65 results about "Driving test" patented technology

The invention provides an SCANeR-based automatic driving simulation test model construction method, which comprises the following steps of S1, deconstructing and reconstructing scene data, and extracting scene feature elements; S2, carrying out static scene editing according to the scene feature elements; S3, performing dynamic scene editing according to the scene feature elements; S4, interactingthe content in the step S2 and the content in the step S3 in SCANeR, and constructing a virtual driving test scene; and S5, determining whether a test condition is met or not, and if not, returning to the step S2; if so, starting testing. According to the SCANeR-based automatic driving simulation test model construction method of the invention, in combination with cloud computing, high-precisionmaps, virtual reality and other technologies, driving scene virtual simulation can extend tests to more application scenes, and therefore, the SCANeR-based automatic driving simulation test model construction method has a great acceleration propulsion effect on the research and development of automatic driving functions of L2 and above.

The invention discloses a port-environment-oriented man-machine hybrid automatic driving test method and a test platform thereof. On the basis of SCANeR, a vehicle driving environment required by a test is created; a vehicle model is established according to vehicle parameters, the detection of a simulation sensor is far away from a virtual vehicle-mounted sensor system, and whether the vehicle model can sense the road environment, plan a driving route automatically, and control the vehicle to reach a predetermined target through the vehicle-mounted sensor system of the vehicle model is detected in a virtual vehicle driving environment, and the boundary of the automatic driving function is verified. The vehicle model and the vehicle-mounted sensing system are virtualized, and virtual testing is firstly carried out; in a virtual test, real-time man-machine switching driving modes can be realized through a driving simulator, so that the vehicle driving safety is improved. Moreover, automatic driving trajectory planning, trajectory tracking and execution controller performance of the vehicle model under different traffic scenes can be virtualized according to test requirements in thevirtual test, so that the test cost is effectively reduced, and test efficiency is improved.

The present invention discloses a method for minimization of drive tests, a method for collecting terminal information, a terminal, and a network element, which belongs to the field of communication technologies. The method includes: in a process of activating a minimization of drive tests MDT task, checking, by a network element, a consent type of a user corresponding to a selected terminal; sending a MDT task activation command to the selected terminal according to a check result of the consent type; after receiving measured data reported by the selected terminal, performing an operation according to a check result of the consent type. In embodiments of the present invention, check on user consent is implemented in a network detection process, thereby avoiding a case that a user equipment is forced to report personal information without permission of the user and improving the user experience.

A method of providing location option control for Minimization of Drive Test (MDT) in LTE systems is provided. In one embodiment, a UE or an eNB receives an MDT location request that comprises an MDT location option configuration having one or more location options. The UE or eNB determines a first location option based on the MDT location option configuration and initiates positioning for MDT measurements, reporting, and logging according to the first location option. In one novel aspect, each location option is associated with a priority. In addition to MDT measurements, reporting, and logging, a UE determines the best positioning procedure from a list of available location options. In one novel aspect, under a specific positioning objective, the UE prioritizes the list of available location options based on the signal strength and/or quality of cellular and WLAN signals.

The invention discloses a detection method for the driving state of a vehicle. The detection method comprises the following steps: determining whether the moving speed of the vehicle is lower than a threshold of a parking speed; determining whether the moving speed of the vehicle is lower than a threshold for driving monitoring, and if so, executing a mileage acquisition step, or if not, executinga trajectory acquisition step; determining whether the vehicle is in a moving speed according to the data of a mileometer, and if so, executing the trajectory acquisition step; acquiring a GPS movingtrajectory within preset time, determining whether the GPS moving trajectory is continuously forwarding, and if so, executing a second determination step; and determining whether the direction of theGPS moving trajectory is consistent with the orientation of the head of the vehicle. The invention also provides an electronic instrument and a computer-readable storage medium. The detection methodfor the driving state of the vehicle in the invention determines the current driving state of the vehicle by combining GPS data and the data of the mileometer, so the accuracy of the driving state ofthe vehicle is improved, and the misjudgement rate of a driving test evaluation system is reduced.

