4576results about How to "Overall small size" patented technology

A wide-bandwidth antenna with antenna pattern control includes a radiator and a feed. The radiator includes two or more volumetric radiating elements. The feed includes two or more feed units, the feed units configured to provide wave signals to the volumetric radiating elements. The feed units provide an independent signal for each radiating element. The wave signals can be fed out of phase to each other. Depending on the dielectric filler inside the volume of the antenna and the phase shift between feeds, the pattern can be modified electronically leading to pattern control. The radiating elements are spaced at a distance at least one order of magnitude smaller than half of an operational wavelength of the antenna. At least one electrically conductive element of the antenna is capable of conducting a current that generates a magnetic field. The magnetic field lowers the total reactance of the antenna, thereby resulting in enhanced performance of the antenna in terms of bandwidth, gain, and pattern control. The volumetric design allows miniaturization of the antenna.

The invention discloses a process for preparing mordenite / ZSM-5 mixed crystal material, which comprises charging mordenite into ZSM-5 synthesized reaction mixture as seed crystal, and water thermal crystallization. The invention realizes low preparation cost and more ideal catalyzing performance.

An image display apparatus includes an image projection unit that projects image display light, an intermediate image forming unit that forms a real image based on the image display light projected from the image projection unit, and a projection mirror that reflects the image display light, which has passed through the intermediate image forming unit, toward the surface for presenting a virtual image. The intermediate image forming unit has a first means that controls the direction of a chief ray of the image display light, which has passed through the intermediate image forming unit, and a second means that controls the light distribution angle of the chief ray.

The invention discloses a dual-power driven anion air purifier. The dual-power driven anion air purifier comprises a housing case, an impeller, a minitype low-speed direct current motor, an integral anion generating and driving plate and a 5V direct current power interface arranged on the side face of the housing case, wherein the impeller, the minitype low-speed direct current motor and the integral anion generating and driving plate are arranged in the housing case; the head end of the housing case and the tail end of the housing case communicate with each other for allowing air to flow, and magnets are inlaid at the tail end of the housing case; the impeller is located on the tail portion of the housing case and fixedly connected with an output shaft of the minitype low-speed direct current motor, the input end of the minitype low-speed direct current motor, the output end of the minitype low-speed direct current motor and the output end of the 5V direct current power interface are electrically connected with the integral anion generating and driving plate, and the integral anion generating and driving plate is located on the front portion of the housing case. The dual-power driven anion air purifier has the functions that operating is conducted by self-generated electricity under the strong natural air flow environment, meanwhile, air most proximate to the nature can be generated through an external power source, and a very outstanding health care effect on the health of people is achieved.

The invention discloses a wear type lower limb assistant robot, a folding method thereof and a hand luggage for carrying. The robot is characterized by comprising a lower limb assistant mechanical device and a servocontrol system, wherein the lower limb assistant mechanical device is provided with wearable assistant mechanical legs which are symmetrically arranged on the two sides of a wearable waistband. The wearing load on human bodies can be effectively relieved, and the robot has the characteristics of high safety performance, simple man-machine coordination control, good following assist effect, high cost performance and the like; the robot can be changed into a portable body which is compact in structure through the folding method, and a user can conveniently carry and store the robot in various manners through matching with the hand luggage for carrying, so that the nursing requirements of the middle-aged and the aged people on daily activities such as walking and walking up and down stairs can be better satisfied.

An ink jet recording apparatus in which a UV curable ink is ejected from nozzle holes of an ink jet head. The ejected ink is attached onto a recording surface of a recording medium (recording paper), and is cured by irradiation with ultraviolet light. The ink jet head, or a moving member which moves together with the ink jet head, is provided with a plurality of ultraviolet light emitting diodes that emit the ultraviolet light to the ink attached onto the recording surface of the recording medium to cure the ink.

The invention relates to an unmanned aerial vehicle-mounted laser radar system, which consists of an unmanned aerial vehicle flying platform subsystem, a laser radar subsystem and ground protection and communication subsystems, wherein the unmanned aerial vehicle flying platform subsystem takes an unmanned helicopter as a carrying platform, the laser radar subsystem is used for acquiring three-dimensional spatial information and digital image data and consists of a laser scanner, an IMU (Inertial Measurement Unit), and a high-resolution aerially-photographing digital camera, and the ground protection and communication subsystems are used for protecting flying safety and timely returning working state information of the system. With the adoption of the unmanned aerial vehicle-mounted laser radar system, the patrol efficiency can be increased, the patrolling means is scientific, intuitive and accurate, the potential problems can be timely discovered so as to ensure safe operation and reduce economic losses, and thus, the unmanned aerial vehicle-mounted laser radar system has the characteristics of low cost, simplicity for operating, high accuracy of data and the like.

