134results about How to "Improve applicable environment" patented technology

The invention discloses a rotation electromagnetic-friction composite nanometer power generator. The rotation electromagnetic-friction composite nanometer power generator comprises a friction nanometer power generation assembly, an electromagnetic induction power generation assembly and a magnetomotive assembly, wherein the friction nanometer power generation assembly comprises an electrode arrayand a flexible blade array, the electromagnetic induction power generation assembly comprises a power generation permanent-magnet array and a coil array, the magnetomotive assembly comprises an internal driving permanent-magnet array and an external driving permanent-magnet array, an outer cylinder, the electrode array and the coil array form a stator, and an inner cylinder, the power generation permanent-magnet array, the flexible blade array and the internal driving permanent-magnet array form a rotor. On one hand, composite power generation is achieved by function complement of the frictionnanometer power generator and the electromagnetic power generator, and the practical range is expanded; and on the other hand, an external power input part and a power generation part are separated by non-contact magnetic input power, and the device can be convenient and rapid to install, disassemble and maintain.

The invention discloses a method for constructing a bearing-free synchronous reluctance motor suspension system. During construction of the system, the method comprises the following steps of: constructing an expanded displacement observer; then transmitting three-phase detection current, which is subjected to coordination transformation, of a motor suspension winding and a torque winding into the input end of the expanded displacement observer; synchronously outputting a rotor displacement observed value and a suspension force reference value by the expanded displacement observer as input signals of an expanded suspension force/current modulator; transmitting deviations between two output current component rated values and two-phase detection current subjected to the coordination transformation into two input ends of an inner die controller respectively, and outputting two voltage rated signals as input voltage of a space vector pulse width modulation (SVPWM) inverter; supplying power to the motor suspension winding by the SVPWM inverter so as to generate an expected suspension force, and thus realizing rotor displacement observation for a controlled motor and decoupling control for the inner die of current of the suspension winding. The constructed suspension system has the advantages of high response speed, simple structure, high performance and the like.

The present invention relates to an underwater adaptive wireless optical communication apparatus. The apparatus includes an optical transmit terminal, an optical receive terminal and a main control board. Blue and green lasers are used for underwater communication. The blue and green lasers are at a seawater low-loss window, so that the transmission loss is low. In addition, blue and green reinforced photomultiplier tubes are used as photodetectors, and a preamplifier circuit and a main amplifier circuit are also used, so that the apparatus has good detection sensitivity and has a long communication distance. Active lighting and an echo signal are combined for measurement of optical parameters of water quality, so that the apparatus has a compact structure, is reliable in measurement, and has good commonality.

The invention discloses a permeable asphalt cement concrete road surface structure with a heating function; the structure comprises an asphalt permeable cement layer, a cement permeable concrete layer and a heating layer which are sequentially arranged from to bottom, wherein a heating pipeline is laid in the heating layer. In the technical scheme, the heating layer is laid under the road surface and can be used for melting the snow by heating in winter, and the melted snow water permeates into the part under the road surface through the permeable cement, so that the road surface is protected from being polluted by the snow water, and the damage to the road surface caused by the secondary freezing of the snow water can be prevented.

The invention discloses a suspension system construction method for parameter observation of a non-bearing synchronous reluctance motor. The method comprises: constructing a motor parameter observation system; detecting three-phase currents and voltages of a motor suspension winding and transmitting the three-phase currents and voltages into the input terminal of the motor parameter observation system; detecting the three-phase currents and voltages of the motor torque winding, sending the three-phase currents and voltages into an extended flux linkage estimation model, outputting a flux linkage observation value under a two-phase synchronous rotation coordinate by the extended flux linkage estimation model, and using the flux linkage observation value as one of input signals of an extended suspension force/current transformer; constructing the suspension force/current transformer and outputting a two-phase current reference value of a motor suspension winding by the extended suspension force/current transformer as an input signal of an extended hysteresis current inverter, providing power for the motor suspension winding by the hysteresis current inverter, generating an expected suspension force, and realizing `rotor displacement and inductance parameter observation of a controller motor under a non-displacement sensor. The constructed suspension system has advantages of quickresponse and excellent performance.

