Abstract:In order to distinguish the color discrepancy of the same color class, the method of detection based on spectrophotometer and support vector machine is proposed. First, spectrophotometer is utilized to obtain the CIE chromaticity coordinates of each point in the glasses and other optical data for establishing data sample set. Then selecting the feature parameters and establishing the training set are used for creating SVM model. Followed, the different types of kernel functions and parameters are compared to choose the best, so that they make the model optimizing. Finally, the model is used to work on the prediction set, which detecting and distinguishing the dissimilarity. The experimental results show that this method can be efficiently and accurately detected the discrepancy of color of the glass.

Abstract:A novel planar circular reconfigurable antenna with six switchable lobe patterns is proposed. The antenna was fabricated on a FR4 epoxy substrate with radius of 60 mm and relative dielectric constant of 4.4, and has a compact structure located symmetrically in xoy plane. The proposed antenna is of low profile, low cost and small volume, and has an available impedance bandwidth of 2.35~2.51 GHz, which can be applied in the systems of Wibro, Bluetooth, ZigBee and wireless local area networks (WLAN). By changing the connections between the radiators and feed, six reconfigurable lobe patterns are achieved. Combining rapid switchable control system of switches, the patterns can be scanned in xoy plane. Meanwhile, a good agreement between measured and expected results is obtained.

Abstract:The MPPT technology is used a lot in the photovoltaic power generation system, but there are some shortcomings and deficiencies in practical application, such as tracking not fast enough and sometimes oscillation problems. Considering PV system exists to tracking slow and oscillating problems during MPPT, on the analysis of the perturbation and observation method and the hysteresis comparison method we proposes a new MPPT control method which combines the advantages of the two methods and makes the system control technology better. And by comparison with the traditional simulation of disturbance observation method, it verifies that the new method can track the maximum power point quickly, and when the sunshine, temperature changes can effectively reduce the oscillation at the maximum power point of the photovoltaic cell, and verify the correctness and validity of the method.

Abstract:Antenna gain is an important parameter in weather radar equation and has a direct influence on accuracy of reflectivity measurement. This paper analyzes the feasibility of antenna gain measurement for weather radar using the sun as a signal source, and introduces relevant principles and methods. Then it measures antenna gain of a Cband mobile China new generation radar (CINRAD) by the sun and analyzes error sources as well as methods to improve measurement accuracy. Observation experiment shows that antenna gain measured using the sun is close to factory test result while measurement accuracy requires further improvement. Therefore, the sun can be used to monitor variation of antenna gain in the operational weather radar network regularly, which is helpful for identifying and diagnosing breakdowns in antenna pointing, feeder line loss and receiver in weather radar system as early as possible.

Abstract:Brushless DC motor drive circuit is an important part of rotary steering system. High temperature work condition bring higher request of the temperature rise control of motor drive circuit. This article designs a high temperature resistant motor drive circuit based on Silicon carbide (SiC) MOSFET and analyses the cause factors of temperature rise from a general design perspective and analyses the security working characteristics of SiC MOSFET in deeply combined with the motor designing and the setting system’s working situation. Experimental results show that this circuit has characteristics of high temperature resistance, low temperature rise, high reliability and has used in rotary steering system successfully. In particular it provides technical references and depends in high temperature motor drive circuit designing.

Abstract:The paper designs a signlephase electric ACDC conversion，with controller chip TMS320F28335，active power factor controller UCC28019 as a core of the system，The power factor measurement circuit,output over protection circuit，power factor adjustment circuit were designed.Test results show that when input AC voltage is 24 V and output current is 2 A,the system can output 36 V voltage stably.Its load regulation rate less than or equal to 05%，when input AC voltage from 20 to 30 V,Voltage regulation rate SUis not more than 0.5%,the maximum error of power factor is 0.03，System have overcurrent protection function，overcurrent protection operating is 2.52 A, power factor is up to 0.99.

Abstract:In this paper, aim at the problem of the large torque ripple of motor, a novel topology structure of permanent magnet squarewave motor based on two stage matrix converter is proposed, which uses double closedloop control. By detecting the stator terminal voltage to determine the duration of the PWM modulation strategy, the PWM modulation strategy is proposed, which can be accurately determined at low speed or high speed, The control strategy realizes the direct AC to AC control of the permanent magnet squarewave motor and makes the input power factor close to 1, and the current energy flow is bidirectional. The MATLAB simulation results show that the output current of the motor is close to the rectangular wave, the torque ripple is suppressed, the speed tracking is accurated, and the correctness and effectiveness of the proposed control strategy is verified.