The invention discloses a mechanical power flow closed type intersecting shaft bevel gear transmission test bench. The mechanical power flow closed type intersecting shaft bevel gear transmission test bench includes an electromagnetic speed regulating motor, a reducer I, a reducer II, a shaft system, and a loading device , coupling group, experimental bevel gear module, base; the reducer I, reducer II, the loading device and the experimental bevel gear module are connected through the shafting and the coupling group, the The reducer I and reducer II are fixed on the base; the reducer I, the coupling IV, the experimental bevel gear module, the coupling V, the reducer II, the coupling The shaft device II, the loading device, and the coupling I constitute a mechanical closed system; the output power of the electromagnetic speed regulating motor is only used to overcome the frictional resistance in the system and supplement various losses; the rotation angle adjustment device can The performance experiments of different bevel gears are carried out, and one machine with multiple functions improves the utilization rate of the test bench.

The invention discloses a method for testing data return, wherein the method is used for improving stability of data return. The method comprises: automatic drive test terminal equipment carries out testing on a wireless mobile network so as to obtain testing data; the automatic drive test terminal equipment detects whether a local area network is connected or not; and when the local area network is connected, the automatic drive test terminal equipment returns the obtained testing data to a background server by the local area network. In addition, the invention also discloses an apparatus for realizing the above-mentioned method.

The invention discloses a vehicle control device and a system for driving test and driving training, which belong to the technical field of vehicle control. The system includes a power supply module, a front-end machine, a back-end machine, and an audio/video collector, a vehicle state collector, an ultrasonic detector, a driving information collector and a vehicle positioning component which are connected with the back-end machine. The front-end machine is in data connection with the back-end machine. The power supply module is connected with the internal power supply of a vehicle, is arranged in the trunk of the vehicle, and supplies power to all devices. The problem that the vehicle computer and the function equipment of the driving test and driving training vehicle in the prior art are scattered and large and have a single function, low operation efficiency and high failure rate is solved.

The invention discloses a tester capable of simulating a track in a braking state. The tester comprises a length-adjustable horizontal test bed, a test wheel provided with a braking system, a drivingmotor system, a guide driven wheel system, a guide cross beam capable of guiding the driving direction and adjusting the height through auxiliary motors, a precipitation cycle simulating system and atemperature control system. The tester is reasonable in structure design, compact in mounting, simple and easy to operate and good in use effect, can simulate the stress condition in the braking stateduring vehicle driving and can simulate the stress condition of a track plate under the variable load action, the actual problem that existing track instruments can only simulate stress of the trackplate in the vertical force state when crank connecting rods are used for driving test wheels to run can be effectively solved, a reliable tool is provided for detection of high-temperature performance of bituminous mixture test pieces and can be used as a tool for indoor scientific research.

The embodiment of the invention discloses an automobile maintenance period operation method and a vehicle-mounted intelligent operation system. The method comprises the steps that the engine type andthe lubricating oil type selected by an automobile manufacturer and/or a terminal user are/is obtained; according to four key oil change index limit values of a lubricating oil technology, a driving test of urban road conditions and/or a global light vehicle unified test driving cycle WLTC simulation bench method are/is used for measuring and calculating the service life of lubricating oil when the lubricating oil works, and the service life is input into vehicle-mounted hardware; and thus, the vehicle-mounted intelligent operation system calculates the remaining service life of the lubricating oil according to the engine type, the driving working condition and the lubricating oil running time and evaluates the automobile maintenance period. Therefore, the remaining service life of the lubricating oil and the automobile maintenance period are evaluated accurately and conveniently according to the automobile engine type, the automobile running working condition and the lubricating oil running time.

The invention discloses an intelligent driving test system for road testing of a driver and a working method. The intelligent driving test system comprises a sensing module, a decision making module and an execution module. The sensing module comprises an information fusion processor, a laser radar, a millimeter-wave radar, an ultrasonic radar, a camera and a high-precision GPS, wherein the laserradar, the millimeter-wave radar, the ultrasonic radar, the camera and the high-precision GPS are connected with the information fusion processor. The decision making module comprises a vehicle-mounted computer, a vehicle-mounted communication module, a voice module and a data recording unit; the vehicle-mounted computer is connected with the information fusion processor, the vehicle-mounted communication module, the voice module and the data recording unit; the execution module comprises a steering control module, a braking control module and a driving control module; and the steering controlmodule, the brake control module and the drive control module are respectively connected with the vehicle-mounted computer and the data recording unit. Collection of surrounding environment information of the intelligent examination vehicle in the road test state is achieved, operation prompting is conducted, emergency treatment is conducted when dangers are judged in advance, and driving safetyis guaranteed.

