49results about How to "Good mobility" patented technology

The present disclosure is a full-duplex wireless voice broadcasting apparatus. The apparatus is capable of channel-changing. Full-duplex (two-way) voice communication is achieved by using at least one receiving device and an emitting device. The receiving device has good mobility to be used as an emergent caller to the emitting device. The present disclosure has advantages in interference resistance, energy saving, short-distance emergent calling, and calling for help.

The invention relates to a mortar spraying and smearing machine and a method for painting mortar on a wall surface by using the mortar spraying and smearing machine. The mortar spraying and smearing machine comprises a mortar supply mechanism and a spraying and leveling mechanism, wherein a fixed lower door frame is arranged on a base, sliding upper door frames are respectively connected in the fixed lower door frame in an inserted way, in addition, the top of the fixed lower door frame is connected with a main cross beam, a door frame lifting hoist can tract the sliding upper door frames to ascend, a work table capable of sliding along the fixed lower door frame and the sliding upper door frames is arranged on the fixed lower door frame, a work table lifting hoist can track the work table to ascend, a spray nozzle capable of being used for spraying and coating the mortar and a scraper capable of leveling the mortar are arranged on the work table, and the spray nozzle can leftwards and rightwards move on the work table. During the mortar painting, th spray nozzle moves leftwards and rightwards and simultaneously ascends along with the work table for realizing the reciprocating mortar spraying from the bottom to the top, after the spray nozzle reaches the top, the work table vertically descends, and leveling and calendaring are performed on the surface of the mortar by the scraper. The machine and the method provided by the invention can adapt to the floor height, and can realize automatic mortar spraying and leveling, in addition, operators can always feed materials at the lowest position, and the work intensity is greatly reduced.

Provided is a cross-medium aircraft with a changeable shape like a sailfish. The streamline type appearance of the sailfish is simulated by a machine body (2). A head pointed cone (1) is arranged at the head portion of the machine body (2) to divide water flow. A pair of angle-changeable water wings (3) are installed on the two sides of the front portion of the machine body (2) respectively. The aircraft is controlled to sink or float in water by adjusting the positive tapping angle and the negative tapping angle of the pair of angle-changeable water wings (3). A pair of scale-shaped rectifying covers are installed on the two sides of the middle of the machine body (2) respectively. A pair of self-adaption spiral paddles (4) capable of rotating in an inclined mode are installed on the scale-shaped rectifying covers (5) through a pair of spherical multi-freedom-degree linkage steering gears (6). An X-shaped tail wing (7) is arranged at the middle rear section of the machine body (2). An underwater-propulsion spiral paddle (8) is installed at the tail portion of the machine body (2). By means of the cross-medium aircraft, the design principles and bionics principles of the aircraft and an autonomous underwater vehicle are successfully applied, and the designed cross-medium aircraft has the good running capacity in fluid of two different types including air and water.

The invention discloses an unmanned aerial vehicle based engineering surrounding environmental atmosphere quality monitoring system. The system comprises an unmanned rotorcraft, a power module, an airquality data acquisition module, a GPS (global positioning system) module, an information processor and a network data server. The power module, the air quality data acquisition module, the GPS module and the information processor are arranged on the unmanned rotorcraft. The power module is connected with the air quality data acquisition module, and the air quality data acquisition module and theGPS module are connected with the information processor through a deconcentrator. The information processor is a win10 tablet computer with a mobile phone SIM (subscriber identity module) card installed inside, and data transmission between the information processor and the network data server through GPRS (general packet radio service). The engineering surrounding environmental atmosphere quality monitoring system is high in motility, reusable and capable of quickly completing comprehensive data acquisition and monitoring of engineering surrounding environmental atmosphere quality and uploading the data in real time, and monitoring personnel can observe engineering surrounding environmental atmosphere quality simultaneously at any places, so that engineering cost is reduced to some extent.