Abstract:In AC speed regulation system, slip frequency always change. There is still a lag in the adjustment of the speed of AC speed regulation. This makes it difficult to realize the precise control of slip frequency. PID algorithm is a good control algorithm for variable control. But the parameters of the ordinary PID control algorithm are a set of fixed values. In control precision and sensitivity, it can not adapt to the changes of the system. This paper introduces an expert PID control algorithm.Expert knowledge base is set up, the expert control strategy is used to automatically modify the PID parameters and control strategy.It makes system to adapt to different working conditions.

Abstract:It is a big problem to determine the droop coefficient when using the droop method. The droop coefficient is small and dynamic response speed is slow; increasing the droop coefficient can improve the dynamic response, but the amplitude of the frequency and the voltage can deviate significantly from the setting value, resulting in the instability of the system, so it is difficult to reconcile the contradictions. This paper presents the droop control strategy of piecewise hysteresis, instead of a sag curve with three sag curve, using this method can not only solve the problem of dynamic response but also can increase the power output range and keep the output of the voltage amplitude and frequency not changing too much. Finally let the subsection hysteresis droop control strategy compared with the traditional droop control strategy, the comparison results prove the feasibility and superiority of this strategy.

Abstract:Filter bank based multicarrier technique is one of pivotal techniques of 5G. Compare to traditional modulation, Filter bank based multicarrier technique has some advantages including performing without CP and lower sidelobe. This technique is still developing. There are twoclasses of modulated filter banks, FBMC filter the signal at the level of frame on the basis of IFFT. So the important thing is reasonable design of processing fame signal by filter banks.

Abstract:To meet the demand of the direction finding receivermeasuring two radar signals,two different radar signals arriving simultaneously andhaving different bandwidths.Proposes a dualchannel multistage channelized receiver,it has high efficient digital receiver structure. The receiver uses two bandwidths;two types of channels are arranged in the form of parity, threestage channel structure. It may provide a variety of frequency resolution after three band division. It may adapt to the different bandwidth input signal. Compared with the singlestage channel scheme, it improves the processing capacity of two different radar signals arriving simultaneously andhaving different bandwidths. And through the effective channel detection mechanism, it can receive two different radar signals arriving simultaneously and having different bandwidths. The simulation results illustrated the validity of the dualchannel multistage channelized receiver.

Abstract:The significance is increasing efficiency and saving energy for segmenting the long primary linear motor into blocks. As the research object, the electromagnetic calculation model of the segmented long primary linear induction motor is established by using the finite element method (FEM), and the electromagnetic force computation of the motor is then derived from the virtual work method. The starting, operating and stalling process have been studied by ANSOFT, and the thrust, position and velocity curve are obtained coupled with the electromagnetic field distribution inside the motor. Finally, the change tendency of starting thrust is analyzed by using the FEM of Maxwell 2D, which is along with the variation of the air gap size, the interval of the primary and the starting position. The obtained calculation method can provide useful help for the optimal design and manufacture of the segmented long primary linear induction motor.

Abstract:Atmospheric refraction errors significantly affect the accuracy of the exterior trajectory measurement in the range, especially for low elevation angle and distant targets. Based on characteristics of marine meteorological in the range and real test data of years, and the empirical formula of error correction for atmospheric refraction, we deduce specific refractive error correction model. Through a number of real experiment test, we conclude that the correction accuracy of the distance is less than 0.5 m, and the elevation angle less than 5 s. The model is simple, applied directly, and easy to calculate. The correction output matches the accuracy requirement of measurement of the exterior trajectory in the range, and thus can be applied to realtime data processing.

Abstract:In this paper,a fusion of singular value decomposition and clustering algorithm named SVD biKmeans collaborative filtering (SBKCF) is proposed, in order to solve the scalability and sparsity problems in user based collaborative filtering system. The algorithm adopts improved Pearson similarity metric formula to measure similarity between users, and clustering those users which have been dimension reducted, then generates the recommendation list through the nearest neighbor cluster of users. Experimental results show that the proposed algorithm can effectively accomplish the mission of personalized recommendation and solve the scalability and sparsity problems in userbased collaborative filtering system.

