40results about How to "Meet collection requirements" patented technology

The invention discloses vehicle-mounted engineering machinery remote wireless data collection and monitoring system and a method. An analogue value, a switching value, a frequency value, a RS-232 interface, a CAN bus interface, a global positioning system (GPS) module, a power module, a real-time clock, an external expanding memory, a programming and debugging module and a general packet radio service (GPRS) communication module in a data collection device are respectively connected with a microcontroller; a control input module, a data communication module, a database storage processing module and a data display module are respectively connected with a data controller in a data monitoring device; and a GPRS communication module of the data collection device is connected with the data communication module of the data monitoring device in a wireless mode through transmission control protocol (TCP) data communication protocol. The system has rich and varied data collection channels, data collection storage, data collection transmission and the period can be remotely configured, local storage data of the data collection device can be remotely extracted, the collected data can be ensured not to lose when a wireless communication network is unawailable. The invention is suitable for vehicle-mounted engineering machinery remoter wireless data collection and monitoring.

The invention discloses a collection device of an earth-stone binary medium earth-pillar and a hydrologic parameter measurement system and method, and belongs to the technical field of the earth-pillar test. A pre-collected earth-pillar is placed in a specific device so as to be detected. The integrity and the stability of the original earth-pillar structure, physical character, and the chemical character can be well guaranteed, thereby effectively overcoming the obstacle that the traditional external force-embedded earth-sampling way cannot smoothly and accurately collect the original earth-pillar due to more gravels; the size setting is flexible, the operation is convenient and labor-saving, the joint mixture can be injected through injection holes around a sampler so as to fill the cracks, and the collection requirement of the large-size original earth-pillar can be satisfied; the advanced embedding of more sensors can be satisfied by means of the injection holes, the damage causedby the secondary development of the earth-pillar is reduced, and the accuracy of the earth-pillar test monitoring is improved. The obtained original earth-pillar containing the gravels is closer to the original state, thereby providing more scientific and accurate test sample for subsequently researching the subsequent earth-stone binary medium.

The invention provides a control method for improving gas recovery of a new OG (Oxygen Converter Gas Recovery) converter. The control method comprises the following steps: 1) feeding back a pressure signal of micro differential pressure of a converter mouth, a position signal of an annular gap scrubbing tower and rotation speed of a dust exhausting fan to a PLC (Programmable Logic Controller); 2) detecting the content of gas and the content of CO through a gas analyzing instrument, and igniting and diffusing the gas in a diffusing tower when the contents do not meet the recovery condition; 3) adjusting the micro differential pressure of the converter mouth by self-optimizing model switch control; and 4) starting to recover the gas when the gas analyzing instrument detects that the gas meets the requirement on collection. According to the control method for improving gas recovery of the new OG converter, a movable smoke hood, an annular gap hydraulic control device and the dust exhausting fan are coordinated and controlled by the PLC, the self-optimizing switching control mode is adopted, so that the micro differential pressure of the converter mouth in blowing can quickly reach the range of 0 to 10Pa and the stable state during blowing, and as a result, the content of the gas and the content of CO in of the converter can meet the requirement on collection within a short time, and the purpose of improving the recovery rate of the gas of the converter can be realized.

The invention discloses a passive sampling device of multi-component atmospheric organic pollutants and belongs to the field of sampling devices of organic pollutants in the air. The passive sampling device comprises a top hook, a sampling device body, baffles, a connection rod and an embedded screen drum. The sampling device body is of a layer structure formed by overlaying N baffles from top to bottom, and the baffles are fixedly connected through a connection rod in the middle of the sampling device body; the baffles are of cap-shaped structures with the middle protruding upwards and the periphery dropping; the baffle on the uppermost layer is in thread connection with the connection rod; and the embedded type screen drum is vertically placed in the sampling device body. The passive sampling device can collect organic pollutants different in type, simultaneously can obtain parallel samples of the atmosphere, can meet the pollution investigation and monitoring requirements on characteristic pollutants of volatile components and semi-volatile components like polycyclic aromatic hydrocarbon in chemical-industry type pollution sites and has the advantages of being low in cost, easy and convenient to operate and convenient to carry.

