CN112825547B - Photoelectric return partition interaction system for interacting signal sources in each subnet - Google Patents
Photoelectric return partition interaction system for interacting signal sources in each subnet Download PDFInfo
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- CN112825547B CN112825547B CN201911151014.2A CN201911151014A CN112825547B CN 112825547 B CN112825547 B CN 112825547B CN 201911151014 A CN201911151014 A CN 201911151014A CN 112825547 B CN112825547 B CN 112825547B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0071—Provisions for the electrical-optical layer interface
Abstract
The invention relates to a photoelectric return partition interaction system and an interaction method for interacting each subnet signal source, wherein the system comprises: the system comprises an interactive terminal, network-to-optical equipment corresponding to each subnet, optical-to-serial equipment corresponding to each subnet, serial-to-network equipment and forwarding equipment which are positioned in each subnet; the network optical conversion equipment and the optical conversion serial equipment are connected by a unidirectional optical fiber, the optical conversion serial equipment and the serial network equipment are connected by a unidirectional serial port line, and the forwarding equipment is used for receiving the control command sent by the serial network equipment through the target subnet and controlling the target signal source through the target subnet according to the control command sent by the serial network equipment. The invention can prevent other people from using the components in the interactive equipment as information carriers to perform reverse transmission of information in an optical or electric mode, thereby improving the safety of information interaction, particularly improving the safety of information interaction in each subnet and avoiding stream strings or mutual stealing of information among the subnets in the interactive process.
Description
Technical Field
The invention relates to a signal source interaction system and a signal source interaction method, in particular to a photoelectric return separation interaction system and a photoelectric return separation interaction method for interacting signal sources in each subnet.
Background
In some monitoring fields, it is often necessary to call some monitoring images across the network, as shown in fig. 1, where three dashed boxes represent three groups of monitoring devices (e.g., webcams) respectively located in the subnet 1, the subnet 2, and the subnet 3 (as shown by dashed boxes in fig. 1), and information between the subnet 1, the subnet 2, and the subnet 3 is strictly prohibited from flowing into each other due to safety concerns, that is, it is necessary to prevent the content of the monitoring device in the subnet 1 from flowing into the monitoring device in the subnet 2, or the monitoring device in the subnet 1 from affecting the operation of the monitoring device in the subnet 2. Therefore, after the monitoring device of the subnet 1 is called up through the "network" marked in the figure, in order to call up the monitoring device of the subnet 2, the network connection to the subnet 1 needs to be shut down, so as to prevent the two from generating information stream string or mutual influence when they are simultaneously present on the same network. This operation mode, which requires frequent network connection and disconnection, seriously reduces the information acquisition rate, affects the interaction efficiency, and increases the personnel operation cost. Furthermore, there is a possibility that other people may steal the relevant information by using components used in the above cross-network retrieval process, such as connection lines, as information carriers in the form of electrical signals.
Disclosure of Invention
In order to solve the above problems, the present invention provides the following photoelectric return blocking interaction system and interaction method for interacting signal sources in at least two subnets.
The invention provides a photoelectric return partition interaction system for interacting signal sources in at least two subnets, which comprises:
the system comprises an interactive terminal, network-to-optical equipment corresponding to each subnet, optical-to-serial equipment corresponding to each subnet, serial-to-network equipment and forwarding equipment which are positioned in each subnet; the network light conversion equipment and the light conversion serial equipment are connected by using a one-way optical fiber, and the light conversion serial equipment and the serial network equipment are connected by using a one-way serial port line;
the interactive terminal is used for sending a control command for a target signal source in the target subnet to the network switching optical equipment corresponding to the target subnet through the network;
the network optical conversion device is used for receiving the control command through a network, converting the control command into an optical signal and sending the optical signal to optical serial conversion equipment corresponding to a target subnet through the unidirectional optical fiber;
the optical serial conversion equipment is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to the serial conversion network equipment in the target subnet through the unidirectional optical fiber;
the serial port signal is converted into a control command in a network signal form by the serial port conversion equipment, and the control command in the network signal form is sent to the forwarding equipment through the target subnet;
the forwarding device is used for receiving the control command sent by the serial-to-network device through a target subnet and controlling a target signal source through the target subnet according to the control command sent by the serial-to-network device; or, the forwarding device is configured to receive the control command sent by the tandem network device through a target subnet, and forward the control command to a target signal source through the target subnet according to the control command sent by the tandem network device; or the forwarding device is configured to receive the control command sent by the serial-to-network device through the target subnet, and forward the control command to the target signal source through the unidirectional transmission device.
