25 results about "Monitoring methods" patented technology

The invention provides a monitoring method of the internal stress of a spacecraft composite material structure in an aging process. The method includes following steps: step1, placing carbon fiber prepreg, a special optical fiber, carbon fiber prepreg, demolding cloth, and adhesive-absorbing felt on a molding mold of the spacecraft composite material structure in sequence, and performing integral sealing by employing a vacuum bag; step 2, performing curing by employing an autoclave process, performing demolding after cooling, and obtaining the spacecraft composite material structure implanted with the special optical fiber at the inner part; and step 3, placing the spacecraft composite material structure in a clean factory building, and performing aging treatment on the spacecraft composite material structure by employing a natural aging method. According to the method, based on a back Rayleigh scattering principle, the special optical fiber is implanted in the spacecraft composite material structure, the monitoring of the internal stress in the aging process is realized by employing an optical frequency domain reflection technology, the spatial resolution is high, the measuring precision is high, the repeatability is good, and basis is laid for improvement of the aging method of the spacecraft composite material structure and the improvement of the dimension stability.

The invention provides a building deformation monitoring method based on three-dimensional laser point cloud geometric features. The building deformation monitoring method comprises the steps of three-dimensional laser data acquisition, multi-site cloud registration, single building extraction, building line-plane fitting, line-plane geometric parameter extraction, building deformation analysis and the like. According to the building deformation monitoring method based on features, the defects that in an existing method, the requirement for the precision of a three-dimensional laser scanner is harsh, multi-site cloud registration errors are likely to be introduced, and high-precision control point arrangement is needed can be overcome, point cloud distribution information obtained through three-dimensional laser scanning is fully utilized, the advantages of high precision and high stability brought by fitting of a large number of point clouds can be effectively utilized, the geometric features and change information of a building extracted from the three-dimensional point cloud can also reflect the deformation features of the building more visually, and safety monitoring data is effectively provided for construction and management of the building in time.

The invention discloses a landslide displacement monitoring device and method based on GNSS and MEMS sensors, the monitoring device comprises a base, a mounting block and an adjusting plate, the top of the base is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a threaded sleeve. The invention further provides a landslide displacement monitoring method which comprises the following steps: step 1, monitoring the displacement data of the landslide through the monitoring mechanism, and then sending the monitoring data to the processor through technologies such as remote wireless transmission; 2, the data are sent to a remote control center through a signal transmitter to be analyzed and processed, and real-time automatic analysis and early warning and automatic sending of early warning information are achieved; and 3, the signal receiver receives a remote control instruction, each module is controlled to start, and the angle of the adjusting plate is adjusted, so that the landslide is monitored more flexibly. According to the landslide monitoring equipment, through arrangement of the remote control adjusting mechanism, the adjusting plate can be freely adjusted, so that the use effect of the landslide monitoring equipment is improved.

The invention provides a traffic monitoring method and a traffic monitoring system based on unmanned aerial vehicle image recognition, and the traffic monitoring method comprises the following steps: S1, providing an unmanned aerial vehicle aerial traffic picture as a sample picture, and carrying out the vehicle marking of the sample picture through image marking software LabelImg, and forming a sample set; s2, preprocessing the sample set by adopting a data enhancement method to form a training set; s3, constructing a YOLO v3 model, training the YOLO v3 model through the training set, and obtaining the trained YOLO v3 model; and S4, receiving an aerial traffic image of the unmanned aerial vehicle in real time, inputting the aerial traffic image into the trained YOLO v3 model to monitor and analyze the vehicle, and calculating to obtain real-time traffic monitoring data. According to the traffic monitoring method and the traffic monitoring system, macroscopic and accurate monitoring data can be obtained in real time, and the traffic situation can be studied, judged and decided in time.

The invention relates to a monitoring method of a color sequence monitor. The method comprises the following steps: providing a first color backlight during a first frame period, activating multiple scanning lines according to a first scanning order; and providing a second color backlight during a second frame period, and activating scanning lines according to a second scanning order, wherein the first frame period and the second frame period are two adjacent frame periods, and the first scanning order is reverse to the second scanning order. The method can be used to effectively improve the color confusion phenomenon of the color sequence monitor.