Abstract:With the expansion of the power system, the timedelay of control signal generated in the widearea environment will produce a negative effects that can not be neglected for the stable operation of power system. Based on Lyapunov stability theory, the design problems of widearea power system state feedback controller with timedelay was studied in this paper. Firstly, by constructing a Lyapunov Krasovskii functional, using matrix resolution method, we derive a matrix inequality structure based on the nonlinear. Then, transforming the nonlinear matrix inequality into linear matrix inequality, it is converted to a cone complementarity problem subjecting to linear matrix inequality and solved by iteration, the timedelay upper bounds and the iteration times is balanced by optimization iIterative algorithm. Finally, simulation results indicated that the controller derived in the paper has less conservatism and faster speed, and better project practicality.

Abstract:For dual source CT image with contrast media, due to heart soft tissue density andcontrast media uneven distribution result in the CT value of heart tissues uneven and boundary fuzzy, taking a single image segmentation algorithm is too difficult to obtain satisfactory results, so morphological reconstruction and random walks hybrid method is proposed in this paper.Firstly，we used morphological reconstruction operation on image smoothing filtering,which makes the heart cavity gray information convergence and gray level differences with the surrounding tissue and get the left atrium area with the fuzzy boundary;Then the random walks algorithm sets the seed points for each region of the image, and gives the weight of each side, and takes the weight of the edge as the transfer probability. For each unlabeled point is calculated from the point of first arrival probability of seed points.Finally, according to the first hit probability to choose the maximum that a class as belonging to the class, attribute of the unlabeled points and finally get the accurate left atrial.

Abstract:Conventional dispensing devices are typically semiautomation equipments, and the dispensing valve is driven by manually dispensing position and dispensing path, but the equipments are unable to adapt to some products which have certain dimensional tolerances, and the production efficiency can not reach the desired level. In order to compensate for the defects, the vision technology is applied to the measurement of dispensing position, and the automatic dispensing system which depends on the vision technology to obtain the dispensing position is designed. The program is edited by Visual C #, the images of the film are analyzed by eVision and the starting coordinate is obtained by Image preprocessing and morphological operation. Experimental results show that the dispensing accuracy of the system is up to 0.014 mm and the repeat accuracy is controlled within 0.012 mm, so the dispensing technology largely solves the problem of poor stability and low dispensing precision.

Abstract:A new thresholding function which is used in image denoising is proposed in this paper to solve the problems existed in the traditional wavelet thresholding functions. Compared with the traditional hardthresholding function and softthresholding function, the new thresholding function overcomes the shortcoming of uncontinuity of hardthresholding function and remains the continuity of softthresholding function as well as decreases the invariable dispersion in the soft thresholding function. The new thresholding function is simple in expression and has a high order derivative, it is suitable to do some kinds of mathematical disposals. The simulation results for image show that this method has better denoising effect and higher practical value than the traditional hard and softthresholding methods and soft and hard thresholding compromised methods.

Abstract:This paper introduces the design and key technologies of Sband and Xband dualpolarized T/R module，T/R module has two kinds of transmitting channel and receiving channel wave band，each ransmitting channel and receiving channel each have two passage，totally has eight passage. Multichannel transceiver of multiple bands in a small space work arising from the complexity of the channel and the resulting electromagnetic compatibility design and deat dissipation interfering analyzed and explained，while adding Lange bridge on each band transmission channel，so that the phase of each band of two ransmitting channels of 90° displacement，the component can realize the dual polarization transmission. Test result enunciation should the T/R have double waveband，big power transmitting，dualpolarized and the physical volume small characteristic.

Abstract:Focused on the issue that the integrated position system was made of WiFi positioning system and strapdown inertial navigation system was very complex and difficult to implement in engineering, a new reducedorder ten d state variables integrated positioning system of a simple micro inertial measurement unit(MIMU)which was composed of the low precision micro inertial sensors and WiFi was proposed. The simple installation structure of MIMU was designed by one low precision micro gyroscope and two low precision micro accelerometer inertial sensor pieces, then it was combined with WiFi location system and Kalman filtering technology was applied to integrated navigation positioning algorithm. The simulation results show that the proposed reducedorder integrated positioning system positioning calculation dimension reduction reduces computational complexity and makes it easy to complement in engineering, meanwhile effectively improves the downhole positioning accuracy, which can be effectively applied to the underground personnel positioning problem.

