636results about How to "Avoid dangerous situations" patented technology

The invention discloses an intelligent scenic spot tourist safety service system based on GIS interoperation and LBS. The system comprises a client, a server and a service monitoring center. Based on an automatic and intelligent interoperation protocol and a standard between a GIS server and a LBS mobile terminal, aiming at tourists, the system realizes position association, automatic position state perception, active early warning and concurrent linkage of multiple monitoring means. A safe think tank makes a decision so as to realize bidirectional high-efficiency position safety information interaction of the tourists and a scenic spot and a timely and rapid rescue service. The system is combined with A-GPS or Big Dipper, a base station and a WiFi positioning mode to acquire accurate position information of the tourists and working personnel in the scenic spot. On an aspect of a GIS interoperation server, an intelligent and automatic GIS space analysis algorithm is designed. A mobile terminal uses an APP to acquire a function support of the server. Precision and efficiency of safe monitoring and early warning of the scenic spot are increased; forecasting and early warning are performed; accident rescue work of the personnel in each scenic spot is scientifically guided and tourist safety is guaranteed.

The embodiment of the invention provides a map processing method and a cleaning robot. The method is applied to the cleaning robot. The method comprises the following steps: establishing a self-localization and navigation border map of the cleaning robot, wherein the border map comprises the attributes of the area based on a measured object and the position of the area, and the attributes of the area comprise the type of the area; and controlling the cleaning robot according to the border map. Due to the implementation of the technical scheme, the cleaning robot can distinguish the attributesof the obstacles in the map, and thus while the sweeping coverage rate is improved aiming at the different obstacles, the cleaning risk is reduced.

The invention discloses a UWB-based (Ultra Wideband) precise calibration method for a coal-cutter absolute position and an apparatus. The apparatus comprises a coal cutter body, a coal-cutter positioner, a positioner explosion-proof housing, a host computer, four ultra-wideband (UWB) wireless communication sensors and a POE (Power Over Ethernet) switch; the coal cutter body is fixedly provided with the positioner explosion-proof housing; the positioner explosion-proof housing is inside provided with the coal-cutter positioner; the coal-cutter positioner is inside provided with a UWB positioning label; the ultra-wideband (UWB) wireless communication sensors are fixedly disposed on a hydraulic support at a coal-cutter running end at intervals; and the ultra-wideband (UWB) wireless communication sensors are connected with the host computer via the POE switch. ultra-wideband (UWB) wireless communication is utilized for precise calibration, the anti-interference capability is strong, the transmission speed is high, relatively high bandwidth and relatively low power consumption are provided, and also precise positioning for a downhole coal cutter is provided, and the apparatus is safe, reliable, easy to install and convenient to operate.

The invention provides a cleaning robot and a control method of the cleaning robot. The method comprises the steps of collecting images of multiple view angles of an obstacle; identifying the type ofthe obstacle according to the images of the plurality of view angles; respectively determining a first obstacle boundary of the obstacle corresponding to the image of each visual angle in the plurality of visual angles; obtaining a second obstacle boundary of the obstacle according to the type of the obstacle and each first obstacle boundary; and controlling the cleaning robot according to the mapmarked with the boundary of the second obstacle. By means of the method, the credibility of obstacle boundaries in a map established by the cleaning robot can be improved, the cleaning coverage rateis improved for different obstacles, and meanwhile, the cleaning risk is reduced.

The invention discloses an intersection pass early warning method based on computer vision. The method comprises the following steps: S1) collecting video images of an intersection in real time and capturing close-up images of vehicles; S2) extracting moving objects according to the video images, generating moving object driving information and extracting complete vehicle license plate information according to the close-up images; S3) carrying out classification on the moving objects to obtain a classification result; S4) calculating driving speed of each vehicle according to the classification result and the driving information; S5) storing information of the vehicles passing through the intersection, and predicating the center-of-mass coordinate of each moving object at the next-moment position according to the driving speed and driving information of the vehicle; and S6) according to the driving information, the driving speed and the center-of-mass coordinate of the moving object at the next-moment position, generating an early warning signal and displaying the early warning information for the situations meeting abnormal conditions. The method can carry out analysis on construction intersection pass abnormity conditions through the video image analysis technology and output the early warning signal, and is high in stability and accuracy.

