CN107845313A - A kind of driving license test auxiliary exercise system and its application method - Google Patents
A kind of driving license test auxiliary exercise system and its application method Download PDFInfo
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- CN107845313A CN107845313A CN201711124426.8A CN201711124426A CN107845313A CN 107845313 A CN107845313 A CN 107845313A CN 201711124426 A CN201711124426 A CN 201711124426A CN 107845313 A CN107845313 A CN 107845313A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/16—Control of vehicles or other craft
- G09B19/167—Control of land vehicles
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Abstract
The invention discloses a kind of driving license test auxiliary exercise system and its application method.Driving license test auxiliary exercise system provided by the invention includes garage region, running region, first sensor, second sensor, 3rd sensor box control unit.First sensor, second sensor and 3rd sensor are arranged on specific position, and signal is transferred to control unit, and control unit sends voice message according to positional information, inform that student is operated according to correct driving performance information.As a result, the reversing storage of student each time can be easily accomplished, student adds after exercise, you can the gradually skilled skill for grasping reversing storage, and eventually through the examination of the project.
Description
Technical field
The invention belongs to software communication field, and in particular to a kind of driving license test auxiliary exercise system and its application method.
Background technology
Driver's license examination is to obtain the examination of motor vehicle driving license, test subject content and criterion of acceptability whole nation system
One, the examination is divided into knowwhy, place driving efficiency, driving path technical ability and civilization and drives the subject four of relevant knowledge three
Examination.
In the examination of subject two, reversing storage is must to examine project.Storage of moving backward is to be admitted to kart driving license after 2013
The project that must be carried out.Investigate ability of the driver in Venue Operations automobile.Reversing storage is one in examination of driver
Individual examination point.Vehicle is manipulated during exercise correctly pours into garage from both sides.
In addition, existing student during practice, it is necessary to follow coach to be practised, train and taught according to the experience of oneself
Student's exercise is awarded, still, in practice, coach is horizontal uneven, and often has trainee response can not find suitable religion
Practice practice.
The content of the invention
The main object of the present invention is to overcome prior art insufficient, there is provided a kind of to aid in student to carry out reversing storage exercise
Driving license test auxiliary exercise system and its application method.
The invention thought of the present invention：Pass through the coordinated of multiple parts so that student is according to voice message, correct
Position is operated according to prompting, after permanent exercise can forming the habit property drive, and can be voluntarily without coach
The skill of association's reversing storage.Also, the present disclosure additionally applies for coach's auxiliary exercise system, i.e. coach teaches basic skills
After awarding student, student can be practised according to the system.
In order to complete above-mentioned purpose, driving license test auxiliary exercise system provided by the invention includes garage region, traveling area
Domain, first sensor, second sensor, 3rd sensor box control unit；Garage region has the left side storehouse line be arrangeding in parallel
With right side storehouse line, garage region also includes afterbody storehouse line, and afterbody storehouse line both ends are connected with left side storehouse line and right side storehouse line respectively；Car
Base area is connected with running region, and the bearing of trend in garage region is vertical with the bearing of trend of running region, and running region includes
The first sideline and the second sideline be arrangeding in parallel, the second sideline form the first storehouse angle, the second sideline with right side storehouse line intersection location
The second storehouse angle is formed with left side storehouse line intersection location；Running region also includes index line, the bearing of trend of index line and the first side
Line is vertical, and the position that index line is connected with the first sideline forms the first crossover location；First sensor is arranged on the first intersection
Index line whether are sailed out of in position, the headstock portion that first sensor is used to detect vehicle；Second sensor is arranged on the first storehouse angle, the
Two sensors are used for the distance for detecting the first storehouse angle and vehicle；3rd sensor is arranged on the second storehouse angle, and 3rd sensor is used for
Detect the distance of the second storehouse angle and vehicle；Control unit is connected with first sensor, second sensor and 3rd sensor respectively,
And control unit has sound prompt device.
Beneficial effects of the present invention are：First sensor, second sensor and 3rd sensor are arranged on specific position,
And signal is transferred to control unit, control unit sends voice message according to positional information, informs student according to correct
Driving performance information is operated.As a result, the reversing storage of student each time can be easily accomplished, student adds to practise
Afterwards, you can the gradually skilled skill for grasping reversing storage, and eventually through the examination of the project.
