329results about How to "Optimize the connection method" patented technology

The invention discloses an image edge detection method based on a Spiking-convolution network model, which belongs to the technical field of image processing and solves the problem that a method in the prior art only simulates the spatial hierarchical structure of a biological nervous system, but lacks interpretation to time characteristics. The image edge detection method disclosed by the invention comprises the following steps: creating the Spiking-convolution network model of a convolution structure having an input layer, a Spiking-convolution layer and an output layer based on an information processing connection manner of a visual hierarchical structure; using a Laplace-Gauss operator and a Gauss difference operator as a filter of the Spiking-convolution layer of the created Spiking-convolution network model of the convolution structure to form a Spiking-convolution algorithm based on the operators; obtaining an image, encoding gray value pixels of the image into Spiking neurons to serve as the input layer of the Spiking-convolution network model; applying the Spiking-convolution algorithm based on the operators to the Spiking-convolution network model, carrying out pulse convolution on the input layer, and then recreating and outputting the edge of the image according to a Spiking threshold ignition model. The image edge detection method disclosed by the invention is applied to image pre-processing, characteristic extraction and edge detection and relates to neural networks, machine learning and Deep Learning.

A sectional shelf is provided, which includes a plurality of shelves each having at least two hollow fastening parts and being stacked one by one to form desired shelf compartments, an upper portion of each shelf being opened, a plurality of hollow support members located between the shelves for supporting the shelves, an upper coupling member with one end inserted into an upper end of each support member and the other end inserted into a lower end of each support member, a threaded portion being formed on an upper end of the upper coupling member, and a lower coupling member with one end inserted into the lower end of each support member and the other end inserted into the upper end of each support member, a threaded portion being formed on a lower end of the lower coupling member and threadedly engaged with the threaded portion of the upper coupling member. The sectional shelf can permit easy assembling and disassembling of a plurality of shelves, and stably maintain the shape of the shelves assembled by support members and/or coupling members.

The invention discloses a tunnel convergence deformation monitoring method. The method comprises steps of boring, measuring point mounting, convergence meter mounting, monitoring and recovery. The invention further discloses a monitoring device. The monitoring device comprises a reflection adsorption measuring point and a connection mechanism, wherein the reflection adsorption measuring point comprises a foundation of which a bottom face is provided with a reflection coating layer, the middle portion of the top end of the foundation is fixedly connected with a conic thread anchor pole, the connection mechanism comprises a magnetic seat, the top end of the magnetic seat is equipped with a column through thread, the top end of the column is fixedly connected with a universal joint, the other end of the universal joint is fixedly connected with a connection rod, and the tail end of the connection rod is fixedly connected with a circular ring. The tunnel convergence deformation monitoring method and the monitoring device have advantages of convenient operation, high precision, good safety performance, fast speed, short construction period, low cost and wide application scope.

The invention discloses an electronic expansion valve. The electronic expansion valve comprises a valve seat, a valve needle, an external threaded shaft, a connecting piece and a compression spring, wherein the compression spring is installed outside the connecting piece; both ends of the connecting piece are respectively connected with the external threaded shaft and the valve needle, and the compression spring is located between the external threaded shaft and the valve needle and is configured, so that the connecting piece can be driven to move in an axial direction by the external threadedshaft, the external threaded shaft and the valve needle can relatively move in the axial direction, when a valve port is in the early stage of the full-closed state, spring force which is used for pushing the valve needle to the valve port cannot be generated by the compression spring, and when the valve port is in the late stage of the full-closed state, elastic load which is used for closing the valve is generated on the valve needle by the compression spring; the early stage is from the beginning of closing the valve port by the valve needle until the external threaded shaft moves for a preset value in the valve closing direction relative to the valve needle; and the late stage is that the external threaded shaft moves for more than the preset value in the valve closing direction relative to the valve needle. According to the electronic expansion valve, the wear of the valve needle and the valve port can be reduced, so that the valve port is prevented from leaking when the valve port is fully closed.