According to some embodiments of the invention, the target signal source comprises a webcam, and the controlling the target signal source comprises controlling the webcam to be turned on and off, adjusted in focal length, and changed in viewing angle.
A second aspect of the present invention provides a photoelectric backhaul isolation interaction system for interacting signal sources in at least two subnets, comprising:
the system comprises an interactive terminal, network-to-optical equipment corresponding to each subnet, optical-to-serial equipment corresponding to each subnet, serial-to-network equipment and forwarding equipment which are positioned in each subnet; the network light conversion equipment and the light conversion serial equipment are connected by using a one-way optical fiber, and the light conversion serial equipment and the serial network equipment are connected by using a one-way serial port line;
the interactive terminal is used for sending a control command for a target signal source in the target subnet to the network switching optical equipment corresponding to the target subnet through the network;
the network optical conversion device is used for receiving the control command through a network, converting the control command into an optical signal and sending the optical signal to optical serial conversion equipment corresponding to a target subnet through the unidirectional optical fiber;
the optical serial conversion equipment is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to the serial conversion network equipment in the target subnet through the unidirectional optical fiber;
the serial port signal is converted into a control command in a network signal form by the serial port conversion equipment, and the control command in the network signal form is sent to the forwarding equipment through the target subnet;
the forwarding device is used for receiving the control command sent by the serial-to-network device through the target subnet, calling the content of the target signal source through the target subnet according to the control command, and decoding the content from the target signal source into a proper format suitable for being output externally through the unidirectional transmission device.
According to some embodiments of the present invention, the control command includes a target signal source ID, target subnet information, an IP address corresponding to the target signal source, a video stream address of the target signal source, network switching optical device information corresponding to a forwarding device in the target subnet, and an IP address of the forwarding device; the receiving the control command sent by the serial-to-network device through the target subnet, and calling the content of the target signal source through the target subnet according to the control command includes: receiving the control command, searching the video stream address of the target signal source according to the control command, and calling the content of the target signal source through the target subnet according to the control command and the video stream address of the target signal source; the unidirectional transmission device comprises a unidirectional video line; or the unidirectional transmission equipment comprises a video optical transceiver and a unidirectional optical fiber.
According to some embodiments of the invention, the unidirectional optical fiber comprises an optical fiber and a fiber isolator; the forwarding device comprises a forwarding computer; the network is isolated from each subnet network.
The third aspect of the present invention provides a photoelectric return blocking interaction method for interacting signal sources in each subnet, where the method includes:
s1, an interactive terminal sends a control command for a target signal source in a target subnet to a network switching optical device corresponding to the target subnet through a network;
s2, the network light conversion equipment corresponding to the target subnet receives the control command, converts the control command into an optical signal, and sends the optical signal to the light conversion serial equipment corresponding to the target subnet through the unidirectional optical fiber;
s3, the optical serial conversion equipment corresponding to the target subnet is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to the serial conversion network equipment in the target subnet through the unidirectional optical fiber;
s4, the serial port signal is received by the serial port conversion network device corresponding to the target subnet, converted into a control command in a network signal form, and sent to a forwarding device in the target subnet through the target subnet;
s5, the forwarding device in the target subnet is used for receiving the control command sent by the serial-to-network device through the target subnet and controlling a target signal source through the target subnet according to the control command sent by the serial-to-network device; or, the forwarding device is configured to receive the control command sent by the tandem network device through a target subnet, and forward the control command to a target signal source through the target subnet according to the control command sent by the tandem network device; or the forwarding device is configured to receive the control command sent by the serial-to-network device through the target subnet, and forward the control command to the target signal source through the unidirectional transmission device.