One preferable scheme is that driving license test auxiliary exercise system also includes afterbody sensory package, afterbody sensory package
Afterbody storehouse line is arranged on, afterbody sensory package is used to detect distance of the vehicle tail apart from afterbody storehouse line.
Further have the beneficial effect that：In afterbody storehouse, line increases a range sensor, prevent the wheel afterbody of student away from
From afterbody storehouse line excessively closely or too far, to help student that the vehicle body of vehicle is integrally parked in garage.
One preferable scheme is that afterbody sensory package includes the first tail sensor and the second tail sensor, afterbody
The position that storehouse line is connected with left side storehouse line forms left side afterbody storehouse angle, and the position that afterbody storehouse line is connected with right side storehouse line forms right side
Afterbody storehouse angle, the first tail sensor are arranged on left side afterbody storehouse angle, and the second tail sensor is arranged on right side afterbody storehouse angle.
The application method of driving license test auxiliary exercise system provided by the invention, including following step：
S1：Student drives vehicle and travelled in running region, keeps the headstock of vehicle to cross index line；
S2：Control unit sends signal, and it is working condition to keep first sensor, second sensor and 3rd sensor；
S3：Student drives vehicle and is moved rearwards, and keeps moving direction parallel with the first sideline, and instruction is sailed out of to headstock
Line；
S4：First sensor detects that headstock sails out of index line, and first sensor transmits signal to control unit；
S5：Control unit starts sound prompt device work, and sound prompt device sends the first indication signal；
S6：Student drives vehicle according to first indication signal and drives into garage region；
S7：Second sensor detects the distance at the first storehouse of vehicle distances angle, and detection signal is transferred to control list
Member；
S8：3rd sensor detects the distance at the second storehouse of vehicle distances angle, and detection signal is transferred to control list
Member；
S9：Control unit control voice suggestion device sends the second voice configured information or the 3rd voice configured information.
One preferable scheme is that driving license test auxiliary exercise system also includes afterbody sensory package, afterbody sensory package
Afterbody storehouse line is arranged on, afterbody sensory package is used to detect distance of the vehicle tail apart from afterbody storehouse line；
Including following step：
Y1：Vehicle is moved rearwards in garage moves closer to afterbody storehouse line；
Y2：Afterbody sensory package detects that the positional distance of vehicle obtains signal, and signal is transferred to control unit；
Y3：Control unit starts sound prompt device work, and sends the 4th information of voice prompt.
One preferable scheme is that afterbody sensory package includes the first tail sensor and the second tail sensor, afterbody
The position that storehouse line is connected with left side storehouse line forms left side afterbody storehouse angle, and the position that afterbody storehouse line is connected with right side storehouse line forms right side
Afterbody storehouse angle, the first tail sensor are arranged on left side afterbody storehouse angle, and the second tail sensor is arranged on right side afterbody storehouse angle；
Including following step：
D1：Vehicle is moved rearwards in garage moves closer to afterbody storehouse line；
D2：First tail sensor detects that the first position distance of vehicle obtains the first tail signal, and first
Tail signal is transferred to control unit, and the second tail sensor detects that the second place distance of vehicle obtains the second afterbody letter
Number, and the second tail signal is transferred to control unit；
D3：Control unit is compared analysis to the first tail signal and the second tail signal, if the first tail signal and
The ratio of second tail signal then starts sound prompt device work, and send the 4th voice message beyond the value range of setting
Information.
One preferable scheme is first sensor, second sensor, 3rd sensor, the first tail sensor and
Two tail sensors use ultrasonic distance-measuring sensor or infrared distance measuring sensor.
Brief description of the drawings
Schematic diagram when Fig. 1 is the first state of the driving license test auxiliary exercise system first embodiment of the present invention.
Schematic diagram when Fig. 2 is the second state of the driving license test auxiliary exercise system first embodiment of the present invention.
Schematic diagram when Fig. 3 is the third state of the driving license test auxiliary exercise system first embodiment of the present invention.
Schematic diagram when Fig. 4 is four state of the driving license test auxiliary exercise system first embodiment of the present invention.
