145results about How to "Improve counting efficiency" patented technology

The invention discloses an integrated chip system for high-throughput sorting and counting detection of biological particles, and an application. The chip system comprises a main microfluidic chip, a micropipe, a sample liquid micropump, an exchange liquid micropump, a first waste liquid collecting device, a second waste liquid collecting device, a third waste liquid collecting device, laser emitters, photoelectric conversion devices, optical fibers and a computer, wherein the main microfluidic chip comprises an asymmetric curved flow path, a first branch channel, a second branch channel, a third branch channel, a main flow path, a branch flow path, aligning marks, etc. The system utilizes the asymmetric curved flow path to realize pre-focusing and sorting for the particles, utilizes a liquid changing flow channel to realize change of a carrier liquid of to-be-tested particles and particle cleaning, and utilizes a viscoelastic effect and an inertial effect of a viscoelastic fluid to realize focus of single equilibrium position of section centers of the particles. The system does not need a sheath liquid, complex pre-cleaning of the particles, and optical alignment, has advantages of high speed, high precision, integration, miniaturization, automation, low cost, simple production process, easy batch production, etc.

A micro optical sensor of laser dust particle counter, which is characterized by its components, which comprises the following: there is cylinder mirror, spherical mirror and light trap located orderly in the direction of light beam of laser source components. The spherical mirror is located in the right side of the cylinder mirror and light-sensitive area and that of light-electricity detector are located on both sides around the sphere center of spherical mirror, which satisfies the image relationship of geometry optics; vision diaphragm which is suited for the shape of light sensitive-area is located in front of light-electricity detector; the light-electricity detector employs photoelectric diode of high sensitivity or micro photoelectric multiplier tube sealed with metal; A band pass preposition enlarging circuit is fixed in the shell of scatter body of optics sensor with the same width of pulse frequency of scattering light.

The invention discloses a solar silicon wafer and battery piece counting method based on image processing and belongs to the technical field of image processing. The method comprises the following steps that 101, side images of stacked silicon wafers or stacked battery pieces are preprocessed; 102, a measured object is positioned, and a mask is used for processing and limiting an operation region; 103, the images covered with the mask are replicated and subjected to different kinds of threshold processing respectively to obtain a denoised and binarized image; 104, the obtained denoised and binarized image is subjected to post-processing; 105, differential statistical counting and positioning are conducted to obtain the number of the measured stacked silicon wafers or the measured stacked battery pieces. According to the method, the side images of the stacked silicon wafers or the stacked battery pieces are collected, the binary image highlights gaps and filters out other interference noise, and finally a differential statistical algorithm is adopted to obtain the accurate number. By means of the method, the problem of inaccurate counting due to poor quality of the obtained image and high noise is solved, and the counting accuracy and efficiency are improved.

The invention discloses an optical sensor of a novel high-output all-semiconductor dust particle counter. An aspherical mirror, an entrance lens screen, an exit lens screen and a light trapping are arranged in sequence in the heading direction of the light beam sent out by a semiconductor laser light source, a spherical reflector, a lens screen and a photodetector are arranged in the direction perpendicular to the light path, and the photosensitive area and the photosensitive surface of the photodetector are respectively positioned at the two sides of the center of the spherical reflector and satisfy the object-image relationship in the geometrical optics, wherein the light source is a high-power semiconductor laser light source, the photodetector is a photodiode, and a gain adjustable preamplification circuit is arranged on the shell behind the photodetector. The invention improves the counting efficiency, and raises the counting efficiency and the particle size resolution of the instruments. Besides, the invention has the advantages of long service life of the instruments, good exchangeability of the instruments, low power consumption and low cost; moreover, the optical sensor has small size, which is beneficial to the micromation of the complete device.

The invention provides a flow type high-precision and high-speed automatic counting device for particle matters based on machine vision. The flow type high-precision and high-speed automatic counting device adopts a flow line for automatically counting and detecting the particle matters, and the flow line comprises a camera unit, a microprocessor, a feed mechanism, a pouring mechanism, a rotating mechanism and a slight shock mechanism, wherein the microprocessor comprises an image reading module, an image processing module, an automatic counting module, a majority voting module, a result output module, a production line control module and a human-computer module. The automatic counting device for the particle matters, provided by the invention, is high in detection efficiency, excellent in distinguishing and counting precision, wide in adaptive scope of detection objects, and high in self-leaning capacity and improvement capacity.

