32results about How to "High frequency of data collection" patented technology

The invention discloses a microscopic section rapid digital scanning device and method with the real-time focusing function. The microscopic section rapid digital scanning device comprises a digital microscopic imaging system and a real-time focusing device combined with the digital microscopic imaging system in a matched mode. The digital microscopic imaging system comprises a computer, an image detecting device for achieving photovoltaic conversion, a microscopic optical imaging system, an automatic carrying table, a movement and control system corresponding to the automatic carrying table, a microscope lighting optical system, a lighting light source and the like. The real-time focusing device comprises a device for measuring the defocusing amount of a sample and a device for driving the sample or a lens to move and enabling the sample and the focal plane of the lens to be coincided. According to the microscopic section rapid digital scanning device and method, the distance between the sample and the focal plane of the imaging system in the section scanning process can be detected in real time, real-time focusing can be achieved, and therefore an excellent image is obtained; the time-consumed focal plane modeling process can be omitted through the real-time focusing technology; meanwhile, the large focusing range and the high focusing accuracy are both considered; in addition, the microscopic section rapid digital scanning method is high in efficiency and low in cost.

The invention discloses an icing prediction and early-warning method of power transmission lines. The method comprises that image information and meteorological parameter information, collected by an unmanned plane, of the power transmission lines are obtained; whether icing occurs in the power transmission lines is determined according to the image information collected by the unmanned plane of the power transmission lines and image information of normal power transmission lines; if icing occurs, the icing thickness is calculated and displayed; according to the image information and meteorological parameter information, collected by an unmanned plane, of the power transmission lines, future icing growth condition of the power transmission lines is predicted, so that ice melting is carried out according to the icing growth condition; whether the meteorological parameter information reaches an early-warning value is determined; and if the meteorological parameter information reaches the early-warning value, the meteorological parameter information is transmitted to an expert system, and the expert system improves the data collection frequency of the unmanned plane. Management staff can know practical onsite conditions of the lines timely through the method, ice melting measures are taken on the basis of foundations, and technical support is provided for decision making in icing disaster rescue.

The invention discloses a device and a method for measuring a mass flow rate of solid particles in a gas-liquid two-phase flow. According to the device and the method, a high-pressure gas bottle is used for providing fluidized gas to enter a power supplying system to carry solid powder, so as to form a gas-solid two-phase flow; the gas-solid two-phase flow enters a cyclone separator through a two-phase inlet along the tangential direction of the inner wall of a cylinder of the cyclone separator; the speed of the two-phase flow is reduced rapidly because an air pressure is reduced rapidly by the inner cavity of the cyclone separator; the solid powder slides down into a powder depositing cylinder along the inner wall of the lower end of the cyclone separator; meanwhile, the fluidized gas penetrates through a powder screening net to be discharged under the common effect of a pressure difference and an air exhauster. The mass of the powder in the powder depositing cylinder weighed by an electronic scale in real time and is transmitted to a data acquisition computer by a data line, so as to obtain the mass flow rate of the soli powder in the gas-liquid two-phase flow. According to the device and the method for measuring the mass flow rate of the solid particles in gas-liquid two-phase flow, the measurement of the mass rate of the supplied solid powder is realized; the working of the cyclone separator is stable and reliable in a measurement process and the whole measurement precision is higher.

The invention provides a method, data acquisition server and system for intelligent meter data acquisition integrity. The data acquisition server is used for acquiring data of various intelligent meters in a power supply network and conducting data interaction with a data acquisition strategy server of the power supply network, and the data acquisition strategy server is in communication with a monitoring sub-center server of the power supply network through the Internet. The data acquisition server comprises an eMMC storage unit, a data acquisition unit, a communication unit and a control unit, wherein the control unit is used for controlling the data acquisition unit to regularly acquire the data of the meters in the power supply network, the eMMC storage unit is used for storing the acquired data, and the communication unit is used for sending the acquired data to the data acquisition server under the condition that the network is normal. According to the acquisition card and system, the storage unit is installed at the data acquisition mainboard side, and thus the problem of data concurrency is greatly solved; the data of all the meters can be stored in an integrated mode, and thus the integrity of the acquired data is guaranteed.

The technical scheme of the invention includes a bed, a protection and control system, a power and transmission system, an upper transmission and force measuring mechanism, a crank connecting rod andworkpiece clamping adjustment mechanism and a fixture; the protection and control system, the power and transmission system, and the upper transmission and force measuring mechanism are connected to the bed by bolts; the crank connecting rod and workpiece clamping adjustment mechanism is connected to a driving shaft of the power and transmission system through a bearing; and the fixture is connected to the crank connecting rod and workpiece clamping adjustment mechanism through a clamping positioning block. The function is to realize the approximate sinusoidal harmonic motion by using a servomotor to drive a crank connecting rod mechanism; a force measurement sensor and a displacement sensor measure the damping force of a damper and the displacement of a damper piston rod; an industrial personal computer calculates and analyzes the sensor data, and displays the damper performance result. The invention is high in test efficiency, is suitable for online testing of a production line, iscompact in structure, and is stable and durable.

The invention provides a wireless interactive goaf multi-field coupling data collection system and a using method. The wireless interactive goaf multi-field coupling data collection system comprises adata collector placed in a goaf and used for collecting data, a signal amplification device used for amplifying signals, a device protector used for protecting the data collector and the signal amplification device, a downhole data receiving station used for receiving data information, a ground control panel used for controlling the data collection system and storing and displaying the collecteddata, a downhole movable control panel and a tracer gas release device used for releasing tracer gas to the goaf. According to the wireless interactive goaf multi-field coupling data collection systemand the using method, the data such as a pressure field, a seepage field, a velocity field, a gas concentration field and a temperature field of the goaf in the mining process of a working surface can be collected, and basic data can be provided for research of analyzing a mutual effect law of the fields of the goaf, giving the temperature rising characteristics of spontaneous combustion oxidation of residual coal in the goaf with the universality, and formulating efficient prevention measures of spontaneous combustion of the residual coal. According to the wireless interactive goaf multi-field coupling data collection system and the using method, site selection at goaf inner measuring points is more flexible, device installation is more convenient, the number of the measuring points canbe set freely, the stability of the system is more reliable, and data collection is more timely and accurate. Therefore, the device is low in cost and convenient to operate, and has wide applicability.

