356results about How to "Short path" patented technology

The storage arrangement has a chamber. Several Dewar flasks are arranged in the chamber and above them a picking device. The picking device has at least one cassette lift, with which storage cassettes can be removed from above from the Dewar flasks. This arrangement is suitable for storing laboratory objects at very low temperatures.

A technique dynamically splits Traffic Engineering (TE) Label Switched Paths (LSPs) in a computer network. According to the novel technique, a head-end node may determine that a TE-LSP to a destination needs to be sized to a larger bandwidth (a “larger” TE-LSP) than currently available over a single path to the destination (e.g., a path that may also be required to meet other constraints, such as cost, delay, etc.). In response, the head-end node may dynamically “split” the larger TE-LSP, and create a first split TE-LSP over a best (e.g., shortest) available path (e.g., that meets other constraints). The first split TE-LSP may reserve a maximum available bandwidth for that best available path. The head-end node may then continue recursively creating subsequent split TE-LSPs for any remaining bandwidth of the larger TE-LSP over available paths until the larger TE-LSP may no longer be split (e.g., all bandwidth has been placed, configurable maximum number of splits reached, etc.). Notably, the split TE-LSPs may be “re-groomed” at a later time to recombine and reorganize the split TE-LSPs.

It is a car wheel bearing analogue test load device, which comprises drive main axis 1 and test main axis 2, test bearing supportive structure, radial and axis load cylinder structure. The connection end between radial load oil cylinder and frame is fixed with a ball socket bearing 5. The connection end between the axis bearing load oil cylinder and frame is fixed with ball socket bearing 11. Its radial load oil cylinder down part is directly fixed with proportion decompression valve 21 and electromagnetism switch valve 20. Its axis load oil cylinder down part is directly fixed with proportion decompression valve 15 and electromagnetism 14.

A protective sheath of the type used to protect a scope during insertion of a fiber into the scope may include holes for improved fluid flow and for ease of sterilization, reinforcement, a luer connector to position the sheath relative to a scope and to enable use of a seal, pin vise or other device to secure the fiber to sheath during insertion or withdrawal of the sheath from the scope, and/or markings to facilitate positioning of the sheath relative to the scope and/or trimming of the fiber.

The slotting and milling cutter process for vane of integral vane wheel is completed in a numerically controlled machine tool with slotting and milling cutter advancing in the radial direction of the vane wheel and axial direction of the cutter. It has small radial force component caused by cutting, less vibration of the workpiece and the cutter, smooth cutting, small and controllable vane deformation, high machining quality and high machining efficiency. The present invention can meet the requirement of machining great diameter and high precision vane wheel product.

The invention discloses an implement method for automatic generation of a visible power grid trend chart in a dispatching system. The method comprises the following steps: (1) according to set chart forming granularity filter conditions, station pels and circuit pels are generated in a picture through a drawing tool of the dispatching system; (2) intelligent layout is conducted to the station pels through a network topological graph arithmetic based on an expanding mechanical model; (3) intelligent wiring is conducted to the picture after the intelligent layout by using a maze arithmetic; (4) a parameter in a bank is related automatically and labels such as measurement, a dynamic trend and a visible pie chart are conducted automatically, and the visible power grid trend chart is generated finally. According to the implement method for automatic generation of the visible power grid trend chart in the dispatching system, the visible power grid trend chart needed by the dispatching system can be generated rapidly, so that powerful technical support is provided to implement of the dispatching system and power grid analytical research. Due to intelligent and automatic chart forming process, efficiency is improved, omissions caused by human factors are greatly reduced and technical guarantee is provided to safe and stably running of a power grid.

A semiconductor chip package has a substrate that includes circuit lines provided on first and/or second surfaces, a power plane provided on the second surface, bump lands provided on the second surface and coupled to the circuit lines, and ball lands provided on the first surface. The package further has a semiconductor chip attached to the second surface of the substrate and electrically coupled to the circuit lines, and a dielectric layer provided on the second surface of the substrate. The dielectric layer surrounds laterally the chip, covers the power plane, and exposes the bump lands. The package further has a ground plane provided on both the chip and the dielectric layer, vertical connection bumps provided within the dielectric layer and on the bump lands and electrically coupled to the ground plane, and solder balls provided on the ball lands.

An acoustic transducer has a substrate having a cavity, a vibrating electrode plate disposed above the substrate and having a void portion that allows pressure to escape, a fixed electrode plate disposed above the substrate opposite the vibrating electrode plate, a plurality of sensing portions configured by the vibrating electrode plate and the fixed electrode plate, at least one of the vibrating electrode plate and the fixed electrode plate being divided into a plurality of regions, and a sensing portion being configured by the vibrating electrode plate and the fixed electrode plate in each of the divided regions, and a leak pressure regulation portion that hinders leakage of air pressure passing through the void portion when the vibrating electrode plate is not undergoing deformation.

