43results about How to "Real-time dynamic monitoring" patented technology

The invention relates to an ADS-B (automatic dependent surveillance - broadcast) autonomous anti-false object spoofing method. The ADS-B is based on a GNSS (global navigation satellite system), ground-air data links and other advanced techniques, and is a novel ground-air surveillance system which is being globally popularized by ICAO (international civil aviation organization). Because of the opening and sharing characteristics of working frequency, signal format and communication protocol of the ADS-B, the application of the system will be easily subject to artificial malicious spoofing and attack by wireless amateurs or illegal persons, a false target is formed, the management of ATC (air traffic control) areas is disordered, the normal aviation flight order is seriously disturbed, and the severe hidden hazards on safety are caused. The system comprises an ADS-B ground base station host, an anti-false target processing auxiliary machine, an BD / GPS (Beidou global positioning system) antenna, an ADS-B receiving antenna, an anti-false target direction measuring antenna, a PC (personal computer) (optional), an BD / GPS satellite, and an aircraft.

The application relates to the examining field of gene mutation and particularly relates to a PCR micro droplet kit for examining human EGFR gene mutation. The kit includes a nucleic acid amplification reagent; a reference substance and micro droplet PCR generated oil. The nucleic acid amplification reagent includes a primer and a probe for examining the No. 18 extron mutant, a primer and a probe for examining the No. 19 extron mutant, a primer and a probe for examining the No. 20 extron mutant, and a primer and a probe for examining the No. 21 extron mutant. The present application can be used for examining the seven species of the No. 18, 19, 20, and 21 extron mutants for the EGFR genes in the DNAs extracted from the paraffin-embedded pathology tissue slices and the peripheral blood dissociate DNAs. The present application provides a reference for the patients to choose the tumor molecularly targeted drug remedy and monitor. The present invention has absolute ration, high specificity, accuracy and high sensitivity.

The invention provides a test bench used for measuring a radial bearing work clearance and a method thereof. One end of a shaft coupling of the test bench is connected to a left end of a rotating shaft, and the other end is connected to a driving motor. A fulcrum 1 and a fulcrum 2 are used for supporting the rotating shaft to rotate. A detected fulcrum is placed in a central section of the rotating shaft and is fixed to an intermediate support seat. The intermediate support seat is located at a middle position of a left support seat and a right support seat. A hydraulic cylinder is installed on an upper surface of the intermediate support seat and is placed right below the detected fulcrum. Through hydraulic loading, radial loading to the detected fulcrum is realized. Three eddy current sensors are used for measuring and representing an inner and outer ring vertical radial displacement of a roller bearing, and calculating a radial work clearance of the roller bearing. The test bench is used for realizing vertical radial work clearance measurement of the roller bearing. The test bench and the method have advantages that a radial work clearance during a bearing rotation process can be measured; measurement is accurate and reliable; an experiment apparatus can realize the radial bearing work clearance measurement; and real-time dynamic monitoring is achieved and precision is high.

The invention discloses a method for automatic cruise detection of comprehensive information of greenhouses. According to the method, an optimal cruise path can be set according to the needs of different greenhouse soil bin structures and greenhouse comprehensive information acquisition, the precision of cruise is guaranteed through ultrasound position detection, a detection target is located based on laser sensing, and power is timely supplemented to a mobile platform through an automatic charging device during cruise intervals. Thus, continuous-cruise dynamic monitoring on greenhouse environment and crop information is realized, the detection efficiency and accuracy are improved, and an unmanned management mode is realized. The method of the invention can be applied to detection of greenhouse environment and crop growth information.

The invention discloses a device for measuring danks surface gas adsorption and danks desorption curves. The device comprises a super constant temperature box, a gas path system and a monitoring system, wherein the gas path system comprises a high-pressure to-be-measured gas cylinder, a vacuum pump, a helium gas cylinder and an adsorption tank; the monitoring system comprises an inlet end high-precision gas mass flow meter, a system pressure sensor which are arranged at the gas inlet end of the adsorption tank, and a temperature sensor and an outlet end high-precision gas mass flow meter which are arranged at the gas outlet end of the adsorption tank; the monitoring system is externally connected to a computer; the adsorption tank and the temperature sensor are arranged in the super constant temperature box. According to the device for measuring danks surface gas adsorption and danks desorption curves, the automatic collection and recording of methane desorption data can be realized, the measurement accuracy is greatly improved, and through calculation of the computer, the accuracy is improved, and the methane adsorption / desorption dynamic process can be accurately reflected.