The invention relates to a phosphogypsum-doped quick-setting and quick-hardening cement matrix, concrete canvas prepared from the cement matrix and a construction method of the concrete canvas. The raw materials of the cement matrix are composed of the following components in parts by weight: 700 to 800 parts of sulphoaluminate cement and 200 to 300 parts of acid-pickled phosphogypsum. A three-dimensional spacer fabric is filled with the phosphogypsum-doped quick-setting and quick-hardening cement matrix, and an adhesive sealing layer is arranged above the three-dimensional spacer fabric; thethree-dimensional spacer fabric comprises an upper woven fabric layer, a cellosilk layer and a lower woven fabric layer, and the cellosilk layer is composed of cellosilk distributed in a three-dimensional mode. The invention provides the novel cement matrix for the concrete canvas, the strength can be remarkably improved by doping phosphogypsum into the cement matrix system, so that excellent performance is obtained, and a feasible solving method can be provided for solving the current phosphogypsum problem by doping phosphogypsum.

The invention relates to an intelligent visual doorbell capable of inducing and wirelessly switching, which is wirelessly connected, wherein the switching-on / off of the doorbell is controlled by an infrared induction device, the intelligent visual doorbell has a visual function, an interfere-free function and a number pre-storing function and can be used for dialing a user cell phone to communicate with a guest through the pre-stored number, an indoor machine and an outdoor machine of the intelligent visual doorbell are connected through a wireless module so as to increase the mobility of the doorbell, the infrared induction device and a sensor are used for controlling working states of the doorbell, a microcomputer chip processor is used for controlling DTMF (Dual-tone Multi-frequency) dialing to realize a mutual communication function between the cell phone and the doorbell, so as to announce guest visiting information to the user in time; the visual function enables the communication between the user and a visitor to be more convenient, a button operation system of the indoor machine is connected with a number exchanging processor of the microcomputer chip processor and can be used for storing the number, when the number is wrong or the number is reconfigured, the number is input again by the button operation system to be pre-stored, and when a doorbell component is loosened and dropped off or stolen, an anti-theft alarming device sends out alarming sounds.

The invention belongs to the welding field, and particularly relates to a creeping type welding robot system. The system comprises a welding power source; a laser image sensing system, which obtains image information of a welding seam from the site; a cross-shaped slide block control system, which is used for processing the image information obtained by the laser image sensing system, and extracting a deviation signal of the welding seam after processing; a cross-shaped slide block, which is moved after receiving the deviation signal provided by the cross-shaped slide block control system; a creeping mechanism, which controls the movement direction of the welding robot; a man-machine interface, which sets every parameter; a programmable controller. The system controls the movement of the welding robot by the creeping mechanism and the cross-shaped slide block, so that the welding robot is good in maneuverability, good in stability and convenient to operate; an image is obtained by a laser imaging sensing system, so that the welding is accurate; the cooling system is arranged for cooling a work piece which is required to rapidly cool after welding.

The invention relates to a vehicle-mounted non-contact three-dimensional automatic human body measuring system. The system is characterized by comprising an extending square cabin, a single-column non-contact three-dimensional automatic human body measuring instrument and a monitoring system, wherein the extending square cabin comprises a main compartment and an extending compartment; the extending compartment is embedded on the top of the main compartment; the main compartment and the extending compartment are connected with each other by an extending lifting mechanism in a sealed mode; the inside of the main compartment is divided into a measuring area, a dressing area and a working area by partition segments; the extending compartment is arranged on the top of the main compartment in the measuring area; the single-column non-contact three-dimensional automatic human body measuring instrument is arranged in the measuring area of the main compartment, and comprises a base, an uprightcolumn, a U-shaped measuring arm, four measuring cameras and one measuring platform; and the monitoring system is arranged in the working area of the main compartment. The vehicle-mounted non-contactthree-dimensional automatic human body measuring system has a simple and compact structure and high bump resisting performance, can perform efficient and precise human body dimension measuring work anytime and anywhere and can be widely used in three-dimensional automatic human body measuring processes.