A fourth aspect of the present invention provides a photoelectric return blocking interaction method for interacting signal sources in each subnet, where the method includes:
s1, an interactive terminal sends a control command for a target signal source in a target subnet to a network switching optical device corresponding to the target subnet through a network;
s2, the network light conversion equipment corresponding to the target subnet receives the control command, converts the control command into an optical signal, and sends the optical signal to the light conversion serial equipment corresponding to the target subnet through the unidirectional optical fiber;
s3, the optical serial conversion equipment corresponding to the target subnet is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to the serial conversion network equipment in the target subnet through the unidirectional optical fiber;
s4, the serial port signal is received by the serial port conversion network device corresponding to the target subnet, converted into a control command in a network signal form, and sent to a forwarding device in the target subnet through the target subnet;
and S5, the forwarding device in the target subnet receives the control command sent by the serial-to-network device through the target subnet, calls the content of the target signal source through the target subnet according to the control command, and decodes the content from the target signal source into a proper format suitable for being output externally through the unidirectional transmission device.
According to some embodiments of the invention, the method comprises:
decoding content from a target signal source into a suitable format for output externally to a video encoder by a unidirectional transmission device and sending the content of the suitable format of the target signal source to the video encoder by the unidirectional transmission device; and
and receiving the content with the proper format from the forwarding device through the video encoder, encoding the content into a network signal, and sending the network signal to an interactive terminal or outputting the network signal to the outside through a network.
According to some embodiments of the invention, the target signal source comprises: a web camera, a web sensing device, a web smart display and/or control device, a web computing device, a mobile device, or a combination thereof; the network is isolated from each subnet network; the distance of signal transmission on the unidirectional optical fiber is obviously longer than that of signal transmission on the serial port line
Through the embodiment of the invention, other people can be prevented from using the components in the interactive equipment as information carriers to perform reverse information transmission in an optical or electrical mode, so that the safety of information interaction is improved, especially the safety of information interaction in each subnet is improved, and stream strings or mutual stealing of information among the subnets in the interaction process is avoided.
Drawings
Fig. 1 illustrates a connection manner of a monitoring device (web camera) and an interactive terminal in a plurality of subnets in the prior art;
fig. 2 illustrates a schematic diagram of an optoelectronic backhaul partition interaction system, according to some embodiments of the present invention;
fig. 3 shows a schematic diagram of a portion of the optoelectronic backhaul isolation interaction system shown in fig. 2;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
In the present application, the essence of the present application, which relates to the implementation through a network, is intended to cover both the wired or wireless network connection implemented through necessary firmware or software such as a switch, a router, etc., and the wired or wireless network connection implemented through some server or other computer, etc., as an intermediary. In the present application, the networks involved may include Wi-fi networks, Bluetooth networks, Private Area Networks (PAN), Local Area Networks (LAN), Wide Area Networks (WAN), IEEE 802.1x, intranets, the Internet, extranets, and combinations thereof. The network may also include a digital cellular telephone network, which may include Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), cdmaOne, CDMA2000, evolution-data optimized (EV-DO), enhanced data rates for GSM evolution (EDGE), Universal Mobile Telecommunications System (UMTS), Digital Enhanced Cordless Telecommunications (DECT), digital AMPS (IS-136/TDMA), Integrated digital enhanced network (iDEN), WiMAX, LTE advanced, Mobile broadband Wireless Access (target-Source WA), IEEE 802.20. The network may be public access, private, virtual private, such as a VPN.
In this application, a component is located within a subnet, meaning: the component may establish network connections through other components within the subnet and subnet as desired.
For convenience of understanding, in some cases, a subnet may be described by a subnet in which a webcam is located, or a subnet in which a tandem network device is located, or a subnet in which a forwarding device (e.g., a forwarding device) is located, and when it is referred to that a webcam in a certain subnet is interacted, the subnet is also referred to as a target subnet. It will be understood by those skilled in the art from the context that the various subnets defined in the foregoing manner sometimes refer to the same subnet.
The invention will now be described by way of example with reference to the accompanying drawings, in conjunction with which embodiments are shown.
