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Universal serial port conversion and data acquisition card (DAC)

A technology of data acquisition card and general serial port, applied in the field of serial port conversion and data acquisition card, can solve the problems of low transmission speed, low reliability of data transmission, short transmission distance, etc., to enhance versatility, increase data transmission distance, The effect of increasing data transfer speed

Inactive Publication Date: 2011-06-01
贵州航天控制技术有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the present invention provides a universal serial port conversion and data acquisition card with a TCP / IP communication interface, which solves the problem of short transmission distance and low reliability of data transmission when exchanging data between the product and the test PC. low transfer speed

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  • Universal serial port conversion and data acquisition card (DAC)
  • Universal serial port conversion and data acquisition card (DAC)
  • Universal serial port conversion and data acquisition card (DAC)

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it is not used as a basis for any limitation of the present invention.

[0019] figure 1 It is a block diagram of the present invention, the general serial port conversion and data acquisition card 2 of the present invention is mainly composed of a serial port module and a network card module, and the product under test 1 is connected with the serial port module through the test interface for receiving the test of the product under test 1 Data packet, the serial port module sends the received test data packet to the data acquisition module through its serial port, and the data acquisition module collects the analog quantity output by the product and its own power supply analog quantity through its built-in A / D chip, and transmits the serial port module The data packet is sent to the PC 3 through the network card module, and at the same time,...

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Abstract

The invention provides a universal serial port conversion and data acquisition card (DAC), mainly comprising a serial port module, a data acquisition module and a network card module. A tested product is connected with the serial port module by a test port, which is used for receiving the test data packets of the tested product; the serial port module sends the received test data packets to the data acquisition module by a serial port of the serial port module; and the data acquisition module collects analog quantity and self-power analog quantity output by the product through a built-in A / D chip of the data acquisition module, sends the data packets transmitted by the serial port module to a personal computer (PC) by the network card module, and receives instruction protocol packets from the PC as well as sends the decoded instruction protocol packets to the serial port module. The universal serial port conversion and data acquisition card provided by the invention is used to solve the problems of short transmission range, low reliability of data transmission, low transmission speed and the like when the product performs data exchange with the PC.

Description

technical field [0001] The invention relates to a serial port conversion and data acquisition card, in particular to a universal serial port conversion and data acquisition card with a TCP / IP communication interface. Background technique [0002] In the data exchange between the product and the test PC, the test equipment is often used to receive the data output by the asynchronous serial interface of the product. After the test equipment receives the test data, the RS-232 interface and the USB interface are generally used to transmit and collect data. However, the use of these two technical solutions to transmit data has the following disadvantages: ① When using RS-232 serial port to transmit data, the transmission distance is short, the reliability of data transmission is not high, and the transmission speed is low. In addition, there are RS-232 serial ports The problem of being gradually eliminated on the PC; ②When using the USB interface to transmit data, the transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C19/00H04L29/06G06F13/38
Inventor 刘生攀朱亮
Owner 贵州航天控制技术有限公司
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