CN111050125A - 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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- CN111050125A CN111050125A CN201911150970.9A CN201911150970A CN111050125A CN 111050125 A CN111050125 A CN 111050125A CN 201911150970 A CN201911150970 A CN 201911150970A CN 111050125 A CN111050125 A CN 111050125A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
- H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet
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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
Abstract
The invention relates to a photoelectric return partition interaction system and an interaction method for interacting signal sources in each subnet, wherein the photoelectric return partition interaction system for interacting the signal sources in each subnet comprises: the system comprises an interactive terminal, network-to-serial equipment, serial-to-optical fiber equipment corresponding to each subnet, optical fiber-to-serial equipment corresponding to each subnet, serial-to-network equipment and forwarding equipment which are positioned in each subnet; the network serial-to-serial device and the serial-to-optical fiber device are connected by a one-way serial port line, the serial-to-optical fiber device and the optical fiber serial-to-serial device are connected by a one-way optical fiber, and the optical fiber serial-to-serial device and the serial-to-network device are connected by a one-way serial port line. The invention can prevent other people from using the components in the interactive equipment as information carriers to perform reverse information transmission 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 interaction process.
Description
Technical Field
The invention relates to a signal source interaction system and an interaction method, in particular to a photoelectric return separation interaction system and an 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 partition interaction system and interaction method for interacting signal sources in each subnet.
The invention provides a photoelectric return partition interaction system for interacting signal sources in each subnet, which comprises:
the system comprises an interactive terminal, network-to-serial equipment, serial-to-optical fiber equipment corresponding to each subnet, optical fiber-to-serial equipment corresponding to each subnet, serial-to-network equipment and forwarding equipment which are positioned in each subnet; the network serial-to-serial device and the serial-to-optical fiber device are connected by a one-way serial port line, the serial-to-optical fiber device and the optical fiber serial-to-serial device are connected by a one-way optical fiber, and the optical fiber serial-to-serial device and the serial-to-network device are connected by a one-way serial port line;
the interactive terminal is used for sending a control command for a target signal source in a target subnet to the network string converting device through a network;
the network-to-serial equipment is used for receiving the control command through a network, converting the control command into a serial port signal and sending the serial port signal to the serial port-to-optical fiber equipment corresponding to the target subnet through the unidirectional serial port line;
the serial port-to-optical fiber equipment is used for receiving the serial port signal, converting the serial port signal into an optical signal and sending the optical signal to the optical fiber-to-serial port equipment corresponding to the target subnet through the unidirectional optical fiber;
the optical fiber serial port conversion device is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to a serial port conversion network device in the target subnet through a one-way serial port line;
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 used for receiving the control command sent by the serial-to-network device through the target subnet and forwarding the control command to the target signal source through the unidirectional serial port line.
According to some embodiments of the invention, the signal source comprises a webcam, and the control target signal source comprises on/off, focus adjustment, and view angle conversion of the webcam.
A second aspect of the present invention provides a photoelectric return partition interaction system for interacting signal sources in each subnet, where the system includes:
the system comprises an interactive terminal, network-to-serial equipment, serial-to-optical fiber equipment corresponding to each subnet, optical fiber-to-serial equipment corresponding to each subnet, unidirectional transmission equipment, serial-to-network equipment and forwarding equipment which are positioned in each subnet; the network serial-to-serial device and the serial-to-optical fiber device are connected by a one-way serial port line, the serial-to-optical fiber device and the optical fiber serial-to-serial device are connected by a one-way optical fiber, and the optical fiber serial-to-serial device and the serial-to-network device are connected by a one-way serial port line;
the interactive terminal is used for sending a control command for a target signal source in a target subnet to the network string converting device through a network;
the network-to-serial equipment is used for receiving the control command through a network, converting the control command into a serial port signal and sending the serial port signal to the serial port-to-optical fiber equipment corresponding to the target subnet through the unidirectional serial port line;
the serial port-to-optical fiber equipment is used for receiving the serial port signal, converting the serial port signal into an optical signal and sending the optical signal to the optical fiber-to-serial port equipment corresponding to the target subnet through the unidirectional optical fiber;
the optical fiber serial port conversion device is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to a serial port conversion network device in the target subnet through a one-way serial port line;
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 invention, the system further 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.
