36results about How to "Work independently" patented technology

The invention discloses a self-powered type nonlinear piezoelectric vibration energy extraction circuit. The circuit comprises a nonlinear energy extraction circuit module, an extremum detection circuit module and a power supply circuit module, wherein the nonlinear energy extraction circuit module is used to collect charges of a piezoelectric material, convert the charges into a direct current and output to an external load so as to carry out power supply, wherein the charges are generated because of strain; the extremum detection circuit module is used to detect a charge extremum on a piezoelectric material surface and emit a control signal so as to control on and off of the nonlinear energy extraction circuit; the power supply circuit module is used to provide power for low-power electronic devices in a nonlinear energy collection circuit module and the extremum detection circuit module. Compared to a standard circuit, by using the nonlinear energy extraction circuit provided in the invention, recovery power is greatly increased and a high output voltage is possessed; various kinds of power supply management modes can be matched; a wide application prospect is possessed for power supply of a wireless network sensing node.

A method of providing a program for a printed board packaging line is disclosed. A board packaging line coordinating computer downloads the service contract information and the application program contained in the contract information from an application server, and defines the board packaging line covered by the program and the device configuration of the line. The device configuration thus defined is uploaded to the application server, which, based on the device configuration thus uploaded, searches a prepared device driver group for a required device driver. This device driver is downloaded and set in each device by the board packaging line coordinating computer.

A tri-band satellite navigation antenna for a COMPASS, a GPS and a GLONASS comprises three layers of micro-strip antenna bodies, feed coaxial probes, metal clamp plates, strip line mediums, feed networks and a set of metal screws. High-dielectric-constant ceramic mediums are adopted in all the mediums of the three layers of micro-strip antenna bodies so as to reduce the size of the antenna. Circular polarization of the first-layer micro-strip antenna body is realized through the methods of single-point feed and angle cutting on a metal patch, and circular polarization of the second-layer micro-strip antenna body and circular polarization of the third-layer micro-strip antenna body are realized through double-point feed. The number of the feed probes contained in the medium of each layer of micro-strip antenna body is not more than two, so that three ports have better electromagnetic isolation. The set of metal screws is arranged around the micro-strip antenna bodies, the metal screws can be used for fixing the metal clamping plates and strip line feed layers, and the metal screws can also expand the lobe width of the antenna. The tri-band three-port antenna has the advantages of being small in size, low in section, wide in lobe, good in low elevation angle gain and axial ratio and high in port insulation degree, and suiting to be used as a satellite navigation terminal receiving antenna.

The invention discloses a vehicle dynamic weighing sensor. The vehicle dynamic weighing sensor comprises an optical fiber microbend-elastic oil pipe sensor, an optical fiber raster-hydraulic sensor, first transmission optical fiber, second transmission optical fiber, third transmission optical fiber, fourth transmission optical fiber, a light intensity demodulation module, an optical wavelength demodulation module and a restrictor valve, wherein laser emitted by the light intensity demodulation module is introduced from the first transmission optical fiber to the optical fiber microbend-elastic oil pipe sensor and then is led out by the second transmission optical fiber to the light intensity demodulation module; laser emitted by the optical wavelength demodulation module is introduced from the third transmission optical fiber to the optical fiber raster-hydraulic sensor and then is led out by the fourth transmission optical fiber to the optical wavelength demodulation module; at least one overflow hole is formed in the restrictor valve; and the optical fiber microbend-elastic oil pipe sensor is communicated with the optical fiber raster-hydraulic sensor through the restrictor valve. The vehicle dynamic weighing sensor has high anti-electromagnetic interference capacity, measurement accuracy and high durability, is convenient to carry and realizes remote monitoring easily.

The invention discloses a miniaturized magneto-electricity energy converter with controllable temperature and controllable stress. The miniaturized magneto-electricity energy converter with the controllable temperature and the controllable stress comprises a magneto-electricity composite structure, an encapsulation shell, an antimagnetic screw, an antimagnetic piston and a plurality of semiconductor temperature control sheets which are arranged on the upper surface of the magneto-electricity composite structure. The magneto-electricity composite structure is a laminated composite structure composed of two pieces of giant magnetostrictive material and a piece of piezoelectric material in a laminated adhesion mode, wherein the piezoelectric material layer is clamped between the two pieces of giant magnetostrictive material. A hole is formed in one side surface of the encapsulation shell and the antimagnetic screw is placed in the hole. The antimagnetic piston makes contact with the upper piece of giant magnetostrictive material and the lower piece of giant magnetostrictive material of the magneto-electricity composite structure, and the antimagnetic piston and the piezoelectric material are arranged in the encapsulation shell in a spaced mode. An antimagnetic spring is arranged between the antimagnetic screw and the antimagnetic piston. A groove is formed in the side face, making contact with the giant magnetostrictive material, of the antimagnetic piston, and one end of the piezoelectric material is arranged in the groove. The upper face and the lower face of the piezoelectric material are coated with metal films serving as electrodes. The metal films are connected with an electrode line. The miniaturized magneto-electricity energy converter with the controllable temperature and the controllable stress has the advantages that the structure is simple, the size is small, use is easy, the use error is small, and the temperature and the pressure are controllable.

