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280results about How to "Sensitive control" patented technology

Natural cold source cooling water chiller

The invention relates to a natural cold source cooling water chiller which comprises an outdoor unit and an indoor unit, wherein the outdoor unit mainly consists of a refrigeration system composed of a totally-enclosed scroll compressor, an evaporator, an evaporative condenser and a natural cold source collection device, and a water channel circulating system with a three-way valve so as to realize the mechanical refrigeration of the evaporative condenser and the evaporative cooling and the air cooling of the natural cold source collection device. The water chiller is characterized in that the evaporative condenser and the high-efficiency natural cold source collection device are arranged simultaneously above a cooling circulating water pool, and an axial-flow fan is installed on upper space. When the outdoor wet-bulb temperature is higher than 6 DEG C to 8 DEG C, the evaporative condenser is mainly used to realize refrigeration, when the outdoor wet-bulb temperature is lower than 6 DEG C to 8 DEG C and higher than 0 DEG C and 2 DEG C, the natural cold source collection device which is in the form of cooling tower spraying is mainly used to realize the evaporative cooling, and when the outdoor wet-bulb temperature is lower than 0 DEG Cto 2 DEG C, the natural cold source collection device which is in the form of air cooling is mainly used to realize cooling.
Owner:郭海新 +1

Multi-combination independent alcohol-water hydrogen generation fuel cell car

InactiveCN104752746AOverall small sizeSmall amount of hydrogen productionHydrogenFuel cell auxillariesMethanol waterAlcohol
The invention discloses a multi-combination independent alcohol-water hydrogen generation fuel cell car. The multi-combination independent alcohol-water hydrogen generation fuel cell car comprises a methanol water storage vessel, at least two groups of methanol water reforming hydrogen generation and power generation modules, a car motor and at least two conveying pumps, wherein the methanol water reforming hydrogen generation and power generation modules are integrated with a reforming device and a fuel cell, a reforming chamber and a hydrogen purifying device are arranged in the reforming device, the temperature in the reforming chamber is 300 to 570 DEG C, methanol and water have the reforming hydrogen generation reaction in the reforming chamber to prepare hydrogen-containing gas, the hydrogen-containing gas is purified by the hydrogen purifying device to obtain hydrogen, and obtained hydrogen is supplied to the fuel cell; the fuel cell is used for generating electric power which is used for powering the car motor; the car motor is used for driving a car axle to rotate so as to enable a car to run. According to the invention, the speed for converting methanol and water raw materials into hydrogen is high, the methanol conversion efficiency is high, the utilization rate of methanol is high, and the hydrogen-containing gas is easy to purify; the reforming device is easy to start, the stability is good, the vibration quantity is small, parameters such as the hydrogen generation temperature are sensitive to control, the safety is high, and the reliability is high.
Owner:GUANGDONG HYDROGEN ENERGY SCI & TECH

Volume variable additional air chamber of air spring

The invention discloses a volume variable additional air chamber of air spring. The outer part of the volume variable additional air chamber is a cylindrical air storage barrel, the inner cavity of the air storage barrel is circumferentially divided into eight equal sector cylindrical cells by the same partition boards, one side of each partition board is fixed on the inner wall of the air storage barrel, and the other side of each partition board stretches towards the center of the air storage barrel to form a closed cylindrical empty cavity tightly matched with a piston; the top end of the piston stretches out of the air storage barrel and is connected with a stepping motor through a screw rod; an altitude sensor is fixedly arranged on the top end face of the piston; the lower part of the air storage barrel is a lower sealing cover board, and a lower closed empty cavity is formed from the air storage barrel, the piston and the lower sealing cover board; a connecting hole communicated with a main air chamber is arranged in the center of the lower sealing cover board; and eight small holes communicated with the eight sector cylindrical cells in sequence are arranged on the side wall face of the cylindrical empty cavity, and the eight small holes are axially distributed along the cylindrical empty cavity from bottom to top in equal altitude difference. The volume of the additional air chamber can be rapidly changed so as to stabilize the air pressure of the main additional air chamber.
Owner:JIANGSU UNIV

Control device for preventing children from taking elevator alone

InactiveCN102910510APrevent riding aloneGuarantee the safety of lifeElevatorsHuman bodyEngineering
The invention discloses a control device for preventing children from taking an elevator alone. The control device comprises a control circuit and two human body heat-sensing detectors connected with the control circuit, wherein the two human body heat-sensing detectors are installed on the inner side of an elevator door, and the detection ranges of the two human body heat-sensing detectors are not mutually overlapped in a vertical direction; and the two human body heat-sensing detectors are connected to the control circuit through conducting wires. When a child enters the elevator, only the human body heat-sensing detector installed in a lower position detects a human body to send a signal, the control circuit controls the elevator door not to be closed at once and then controls the elevator to stop running. When an adult enters the elevator, both the two human body heat-sensing detectors detect the human body to send a signal, and the control circuit controls the elevator to normally run. The control device for preventing children from taking the elevator alone adopts the two human body heat-sensing detectors to effectively prevent the child from taking the elevator alone and ensure the living safety of people, and the control device has the advantages of convenience in installation, sensitivity in control and the like.
Owner:张瀚予

