66results about How to "Improve real reliability" patented technology

The invention provides a test platform of a drive system of an electric vehicle motor. The test platform comprises an industrial personal computer, a dynamometer system, a voltage / current sampling circuit, a torque / rotating speed sampling circuit and a power supply simulation system. When the test platform works, a road situation simulation system is used for reproducing real acceleration and deceleration conditions of vehicle driving; a load simulation, tracking, and controlling system based on model prediction control is used for realizing rapid response and precise tracking and controlling on load simulation by the dynamometer system; and then a performance analysis system is used for realizing comprehensive performance testing and analysis of the motor drive system. The test platform provided by the invention is capable of detecting the motor performance in real time to obtain data needed by drive motor studying and developing timely and effectively, so that the research and development time of the drive motor can be shortened. Therefore, the test platform plays an important role in leading standardized and information development of motor testing.

The invention relates to an mRNA fragmentation method and a method for constructing a sequencing library based on the mRNA fragmentation method. The mRNA fragmentation method provided by the invention employs forward and reverse bridge-type probes, realizes breakage of an mRNA sample through one-step reverse transcription and connection reaction, and introduces two terminal linkers during reverse transcription so as to obtain a cDNA library with linkers at two terminals. The cDNA library with the linkers at the two terminals can directly undergo cyclization reaction or undergo PCR amplification before cyclization reaction, so a sequencing library for single-stranded cyclic nucleic acids can be obtained; or a sequencing library for single-stranded nucleic acids can be obtained by directly subjecting the cDNA library to amplification. When the mRNA fragmentation method is applied to construction of the sequencing library, tedious steps like restoration of a tail terminal and arrangement of a linker on one end at first and another linker on the other end next in traditional construction of libraries can be omitted; experimental flow is greatly simplified; a library construction period is shortened; and library construction cost is greatly reduced.

The invention discloses an experimental system for the determination of white rat behavior, which is composed of two parts including a hardware device and a white rat video tracking determination system consisting of system hardware and system software, the hardware device comprises a box body, an animal movement case arranged within the box body, an illumination device arranged on the top of the box body and an outdoor air system connected with the box body; the system hardware comprises a video input unit, an image acquisition card and a computer, wherein, the video input unit is connected with the computer via a video line and is arranged on the top of the box body, the image acquisition card and the system software are installed on the computer, the system software comprises the following modules: image acquisition, trace tracking, background modeling, computation of characteristic data, and formatted display and storage of result. The experimental system implements the acquisition of behavior data of the white rat on conditions of low noise and low illumination, causing no disturbance for normal activity of the white rat and improving accuracy of experimental result; the invention, in combination with the white rat video tracking determination system, performs the determination flexibly and results from diversified test parameters.

The present invention discloses a mouse cage elastic supporting device vibration strain and amplitude calibration system and method. The mouse cage elastic supporting device vibration strain and amplitude calibration system comprises an excitation system connected with a simulation shaft and used for generating an excitation force and applying the generated excitation force on the simulation shaft; a test article installing rack used for installing the simulation shaft and a to-be-calibrated mouse cage elastic supporting device and transmitting the excitation force applied by the excitation system to the to-be-calibrated mouse cage elastic supporting device via the simulation shaft; and a monitoring system connected with the to-be-calibrated mouse cage elastic supporting device and used for recording the cage bar vibration strain and the bearing block outer ring amplitude of the to-be-calibrated mouse cage elastic supporting device under the excitation force. The mouse cage elastic supporting device vibration strain and amplitude calibration system and method of the present invention is simple to operate and convenient to assemble and disassemble, simulates the working state of the mouse cage elastic supporting device really, can be suitable for the strain and amplitude calibration of different types of mouse cage elastic supporting devices, avoids the situation that the mouse cage elastic supporting device is carried out the calibration test on a test bench, and enables a lot of manpower and material resource waste to be reduced.