The invention discloses an installation structure of a train roof jumper cable of the urban rail. A first high-voltage connector casing, a first high/low voltage connector, a second high/low voltage connector and a first low-voltage connector casing are positioned in the top of a first compartment; a second high-voltage connector casing, a third high/low voltage connector, a fourth high/low voltage connector and a second low-voltage connector casing are positioned in the top of a second compartment; the first high/low voltage connector on the first high-voltage connector casing is connected to the third high/low voltage connector on the second high-voltage connector casing via the jumper cable; and the second high/low voltage connector on the first low-voltage connector casing is connected with the fourth high/low voltage connector on the second low-voltage connector casing via the jumper cable. The installation structure has the advantages that the operation space is large, the installation environment is simple, and the structure is safer and more reliable; the service life is longer; the cable path is shorter, and the cost is reduced greatly; the sealing performance is higher; the whole installation structure can be dismounted rapidly, the occupation space is small, and the structure is beautiful and tidy; and it is not required to reconstruct end wall and channel structures, the workload is low, and the cost is lower.

The invention discloses an automatic protection method for a clock link in a packet transfer network. The method comprises: the synchronous state message of the clock is expanded to allow the synchronous state message to comprise a clock identifier, a clock quality rating, a number of network elements where the clock passes, a clock alarm instruction, a prohibited use identifier; each network element in the clock link processes the synchronous state message of the clock; and the each network element selects the clock source based on the synchronous state message of the clock. With the inventive method, the network element can automatically select the optimal route clock, prohibit the non-optimal route clock to participate in the selection, and efficiently prevent the ring formation of the clock.

The invention discloses a method for selecting the optimal path of a power distribution and utilization communication network based on the genetic algorithm. The method is characterized by including the following steps that first, a unidirectional topology network is established; second, the population is initialized through binary coding; third, the number of iterations is set; fourth, selecting operation is performed; fifth, crossover operation is performed; sixth, mutation operation is performed; seventh, judgment is performed; eighth, the optimal path is output. On the basis of meeting the constraint conditions, the optimal path is efficiently found so that the search efficiency can be improved and the search complexity can be reduced.

The invention discloses a power distribution network medium-voltage line route planning method based on city utility tunnels, and belongs to the technical field of power distribution network planning. The method mainly comprises the following steps: S1, establishing a medium-voltage line power supply planning area; S2, establishing a medium-voltage line route planning model; S3, optimizing a line route based on Dijkstra algorithm; S4, completing line connection on the basis of an increment shortest path method. The route planning is divided into two steps by establishing a medium-voltage line route planning model in power distribution network planning under the construction background of new city district utility tunnels: firstly using a shortest route method to primarily form a power supply network, and realizing optimization for cable route in grid to complete trunk line planning; and then completing line connection based on an increment shortest route method. Compared with a heuristic algorithm, the method has the characteristics of clear concept, high calculation speed and good planning effect. The planned power distribution network medium-voltage line is applicable to the construction condition of city utility tunnels, and is minimum in comprehensive investment cost and shortest in cable route.

The invention relates to a heat dissipating device for cooling a machine cabinet, in particular to a heat dissipating device adopting air-water exchanging refrigeration. A hot-air suction device is in a box-shaped stereostructure, an air inlet and an air outlet are arranged on the surface of a box body, a monitoring module is arranged in the box body, suction fans are installed on a position in the box body corresponding to the air inlet, and each suction fan is connected with the air outlet through an air channel; the scheme has a short heat dissipating path, shortens a working process, and further improves the heat dissipating efficiency of heat dissipating space; and each suction fan is connected with the air outlet through a single channel, the air entering one fan does not influence the air entering any other fans, the number and the revolutions of the suction fans doing work can be adjusted according to the temperature of the heat dissipating space, and the whole circulation process is controlled by a monitoring system. The scheme adopts partial redundancy design or total redundancy design, and all the operation can be switched onto a standby system when a main water coolingsystem has a fault, so as to ensure the normal running of the water cooling system, thereby maximizing the efficiency. The scheme has a short refrigeration path and strong pertinency, and can achievethe efficiency maximization.

The invention discloses an aircraft penetration trajectory planning method based on an RRT* algorithm and belongs to the field of aircraft trajectory planning. The implementation method disclosed in the present invention comprises the following steps: based on RCS data of an aircraft under different attitudes in a circumferential direction, a radar detection probability model is established to determine the probability that the aircraft is detected by radar during penetration processes; an aircraft penetration trajectory planning model is established based on a Dubins path; based on the RRT* algorithm and the aircraft penetration trajectory planning model, penetration trajectory planning is conducted, that is, the penetration trajectory planning is conducted based on combination of asymptotic optimality of the RRT* algorithm and a feature of a shortest Dubins path, the cost of aircraft penetration trajectory planning can be effectively reduced, an aircraft penetration trajectory can beobtained, and effective penetration of the aircraft can be achieved. Since no numerical integration method is needed for the Dubins path to solve a dynamic model, a principle to solve based on a geometric method, and therefore efficiency of the trajectory planning can be improved. The aircraft penetration trajectory planning method disclosed in the invention can be applied to stealth penetrationtrajectory planning of the aircraft, and is especially suitable for the stealth penetration trajectory planning of an airplane.