Earth pressure balance control system of rectangular shield tunneling machine and method of earth pressure balance control system

The invention provides an earth pressure balance control system of a rectangular shield tunneling machine, which is used for the rectangular shield tunneling machine equipped with dual spiral conveyors to perform earth pressure balance control. The earth pressure balance control system comprises interaction operation equipment, a computer PLC (programmable logic controller) master station, a hydraulic pump station and an earth pressure sensor; the computer PLC master station is connected with the interaction operation equipment; the earth pressure sensor is arranged at an earth bin of the shield tunneling machine; the computer PLC master station controls the operation of the two spiral conveyors by the hydraulic pump station according to the data sent from the earth pressure sensor. According to the earth pressure balance control system, on one hand, the earth pressure condition of the earth bin is subjected to feedback control in real time by using the information transmission between the earth pressure sensor and the computer PLC master station, on the other hand, for the control on the rotary speed of the spiral conveyors, the combined use of the computer PLC master station and the hydraulic pump station is introduced, the technology of controlling a variable pump by a hydraulic driving hydraulic proportional valve is applied, and the control on the earth pressure is more sensible, faster and more reliable.
Owner:SHANGHAI MECHANIZED CONSTR GRP

Intelligent wearing equipment interface switching control method based on infrared induction

The invention relates to an intelligent wearing equipment interface switching control method based on infrared induction, relates to the technical field of intelligent wearing equipment and provides a method for judging a gesture action direction through a time sequence of the occurrence of infrared reflection signals. Three infrared light emitting diodes, an infrared sensor and a core processor are arranged in the intelligent wearing equipment; the positions of the three infrared light emitting diodes form a triangle; infrared signals are emitted by the three infrared light emitting diodes; when a gesture action for controlling interface switching occurs, three paths of the infrared reflection signals are detected by the infrared sensor; a gesture target action direction is judged by the core processor according to wave peak movements of the three paths of the infrared reflection signals, so that the switching of a display interface is controlled. A hole for mounting a key does not need to be formed in the surface of the equipment so that the waterproof performance of the equipment is enhanced; a touch screen for navigating a user interface does not need to be added on the surface of the equipment so that the wrong triggering possibility is reduced; the triggering of the infrared induction is more sensitive and the operation is more convenient.
Owner:上海翰临电子科技有限公司

Mobile charging station with multiple groups of methanol-water reforming hydrogen production and power generation modules and method

The invention discloses a mobile charging station with multiple groups of methanol-water reforming hydrogen production and power generation modules. The mobile charging station comprises a mobile carrier vehicle, a control device, a methanol-water storing and conveying device, at least two groups of methanol-water reforming hydrogen production and power generation modules, an alternating-current and direct-current power conversion device and a plurality of chargers, wherein the control device, the methanol-water storing and conveying device, the at least two groups of methanol-water reforming hydrogen production and power generation modules, the alternating-current and direct-current power conversion device and the plurality of chargers are carried on the mobile carrier vehicle; each methanol-water reforming hydrogen production and power generation module comprises a reformer and a fuel cell; raw materials, namely methanol and water are subjected to reforming hydrogen production reaction in each reformer; the prepared hydrogen enters each fuel cell; in each fuel cell, the hydrogen and oxygen in air are subjected to electrochemical reaction to generate electric energy for outputting; the chargers feed the real-time charging power demand back to the control device in the charging process; and the control device controls an appropriate number of methanol-water reforming hydrogen production and power generation modules to run according to the charging power demand information. The mobile charging station is high in modularization, rapid to start, high in safety and high in reliability; and devices such as electric vehicles can be intelligently and rapidly charged immediately.
Owner:GUANGDONG HYDROGEN ENERGY SCI & TECH

Intelligent wearing equipment interface switching control method based on infrared induction

The invention relates to an intelligent wearing equipment interface switching control method based on infrared induction and relates to the technical field of intelligent wearing equipment. One set of infrared light emitting diodes and an infrared sensor are arranged in the intelligent wearing equipment; infrared signals are emitted by the infrared light emitting diodes in real time; when a gesture action for controlling interface switching occurs, an infrared reflection signal reflected by a gesture target is detected by the infrared sensor and position data of one group of gesture targets at different time points are calculated and obtained; furthermore, an action direction of the gestures of a user is resolved by a core processor so that the switching of a display interface is controlled. An infrared induction control manner is adopted and a hole for mounting a key does not need to be formed in the surface of the equipment so that the waterproof performance of the equipment is enhanced; a touch screen for navigating a user interface does not need to be added on the surface of the equipment either so that the wrong triggering possibility is reduced; the triggering of the infrared induction is more sensitive and the operation is convenient; the problems that an existing interface switching method is not sensitive, the wrong triggering is easy to cause and the waterproof performance is poor are solved.
Owner:上海翰临电子科技有限公司