The invention provides a clamp ammeter based on a Rogowski coil. The ammeter comprises a shell, a detection jaw, a circuit board and a battery, wherein the detection jaw is electrically connected with the circuit board, a display screen is arranged on the shell, and the display screen is electrically connected with the circuit board. The ammeter further comprises a Rogowski coil electrically connected with the circuit board, a selector switch is arranged on the side wall of the shell and electrically connected with the circuit board, and the selector switch is provided with a first gear and a second gear. When the selector switch is switched to the first gear, the detection jaw works, and when the selector switch is switched to the second gear, the Rogowski coil works, so that the detection jaw and the Rogowski coil of the clamp ammeter can work independently, namely the clamp ammeter has two detection functions, and the multifunction of the clamp ammeter is greatly improved; and when the condition that is not suitable for detecting the detection jaw is met, the Rogowski coil can be used for detecting and measuring, so that the detection convenience of the clamp ammeter and the maintenance convenience of maintenance personnel can be well improved.

The invention discloses a plugging-type interlayer for a multi-pulse fuel gas generation device, relates to a plugging-type interlayer, and belongs to the field of fuel gas generators. The plugging-type interlayer comprises an installation sleeve, a connection screw, a plug and a gasket. The plug is arranged inside the installation sleeve. The gasket is placed on the plug and the installation sleeve. The connection screw is fixedly installed inside a threaded hole of the installation sleeve through the gasket, so that the effect of fixing the gasket and the plug is achieved. The invention further discloses a using method of the plugging-type interlayer for the multi-pulse fuel gas generation device. According to the plugging-type interlayer, external threads are tapped on the outer surface of the installation sleeve, machining and installation are convenient, the replaceability is high, the plugging-type interlayer can be designed into different types according to different application occasions, meanwhile, axial one-way limiting of the structure of the plug is sufficiently utilized, it is ensured that the pulses in the multi-pulse fuel gas generation device can normally and independently work, the structure is simple and reliable, and the cost is low.

The invention discloses a USB printer data monitoring analysis system and method. The system comprises a data acquisition module and a page restoring and content resolving module, wherein the data acquisition module is used for acquiring the data and commands sent by a host to a USB printer and transmitting the data and commands to the page restoring and content resolving module; and the page restoring and content resolving module resolves the data from the data acquisition module, distinguishes the printing page information from the USB printer information and starts a simulation restoring function to restore the printing page information. Without changing original printing connection relationship and without restriction of a monitoring platform, the system disclosed by the invention has the characteristics of independent work, unified application, convenience in deployment and the like and is suitable for the third-party supervision and information analysis.

The invention discloses a 3D printer. The 3D printer comprises a frame, a printing head and a workbench assembly. The printing head is connected with the frame and can move relative to the frame. The workbench assembly is connected with the frame. The workbench assembly comprises an object workbench. The object workbench is suitable for supporting an object needing to be printed in the printing operation period. The workbench assembly is suitable for at least moving between the storage position and the operation position relative to the frame. The invention further discloses a method for changing the 3D printer from the storage position to the operation position. Due to the fact that the state of the printer can be flexibly changed for storage and printing, a user can easily move the printer away with one hand like a suitcase; and on the other hand, the integral function provided by the 3D printer is still reserved.

The present invention provides a seat belt retractor and a seat belt device containing said seat belt retractor, and the limitation load of any kind of seat belt can be set corresponding to the emergency and the seat belt retractor can be minimized and the second EA mechanism (41) which has a simple structure can work simply. The second EA mechanism (41) positioned on the end of the spool (4) arranged coaxially with the spool (4) includes an energy absorber supporting member (43) positioned on the end of the spool (4) with ratchet teeth (43b); an energy absorbing plate (42) positioned between the energy absorber supporting member (43) and the spool (4), and a lever (44) which is engaged to the ratchet teeth (43b). Normally, the lever (44) is not allowed to engage the ratchet teeth (43b) of the energy absorber supporting member (43) not to allow the operation of the second EA mechanism (41). When the operation of the second EA mechanism (41) is required in the event of an emergency, the lever (44) pivots to engage the ratchet teeth (43b), whereby the second EA mechanism (41) starts its EA operation.

