114results about How to "Reduce detection error" patented technology

The utility model discloses a stainless steel tube axis flatness detection bench comprising a base plate, the upper part of the base plate is provided with a mounting seat, the interior of the mounting seat is provided with a sliding groove, the interior of the sliding groove is provided with a second screw rod, and the side surface of the second screw rod extends to the exterior of the mounting seat and is provided with a second motor; and a sliding block is arranged on the surface of the second screw rod. During detection, a stainless steel tube is mounted in the three-jaw chuck, and the first motor is started to drive the movable seat to move and contact with the stainless steel tube, so that the stainless steel tubes of different models can be fixed, the adjusting rod is rotated, and the height of the telescopic column is adjusted, so that the detection contact is in contact with the surface of the stainless steel tube; a second motor drives a second screw rod to rotate, so that a sliding block drives a detection contact to transversely move on the surface of the stainless steel pipe, the detection contact can generate a detection curve according to a moving route, when the detection contact passes through a concave-convex place, the curve changes, and the detection error is small.

The utility model relates to coal quality detection technical field discloses a coal crushing device and coal quality detection device, including casing, screening subassembly, flow guide seat, grinding block and air heater. The casing is equipped with feed inlet and discharge gate. Screening subassembly divides the casing into intercommunicating first chamber and second chamber, the first chamber communicates with the feed inlet, and the second chamber communicates with the discharge gate. The flow guide seat is located in the downside of feed inlet. The grinding block is located in the flow guide seat, and the clearance between the peripheral wall of grinding block and the inner wall of flow guide seat, and the grinding block can rotate relative to the flow guide seat. The air heater is connected with the casing, and the air outlet of air heater is communicated to the second chamber. The coal is crushed through the grinding block, and the crushed coal is collected to the second chamber, and the coal in the second chamber is dried through the air heater, and the crushing and drying of coal are completed in the casing, the operation of manual sample transfer is reduced, the detection error is reduced, the process is saved, and the detection efficiency is improved.

The utility model relates to the technical field of blanking and trimming dies, in particular to a blanking and trimming die for automobile parts, which comprises an upper die, a lower die, a cutter, a stamping device and a workbench, the lower die is mounted at the top of the workbench, and the stamping device is mounted at the top of the workbench. By arranging the pressure sensor, the vibration sensor, the infrared thermal imager, the laser displacement sensor, the display and the like, the pressure sensor is used for collecting the blanking load of the cutter in real time, the vibration sensor is used for monitoring abnormal vibration, the infrared thermal imager captures the temperature change of the cutting edge, and the laser displacement sensor is used for detecting the abrasion loss of the cutter. All kinds of data are synchronously transmitted to the displayer to be visually displayed, full-dimension real-time detection of the working state of the cutter is achieved, hidden dangers such as slight abrasion and hidden cracks of the cutter can be recognized in advance, die damage or material scrapping caused by sudden tipping during high-speed punching is avoided, and the stability and reliability of the machining process are remarkably improved.

The utility model discloses a zipper visual detection device capable of reducing detection errors, which relates to the technical field of zipper detection devices and comprises a detection table and a frame. According to the detection table, a supporting frame is arranged on the left side of the bottom face, conveying rollers are rotationally installed in the supporting frame, a guide roller frame is fixed to the top face of the detection table, the frame is installed on the right side of the top face of the detection table, machine bases are fixed to the upper side face and the lower side face in the frame, and defect detectors are placed in the machine bases; a detection unit is arranged on the left side face of the frame, and a light supplementing unit is arranged on the surface of the frame. According to the zipper visual detection device capable of reducing the detection errors, impurities such as dust on the surface of a zipper can be removed by adopting a matched dust sticking roller, so that the situation that the follow-up detection accuracy is affected due to impurity attachment is prevented, meanwhile, the angle of an illuminating lamp can be adjusted according to different detection conditions, and the detection error is reduced. And the accuracy of zipper detection can be improved by matching with a flaw detector.

The utility model relates to the technical field of motor detection, in particular to motor gear run-out detection equipment. Comprising a rack and a pair of conveying assemblies at the upper end, the upper end of each pair of conveying assemblies is provided with a detection station used for containing a motor to be detected, the two ends of each conveying assembly are provided with linear scanning lasers fixedly connected to the rack, the tail end of each conveying assembly is provided with a grabbing assembly used for clamping and discharging, and the motors are transplanted to the detection stations. A contact pin is arranged in the jig, a product is electrified to rotate after being placed, and rotation of the gear can be controlled through contact between the contact pin and the motor gear, so that preparation is made for subsequent detection. According to the motor gear detection device, the motor gears on the two detection stations can be detected at the same time or in sequence, the detection efficiency is remarkably improved, the to-be-detected motor can be rapidly and accurately conveyed to the detection stations through the design of the conveying assembly, and the waiting time is shortened.

The present application relates to the technical field of brake disc roughness detection, in particular to a brake disc friction surface roughness multi-probe measuring device and measuring method, comprising a rack, a rotary drive assembly, a tensioning positioning assembly and six measuring units, the measuring unit comprises a drive housing and a measuring drive assembly, the measuring drive assembly comprises a drive frame that moves along the radial direction of the brake disc; a swing seat is hingedly connected to the drive frame; a probe housing is fixedly arranged on the swing seat, and a detection probe is arranged in the probe housing; an adjusting frame is slidably arranged on the drive frame; a fine motion drive assembly is mounted on the adjusting frame, the fine motion drive assembly comprises two synchronous eccentric wheels, which are used to drive the probe housing and drive the swing seat to horizontally reciprocate; a fine motion adjusting assembly is mounted on the drive frame, which is used to change the distance between the adjusting frame and the swing seat, so as to control the swing amplitude of the probe housing, realize multi-dimensional full coverage collection of the brake disc plane friction surface, and adapt to the detection conditions of brake discs of different specifications.

The utility model discloses a kind of automobile stabilizer bar detection tool, it is related to automobile detection technical field, including box, two motors are installed in the inside of box, the one end of each motor is connected with screw rod, the outer wall of screw rod is connected with support with thread, the top end side of support is equipped with hydraulic cylinder, the telescopic end of hydraulic cylinder is connected with push rod, the outer wall of push rod is slidably connected with two push blocks, the inner wall of each push block is equipped with sliding slot, each push block is slidably connected with push rod by sliding slot;In the utility model, balanced force of stabilizer bar is realized by three-point positioning using fixing assembly, actual installation working condition is simulated, local stress concentration problem caused by traditional single-point, two-point clamping is avoided, ensure that stabilizer bar is evenly stressed during detection process, avoid deformation or damage caused by improper clamping, reduce the data deviation generated by clamping problem, improve detection accuracy.

This invention provides a method for detecting the coating life of galvanized steel pipes, belonging to the field of metal coating performance testing technology. The method includes the following steps: S1, a layered corrosion test to obtain the remaining thickness data of the pure zinc layer and the iron-zinc alloy layer at different corrosion stages; S2, constructing a layered corrosion kinetic model, using a power-law decay law for the pure zinc layer stage and a decay law reflecting the densification of the passivation film for the iron-zinc alloy layer stage, and setting a model switching mechanism; S3, calibrating the model based on the remaining thickness data to output the depletion life of the pure zinc layer and / or the red rust initiation life of the substrate. This invention provides a method for detecting the coating life of galvanized steel pipes, overcoming the fundamental prediction bias caused by holistic modeling and significantly reducing the detection error of the galvanized steel pipe coating life.

The application relates to the technical field of steel structure engineering and discloses a fastening detection equipment for steel structure engineering, which aims to solve the problem that the detection position of a steel plate changes, thereby affecting the accuracy of detection data. The extension edge is arranged with the moving mechanism, the extension edge is used for limiting the front and back positions of the steel plate, the contact plate is used for limiting the left and right positions of the steel plate, the detection position of the steel plate is opposite to the pressing mechanism, and therefore the accuracy of detection data is avoided from being affected.

The utility model discloses a kind of tea coarse fiber detection devices, it is related to tea coarse fiber detection technical field, including digestion container, funnel one and condenser tube are equipped on digestion container top, water inlet pipe, pipeline and liquid outlet pipe are equipped on the sidewall of digestion container, waste liquid port for discharging digestion container waste liquid is equipped on the pipeline, filter for filtering pipeline discharge waste liquid is equipped on the pipeline between waste liquid port and digestion container, the liquid outlet pipe is connected filtering mechanism. Without disassembling reaction device, waste liquid can be discharged from bottom, replace new digestion solution into reaction device, without transferring digestion residue to other container to clean, convenient operation, reduce fiber residue loss, without back and forth transfer fiber residue, reduce the operation difficulty when tea coarse fiber detection, avoid the loss of digestion fiber residue in repeated transfer process, reduce detection error, so that it is convenient to disassemble cylinder cover and filter cartridge, improve work efficiency.

The application discloses a kind of gas interference simulation device and method for gas alarm testing, belong to gas detection technical field, including detection box, gas alarm is placed in detection box, first gas inlet is opened in the top surface of detection box, exhaust port and the sealing plug that is adapted to the exhaust port are arranged in the side surface of detection box, multifunctional gas analyzer is fixedly installed in detection box, further including: interference device, interference device is fixedly installed in detection box, interference device is used to detect whether the alarm sound of gas alarm is emitted in each specified concentration under interference gas environment, methane is transported from first gas inlet to suction box, cylinder pushes first piston plate to extrude gas into first gas pipe and into detection box, multifunctional gas analyzer detects that methane concentration reaches (5000±50) ppm, whether gas alarm emits alarm signal is observed, then whether stop alarm after two minutes of emptying methane gas through exhaust port, to determine whether gas alarm is qualified.

This invention discloses a frequency-domain guided multi-scale deformable alignment method and system for UAV target detection. The method first acquires and preprocesses a dataset of UAV aerial images. Next, it improves the YOLOv8 model, performing target detection based on the preprocessed UAV aerial image dataset and outputting the target detection results. Finally, the improved YOLOv8 model is integrated into a pre-configured training environment, using training and validation images from the UAV aerial image dataset for training and validation. This invention significantly enhances the model's ability to perceive small targets, thereby significantly improving the localization and classification accuracy of small targets, reducing detection errors, and improving overall accuracy.

The invention relates to the technical field of electrocardiosignal collection, in particular to a portable electrocardiosignal collection device which comprises a detector body and a sliding turnover assembly, and a plurality of electrode contacts are arranged on the bottom face of the sliding turnover assembly and the bottom face of the detector body. Mounting cylinders are arranged on the outer sides of the electrode contacts, telescopic assemblies are arranged below the mounting cylinders, extrusion wetting assemblies located in the mounting cylinders are arranged above the telescopic assemblies, and communication assemblies are arranged between the extrusion wetting assemblies and the telescopic assemblies; the telescopic assembly comprises a first restraining piece, a second restraining piece is arranged in the first restraining piece, and when the first restraining piece makes contact with the human body and squeezes the human body, the second restraining piece extends, and the squeezing wetting assembly humidifies the electrode contact through the communicating assembly; by arranging the telescopic assembly and the extrusion wetting assembly, the area, connected with the human body, of the electrode contact is in a wet state in the electrocardiogram monitoring process, the impedance of the connecting position is reduced, and the baseline drift phenomenon is avoided.

This utility model belongs to the field of fitness equipment testing technology, specifically relating to a fitness equipment installation stability testing device. It includes a base, a laser level body mounted on the top of the base, a laser emitting part located near the top of the laser level body on its outer side, a connecting plate fixedly mounted at the center of the bottom of the base, and connecting sleeves symmetrically fixedly mounted at the bottom of the connecting plate. A cleaning frame is rotatably connected inside the connecting sleeve, extending beyond the outside of the connecting sleeve. A coil spring is located at the center of the inside of the connecting sleeve. This utility model uses a rotating cleaning frame and cleaning roller to clean dust and debris from the location where the support leg is to be placed, reducing the probability of the level tilting due to debris, making the level test results more accurate, reducing testing errors, and eliminating the need for special site cleaning before testing, thus making testing easier and improving efficiency.

The application discloses a kind of composite diaphragm quality detection equipment based on lithium battery production, it is related to lithium battery production relevant technical field, including tensile testing station and be arranged on detection table drive mechanism, the power output end of the drive mechanism is arranged with two sets of clamping mechanism, two sets of clamping mechanism respectively clamps the two ends in composite diaphragm tensile direction, based on the driving action of drive mechanism, two sets of clamping mechanism relatively move, the clamping mechanism includes the drive plate being arranged on the power output end of drive mechanism and the extruding piece being arranged on drive mechanism, drive plate is equipped with clamping plate;In the tensile detection stroke of composite diaphragm, based on the extruding action of extruding piece, the clamping force of clamping plate to composite diaphragm gradually increases.