The invention discloses a variable-rigidity biomimetic falcula mechanism and falcula components thereof. The falcula components comprise a falcula mounting head and a falcula in elastic connection with the falcula mounting head, wherein the falcula comprises a micro claw connecting head and more than one micro claw unit; a claw tip is arranged on each micro claw unit; all the micro claw units are sequentially connected in series in a threadlike manner, a limiting post is arranged on the outer side end surface of the micro claw units at the end part, and every two adjacent micro claw units, as well as the micro claw units and the adjacent end surfaces of the micro claw connecting head, are in elastic connection; the rigidity of elastic connection between all composition components of the falcula is smaller than that of elastic connection between the falcula and the falcula mounting head; a movable connecting head is also arranged between every two adjacent micro claw units. Therefore, owing to the variable-rigidity characteristic of the falcula components, the grabbing stability of a climbing robot can be greatly improved, a bigger grabbing force can be provided, and the falcula components can adapt to more complicated work environments and has a wider application range.

The invention discloses a gradient-sized pore sintered core vapor chamber heat exchanger for electronic chip heat dissipation and a preparation method of the vapor chamber heat exchanger, belongs to the technical field of electronic chip heat dissipation. The vapor chamber heat exchanger is composed of a sintered core vapor chamber, heat dissipation fins, and a heat dissipation fan. A vapor chamber housing is filled with a gradient-sized pore sintered core. A vein-shaped channel is milled on the chamber top of the vapor chamber. Fins are welded to the outer top of the vapor chamber. The vaporchamber and the heat dissipation fan are fixedly installed. The bottom center of the vapor chamber is in contact with the chip in order to take away the heat released by the chip. The gradient-sized pore sintered core interacts with the top vein-shaped channel, thereby contributing to the rapid diffusion of steam to a cold wall, the return of a condensation liquid to the heated area at the bottomcenter of the vapor chamber with a small resistance under the effect of high capillary suction force, and the enhancement of the boiling and condensation heat capacity, increasing the boiling and condensation heat exchange area, greatly improving the heat transfer capability of the sintered core and expanding an applicable environment.

The invention discloses a power supply switching circuit employing a comparator. The power supply switching circuit comprises a comparator, a first inverter, a second inverter, a first buffer, a second buffer, a first PMOS switch tube PFET1, a second PMOS switch tube, a third PMOS switch tube and a fourth PMOS switch tube. The invention further discloses a signal transmission method of the power supply switching circuit employing the comparator. The power supply switching circuit has the technical effects that (1) the switching threshold is accurate, and the switching logic is obtained by judging the sizes of an off-chip input power supply and a backup power supply; (2) the power supply switching is reliable, and the jitter and the instability of the overall power supply switching circuit caused by the jitter of comparator output when the power supply voltage is near a threshold point are avoided by a positive feedback circuit; and (3) the applicable process range is wide, and the power supply switching circuit is suitable for all MOS technologies due to adoption of a mainstream MOS technology design at present.

The invention discloses a spring steel sheet type variable-rigidity gripper assembly and a gripper mechanism of the spring steel sheet type variable-rigidity gripper assembly. The spring steel sheet type variable-rigidity gripper assembly comprises a gripper body, an elastic connecting piece and a connecting frame. The gripper body is provided with grippers. The connecting frame comprises a gripper displacement fine adjusting part, and the gripper displacement fine adjusting part is connected with the gripper body through the elastic connecting piece. The elastic connecting piece is a series-connection elastic connection group and formed by connecting elastic pieces of different rigidities in series, the rigidities of all the elastic pieces in the series-connection elastic connection group change gradually, and the rigidity of the elastic pieces away from the gripper displacement fine adjusting part is larger than that of the elastic pieces adjacent to the gripper displacement fine adjusting part. It can thus be seen that the stability of grabbing of a climb robot can be improved greatly through the variable-rigidity character of the gripper assembly, and the spring steel sheet type variable-rigidity gripper assembly can provide larger grabbing force, be suitable for more complex working environments and have a wider application range.

