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Intelligent transmitter device with embedded DeviceNet field bus interface

A technology of field bus interface and intelligent transmitter, which is applied in the direction of using electric/magnetic devices to transmit sensing components, instruments, and electric digital data processing, etc., to achieve high real-time data processing capabilities and excellent communication anti-interference capabilities.

Inactive Publication Date: 2005-04-06
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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In the published patent literature, there is no content related to the intelligent transmitter device with DeviceNet field bus function

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  • Intelligent transmitter device with embedded DeviceNet field bus interface
  • Intelligent transmitter device with embedded DeviceNet field bus interface
  • Intelligent transmitter device with embedded DeviceNet field bus interface

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Embodiment Construction

[0023] A preferred example of the present invention is described in detail below in conjunction with accompanying drawing:

[0024] see figure 1 , The intelligent transmitter device with the DeviceNet field bus interface of this embodiment includes a DSP transmitter circuit, a DeviceNet bus interface circuit, a digital logic circuit and a power supply circuit.

[0025] The DSP transmitter circuit includes: a signal conditioning circuit interface 1, a multi-channel A / D converter and its voltage reference circuit 2, a DSP processor 3, a double-press keyboard 11, and an LCD display 12. The multi-channel A / D conversion chip simultaneously collects temperature, static pressure, and differential pressure signals, converts them into 14-bit high-precision digital quantities, and sends them to the DSP internal data storage through the synchronous serial port of the DSP chip, and then adopts digital signal processing methods. The data fusion algorithm combined with the set configuratio...

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Abstract

This invention relates to an imbedded DeviceNet spot bus interface intelligent transducer, which comprises the following: a DSP transducer circuit to translate multiple parameters into high accurate digit for process; one power circuit to translate twenty-four volt into five volt power wire 10 of spot bus 18 and to provide direct power to the transducer elements. It is characterized by the following: the said DSP transducer is connected with one DeviceNet bus interface circuit through high-speed asynchronous serial port 5; it has one digital logic circuit is connected with DSP transducer circuit and DeviceNet bus interface circuit to realize LCD control, address code and key logics.

Description

technical field [0001] The invention relates to a sensor or a transmitter with a field bus interface, in particular to an intelligent transmitter device embedded in a DeviceNet field bus interface. Background technique [0002] In recent years, field bus has become the dominant system structure form of industrial process measurement and control system. Under the requirements of the fieldbus system structure, industrial process sensors and their instruments must be intelligent (including digitization and fieldbus). The integration of sensors and transmitters with CPU as the processing core and digital communication as the transmission mode is the fieldbus intelligent transmitter, also known as the networked transmitter. [0003] The field bus intelligent transmitter requires the following characteristics: ① It can complete various complex calculations through the built-in high-performance processor and various application programs in the memory; it can perform different conf...

Claims

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Application Information

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IPC IPC(8): G01D5/12G06F13/38
Inventor 付敬奇王海宽费敏锐
Owner SHANGHAI UNIV
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