The invention discloses a contactor having low eddy-current loss. The contactor comprises a moving contact, an inductive coil, a rotating bar, an iron core, a fixed contact, a mounting base, a horizontal cross bar and a bottom plate, wherein the inductive coil, the mounting base and the horizontal cross bar are vertically arranged on the bottom plate, the inductive coil is arranged between the mounting base and the horizontal cross bar, the iron core formed by a plurality of silicon steel sheets by overlapping and riveting is also arranged on the end surface of the inductive coil, a shading coil is arranged on the end surface of the iron core, the fixed contact is also arranged on the mounting base, the moving contact is fixed at one end of the rotating bar, the horizontal cross bar is movably connected at the other end of the rotating bar, an armature is also arranged on the surface of the rotating bar, the armature faces the iron core, a wiring terminal is arranged under the rotating bar and on the mounting base, and the moving contact faces the fixed contact. According to the contactor, the structure is simple, two magnetic flows which have different time phases pass through the iron core by the shading coil due to the special iron core so that the total magnetic flow cannot exceed the zero, the noise is reduced, the eddy-current loss is reduced and the service life is prolonged.

The invention discloses a contactor with low eddy-current loss. The contactor comprises a moveable contact, an inductance coil, a rotating rod, an iron core, a static contact, a mounting base, a horizontal cross bar and a base plate, wherein the inductance coil, the mounting base and the horizontal cross bar are vertically arranged on the base plate; the inductance coil is located between the mounting base and the horizontal cross bar; the iron core is arranged on an end face of the inductance coil; the iron core is formed by piling and pivoting a plurality of silicon steel sheets; a shading coil is arranged on the end face of the iron core; the static contact is arranged on the mounting base; the moveable contact is fixedly arranged at one end of the rotating rod; the horizontal cross bar is moveably connected with the other end of the rotating rod; an armature is also arranged on the surface of the rotating rod; the armature is opposite to the iron core; wiring terminals are arranged under the rotating rod and on the mounting base; the moveable contact is opposite to the static contact. The contactor with low eddy-current loss has a simple structure; through the specially arranged iron core, the shading coil is utilized to cause the iron core pass through two fluxes at different time, so that the total flux does not exceed zero; the noise is reduced; the eddy-current loss is reduced; the service life is prolonged.

The invention discloses a loopback structure of a processor and a data loopback processing method. The loopback structure comprises a register file unit, a data storage unit and a data reading unit, wherein the register file unit is used for providing data reading and writing service for the data storage unit and the data reading unit; the data storage unit is connected with a register file unit and is used for reading data from a reading interface of the register file unit and feeding back the read data after being data conversion to the data reading unit; and the data reading unit is connected with a register file unit and a data storage unit and is used for converting data fed back by the data storage unit and writing the data into the register file unit through the register file unit. According to the invention, the efficiency of a processor can be improved, and the power consumption of the processor can be reduced.

The invention discloses a swing type anti-overturning protection device. The protection device comprises two protecting plates which are arranged on two sides of the bottom plate and hinged with the bottom plate and a press-down assembly which is contacted with a lifting device. Driving assemblies are arranged between the two protecting plates and the press-down assembly, the press-down assembly is hinged with the two driving assemblies, and the driving assembly is hinged with the protecting plate on the same side. The swing type anti-overturning protection device not only realizes higher passing performance when the aerial work platform moves, but also realizes the anti-overturning function when the aerial work platform works; secondly, because the press-down assembly is connected with the driving assembly to drive the two protecting plates to turn back and forth in the vertical and horizontal directions, and the three are hinged, the other protecting plate is not affected when one side protecting plate is abnormal and cannot turn over normally, the two protecting plates work more independently and the protection device is more suitable for bumpy working sites.