Specific antibodies against N-procalcitonin, peptides, genetic constructions and methods for the obtainment of the peptides used in the obtainment of the antibodies. These antibodies can be used for preparing drugs, or diagnostic kits for diseases that develop with systemic inflammatory response or metabolic stress.

The invention relates to a manipulator for rocket recovery. The manipulator is mainly used for the recovery of a first rocket stage. The manipulator structurally comprises a clamp, an arm, a landing platform, a large buffering hydraulic cylinder, a small buffering cylinder, a driving hydraulic cylinder, a telescopic suspension arm beam and a telescopic type supporting leg. The telescopic type suspension arm beam is fixedly connected with the telescopic type supporting leg, the telescopic type suspension arm beam and the driving hydraulic cylinder, the driving hydraulic cylinder and the arm, the arm and the bottom platform are connected through cylindrical pins, and the large buffering hydraulic cylinder and the small buffering cylinder are located on the bottom platform. When a rocket lands, the telescopic type suspension arm beam and the telescopic type supporting leg are turned into an opened state from a retracting state, the arm is driven to opened by the driving hydraulic cylinder, when the rocket lands on the landing platform, the arm is retracted by the moving of the driving hydraulic cylinder, and the landing buffering of the rocket is achieved. The buffering performance ofthe manipulator is excellent, the safety performance is high, the structure is simple, the cost is lower, the manipulator can be recycled, and automatic correcting of the rocket when the rocket landscan be achieved.

The invention discloses a grinding device for coal based activated carbon. The grinding device comprises a base. A supporting frame is fixed to the side surface of the base; an open source single chipmicrocomputer and an internet of thing device are separately mounted on the side surface of the supporting frame; a top plate is connected to the end part of the supporting frame; a guiding mechanismis fixed to the bottom of the top plate; a rack is connected to the end part of the guiding mechanism; a mounting frame is connected to the bottom of the top plate by means of a connecting rod; and afirst rotating mechanism is mounted on the mounting frame. According to the grinding device for coal based activated carbon, a stepping motor drives a transmission mechanism to provide upper and lower grinding power for a grinding head, a rotating device drives a mortar to rotate horizontally so as to perform horizontal grinding operation, the grinding device is high in maneuverability and excellent in grinding effect, and can meet use requirements, the coal based activated carbon bonded on an inner cavity of the mortar is cleaned by a cleaning device, the cleaning is convenient, and the normal operation of the grinding device can be ensured.

The invention discloses a charging device with a mobile charging power source. The charging device is characterized by comprising a mobile platform, a charging system and a man-machine interaction system, the charging system and the man-machine interaction system are respectively arranged on the mobile platform, the man-machine interaction system is used for inputting and processing of charging information, communication transmission and expense settlement, the charging system comprises a power taking and supplying device, a power source device and a charger in electrical connection sequentially, the power taking and supplying device is connected with a power grid and supplies power to the power source device, the power source device is used for converting voltage provided by the power taking and supplying device and outputting a voltage stabilizing power source to the charger, and the charger is connected with an electric vehicle through a selectable charging plug to charge. The charging device with the mobile charging power source has the advantages of simple structure, high mobility and applicability to emergency mobile charging rescue for electric vehicles in large parking lots or sides of highways.

The invention relates to a turnplow allowing mechanical overturn, which comprises a turnplow traction mechanism, a transmission apparatus, and a ploughing mechanism. The turnplow of the invention is characterized in that an overturn device, consisting of an overturn central shaft, an overturn positioning arm, and an overturn stand, is arranged between a traction seat and a support. Upon the traction seat is arranged a hand-operated overturn control apparatus consisting of a control rod, a fixed shaft pin, a control rod connection crank, a left rotary suspension arm, a right rotary suspension arm, a compression spring, a sphere fixed block, a thread positioning pin shaft, a nut, a regulating block, and a regulating block positioning board. Upon the support are correspondingly arranged an upper small plough shovel, an upper turnplow sheet, a lower small plough shovel and a lower turnplow sheet having the same bending direction. The turnplow has the advantages of high adaptability and flexibility and being easy in operation and reliable in performance and the like.