The invention discloses a road-occupying operation monitoring method based on target detection and pedestrian tracking, and the method comprises the following steps: setting the position of a target monitoring region according to a video image obtained by a road monitoring camera, and carrying out the continuous image extraction of an input video stream according to a preset period, using the trained target detector to detect the lane occupying behavior; when the target detector detects that a road occupying behavior exists in the video image, starting to detect people appearing in the video image, and when people are detected, starting pedestrian tracking, and recording each person appearing in the video image and a movement track of each person; and analyzing the pedestrian trajectory data in the video stream, judging whether the pedestrian trajectory data accords with the road-occupying operation behavior characteristics or not, if so, triggering an alarm, and if not, ignoring the road-occupying behavior. According to the invention, by combining the moving track information of the person appearing in the monitoring scene, the road-occupying operation behaviors are automatically and accurately analyzed, researched and judged, temporary lane occupation and road-occupying operation events can be effectively distinguished, and the false alarm rate is reduced.

Methods for decentralized monitoring of a progression of a diabetic state of a patient include contemporaneously obtaining an initial set of venous blood samples and an initial set of capillary blood samples after a standardized metabolic challenge from the patient in a centralized setting, wherein the diabetic state is diagnosed using the initial set of venous blood samples and a first test baseline is established by correlating the initial set of capillary blood samples with the initial set of venous blood samples, implementing a therapy, performing decentralized testing after reaching a target event, wherein a status test is obtained from a status set of capillary blood samples obtained from the patient after a subsequent standardized metabolic challenge, and comparing the status test with the first test baseline to determine an effectiveness of the therapy.

The invention provides a lift shaft monitoring system and a monitoring method thereof. The lift shaft monitoring system comprises a lift shaft with a containing space, a lift car which does hoisting movement along the containing space of the lift shaft, a foreign matter detection system and a driving device for driving the lift car to move, wherein the foreign matter detection system comprises a light emitter, a light receiver and a controller; the light emitter covers a whole bottom wall of the lift car and emits longitudinal light for irradiating the light receiver; the light receiver is arranged at the bottom of the lift shaft and corresponds to the light emitter; the controller is connected with the light receiver and the driving device respectively. According to the lift shaft monitoring system and the monitoring method thereof, the foreign matter detection system is additionally arranged; when foreign matters appear in the lift shaft, the operation of the lift car can be stopped in time, so that on one hand, the lift car is protected from damages caused by the foreign matters; on the other hand, people and animals, who inadvertently stray into the lift shaft, are protected.

The embodiment of the invention discloses a monitoring method for a water feeding pump in a thermal power plant, a storage medium and an electronic device. The method comprises the following steps: acquiring real-time flow information flowing through a feed pump; using a preset neural network model to determine the prediction information of the running state of the feed pump corresponding to the real-time flow information; and detecting the internal leakage of the recirculation valve of the feed pump according to the prediction information of the running state of the feed pump and the real-time value of the running state of the feed pump.

The invention discloses a monitoring system based on an infrared detector. The monitoring system comprises a spherical sensor, a detection platform, a communication module and a monitoring client side, wherein the detection platform comprises a data processor for processing picture/ video information collected by the spherical sensor, the picture/ video information is uploaded to the monitoring client side, and meanwhile, a request from the monitoring client side is received; the communication module adopts WiFi or 4G for communication; a worker downloads a monitoring APP/ client side, and opens and registers an account for login; the spherical sensor transmits collected images to the monitoring client side; and finally, the collected images are displayed so as to be convenient for workersin checking. When infrared detection needs to be carried out, an infrared detection body can flexibly enter and leave a sphere, in addition, omnibearing detection can be carried out, an angle can beautomatically regulated for detection, intellectualization can be more easily realized, and the monitoring system can be widely applied to disaster relief detection, underground detection and the like.

The present invention provides an autonomous vehicle lane change monitoring method and lane change monitoring system, wherein the lane change monitoring system comprises at least a reference vehicle, a test road, a network communication device, and a control platform, wherein the reference vehicle and the to-be-tested vehicle traveling on the test road, wherein the control platform sends a control instruction to the reference vehicle and the to-be-tested vehicle through the network communication device for the to-be-tested vehicle to change lane on the test road when appropriate, the driving data of the to-be-tested vehicle is transmitted to the control platform through the network communication device, so as for the control platform to evaluate the lane change performance of the to-be-tested vehicle based on the driving data.