A two-step switch, which may be minimized in radial direction and is suitable for PCB or FPC circuit board, has a first contact spring, having outer peripheral contacts in regular contact with first fixed contacts and having an inner contact inside the outer peripheral contacts and reversed by depressing, and a second contact spring, stacked on the first contact spring via an insulation sheet, having an outer peripheral contact in regular contact with a second fixed contact and having an inner contact inside of the outer peripheral contact and reversed by depressing. Through a first depressing, the inner contact of the first contact spring is reversed and in contact with the inner contact of the second contact spring, whereby a first electric circuit is actuated. Also through a second depressing, the inner contact of the second contact spring is reversed and in contact with the third fixed contact, whereby a second electric circuit is actuated.

A display device is provided. The display device includes: a display panel provided with a plurality of display electrodes, where the display electrodes are configured for displaying images, display electrodes located within a predetermined region of the display panel are defined as first electrodes, the first electrodes are configured for fingerprint sensing, and a stage during which the first electrodes perform the fingerprint sensing is defined as a fingerprint sensing stage; and a driving circuit configured to, provide display signals to the display electrodes to display the images, and provide a fingerprint sensing signal to the first electrodes during the fingerprint sensing stage and perform a self-capacitance detection on the first electrodes, to implement the fingerprint sensing. A driving circuit, a method for driving the display device, a liquid crystal display device and an electronic apparatus including the display device are provided.

The invention discloses a rotating type rigidity-changing flexible joint which comprises a driven rigidity-changing mechanism and a driving flexible drive mechanism. The rotating type rigidity-changing flexible joint is characterized in that the driven rigidity-changing mechanism mainly comprises an output plate of the joint, a first drive plate of the joint, a second drive plate of the joint, a first cam set, a second cam set, a first cam set installing base, a second cam set installing base, a bare shaft, a supporting base of the bare shaft, a rigidity adjusting installing plate, a linear bearing and a spring. The first drive plate of the joint is fixedly connected with the second drive plate of the joint. The second drive plate of the joint and the output plate of the joint are provided with cam grooves with the same outline. By means of the outlines, the equivalent rigidity of the joint can change along with the flexible deformation angle of the joint. Cams of the first cam set and the second cam set can make contact with the second drive plate and the output plate of the joint at the same time. The driving flexible drive mechanism mainly comprises a trapezoidal lead screw, a lead screw supporting base, a lead screw nut, a lead screw bearing, a direct-current servo motor, a motor installing base, a coupler, a rigidity-changing adjusting base, a linear bearing and a spring.

The invention discloses an all digital frequency converting method and a device thereof, being easily realized for hardware. The method and the device are essentially used for sample rate convertion of rational number-times of baseband signals and the convertion of the baseband signals and the intermediate frequency signals in digital communication. Under the coordination of control signals and enabling signals, the convertion of signal sample rate can be finished and the convertion of the baseband signals and the intermediate signals can be finished through the reasonable matching of variable integral number-times wave filtering and fraction-times interpolation. The system of the invention essentially comprises a frequency mixer, a cascade connection integral comb filter, a fraction-time interpolating device, a half-band filter, a signal shaping filter, a power detection module and a control interface. The configurable hardware implemented structure of the invention is applicable to a plurality of modulation methods, has the advantages of low resource consumption and good portability, and is used for various wireless communication systems such as multilevel phase shift keying (MPSK), orthogonal frequency division multiplex (OFDM), direct sequence spread spectrum (DSSS) and continuous phase modulation (CPM), etc.

The invention relates to a flexible tubular solid liquid processor, with filter, heat exchange and thermal extraction functions, wherein the filter element at least comprises one flexible tubular membrane unit, upper flange room and lower flange room; the hydraulic extracting system comprises pressure container, extract pump and tubes; the material liquid of container can be filtered by the tubular filter membrane of membrane unit, and said material liquid can be used as work medium to extract the concentrated material liquid in the filter room of membrane unit and discharge filter slag; the pressure container or the filter room of membrane unit can be filled with medium to exchange heat, to realize thermal filter or extraction; the filter element is arranged on the bearing base inside the pressure container; the filter rotator can rotate the filter element to realize cross-flow filter; and the invention can be arranged with gas or water reverse tube and vacuum filter tube; the slag discharge system comprises slag discharger or tubular inner / outer membrane scraper, or vibration slag discharger, or compression slag discharger.

