CN203780462U - Rapid automobile posture detection platform - Google Patents
Rapid automobile posture detection platform Download PDFInfo
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- CN203780462U CN203780462U CN201420108017.4U CN201420108017U CN203780462U CN 203780462 U CN203780462 U CN 203780462U CN 201420108017 U CN201420108017 U CN 201420108017U CN 203780462 U CN203780462 U CN 203780462U
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Abstract
The utility model relates to the technical field of automobile safety detection, particularly to a rapid automobile posture detection platform. The platform comprises wheel sensing modules and a central control module, wherein the wheel sensing modulescommunicate with the central control module through a wireless network, so that the problem of wiring of communicationlines on wheels is solved; in addition, the wheel sensing modules adopt high-G single-axis acceleration sensors and low-G double-axis acceleration sensors which are mutually matched for use; the forward acceleration (tangential acceleration) of a common automobile and the lateral acceleration on hubs are smaller than 1 g, so that requirements of the forward acceleration and the lateral acceleration can be met by using the low-G double-axis acceleration sensors; the radial acceleration with the high precision requirement is independently detected by one high-G single-axis acceleration sensor, so that the number of the sensors is reduced, the detection precision is improved, meanwhile, the use cost of the sensors is reduced, and the overall cost of the platform is reduced.
Description
Technical field
The utility model relates to automotive safety detection technique field, particularly a kind of automobile attitude fast detecting platform.
Background technology
Automotive safety detection technique is an emerging technology that is accompanied by recent years the development of automotive technology, it is the fusion of the subjects pioneering technologys such as sensing technology, trouble diagnosing, computer technology, mechanics of communication, mainly to utilize anchor fitting that intelligent transducer is arranged on to automotive wheel, vehicle body position, to carrying out fast detecting with vehicle operational safety technical index, have flexible for installation, use feature simple, with low cost.It can not only improve the technical guarantee ability of automotive safety operation and reduce traffic accident, and to promoting the development of auto-industry and communications and transportation cause to be of great importance.Carrying out automotive safety detection technique and be not only the important means that guarantees vehicle safety travel, is also one of vehicle operational safety detection technique development tendency.
Due to the attitude detection of automobile is not only needed body gesture to detect, but also need to detect the attitude of wheel, and the attitude of vehicle body and wheel has certain correlativity, therefore the attitude detection data unification of vehicle body state and wheel attitude must be processed, thereby the attitude of automobile is made to judgement the most accurately.For this reason, at present generally by arrange with wheel on wheel attitude detection module on the detection data of the data that detect and the vehicle body detection module that is arranged at vehicle body by communication line (as CAN bus etc.), be sent in treater, but because wheel attitude detection module is arranged on motor tire, in automobile traveling process, tire is High-Speed Automatic, so the comparatively complicated difficulty of the wiring of communication line.
In addition, to the attitude detection content of wheel, must comprise that radial acceleration detects, lateral acceleration detects and tangential acceleration detects, to this, general a plurality of single-axis sensors or the three-axis sensor of adopting realized at present in the industry, but crossing a single-axis sensors can cause wheel detection modular circuit complicated, and accuracy of detection is not high, adopt that three-axis sensor is can be due to the accuracy requirement that wheel radial acceleration detects high has to select high-precision three-axis sensor, and high-precision three-axis sensor is with high costs, cause automobile attitude fast detecting platform with high costs.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and provides a kind of wiring simple, the automobile attitude fast detecting platform that accuracy of detection is high and cost is low.
The purpose of this utility model is achieved through the following technical solutions:
A kind of automobile attitude fast detecting platform is provided, comprise wheel sensing module and Central Control Module (CCM), described wheel sensing module comprises wheel attitude detection module, first signal conditioning module, microprocessor and the first wireless communication module, described wheel attitude detection module Real-time Obtaining automotive wheel attitude information is also sent to microprocessor by wheel attitude information after the conditioning of first signal conditioning module, and described microprocessor is communicated by letter with Central Control Module (CCM) through the first wireless communication module, described Central Control Module (CCM) comprises body gesture detection module, secondary signal conditioning module, master controller and the second wireless communication module, described body gesture detection module Real-time Obtaining body gesture information is also sent to primary controller by body gesture information after the conditioning of secondary signal conditioning module, described master controller is communicated by letter with wheel sensing module by the second wireless communication module, described wheel attitude detection module comprises high G single-axis acceleration sensors and low G double-axel acceleration sensor, the high G single-axis acceleration sensors of described single shaft detects the radial acceleration of automotive wheel in real time, described low G double-axel acceleration sensor detects lateral acceleration and the tangential acceleration of automotive wheel in real time.