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, information of a port on the network switching device corresponding to the 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 equipment 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 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 unidirectional optical fiber comprises an optical fiber and an optical fiber isolator; the forwarding device includes a forwarding computer.
A third aspect of the present invention provides a method for blocking interaction in a photoelectric backhaul system, where the method includes:
acquiring a control command in a first network signal form, which is sent by an interactive terminal and used for a target signal source in a target subnet, through a network;
converting the control command in the form of the first network signal into a first serial port signal;
transmitting the first serial port signal by using a first unidirectional serial port line;
converting the first serial port signal into an optical signal after the first serial port signal is transmitted for a distance;
transmitting the optical signal using a unidirectional optical fiber;
converting the optical signal into a second serial port signal after the optical signal is transmitted for a certain distance;
transmitting the second serial port signal by using a second unidirectional serial port line;
converting the second serial port signal into a control command in a second network signal form after the second serial port signal is transmitted for a certain distance; and
controlling the target signal source through the target subnet according to the control command in the form of the second network signal; or forwarding the control command to the target signal source through the target subnet according to the control command in the form of the second network signal; or forwarding the control command in the form of the second network signal to the target signal source through the third unidirectional serial port line.
A fourth aspect of the present invention provides a method for blocking interaction in a photoelectric backhaul system, where the method includes:
acquiring a control command in a first network signal form, which is sent by an interactive terminal and used for a target signal source in a target subnet, through a network;
converting the control command in the form of the first network signal into a first serial port signal;
transmitting the first serial port signal by using a first one-way serial port line corresponding to a target subnet;
converting the first serial port signal into an optical signal after the first serial port signal is transmitted for a distance;
transmitting the optical signal by using a unidirectional optical fiber corresponding to a target subnet;
converting the optical signal into a second serial port signal after the optical signal is transmitted for a certain distance;
transmitting the second serial port signal by using a second one-way serial port line corresponding to the target subnet;
and after the second serial port signal is transmitted for a certain distance, converting the second serial port signal into a control command in a second network signal form, 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 equipment.
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 the interactive terminal through a network or outputting the network signal to the outside.
According to some embodiments of the invention, the signal source comprises: 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.
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 (MBWA), 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 ease 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 computer) is located, and when it is referred to as interacting with a webcam in a certain subnet, 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 part of the control commands between the interactive terminal 2 and the respective forwarding devices 4-6 is shown in further detail in fig. 3 as block diagram part 391 and 393 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 forwarding string device 3, an illustrated block portion 391 and 393, forwarding devices (4/5/6) within respective subnets (e.g., forwarding devices or other forwarding devices), and video encoders (/7/8/9) corresponding to the respective subnets. The interactive terminal 2 is connected with the network switching device 3 through an interactive network (the interactive network refers to the network where the interactive terminal 2 initiates the interactive operation), and is used for outputting a control command to the network switching device; 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 network forwarding string device 3 is connected with forwarding devices in each subnet; 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 interactive terminal may be, for example, an interactive computer, an IPAD, or other device capable of receiving a user control command.
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 can pre-store the network camera ID, the network camera IP address, the corresponding relationship between the network camera ID and the video stream address of the network camera, the subnet information of the network camera, the corresponding relationship between the forwarding devices 4-6 in the subnet of the network camera and the ports on the network forwarding serial device 3, the IP address of the forwarding device, and the like; 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 information such as 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 on a subnet in which the network camera 10 is located, and port information and an IP address of a forwarding device on the network converting device 3 corresponding to the forwarding device 4 in the subnet in which the network camera 10 is located.
