CN107490787A - Vehicle-mounted viewing system outdoor scene simulating test device and its method of testing - Google Patents
Vehicle-mounted viewing system outdoor scene simulating test device and its method of testing Download PDFInfo
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- CN107490787A CN107490787A CN201710132506.1A CN201710132506A CN107490787A CN 107490787 A CN107490787 A CN 107490787A CN 201710132506 A CN201710132506 A CN 201710132506A CN 107490787 A CN107490787 A CN 107490787A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Closed-Circuit Television Systems (AREA)
- Traffic Control Systems (AREA)
Abstract
The present invention relates to a kind of vehicle-mounted viewing system outdoor scene simulating test device and its method of testing, by for gathering and recording the image of motor vehicle environment and the outdoor scene analog module of radar signal in actual driving procedure, real scene simulated signal is sent to main control module, after master control set forwards the signal to viewing system to be tested, the accuracy of its feedback signal is detected with reference to radar signal.In addition, also the video information of test log and test process is preserved by memory module.The present invention is carried out objective and judged exactly, so as to ensure the accuracy of test by the combination of image and radar to the warning function of vehicle-mounted viewing system.Many-sided record has been carried out in test process, problem is efficiently solved by playing back video and analysis to LOG.
Description
Technical field
The present invention relates to automobile panoramic round-looking system performances areas, more particularly to a kind of vehicle-mounted viewing system outdoor scene simulation is surveyed
Trial assembly is put and its method of testing.
Background technology
With the fast development of Automobile Electronic Industry, it is vehicle-mounted look around driven as auxiliary in a very important part, allow
Driver, which understands, to be checked vehicle-surroundings with the presence or absence of barrier and understands the relative bearing and distance of barrier, so very straight
See, and any blind spot is not present, can so improve driver and control vehicle calmly, effectively reduce and scratch, collide, subsideing
The generation of accident.It is perfect with miscellaneous function, to the demand of software test also more and more higher, how preferably to detect actual row
The function of being looked around during car turns into the most important thing.
To sum up, test equipment of the prior art, it is to meet trigger condition by being sent to examining system not timing mostly
Picture signal, then analyze the feedback data that is obtained from examining system to be tested.But actual drive is a dynamic
Process, such a Static Detection can not reflect performance well.In addition, a kind of regarding for one section of formation of simulation was also disclosed later
Frequently, and according to the road conditions of video detect the early warning performance of panoramic looking-around system.Analog video can come from rendering and be adopted with outdoor scene
Collection, but the video rendered is not true enough after all, influences result of determination, and need artificially to carry out judging triggering bar after outdoor scene collection
Whether part is set up, and this makes post-processing have very big workload, and because panoramic video has certain distortion, by artificial
It is also not necessarily accurate to judge, it is thus possible to can have the operating mode for being actually needed early warning, is but ignored because of artificial erroneous judgement.
The content of the invention
In order to solve the above technical problems, The present invention provides vehicle-mounted viewing system outdoor scene simulating test device and its test
Method.
A kind of vehicle-mounted viewing system outdoor scene simulating test device, including：
Outdoor scene analog module, for gathering and recording in actual driving procedure the image of motor vehicle environment and radar signal as mould
Intend outdoor scene signal, and outwards transmit real scene simulated signal.The radar signal is used to reflect that the distance of automobile and peripheral obstacle is believed
Breath.
Main control module, for real scene simulated signal described in system forwards to be tested, obtaining the anti-of the test system to be measured
Feedback signal, and feedback signal and radar signal that current time is obtained are compared, and judge whether feedback signal is correct.
Memory module, for preserving the feedback signal and test log of test system to be measured in test process.
Further, in addition to for showing the early warning display module of the feedback signal；The early warning display module bag
Auditory tone cues module and light prompt module are included, the early warning display module is according to vehicle body and barrier in real scene simulated signal
Range information show different warning grades.
Further, in addition to vehicle body state simulation module, the vehicle body state simulation module using CAN protocol to described
Main control module sends vehicle body status signal.
Further, in addition to Video Output Modules, main control module described in the Video Output Modules simultaneous display are connect
The real scene simulated signal of receipts.
In addition, the present invention also provides a kind of vehicle-mounted viewing system outdoor scene analog detection method, main control module is employed, the master
Control module is used to send real scene simulated signal and judges the whether accurate of system feedback signal to be tested, comprises the following steps：
S10. the main control module receives one section of real scene simulated vision signal and same with the real scene simulated vision signal road conditions
The radar signal of step；
S20. the main control module sends real scene simulated signal to the test system to be measured, while it is anti-to obtain the test system
The pre-warning signal of feedback；
S30. the pre-warning signal and radar signal, the difference of both warning grades of analysis are parsed；
S40. the performance of early warning system is judged according to the size of the difference.
