JP5622428B2 - Video transmission processor - Google Patents

Description

  The present invention relates to a video transmission processing apparatus suitable for application to, for example, a video monitoring system that handles camera images of a plurality of channels.

  In a video surveillance system that handles camera images of a plurality of channels, a video transmission processing device that transmits a video signal of an image taken by a surveillance imaging camera to a host-side device via a communication line is applied. To give a specific example, a video transmission processing device called an IP encoder inputs video signals of images taken by a plurality of cameras, processes the packets, and communicates with a terminal such as a video transmission processing device via a communication line such as a LAN. Transmit video and control signals to a monitoring server that remotely monitors the device.

  In this type of video surveillance system, since continuous system operation must be ensured, quick replacement work and maintenance / inspection work are required for failure and maintenance / inspection of equipment constituting the system.

  The video transmission processing device constituting the system requires a communication protocol for establishing communication with a monitoring server as a host-side device, and uses a MAC (media access control) address to communicate with the monitoring server. Communication is established. As is well known, this MAC address is a device (hardware) address unique to the video transmission processing apparatus, and is set as a fixed value. A predefined IP (internet protocol) address is used for data transfer on the network.

  Accordingly, in the replacement work such as replacement of the video transmission processing device constituting the system, the MAC address is changed, and much time and labor are spent on the MAC address change work. There was a problem that had to be stopped).

  As device control technology for this MAC address, there has conventionally been a license authentication system using a detachable device having a MAC address (see Patent Document 1), a LAN connection interface unit (see Patent Document 2), and the like. However, in addition to the original system components, these technologies require a special system configuration that targets MAC address inheritance, an authentication system, and the like, making the overall configuration of the device complicated and economical. There is also a problem in terms of.

JP 2006-215714 A JP 2003-087252 A

  As described above, conventionally, in the replacement work such as replacement of the video transmission processing apparatus, a lot of time and labor are spent on the MAC address change work, and during that time, there has been a problem that the system operation must be interrupted. .

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a video transmission processing device that can quickly and easily perform a device replacement operation without requiring a complicated system configuration or an authentication system. .

The present invention provides a video signal that is provided at a predetermined part in a housing and that processes a video signal input via a camera connector for connecting a camera according to a predetermined transmission format and transmits the video signal to a video transmission destination via a communication connector. A fixed board that mounts a processing unit and a fixed storage unit that is screwed and fixed to the back surface or one side surface of the housing and stores a device-specific MAC address that the video processing unit sends to the video transmission destination is mounted. A sub-board detachably provided from the housing, an active machine in which the main board and the sub-board are mounted in a first housing, and the parent board and the sub-board are connected via an internal cable; When the parent board is mounted in the second housing and the working machine fails, the child board mounted in the first housing of the working machine is removed and taken as a child board in the second housing. Kicking it, characterized in video transmission apparatus provided with the a spare machine capable.

  ADVANTAGE OF THE INVENTION According to this invention, the video transmission processing apparatus which can perform the replacement | exchange operation | work of an apparatus rapidly and easily can be provided, without requiring a complicated system configuration, an authentication system, etc.

The figure for demonstrating the outline | summary of the video transmission processing apparatus which concerns on embodiment of this invention. The block diagram which shows the structure of the video transmission processing apparatus which concerns on the said embodiment. The perspective view which shows the sub board | substrate attachment structure of the video transmission processing apparatus which concerns on the said embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

  A video transmission processing apparatus according to an embodiment of the present invention is shown in FIGS. FIG. 1 is a diagram for explaining the outline of the video transmission processing apparatus, FIG. 2 is a block diagram showing the configuration of the apparatus, and FIG. 3 is a perspective view showing a sub board mounting structure of the apparatus.

  The video transmission processing apparatuses 10-1 and 10-2 shown in FIG. 1 have the same configuration except for the presence or absence of some constituent elements (child boards 12), and the video transmission processing apparatus 10-1 (failure or system change) Alternatively, the video transmission processor 10-2, which is disconnected from the video surveillance system (by function change or maintenance check, etc.), is incorporated into the video surveillance system in place of the video transmission processor 10-1 (from the spare machine to the active machine). It is a video transmission processing device. Here, the video transmission processing apparatus 10-1 is referred to as apparatus A, and the video transmission processing apparatus 10-2 is referred to as apparatus B. The child board 12 is not mounted on the device B prepared in advance as a spare machine, and the child board (child substrate A) 12 removed from the device A is incorporated in the device B, so that the device A can be connected to the device A in the video monitoring system. Instead, the device B becomes operable. A fixed storage unit 121 in which a MAC address (hardware address) unique to the video transmission processing device 10 is stored in advance is mounted on the slave board (slave board A) 12, and the MAC address stored in the fixed storage unit 121 is stored. By using this, the line connection between the video transmission processing apparatus 10 (the apparatus B incorporating the slave board A) and the data transmission destination (communication destination) device in the video monitoring system becomes possible.