The invention provides a particle swarm algorithm-based robot path planning method, device and terminal device and belongs to the technical field of artificial intelligence. The method comprises building a model according to information of a robot active site, generating a simulation environment, randomly generating N initial paths that do not intersect with the obstacle according to the startingpoint and the end point of the robot motion, optimizing the N initial paths in the simulation environment through a particle swarm algorithm, selecting M global optimal paths from the optimized paths,and selecting a final path from the M global optimal paths through a Dijkstra algorithm-based method. Through the advantages of the particle swarm algorithm and the Dijkstra algorithm, a robot path is planned so that the smoothness of the optimal path is increased and the calculation efficiency is improved.

A filling device for filling containers with foods and closing the containers includes an endless conveyor system for conveying container holders; a container infeed mechanism for supplying containers to the container holders; workstations for carrying out operations on containers conveyed therealong, including a filling station and a closing station; a container discharge mechanism for removing containers from the container holders; at least one processing line provided along the conveyor track for containers to be processed; a housing that at least partially encloses the processing line; and gas supply means for feeding conditioned gases into the housing. The housing extends at least along the filling station and the closing station. Inside the housing, the gas supply means supply gas flow substantially close to filling apertures along outsides of containers. The gas supply means includes a plurality of adjacent gas outflow apertures opening into the housing.

The invention discloses a method for determining a routing path of a service. The method comprises the following steps of performing priority ranking on services according to importance; sequentially selecting one service according to the priority, determining the probability for each ant to select each side according to optimal pheromone concentration weight, optimal path length influence weight, optimal interferon concentration weight and interferon concentration, selecting apath by each ante according to the corresponding probability and determining the routing path of the service; updating the interferon concentration on the routing path of the service according to the optimal interferon volatilization coefficient and the importance of the service; and judging whether each service is routed, and if not all services are routed, returning to the step of sequentially selecting one service according to the priority. The invention also provides a corresponding device. The total risk is reduced, the service route is short to the greatest extent, and the service path length and service load balancing degree are unified.

A bonding film has at least a left longitudinal branch, and a lower latitudinal branch; a first bonding area is configured in a first branch, and a second bonding area is configured in a second branch. A plurality of outer top metal pads and a plurality of inner top metal pads are exposed on a top surface within each bonding area. A central chip is configured in a central area of the bonding film and is electrically coupled to the inner top metal pad, and at least two peripheral chips are configured neighboring to the central chip and electrically coupled to the outer top metal pads. Each of the inner top metal pads is electrically coupled to a corresponding outer top metal pad through an embedded circuitry. The central chip communicates with the peripheral chips through the inner top metal pad, embedded circuitry, and outer top metal pad of the bonding film.

An automated packing station for automated loading of load carriers with piece goods and for automated wrapping a stack with a foil, comprising: a fixedly arranged packing robot; and a rotational-arm winding device arranged adjacent to the packing robot and comprising a frame which is adapted to absorb forces which occur during the wrapping of the stack with the foil, and to forward the forces to an environment of the packing station.

The invention discloses a vehicle route optimization processing method, comprising the following steps: a, collecting order quantity, network point quantity, network point distance matrix and vehicleinformation; B, setting whether the time window and/or the line template are open; (c) the order quantity, the number of dot, the distance matrix of dots, the vehicle information, whether the time window is open, and whether the route template is open are taken as constraint conditions, the ant colony genetic fusion algorithm is adopted to iteratively calculate the optimal path, and the dot pheromone is updated; Reasonable use of constraints in this design, ant colony genetic fusion algorithm iterative calculation after replication and transformation, the shortest path, and the results of performance indicators are good.

A solder preform has gaps extending from the boundary of preform towards the preform center. During reflow soldering, the gaps close from the center towards the boundary. This allows flux and gasses to escape the interface between the solder and the substrate. Particularly, flux accumulates in the spaces formed by the gaps and is forced to the edge of the solder preform as the gap closes. In further embodiments, channels are formed on one or both surfaces of the solder preform. In addition to further assisting in the escape of gas and flux during reflow, the channels and gaps increase the effectiveness of oxygen purging using inert or reducing gasses in the reflow chamber. Additionally, the channels and gaps increase the effectiveness of vacuum solder.

The invention relates to an automatic parking trajectory planning method based on deep enhanced learning. The method comprises the steps that a two-dimensional virtual parking environment is established according to information obtained by a visual system; parking movement of a vehicle is simulated to obtain the steering angles of a steering wheel; a series of corresponding steering wheel steeringangles in the automatic parking process are obtained by establishing an automatic parking model based on deep enhanced learning and adopting a deep enhanced learning method, and an automatic parkingtrajectory is generated; whether or not collision of a vehicle takes place in the virtual parking environment is judged, if yes, the two-dimensional virtual parking environment is initialized, the next parking training is started, otherwise the next step is started; the automatic parking trajectory is planned, and the length and time consumption of the trajectory are comprehensively considered toscreen out the optimal automatic parking trajectory. The method has the advantages that the method can be applied to different parking environments, the planned trajectory is more reasonable and optimized, a controlling strategy is combined, the vehicle can follow the trajectory to rapidly enter a parking space automatically without being operated by a driver, and the accuracy and the reliabilityare improved.