The invention discloses a rope skipping counting method and device and a computer storage medium, and relates to the field of artificial intelligence. The rope skipping counting method comprises the steps of obtaining a rope skipping video; detecting a plurality of key limb parts in the first frame of image in the rope skipping video through a human body key point detection model, and outputting athermodynamic diagram corresponding to the key limb parts; setting the coordinate of the position with the maximum thermodynamic value in each thermodynamic diagram as a first key point coordinate; obtaining a plurality of second key point coordinates of each key limb part in a plurality of second frame images in the rope skipping video, wherein the second key point coordinates are obtained by tracking the previous frame image through a tracking algorithm or through a human body key point detection model; and associating all the first key point coordinates and all the second key point coordinates with the height change caused by each rope skipping action to obtain rope skipping counting data. Statistical efficiency is not reduced while rope skipping counting accuracy can be improved through the human body key point detection model in combination with a tracking algorithm.

The embodiment of the invention is suitable for the technical field of computers, and discloses a fluorescent cell counting method and device, terminal equipment and a computer readable storage medium. The method comprises the following steps: obtaining a to-be-counted fluorescent image which comprises at least one cell subjected to immunofluorescence staining; carrying out binarization processingon the fluorescence image to obtain a binarized image; recognizing a cell region in the binarized image according to a preset cell area parameter; and counting the number of fluorescent cells in thefluorescent image based on the cell region. According to the embodiment of the invention, the fluorescent image is directly converted into the binarized image, the cell region in the binarized image is automatically recognized, and the number of the fluorescent cells is counted based on the self-cell region, so that the counting steps are reduced, the cell region is automatically recognized and counted, the counting efficiency and counting accuracy are improved, and the operation is simple and convenient.

The invention discloses a method for counting silicon wafers based on machine vision and image processing, and belongs to the technical field of image processing. The method comprises the steps of 101, preprocessing on side images of stacked silicon wafers or battery pieces; 102, positioning a measured object, and processing and limiting an operation region by a mask; 103, replicating the images covered with the mask, performing different kinds of threshold processing respectively to obtain a denoised and binarized image; 104, performing post-processing on the obtained denoised and binarized image; and 105, conducting differential statistical counting and positioning to solve the number of the stacked silicon wafers or battery pieces. According to the method, the side images of the stacked solar silicon wafers or battery pieces are collected, the binary image is enabled to highlight gaps and filter out other interference noises, and finally a differential statistical algorithm is adopted to solve the accurate number. By means of the method, a problem of inaccurate counting due to poor quality of the obtained image and high noise is solved, and the counting accuracy and efficiency are improved.

The invention discloses a crowd counting model and method based on structured knowledge distillation. The method comprises the steps: S1, obtaining a crowd image, and generating a corresponding real crowd density map through the marked information; s2, inputting different crowd images into a teacher network of a heavy magnitude for pre-training by multiple iterations, extracting features of each layer, and generating an estimated crowd density map; s3, inputting the crowd image into a lightweight student network, extracting features of each layer, and generating an estimated crowd density map;s4, calculating unary knowledge similarity and paired knowledge correlation coefficients of the corresponding student network and teacher network features; s5, calculating the loss through the unitary knowledge similarity, the paired knowledge correlation coefficients and the crowd density graphs, and updating the parameters of the student network; and S6, iteratively carrying out training processes of S1 and S3-S5 for multiple times by utilizing different crowd images until a stop condition is met.

The invention discloses a high-flow dust particle counting sensor with a novel photosensitive area structure. An aspherical mirror, an incident diaphragm, an emergent diaphragm and a light trap are arranged in sequence in the advancing direction of light beams emitted from a high-power semiconductor laser source; a spherical reflector, a field diaphragm and a photoelectric detector are arranged in the direction vertical to a light path; the photosensitive area and the photosensitive surface of the photoelectric detector are respectively positioned at two sides of the sphere center of the spherical reflector and satisfy the geometric object image relationship; a gas circuit system consists of a sampling nozzle and an outlet nozzle; the caliber of the sampling nozzle is smaller than that of the outlet nozzle; and the sampling nozzle and the outlet nozzle are arranged unsymmetrically with respect to the photosensitive area. The high-flow dust particle counting sensor has the advantages of simple structure, small volume, high counting efficiency and high particle diameter resolution ratio and can realize correct and efficient detection on the samples of high-flow dust particles not lower than 50L / min.

