225results about How to "Precise distance control" patented technology

The invention relates a method for controlling a radio frequency communication distance. The method comprises the following steps of: storing correspondence between a communication distance and radio frequency characteristic parameters in radio frequency communication equipment in advance, and setting a trigger threshold value of echo field intensity variation, wherein the radio frequency characteristic parameters comprise an echo field intensity variation value and a radio frequency signal field intensity value; in the process of communication between the radio frequency communication equipment and a radio frequency communication terminal, detecting the current echo field intensity variation value continuously by the radio frequency communication equipment and judging that the absolute value of the current echo field intensity variation value reaches the trigger threshold value of echo field intensity variation; if so, performing the next step; otherwise, repeating the step; acquiring the current radio frequency characteristic parameters by the radio frequency communication equipment, determining the current communication distance according to the correspondence, and then judging whether the current communication distance is in a preset card swiping range; and if so, allowing the card swiping transaction and otherwise, not allowing the card swiping transaction. The method can effectively reduce the factor influence of the radio frequency communication terminal on the distance control and has high stability; and the distance can be accurately controlled.

The invention relates to a pole-climbing robot with grippers controlled by cams, pertaining to the field of automated machinery production. The pole-climbing robot is composed of an elevating mechanism, a clamping mechanism, an electrical control part, a bearing and a clutch. The elevating mechanism is composed of a third shaft, a gear screw nut, a lead screw, an upper half shaft and a lower half shaft and used for controlling rising action of the robot.The clamping mechanism is composed of an upper gripper and a lower gripper, identical to each other. Each gripper comprises a cam, a cam push rod guider, a mechanical tong and a gripper connecting rod such that each gripper can be clamped or loosened. The pole-climbing robot with grippers controlled by cams has following beneficial effects: the pole-climbing robot can climb to a rod placed at any position besides a vertical position and moves forwards or backwards at any time and stops at the rod at any moment.

The invention discloses a manufacturing method of a field emission ion neutralizer chip based on an SOI process. The manufacturing method comprises the following steps: (1) preparing an SOI substratewith a polished surface; (2) removing the top silicon and the silicon dioxide insulating layer in the target area by using photoetching and etching processes, and exposing the bottom silicon; (3) obtaining an array type photoresist pattern on the underlying silicon, and depositing a buffer layer and a catalyst layer to form a buffer layer-catalyst layer array; (4) forming a carbon nanotube array to obtain a cathode part; (5) preparing an array type through hole structure by using a silicon wafer as a grid substrate; (6) depositing a metal film on the through hole structure to obtain an anode part; and (7) bonding the cathode part and the anode part to obtain the field emission ion neutralizer chip. By improving the design and the like of the whole flow process of the preparation method, the obtained device can effectively overcome the field shielding effect and the heat effect, and has the advantages of being good in emission efficiency, low in power consumption and long in service life.

The invention discloses a one-piece ceramic capacitance pressure transducer and a manufacture method, and belongs to pressure transducer technology field. The problem of poor reliability caused by poor sealing between thick sheets and thin sheets and low bonding intensity of existing ceramic capacitance pressure transducers is solved. The invention is characterized in that the one-piece ceramic capacitance pressure transducer comprises an elastic thin substrate, a thick substrate, and a gap spacing block between the thin and the thick substrate; the elastic thin substrate, the thick substrate and the gap spacing block are made by laminating alumina or zirconia raw tiles through tape casting; the elastic thin substrate, the gap spacing block and the thick substrate are made as a whole after sintering. The one-piece ceramic capacitance pressure transducer has the advantages of ensuring intensity and sealing between the ceramic substrates, and raising product reliability, and can be mainly used for ceramic capacitance pressure transducers.

The invention discloses a positioning device and method for detecting the hydrophobicity of a composite insulator based on a drone, wherein the positioning device for detecting the hydrophobicity of a composite insulator based on a drone includes a multi-rotor drone body, which is arranged on the multi-rotor drone body The water spray insulating rod at the bottom, the water spray head arranged at the front end of the water spray insulating rod, the positioning module arranged on the body of the multi-rotor UAV, the image acquisition module arranged on the body of the multi-rotor UAV, and the And the image monitoring module controlled by the operator; the positioning module includes a first positioning laser emitter and two second positioning laser emitters. The laser beams emitted by the first positioning laser transmitter and the two second positioning laser transmitters form a spot at the intersection position, so that the image monitoring module can be used to clearly observe the position of the spot on the ground, and combine it with the detected spot by judging The insulator coincides to realize precise control of the distance between the sprinkler head and the composite insulator.

