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21451 results about "Water level" patented technology

Water level or gauge height or stage is the elevation of the free surface of a stream, lake or reservoir relative to a specified vertical datum.

Water level monitoring system based on image processing and method

The invention discloses a water level monitoring system based on image processing and a method, which mainly solve the problem that water level cannot be monitored automatically in the prior art. The water level monitoring system comprises a water level gauge, a water level image processing module, a wireless communication module and a central management server module. Working principle of the system is that: firstly the water level gauge is used for marking the water level, water level images marked by the water level gauge can be collected by a camera, the water level image processing module further performs automatic positioning, skew correcting and recognizing on the water level gauge in the water level images to obtain water level data and transmits the water level data to the wireless communication module through a wireless communication network, then the wireless communication module transmits the received water level data to the central management server module which stores the received water level data into a computer data base so as to draw current hydrograph in real time, when the current water level is higher than a preset water level, alarm information can be given out, and accordingly automatic monitoring of the water level can be achieved.
Owner:XIDIAN UNIV

Fuzzy-control-based internet of things intelligent irrigation and fertilization control method and system

The invention discloses a fuzzy-control-based internet of things intelligent irrigation and fertilization control method and system. The method comprises the first step of data collection and processing, wherein limiting values of the soil humidity, nutrients and pond water level and the irrigation and fertilization planning time are set and stored in a database according to the water demand regulation and a fertilization formula of crops, and collected soil temperature and humidity, soil nutrients, air temperature and humidity, air speed, rainfall, flow, pond water level and pipe network pressure data; the second step of intelligent control, wherein corresponding data are read from the database and an irrigation valve and a fertilization valve are intelligently controlled by the adoption of the fuzzy control algorithm and a water and fertilizer coupling mode, by comparing the current pond water level with the set limiting value of the pond water level, starting and stopping of a water pump are intelligently controlled, and the speed of the water pump is adjusted and controlled by a PID algorithm. The fuzzy-control-based internet of things intelligent irrigation and fertilization control method and system have the advantages of being good in performance, complete in function, high in expansibility, easy to operate and manage and the like, and intelligent management and control are achieved by the adoption of fuzzy control.
Owner:贵州省水利科学研究院 +1

Systems and methods for monitoring and controlling water consumption

InactiveUS20050067049A1Monitor and control daily water consumption flowProtection malfunctionDetection of fluid at leakage pointMeasurement of fluid loss/gain rateInformation processingWater based
Systems and methods for monitoring and controlling water consumption in a water-based system are disclosed using one or more sensors for generating signals indicative of the operation thereof. One or more interface modules are provided as breaker circuits for receiving the generated signals, and a fluid control device is operable for limiting the water consumption. A motherboard receives the interface modules and provides communication therebetween for information processing. Signals from the various sensors are supplied to a controller, which provides signals to status indicators, and also operates to provide alarm signals via network interfaces to remote locations and to operate an alarm. In an alternate embodiment, a water monitoring system is designed to shut off the water supply to the water device and to shut off either the electrical supply or the gas supply to the heating unit of the water device in response to sensing a malfunction through one or more of a number of different sensed parameters. These parameters include a water leak detector located beneath the water device, a water level float sensor, a temperature sensor to sense excess temperature, and a pressure sensor located in line.
Owner:FIMA RAOUL G

Neural networked irrigation controller

A device which is neural networked with other such devices to control the irrigation of various irrigation zones. Each neural networked irrigation controller commences irrigation for its zone, provided sufficient water is available, either when a preselected period of time arrives or sensed zonal conditions so dictate. The determination of adequacy of water in the source forms the basis for neural networking. Each controller senses water level or pressure in the source and has its own initial water threshold value-a level or pressure at which irrigation will be permitted to commence. Optionally, each controller may have its own terminal water threshold value-a level or pressure which must be maintained in order for irrigation of the zone to continue. Thus, the controllers communicate hydraulically with one another. When a controller causes irrigation to commence, the water level or pressure in the source is lowered, and all controllers sense this and have their decisions affected accordingly; conversely, when a controller terminates irrigation, all controllers sense an increase in water level or pressure. If sufficient water is available in the source, irrigation of a zone will continue until either all zonal conditions have reached their specified terminal zonal threshold value or a specified period of time has passed. The start of irrigation may alternatively occur when a specified period of time has been reached.
Owner:CAMPBELL PAUL D

All-weather clean energy comprehensive electricity generating and energy saving method and facility manufacturing method thereof

