CN117672049A - Intelligent networking automobile integrated sensor teaching experiment device - Google Patents
Intelligent networking automobile integrated sensor teaching experiment device Download PDFInfo
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Abstract
The invention discloses an intelligent network-connected automobile integrated sensor teaching experiment device, which comprises a test bed and a practical training device, wherein the test bed is used for being installed in an experiment area of practical training teaching management equipment and is provided with an installation bracket for positioning and installing a target test object; the training device is connected with the target test object and is used for receiving detection signals transmitted by the target test object and calibrating actual target parameters of the target test object, and the training device is also used for simulating and calculating the detection parameters of the target test object in a preset vehicle working condition teaching scene according to the actual target parameters. The teaching aid is used for solving the problem that omnibearing teaching cannot be achieved and the teaching effect is not ideal.
Description
Technical Field
The invention relates to the technical field of computers, in particular to an intelligent networking automobile integrated sensor teaching experiment device.
Background
At present, most of the teaching experiment devices on the market aiming at detection devices such as vehicle sensors can only carry a single sensor, and cannot help to calibrate and detect target test objects such as radar sensors, so that omnibearing teaching cannot be realized, and in addition, application pictures of different target test objects in different vehicle working condition scenes cannot be provided in the teaching process, so that the teaching effect is not ideal.
Disclosure of Invention
The invention mainly aims to provide an intelligent networking automobile integrated sensor teaching experiment device which is used for solving the problems that omnibearing teaching cannot be achieved and the teaching effect is not ideal.
In order to achieve the above purpose, the present invention provides an intelligent network-connected automobile integrated sensor teaching experiment device, comprising:
the test bed is used for being arranged in an experimental area of the teaching experiment device and is provided with an installation bracket for positioning and installing a target test object;
the training device is connected with the target test object and is used for receiving detection signals transmitted by the target test object and calibrating actual target parameters of the target test object, and the training device is also used for simulating and calculating the detection parameters of the target test object in a preset vehicle working condition teaching scene according to the actual target parameters.
In an embodiment, the target test object comprises at least one of a laser radar, an ultrasonic radar, a millimeter wave radar, a camera device, a navigation device.
In an embodiment, when the target test object includes the image capturing device, the training device is further configured to obtain a detection picture of the target test object in a preset vehicle working condition teaching scene, and generate and output a detection map according to the detection picture and the detection parameter.
In one embodiment, the mounting bracket is detachably mounted on the test stand, and a positioning groove matched with the target test object is formed in the mounting bracket.
In an embodiment, the training device is further configured to obtain actual debug data of the target test object, and compare the actual debug data with preset debug data, so as to determine whether the target test object is positioned and mounted on the mounting bracket.
In an embodiment, the training device is preset with feature information corresponding to the target test object, and is configured to output and display the feature information according to the received teaching experiment signal, where the feature information includes at least one of working principle demonstration information corresponding to the target test object, a teaching model of a component part and an internal structure corresponding to the target test object, and teaching scene demonstration information of a teaching scene of the target test object applied to a corresponding vehicle working condition.
In an embodiment, the training device is configured to set fault test content corresponding to a target test object, and the training device is configured to set fault test content corresponding to the target test object and simulate a vehicle training fault condition after receiving a signal for starting a training fault mode;
The training device is also used for stopping simulating the training fault working condition of the vehicle according to the received fault clearing signal.
In an embodiment, the training device is further configured to set fault test contents corresponding to a target test object, generate test questions according to the set fault test contents, and output the test questions after receiving the test mode signal, so as to simulate a vehicle fault condition according to the set fault test contents, and obtain test answers input by a user.
In an embodiment, the teaching experiment device is further provided with a plurality of test stations, each test station is provided with a plurality of test interfaces, and the test interfaces are used for detecting detection parameters of the target test objects.
In an embodiment, the training device is further configured to control the test interface to output a corresponding fault detection parameter according to the set fault test content.