The present invention provides electroluminescent materials that emit very bright light with little energy consumption, little loss of energy converted into heat, etc., and suffers from little deterioration due to long-term use, in particular, inorganic electroluminescent materials that emit blue to green light having a wavelength shorter than yellow. Specifically, the present invention relates to the following three types of electroluminescent material: (1) An electroluminescent material including an oxide having a perovskite-type crystal structure represented by General Formula RMO3, wherein R is at least one rare-earth element, and M is at least one member selected from the group consisting of Al, Mn, and Cr; (2) an electroluminescent material including an oxide having a perovskite-type crystal structure represented by General Formula R2CuO4, wherein R is at least one rare-earth element; and (3) an electroluminescent material including an oxide having a perovskite-type crystal structure represented by General Formula RZ2Cu3O6, wherein R is at least one rare-earth element, and Z is at least one alkali-earth metal.

The invention discloses a drying oven used for ceramic product processing. The drying oven used for ceramic product processing comprises a box, a fan, a moving device, a rotary heating device and a pushing-out device. A first motor in the moving device is started to work, an output shaft on the front end face of the first motor starts to rotate and drives a coupling to enable a driving gear to move, a driven gear engaged with the right side of the driving gear also rotates and drives a spindle to rotate, the spindle drives directional wheels to rotate, power generated by the directional wheelsdrives universal wheels at the front ends of the directional wheels to rotate synchronously, users can move the universal wheels leftwards or rightwards by controlling the box by hand to exert force,then steering is achieved, and electric movement is completed. The box cannot be connected with a power line in the moving process, and a storage battery is arranged at the left end of the bottom ofan oven body to supply power demanded, so that the drying oven is convenient to use, good in mobility and capable of being electrically moved, and the problems of poor mobility and inconvenient usingof large equipment are solved.

The invention discloses a vector control system and method for a ship based on water-jet propellers. The vector control system comprises dual power propulsion integrated units and a vector control unit, wherein the dual power propulsion integrated units are used for performing servo control on dual water-jet propellers and realizing control for a steering gear position and a forward / backward gearposition of the ship body, the dual power propulsion integrated units are further used for controlling throttle on-off of dual diesel engines and realizing control for the on-off and sailing speed ofthe ship body; and the vector control unit comprises combined inertial navigation equipment and a vector controller, the combined inertial navigation equipment is used for collecting and monitoring the attitude and position of the ship body in real time, and the vector controller is used for estimating initial power configuration parameters according to a load distribution condition of the ship body and a propulsion characteristic curve and performing closed-loop automatic adjustment on the attitude and position of the ship body in real time according to the combined inertial data so as to realize flexible actions including specified-direction translation, in-situ rotation and fixed-point stabilization of the ship body.

The invention discloses an instrument and apparatus transporting device. The instrument and apparatus transporting device comprises a base; a first vertical rod is fixedly connected to the left side of the top of the base; a second vertical rod is fixedly connected to the right side of the top of the base; storage boxes are arranged on one opposite surfaces of the first vertical rod and the secondvertical rod; clamping frames are fixedly connected to the two sides of the storage boxes; and rotating rods are arranged in cavities of the clamping frames. According to the instrument and apparatustransporting device, as the clamping frames, a clamping groove, a clamping pin, a sliding rod, a fixing ring, a movable sleeve, a steel wire rope, a rope disc, a rotating rod, a rotating handle and aspring, the device can realize a function of adjusting the height of a goods shelf; and problems that the structure of an existing transporting device on the market is simpler, the existing transporting device on the market does not possess a function of adjusting the height of the goods shelf, a phenomenon that instruments and apparatuses with different heights are hard to put due to smaller height between the goods shelves is often caused during transporting the instruments and apparatuses with different heights, the working time of working personnel is wasted, and the working efficiency isreduced are solved.