After receiving the control command for the network camera 10, the interactive terminal 2 sends the control command to a port corresponding to the network switching string device 3, that is, to a port corresponding to the forwarding device 4 in the subnet where the network camera 10 is located, through the network according to the control command. Here, after receiving the control command, the interactive terminal 2 may read information such as a port on the network forwarding device 3 corresponding to the forwarding device 4 in the subnet in which the network camera 10 is located, so as to send the control command to the port of the corresponding network forwarding device 3, 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 relay device 3, information such as a port on the network relay device 3 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 switching serial device 3 is configured to receive the control command in the form of a network signal sent by the interactive terminal, convert the control command into a serial signal (i.e., a control command in the form of a serial signal, which is abbreviated as a serial signal hereinafter for simplicity), pass the serial signal through a port on the network switching serial device 3 corresponding to the forwarding device 4 in the subnet where the network camera 10 is located, and finally send the control command to the corresponding forwarding device 4, that is, after the serial signal is sent out from the port, the serial signal is sequentially transmitted to the forwarding device 4 via the unidirectional serial port line 35, the serial-to-optical fiber device 31, the optical fiber 36, the optical fiber switching serial device 32, the unidirectional serial port line 37, the serial-to-network device 33 in the subnet, and the subnet 1 corresponding to the subnet where the network camera 10 is located. The unidirectional serial port line 35, the serial port-to-optical fiber device 31, the optical fiber 36, the optical fiber-to-serial port device 32, and the unidirectional serial port line 37 corresponding to the subnet are intended to indicate that these devices are allocated to assist in implementing the interaction of the devices in the subnet, and the serial network device in the subnet is intended to indicate that the serial network device and other devices in the subnet can establish a connection through the subnet as needed. Some devices are devices corresponding to a certain subnet and are also devices in the subnet, such as the tandem device 33, so that in this context, sometimes only for the purpose of making the description more intuitive or easy to understand, the descriptions of the devices corresponding to a certain subnet or the devices in the subnet are used, and the two descriptions do not conflict with each other.
The serial port-to-optical fiber device 31 is used for converting a serial port signal into an optical signal; the optical fiber to serial port device 32 is used for converting the optical signal into a serial port signal; serial network device 33 is configured to convert the serial signal into a network signal.
Similarly, as shown in fig. 3, between the network relay device 3 and the forwarding device 5, and between the network relay device 3 and the forwarding device 6, there are also arranged in sequence: the serial port-to-optical fiber device, the optical fiber-to-serial port device and the serial network device are connected through a one-way serial port line, the serial port-to-optical fiber device and the optical fiber-to-serial port device are connected through a one-way optical fiber, the optical fiber-to-serial port device and the serial network device are connected through a one-way serial port line, and the one-way optical fiber comprises an optical fiber and an optical fiber isolator.
The forwarding device 4 (which may be a forwarding computer, for example) is configured to receive the control command and, according to the control command, control the network camera 10 through the subnet in which the network camera 10 is located (e.g., the subnet 1 in fig. 2), or transmit the control command to the network camera 10 through the subnet in which the network camera 10 is located (e.g., the subnet 1 in fig. 2).
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.
The above description of the components surrounding the first dashed box portion 391 of fig. 3 also applies to the components of the remaining two dashed box portions 392 and 393. 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-S8:
s1, a control command in a first network signal form, sent by an interactive terminal, for a target signal source in a target subnet is obtained 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 an ID of the target signal source, information of the target subnet, an IP address corresponding to the target signal source, a video stream address of the target signal source, and information of a port on a network switching device corresponding to a forwarding device (or called a control platform, or a forwarding platform) in the target subnet.
S2, converting the control command in the first network signal form into a first serial port signal.
Here, the conversion of the control command form may be implemented by a network converting device, and the network converting device may be a plurality of network converting devices, which can convert one input into a plurality of serial port signal outputs; or, in some embodiments, the network-to-string converting device may also be a single-port network-to-string converting device, at this time, there is a single-port network-to-string converting device in each subnet, and the control command is sent to the single-port network-to-string converting device corresponding to the target subnet.
And S3, transmitting the first serial port signal by using a first one-way serial port line.
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 S4, converting the first serial port signal into an optical signal after the first serial port signal is transmitted for a distance.
The distance is not limited to a specific distance. The serial signal may be converted to an optical signal by a serial-to-fiber device to make the signal suitable for subsequent transmission over fiber.
And S5, transmitting the optical signal by using a unidirectional optical fiber.
The unidirectional optical fiber may include an optical fiber and a fiber isolator.
S6, converting the optical signal into a second serial port signal after the optical signal is transmitted for a certain distance;
the distance is not limited to a specific distance. The optical signal may be converted to a serial signal by a fiber-to-serial device to make the signal suitable for subsequent transmission in a serial line.