The invention provides a method and equipment system for in situ dynamic monitoring of a wetland plant root system and relates to the technical field of plant physiology and ecology engineering. The method includes steps of performing root system grading according to root system parameters obtained through digital processing of root system images of modeling wetland plants by root system analyzing software and obtaining a corresponding biomass model through curve fitting according to different grades of the root system parameters; performing root system grading according to root system parameters obtained through digital processing of root system images of to-be-tested wetland plants by the root system analyzing software and obtaining real time root system biomass by substituting the real time parameters into the biomass model of the corresponding grade. By adopting the method for model establishing and evaluating of biomass of plant root systems, shortcomings of poor continuity, damage to plants and complicated operation and the like of a conventional method can be overcome. The method provided by the invention is proved to have characteristics of being accurate, efficient, simple, convenient, being capable of realizing automatic and continuous monitoring and the like.

The invention discloses a system for automatic collection and management of farmland experimental data. The system comprises: a presentation layer, which is used to receive requests or instructions that a user submit or issued through a browser and to call a business logic processing module corresponding to a business logic layer by processing the user's requests so as to achieve interaction with the business logic layer, and is also used to encapsulate data into a data model; a business logic layer, which is used to respond to and process the user service requests from the presentation layer and to return the process results to the presentation layer so as to present the user, and is the link between the presentation layer and a data layer; the data layer, which is used to receive the process results of the business logic layer, is responsible for data storage and retrieval and provides the data to the business logic layer, wherein the business logic layer feeds the data back to the presentation layer in response to the user's requests. The invention realizes the functions of collecting, querying, statistically processing, analyzing, inputting and outputting the farmland experimental data and also managing and sharing the collected test data uniformly.

The invention discloses a side slope micro-deformation monitoring method and a side slope micro-deformation monitoring system based on similarity determination criterion, wherein the monitoring method includes the following steps: (1) image collection and synchronous uploading: collecting and uploading side slope surface images in a monitored zone, wherein the monitored zone is divided into K to-be-analyzed zones; (2) imaging receiving and synchronous processing: performing synchronous treatment to the received side slope surface images, including: (201) performing side slope surface image treatment at the initial sampling time and calculating the similarity of the side slope surface image at this time; (202) performing side slope surface image treatment at the next sampling time, and calculating the similarity of the side slope surface image at this time; and (203) determining whether the micro-deformation exists or not. The monitoring system includes K digital projectors, K image photographing devices, an image collection device and an image processing device. The method and the system are reasonable in design, are convenient to achieve, are good in use effect, and can be used for performing simple, real-time and accurate monitoring the side slope micro-deformation.

The present invention relates to a concrete gravity dangerous dam and dam break risk measurement method, belonging to the field of water conservancy projects. The method comprises the steps of: employing a sound wave tomography detection technology to perform detection of a concrete gravity dangerous dam, namely employing the sound wave tomography technology to perform comprehensive detection of the dangerous dam, determining the worst dangerous section of a dam body, providing and establishing a dynamic modulus parameter for power measurement and stability evaluation of concrete gravity dangerous dam and dam break risks on this basis, utilizing the parameter to monitor the worst dangerous section change rule of the gravity-type dangerous dam in a condition of reservoir water level change,and utilizing a unit power damaging rate and a unit time damaging rata to comprehensively evaluate and analyze the change rule of the dynamic modulus of the dangerous section so as to evaluate and predict the dynamic stability and endurance of the concrete gravity dangerous dam.

The invention relates to an on-line detection method for the specific migration rate of bisphenol A in a food contact material. The method comprises the following steps: 1) adding a series of standard bisphenol A solutions into migration apparatuses for separate determination of light absorption values and establishing an equation for a standard curve; 2) measuring a certain volume of water-based food analogues, separately pouring the water-based food analogues into the migration apparatuses for the food contact material, cutting a certain area of the food contact material and soaking the food contact material in the water-based food analogues so as to obtain food analogue solutions; and 3) regularly determining the absorbance of the food analogues and calculating the concentrations of bisphenol A in the food analogues according to the standard curve established in the step 1). The invention further relates to an automatic detection system using the on-line detection method.