Abstract:To strengthen the security of campus construction, an intelligent fire monitoring system is designed. The wireless sensor network (WSN) is built using the latest ZigBee technology to perceive and transmit data. the real alarm abnormal signal is realized through GSM technology; The safe campus intelligent fire monitoring platform is designed based on VB and the Android technology.The data acquisition, data transmission, data display, data processing, and other functions are organic integrated in order to realize the integration of the monitoring, fire alarm. System greatly improves the reliability of data collection and transmission.The problem abnormal data of automatic identification is also solved, and the technical support for abnormal data report to the police was provided. System development for safe campus intelligent fire monitoring system provides a whole solution, the test shows that system has high reliability and easy operation.It will have broad prospect of application in the campus security system.

Abstract:Frequency modulated continuous wave (FMCW) radar is widely used in target measurement system, and the radar signal processing is the key to determine the accuracy of measurement.In this paper, a linear frequency modulation continuous wave (LFMCW) radar signal processing system based on DSP is designed to measure the target distance and realtive speed. And the system uses triangle wave modulation of linear frequency modulation continuous wave radar signal as transmitted signal. The basic structure and principle of LFMCW radar are discnssed in order to solve the only using fast Fourier transform (FFT) algorithm and the contradiction between the frequency resolution and the calculation time, improve the measurement efficiency of system，focuses on the signal processing algorithms of the radar signal processing systemFFT and ChirpZ transform(CZT) of the joint algorithm (FFT/CZT algorithm) to achieve, and analyzed the FFT/CZT algorithm by MATLAB simulation at the same time.The analysis results show that the FFT/CZT algorithm can significantly improve the efficiency and precision of the radar signal processing.

Abstract:With the wide application of embedded devices in the field of measurement, how to ensure the stable and reliable power supply of the measuring instruments in the absence of a fixed power has become a pressing problem in development of embedded devices. Given this issue, this paper proposes a long battery life, small size, stable performance, strong commonality of power management system. Firstly the power management system based on MCU STC12C2052AD hardware design framework is introduced. Then based on this design framework, the working principle of each module and its implementation method is analyzed. Finally, the software implementation process of the system is presented and the system test is conducted. The test results indicate that the design of this embedded devices of power management system could satisfy the design requirements and provide a good solution for the system design.

Abstract:In recent years the power harmonic pollution is increasingly serious, precise and realtime harmonic detection can provide a important reference for the harmonic control. TMS320F2812 DSP is a chip with powerful data processing capability and control function. In this paper, using the DSP chip as the core controller and making full use of the chip resources, a power harmonic detection system with high precision is designed. The ADC calibration based on hardware&software aspects and synchronized sampling based on software phaselocked of Capture unit(CAP) improve the precision of the system. Besides, This paper presents the key hardware circuits and software codes. The experimental results show that this system can realizes realtime accurate detection, as well as synchronized display and control, to the harmonic amplitude and phase.

Abstract:As the permanent magnet synchronous linear motor system is running dynamic parameter uncertainties and load disturbances exist such issues, the traditional PID controller can not meet the requirements of high precision servo control system. This design of an optimal PID controller based on genetic algorithm (GA), and through Simulink permanent magnet synchronous linear motor control system modeling and simulation. The simulation and experimental results show that the genetic algorithm (GA) optimization of PID controller and traditional PID controller at the specified speed and load disturbance conditions, compared with better dynamic stability and tracking performance, can effectively inhibit parameter perturbation impact and load disturbance has strong robustness, The results also demonstrate the effectiveness and feasibility of the program.

Abstract:With the development of economy and the speeding up of our life, the number of cars in China is increasing year by year, which followed by the traffic accidents. In order to avoid the occurrence of traffic accidents, an ultrasonic proximity alarm device was designed in this paper. This system take MSP430G2553, a 16 bit controller of TI, as the controller. The ultrasonic transmitting circuit was formed by 74LS04 and MAX232. CX20106A was the core component of the ultrasonic receiving circuit. The measuring range of this device was between 17 cm~8 m, which is accurate and reliable. This system could be used on not only cars, but also the crane arm and guide apparatus, which can guarantee our safety.

