718results about How to "Prevent the situation" patented technology

The invention discloses a detergent for a washing machine and an automatic disinfectant adding device. The automatic adding device comprises a washing machine water inlet valve, a solvent box and a washing machine sink component; the automatic adding device also comprises an automatic adding precise control device which is connected with the washing machine water inlet valve, the solvent box and the washing machine sink component through connecting pipelines respectively; the automatic adding precise control device is provided with a negative pressure suction port and a constant volume container; and a solvent in the solvent box is pumped into the constant volume container by negative pressure generated by inlet water of the washing machine sink component, and the quantitative solvent is flushed into the washing machine sink component by the inlet water of the automatic adding precise control device and further flows to a washing drum. The automatic adding device makes great contribution on the aspect of adding the detergent to the washing machine, can precisely add different detergents, can fully realize automatic addition by using the negative pressure generated by the inlet water, has a simple structure, realizes automation of the washing process, and improves the washing efficiency.

The invention discloses a perforating device suitable for steel tubes with different diameters. The perforating device comprises a base, a clamping device and rolling adjustment devices symmetrically arranged on the front and back sides of the clamping device are arranged at the end face of the top of the base, and a perforating rack is arranged at the position, between the clamping device and the back rolling adjustment device, of the base; a first rolling groove and a second rolling groove which are arranged in a bilateral symmetry manner are arranged in each rolling adjustment device, a separating plate is arranged between each first rolling groove and the corresponding second rolling groove, the first rolling grooves and the second rolling grooves are each internally provided with a bearing piece, and the bearing pieces on the left and right sides are each internally provided with rollers with taper face sides oppositely arranged; a lifting sliding cavity is arranged in the clamping device in a manner of being communicated with the base at the bottom of the clamping device, and a lifting sliding piece is arranged in the lifting sliding cavity; and through grooves are symmetrically arranged on the left and right sides of the top of the clamping device, and a driving sliding cavity is arranged in the lifting sliding piece. The perforating device is simple in structure and convenient to operate, and the perforating accuracy and stability are improved.

The invention provides a lighting device and an inputting device, thereby adjusting the quantity of light emitted from a light source, guided into a light guide layer and provided to a plurality of lighting indication parts according to each lighting indication part. The light source (8) is opposite to the light guide layer (3) to form the lighting device (30). A plurality of diffuse reflection parts (35A,35B) are formed on the surface of the light guide layer (3) and concave reflected rays (37A,37B) are formed on the diffuse reflection parts (35A,35B). The reflected rays (37A,37B) are different in the diffuse reflection parts (35A,35B) relative to the cross angles of optical paths (LA,LB) extending from the light source (8). The result shows that: the quantity of the light reflected by the diffuse reflection parts (35A,35B) and provided to the lighting indication part thereon and the quantity of the light through the diffuse reflection parts (35A,35B) are adjusted.

The invention provides an authentication method of a mobile communication terminal and a system thereof. The authentication method of the invention comprises the steps that: the identifier of the mobile communication terminal, an SIM card identifier and password for a subscriber are first obtained to generate authentication information; the generated authentication information is then sent to an authentication server which carries out the authentication to the authentication information to obtain the authentication result; the authentication result is finally sent back to the mobile communication terminal; the mobile communication terminal judges whether the authentication is successful or not according to the authentication result and the mobile communication terminal can be normally operated when the authentication is successful. In the method of the invention, when the subscriber changes the SIM card of a mobile phone, the authentication of a legal subscriber can be accomplished on the server and an illegal subscriber still fails to use the mobile phone normally even the phone re-burns records. Therefore, the authentication method of the invention can prevent the situations such as the stealing of mobile phones or phone cards, which results in that the mobile phone can be avoided being stolen.