Compared with the prior art, the invention has the following beneficial effects:
the intelligent network-connected automobile integrated sensor teaching experiment device comprises a test bed and a practical training device, wherein the test bed is used for being installed in an experiment area of the teaching experiment device, the test bed is provided with an installation support used for positioning and installing target test objects, different target test objects are positioned and installed through the installation support, so that the teaching experiment range is enlarged, the universality is improved, the position deviation of the target test objects in the test process can be avoided through the arrangement of the installation support, and the teaching effect is influenced;
The training device is connected with the target test object and is used for receiving detection signals transmitted by the target test object and calibrating actual target parameters of the target test object, and the training device is also used for simulating and calculating the detection parameters of the target test object in a preset vehicle working condition teaching scene according to the actual target parameters so as to ensure the reliability of the detection results of the target test object in the corresponding target vehicle working condition teaching scene, and helping students understand the relevant knowledge of the target test object in different application scenes by simulating the application of the target test object in different vehicle working condition teaching scenes, so that comprehensive teaching is realized, and teaching results are optimized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of functional modules of an embodiment of a training teaching system of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the training teaching system of the present invention;
FIG. 3 is a schematic diagram illustrating an embodiment of a cognitive teaching module according to the present invention;
FIG. 4 is a second schematic diagram of an embodiment of a cognitive teaching module according to the present invention;
FIG. 5 is a third schematic diagram illustrating an embodiment of a cognitive teaching module according to the present invention;
FIG. 6 is one of the implementation diagrams of an embodiment of the debug teaching module of the present invention;
FIG. 7 is a second schematic diagram of an embodiment of the debug teaching module of the present invention;
FIG. 8 is a schematic diagram illustrating an embodiment of a fault detection teaching module according to the present invention;
FIG. 9 is a second embodiment of a fault detection teaching module according to the present invention;
FIG. 10 is a schematic diagram of an embodiment of an application teaching module according to the present invention;
FIG. 11 is a second embodiment of an application teaching module according to the present invention;
FIG. 12 is a third embodiment of an application teaching module according to the present invention;
FIG. 13 is a diagram illustrating an embodiment of an application teaching module according to the present invention.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if all the directional indicators in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, if the specific posture is changed, the directional indicators are correspondingly changed.
If the description of "first", "second", etc. in this disclosure is for descriptive purposes only, it is not to be construed as indicating or implying a relative importance thereof or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. If the description of "a and/or B" is referred to in the present invention, it means that either scheme a or scheme B is included, or both scheme a and scheme B are included. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
At present, most of the teaching experiment devices on the market aiming at detection devices such as vehicle sensors can only carry a single sensor, and cannot help to calibrate and detect target test objects 100 such as radar sensors, so that omnibearing teaching cannot be realized, and in addition, application pictures of different target test objects 100 in different vehicle working condition scenes cannot be provided in the teaching process, so that the teaching effect is not ideal.
For solving the problems of incomplete teaching contents and non-ideal teaching effects in the prior art, referring to fig. 1 to 13, the application provides an intelligent network-connected automobile integrated sensor teaching experiment device, which comprises a test bed and a practical training device 200.
The test bench is used for installing the experimental area at teaching experimental apparatus, and the test bench is equipped with the installing support that is used for fixing a position installation target test object 100, installs different target test objects 100 through the installing support location to enlarge teaching experiment scope, improve the commonality, still can avoid target test object 100 to appear the position skew in experimental process through the setting of installing support, influence teaching effect.
The training device 200 is connected with the target test object 100, and is configured to receive a detection signal transmitted by the target test object 100 and calibrate an actual target parameter of the target test object 100, and the training device 200 is further configured to simulate and calculate a detection parameter of the target test object 100 in a preset vehicle working condition teaching scene according to the actual target parameter. In this way, the reliability of the detection result of the target test object 100 in the corresponding target vehicle working condition teaching scene can be ensured, the students are helped to understand the relevant knowledge of the target test object 100 in different application scenes by simulating the application of the target test object 100 in different vehicle working condition teaching scenes and calculating the teaching parameters of the target test object 100 in the preset vehicle working condition teaching scene, the comprehensive teaching is realized, and the teaching result is optimized.
Optionally, the intelligent network-connected automobile integrated sensor teaching experiment device at least comprises a control part and a display part, wherein the control part is used for receiving the detection signal transmitted by the target test object 100 and calibrating the actual target parameter of the target test object 100, and the control part is also used for simulating and calculating the detection parameter of the target test object 100 in a preset vehicle working condition teaching scene according to the actual target parameter, displaying the detection parameter, the simulated vehicle working condition teaching scene and the like through the display part. The control section includes a processor such as a CPU, a memory, and the like. The memory may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory, or alternatively may be a storage device independent of the aforementioned processor. The display unit includes a display or other device having a display function. The target test object 100 may be, but is not limited to, preset by the system, specifically may be temporarily during teaching, or selected by a user from a plurality or groups of target test objects 100 preset by the system.
In this application, the control portion includes a plurality of functional modules such as cognitive teaching module, dress transfer teaching module, fault detection teaching module, application teaching module at least, realizes cognitive teaching function through cognitive teaching module, realizes the dress transfer teaching function through dress transfer teaching module, realizes fault detection teaching function through fault detection teaching module, realizes functions such as application teaching function through application teaching module.
The existing teaching management system for intelligent network connection does not need to adopt different platform teaching for different teaching contents due to incomplete functions, for example, teaching for hardware contents and demonstration for different vehicle working condition scenes are respectively realized through different teaching devices. The utility model provides a carry out full-scale teaching through the setting of multiple teaching function, combine different vehicle operating mode scenes to introduce target test object 100 deeply from hardware to algorithm, not only can avoid the cost that needs to adopt different platform teaching to lead to different teaching contents too high and inconvenient problem of teaching, can also make teaching contents more comprehensive, satisfy different course teaching demands, improve teaching efficiency and optimize teaching achievement.
