49results about How to "Avoid detecting blind spots" patented technology

The invention discloses a method for detecting the error of a program control flow and intends to overcome the difficulties in increasing the detection rate of the errors of the control flow by the conventional method and solve the difficult problem with the detection of the control flow inside basic blocks and among processes. The method comprises the following steps according to the technical scheme of the invention: firstly, identifying basic blocks and confirming the routing relation among the basic blocks; then, confirming the maximum required number of detection commands of the internal control flow of each basic block according to the requirements of the internal control flow and the constitutive characteristics of the basic blocks; designing the labels for the basic blocks on that basis, and distributing the unique static label to each basic block; then, inserting the detection commands into the head part, inner part and tail part of each basic block in the program respectively, re-assembling and re-linking the assembler of the inserted detection commands of the control flow, and generating an executable program for achieving the detection of the error of the control flow.

The invention relates to a system for detecting a curved surface lens, which comprises a ring-shaped light source device arranged above the curved surface lens, and an image acquisition device arranged above the ring-shaped light source device; the ring-shaped light source device is provided with an opening, through which the image acquisition device can acquire an image of the curved surface lens; and therefore, by the production of uniform light by the ring-shaped light source device at the opening and the projection of the light onto the curved surface lens to be tested, the detection accuracy can be enhanced.

The invention discloses an equipment control method, a device, a system and household electrical appliance equipment; the control method comprises the following steps: monitoring whether a human body shows in an equipment controller assigned scope or not; if yes, determining whether the human body behavior purpose is to approach the equipment controller or not; if yes, starting the equipment controller control function. An external camera and the equipment controller can be linked to greatly enlarge the detection scope, thus preventing detection blind angles; the method and device use an approach algorithm to determine the human body purpose for reaching the equipment controller, thus reducing equipment controller mal-wakening rate, and improving the equipment controller reaction accuracy.

The invention discloses a silkworm cocoon sorting method. According to the silkworm cocoon sorting method, silkworm cocoons are subjected to quality detection and separation by using a silkworm cocoon sorting machine; the silkworm cocoon sorting machine comprises a rack and a discharging device, wherein a rolling stripping roller is arranged on the rack and in front of the discharging device; a plurality of conveyor belts with positioning grooves at interval are arranged in front of the rolling stripping roller; a separation scraping roller with the advancing direction opposite to that of the conveyor belts is erected above the plurality of conveyor belts; the rack is provided with a working platform, a plurality of conveying chains and a box body; a camera and a lamp are arranged in the box body; and a sorting device is arranged on the rack and behind the box body. The silkworm cocoon sorting method comprises the following steps: A, blanking; B, separating silkworm cocoons; C, putting the silkworm cocoons in place; D, detecting; and E, sorting. With the adoption of the silkworm cocoon sorting method, the silkworm cocoons are subjected to quality detection and sorting one by one.

The invention discloses an automobile air-conditioning system sealing detection and refrigerant injection device, and aims at providing the automobile air-conditioning system sealing detection and refrigerant injection device which can effectively perform airtightness detection on an automobile air-conditioning system and can directly perform refrigerant injection after completion of detection and is great in functional integration and high in working efficiency. The automobile air-conditioning system sealing detection and refrigerant injection device comprises a PLC and a master electromagnetic valve. The master electromagnetic valve is provided with an atmosphere access in-valve path, a vacuum pumping in-valve path, a refrigerant inlet in-valve path, a refrigerant injection in-valve path and an in-valve cavity which is communicated with all the in-valve paths. The vacuum pumping in-valve path is connected with a vacuum pump through a pumping pipeline. The pumping pipeline is provided with a vacuum pressure sensor. The refrigerant inlet in-valve path is connected with a refrigerant liquid storage tank through a refrigerant inlet system. The refrigerant inlet system comprises a refrigerant inlet pump, a refrigerant flowmeter and a refrigerant inlet non-return valve. The refrigerant injection in-valve path is connected with a refrigerant injection adapter through a refrigerant injection pipeline. The refrigerant injection pipeline is provided with a refrigerant injection pressure gauge.