The invention discloses multirobot collision preventing method and system. Robots obtains motion speeds and motion tracks to obtain positions of simulated movements within a preset time and create an environmental map; coordinates of the geometric profile peaks of the robots are sequentially obtained; whether the robots collide with obstacles or other robots or not according to different judgment methods, and time marks are made; all collision marking information and robot position related information are acquired, the environmental map is updated, and the moving speeds and the moving tracks of the robots are adjusted. The collision between the robots and the obstacles or other robots can be greatly avoided, normal operation of most of robots can be effectively ensured, different judgment times can be adopted for predicted collision between the robots and the obstacles and predicted collision between the robots, and the calculation time can be greatly shortened.

The invention discloses a wristband structure having heart rate detection function and a running examination system and a method thereof. The wristband structure having heart rate detection function comprises a wristband body, a heart rate sensor is arranged in the wristband body, a display screen is arranged on the front surface of the wristband body, a circuit board connected to the heart rate sensor is arranged in the wristband body; a data processing circuit is arranged on the circuit board, a wireless communication module is connected to the data processing circuit, and a prompting apparatus is connected to the data processing circuit. The wristband structure has heart rate detection function, and has the functions for receiving and sending data. By employing the prompting apparatus, when heart rate of user exceeds maximum set value, prompting information is sent, so that faint or sudden death after sport can be prevented. The running examination system can realize automatic timing function while running examination through the wristband structure on the examiner, workload of supervisor can be greatly reduced, and the running examination system can be used for exercise amount statistics of daily physical activities of students.

The invention discloses a display base wide in application range, and relates to the related technical field of computers. The display base comprises a bottom plate. A base is fixedly connected to the top of the bottom plate. Bottom rods are fixedly connected to the bottom of the inner wall of the base. The tops of the bottom rods are movably connected with a movable plate through groove holes. A lead screw groove is fixedly connected to the top of the movable plate. A rotation rod penetrates one side of the lead screw groove, the end, located outside the lead screw groove, of the rotation rod is fixedly connected with a rotation handle, a clamping groove is formed in the surface of the end, located in the lead screw groove, of the rotation rod, and a clamping device is movably connected in the clamping groove. According to the display base wide in application range, the rotation rod is driven to rotate through rotation of the rotation handle, the rotation rod is used for driving a lead screw to rotate, then the movable rod is driven to move left and right, a vertical plate is driven to move, and fixing of displays different in size is achieved; and through the clamping device, the rotation rod is tightly clamped, loosening is avoided, the fixing effect is good, and universality is high.

The invention discloses a control method of automatic additive adding. The method includes: opening an additive adding control valve, opening a water inlet valve, using negative pressure generated by water inlet to extract additives, measuring water pressure, additive viscosity and additive adding speed, selecting adding time or adding pulse number to judge whether a total adding amount reaches the required additive amount G, and closing the additive adding control valve when the additive adding amount reaches G to complete additive adding. The control method has the advantages that a flow sensor and a negative pressure structure are used in coordination, precise adding of various liquid additives is achieved by combining the on and off of the adding control valve, the influence of the water pressure and the precise detection of the flow sensor and by precise judgement, washing and rising effects are increased, and the control method is simple and practical.

The invention discloses a control method of an electronic expansion valve of an indoor machine during refrigerating of a convertible frequency air conditioner. The control method comprises the following steps of: 1, judging whether a microprocessor of the indoor machine (8) is in a heating standby state; 2, regulating the openness of the corresponding indoor electronic expansion valve (7) to reach 30-50 paces by the microprocessor; and 3, keeping the openness of the indoor electronic expansion valve (7) in the step 2 for 2-6min, regulating the openness of the corresponding indoor electronic expansion valve (7) by the microprocessor according to temperatures transmitted by a liquid pipe temperature sensor (9) and an indoor heat exchanger coil temperature sensor (11) every 15-35S in accordance with the following rules: the openness of the regulated indoor electronic expansion valve (7) is equal to the sum of the openness of the indoor electronic expansion valve (7) before the regulation and the openness of the regulation of the indoor electronic expansion valve (7), and the openness of the regulation of the indoor electronic expansion valve (7) is equal to (T3-Tmin-A)*E+delta(T3-Tmin)*F. Compared with the prior art, the control method disclosed by the invention has the characteristics of being suitable for a one-more air conditioner, being capable of effectively ensuring stable operation of the system and improving heating efficiency of the system, being low in energy consumption, and ensuring that the temperature change range of an indoor environment is smaller and the comfort degree of the indoor environment is higher.

