A Simple Serial Communication Device
A technology of serial port communication and equipment, applied in the field of serial port communication, can solve the problems of on-site communication routing that cannot realize self-healing ring network structure, serial port communication speed, low correct rate, and inconvenient expansion of serial port number, etc., and is suitable for large-scale promotion It is easy to use and expand, and the effect of reducing on-site usage
Active Publication Date: 2018-08-03
SICHUAN ZILIN XIAOTONG TECH CO LTD
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Problems solved by technology
[0008] The purpose of the present invention is to provide a simple serial communication device, which mainly solves the problem of high cost of on-site wiring for the expansion of the existing computer serial communication, inconvenient expansion of the number of serial ports, low rate and correct rate of serial communication, and failure of on-site communication routing to realize self-healing Problems with the ring network structure
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[0026] Such as figure 1 As shown, a simple serial port communication device includes a computer, a serial port expansion master station, a substation, and a serial port device, wherein the computer and the serial port expansion master station are directly connected through a network cable or connected through a switching network. Based on the following improvements:
[0027] There are multiple sub-stations, which are connected in series with each other through a high-speed bus and then connected to the serial port expansion master station to form a high-speed bus network. It is not necessary for each sub-station to be separately connected to the serial port expansion master station. The number of substations is the total number of virtual serial ports that the computer can access. The function of the substation is to transfer the data of the low-speed bus to the high-speed bus. The substation is a bridge between the low-speed bus and the high-speed bus. For users, it is not ne...
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The invention discloses a simple serial communication device. Including computer, serial port extension master station, sub-station, serial port equipment, among them, the computer and serial port extension master station are directly connected through a network cable or connected through a switching network; there are multiple sub-stations, which are connected in series with each other through a high-speed bus and connected to the serial port extension master station. Station connection to form a high-speed bus network; there are multiple serial devices, and the communication port of more than one serial device is connected to a substation to form a low-speed serial communication network, which is connected to the high-speed bus through the substation; the computer connects multiple Each serial port device is deployed in one-to-one correspondence to realize the direct communication between the computer and multiple serial port devices. The invention simplifies the workload of engineering installation and wiring, the installation and wiring are simple and convenient, saves engineering construction time and is not easy to make mistakes, has high communication speed and correct rate, greatly saves wiring costs, and is convenient for later maintenance.
Description
technical field [0001] The invention relates to a simple serial port communication device, which belongs to the field of serial port communication. Background technique [0002] There are generally two options for the expansion of the mainstream computer serial port communication in the market: the first is to install an expansion card (such as a multi-serial port card) on the motherboard of the computer to expand several serial ports on the motherboard; the second is to use an external The equipment (such as serial port server) virtualizes the network port of the computer into multiple serial ports. These two technologies are similar in the networking mode between the computer and the on-site serial device. Each serial device needs to be directly and separately connected to the computer motherboard or external device (serial server). Manufacturers of this type of serial port expansion equipment include MOXA in Taiwan, Kanghai and Dolphin in mainland China, etc. The product...
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IPC IPC(8): H04L12/02H04L12/40
Inventor 李保维
Owner SICHUAN ZILIN XIAOTONG TECH CO LTD