The invention discloses a double-edge-triggered Gray code counter. A modulo-N counter is formed by combining N+1 groups of triggers. Each group of trigger mainly comprises two latches with different controlled conditions and an additional logic circuit, and has forward output and backward output, wherein the backward output is a half cycle ahead of the forward output. The first group of trigger outputs the CNT[0]th bit of the counter, the Nth group of trigger outputs the CNT[N-1]th bit of the counter, and the output of the (N+1)th group of trigger serves as the input of the first group of trigger. The input of a second group of trigger is obtained by NOR gate operation over the backward output of the first group of trigger and the CNT[N+1]th bit. The input of an Mth stage is obtained by performing NAND gate operation on the backward output of the CNT[0]th bit and the forward output of the CNT[M-2]th to CNT[1]st bits and on the backward output of the CNT[0]th bit and the backward output of an (N+1)th stage and then performing the NOR gate operation on the output subjected to the NAND gate operation and the backward output of the trigger of an (M-1)th stage.

The invention discloses an automatic counting device which comprises a machine frame, a feeding mechanism, a control cabinet, a conveying mechanism, a discharging mechanism and a boxing mechanism. The conveying mechanism comprises a conveying belt which is divided into four small paths at intervals in the longitudinal direction of the conveying belt. The discharging mechanism comprises four discharging hoppers corresponding to the four small paths of the conveying belt. The boxing mechanism comprises four charging boxes, a charging box transfer guide rail and a transfer driving part. A sensor is arranged on the inner wall of the upper portion of each charging box. The charging box transfer guide rail comprises a charging support and four through grooves formed in the charging support. The transfer driving part comprises four gears corresponding to the four through grooves, and motors driving the corresponding gears to rotate. A long-strip-shaped rack parallel to the through grooves is formed in the middle of the bottom surface of each charging box. The charging boxes abut against the charging support, and the racks are engaged with the gears. The automatic counting device is high in counting efficiency, and counted products can be boxed according to a preset number and transferred.

The invention discloses an automatic counting machine for beverage bottle caps. The automatic counting machine comprises a bottle cap feeding device equipped with a feeding track, wherein, an outlet of the feeding track is equipped with a magnetic separation conveyor for separately conveying single bottle caps; an outlet of the magnetic separation conveyor is connected with a blanking track which is bent downward; and a counter is arranged on the blanking track. The automatic counting machine has the advantages of simple structure and high counting efficiency and is simple and convenient to operate; the magnetic separation conveyor can effectively and accurately convey single bottle caps in a separate manner; and the automatic counting machine can be used for counting new non-deformed bottle caps and recovered old bottle caps which are irregularly deformed and are attached with aluminum caps, tinfoil and other sundries. Therefore, the automatic counting machine also has the advantages of wide application range and high accuracy.

The invention belongs to the technical field of environment monitoring. The invention relates to a counter, in particular to a two-stage refrigeration particulate matter condensation growth counter. The device comprises an inlet, an evaporation chamber, a steam cooling heat insulator, a condensation chamber section I, a condensation heat insulator, a condensation chamber section II, a nozzle and alight scattering counter which are connected in sequence, an outlet of the light scattering counter is connected with a flow limiting hole through a hose, the flow limiting hole is connected with a three-way connector A through a hose, and a three-way connector B is connected with an air pump through a hose; the pressure measuring device is respectively connected with the three-way connector C, the evaporation chamber and the condensation chamber through hoses; and the temperature measuring device is respectively connected with the evaporation chamber, the condensation chamber I section and the condensation chamber II section through circuits. According to the invention, the flow of particulate matters can be increased, so that the number of the particulate matters passing through the optical detector is increased, the activation area of the particulate matters is enlarged, the detection efficiency of an instrument on small particulate matters is improved, the original series structure of two different working solutions is changed into an independent CPC, and the single-stage detection of 1-3 nano particulate matters is realized.