The invention provides a multi-parameter and three-dimensional monitoring method for a reservoir bank of a water-level-fluctuating zone. The multi-parameter and three-dimensional monitoring method comprises the following steps: setting monitoring lines in a rock-soil mass to be monitored; acquiring lateral displacement data and angle data which are transmitted between a displacement sensor and an angle sensor in each monitoring point; drawing a three-dimensional picture showing initial locations of all the monitoring points according to the location of each monitoring point under an initial state, obtaining the displacement offset of each monitoring point according to the acquired lateral displacement data and angle data, and drawing a three-dimensional picture showing locations of all the monitoring points at the same time; comparing three-dimensional pictures showing locations of all the monitoring points at different time to evaluate the stability of the rock-soil mass to be monitored. The multi-parameter and three-dimensional monitoring method has the advantages that through monitoring of horizontal displacement and an inclined angle of a landslide mass, three-dimensional monitoring on the landslide mass can be realized.

The invention discloses a circuit breaker vibration monitor system based on optical fiber sensors. The circuit breaker vibration monitor system based on the optical fiber sensors comprises a plurality of optical fiber grating vibration sensors installed on a circuit breaker and a switching value detection module installed on an output contactor of the circuit breaker, wherein the optical fiber grating vibration sensors are sequentially connected with an optical fiber grating demodulation instrument, a signal conditioning module and an A / D (analog to digital) conversion module, the A / D conversion module and the switching value detection module are respectively connected with isolation unit modules, and the isolation unit modules are sequentially connected with a digital signal processor and an upper computer. The invention further discloses a monitor method of the circuit breaker vibration monitor system based on the optical fiber sensors. The monitor method of the circuit breaker vibration monitor system based on the optical fiber sensors includes steps: installing the optical fiber grating vibration sensors on multiple positions of the circuit breaker, collecting vibration signals of the circuit breaker, then processing the signals, transmitting the signals to the upper computer, and thereby confirming the optimum installation positions of the optical fiber grating vibration sensors and achieving machinery status monitoring for the circuit breaker. The circuit breaker vibration monitor system and the circuit breaker vibration monitor method based on the optical fiber sensors achieve real time vibration monitoring for the circuit breaker in running.

The invention relates to magnetorheological suspension sedimentation characteristic measurement, and especially relates to a capacitance monitoring device and monitoring method for a magnetorheological suspension sedimentation process. The capacitance monitoring device for the magnetorheological suspension sedimentation process comprises a magnetorheological suspension inlet (1), a base (2), an inner cylinder (3), an outer cylinder (4), a capacitor conductor pole plate (6), and a capacitance value measuring apparatus and a data processing apparatus; the inner cylinder (3) and the outer cylinder (4) are in cylindrical form and placed concentrically, in order to form a hollow circular column, the cylinder which is formed by the inner cylinder (3) and the outer cylinder (4) is arranged on the base (2), and the bottom part of a gap formed between the inner cylinder (3) and the outer cylinder (4) is arranged at a magnetorheological suspension inlet (1); multiple pairs of capacitor conductor pole plates (6) are coated on outer side of the inner cylinder (3) and the inner side of the outer cylinder (4) along the height direction of a hollow circular column, in order to form multiple capacitors, and a pair of capacitor conductor pole plates (6) at the same height are opposite; the capacitance value measuring apparatus and the data processing apparatus are connected.

The invention relates to an anti-interference dynamic distance measuring method and a dynamic accumulated water monitoring method. Before data acquisition, the scene complexity is analyzed through thenumber of echo pulses and the echo intensity, and self-adaption of a measurement environment and interference filtering are realized; in the distance measuring process, interference signals of the acquired data are eliminated by utilizing the echo intensity or the difference between the number of the echo pulses and the number of the echo pulses of the current measurement environment; and the legality of the data is guaranteed through sudden change limitation of the data; and interference noise is dynamically monitored in real time, noise thresholds with different echo intensities and different time periods are dynamically set to remove the interference noise appearing in real time, and the accuracy of a measured value is guaranteed through various means. According to the method, the ultrasonic performance is maximized, the interference under different scenes is self-adapted and filtered, compensation is introduced through feedback to adjust ultrasonic parameters, so that the method can adapt to complex scenes to filter vehicles and moving objects, and dynamic monitoring of the water level of accumulated water is realized.