The invention discloses an intelligent vehicle washing system and a vehicle washing method, and relates to the field of vehicles. The intelligent vehicle washing system is used for cleaning the vehicles and comprises an intelligent terminal, a control unit and an execution unit, wherein the intelligent terminal is used for inputting instructions by users, the control unit is used for receiving the input instructions from the intelligent terminal and sending out execution instructions according to the input instructions, and the execution unit is used for cleaning the vehicles according to the received execution instructions; and the execution unit comprises a vehicle contour scanning device and a cleaning device, the vehicle contour scanning device is used for scanning the outer contours of the vehicles, a spray head, the water spraying distance and the rolling distance of a rolling cylinder are adjusted through the execution unit, and the intelligent cleaning of the vehicles can be achieved. The invention further provides the corresponding vehicle washing method. According to the intelligent vehicle washing system and the vehicle washing method, the outer contours of the vehicles are scanned by the vehicle contour scanning device, so that the spray head of the cleaning device and the relative distance between the rolling cylinder and the vehicles are controlled accurately; and the intelligent vehicle washing system and the vehicle washing method are beneficial for improving the cleaning effects, and the cleaning quality is greatly improved accordingly.

The invention discloses an automatic energy dispersive X-ray fluorescence analysis test platform. The automatic energy dispersive X-ray fluorescence analysis test platform comprises a sample chamber, a stepping motor and an electric cylinder. The sample chamber and a seal plate form a closed chamber. The stepping motor is fixed to a tray. The tray is connected to a bracket. The bracket is connected to the electric cylinder. A rotation shaft of the stepping motor passes through the seal plate and enters into the closed chamber. The rotation shaft of the stepping motor is provided with a sample support. The sample chamber is provided with an X-ray pipe, a camera and a detector. The closed chamber is communicated with a vacuum pump. The camera is connected to a computer. The automatic energy dispersive X-ray fluorescence analysis test platform reduces measure errors, reduces detector-caused pollution, improves a light element detection capability and improves detection efficiency.

The invention relates to a laser cleaning device, in particular to a large-format laser cleaning device, and belongs to the technical field of laser cleaning. A moving device is mounted; through the direction change of wheel brackets of the moving device, wheels can be placed on the ground or withdrawn, so that the whole laser cleaning device is convenient to move and fix; a controller respectively controls extension of extension rods of four electric cylinders to drive four laser cleaning machines to move up and down to adjust the distance from each laser cleaning machine to the surfaces of objects to be cleaned in real time, so that the objects can be always maintained in an optimal cleaning distance state for cleaning, uneven surfaces can be maintained in a more ideal cleaning effect, and the laser cleaning device can be suitable for metal workpieces with uneven surfaces; and the widths of optical fibers output by one laser cleaning machine are just in butt joint with the widths ofoptical fibers output by the adjacent laser cleaning machines, so that the four laser cleaning machines arranged side by side can be suitable for large-area cleaning of the uneven surfaces of the objects to be cleaned.

The invention discloses a wafer level packaging method of a light emitting diode with an adjustable lens focus. The method comprises the following steps: in a first step, etching a light emitting diode lens mould microchannel array and a spacing control mould microchannel array surrounding a light emitting diode lens mould groove on a silicon wafer, and disposing proper amount of thermal outgassing agents in a light emitting diode lens mould microchannel; in a second step, carrying out anode bonding of the silicon wafer and a borosilicate glass water in vacuum to form a sealed cavity; in a third step, carrying out heating and heat preservation on a bonding wafer in the air, forming a spherical glass micro-cavity and a spacing control projection ring, carrying out cooling and annealing, and removing silicon to obtain a light emitting diode packaging lens array; in a fourth step, pasting a light emitting diode chip on a substrate; in a fifth step, bonding a wafer level glass micro-cavity and the substrate; in a sixth step, filling up glue into a gap between a light emitting diode chip and the wafer level glass micro-cavity through a spacing control ring gap, and carrying out solidification. The method can be carried out on a wafer level, and the method has the advantages of simplicity and low cost.

