190 results about "Monitoring problem" patented technology

An elimination-absorber monitoring system addresses diaper-monitoring problems with a unique, low cost, multi-layer disposable sensor structure that absorbs small volumes of urine, yet allows most urine volume to flow unimpeded through it, and into the diaper below. When connected with a reusable, miniature monitor / indicator unit, the sensor presents a clear and on-going change of measurement condition upon experiencing a rapid influx into the diaper of a significant volume of urine, and / or upon a significant reduction in the available absorbency of the diaper's top surface. The sensor additionally provides recessed, protected elements for similarly presenting a clear and on-going change in measurement condition upon experiencing the presence of fecal matter. Further provided is the monitor unit employing narrow, widely-spaced, fast rise-time, fast transition-time pulses for conductivity measurement and alarm activation. The monitor and sensor are interconnected and attached to a diaper by particularly effective and unique means, and the monitor is equipped with a highly intuitive and convenient control interface, as well as improved assemblies for the transmission of audible and visual alarm indications. Also described is a convenient test-strip device which, when connected to the monitor / alarm unit of the system, can selectively simulate either a soiled or unsoiled elimination-absorber / sensor for test, caregiver-training or demonstration purposes.

An elimination-absorber monitoring system addresses diaper-monitoring problems with a unique, low cost, multi-layer disposable sensor structure that absorbs small volumes of urine, yet allows most urine volume to flow unimpeded through it, and into the diaper below. When connected with a reusable, miniature monitor / indicator unit, the sensor presents a clear and on-going change of measurement condition upon experiencing a rapid influx into the diaper of a significant volume of urine, and / or upon a significant reduction in the available absorbency of the diaper's top surface. The sensor additionally provides recessed, protected elements for similarly presenting a clear and on-going change in measurement condition upon experiencing the presence of fecal matter. Further provided is the monitor unit employing narrow, widely-spaced, fast rise-time, fast transition-time pulses for conductivity measurement and alarm activation. The monitor and sensor are interconnected and attached to a diaper by particularly effective and unique means, and the monitor is equipped with a highly intuitive and convenient control interface, as well as improved assemblies for the transmission of audible and visual alarm indications. Also described is a convenient test-strip device which, when connected to the monitor / alarm unit of the system, can selectively simulate either a soiled or unsoiled elimination-absorber / sensor for test, caregiver-training or demonstration purposes.

The invention discloses an optical cable monitoring system which comprises an optical fiber automatic switching unit, a multiplex optical switch unit, an optical fiber testing unit, a communication control unit and a network management unit; wherein, the network management unit is directly connected with the communication control unit through the network; the optical fiber automatic switching unit, the optical fiber testing unit and the multiplex optical switch unit are connected with the communication control unit through the electrical interface form; the optical fiber automatic switching unit, the optical fiber testing unit and the multiplex optical switch unit are connected with each other through optical fiber interfaces. The optical cable monitoring system not only solves the alarm problem of the abnormal optical cable and the real-time monitoring problem of the operational business optical fiber, but also provides a protection function of the optical fiber line; the construction cost and the maintenance difficulty of the system are reduced. The optical cable monitoring system adopts the unified network management and integrates the GIS / GPS to realize the management of the optical fiber resources; the user can obtain the optical fiber fault location service which is convenient, rapid and accurate; meanwhile, the automatic switching protection of the optical transmission system is realized and the loss of the optical transmission business is avoided.

The invention discloses an on-line positioning method of a section with low-current ground faults and a system based on the positioning method. The method and the system are suitable for a neutral ungrounded power grid of 3-60kV. Under the operation condition of a line with single-phase ground faults, the phasor information of a zero-sequence voltage and the amplitude and phasor information of a zero-sequence current of the line are measured, and the section position of a fault point is determined according to the amplitude and phase information. The accuracy and rapidity of positioning are fully ensured, and the on-line positioning problem of single-phase ground faults of the neutral ineffectively grounded power grid and the monitoring problem of short-circuit faults between lines are effectively solved.