The invention discloses an ARM (Advanced Reduced Instruction Set Computer Machine) module of a remote station modem and a method for allowing the ARM module to be communicated with a serial device. The method comprises the steps that a Baud rate is set in a communication display window module according to a communication speed of the remote station modem and a satellite mobile communication terminal; the set Baud rate is transmitted to an ARM serial module; the remote station modem packages and subpackages data to be transmitted and received through a data transmission module and a data receiving module respectively; and the data and a parameter transmitted and received by the remote station modem are displayed in the communication display window module. According to the ARM module and the method, the communication quality between the remote station modem and the satellite mobile communication terminal can be guaranteed effectively; the ARM module is applicable to the remote station modems of other types, and is high in compatibility; and sectional gating is adopted for signal gating, the transmission speed can be selected independently, and the transmitted and received data can be packaged and subpackaged automatically, so that the remote station modem has powerful compatibility, and the system communication cost can be lowered effectively.

The invention relates to a vehicle external device for emergency. The vehicle external device comprises a controller, a signal transceiver and a communication module, wherein the signal transceiver is used for receiving a crash signal; the communication module is used for realizing communication with exterior; an output end of the signal transceiver and a control end of the communication module are connected with the controller; and the communication module is also connected with a speaker. According to the vehicle external device, a rescue request can be timely sent when an accident occurs.

The invention provides a remote intelligent monitoring system for a transformer. The remote intelligent monitoring system for the transformer breaks through the structural form of a traditional transformer monitoring system. In an actual working process, the monitoring system monitors and controls the temperature state of the transformer. A first temperature detector detects the temperature insidethe transformer and transmits a temperature signal to a controller. The controller transmits the signal to a remote control terminal in a remote control center by a wireless signal transmitting and receiving device. The remote control terminal is equipped with a corresponding wireless signal transmitting and receiving device. When the first temperature detector detects the temperature inside thetransformer is higher than a set value, the controller controls a sub-switch mechanism to cut off the circuit. A breakdown detector detects the voltages of main components such as a transformer coil and the like, and transmits a voltage signal to the controller. The controller transmits the signal to the remote control terminal in the remote control center by the wireless signal transmitting and receiving device. When the breakdown detector detects the breakdown of the main components such as the transformer coil and the like, the controller controls the sub-switch mechanism to cut off the circuit.

The invention provides a high-voltage high-power switch reluctance motor device. The device comprises an N-phase high-voltage high-power switch reluctance motor, a power unit and a phase-shifting transformer (T1); and Z power unit outputs are arranged in direct series corresponding to each phase winding of the switch reluctance motor; the switch reluctance motor device comprises Z*N power units, and three-phase electric source of the Z*N power units is provided by the secondary winding of the phase-shifting transformer. The number of the wires of the device of the invention is small, operation is reliable, and power is improved by a plurality of times.

The invention discloses a comprehensive screening instrument for moisture density and weight distribution characteristics of cigarettes. The comprehensive screening instrument comprises a hopper (1), a microwave device (2), a weighing device (3), a sorting device (4) and a case (5) on the outer layer, wherein the hopper (1) is used for accommodating a cigarette sample to be analyzed; the microwave device (2) is positioned at the downstream of the hopper (1) and is used for measuring the moisture and density of the cigarettes; the weighing device (3) is positioned at the downstream of the microwave device (2) and is used for measuring the weight of the cigarette; and the sorting device (4) is positioned at the downstream of the weighing device (3) and is used for sorting the cigarettes with consistent moisture, density and weight together. According to the comprehensive screening instrument for the moisture density and weight distribution characteristics of the cigarettes, detection and screening processes of the cigarettes are not damaged. On the basis of the device, a lossless microwave method is adopted for measuring the moisture and density of the cigarettes, the weighing device (3) is provided with a balance scale and a buffer mechanism and is used for accurately weighing the cigarettes, the sorting device (4) is a drawer type multi-gear cigarette sorting device, and the whole instrument has advantages of being compact in structure, reliable and efficient in operation and the like.

The invention discloses a slab nozzle inspection equipment with artificial measurement error avoidance, and includes a base, a left-right symmetrical bracket is fixed on the upper side of the base, and an adjustment cavity is arranged in the base. The end surface of the bracket is provided with two sets of four parking spaces, and the present invention adopts a lead screw active pulley and a wire. The belt connection between the auxiliary pulleys of the levers realizes the synchronization of the rotation of the left and right lead screws and ensures the stability of the car when it moves up and down. The hydraulic power is provided to switch the power of the left and right parking spaces to ensure that the left and right parking spaces work independently, Using a one-way bearing structure, the power is switched by whether to rotate synchronously to ensure that each parking space works independently.