Wherein, described high G single-axis acceleration sensors is ADXL193 type sensor, and described low G double-axel acceleration sensor is ADXL311 type sensor.
Wherein, described the first wireless communication module and the second wireless communication module are all Zigbee wireless communication modules.
Wherein, described wheel sensing module also includes temperature sensor, the temperature signal of tire this temperature signal is sent to microprocessor described in described temperature sensor Real-time Obtaining.
Wherein, described Central Control Module (CCM) also comprises CAN bus interface, human-computer interaction module and memory device, and described CAN bus interface, human-computer interaction module and memory device are connected with master controller respectively.
Wherein, described vehicle body state detection module comprises four 3-axis acceleration sensors, one of them 3-axis acceleration sensor is arranged at the center of gravity place of vehicle body, other three 3-axis acceleration sensors equate with the centroidal distance of vehicle body, and these three 3-axis acceleration sensors are mutually vertical with the line of the center of gravity of vehicle body.
Wherein, described 3-axis acceleration sensor is MMA7360 type acceleration pick-up.
Wherein, described wheel attitude detection module is arranged at the rim surface of wheel hub.
Wherein, described master controller comprises F2812 type digital processing chip.
The beneficial effects of the utility model: the utility model provides a kind of automobile attitude fast detecting platform, this platform is divided into wheel sensing module and Central Control Module (CCM), detect the attitude of wheel and wheel attitude information be sent to Central Control Module (CCM) by the first wireless communication module at the setting of wheel sensing module and each wheel place, Central Control Module (CCM) is by control signal, the information exchanges such as feedback signal are crossed the second wireless communication module and are sent wheel sensing module to, thereby avoided laying a difficult problem for communication line on wheel, in addition, the utility model adopts high G single-axis acceleration sensors and low G double-axel acceleration sensor coupling to use, because lateral acceleration on the forward acceleration (being tangential acceleration) of general-utility car and wheel hub is less than 1g, therefore adopt low G double-axel acceleration sensor can meet the two requirement, for the high radial acceleration of accuracy requirement, adopt a high G single-axis acceleration sensors to detect separately, this reduced number of sensors, improved accuracy of detection, reduced the use cost of sensor simultaneously, reduce the holistic cost of platform.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the structured flowchart of a kind of automobile attitude of the utility model fast detecting platform.
Fig. 2 is the schematic layout pattern of a kind of automobile attitude of the utility model fast detecting platform.
Fig. 3 is the configuration schematic diagram of the vehicle body state detection module of a kind of automobile attitude of the utility model fast detecting platform.
In Fig. 1 to Fig. 3, include:
1---wheel sensing module, 11---wheel attitude detection module, 12---first signal conditioning module, 13---microprocessor, 14---the first wireless communication module, 15---temperature sensor, 2---Central Control Module (CCM), 21---body gesture detection module, 211---the first 3-axis acceleration sensor, 22---secondary signal conditioning module, 23---master controller, 24---the second wireless communication module, 25---CAN bus interface, 26---human-computer interaction module, 27---memory device.
The specific embodiment
With the following Examples the utility model is further described.
The specific embodiment of a kind of automobile attitude of the utility model fast detecting platform, as depicted in figs. 1 and 2, comprise: in four wheel sensing module 1(Fig. 1, only show two) and Central Control Module (CCM) 2, described wheel sensing module 1 is arranged at automotive wheel place, described Central Control Module (CCM) 2 is arranged at vehicle body, described wheel sensing module 1 comprises wheel attitude detection module 11, first signal conditioning module 12, microprocessor 13 and the first wireless communication module 14, described wheel attitude detection module 11 Real-time Obtaining automotive wheel attitude informations are also sent to microprocessor 13 by wheel attitude information after 12 conditionings of first signal conditioning module, described microprocessor 13 is communicated by letter with Central Control Module (CCM) 2 through the first wireless communication module 14, described Central Control Module (CCM) 2 comprises body gesture detection module 21, secondary signal conditioning module 22, master controller 23 and the second wireless communication module 24, described body gesture detection module 21 Real-time Obtaining body gesture information are also sent to primary controller by body gesture information after 22 conditionings of secondary signal conditioning module, described master controller 23 is communicated by letter with wheel sensing module 1 by the second wireless communication module 24, described master controller 23 comprises F2812 type digital processing chip, described wheel attitude detection module 11 comprises high G single-axis acceleration sensors and low G double-axel acceleration sensor, the high G single-axis acceleration sensors of described single shaft detects the radial acceleration of automotive wheel in real time, described low G double-axel acceleration sensor detects lateral acceleration and the tangential acceleration of automotive wheel in real time.