PROBLEM TO BE SOLVED: To form the anodically oxidized films of the row of zip teeth of a fastener chain to arbitrary thicknesses while preventing the defects of energization and contact.SOLUTION: The forming apparatus 1 has an external energizing section 8 for electrically and directly energizing an electrode plate 4a disposed in an electrolyte of a first electrolytic cell 2a and a chain introducing section 5 to each other and a plurality of energizing sections 9 for energizing two sets a pair of adjacent electrode plates 4 within the second and subsequent electrolytic cells 2 to each other across the electrolyte and the fastener chain F. While the fastener chain is successively wrapped around a plurality of rollers 3 and 7 and is transferred zigzag, the tooth trains of the fastener chain are directly energized through the energizing yarn of the fastener chain by the external energizing section. The two sets a pair of the second and subsequent electrode plates are energized to each other in the bath by the energizing sections. The anodically oxidized films having the arbitrary film thicknesses are formed by changing the number of the passage stages to the second and subsequent electrolytic cells, the energizing quantity in the arbitrary electrolytic cells, etc.

The invention discloses an intelligent lock based on a storage cabinet of the Internet of Things and an operation method of the intelligent lock. The intelligent lock comprises a shell, a panel, a lock body, a motor module, a mechanical unlocking module, a main board module and a fingerprint recognition module. The intelligent lock has the functions of electronic unlocking and automatic locking and also has the functions of manual unlocking and locking. The using safety and operation convenience of the intelligent lock are improved, and the installing cost is reduced.

The invention is suitable for the technical field of automatic control, and provides a production line device used for similar multistage assembly product code assigning and tracing. A first bar code reader 5 is used for reading EAN-13 codes of single stage products after separation, a first rejection device 6 is used for rejecting the single stage products with the reading EAN-13 codes, not involved in current work order information, a first obstruction cylinder 7 is used for obstructing the single stage products under a laser coding machine 8, the laser coding machine 8 is used for printing two-dimensional codes on the upward sides of the single stage products, a first pushing cylinder 9 is used for pushing the obstructed single stage products periodically, an interval separation device 10 is used for separating the single stage products moving again at equal intervals according to a setup parameter, a two-dimensional code collector 11 is used for reading the two-dimensional codes of the single stage products, and a second rejection device 12 is used for rejecting the single stage products with the two-dimensional codes which cannot be read successfully. Through operations of an IPC and a PLC device, the parameter setting is finished, so that the production line device can produce special-type or special-stage finished products as required, and has the universality, and the cost is reduced.

The invention relates to a method for extracting and identifying graphic and text information of a scanned document, which comprises the following steps of: 1) preprocessing a scanned document image,carrying out layout segmentation on the preprocessed image, and selecting items, including but not limited to, a signature and a seal; (2) preprocessing the signature extracted in the step (1), removing a background by adopting an OTSU algorithm, inputting the signature into a Writer-Dependent network to extract a characteristic value of the signature, and inputting the characteristic value into an SVM classifier obtained by using real signature training to obtain the authenticity of the signature; (3) conducting polar coordinate transformation on the seal extracted in the step (1) after preprocessing, so that annular characters in the seal are expanded into transversely-arranged characters, inputting the expanded characters into a CPTN + CRNN network to be sequentially extracted and recognized, and outputting the character content of the seal; 4) judging the validity of the document. The method can replace manual work to analyze and judge the document.