The invention relates the re-spooling machine batching apparatus, comprising the guide rail, the first vertical-boom and the second vertical-boom on guide rail, the first rotary table on the first vertical-boom, the second rotary table and sliding shaft on the second vertical-boom, and the barrel on sliding shaft. The part of barrel is between the first rotary table and the second rotary table when the barrel is under convolution status. The one end of sliding shaft is connected with the first rotary table; the other end of sliding shaft is connected with trail sleeve, the motor is installed on the second vertical-boom, the feed screw nut is connected with the output shaft of motor, the screw-thread in feed screw nut is matched with the guide screw, and the guide screw is connected with trail sleeve. The motor controls the movement distance of sliding shaft, and control the distance between the first rotary table and the second rotary table.

The invention discloses a method for lifting and releasing a descending mechanism through an intelligent winch device. The method comprises the following steps that an information acquisition elementis arranged on an output shaft of a winding drum, the movement speed and position information of a load vehicle which is lifted through the winding drum are acquired; a caliper disc brake is arrangedon the output shaft of the winding drum; a plurality of hydraulic oil ports of the caliper disc brake are connected with a hydraulic system provided with an electromagnetic overflow valve, a proportional pressure reducing valve and an electromagnetic reversing valve correspondingly; the hydraulic system, the information acquisition element and the control system are connected correspondingly, thecontrol system is enabled to control one or more of the electromagnetic overflow valve, the proportional pressure reducing valve and the electromagnetic reversing valve to act according to the movement speed and the position of the load vehicle, the oil supply pressure of the hydraulic system to the caliper disc brake is adjusted so as to adjust the brake torque of the caliper disc brake to the load vehicle. According to the method, the caliper disc brake directly brakes the output shaft of the winding drum, the brake torque is large and adjustable, so that the caliper disc brake is suitable for braking the large load, and the speed reducing and braking effects on the load vehicle are improved.

A spreading apparatus for spreading material onto a target area is disclosed. The spreading apparatus includes a container for the material, a discharge unit which discharges the material, a deflector door disposed on a discharge port of the discharge unit, a positioning device which positions the deflector door and a controller configured to control the deflector door so that the deflector door is positioned between a first closed position and a second open position. The material is substantially prevented from exiting through the discharge port when the deflector door is in the first position. The deflector door may further be positioned at a position between the first closed position and second open position to control a distance of the material discharged from the discharge port.

The invention relates to a macro-photographing bracket which comprises a bearing frame, a slide block, a gear rack device and a support pillar, wherein the bearing frame comprises two parallel and opposite side frames; a bearing seat is arranged between the adjacent end parts of the two side frames; the two ends of the slide block are respectively in slide connection with the inner side surfaces of the two side frames; the slide block comprises a bearing part; the gear rack device comprises a gear and a rack; the central shaft of the gear is fixed on one side frame of the bearing frame and can rotate; the rack is meshed with the gear, and the expansion direction of the rack is respectively perpendicular to the two adjacent side frames of the slide block; the support pillar is matched with the shaft hole of a side frame which is adjacent to or opposite to the side frame of the gear rack device; the expansion direction of the support pillar is consistent to the expansion direction of the rack; and the support pillar can make a motion along the expansion direction of the support pillar corresponding to the bearing frame.

The invention discloses a gas-liquid-solid three-phase abrasive flow plane polishing system based on a cavitation effect, comprising a two-degree-of-freedom moving device, a gas-liquid-solid mixing device, a rotary driving device, a cavitation polishing tool, a workpiece clamping device, a workpiece processing pool, an abrasive flow circulation device, a high-pressure gas injection device and a console, wherein the cavitation polishing tool comprises an outer constraint block and an inner constraint block which jointly form an annular narrow-slit flow channel with a large inlet and a small outlet; and the annular narrow-slit flow channel communicates with a through hole in a rotary spindle through an internal flow channel in an outer constraint body. The gas-liquid-solid three-phase abrasive flow plane polishing system based on a cavitation effect uses the principle of structural cavitation to set the annular narrow-slit flow channel on a cavitation polishing tool, and realizes the structural cavitation of the liquid by using a flow channel design with a larger inlet and a smaller outlet, and realizes the high-efficient material removal rate of the workpiece surface; and the liquidsecondary cavitation is realized by the design of a round corner on the cavitation polishing tool, so that the efficiency of fluid polishing is improved.