The present invention discloses a mini-type high-temperature and high-pressure test system and method. The system comprises a pressurization integration system, a temperature control box and a distribution box installed in an operation room, and a super-high pressure test container and an air compressor installed out of the operation room. The air inlet of the pressurization integration system is communicated with the air compressor through a compressed air hose, the air outlet of the pressurization integration system is communicated with the air inlet of the super-high pressure test container, and a pressure relief port is discharged through a pressure relief pipeline. The mini-type high-temperature and high-pressure test system and method can solve the high-temperature and high-pressure test of mini-type components and can accurately test the insulation degree index of components in the high-temperature and high-pressure 140MPa and 175 DEG C aqueous medium. The electric signals can be dynamically monitored in real time to reach the purpose of screening a qualified circuit board. The test efficiency is high, the high-temperature and high-pressure test with 140MPa and 175 DEG C can be performed once a day in the prior art, and the mini-type high-temperature and high-pressure test system and method can perform the high-temperature and high-pressure test for twice or three times each day so as to save the manpower resource.

The invention discloses a new mobile robot method for monitoring gas gas, which is characterized in that the mobile robot comprises a base, a microprocessor, a storage battery, an olfactory sensor, awind direction sensor, a video collector, a wireless data transmission device and an intelligent robot shell. Microprocessor for Data Acquisition, preprocessing and transmission, A video collector isused for collecting downhole images, The smell sensor is used for monitoring the underground odor, the wind direction sensor is used for monitoring the underground wind speed, and the wireless data transmission device is used for sending the data pretreated by the microprocessor to the remote server. The invention takes the highly sensitive smell sensor as the core, and can realize the real-time and automatic early warning of the underground gas concentration by using the modern artificial intelligence technology.

The invention relates to a pressure measuring device self-carried by an individual hydraulic prop. According to the pressure measuring device disclosed by the invention, the phenomena that liquid in the prop is leaked and pressure in the prop is decreased when the pressure of the prop is itinerantly monitored can be radically avoided, the problem that a tri-purpose valve (2) is damaged due to frequent insertion of a hydraulic pressure gauge (1) can be radically solved, and the purpose that the pressure of the individual hydraulic prop is dynamically detected in a real-time manner is realized, so that the pressure measuring time is shortened. The invention aims to provide the pressure measuring device comprising a pressure stabilizing valve (4), a duct (3), and the hydraulic pressure gauge (1), wherein the duct (3) is connected to the tail end of the lower part of the hydraulic pressure gauge (1), and a thread is formed in the duct (3); the hydraulic pressure gauge (1) is a pressure measuring device connected to the spiral thread duct (3), and the measuring range of the hydraulic pressure gauge (1) is 0-60 MPa. The pressure measuring device disclosed by the invention is novel in structure and light in mass, and the dynamic pressure of the hydraulic prop can be well monitored in a real-time manner; real-time parameter support is provided for safe supporting and protecting; the labor cost for monitoring the hydraulic pressure gauge (1) is reduced; the monitoring efficiency of the hydraulic prop is improved. The pressure measuring device disclosed by the invention is an innovation for pressure measurement of the individual hydraulic prop, and has a good practical value and a good economic value.

The invention provides a rock mass fracture unsaturated seepage test system. The system comprises a clamper (12) for clamping a fractured rock mass (11), a to-be-detected solution bottle (22) which isconnected with a first end cap (13) through a water inlet pipe (21), a high-pressure metering pump a (23) which is arranged between the to-be-measured solution bottle (22) and the first end cap (13),a to-be-tested gas tank (32) which is connected with the first end cap (13) through a gas inlet pipe (31), a vacuum pump (33) which is arranged between the to-be-tested gas tank (32) and the first end cap (13), a water-gas separation device (25), a high-pressure metering pump b (26) and a liquid collecting bottle (27) which are sequentially connected with a second end cap (14) through a water outlet pipe (24), and a booster pump which is controlled with a test box (1). The booster pump is controlled to load the pressure, the temperature control device controls the temperature of the test box,the high-pressure metering pump is adopted for automatic metering, real-time dynamic monitoring is achieved, fracture unsaturated hydraulic parameters in the true sense can be measured, and the precision is high.

