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39results about How to "Get it directly" patented technology

Building fire situation assessment and personnel evacuating indication method and system

The invention discloses a building fire situation assessment and personnel evacuating indication method and system. The building fire situation assessment and personnel evacuating indication method includes steps: monitoring fire information timely and calculating fire source position information, fire source intensity information and fire development situation information according to the fire information; estimating personnel position information in all areas in a building and personnel density distribution in all the areas; and calculating a best evacuating direction and a best evacuating path according to the fire source position information, the fire source intensity information, the fire development situation information, the personnel position information and the personnel density distribution information in all the areas in the building and the building structure information. By adopting the building fire situation assessment and personnel evacuating indication method and system, a practicable solution is provided for personnel evacuating based on disaster development situation in the building by sufficiently using the modern techniques such as sensing, communication, calculating and decision making, and decision making and evacuating efficiencies are improved.
Owner:上海日浦信息技术有限公司

Insect flying form observing and dynamic characteristic testing device

ActiveCN103822665AAccurately record flight attitudeAccurately document propertiesMeasurement devicesFlapping wingPull force
The invention provides an insect flying form observing and dynamic characteristic testing device which comprises a base, an observing box, a stimulating module, a micro pulling force detecting module, an image collecting module and a controller. The observing box is arranged on the base and is used for placing of insects. The stimulating module is arranged on the side wall of the observing box and is used for stimulating the insects, and the insects are urged to fly or change the flying states of the insects. The micro pulling force detecting module is placed on the lower portion of the observing box and is used for computing the kinetic parameters during insect flying according to the displacement caused on the insects during insect flying. The image collecting module is used for collecting images of the flying states of the insects. The controller is arranged on the side face of the base and is connected with the stimulating module and the image collecting module respectively, and the controller is used for controlling the stimulating module and the image collecting module. According to the testing device, effective flying observing can be carried out on the insects, direct and accurate measuring can be carried out on the kinetic parameters during practical insect flying, accurate samples can be provided for insect flapping wing flying mechanism research, and meanwhile the device is simple in structure and low in cost.
Owner:TSINGHUA UNIV

Vehicle detection terminal, system and method

The invention discloses a vehicle detection terminal which comprises a micro-control unit, a voltage converter, a CAN (Controller Area Network) bus and an automatic sleep circuit. The automatic sleep circuit is electrically connected with a vehicle battery power supply, the micro-control unit and the voltage converter and comprises a voltage division circuit and a voltage comparator. The invention also provides a vehicle detection system which comprises a server, a handheld mobile terminal and the vehicle detection terminal. The vehicle detection terminal comprises a bluetooth module. The invention also provides a vehicle detection method which comprises the following steps of: adopting a vehicle detection terminal automatic sleep method and carrying out voltage division on a voltage input by the vehicle battery power supply; comparing the voltage obtained after voltage division with a preset voltage threshold value; if the voltage obtained after voltage division is lower than the preset voltage threshold value, judging that a vehicle is flamed out, and if the voltage obtained after voltage division is higher than the preset voltage threshold value, judging that the vehicle is not flamed out; and when judging that the vehicle is flamed out and a control signal enters a sleep state, ensuring the vehicle detection terminal to enter a sleep state.
Owner:BEIJING WISELINK SOFTWARE

Vehicle color identification method based on target identification area interception

The invention relates to a vehicle color recognition method based on target recognition area interception, and belongs to the technical field of vehicle color recognition, and the method comprises thesteps: obtaining a picture containing a to-be-detected vehicle; performing target detection on the to-be-detected picture to obtain an image of the to-be-detected vehicle; extracting vehicle window area information of the to-be-tested vehicle to obtain coordinate values of four corners of a front vehicle window; removing a part of detection pictures with too low resolution; intercepting a vehicleengine hood area as a target identification area of the picture by utilizing the colinearity and parallelism of the boundaries of the vehicle window and the vehicle engine hood; carrying out saturation enhancement processing on the extracted vehicle engine hood area image; and performing color recognition on the saturation-enhanced vehicle engine hood image by using the RGB color recognition model and the HSV color recognition model, and outputting a final recognition result. According to the method, the problem that in traditional vehicle color recognition, interference areas such as backgrounds and vehicle windows influence vehicle body color recognition is solved, and the accuracy and robustness of vehicle color recognition are improved.
Owner:SHANDONG LINGNENG ELECTRONIC TECH CO LTD +2

River reservoir bank deformation data automatic collection and processing method based on ground stable platform SAR