The invention discloses a monitoring method of an environmental magnetic shield of an electronic scanning microscope, and the monitoring method comprises the following steps that a line drawing of a silicon wafer to be measured is selected; a plurality of measuring points are selected on one side of the line drawing, measuring data of the measuring points are collected, and measuring data of relative points of the measuring points are collected on the other side of the line drawing; first difference values among the measuring data of corresponding points on the two sides of the line drawing are calculated; the maximum difference value and the minimum difference value among the first difference values are obtained, and a second difference value between the maximum difference value and the minimum difference value is calculated and is used as a measuring result; the measuring result is recorded in an environmental magnetic shield influence control chart; and according to the measuring result recorded in the environmental magnetic shield influence control chart every time, a dynamic monitoring chart of the influence of the environmental magnetic shield is obtained. The invention provides the method for monitoring the environmental magnetic shield of the electronic scanning microscope by utilizing the line width and the line width roughness of the measured drawing.

The invention discloses a settlement monitoring device and monitoring method for existing ground object under tunnel, comprising a monitoring host, a plurality of fiber grating sensors, a displacement sensor and a pressure sensor, the monitoring host is provided with a display screen and an audible and visual alarm, and the inner cavity of the monitoring host is provided with a control circuit board. According to the present invention, the working principle is simple, the intelligent degree is high, the existing ground object settlement signal can be monitored in real time, the early warning signal is immediately emitted once the settlement value exceeds the normal value, the measured settlement value is high in precision, and the safety of the existing ground object and the tunnel is ensured.

The invention provides a device and system for monitoring the state of a mudguard. Data acquisition terminals and a microprocessor transmit data mutually in a wireless manner, so that lots of complicated wiring is avoided, the flexibility and practicability of the device are improved, the device construction cost and construction difficulty are reduced, and the staff can carry out maintenance and repairing conveniently. A need of selecting more detection points is met; and acquisition units can be installed flexibly. A GPS positioning system is used for real-time positioning of a mudguard; the influence on the displacement of the mudguard position by factors like a water velocity can be eliminated during the analysis; and thus location information can be provided in real time in severe working environments like a windstorm day, so that a phenomenon that the staff comes and goes to the field frequently to determine the location of the mudguard is avoided and thus the time and manpower are saved. With the device provided by the invention, the reliability of the mudguard during construction is improved; the ecological safety during the construction process is enhanced; the practicability is high; and the device has broad market application prospects.

The invention relates to the technical field of channel monitoring, in particular to a channel monitoring method, a demodulation method, device, equipment and a storage medium. According to the invention, a sample signal transmitted in a channel is collected, frequency reduction processing is carried out on the sample signal by applying a linear optical sampling algorithm, the sample signal after frequency reduction is input into a hardware circuit, and the hardware circuit processes the sample signal after frequency reduction to obtain an output result for the sample signal after frequency reduction, and the performance of the channel can be obtained according to the output result. According to the invention, frequency reduction is carried out on the sample signal firstly, so that the sample signal after frequency reduction is matched with the bandwidth of the hardware circuit, thereby avoiding distortion of the sample signal caused by mismatching of the bandwidth of the hardware circuit and the frequency of the sample signal, and improving the accuracy of the obtained channel performance.

The invention discloses a tunnel deformation real-time monitoring system and monitoring method. The system comprises a deformation monitoring module, a data transmission module, a data analysis module and an alarm module, the deformation monitoring module comprises a plurality of monitoring units, each monitoring unit is erected on a cross section of a tunnel, the adjacent monitoring units are spaced by a preset distance, and each monitoring unit comprises a radar, a vault beacon, a side wall beacon and an arch foot beacon; wherein the radar is located at the position, away from the ground by a preset height, on the side wall of the tunnel; the vault beacon is positioned right above the vault of the tunnel; the side wall beacon is located on the other side wall of the tunnel; the arch springing beacons are located below the side wall beacons and are close to the arch springing of the tunnel; the vault beacons, the side wall beacons and the arch foot beacons are all-directional beacons. The tunnel deformation quantity can be monitored in real time under the condition that construction continuity is not affected.

A network congestion monitoring method (100) includes: using a WLAN radio (20) of a medical device (10) that is communicating over a WLAN channel according to a transmission scheme, monitoring networkevents indicative of WLAN network congestion on the WLAN channel; and at least one of: using the WLAN radio of the medical device, mitigating the congestion by adjusting the transmission scheme according to which the WLAN radio is communicating; and using the WLAN radio of the medical device, transmitting the network events indicative of congestion on the WLAN channel from the medical device to aWLAN network management system (32).

This invention provides one method for internet management agreement monitor method, which comprises the following steps: a, user side interface device receives the set broadcast label and public network label message; b, user side interface device researches the relative user network label user device according to the P-VLAN Tag and set label; c, user side interface device takes place of C-VLAN Tag and sends it to the user device.