The invention relates to an optical fiber micro cable withdrawing and releasing winch, which comprises a direct current torque motor, a winding drum, a tensioning mechanism and a cable arrangement mechanism, wherein the winding drum is connected with an output shaft of the direct current torque motor; the tensioning mechanism comprises a movable pulley, a fixed pulley A and a fixed pulley B; the movable pulley is arranged on a bracket with a spring device; and the optical fiber micro cable is wound and connected to the winding drum through the fixed pulley A, the movable pulley and the fixed pulley B. The invention has the advantages that: 1) the winch drives the winding drum through the direct current torque motor, the tension control characteristic is improved, the cable tension is directly controlled through a mode of controlling the motor current, and the defect brought by the conventional speed closed-loop control system is overcome; and 2) the tensioning mechanism with length compensation function is arranged in the winch, and the condition of too tight or too loose cable due to instantaneous speed change is prevented.

The invention relates to a processing method of Chinese redwood barks. The processing method comprises the following steps: (1) cleaning the Chinese redwood barks, mixing the Chinese redwood barks with a processing agent (1) at 40 DEG C for 10-15 minutes for treating; (2) processing the Chinese redwood barks processed in the step (1) at the temperature of 85 DEG C and the relative humidity of 75% for 3 hours; (3) soaking the Chinese redwood barks processed in the step (2) at 45 DEG C for 3-5 hours by virtue of a softener; and (4) processing the Chinese redwood barks processed in the step (3) at the temperature of 60 DEG C and the relative humidity of 45% for 2 hours, and airing until the water content is 55%-65%. By specially processing the Chinese redwood barks by virtue of the processing method, the softening effect of the Chinese redwood barks can be greatly improved, and the Chinese redwood barks are uniformly softened, so that situations of breakage, cracking and the like in a weaving process are prevented, and the yield of woven products is high after processing and reaches above 96.2%.

The invention discloses intelligent adjustable bread packaging equipment which comprises a conveying device used for conveying bread to be packaged. The conveying device is provided with a horizontally-arranged chain plate conveying belt. The feeding end of the chain plate conveying belt is provided with a fault recycling device. The discharging end of the chain plate conveying belt is provided with a separation groove. One side of the separation groove is provided with a pushing device which pushes bread in the separation groove to a packaging device opened by a bagging device. A packaging bag used for the bagging device is output by an adjustable packaging bag output device and transferred by a taking device. The fault conditions can be intelligently avoided, intelligent seamless connection of the packaging process is achieved, labor is reduced, the production efficiency is greatly improved, the cost is saved, adjustment can be achieved according to different sizes of packaging bags, accordingly, different specifications of products can be packaged, the applicability is high, the structure is simple, and adjustment is convenient.

The invention relates to a system and a method for managing automobile power. The system comprises a combination instrument, an alarm device and a body control module BCM, wherein the combination instrument is provided with a voltage division circuit for detecting the voltage of a storage battery of the vehicle; and the combination instrument is connected to the alarm device and controls the alarm device, and is connected with the body control module BCM and can transmit a control signal to the body control module.

The invention provides a vacuum adsorption device of a battery pole piece, which is suitable for laser cutting operation and has simple structure and strong practicality. The device comprises a sealed cavity which is provided with vents communicated with a vacuum generator; the key point is that the top surface of the cavity is a plane substrate provided with plural adsorption through holes; the substrate is provide with an indent clearance groove along the cutting line of the battery pole piece; the cavity and the vacuum generator form a vacuumizing device; under the vacuumizing action of the vacuum generator, the battery pole piece can be tightly adsorbed on the substrate without lifting and bending or collapsing; the substrate is provided with the indent clearance groove along the cutting line of the battery pole piece, thus avoiding the uneven substrate as the substrate is cut and scratched when laser light beams cut the substrate during laser cutting, ensuring the cutting quality of subsequent battery pole pieces, and prolonging the service life of the substrate. The device has simple and reasonable structure, favorable adsorption effect and better popularization and application values.