The invention discloses an automatic quantifying and sampling device for shale gas analysis, relates to the technical field of exploration and development of oil and gas, and is used for solving the technical problems in the prior art that sample collection wastes time and labor and sampling cannot be performed in batch. The automatic quantifying and sampling device for shale gas analysis comprises a sample collection unit and a control unit, wherein the control unit can control the connection and disconnection of a three-way valve in the sample collection unit so as to control the connectionand disconnection between an air inlet and an air outlet as well as between the air inlet and an injector, therefore, it can be achieved that a gas sample is automatically quantified, collected and analyzed in batch, thereby meeting natural gas sample collection requirements in the exhaust process in uncertain time periods during shale analysis; manual participation dose not needed in collection in batch, thereby improving the shale gas analysis experiment efficiency and reducing the labor cost in the experiment.

The invention provides a method for measuring the spatial orientation of a pipeline based on a CMOS image sensor. The method includes the following steps that: a laser light source and a CMOS image sensor are arranged at mechanical centering fixed ends at two ends of a universal joint, an attenuation sheet and a bubble fluorescent ring are arranged between the laser light source and the CMOS image sensor, the initial position of the laser light source is set, so that the initial position of the laser light source can be located at the center of the pipeline, and laser emitted by the laser light source is overlapped with the central axis of the pipeline; the laser light source moves, and the CMOS image sensor acquires one frame of image when the laser light source moves a certain distance each time from the initial position; laser spots and bubble fluorescent rings on the acquired images are processed, so that the pixel positions of the laser spots on a photosensitive surface and the directions of bubbles on the fluorescent rings are obtained, the center position of each laser spot and the position of each fluorescent ring bubbles are recorded; the center of each pixel light spot is converted into the actual physical position coordinates of a light spot center; and the orientation curve of the pipeline is fitted through using a least squares method-based curve fitting algorithm according to the actual physical position coordinates of the light spot center and the directions of the bubbles of the fluorescent rings.

The invention relates to a sampling system suitable for sampling fine particles in fixed-source droplet-containing flue gas. The sampling system comprises a flue gas pretreating part, a flue gas sampling gun, a diluting and aging part, a gas outlet device and a particle collecting part, wherein the flue gas pretreating part comprises a sampling nozzle (1) and a gas-liquid cyclone separator (2); the main body of the flue gas sampling gun (3) is a nafion tube bundle; the sampling nozzle (1) is connected with the front end of the flue gas sampling gun (3) through the gas-liquid cyclone separator (2). The sampling system has the advantages as follows: the dehumidifying effect of a device is improved; the sampling system is compact and miniaturized in structure, and easy and simple to operate.

The invention belongs to the technical field of marine waste cleaning equipment, and relates to a marine environmental protection tool, in particular to a marine floating material collecting device for efficiently collecting floating materials through rotation of suction fan blades and a flexible conveying chain. A main body structure of the marine floating material collecting device comprises floating balls, a connecting rod, a suction opening, the suction fan blades, a flexible outer pipe, the flexible conveying chain, a motor, a collector, a flexible central shaft and a connecting ring. The conventional active collecting device is changed to a fixed passive collecting device so as to greatly improve relatively working efficiency of the entire device and reduce the volume of the entire device to satisfy collecting requirements on small and medium-sized marine floating materials; the provided suction fan blades, flexible outer pipe and flexible conveying chains are driven by the motor, so that the garbage collecting efficiency is improved; the non-manual automatic movement of the device is realized through a positioning tracker and an electronic steering machine, thereby reducing the workload; the marine floating material collecting device is reasonable in structure, simple in principle, good in stability and friendly to application environments.

The invention discloses a high-power gyrotron collecting stage, which belongs to the field of high-power technologies of microwaves and millimeter waves, relates to a high-power gyroscope, and is a novel collecting stage structure for a high-power gyrotron. The collecting stage comprises a cylindrical inner wall and a plurality of cooling fins arranged outside the inner wall, wherein each coolingfin is of a spiral structure and surrounds the outer side of the inner wall, and a gap between the adjacent cooling fins is a spiral coolant passage; and the bottom of the spiral coolant passage is acorrugated structure. Through the design of the collecting stage with a special structure, the liquid cooling efficiency can be greatly improved, the collecting stage and the liquid cooling temperature can be lowered, and thus the power density per unit area of the collecting stage can be increased from 0.38kw/cm2 to 1.65kw/cm2, the collecting requirements of the gyroscopes with higher power can be met, and a smaller size can be realized.

