Routing method and device

An automatic control system and hydraulic test technology, applied in wireless communication, transmission system, signal transmission system, etc., can solve the problem of insufficient standardization and precision of manual operation, and achieve full-automatic program control, means of expanding data collection, The effect of easy operation

Active Publication Date: 2009-03-04
SHANGHAI INST OF PROCESS AUTOMATION & INSTR
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Problems solved by technology

[0003] The purpose of the present invention is to overcome that when the existing hydrostatic test is carried out on the product, no matter it is the pressurization process, the pressure maintenance process and the pressure relief process, the manual control is basically adopted, and the parameter measurement of the pressure medium is still based on the visual inspection of the instrument on the spot. The main disadvantage is to provide a ZigBee wireless communication transmission method to replace the wired method of conventional system data collection, to solve the problem that the manual operation of the hydrostatic test is not standardized and accurate, and to use ZigBee wireless communication. The nuclear power product hydrostatic test automatic control system

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Embodiment Construction

[0016] Depend on figure 1 As shown, the terminal nodes and a small programmable controller PLC for collecting the pressure and temperature data of the hydraulic test are arranged in the place where the hydraulic test is specially carried out. Through the network coordinator, routing nodes and ZigBee I / O cards, a ZigBee wireless network is formed (the wireless network is based on the unique self-organizing grid topology of IEEE 802.15.4 / ZigBee communication technology), and through the ZigBee-Modbus gateway, the Relevant data are transmitted to the monitoring host computer and PLC control system for data recording and processing.

[0017] Choose a reasonable installation position for sensors such as temperature and pressure, that is, it must be able to respond sensitively to changes in pressurization, and it must also ensure the pressurization data of the entire pressure vessel, and it must be easy to install. The temperature and pressure sensor obtains the temperature and pre...

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Abstract

The invention relates to a nuclear product hydraulic test automatic control system, which uses Zigbee wireless communication. Wherein, it is formed by pressure temperature sensor, Zigbee I / O card, Zigbee route node, Zigbee network consulter, PLC controller, Zigbee MODBUS gateway and detector; the pressure temperature sensor and the terminal node, and one PLC controller are at the site of hydraulic test, via network consulter, route node and Zigbee IO card, to form one Zigbee wireless network, and via Zigbee-Modbus gateway, to transmit relative data to the detector and PLC control system that detecting and recording data, to be compared with the data collected and transmitted via line. The invention can realize full-automatic program control, to improve the test accuracy.

Description

technical field [0001] The invention relates to a hydrostatic test of a product, in particular to an automatic control system for hydrostatic tests of nuclear power products using ZigBee wireless communication. Background technique [0002] Since boiler steam drums, chemical reaction tanks, and nuclear power plant pressure shells and other special containers are surfacing with special steel plates to achieve the designed strength, the welding process and strict maintenance during the dozens of days of welding process The consistency and stability of key welding parameters required by the process is the key to ensuring welding quality. Even so, in order to ensure the absolute reliability and safety of processed products, hydrostatic testing is a comprehensive quality inspection method that must be adopted. The purpose of the hydraulic test: one is to check the tightness of the pressure parts, that is, to check whether there is leakage in the welding joints, bulges, rivets, r...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/28G08C17/02H04L29/06H04W84/18
Inventor 黄冠宇彭瑜涂煊王凯
Owner SHANGHAI INST OF PROCESS AUTOMATION & INSTR
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