The invention discloses a method for upgrading equipment software, which comprises the following steps: obtaining a software upgrade package when a software upgrade instruction is received; storing the updated contents in the software upgrading package into a preset database; according to the software upgrade package, a jump condition and a jump link are inserted into the device software of the data converter to jump to execute the update content according to the jump link when the jump condition is satisfied. The invention also discloses a data converter and a computer-readable storage medium. The invention solves the technical problems of high cost and great difficulty of equipment software research and development, and realizes the effect of reducing the research and development cost and difficulty.

The invention discloses an automatic driving vehicle lane change control method and device. The method includes the following steps: obtaining a lane change demand instruction of a user, wherein the lane change demand instruction is used for indicating that a vehicle needs to be switch from a current lane to a left lane or a right lane; obtaining current first traffic condition data of the vehicleaccording to the lane change demand instruction; according to the current first traffic condition data of the vehicle, determining whether the lane switched according to the lane change demand instruction meets safety conditions of lane switching; if the safety conditions of the lane switching are met, controlling the vehicle to switch the lane according to the lane change demand instruction; andif the safety conditions of the lane switching are not met, controlling the vehicle not to execute the lane change demand instruction at present. According to the invention, human-vehicle interactionjudgment of a user is introduced, the automatic driving vehicle lane change control method and device improve the accuracy and safety of lane change decisions through the user judgment and automaticjudgment and enlarge applicable environment for the lane change decisions of automatic driving.

The invention discloses a positive-pressure and explosionproof power generator. The positive-pressure and explosionproof power generator comprises a power generator body, a positive-pressure purging pipeline, a wiring cabinet, a neutral point cabinet, an excitation system and a positive-pressure purging device and is characterized in that the power generator body comprise a stator, a rotor and anair-air cooler and employs a light box-type structure of an end cover-type bearing, an integral end cover and a steel plate welding engine base, the air-air cooler is placed at the top of the power generator body and employs a pipeline forced ventilation air-air-cooling system, at a steam end of the power generator, a power generator body positive-pressure sealing space is formed by the light box-type structure and the air-air cooler, and at an excitation end of the power generator, an excitation magnetic system positive-pressure sealing space is formed by an excitation machine support and anexcitation machine outer cover. By the structure, the explosionproof performance of the power generator can be effectively improved; and moreover, the positive-pressure and explosionproof power generator is simple to operate and maintain and convenient to install and connect and is good in air tightness, and long-time and safe running of the power generator set in a flammable and combustible environment can be achieved.

The invention provides a brick-shaped filter module and a power supply component, and relates to the technical field of power sources. The brick-shaped filter module comprises a casing and an internalcircuit; the internal circuit comprises a first differential mode filter module, a first common mode filter module, a second common mode filter module and a resonance filter module; the first differential mode filter module used to filter out differential mode interference signals is connected with an output end of a power module; the first common mode filter module and the second common mode filter module are used to reduce common mode noise signals; the resonance filter circuit is used to reduce electromagnetic interference, and is capable of filtering out high-frequency interference effectively. The brick-shaped filter module can improve the quality reliability, simplify the structure compression volume, ensure the same height of the filter module and a brick-shaped power supply, and facilitate the same plane design and production of the equipment, thereby saving the space cost and the material cost, expanding applicable environments of the equipment because of the characters of miniaturization and high power, and having positive significance for miniaturization and densification of national defense industrial equipment and civil equipment.

The invention relates to the field of anchor rods, and in particular to a mechanical linkage anti-pull anchor rod. The mechanical linkage anti-pull anchor rod comprises a printing structure, an inkjet structure, a supporting structure, a rotating structure, a fixing structure, a fastening structure and a sliding structure; in the rotating process of a fixing rod, a grouting opening close to a supporting seat firstly communicates with a first slurry outlet hole close to the supporting seat, cement slurry is injected into the first slurry outlet hole, and the fixing rod continues being rotated, so that a grouting opening located in the middle communicates with a first slurry outlet hole close to a fixing block, cement slurry is injected, and the fixing rod continues being rotated, so that a grouting opening located in the fixing block communicates with a second slurry outlet hole, cement slurry is injected, thus the cement slurry is injected into an anchor hole layer by layer from bottom to top in the process that a limiting rod enters a rock formation to increase the contact area of the anchor rod and the rock formation, after the limiting rod completely slides out of the interior of the fixing block, the contact area of the anchor rod and the rock layer is increased, and the cement slurry is injected into the anchor hole while a fixing column is firmly fixed in the anchor hole.