The invention discloses a spraying mechanical arm, which mainly solves the problems of low efficiency and poor quality of the traditional spraying method. The spraying mechanical arm consists of a base, upright posts, a base rotating shaft, a slide seat, an arm rotating shaft, an arm, a nozzle rotating shaft, a nozzle, a range finder, a control system and an upright post seat; the lower end of the base rotating shaft is connected to the base through a motor; the upright post seat is fixed at the upper end of the base rotating shaft; two upright posts are fixed on the upright post seat; the slide seat is arranged on the upright posts in a sliding way; the arm rotating shaft is fixed on the front side of the slide seat; the arm is connected to the slide seat through the arm rotating shaft; the nozzle rotating shaft is fixed at the front end of the arm; the nozzle is connected to the arm through a nozzle rotating shaft; the range finder is fixed on one side of the nozzle; and one side of the base is connected with a control system. The control system controls the accurate movement or rotation of the slide seat or the rotating shafts by controlling the motor for the slide seat and the rotating shafts, and the nozzle reaches an appointed position, so that the aim of accurately controlling the distance of the nozzle and the spraying thickness in the spraying process can be fulfilled, raw material waste can be reduced and work efficiency can be improved.

The invention discloses a suspended bed with the function of water body ecological restoration, which belongs to the technical field of water body ecological restoration treatment. The suspended bed with water body ecological restoration function includes a light intensity adjustment system, a light intensity detector, a buoyancy ball, a lifting or lowering pull rope for the suspended bed, submerged plants and a planting bed. The system can use the light detector to monitor the light intensity around the submerged plants in time, and by comparing the light intensity required by the submerged plants set in the light adjustment system, the system can adjust the distance between the planting bed and the water surface, so that the light intensity Meet the growth needs of submerged plants. The invention has a simple structure, is easy to plant and harvest plants, and has low maintenance costs; it can precisely control the distance between the bed body and the water surface according to the light intensity in the water, and can meet the light conditions required for the growth and reproduction of submerged plants; by suspending the bed body in the water, It can be used in deep water, hard riverbed and low transparency water bodies, and has a wide range of applications.

The invention provides a seeding machine for corn seed breeding, and belongs to the technical field of the agricultural machinery. The seeding machine for core seed breeding comprises a car body, a first ditching mechanism, a fertilization mechanism, a first earthing mechanism, a second ditching mechanism, a seeding mechanism, a second earthing mechanism and a watering mechanism; the first ditching mechanism, the fertilization mechanism, the first earthing mechanism, the second ditching mechanism, the seeding mechanism, the second earthing mechanism and the watering mechanism are orderly arranged on the car body; the second earthing mechanism and the first earthing mechanism have the same structure; the second ditching mechanism is arranged on a side of the first earthing mechanism. By arranging the first ditching mechanism, the fertilization mechanism, the first earthing mechanism, the second ditching mechanism, the seeding mechanism, the second earthing mechanism and the watering mechanism, the automatic corn seeding is realized, the hand labor is reduced, the seeds and the fertilizer can be seeded at the same time, or the dual-row alternative seeding can be realized, the distance between the seed and the fertilizer can be precisely controlled, and the automatic irrigation is realized.

The invention discloses a workpiece clamping device of a special boring machine for an axle hole of a machine body. The device comprises a machine body and hydraulic jack mechanisms which are arranged on two sides of a machine body processing region for clamping and fixing a to-be-processed workpiece, wherein each hydraulic jack mechanism comprises a jack sliding guide rail, a jack seat which is arranged on the jack guide rail, a jack driving mechanism for driving the jack seat to slide along the jack sliding guide rail and a hydraulic jack which is arranged on the jack seat and can extent. The hydraulic jack provided by the invention can be used for adjusting the distance from the center line of the jack to the center line of a main shaft of a boring cutter by transverse movement, so that the device is suitable for processing requests of different machine bodies, and the processing range of the machine body is expanded; meanwhile, a high-precision raster displacement sensor is additionally arranged for measuring the transverse moving distance of the jack, so that the distance from the center line of the jack to the center line of the main shaft of the boring cutter is accurately controlled.