The invention discloses a silkworm cocoon sorting machine which comprises a rack, wherein an unloading device is arranged on the rack; a rolling peel-off roll is arranged on the part, in front of the unloading device, of the rack; a plurality of conveyor belts which are provided with positioning slots in a spaced mode are arranged in front of the rolling peel-off roll; a separating scraping roll with an advancing direction reverse to the direction of the conveyor belts is arranged above the plurality of the conveyor belts; a workbench, a plurality of conveying chains and a box body are arranged on the rack; a camera and a lamp are arranged in the box body; and a distributing device is arranged on the part, behind the box body, of the rack. The silkworm cocoon sorting machine can sort the silkworm cocoons by carrying out quality detection on the silkworm cocoons one by one.

The present invention discloses an automatic biometric identification sterilization system based on cloud control, and relates to the smart home technology field. The system comprises the mobile terminal of a cloud, a remote control module arranged on the mobile terminal and a sterilization device controlled by the remote control module. The sterilization device comprises an ultraviolet lamp, a processor and an infrared detection module, the ultraviolet lamp is connected in electric supply, the processor is connected in light current through a voltage conversion module, the processor is connected a wireless communication module being connected with a home network center, the processor is connected with an or gate circuit, the or gate circuit is connected with three-way infrared detection circuit, and any one of the three-way infrared detection circuit detect infrared signals to trigger the processor to emit a sterilization instruction to control the closing of the ultraviolet lamp. The automatic biometric identification sterilization system based on cloud control realizes cloud remote control of the sterilization device, the three-way infrared detection circuit can be employed to perform 360-degree omnibearing detection of living beings around the sterilization device so as to avoid detection blind angles and avoid ultraviolet ray damaging for human being and pets.

The invention discloses a detection method for a weld joint defect of a thick-wall small-diameter tube. The method comprises the steps of selecting a probe; processing a wedge with radian fit with the small-diameter tube according to the detected outer diameter of the small-diameter tube; coating coupling agent between the wedge and the probe, and then tightly connecting the wedge with the probe via a fixing screw; installing the probe on a scanner which completes verification, coating the coupling agent on the surface of the small-diameter tube, then fixing the scanners on one side of the weld joint of the small-diameter tube and symmetrical positions on the other side of the weld joint of the small-diameter tube, thus ensuring that a distance between the front edge of the probe and the central line of the weld joint is invariable, and manually scanning around the weld joint for scanning; analyzing a collected phased array image to determine the defect condition in the small-diameter weld joint, and if no, ending the detection; otherwise, determining the position of the defect in the small-diameter tube according to the collected phased array image, and performing CR detection by selecting a transillumination angle, thus acquiring a CR image; and comparing the CR image with the collected phased array image to finally determine the property of the defect in the weld joint of the small-diameter tube.

The invention discloses a detection platform for engineering machinery electrical equipment, and relates to the technical field of electrical equipment detection. The detection platform comprises a base, wherein two sides of the base are fixedly connected with a plurality of tire devices respectively; the upper surface of the base is rotatably connected with a rotary table; the upper surface of the rotary table are fixedly connected with an ultrasonic detection instrument and a pulse detection instrument respectively; the upper surface of the rotary table is fixedly connected with a fixed rod;the side wall of the top of the fixed rod is fixedly connected with a protruding shaft; the side wall, away from the fixed rod, of the protruding shaft is fixedly connected with a limiting block; anda plurality of first fixed holes are formed in the side wall of the top of the fixed rod. According to the detection platform, partial discharge detection can be carried out on the engineering machinery electrical equipment quantitatively and precisely through mutual cooperation of the ultrasonic detection instrument and the pulse detection instrument, detection errors are avoided to cause partial discharge and then accelerate aging of the electrical equipment, the detection platform can be applicable for different specifications and sizes of electrical equipment by setting a clamping plate with high degree of freedom, the generation of detection dead angles is avoided, and the detection process is more thorough.

The invention relates to an on-line appearance detecting machine after lamination of solar cell panels, which comprises a main machine frame, a turnover mechanical arm and a drive device for driving the turnover mechanical arm to turn over, wherein the turnover mechanical arm and the drive device are arranged on the main machine frame. At least two sucking discs are arranged on the turnover mechanical arm, a placing frame for placing the solar cell panels is obliquely arranged on the main machine frame in the upward turning-over direction of the turnover mechanical arm, and the lower portion of the placing frame is provided with a stop opening for preventing the solar cell panels from falling down. The solar cell panels are turned over from bottom to top by the turnover mechanical arm, the fixing is achieved by sucking glass surfaces of the solar cell panels, the just-laminated solar cell panels which are not influenced, quality hidden danger caused by sucking force is avoided, and the product quality is improved. When the on-line appearance detecting machine performs detection, operation is completely exposed in the presence of detecting workers, the detection is performed in place, and detection of dead corners is avoided.