Abstract:For people in the life of the measurement system of temperature and humidity of the new requirements, such as rapid response speed, high precision, high integration and so on. In order to meet the needs of the modern user's function and performance requirements, a temperature and humidity detection system based on STM32 and CAN bus protocol is proposed. The system realizes realtime and efficient transmission of data through CAN bus. Finally, the accuracy of the whole system is tested,the accuracy of the temperature reaches ±0.3℃, and humidity reaches ±2%RH. The test results show that the system has high accuracy and stable performance and it also can be quickly and efficiently.

Abstract:On height of about 18 m and inner diameter of 100 mm of a cold riser experimental apparatus, the measurement accuracy of the HDLDG06 powder flowmeter was studied based on the particle circulation measured by volumetric meathod. The results show that the measurement accuracy of the flowmeter has little relationship with the particle circulation strength in the riser, while it has direct relationship with the crosssectional average concentration of the particle in the riser. When the sectional average concentration of the particle is less than 6.9 kg/m3, the powder flowmeter has quite a good measurement accuracy. While the sectional average concentration of the particle is more than 6.9 kg/m3, the powder flowmeter has quite a poor measurement accuracy.According to the experimental data, correction expression and its using condition isestablished for the HDLDG06 powder flowmeter applied to the riser.

Abstract:Based on the crane in service as application object, this paper presents crane running data detection software system based on VB6.0 serial communication technology. The sensors distributed on crane running motors are realtime monitored by the software. Current and voltage signal can be acquired through the wireless serial communication, realizing test data acquisition and the background analysis function. The test results indicate that the software can obtain accurately the running data of crane motors, and realtime display dynamic curve, providing a convenient and high efficient method of data collection technology for crane testing.

Abstract:In view of the huge domestic outfit design services such as indoor 3 D display, the design platform of 3D rich media furnishing is produced, combined with the internet 3d technology. Boolean operation of efficient and stable is used. The web server is used to verify something. Demonstrated in the experiments,the design platform has the characteristics of designing a thin client, creating internet applications, showing fine 3D media. It can be used in the design of domestic outfit and drilling teaching.

Abstract:signal processing based on mud pulse is one key of technologies of MWD system. In this paper, the characteristics of mud pulse channel and its noise is analyzed, signal filtering model and identification model is established, one signal processing method consists of wavelet transform, correlation filtering, pattern, recognition and clustering is given for mud pulse signal data processing under bad working environment, which avoid to limitations of bad realtime performance and bad influence from the threshold Field test results show that the method can decode down hole measurement data effectively and improve the signal recognition rate and realtime performance.

Abstract:With the increasing of transportation demand,the traffic congestion is rising, the state of oversaturated intersection become more and more frequent, and the economic loss are also more and more serious.In view of this situation,The paper introduces the idea of the interative learning and fuzzy logic to design traffic signal controller.According to the concept of queue length balanced controlling,this control stategy can handle the uncertainty by fuzzy logic, also can adapt itself to the changing traffic flow by interative learning,and achieve the equilibrium of queue length and make full use of green time at last. The simulation results show the effectiveness of this method.

Abstract:In order to eliminate the outliers in the realtime observation data thus to enhance the precision of the following process, this article, by giving a thorough analysis to the characters of both the realtime observation data and the outliers within them, proposes a selfadaptive fivepoint linear prediction data detection method. Tests based on simulated and observed data show, comparing with prediction and fixed threshold methods, that the proposed method could increase detecting rate of the outliers by 30% while remarkably reduce the false alarm rate, which verifies that the proposed method prevails the traditional methods in the matter of whether reliability or effectiveness, bears fairly strong stability and can effectively eliminate both isolate and continual outliers.

Abstract:In this paper, the dynamic current (IDDT) of CMOS circuit is studied, and a preprocessing method for IDDT is proposed. the fault characteristics are obtained from the standard deviation and the skewness of the IDDT. This paper uses CMOS NAND gate circuit simulation, the method of wavelet transformation pretreatment methods were compared, and combined with the probabilistic neural network classification method of fault diagnosis. The simulation results demonstrate the effectiveness of the proposed method based on the IDDT standard deviation and the skewness of the method, and the average correct rate of the fault diagnosis of the transistor bridge fault, the open circuit fault and the transistor parameters is 90.7%.