The invention discloses an adaptive Bluetooth test system and method. The method comprises steps that 1, an intelligent Bluetooth test unit is accessed to to-be-tested Bluetooth equipment, and a wireless communication protocol is connected with the to-be-tested Bluetooth equipment through a Bluetooth; 2, the intelligent Bluetooth test unit is used for sequentially carrying out emission power test, clock frequency test and sensitivity test on the to-be-tested Bluetooth equipment; and 3, after test is over, test states of the to-be-tested Bluetooth equipment are classified through a monitoring storage unit to carry out filing. The method is advantaged in that production cost is reduced, test problems can be easily solved without utilizing expensive professional Bluetooth test equipment; a test process is optimized, one-time test is accomplished through self-contained test steps without firstly downloading HCI instructions; a connection mode is optimized, the wireless communication protocol is employed for connection, and more stability and reliability are realized.

The invention provides a path planning method of double-mechanical-arm collaborative assembly operation. The path planning method comprises the following steps that a kinematics model and a dynamics model of the double-mechanical-arm operation are established; initial parameters are set, initial sampling is carried out, the distance between a tree node and a sampling point is calculated, and a nearest tree node is found to serve as a parent node; a candidate sampling point is added if no collision occurs; the potential energy of the sampling point is calculated, and roulette selection is performed according to the reciprocal of the potential energy to obtain the sampling point; the point with the cost less than r is added into a heavy connection point, the cost of the path formed by connecting the sampling point with the heavy connection points is calculated, and the connection mode of the shortest cost is selected to determine connection parent node of the sampling point; the connection mode with the lowest cost is selected to re-establish the parent-child relation of the node; the sampling point is replaced by using a target point when the potential difference between the sampling point and the target point is smaller than h, and a random tree is finished; and a planning path is determined according to the parent-child relation of the node of the random tree. According to thepath planning method of the double-mechanical-arm collaborative assembly operation, the high-quality path with short end movement distance, short operation time and low mechanical arm energy consumption can be planned.

The invention discloses a novel glass curtain wall. The glass curtain wall includes two glass curtain wall plates in parallel arrangement; one of the glass curtain wall plate is provided with a slidehole in a horizontal direction; the slide hole is inserted with a fixing rod slidingly connected to the slide hole; one end of the fixing rod is fixedly connected to one side of the other glass curtain wall plate; the fixing rod is sleeved by a transmission block slidingly connected to the fixing rod; the transmission block are symmetrically provided with first rotary shafts rotatably connected tothe transmission block; and the first rotary shafts are sleeved by clamping rings fixedly connected to the first rotary shafts. The advantages of the glass curtain wall are as follows: the two glasscurtain wall plates are connected to each other through a connecting device consisting of connecting rubber blocks, the fixing rod, rotating rods of the transmission block, limit blocks, a sleeve andslide rods; and through the combined usage of a first spring, a second spring, the clamping rings and second rotary shafts, the slide rods can move to the two sides to penetrate into the limit blockswhen the glass curtain wall plates receive wind pressure, so that connection stability can be increased.

The invention discloses an LED display device and an LED display screen case body. The LED display device comprises at least one LED unit board, a signal wire, a power wire and an earth wire; the LED unit board comprises a PCB, a plurality of groups of LEDs, at least two single-wire drive control chips and at least one connection part; each group of LEDs are arranged on the first lateral surface of the PCB, and each single-wire drive control chip is arranged on the second lateral surface of the PCB; each single-wire drive control chip is only provided with a signal input interface and a signal output interface, and the single-wire drive control chips are serially cascaded only through one control signal wire; the connection part is used for connecting the corresponding connection parts of other LED unit boards and fixedly arranged on the PCB; and the signal wire, the power wire and the earth wire are printed on the PCB respectively, and the adjacent wires are distributed in equal distance.

The invention relates to the technical field of structural design of engine components, in particular to an engine piston. The engine piston comprises a piston head (1) and a piston skirt (2) which are of split structures; an annular groove (4), a burning chamber (5) and an inner cooling oil channel (6) are machined in the piston head (1), and a single middle-mounted pin base (7) is arranged in the middle of a cavity of the piston head (1); a pin hole (11) perpendicular to the axis of the piston head (1) is machined in one end, far away from the piston head (1), of the middle-mounted pin base (7); the piston skirt (2) is in a barrel shape; the middle-mounted pin base (7) of the piston head (1) penetrates the barrel-shaped inner cavity from one end of the piston skirt (2); and the piston skirt (2) relatively penetrates into the middle-mounted pin base (7) in the inner cavity, a pin base hole (8) coaxial with a pin hole (11) of the middle-mounted pin base (7) is formed in the lateral wall, and pin connection of a three-pin-base structure is achieved by the piston head (1) and the piston skirt (2) through the above structure.