Fig. 2 illustrates a schematic diagram of an optoelectronic backhaul partition interaction system (hereinafter referred to as an interaction system) according to some embodiments of the present invention; fig. 3 shows a schematic diagram of a portion of the optoelectronic backhaul partition interaction system shown in fig. 2, i.e.,; a schematic diagram of the transmission portion of control commands between the interactive terminal 2 and the respective computers 4-6 is shown in further detail in fig. 3 by the square frame portion 491 and 493 in fig. 2.
Referring to fig. 2 and 3, an interactive system according to some embodiments of the present invention includes an interactive terminal 2, a block section 491 shown, 493, forwarding devices (4/5/6) within respective subnets, and video encoders (7/8/9) corresponding to the respective subnets. The interactive terminal 2 is connected to the pictorial block 491 & 493 via an interactive network (the "interactive network" is used to refer to the network where the interactive terminal 2 initiates the interactive operation) for outputting control commands to one or more of them; the control command is sent to the forwarding device (4/5/6) over the interactive network after passing through the block portion. The interactive terminal can be, for example, an interactive computer, an IPAD and other devices capable of receiving a user control command; the interactive network may be, for example, a private network shown in the figure, and the private network and the sub-network may be network isolated according to an actual scenario. The forwarding device may be, for example, a forwarding computer or other forwarding device that includes functionality to implement context-dependent functionality, or a control platform. Forwarding devices within each subnet and network cameras (10/11/12; 13/14/15; 16/17/18) within the subnet are both connected to the respective subnet; the forwarding devices within each subnet are connected to respective video encoders (7/8/9) by respective unidirectional video lines; each video encoder is connected to the interactive terminal 2 via an interactive network, for example via a private network as shown in the figure to the interactive terminal 2.
The operation of the various components of the exemplary interaction system of the present invention and exemplary interaction processes or methods will be described below in conjunction with fig. 2 and 3.
The interactive terminal 2 may pre-store the network camera ID in each subnet, the IP address of each network camera, the corresponding relationship between the network camera ID and the video stream address of the network camera, the subnet information where each network camera is located, and the corresponding relationship between the forwarding devices 4-6 in the subnet where each network camera is located and the network switching devices in 491; the IP addresses of the webcams and the correspondence between the ID of the webcam and the video stream address of the webcam may also be stored in advance in the forwarding devices (as will be mentioned below). In this context, for ease of understanding, the same subnet may in some instances be described by the subnet in which the webcam resides, or by the subnet in which other components reside, but those skilled in the art will understand from context that each subnet defined in the foregoing manner sometimes refers to the same subnet.
Now, assuming that the network camera to be controlled by the interactive terminal 2 is the network camera 10 in the figure, a user may act on a mark corresponding to the network camera 10 through actions such as clicking, double-clicking, rotating, and the like, to trigger a control command for the network camera 10 (or called a target camera), for example, the control command is used to instruct to control the network camera 10 to be turned on, turned off, adjusted in focal length, changed in viewing angle, and the like, or instruct to call a monitoring picture of the corresponding network camera 10; the control command may further include an ID of the network camera 10, an IP address of the network camera 10, a video stream address of the network camera 10, information of a subnet in which the network camera 10 is located, information of the optical network switching device 23 corresponding to the forwarding device 4 in the subnet in which the network camera 10 is located, and an IP address of the forwarding device.
After receiving the control command for the network camera 10, the interactive terminal 2 sends the control command to the corresponding network-to-optical conversion device 23 through the network according to the control command, that is, to the network-to-optical conversion device 23 corresponding to the forwarding device 4 in the subnet in which the network camera 10 is located. Here, after receiving the control command, the interactive terminal 2 may read information such as the network-to-optical device 23 corresponding to the subnet where the network camera 10 is located or the forwarding device 4 in the subnet where the network camera is located, so as to send the control command to the corresponding network-to-optical device 23, and thus the control command may be finally sent to the corresponding forwarding device 4. In the present application, the information included in the control command may be increased or decreased according to actual needs, for example, before the control command is transferred from the interactive terminal 2 to the network optical switching device 23, the information such as the network optical switching device 23 corresponding to the transfer device 4 in the subnet in which the network camera 10 is located in the control command to be transferred may be removed. After reading this application, it will be apparent to those skilled in the art that some information may be deleted from the control command as needed and as a transmission link, as appropriate, to avoid that the used information, which is no longer necessary, is passed on to the next step. Since the cases where information in such control commands can be deleted and added with the transmission of control commands can be determined by those skilled in the art based on the context, various deletions and additions are not illustrated and described herein, but are intended to be covered by the present application in describing the transmission of control commands, and are within the intended and protected scope of the present invention.
