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

The invention provides an automatic driving method and an automatic driving system. A corresponding relation among vehicle body parameters of the motor vehicle, a vehicle speed and an optimum turning angle of the motor vehicle are acquired firstly; a driving state of the motor vehicle is adjusted to be an ideal state when optimum maneuvering strategies are lane switching, overtaking and turning driving maneuvering operation; the speed of the motor vehicle and a distance of front and back wheel shafts are acquired; contrast between the speed of the motor vehicle and the corresponding relation is carried out to acquire an optimum turning angle of the motor vehicle; a turning radius of the motor vehicle is acquired according to the optimum turning angle of the motor vehicle and the distance of the front and back wheel shafts; and a lane switching path locus of the motor vehicle can be planned according to the optimum turning angle and the turning radius of the motor vehicle. Through the method and the system, the lane switching path locus of the motor vehicle under an automatic driving state can be planned according to the optimum maneuvering strategies, and most accurate reference basis is provided for automatic driving of the motor vehicle.

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 discloses a double-chamber high-voltage soft bag detector. A detection channel device is arranged on a frame; a feeding mesh belt is arranged at the feeding end of the detection channeldevice, and an output mesh belt is arranged at the discharge end; a waste removing device is arranged above the output mesh belt; the detection channel device comprises a wavy soft bag conveying beltformed by connecting a plurality of power rollers side by side through a connecting belt; a bag head detection device and a bag body detection device are arranged on a detection station of the soft bag conveying belt; the bag body detection device comprises a bag body front side detection device and a bag body back side detection device; the bag body detection device is arranged at the inclined plane position of the soft bag conveying belt, and the inclined plane is formed by connecting at least two power rollers through the connecting belt. and a bag tail clamping device is arranged above thesoft bag conveying belt. The detection stability can be improved, ridge type conveying is adopted, and the detection sensitivity is improved; detection electrodes are arranged in a crossed covering manner to reduce false detection; and the detection electrodes can be automatically adjusted according to the bag body contour, and the leakage point capture sensitivity is improved.

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 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 invention discloses an inspection machine, which is used to detect batteries with a clamp. The inspection machine comprises a feeding mechanism (2); a loading mechanism, which is connected to thedischarge position of the feeding mechanism (2) and is provided with a loading rotation disc (3); a detection mechanism, which is connected to the switch position of the loading rotation disc (3) andis provided with a test rotation disc (5); and a shunting mechanism, which is connected to the discharge position of the test rotation disc (5) and is connected to a discharge rotation disc (6). All test positions of the test rotation disc (5) are provided with a detection assembly. The test position that is corresponding to the head light tube detection assembly and the tail light tube detectionassembly of the detection assembly is provided with a rotation mechanism (4). The rotation mechanism (4) can clamp a battery, rotates the battery in 180 degrees, and put the battery on the test position. The head light tube detection assembly and the tail light tube detection assembly can detect the front side and rear side of the battery. The inspection machine solves the problems of low detection precision and low yield of qualified products.

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 provides a portable power plant pressure pipeline detection device, relates to the technical field of pipeline detection, and solves the problems that 360-degree dead-angle-free rotation detection cannot be realized through structural improvement, and dust on a pipeline and a detection head cannot be automatically cleaned during rotation detection. Structural cooperation cannot be achieved through structural improvement, for example, cleaning of a cleaning head is achieved while rotating detection is conducted, and expanded air injection cleaning is achieved. A portable power plant pressure pipeline detection device comprises a main body seat. The main body seat is provided with an action structure, and the main body seat is also provided with a detection structure. Through cooperative arrangement of the gear B and the connecting pipe, the connecting pipe is of a Z-shaped structure, and the connecting pipe makes contact with the gear B, so that continuous vibration of the connecting pipe can be achieved when the gear B rotates, dust on the spraying pipe is shaken off, and the air spraying cleaning range is expanded.

The invention relates to an active detection device for crosswalks and a detection method thereof. The active detection device is characterized in that two wide edges of the crosswalk are respectivelyprovided with a standing stone; the detection device comprises detection components and ground prompting lamps; the detection components are arranged on the standing stones and detect whether pedestrians exist on the crosswalk; two long edges of the crosswalk are respectively provided with the ground prompting lamp; the ground prompting lamps and the detection components are respectively and electrically connected with a controller, and when the detection components detect the pedestrians on the crosswalk, the ground prompting lamps project lights towards the crosswalk so as to make the pedestrians on the crosswalk discovered by drivers. The active detection device for crosswalks and the detection method thereof have the beneficial effects that the pedestrians crossing the crosswalk can be actively detected by the detection components in real time, and when the pedestrians on the crosswalk are detected, the ground prompting lamps are controlled to be lighted and emit lights towards the drivers actively for prompt so as to ensure the safety of the pedestrians crossing the streets at night and safety and high-efficiency passage of the roads are ensured.

The invention provides an auxiliary tool for ultrasonic testing of high-voltage electrical appliances and belongs to the technical field of electric tools. The auxiliary tool comprises a rod, a support, a detector, a detecting head and a detecting instrument, wherein the rod is of a telescopic rod structure, the support is arranged at the upper end of the rod, the detecting head is arranged in the support, a rod control pin is arranged at the lower end of the rod and controls extension and shrinking of the rod, the detecting head is connected with the detecting instrument, and the detecting instrument receives and displays detecting information of the detecting head. The support can be adjusted for any angle and cooperates with the telescopic rod for use, and data acquired by the detecting head is transmitted to the detecting instrument in real time. By means of the auxiliary tool for ultrasonic testing of the high-voltage electrical appliances, detection without a dead angle for high-voltage live equipment at any height is realized, and the technical problem that detection for the high-voltage live equipment is high in labor intensity and has potential safety hazards is solved.