The assembly and adjustment teaching module has a calibration function, and actual target parameters of the target test object 100 are obtained through the calibration function. Specifically, the calibration function is configured to further calibrate the actual parameter of the target test object 100 according to the error obtained by comparing the actual detection value of the target test object 100 with the preset value, so as to obtain the actual target parameter of the target test object 100. By simulating the application of the target test object 100 in teaching scenes of different vehicle working conditions, students are helped to understand the relevant knowledge of the target test object 100 in different application scenes.
Referring to fig. 10 to 13, the application teaching function is used to simulate a corresponding vehicle condition teaching scene according to a set or user-side designated target test object 100, and the application teaching function may be used to simulate one or more target test objects 100 in a corresponding vehicle condition teaching scene, and the target test object 100 may be, but is not limited to, preset by a system, specifically may be temporarily set by the user-side during teaching, or may be selected by the user-side from a plurality of or a plurality of groups of target test objects 100 preset by the system. The application teaching function is used for demonstrating that the target object to be tested works in different vehicle working condition teaching scenes.
Referring to fig. 6 and 7, in an embodiment, the training device 200 is further configured to obtain actual debug data of the target test object 100, and compare the actual debug data with preset debug data to determine whether the target test object 100 is positioned and mounted on the mounting bracket.
Specifically, the debugging function module of the training device 200 is used for realizing the debugging teaching function. Specifically, in the present application, the debug function is used for presetting debug data corresponding to a target test object 100 such as a radar sensor, and taking the preset debug data as original information, by simulating original information corresponding to the target test object 100 such as the radar sensor in virtual simulation software, and performing data analysis on the simulated original data in combination with corresponding software drivers, so as to determine whether the target test object 100 is positioned and mounted on a mounting bracket, and obtain actual debug data.
Optionally, the assembly and adjustment education module of the training device 200 further has a disassembly and assembly function, and the disassembly and assembly function controls the display part to display the disassembly and assembly steps of the target test object 100, so as to instruct the user to disassemble the target test object 100 into a plurality of component parts, or instruct the user to assemble the plurality of component parts into the target test object 100, and instruct the user to disassemble and assemble the target test object 100, so that the student user can understand the hardware structure and the hardware maintenance related knowledge of the target test object 100 conveniently, and further examine the disassembly and assembly capability of the student on hardware.
Referring to fig. 3 to 5, in an embodiment, the training device 200 is pre-configured with feature information corresponding to the target test object 100, and is configured to output and display the feature information according to the received teaching experiment signal, where the feature information includes at least one of working principle demonstration information corresponding to the target test object 100, a teaching model of a component part and an internal structure corresponding to the target test object 100, and teaching scene demonstration information of a teaching scene of the target test object 100 applied to a corresponding vehicle working condition.
The training device 200 further includes a cognitive teaching module, where the cognitive teaching module is configured to output and display feature information according to the received teaching experiment signals, and specifically, the working principle of the target detection device such as the radar sensor can be explained in the form of a schematic diagram, text, etc., and the teaching module such as an internal structure diagram is used, and is assisted with text explanation, so as to further help students understand and master the structure and principle of the target detection device. The illustrated cognitive teaching module can be used for pre-storing and manufacturing characteristic information teaching resources of the target test object 100, and is used for demonstrating the working principle, the component parts and the internal structure types of the target test object 100, and theoretical knowledge of the application of the target test object 100 in an unmanned vehicle and the like in a manner of characters, pictures, teaching models, videos and the like, so that students are helped to have basic understanding before actual operation.
In an embodiment, the operation part of the training device 200 is used for interacting with a user terminal, the user terminal includes a teacher terminal, a student terminal and an interaction module, the teacher terminal interacts with the student terminal through the interaction module, and the teacher terminal is used for setting a teaching instruction and interacts with the service terminal and the student terminal according to the teacher authority corresponding to the teacher terminal; the student end is used for interacting with the server end and the teacher end according to the received teaching instruction and the student authority corresponding to the student module. The operation part comprises a right management module, wherein the right management module is provided with a teacher right module and a student right module corresponding to a teacher end and a student end, the teacher right module is used for setting teacher rights, and the rights supported by the teacher end comprise, but are not limited to, adding a class, modifying a class name, deleting a class, adding student information, modifying a student name, deleting student information, resetting student passwords, checking class scores, checking student personal scores, setting faults/clearing faults, checking/modifying fault test paper, deleting fault test paper, adding fault test paper, starting an examination and ending an examination. The student authority module is used for setting a student authority module, and the authorities supported by the student end include, but are not limited to, modifying personal passwords, checking personal scoring conditions of the students and entering examination answering questions. In the application, the interactive module is a man-machine friendly interactive interface of a user direct contact system, the interactive module is divided into two interactive interfaces according to a teacher end and a student end, the teacher end interactive interface presents all functions corresponding to teacher rights, and the student end interactive interface presents all functions corresponding to student rights. The user end interacts with the service end, the teacher end interacts with the student end, and the interaction module comprises, but is not limited to, an input module, an output module and a communication module, and is used for realizing information interaction in the forms of characters, images, voices and the like.