The invention discloses a high-power high-frequency five-phase magnetic integrated transformer and belongs to the technical field of high-frequency transformers. The transformer comprises five single-phase transformers, an upper magnetic cover, a lower magnetic cover and an insulation structure. Each single-phase transformer comprises a magnetic core column, a primary coil and a secondary coil from inside to outside. The five single-phase transformers are arranged between the upper magnetic cover and the lower magnetic cover in a regular pentagon staggered sequence, the difference of input excitation phases of the five primary coils is 72 degrees, outgoing lines of the five primary coils are in star connection, and incoming lines of the five secondary coils are in star connection. The insulation structures are arranged between the magnetic core column and the primary coil, between the primary coil and the secondary coil, and between the five secondary coils and the upper and lower top covers. The high-power high-frequency five-phase magnetic integrated transformer designed by the invention has the advantages of high power density, high heat dissipation performance and high working stability, and has a large-range leakage inductance and excitation inductance adjustment interval.

The invention relates to a high-precision electronic belt scale. The belt scale comprises two scale bodies and a weighing instrument which are sequentially arranged in a conveying direction of a beltconveyor, any scale body comprises a base fixedly connected to a rack of the belt conveyor, four weighing sensors distributed on the base in a matrix mode and a scale frame connected with the four sensors, and the weighing sensors of the two scale bodies are connected with the weighing instrument. Through structural improvement of the base and reasonable layout of the four weighing sensors on eachscale body, structural stability of the base is improved, problems of base inclination and center-of-gravity shift of the scale bodies due to deviation of a conveying belt are solved, each weighing sensor can work independently and stably, and therefore measurement precision can be effectively improved.

The invention discloses a miniaturized magneto-electricity energy converter with controllable temperature and controllable stress. The miniaturized magneto-electricity energy converter with the controllable temperature and the controllable stress comprises a magneto-electricity composite structure, an encapsulation shell, an antimagnetic screw, an antimagnetic piston and a plurality of semiconductor temperature control sheets which are arranged on the upper surface of the magneto-electricity composite structure. The magneto-electricity composite structure is a laminated composite structure composed of two pieces of giant magnetostrictive material and a piece of piezoelectric material in a laminated adhesion mode, wherein the piezoelectric material layer is clamped between the two pieces of giant magnetostrictive material. A hole is formed in one side surface of the encapsulation shell and the antimagnetic screw is placed in the hole. The antimagnetic piston makes contact with the upper piece of giant magnetostrictive material and the lower piece of giant magnetostrictive material of the magneto-electricity composite structure, and the antimagnetic piston and the piezoelectric material are arranged in the encapsulation shell in a spaced mode. An antimagnetic spring is arranged between the antimagnetic screw and the antimagnetic piston. A groove is formed in the side face, making contact with the giant magnetostrictive material, of the antimagnetic piston, and one end of the piezoelectric material is arranged in the groove. The upper face and the lower face of the piezoelectric material are coated with metal films serving as electrodes. The metal films are connected with an electrode line. The miniaturized magneto-electricity energy converter with the controllable temperature and the controllable stress has the advantages that the structure is simple, the size is small, use is easy, the use error is small, and the temperature and the pressure are controllable.

The invention discloses a primary and secondary lamp. The primary and secondary lamp comprises a primary lamp body and a secondary lamp body which is detachably arranged on the primary lamp body; a cavity for containing the secondary lamp body is formed in the primary lamp body, and a rechargeable battery is arranged in the secondary lamp body; and the primary lamp body charges the battery in a wireless power supply manner. The primary and secondary lamp has the advantages of being convenient to dismount and mount and capable of being independently used.

The invention discloses a solar water dispenser based on a honeycomb bionic evaporator. The solar water dispenser mainly comprises a solar photovoltaic power supply module, a solar seawater desalination module, a fresh water storage module and a seawater transmission module, and parts mainly comprise a photovoltaic panel, a storage battery, power equipment, the honeycomb interface evaporator, a convex lens cover plate, a heat conduction copper pipe, a water storage tank and the like. The solar photovoltaic power generation technology and the solar photo-thermal interface seawater desalination technology are integrated in the water dispenser, self-sufficiency can be achieved, and extra power is not needed. Solar energy is used as driving force, and extra energy is not consumed. The invention further provides a honeycomb interface evaporator, sunlight can be fully absorbed, water can be accurately supplied, the water evaporation and purification efficiency is improved, the convex lens array corresponds to the honeycomb array, and the water evaporation and purification rate can be increased through effective light condensation; the design that the heat-conducting flow-guiding copper pipe is added to the back face of the photovoltaic panel is adopted, so that heat lost by the photovoltaic panel is recycled, the water evaporation efficiency is improved, and energy waste is reduced.