording start time describes the start time of the recording period indicating the time zone in which the image is accumulated when the image transmission by the transmission / reception unit 115 is interrupted during the monitoring by the image transmission monitoring unit 116. Is done.
• the recording end time describes the end time of the recording period. In the recording interval, a time interval for accumulating images in the accumulation memory 119 is described.
• the IP address of the PC 120 to be monitored, which is monitored by the image transmission monitoring unit 116, is included in the destination IP. Is listed.
• the method of monitoring the distribution of image data is based on the monitoring method (client pull) when PC120 distributes image data by a certain amount based on the image acquisition request at regular intervals!
• a monitoring method server push
• the network camera 130 delivers image data at a time in response to a request.
• FIG. 2 is an image distribution monitoring sequence diagram in the case of the client pull of the network camera system 100 in the embodiment of the present invention.
• the network camera system 100 has a server having one or more network cameras 110, n clients (n is an integer of 1 or more) having one or more PCs 120, and images from the second client. Only the acquisition request will be monitored.
• Each server and each client have the same configuration and function. Any one of the servers is a server 110A, and n clients are a first client 120A, a second client 120B,..., A ⁇ -th client 120 ⁇ .
• an image acquisition request is transmitted from the first client 120A to the server 110A and detected by the server ((step S201), and the image is normally distributed from the server 110A to the first client 120A. (Step S202).
• an image acquisition request is transmitted to the second client 120B server 110A and detected by the server 110A (step S203), and the image is normally distributed from the server 110A to the second client 120B! Step S 204).
• Step S205 Since the image acquisition request from the second client 120A is monitored, the server 110A starts storing images in the storage memory 119 (Step S206).
• the server 110A when the server 110A normally receives the image acquisition request, the ACK (ACK information) is sent to the server 11
• the client It is possible to know that the server 110A has successfully received the image acquisition request.
• the second client 120B After elapse of a predetermined time t determined from the non-detection of the image acquisition request in step S205, the second client 120B transmits the image acquisition request to the server 110A again (step S207). If the image acquisition request in step S207 is not detected within the set time in the server 110A, the image is continuously stored in the storage memory 119 (step S208).
• an image acquisition request is also sent to the second client 120B force to the server 110A, the request is detected by the server 110A (step S209), and the server 110A force is also sent to the second client 120B.
• the image is delivered to !! (Step S210). Since the image acquisition request is normally detected in step S209, the image storage in the storage memory 119 is stopped (step S211).
• Step S211 If the image acquisition request is transmitted from the first client 120A to the server 110A but is not detected by the server 110A within the predetermined set time, the second client 120B Since the image acquisition request from is not monitored, the image is not stored in the storage memory 119! /, (Step S211).
• an image acquisition request is transmitted from the nth client 120 ⁇ to the server 110A and detected by the server 110A (step S213), and the image is normally distributed from the server 110A to the ⁇ th client 120 ⁇ . (Step S 214).
• FIG. 3 is an image distribution monitoring sequence diagram in the case of server push of the network camera system 100 in the embodiment of the present invention.
• the network camera system 100 has a server 11 ⁇ , a first client 120 ⁇ , a second client 120 ⁇ ,..., A ⁇ -th client 120 ⁇ , and monitors only image distribution to the second client.
• Each client has the same configuration and function.
• step S301 when an image distribution start request is transmitted from the first client 120A to the server 110A (step S301), an image is distributed from the server 110A to the first client 120A, and the server 110A Until an image distribution stop request is received from the client 120A, Alternatively, the image distribution is continued until the distributed image is not normally received by the first client 120A (step S302).
• the ACK force client sends the image to the server 11 OA side. Can know that the client has successfully received the image.
• the first client 120A performs monitoring. Since the client is not a target, the image is not stored in the storage memory 119 (step S303).
• an image distribution start request is also transmitted to the server 110A for the second client 120B (step S304), and an image is distributed from the server 110A to the second client 120B.
• the image distribution is continued until the image distribution stop request is received from 120B or until the distributed image is not normally received by the second client 120B (step S305).
• step S306 When the image is being distributed from the second client 120B to the server 110A and the normal reception of the image (such as ACK) is not detected for a predetermined set time or more (step S306), Since the second client 120B is a client to be monitored, accumulation of images in the accumulation memory 119 is started (step S307).
• step S306 the image is redistributed from the server 110A to the second client 120B at predetermined intervals. If the second client 120B cannot receive the detection of the image reception by this re-distribution, the image storage in the storage memory 119 is continued (step S309). In Fig. 3, the illustration is omitted except for the first redistribution. This re-distribution is performed until the second client 120B detects the reception of an image normally or for a predetermined period of time.
• step S310 if the second client 120B normally receives the image (step S310), the storage of the image in the storage memory 119 is stopped (step S311). After that, there is a second client 120B power distribution stop request Distribution of the image is continued until the distributed image is not normally received by the second client 120B (step S312).
• step S313 When the image delivery stop request is transmitted from the second client 120B to the server 110A and the server 110A detects the image delivery stop request, the server 11 OA stops the image delivery (step S313).
• step S314 When an image delivery start request is transmitted from the nth client 120 ⁇ to the server 11OA (step S314), the image is delivered from the server 110A to the nth client 120 ⁇ , and the server 110A is sent to the ⁇ th client. Image distribution is continued until an image distribution stop request is received from 120 ⁇ or until the distributed image is not normally received by the ⁇ th client 120 ⁇ (step S315).
• FIG. 4 is a stored image presence notification and stored image acquisition sequence diagram of the network camera system 100 according to the embodiment of the present invention.