A method and apparatus for determining when to close a problem case associated with a machine that includes identifying at least one failure condition associated with the problem case, determining whether the failure condition is repeated after a recommended fix instruction is executed and closing the problem case if the failure condition does not repeat within a predetermined amount of time after the fix instruction has been executed. The machine may be a remote machine such as a locomotive and electronic data indicative of the failure condition may be transmitted from the remote machine to a control center over a telecommunications medium such as the Internet. The control center may include a processor for managing the electronic data that may be transmitted from a plurality of remote machines. The control center processor may be adapted to request downloads from the remote machines and monitor downloaded data to determine whether the failure condition are repeating after the fix instruction has been executed.

The invention provides an equipment data collecting system based on OPC UA protocol, which can solve multi-level data collection, transmission and monitoring problems of each bottom device, measuring instrument, automatic control system and so on on the industrial site, realize data transparency of complicated bottom automation equipment and improve information integration modes. The equipment data collecting system based on the OPC UA protocol is characterized by comprising a bottom adapter, an OPC UA middleware and an upper application, wherein the bottom adapter comprises a data modulation module and a data transmission module, wherein the data modulation module is used for taking out bottom equipment data value needed by a user, data values of a plurality of communication protocols can be taken out through configuration, and the data transmission module is used for transmitting the data value taken out from the data modulation module to the OPC UA middleware at a configured speed; the OPC UA middleware comprises a data service center and a Modeling and configuring module; and the data service center comprises a data collection module, an even processing module, an OPC UA real-time data server and a history data module.

The invention relates to a detection control method used in printing color, and aims to overcome the disadvantage that the prior printing reproduction effect detection method has limited analysis and measuring capabilities. The detection control method comprises the following steps: firstly, adopting CCD industrial color camera collection equipment to obtain a presswork color information RGB value; secondly, converting the RGB value into an Lab value corresponding to a CIELab space, and adopting a least square support vector machine method to realize transformation modeling from an Lab space to a CYMK space; converting the Lab value of a to-be-detected sample into a CYMK value of the CYMK space by a trained model to obtain the ink value of a corresponding ink area of a color presswork; and finally, comparing the ink amount value with a standard value to obtain an adjustment amount of the ink amount in the corresponding ink area. The detection control method not only measures color characteristics accurately, but also directs the adjustment in the amount of yellow, fuchsine, cyan and black ink during the printing, thereby solving the problem of effective and realizable monitoring of color reproduction effect in the color printing field.

The invention discloses a terminal and method for obtaining the power battery data of an electric vehicle, which are used for solving the problem that the prior art can not monitor the service condition and operation state of the power battery of a vehicle. The terminal comprises a data acquisition module, a display and a communication module, wherein the data acquisition module is used for acquiring the attribute information and state information of a power battery through a battery sensing module BBS of a vehicle-mounted power battery; the display is used for displaying the attribute information and state information of the power battery acquired by the data acquisition module; and the communication module is used for sending the attribute information and state information of the power battery acquired by the data acquisition module to an electric vehicle operation management platform. Through the technical scheme of the invention, a battery owner can master the service condition, the operation state and the like of the battery of the vehicle, thus the battery maintenance or replacement is facilitated, and the safety of the electric vehicle is further improved.

The invention discloses a system and method for monitoring ore-dressing production indexes, and belongs to the technical field of ore-dressing production processes. The method includes the steps of data obtaining, index influencing factor screening, index monitoring, case library maintaining, index anomaly analyzing and data storing. Deep analysis of influence factors of ore-dressing important production indexes and analysis of abnormal conditions of the ore-dressing important production indexes are achieved, and the efficiency degree of monitoring on the ore-dressing important production indexes is improved; the problems that only statistic displaying of all ore-dressing production indexes is carried out in current ore-dressing production index monitoring, the way how the important production indexes most cared by an enterprise are effectively monitored by analyzing mutual influence relations between the various production indexes is not researched, causes of anomalies of the indexes in the ore-dressing process are not analyzed and processed, and therefore the important production indexes in the ore-dressing process can not be effectively monitored in an on-line mode are solved.

The invention provides a mechanical fatigue damage monitoring device and method under a multi-axis random load, which belong to the field of mechanical fatigue damage monitoring. The device mainly comprises a data collecting system (1), a data processing system (2) and a data monitoring system (3). The data collecting system (1) comprises a mechanical key part A2, a strain sensor A1 and a data transmission line A3; the data processing system (2) comprises a data collecting card B1, an alternating current power supply B2, a USB transmission line B3, a power amplifier B4 and an A / D (Analog to Digital) converter B5; and the data monitoring system (3) comprises a computer C1. According to the invention, as a multi-axis fatigue damage estimating theory based on a critical plane method is applied to a monitoring system, common fatigue damage monitoring problems under the multi-axis load in the actual construction are solved; and as shown by a predication result, the fatigue damage under the multi-axis load can be preferably estimated by using the algorithm.