Inner bore honing machine

The invention discloses an inner bore honing machine relating to the technical field of honing machines, and solving the technical problem of improving honing precision. The honing machine comprises a rack, a principal axis, a honing oil stone rod, a workpiece bench and a reciprocator, wherein the principal axis is arranged on the rack and can be driven to rotate, and the honing oil stone rod is axially and fixedly connected with the principal axis. The honing machine is characterized in that the reciprocator comprises a stroke planker and an I-shaped straight ball-guide, wherein the I-shaped straight ball-guide is arranged on the rack and has the same axial direction with the principal axis; and the stroke planker is arranged on the I-shaped straight ball-guide and can be driven to carry out reciprocating motion along the I-shaped straight ball-guide. The workpiece bench comprises a positioning cylinder and a positioning supporting plate, wherein the positioning supporting plate is arranged on the stroke planker and is used for holding and fixing workpieces, and the positioning cylinder is used for positioning the positioning supporting plate; and the rack is also provided with a magnetic switch for controlling the motion of the positioning cylinder and the movement of the stroke planker. The inner bore honing machine provided by the invention can improve the machining accuracy of the workpieces.
Owner:上海鸿宁精密机械有限公司

Hydrogen raw material production equipment and process for ammonia synthesis

The invention discloses hydrogen raw material production equipment and process for ammonia synthesis. The hydrogen raw material production equipment comprises a control device, a methanol water storage conveyer and at least three groups of methanol water-reforming hydrogen production modules, wherein the control device is electrically connected with the methanol water storage conveyer and each group of methanol water-reforming hydrogen production modules, so as to control the working states of the methanol water storage conveyer and the methanol water-reforming hydrogen production modules; hydrogen prepared by various methanol water-reforming hydrogen production modules is directly conveyed to an ammonia synthesis system through conveying pipelines; and the control device is used for controlling a proper number of methanol water-reforming hydrogen production modules to run according to the hydrogen raw material quantity demand information of the ammonia synthesis system. The hydrogen raw material production equipment is high in modularization; a single module is small in size and fast to start; the hydrogen can be immediately prepared without a hydrogen storage tank, and can be rapidly separated; and the hydrogen raw material production equipment is good in stability, high in intellectualization, sensitive in parameters control of hydrogen preparation temperature, gas flow and air pressure, high in safety and high in reliability.
Owner:GUANGDONG HYDROGEN ENERGY SCI & TECH

Covering earth prevention system of rectangular shield tunneling machine and control method of covering earth prevention system

The invention provides a covering earth prevention system of a rectangular shield tunneling machine and a control method. The system comprises a plurality of covering earth prevention plates arranged above the shield tunneling machine enclosure, a plurality of groups of oil cylinders, a hydraulic pump station for driving the oil cylinders and a control system; each group of oil cylinders is used for driving one covering earth prevention plate to move above the shield tunneling machine enclosure; the control system comprises interaction operation equipment, a computer PLC (programmable logic controller) master station, an electric control cabinet and a hydraulic valve bank. The large volume covering earth above the rectangular shield tunneling machine is cut into a plurality of small blocks by the moving the covering earth prevention plates, so the large volume covering earth effect above the shield tunneling machine in the prior art is converted to be shorn small block earth bodies front and back by continuously shearing the covering soil and the covering earth phenomenon is reduced. The combined use of the computer PLC master station, the electric control cabinet, the hydraulic valve bank and the hydraulic pump station is introduced, so the control on the covering earth prevention plates is more sensible, faster and more reliable.
Owner:SHANGHAI MECHANIZED CONSTR GRP

Data Owner Controlled Data Storage Privacy Protection Technique

This patent describes methods which allow the primary owners of sensitive data to retain more access control over the data they share with secondary service providers, even when the secondary service provider electronically stores some form of this information in a service provider maintained database. When these methods are applied by both data owner and service provider the data can only be accessed and used by the service provider during data owner controlled access sessions. This is accomplished through a special set of methods to apply a set of standard encryptions and a special set of methods to manage the associated cryptographic keys. Unencrypted sensitive data need never be permanently stored in a database. Each data owner has their own unique set of cryptographic keys. Critical decryption keys are never permanently stored in service provider databases. Methods are included to allow previously stored data to be recovered even if the data owner loses or forgets the primary password or access key. Service provider host and database administrators, or hackers who have gained such access, are more effectively blocked from accessing the sensitive data. There is no reliance on obfuscation techniques. Many, many cryptographic keys, not just one, would have to be cryptographically compromised in order to access many records. These methods make massive unauthorized extraction of sensitive data by hackers far more difficult while still supporting effective data sharing suitable for many applications.
Owner:CHRISTIANSEN ERIC ALAN
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