30results about How to "Realize no dead angle detection" patented technology

The invention discloses a foldable bridge detecting arm and a detecting vehicle. First slide rails are fixed on the upper surface of a support arm; first slide bars are projected on the two sides of the first slide rails, and are slidingly connected with bridge detecting devices; a flexible slide rail is fixed on the upper surface of the hinged place of the slide rails; the adjacent first slide rails are connected through the flexible slide rail; second slide bars matched and fixedly connected with the first slide bars are formed on the flexible slide rail; a rotating mechanism is connected tothe hinged place of the support arm; and n is not smaller than 3. The foldable bridge detecting arm is simple in structure and convenient to use; and operation rails of the bridge detecting device can be changed according to bridge bottom structures to adapt to the corresponding bridge bottom structures, so that no-dead-angle detection of the bridge bottoms is realized, the detecting effect is guaranteed, the crack detecting rate of bridges is increased, and the bridges are timely cured to prolong the life.

The present invention provides an automatic driving method and system. Firstly, the corresponding relationship between the vehicle body parameters, the vehicle speed and the optimal steering angle of the vehicle is obtained and the corresponding relationship is stored; when the optimal maneuvering strategy is lane switching, Adjust the driving state of the motor vehicle to an ideal state during overtaking and steering maneuvers; then obtain the speed of the motor vehicle and the wheelbase of the front and rear wheels of the motor vehicle; compare the speed of the motor vehicle with the corresponding relationship to obtain the best steering angle of the motor vehicle; The optimal steering angle of the motor vehicle and the wheelbase of the front and rear wheels of the motor vehicle are used to obtain the turning radius of the motor vehicle; finally, the trajectory of the lane switching path can be planned according to the optimal steering angle of the motor vehicle and the turning radius of the motor vehicle. Therefore, the present invention provides an automatic driving method and system capable of accurately planning the lane switching path trajectory of a motor vehicle in an automatic driving state according to an optimal maneuvering strategy, and provides the most accurate reference for the automatic driving of a motor vehicle.

The invention discloses a 360° detection sensor based on an area array CCD / CMOS and a detection method, including an area array CCD / CMOS sensor, a conical mirror, a light-shielding tube, a light source, a collimating lens, an optical filter, a cylindrical window, Circular aperture diaphragm, after the light source passes through the collimating lens, after being emitted through the conical mirror, it is emitted through the cylindrical window, and after meeting the reflector, it is reflected by the reflector through the conical mirror, and then emitted through the conical mirror, and the light passing through the circular aperture Diaphragm, filter reflected to the area array CCD / CMOS sensor. Correspondingly, a detection method based on the above-mentioned area array CCD / CMOS 360° detection sensor is also provided. The present invention realizes 360° no dead angle detection, realizes full coverage detection of one machine, or area detection, and can be used for perimeter collision avoidance , area security, contour detection, contour detection, angle tilt and other applications. In addition, the method of image difference is adopted, which has strong anti-interference ability to the environment.

The invention relates to an indoor four-rotor unmanned aerial vehicle 360-degree three-dimensional obstacle avoidance system and belongs to the control science and control engineering field. When a four-rotor unmanned aerial vehicle cruises indoors to perform tasks such as rescue and relief work, problems can be brought to the flight of the four-rotor unmanned aerial vehicle caused by relatively complex indoor environment, weak GPS signals and difficulty in deploying peripherals, and in order to solve the above problems, the four-rotor unmanned aerial vehicle 360-degree three-dimensional obstacle detection and obstacle avoidance decision making device is designed. An STM32f103 is adopted as a core processor, and the number and the positions of ultrasonic sensors are reasonably configured, so that a model for acquiring surrounding environment information is constructed, and therefore, three-dimensional obstacle detection can be realized. When the four-rotor unmanned aerial vehicle performs a task, the obstacle avoidance decision making system performs Kalman filtering processing on acquired obstacle distance values and thereafter, performs data fusion based on directions, and performs obstacle avoidance decision making based on fused data through a fuzzy logic algorithm, and sends an obstacle avoidance decision to a flight controller through a serial port; and the flight controller controls the flight attitude of the unmanned aerial vehicle to complete an obstacle avoidance task.