The invention discloses a mine trolley loading and unloading intelligent counting monitoring system and method. The system comprises a weighing module which is disposed on a rail in a haulage roadway and is used for detecting the weights of a trolley before and after loading and unloading, an underground controller module used for acquiring the trolley weight uploaded by the weighing module, a communication network module anda ground controller module which is arranged in a dispatching room; the ground controller module is used for acquiring the weight of the trolley through the communication network module, judging whether the trolley is fully loaded based on the weights of the trolley before loading and unloading, judging whether the trolley completes loading and unloading based on the weight change of the trolley before and after loading and unloading, and counting one times of effective loading and unloading if judging that the trolley is fully loaded and loading and completes unloading. By processing and analyzing the weight of the trolley collected by the weighing module, the loading and unloading effectiveness of the trolley is judged, and counting is automatically carried out, so that manpower is saved, the counting efficiency and accuracy of the trolley are improved, and the situations of wrong report, missed report and the like are avoided.

The invention discloses a fry counting Internet of Things device and a fry condition statistical method, and belongs to the technical field of Internet of Things. The Internet of Things equipment comprises a box body and a power supply box, and also comprises a remotely connected statistical unit; the power supply box supplies power to the box body, an acquisition unit, an identification unit and a control unit are arranged on the box body, and the acquisition unit is arranged at the bottom in the box body and used for containing fry to be detected; the recognition unit is arranged at the top in the box body and is used for shooting the fry in the collection unit; the control unit is connected with the identification unit and is used for controlling the identification unit to work, acquiring fish fry images shot by the identification unit and outputting processing results of the statistical unit; and the statistical unit is a remote server, is connected with the control unit through the internet, and is used for processing the fry images and obtaining the number of live fries, the number of dead fries and the fry cycle. The Internet-of-things equipment is designed to achieve real-time collection of fry images, Internet transmission and deep learning and recognition of fries.

A single-photon detection suppression circuit based on rapid current induction comprises an avalanche photodiode which is connected with an output end through a current source induction module, a connecting point of the avalanche photodiode and the current source induction module is connected with the output end through a reset switch, and the current source induction module is connected with the reset switch through a suppression switch. Voltage added to the avalanche photodiode is the sum of avalanche voltage VB and additional voltage VEX, when a photon reaches, the avalanche photodiode (APD) generates avalanche currents rapidly, the current source induction module induces increasing of the currents and then sends a signal to enable the suppression switch to be turned on, at the moment, voltage of the two ends of the APD is lower than avalanche breakdown voltage, so that avalanche is stopped, and the output end generates an electric pulse. The electric pulse reaches the reset switch after a period of time delay, so that the circuit returns to the initial state of receiving the photon.

The invention relates to an intelligent multifunctional handheld card counting device which comprises a master control unit arranged in a casing, wherein an intelligent voice reading unit, a display unit, a key exchange unit and a power supply management unit are connected onto the master control unit. The intelligent handheld multifunctional card counting device further comprises an optical sensor connected with the master control unit through a signal conditioning unit. The intelligent voice reading unit comprises a voice management chip and a loudspeaker connected with the master control unit through the voice management chip. The intelligent multifunctional handheld card counting device is based on the VCSEL technology and utilizes the novel VCSEL sensor, and therefore, adaptability to dimensions, colors and location places of detected objects is improved. Furthermore, the intelligent multifunctional handheld card counting device has an intelligent reading function, the number of cards can be read by two languages, a colorful display screen is adopted, and therefore, the intelligent multifunctional handheld card counting device can count cards efficiently and accurately in a wider industry field.

The invention discloses a counter for a gas meter. The counter comprises a counter base and a counting wheel stand which are mutually clamped and fixedly connected with each other, and a counting wheel train comprising a change gear pair and a transition gear pair, wherein a driving change gear forms the input end of the wheel train; a driven change gear is tightly matched with a driving transition gear by virtue of a convex ring section formed in the middle of the driving transition gear; the driven change gear forms coaxial fixed connection by virtue of the driving transition gear and is rotationally matched with an internal section of a supporting shaft; the driving transition gear is positioned on an external section of the supporting shaft; a driven change gear limiting shaft shoulder is formed on the inner side of a matching section of the supporting shaft; a raised shoulder for preventing the driving transition gear from retreating is formed at the front end of the matching section of the supporting shaft; and the driven transition gear is connected with a first-stage counting wheel of the counting wheel group by virtue of worm-gears. The counter for the gas meter disclosed by the invention has the beneficial effects that the structure is simple, the counting wheel stand is convenient to mount and detach, the motion precision of the counting wheel train is high, the counter is accurate in counting, and hidden danger of manually adjusting the counting numerical value is avoided.