The invention discloses a composite type anti-violence kinetic energy bullet with a two-stage dissipation mechanism. The composite type anti-violence kinetic energy bullet comprises a bullet shell, ahigh-pressure chamber, a low-pressure chamber, a bullet body, an impact rod, a buffer, a supporting body, an impact disc, a capsule and a bullet cap. A primer is riveted to the axis of the bottom endface of the bullet shell, the columnar high-pressure chamber is arranged on the upper side of the primer, a fire hole is formed in the axis of the upper end surface of the high-pressure chamber, the bullet shell is connected with the bullet body in an inserted mode to form the low-pressure chamber, one end of the impact rod is adhered to the top of the inner cavity of the bullet body in a connected mode, and the other end of the impact rod is connected with the buffer in an inserted mode; the supporting body extends into the impact rod and is fixedly connected with the impact rod, the supporting body is sleeved with an impact disc, and a capsule filled with a coloring agent is arranged on the top surface of the impact disc; and the bullet cap is in adhesion connection with the bullet body.The bullet is compact in structure and ingenious in design, the flying stability is improved through self-rotation of the bullet body, the striking precision is high, the two-stage dissipation mechanism is designed, excessive damage generated during short-distance shooting can be effectively avoided, meanwhile, the expected pain-causing effect is guaranteed during long-distance shooting, and dyeing marking of group targets is achieved at the same time.

The invention discloses a laser remote wireless charging device based on visible indication light protection. The device forms a solar cell panel by adopting a plurality of photocell panels through serial connection and parallel connection, and thus the phenomenon that the current is limited by photocells with minimum photo-generated current when only the series-connected photocell panels are under non-uniform illumination, and energy loss and 'heat spots' are caused can be solved. By adopting a laser beam adjuster, laser beam divergence angles output by a laser can be optimized and the uniformity of the output laser energy can be increased; and the beam density and wavelengths of a semiconductor laser transmitter or a diode-pumped solid laser transmitter which is adopted are respectively matched with the energy gap width of the photocell panels which are made of GaAs or InGaAs materials, and thus the characteristics of high photoelectric conversion efficiency and low heat loss can be achieved. The device disclosed by the invention is high in charging efficiency, low in energy loss and fast in charging speed, and cannot be limited by the distance; the overall dimension of charging devices is small, and in addition, the optical wave in non-visible bands is adopted as an energy transfer form, and thus the light pollution and the interference to communication signals cannot be generated.

The invention provides a radio frequency device, which comprises a shell, a circuit board, an antenna, a signal transmission line and a connecting piece, wherein the circuit board is arranged in the shell; the antenna is arranged outside the shell; the signal transmission line is used for connecting the circuit board with the antenna; one side surface of the shell is provided with a jack; the antenna comprises an antenna body and a plugging part with a line hole, wherein the plugging part is connected with the antenna body; the cylindrical surface of the plugging part is provided with a lug; the connecting piece is similar to a ladder cylinder shape; the connecting piece comprises a through hole, a plug and a containing cavity, wherein the plug comprises a restriction part which can prevent the connecting piece from rotating around the axis on the ladder trend; the wall of the containing cavity is provided with a ring slot; the plug can be cooperatively plugged into the jack; the plugging part is arranged in the containing cavity in a transition fit mode; the lug is clamped into the ring slot; and the antenna body is connected to the circuit board via the signal transmission line. According to the radio frequency device disclosed by the invention, the connection mode of the antenna and the radio frequency device is optimized, and the cost is lowered, thereby being convenient for large-scale production and manufacture.

