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Display control card, display control system and vehicle

A display control card and display control technology, applied in transmission systems, digital transmission systems, digital output to display devices, etc., can solve the problems of increased cost, network delay and high cost, network paralysis, etc., and achieve high reliability and low cost. Low, the effect of improving reliability

Pending Publication Date: 2020-06-23
XIAN NOVASTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this way of connecting multiple terminals has the following disadvantages: 1. The reliability of the network interface is not high. If the interface is loose or falls off, the PC software will not be able to operate the terminal; 2. The network delay and cost are high, and cascading in some occasions Multi-level switches not only increase the cost, but also cause obvious network delays when controlling and sending signals to the terminal
3. When the switch equipment fails, the entire network will be paralyzed

Method used

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  • Display control card, display control system and vehicle
  • Display control card, display control system and vehicle
  • Display control card, display control system and vehicle

Examples

Experimental program
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Effect test

no. 1 example

[0044] Such as figure 1 As shown, the first embodiment of the present invention provides a display control card 1, including: a processor 10 (such as an ARM9 processor), and a memory 20 (such as a NandFlash memory) connected to the processor 10 respectively, a programmable logic device 30 (such as FPGA) and Ethernet module 40.

[0045]Wherein, the programmable logic device 30 is used for outputting display data and display control signals, and the Ethernet module 40 includes: an Ethernet switch chip 41, a network port 42 and a network port 43, and the Ethernet switch chip 41 is connected to the processor 10 and used It is used to send the data belonging to the display control card 1 (that is, the data that needs to be processed into display data and display control signals by the processor 10 and the programmable logic device 30 of the display control card 1) to the processor 10 and send the data not belonging to the display control card The data of 1 is forwarded; the networ...

no. 2 example

[0053] to combine Figure 4A with figure 1 , figure 2 and Figure 3A As shown, the second embodiment of the present invention provides a display control system 100, including: a switch 200 supporting the STP function, a plurality of display control cards 300 are connected to ports of the switch 200, and each display control card 300 can adopt the aforementioned first In the example related to figure 1 , figure 2 or Figure 3A The display control card 1, so its specific structure will not be repeated here. Each display control card 300 is sequentially connected in series through a network cable and its respective network port 42 and / or network port 43, and the display control cards 300 located at the beginning and the end of the multiple display control cards 300 connected in sequence are respectively connected through a network cable and their respective network ports 42. Or the network port 43 is connected to the switch 200 to form a loop.

[0054] It should be noted...

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PUM

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Abstract

The embodiment of the invention discloses a display control card, a display control system adopting the display control card and a vehicle. The display control card comprises a processor, a memory, aprogrammable logic device and an Ethernet module, wherein the memory, the programmable logic device and the Ethernet module are respectively connected with the processor. The programmable logic deviceis used for outputting display data and display control signals. The Ethernet module comprises an Ethernet switching chip which is connected with the processor and is used for sending data belongingto the display control card to the processor and forwarding data not belonging to the display control card. The first network port is connected with the Ethernet switching chip; and the second networkport is connected with the Ethernet switching chip. The display control system provided by the embodiment of the invention is relatively low in cost and relatively high in reliability.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display control card, a display control system and a vehicle. Background technique [0002] In some multi-terminal situations, in order to facilitate unified management, switches are usually used to cascade these terminals, through which the access information can be regenerated, and then forwarded to the designated port through internal processing to achieve automatic addressing and switching. function, so as to avoid the problem of port conflicts, prevent transmission conflicts, and improve network throughput, so that it is easy to use PC software for display control and management. In addition, since the communication distance of the twisted pair (network communication transmission medium) is only 100 meters, in some occasions where the distance between terminals is relatively far, it is necessary to add switches for cascading relays, which can not only increase the number ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/14H04L12/939H04L12/46
CPCG06F3/1454H04L49/55H04L12/462
Inventor 苟超谢君韩丹
Owner XIAN NOVASTAR TECH