The invention discloses a method for detecting abnormal articles in a fixed environment in real time, which can identify normal articles and abnormal articles in the fixed environment. The method comprises the following steps: establishing a normal article database in a fixed environment, detecting all objects in the fixed environment by using a target recognition algorithm, and designing a perceptual hash algorithm to compare detected articles with articles in the normal article database one by one to obtain a similarity value; and when the similarity value is lower than a set threshold value, regarding the object as an abnormal object, and adding the abnormal object into an abnormal object database. The method has the advantages that abnormal objects which should not appear in the sceneoriginally can be detected, manpower is greatly liberated, and the life quality of people is improved. Articles in the environment can be dynamically monitored in real time, early warning is accelerated, and safety performance is improved.

The invention discloses a vehicle collision emergency alarm calling device, and relates to the technical field of intelligent traffic management. The device comprises an accident alarm system, the accident alarm system comprises an alarm base station, a signal repeater, a field alarm system, a remote controller and a monitoring center. The field alarm system comprises a plasma laser transmitter, a laser diffusion device, a projector, a control box and a fog screen machine, the plasma laser transmitter and the projector are installed at the arch crown of a tunnel portal, the laser diffusion device is installed at the head of the laser transmitter, the control box and the projector are electrically connected with the monitoring center, and the fog screen machine is laid along the secondary linings of the tunnel portal. Based on a Zigbee wireless communication networking technology, a series of wireless alarm base stations and a field alarm system outside the tunnel are arranged in the tunnel, a laser virtual wall is formed at the tunnel portal by adopting a laser technology, traffic accident image information in the tunnel is displayed on the virtual wall, vehicles outside the tunnel are warned not to enter the tunnel any more, and secondary accidents are prevented.

The invention discloses a real-time monitoring system and method for sand pile construction quality. The real-time monitoring system and method are realized based on a sand pile resistance measuring component and a resistance collecting analyzer, wherein the sand pile resistance measuring component is matched with sand piles to monitor the resistance of a pile body during sand pile construction inreal time and transmit the resistance to the resistance collecting analyzer; and the resistance collecting analyzer is connected with the sand pile resistance measuring component, and determines real-time compactness of the sand piles during the sand pile construction according to a real-time resistance value of the pile body during the sand pile construction collected by the sand pile resistancemeasuring component. According to the real-time monitoring system and method for the sand pile construction quality, real-time dynamic monitoring of the sand pile quality during the sand pile construction can be realized, and the quality control over the sand piles can be brought forward to a construction stage, so that the construction quality of each sand pile is effectively ensured.

The invention discloses a 5G intelligent water conservancy comprehensive detection device and a detection system thereof. The device comprises a device body, the device body comprises a T-shaped collection box and a rotatable observation device arranged on the T-shaped collection box, and an automatic rotating device is arranged between the observation device and the T-shaped collection box. The T-shaped collection box comprises a first transverse part and a first vertical part, a storage battery, an image processing module, a data receiving and processing module and a collecting pipe are arranged in the first vertical part, and the first transverse part and the first vertical part are provided with the first supporting plates. The collection pipe is of an L-shaped structure, a retractable L-shaped telescopic pipe is arranged at one end of the collection pipe, a four-way valve capable of freely rotating is arranged between the L-shaped telescopic pipe and the collection pipe, and three connecting branch pipes are arranged on the four-way valve. The beneficial effect of the present invention is that an amphibious collecting device and a device for collecting different water areas are provided.

The invention relates to magnetorheological suspension sedimentation characteristic measurement, and especially relates to a capacitance monitoring device and monitoring method for a magnetorheological suspension sedimentation process. The capacitance monitoring device for the magnetorheological suspension sedimentation process comprises a magnetorheological suspension inlet (1), a base (2), an inner cylinder (3), an outer cylinder (4), a capacitor conductor pole plate (6), and a capacitance value measuring apparatus and a data processing apparatus; the inner cylinder (3) and the outer cylinder (4) are in cylindrical form and placed concentrically, in order to form a hollow circular column, the cylinder which is formed by the inner cylinder (3) and the outer cylinder (4) is arranged on the base (2), and the bottom part of a gap formed between the inner cylinder (3) and the outer cylinder (4) is arranged at a magnetorheological suspension inlet (1); multiple pairs of capacitor conductor pole plates (6) are coated on outer side of the inner cylinder (3) and the inner side of the outer cylinder (4) along the height direction of a hollow circular column, in order to form multiple capacitors, and a pair of capacitor conductor pole plates (6) at the same height are opposite; the capacitance value measuring apparatus and the data processing apparatus are connected.

