35results about How to "Efficient test results" patented technology

The invention discloses a method and system for sea-sky-line detection and navigation via an USV based on vision. The method comprises the following steps: extracting all the line segments in an imageby using a line segment detection algorithm, building a line segment pool, then with the morphological characteristics of a sea-sky-line as constraint conditions, filtering out non-sea-sky-line segments in the line segment pool so as to obtain candidate sea-sky-line segments; estimating optimal sea-sky-line results by using a least square method so as to obtain detection results of the candidatesea-sky-line segments; and based on the detection results of the candidate sea-sky-line segments, resolving the parameters of USV navigation on the basis of a photography model of the sea-sky-line. Thus, the method and system provided by the invention can effectively detect the sea-sky-line via the USV and accurately calculate the attitude navigation parameters of the USV.

The invention discloses a test device for a variable pitch controller, relates to the technical field of wind power generation, and aims to provide a device capable of realizing automatic test to the variable pitch controller. The technical point of the invention is that the device comprises an application layer, a PXI (PCI eXtensions for Instrumentation) system, an interface control box, an adapter plate, display equipment and input terminal equipment, wherein the PXI system comprises a PXI controller and a PXI card; the adapter plate comprises an interface circuit and an adapter plate controller; the PXI controller and the PXI card are in signal connection through a PXI bus; the interface control box is used for connecting signal interfaces of the PXI card correspondingly to signal interfaces of the adapter plate; partial signal interfaces of the adapter plate are used for connecting signal interfaces of the interface control box to corresponding signal interfaces of a tested variable pitch controller in a distribution way; and the other signal interfaces of the adapter plate are used for connecting signal interfaces of the adapter plate controller with corresponding signal interfaces of the tested variable pitch controller.

The invention discloses a plate-type conveying chain failure early-warning method, which includes the steps: setting occurrence frequencies of chain shafts when a plate-type conveying chain is in normal operation; detecting the occurrence frequencies of each chain shaft when the plate-type conveying chain is in operation; performing failure recognition and judgment for the plate-type conveying chain by comparing the set frequencies with the detected frequencies of the chain shafts; and performing early-warning control for a driving device for the plate-type conveying chain according to failure recognition and judgment. A plate-type conveying chain failure early-warning system comprises a detecting device, a control unit and an early-warning device, wherein the control unit is used for controlling the early-warning device and the driving device for the plate-type conveying chain according to failure recognition conditions. By the aid of the plate-type conveying chain failure early-warning system, the operation conditions of the plate-type conveying chain can be effectively guaranteed to be constantly detected during operation of the chain, so that stability, reliability and safety during production are guaranteed.

The invention discloses an apparatus and a method for detecting loosening of a carrying dolly chain lifting chain, the detection apparatus comprises a support, a pedestal is provided on the top of the support; a travel switch is provided on the end face of the pedestal; a tension wheel engaged with the lifting chain is provided at the lower part of the pedestal bottom, the tension wheel is arranged at the lower part of the pedestal through a tension wheel support; the one end of the tension wheel support is connected with the tension wheel, the other end of the tension wheel support is threaded out of the end face of the pedestal; a signal rod which is used for triggering the travel switch and is contacted with the travel switch is provided on one end threaded out of the tension wheel support; a compression spring is provided between one end of the tension wheel support which is connected to the tension wheel and the pedestal bottom; The detection method of the loosening of carrying dolly chain lifting chain is realized by using the apparatus for detecting the loosening of the carrying dolly chain lifting chain. The real time detection of an operation state of the carrying dolly lifting chain can ensure the stability, reliability and security of the production process.

The invention relates to a self-regulation monitoring device and a self-regulation monitoring method based on meteorological condition monitoring. The self-regulation monitoring device and the self-regulation monitoring method based on the meteorological condition monitoring are characterized in that the self-regulation monitoring device based on the meteorological condition monitoring comprises a meteorological monitoring module, a main control module, a front-end equipment module and a network query module, wherein the main control module is connected with the meteorological monitoring module, the front-end equipment module and the network query module, and the network query module is connected with an authoritative meteorological institution. The self-regulation monitoring method based on the meteorological condition monitoring comprises the following steps: the meteorological monitoring module collects meteorological data and feeds back to the main control module, the main control module determines final meteorological conditions, the main control module determines the regulation scheme of theoretical parameters of the front-end equipment module, the main control module sends a control command to the front-end equipment module, and the front-end equipment module conducts function regulations and parameter regulations. According to the self-regulation monitoring device and the self-regulation monitoring method based on meteorological condition monitoring, a meteorological environment in which the front-end equipment module is located is compared with authoritative monitoring data, the self-regulation of equipment functions is conducted in real time and dynamically, the control is flexible and unmanned, and at the same time the display quality of monitoring is superior.