An elimination-absorber monitoring system addresses diaper-monitoring problems with a unique, low cost, multi-layer disposable sensor structure that absorbs small volumes of urine, yet allows most urine volume to flow unimpeded through it, and into the diaper below. When connected with a reusable, miniature monitor / indicator unit, the sensor presents a clear and on-going change of measurement condition upon experiencing a rapid influx into the diaper of a significant volume of urine, and / or upon a significant reduction in the available absorbency of the diaper's top surface. The sensor additionally provides recessed, protected elements for similarly presenting a clear and on-going change in measurement condition upon experiencing the presence of fecal matter. Further provided is the monitor unit employing narrow, widely-spaced, fast rise-time, fast transition-time pulses for conductivity measurement and alarm activation. The monitor and sensor are interconnected and attached to a diaper by particularly effective and unique means, and the monitor is equipped with a highly intuitive and convenient control interface, as well as improved assemblies for the transmission of audible and visual alarm indications. Also described is a convenient test-strip device which, when connected to the monitor / alarm unit of the system, can selectively simulate either a soiled or unsoiled elimination-absorber / sensor for test, caregiver-training or demonstration purposes.

The invention relates to a remote solar street lamp monitoring device based on a cell phone network, in particular to a remote monitoring device applied to the solar street lamp controller. The controller comprises a power control unit 31, a core processing unit 32, a street lamp state monitoring unit 33, a GSM communication unit 34, a standby state monitoring unit 35 and a keyboard and display unit 36; the invention solves the problem of remote wireless monitoring of solar street lamps or other solar-energy-powered devices, improves stability of solar energy power supply system, realizes scientific management of storage batteries by employing a 3-stage charging mode and effectively prolongs service life thereof.

The invention relates to a free stationing transformation monitoring method of a high-fill airport side slope unit set total station, and is used for effectively solving the accurate monitoring problems that a high-fill airport side slope is long and narrow, is a strip shape and is linear extension, and the graph intensity is poor. The monitoring method comprises the following steps of: dividing the involved range into a first measuring region, a second measuring region and a third measuring region from large to small, and setting a control point, a monitoring point and a turning point in each measure region, wherein the position of a survey station is freely selected; establishing a control net of the whole monitoring region, carrying out substation measurement on the control points and the monitoring points in the measuring regions, establishing a posture and oriented relation between adjacent survey stations, meanwhile, realizing larger expansion in an instrument measurement range; and taking the acquired horizon angle, a vertical angle and slant distance as observed values, taking a survey station position parameter and a monitoring point coordinate as an adjustment parameter so as to carry out parameter adjustment, and obtaining the precision result of the survey station position parameter and the monitoring point coordinate. The monitoring method provided by the invention has the advantages of high measuring accuracy, flexibility and convenience, convenience for carrying and good portability.

The invention discloses a distributed traveling wave range finding method comprising the following steps: collecting traveling wave voltage and current data of multi-measuring point according to preset distances; timing and correcting the acquisition time; determining the initial traveling wave speed according to traveling wave time and measuring point distance measured on measuring points of two ends of the fault; determining the fault position according to the initial traveling wave speed, the distance of two adjacent measuring points, the fault propagation time to the measuring point, and two end range finding. The method distributes measuring points along power transmission line poles according to certain distances, and can dynamically measure the traveling wave speed approaching to the real value, thus solving the existing power transmission traveling wave monitoring problems, and ensuring the range finding precision under various complex conditions like high resistance grounding.

The invention relates to the technical field of wireless network high-definition video surveillance and discloses a video surveillance method and apparatus based on 3G network. The apparatus comprises terminal equipment and server-side equipment; the server-side equipment is accessed to Internet through IP network and receives video data stream sent by surveillance video transmission terminal equipment through the 3G network; the terminal equipment comprises a wireless communication module and a video processing module; the wireless communication module is connected with the video processing module through an interface; and the video processing module is connected with a video camera through any one of an IEEE 1394 interface, an SDI (Standard Data Interface) and an HDMI (High-Definition Multimedia Interface) to realize video data collection. According to the invention, mobile high-definition images of video surveillance are transmitted real-timely through binding parallel balance transmission of a plurality of wireless channels under different systems, so that the transmission bandwidth of data is expanded effectively, the data transmission rate of each channel can be adjusted dynamically and real-timely, and the problem of real-time surveillance in a mobile state can be solved.