The invention discloses a behavior prediction method based on wireless network cooperative sensing, which divides the wireless sensor network into a sub-node layer, a parent node layer and a gateway layer; the sub-node completes communication with the parent node through wireless communication technology, and then the The parent node forwards data to the gateway node; multiple child nodes and the ability of parent nodes to complete behavior prediction through cooperation; child nodes correspond to each routing node in the parent node routing table, and the parent node and its multiple child nodes in the routing table The ability to achieve behavior prediction through collaborative perception. The network nodes of the present invention realize communication and networking at the target site through wireless communication technology, the sensing data of wireless network nodes are transmitted between network nodes and shared among network nodes, and specific behaviors are performed through the data sensed by multiple network nodes According to the prediction of the behavior, the wireless network node operates its own corresponding working mode, so as to optimize the monitoring energy consumption of the wireless network node.

The invention discloses real-time ward dynamic monitoring equipment based on big data acquisition. The equipment comprises a machine box, a mounting clamping groove, a display, a limiting groove, a limiting assembly, an adjusting assembly, a monitoring detection probe, a fixer and a bandage, and is characterized in that a base plate is arranged at the bottom of the machine box through a fixing screw in a covering mode, the monitoring detection probe is arranged at the lower end of the base plate, an MCU module, a data receiving module, a comparative analysis module, an alarm module, a storage module and a wireless connection module are arranged at the upper end of the base plate through a circuit board, the monitoring detection probe monitors physiological feature data of a patient and transmits the data to the MCU module through the data receiving module, the MCU module calls all stored case information of the patient in the storage module, the case information is compared, calculated and analyzed through the comparative analysis module and put on a display screen, and once the body of the patient is abnormal, the MCU module controls the wireless connection module to be connected with a nurse station host to give an alarm to call medical staff, and therefore, a doctor can quickly diagnose and judge the illness state of the patient by checking comparison data on the display.

The invention discloses a real-time monitoring system and method for coal mine over-bed and border-crossing mining problems, and belongs to the technical field of coal mine mining detection. The invention adopts the energy consumption metering system to measure the electric energy data of the underground power distribution nodes and electrical equipment in real time, uses the positioning system to measure the position data of the underground electrical equipment in real time, and the background management system calculates according to the data uploaded by the positioning system and the energy consumption measurement system The total energy consumption of electrical equipment and the energy consumption of underground power distribution nodes within the scope of mining rights can obtain the real-time position of the fully-mechanized mining face in the mine, and judge whether there is any illegal behavior of super-layer and cross-border mining, and the monitoring system terminal will carry out early warning and alarm . The invention can monitor the position of the underground fully mechanized mining face in real time, find out the illegal behavior of over-layer and cross-border mining in real time, and give an alarm.

The invention relates to the technical field of information. Technical management system with process technical management as main line and management information resource sharing as core is provided.Through drawing management, construction planning, construction organization design, special construction schemes and other process management, the business operation is evaluated / summarized, the business process is promoted, businesses submitted by subordinate departments are reviewed / collected, intelligent tracking management and full-information real-time dynamic monitoring and sharing of thewhole process of existing technology management are achieved, the whole process and approval process of technology management are standardized through a management system, and the technical conditionof a project under construction is effectively managed; data redundancy of the service is reduced, and real-time dynamic monitoring and sharing are carried out by aggregating the data into one view; information compilation and changes are recorded in the form of versions each time, and declaration approval and approval records of the whole management process can be checked by switching the versions.

The present invention relates to a BeiDou space-time traffic signal-based special domain muck car peccancy analysis device and method. The BeiDou space-time traffic signal-based special domain muck car peccancy analysis device comprises a client and a service terminal, the client comprises a vehicle-mounted BeiDou positioning module and a fingerprint matching module, and the service terminal comprises a traffic signal lamp phase acquisition module and a peccancy analysis module. The BeiDou space-time traffic signal-based special domain muck car peccancy analysis device of the present invention enables an original method of utilizing the electronic cameras at the crossings to snapshot the license plate numbers of the peccancy vehicles to be improved, is not influenced by the environmental infrastructures, is accurate and rapid to determine, does not need special persons to guard and does not need to measures the positions artificially, can obtain and upload the position data real-timely, and saves the manpower and material resources.