System and method for controlling constant-flow ship lock based on liquid level differences

A technology of control system and liquid level difference, applied in ship locks, electrical program control, program control in sequence/logic controllers, etc., can solve problems such as the limitation of exploration results

Inactive Publication Date: 2014-12-10
ZHEJIANG UNIV
View PDF7 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The above-mentioned beneficial explorations have certain reference value, but there are still limitations in the exploration results

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for controlling constant-flow ship lock based on liquid level differences
  • System and method for controlling constant-flow ship lock based on liquid level differences
  • System and method for controlling constant-flow ship lock based on liquid level differences

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0085] Such as figure 1 As shown, along the downward direction of the ship passing the lock, the constant flow ship lock control system based on the liquid level difference consists of the upstream liquid level detection device 100 of the ship lock, the upper lock head of the ship lock 1, the opening degree instrument 3 of the upper lock head of the ship lock, and the water injection pump of the upper lock head of the ship lock 5. Ship lock chamber liquid level detection device 200, ship lock lower head discharge pump 6, ship lock lower head opening meter 4, ship lock lower head 2, ship lock downstream liquid level detection device 300, lower computer central controller PLC7, ship lock lock The head hoist control cabinet 8 and the host computer monitoring PC9 are composed;

[0086] The upstream liquid level detection device 100 of the ship lock, the liquid level detection device 200 of the ship lock lock chamber and the downstream liquid level detection device 300 of the ship ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a system and a method for controlling constant-flow ship lock based on liquid level differences. The system comprises an upstream/lock chamber/downstream liquid level detection device of the ship lock, an upper/lower lock head of the ship lock, an upper/lower lock head opening instrument of the ship lock, an upper/lower lock head filling/discharging water pump of the ship lock, a lower computer central controller PLC, a lock head opening-closing machine control cabinet of the ship lock and an upper computer monitoring PC, wherein liquid level signals output by the liquid level detection device of a laser distance measuring instrument of a double two out of two structure are processed by using a double two out of two algorithm. By virtue of the laser distance measuring instrument, the defect of a water level meter based on a pressure mechanism can be eliminated; by virtue of the double two out of two technology, the accuracy and the reliability of liquid level detection are improved; a multi-mode subsection control algorithm is used for controlling the constant-flow ship lock based on the liquid level differences under the assistance of the upper/lower lock head filling/discharging water pump of the ship lock; different control strategies are designed according to different liquid level differences between the water level of the lock chamber and the upstream/downstream water levels of the ship lock; by virtue of the multi-mode subsection control, the safety and the efficiency indexes of the ship lock are improved.

Description

technical field [0001] The invention belongs to the technical category of ship lock control, and in particular refers to a constant flow ship lock control system and method based on liquid level difference based on the existing ship lock control system architecture. Background technique [0002] my country is a country rich in inland water transportation resources. There are about 1,600 rivers with a drainage area of ​​more than 1,000 square kilometers. The total navigable mileage of inland waterways is 123,700 kilometers; of which, 61,500 kilometers are graded waterways, accounting for 49.8% of the total navigable mileage. The navigable mileage of the six major water systems are: the Yangtze River 64,016 kilometers, the Pearl River 15,952 kilometers, the Yellow River 3,333 kilometers, the Beijing-Hangzhou Canal 1,410 kilometers, the Minjiang River 1,973 kilometers, and the Huaihe River 17,201 kilometers; in addition, water transportation resources also involve the waters of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E02C1/00G05B19/05
CPCY02A10/30
Inventor 陆乙君黄懿明杨勇吴明光
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap