Real vehicle testing method and device for driver state monitoring system

A driver status and monitoring system technology, applied in the automotive field, can solve problems such as insufficient actual performance

Pending Publication Date: 2021-12-07
FAW CAR CO LTD
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AI-Extracted Technical Summary

Problems solved by technology

[0003] The present invention provides a real-vehicle test method and device for a driver's state monitoring system. By obtaining the driver's facial movement feature collection and the CAN bus signal inside the vehicle, combined with the specific test conditions of the proposed method, the test data is obta...
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Method used

In sum, the present invention obtains the functional performance of the driver's state monitoring system by obtaining test data and judging the driver's state monitoring system by obtaining the driver's facial action feature collection and the CAN bus signal inside the veh...
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Abstract

The invention relates to a real vehicle testing method and device for a driver state monitoring system. The testing method comprises the following steps: 1, determining three factors of real vehicle testing; 2, defining a test case by combining three factors of a real vehicle test; 3, determining a correct standard test result of each use case according to a technical specification of a driver monitoring system so as to obtain a test evaluation index; 4, executing each test case, testing the driver state monitoring system, and recording a test result; 5, analyzing the function performance of the driver monitoring system according to the test result obtained in the step 4 in combination with the standard test result obtained in the step 3. According to the driver state monitoring system testing method, the driver face action characteristics are acquired, the CAN bus signals in the vehicle are acquired, the specific testing working conditions of the method are combined, the testing data are acquired to judge the function performance of the driver state monitoring system, and the testing accuracy of the driver state monitoring system in the real vehicle environment can be improved.

Application Domain

Software testing/debugging

Technology Topic

Driver/operatorSystematic testing +7

Image

  • Real vehicle testing method and device for driver state monitoring system
  • Real vehicle testing method and device for driver state monitoring system
  • Real vehicle testing method and device for driver state monitoring system

Examples

  • Experimental program(2)

Example Embodiment

[0028] Example one
[0029] See figure 1 , A method for testing the actual vehicle driver state monitoring system, comprising the steps of:
[0030] Step one, three factors determine the real vehicle tests;
[0031] See figure 2 The three factors including the driver status, vehicle motion status and the status of the external environment;
[0032] The operation state of the driver includes a driver, the driver's range of motion, and decorative three variable parameters;
[0033] The operation of the driver comprising: a right migraine, migraine left, looking to the right, looking left, straight ahead, looking upward, and bow.
[0034] The range of motion including large, medium and small.
[0035] The driver's decorations include undecorated, dark sunglasses, colored glasses, a mask, a baseball cap, hat and reflective sunglasses.
[0036] The vehicle includes a vehicle motion state of the gear, the vehicle speed and the traveling direction of three variable parameters;
[0037] The vehicle includes a gear D range, N block, R block, S block, M block, and P block.
[0038] The traveling direction comprises left, turn right, and straight ahead.
[0039] The vehicle comprises 0km / h, 9km / h, 29km / h and 35km / h.
[0040] The external environment state including sunny front light, backlight sunny, cloudy, no night lights, night street lamps, interior lights night open six parameter variables.
[0041] Step two, three factors by the actual vehicle test are combined, define test cases;
[0042] All the above-mentioned parameters to obtain the 63,504 permutations test, covering most of the scene facing the driver state function.
[0043] Step three, in each example determined the correct standard with test results, thereby obtaining evaluation test in accordance with the technical specifications of the driver monitoring system;
[0044] After completion of the test and its parameters defined conditions, according to the technical specifications of the driver monitoring system, the test in step-by-II was tested to determine the correct expected results so as to obtain the test evaluation.
[0045] Step four is performed each test case, the driver condition monitoring system for testing, and the test results are stored;
[0046] Vehicle and test the power, and turned on. Monitoring the driver's facial movements by the driver status for the camera, sound recording icon prompts and alerts the driver condition monitoring system sends completed by the vehicle computer surveillance cameras. Cassette collection vehicle via CAN bus data, eventually synchronize video browsing data bus, recorded, stored by the host computer to obtain a complete test data driver state function.
[0047] According to a predetermined test, the test one by one, and the corresponding stored record test results.
[0048] Step five, in conjunction with standard test results obtained on Step Three Step Four obtain test results to analyze driver performance monitoring system function.
[0049] After the test, the man-machine interface with the expected result of the recognition of the condition monitoring system where a driver under different operation of the light, the state of the vehicle and the vehicle motion warning sound pop machines are compared. Binding analysis and evaluation systems to identify failed performance data, to facilitate subsequent improvement, thus completing the test and evaluation of the driver state monitoring system.

Example Embodiment

[0050] Example 2
[0051] See image 3 Real vehicle test method, the test device of the actual vehicle driver state monitoring system for the realization of a driver state monitoring system, comprising:
[0052] Setting module, set the real tests for the three factors;
[0053] Combining module, configured to arrange three factors combine to form a test case;
[0054] Standard Test results module for determining a correct test result of each test case in accordance with the standard specifications of the driver monitoring system;
[0055] Testing means for executing each test case, the driver condition monitoring system for testing, and the test results are stored;
[0056]In the test module, a driver state monitoring camera, a vehicle monitoring camera, an external environment monitoring camera, a car CAN box tool; the driver status monitoring camera, is used to collect the state of the driver; the vehicle surveillance the camera, The icon prompt and sound warning of the driver status monitoring system and the external environment collected by the car outside monitoring module are synchronously browsed, recorded and stored in the bus data; the external environment monitors the camera for collecting the external environment of the vehicle. The automotive CAN box tool is used to collect in-vehicle bus data.
[0057] The driver status monitoring camera mounting position requires a full driver's facial state.
[0058] The vehicle monitoring camera installation location requires the full record of the pop-up window of the vehicle audio host and the alarm sound and other human machine interaction interface.
[0059] The external environment Monitoring The mounting position needs to completely reflect and record the forward road information and the light information.
[0060] The comparison module is used to compare the standard test results with the test results to analyze the functional performance of the driver monitoring system.
[0061] The comparative module is employed with a host computer.
[0062] In summary, the present invention obtains the specific test conditions of the vehicle's internal CAN bus signal, combined with the inside of the vehicle, and obtains the test data to determine the functional performance of the driver's state monitoring system. The accuracy of the status monitoring system test, solving the idealization of simulation testing, and actual performance is not sufficient.

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