And S7, transmitting the second serial port signal by using a second one-way serial port line.
And S8, after the second serial port signal is transmitted for a certain distance, converting the second serial port signal into a control command in a second network signal form, and controlling the target signal source through the target subnet or forwarding the control command to the target signal source through the target subnet according to the control command in the second network signal form.
The distance is not limited to a specific distance. The serial signal may be converted to a network signal by a serial-to-network signal to make the signal suitable for subsequent transmission in a network. According to some embodiments of the invention, the target signal source may be controlled by the target subnet in accordance with a control command in the form of the network signal. Or the control command may be directly forwarded to each target signal source through the target subnet or the unidirectional serial port line, for example, the target signal source responds accordingly
According to some embodiments of the present invention, the optical fiber transmission distance may be significantly greater than the serial line transmission distance, so that signals are transmitted in the optical fiber as much as possible, so as to reduce as much as possible the electromagnetic interference that may be suffered by the presence of the serial line.
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-S28:
the S21-S27 are similar to the S1-S7, and thus are not described herein. Step S28 includes:
and after the second serial port signal is transmitted for a certain distance, converting the second serial port signal into a control command in a second network signal form, 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 equipment.
The content of the target signal source called through the target subnet according to the control command includes, for example, calling a picture of a network camera through the target subnet, and after the picture in the network form is obtained through the subnet, the picture can be further decoded into a format suitable for transmission of unidirectional equipment, so that subsequent unidirectional transmission is facilitated. The unidirectional transmission device may comprise, for example, a unidirectional video line, or a unidirectional optical fiber comprising an optical fiber and a fiber isolator. The unidirectional transmission device may further include the video optical transceiver and a unidirectional optical fiber.
According to still further embodiments of the invention, the method may further comprise:
s29, 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 the interactive terminal through a network or outputting the network signal to the outside.
The 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 use of the terms first, second, etc. in the foregoing is intended to facilitate the distinction between the control commands mentioned in the various steps of the text and is not intended to emphasize the essential difference between the two, e.g., the control commands in the form of the first and second network signals are not intended to emphasize the formal difference between the network signal form herein and the network signal form herein below.
In the above embodiments, the unidirectional optical fiber may include an optical fiber and a fiber isolator (or optical gate or isolator) for implementing unidirectional transmission of an optical signal on the optical fiber, wherein an opposite optical signal is isolated. The transmission distance of the unidirectional optical fiber can be obviously greater than that of the serial port line, namely, the transmission distance of the signal on the unidirectional optical fiber is obviously greater than that 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 existence of the serial port line is reduced as much as possible.
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.
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.
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 (10)
1. Photoelectric return partition interaction system for interacting signal sources in each subnet, comprising:
the system comprises an interactive terminal, network-to-serial equipment, serial-to-optical fiber equipment corresponding to each subnet, optical fiber-to-serial equipment corresponding to each subnet, serial-to-network equipment and forwarding equipment which are positioned in each subnet; the network serial-to-serial device and the serial-to-optical fiber device are connected by a one-way serial port line, the serial-to-optical fiber device and the optical fiber serial-to-serial device are connected by a one-way optical fiber, and the optical fiber serial-to-serial device and the serial-to-network device are connected by a one-way serial port line;
the interactive terminal is used for sending a control command for a target signal source in a target subnet to the network string converting device through a network;
the network-to-serial equipment is used for receiving the control command through a network, converting the control command into a serial port signal and sending the serial port signal to the serial port-to-optical fiber equipment corresponding to the target subnet through the unidirectional serial port line;
the serial port-to-optical fiber equipment is used for receiving the serial port signal, converting the serial port signal into an optical signal and sending the optical signal to the optical fiber-to-serial port equipment corresponding to the target subnet through the unidirectional optical fiber;
the optical fiber serial port conversion device is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to a serial port conversion network device in the target subnet through a one-way serial port line;
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 used for receiving the control command sent by the serial-to-network device through the target subnet and forwarding the control command to the target signal source through the unidirectional serial port line.
