CN213694226U - Poe-based transmitting card power supply and control system - Google Patents
Poe-based transmitting card power supply and control system Download PDFInfo
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- CN213694226U CN213694226U CN202022799713.2U CN202022799713U CN213694226U CN 213694226 U CN213694226 U CN 213694226U CN 202022799713 U CN202022799713 U CN 202022799713U CN 213694226 U CN213694226 U CN 213694226U
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Abstract
The utility model relates to a send card power supply and control system based on poe, including the terminal control equipment who issues the display control data, forward the poe switch and the sending card that show the control data and supply power for sending card, wherein: poe, the input end of the switch is connected with the output end of the terminal control equipment through a first network cable, and the output end of the poe switch is connected with the input end of the sending card through a second network cable; the input end of the sending card is connected with the anode of the poe switch through the pins 4 and 5 of the second network cable and is connected with the cathode of the poe switch through the pins 7 and 8 of the second network cable, and the output end of the sending card is connected with the receiving card arranged in each LED box of the LED display screen. The utility model provides a send card power supply and control system need not to use extra power supply unit to supply power for sending card, simplifies system circuit structure, saves the hardware cost, is connected through the net twine between terminal control equipment and the sending card in addition, also can realize remote data transmission control.
Description
Technical Field
The utility model relates to a LED display screen technical field especially relates to a send card power supply and control system based on poe.
Background
At present, a user issues display control data through terminal control equipment such as computer equipment, the display control data is issued to a sending card through a usb data line, and the sending card sends the display control data to receiving cards in all LED boxes of an LED display screen, so that the display control of the LED display screen is realized.
However, since the usb data line has a length limit (less than or equal to 10m), it cannot meet the scenario of remote transmission, and the usb data transmission cannot meet the scenario of remote network control, and meanwhile, the power supply of the transmitting card needs to be connected to a special power supply device, which results in a complex circuit structure. Therefore, there is a need in the art to find a new system to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Realize the LED display screen simultaneously and show the remote transmission of control data in order to simplify circuit structure, the utility model provides a send card power supply and control system based on poe.
The utility model provides a send card power supply and control system based on poe, including the terminal control equipment who issues the display control data, forward the poe switch and the sending card that show the control data and supply power for sending card, wherein: poe, the input end of the switch is connected with the output end of the terminal control equipment through a first network cable, and the output end of the poe switch is connected with the input end of the sending card through a second network cable; the input end of the transmitting card is connected with the anode of the poe switch through pins 4 and 5 of the second network cable and is connected with the cathode of the poe switch through pins 7 and 8 of the second network cable; the output end of the sending card is connected with the receiving card arranged in each LED box body of the LED display screen.
Further, the system also comprises a power supply device for supplying power to the poe switch, wherein the power supply device is electrically connected with the poe switch.
Furthermore, the output end of the poe switch is provided with a plurality of output network ports, the number of the second network lines is 1 or more, each second network line is connected to one output network port of the poe switch, and the number of the second network lines is determined according to the maximum output power of each output network port of the poe switch and the use power of the transmitting card.
Further, under the condition that the system adopts the standard of IEEE802.3at, the using power of the sending card is not less than 50W, and the maximum output power of each output network port of the poe switch is not more than 30W, the number of the second network lines is 2.
Furthermore, the sending card is provided with an input sub-board for receiving display control data, an output sub-board for distributing the display control data and a control main board for controlling the power on and off of a power chip where the input sub-board or the output sub-board is located after receiving a power control instruction sent by the terminal control equipment; one end of the input sub-board is connected with the second network cable, the other end of the input sub-board is connected with the output sub-board, the output sub-board is connected with the receiving card through the third network cable, and the control main board is respectively connected with the input sub-board and the output sub-board.
Further, the number of the second network lines is determined according to poe the maximum output power of each output network port of the switch and the use power of the input sub-board and the output sub-board.