Wherein, reference is：10th, garage region, 11, left side storehouse line, 12, right side storehouse line, 13, afterbody storehouse line, 20, OK
Sail region, the 21, first sideline, the 22, second sideline, the 23, index line, 31, first sensor, 32, second sensor, the 33, the 3rd
Sensor, 50, vehicle.
Embodiment
First embodiment：
As shown in Figures 1 to 4, the driving license test auxiliary exercise system of the present embodiment includes garage region 10, running region
20th, first sensor 31, second sensor 32,3rd sensor 33 and control unit.
Garage region 10 has the left side storehouse line 11 and right side storehouse line 12 be arrangeding in parallel, and garage region 10 also includes afterbody storehouse
Line 13, the both ends of afterbody storehouse line 13 are connected with left side storehouse line 11 and right side storehouse line 12 respectively.
Garage region 10 is connected with running region 20, the bearing of trend in garage region 10 and the bearing of trend of running region 20
Vertically, running region 20 includes the first sideline 21 and the second sideline 22 be arrangeding in parallel, the second sideline 22 and the phase of right side storehouse line 12
Position is handed over to form the first storehouse angle, the second sideline 22 forms the second storehouse angle with the intersection location of left side storehouse line 11.
Running region 20 also includes index line 23, and the bearing of trend of index line 23 is vertical with the first sideline 21, and index line
23 positions being connected with the first sideline 21 form the first crossover location.
First sensor 31 is arranged on the first crossover location, first sensor 31 be used to detecting vehicle 50 headstock portion whether
Sail out of index line 23.Second sensor 32 is arranged on the first storehouse angle, and second sensor 32 is used to detect the first storehouse angle and vehicle 50
Distance.3rd sensor 33 is arranged on the second storehouse angle, and 3rd sensor 33 is used to detect the second storehouse angle and the distance of vehicle 50.
Control unit is connected with first sensor 31, second sensor 32 and 3rd sensor 33 respectively, and control unit has voice
Suggestion device.
The first sensor 31, second sensor 32 and 3rd sensor 33 of the present embodiment are arranged on specific position, and
And signal is transferred to control unit, control unit sends voice message according to positional information, informs student according to correctly driving
Operation information is sailed to be operated.As a result, the reversing storage of student each time can be easily accomplished, student adds to practise it
Afterwards, you can the gradually skilled skill for grasping reversing storage, and eventually through the examination of the project.
The application method of driving license test auxiliary exercise system provided by the invention, including following step：
S1：Student drives vehicle 50 and travelled in running region 20, keeps the headstock of vehicle 50 to cross index line 23, that is, reaches
To state as shown in Figure 1.
S2：Control unit sends signal, and it is work to keep first sensor 31, second sensor 32 and 3rd sensor 33
State；
S3：Student drives vehicle and is moved rearwards, and keeps moving direction parallel with the first sideline 21, and instruction is sailed out of to headstock
Line 23.
S4：First sensor 31 detects that headstock sails out of index line 23, that is, reaches state as shown in Figure 2, the first sensing
Device 31 transmits signal to control unit.That is, when the headstock of vehicle 50 is moved rearwards and leaves index line 23, the
The signal of one sensor 31 can change, and so as to which this signal intensity is transferred to control unit, control unit is to determine car
Head be moved rearwardly into the position for leaving index line 23.
S5：Control unit starts sound prompt device work, and sound prompt device sends the first indication signal, the first instruction
Information is, for example, to inform that student kills steering wheel to the right, and " killing " here refers to that steering wheel turns to side and can not turned again
Dynamic position；
S6：Student drives vehicle 50 according to first indication signal and drives into garage region；
S7：Second sensor 32 detects the distance at the first storehouse of the distance angle of vehicle 50, and detection signal is transferred to control
Unit processed, such as in state as shown in Figure 3.Here signal can be a numerical value, such as determine the distance first of vehicle 50
The real-time range at storehouse angle, and control unit obtains the distance in real time, and gauged distance scope has been preset in control unit,
If real-time range is too small, i.e., real-time range is less than gauged distance, then illustrates that vehicle 50 is too near to the first storehouse angle, this may
The problem of reversing failure can occur, control unit meeting control voice suggestion device inform that student changes driver behavior, such as to the left
Side half rotation steering wheel so that real-time range is within the scope of gauged distance.