The invention relates to the technology of fishery breeding equipment, and aims to provide a high-throughput fry online counting device and method. The device comprises a fish fry observation channel, camera shooting equipment, a supporting frame and a fish fry temporary storage track. A water outlet is formed in the starting end of the fish fry temporary storage track; the fish fry observation channel is obliquely fixed to the middle of the supporting frame and connected with the fry temporary storage rail through a bent rail. The tail end of the fish fry observation channel is connected to the fish fry outlet section which is located on the lower portion of the supporting frame. The top of the fish fry temporary storage track is open, and the tops of the bent track, the fish fry observation channel and the fish fry outlet section are all in a closed state. Fry separation is carried out through the smooth bent rails and the slope channels, the fry passing speed is increased, the fry flux in unit time can be increased by several times, and scratching damage to fries is reduced; real-time online continuous counting of large-batch fries can be realized, the fry counting efficiency is improved, and the influence of false detection and missing detection on the counting accuracy is effectively reduced.

The invention discloses a counting transmission wheel train for a gas meter counter. The counting transmission wheel train comprises a change gear pair and a transition gear pair. A driving change gear forms the input end of the wheel train, and a driven change gear is in tight fit with a driving transition gear through a protruding ring section formed in the middle of the driving transition gear of the transition gear pair. The driven change gear and the driving transition gear are coaxially connected and are arranged on a supporting shaft in a running fit mode through an inner hole in the driving transition gear. The driven change gear and the driving transition gear are located on the inner section and the outer section of the supporting shaft respectively. A shaft shoulder for axial limiting of the driven change gear is formed on the inner side of the fit section of the supporting shaft. A protruding shoulder for preventing exiting of the driving transition gear is formed at the far end of the fit section of the supporting shaft. A driven transition gear is coaxially and fixedly connected with a worm. A worm wheel meshed with the worm is coaxially and fixedly connected with a first character wheel of a counting character wheel set. The counting transmission wheel train has the advantages that the structure is simple, the counting wheel train movement precision is high, counting of the counter is accurate, and the hidden danger that the counting number is manually adjusted is avoided.

Embodiments of the invention disclose a parallel counter, a server and a counting method. The parallel counter used for counting business services is arranged in the server; each counting module of the parallel counter has a corresponding storage position used for storing an original count value of the counting module; and if the first counting module receives a first thread, the first counting module can obtain the original count value of the first counting module from the corresponding storage position, and change the original count value according to a counting demand carried by the first thread. The parallel counter can obtain count values for the business services only by performing summation statistics on the original count values of the counting modules through a summation module. Each counting module in the parallel counter can independently finish the count value change for the counting demand in the received thread, so that the parallel counter can realize parallel counting of multiple threads through at least two counting modules, and the counting efficiency is improved.

The invention relates to the technology of fishery breeding equipment, and aims to provide a fry counting device and method based on machine vision detection and tracking. The device comprises a camera device used for collecting and analyzing pictures or video data and a computer terminal, and a lens of the camera device is aligned with an observation cabin through which fries pass; the fry separation module, the observation cabin and the fish collection container are sequentially connected through water pipes, and the space between a conical funnel and an angle adjusting valve is divided into continuous spiral channels through an annular partition plate in the fry separation module. The device can automatically disperse fish fries, effectively avoids accumulation and adhesion of the fish fries, reduces the fish fry detection and tracking difficulty, and effectively guarantees the counting precision; meanwhile, the observation cabin isolates external light source interference, the bottom of the square tube is white, continuous shooting, detection, tracking and counting are achieved, and the counting efficiency is improved; by continuously detecting and tracking the fry, the influence of fry migration on the counting precision is eliminated, and the counting precision is effectively improved.

The invention discloses a continuous casting billet surface pit defect identification and statistics method, which adopts 3D vision to identify pits and depths of the pits in a continuous casting billet polishing process so as to realize automatic statistics of the number of the pits. On the one hand, the method can replace manual on-site pit identification statistics, save labor cost, eliminate safety risks and improve on-site safety indexes; on the other hand, continuous real-time identification statistics can be realized, the counting efficiency is improved, the acquired data is more comprehensive and specific, and data support is provided for continuous casting process improvement.