A combustor fire cover comprises an annular inner ring wall face, an annular outer ring wall face and a cover body located above the inner ring wall face and the outer ring wall face, wherein the inner ring wall face and the outer ring wall face are concentrically arranged in a spaced mode. The outer ring wall face is provided with fire holes and small fire holes, wherein the fire holes are evenly distributed in the circumferential direction of the outer ring wall face at intervals and penetrate through the outer ring wall face in the thickness direction, and the small fire holes and the fire holes are arranged in a vertical spaced mode. A partition plate is arranged between the inner ring wall face and the outer ring wall face, the space defined by the inner ring wall face, the outer ring wall face and the cover body is partitioned into a first cavity and a second cavity, the fire holes are located in the first cavity, the small fire holes are located in the second cavity, the partition plate is provided with holes to enable the first cavity and the second cavity to be communicated, the first cavity is communicated with an external gas mixing room, and fuel gas enters the second cavity from the first cavity through the holes. By means of the combustor fire cover, extinction caused when big fire and small fire are switched or detonation caused when fire is extinguished or the like can be prevented, the phenomena of floating flames and blow-off of the fire holes of the fire cover can be prevented, and the combustor fire cover is of a detachable structure and is convenient to clean.

The invention discloses an automatic putting system of a washer and the washer. The automatic putting system of the washer comprises a water box, a distribution box, washing addictive boxes, a negative pressure extraction mechanism and disposable putting boxes. A main water inlet pipe and washing addictive putting pipes are integrated on the water box, the distribution box is arranged in the waterbox, and a first installation part which is provided with one or more installation cavities and a second installation part which is provided with one or more installation cavities are arranged in thedistribution box; unilateral breathable structures and liquid outlets are formed in the washing addictive boxes, the washing addictive boxes are mounted in the installation cavities, when the washingaddictive boxes are communicated with the washing addictive putting pipes, the liquid outlets are opened, and when the washing addictive boxes are disconnected with the washing addictive putting pipes, the liquid outlets are closed; the negative pressure extraction mechanism comprises a Venturi tube which is arranged in the main water inlet pipe, and liquid in the washing addictive boxes is drawnout and put in a washing barrel through the washing addictive putting pipes under the negative pressure which is generated when water flows through an outlet of the Venturi tube; the disposable putting boxes are arranged in the second installation part. A user can replace the washing addictive boxes randomly and adopt different kinds of washing addictive aiming at different clothes each time, andthus the washing experience and efficiency are improved.

A circumcision stitching instrument includes a cylindrical main base; a circular front end cover is arranged at a front end cover of the main base; an inner side ring is projected on the inner circular wall of the front end cover in radial direction; a plurality of axial through nail bin groove holes are formed in the inner side ring in a circular array manner; the nail bin groove holes are of long kidney hole shaped structures; projections on the inner side ring in the radial direction corresponding to every two adjacent nail bin groove holes are intersected in part; the plurality of nail bin groove holes are successively arranged in an imbrication manner in the circumference direction; a U-shaped stitching nail can be arranged in each nail bin groove hole in a matching manner; a circular push body and a blade are coaxially arranged in the main base; the blade is coaxially arranged in the push body; push columns are projected at one end, corresponding to the front end cover, of the push body, wherein the number of the push columns is identical to the number of the plurality of nail bin groove holes, and the cross sections of the push columns are matched with that of the plurality of nail bin groove holes; and the plurality of push columns are inserted in the plurality of nail bin groove holes in a one-to one corresponding manner and can slide with respect to the axial direction in the nail bin groove holes.