The invention discloses a high temperature gas cooled reactor outside fitted ball passing detection method and a system having a self-diagnostic function. The method comprises the followings: respectively arranging a first detection coil and a second detection coil at the upstream and the downstream on the outer side of a pipeline, conducting sine alternate current excitation on the detection coils to generate mutual inductance between the detection coils and a fuel ball, extracting voltage signals U1 and U2 from the detection coils through a resonance bridge detection circuit, processing U1 and U2 through a signal processor to obtain a ball passing wave signal U0, comparing the ball passing wave form U0and converting the ball passing wave form U0 into a wave peak pulse UP1 and a wave trough pulse UP2, judging by a singlechip whether the fuel ball passes by according to the U0, UP1 and UP2, monitoring whether the detection coils, the signal processor and the singlechip all normally work, and outputting the judging result that whether the fuel ball passes by when the detection coils, the signal processor and the singlechip all work normally, otherwise, sending a piece of warning information. According to the method and the system, the pipeline is not broken, the interference is resisted, an alarm is made when a fault occurs, and the result of counting the balls passing by is guaranteed to be accurate and reliable.

Embodiments of the invention disclose a vehicle part data processing method and device for block chains, a computer device and a readable storage medium, and aims at enabling user systems to query reliable and real vehicle part data conveniently. The method comprises the following steps of: when part data of a target vehicle is obtained, judging whether the size of the part data of the target vehicle exceeds a threshold value or not; if the size exceeds the threshold value, generating index data for the part data of the target vehicle; storing the part data of the target vehicle in a target address in a part database; and recording and broadcasting identification information of the part data of the target vehicle according to a consensus mechanism, wherein the identification information comprises the index data and a data identifier corresponding to the part data of the target vehicle.

The invention provides a nested fluorescent PCR detection primer, a probe, a kit and a detection method of donkey-origin, horse-origin, swine-origin and bovine-origin in donkey-hide gelatin, and applications thereof, and relates to the technical field of molecular biology. Using combinations of the primer and probe of the invention as well as multiple nested fluorescent PCR detection kits can quickly detection the donkey-origin, horse-origin, swine-origin and bovine-origin components in donkey-hide gelatin. Aiming at microscale DNA or degradation DNA in donkey-hide gelatin, the nested fluorescent PCR detection primer, the probe, the kit and the detection method greatly increase the effective target spot identification rate of the primer and the probe by nested PCR and short PCR fragment technologies, thereby greatly increasing the detection accuracy and sensitivity; two steps of PCR amplifications are conducted within one system, thereby providing advantages such as closed pipe operation, low contamination possibility, high detection sensitivity, good specificity, high accuracy, great flux, etc.

The invention discloses a portable outdoor water sample taking and detecting device which comprises a motor, a pulley, a steel wire rope, a sampling bucket, a detection probe and a water level sensor.The device is simple in structure, the central shaft of the pulley is connected with the motor, the steel wire rope is positioned in the groove of the pulley, one end of the steel wire rope is connected with the sampling bucket; the detection probe is positioned in the sampling bucket, the pulley is driven to rotate by the motor, the steel wire rope rotates along with the pulley, the sampling bucket can be automatically released into a well, the sampling bucket can be submersed into water to take water samples because of the weight of the sampling bucket self, moreover, a part of indexes canbe detected once the detection probe is in contact with the water samples, the indexes can be transmitted to a mobile terminal or a remote server, and the water level in the sampling bucket can be monitored by using the water level sensor, so that the detection data truth and the reliability can be improved; through reverse rotation of the motor, the sampling bucket with the water samples can be automatically lifted outside the well through the steel wire rope, so that the working intensity can be greatly alleviated.

The invention belongs to the field of intellectual property conversion, and particularly relates to an intellectual property network security trading platform. The platform comprises a cloud server and a big data processing system, a buying unit, a selling unit, a trading platform, a third-party information release platform, a communication unit, a trading unit, an information release unit and a patent value assessment unit connected with the cloud server; and the big data processing system performs analytic processing on data in the cloud server. The platform is mainly used for solving the problems of high workload and long time due to inaccurate information or non-timely information acquisition during selling or buying by a selling user or a buying user; and the cloud server and the bigdata processing system are adopted to realize automatic processing of buying information and selling information, so that the interference of human factors is reduced, and the authenticity, accuracy and rapidity of intellectual property network trading are improved.

A multi-carrier ratioless code transmission method based on a generalized frequency division multiplexing technology comprises channel coding, multi-carrier transmission and channel decoding, and specifically comprises the steps as follows: the channel decoding is performed at a receiving end through the multi-carrier transmission after the channel coding is performed at a sending end. The method solves the problems that data with a higher priority are coded repeatedly and the decoding efficiency is lower in the prior art, the reliability of the unequal error protection transmission is improved, the decoding efficiency can reach 0.9564, and the value of the performance parameter Rho can reach 0.90. According to the method, under the condition that the spectrum utilization rate is improved and the out-of-band radiation is reduced, data are subjected to unequal error protection, and particularly when the data with the priority are transmitted reliably, the protection for the data with the priority cannot be weakened, and the reliability of simulation data is improved.