The invention relates to a round tablet counting device, in particular to a round tablet counting device for the pharmacy department. According to the round tablet counting device for the pharmacy department, collection is convenient after counting, and tablets fall off more thoroughly in the pouring-out process. The round tablet counting device for the pharmacy department comprises a first supporting frame and a second supporting frame, and the second supporting frame is connected to the rear side of the first supporting frame. According to the round tablet counting device, a feeding assembly is arranged, the feeding assembly is matched with a counting assembly, the counting assembly can rapidly count the tablets on the feeding assembly, and therefore the tablet counting efficiency can be greatly improved; and through cooperation of a loading assembly and the feeding assembly, the feeding assembly can be rapidly filled with the tablets through the loading assembly, and then manpower consumption can be greatly reduced.

The invention relates to a counting discharging machine capable of avoiding carton scratching and universal for cartons of different sizes, and belongs to the technical field of carton processing equipment. The counting discharging machine comprises a rack, a first conveying belt and conveying rollers, wherein the rack is composed of a left machine body wallboard, a right machine body wallboard, a front metal plate protection cover and a rear metal plate protection cover, the first conveying belt is arranged at the front end of the rack, and the conveying rollers are arranged at the tail end of the rack. The structure is simple, the working principle is clear, the whole machine is composed of a shaping part and a counting discharging part, the shaping part can finish stacking and arranging of the multiple cartons, and the counting discharging part can conduct accurate calculating and counting and tidy discharging. In addition, the problem that the surfaces of the cartons are abraded in the counting process is solved, counting is accurate, the carton counting efficiency is effectively improved, and the attractive performance of the cartons is effectively guaranteed.

The invention discloses a picture head counting method and device based on a convolutional neural network. The method is a crowd counting technology based on a single-column feature fusion convolutional neural network, and the network solves crowd counting difficulties such as crowd occlusion to a certain extent. According to the network, basic features are obtained through a front-end network including the first ten layers of VGG16, multi-scale features are obtained through a middle-end network including small-scale convolution layers, and a crowd density map is obtained through a rear-end network including cavity convolution layers with different void rates. Finally, accumulation is carried out according to the integral of the crowd density map to obtain the number of people. Experiments show that in a general crowd density scene, the precision of the method is superior to that of an existing known method.

The invention provides a time-resolved fluorescence measuring system based on a multichannel TCSPC and multiple detectors. The time-resolved fluorescence measuring system comprises a laser light source, a beam split component, the plurality of photon detectors and the single photon counter, wherein the laser light source is used for emitting high-frequency pulse laser to excite a sample to emit fluorescence; the beam split component is used for splitting the fluorescence of different wavelengths in a space; the photon detectors are arranged at different positions; the single photon counter hasmore than two channels. The time-resolved fluorescence measuring system has the advantages that the photoelectric pulse signal detected by each photon detector is transmitted to the multiple channelsof the single photon counter through different circuits connecting the detectors, and the number of the photon detectors is determined according to the time, reaching the different channels, of photoelectric pulse signals; the system uses the multiple detectors, and the utilization efficiency of the counters can be greatly increased to reach the maximum.

The embodiment of the invention discloses a method and a system for counting the number of skewers at a mobile device end based on object detection. The system comprises a mobile device photographingdevice, an inputting module for phones obtained by collecting an image, a target detection and identification module, a number calculating module of skewers and a counting result output module. The embodiment of the invention is based on an object detection algorithm in artificial intelligence, Some depth neural network structures are used to extract features from the images, and automatic labeling of each tag is accomplished. A large number of training data is used to improve the accuracy of the test to 98% or more, which reduces the manual counting manpower dissipation and improves the counting efficiency and accuracy of bamboo swab in Chuanchuanxiang hotpot shops.

The invention discloses a truck counting method based on radio frequency identification. The truck counting method comprises the steps that step one, an electronic tag is arranged on an access vehicle, and a counting module and a storage unit are integrated in the electronic tag; step two, when a weighing system identifies that weight of the vehicle exceeds the weight limit value, a first trigger signal is generated, or a second trigger signal is generated; step three, when the first trigger signal is generated and the cumulative value is an even number, accumulative counting is performed by the counting module, and when the second trigger signal is generated, accumulative counting is not performed by the counting module; step four, when the vehicle enters the access port and the second trigger signal is generated and the cumulative value is an odd number, accumulative counting is performed by the counting module, and when the first trigger signal is generated, accumulative subtraction is performed by the counting module; and when the cumulative value is the even number and the vehicle enters the access port, the counting module does not actuate. The technical problem of low vehicle counting efficiency is solved so that counting accuracy is enhanced.