The network optical switching device 23 is configured to receive the control command through the network, convert the control command into an optical signal, and send the optical signal to the optical switching device 231 corresponding to the target subnet (subnet 1) through the unidirectional optical fiber 35.
The optical serial conversion device 231 is configured to receive the optical signal, convert the optical signal into a serial signal, and send the serial signal to the serial network device 237 in the target subnet through the unidirectional optical fiber 35.
The serial network device 237 is configured to receive the serial port signal, convert the serial port signal into a control command in the form of a network signal, and send the control command in the form of the network signal to the forwarding device 4 through the target subnet.
The network light conversion device 23 and the light conversion serial device are connected by a unidirectional optical fiber 35, and the light conversion serial device 231 and the serial network device 237 are connected by a unidirectional serial port line 236. The unidirectional optical fiber 35 may include an optical fiber and a fiber isolator (or optical gate or isolator) for implementing unidirectional transmission of optical signals on the optical fiber, wherein the opposite optical signals are isolated.
Similarly, as shown in fig. 3, between the interactive terminal 22 and the forwarding device 5, and between the interactive terminal 22 and the forwarding device 6, there are also arranged in sequence: the device comprises a network light conversion device, a light string conversion device and a string conversion network device.
The forwarding device 4 is configured to receive the control command and, according to the control command, control the network camera 10 through the subnet (e.g., subnet 1 in fig. 2) where the network camera 10 is located or send the control command to the network camera 10 through the subnet (e.g., subnet 1 in fig. 2) where the network camera 10 is located.
Now, assuming that the control command is only for instructing to control the network camera 10 to turn on, turn off, adjust the focal length, change the angle of view, etc., the forwarding device 4 sends the control command or the operation command for the network camera in the control command to the corresponding network camera 10 according to the information such as the network camera IP address corresponding to the network camera ID in the control command, so as to control the network camera 10, for example, to control the network camera 10 to turn on, turn off, adjust the focal length, change the angle of view, etc. In some embodiments, the forwarding device 4 may also store a correspondence between the network camera ID and information such as the network camera IP address in advance, so that the forwarding device 4 searches for the IP address corresponding to the camera according to the network camera ID, and controls the corresponding camera according to the IP address; in this case, it is not necessary to store the correspondence between the network camera ID and the information such as the IP address of the network camera in the interactive terminal 2. In some other embodiments, the forwarding device 4 may also send a control command to the corresponding webcam 10 directly through a unidirectional serial port line in the form of a serial signal or through the subnet where the control command is located, so as to control the on/off, the focal length, and the viewing angle of the webcam 10.
If the control command or the operation command corresponds to retrieving the monitoring picture of the network camera 10, the forwarding device 4 retrieves the picture of the network camera 10 through the network where the network camera 10 is located according to the control command, and converts the network signal corresponding to the picture into a video signal to be output to the outside, for example, to an arbitrary display screen through a video line. Here, the interactive terminal 2 may pre-store the video stream address of the network camera corresponding to the network camera ID, and forward the video stream address to the forwarding device 4 along with the control command; in some embodiments, instead of storing information such as the correspondence between the network camera ID and the video stream address of the network camera in the interactive terminal 2, the forwarding device may store information such as the correspondence between each network camera ID and the video stream address of the network camera in advance, so that the forwarding device can search for the video stream address corresponding to the camera ID according to the camera ID, and call the picture of the corresponding camera accordingly.