Furthermore, the input sub-board is provided with a plurality of input ports of the same type, the output sub-board is provided with a plurality of output ports of the same type; the types of the input ports comprise a DVI input port, a VGA input port, an HDMI input port and a CVBS input port, and the types of the output ports comprise a DVI output port and a VGA output port.
Further, the standard adopted by the system is the ieee802.3af standard or the ieee802.3at standard.
The utility model provides a send card power supply and control system based on poe has following beneficial effect at least: the utility model provides an among poe's the card power supply of sending and control system, be connected through net twine and poe switch between terminal control equipment and the sending card, realized showing the remote transmission of control data, utilize the poe switch, supply power to the sending card simultaneously at the in-process that shows control data transmission, need not to reuse extra power supply equipment and supply power to the sending card, simplified circuit structure.
Drawings
For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a power supply and control system of a transmitting card based on poe according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a power supply and control system of a transmitting card based on poe according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a power supply and control system of a transmitting card based on poe according to another embodiment of the present invention;
the system comprises 1-terminal control equipment, 2-poe switches, 3-sending cards, 4-first network cables, 5-second network cables, 6-power supply equipment, 301-input sub-boards, 302-output sub-boards and 303-control main boards.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In an embodiment of the present invention, as shown in fig. 1, the poe-based transmitting card power supply and control system includes a terminal control device 1 for issuing display control data, a poe switch 2 for forwarding the display control data and supplying power to the transmitting card, and a transmitting card 3. poe the input end of the switch 2 is connected with the output end of the terminal control device 1 through the first network cable 4, the output end of the poe switch 2 is connected with the input end of the sending card 3 through the second network cable 5; the input end of the sending card 3 is connected with the anode of the poe switch through pins 4 and 5 of the second network cable and is connected with the cathode of the poe switch through pins 7 and 8 of the second network cable; the output end of the sending card 3 is connected with a receiving card arranged in each LED box body of the LED display screen.
Specifically, the terminal control device 1 is a computer device, the output end of the sending card 3 is connected to the receiving card arranged in each LED box of the LED display screen, and is an essential hardware device when the LED display screen displays, and can acquire display control data such as control data (control data such as screen brightness, screen color temperature, program playing time, program playing sequence, etc.), video data or other picture data to be displayed, and then process the acquired display control data and send the processed display control data to the receiving card arranged in each LED box of the LED display screen and connected to each LED box of the LED display screen, so that the LED display screen realizes the whole screen display.
In the present embodiment, the user uses the terminal control device 1 to transmit display control data to the transmission card 3 of the LED display screen, and the display content of the LED display screen and display parameters such as screen brightness and color temperature are controlled by the transmission card 3. The terminal control device 1 is connected with the sending card 3 through the first network cable 4, the poe switch 2 and the second network cable 5, compared with the USB data line connection, the network cable connection mode can realize remote transmission of display control data, and further realize remote network control operation of the LED display screen.
In addition, poe (Power Over Ethernet, active Ethernet) refers to a technology for providing direct current for some IP-based terminals (such as IP phones, wireless lan access points AP, webcams, etc.) while transmitting data signals for such devices without any modification of the existing Ethernet cat.5 wiring infrastructure, and poe technology can ensure the safety of the existing structured wiring and ensure the normal operation of the existing network, thereby reducing the cost to the maximum extent. The poe switch is a power over ethernet enabled switch. In this embodiment, poe switch 2 is provided between the terminal control device 1 and the transmitting card 3, the switch poe obtains the display control data sent by the terminal control device 1 through the first network cable 4, and forwards the display control data to the transmitting card 3 through pins 1, 2, 3, and 6 of the second network cable 5, and simultaneously supplies power to the transmitting card 3 through pins 4, 5, 7, and 8 of the second network cable 5, the poe switch serves as a power supply terminal device, and the transmitting card serves as a power receiving terminal device. Because the poe-based transmitting card power supply and control system provided in the embodiment directly supplies power to the transmitting card through the network cable by using the poe switch, a power supply device special for supplying power to the transmitting card can be eliminated, extra power supply wiring is omitted, the circuit structure of the system is simplified, and the hardware setting cost is saved.