  As shown in FIGS. 2 and 3, the video transmission processing apparatus 10 has a housing 10A having camera connectors P1 and Pm for connecting a camera (surveillance camera) 20 and a communication connector C1 for connecting a LAN serving as a transmission line. A mother board 11 provided at a predetermined part in the housing 10A, and an internal connector 13 provided in a part different from the part provided with the mother board 11 in the housing 10A and connected to the mother board 11 by a circuit. The sub-board 12 provided to be removable from the housing 10A, and the video signal input to the camera connectors P1 and Pm mounted on the main board 10A and subjected to signal processing according to a predetermined transmission format, and the communication connector C1 And a fixed storage unit 121 that is mounted on the sub-board 12 and stores a MAC address that the video processing unit sends to the line connection destination via the communication connector C1. Composed comprises a. The sub board 12 is a small board that has a plate area as small as about 1/10 of that of the main board 11 and is easy to handle, and is provided in a portion that can be easily attached and detached in the housing 10A. Here, the mounting screw 16 is screwed to one side surface in the housing 10A.

  A fixed storage unit 121 using an EEPROM is mounted on the child board 12, and the internal connector cable 14 is connected to the internal connector 13, whereby the EEPROM mounted on the child board 12 is connected to the parent board 11 in a circuit. The The internal connector cable 14 is a flexible cable that extends the connection wiring of the EEPROM. In addition to the MAC address described above, the fixed storage unit 121 stores in advance device setting information that defines a transfer rate when a video signal is encoded and transmitted.

  The parent substrate 11 is supported by a substrate mounting column 15 provided in the housing 10A and screwed to a predetermined substrate mounting portion in the housing 10A. Circuit elements such as a digital signal processor (DSP) 111, an A / D converter 112, an internal storage unit (MM) 113, and a communication interface unit (PHY) 114 constituting the video processing unit are mounted on the parent substrate 11. Yes.

  The DSP 111 controls the entire apparatus in the video transmission processing apparatus 10. The DSP 111 reads the MAC address and device setting information from the fixed storage unit 121 mounted on the slave board 12, and assigns the read MAC address and device setting information in advance. The video signal stored in the internal storage unit 113 together with the IP address and digitized by the A / D converter 112 is packet-processed according to the specification of the device setting information, and sent to the communication interface unit 114 together with the MAC address and the IP address. Has a processing function.

  The A / D converter 112 has a processing function for reducing the noise of the video signals of the surveillance cameras 20 input to the camera connectors P1 and Pm, converting them to analog / digital, and sending them to the DSP 111. The internal storage unit (MM) 113 has storage areas such as a program executed by the DSP 111 and a MAC address (MAC-A) and IP address (IP-A) used for data transmission, and is read / written by the DSP 111. Be controlled.

  The communication interface unit (PHY) 114 has a communication processing function for transmitting a video signal packetized using a MAC address and an IP address to a monitoring server via a LAN under the control of the DSP 111. In this communication process, the communication interface unit 114 monitors the device setting information including the MAC address and the packet data (packetized video signal) using the IP address connected to the LAN via the communication connector C1 and the communication line 30. It transmits to the server 40 and receives various control signals for remotely operating the camera and camera video via the LAN from the monitoring server 40.

  Here, the replacement procedure of the video transmission processing apparatus 10 will be described with reference to FIGS. 1 to 3. Here, the video transmission processing device 10-1 shown in FIG. 1 is disconnected from the video monitoring system due to a failure or for other reasons, and the video transmission processing device 10-2 is replaced with the video monitoring system in place of the video transmission processing device 10-1. The replacement work of the apparatus to be incorporated will be described. The sub-board 12 is not mounted on the video transmission processing apparatus 10-2 serving as a spare machine. Here, the removal and attachment of the cover covering the housing 10A is omitted.