The invention relates to a local communication converter and an automatic data synchronization method thereof. The automatic data synchronization method of the local communication converter comprisesthe following steps: S1, starting synchronization; S2, identifying whether a new transformer area local communication module exists or not; S3, acquiring a local communication module of the original transformer area; and S4, synchronizing the original transformer area local communication module to the new transformer area local communication module. According to the automatic data synchronizationmethod of the local communication converter, by synchronizing an original transformer area local communication module and a new transformer area local communication module, a solution for replacing and upgrading a universal product is formed, and the problems that an existing transformer area concentrator and the local communication modules are long in historical operation period, inconsistent instandard, different in parameter details and diverse in operation mode are solved; compatible operation and an installation-free and maintenance-free transformation process of a new local communication module in an original transformer area concentrator are ensured, the transformer area collection success rate is improved, and the collection requirement is met.

The invention discloses a core sample collecting method with a high recovery rate. The core sample collecting method comprises following steps: geological formation and underground water of a core sample collecting site are identified and monitored respectively, an appropriate drilling mode is reasonably selected, reasonable length of footage per round trip is selected, an aqueous polysaccharide vegetable glue solution is selected as flushing fluid, an appropriate sampler is selected for collecting a core sample in a core sample collecting site with normal-state formation, and the sampler is changed for fractured formation and serious fracture leakage formation in the core sample collecting site. According to the method, a drilling tool of the sampler is appropriately moved when cores areblocked in the core sample collecting process, immediate trip-out operation is performed during invalid drilling of the drilling tool, so that the problem of mutual abrasion of the cores due to long-term lifting motion and forced drilling or reduction of the core recovery rate is reduced because fine-particle cores at the bottom of a drill bit are washed away by the flushing fluid can be solved, and the core recovery rate can be effectively guaranteed.

The invention discloses a high-voltage switch characteristic detection system using image measurement technology. The high-voltage switch characteristic detection system comprises a high-voltage switch (circuit breaker); the output end of the high-voltage switch (circuit breaker) is connected with a CCD camera; the output end of the CCD camera is connected with an image acquisition device; the image acquisition device is connected with a computer; the output end of the CCD camera is also connected with a TTL flip-flop; the TTL flip-flop is connected with a switch signal detector; the input end of the switch signal detector is connected with the high-voltage switch (circuit breaker); the output end of the switch signal detector is connected with a timing connecting device; the output end of the timing connecting device is connected with the computer; the output end of the computer is connected with a switch control power source; the output end of the switch control power source is connected with a tripping coil; the tripping coil is in linkage with the normally-closed contact of the high-voltage switch (circuit breaker); and the computer is connected with a parameter calculation module and a relational database, and is provided with a communication interface, and is connected with a display device. According to the high-voltage switch characteristic detection system of the invention, advanced control equipment is adopted, so that detection can be more accurate.

The invention discloses an FPGA+DSP based rocket engine onboard fault diagnostic device. The FPGA and DSP combined dual-processor collaborative technology is adopted, and an analog-digital conversionchip is controlled through the flexible configuration capacity and the parallel computing capacity of an FPGA to achieve the rocket engine sensor data collection function and the outside input commandentering function. Data are transmitted to a DSP through a bus, only a fault diagnosis algorithm operates in the DSP, DSP operation loads are reduced, and the fault diagnosis algorithm is achieved through the strong operational capability of the DSP. According to the rocket engine onboard fault diagnostic device, a micro-processing module, a data collection module, a power module, a communicationmodule, a fault display and alarm module and a function module of a data storage unit are all integrated on a board card, corresponding interfaces are left, and the fault diagnostic device is high inintegration degree and small in size; and safety and reliability are achieved, maintenance and expansion are easy, and the fault diagnostic device can be used in multiple kinds of rocket engine onboard fault diagnosis.

The invention relates to the field of power monitoring, in particular to a power monitoring device. The wavelength and power monitoring device comprises an optical signal input end, a primary filtering module, a secondary filtering module and a PD receiving end which are arranged in sequence; a multi-wavelength optical signal is input from the optical signal input end, coarse filtering in a largerange is carried out through the first-stage filtering module, fine filtering in a small range is carried out through the second-stage filtering module, and then the multi-wavelength optical signal isincident to the PD receiving end, so that optical signal wavelength monitoring and power monitoring are realized. According to the invention, the two-stage filtering module is adopted to carry out secondary filtering on optical signals of an optical system, especially an optical fiber communication system, such as an optical communication WDM system, so that the acquisition requirement of a PD receiving end is met, and the wavelength monitoring precision and stability are improved; furthermore, the problems that the wavelength monitoring accuracy is inaccurate and configurable channel wavelength monitoring and compensation cannot be carried out are avoided.