Device for expanding semaphore acquisition port

A technology for expanding signals and ports, applied in logic circuit connection/interface layout, program control in sequence/logic controllers, electrical program control, etc., can solve problems such as waste of money and time, and achieve high compatibility and strong resistance. Interference ability, the effect of convenient physical expansion

Inactive Publication Date: 2012-07-25
北京瀚景锦河科技有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

When the existing equipment in the project cannot meet the requirements of use with the expansion of the project scale and function expansion, redesigning

Method used

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  • Device for expanding semaphore acquisition port
  • Device for expanding semaphore acquisition port
  • Device for expanding semaphore acquisition port

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Embodiment Construction

[0036] The technical solutions, advantages and beneficial effects of the present invention will be described in detail below with reference to the accompanying drawings and in combination with preferred embodiments of the present invention. The same or similar reference numerals in the specification denote the same and similar units or components.

[0037] figure 1 A structural block diagram of the extension device 100 according to Embodiment 1 of the present invention is schematically shown. The extension device 100 includes a logic device 110 , an analog quantity acquisition unit 120 , a switch quantity input and output unit 130 , and a first communication interface 102 for communicating with a host computer 101 . The logic device 110 may be a programmable logic device or a microcontroller. The extension device 100 may further include an isolated power supply 303 connected to the host computer 101 or the independent power supply 105 . Preferably, the extension device 100 ...

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PUM

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Abstract

The invention relates to a device for expanding a semaphore acquisition port. The device comprises a first communication interface, a logic device, one or more analog quantity acquisition units and/or one or more switching value input/output units, wherein the first communication interface communicates with an upper computer; and the logic device is in communication coupling with the first communication interface. Each analog quantity acquisition unit is provided with one or more analog quantity input ports, and is used for acquiring one or more analog quantity signals to the logic device and configuring the analog quantity input ports through a control signal from the logic device. Each switching value input/output unit is provided with one or more switching value input/output ports. According to the expanding device provided by the invention, the semaphore acquisition port of the existing hardware equipment can be expanded through simple physical line connection.

Description

technical field [0001] The invention relates to an expansion device. More specifically, the present invention relates to a device for expanding a semaphore collection port. Background technique [0002] In the fields of industry, agriculture, animal husbandry, etc., more and more devices that can collect a large number of analog signals and switching signals are required. When the existing equipment in the project cannot meet the requirements of use with the expansion of the project scale and function expansion, redesigning or modifying the equipment hardware will cause a waste of money and time. An expansion device and an expansion method for expanding a port for collecting signals. Such an expansion device needs to have the characteristics of low pin count, flexibility, and ease of development, and the ability to further adjust the number of ports according to actual needs. [0003] In the prior art, embedded devices are usually used for on-site data collection and cont...

Claims

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Application Information

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IPC IPC(8): G05B19/04H03K19/0175
Inventor 胡伯平呼大明郑海鸥倪骏于天歌何畅徐昕卢吟
Owner 北京瀚景锦河科技有限公司
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