Preferably, in addition to alert status simultaneous display exports step, specifically includes at least one in following sub-step：
The real scene simulated signal is exported by display device；
Pass through sound or light efficiency display output radar signal.
Further, in addition to vehicle body state simulation step：
The main control module receives the outside CAN signal on vehicle body state；
The CAN signal is transmitted to the test system to be measured.
Further, in addition to recording step：
The main control module starts to preserve test log before test initialization；
The main control module starts to record the video in test process after test initialization.
Preferably, the warning grade divides according to the distance between vehicle body in real scene simulated and barrier, warning grade
Urgency with distance be in inverse correlation.
The beneficial effect played of the present invention includes：
1. by the combination of image and radar, carry out objective to the warning function of vehicle-mounted viewing system and comment exactly
Sentence, so as to ensure the accuracy of test.
2. carried out many-sided record in test process, efficiently solved by playing back video and analysis to LOG
Problem.
Brief description of the drawings
Fig. 1 is the test device architecture principle figure in the embodiment of the present invention 1.
Fig. 2 is the test device architecture principle figure in the embodiment of the present invention 2.
Fig. 3 is the method for testing flow chart in the embodiment of the present invention 2.
Wherein, main control module 1；Outdoor scene analog module is 2；Memory module is 3；Early warning display module 4；Video frequency output mould
Block is 5；Vehicle body state simulation module is 6；Test system to be measured is 7.
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention are more
Easily it is readily appreciated by one skilled in the art, so as to make apparent define to protection scope of the present invention.
Embodiment 1：
A kind of vehicle-mounted viewing system outdoor scene simulating test device, as shown in figure 1, including：Outdoor scene analog module 2, memory module 3 with
And main control module 1.Wherein main control module 1 is connected with memory module 3 and outdoor scene analog module 2 respectively.
The outdoor scene analog module 2 exports real scene simulated signal to main control module 1, is built-in with memory cell inside it, stores
There are a variety of different real scene simulated signals.The real scene simulated signal includes the image letter around vehicle body in one section of driving conditions
Breath, while the radar signal obtained in this section of driving conditions is additionally included in, radar signal is used to reflect vehicle body with around vehicle body hindering
Hinder the distance of thing.The acquisition modes of radar signal can be it is a variety of, can be by the key position of each side of automobile
Radar is set, and radar detects for peripheral obstacle and obtains reflected signal.Most each radar obtains outdoor scene analog module 2 at last
The regular radar signal into reflection motor vehicle environment barrier situation of signal, the value of radar signal or change can be passed through
The barrier situation of motor vehicle environment in Trend judgement driving conditions.
Real scene simulated signal can derive from image and the corresponding radar signal that computer is obtained by 3D modeling,
The image information and radar signal of motor vehicle environment for during advance real vehicle drives gathering and recording can be derived from.The present embodiment
In, the signal of outdoor scene analog module 2 derives from the latter, and the video recorded in actual driving procedure is more pressed close to truly, reduces and survey
Examination hall scape is in the difference of actual scene.
It should be noted that the picture signal of looking around of real scene simulated signal must be consistent with radar signal sequential with operating mode,
That is a certain moment in panoramic view picture, the one party in panoramic view picture is or multiple orientation occur relatively close to barrier,
Radar signal can also embody to the position of barrier.
At the aspect of main control module 1, it is used for the working condition and test process of coordinating, control whole device.Itself and reality
Scape analog module 2 establishes communication, obtains the real scene simulated signal of outdoor scene analog module 2, is on the other hand also built with test system 7 to be measured
Vertical communication, the real scene simulated signal is forwarded to test system 7 to be measured, while receive test system 7 to be measured and send back the feedback signal come.
In addition, main control module 1 possesses comparing function, for also by feedback signal compared with radar signal, according to than
Relatively result judges the performance of test system 7 to be measured.
And memory module 3 is then used for the feedback signal and test log for preserving test system 7 to be measured in test process.In addition
One filming apparatus can also be set, carry out video capture, and storage but memory module 3 to test process when test
In, so as to the test log by reading memory module 3, and video field during according to the place of error to trace mistake
Scape, it is easy to problem analysis.