The invention provides a monitoring method and device for host batch job data. The method comprises the following steps of: capturing job information of host batch job to generate a data acquisition trigger instruction; collecting job execution data within predetermined time according to the data acquisition trigger instruction, and storing the job execution data; comparing the job execution datawith the predefined job and batch monitoring threshold data to judge a job execution state, and generating and storing early warning information and report information; sending out the early warning information through a predefined strategy of notice by means of a presentation interface or email sending or short message notification; and performing report processing and generation according to the report information, and providing a report for users through the presentation interface. With the method and the device, automatic monitoring on batch data processing of a computer host is implemented.

The present invention discloses a welded member fatigue stress and strain real-time non-contact type monitoring method. According to the method, the welded member welding seam and a certain surrounding area are subjected to grid division with a certain interval, each grid intersection point is adopted as an infinitesimal body as the stress and strain analysis unit, the feature information of the pixel points of all infinitesimal bodies in the area to be measured during the fatigue load acting process are extracted through a machine vision monitoring system when the fatigue load acts on the member, the collected member image is subjected to pixel point matching, the relation between the stress and strain change law and the image feature is established so as to obtain the feature change of the infinitesimal body during the fatigue load acting process, and finally the strain value and stress distribution law and the stress strain evolution law during the fatigue process are obtained. The method of the present invention is used for solving the monitoring problem of the stress and strain status distribution and evolution law of the welded member in the steel structure under the fatigue load acting.

The invention relates to a setting method for a power tunnel monitoring system. The setting method comprises the following steps of: 1) setting a monitoring center in a power tunnel; 2) setting a tunnel auxiliary equipment monitoring subsystem in tunnel auxiliary equipment; 3) setting tunnel environment monitoring subsystems inside and outside a working well and a tunnel; 4) setting automatic fire alarm subsystems inside the working well and the tunnel; and 5) setting safety protection subsystems at the entrances and the exits of the working well and the tunnel. Compared with the prior art, the setting method has the advantages of simplicity, convenience in implementation and the like; and furthermore, a situation in the tunnel can be monitored in real time, the monitoring problem in the power tunnel is solved, and the safety in the tunnel is guaranteed.

The invention relates to an optical power testing device used for making up for blanks in the prior art, and provides a multi-channel optical power automatic monitor and a testing method thereof. The multi-channel optical power automatic monitor and the testing method are characterized in that the monitor comprises a multi-channel photodiode, a multi-channel transimpedance program control amplifier, a temperature sensor, an I / V converter, an electronic switch set, an analog-digital converter and a single chip microcomputer. The multi-channel photodiode converts a multi-channel optical signal into a multi-channel current signal, then the multi-channel current signal is converted into a multi-channel voltage signal through the multi-channel transimpedance program control amplifier, the multi-channel voltage signal is input into the analog-digital converter through the electronic switch set to obtain a multi-channel digital signal, and then the single chip microcomputer displays processed real-time optical power data and processed single-channel temperature data of multiple channels through a computer in real time. The monitor and the testing method effectively solve the automatic monitoring problem of mechanical and environment tests of a multi-core optical fiber and a multi-channel branching device, and the stability of a system is better than 0.01dB in a short time and is better than 0.02dB in a long time.

The invention relates to a real-time risk monitoring system for bank entrusted assets. The monitoring system comprises an investment information processing device, a data storage device, a risk information processing device, a client information processing device, an identity authentication device and a client terminal, wherein the data storage device is linked with the investment information processing device, the risk information processing device and the client information processing device respectively; the client information processing device is linked with the identity authentication device and the client terminal through an LAN (Local Area Network); the investment information processing device comprises an agreement information storage device, a product information transmitting and receiving device and an investment instruction transmitting and receiving device; the risk information processing device comprises an investment program designing device, a risk analyzing and measuring device, a risk event dispensing device and a client request processing device; and the client information processing device comprises a client information transmitting and receiving device, a client request transmitting and receiving device and an operating instruction monitoring device. The system provided by the invention realizes dynamic real-time monitoring of entrusted assets.