2. The optoelectronic backhaul partition interaction system according to claim 1, wherein the signal source comprises a webcam, and the control target signal source comprises on/off, focus adjustment, and view angle conversion of the webcam.
3. Photoelectric return partition interaction system for interacting signal sources in each subnet, comprising:
the system comprises an interactive terminal, network-to-serial equipment, serial-to-optical fiber equipment corresponding to each subnet, optical fiber-to-serial equipment corresponding to each subnet, unidirectional transmission equipment, serial-to-network equipment and forwarding equipment which are positioned in each subnet; the network serial-to-serial device and the serial-to-optical fiber device are connected by a one-way serial port line, the serial-to-optical fiber device and the optical fiber serial-to-serial device are connected by a one-way optical fiber, and the optical fiber serial-to-serial device and the serial-to-network device are connected by a one-way serial port line;
the interactive terminal is used for sending a control command for a target signal source in a target subnet to the network string converting device through a network;
the network-to-serial equipment is used for receiving the control command through a network, converting the control command into a serial port signal and sending the serial port signal to the serial port-to-optical fiber equipment corresponding to the target subnet through the unidirectional serial port line;
the serial port-to-optical fiber equipment is used for receiving the serial port signal, converting the serial port signal into an optical signal and sending the optical signal to the optical fiber-to-serial port equipment corresponding to the target subnet through the unidirectional optical fiber;
the optical fiber serial port conversion device is used for receiving the optical signal, converting the optical signal into a serial port signal and sending the serial port signal to a serial port conversion network device in the target subnet through a one-way serial port line;
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.
4. The optoelectronic backhaul partition interaction system of claim 3, further comprising 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.
5. The optoelectronic backhaul partition interaction system according to claim 4, 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, and information of a port on a network switching device corresponding to a forwarding device in the target subnet; 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 equipment comprises a unidirectional video line, or the unidirectional transmission equipment comprises a video optical transceiver and a unidirectional optical fiber.
6. The optoelectronic backhaul partition interaction system according to one of claims 1-5, wherein the 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 unidirectional optical fiber comprises an optical fiber and an optical fiber isolator; the forwarding device includes a forwarding computer.
7. A photoelectric return separation interaction method for interacting signal sources in each subnet comprises the following steps:
acquiring a control command in a first network signal form, which is sent by an interactive terminal and used for a target signal source in a target subnet, through a network;
converting the control command in the form of the first network signal into a first serial port signal;
transmitting the first serial port signal by using a first unidirectional serial port line;
converting the first serial port signal into an optical signal after the first serial port signal is transmitted for a distance;
transmitting the optical signal using a unidirectional optical fiber;
converting the optical signal into a second serial port signal after the optical signal is transmitted for a certain distance;
transmitting the second serial port signal by using a second unidirectional serial port line;
converting the second serial port signal into a control command in a second network signal form after the second serial port signal is transmitted for a certain distance; and
controlling the target signal source through the target subnet according to the control command in the form of the second network signal; or forwarding the control command to the target signal source through the target subnet according to the control command in the form of the second network signal; or forwarding the control command in the form of the second network signal to the target signal source through the third unidirectional serial port line.
8. A photoelectric return separation interaction method for interacting signal sources in each subnet comprises the following steps:
acquiring a control command in a first network signal form, which is sent by an interactive terminal and used for a target signal source in a target subnet, through a network;
converting the control command in the form of the first network signal into a first serial port signal;
transmitting the first serial port signal by using a first one-way serial port line corresponding to a target subnet;
converting the first serial port signal into an optical signal after the first serial port signal is transmitted for a distance;
transmitting the optical signal by using a unidirectional optical fiber corresponding to a target subnet;
converting the optical signal into a second serial port signal after the optical signal is transmitted for a certain distance;
transmitting the second serial port signal by using a second one-way serial port line corresponding to the target subnet;
and after the second serial port signal is transmitted for a certain distance, converting the second serial port signal into a control command in a second network signal form, 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 equipment.
9. The optoelectronic backhaul partition interaction method of claim 8, the method comprising:
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 the interactive terminal through a network or outputting the network signal to the outside.
10. The optoelectronic backhaul partition interaction method according to claim 7, 8, or 9, wherein the signal source comprises: 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.
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