A driver assistance device for a motor vehicle is provided. The driver assistance device includes an environmental sensor configured for monitoring a monitoring space located laterally to the motor vehicle for the presence of an object. An analysis unit is configured to receive a detection signal from the environmental sensor for estimating a possible endangerment of the motor vehicle by the object present in the monitoring space and to deliver a result signal representative of the endangerment. The analysis unit is configured to judge on the basis of the detection signal whether the object present in the monitoring space is approaching a lane adjacent to a lane traveled by the motor vehicle and to signal a result of a judgment in the result signal.

The invention provides an experimental equipment state monitoring system in order to solve the problems that in the prior art, the utilization state of instruments and equipment in scientific research institutions is hard to monitor, and open management of laboratories is difficult. The experimental equipment state monitoring system comprises at least one experimental device, at least one monitoring terminal and a gateway middle piece and has the advantages of effectively monitoring the real-time state of all laboratory electronic instruments or large equipment, acquiring real and reliable equipment operation time, improving the utilization efficiency of instruments and equipment, saving manpower and materials, reducing managing cost, and effectively preventing dangerous conditions from occurring. Administration staff can check the real-time state of all the laboratory electronic instruments or large equipment through networks or servers so as to timely and comprehensively understand the utilization arrangement of all the electronic instruments or large equipment in experiment teaching or open experiments, and effectively manage utilization people, equipment using time, and the like.

The invention discloses a watch tracer. An intelligent lock is arranged on a watch chain or a watch belt of the watch tracer. When the watcher tracer is removed under the unauthorized condition, the intelligent lock can trigger and generate a human-machine separating alarming signal and sends the human-machine separating alarming signal to a processor to enable the processor to automatically report alarm information to an authorization terminal, so that a user of the authorization terminal can know whether the watch tracer is worn on the user in time when the watcher tracer is removed under the unauthorized condition. Therefore, dangerous situations are avoided to some extent.

A high-efficiency intelligent high-side electronic load switch with wide voltage adaptability comprises a power supply module, a core control module, a self-boosting module, a voltage detection module, a current detection module and a switching module. The core control module is used for signal acquisition, information processing and storage and logic control; firstly, the core control module receives an external switch control input signal and detection signals output by the current detection module and the voltage detection module and processes and analyzes monitoring data according to an internally stored program to control the switching module to complete corresponding actions; secondly, the core control module provides a PWM control signal for the self-boosting module. The voltage detection module and the current detection module are used for detecting the real-time operating voltage and current of the switching module and transmitting data to the core control module for processing and analysis. The self-boosting module is used for providing a driving voltage for a switching tube in the switching module. The switching module is used for executing the on-off actions of a load. The high-efficiency intelligent high-side electronic load switch is wide in operating voltage range, high in operating frequency, high in efficiency, low in loss, safe, reliable and programmable.

The present invention relates to an agricultural working machine (2), in particular a forage harvester (1) with a device for adjusting the ground speed v, with which the maximum ground speed v of the agricultural working machine (2) is determined as a function of the tire pressure of at least one tire (14).

A cart for an escalator, wherein a cart body (5) comprises caster wheels (7) rotatable in all directions about vertical rotating axes. A copying mechanism (6) is engaged with an escort rail (3) to maintain the cart body (5) in a specified attitude. Contact parts (8) fitted to the cart body (5) are brought into contact with the rise face (2c) of a step (2) to separate the caster wheels (7) from the rise face (2c).