Referring to fig. 8 and 9, in an embodiment, the training device 200 is configured to set the fault test content corresponding to the target test object 100, and the training device 200 is configured to set the fault test content corresponding to the target test object 100 and simulate the vehicle training fault condition after receiving the start training fault mode signal. The fault detection teaching function of the practical training device 200 helps the user to conduct troubleshooting training so as to further assist the user in understanding the relevant knowledge of intelligent network fault maintenance.
The training device 200 is further configured to suspend simulating the training fault condition of the vehicle according to the received fault clearing signal.
It can be appreciated that the fault detection teaching module is pre-configured with a fault training mode (or fault mode). In the fault training mode, the fault detection teaching module is used for providing fault test contents corresponding to the target test object 100 for the user side, simulating a vehicle working condition fault teaching scene, and acquiring and storing fault test data input by the user side. In the fault training mode, the user side can end the fault test at any time, that is, the fault detection teaching module is further used for stopping simulating the vehicle training fault working condition after the fault clearing signal output by the user side is received.
In an embodiment, the teaching experiment device is further provided with a plurality of test stations, each test station is provided with a plurality of test interfaces, and the test interfaces are used for detecting the detection parameters of the target test objects 100. The sensor fault training device is used for training common faults of the sensor through the set test interface.
In an embodiment, the training device 200 is further configured to control the test interface to output corresponding fault detection parameters according to the set fault test content.
Optionally, the practical training device 200 shown in the present application is used for being associated with a test bench, a fault board is disposed on the test bench, the fault board is used for feeding back fault signals, one or more target test objects 100 are disposed on the test bench, one or more test sites are disposed on the fault board, and the fault detection teaching function is used for collecting signals on the fault board and obtaining fault detection information such as a device name, a fault site, a fault type, a fault phenomenon, a multimeter gear, a multimeter connection, and multimeter reading information of the target test objects 100. The intelligent network-connected automobile integrated sensor teaching experiment device is also used for displaying simulated fault test phenomena through the display part, providing fault test contents corresponding to the target test objects 100 for users, facilitating students to perform relevant fault elimination training of the target test objects 100 such as corresponding radar sensors on the system, and the fault detection teaching function is also used for acquiring fault test data input by the users in the fault elimination process so as to feed back the fault test results and help the users to perform fault elimination learning training.
In an embodiment, the fault detection teaching module is preset with an assessment mode, the training device 200 is further configured to set fault test contents corresponding to the target test object 100, generate test questions according to the set fault test contents, and output the test questions after receiving the assessment mode signal, so as to simulate a vehicle fault condition according to the set fault test contents, and obtain a test answer input by a user.
And in the examination mode, the fault detection teaching module is used for providing test questions for the student end and simultaneously starting timing, so as to obtain and store answering operation of the student end in the preset test time, and stopping timing after the timing time reaches the preset test time. The preset test time can be set by the teacher end or selected from a plurality of groups of test time preset by the fault detection teaching module by the teacher end; the fault detection teaching module may be configured according to the stored historical test time, and the specific configuration is not limited herein.
In an embodiment, the training device 200 generates teaching resources according to recorded teaching instructions set by a teacher end in different vehicle working conditions simulation scenes before power failure, so that students can learn by themselves conveniently, and the generated teaching resources can be directly called in the later teaching process, so that the teaching efficiency is improved.
The teaching instructions set by the teacher end in the simulation scenes of different vehicle working conditions can be stored as operation data, the operation data can specifically further comprise other teaching resources used by different user ends and the use times of the teaching resources, and the teaching resources can be, but are not limited to, flowcharts and operation flow demonstration information of operation videos pre-stored by the control part corresponding to the teaching scenes of different vehicle working conditions, and can also be teaching scene demonstration information stored by the cognitive teaching module. The control part is used for sequencing teaching resources used by a student end in different vehicle working condition teaching scenes, specifically, the control part is used for acquiring and comparing operation data stored in a preset statistical period (such as one week, one month, three months and the like), sequencing the teaching resources according to the operation data such as the use frequency, determining the teaching resources with the greatest use frequency of different vehicle working condition simulation scenes, generating corresponding teaching resource recommendation information according to the teaching resources with the greatest use frequency of different vehicle working condition simulation scenes, and helping students learn operation in a mode of outputting the corresponding teaching resource recommendation information when the student end continuously has a screen in the same vehicle working condition simulation scene in a short time.
Optionally, the control unit shown in the application may be used for a preset teaching time period, where the teaching time period may be associated with a teaching schedule, a teaching habit, and the like, generally from 8 am to 8 pm, and in the preset teaching time period, if there is no operation in a set screen-off time (such as 30 minutes or other set screen-off time), it is determined that a screen-off condition is reached, and the control unit automatically enters a screen-off state; of course, it is also possible to preset the screen-off automatic shutdown time (for example, 30 minutes after screen-off or other set time), and in the non-preset teaching time, if there is no operation action in the set screen-off time (for example, 30 minutes or other set screen-off time), the screen-off condition is determined to be reached, the control part automatically enters the screen-off state, and if the time for entering the screen-off state exceeds the preset screen-off automatic shutdown time, the control part controls shutdown, so as to achieve the energy saving effect and avoid power consumption in the power-on state for a long time.