The invention provides a portable power plant pressure pipeline detection device, which relates to the technical field of pipeline detection, and solves the problem that 360-degree rotation detection without dead angle cannot be achieved through structural improvement, and the detection of dust on the pipeline and the detection head is not enough during rotation detection. Automatic cleaning; it is impossible to achieve structural coordination through structural improvements, such as the problem of realizing cleaning of the cleaning head while rotating detection and realizing extended air jet cleaning. A portable power plant pressure pipeline detection device includes a main body seat; an action structure is installed on the main body seat, and a detection structure is also installed on the main body seat. Through the cooperation of the gear B and the connecting pipe, because the connecting pipe has a Z-shaped structure, and the connecting pipe is in contact with the gear B, the continuous vibration of the connecting pipe can be realized when the gear B rotates, and the dust on the nozzle can be shaken off. As well as extending the air jet cleaning range.

The invention discloses a method for laying out a Beidou GNSS monitoring system based on slope stability analysis, comprising: establishing a three-dimensional geological model of the slope through oblique photography and dividing a typical two-dimensional section to establish a two-dimensional analysis model; obtaining the rock and soil of the slope The physical and mechanical parameters of the body; the numerical analysis method is used to calculate the slope stability of the two-dimensional analysis model under extreme conditions, and the dangerous sliding surface is obtained; taking the obtained sliding surface as a reference, the leading edge of the landslide is cut and the trailing edge is pulled The fissure zone is projected to the corresponding position of the three-dimensional geological model to form a dangerous sliding surface projection line from the trailing edge to the leading edge of the landslide, and the Beidou GNSS monitoring instrument is arranged to form a monitoring area; different profile lines are selected, and the above steps are repeated. The Beidou GNSS monitoring instruments are deployed to form multiple monitoring areas. The present invention realizes the deployment of the monitoring network; realizes 360° no dead angle detection in the field, and has strong applicability; combines numerical simulation with engineering practice, and improves the monitoring work efficiency.

The invention discloses a foldable bridge detection arm and a detection vehicle. A first slide rail is fixed on the upper surface of the support arm; first slide bars are formed on both sides of the first slide rail; A bridge detection device is connected; a flexible slide rail is fixed on the upper surface of the slide rail hinge; the adjacent first slide rails are connected to each other through flexible slide rails; the flexible slide rail is formed with a second A slide bar; a rotating mechanism is connected to the hinge of the support arm; n≥3. The invention is simple in structure and easy to use, and can change the running track of the bridge detection device according to the structure of the bridge bottom to adapt to the corresponding bridge bottom structure, realizes no dead angle detection of the bridge bottom, ensures the detection effect, and increases the detection of bridge cracks rate, which is conducive to timely maintenance of the bridge and prolonging the life of the bridge.

The invention discloses a detection device for cracks in bridges, comprising a flat plate, a first flaw detection device, and a second flaw detection device. A control box is arranged on one side above the top of the flat panel. The second flaw detection device of the present invention detects cracks on the inside and outside of the side wall of the guardrail by changing different angles through the rotating lifting device, and adjusts the angle of the second flaw detection device through the angle adjustment device to detect cracks on the bottom of the bridge. The inner side and outer side of the wall and the bottom of the bridge are all tested by the second flaw detection device, which reduces the production and use costs and improves the scope of application of the device. The first flaw detection device can move in the length and width directions of the surface of the bridge to realize There is no dead angle detection on the surface of the bridge, which improves the working efficiency of the device.