The invention relates to the technical field of package detection, in particular to a cigarette packet package appearance detection method . The method comprises the following steps of: collection andstorage of standard package appearance characteristics: normally detecting at least three standard cigarette packets, performing collection to obtain standard parameters, and storing the standard parameters in a memory; on-line cigarette packet comprehensive detection to obtain detection data of all points of the cigarette packet; detection result judgment: contrasting the similarity between thecigarette packet and the standard parameters and the image position coordinate data, and judging whether the similarity and the image position coordinate data are within an allowable tolerance or not;rejection of unqualified parts, namely rejecting the unqualified parts through a self-rejecting mechanism. Compared with the prior art, the method provided by the invention has the beneficial effectsthat: the detection result is comprehensive and accurate, and the system applies a comprehensive detection technology to improve the accuracy of the detection result; the operation is simple, complexconfiguration is not needed, and manual intervention is not involved in the whole process; reflective packaging materials can be detected, a diffuse reflection mode is used for uniform illumination on cigarette packets, and the problems of corner shadows and random reflection are thoroughly solved.

The invention discloses a method for detecting silkworm cocoon quality. The method comprises following steps: using a silkworm cocoon quality detection device to detect silkworm cocoon quality one by one, wherein the silkworm cocoon quality detection device comprises a machine frame which is provided with a work platform and conveying chains. The work platform is provided with a box body and all the conveying chains traverse the box body. The box body is provided with a camera, an image processor and a lamp therein. Each of the conveying chains comprises a guide rail, a support frame, a chain, barcode frames, and rollers. The detection method comprises following steps: putting a silkworm cocoon between every two rollers, and starting a power machine to make the silkworm cocoon rotate for at least 360 degrees during its stay in the box body; scanning and recording the whole process of the silkworm cocoon entering the box body with the camera and transferring the record and digital barcode information on the barcode frame to the image processor for processing. By use of the method, the quality of each silkworm cocoon can be detected.

The invention relates to the technical field of packing box production, and specifically relates to a machine vision based packing box quality detecting method and system. The method comprises the following steps: inputting related information into a production management module through management people; acquiring product property information and a product detection scheme through a shooting control module, and acquiring product property information and the product detection scheme through a vision handling module; adjusting the angle of a product to be detected through the shooting control module based on the product detection scheme, and controlling an industrial camera to shoot in a plurality of directions and angles; handling the image information through the vision handling module based on the product property information and the product detection scheme; calling an algorithm module to analyze the quality; recording the product quality analyzing result through a production management module; and sorting the product through a sorting control module based on the instruction. Therefore, the quality detection efficiency is improved; and moreover, the detection accuracy is greatly improved.

The invention discloses a silkworm cocoon sorting machine which comprises a rack, wherein an unloading device is arranged on the rack; a rolling peel-off roll is arranged on the part, in front of the unloading device, of the rack; a plurality of conveyor belts which are provided with positioning slots in a spaced mode are arranged in front of the rolling peel-off roll; a separating scraping roll with an advancing direction reverse to the direction of the conveyor belts is arranged above the plurality of the conveyor belts; a workbench, a plurality of conveying chains and a box body are arranged on the rack; a camera and a lamp are arranged in the box body; and a distributing device is arranged on the part, behind the box body, of the rack. The silkworm cocoon sorting machine can sort the silkworm cocoons by carrying out quality detection on the silkworm cocoons one by one.

The invention discloses a home robot which comprises a housing, at least one ultrasonic wave sensor arranged on the housing, and a controller; the ultrasonic wave sensor is used for detecting an object in the movement direction of the home robot and acquiring the distance between the home robot and the object; and the controller is connected with the ultrasonic wave sensor and controls the home robot according to the distance. With the adoption of the home robot, the barrier efficiency can be improved, collision can be reduced, and furniture can be protected. The home robot is more intelligent. The invention further discloses a control method of the home robot.