In an embodiment, the answering operation includes a test answer input by a student end, a test answer and a test answer score are preset in the teacher end corresponding to the test questions, and the practical training device 200 is configured to compare the test answer of each student end with the preset test answer after timing is finished, and to count and output the corresponding test answer score to the teacher end when the test answer is the same as the preset test answer.
Further, the training device 200 is further configured to sort the test question scores of the student end, and transmit the generated test question score sorting table to the teacher end. The automatic batch-type paper sorting machine is used for realizing an automatic batch-type paper sorting function, automatically sorting scores of students, reducing paper reading steps of teachers and improving teaching efficiency.
Alternatively, the test question score may be set by the teacher end or selected from the multiple components preset by the training device 200 by the teacher end; the training device 200 may set the stored historical test question score. The score ranking of the questions shown may be, but is not limited to, a total score ranking table, a score ranking table corresponding to different questions. The specific arrangement is not limited herein, and may be any practical arrangement.
Optionally, the training device 200 is further preset with a simulation assessment mode (or training mode). Specifically, the fault detection teaching module is further configured to store fault test contents set by a user side (including a teacher side and a student side) before power failure, where the training device 200 is configured to determine a corresponding vehicle working condition simulation scenario and an average single test duration according to the fault test contents, set fault test contents of each preset test duration for each vehicle working condition simulation scenario, and select the fault test contents by the user side through the input vehicle working condition simulation scenario. The method is used for generating simulation examination questions or training questions according to the fault test contents routinely set by the user side, and controlling the test duration within a preset test duration.
The practical training is divided into a practical training mode and an assessment mode. The training mode is used for daily teaching, and a teacher can set multiple faults for different equipment components and clear the faults. The examination mode is suitable for uniformly examining the students after the course is finished. In the mode, all equipment faults are set by a teacher and stored in a test paper mode, so that the test paper is convenient to use for multiple times. The fault detection teaching module and the assessment module can be independently arranged according to actual needs to realize a fault training function through the fault detection teaching module and an assessment function through the assessment module; or combining the fault detection teaching module and the checking module to realize a fault training function, a checking function and other functions capable of checking fault test teaching results or assisting in checking the fault test teaching results; specifically, the present invention is not limited to this specific configuration.
As an alternative embodiment, the control unit may be further preset with a proctorial mode. Specifically, the control part is also used for providing test questions for the student end and simultaneously starting on-site monitoring of the machine, the control part is used for acquiring on-site machine layout information through on-site monitoring, correlating the on-site machine layout information with student login information, determining the adjacent machine and students using the adjacent machine, and transmitting the current monitoring picture of the adjacent machine to the teacher end to remind of on-site monitoring when the time interval of the student end for carrying out the same answering operation three times or more in succession through the adjacent machine is smaller than the preset alarm time.
In one embodiment, the mounting bracket is removably mounted to the test stand and has a detent configured to mate with the target test object 100.
In particular, different mounting test stands may be provided corresponding to different target test subjects 100. For example, when the target test object 100 is a lidar, the illustrated test stand may be configured as a rotatable anti-shake device such as a metal panoramic spherical anti-shake device for rotating an angle and adjusting a coordinate system. When the target test object 100 is the millimeter wave radar 130, a radar corner reflector may be further provided corresponding to the test bench to further achieve calibration. When the target test object 100 is a visual camera such as a binocular camera, a chessboard calibration board may be further provided after the visual camera is mounted on the test stand to further achieve calibration. When the target test object 100 is the ultrasonic radar 120, the ultrasonic radar 120 can be embedded in a positioning groove corresponding to the test bench, and detachable connection can be realized by pressing the clamping ring. When the target test object 100 is the integrated navigation, the integrated navigation device can be correspondingly installed on a corresponding test bed.
In an embodiment, the target test object 100 includes at least one of a laser radar 110, an ultrasonic radar 120, a millimeter wave radar 130, a camera device 140, and a navigation device 150.
The intelligent network-connected automobile integrated sensor teaching experiment device is provided with a practical training system corresponding to a target test object 100, and specifically comprises an ultrasonic radar physical virtual practical training system, a millimeter wave radar physical virtual practical training system, a combined navigation physical virtual practical training system, a vision physical virtual practical training system, a laser radar physical virtual practical training system and a sensor integrated virtual practical training system, wherein each system comprises a cognitive teaching function, an assembly and adjustment teaching function, a fault detection teaching function, an application teaching function and other various teaching functions, and the intelligent network-connected main stream sensor comprehensive teaching functions such as theory, hardware, algorithm and the like are covered, so that teaching contents are more comprehensive.
In an embodiment, when the target test object 100 includes the image capturing device 140, the training device 200 is further configured to obtain a detection frame of the target test object 100 in a preset teaching scene of the vehicle working condition, and generate and output a detection map according to the detection frame and the detection parameters.