The invention discloses a Beidou GNSS monitoring system layout method based on slope stable state analysis, and the method comprises the steps: building a slope three-dimensional model through oblique photography, dividing a typical two-dimensional profile, and building a two-dimensional analysis model; obtaining physical and mechanical parameters of the slope rock-soil body; calculating the slope stability of the two-dimensional analysis model under an extreme working condition by adopting a numerical analysis method, and obtaining a dangerous sliding surface; by taking the obtained sliding surface as a reference basis, projecting a front edge shear opening and a rear edge pull fracture zone of the landslide to corresponding positions of the three-dimensional geologic model to form a dangerous sliding surface projection line from the rear edge to the front edge of the landslide, and arranging a Beidou GNSS monitoring instrument to form a monitoring area; selecting different section lines, repeating the steps, arranging Beidou GNSS monitoring instruments at different positions, and forming a plurality of monitoring areas. According to the invention, monitoring network arrangement is achieved, 360-degree dead-angle-free detection in a field is realized, and the applicability is relatively high; and numerical simulation and engineering practice are combined, so that the monitoring work efficiency is improved.

The invention discloses an agricultural machinery automation safety control system. The system comprises a controller, an alarm, a signal receiver, an electronic control valve which makes a machinery move or stop and a plurality of infrared inductors which detect organisms possessing life characteristics surrounding the machinery. A signal output terminal of the signal receiver is connected to a first signal input terminal of the controller. A first signal output terminal of the controller is connected to a first signal input terminal of the electronic control valve. Signal output terminals of the infrared inductors are connected to a second signal input terminal of the controller. A second signal output terminal of the controller is connected to a signal input terminal of the alarm. By using the agricultural machinery automation safety control system, automation control of the agricultural machinery is realized; a lot of manual operations are not needed and a workload is reduced; operating efficiency and accuracy are increased; cost is saved; and the organisms possessing the life characteristics surrounding the machinery can be detected so that safety is greatly increased.

The invention relates to a weld defect detection method and device, electronic equipment and a storage medium. The method comprises the steps of determining a first vibration signal corresponding to a target sensor based on a detection signal of the target sensor; determining a first vibration signal corresponding to each non-target sensor based on the detection signal of each non-target sensor; based on the first vibration signals corresponding to the non-target sensors, determining second vibration signals of reference waves corresponding to the non-target sensors at target sensor setting positions; superposing the first vibration signal corresponding to the target sensor and the second vibration signal of each reference wave at the setting position of the target sensor to obtain a superposed third vibration signal; and determining weld defect data in the to-be-detected component based on the superposed third vibration signal. The device can be used for detecting local defects in a long welding seam structure with high transverse resolution capability and high axial positioning precision, and can realize remote in-service quality monitoring.

The invention discloses a full-automatic medical piston detector. The detector is composed of a feeding system and a detection system, and the feeding system is mainly composed of a circular material bin device, a linear vibrator device and a circular vibrator device. The detection system is composed of a connecting device, a transmission conveying device, a first detection station device, a first waste kicking channel, an air suction rotating disc conveying device, a rotating detection station device, a second waste kicking channel, a finished product channel and the like. The full-automatic medical piston detection machine is easy to wash and clean, stable discharging can be achieved, the machine vision detection principle and the high-speed image processing technology are adopted, full-automatic non-blind-area detection is conducted on medical pistons, waste products are automatically removed, and the accuracy and the detection efficiency of medical piston detection results can be improved.

The invention discloses an auxiliary device for radiographic inspection of substation equipment. The auxiliary device comprises a hoop used for hooping detected equipment, and further comprises a raymachine support and an imaging plate support. A first sliding groove and a second sliding groove are formed in the two sides of the hoop respectively, the ray machine support is arranged along the first sliding groove in a sliding mode, and the imaging plate support is arranged along the second sliding groove in a sliding mode. By means of the auxiliary device, a ray machine can be fixed to a position, needing to be detected, of the detected equipment in advance, an imaging plate is fixed to the corresponding position in advance, people do not need to conduct climbing operation in the detection process, and the risks of accidents such as electric shock and high falling of people in the operation process are reduced.

The invention discloses a surface quality detecting assembly line for an electric automobile covering part and relates to the field of new energy automobiles. The surface quality detecting assembly line comprises a conveying device, a detecting assembly and a positioning assembly. According to the surface quality detecting assembly line disclosed by the invention, to-be-detected covering parts arearranged on the detecting assembly and are conveyed to a detection station by the conveying device; surface quality detection is manually finished; detection work of multiple workpieces can be simultaneously realized, and further the process of frequently and manually taking and putting materials is omitted; meanwhile, by means of a slewing bearing, 360-degree no-dead-corner detection of the to-be-detected covering parts can be realized.

The invention discloses a detection and analysis device for realizing leakage of an urban water pipe network. The detection and analysis device comprises positioning mechanisms, two connecting structures arranged on the two sides of the positioning mechanisms, a sweeping structure and a humidity detector which are arranged on the connecting structures, and a driving structure which is connected to the two positioning mechanisms and is used for driving the positioning mechanisms to move; the positioning mechanisms can be arranged on a water pipe, and better positioning can be carried out on the water pipe, so that the distance between the positioning mechanisms and the water pipe is not changed; the sweeping structure is arranged to clean the outer surface of the water pipe, so that the detection of the leakage of the water pipe is more accurate; and the driving structure is arranged, so that a notch circular ring can move forwards for a certain distance every time the detection of a section of water pipe is completed, and dead-angle-free detection is realized.