The invention discloses a multi-sensor integration based automotive transport monitoring system which comprises a background monitoring server and at least one vehicular multi-sensor monitoring terminal. The background monitoring server and the multi-sensor monitoring terminals are connected through a wireless network and TCP (transmission control protocol) / IP (internet protocol), the background monitoring server comprises an application program server, a WEB server, a database server, each multi-sensor monitoring terminal comprises a MCU (microprogrammed control unit), a gas monitoring function module, a safety monitoring function module, a transport condition monitoring function module and a wireless communication function module, and the gas monitoring function module, the safety monitoring function module, the transport condition monitoring function module and the wireless communication function module are electrically connected with the MUC respectively. By adopting the multi-sensor integration based automotive transport monitoring system, monitoring can be realized by starting different sensors according to different automotive conditions, so that the monitoring problem of unsafe factors such as drunk driving, fatigue driving and resting in automobiles with doors closed in cold weather of long-distance transport drivers is solved.

The invention provides a method for measuring the content of tannin in a red sage root extracting solution by a near infrared spectrum, which comprises the following steps: firstly, collecting typical red sage root extracting solutions to be used as a correcting sample set; scanning to acquire a near infrared spectrum chart of the correcting sample set; selecting a proper spectrum waveband and a proper pretreatment method to acquire the characteristic spectrum information of the red sage root extracting solution; by using the result of the content of the tannin in the sample set measured by a phosphomolybdium tungstic acid / casein method as a reference value, constructing a multivariate correcting model of relation between the near infrared characteristic spectrum information and the tannin content of the red sage root extracting solution by applying the chemometrics technology; carrying out near infrared spectrum scanning on the red sage root extracting solution sample with unknown content, and acquiring the characteristic spectrum information; and rapidly calculating the content of the tannin by utilizing the constructed quantitative correcting model. The invention has the characteristics of simple method, rapidness and high accuracy, can effectively solve the problem of monitoring of the content of the tannin in the red sage root extracting solution to ensure the quality of red sage root injections, and can be popularized and applied in production of traditional Chinese medicine preparations.

The invention discloses a UI automatic test method, which is executed in a browser. The method comprises the following steps: configuring structured data corresponding to a test scene; mapping an instruction behavior of an operation instruction to a first key; mapping an expected type of assertion operation to a second key; executing operational instructions in the test scenario based on the structured data, the first keyword and the second keyword; and generating a test result report based on the expected type of assertion operation. The scheme solves the problem of automatic testing and monitoring of web system based on browser / server structure at UI level.

The invention discloses an insulation online monitoring method for high-voltage capacitive equipment, which is used for solving the insulation online monitoring problem of the high-voltage capacitive equipment in a transformer substation. Safe and reliable measurement of voltage and current of the capacitive equipment of the transformer substation is realized by combining a fiber transmission technology, a photoelectric conversion technology, a digital signal processing technology and a virtual instrument technology through an optically powered data link (OPDL); synchronous acquisition of voltage and current signals is realized by optical pulse synchronous trigger; weak electrical signals are converted into optical signals in situ and the optical signals are transmitted through fibers, so that the interference resistance of the signals is improved, and meanwhile, the problem of possible overvoltage when the traditional cable transmits the signals is avoided; and by adopting a laser power supply technology, energy supply problems of outdoor electronic components such as zero flux current sensors and the like are safely and effectively solved, and reality and accuracy of the acquired signals are ensured. The method can provide reliable data for state maintenance and full-life management of power equipment, has reliable operation, and is convenient in operation and safe to implement.

The invention discloses a remote online monitoring system for wind / solar hybrid power generation equipment, and relates to the field of online monitoring of industrial equipment. The system is an industrial wireless remote online monitoring system, and is particularly suitable for monitoring the wind / solar hybrid power generation equipment. The system comprises a wind / solar hybrid power generation equipment state monitor, a video acquirer, a remote data acquisition and transmission master controller and a data monitoring and publishing platform. The system solves the problem of wireless remote online monitoring of wind / solar hybrid power generation equipment and electrical equipment, simultaneously provides a networking mode for a large-scale online monitoring network, and for a large-scale even huge wind / solar hybrid power generation equipment array monitoring network, can adopt a cellular mobile communication network-mobile ad hoc network hybrid networking mode, perform network aggregation by using a mobile ad hoc network and deploy cellular mobile communication gateways at certain key network nodes to save a great amount of mobile communication cost and effectively improve the stability and reliability of the wireless monitoring network.