The glass bottle online detection system provided by the present invention includes a detection device consisting of a pair of cameras and a light source. The camera is connected to an industrial computer; A turntable with multiple notches, the turntable is vertically arranged, its axis of rotation is parallel to the horizontal plane, a bottle seat is installed in the notch, the bottle seat has a groove matching the glass bottle, and a through hole is arranged in the groove; the turntable passes through the transmission The shaft is connected with the servo motor, and the transmission shaft is installed on the frame through a bearing seat. The present invention adopts a turntable bottle-taking device, installs a bottle holder in the notch of the turntable, uses negative pressure to absorb the glass bottle in the bottle holder, and can replace the bottle holder according to the outer diameter of the glass bottle, avoiding the replacement of the entire bottle-taking device, save costs.

The invention discloses a small vehicle for collecting field crop growth data information, which relates to the technical field of precision agriculture, including a vehicle body, a driving mechanism for driving the vehicle body to move and installed at the bottom thereof, a data acquisition module for field information collection, The folding mechanism used to drive the unfolding and storage of the data acquisition module and the rotating mechanism used to drive the rotation of the folding mechanism, the present invention includes two large data acquisition modules, one is the information collection of the field surface environment, such as environmental temperature and humidity, illuminance, etc. The second is soil information collection. The former is realized by means of a folding mechanism and a rotating mechanism, and the latter is realized by means of an information collection mechanism. In the collection trolley, the mobile collection of field information is realized. Compared with the traditional collection method, the flexibility is high, and the collection efficiency and accuracy have also been improved.

The invention discloses a multi-mode data collecting device installed on an unmanned small vehicle and used for collecting field crop growth data information, and relates to the technical field of precision agriculture. The multi-mode data collecting device comprises a vehicle body, data collecting modules used for collecting field information, a folding mechanism used for driving the data collecting modules to be unfolded and folded and a rotating mechanism used for driving the folding mechanism to rotate. The multi-mode data collecting device comprises the two data collecting modules, one data collecting module is used for collecting information of a field earth surface environment, such as environment temperature and humidity and illumination intensity, the other data collecting moduleis used for collecting soil information, the former is realized through the folding mechanism and the rotating mechanism, and the later is realized through an information collecting mechanism, and thecollected information is transmitted to a remote server through a corresponding wireless transmission module, so that remote collection is realized.

The invention discloses a small vehicle for field crop management with an accurate spraying function, and relates to the technical field of accurate agriculture, the small vehicle for field crop management with accurate spraying function comprises a vehicle body, a walking mechanism, a data acquisition module and a folding mechanism, a rotating mechanism, a spraying mechanism, wherein the walkingmechanism is used for moving the vehicle body and is arranged at the bottom of the vehicle body, the data acquisition module is used for acquiring field information, the folding mechanism is used fordriving the data acquisition module to be unfolded and stored, the rotating mechanism is used for driving the folding mechanism to rotate and a spraying mechanism is used for spraying operation. By means of a trolley, the mobile collection, real-time judgment and analysis, and real-time follow-up spraying of field crop information are achieved, the trolley can penetrate into a field crop plantingarea and is close to occurrence point of crop diseases, pests and weeds, the pesticide is accurately applied, the problem that the traditional pesticide is sprayed in a large area is solved, the collection efficiency and the accuracy are improved, the field crop and position information can be transmitted to a remote server in real time by means of a WiFi module or a 4G communication module so asto realize remote real-time collection.

The invention relates to an engineering machine safety rail device and a control system and method. The rail device comprises a plurality of rail units (1), the rail units (1) are used for surrounding an engineering machine (3) to form a safe construction area, and each rail unit (1) comprises a light sending component (13), a light receiving component (14) and a rail unit control component (12). The rail unit control components (12) can control the light sending components (13) and the light receiving components (14) of the adjacent rail units (1) to receive and send light signals, and when the light receiving components (14) in the rail units (1) do not receive the light signals, signals that personnel or objects enter the safe construction area of a remote monitoring unit (5) are sent. According to the safety rail device, whether people or objects span rails or not can be judged accurately in time, dead-angle-free detection is achieved, flexible arrangement can be carried out according to the safe construction area, use is convenient, and the cost is low.