  In this device replacement, first, the operation of the video transmission processing device 10-1 is stopped, and the slave board 12 attached to one side surface in the housing 10A of the video transmission processing device 10-1 is removed from the housing 10. . The removal work of the child board 12 is fixed by releasing the screwing of the mounting screw 16 that screws the child board 12 and releasing the connector connection between the internal connector 13 and the internal connector cable (flexible cable) 14. The sub board 12 on which the storage unit 121 is mounted can be removed from the housing 10. At this time, the child board 12 is a small and lightweight board on which an EEPROM is simply mounted, and is easy to handle and is screwed to a part that can be easily attached and detached in the housing 10A. Can be easily and quickly removed from the housing 10.

  Subsequently, the child board 12 removed from the housing 10 of the video transmission processing apparatus 10-1 is mounted on the video transmission processing apparatus 10-2, and the video transmission processing apparatus 10-2 is activated as an active machine. The mounting of the sub-board 12 on the video transmission processing apparatus 10-2 at this time is a work process that goes back to the work of removing the sub-board 12 from the video transmission processing apparatus 10-1, and the video on which the sub-board 12 is not mounted. The operation of attaching the sub board 12 to the transmission processing apparatus 10-2 can be performed easily and quickly.

  By removing and attaching the sub-board 12 as described above, the replacement work of the video transmission processing apparatus 10 can be performed quickly, thereby significantly reducing the non-operation time of the video monitoring system and enabling highly reliable video monitoring. It becomes.

  In the above-described embodiment, the sub-board 12 is attached and detached by connecting and releasing the connector between the internal connector 13 provided on the sub-board 12 and the internal connector cable 14 provided extending from the main board 11. Although the work has been performed, it is also possible to perform the work of attaching and detaching the sub board 12 by connecting and releasing the connector on the main board 11 side. In the embodiment described above, the mounting structure is such that the child board 12 is screwed and fixed to one side surface in the housing 10A. However, the present invention is not limited to this, and for example, the child board 12 is provided on the back surface or the front surface of the housing 10A. A structure having a keyed pocket for housing the connector and connecting the child board 12 accommodated in the pocket to the parent board 11 via an extension cable, or a part other than a screw-fastened part in the housing 10A that can be easily attached and detached. A sub-board mounting structure having another configuration such as a structure for mounting the sub-board 12 using a board fixture may be used. Further, the configuration of the video processing unit mounted on the parent substrate 11, the attachment site of the parent substrate 11 in the housing 10A, and the like are not limited to the above-described embodiments, and the main points are within the scope of the present invention. Various modifications and changes are possible.

  DESCRIPTION OF SYMBOLS 10 ... Video transmission processing apparatus, 10A ... Housing, 11 ... Parent board, 12 ... Sub board, 13 ... Internal connector, 14 ... Internal connector cable, 15 ... Post, 16 ... Mounting screw, 20 ... Surveillance camera, 111 ... Digital Signal processor (DSP), 112... A / D converter, 113... Internal storage unit (MM), 114 .. Communication interface unit (PHY), C1 .. Communication connector, P1, Pm.

Claims (3)

A video processing unit that is provided at a predetermined location in the housing and that processes video signals input via a camera connector that connects the camera according to a predetermined transmission format and sends the video signal to a video transmission destination via a communication connector A parent board to
A fixed storage unit is mounted that is screwed to the back or one side of the housing and stores a MAC address unique to the device that the video processing unit sends to the video transmission destination, and is detachable from the housing. A child board,
The master board and the slave board are mounted in a first housing, and the master board and the slave board are connected via an internal cable;
When the parent board is mounted in the second housing and the working machine fails, the child board mounted in the first housing of the working machine is removed and attached as a child board in the second housing. A spare machine capable of
A video transmission processing apparatus comprising: 2. The video transmission according to claim 1, wherein the fixed storage unit of the sub board further stores device setting information defining a transmission rate when the video signal is encoded and transmitted. Processing equipment. The video processing unit
An AD converter for digitally signaling the video signal input through the camera connector,
A digital signal processor for packetizing the video signal processed by the AD converter,
A communication function unit to establish a circuit of the video transmission destination by using the MAC address read from the fixed storage unit of the child board, and transmits the packetized video signals to the video transmission destination,
The video transmission processing apparatus according to claim 1, further comprising:

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