The invention relates to the technical field of data bus communication, and particularly relates to a bus system and a data transmission method based on a combination of polling and uniform time slots. The bus system includes a bus, bus adapters and electronic equipment, wherein the bus performs two-way communication with multiple bus adapters, and each of the bus adapters performs two-way or one-way communication with multiple sets of electronic equipment; and the communication between the bus and the bus adapters adopts the combination of polling and uniform time slots. According to the scheme of the invention, a combination of polling and competitive time slots is adopted, burst services can be processed in time through the uniform distribution of the competitive time slots, the mean waiting time can be reduced, the real-time response characteristics of the system can be improved, and meanwhile, by setting the polling time slots, congestion data caused by competitive collisions canbe effectively eliminated, the network congestion rate can be reduced, the system throughput can be guaranteed, and the polling and competitive time slots can be customized.

The invention discloses a puncture needle positioning support for a computed tomography (CT) machine. The puncture needle positioning support comprises a base, the base is provided with an installing block, the installing block is in an at least 1/4 ring shape, a sliding groove is formed in the installing block, a sliding block is slidably connected in the sliding groove and is in an at least 1/4 ring shape, the sliding block is provided with first scales for indicating an angle, one end of the sliding block extending out of the sliding groove is provided with a back cushion, and the back cushion is provided with second scales for indicating an angle. In the movement process, it is fully guaranteed that surrounding tissues and focus tissues are not damaged by a puncture needle. The puncture needle positioning support can also adapt to manual operation.

The invention discloses a waterproof and dustproof fan. The waterproof and dustproof fan comprises a seat body (1), a rotating fan blade (2), a magnetic ring (3), two bearings (41 and 42), a clamp spring (5), a stator component (6) and a plug (7), wherein the seat body (1) is provided with an internal shaft column (11) and an external shaft column (12); an annular cavity (15) is formed between the internal shaft column (11) and the external shaft column (12); the rotating fan blade (2) comprises a columnar wall (20), blades (24), and the large diameter end (22) and the small diameter end (21)of a stepped shaft which is coaxial with the columnar wall (20); an annular groove (23) is formed at the small diameter end (21); the magnetic ring (3) is fixed on the inner side of the columnar wall(20) and sleeved on the external shaft column (12); an annular convex block (18) is arranged in the internal shaft column (11); the two bearings (41 and 42) are sleeved at the small diameter end (21), embedded into the internal hole of the internal shaft column (11) and positioned on the two sides of the annular convex block (18); the clamp spring (5) is clamped and fixed on the annular groove (23); the winding of the stator component (6) is positioned in the annular cavity (15); and the opening end of the annular cavity (15) is sealed by the plug (7). The waterproof and dustproof fan can be applied to the field of fans.

The invention consists of the cable digital TV set-top box, the HFC network, the data management/dispatching server and data broadcast server. The above data management/dispatching server is connected with the data broadcast server through the communication interface. The above data broadcast server is connected with the cable digital TV set-up box through broadcast card and HFC network. The invention also discloses a display method of order program system. The data management/dispatching server generate the audio file of the song, the text file of the song, the video file and program list. The audio file is cut and is transmitted to the set-top box through the broadcast card of the data broadcast server. After user browses the program list and orders a song, the set-top box displays the song through TV set.

The invention relates to an energy-consuming steel rod replaceable beam-column joint node and a construction method thereof, which comprises a frame column, a precast beam, a prestressing tendon, and a laminated floor.A prestressing tendon channel is formed in the prestressing beam; a through tendon channel is formedin the position corresponding to the prestressing tendon channel in the frame column; the prestressing tendon is arranged in the prestressing tendon channel and a through tendon channel; the bottom of the precast beam near the both ends is provided witha connecting component; the connecting component comprises a rectangular box which is enclosed by four vertical side plates and a top plate and a vertical connecting rod connected to the top of the rectangular box; a lower side of the vertical side plate near one side of the frame column is provided with a notch; a connecting channel is formed inthe position corresponding to the notch in the frame column; and an energy-consuming steel rod is worn in the connecting channel. The construction method solves the difficult technical problems, comprising complicated construction of the traditional beam-column joints, the inconvenient installation of the energy-consuming steel bars, the complicated installation of the energy-consuming steel bars in the upper part of the prefabricated beams, the poor integrity of the structural floor panels, the difficulty in waterproofing between the floors, the difficulty in replacing the connected components after the earthquake, and the structural repair after the earthquake.