Abstract:A technique for material density microware detecting is introduced in this paper. Using a microwave resonant technique, by detecting the change of resonant frequency and the attenuation of microwave magnitude, the density of the material in the microware cavity resonator can be measured. Measurement principle, calibration technique and measurement process are mainly discussed. The calibration process is emphatically illustrated, that is, the resonant frequency of the cavity resonator is approached by using frequency sweep method, and some formulae are deduced. After data analysis and process of the experiment, the formula for the density of the material in the microware cavity resonator is given. The error of this technique for microware density detecting can satisfy the design requirement.

Abstract:Our country traditional method for the autopassing phasesplitter device of electrical locomotive is manual detection, this method exists some shortcomings of low efficiency, no scientific test, less amount of data, great influenced by artificial factors, unable to be scientific and systematic analysis. In order to solve this problem, studying a online state inspecting system for the autopassing phasesplitter automatic device, is of great practical significance. By simulating the working state of locomotive passing the phase splitter, detecting the changing process of orbital current, judge whether the autopassing phasesplitter device can work normally. This paper expounds the working principle of the detection system in detail, introduces the overall architecture of the system, the functions, the features and the results of the system are analyzed.

Abstract:The article dedicated to detect the position of the mine hold inside the brake master cylinder block and the existence of sand holes or not. Due to the cylinder block compensation hole deviating from the cylinder center axis, so there may be a large error in the machining process, and because the shape of brake cylinder is complex thus how to accurately detect compensation hole position was a big difficulty. Find the zero line by displacement sensors and detection by CCD, process the date by computer, every part work around efficient rotary table.

Abstract:More and more tire pressure monitoring devices had been added to vehicle control system, which makes a great contribution to reduce traffic accident. However, most of existing tire pressure detection devices was built in the tire, and it is difficult to repair. At present, only new cars have tire pressure monitoring system, old cars need tire pressure detection system too. In view of the defects of the tire pressure monitoring system and the requirement of the old car to the tire pressure monitoring system, an external pressure monitoring system was designed in this paper. The system was divided into two parts, the detection device and the monitoring device. The detection device is based on the BMP180, a tire pressure detection chip of BOSCH, and it takes the low power Bluetooth chip DA14580 as the controller. The monitoring device takes STM32L152RBT6 as the controller, and the DA14580 is the Bluetooth transmission chip. This system can realize the characteristics of tire pressure, tire temperature realtime monitoring and risk warning, with high reliability, low cost and so on.

Abstract:To overcome the problem of low accuracy of traditional methods in the area of college student mobile learning strategy classification, a new classification model based on principal component analysis (PCA) and Elman neural network is proposed. First, dimensionality reduction was done to the obtained original data of student mobile learning strategies using PCA and 5 principal components were extracted to create a new feature sample matrix. Then the Elman neural network was trained and its generalization performance was tested. The simulation results indicate that: the classification accuracy of the single BPNN is 70.0%, the one of the single Elman model is 80.0% and the one of the PCAElman model is 100.0%; the PCAElman model can simplify the structure of the single Elman network, improve the training speed, classification accuracy and generalization performance; the effectiveness of the recommended model is proved.

Abstract:In this paper, focus on the complexity of weighing data in the dynamic detection system of the highway, the different weighing data processing methods to make a comparison, and proposed the use of RBF neural network to deal with the dynamic weighing data. Firstly review introduced the whole vehicle dynamic system, after the radial basis function network topology and the centers of the radial basis function selection are introduced. Finally the testbed to build a testing platform, through experiments with a two axle vehicle with different speed through the test stand, the dynamic parameters acquisition. Finally, using the data collected, using MATLAB to simulate, verify the radial basis function network to the dynamic weighing data processing show good speed and accuracy.

Abstract:Internet of vehicles is a typical application of IOT in the field of intelligent transportation system, which plays an important role in the development of the intelligent logistics transportation system. Based on the existing intelligent transportation simulation platform, a new logistics internet of vehicles demonstration platform based on wireless network has been designed and implemented in the dissertation, which uses of modular design concept to design and research on the application layer of the logistics internet of vehicles demonstration platform, the designed system can realize the network data reception, motorcade realtime positioning and control, traffic lights intelligent monitoring, scene realtime simulation and other functions, finally achieves the intelligent logistics transportation. Experiments show that the system has good stability, high realtime performance, simple operation, and can meet the needs of the logistics internet of vehicles demonstration platform.