S8：3rd sensor 33 detects the distance at the second storehouse of the distance angle of vehicle 50, and detection signal is transferred to control
Unit processed, such as in state as shown in Figure 3.Here signal can be a numerical value, such as determine the distance second of vehicle 50
The real-time range at storehouse angle, and control unit obtains the distance in real time, and gauged distance scope has been preset in control unit,
If real-time range is too small, i.e., real-time range is less than gauged distance, then illustrates that vehicle 50 is too near to the second storehouse angle, this may
The problem of reversing failure can occur, control unit meeting control voice suggestion device inform that student changes driver behavior.So that
With reference to step S7 operation, it is possible to ensureing the both sides of vehicle 50 can be limited between left side storehouse line and right side storehouse line, without
The first storehouse angle or the second storehouse angle can be touched.
S9：Control unit control voice suggestion device sends the second voice configured information or the 3rd voice configured information, the
Two voice configured informations are, for example, to inform that student revolves the steering wheel that turns around to the left, and the 3rd voice configured information is, for example, to inform
Member continues to travel according to current operating information.
S10：Student just, that is, recovers steering wheel return to normal condition, and vehicle continues to be moved rearwards, and is driven into completely to vehicle
In garage, that is, reach state as shown in Figure 4.
The first sensor, second sensor and 3rd sensor of the present embodiment for example with ultrasonic distance-measuring sensor or
Infrared distance measuring sensor.
Second embodiment：
The present embodiment and the structure of above-mentioned first embodiment are essentially identical, are only discussed in detail below with regard to its difference.This
The driving license test auxiliary exercise system of embodiment also includes afterbody sensory package, and afterbody sensory package is arranged on afterbody storehouse line, tail
Portion's sensory package is used to detect distance of the vehicle tail apart from afterbody storehouse line.In afterbody storehouse, line increases a range sensor, prevents
Only the wheel afterbody of student apart from afterbody storehouse line excessively closely or too far, to help student that the vehicle body of vehicle is integrally parked in garage
In.
Including following step：
Y1：Vehicle is moved rearwards in garage moves closer to afterbody storehouse line.
Y2：Afterbody sensory package detects that the positional distance of vehicle obtains signal, and signal is transferred to control unit.
Here signal can be a numerical value, and signal can determine real-time range of the vehicle 50 apart from afterbody storehouse line, and control list
Member obtains the distance in real time, gauged distance scope has been preset in control unit, if real-time range is excessive or too small, i.e.,
Real-time range is more than or less than gauged distance, then illustrate vehicle 50 too remotely from or too close afterbody storehouse line, this be able to may occur
The problem of reversing failure, control unit meeting control voice suggestion device inform that student changes driver behavior.In this way, student can be
The vehicle body of vehicle 50 smoothly enters in garage region, and without touching afterbody storehouse line.
Y3：Control unit starts sound prompt device work, and sends the 4th information of voice prompt.
3rd embodiment：
The present embodiment and the structure of above-mentioned second embodiment are essentially identical, are only discussed in detail below with regard to its difference.This
The afterbody sensory package of embodiment includes the first tail sensor and the second tail sensor, and afterbody storehouse line is connected with left side storehouse line
Position form left side afterbody storehouse angle, afterbody storehouse angle on the right side of the formation of position that afterbody storehouse line be connected with right side storehouse line, the first afterbody
Sensor is arranged on left side afterbody storehouse angle, and the second tail sensor is arranged on right side afterbody storehouse angle.
The driving license test auxiliary exercise system of the present embodiment includes following step：
D1：Vehicle is moved rearwards in garage moves closer to afterbody storehouse line.
D2：First tail sensor detects that the first position distance of vehicle obtains the first tail signal, and first
Tail signal is transferred to control unit, and the second tail sensor detects that the second place distance of vehicle obtains the second afterbody letter
Number, and the second tail signal is transferred to control unit.First tail signal includes range information, i.e. the first storehouse angle and vehicle
The minimum distance of afterbody.Second afterbody also includes range information, and distance refers to the minimum distance of the second storehouse angle and vehicle tail.
D3：Control unit is compared analysis to the first tail signal and the second tail signal, if the first tail signal and
The ratio of second tail signal then starts sound prompt device work, and send the 4th voice message beyond the value range of setting
Information.