The invention relates to a detection method for formaldehyde in food. The detection method comprises the following steps: taking an appropriate amount of sample, adding ethyl alcohol, stirring, uniformly mixing through ultrasound manner, filtering, taking a filtrate, dropwise adding a precipitator into the filtrate, filtering, thus obtaining the filtrate which is the to-be-tested sample solution; weighting anhydrous sodium sulfite, adding distilled water, respectively placing into three colorimetric tubes for later use; adding the prepared to-be-tested sample solution and formaldehyde solution respectively into two of the thee colorimetric tubes, wherein the third colorimetric tube is taken as a blank comparison tube; dropwise adding 2-3 drops of phenolphthalein in the three test tubes, observing color change of the solutions, thus judging that whether the sample contains formaldehyde or the prepared to-be-tested sample solution, if the solution changes into amaranth, the sample contains formaldehyde. The detection method is simple and convenient, the detection time is short, the sample is pretreated before detection, and thus the reliability of the detection result is improved.

The invention discloses a driving active service system (DASS) testing and verification platform and a testing method thereof. The platform comprises a road testing system, an upper management center,a standardized DASS and a driving simulation platform, wherein the road testing system is used for actual performance testing on a testing field of a tested DASS; the driving simulation platform is consistent with the testing environment of the road testing system; the standardized DASS provides a testing standard for the driving simulation platform; the upper management center is used for building of the driving simulation platform driving environment, and storage, processing, analysis and evaluation of road and driving simulation testing results; and the testing data of the road testing system and the driving simulation platform are transmitted to the upper management center, and the upper management center processes and analyzes the stored information and obtains a testing result. Function verification and performance evaluation of the driving active service system can be studied, and besides, by using the platform, the influences of driving of an intelligent car mounted with the DASS on a mixed traffic flow can be studied and evaluated.

The invention discloses an enterprise purchase management computer network system. The enterprises are a purchasing party enterprise and a supplier party enterprise. The enterprise purchase managementcomputer system is connected with a public service network. The enterprise purchase management computer system is provided with a purchase party enterprise system in which purchasing management information Flex software is installed, a purchase party enterprise manager terminal and a supplier terminal. The enterprise purchase management computer network system realizes an open, fair and justice principle in purchase and greatly reduces the purchase cost of equipment, spare parts and material. Furthermore decision personnel can master the consumption condition of enterprise materials in time,thereby greatly improving transmission speed and accuracy of purchasing material information in the enterprise, generating a great promotion function for improving management level and economic benefit of the enterprise, and realizing certain use value and versatility. In configuration operation and online operation, advantages of relatively simple operation and high efficiency are realized.

The invention provides a multichannel video system on the basis of 1394b optical bus and a data collecting and transmitting method thereof, which belong to the technical field of the 1394b optical bus. The multichannel video system comprises a video collecting unit and a video transmitting unit, wherein the video collecting unit comprises a DSP (digital signal processing) chip, video decoding chips, a flash memory, a synchronous dynamic random access memory, a PCI (peripheral component interconnect) interface A and a JTAG (joint test action group) interface, and the video transmitting unit comprises a PowerPC (performance optimization with enhanced reduced instruction set computer-performance computing) module and a 1394b interface protocol module. An embedded microprocessor is utilized to acquire videos, relying on a master controlling computer is avoided, the load to the master controlling computer is lowered, and reliability of the system is improved. The specified DSP chip for video image is utilized, multiple video ports can be provided, so that multichannel videos are realized with a single chip, systematic resources are fully utilized, the circuit design is simplified, and the cost is lowered.