The invention relates to the technical field of packaging box detection, in particular to a packaging box strength testing device and method.The packaging box strength testing device comprises a base, a downward-pressing detection part and a corner detection part, the downward-pressing detection part is installed on the top of the base, and the corner detection part is arranged on the downward-pressing detection part; an existing detection device has the following problems that when the detection device fixes a packaging box, the packaging box is likely to incline, and therefore the detection precision of the packaging box is likely to be affected; the detection device can only detect the longitudinal compressive strength of the packaging box and cannot detect the transverse compressive strength of the corner of the packaging box, so that the packaging box cannot be comprehensively detected; the packaging box can be clamped and limited in all directions through the four guide clamping plates, and the packaging box can be prevented from inclining, so that the detection precision of the packaging box is ensured; the longitudinal compressive strength of the packaging box and the transverse compressive strength of the corners of the packaging box can be detected at the same time, and comprehensive detection of the packaging box is facilitated.

The invention provides a light inspection method and a light inspection machine for a soft bag, and the method comprises the following steps: clamping the shoulder part of the soft bag to enable the soft bag to be in a vertical state, knocking the surface of the soft bag, clamping the bottom area of the soft bag by adopting a light-transmitting clamp, adopting a backlight source and a side light source to irradiate the bottom area of the soft bag, and detecting a heavy foreign matter in the bottom area of the soft bag; adopting a backlight source and a side light source for conducting cross irradiation on the soft bag body to detect the suspended foreign matter of the soft bag body; adopting a shadowless light source to irradiate the edge area of the soft bag, photographing the edge area of the soft bag in the rotating state and the sudden stop state, and detecting the foreign matter in the edge area of the soft bag; and photographing and detecting black spots of the cover body of the soft bag in the rotating state. According to the all-dimensional dead-corner-free light inspection method, all foreign matters on the side edges, the bottom edges, the cover bodies and the bag bodies of the soft bags can be detected, the omission ratio is reduced, and therefore the detection quality of the foreign matters of the soft bags is greatly improved.

The invention discloses a circumference security radar system. The system comprises a first radar module, at least one second radar module, at least one third radar module, multiple infrared detectionsensors and master control equipment; the first radar module comprises a first signal emission unit, a first signal receiving unit and a signal reflector; the first signal emission unit and the firstsignal receiving unit and the radar reflector are arranged at two ends of to-be-monitored circumference, wherein the first signal emission unit and the first signal receiving unit are located at thesame end, and the radar reflector is located at the other opposite end; the first signal emission unit emits first microwave energy to the to-be-monitored circumference, the first microwave energy isreflected to the first signal receiving unit through the signal reflector, the first signal receiving unit judges whether the circumference through behavior is existent by monitoring the first microwave energy; and the second radar module comprises a first microwave emission unit and a first microwave receiving unit. Through the circumference security radar system provided by the invention, the sensitivity and accuracy of the detection can be improved, and the dead angle detection is avoided.

The invention discloses a spinning frame yarn broken end detection device. The device comprises a fixing frame, warp beams are rotatably connected to the inner walls of the two sides of the fixing frame, a detection frame is arranged on the fixing frame, an installation frame is arranged on the detection frame, a driving assembly is arranged on the installation frame, a detection assembly is arranged on the driving assembly, and the detection assembly is driven to do reciprocated motion in the axial direction of the warp beams. The detection assembly comprises an infrared emitter, the infraredemitter is connected with the driving assembly through an adjusting assembly, and the infrared emitter is driven to conduct pitching adjustment. According to the detection device, the reciprocating detection assembly is adopted, all-position detection processing can be conducted on broken yarn wound and bulged on the warp beams, meanwhile, the detection angle of the detection device can be adjusted in cooperation with an adjusting assembly, it is guaranteed that the detection angle of the detection device can be matched with the winding thickness of the yarn on the warp beams in real time, and therefore, the detection accuracy of the end yarn on the warp beams is improved.

The invention provides a remote fault monitoring and pre-warning system and method for motor train unit traction transformer oil pumps and belongs to the technical field of transformers. The problem that in the prior art, devices for remotely monitoring the offset of bearings of the transformer oil pumps are lacked is solved by the remote fault monitoring and pre-warning system and method for the motor train unit traction transformer oil pumps. The fault monitoring and pre-warning system comprises a cloud calculation center, a plurality of in-situ monitors and a plurality of clients, wherein the in-situ monitors and the clients are connected with the cloud calculation center; and the in-situ monitors are used for detecting the offset of rotor bearings of transformers; the cloud calculation center is used for analyzing data, judging the operation condition of the transformer oil pumps corresponding to the in-situ monitors and outputting the result to the clients to be displayed. The method includes the steps that A, a PCA pivot element model is established; B, comparing judgment is performed; and C, the comparison result is output. The remote fault monitoring and pre-warning system and method for the motor train unit traction transformer oil pumps can achieve local and remote fault monitoring and pre-warning of the transformers, monitoring is comprehensive, real-time display is achieved, and practicability is high.