The utility model relates to the technical field of artificial leather production and processing devices, and provides artificial leather softness detection equipment which comprises a base table, a plurality of bearing tables fixedly arranged on the outer surface of the base table, a plurality of artificial leather placing grooves formed in the outer surfaces of the bearing tables respectively, a top frame fixedly arranged on the outer surface of the base table, and a driving assembly arranged on the top frame. The device is provided with a structure capable of detecting the softness of artificial leather samples with different thicknesses, so that the softness characteristic of a material can be truly reflected, device detection data distortion caused by too thick or too thin artificial leather samples is avoided, device detection errors are reduced, the device can meet diversified requirements, the practicability of the device is improved, and the universal application range of the device is widened. A structure capable of synchronously detecting the softness of a plurality of artificial leather samples is designed, so that the detection efficiency of the device is improved, a plurality of samples can be detected at a time, the batch detection speed is improved, data comparison is facilitated, and the labor and time cost is reduced.

The utility model discloses a convenient detection positioning's skin detector relates to skin detector technical field, including skin detection frame, protective outer cover and positioning cavity, the outside installation of skin detection frame has the protective outer cover, the positive surface of skin detection frame is equipped with the positioning cavity, the inside symmetry of positioning cavity installs fixed inner plate, the head positioning frame is installed in the telescopic end of arc positioning telescopic link. The utility model discloses through being provided with positioning detection subassembly in the inside of positioning cavity, arc positioning telescopic link work drive head positioning frame moves to the outside of cavity and carries out positioning to the both sides of the head of detection personnel, and the both sides accurate positioning of head positioning frame to the head of detection personnel helps to ensure that the spectral imaging sensor and the face skin of detection personnel keep proper distance and angle, improves the accuracy and reliability of detection, and accurate positioning and the adhesion degree help to complete the detection process quickly, improve overall detection efficiency.

The invention relates to the technical field of medical equipment, in particular to three-way centering vertical SPECT image scanning equipment and a using method thereof.The three-way centering vertical SPECT image scanning equipment comprises a base, a fixed arc-shaped frame, a rotating arc-shaped frame, a lifting seat, a first driving unit, a rotating frame, a second driving unit, a scanning probe rotating on the rotating frame, a driving part, a human body scanning unit and a main control unit; after the rotating arc-shaped frame rotates to be spliced with the fixed arc-shaped frame, a scanning detection area is formed between the rotating arc-shaped frame and the fixed arc-shaped frame, the lifting seat is arranged in the scanning detection area in a sliding mode, and the multiple sets of scanning probes are arranged towards the center of the scanning detection area. By judging the orientation of the standing position of the detected person, controlling the orientation of the scanning probe and cooperating with large-range rotating scanning of the scanning probe, the detection range is effectively ensured, detection dead angles are eliminated, and the effects of being large in detection range and more accurate in detection result are achieved.

This invention belongs to the field of aluminum wire bonding production technology, specifically relating to an automated drawing system for aluminum wire bonding production. The system includes a wire feeding device, a wire threading and drawing device, an intelligent wire storage device, a wire expansion and drawing device, and a wire take-up device arranged sequentially. The wire threading and drawing device performs initial diameter reduction and surface smoothing of the aluminum wire, and its internal oil supply structure effectively reduces friction damage during drawing. The intelligent wire storage device enables slow storage and release of the aluminum wire and automatic tension adjustment, ensuring that the operation of upstream and downstream processes does not interfere with each other. The wire expansion and drawing device uses a frustum-shaped expansion and drawing cylinder to perform secondary precise drawing and fine-tuning of the aluminum wire. The expansion strength detection component on the cylinder automatically adjusts the detection counterweight and rotational impact angle to perform real-time strength testing of the aluminum wire after drawing. This invention is rationally designed and can complete product quality sampling inspection of bonded aluminum wire without interrupting upstream production, thus improving the production efficiency of bonded aluminum wire.