• the network camera system 100 has a server 110, a first client 120 ⁇ , a second client 120 ⁇ , ..., a ⁇ -th client 120 ⁇ , and the second client acquires stored images. Is assumed.
• a stored image list 117a showing details of stored images stored in the server 110A is broadcasted to each client 120A, 120B, ..., 120 ⁇ (step S40 Do). It is performed at fixed time intervals.
• the second client 120B When the second client 120B recognizes the presence of the stored image by receiving the stored image list 117a, the second client 120B transmits a stored image acquisition request to the server 110A in a time zone where the operation load of the second client 120B is light (step S402).
• server 110A receives the stored image acquisition request, server 110A retrieves the stored image from storage memory 119 and distributes the stored image to second client 120B (step S403).
• the amount of stored images that can be delivered at one time is predetermined.
• the stored image that has been transmitted to the second client 120B is deleted from the stored memory 119 (step S404).
• step S405 When distribution of the stored image in response to the stored image acquisition request in step S402 is not detected by the second client 120B (step S405), storage in the second client 120B is performed. Since the transmission of the product image is completed, the stored image that has been scheduled to be transmitted is not deleted (step S406).
• step S401 the power indicating broadcast notification of the stored image list 117a at regular time intervals, for example, the second client 120B sends a stored image list acquisition request to the server 11 OA (step S407).
• the notification of the stored image list 117a may be performed (step S408).
• each time a stored image in the storage memory 119 is generated it is added to the stored image list 117a from each client.
• Various timings such as creating a list of image information stored in the storage memory 119 when a stored image list acquisition request is received, and updating the stored image list 117a at fixed intervals. Can be considered.
• the above is the stored image presence notification and stored image acquisition procedure.
• FIG. 5 is a recording sequence diagram based on the recording schedule of the network camera system 100 according to the embodiment of the present invention.
• the recording schedule from Friday to Saturday as shown in Fig. 7 will be explained in detail.
• the network camera system 100 includes a server 110A, a first client 120A, a second client 120B,..., And an nth client 120 ⁇ .
• the recording start time is 8:30
• the recording end time is 22:00
• the recording interval is 6 seconds
• the distribution destination IP is the first client 120 ⁇ and the second client 120B. Therefore, at 8:30 on Friday, the network camera system 100 starts monitoring the image distribution to the first client 120 ⁇ and the second client 120 ⁇ .
• Step S501 when an image acquisition request is transmitted from the second client 120B to the server 110A (step S501), the server 110A distributes the image to the second client 120 ⁇ ⁇ ⁇ ⁇ ⁇ . (Step S502). Image acquisition requests are sent at fixed time intervals. After the image acquisition request is transmitted to the server 110A from the second client 120B (step S501), the second client 120B cannot detect the image distribution even after the set time has elapsed (step S503). ), Storing images in the storage memory 119 Start (step S504).
• step S505 Even if an image acquisition request is transmitted from the first client 120A to the server 11 OA (step S505), and the server 110A can distribute the image to the first client 120B (step S506). ), When image distribution to the second client 120A is interrupted, image storage in the storage memory 119 is continued (step S507). Since the image is stored in the storage memory 119 at every recording interval, the image is stored every 6 seconds here.
• An image acquisition request is transmitted from the second client 120B to the server 110A (step S508), the second client 120B detects delivery of the stored image (step S509), and the image acquisition request is
• the first client 120A detects the distribution of the stored image (step S511), that is, the first client 120A and the second client to be monitored are transmitted from the first client 120A to the server 110A (step S510). If image distribution to both 120B is feasible, the accumulation of images in the accumulation memory 119 is stopped (step S512).
• step S534 even if the nth client 120 ⁇ that is a period during which image delivery is monitored and is not monitored is transmitted to the server 110A (step S513), the server 11OA will Distribution of the image to the client 120 ⁇ of ⁇ is not performed (step S514).
• an image acquisition request is transmitted from the second client 120B, which is the object of image distribution monitoring, to the server 11 OA (step 515), for example, it is later than 22:00 on Friday, but at 9:00 on Saturday.
• the image is not delivered from the servo 110A to the second client 120B (step S516). It is a recording procedure.
• network camera 110 connected to network 130 and network having a plurality of PCs 120 to which images are distributed by network camera 110 are provided.
• the network camera 110 includes an imaging unit 111 that captures an image, a transmission / reception unit 115 that distributes the captured image captured by the imaging unit 111 to the PC 120, and a captured image that is designated in advance among the plurality of PCs 120.
• a storage memory 1 19 for storing captured images, and the PC 120 has a configuration including an image receiving unit 121 for receiving captured images distributed to the PC 120 specified by the transmission / reception unit 115. Images can be reliably delivered to PC 120.
• the present invention is useful for a network camera, a network camera system, and the like that can reliably deliver an image to a designated delivery destination.

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• Engineering & Computer Science (AREA)
• Multimedia (AREA)
• Signal Processing (AREA)
• General Engineering & Computer Science (AREA)
• Databases & Information Systems (AREA)
• Closed-Circuit Television Systems (AREA)
• Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
• Studio Devices (AREA)
• Television Signal Processing For Recording (AREA)

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• 2005
  • 2005-11-18 JP JP2005334548A patent/JP4712537B2/ja not_active Expired - Fee Related
• 2006
  • 2006-11-16 WO PCT/JP2006/322882 patent/WO2007058269A1/ja not_active Ceased
  • 2006-11-16 CN CN2006800431769A patent/CN101313571B/zh not_active Expired - Fee Related
  • 2006-11-16 EP EP06832762A patent/EP1956843A1/en not_active Withdrawn
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