CN108363377A - A kind of data acquisition device and method applied to Driving Test system - Google Patents
A kind of data acquisition device and method applied to Driving Test system Download PDFInfo
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- CN108363377A CN108363377A CN201711495822.1A CN201711495822A CN108363377A CN 108363377 A CN108363377 A CN 108363377A CN 201711495822 A CN201711495822 A CN 201711495822A CN 108363377 A CN108363377 A CN 108363377A
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- driving test
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a kind of data acquisition devices applied to Driving Test system, including control unit, positioning unit, number leaflet member, OBD collecting units, IO collecting units and power supply unit；The positioning unit is used to the location information of the Driving Test vehicle got being transmitted to control unit；The OBD collecting units obtain the first vehicle body signal of Driving Test vehicle by OBD wiring；The IO collecting units are used to acquire the second vehicle body signal of Driving Test vehicle；Described control unit, which is used to be transmitted to Driving Test by several leaflet members according to the location information, the first vehicle body signal and the second vehicle body signal that receive, judges system.The present invention also provides a kind of OBD collecting methods.The data acquisition device applied to Driving Test system of the present invention Auto-matching vehicle and can be acquired the vehicle body data of vehicle by OBD collecting units and IO collecting units.
Description
Technical field
The present invention relates to a kind of Driving Test technical field more particularly to a kind of data acquisition device applied to Driving Test system and
Method.
Background technology
The features such as currently, high-precision Driving Test driving training system has volume big mostly, subsystem is more, and wiring is more, and installation is difficult.Body
The larger structural housing of the long-pending volume for detaching and using mainly due to positioning host or industrial control host greatly causes.Subsystem is mostly main
It is more to be to provide each functional unit, and each subfunction is there are one individual subsystem responsible, such as vehicle body signal acquisition, fixed
Position signal acquisition and various control units etc..Wiring refers mainly to the acquisition of vehicle body sensor signal more, and traditional approach is taken directly
It connects from vehicle body signal lead and obtaining and takes, so since to directly result in wiring quantity more for number of signals, and due to difference more
The wiring position of signal is variant to be also needed to add extended line etc..Installation difficulty is big, and being based primarily upon the above several points leads to installation and debugging
Efficiency can be very low, and also just high to field conduct personnel requirement due to these features, especially signal wiring is led if any not good general
It causes large batch of erroneous judgement or fails to judge.For examination system, it is a rigid requirement accurately to judge, and system is accurately judged must
Various signals must be accurately obtained based on bottom, it is clear that many drawbacks of traditional approach are not meet the demand for development of industry.
Invention content
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of applied to Driving Test system
Data acquisition device can solve the problems, such as that data acquire.
The second object of the present invention is OBD collecting methods, can solve the problems, such as that data acquire.
An object of the present invention adopts the following technical scheme that realization：
A kind of data acquisition device applied to Driving Test system, including control unit, positioning unit, number leaflet member, OBD are adopted
Collect unit, IO collecting units and power supply unit；The positioning unit, number leaflet member, OBD collecting units, IO collecting units and electricity
Source unit is electrically connected with control unit；
The positioning unit is used to the location information of the Driving Test vehicle got being transmitted to control unit；
The OBD collecting units obtain the first vehicle body signal of Driving Test vehicle by OBD wiring, and first vehicle body is believed
Number it is transmitted to control unit；The IO collecting units are used to acquire the second vehicle body signal of Driving Test vehicle, and by second vehicle body
Signal transmission is to control unit；
Described control unit is used to pass through number according to the location information, the first vehicle body signal and the second vehicle body signal that receive
Leaflet member is transmitted to Driving Test and judges system.
Further, further include interface unit, the interface unit is electrically connected with control unit.
Further, described control unit uses STM32F103RE as main control chip.
Further, the positioning unit uses the Big Dipper/gps double star double frequency high accuracy positioning boards.
Further, described control unit is used to carry out the side that analyzing processing carrys out identification satellite to the location information received
Position；And combine roll angle and pitch angle to obtain accurately position, course and posture.