The invention relates to a spraying robot, which comprises a base, stand columns, a base rotating shaft, a slide seat, an arm rotating shaft, an arm, a nozzle rotating shaft, a nozzle, a diastimeter, a control system and a stand column seat, wherein a base motor is arranged on the base, and the base motor is connected with the base rotating shaft; the stand column seat is fixed on the base rotating shaft, and two stand columns are fixed on the stand column seat; the two stand columns are provided with the slide seat which can slide along the stand columns, the slide seat is provided with the arm rotating shaft, and the arm is connected to the slide seat by the arm rotating shaft; the nozzle shaft is fixed on the front end of the arm, the nozzle is connected to the arm by the nozzle rotating shaft, and the diastimeter is fixed at one side of the nozzle; the slide seat, the arm and the nozzle are respectively connected with respective corresponding motors, and the diastimeter and the motors are respectively connected with the control system. The diastimeter transmits the measured distance value to the control system, and then the control system controls the accurate moving and rotation of the slide seat or rotating shafts by controlling the slide seat and the motors of the rotating shafts so as to accurately control the distance of the nozzle and the coating thickness in the process of spraying.

The invention discloses a device and a method for collecting electrolyte in an AGM partition board. The device comprises a detection vehicle, wherein an electronic scale is arranged in the detection vehicle, and an electrolyte tank is placed on the electronic scale; the detection vehicle is fixedly connected with a trapezoid block, the trapezoid block is fixedly connected with an extrusion tank, an extrusion block is arranged above the extrusion tank and is fixedly connected with a support column, the support column is fixedly connected with a support plate, a rod hole is formed in the centerof the support plate, sliding holes are formed in two ends of the support plate, are connected with a sliding rod in a sleeving manner and are in sliding fit with the sliding rod, and the sliding rodis vertically connected to the trapezoid block through a bolt; and a hydraulic cylinder is fixedly connected to the top of the detection vehicle, and a piston rod of the hydraulic cylinder penetratesthrough the rod hole and is fixedly connected with the extrusion block. The device is simple in structure; and by obliquely placing the extrusion tank, the electrolyte in the AGM partition board can be very easily and completely extruded out by virtue of the extrusion block, can be easily collected and can be used for pushing the hydraulic cylinder, so that the labor cost is lowered, and the timeand the labor are saved.

The invention discloses a speed sensor testing device and a measurement method. The invention comprises a testing mechanism having a gear and a speed sensor, a power mechanism for driving a gear, and an electric system for measuring speed sensor output and a gear rotation signal. The testing mechanism comprises a gear positioning pin, and a measurement dial indicator. The measurement method comprises steps of calculating and obtaining the angle of a rotation signal waveform descending rim midpoint deviated from the gear top center line of the gear through measuring the rotation distance of the gear in a range of a gap between a tooth and a gear positioning pin by a dial indicator and combining with the electric level hopping of the gear rotation signal in an oscilloscope, utilizing a speed sensor to output the comparison between a waveform zero position and the gear rotation signal waveform descending rim midpoint point, calculating to obtain the angle of the waveform zero position outputted by the descending rim midpoint of the gear rotation signal waveform so as to obtain the deviation angle between the zero position of the waveform outputted by the sensor and the gear top surface center line on the gear. The invention improves the comprehensiveness of the speed sensor.

The invention discloses an automatic road-bridge telescopic seam long profile and large-size circular steel stud welding system. The system comprises welding mechanical arm mechanisms, opening/closing ceramic ring mechanisms, a guide rail mechanism and ground rail roller frames. The welding mechanical arm mechanisms are arranged on one sides of the ground rail roller frames. The opening/closing ceramic ring mechanisms are arranged on the corresponding positions of the other sides of the ground rail roller frames. The welding mechanical arm mechanisms are further provided with automatic feeding and jacking mechanisms. The ground rail roller frames are provided with long profiles to be welded. The long profiles are positioned precisely through a plurality of profile positioning devices evenly distributed on the ground rail roller frames. The guide rail mechanism is arranged between the ground rail roller frames. The guide rail mechanism comprises two linear guide rails arranged in parallel. The two linear guide rails are provided with a carriage. The carriage conducts reciprocating motion on the linear guide rails on the dependence of a carriage drive device arranged on the carriage. The automatic road-bridge telescopic seam long profile and large-size circular steel stud welding system has the advantages of being reasonable in structure, high in positioning accuracy, even in welding seam, precise to control and the like.