The invention discloses a novel fabricated transformation type anti-buckling energy dissipation support and a manufacturing technology. The anti-buckling energy dissipation support comprises a main core material, an assistant core material, a main structure, a limiting unit located on the peripherals of the main core material and the assistant core material, connecting plates and connecting boltsused for connecting the main core material and the assistant material, structural connecting plates and structural connecting bolts used for connecting a support main structure, a non-bond material and a compression material. The limiting unit comprises a casing pipe, covering plates and a grouting material. The main core material and the assistant core material are located in the casing pipe; installation covering plates at two ends of the casing pipe form a sealed cavity, and the grouting material is arranged in the sealed cavity in a filling mode; the main structure is located among four stretching structural connecting plates, and the four structural connecting plates and the main structure are fixed by the structural connecting bolts; the main core material and the assistant core material are connected by the connecting bolts; and the main core material, the assistant core material and the main structure are connected by the structural connecting bolts. The anti-buckling energy dissipation support has the advantages of being good in stretchability, free of residual stress and residual deformation to support core bearing components, and good in durability and anti-seismic property.

The invention provides an autism auxiliary evaluation system and method based on deep learning. The system comprises a data acquisition and feature extraction unit, a first neural network, a second neural network, a third neural network and a result output unit; the data acquisition and feature extraction unit and the result output unit are respectively connected with the first neural network, the second neural network and the third neural network, wherein the data acquisition and feature extraction unit is used for acquiring eye movement data of a subject watching a video to obtain a hotspot map, a focus map and a scanning path map; the first neural network inputs the hotspot map to obtain a first classification result; the second neural network inputs the focus image to obtain a second classification result; the third neural network inputs the scanning path map to obtain a third classification result; and the result output unit gathers the first classification result, the second classification result and the third classification result to obtain an autism detection result of the subject. According to the invention, the autism prediction efficiency and the autism prediction accuracy are improved.

The invention relates to the field of food safety, in particular to a rapid detection method for formaldehyde in food.The detection method comprises the following steps that an appropriate amount of crushed sample is added into ethanol to be stirred and mixed to be uniform, filtering is conducted, filtrate is taken, an appropriate amount of precipitating agent is added into the filtrate, filtering is conducted, filtrate is taken and serves as a sample solution to be detected, or a liquid reagent is directly taken to serve as a sample to be detected; anhydrous sodium sulfite, aminopyrin, EDTA-2Na, sodium hydroxide and phloroglucinol are weighed, distilled water is added to the materials, and the obtained mixture is put into three colorimetric tubes for use; the prepared sample solution to be detected and a formaldehyde solution are added to two colorimetric tubes respectively, the third colorimetric tube serves as a blank reference tube, solution color changes are observed, and if the solution color is changed into orange red, it is judged that the sample contains formaldehyde.According to the rapid detection method for formaldehyde in the food, operation is easy and convenient, detection is rapid, all reagents are prepared to be liquid, long-period preservation is promoted, pretreatment is conducted on the samples successively before detection is conducted, and the authenticity and reliability of a detection result are improved.

The invention discloses a remote inquisition system and method, comprising Internet webpage evidence collecting equipment, an encryption storage device, an electronic certificate authentication deviceand a forensic authentication end, wherein the Internet webpage evidence collecting equipment is unidirectionally connected with the encryption storage device, the encryption storage device is unidirectionally connected with the forensic authentication end, the Internet webpage evidence collecting equipment is bidirectionally connected with the forensic authentication end, the Internet webpage evidence collecting equipment transmits a data flow to the encryption storage device, the encryption storage device transmits a data flow to the forensic authentication end, and the forensic authentication end performs a real-time synchronization monitoring operation on the Internet webpage evidence collecting equipment. The remote inquisition system disclosed by the invention has the beneficial effects that an electronic certificate technology is utilized, and evidence collection operating personnel can be definite; the evidence collecting equipment performs automatic screenshot and videos while saving webpage data; and the forensic authentication end performing real-time monitoring on the webpage evidence collecting equipment reacquires the webpage data, and the forensic authentication endcompares the data acquired twice, so that data integrity is determined.

The invention discloses an electricity stealing user checking method based on correlation between user acquisition electric quantity and court line loss. The method comprises the following steps: firstly analyzing and determining an algorithm model of correlation between user acquisition electric quantity and court line loss, then selecting a sample, and marking the date with abnormal line loss in the sample according to the algorithm model; on the basis of the algorithm model, combining a 95% confidence interval and a multi-time weight evaluation method, carrying out calculation of correlation between user collection electric quantity and court line loss on data corresponding to the marked date in the selected sample, finally, determining the electricity stealing suspicion degrees of screened users to be high, medium and low suspicion degrees of users according to a calculation result, and checking users of high suspicion. According to the method, correlation analysis can be carried out on the collected electric quantity of all users in a court and the court line loss rate, the chief culprit causing high court line loss is accurately locked, the pain point of low-voltage court line loss treatment work is solved, anti-theft and illegal checking work is assisted, the line loss management level is efficiently improved, the low-voltage court line loss is practically reduced, and quality and efficiency are improved for power enterprises.