Further, the OBD collecting units include 1 road K buses and 2 tunnel CAN bus.
Further, which supports ISO9141-2, ISO14230, SO15765 standard agreement.
The second object of the present invention adopts the following technical scheme that realization：
A kind of OBD collecting methods are applied to the data acquisition dress as described in any one of one of the object of the invention
It sets comprising following steps：
Activate step：To the K buses in OBD collecting units into line activating；
Receive message step：The message information of Driving Test vehicle is obtained by OBD collecting units；
Vehicle matching step：Identify the characteristic point in message information to carry out vehicle matching；
Data transmission step：The vehicle body signal got is transmitted to Driving Test by several leaflet members and judges system.
Further, in activating step, the K buses activation is level activation or the activation of the addresses 5Hz.
Further, the data transmission step is specially：It is passed by number after being filtered to the vehicle body signal got
Unit is transmitted to Driving Test and judges system.
Compared with prior art, the beneficial effects of the present invention are：
The data acquisition device applied to Driving Test system of the present invention Auto-matching vehicle and can be acquired by OBD
Unit and IO collecting units are acquired the vehicle body data of vehicle.
Description of the drawings
Fig. 1 is the structure chart of the data acquisition device applied to Driving Test system of embodiment one；
Fig. 2 is the schematic block circuit diagram of the data acquisition device applied to Driving Test system of embodiment one；
Fig. 3 is the test design sketch of the data acquisition device applied to Driving Test system of embodiment one；
Fig. 4 is the satellite reception quality diagram of the device of embodiment one；
Fig. 5 is the flow chart of the OBD collecting methods of embodiment two.
Reference numeral：1, main machine structure part.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Embodiment one：
The technical solution of the present embodiment has main machine structure part 1, host circuit board, three parts of outside appurtenances.Host circuit
Plate is mounted in structural housing, as shown in Figure 1, it is the diagram of host structural member 1, is installed baffle and is locked screw, pass through
Interface connects accessory, the main specific bit of accessory, directional aerial, data radio station antenna etc..
As shown in Fig. 2, a kind of data acquisition device applied to Driving Test system is present embodiments provided, including control is single
Member, positioning unit, number leaflet member, OBD collecting units, IO collecting units, interface unit and power supply unit；The positioning unit,
Interface unit, number leaflet member, OBD collecting units, IO collecting units and power supply unit are electrically connected with control unit；OBD is
The abbreviation of English On-Board Diagnostic, translator of Chinese are " onboard diagnostic system ", and IO is English input and output
Abbreviation, be input and output collecting unit；
The positioning unit is used to the location information of the Driving Test vehicle got being transmitted to control unit；The positioning is single
Member uses the Big Dipper/gps double star double frequency high accuracy positioning boards, possesses 120 dynamic channel tracking, optimizes signal capture, lead to
It crosses advanced algorithm and the orientation that analyzing processing carrys out identification satellite is carried out to the satellite-signal received；In addition the roll of control unit
Angle, pitch angle algorithm, obtain accurately position, course and posture state.
The OBD collecting units obtain the first vehicle body signal of Driving Test vehicle by OBD wiring, and first vehicle body is believed
Number it is transmitted to control unit；The OBD collecting units include 1 road K buses and 2 road CAN buses.The IO collecting units are used for
The second vehicle body signal of Driving Test vehicle is acquired, and by the second vehicle body signal transmission to control unit；
Described control unit is used to pass through number according to the location information, the first vehicle body signal and the second vehicle body signal that receive
Leaflet member is transmitted to Driving Test and judges system.Described control unit is using STM32F103RE as main control chip.The main control chip has
With abundant resource, especially serial port resource, to serial ports and CAN mouthfuls of requirement in scheme, in addition CAN mouthfuls of resources just meet
Its RAM and flash can also meet follow-up function upgrading.Described control unit is for analyzing the location information received
Processing comes the orientation of identification satellite；And combine roll angle and pitch angle to obtain accurately position, course and posture.The device branch
Hold ISO9141- 2, ISO14230, SO15765 standard agreement.