Embodiment 2：
The present embodiment and the difference of embodiment 1 are：As shown in Fig. 2 the present embodiment also includes early warning display module 4, vehicle body control
Molding block and Video Output Modules 5.Wherein early warning display module 4 connects main control module 1, by the feedback signal in test process
And radar signal is shown, consequently facilitating tester observes test process.The early warning display module 4 includes auditory tone cues
Module and light prompt module, in the present embodiment, auditory tone cues module can with but be not limited only to buzzer, loudspeaker etc., and
Light prompt module can be LED or display screen.In order to differentiate the urgency level of early warning, early warning display module 4 can basis
Vehicle body shows different warning grades from the range information of barrier in mould outdoor scene signal, when the distance of vehicle body and barrier is got over
Small, then early warning urgency level is bigger, and warning grade is higher.
In addition to the simulation of vehicle body state can be realized, such as reversing automobile state, turn signal state, steering wheel position
Vehicle body state simulation module 6 is also provided with Deng, test system, vehicle body state simulation module 6 passes through the profit of vehicle body state simulation module 6
Vehicle body status signal is sent to main control module 1 with CAN protocol, so as to carry out the test of more diversification.
For the further visualization to test process, test device also includes Video Output Modules 5, Video Output Modules
5 are connected with main control module 1, the same real scene simulated signal for receiving main control module 1 and forwarding, and the signal and test process are carried out
It is synchronous to play, intuitively show simulation test scene.
Embodiment 3：
The present embodiment provides the present invention and also provides a kind of vehicle-mounted viewing system outdoor scene analog detection method, as shown in figure 3, should
Method is based on main control module 1, and the main control module 1 is used to send real scene simulated signal and judges the feedback signal of test system 7 to be measured
It is whether accurate.Wherein analog signal is from its peripheral outdoor scene signal imitation equipment.Specific method comprises the following steps：
S10. main control module 1 receives one section of real scene simulated vision signal and the thunder synchronous with real scene simulated vision signal road conditions
Up to signal, vision signal is looked around in the shoot on location that real scene simulated vision signal may come from the actual driving procedure in one end,
Can be 3D render scenes.In addition, radar signal is the signal that setting radar exports around vehicle body in this section of driving conditions,
Because radar signal and vision signal are in same sequential, thus the barrier situation in vision signal can with radar signal
Barrier situation is consistent.
S20. real scene simulated vision signal and radar signal of the main control module 1 in step S10 is received, it is determined that mould
After plan outdoor scene signal and radar signal do not have exception, that is, start to send the real scene simulated signal to test system 7 to be measured, it is to be tested
System 7 proceeds by test process.At the same time, the synchronous early warning for obtaining test system and being fed back in synchronization of main control module 1
Signal, the pre-warning signal of feedback are the content that test device needs to analyze, and main control module 1 judges to treat by the pre-warning signal
Whether the performance of test system 7 is reliable.
In the present embodiment, warning grade divides according to the distance between vehicle body in real scene simulated and barrier, warning grade
Urgency with distance be in inverse correlation.
S30. main control module 1 parses to pre-warning signal first, and is stepped on according to early warning of the sequential relationship to pre-warning signal
Remember capable caching into, while same processing is also done to acquired radar signal, finally by the pre-warning signal and thunder of synchronization
Early warning registration up to signal is compared, and judges its difference.Under normal circumstances, the early warning registration of pre-warning signal and radar signal
Should be consistent, so as to ensure the accuracy of the early warning of test system 7 to be measured.
The difference of pre-warning signal and radar signal is engraved when S40. recording each, can be sentenced according to the size of the difference
Determine the performance of early warning system.Specifically, can be with the average of calculating difference or the variance according to difference etc. is come to be tested
The accuracy of system 7.The average of difference is smaller, and variance is about small, illustrates that the accuracy of test system 7 to be measured is better.
The present embodiment is tested vehicle-mounted viewing system to be tested by this kind of method, can be effectively to be measured
The performance of test system 7 is determined, and avoids the erroneous judgement of human factor, and test system is relatively reliable.
Embodiment 4：
Difference of the present embodiment with implementing 3 is, same for the ease of observation of the test man to pre-warning signal, in addition to alert status
Display output step is walked, specifically includes at least one in following sub-step：
First is to export real scene simulated signal by display device, according to real world devices during real scene simulated signal is exported
Image pre-warning signal is manually judged, improve accuracy.
Second is by sound or light efficiency display output radar signal, facilitates assurance of the test man to objective conditions, and
When know should early warning situation, so as to further facilitate the contrast in test process.