When the vehicle body (vehicle lengthwise direction bearing of trend) of vehicle is not parallel with left side storehouse line, the first tail signal
Just occur with the second tail signal not reciprocity, and vehicle body tilts, the ratio of the first tail signal and the second tail signal
Value is bigger, and when more than certain limit value, the problem of crossing left side storehouse line or right side storehouse line may occurs in vehicle body,
Therefore the timely adjustment direction disk of student is informed by prompting, prevents that body sway is excessively serious.
Fourth embodiment：
The present embodiment and the structure of above-mentioned first embodiment are essentially identical, are only discussed in detail below with regard to its difference.This
The exercise system of embodiment also includes analogue means, positional information, vehicle functions information transfer to mould of the control unit vehicle
Intend device, analogue means automatic mold draws up the predetermined traveling regional graphics of vehicle, and judges whether predetermined running region deviates
Standard area, and predetermined traveling regional graphics are real-time transmitted to control unit, the display unit real-time display of control unit
Predetermined traveling regional graphics.
In other embodiments, first sensor, second sensor, 3rd sensor, the first tail sensor and second
Tail sensor carries out location sensitive or apart from detection using laser sensor.Preferably, the laser letter of first sensor transmitting
Number the second sideline of direction 22 and with indicating line overlap.Laser signal that second sensor is sent is towards the first sideline 21 and to the left
Storehouse line direction tilts, and angle of inclination is 45 ° (angles with vertical direction).The laser signal direction first that 3rd sensor is sent
Sideline 21 and to the right storehouse line direction tilt, and angle of inclination is 45 ° (with vertical direction angle).What the first tail sensor was sent
Line direction in storehouse tilts laser signal towards the first sideline 21 and to the left, and angle of inclination is 45 ° (with vertical direction angle), and second
The laser signal that tail sensor is sent is towards the first sideline 21 and storehouse line direction inclination to the right, angle of inclination are 45 ° (with erecting
Straight angular separation).Furthermore it is also possible to increase protection device, sensor is arranged in protection device, to avoid these parts
It is impaired.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (7)
- A kind of 1. driving license test auxiliary exercise system, it is characterised in that including：Garage region, there is the left side storehouse line and right side storehouse line be arrangeding in parallel, the garage region also includes afterbody storehouse line, described Afterbody storehouse line both ends are connected with left side storehouse line and right side storehouse line respectively；Running region, the garage region are connected with the running region, bearing of trend and the traveling in the garage region The bearing of trend in region is vertical, and the running region includes the first sideline and the second sideline be arrangeding in parallel, second sideline The first storehouse angle is formed with the right side storehouse line intersection location, second sideline forms second with the left side storehouse line intersection location Storehouse angle；The running region also includes index line, and the bearing of trend of the index line is vertical with first sideline, and the finger The position that timberline is connected with first sideline forms the first crossover location；First sensor, is arranged on first crossover location, the first sensor be used to detecting vehicle headstock portion whether Sail out of the index line；Second sensor, is arranged on first storehouse angle, and the second sensor is used to detecting first storehouse angle and vehicle Distance；3rd sensor, is arranged on second storehouse angle, and the 3rd sensor is used to detect second storehouse angle and the car Distance；Control unit, it is connected respectively with the first sensor, second sensor and 3rd sensor, and described control unit has There is sound prompt device.
- 2. driving license test auxiliary exercise system according to claim 1, it is characterised in thatThe driving license test auxiliary exercise system also includes afterbody sensory package, and the afterbody sensory package is arranged on the afterbody Storehouse line, the afterbody sensory package are used to detect distance of the vehicle tail apart from afterbody storehouse line.
- 3. driving license test auxiliary exercise system according to claim 2, it is characterised in thatThe afterbody sensory package includes the first tail sensor and the second tail sensor, afterbody storehouse line and the left side The position of storehouse line connection forms left side afterbody storehouse angle, and the position that afterbody storehouse line is connected with right side storehouse line forms right side tail Portion storehouse angle, first tail sensor are arranged on the left side afterbody storehouse angle, and second tail sensor is arranged on described Right side afterbody storehouse angle.