Power supply unit has 3 road power supply outputs, provides driving power for the work of follow-up each unit, and also realize suspend mode of stopping working
Function, 3 road power supplys are controllable electric power, other power consuming units are cut off when facilitating suspend mode.
Most characteristic, which is exactly some host, in invention to obtain vehicle body signal by OBDII interfaces, reduce wiring. OOBD
1 road K lines of collecting unit, 2 tunnel CAN bus acquisitions, the OBD-II electrical connections of covering mainstream Driving Test vehicle in hardware connection；It is main
Machine supports ISO9141-2, ISO14230, SO15765 standard agreement and the proprietary protocol of part vehicle
The device of the present embodiment be it is a designed specifically for Driving Test driving training vehicle rule grade collection high accuracy positioning and
The host that vehicle body signal acquisition is integrated.The host is positioned using high-precision RTK modes, and positioning accuracy can reach 1cm+1ppm,
Course precision can reach can≤0.4 °/L (L is baseline length, the well unobstructed environment of satellite-signal).In addition, Driving Test drives training
Integrated products miniaturization is a main trend, and host, which possesses in traditional product, to be positioned, orients, determine the basic function of appearance, and is merged
IO modes, which are acquired, is acquired vehicle body signal with OBD two ways, wherein OBD acquisition can support ISO9141-2,
The proprietary protocol of ISO14230, SO15765 standard agreement and part vehicle, can Auto-matching vehicle.
Device program control logic is as follows, and the system after being initialized to each section subsystem that powers on will enter normal work
Make state.Location information is got from positioning unit first and merged acceleration and gyro calculating, to extract out position, boat
To information such as, postures.
I/O signal acquisition is supplement to OBD signal acquisitions, and the OBD signals that do not supported in certain vehicles are needed by connecing
The mode of line is handled, and the acquisition of I/O signal also needs the requirement judged by Driving Test and is filtered accordingly to signal.Association
Processing unit is adjusted mainly to carry out the confidence of above three part to be aggregated to form unified message and be output to corresponding equipment, and
The various state parameters of more new procedures operation.
As shown in Figure 3 and Figure 4, by prolonged a large amount of test, the design function of host has been realized, positioning accuracy and
OBD acquires compound Driving Test and judges requirement, and Fig. 3 is test design sketch, and wherein roll angle, pitch angle convergence and positioning accuracy is equal
Show outstanding, the accurate Rapid matching vehicle of OBD signal acquisition energy and stable acquisition signal.
Embodiment two：
As shown in figure 5, present embodiments providing a kind of OBD collecting methods comprising following steps：
Step S1：To the K buses in OBD collecting units into line activating；The K buses activation is level activation or 5Hz
It activates address.The activation is mainly then inserted into corresponding program according to existing agreement, then swashs into line activating to K buses
Data could be obtained after work；
Step S2：The message information of Driving Test vehicle is obtained by OBD collecting units；It then can be to Driving Test after the activation of K lines
The information of vehicle is obtained；
Step S3：Identify the characteristic point in message information to carry out vehicle matching；Due to each vehicle agreement there are
Difference, so the format of its message data also can there are different places, so need to identify that the vehicle is that vehicle, then
More easily data could be understood；For example, when the message information got, there are oneself for data itself
Feature, by identifying the characteristic point in these data characteristicses, then come complete vehicle matching, when match complete when, then
Directly message data can be read out；
Step S4：Driving Test is transmitted to by several leaflet members judge system after being filtered to the vehicle body signal got.OBD
Collecting unit obtains bus message by CAN bus or K buses.And respective sensor information is extracted according to agreement, wherein difficult
Point is the activation of K buses, is divided into level activation and the activation of the addresses 5Hz.It is commented to ensure that data that OBD is got can meet Driving Test
Sentence the requirement to signal, the signal extracted from message also needs to be filtered, for example turns to modulating signal, needs to tie up signal
1s or more, for another example audible warning are held, need to ensure in real time and finiteness needs to carry out priority processing to the signal.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of data acquisition device applied to Driving Test system, which is characterized in that passed including control unit, positioning unit, number
Unit, OBD collecting units, IO collecting units and power supply unit；The positioning unit, number leaflet member, OBD collecting units, IO are adopted
Collect unit and power supply unit to be electrically connected with control unit；
The positioning unit is used to the location information of the Driving Test vehicle got being transmitted to control unit；
The OBD collecting units obtain the first vehicle body signal of Driving Test vehicle by OBD wiring, and the first vehicle body signal is passed
Transport to control unit；The IO collecting units are used to acquire the second vehicle body signal of Driving Test vehicle, and by the second vehicle body signal
It is transmitted to control unit；
Described control unit is used to pass through several leaflets according to the location information, the first vehicle body signal and the second vehicle body signal that receive
Member is transmitted to Driving Test and judges system.
