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630results about How to "Meet operational needs" patented technology

Mobile robot path planning method in complex environment

The invention provides a mobile robot path planning method in a complex environment. The method is characterized in that 1. information of environment in which a robot is positioned is acquired, and obstacles in the environmental space are indicated by using rectangular enclosing boxes after processing and displayed on a human-computer interaction module; 2. the initial position of the robot is confirmed and recorded as an initial point; a target position expected to be reached by the robot is confirmed and recorded as a target point; 3. the initial point, the target point and the vertexes of all the obstacle enclosing boxes meeting the condition are connected by using line segments, wherein the requirement indicates that the connecting line of any two points does not penetrate through the enclosing boxes, based on which a visual graph is constructed; 4. the optimal path is planned in the visual graph via an artificial immune algorithm, and key nodes in the optimal path are stored; and 5. The entity robot is controlled to start from the initial point, pass the key nodes in the optimal path one by one and finally reach the target point. Algorithm efficiency and convergence rate can be effectively enhanced under the premise of guaranteeing solution of the optimal path.
Owner:SHENYANG POLYTECHNIC UNIV

Heavy type free shuttling trolley with tracks

ActiveCN102849423ARealize clamping and conveyingImprove adaptabilityMechanical conveyorsVehicle frameButt joint
The invention discloses a heavy type free shuttling trolley with tracks. The heavy type free shuttling trolley comprises a main track, a branch track, a main line rack, a branch line rack, a movable rack, a traveling driving mechanism, a reversing lifting mechanism, a switch-over driving mechanism, a main line trolley support, a branch line trolley support, a main line traveling wheel, a branch line traveling wheel and a driving gear. The main track and the branch track are perpendicular with each other in crossing mode, the main line rack and the branch line rack are arranged on track bases of the main track and the branch track respectively, a movable track and the switch-over driving mechanism are arranged at a crossing node position of the main track and the branch track, and the movable rack is driven by the switch-over driving mechanism and is in butt joint with the main line rack or the branch line rack. The main line trolley support and the branch line trolley support are stacked together to form the trolley, a main line traveling wheel and a branch line traveling wheel are arranged on the lower portion respectively, and the reversing lifting mechanism is arranged between the main line trolley support and the branch line trolley support and used for conducting relative lifting so that the main line traveling wheel is matched with the main track or the branch line traveling wheel is matched with the branch track. The traveling driving mechanism is arranged on the trolley so that the driving gear is matched with the main line rack, the branch line rack or the movable rack. The heavy type free shuttling trolley is suitable for material conveying, economical, reliable and high in efficiency.
Owner:XIAMEN AEROSPACE SIERT ROBOT SYST CO LTD

Acquisition method of sliding pressure curve of steam turbine by using main steam flow as scheduling variable

The invention provides an acquisition method of a sliding pressure curve of a steam turbine by using a main steam flow as a scheduling variable, relates to a determining method of a sliding pressure curve, and aims at solving the problem that the heat supply steam extraction capacity variation and back pressure variation operation status cannot be fulfilled by one sliding pressure curve. The method comprises the following steps: selecting M main steam flows according to the type of a heat supply steam extraction unit, wherein M is an integer of greater than 2, and each main steam flow is respectively subjected to the following steps: N different main steam pressure values of the heat supply steam extraction machine are selected with the main steam flow being the selected main steam flow, and N is an integer of greater than 4; calculating heat consumption values of the heat supply steam extraction unit; performing curve fitting on the N main steam pressure values and corresponding heat consumption values thereof according to a least square method to determine an optimal main steam pressure value; and performing linear fitting on the acquired M main steam flows and the corresponding optimal main steam pressure data thereof to acquire a final sliding pressure operation curve. The acquisition method is used for determining the sliding pressure curve of the steam turbine.
Owner:NANJING POWER HORIZON INFORMATION TECH CO LTD

Ecological high-yield circulating breeding system and method

ActiveCN104285873ARealize the recycling of the whole biological chainHigh economic valueClimate change adaptationAnimal feeding stuffWater sourceFood chain
The invention discloses an ecological high-yield circulating breeding system and method. The system is characterized by comprising a plurality of fish breeding pools (1) of the area ranging from 200 square meters to 700 square meters, a sealed greenhouse (2) is arranged on the fish breeding pools, an air inlet is formed in one end of the greenhouse, an air supply device (3) is additionally arranged on the air inlet, an air outlet is formed in the other end of the greenhouse, natural water drainage openings (6) are formed in the bottoms of the fish breeding pools, and water supplementing pumps (4) are installed on the periphery of the fish breeding pools and are communicated with a circulating water source (5). By means of the system and method, the green ecological circulation is achieved, no chemical medicine is used in the whole system or the whole breeding process, full-food-chain recycling is achieved for waste water and excrement produced during fish breeding, the commercial high-yield breeding that 50,000 kilograms of snakehead and 25,000 kilograms of bass are produced per year can be achieved, grass carp, chub, yellow catch eel and other high value-added aquatic products can be produced, and meanwhile, completely-green organic rice, fish, shrimp, crab and other by-products high in economic value can be produced in paddy fields.
Owner:溧阳市金泉生态科技园有限公司