- 4. the application method of driving license test auxiliary exercise system according to claim 1, it is characterised in that including following Step：S1：Student drives vehicle and travelled in the running region, keeps the headstock of vehicle to cross the index line；S2：Described control unit sends signal, and it is work shape to keep the first sensor, second sensor and 3rd sensor State；S3：Student drives vehicle and is moved rearwards, and keeps moving direction parallel with first sideline, and institute is sailed out of to the headstock State index line；S4：The first sensor detects that the headstock sails out of the index line, the first sensor signal transmit to Described control unit；S5：Described control unit starts the sound prompt device work, and the sound prompt device sends the first indication signal；S6：Student drives vehicle according to first indication signal and drives into garage region；S7：The second sensor detects the distance at the first storehouse angle described in vehicle distances, and detection signal is transferred to institute State control unit；S8：The 3rd sensor detects the distance at the second storehouse angle described in vehicle distances, and detection signal is transferred to institute State control unit；S9：Described control unit controls the sound prompt device to send the second voice configured information or the 3rd voice instruction letter Breath.
- 5. the application method of driving license test auxiliary exercise system according to claim 4, it is characterised in thatThe driving license test auxiliary exercise system also includes afterbody sensory package, and the afterbody sensory package is arranged on the afterbody Storehouse line, the afterbody sensory package are used to detect distance of the vehicle tail apart from afterbody storehouse line；Including following step：Y1：Vehicle is moved rearwards in the garage moves closer to afterbody storehouse line；Y2：The afterbody sensory package detects that the positional distance of the vehicle obtains signal, and signal is transferred to described Control unit；Y3：Described control unit starts the sound prompt device work, and sends the 4th information of voice prompt.
- 6. the application method of driving license test auxiliary exercise system according to claim 5, it is characterised in that the afterbody passes Sense component includes the first tail sensor and the second tail sensor, the position that afterbody storehouse line is connected with left side storehouse line Form left side afterbody storehouse angle, afterbody storehouse angle on the right side of the formation of position that the afterbody storehouse line be connected with right side storehouse line, described the One tail sensor is arranged on the left side afterbody storehouse angle, and second tail sensor is arranged on the right side afterbody storehouse angle；Including following step：D1：Vehicle is moved rearwards in the garage moves closer to afterbody storehouse line；D2：First tail sensor detects that the first position distance of the vehicle obtains the first tail signal, and handle First tail signal is transferred to described control unit, and second tail sensor detects the second place distance of the vehicle The second tail signal is obtained, and the second tail signal is transferred to described control unit；D3：Described control unit is compared analysis to first tail signal and the second tail signal, if the first afterbody is believed Number and the second tail signal ratio beyond the value range of setting, then start sound prompt device work, and send the 4th Information of voice prompt.
- 7. the application method of driving license test auxiliary exercise system according to claim 6, it is characterised in that the first sensing Device, second sensor, 3rd sensor, the first tail sensor and the second tail sensor using ultrasonic distance-measuring sensor or Infrared distance measuring sensor.
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| CN201711124426.8A CN107845313B (en) | 2017-11-14 | 2017-11-14 | Driving license examination auxiliary exercise system and use method thereof |
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| CN201285609Y (en) * | 2008-09-16 | 2009-08-05 | 鲁东大学 | Electronic training apparatus for automobile pile backing and garage shifting |
| CN201336092Y (en) * | 2009-01-23 | 2009-10-28 | 王恩惠 | Grounded stake pole and motor vehicle stake test instrument for motor vehicle stake test |
| US20150054639A1 (en) * | 2006-08-11 | 2015-02-26 | Michael Rosen | Method and apparatus for detecting mobile phone usage |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305719Y (en) * | 1997-06-13 | 1999-01-27 | 程泽林 | Portable field test device for motor vehicle driver |
| US20150054639A1 (en) * | 2006-08-11 | 2015-02-26 | Michael Rosen | Method and apparatus for detecting mobile phone usage |
| CN101059916A (en) * | 2007-05-15 | 2007-10-24 | 合肥工业大学 | Wireless sensor positioning-based auto-post test system and post test method |
| CN201285609Y (en) * | 2008-09-16 | 2009-08-05 | 鲁东大学 | Electronic training apparatus for automobile pile backing and garage shifting |
| CN201336092Y (en) * | 2009-01-23 | 2009-10-28 | 王恩惠 | Grounded stake pole and motor vehicle stake test instrument for motor vehicle stake test |
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| CN107845313B (en) | 2020-11-24 |
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