The invention provides a detecting circuit and method for a short circuit of an elevator door lock loop. A plurality of floor door lock safety contacts are connected in series, and the first ends of the floor door lock safety contacts are connected with a voltage and form a first node; the second ends of the floor door lock safety contacts are connected with car door lock safety contacts and form a second node; and the other ends of the car door lock safety contacts forms a third node. The detecting method comprises the steps: when an elevator reaches a flat bed position of a target floor and a door is opened in place, detecting whether the third node is provided with a voltage signal or not, if yes, outputting a short circuit signal and carrying out fault treatment, if not, detecting whether the second node is provided with a voltage signal or not, if yes, outputting a short circuit signal and carrying out fault treatment, if not, judging whether the elevator is located on a door region position or not, if yes, communicating the first node and the third node and detecting whether the second node is provided with a voltage signal, if yes, outputting a short circuit signal and carrying out fault treatment. By using the detecting circuit and method, the condition that a main door lock loop, a floor door lock and a car door lock are short-circuited can be detected, and fault treatment can be carried out during short circuit to control the elevator to stop operating, so that hazardous conditions are avoided.

The invention discloses a management method and device for an electric automobile low-tension battery. The management method comprises steps that a power supply management system is regularly wakenedup; voltage detection is conducted to the low-tension battery by the wakened-up power supply management system and whether electricity supply is required is detected; if required, a mode of the electric automobile is detected; if the mode is a trickle-charge mode, a vehicle-mounted battery charger is started, so electricity can be supplied to the low-tension battery by the external power supply; if the mode is a driving mode, a DCDC controller is started and electricity is supplied to the low-tension battery by a power battery; through regular detection to the voltage of the low-tension battery, whether electricity supply is required can be determined according to a detection result; the low-tension battery of the electric automobile can be automatically powered and problems of low-tensionbattery damage and short service life due to long-time electricity shortage when electricity cannot be automatically supplied to the low-tension battery; different electricity supply modes are employed upon different modes; low-tension battery can be effectively protected; and service life of the low-tension battery can be prolonged.

The invention relates to a method for generating light distribution to send a driving instruction to a first vehicle, and the first vehicle is on a first lane of a running lane. At least one second vehicle is detected around the first vehicle on the second lane, wherein the second vehicle moves in the same driving direction of the first vehicle. In addition, the value of at least one parameter can change with the second vehicle and can be detected, and a driving instruction signal for changing the first vehicle to the second lane is generated. The light distribution can be genrated by the first vehicle on the lane according to the driving instruction signal, the light distribution is adopted to notify a driver of the first vehicle if the first vehicle can safely change from the first lane to the second lane. The invention also relates to a driver assistance system for the above vehicle.

According to the embodiments of the invention, a display data processing method and apparatus are disclosed. The invention relates to the technical field of image processing. The method and the apparatus here can match features of an actual environment in the virtual space which is acquired by a device and further improve user experience. The method herein includes the following steps: acquiring a virtual environment type displayed by a VR device; acquiring data of an environment of a user who wears the VR device, and generating an actual environment model; matching the actual environment model and the virtual environment model, if the result of the matching is that a designated object of the actual environment model fails to match a virtual object in the actual environment, adding a virtual object corresponding to the designated object in the virtual environment model. According to the embodiments of the application, the method herein is applied to processing display data.

The invention relates to a lug structure, comprising a plug body which is connected with an electric-conducting terminal and an insulating end; wherein, a sheathing end is arranged at one end that the electric-conducting terminal is connected with an electrical socket outlet; an insulating end is arranged again at the outer edge of the sheathing end; after the insulating end is arranged on the sheathing end, the electric-conducting terminal size with standard specification is formed with the electric-conducting terminal for connecting the power supply; by utilizing the design of the insulating end, the disadvantages that point discharge and high heat are produced when the plug is inserted in the electrical socket outlet are solved, and the efficiency on increasing the service life of the appliance is correspondingly improved; in addition, by utilizing the soft material characteristics of the insulating end, the damage produced by friction with the contact surface of an electric conducting groove in the electrical socket outlet can be greatly reduced when the electric-conducting terminal in inserted in the electrical socket outlet, and the disadvantages that oxidization is caused and resistance is increased are reduced, thus achieving the efficiency on saving electricity and energy.

