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Signal acquisition board suitable for multi-bus protocol and multi-expansion interface

A signal acquisition board and expansion interface technology, which is applied to the program control and electrical program control of the sequence/logic controller, can solve the problem of no signal acquisition board compatible with multiple bus protocols, and achieve the effect of improving efficiency

Active Publication Date: 2016-09-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that most signal acquisition boards on the market are based on a single PCI, PXI or ISA bus, and there is no signal acquisition board that can be compatible with multiple bus protocols, and a method suitable for multi-bus protocols is provided. , signal acquisition board with multiple expansion interfaces

Method used

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  • Signal acquisition board suitable for multi-bus protocol and multi-expansion interface
  • Signal acquisition board suitable for multi-bus protocol and multi-expansion interface

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specific Embodiment approach 1

[0017] Specific implementation mode one: the following combination figure 1 Describe this embodiment, the signal acquisition board that this embodiment is applicable to multi-bus protocol, multi-expansion interface, it comprises FPGA module 1, DSP module 2, m RS422 module 3, universal expansion interface 4, the first level Conversion module 5, second level conversion module 6, n optical fiber transceiver chips 7, n optical fiber interface modules 8, p AD acquisition chips 9, bus interface module 11, PCI bus switching circuit board 12, PXI bus switching Circuit board 13, ISA bus adapter circuit board 14 and VME bus adapter circuit board 15;

[0018] The data transmission end of FPGA module 1 is connected with the data transmission end of DSP module 2;

[0019] The input and output terminals of each RS422 module 3 are connected with the input and output terminals of a dual-port RAM of the FPGA module 1;

[0020] The input and output ends of the universal expansion interface 4 ...

specific Embodiment approach 2

[0031] Specific embodiment two: this embodiment will further illustrate embodiment one, and it also includes clock module 16, and clock module 16 provides clock signal for FPGA module 1, DSP module 2 and n optical fiber interface modules 8.

specific Embodiment approach 3

[0032] Embodiment 3: This embodiment will further explain Embodiment 1 or 2. It also includes a debugging interface 10, which is connected to the data input and output terminals of p AD acquisition chips 9 at the same time.

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Abstract

The signal acquisition board suitable for multi-bus protocols and multiple expansion interfaces belongs to the field of signal acquisition for high-precision motion control. The present invention solves the problem that most signal acquisition boards currently on the market are based on a single PCI, PXI or ISA bus. The problem of signal acquisition boards compatible with multiple bus protocols. The present invention includes an FPGA module, a DSP module, m RS422 modules, a general extension interface, a first level conversion module, a second level conversion module, n optical fiber transceiver chips, n optical fiber interface modules, p AD acquisition chips, Bus interface module, PCI bus adapter circuit board, PXI bus adapter circuit board, ISA bus adapter circuit board and VME bus adapter circuit board; it is convenient to communicate with other signal acquisition units or expand other sensor modules. At the same time, the signal acquisition board also reserves a custom bus interface, which is convenient for users to customize the bus according to their own needs.

Description

technical field [0001] The invention relates to an industrial computer chassis board, in particular to a signal acquisition board for a VME bus, and belongs to the field of signal acquisition for high-precision motion control. . Background technique [0002] Most of the signal acquisition boards currently on the market use the PCI bus or the ISA bus. Among them, Zhang Enquan and others of Shaanxi Haitai Electronics Co., Ltd. applied for the Chinese patent "Multi-channel Dynamic Signal Acquisition Card Based on PXI Bus", the publication number is CN103324132A, and the publication date is September 25, 2013. The patent uses the PXI bus method, the publication number of the Chinese patent "Dual-mode Signal Acquisition Board" applied by Beijing Institute of Technology Liu Manguo and others is CN101587498, and the publication date is November 25, 2009. The publication number of the Chinese patent "A Signal Acquisition Board Based on Compact PCI Bus" applied by Cheng et al. is C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04
Inventor 刘杨李理徐加彦付振宪谭久彬
Owner HARBIN INST OF TECH
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