Specifically, when the target test object 100 includes the camera 140, the application teaching function may be further used to generate a detection map according to the detection picture of the target test object 100 in the teaching scene corresponding to the target vehicle working condition, so as to intuitively demonstrate the detection result for the user in the form of the map picture. Specifically, the application teaching function may be used to save the detection parameters of the target test object 100 in the teaching scene corresponding to the working condition of the target vehicle, and play back the point cloud data packet when offline, and generate the point cloud map in the pcd format or in other various formats by using NDT (Normal Distributions Transform) normal distribution conversion algorithm.
In one embodiment, the target test object 100 is an ultrasonic radar 120:
the cognitive teaching function is used for controlling the display portion to display characteristic information of the target test object 100, and when the target test object 100 is the ultrasonic radar 120, the cognitive teaching function can be specifically used for controlling the display portion to display characteristic information such as working principle, internal structure, unmanned vehicle application and the like of the ultrasonic radar 120.
The assembling and debugging teaching function has the functions of disassembly and assembly, debugging and calibration. When the target test object 100 is the ultrasonic radar 120, the assembling and disassembling function pre-stores teaching videos for assembling and disassembling the ultrasonic radar 120, so that a user can conveniently assemble and disassemble the ultrasonic radar 120 on the test bed by comparing the pre-stored videos at any time. The ultrasonic radar 120 has multiple probes, and the debugging function divides the data acquired by the ultrasonic radar 120 into multiple steps of parameter configuration, sensor enabling, ultrasonic emission, ultrasonic feedback, signal receiving, can message feedback, data analysis, data visualization and the like, so as to explain to students how to configure the working mode of the ultrasonic radar 120, how to control the probes to start working and how to control the probes to emit ultrasonic waves, how to control the ultrasonic waves to encounter obstacles to generate reflected signals, the signals are received again by the probes, the probe signals are summarized by the controllers and are organized into can messages, the calculation unit analyzes can original message data, the analyzed multiple probe data are displayed in real time through the display part according to the position of the vehicle body, and the like, so that the actual debugging data of the ultrasonic radar 120 are displayed through the display part. The calibration function can compare the actual measured values of the dead zone distance, the trigger distance, the farthest distance and the like of each path of probe detection area of the ultrasonic radar 120 with a preset value, calculate a distance correction curve according to the obtained error, and meanwhile, the adjustment teaching function is also used for calibrating the actual parameters of the actual dead zone distance, the actual trigger distance, the actual farthest distance and the like of the detection area of the ultrasonic radar 120, so that the ultrasonic radar 120 is used for the function of teaching scenes corresponding to the working conditions of the target vehicle.
The fault detection teaching function is used for controlling the display part to display corresponding fault test contents and fault test data of the target test object 100 according to the fault type. The fault detection teaching function is preset with a fault training mode (or a fault mode) and an assessment mode. In the fault training mode, the fault detection teaching function is used for providing fault test contents corresponding to the target test object 100, simulating a vehicle working condition fault teaching scene, removing faults by students through measuring signals of the wiring terminals on the detection panel, and acquiring and storing fault test data input by users so as to acquire assessment results of the user side such as a student side. In the fault training mode, the user can end the fault test at any time, that is, the fault detection teaching function is also used for stopping simulating the vehicle training fault working condition after the received fault clearing signal input by the user. The fault detection teaching module is a module for examining student knowledge and mastering, the fault detection teaching function supports the creation of fault test paper, fault types of a plurality of fault points can be set at one time, and the fault detection teaching function has the functional operations of starting test, checking test paper, deleting test paper, ending test and checking test results on the created test paper. And in the examination mode, the fault detection teaching function is used for providing test questions for the user and simultaneously starting timing, so as to acquire and store answering operation of the user in the preset test time, and stopping timing after the timing time reaches the preset test time. The operation portion of the practical training device 200 shown in the application is used for interacting with a user terminal, the user terminal comprises a teacher terminal and a student terminal, answer operation comprises test answers input by the student terminal, the teacher terminal is provided with test answers and test answer scores in advance corresponding to the test questions, and an examination mode is used for comparing the test answers of each student terminal with the preset test answer after timing is finished and counting and outputting corresponding test answer scores to the teacher terminal when the test answers are identical to the preset test answer. Further, the examination mode is also used for ordering the test question scores of the student end, and the generated test question score ordering list is transmitted to the teacher end. The automatic batch-type paper sorting machine is used for realizing an automatic batch-type paper sorting function, automatically sorting scores of students, reducing paper reading steps of teachers and improving teaching efficiency. The test question score can be set by the teacher end or selected from preset multicomponent numbers by the teacher end; the setting may be performed based on the stored historical test question score. The score ranking of the questions shown may be, but is not limited to, a total score ranking table, a score ranking table corresponding to different questions. The preset test time can be set by the teacher end or other user ends by themselves or can be selected from a plurality of preset test time groups by the teacher end; the test time may be set according to the stored history, and the actual setting may be specifically set, and is not limited thereto.