The invention discloses an automatic driving test system based on controllable traffic flow. The system comprises an automatic driving test vehicle; a simulated traffic flow bottom plate; and a control platform which comprises a server side unit and a client side unit, the server side unit comprises a scene design module, and the client side unit comprises a scene plan module, a serial port communication module, a data analysis module, a real-time calculation module and an instruction processing module; during testing, the scene plan module sends parameters of a certain testing scene, the data analysis module analyzes and sends data, the real-time calculation module calculates result data and sends the result data to the instruction processing module, and the simulated traffic flow bottom plate is controlled to execute an instruction. The invention further discloses an automatic driving test method based on the controllable traffic flow, electronic equipment and a storage medium. According to the invention, a standardized test scene can be established by simulating different traffic flows, the quantitative test requirements of the automatic driving vehicle are met, and the comprehensiveness and reliability of the automatic driving vehicle test are improved.

The invention discloses a roadside information fusion method and system. The method comprises the steps that a machine vision sensor obtains a drive test image in a preset range; The ultrasonic sensorcontinuously sends and receives ultrasonic signals and converts the ultrasonic signals into ultrasonic sensor data; Sending the drive test image and the ultrasonic sensor data to a server through a wireless communication module; Pre-processing the drive test image and de-noising the data of the ultrasonic sensor; Obtaining a projection point of an effective target on the pixel plane of the drivetest image according to the de-noised ultrasonic sensor data; And establishing a region of interest around the projection point, and completing the spatial fusion of ultrasonic sensor data and machinevision information. According to the method, data of the ultrasonic sensor can be projected to a plane of an image pixel, a region of interest is established around a projection point, spatial fusionof the data of the ultrasonic sensor and machine vision information is completed, and accurate identification and detection of drive test information are achieved.

Provided is a driving test information collecting and storing system which comprises a data collection unit, a data storage unit and a system hardware platform composed of a core module and an interface base plate. The data collection unit comprises devices to collect video information and audio information in real time. The data storage unit compresses different video and audio information collected by the collection unit in the driving test process and all related testee information, test score, tester information, test vehicle information and national standards or necessary real-time non-audio non-video test information and non-real-time test information prescribed in other requirements into a driver test process multi-information audio-video DEMSAV file. According to the system, storage archives of a testee are reduced to one file, convenience is provided for management and checking, it is ensured that consulting results of different information which needs to be recorded in the test process are kept synchronized in time and position after test, the confidential level of the test information is higher, the system is safe and reliable, and the public trust degree of monitoring is high.

An automated laser diode testing and burn-in system is disclosed. Initial device data is obtained by applying current to the device at room temperature and measuring the device parameters. The device is then subjected to a burn-in process at higher temperatures. Device performance is monitored throughout the burn-in process. Upon termination of the burn-in process the devices are cooled to room temperature and the post burn-in device power is measured again under the same test conditions. If the device parameters have changed by more than a particular amount the device is rejected. Otherwise, the device is accepted and installed in the next level assembly. The test system disclosed herein achieves significant advantages over prior art in cost and throughput by combining an easy to load laser test fixture with automatic device hold down feature, heating capability, computer program driven test protocol capable of performing initial laser measurements, calibrating each laser and photodetector pair, burn-in test, post burn-in measurements, failed device detection, storage of laser test history records and enabling remote access to such records. The invention eliminates the need for numerous labor intensive ergonomically difficult steps and costly test fixtures.

The invention provides an image shunt display device and method applied to drive test of an auxiliary driving controller. The image shunt display device comprises a signal acquisition module which is used for acquiring a single-path coaxial video signal output by an auxiliary driving controller or an auxiliary driving camera; the signal conversion module is connected with the signal acquisition module and is used for dividing the single-path coaxial video signal into at least two paths of same coaxial video signals; and the signal output module is connected with the signal conversion module and is used for correspondingly outputting the at least two paths of same coaxial video signals to at least two electronic devices, so that the electronic devices can display or record the signals. According to the invention, the road test efficiency of the auxiliary driving controller can be improved, and the test burden of workers can be reduced.