The invention provides a method for quickly retrieving restaurant reservations through a third-party platform and relates to the technical field of dinning. The problems that an existing reservation mode of a restaurant is single, dining table resources can not be fully used, supervision and restraint mechanisms are lacked, and the restaurant unavoidably provides false data for attracting more clients are solved. A platform service end, a user end and a restaurant service end are included. The platform service end includes a data management module, an order management module and a reputation management module. The user end includes a platform display module, an order generation module, an execution confirmation order module and a restaurant evaluation module. The restaurant service end includes an order receiving and processing module, an order feedback module and a user evaluation module. According to the dining method of the invention, a time-scheduled reservation queuing mode is used at the peak of meal, a diner can know the people flow and queuing situations of each time period of a target restaurant in advance and choose a relatively reasonable time period to eat in advance according to the condition of the diner, and the waste of time in queuing is avoided.

The invention discloses a method for detecting the concentration of carbon monoxide in air, and belongs to the technical field of air detection. The method comprises the following steps of: selectingan area to be detected, collecting air in the area to be detected at a first moment, and preprocessing the air to obtain the air to be detected; separating the carbon monoxide in the air to be detected by adopting a gas chromatographic method; introducing the separated carbon monoxide into a reaction device through a gas pipeline, and reacting the separated carbon monoxide with reactants under theaction of a catalyst to obtain a product; calculating the first concentration value of the carbon monoxide according to the product; repeating the steps mentioned above to obtain the second concentration value of the carbon monoxide in the area to be detected at a second moment; obtaining a deviation value according to the first concentration value and the second concentration value; and comparing the deviation value with a preset deviation value, and obtaining a detection result according to a preset strategy. The technical effects of ensuring the detection quality, improving the authenticity of detection data and reducing the detection pressure of personnel are achieved.

The invention relates to an accounting method based on a block chain, an accounting device based on the block chain, a computer readable storage medium and electronic equipment. The accounting methodin the embodiment of the invention is applied to a blockchain network taking a mobile terminal as a node. The accounting method comprises the following steps: storing transaction information to be accounting into a non-accounting transaction pool of a current node; when a preset block generation condition is satisfied, packaging the transaction information in the non-accounting transaction pool togenerate a current block; sending the current block to a transfer node in the blockchain network, and broadcasting the current block in the blockchain network through the transfer node so as to perform consensus authentication on the current block; and when the consensus authentication result of the current block is that the authentication is passed, storing the current block in the blockchain network. According to the accounting method in the embodiment of the invention, the accounting process is simplified, and the real reliability of the account book data can be improved.

The invention provides a donkey-derived and horse-derived nest-type fluorescent PCR detection primer in donkey-hide gelatin, a probe composition, a kit, a detection method and an application, which relates to the technical field of the molecular biology. Donkey-derived and horse-derived components in the donkey-hide gelatin can be rapidly determined by utilizing the primer, the probe composition and the multiple nest-type fluorescent PCR detection kit. For trace DNA or degraded DNA in the donkey-hide gelatin, by adopting a nest-type PCR and small-fragment amplification technology, the probability of effectively identifying a target spot by the primer and a probe is greatly improved, so that the detection accuracy and sensitivity can be greatly improved; and the two-step PCR amplification is carried out in the same system, so that the beneficial effects of closed-tube operation, low pollution rate, high detection sensitivity, good specificity, high accuracy and high flux can be achieved.

The invention discloses a scientific research cooperation system based on the maximum reproducibility of experiments and belongs to the global scientific research cooperation operation system field. The system includes a scientific research user terminal, a scientific research intermediary platform and a scientific research service platform; the scientific research user terminal includes a scientific research user sending module, a scientific research user receiving module and a scientific research user payment module; the scientific research intermediary platform includes an intermediary platform receiving unit, an intermediary platform feedback unit, an intermediary credibility evaluation unit, an intermediary fee collection and payment unit, an intermediary network storage unit, and a group of thesis submission platforms; and the scientific research service platform includes a scientific research service receiving unit, a scientific research result feedback unit, a scientific research service fee collection unit and a scientific research technology service unit. According to the scientific research cooperation system of the invention, scientific research ideas can be separated from scientific experiments, and experimental results are more real and reliable.