The application teaching function is used for controlling the display part to display the vehicle working condition teaching scene and the detection parameters of the target test object 100 in the corresponding target vehicle working condition teaching scene. The application teaching function is used for simulating at least one of a vehicle collision working condition teaching scene, a vehicle lane change working condition teaching scene and a vehicle blind zone working condition teaching scene according to the received practical training operation signal, and acquiring detection parameters of the ultrasonic radar 120 in the corresponding target vehicle working condition teaching scene. For teaching students the use of the ultrasonic radar 120 in advanced driving assistance in conjunction with assistance tools.
In one embodiment, when the target test object 100 is the millimeter wave radar 130, the millimeter wave radar 130 has a plurality of:
the assembling and debugging teaching function has the functions of disassembly and assembly, debugging and calibration. When the target test object 100 is the millimeter wave radar 130, the millimeter wave radar 130 comprises a front millimeter wave and four or other multiple angle millimeter wave radars 130, and the disassembly and assembly functions are pre-stored with teaching videos for disassembly and assembly of the front millimeter wave and other multiple angle millimeter wave radars 130, so that a user can conveniently disassemble and assemble the millimeter wave radars 130 on the test bench by contrasting pre-stored videos at any time. The calibration function can perform angle calibration on the plurality of millimeter wave radars 130, by adjusting the angle of the millimeter wave radars 130 to a proper angle and placing the radar corner reflectors at positions, inputting corresponding distance and angle values in calibration software, further judging whether the calibration is successful or not by automatically calculating whether the radar corner reflectors are within a reasonable error range, and further calibrating the actual detection angles and the actual detection distances of the plurality of millimeter wave radars 130 by adjusting the teaching function.
The application teaching function is used for simulating at least one of a vehicle self-adaptive cruising working condition teaching scene, a vehicle automatic emergency braking working condition teaching scene, a vehicle lane changing working condition teaching scene and a vehicle blind area working condition teaching scene according to the received practical training operation signal, and acquiring detection parameters of the millimeter wave radar 130 in the corresponding target vehicle working condition teaching scene.
The specific embodiment when the target test object 100 is the millimeter wave radar 130 refers to the above embodiment where the target test object 100 is the ultrasonic radar 120, and will not be described herein.
In one embodiment, when the target test object 100 is co-navigation, the co-navigation includes two antennas:
the assembling and debugging teaching function has the functions of disassembly and assembly, debugging and calibration. When the target test object 100 is integrated navigation, the debugging function is used for sequentially analyzing the positioning signals sent by the integrated navigation in the serial port into different fields including UTC time, latitude hemisphere, longitude hemisphere, GPS state, satellite number, horizontal longitude factor, ellipsoid height, etc. so as to obtain actual debugging data of the integrated navigation. The calibration function can configure relevant parameters and analysis parameters of the integrated navigation through the arm lengths of the two antennas and the distance between the integrated navigation and the center of the rear axle of the vehicle, and is used for further calibrating the actual arm lengths of the two antennas and the actual detection distances of the two antennas through the adjustment teaching function.
The application teaching function is used for simulating a vehicle positioning working condition teaching scene according to the received practical training operation signal and acquiring detection parameters of the combined navigation in the corresponding target vehicle working condition teaching scene.
The specific implementation of the target test object 100 in the integrated navigation is referred to the other embodiments described above, and will not be described in detail herein.
In an embodiment, when the target test object 100 is a vision camera, the vision camera includes a plurality of cameras including at least one of a binocular camera, a monocular camera, a pan-around camera, and an infrared camera.
The assembling and debugging teaching function has the functions of disassembly and assembly, debugging and calibration. When the target test object 100 is a vision camera, the disassembly and assembly function pre-stores teaching videos for disassembly and assembly of the binocular camera, the monocular camera, the panoramic camera, the infrared camera and the like, so that a user can conveniently disassemble and assemble the vision camera on the test bench against the pre-stored videos at any time. The debugging function is used for setting starting and stopping operations on different types of cameras and acquiring corresponding actual debugging data so as to facilitate students to learn actual detection results of different cameras. The calibration function can calibrate the binocular camera, the monocular camera and other cameras through the checkerboard calibration plate, the types and the sizes of the checkerboards are set, the checkerboards are sequentially placed at 9 positions of a nine-grid picture displayed by the display part, and internal references of the cameras are calculated through 9 captured images after capturing are sequentially clicked and displayed in a calibration result; when calibrating the looking-around camera, paving matched calibration cloth around the training rack, sequentially switching the positions of the cameras, clicking projection calibration after clicking four corner points on the calibration cloth in the corresponding original image to calculate a calibration result, and storing the corresponding generated panoramic image. Thus, the actual detection positions of the cameras and the actual detection areas of the cameras can be further calibrated through the adjustment and education function.