The invention discloses a fire rescue special type hexapod robot. The fire rescue special type hexapod robot comprises a hexapod robot body, a hexapod robot foot part, a fireproof protection cover, aroad obstacle-clearing device, an oxygen bottle, a breathing mask, a life detector, a camera module, a voice module, a positioning module, a controller and a power module. Compared with a crawler typefire rescue robot, the fire rescue special type hexapod robot has the advantages of light weight and low cost, and has a non-structured terrain crossing capability which is not possessed by a wheeledfire rescue robot, and movement flexibility is balanced. The fire rescue robot can search for trapped personnel at a fire scene, clear road obstacles and provide short-term emergency supplies, provides rescue channels for fire rescue personnel to implement rescue, and strives for valuable rescue time.

The invention provides a mobile detection laboratory capable of being put into use quickly, which can be arranged at each fixed place according to requirements or can be used for carrying out test operation during movement, so that the mobile detection laboratory can be used quickly, and the operation efficiency is improved. The cab is fixedly connected with the front end of the vehicle base; a square cabin is fixedly arranged on the upper surface of the vehicle base; a side door is arranged on one side plate of the square cabin; a buffer room and an air supply air conditioning equipment roomare arranged in the square cabin corresponding to the side door; an air conditioner outdoor unit room is arranged in the square cabin at the front end of the air supply air conditioning equipment room, an experiment room is arranged in the square cabin at the rear end of the buffer room, a sliding door is arranged between the buffer room and the experiment room for isolation, and an exhaust purification equipment room with the same air as the experiment room is arranged at the corner of the experiment room at the rear part of the square cabin; a laboratory exhaust system is arranged in the exhaust purification equipment room; a transfer window is arranged between the buffer room and the experiment room; and a biosafety cabinet, a sterilizer, an incubator, a refrigerator and a vehicle-mounted hand washing device are arranged in the experiment room.

A protective suit (100), especially for an operator (1) in a cooling chamber that is cooled using liquid nitrogen or vapor of the liquid nitrogen comprises a body suit (10) which has a thermally insulating, gas-tight cover material (20) and is designed to accommodate the operator (1), and a heating device (30) which is connected to the body suit (10) and is designed to heat the interior of the protective suit (100). A glove (70) which is made of a thermally insulating glove material (71) and includes a glove heater (77) is also described.

The invention discloses a vehicle load measuring method based on surface characteristics. The method comprises the following steps: S1, collecting a vehicle scene image; S2, extracting target vehicleproduct model information and a target vehicle image from the vehicle scene image; S3, correcting the target vehicle image to generate a target vehicle two-dimensional image; and S4, calculating the load of the target vehicle based on vertical displacement of the wheels in the target vehicle two-dimensional image. A machine vision technology can be better applied to vehicle load weight measurement, defects that a vehicle body structure is damaged, efficiency is low and so on in a traditional method are overcome, and the defects that an image processing method needs a special calibration object, photographing equipment is tedious, reproducibility is poor and so on are overcome too.

The invention discloses a method for correcting an abnormal value of a matrix based on a Markov transfer matrix, and belongs to the technical field of data mining and the field of pattern recognition.The method comprises steps of based on a three-connection box abnormal value identification method, carrying out abnormal value judgment on an obtained identification probability matrix, and an abnormal identification probability, namely an abnormal value, is obtained; Customizing a Markov state transition matrix of the identification probability interval; And according to the abnormal value andthe Markov transfer matrix, correcting the abnormal value by using a prior probability and naive Bayes to obtain a corrected recognition probability. The method is used for correcting the abnormal recognition probability.