The invention discloses a test bench and a test method of a chassis driving test of a robot. The test bench comprises a motor performance test unit, a landform test unit and a processing unit. The motor performance test unit comprises a first power test machine and a first transmission device. The first power test machine is connected to one end of the first transmission device. In use, the output shaft of a to-be-tested motor is connected to the other end of the transmission device. The landform test unit comprises a second power test machine and a second transmission device. The second transmission device comprises a landform transmission shaft and a landform sleeve. One end of the landform transmission shaft is connected to the second power test machine. The landform sleeve sleeves the landform transmission shaft. In use, the to-be-tested motor contacts the landform sleeve and is capable of driving the landform sleeve to rotate. The motor performance test unit and the landform test unit are in communication connection with the processing unit. According to the invention, a test and experiment bench is provided for testing, evaluation, optimization and reliability testing of the chassis driving system and a chassis comprehensive test system is established.

The present invention provides a method for a user equipment, UE, device to perform measurements in order to assess network performance, preferably minimization of drive test, MDT, measurements, the method comprising receiving configuration information at the UE, the configuration information providing information for controlling service specific measurements and for controlling tagging of measurement reports by the UE with at least one of a service flow identifier and an indication that the measurement relates to one of a single service data flow and a multiplicity of service data flows.

The invention discloses a vehicle lane change early warning method in different traffic environments, which comprises the following steps of firstly, respectively carrying out natural driving test andlimit test on a vehicle in different traffic environments, and obtaining natural driving test lane change data and limit test lane change data of the vehicle in different traffic environments, according to the limit test lane change data, when the relative speed of the two vehicles is greater than 0, taking the brake deceleration of the rear vehicle in the target lane as an early warning index, determining early warning thresholds under different traffic environments, according to the natural driving test lane change data, when the relative speed is smaller than 0, using the relative distanceas an early warning index, determining early warning thresholds under different traffic environments, and finally, for vehicles running in different traffic environments, selecting corresponding early warning thresholds according to the positive and negative relative speeds, and conducting lane change early warning on drivers of the vehicles. The false alarm rate of the early warning system is effectively reduced, the acceptance degree of a driver to the lane change early warning system is improved, and the early warning effect of the early warning system is improved.

The invention relates to an electric vehicle simulation driving test platform and system and belongs to the electric control test technical field. The test platform includes a bench and a testing device arranged on the bench; the testing device comprises a dashboard system, a combined meter, a steering wheel, a steering column, a gear shifting knob, an acceleration pedal, a brake pedal and a driver seat; the dashboard system is arranged on the bench through a dashboard fixing frame; the driver seat faces the dashboard system and is arranged on the bench through a seat fixing bracket; the steering column is connected onto the dashboard system through the steering column and is disposed beside the driver seat; the gear shifting knob is connected onto the dashboard system; the acceleration pedal is mounted on the bench through an acceleration pedal bracket; the brake pedal is arranged on the bench through a brake pedal bracket; and the combined meter is arranged on the dashboard system. The electric vehicle simulation driving test platform of the present invention is simple and can effectively detect the performance of a vehicle electronic control system.

The invention discloses a remote control robot for an automatic driving test and a control method therefor. The robot comprises a robot model and a remote controller; the robot model is composed of a trolley and a humanoid mold fixed on the trolley; the trolley comprises a control module, a detection module, a first sending module and a first receiving module; the first sending module is connected with the detection module; the first receiving module is connected with the control module; all parts of the humanoid mold are covered with copper foils with certain thickness and density; the remote controller comprises a control signal input module, a display module, a second sending module and a second receiving module; the second sending module is connected with the control signal input module; and the second receiving module is connected with the display module. The reflectivity of a simulated real person to a millimeter wave radar is obtained by covering the humanoid mold with the copper foils, the test requirements of the recognition capability and the intelligent decision-making level of the self-driving automobile are met, the test safety and accuracy are high, and the test precision and the test efficiency are improved.

The invention relates to a digital driving auxiliary learning method, which comprises the following steps of: S11) carrying out right-angle bending and curve road test; S12) carrying out ramp fixed-point parking and starting test; S13) carrying out lateral parking test; S14) performing reverse parking test; S21) carrying out safety inspection and test; S22) carrying out light learning test; and S23) carrying out driving test. According to the digital driving auxiliary learning method provided by the embodiment of the invention, students can systematically learn driving courses, and systematicteaching does not need to be carried out by coaches with relatively high professionality; meanwhile, the students can know specific reasons of problems in time, and can adjust own operation modes according to the recorded data.