The invention discloses a resonant compensation topology variable magnetic coupling resonant wireless electric energy transmission device and method. The transmission device comprises a rectification module, an emitting end voltage stabilization module, a high-frequency inversion module, an emitting end coupling resonant coil, a receiving end coupling resonant coil, a receiving end resonant circuit capacitor, a receiving end rectification module, a receiving end voltage stabilization module, a variable resonant compensation circuit module and a detection control module, wherein the input end of the variable resonant compensation circuit module is connected with the output end of the high-frequency inversion module; the output end of the variable resonant compensation circuit module is connected with the emitting end coupling resonant coil; the detection control module is used for detecting charging parameter and input parameter information, and driving the on-off of an MOS (metal oxide semiconductor) tube and the on-off of a controllable switch. At a constant current charging stage, the series / series resonant compensation topology is used; at a constant voltage charging stage, the LCC / series resonant compensation topology is used; on the premise of not changing an electric automobile side receiving end device, the unique requirements of electric automobile charging are effectively met; the efficiency and power optimization of a wireless electric energy transmission system is considered.

A small flat bending fatigue test machine can dynamically monitor and test the fatigue of a specimen (material) and is based on an acoustic emission technology. The machine includes a plurality of parts, such as a mechanical device, a loading device, a tester, a display or recording device, etc. The mechanical device and the loading device are integrated and adopt an eccentric wheel rotating mechanism and a dynamic loading method; the tester includes two parts, namely a load test system and a specimen test system; the load test system consists of a limit switch, an electronic accumulation calculator, etc.; the specimen test system adopts an acoustic emission sensing electronic technology and a computer technology; the specimen is arranged on the mechanical device and the loading device; the loading device pressurizes the specimen on the mechanical device; the specimen is provided with an acoustic emission sensor; the acoustic sensor is connected with a load tester; the signal is input into the computer technology, and the display or record device obtains the bending fatigue test result of the material.

The present invention discloses a press-fitting type jaw overrunning clutch, which can be used as a single or double direction overrunning clutch or a single and double direction controllable glider, and has the characteristics of huge transmissible torque, high rotating speed, no collision, small volume, large impact resistance, simplicity and reliability, and long service life. The present invention is characterized in that the press-fitting type jaw overrunning clutch is provided with a blocking embedding mechanism preventing two embedding mechanisms of a force transmission embedding mechanism and a separation embedding mechanism from being embedded under the overrunning separating condition, the mechanism on the axial direction is positioned in the two mechanisms, and the mechanism on the radial direction is positioned in the two mechanisms, between the two mechanisms or outside the two mechanisms; a lift angle of both sides blocking the working surface is formed to enough ensure the friction self-locking collided on the both sides and the stability of the blocking operating condition, in order that the lift angle has the capabilities that the adaptive axle base is changed and the abrasion is automatically compensated; no collision characteristic of the overrunning operating condition of the two embedding mechanisms is maintained for a long time, and the separating block process and the embedding return process of the embedding mechanism are absolutely reliable. In addition, the direction control mechanism and the condition control mechanism are simple and reliable, the clutch manufacture is relatively easy, the assembly is simple, and the interchangeability of an old part and a new part is strong.

The embodiment of the invention provides a piece of electronic equipment and a shooting method and device for the electronic equipment. The shooting method for the electronic equipment provided by the invention comprises the following steps: entering into a shooting interface and selecting a prepositioned camera, and when the prepositioned camera is used for shooting, adjusting a gray level of pixel of a liquid crystal display screen to a preset gray level and / or adjusting the color of the liquid crystal display screen to a preset color, thereby supplementing light for a shot object. According to the embodiment of the invention, the shot object is supplemented with the light by adjusting the gray level of pixel and / or the color of the liquid crystal display screen, so that the problem of a dim shooting effect of the prepositioned camera is solved.