Further, the poe switch 2 may power on or off the transmitting card by disconnecting the network (physically disconnecting the network or setting a network port in the terminal control device 1 to disconnect the network). The transmitting card is powered off when not in use to conserve power resources to the greatest extent.
In another embodiment of the present invention, as shown in fig. 2, the system further includes a power supply device 6 for supplying power to the poe switch, the power supply device 6 is electrically connected to the poe switch 2, and the power supply device 6 is used for supplying power to the poe switch 2, so as to supply power to the transmitting card 3 by the poe switch 2, and provide the power required for the operation of the transmitting card 3. Of course, in addition to this, poe switch 2 may also have a battery built in to enable poe switch 2 to power transmitting card 3 to provide the power needed to operate transmitting card 3.
In another embodiment of the present invention, the output end of the poe switch is provided with a plurality of output ports, the number of the second network cables 5 is 1 or more, and the number of the second network cables 5 is determined according to the maximum output power of each output port of the poe switch 2 and the power usage of the transmission card 3. Specifically, when the system adopts the ieee802.3at standard, the maximum output power of each output port of the poe switch 2 does not exceed 30W, and the power used by the transmitting card 3 is not less than 50W, the number of the second network cables 5 is 2.
In another embodiment of the present invention, as shown in fig. 3, the sending card is provided with an input daughter board 301 for receiving display control data, an output daughter board 302 for distributing display control data, and a control main board 303 for controlling the power on/off of the power chip where the input daughter board or the output daughter board is located after receiving the power control command issued by the terminal control device 1; the input sub-board 301 is connected to the second network cable 5 and the output sub-board 302, the output sub-board 302 is connected to the receiving card through a third network cable, and the control main board 303 is connected to the input sub-board 301 and the output sub-board 302, respectively. Specifically, the input daughter board 301 and the output daughter board 302 are FPGA chips. Specifically, in this embodiment, the number of the second network lines 5 is 1 or more, the number of the second network lines 5 is determined according to the maximum output power of each output network port of the poe switch and the power consumption of the input daughter board 301 and the output daughter board 302, and the power supplied by the second network lines is greater than the sum of the power consumption of the input daughter board 301 and the power consumption of the output daughter board 302.
More specifically, in the transmitting card 3, the input daughter board 301 is provided with a plurality of input ports of the same type, each input daughter board is provided with a plurality of input ports of the same type, the output daughter board 302 is also provided with a plurality of output ports of the same type, and each output daughter board is provided with a plurality of output ports of the same type. The types of the input ports comprise a DVI input port, a VGA input port, an HDMI input port and a CVBS input port, and the types of the output ports comprise a DVI output port and a VGA output port. In practical applications, technicians can select multiple input daughter boards with different types of input ports or multiple output daughter boards with different types of output ports to be disposed in the transmitting card 3 according to actual needs. A plurality of input daughter boards with different types of input ports are arranged in the invention card 3, and each input daughter board is provided with a plurality of input ports of the same type, so that the input daughter board can be conveniently connected with a plurality of external devices with different interface types or a plurality of external devices with the same interface type, other external devices (i.e. other terminal control devices) are connected to the input ports on the input daughter board 301, and as long as the interfaces are matched, the display control data can be sent to the input daughter board 301 of the sending card 3, thereby realizing the display control of the LED display screen. A plurality of output sub-boards with different types of output ports are arranged in the sending card 3, and each output sub-board is provided with a plurality of output ports of the same type, so that multiple outputs to an LED display screen consisting of a plurality of LED boxes are facilitated.
Further, the standard adopted by the system is the ieee802.3af standard or the ieee802.3at standard. The maximum output power of the poe switch is 15.4W by adopting the ieee802.3af standard, the maximum output power of the poe switch is 30W by adopting the ieee802.3at standard, and therefore, in order to meet the requirement of a high-power terminal, in the embodiment, the system preferably adopts the ieee802.3at standard.