The invention discloses an all-weather clean energy comprehensive electricity generating and energy saving method and a facility manufacturing method. In ten inventions, having at least one identical or corresponding specific technical characteristic and related to the total inventive concept, of solar gallery buildings, through graphene series facilities under solar gallery buildings, in a land field, a zero-carbon environment-friendly safe type raft-shaped basic-framed-tube-structured huge building group of a universal wind energy tower shape is established and new energy automobiles and trains are manufactured, wherein cheap wind power solids are established, photoelectric benzene expansion optical fibers are manufactured, lightning is utilized firstly for supplying power externally, various spaces are shared through building three-dimensional afforesting, and three-dimensional energy collection is achieved; in a water field, deep water self-floating buildings of a super steel concrete frame-tube structure (preferably, complete steel plates are adopted) are built, the deep water self-floating buildings are connected in series to form a global ocean water and electricity and agriculture and forestry extraction traffic network and a large lake and reservoir water and electricity and agriculture and forestry dredging dam water level traffic network, wherein the deep water automatic floating buildings are free of influences of earthquakes, tsunamis and wars, the Red Cross can rescue people in all-weather conditions; in a space field, multiple receiving and transmitting solar towers are first established on the equator of the earth and the equator of the moon, the receiving and transmitting solar towers are connected in series to operate in a timed mode in the specific direction and transmit power to the whole world through graphene cables which are all packaged with colored insulating films.
Owner:熊凌云 +6

Analysis and evaluation method for inrush mountain torrent disasters of regions without data

The invention discloses an analysis and evaluation method for inrush mountain torrent disasters of regions without data, and relates to the field of mountain torrent disaster analysis and evaluation. The method comprises the steps that the basic information of a project area is obtained; the landform, the river position form and the flood control current situation of an evaluated object are obtained; the catchment area and runoff components of the dike confluence drainage basin of each small watershed in the obtained evaluated object are determined; rainstorm parameter calculation, rainstorm calculation and concentration-time-based rainstorm time interval distribution of the evaluated object are obtained; flood calculation is designed, and the water level and flow relation of a riverway section, prone to inrush, of the evaluated object is obtained; the riverway flood control current situation in the evaluated object is determined, and accordingly danger zone grade division is conducted; and an early warning point is established, the early warning water level of the analyzed and evaluated object is determined, and the early warning index of the analyzed and evaluated object is formulated. According to the analysis and evaluation method, the inrush mountain torrents serves as the main analyzed and evaluated object, and a current riverway flood control current situation evaluation method and an early warning index analysis method are provided.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Semiautomatic electrothermal cooking pot

The invention discloses a semiautomatic electrothermal cooking pot, comprising a clip-type temperature controller, a stainless steel pot, an electric cooker and a power socket board, wherein the clip-type temperature controller is provided with a clip bracket; the front end of the clip bracket is provided with a temperature control switch; the left end of the temperature control switch is communicated with a capillary tube; the left end of the capillary tube is communicated with a temperature sensing head; the temperature sensing head is tightly clung to the lower right end of the stainless steel pot; a clip opening of the clip bracket is supported at the right end of the stainless steel pot. The pot disclosed by the invention has the advantages that a water level line at the bottom of the stainless steel pot is a sauce-reducing water level line during a cooking process; different water adding amount in the pot is controlled according to different food materials and cooking requirements, the water adding amount is in direct proportion to cooking time, the cooking time depends on the water adding amount, the cooking degree of cooked food depends on the cooking time, and the sauce-reducing degree of the cooked food depends on different pot bottom temperatures; the cooked food can reach an expected effect by means of flexibly and expertly mastering the water adding amount and the different pot bottom temperatures; after cooking, the electric cooker powers off automatically, the situation that the food is scorched due to oblivion is prevented, and the effects of saving time, labor and worry are achieved.
Owner:临沂威尔森新型材料有限公司

Yellow River upstream cascade hydroelectric station operation design and optimized dispatching method as well as equipment

The invention relates to a method for united operation design and optimized dispatching of a Yellow River upstream cascade hydroelectric station, which comprising the following steps of: measuring daily average reservoir level and downstream daily average tail-water level of each power station through a water level sensor; measuring discharged flow of each power station through an ultrasonic flowmeter; establishing a cascade reservoir united optimized dispatching model through a cascade hydroelectric station united optimized dispatching model module; computing and analyzing a cascade hydroelectric station united optimized dispatching path through a dispatching path computation and analysis module; carrying out unified operation design on a cascade hydroelectric station group system through a cascade hydroelectric station group system unified operation design module; and carrying out unified dispatching on the cascade hydroelectric station group system through a cascade hydroelectric station group system unified dispatching module. The invention is simple, clear and practical with high pertinence, can enable average annual energy output of a Yellow River upstream cascade power station group after the power stations in Laxiwa and Jishi valley are put into operation to be increased by about 470 million degrees, and the water supply guarantee rate of Lanzhou cross section to reach95 percent, and has remarkable technical economic benefit.
Owner:WUHAN UNIV +1
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