The invention discloses a 3D (three-dimensional) NAND memory and a manufacturing method of the 3D NAND memory. The 3D NAND memory comprises multiple layers of storage arrays and multiple layers of control grid circuits, wherein each layer of the control grid circuit is electrically connected to the same layer of the storage array, so that selection of each layer of the storage array is realized; each layer of the control grid circuit is obtained by cascading a same number of transistors; grids of all the transistors of the control grid circuits are electrically connected to control wires; the number of the control wires is as the same as that of the transistors comprised in each layer of the control grid circuit; the grids of different transistors positioned on the same layer of the control grid circuit are electrically connected to different control wires. According to the 3D NAND memory, a small number of input control wires SSL select a large number of control grid layers through the control grid circuits, so that the area and the volume of the whole memory cannot be enlarged due to the increase of the number of the required layers of control grids when the storage capacity of the memory is improved due to the increase of the number of storage unit layers.

The invention discloses a liquid cooling LED lamp, comprising an electrical connector, a power supply, a lamp socket, a heat radiating lamp cover, an LED installation base plate, an LED and a light diffusion lamp cover at the lower part; wherein, the light diffusion lamp cover is made by nearly transparent material. The invention is characterized in that the light diffusion lamp cover is filled with heat conducting liquid. As the liquid cooling LED lamp luminaire is equipped with high performance heat conducting liquid (such as water, heat conducting oil, saltwater, glycol solution, dipivaloylmethane saturated solution and the like), the heat conducting is realized by conduction and convection to obtain good heat radiating effect. Meanwhile, the radiating lamp cover filled with high performance heat conducting liquid can be made by light weight materials, therefore, the radiating body is light in weight, environmentally-protective, durable in use, simple in production and low in cost.

The invention discloses an electrorheological fluid clamping tool for a light and low-noise gearbox. The electrorheological fluid clamping tool is used for positioning and clamping the end face of thegearbox in the machining process, the tool comprises a base, the base is provided with a workpiece bearing plate perpendicular to the base, a through hole used for mounting and demounting the workpiece is formed in the middle of the workpiece bearing plate, protruding positioning blocks are arranged on the inner wall of the through hole, flexible fluid bag storing grooves are formed in the positions, between the positioning blocks, of the inner wall of the through hole, flexible fluid bags are arranged in the storing grooves and connected with a cylinder body through guiding pipes, the cylinder body is internally provided with a piston, the space, at one end of the piston, inside the cylinder body, the guiding pipes and the flexible fluid bags constitute an accommodating chamber for electrorheological fluid jointly, the other end of the piston is connected with a piston driving mechanism, positive electrodes and negative electrodes are arranged at one end of the piston and the inner walls of the flexible fluid bags correspondingly, and the positive electrodes and the negative electrodes are connected with a controller. The electrorheological fluid clamping tool is simple in structure, convenient to use and good in workpiece clamping effect, clamping force in all directions of the workpiece is uniform and firm, and the workpiece can be quickly mounted and demounted.

The invention belongs to the technical field of assembly of automobile components, and particularly relates to an automatic assembling machine for an automobile door hinge. The automatic assembling machine comprises an annular plate and a transmission rotation disk which is arranged in the middle of the annular plate and rotates intermittently; follow-up clamps with the number corresponding to that of processes are distributed on the surface of the plate; the transmission rotation disk is also provided with pushing mechanisms which are used for pushing the follow-up clamps to move along the surface of the transmission rotation disk in the radial direction; and a clamp positioning mechanism and a process execution mechanism are distributed on the surface of the annular plate; the pushing mechanism has two position states, wherein one of the positioning states is that the pushing mechanism pushes the clamp to extend out of the transmission rotation disk to reach the clamp positioning mechanism for positioning to ensure that the process execution mechanism can performing assembly of the process; and the other position state is that: after the process is finished, the clamp is driven to be contacted to the transmission rotation disk and is separated from the clamp positioning mechanism of the assembly position of the process. The automatic assembling machine has a simple structure, is easy to maintain and operate, greatly reduces the operation cost of hinge assembly manufacturers, and improves the running reliability of equipment.