The invention provides a river reservoir bank deformation data automatic collection and processing method based on a ground stable platform SAR, and belongs to the field of deformation monitoring. Themethod can be applied to the deformation monitoring of a river reservoir bank under the condition of complicated topography and landforms. According to the method, firstly, a GB-SAR is used for continuous observation to obtain monitoring data and to obtain an SAR original image; then, multiple images are subjected to a series of processing to obtain an interference pattern and a coherence pattern; next, an algorithm is used for extracting a coherence point; next, each pixel in the coherence pattern is subjected to phase unwrapping; next, an atmosphere phase is removed by using an atmosphere model; next, a deformation value is calculated according to the real phase of the deformation; and finally, the geocoding is performed according to the corner reflector geographical coordinate, and a coded deformation pattern is obtained. The river reservoir bank high-slope deformation monitoring technology is finally realized. The technology can be used for fast and accurately obtaining the slopedeformation information; the detection precision on the slope is improved; and the correct evaluation is made on the slope stability.
Owner:WUHAN UNIV

Passenger car dead zone auxiliary monitoring system and method

The invention discloses a passenger car dead zone auxiliary monitoring system and method. The passenger car dead zone auxiliary monitoring system comprises a six-channel camera, a monitoring and processing unit, a vehicle-mounted computer ECU, a 360-degree panoramic looking around system, a display screen and a central warning processor, the six-channel camera is used for collecting image information, and the six-channel camera is connected with the monitoring and processing unit. According to the dead zone auxiliary monitoring system, omni-directional dead-zone-free monitoring video can be carried out on the outside of a vehicle, a combined picture of the display screen of the vehicle shifts functions automatically, a driver can be enabled to obtain dead zone image information more directly, the front secondary dead zone safety risk brought by wide-angle turning of the driver is avoided, and meanwhile, the fatigue strength caused by the driver frequently turning to watch a plurality of rearview mirrors and thinking behaviors is reduced. According to the passenger car dead zone auxiliary monitoring system and method, monitoring video is carried out on the outside of the vehicle inan omni-directional dead-zone-free mode through the combined monitoring of the 360-degree panoramic looking around system and the six-channel camera, and complex movements such as turning and turningaround from right front/left front areas of rear wheels to the front 5-10 meters of a vehicle head can be solved.
Owner:ANHUI ANKAI AUTOMOBILE

Vehicle detection terminal, system and method

The invention discloses a vehicle detection terminal which comprises a micro-control unit, a voltage converter, a CAN (Controller Area Network) bus and an automatic sleep circuit. The automatic sleep circuit is electrically connected with a vehicle battery power supply, the micro-control unit and the voltage converter and comprises a voltage division circuit and a voltage comparator. The invention also provides a vehicle detection system which comprises a server, a handheld mobile terminal and the vehicle detection terminal. The vehicle detection terminal comprises a bluetooth module. The invention also provides a vehicle detection method which comprises the following steps of: adopting a vehicle detection terminal automatic sleep method and carrying out voltage division on a voltage input by the vehicle battery power supply; comparing the voltage obtained after voltage division with a preset voltage threshold value; if the voltage obtained after voltage division is lower than the preset voltage threshold value, judging that a vehicle is flamed out, and if the voltage obtained after voltage division is higher than the preset voltage threshold value, judging that the vehicle is not flamed out; and when judging that the vehicle is flamed out and a control signal enters a sleep state, ensuring the vehicle detection terminal to enter a sleep state.
Owner:BEIJING WISELINK SOFTWARE

Ionized layer vertical electron density measurement method

PendingCN114137574AImproved satellite navigation accuracyImproved performance of satellite communicationsSatellite radio beaconingComputational physicsIonosphere
The invention discloses an ionosphere vertical electron density measurement method. In the first time period T, meteoric trail communication equipment outputs n Tp (t). Querying the value of the VP (t) according to the value of each Tp (t) in the Tp (t) and VP (t) corresponding table; the duration time Tp (t) of the meteoric trail signal intensity P and the vertical electron density of the ionized layer outside the meteoric trail area are measured, namely, the vertical electron density V (t) of the meteoric trail background ionized layer is measured; obtaining the mean value V of the vertical electron density V (t) of the background ionized layer of the meteoric trail area in the time period T; obtaining dv (t) and f (TP (t)); f (TP (t)) is the vertical electron density V of the background ionized layer of the region in the time period as the mean value of V (t) in the time period T. According to the ionosphere monitoring based on the GNSS signal, the inversion algorithm is adopted to calculate the electron density of each layer of the ionosphere, the obtained meteoric trail background ionosphere vertical electron density V is more accurate, and the disclosure of the activity rule of the ionosphere in the region is more real and powerful. The method can be widely applied to the fields of satellite navigation precision improvement, satellite communication performance improvement and short-wave communication rapid frequency selection.
Owner:中国人民解放军火箭军工程大学
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