Book crossing system and method based on 'Internet+'

ActiveCN106875596AEnhance or highlight intelligenceImprove or highlight convenienceCash registersBuying/selling/leasing transactionsDistributed intelligenceDatabase server
The invention discloses a book crossing system and method based on 'Internet+'. The system comprises a client, a distributed intelligent book exchange cabinet, and a cloud platform formed by a server database and a management module. The client sends book operation information to the cloud platform, and the cloud platform feeds book information in a changed database server to the client according to the book operation information. The management module carries out corresponding management and planning on the book crossing system according to changed book information, and sends the obtained feedback information between a book and a user to the book exchange cabinet. The book exchange cabinet receives the request information from the client and the feedback information of the cloud platform and processes the information, thus the processed information is fed to the cloud platform, and the cloud platform feeds the changed book information to the client according to the feedback information. According to the book crossing system and method, the utilization and management of idle books and the association between people and books can be improved, at the same time the cost is saved, and the interaction between the people and between the people and the books is facilitated.
Owner:HEFEI UNIV OF TECH +1

Trust model-based cloud manufacturing service evaluation and matching method

The invention discloses a trust model-based cloud manufacturing service evaluation and matching method. A trust model-based service combination evaluation method for a cloud manufacturing environmentis proposed, so that the matching between service demands and service resources is realized; a cloud manufacturing service combination sequence is constructed, and a matching degree is quantized by using a service comprehensive trust value, so that the problem of incapability of actually fitting real cloud manufacturing service matching in an existing service evaluation method is solved; a mutualevaluation mechanism is introduced for improving the reliability of a trust relationship of both service parties, the trust relationship of the both service parties in a long-term interactive processis represented with a service satisfaction timeliness function to improve the decision-making timeliness of a cloud platform, and a service satisfaction fluctuation evaluation index also improves thestability and flexibility of the platform; and an improved matrix real-coded genetic evolution algorithm is proposed, a penalty function is introduced for correcting a target function of a fitness value, and evaluation and optimization are performed in combination with policies of a roulette wheel selection method and a local tournament selection method, so that the reliability of cloud manufacturing service combination matching is enhanced.
Owner:CHONGQING UNIV

Phase-change heat transfer type intermediate temperature heat reservoir as well as manufacturing and application thereof

The invention discloses a phase-change heat transfer type intermediate temperature heat reservoir and an intermediate temperature solar air-conditioning system formed by the phase-change heat transfer type intermediate temperature heat reservoir. The phase-change heat transfer type intermediate temperature heat reservoir is a closed pressure container and comprises a box body, a plurality of ring frames, screens, heat accumulation layers and heat exchanging tubes, wherein the plurality of ring frames are respectively and horizontally fixed on the inner wall at the lower part of the box body, a plurality of screens are respectively arranged on each ring frame, the heat accumulation layers are respectively paved on each sieve screen, each heat accumulation layer is formed by mixing a composite phase-change heat accumulation material and grains of sand, the heat exchanging tubes are arranged in an inner cavity in the upper part of the box body, a tube cavity of each heat exchanging tube is isolated from the inside of the box body and is communicated with the outside of the box body, wherein a heat conducting device flows in the tube cavity, the intermediate temperature heat accumulation device takes water and water vapor as phase-change heat transfer working mediums, and the phase-change heat transfer mediums are directly evaporated or condensed on the surface of the granular composite phase-change heat accumulation material to realize phase-change heat exchange. The phase-change heat transfer type intermediate temperature heat reservoir and the intermediate temperature solar air-conditioning system have the advantages of excellent heat exchange capability, high solar utilization ratio, simple structure, easy manufacture and long service life.
Owner:SHANGHAI JIAO TONG UNIV +1

Compressor stability expanding system and compressor mechanism applied to same

ActiveCN103953560AWide stable regionRealize the demand for active expansion and stabilityPump componentsPump controlPressure sensorVibration sensor
The invention belongs to the technical field of a compressor, in particular to a compressor stability expanding system and a compressor mechanism applied to the same. The compressor stability expanding system comprises a sensor, a backflow channel and a controller; the sensor is a vibration sensor or/and a pressure sensor; the backflow channel is provided with an opening and closing switch; the controller is used for receiving the information of the sensor and correspondingly controlling the opening and closing switch to realize the opening and closing operation. The invention also provides the compressor mechanism applied to the compressor stability expanding system; the compressor mechanism comprises a compressor enclosure cover plate; an annular air collection cavity is arranged in the compressor enclosure cover plate in a hollow mode; the annular air collection cavity is provided with air inlets and air outlets; the air inlets penetrate through the plate body of the compressor enclosure cover plate along the axial direction of a compressor wheel axle; the air inlet ports of the air inlets are positioned in the arc surface in the compressor enclosure cover plate; the backflow channel is arranged by being communicated with the annular air collection cavity. The aim that the compressor stability expanding system is more optimized is achieved.
Owner:HEFEI GENERAL MACHINERY RES INST