A Dedicated Administrator Connection (DAC) for a database server is provided that allows a user with administrator privileges to connect to the database server when a connection by standard means fails. By allowing an administrator to connect to the server through the DAC, the administrator can resolve the issue despite the failure and bring back the server to a responsive state without requiring the server to be shut down and restarted. Additionally, support engineers, developers, etc. can use the DAC to diagnose a range of problems without the use of a debugger or requesting a repro while monitoring for issues.

The invention provides a method for measuring the content of paeoniflorin in radix paeoniae alba extracting process by the aid of near infrared spectrums, which can effectively overcome the shortcoming that in a conventional traditional Chinese medicine extracting process, the efficiency of a quality control method is low and operation is troublesome. The technical scheme includes that the method includes steps of collecting iconic radix paeoniae alba extracting process liquid as a correcting sample set at first; scanning the correcting sample set by the near infrared spectrums; selecting by means of waveband selection and spectrum pre-processing; and obtaining characteristic spectrum information which can mostly embody the characteristics of the paeoniflorin. Data, which are measured by a high performance liquid chromatography method by the aid of partial least squares, of the content of the paeoniflorin are relevant to the characteristic spectrum information of a sample, and accordingly a multi-element correcting model for the content of the paeoniflorin in the radix paeoniae alba extracting process is built. The built paeoniflorin quantitative correcting model is used for fast detecting the paeoniflorin in an unknown radix paeoniae alba extracting process. Results show that near infrared spectrum technology can be used for effectively detecting the content of the paeoniflorin in the radix paeoniae alba extracting process. The method has the advantages of simplicity, fastness, high accuracy and the like, can effectively monitor the change of the content of the paeoniflorin in the radix paeoniae alba extracting process as compared with a common detecting method by the aid of an instrument, has a high practical value, and can be popularized and applied to a traditional Chinese medicine production process.

The invention provides a remote medical equipment data communication management system and a working method thereof. The remote medical equipment data communication management system comprises wireless nodes, a wireless network and an upper computer system. The wireless nodes are connected with equipment through serial ports or network ports or other different ports, and real-time interaction communication and information storage are achieved; under the control of an upper computer, the wireless nodes are in batch data communication with an upper computer management system through the wireless network; the upper computer system conducts configuration and control on the wireless nodes, data of each wireless node are collected at high speed, all the received data are stored in a database, and the data are processed. By means of the remote medical equipment data communication management system and the working method thereof, under the premise that performance of the medical equipment is not affected, batch monitoring and key monitoring can be conducted on dozens of medical equipment, the detection data are analyzed, forecast and early warned in real time, monitoring efficiency is improved obviously, and the problems that allocation burden of medical workers is caused by distributed management of the medical equipment at present and the operating states of the equipment cannot be monitored or controlled in real time are solved.

The invention discloses a vehicle tracking and detecting method based on parking lot environment video monitoring and relates to the field of pattern identification, detection and tracking of a moving object and the problem of video monitoring. Through the method of the invention, the monitoring problems of the parking lot environment are obtained more accurately, and compared with the conventional human monitoring method, the method of the invention has the feature of real-time non-interrupted monitoring; and by introducing and using the algorithm of pattern identification, and through the modes of vehicle object detection and correlation analysis of each frame image within time period and the like, the object state of a vehicle is obtained, furthermore, the environment state of a parking lot is obtained, and thus the problem of intelligent monitoring of the parking lot environment is solved.

The invention aims at providing a residue soil vehicle transportation process monitoring system, comprising a magnetic switch, a distance sensor, a load-carrying sensor, a satellite navigation terminal and a remote monitoring server. The magnetic switch, the distance sensor, the load-carrying sensor, and the satellite navigation terminal are installed on a residue soil vehicle. The invention also provides a residue soil vehicle transportation process monitoring method. The system and method can effectively supervise and control overload transportation, dissemination, random dumping, etc. of the residue soil vehicle, solve the monitoring problem in a residue soil vehicle transportation process, and possess the advantages of high efficiency and reliability.