The invention relates to the technical field of sprayer bottles of containing liquid, and particularly relates to a detachable chargeable liquid sprayer bottle which comprises a bottle body and a bottle bottom, wherein a lower cover is covered on the bottle bottom, a liquid charging and air exhausting assembly base and a liquid charging and air exhausting assembly which are mutually matched are arranged between the bottle bottom and the lower cover, the liquid charging and air exhausting assembly base is fixedly connected with the bottle bottom and comprises a liquid charging structure, an air exhausting structure, a sealing structure and a limit structure, and a reset mechanism is arranged on the liquid charging and air exhausting assembly. The sprayer bottle is convenient to carry, detach and clean, can be repeatedly used by circularly charging liquid, and can not cause tainting by other odor when different kinds of gases are charged, and thus the resource waste is reduced.

The invention discloses a processing device and a processing method of a simulated groove in the inner wall of a conical water inlet pipe of a water pump. The processing device comprises a supportingmechanism, a processing mechanism, a rotating mechanism and a feeding machine, wherein the supporting mechanism is arranged at the outer part of the rotating mechanism; an output end of the rotating mechanism is connected with one end of the processing mechanism; the other end of the processing mechanism is connected with an action end of the feeding mechanism; one end of the supporting mechanismis defined as a front part, and one end of the feeding mechanism is defined as a rear part. The processing method comprises the following steps: fixing well a pipeline requiring to be processed, and regulating the feeding mechanism until a cutting tool assembly arrives a to-be-processed position; regulating the shape of a supporting frame, and enabling the supporting frame to press the inner wallof the pipeline; regulating a cutting blade of a cutting tool to be in contact with the inner wall of a to-be-processed pipeline; starting a rotating part, and starting to process a groove in the inner wall of the pipeline; repeating the operation, thus realizing continuous processing of the simulated groove in the to-be-processed pipeline. The processing device and the processing method, disclosed by the invention, have the beneficial effects that an application range is extremely wide, and the processing device and the processing method are not influenced by the size of a pipe wall; a self-locking function is obtained, and the accuracy is higher; the processing quality is high.

The invention relates to an overvoltage protection method and an overvoltage protection device of a current transformer. The overvoltage protection method comprises the following steps of: acquiring a current signal on the secondary side of the current transformer; converting the acquired current signal into a voltage signal, comparing the voltage signal with the preset protective value and judging whether the secondary side of the current transformer is an open circuit or not; when the converted voltage signal is more than the preset protective value, short-circuiting the secondary loop of the current transformer; and when the converted voltage signal is not more than the preset protective value, recovering the normal connection state of the current transformer. The overvoltage protection device comprises an acquisition unit, a main control unit, a voltage-limiting protection circuit and an open circuit protection action component, wherein the output terminal of the open circuit protection action component is connected between the output terminals of the current transformer. The method and the device adopt a intelligent mode to control, adopt a mechanical switch to finish open circuit protection and avoid the influence of heating of the electronic device on the whole circuit in the prior art.

The invention provides a vehicle body rear structure. The vehicle body rear structure comprises a rear wheel cover outer plate; the rear wheel cover inner plate is arranged opposite to the rear wheelcover outer plate and connected with the rear wheel cover outer plate in a matched mode; the lower edge part of the rear suspension mounting plate is connected with the upper edge part of the rear wheel cover inner plate, and the side edge part of the rear suspension mounting plate is connected with the inner wall of the rear wheel cover outer plate; and the rear suspension reinforcing plate is arranged in the rear suspension mounting plate, the lower edge part of the rear suspension reinforcing plate is connected with the upper edge part of the rear wheel cover inner plate, and the rear suspension reinforcing plate forms a first columnar cavity between the rear wheel cover inner plate and the rear wheel cover outer plate. According to the rear structure of the vehicle body, through reasonable structural design, the problems of poor rigidity, strength and NVH (Noise Vibration and Harshness) performance of back-sliding type vehicles, steel-aluminum hybrid vehicles, vehicles without cross beams on rear floors and other types of vehicles are well solved while structural light weight is considered. The invention further provides a vehicle comprising the vehicle body rear structure.