The invention relates to a multifunctional rail detection vehicle. The multifunctional rail detection vehicle comprises a wheel axle device, a framework, an axle box spring device, a braking device, adriving device, an obstacle removal cleaning device, a vehicle body and in-vehicle detection control equipment. The wheel axle device is used for bearing the weight of the rail vehicle to enable therail vehicle to move along a steel rail. The upper portion of the framework is connected with the vehicle body through a traction pin. The lower portion of the framework is connected with the wheel axle device through the axle box spring device. The braking device and the driving device are mounted on a cross beam of the framework through bolts. The obstacle removal cleaning device is arranged onan obstacle removal cleaning seat of the framework through a bolt. All the detection control equipment is arranged in the vehicle body. The rail detection vehicle has a plurality of functions, can beused for detecting the rail and surrounding environment so as to be positioned in real time, transmit detected information to a monitoring control center in a wireless mode and analyze and evaluate the geometrical state and the quality of the rail, and can remove obstacles and dirt on a line of the rail. Compared with an existing detection vehicle, the multifunctional rail detection vehicle is characterized in that the brake device is innovatively added to enable in-time braking when an emergency happens or during returning after detection is completed, so that the controllability is greatly improved.

The invention discloses an adhesive for producing rubber shoes and a preparation method of the adhesive, which relate to the technical field of the preparation of adhesives. The adhesive is prepared from the following raw materials in parts by weight: 100 parts of national standard Number-1 natural rubber, 2.5 to 3 parts of sulfur, 1.5 to 2.5 parts of accelerant M, 0.5 to 1.5 parts of accelerant DM, 0.5 to 1.5 parts of accelerant D, 5 to 9 parts of zinc oxide or zinc carbonate, 0.5 to 1.5 parts of stearic acid, 1.5 to 2.5 parts of phenolic resin, 1.5 to 2.5 parts of rosin, 2.5 to 3.5 parts of terpene resin, 3 to 10 parts of polyisocyanate, and 350 to 450 parts of number-120 solvent oil. The adhesive is high in adhesion force, and can be connected with rubber products with any rubber content or made of different materials; the erosion and corrosion time and performance can be improved or prolonged; the temperature range adaptability is high; the bending resistance and impact resistance are good; the viscosity is adjustable, and the qualification rate of products is increased; and the anti-oxidation capacity is high, and the product is convenient to store.

The invention relates to a question answering community label recommendation method based on a convolution neural network, specifically, it involves the data preprocessing of the question data set inthe question answering community, and then the matrix is established by word embedding, The Mikilovo method is used to change the matrix of training set into three-dimensional matrix, then the convolution neural network model is used to train the three-dimensional matrix, and finally the new questions in the question-answering community are tagged by the trained model, which is a tagging recommendation method based on the convolution neural network in question-answering community. It has the following outstanding characteristics and advantages: First, the convolution layer can be introduced toextract features accurately and match them more precisely; Secondly, the ability of convolution neural network to deal with large images makes it possible to deal with large data sets. Thirdly, convolution neural network has good migration in image processing, which makes it have good migration in label recommendation.

The invention relates to an automatic production device for organic fertilizers. The automatic production device comprises a box body, a fermentation chamber, a throwing and uniform mixing unit, a material discharging unit, a gas exchange unit and an odor removal unit, wherein the fermentation chamber comprises a cover body which is arranged in the middle of the box body and can be opened and closed, a push plate located below the cover body, box body side walls and a box body bottom surface and is used for accommodating the organic fertilizers; the throwing and uniform mixing unit comprises a throwing device, the throwing device can extend into the fermentation chamber to throw the organic fertilizers when the cover body is opened, after throwing is completed, the throwing device retracts to the position above the cover body, and the cover body is closed; the material discharging unit comprises a discharge port capable of being opened and closed and a pushing plate used for pushing materials; the gas exchange unit is used for exchanging gas in the fermentation chamber; the odor removal unit is used for absorbing odor in the fermentation chamber. Compared with the prior art, the automatic production device is novel and practical in structure and convenient to mount, maintain, control and operate and can promote organic fertilizer production to develop from a traditional fermenting vat production mode to an industrial automatic production mode.