The invention relates to a method for detecting formaldehyde in food. The method comprises the following steps: first taking an appropriate amount of a sample, adding ethanol, stirring, ultrasonicallymixing, filtering, taking a filtrate, adding a precipitating agent, filtering and taking the filtrate as a sample solution to be detected; then weighing anhydrous sodium sulfite, adding distilled water, respectively placing the mixture in 3 colorimetric tubes for use; adding the prepared sample solution to be detected and a formaldehyde solution in the two colorimetric tubes respectively, using the third colorimetric tube as a blank control tube, adding 2-3 drops of phenolphthalein to the three test tubes, observing the solution color change to judge whether the sample contains formaldehyde or not to prepare the sample solution to be detected. If the color of the solution changes into purple red, the sample contains the formaldehyde. The method is simple, short in detection time and capable of improving the true reliability of a detection result due to the fact that the sample is preprocessed before and after the detection.

The invention relates to a finished product test system and method for automobile magnesium aluminum alloy hub production, the system comprises a bottom plate, support limiting devices and an extrusion test device, the middle part of the upper end surface of the bottom plate is uniformly provided with the support limiting devices, and the support limiting devices are provided with the extrusion test device in a sliding fit manner. The system can solve the problems that an existing magnesium-aluminum alloy hub testing system cannot test a plurality of magnesium-aluminum alloy hubs at the same time, the testing efficiency is low, the hubs cannot be limited, the testing result is deviated, and the accuracy of testing data is affected. The problems that the existing magnesium-aluminum alloy hub testing system cannot compare multiple sets of data by changing the extrusion force on the magnesium-aluminum alloy hub, the maximum pressure bearing capacity of the magnesium-aluminum alloy hub cannot be tested, and the testing result is contingency and low in reliability can be solved.

The invention discloses an infantile autism child behavior capturing system based on infrared thermal image tracking, and the system consists of an environment configuration system, an infrared thermal image tracking system and an infantile autism child behavior capturing system; the environment configuration system comprises a learning classroom, and the learning classroom is provided with teaching aids for the autistic children to use and a scene for simulating a normal class; the infrared thermal image tracking system is composed of system hardware and measuring software, and the system hardware comprises a computer, an infrared thermal imager, a first camera and a second camera. According to the autistic child behavior capturing system based on infrared thermal image tracking, the thermal infrared imager analyzes thermal images of a child to distinguish the front face and the back face of the child and feeds back the front face and the back face to the first camera and the second camera in real time, the accuracy of an experimental result is improved, a series of behavior analysis is carried out by shooting a large number of tracking videos, and reliable limb behavior data can be provided for early diagnosis of autism.

The invention provides an article anti-counterfeiting method based on multiple identifiers, an article anti-counterfeiting server, a client and an article anti-counterfeiting package. The article anti-counterfeiting method comprises the steps: generating a first identifier and a second identifier of an article with a package, wherein the first identifier and the second identifier are used for carrying out the identity verification and use condition verification of the article, and the first identifier can be obtained before the article is used, and the second identifier is in a hidden state before the article is used and is acquired after the article is used; associating the first identifier and the second identifier with identity information of an article; receiving a verification requestfor a second to-be-verified identifier of the target article, and searching for a second identifier matched with the second to-be-verified identifier and the use information of the corresponding article; and if the corresponding article is found, setting the use information of the corresponding article to be used. According to the scheme of the invention, the reliability of product anti-counterfeiting verification by a user can be effectively improved.

The embodiment of the invention provides a big data management method and device based on gridding management and electronic equipment. The method comprises the following steps: obtaining a video stream in a preset region, the preset region comprises a plurality of grid regions, and there is a hierarchical relation among the plurality of grid regions; frame-by-frame drawing processing is carried out on the video stream to obtain a drawing image, and the drawing image comprises a monitoring target; performing target recognition on a monitoring target in the drawing image, and extracting target information of the monitoring target, the target information which comprises target feature information, snapshot time information and snapshot place information of the monitoring target; counting statistical data of the monitoring target in each grid area based on a preset statistical rule according to the target information; and sending the statistical data of the monitoring targets in all the grid regions to a front-end page, and performing hierarchical visual display according to the hierarchical relationship of the grid regions. According to the embodiment of the invention, the real reliability of the statistical data of the grid region can be improved.