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Fast scanning detecting device of two-wire system industrial instrument and detecting method

A roving detection and two-wire technology, which is applied to measuring devices, instruments, measuring electronics, etc., can solve the problems of complex analysis and processing data, long test time, large errors, etc., and achieve flexible device connection, convenient troubleshooting and maintenance , the effect of improving the quality

Inactive Publication Date: 2010-01-13
SHANGHAI INST OF PROCESS AUTOMATION & INSTR
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The traditional detection method is that the tester manually selects the test instrument, reads the number of the instrument, and records and processes the data manually. , fast and efficient data collection, strong analysis and processing capabilities, etc., greatly improving the accuracy and efficiency of testing and reducing the work intensity of testers

Method used

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  • Fast scanning detecting device of two-wire system industrial instrument and detecting method
  • Fast scanning detecting device of two-wire system industrial instrument and detecting method
  • Fast scanning detecting device of two-wire system industrial instrument and detecting method

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Embodiment

[0037] Examples: Figure 8 , Picture 9 , Picture 10 It is a schematic diagram of an embodiment of the present invention. The whole system adopts master-slave box topology structure such as Figure 8 , Each cabinet adopts a modular design inside.

[0038] Such as Figure 8 It is a schematic diagram of the hardware system connection of the master-slave structure. The master box 801 is connected to the slave boxes 804 and 807 through the bus interface 802 and the bus 803, and the multi-box topology structure is expanded to detect more instruments. The slave boxes 804 and 807 can also be connected to the next level slave boxes 808 and 809, and so on.

[0039] Picture 9 It is a schematic diagram of the mechanical structure of an embodiment of the present invention. The figure shows an installation and arrangement of the entire hardware system: inside the box 921, a data acquisition board 919, signal sampling boards 917 and 923 are installed through a beam 909 and a column 916. , St...

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Abstract

The invention relates to a fast scanning detecting device of a two-wire system industrial instrument and a detecting method. The detecting method comprises the following steps of: using an HART bus protocol digital communication technology and a multi-channel switching and high-precision data acquisition technology, matching with a special upper computer detecting software and realizing batch scanning detection of the two-wire system instrument, thus simplifying production process, reducing labor intensity and being convenient to removing trouble and maintaining; the system comprises an intelligent instrument digital communication interface part, can carry out digital communication by the bus and the measured instrument, realize two-way transmission of data and carry out testing and primary diagnosis on the intelligent functions of the intelligent instrument; the device has flexible connecting modes, and can automatically configure according to the quantity of the detecting instrument; and the fast scanning detecting device of the two-wire system industrial instrument and the detecting method provide decisions for improving technique and quality, optimize production process of the product and improve the production efficiency.

Description

Technical field [0001] The invention relates to an instrument detection equipment, in particular to a fast touring detection device and a detection method of a two-wire industrial instrument. Background technique [0002] At present, the industrial automatic control system meters on the market include both traditional analog meters and digital smart meters. The analog meters are mainly 4-20mA two-wire systems and still occupy a certain market share; digital smart meters usually conform to A certain fieldbus specification, currently the most widely used is the HART fieldbus protocol, because it retains the traditional 4-20mA analog signal and superimposes the digital communication method, so it can be implemented without changing the original system structure Replacement of analog instruments. It can be seen that the current mainstream smart or non-intelligent instruments all have 4-20mA analog output function, and their loop connections are as follows figure 1 Shown. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G05B19/048
Inventor 操永波姜祥真陈俊杰
Owner SHANGHAI INST OF PROCESS AUTOMATION & INSTR
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