The utility model provides a send out card power supply and control system based on poe lets poe switch as the feeder terminal equipment, lets send out the card as the receiving terminal equipment, realizes the independent power supply to sending out the card, need not to set up extra power supply equipment for sending out the card again, simplifies system circuit structure, saves the hardware and sets up the cost. In addition, the terminal control equipment is connected with the sending card through the first network cable, the poe switch and the second network cable, so that display control data can be transmitted remotely, and remote network control is realized.
The terms and expressions used in the specification of the present invention are used for illustration only and are not meant to be limiting. It will be appreciated by those skilled in the art that changes could be made to the details of the above-described embodiments without departing from the underlying principles thereof. The scope of the invention is, therefore, to be determined only by the following claims, in which all terms are to be interpreted in their broadest reasonable sense unless otherwise indicated.
Claims (8)
1. A poe-based transmitting card power supply and control system is characterized in that the system comprises a terminal control device for sending down display control data, a poe switch for forwarding the display control data and supplying power to a transmitting card and the transmitting card, wherein:
the input end of the poe switch is connected with the output end of the terminal control equipment through a first network cable, and the output end of the poe switch is connected with the input end of the sending card through a second network cable;
the input end of the transmitting card is connected with the positive pole of the poe switch through pins 4 and 5 of the second network wire and is connected with the negative pole of the poe switch through pins 7 and 8 of the second network wire;
the output end of the sending card is connected with a receiving card arranged in each LED box body of the LED display screen.
2. The poe-based transmitter card power and control system of claim 1, further comprising a power device to power the poe switch, the power device being electrically connected to the poe switch.
3. The poe-based transmitter card power supply and control system according to claim 1, wherein the output of the poe switch is provided with a plurality of output ports, the number of the second wires is 1 or more, each of the second wires is connected to one output port of the poe switch, and the number of the second wires is determined according to the maximum output power of each output port of the poe switch and the power usage of the transmitter card.
4. The poe-based transmitting card power supply and control system according to claim 3, wherein the number of the second network cables is 2 in case that the system adopts IEEE802.3at standard, the used power of the transmitting card is not less than 50W, and the maximum output power of each output network port of the poe switch is not more than 30W.
5. The poe-based transmitting card power supply and control system according to claim 4, wherein the transmitting card is provided with an input daughter board for receiving display control data, an output daughter board for distributing display control data, and a control motherboard for controlling the power on/off of a power chip on which the input daughter board or the output daughter board is located after receiving a power control instruction issued by the terminal control device;
one end of the input sub-board is connected with the second network cable, the other end of the input sub-board is connected with the output sub-board, and the output sub-board is connected with the receiving card through a third network cable;
the control main board is respectively connected with the input sub-board and the output sub-board.
6. The poe-based transmitter card power supply and control system of claim 5, wherein the number of second wires is determined by the maximum output power per output port of the poe switch and the power usage of the input daughter board and the output daughter board.
7. The poe-based transmitter card power supply and control system according to claim 6, wherein the input daughter board is multiple, each input daughter board is provided with a plurality of input ports of the same type, the output daughter board is multiple, each output daughter board is provided with a plurality of output ports of the same type; the types of the input ports comprise a DVI input port, a VGA input port, an HDMI input port and a CVBS input port, and the types of the output ports comprise a DVI output port and a VGA output port.
8. Poe-based transmitter card power supply and control system according to claim 1, characterized in that the standard adopted by the system is the IEEE802.3af standard or the IEEE802.3at standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022799713.2U CN213694226U (en) | 2020-11-28 | 2020-11-28 | Poe-based transmitting card power supply and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022799713.2U CN213694226U (en) | 2020-11-28 | 2020-11-28 | Poe-based transmitting card power supply and control system |
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| Publication Number | Publication Date |
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| CN213694226U true CN213694226U (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022799713.2U Active CN213694226U (en) | 2020-11-28 | 2020-11-28 | Poe-based transmitting card power supply and control system |
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| CN (1) | CN213694226U (en) |
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