The invention discloses a detection device and a detection method for human motion information, belonging to the field of electronic information and mode identification. The detection device and the detection method of the human motion information are based on a single triaxial accelerometer and a Zigbee module; the detection method is based on a gait recognition technology and a statistical data modeling and can achieve detection of the human motion information by the triaxial accelerometer; the detection device comprises wireless sensing comprehensive modules arranged on a pair of shoes and an upper computer receiving module connected with a PC (Personal Computer) terminal; the device uses a trigger mode to perform wireless transmission for motion data in order to perform a human-computer interaction; due to a Zigbee low-power consumption design, a system can use batteries with smaller volume and capacity to reduce weight and volume of the whole system so as to be beneficial to be put at the bottom of the shoes; due to a voltage-stabilizing power supply design, an error of a quantized acceleration magnitude of an accelerometer after a working voltage drops can be avoided when the batteries are powered.

The invention belongs to the technical field of electrostatic spinning and relates to a portable handheld electrostatic spinning device. The top of a pushing rod of a medical syringe is provided with a pressure welding switch, a metal foil is arranged on the top side fixedly, a spinning solution is arranged in a front end inner cavity of the medical syringe, a square battery and a high-voltage direct-current inverter are arranged fixedly on the side wall of the syringe in a butt joint mode, and a stainless steel needle head which is used for spinning is arranged at the bottom end of the syringe in an inserting mode. A conventional medical syringe needle head structure and the syringe are combined and matched, the spinning solution is stored in the inner cavity of the medical syringe which is provided with the stainless steel needle head, the square battery provides a power supply for the high-voltage direct-current inverter, when the direct current voltage is inverted, the voltage in the unit of kilovolt, the positive pole of the high-voltage direct-current inverter is communicated electrically with the stainless steel needle head, and the negative pole of the high-voltage direct-current inverter is communicated electrically with the metal foils. The device is simple in overall structure, is convenient to carry, use and operate, applicable to occasions such as outdoor teaching and wounded rescue and high in economical value.

The invention discloses a cast magnesium alloy of low linear shrinkage, which belongs to the field of magnesium alloys. The magnesium alloy consists of Mg, Al, Zn, Mn, rare earth, Nb, Li and M element, wherein the materials have the following weight percentage composition: 1.5-25 percent of Al, 0.1-3.5 percent of Zn, 0.1-2.2 percent of Mn, 0.0002-16 percent of rare earth, 0.0002-4 percent of Nb, 0.0002-9 percent of Li, 0.0002-2 percent of M element and the balance Mg; and the M element is at least one of Zr, Ti, Sr, Ca, C and B. According to the heat-resistant magnesium alloy, the rare earth element and the Nb element are added into the magnesium alloy, so that the structure of beta phase is changed; the Zr element and the M element are added to refine crystal grains; due to combined action of the elements, latent heat of crystallization during alloy solidification is changed; and the magnesium alloy which has superior mold-filling capacity, low shrinkage, superior mechanical property and good machinability, fluidity and die-cast performance and is suitable for casting is obtained.

The invention discloses a charging fault diagnosis and safety detection system and method of an electric vehicle. The system comprises a BMS, a CAN wire, a VCU, a vehicle charger, a DC charging pile,an AC charging pile, a battery, a vehicle charging interface, a charging interface, a charging gun and a charging fault diagnosis and safety detection system, and the charging fault diagnosis and safety detection system comprises a signal acquisition unit, a national standard memory, a processing unit, a human-machine interaction interface and a relay. The method includes steps: the charging faultdiagnosis and safety detection system is externally connected between the vehicle charging interface and the charging interface of the charging gun, the connection to an electric vehicle charging system is realized through the CAN wire, and through collection of message information, acquired by the VCU, of the BMS and communication messages of the DC charging pile and the AC charging pile and comparison with an electric vehicle charging national standard, the reason of charging failure is determined, and charging is finished after occurrence of problems of overcurrent and overvoltage of charging. According to the system and the method, the charging detection efficiency and the charging security of electric vehicles can be greatly improved.

The invention discloses a group flying robot with distribution and self-assembly characteristics. The group flying robot comprises at least three single robots, wherein in the single robots, single forward peddle robots and single backward peddle robots are required to be simultaneously included; the single robots are respectively of a hollow cylindrical structure and are formed by coating casings with stands; and each single robot consists of a ground motion module, an active docking module, a passive abutting module, a sensing and positioning module, a flying power module and a control module which are respectively connected and arranged on the stand. The group flying robot disclosed by the invention has powerful ground omni-directional motion capability and can form various complex target configurations by self assembly and realize the integral flying control. The group flying robot has stronger environmental adaptability, control redundancy and survival ability.