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Environment analysis apparatus

An analytical instrument and environmental technology, which is applied in the design field of environmental analytical instruments, can solve problems such as the inability to meet the anti-control requirements of the bottom layer operation at the device level

Active Publication Date: 2013-07-31
GUILIN OUBO INSTR TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0009] Second, the control system software architecture based on simple integration technology can only provide some limited upper-level anti-control command interfaces such as starting measurement, starting calibration, and instrument return data, while the current online monitoring of water quality usually requires users to be able to pass wired or wireless Network remote control to each device or underlying operation under each analytical instrument subsystem, the existing control system cannot meet the anti-control requirements of device-level underlying operations

Method used

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Examples

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example 1

[0066]An example of the present invention is Figure 5 Shown: an automatic water quality analysis instrument that can simultaneously analyze and detect two water quality pollution indicators of COD and ammonia nitrogen in parallel, including an analysis process control unit 21, a system internal bus, and two open sub-analysis systems that detect COD and ammonia nitrogen respectively A distributed, loosely coupled control system is formed, and the internal bus of the system is CAN bus 22.

[0067] The two open sub-analysis systems are COD sub-analysis system 23 and ammonia nitrogen sub-analysis system 24 respectively. The two sub-analysis systems externally provide the control interface of the bottom-level operation instruction set 11 for realizing each step of the analysis process, and each bottom-level operation instruction in the bottom-level operation instruction set 11 includes its triggering of the bottom-level operation in the open sub-analysis system to which it belongs...

example 2

[0115] Another example of the present invention is Figure 6 Shown: can be Figure 5 The two open sub-analysis systems of COD and ammonia nitrogen in Example 1 are combined into one open sub-analysis system. The COD and ammonia nitrogen sub-analysis system includes two sets of metering drive units, two sets of reaction control units and two sets of analysis and determination units. The internal bus of the above-mentioned system can adopt CAN bus, and can also adopt RS232 or RS485 bus.

example 3

[0117] Such as Figure 7 As shown: because the measurement process and principle of COD and ammonia nitrogen are very similar, the designer can also combine the two sets of metering drive units into a set of metering drive unit 36, and combine the reaction control unit 31 and analysis and measurement unit 32 in the COD sub-analysis system Combined into a COD digestion and measurement unit 37, the reaction control unit 34 and analysis and measurement unit 35 in the ammonia nitrogen sub-analysis system were combined into an ammonia nitrogen constant temperature measurement unit 38.

[0118] The above three examples list the examples of controlling two processes of indicators to be detected in parallel at the same time. For the control of more than two processes of indicators to be detected, designers can refer to the method of the present invention for design. On the other hand, in order to further enhance the real-time and reliability of each sub-functional unit’s control over ...

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Abstract

The invention relates to a design of an environment analysis apparatus for detecting one or more index to be analyzed, the environment analysis apparatus comprises a sensor and an actuator set, and a distributed control system with loose coupling composed of several subsystems capable of being independently triggered on a control technology and system internal bus, the several subsystems comprise an analysis flow control unit, and one or more opened type sub analysis systems for detecting difficult detection index, the opened type sub analysis systems provides various bottom layer operation instruction set control interfaces to outside, processes of cleaning evacuation, maintenance debug or analysis detection of various index to be detected in the environment analysis apparatus are carried out through selecting several bottom layer operation instructions collected at bottom layer operation instruction, the analysis flow control unit gives the bottom layer operation instruction step by step according to flow steps to the opened type sub analysis system, and then one or more opened type sub analysis systems can be controlled according to returned state result information for controlling a flow direction mode and operated.

Description

technical field [0001] The invention relates to an environmental analysis instrument, in particular to the design of an environmental analysis instrument capable of simultaneously detecting one or several indicators to be analyzed. Background technique [0002] The workflow of an environmental analysis instrument can generally be composed of sub-functional processes such as preprocessing, liquid inlet metering, reaction control, analysis and measurement, data processing, display, and communication in a certain order and jump rules. At present, an environmental analysis instrument for detecting an analysis index usually adopts a control system with a microprocessor or a microcontroller as the core. For example: the total arsenic online analyzer announced by Chinese patent application publication number CN101900703A, the core of its control system is a single processor main board ( figure 1 Component 9 shown: CPU). [0003] With the continuous improvement of customers' requi...

Claims

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Application Information

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IPC IPC(8): G01N35/00
Inventor 肖又曾李志超
Owner GUILIN OUBO INSTR TECH
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