The invention relates to the technical field of medical instruments, in particular to a coronary artery cutting balloon and a catheter thereof. The coronary artery cutting balloon comprises a balloonbody 1. A guide wire is fixedly connected to one end of the balloon body; a catheter groove is formed in the end, away from the guide wire, of the balloon body; a catheter is fixedly connected to an inner cavity of the catheter groove; an expansion inflation tube is fixedly connected to the outer ring of the catheter; an inner catheter is connected to the middle of the inner cavity of the balloonbody in a penetrating mode; a blade groove is formed in an inner cavity of the balloon body; a cutting blade is movably connected to an inner cavity of the blade groove; a medicine storage groove is formed in the inner cavity of the balloon body; a leakage-proof piece is fixedly connected to the inner wall of the medicine storage groove; and medicine is contained in the inner cavity of the medicine storage groove. According to the coronary artery cutting balloon and the catheter thereof, medicine can be prevented from falling off in the process that the cutting balloon is guided into a human body, the cutting balloon has relatively high size stability and biocompatibility, mobility in blood is good, and blood agglutination is not likely to be caused.

The invention discloses a high-efficiency sand sieving vehicle. The high-efficiency sand sieving vehicle comprises a vehicle body and a sieve plate. Traveling caterpillar tracks are arranged at the bottom of the vehicle body. The left side of the vehicle body is provided with a left opening. A lifting barrel is hinged to the portion, located at the left opening, of the inner wall of the vehicle body. The sieve plate is arranged in the vehicle body. A sliding groove frame is fixedly arranged at the upper end of the right side of the sieve plate. A moving column is nested in the sliding groove frame. The moving column is rotatably connected with a connecting rod. The top end of the connecting rod is rotatably connected with an eccentric wheel. The eccentric wheel is connected with a second driving motor through a driving shaft. A guide plate is arranged on the vehicle body and located below the sieve plate. A right opening is formed in the position, located on the right side of the guideplate, of the vehicle body. The high-efficiency sand sieving vehicle conveniently conveys coarse sand on the ground into the vehicle body for sieving through the lifting barrel and a screw blade roll. The high-efficiency sand sieving vehicle is small in occupied area and good in mobility, and the use convenience is improved. The high-efficiency sand sieving vehicle is provided with the sieve plate and a crank-link mechanism. The crank-link mechanism drives the sieve plate to move up and down. The sieving efficiency is improved. Sieve pores are protected against blockage.

The invention relates to an online performance and durability monitoring system for a pulsator of a milking machine. The online performance and durability monitoring system is especially suitable for online performance and durability monitoring of the pulsator of the milking machine under experimental and production conditions. During monitoring, analog quantity signals outputted by each high-frequency-response vacuum sensor connected into a pulsation pipeline are acquired in real time by an AD (analog-to-digital) acquisition board, and monitoring of 15 vacuum pulsation signals can be realized maximally at the same time by the system. A computer reads digital quantity signals converted by the AD acquisition board through a USB (universal serial bus) signal amplification extension cord and performs analysis, calculation and storage to automatically complete various tests of the pulsator of the milking machine. A transmission distance of the USB signal amplification extension cord is longer than 10m, so that testing personnel can avoid a noisy operating environment of the milking machine as far as possible. Due to portability of a test chamber, the requirement on mobile testing can be met.

The invention relates to the field of anti-theft technology, in particular to an anti-theft method by making use of the features of a network isolation transformer in network apparatus. The anti-theft method is realized by making use of the characteristics of resistance network and inductive choke of the internet isolation transformer. An anti-theft device designed by utilizing the method can solve the anti-theft problem of most network equipment. If being used for equipment such as a network switch or a hub and the like, the method has wider market prospect.