2. being applied to the data acquisition device of Driving Test system as described in claim 1, which is characterized in that further include interface list
Member, the interface unit are electrically connected with control unit.
3. being applied to the data acquisition device of Driving Test system as described in claim 1, which is characterized in that described control unit is adopted
Use STM32F103RE as main control chip.
4. being applied to the data acquisition device of Driving Test system as described in claim 1, which is characterized in that the positioning unit is adopted
With the Big Dipper/gps double star double frequency high accuracy positioning boards.
5. being applied to the data acquisition device of Driving Test system as described in claim 1, which is characterized in that described control unit is used
Come the orientation of identification satellite in the location information progress analyzing processing to receiving；And combine roll angle and pitch angle to obtain vehicle
Position, course and posture.
6. being applied to the data acquisition device of Driving Test system as described in claim 1, which is characterized in that the OBD acquisitions are single
Member includes 1 road K buses and 2 tunnel CAN bus.
7. being applied to the data acquisition device of Driving Test system as described in claim 1, which is characterized in that the OBD acquisitions are single
Member supports ISO9141-2, ISO14230 and SO15765 standard agreement.
8. a kind of OBD collecting methods, which is characterized in that be applied to data acquisition device as described in claim 1, packet
Include following steps：
Activate step：To the K buses in OBD collecting units into line activating；
Receive message step：The message information of Driving Test vehicle is obtained by OBD collecting units；
Vehicle matching step：Identify the characteristic point in message information to carry out vehicle matching；
Data transmission step：The vehicle body signal got is transmitted to Driving Test by several leaflet members and judges system.
9. OBD collecting methods as claimed in claim 8, which is characterized in that in activating step, the K buses activation
For level activation or the activation of the addresses 5Hz.
10. OBD collecting methods as claimed in claim 8, which is characterized in that the data transmission step is specially：It is right
The vehicle body signal got is transmitted to Driving Test by several leaflet members after being filtered and judges system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711495822.1A CN108363377A (en) | 2017-12-31 | 2017-12-31 | A kind of data acquisition device and method applied to Driving Test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711495822.1A CN108363377A (en) | 2017-12-31 | 2017-12-31 | A kind of data acquisition device and method applied to Driving Test system |
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| CN201711495822.1A Pending CN108363377A (en) | 2017-12-31 | 2017-12-31 | A kind of data acquisition device and method applied to Driving Test system |
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Cited By (1)
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| CN110031875A (en) * | 2019-03-05 | 2019-07-19 | 深圳市中科粤丰科技有限公司 | One kind driving the customized message device of training Driving Test project and method |
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Address after: 510000 room 402, No. 11, caipin Road, Science City, Huangpu District, Guangzhou City, Guangdong Province Applicant after: GUANGZHOU DEVECENT INFORMATION TECHNOLOGY CO., LTD. Address before: 510000 self compiled 305 rooms of 1 301 of 232 Luogang District Road, Guangzhou, Guangdong. Applicant before: GUANGZHOU DEVECENT INFORMATION TECHNOLOGY CO., LTD. |
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Application publication date: 20180803 |