The invention discloses an electrochemical sensor automatic identification and failure detection system and a detection method thereof. The detection system includes a single-chip microcomputer, a liquid crystal control panel, a memory, a power supply, an AD conversion circuit, and an electrochemical sensor automatic identification and failure detection circuit. The single-chip microcomputer is respectively connected with the liquid crystal control panel, the memory, the power supply, the AD conversion circuit, and the automatic identification and failure detection circuit of the electrochemical sensor, and the AD conversion circuit is connected with the automatic identification and failure detection circuit of the electrochemical sensor connect. The electrochemical sensor failure detection method uses the electrochemical sensor automatic identification and failure detection system to detect the electrochemical sensor failure. The invention has the advantages of simple structure, scientific and reasonable design and convenient use, and can quickly, efficiently and accurately detect whether the electrochemical sensor is invalid.

The invention provides a multifunctional secondary voltage and current comprehensive measurement and analysis device. A setting end of a CPU (Central Processing Unit) is connected with a man-machine conversation module; an alternating-current sampling module assembly is connected with a signal input end of the CPU through a DSP (Digital Signal Processor) data processing system; and a signal output end of the CPU is sequentially connected with a color display. According to the multifunctional secondary voltage and current comprehensive measurement and analysis device disclosed by the invention, the problem that a test result is influenced by different precisions and errors of different sampling equipment is greatly reduced, the problem that one test needs many people to cooperate simultaneously is solved, and the working efficiency of field experimental workers is improved, so that the multifunctional secondary voltage and current comprehensive measurement and analysis device has actual wide popularization values and meanings to electric power industries.

The invention discloses an Android application concurrent vulnerability detection system. The system comprises a concurrent vulnerability analysis module, an application plug-in mounting module and an application performance module. The concurrent vulnerability analysis module is used for analyzing potential concurrent vulnerabilities in an application and transmitting the potential concurrent vulnerabilities to the application instrumentation module. The application instrumentation module carries out instrumentation on a statement capable of changing thread scheduling at a position of suspected data race code according to a detection result of the concurrent vulnerability analysis module, carries out instrumentation on control code capable of blocking thread operation at the position of a background thread entrance method and carries out instrumentation on background service for obtaining application operation moment state information. The application performance module operates the instrumented application, generates paired suspected events and sends the events to the application, thereby triggering potential concurrent vulnerabilities. According to the system, the detection result is accurate and efficient, and a whole process is automated without extra participation of a user.

The invention discloses a micro-monitoring system for groundwater content and water quality, which comprises a buoy shell. The buoy shell is provided with buoy cavities penetrating left and right. The upper side of the underground waterway is provided with a telescopic cavity. Slidingly connected with a water intake pipe extending into the cavity of the buoy; the invention sets a detection point above the water intake point of the groundwater, and through wireless transmission, the water quality of each water level can be detected in real time, saving labor consumption and making detection The result is more efficient, and by cleaning the water intake pipeline, the groundwater at the time of water intake is guaranteed to be the current water quality, and will not be affected by the water intake pipeline for detection, and by protecting the signal antenna that transmits the signal, the signal antenna will not be in the air. Damage is caused during lightning protection, and the lightning rod is retracted during signal transmission, which ensures the efficiency and safety of signal transmission.

The invention relates to a method of quickly determining tocopherol content in cabbage type rape seeds by using a near infrared spectrum. The method specially comprises the following steps: collecting spectral data of a sample by using an infrared spectrometric analyzer as a correcting set; pre-processing the near infrared spectrum of the correcting set; associating the chemical value of the sample of the correcting set with the data of the near infrared spectrum to establish different calibrating equations and determining a correcting model; and performing external verification on the near infrared correcting model by using a verifying set. The method provided by the invention has the advantages that the tocopherol content in the cabbage type rape seeds can be quickly and efficiently determined without loss, and a convenient and effective method for breeding rape with high tocopherol is provided, so that the breeding process of a novel variety is extremely accelerated.

The invention relates to a method for quantitatively measuring the degree of entanglement of ultra-high molecular weight polyethylene resin. The ultra-high molecular weight polyethylene resin to be tested is mixed with a solvent and stirred to obtain a mixed slurry, and the temperature is rapidly raised to a temperature above the melting point of the ultra-high molecular weight polyethylene resin. Lower constant temperature treatment for a period of time, obtain the change curve of viscosity with time, pass in the viscosity change curve (η max ‑η eq ) / η max The value of is a quantitative measure of the degree of entanglement of UHMWPE resins. Compared with the prior art, the invention quickly and simply quantitatively characterizes the molecular chain entanglement degree of the ultra-high molecular weight polyethylene resin, and solves the problems of complicated implementation steps and large errors in the prior art.