This application belongs to the technical field of testing devices and discloses an ultrasonic testing device for pile foundations. The device includes a sleeve and a controller mounted on the top of the sleeve. An annular plate is mounted on the sleeve, and a telescopic tube is fixed between the annular plate and the sleeve. A testing component is mounted on the annular plate, comprising an ultrasonic generator and an ultrasonic receiver, both of which are located within the annular plate. Multiple clamping blocks are slidably disposed within the sleeve, and a displacement mechanism is provided on the sleeve. In this application, the sleeve and annular plate are fitted onto the pile foundation to be tested, with the inner top wall of the sleeve fitting against the top of the pile foundation. The displacement mechanism then drives the multiple clamping blocks to move towards the axis of the sleeve until they are tightly against the sidewall of the pile foundation. At this point, the pile foundation can be tested using the testing component. The device's stability is ensured without manual support during the testing process, making it convenient to use and reducing testing errors caused by vibration.

This invention belongs to the field of food sampling technology, specifically a food crushing and homogenizing machine and its control method. The food crushing and homogenizing machine provided by this invention includes: a base; several sets of first crushing and homogenizing components mounted on the base, each set of first crushing and homogenizing components including a first driver, a first cutter, and a first container, the output end of the first driver being connected to the first cutter, the first cutter being located inside the container; several sets of second crushing and homogenizing components mounted on the base, each second crushing and homogenizing component including a second cutter and a second container, the output end of a second motor being connected to the second cutter, the second cutter being located inside the second container; the capacity of the first container being greater than the capacity of the second container; and a control device electrically connected to each of the first and second crushing and homogenizing components. This invention can significantly improve the efficiency of food crushing and homogenizing.

The application provides a laser obstacle avoidance module, an automatic cleaning device and a system, comprising a support and a laser generator, the support is provided with a positioning structure, the positioning structure is in abutment with the laser generator to position the laser generator on the support. By arranging the positioning structure on the support and making the positioning structure in abutment with the laser generator, the laser generator can be accurately positioned on the support, and the position of the laser generator can be better fixed, so that the laser generator remains stable during work, reduces the deviation of the detection laser emission angle caused by position deviation and the like, effectively improves the accuracy of obstacle detection, reduces the probability of detection error, and further reduces the probability of collision between the cleaning device and the obstacle during use.

The invention belongs to the field of aviation part repair, and particularly relates to an intelligent screening and sorting method for aviation repair screw type small parts based on image recognition. The top camera, the side camera and the mechanical arm are used in cooperation, the bolts are dynamically recognized in a multi-angle mode, the top camera collects images when the bolts transversely fall on the working face, the images of the sizes and threads of the bolts can be effectively collected, and then the mechanical arm is used for clamping the bolts to the recognition area of the side camera; images of bolt head shapes, groove shapes and bolt tail marks can be effectively collected, so that the bolts can be recognized at multiple angles, and the problem of inaccurate recognition caused by bolt stacking and posture inclination is solved.

This application relates to the field of automotive air conditioning system technology and discloses an intelligent compensation device for a temperature sensor used in automotive air conditioning, including an air conditioning duct with a filter screen plate disposed on the inner side of the duct. This intelligent compensation device for a temperature sensor used in automotive air conditioning, through the coordinated operation of a filter screen plate, a driving component, a cleaning component, a temperature sensor body, a compensation resistor, and a controller, can both clean the filter screen plate through the combined action of the driving component and the cleaning component, preventing filter blockage from affecting airflow and temperature detection accuracy; and intelligently compensate for drift and errors in the temperature sensor body caused by extreme environments or long-term use using the compensation resistor and a controller storing compensation algorithms, effectively solving the problem of inaccurate temperature detection. Simultaneously, the two temperature sensor bodies effectively reduce detection errors, further improving the reliability of temperature detection and providing a more accurate basis for temperature compensation.

The utility model discloses an integrated machine lens HR detection fixture. The detection fixture includes: the cavity of one end open, a plurality of limiting portions and a plurality of positioning holes are detachably arranged on the bottom surface of the cavity, the limiting portion is detachably connected to the bottom surface of the cavity, and can move up and down along the vertical direction of the bottom surface, the limiting portion is used for limiting the displacement of the lens in the vertical direction of the bottom surface when the lens is placed on the bottom of the cavity through the positioning hole. The application solves the problem that different fixtures need to be used for single lens and ICR two states of the lens, which leads to inaccurate detection, and AA residual glue lenses cannot be detected.