The application teaching function is used for simulating at least one of a traffic condition teaching scene and a vehicle blind area condition teaching scene according to the received practical training operation signal, and acquiring detection parameters of the vision camera in the corresponding target vehicle condition teaching scene.
The specific embodiment when the target test object 100 is a vision camera refers to the other embodiments described above, and will not be described herein.
In one embodiment, when the target test object 100 is a lidar 110:
the assembling and debugging teaching function has the functions of disassembly and assembly, debugging and calibration. When the target test object 100 is the laser radar 110, the millimeter wave radar 130 comprises a single-line laser radar 110, a multi-line mechanical hybrid laser radar 110, a multi-line solid-state laser radar 110 and other multiple laser radars 110, and the disassembly and assembly functions are pre-stored with teaching videos for disassembly and assembly of the multiple laser radars 110, so that a user can conveniently disassemble and assemble the ultrasonic sensor on the test bench by comparing pre-stored videos at any time. The debugging function is used for setting start and stop operations for different types of lidars 110 and obtaining corresponding actual debugging data so as to facilitate students to recognize actual detection results of different lidars 110. The calibration function can measure the relative position and angle of the laser radar 110 relative to the center of the rear axle, and automatically marks the relative relation of the laser radar 110 coordinate system relative to the vehicle body coordinate system through software, so as to calibrate the actual detection angle and the actual detection distance of the laser radar 110 through the adjustment teaching function.
The application teaching function is used for simulating the automatic driving condition teaching scene of the vehicle according to the received practical training operation signal, and acquiring the detection parameters of the laser radar 110 in the corresponding target vehicle condition teaching scene and the environment map generated according to the detection parameters of the laser radar 110 in the corresponding target vehicle condition teaching scene.
The specific embodiment when the target test object 100 is the lidar 110 refers to the other embodiments described above, and will not be described herein.
In an embodiment, when the target test object 100 is a sensor complex and includes at least two of the ultrasonic radar 120, the millimeter wave radar 130, the integrated navigation, the vision camera, and the laser radar 110, the detailed description thereof will be omitted herein.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. An intelligent network allies oneself with car integrated sensor teaching experimental apparatus, its characterized in that includes:
The test bed is used for being arranged in an experimental area of the teaching experiment device and is provided with an installation bracket for positioning and installing a target test object;
the training device is connected with the target test object and is used for receiving detection signals transmitted by the target test object and calibrating actual target parameters of the target test object, and the training device is also used for simulating and calculating the detection parameters of the target test object in a preset vehicle working condition teaching scene according to the actual target parameters.
2. The intelligent network-connected automobile integrated sensor teaching experiment device according to claim 1, wherein the target test object comprises at least one of a laser radar, an ultrasonic radar, a millimeter wave radar, a camera device and a navigation device.
3. The intelligent network-connected automobile integrated sensor teaching experiment device according to claim 2, wherein when the target test object comprises the camera device, the training device is further configured to obtain a detection picture of the target test object in a preset vehicle working condition teaching scene, and generate and output a detection map according to the detection picture and the detection parameters.
4. The intelligent network-connected automobile integrated sensor teaching experiment device according to claim 1, wherein the mounting bracket is detachably mounted on the test stand, and a positioning groove matched with the target test object is formed in the mounting bracket.
5. The intelligent network-connected automobile integrated sensor teaching experiment device according to claim 4, wherein the training device is further configured to obtain actual debug data of the target test object, and compare the actual debug data with preset debug data to determine whether the target test object is positioned and mounted on the mounting bracket.
6. The intelligent network-connected automobile integrated sensor teaching experiment device according to claim 1, wherein the training device is pre-provided with feature information corresponding to the target test object, and is used for outputting and displaying the feature information according to a received teaching experiment signal, wherein the feature information comprises at least one of working principle demonstration information corresponding to the target test object, a teaching model of components and internal structures corresponding to the target test object, and teaching scene demonstration information of application of the target test object to a corresponding vehicle working condition teaching scene.
7. The intelligent network-connected automobile integrated sensor teaching experiment device according to claim 1, wherein the training device is used for setting fault test contents corresponding to a target test object, and the training device is used for setting fault test contents corresponding to the target test object and simulating a vehicle training fault condition after receiving a training fault mode starting signal;
the training device is also used for stopping simulating the training fault working condition of the vehicle according to the received fault clearing signal.
8. The intelligent network-connected automobile integrated sensor teaching experiment device according to claim 1, wherein the training device is further used for setting fault test contents corresponding to target test objects, generating test questions according to the set fault test contents, and outputting the test questions after receiving an assessment mode signal, so as to simulate vehicle fault conditions according to the set fault test contents and obtain test answers input by a user.
9. The intelligent network-connected automobile integrated sensor teaching experiment device according to any one of claims 1-8, further comprising a plurality of test stations, each of the test stations comprising a plurality of test interfaces for detecting detection parameters of the target test object.
10. The intelligent network-connected automobile integrated sensor teaching experiment device according to claim 9, wherein the training device is further used for controlling the test interface to output corresponding fault detection parameters according to set fault test contents.
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