The invention discloses a multi-angle detecting platform for a solar cell panel. The multi-angle detecting platform comprises a work surface, wherein a rotary suction platform is arranged on the work surface in a protruded mode, a part to be detected is fixed on the rotary suction platform, locating sensors are arranged on the positions, corresponding to the edges and corners of the part to be detected, of the work surface, and an illumination device fixed above the rotary suction platform is electrically connected with the locating sensors. By mean of the mode, the solar cell panel can automatically rotate through the multi-angle detecting platform for the solar cell panel, battery pieces on the solar cell panel can be detected through the illumination device in various angles, and detecting accuracy is improved, and detecting blind points are prevented.

The invention discloses an automobile air-conditioning system sealing detection and refrigerant injection device, and aims at providing the automobile air-conditioning system sealing detection and refrigerant injection device which can effectively perform airtightness detection on an automobile air-conditioning system and can directly perform refrigerant injection after completion of detection and is great in functional integration and high in working efficiency. The automobile air-conditioning system sealing detection and refrigerant injection device comprises a PLC and a master electromagnetic valve. The master electromagnetic valve is provided with an atmosphere access in-valve path, a vacuum pumping in-valve path, a refrigerant inlet in-valve path, a refrigerant injection in-valve path and an in-valve cavity which is communicated with all the in-valve paths. The vacuum pumping in-valve path is connected with a vacuum pump through a pumping pipeline. The pumping pipeline is provided with a vacuum pressure sensor. The refrigerant inlet in-valve path is connected with a refrigerant liquid storage tank through a refrigerant inlet system. The refrigerant inlet system comprises a refrigerant inlet pump, a refrigerant flowmeter and a refrigerant inlet non-return valve. The refrigerant injection in-valve path is connected with a refrigerant injection adapter through a refrigerant injection pipeline. The refrigerant injection pipeline is provided with a refrigerant injection pressure gauge.

The invention provides an anti-pinch automatic door. The door comprises a guide rail, a first door body and a second door body which are connected with the guide rail in a sliding mode, a motor used for pushing the first door body and the second door body, a plurality of infrared detectors, hall sensors and a controller; the first door body is provided with a first anti-pinch edge; the second doorbody is provided with a second anti-pinch edge; a magnetic ring is arranged on an output shaft of the motor; the hall sensors are arranged on the peripheral side of the output shaft of the motor; theplurality of the infrared detectors are arranged on a second elastic buffer part at intervals in the length direction of the second elastic buffer part; the infrared detectors and the hall sensors are in signal connection with the controller; and the controller is in control connection with the motor. According to the door, the multiple protection is achieved through the plurality of infrared detectors, the first anti-pinch edge, the second anti-pinch edge and the hall sensors so that the first door body and the second door body which are being closed can be effectively prevented from pinching people.

The present invention provides an anti-pinch automatic door, including: a guide rail, a first door body and a second door body slidingly connected with the guide rail, a motor for pushing the first door body and the second door body, and multiple infrared detectors , Hall sensor and controller, the first door body is provided with the first anti-clamping edge, the second door body is provided with the second anti-clamping edge, the output shaft of the motor is provided with a magnetic ring, and the Hall sensor is arranged at the output of the motor On the side of the shaft, a plurality of infrared detectors are arranged on the second elastic buffer at intervals along the length direction of the second elastic buffer, and the infrared detectors and Hall sensors are respectively connected to the controller for signals, and the controller controls the connected motor. The present invention realizes multiple protection through a plurality of infrared detectors, first and second anti-pinch sides and Hall sensors, and effectively prevents people from being pinched by the first and second doors being closed.