The interactive system may further include a video encoder, the forwarding device encodes the picture retrieved from the camera into a video signal, transmits the video signal to the corresponding video encoder through a unidirectional video line, encodes the video signal into a network signal by the video encoder, and transmits the network signal to the interactive terminal 2 through a network, such as a private network in the figure, thereby implementing retrieval of the network camera 10. In some embodiments, the interactive terminal 2 may pre-acquire or store the video stream address information of the video encoder 7 in order to acquire the output content, i.e. the content of the camera 10, from the video encoder. The unidirectional video line can comprise various video lines which can realize unidirectional transmission, such as HDMI, DVI and the like, and the forwarding device processes the content according to the type of the unidirectional video line before outputting the content to the video encoder so as to output the content to the video encoder through the video line. In some embodiments, the forwarding device may encode the picture called from the camera into a video signal, and may output the video signal to the video encoder through the video optical transceiver and the unidirectional optical fiber, and then the video encoder encodes the video signal into a network signal, and transmits the network signal to the interactive terminal 2 through a network, such as a private network in the figure, thereby calling the network camera 10. The unidirectional optical fiber may include an optical fiber and a fiber isolator to achieve optical return blocking.
In this application, the optical network switching device 23 and the like corresponding to the subnet are intended to indicate that these devices are allocated to assist in implementing the interaction with the devices in the subnet, and the serial network device 237, the forwarding device and the like in the subnet are intended to indicate that the serial network device 237 and the forwarding device can establish a connection through the subnet as needed. Some devices are corresponding to a subnet and are also devices in the subnet, such as the optical network switch device 237, so that the descriptions of the devices corresponding to the subnet or the devices in the subnet are not conflicting in the context of sometimes only making the descriptions more intuitive or easy to understand. The network and each sub-network can be isolated by network, that is, the network on which the interactive terminal sends the control command and each sub-network can be isolated by network, and the network on which the video encoder sends the network signal and each sub-network can be isolated by network.
The above description of the components surrounding the first dashed box section 491 of fig. 3 also applies to the components of the remaining two dashed box sections 492 and 493. For the sake of simplicity, no further description is provided herein.
In the present application, in addition to the interactive terminal, the interactive terminal may also be replaced by other interactive devices or control devices having the above-mentioned functions of the interactive terminal; in addition, in the present application, in addition to the forwarding device, another forwarding device or control device having the above-described functions of the forwarding device may be used instead of the forwarding device.
In the above embodiments, the network camera is taken as an example for description, and those skilled in the art will understand that the description or technical solutions are also applicable to other signal sources, for example, various network sensing devices, various network intelligent display and/or control devices, various network computing devices, mobile devices, etc., or combinations thereof.
Through the embodiment of the invention, other people can be prevented from using the components in the interactive equipment as information carriers to perform reverse information transmission in an optical or electrical mode, so that the safety of information interaction is improved, especially the safety of information interaction in each subnet is improved, and stream strings or mutual stealing of information among the subnets in the interaction process is avoided.
According to some embodiments of the present invention, the method for interacting signal sources in at least two subnets includes steps S1-S5:
s1, an interactive terminal sends a control command for a target signal source in a target subnet to a network switching optical device corresponding to the target subnet through a network.
The interactive terminal can be a computer, and the 'interaction' is used for indicating that the interactive terminal is used for realizing the interaction or the control of a target object; the control command is used for indicating a target signal source in a control target subnet, such as on, off, focal length adjustment, view angle conversion and the like of a network camera, or indicating to call a monitoring picture of the network camera in the target subnet and the like; the control command may further include information such as a target signal source ID, target subnet information, an IP address corresponding to the target signal source, a video stream address of the target signal source, network-to-optical device information corresponding to a forwarding device (or referred to as a control platform, a forwarding platform, which may be, for example, a forwarding device) in the target subnet, and an IP address of the forwarding device.
And S2, the network light conversion equipment corresponding to the target subnet receives the control command, converts the control command into an optical signal, and sends the optical signal to the light conversion serial equipment corresponding to the target subnet through the unidirectional optical fiber.
The unidirectional serial port line comprises a simplex serial port line. Or the transmission in one direction of the duplex serial port line can be cut off, so that the duplex serial port line becomes a unidirectional serial port line in essence.