In addition, in order that the more diversification of test process and content, in addition to vehicle body state simulation step：
Main control module 1 receives the outside CAN signal on vehicle body state, and vehicle body status signal can be simulated by CAN signal and filled
Put to obtain, automobile of the prior art carries out the interaction of vehicle body state using CAN communication agreement mostly.Pass through CAN signal mould
Intend device to be simulated to various vehicle body states, and be sent to main control module 1, be easy to main control module 1 to obtain different simulations
Outdoor scene signal.Such as steering, back-up lamp vehicle body signal, can there is this CAN communication analogue means to be simulated.
After main control module 1 receives this kind of signal, the CAN signal is transmitted to test system 7 to be measured.Test system is being tested
During different prediction policies can be also adjusted according to the CAN signal of acquisition, selection is real to car rear such as in reversing process
Scape carries out emphasis early warning, or judges that the next step of automobile acts according to modulating signal is turned to, and carries out early warning in advance.
In the present embodiment, for the ease of tracing and improving test effect, in addition to recording step：
Main control module 1 starts to preserve test log before test initialization；
Main control module 1 starts to record the video in test process after test initialization.
Final test person can be accurately found to be tested by consulting the video in test log and test process
7 produced problems of system.
Embodiments of the present invention are explained in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned implementation
Mode, can also be on the premise of present inventive concept not be departed from those of ordinary skill in the art's possessed knowledge
Various changes can be made.
Claims (9)
- A kind of 1. vehicle-mounted viewing system outdoor scene simulating test device, it is characterised in that including：Outdoor scene analog module, for gathering and recording the image information of motor vehicle environment, radar signal in actual driving procedure, and it is defeated Go out real scene simulated signal；Main control module, for real scene simulated signal described in system forwards to be tested, and obtain the feedback of the test system to be measured Signal, and the feedback signal that current time is obtained and the radar signal are compared, and judge whether feedback signal is correct；Memory module, for preserving the feedback signal and test log of test system to be measured in test process.
- 2. vehicle-mounted viewing system outdoor scene simulating test device according to claim 1, it is characterised in that also include being used to show Show the early warning display module of the feedback signal；The early warning display module includes auditory tone cues module and light prompt mould Block, the early warning display module show different early warning etc. according to vehicle body in real scene simulated signal from the range information of barrier Level.
- 3. vehicle-mounted viewing system outdoor scene simulating test device according to claim 1, it is characterised in that also including vehicle body shape State analog module, the vehicle body state simulation module send vehicle body status signal using CAN protocol to the main control module.
- 4. vehicle-mounted viewing system outdoor scene simulating test device according to claim 1, it is characterised in that also defeated including video Go out module, the real scene simulated signal that main control module described in the Video Output Modules simultaneous display is received.
- 5. a kind of vehicle-mounted viewing system outdoor scene analog detection method, it is characterised in that employ main control module, the main control module is used In sending real scene simulated signal and judging the whether accurate of system feedback signal to be tested, comprise the following steps：S10. the main control module receives one section of real scene simulated vision signal and same with the real scene simulated vision signal road conditions The radar signal of step；S20. the main control module sends real scene simulated signal to the test system to be measured, while it is anti-to obtain the test system The pre-warning signal of feedback；S30. the pre-warning signal and radar signal, the difference of both warning grades of analysis are parsed；S40. the performance of early warning system is judged according to the size of the difference.
- 6. vehicle-mounted viewing system outdoor scene analog detection method according to claim 5, it is characterised in that also including early warning shape State simultaneous display exports step, specifically includes at least one in following sub-step：The real scene simulated signal is exported by display device；Pass through sound or light efficiency display output radar signal.
- 7. vehicle-mounted viewing system outdoor scene analog detection method according to claim 5, it is characterised in that also including vehicle body shape State simulation steps：The main control module receives the outside CAN signal on vehicle body state；The CAN signal is transmitted to the test system to be measured.
- 8. vehicle-mounted viewing system outdoor scene analog detection method according to claim 5, it is characterised in that also include record step Suddenly：The main control module starts to preserve test log before test initialization；The main control module starts to record the video in test process after test initialization.
- 9. vehicle-mounted viewing system outdoor scene analog detection method according to claim 5, it is characterised in that the warning grade Divided according to the distance between vehicle body in real scene simulated and barrier, urgency and the distance of warning grade are in inverse correlation.
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| CN115861743A (en) * | 2023-02-20 | 2023-03-28 | 上海励驰半导体有限公司 | Vehicle-mounted rack-based face recognition device testing method and system and vehicle machine |
| CN115861743B (en) * | 2023-02-20 | 2023-06-02 | 上海励驰半导体有限公司 | Face recognition device testing method and system based on vehicle-mounted bench and vehicle machine |
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Application publication date: 20171219 |