The invention relates to the technical field of greenhouse gas detection systems, and discloses a greenhouse gas detection system based on a micro-fluidic chip, the greenhouse gas detection system comprises a detection system body, the bottom of the detection system body is fixedly connected with an electric box, the bottom of the electric box is fixedly connected with a mounting seat, the mounting seat comprises a butt joint, a rotating shaft and a damping ring, the bottom of the butt joint is fixedly connected with a rotating shaft, and the inner wall of the rotating shaft is fixedly connected with a damping ring. Through cooperative work of the detection system body, the electric box, the mounting seat, the butt joint, the rotating shaft, a damping ring, a lifting device, a mounting rod, a limiting head and a first electric push rod, the equipment can be better adjusted during use, greenhouse gases at different heights can be better detected during use, and the comprehensiveness of detection can be better guaranteed; and the objectivity of the detection result is not better guaranteed during use.

A low-altitude multi-target omnibearing tracking infrared detection device disclosed by the present invention comprises a top seat and a transparent protective cover, the transparent protective cover is arranged at the bottom of the top seat, the transparent protective cover is internally provided with a detection assembly, the detection assembly comprises a support rod, the support rod is fixedly connected with the top seat, and the support rod is fixedly connected with the top seat. A stand column is fixedly connected to the middle of the supporting rod, a fixing base is fixedly connected to the bottom of the supporting rod, and a first motor is installed on the top of the fixing base. The problem that dust is attached to the outer side of the transparent protective cover to block sight is solved through the outer wall cleaning ring, detection blind spots are avoided, the inner wall cleaning ring is beneficial to preventing the phenomena that the inner wall fogs, the sight is blocked and the detection effect is affected, the transmission cylinder drives the lifting ring on the outer side to ascend and descend, the angle of the adjustable detection head can be adjusted, and the detection efficiency is improved. The detection range can be adjusted according to needs, and the multiple adjustable detection heads are arranged, so that all-directional detection is facilitated.

The invention particularly relates to a storage temperature and humidity intelligent control system. The storage temperature and humidity intelligent control system comprises a plurality of temperature and humidity sensors, a multi-channel selector, an analog-to-digital converter, a processor, a relay, a temperature and humidity regulating device and an LED prompt module. The temperature and humidity sensors are all connected with the multi-channel selector, the multi-channel selector is connected with the processor through the analog-to-digital converter, the processor controls starting and stopping of the temperature and humidity regulating device through the relay, and the LED prompt module is connected with the processor. According to the storage temperature and humidity intelligent control system, the detection of temperature and humidity in a warehouse can be realized, meanwhile, through the multi-channel selector, the occurrence of detection bind angles can be avoided, so that the automatic monitoring and regulation of the temperature and humidity of the warehouse is completed.

The invention relates to the technical field of radar detection, and discloses an obstacle detection method, a vehicle control method, a vehicle and a storage medium, and the obstacle detection method comprises the steps: obtaining vehicle position information, and determining a driving scene where the vehicle is located according to the vehicle position information and map information; and / or acquiring surrounding environment information of the vehicle, and determining a driving scene where the vehicle is located according to the surrounding environment information; when the driving scene is a preset scene, starting an ultra-wideband detection mode, and in the ultra-wideband detection mode, sending ultra-wideband detection waves and receiving echoes of the ultra-wideband detection waves; and if the frequency of the echo changes within a period of time, determining that a moving object exists behind the obstacle. Therefore, the moving object behind the obstacle is detected, and the power consumption of the ultra-wideband positioning device is reduced.

The invention provides an intelligent security check device for a conference place. The intelligent security check device comprises a movable bearing seat which can move on the ground and is used for bearing people, a rotary detection device which is arranged outside the movable bearing seat and is used for detecting the whole body of a human body, and a lifting detection device which is arranged on the movable bearing seat and is used for detecting the inner sides of the legs of the people, the rotary detection device rotates around the lifting detection device and is connected with the movable bearing seat; the movable bearing seat is provided with a plurality of universal wheels; the whole body of the human body is detected through the rotating detection device, the inner sides of the legs of the human body are detected through the lifting detection device, detection dead angles are avoided, and the human body is efficiently and comprehensively detected; manual detection is replaced by automatic detection, so that the detection is more accurate and efficient, and omission can be avoided; meanwhile, the movable bearing seat is provided with universal wheels, so that the security check device is convenient to move and is better suitable for meeting places; compared with a traditional security check device, the security check device has the advantages of being movable, high in efficiency and high in automation.