And S3, the optical serial conversion equipment corresponding to the target subnet is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to the serial conversion network equipment in the target subnet through the unidirectional optical fiber.
And S4, the serial network equipment corresponding to the target subnet is used for receiving the serial port signal, converting the serial port signal into a control command in a network signal form, and sending the control command in the network signal form to forwarding equipment in the target subnet through the target subnet.
S5, the forwarding device in the target subnet is used for receiving the control command sent by the serial-to-network device through the target subnet and controlling a target signal source through the target subnet according to the control command sent by the serial-to-network device; or, the forwarding device is configured to receive the control command sent by the tandem network device through a target subnet, and forward the control command to a target signal source through the target subnet according to the control command sent by the tandem network device; or the forwarding device is configured to receive the control command sent by the serial-to-network device through the target subnet, and forward the control command to the target signal source through the unidirectional transmission device.
The unidirectional transmission equipment comprises a unidirectional video wire or a unidirectional optical fiber; the unidirectional optical fiber may include an optical fiber and a fiber isolator to achieve optical return blocking.
According to some embodiments of the present invention, the transmission distance of the unidirectional optical fiber may be significantly greater than the transmission distance of the serial port line, that is, the transmission distance of the signal on the unidirectional optical fiber is significantly greater than the transmission distance on the serial port line, so that the signal is transmitted in the optical fiber as much as possible, and the electromagnetic interference possibly suffered by the presence of the serial port line is reduced as much as possible.
The network and each sub-network can be isolated by network, that is, the network on which the interactive terminal sends the control command and each sub-network can be isolated by network.
According to still other embodiments of the present invention, an optoelectronic backhaul isolation interaction method for interacting signal sources in at least two subnets, the interaction method includes the following steps S21-S25:
the S21-S24 are similar to the S1-S4, and thus are not described herein. Step S25 includes:
and the forwarding equipment in the target subnet receives the control command sent by the serial-to-network equipment through the target subnet, calls the content of the target signal source through the target subnet according to the control command, and decodes the content from the target signal source into a proper format suitable for being output externally through the unidirectional transmission equipment.
According to still further embodiments of the invention, the method may further comprise:
s26, decoding the content from the target signal source into a proper format suitable for being externally output to a video encoder through one-way transmission equipment, and sending the content of the proper format of the target signal source to the video encoder through the one-way transmission equipment; and
and receiving the content with the proper format from the forwarding device through the video encoder, encoding the content into a network signal, and sending the network signal to an interactive terminal or outputting the network signal to the outside through a network.
The target signal source may include: a web cam, a web sensing device, a web smart display and/or control device, a web computing device, a mobile device, or a combination thereof.
The network and each sub-network can be isolated by network, namely the network based on which the interactive terminal sends the control command and each sub-network can be isolated by network, and the network based on which the video encoder sends the network signal and each sub-network can be isolated by network; the distance of signal transmission on the unidirectional optical fiber is obviously longer than that on the serial port line.
In addition, a corresponding interaction method may also be implemented based on the interaction systems shown in fig. 2 to 3 of the specification, and the interaction method is also within the protection scope of the present invention.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The photoelectric return partition interaction system for interacting each subnet signal source comprises:
the system comprises an interactive terminal, network-to-optical equipment corresponding to each subnet, optical-to-serial equipment corresponding to each subnet, serial-to-network equipment and forwarding equipment which are positioned in each subnet; the network light conversion equipment and the light conversion serial equipment are connected by using a one-way optical fiber, and the light conversion serial equipment and the serial network equipment are connected by using a one-way serial port line;
the interactive terminal is used for sending a control command for a target signal source in the target subnet to the network switching optical equipment corresponding to the target subnet through the network;
the network optical conversion device is used for receiving the control command through a network, converting the control command into an optical signal and sending the optical signal to optical serial conversion equipment corresponding to a target subnet through the unidirectional optical fiber;
the optical serial conversion equipment is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to the serial conversion network equipment in the target subnet through the unidirectional optical fiber;
the serial port signal is converted into a control command in a network signal form by the serial port conversion equipment, and the control command in the network signal form is sent to the forwarding equipment through the target subnet;
the forwarding device is used for receiving the control command sent by the serial-to-parallel network device through a target subnet, calling the content of a target signal source through the target subnet according to the control command, and decoding the content from the target signal source into a proper format suitable for being output externally through the unidirectional transmission device;
the photoelectric return partition interaction system also comprises a video encoder;
the forwarding device decodes the content from the target signal source into a proper format suitable for being externally output to a video encoder through the unidirectional transmission device, and sends the content of the proper format of the target signal source to the video encoder through the unidirectional transmission device;
the video encoder is used for receiving the content with the proper format from the forwarding device, encoding the content into a network signal, and sending the network signal to the interactive terminal or outputting the network signal to the outside through a network.