The present invention relates to a sample detection apparatus, which comprises a collection chamber for collecting samples and a test element for detecting the sample, wherein the collection chamber and the test element form a fluid communication, and the apparatus further comprises a draining element for making the sample in the collection chamber do not directly flow into the test element. With the sample detection apparatus, the condition that the corresponding detection can not be performed timely due to direct diffusion of the sample out from the test element so as to cause the not significant or invalid detection result can be prevented, and the requirement of the collection amount on the sample is broadened, such that the application range of the detection apparatus is wide.

The invention provides a zipper belt and a zipper chain belt, which can prevent reverse wrinkles when a zipper is woven to a product. Moreover, the problems caused by wrinkles in the zipper in the steps such as dyeing, delivering, injection moulding, and the like, are solved. The provided zipper belt (1,1b) comprises a belt main body (2) and a chain installation part (5) provided with a core rope(20). The belt main body (2) comprises an ear part (4) containing a plurality of warps (10) and a basic part (4) arranged between the ear part (3) and the chain installation part (5). The warps (10) of the basic part (4) are arranged in a more released state, compared with the at least one of the warps of the ear part (3) and the core rope (20).

The invention relates to a printed curcuit board and a manufacturing method of the same. The printed curcuit board comprises a composite material layer having the other surface corresponding to one surface, a first insulation layer formed on one surface the composite material layer, and a second insulation layer formed on the other surface of the first insulation layer. The coefficients of thermal expansion of the first insulation layer, the second insulation layer and the composite material layer are different. The printed curcuit board selectively adjusts the content of insulation layer filler arranged between copper foil layers, so that the insulation layer with different thermal expansion coefficients are formed, and bad situations such as warping and distortion can be prevented.

The invention relates to the technical field of processing of PCBs, in particular to an inner core plate of a sandwich plate and a lamination error proof method of the sandwich plate. The inner core plate is provided with an inner core plate inspection area which comprises n-2 layer sign areas of the inner core plate arranged in sequence, the (n-1)th layer plate is provided with a plate layer serial number and a plate layer detection copper bar in the (n-2)th inner layer core plate layer sign area, the n stands for the layer number of the sandwich plate, and the n is larger than 3. The sandwich plate manufactured by adopting the inner core plates is provided with the inner core plate inspection area, stacking up of the inner core plates and inspection after lamination in a lamination procedure of the sandwich plate are facilitated, the situations that the inner core plates are place more or less or reversely are avoided effectively, the fact that bad products caused by stacking errors flow into customers is avoided, quality of products is improved, and outflow of bad products is avoided.

The invention discloses a non-contact sleeper identification method in a low-speed moving state, which can effectively improve the accuracy and precision of sleeper identification, rapidly detect thegeometrical state of the track, and prevent incorrect detection and missing detection of the sleeper. The non-contact sleeper identification method comprises the steps: fixedly arranging a laser sensor on the bottom surface of a main beam of a dynamic measuring trolley, wherein the emitting surface of the laser sensor is co-planar with the bottom surface of the main beam of the trolley, and the laser aiming line is aligned with a rail base or sleeper; pushing the dynamic measuring trolley according to a measuring path for enabling the laser sensor to scan the sleeper and a ballast bed below the laser sensor for measuring the distance between the laser sensor and the sleeper as well as the distance between the laser sensor and the ballast bed, and recording the acquired original data; matching the laser sensor with a speedometer to draw an original oscillograph, wherein the transverse direction of the original oscillograph stands for mileage, and the longitudinal direction of the original oscillograph stands for the distance between the laser sensor and the sleeper as well as the distance between the laser sensor and the ballast bed acquired by the laser sensor; performing data filtering on the original oscillograph for removing high-frequency signals to obtain a smooth oscillograph; measuring waveforms to obtain distance between adjacent wave crests t1 and wave crest width t2;and performing automatic identification on the sleeper by taking the distance between two adjacent wave crests t1 and the wave crest width t2 as constraint conditions.