Provided is a clam-shaped fishing device for a sea rod. According to the clam-shaped fishing device, grass will not be hung on the fishing device, and the bottom of the fishing device will not be hooked. The fishing device is in a clam shape, a 'bomb shackle' and fish bait are hidden in the belly portion of the fishing device, force can be exerted far, and a bait bump will not be dispersed. The fishing bin can be opened automatically for fishing after the fishing device enters water. The fishing bin can be opened by manual control when a person slightly pulls a fishing line. After the fishing bin is opened, two clam-shaped openings face upwards side by side to lure fishes, and a clam-shaped shell is isolated from the surroundings and water bottom. The clam-shaped fishing device has the advantages that more fishes can be fished, and the bait is sufficient; the grass will not be hung on the fishing device, and the bottom of the fishing device will not be hooked; line tapping, bait disengagement and bait lump dispersing in the process of throwing a fishing rod can be avoided; bait losses because of being sunken in pond sludge and scouring can be alleviated; the fishing device can be used in northern complex water regions and southern water network areas. The clam-shaped fishing device is especially suitable for closed type remote continuous bait throwing, and can simulate the effect of continuous bait throwing as a hand rod and directly throw loose bait like sticky rice. The clam-shaped fishing device can be used for continuous bait throwing far and accurately, is beneficial for nesting, facilitates nest complement, and can also be used as a clam-shaped nesting device both for the sea rod and the hand rod. The clam-shaped fishing device can carry two miniature triggers simultaneously and be hidden under water, is sensitive in change selection, capable of preventing the fishes from escaping, stormy-wave resistant, wire tapping resistant, high in sensitivity, and adjustable. Even in the process of bare-handed fishing, the clam-shaped fishing device still can become an unattended, economical and practical by-line income increase tool.

The invention discloses a minitype tightly packaged fiber unit and a production method thereof and relates to a high-strength minitype tightly packaged fiber unit produced by adopting specific equipment and production method and the production method thereof. The minitype tightly packaged fiber unit comprises a fiber, fiber balm and a stainless steel pipe, wherein the fiber is arranged in the stainless steel pipe and the fiber balm is filled in the stainless steel pipe to form the fiber unit. The production method comprises the following steps: (1) arranging a stainless steel coiled material on a steel band resting rack and sending a steel band to a steel pipe shaping table by a steel band hauling machine in a hauling way; (2) cutting the stainless steel band to the width needed by a shaping mould on the steel pipe shaping table, then entering into a steel pipe shaping mould, longitudinally packing into a stainless steel pipe with seams, leading the fiber in and filling the fiber balmin the stainless steel pipe simultaneously; completely welding the longitudinal seams of the stainless steel band longitudinally packaged and shaped by a laser beam welding machine and carrying out drawing by a drawing die for many times; (3) drawing the shaped minitype stainless steel fiber unit and taking in the fiber unit on a wire coil winding a steel pipe to obtain the minitype tightly packaged fiber unit.

The invention discloses a power supply switching circuit. The power supply switching circuit comprises a comparator, a first phase inverter, a second phase inverter, a first buffer, a second buffer, a first PMOS switch tube, a second PMOS switch tube, a third PMOS switch tube and a fourth PMOS switch tube, wherein the comparator comprises a resistor series-connection sampling circuit of an off-chip input power supply, a bias current generation circuit, a comparator body, and a resistor series-connection sampling circuit of a backup power supply. The invention also discloses a signal transmission method for the power supply switching circuit. By adoption of the power supply switching circuit and the signal transmission method, the following technical effects are achieved: 1, an accurate switching threshold value is realized; the switching logic is obtained by determining the high-low level of the off-chip input power supply and the backup power supply; and 2, reliability of the power supply switching is achieved as well; and due to the positive and negative feedback circuits provided by the invention, the shaking and instability of the overall power supply switching circuit caused by shaking of the comparator output due to the fact that the power supply voltage is close to the threshold value point can be avoided.