The method of acquiring node information in computer group system runs in all the nodes of the computer group system. The method includes the following steps: the initialization step of initializing system call list; the information acquiring step including obtaining CPU relating information from the kernel, obtaining network interface information from the kernel and obtaining system relating information from the kernel; and the information copying step of copying the obtained information to the user state for the monitoring of node state. The method raises the monitoring system allowable data acquiring frequency and lowers the occupation of monitoring to system resource.

The invention provides a data acquisition terminal and method based on a space-based data integrated acquisition system. The data acquisition terminal based on the space-based data integrated acquisition system comprises a signal receiving module used for receiving a first satellite signal sent by a first satellite, and recording the first satellite signal as to-be-sent data; a control module, which is electrically connected to the signal receiving module, a signal sending module and a solid state storage module, and used for sending the to-be-sent data to the solid state storage module when determining that a distance between a second satellite and an Internet of Things data transmission terminal is greater than or equal to a preset distance; and the solid state storage module, which is electrically connected to the control module and used for storing the to-be-sent data sent by the control module. The technical scheme of the invention is beneficial to improving the integrity of dataacquired in multiple continuous sampling periods, reducing the possibility of acquired data loss, and improving the response rate of processing the to-be-sent data.

The invention provides a mass concrete temperature control automatic integrated system. The mass concrete temperature control automatic integrated system comprises master control equipment, a pipelineassembly, a temperature measuring assembly and a cooling assembly. The input end of the master control equipment is electrically connected with the temperature measuring assembly, the output end of the master control equipment is electrically connected with the cooling assembly, and the cooling assembly controls on-off and opening degree of the pipeline assembly. The pipeline assembly consists ofa plurality of cooling pipes, each cooling pipe comprises an air cooling pipe and a water cooling pipe, the flow directions of the air cooling pipes and the water cooling pipes are opposite, and theproblem that cooling in the same horizontal layer is not uniform and asymmetric is effectively avoided. The cooling assembly comprises air cooling equipment and a circulating cooling water system, andthe air cooling equipment communicates with the air cooling pipes. The circulating cooling water system comprises a circulating cooling water tank, a variable-frequency water pump and adjusting valves arranged on the air cooling pipes and the water cooling pipes, the variable-frequency water pump and the adjusting valves are electrically connected with the master control equipment, and the mastercontrol equipment adjusts the ventilation quantity and/or water flow of the air cooling pipes and the water cooling pipes according to the temperature of the temperature measuring assemblies and controls concrete circulating cooling.

The invention relates to the technical field of network monitoring, and discloses a multi-stage variable-frequency network monitoring data acquisition method. The method comprises the following steps that S1, a timed scheduling module loads acquisition task information from a database to generate timed scheduling tasks with high, medium and low frequencies for each acquisition task, and generates different frequencies to facilitate scheduling. The invention further provides a multi-stage variable-frequency network monitoring data acquisition device, and the device comprises a system module assembly; the system module assembly comprises a timing scheduling module, a parallel data acquisition module, a parallel data processing module, a frequency conversion boundary calculation module and a frequency conversion control module. According to the method, the data acquisition frequency is temporarily improved when the dispersion degree of data acquired by equipment is increased or an alarm is given, and the self-adaptive capability of the acquisition frequency is reduced after a fault is eliminated or the dispersion degree of the data is reduced, so that the data acquisition efficiency, the resource utilization efficiency and the overall monitoring sensitivity of the system are effectively improved.

The invention relates to the field of geological disaster prevention and control, and discloses a dangerous rock collapse monitoring system and method.The dangerous rock collapse monitoring system comprises dangerous rock state monitoring devices, a data acquisition and analysis device, a power supply device and a background server, wherein the dangerous rock state monitoring devices are arranged on the periphery of dangerous rock to monitor dangerous rock state information in real time; the data acquisition and analysis device acquires and analyzes state information in a certain period and outputs analysis data, the background server receives and displays the analysis data, and an alarm prompt is given when data abnormity exists. According to the invention, a monitoring mode with a vibrating wire sensor as a main part and an acceleration sensor as an auxiliary part is adopted, the change stress value of the vibrating wire sensor is a reliable and special means for monitoring deformation and collapse of the rock mass, the design deficiency of a collapse meter with an accelerometer as a main part is made up, the change process of the stress value of the rock mass can be really monitored, and pre-warning of collapse is realized; and short and precious time is provided for evacuation of the masses.

The invention provides a bridgehead bumping judgment method based on a point cloud technology. The method comprises: arrangement and collection of a point cloud scanner, generation of a three-dimensional landform, preprocessing of point cloud data, gridding of the point cloud data, elevation plane fitting, generation of an elevation difference matrix, and judgment and treatment of the severity of bridgehead bumping. The method can be used for judging the full-width road bridgehead bumping condition, is high in detection speed, high in precision and large in detection range, breaks through the obstacle that only a single side line can be detected in the past, ensures the accuracy of quick judgment of bridgehead bumping, and can find problems in time and dispose the problems in time. The method has important practical significance for improving the road maintenance level, guaranteeing the road driving quality and guaranteeing the road safety, and can be widely applied to judgment of high-grade road bridgehead bumping.