2. The optoelectronic backhaul partition interaction system according to claim 1, wherein the control command includes a target signal source ID, target subnet information, an IP address corresponding to the target signal source, a video stream address of the target signal source, network switching optical device information corresponding to a forwarding device in the target subnet, and an IP address of the forwarding device; the receiving the control command sent by the serial-to-network device through the target subnet, and calling the content of the target signal source through the target subnet according to the control command includes: receiving the control command, searching the video stream address of the target signal source according to the control command, and calling the content of the target signal source through the target subnet according to the control command and the video stream address of the target signal source; the unidirectional transmission device comprises a unidirectional video line; or the unidirectional transmission equipment comprises a video optical transceiver and a unidirectional optical fiber.
3. The optoelectronic backhaul partition interaction system of claim 1 or-2, the unidirectional optical fiber comprising an optical fiber and a fiber isolator; the forwarding device comprises a forwarding computer; the network is isolated from each subnet network.
4. A photoelectric return separation interaction method for interacting signal sources in each subnet comprises the following steps:
s1, an interactive terminal sends a control command for a target signal source in a target subnet to a network switching optical device corresponding to the target subnet through a network;
s2, the network light conversion equipment corresponding to the target subnet receives the control command, converts the control command into an optical signal, and sends the optical signal to the light string conversion equipment corresponding to the target subnet through a unidirectional optical fiber;
s3, the optical serial conversion equipment corresponding to the target subnet is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to the serial conversion network equipment in the target subnet through the unidirectional optical fiber;
s4, the serial port signal is received by the serial port conversion network device corresponding to the target subnet, converted into a control command in a network signal form, and sent to a forwarding device in the target subnet through the target subnet;
s5, the forwarding device in the target subnet receives the control command sent by the serial-to-network device through the target subnet, calls the content of the target signal source through the target subnet according to the control command, decodes the content from the target signal source into a proper format suitable for being output to a video encoder through a one-way transmission device, and sends the content of the proper format of the target signal source to the video encoder through the one-way transmission device; and
and receiving the content with the proper format from the forwarding device through the video encoder, encoding the content into a network signal, and sending the network signal to an interactive terminal or outputting the network signal to the outside through a network.
5. The optoelectronic backhaul partition interaction method of claim 4, wherein the target signal source comprises: a web camera, a web sensing device, a web smart display and/or control device, a web computing device, a mobile device, or a combination thereof; the network is isolated from each subnet network; the distance of signal transmission on the unidirectional optical fiber is obviously longer than that on the serial port line.
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| CN103096029A (en) * | 2011-11-03 | 2013-05-08 | 上海宝信软件股份有限公司 | Multi-camera selective video monitoring method |
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| US8117252B2 (en) * | 2002-12-26 | 2012-02-14 | Schaff Glen D | Video-monitor/recording/playback system |
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| CN103096029A (en) * | 2011-11-03 | 2013-05-08 | 上海宝信软件股份有限公司 | Multi-camera selective video monitoring method |
| CN103200201A (en) * | 2013-04-18 | 2013-07-10 | 杭州中威电子股份有限公司 | Public-security inner network and special video network isolation system and method |
| CN106375261A (en) * | 2015-07-21 | 2017-02-01 | 杭州海康威视系统技术有限公司 | Cross-network data transmission method and system |
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