The invention discloses a cruising function control method, system and device and a readable storage medium. The method comprises the steps of obtaining the actual automobile speed, the cruising target automobile speed and the steering angle of a steering wheel; according to the actual automobile speed and the cruising target automobile speed, calculating the corresponding initial cruising torque;judging whether or not the initial cruising torque exceeds the torque limiting section corresponding to the steering angle of the steering wheel; if yes, determining the boundary point closest to thecruising torque on the initial cruising torque limiting section as the final cruising torque; outputting the final cruising torque. The output cruising torque is regulated in the cruising period, andtherefore the automobile speed is kept within the safety traffic range all the time. If the turning speed is excessively high, the corresponding initial cruising torque exceeds the torque limiting section, the initial cruising torque is limited within the torque limiting section and then output, in other words, during turning, a driver rapidly brakes the automobile before braking measures are made, the phenomenon that risks are generated when the driver does not adopt braking measures in time is avoided, and the driving safety is improved.

The invention discloses an undercarriage faulty airplane safe landing gear. The undercarriage faulty airplane safe landing gear comprises a landing plate provided with a traction mechanism and a sliding mechanism arranged below the landing plate. An elastic steel sheet with the M-shaped cross section is arranged on the upper portion of the landing plate. A flexible energy relief layer is arranged on the elastic steel sheet. A compensation air bag is arranged in a cavity between the landing plate and the elastic steel sheet. An airplane position automatic correction device is arranged in a concave position in the middle of the elastic steel sheet. The undercarriage faulty airplane safe landing gear has the advantages of being high in anti-seismic buffering capacity, capable of accurately and conveniently conducting positioning, flexible and adjustable in airplane landing position, low in cost, and capable of being popularized and applied conveniently.

The invention discloses a detection-identification and falling-prevention electronic control device for a running apparatus and a method. The detection-identification and falling-prevention electronic control device comprises a controller, a motor control unit and a detection unit, wherein the controller receives a detection signal of the detection unit by an input end and controls the motor control unit by an output end. The detection unit comprises a distance detection system consisting of at least two distance sensors. The distance sensor is an ultrasonic sensor. The detection unit also comprises a pedal-signal detection system which comprises a vibration sensor; the vibration sensor comprises a plurality of vibration detection probes. The detection unit also comprises a sound detection system. The detection-identification and falling-prevention electronic control device for the running apparatus and the method, disclosed by the invention, have the advantages that the structure is simple, the motion state of a user when the user uses the running apparatus can be accurately judged, the motion speed of the motor can be adjusted in real time, and the intelligent control for the running apparatus can be achieved.

The invention provides a silicon liquid leakage protection device used for a polysilicon purification or ingot furnace, comprising a crucible and a platform; the crucible is arranged on the upper surface of the platform; the silicon liquid leakage protection device is characterized in that the device also comprises a chamfer and a coagulating basin; the upper surface of the platform is provided with a plurality of radial diversion troughs and a plurality of axial diversion troughs; the chamfer is arranged at the periphery of the bottom of the platform; the coagulating basin is arranged on the lower surface of the platform and surrounds the platform by one cycle; the internal circumference of the coagulating basin is arranged inside the chamfer and the external circumference thereof extends to the external surface of the platform; when the silicon liquid leakage protection device used for the polysilicon purification or ingot furnace is adopted, the leaked silicon liquid can completely flow into the coagulating basin by the diversion trough on the platform no matter where the leakage occurs on the crucible, thus preventing the occurrence of equipment damage and explosion and protecting the safety of operators in front of the furnace.