The invention provides a shell screening device, and relates to the technical field of shell screening, and the device comprises a conveying mechanism which comprises a conveying base and a conveying belt; the detection mechanism comprises an orientation detection assembly and a flaw detection assembly which are located above the conveying belt and are used for detecting the placement orientation and the surface flaw condition of the shells respectively; the screening mechanism comprises at least one screening assembly arranged on one side of the conveying base and a discharging opening formed in the other side of the conveying base, and each screening assembly comprises a pushing driving piece and a pushing plate arranged at the output end of the pushing driving piece; when the orientation detection assembly and the defect detection assembly identify abnormal shells, the corresponding push driving part drives the push plate to move across the conveying belt, and the abnormal shells are pushed into the discharge port to be discharged. The shells with upward convex surfaces are preferentially removed through the orientation detection assembly and the screening mechanism, so that the interference of mixed colors on defect detection is reduced, and the detection efficiency is improved. The screening efficiency is improved.

This utility model relates to the field of electricity meter testing technology, and particularly to a testing component and testing equipment for testing product labels on electricity meters. The electricity meter has a product label on its surface, which includes a first information identifier and a second information identifier. The testing component includes a first detection element, a second detection element, and a control element. The first detection element detects and identifies the first information identifier and generates first detection information; the second detection element detects and identifies the second information identifier and generates second detection information; the control element receives the first and second detection information, and is capable of comparing the first and second detection information and outputting the comparison result. The testing equipment includes the above-described testing component. This testing component and equipment offer high testing accuracy and efficiency for electricity meters.

The invention relates to the technical field of laser measurement, and discloses an automatic leveling laser measuring instrument and a using method, the automatic leveling laser measuring instrument comprises a measuring instrument body and a plurality of laser generators arranged in the measuring instrument body, the bottom of the measuring instrument body is provided with a bottom seat, and the outer side wall of the bottom seat is provided with a plurality of telescopic adjusting bottom rod mechanisms which are circumferentially arranged; a plurality of mounting cavities perpendicular to one another are formed in the measuring instrument body, second rotating cavities are formed in the mounting cavities, reflector assemblies are rotationally arranged in the second rotating cavities, and a mounting cylinder is arranged at the top of the measuring instrument body. The laser generator is arranged in the first rotating cavity, original sliding friction of the laser generator is converted into rolling friction under the action of the balancing weight, laser emitted by the laser generator is made to face downwards vertically all the time, and the structure can guarantee that the measurement accuracy is high regardless of the inclination degree of the measurement instrument body. The direction of the laser emitted by the laser generator is not changed to be vertically downward, so that the detection error can be reduced.

The invention belongs to the technical field of detection, and particularly discloses a measurement uncertainty evaluation method for measuring immune factors in serum by an ELISA (enzyme-linked immuno sorbent assay) method. According to the method, ELISA detection is carried out on immune factors (such as IL-1beta) in serum of an experimental animal in contact with a medical instrument according to standards such as GB / T16886.20-2015, system analysis comprises nine types of uncertainty sources such as repeated detection, standard substance preparation and sample dilution, the standard uncertainty of each component is calculated through mathematical methods such as rectangular distribution and a least square method, and the standard uncertainty of each component is calculated according to the standard uncertainty. And synthesizing the standard uncertainty and calculating the expansion uncertainty, and finally outputting a standard detection result. The method comprehensively covers the uncertainty source, is rigorous in computational logic and clear in key quality control factors, provides a scientific and complete uncertainty evaluation scheme for medical instrument immunogenicity evaluation and immune factor determination in other experimental scenes, is beneficial to laboratory quality control and detection result optimization, and has wide practicability.

The application discloses a parking space detection method and related device, and relates to the technical field of intelligent driving, and comprises the following steps: acquiring a to-be-detected parking space image, generating a bird's-eye view feature map according to the to-be-detected parking space image, initializing semantic identities and initial position representations of a plurality of contour points by using a learnable query vector, sampling local features in the bird's-eye view feature map based on the initial position representations, interacting the local features with the query vector, generating corrected position representations of the plurality of contour points according to the query vector updated in the interaction process, returning the corrected position representations to the step of sampling the local features as the initial position representations, and until a preset iteration termination condition is met, taking the semantic identities and the last iterated corrected position representations of the plurality of contour points as a parking space detection result of the to-be-detected parking space. The application models a parking space edge as a plurality of contour points, and corrects position representations of the plurality of contour points through an iteration process, thereby realizing high-precision modeling of an arbitrary-morphology parking space.