Vascular interventional operation robot main end force feedback device and working method thereof

A vascular interventional operation robot main end force feedback device is characterized by comprising a cylindrical magnetic conduction stick, an operation rod, a catheter, a connection buckle internally comprising a bearing, a solid optical-electricity encoder, a hollow optical-electricity encoder, a coil, a spool, a guide rail and a magnet; the working method includes the steps that when the rotating angle is measured, the rotating angle can be measured by rotating the catheter to drive an inner shaft of the hollow optical-electricity encoder to rotate; when axial movement information is ensured, a solid shaft of the solid optical-electricity encoder rotates together with an operation rod through the guide rail so that advancing displacement can be converted into the rotating angle; force feedback of the operation force of a slave operator is achieved on a master operator. The vascular interventional operation robot main end force feedback device has the advantages that the design lays emphasis on real-time feedback of the operation force of operations, the operation force of the slave operator can be directly fed back to the operation hand of a doctor in real time through an operation pipe on the main operator, feedback is visible, and requirements for operation safety and doctor operation are met; the axial information of operation of the doctor is efficiently obtained in an electromagnetic induction mode without adding additional loads.
Owner:SHENZHEN INST OF ADVANCED BIOMEDICAL ROBOT CO LTD

Remote automatic cooking system and remote automatic cooking method

The invention provides a remote automatic cooking system and a remote automatic cooking method. The control device of the system comprises a far distance communication module, a controller and a short distance communication module, wherein the far distance communication module is used for obtaining an execution order of a cooking flow path by a network-side server; the controller is used for forming the execution order of the cooking flow path; the short distance communication module comprises a communication executing transceiver and a communication controlling transceiver, wherein the communication controlling transceiver is used for obtaining the execution order from the far distance communication module by a protocol converting module, or obtaining the execution order from the controller, and the communication executing transceiver and the communication controlling transceiver are used for interacting the execution order in the manner of wireless communication within a set distance range; and the communication executing transceiver is used for controlling an execute component on the cooking device to move according to the execution order. According to the invention, not only the remote control function is realized to meet the operation requirement of users under the environment of networked high-speed development, but also the operation is controlled in cooperation with the mode of short distance wire communication, so that the work safety of the system can be improved, and the the system is convenient to move.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Knocking induction type-based bedridden home barrier-free control system

The invention relates to a knocking induction type-based bedridden home barrier-free control system. A pressure transducer and a sound receiver are arranged on a user bed; and the pressure transducer is used to collect a pressure signal and an acceleration transducer is used to collect a knocking signal. Signals of the pressure transducer and the acceleration transducer are converted by a sensor receiver and then are sent to a system master controller; the master controller uses a wireless transmission module arranged inside the system master controller to send a control command to an alarm clock controller and a controlled device access module; the controlled device access module receives the control command and sends the control command to a controlled device accessed to the system to carry out execution; and the alarm clock controller receives the control command from the system master controller and returns an execution signal to the system master controller. According to the invention, the system has advantages of convenient installation, low cost and simple usage; and moreover, operation demands of common equipment in a home environment can be well met, wherein the common equipment includes electric control equipment like an alarm clock, a lamp, an electric fan, an air conditioner, a television set, and a door lock and the like; therefore, an effective solution scheme is provided for improvement of people's life qualities.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Closing and opening spring connecting mechanism and adjusting tool of closing and opening spring connecting mechanism

The invention relates to a closing and opening spring connecting mechanism. The closing and opening spring connecting mechanism comprises a spring barrel and a compression spring; one end of the compression spring is fixed in the spring barrel, the other end of the compression spring is a free end, a tray is installed on the end face of the free end in an abutting-against mode, a groove wheel is installed in the spring barrel, a chain is arranged in a wheel groove of the groove wheel in a winding mode, the end, extending out of the spring barrel, of the chain is connected to an energy storage connecting lever or an outputting connecting lever, the other end of the chain extends in the compression direction of the compression spring and is connected with a screw through a chain connector, and the other end of the screw penetrates through the tray and is connected with the tray through a screwing nut. Lateral force between an existing tray and an existing spring barrel is avoided; in the motion process, the frictional resistance is small, and the transmission efficiency is high. By means of an adjusting tool, spring pre-compression amount adjusting becomes convenient and rapid, the spring pre-compression amount can be adjusted without taking down the tray and the compression spring, and the work efficiency is improved.
Owner:SHANGHAI SIEYUAN HIGH VOLTAGE SWITCHGEAR +1
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