Data acquisition device and method for asynchronous communication based on programmable logic device

A technology of programming logic and data acquisition, applied in electrical digital data processing, instruments, etc., can solve the problems of poor anti-interference ability and low communication efficiency, and achieve the effect of strong environmental adaptability, stable work, and improved communication efficiency.

Active Publication Date: 2014-06-18
RIGOL
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  • Abstract
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Problems solved by technology

[0009] The purpose of the present invention is to provide a data acquisition device and a communication method based on a programmable logic device for asynchronous

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  • Data acquisition device and method for asynchronous communication based on programmable logic device
  • Data acquisition device and method for asynchronous communication based on programmable logic device
  • Data acquisition device and method for asynchronous communication based on programmable logic device

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[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Figure 4 It is a schematic structural diagram of a data acquisition device for asynchronous communication based on a programmable logic device according to an embodiment of the present invention. As shown in the figure, the data acquisition device of this embodiment includes a data receiving main card 1, a data receiving sub-card 2, and a backplane 3. The backplane 3 is provided with a slot and a bus. When communicating, the data ...

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Abstract

The invention discloses a data acquisition device and method for asynchronous communication based on a programmable logic device. The data acquisition device comprises a data receiving master card and a data receiving daughter card, wherein the data receiving daughter card acquires data transmitted by the data receiving master card through a bus, the data receiving master card comprises a DSP controller, the data receiving daughter card comprises the programmable logic device, wherein the programmable logic device is in serial communication with the DSP controller. The programmable logic device comprises a receiving unit, an acquiring unit, a timing unit and a judgment unit. The timing unit is connected with the receiving unit and the acquiring unit and used for driving the receiving unit to receive communication data transmitted by the DSP controller and controlling multiple reading operations performed by the acquiring unit on the communication data within time width range per each bit, and after acquisition per bit time is finished, the judgment unit is used for judging a logic value of each acquired bit according to judgment results of multiple reading operations.

Description

technical field [0001] The present invention relates to the field of data communication, in particular to the field of data acquisition in the field of data communication, in particular to a data acquisition device for asynchronous communication based on a programmable logic device and a communication method thereof. Background technique [0002] Module card data acquisition and measurement devices are widely used in communication, medical, industrial automation and other fields. Module cards with different functions meet the needs of measurement system construction in different applications, and the flexible configuration mode is also convenient for users. [0003] figure 1 It is a schematic structural diagram of a data acquisition device in the prior art. As shown in the figure, during the operation of the data acquisition device, the information interaction between the data receiving main card and the data receiving sub-card depends on the communication / control bus. In ...

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Application Information

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IPC IPC(8): G06F13/20
Inventor 谭灵焱王悦王铁军李维森
Owner RIGOL
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