Because this platform is divided into wheel sensing module 1 and Central Control Module (CCM) 2, wheel sensing module 1 is arranged at each wheel place and detects the attitude of wheel and wheel attitude information is sent to Central Control Module (CCM) 2 by the first wireless communication module 14, 2 of Central Control Module (CCM)s are by control signal, the information exchanges such as feedback signal are crossed the second wireless communication module 24 and are sent wheel sensing module 1 to, therefore this platform can avoid laying a difficult problem for communication line on wheel, in addition, this platform adopts high G single-axis acceleration sensors and low G double-axel acceleration sensor coupling to use, because lateral acceleration on the forward acceleration (being tangential acceleration) of general-utility car and wheel hub is less than 1g, therefore adopt low G double-axel acceleration sensor can meet the two requirement, for the high radial acceleration of accuracy requirement, adopt a high G single-axis acceleration sensors to detect separately, this reduced number of sensors, improved accuracy of detection, reduced the use cost of sensor simultaneously, reduce the holistic cost of platform.
Concrete, described high G single-axis acceleration sensors is ADXL193 type sensor, described low G double-axel acceleration sensor is ADXL311 type sensor.
Described the first wireless communication module 14 and the second wireless communication module 24 are all Zigbee wireless communication modules.ZigBee is the wireless communication protocol based on IEEE 802.15.4, is a kind of technical scheme between radio mark technology and bluetooth, has low in energy consumption, cost compared with the advantage such as low, time delay is short, network capacity is large, reliability is high, safety is good.In this platform, wheel sensing module 1 and Central Control Module (CCM) 2 distances are short, therefore adopt Zigbee wireless communication module optimally to satisfy the demands.Certainly, those skilled in the art also can select other signalling methodss as the case may be, repeat no more herein.
Described wheel sensing module 1 also includes temperature sensor 15, the temperature signal of tire this temperature signal is sent to microprocessor 13 described in described temperature sensor 15 Real-time Obtainings.Can Real-Time Monitoring tyre temperature by temperature sensor 15, avoid that tyre temperature is too high brings driving dangerous.
Described Central Control Module (CCM) 2 also comprises CAN bus interface 25, human-computer interaction module 26 and memory device 17, and described CAN bus interface 25, human-computer interaction module 26 and memory device 17 are connected with master controller 23 respectively.With this, significantly expand the extensibility of platform.
As shown in Figure 3, described vehicle body state detection module comprises four 3-axis acceleration sensors, these concrete 3-axis acceleration sensors are MMA7360 type acceleration pick-ups, wherein the first 3-axis acceleration sensor 211 is arranged at the center of gravity place of vehicle body, other three 3-axis acceleration sensors equate with the centroidal distance of vehicle body, and these three 3-axis acceleration sensors are mutually vertical with the line of the center of gravity of vehicle body.At present, detection for vehicle body comprises gyro strap-down inertial navigation system and gyro Inertial Measurement Unit measuring system, gyro Inertial Measurement Unit measuring system need to be used six above groups of acceleration sensors parts (being generally six or nine), if adopt six sensors, these conventional six sensors are triangular prism configuration, and (six sensors are disposed on six summits of a virtual triangular prism, industry general tems, do not repeat) herein, this scheme is relatively difficult to install (six sensors need to be installed) significantly, and the present embodiment adopts four 3-axis acceleration sensors, and 3-axis acceleration sensor in these four three-axis sensors is arranged to the center of gravity place of vehicle body, other three 3-axis acceleration sensors equate (the cone configuration of Ji Chengzheng right angle Mitsubishi) with the centroidal distance of vehicle body, this kind of acceleration pick-up allocation plan can solve respectively vehicle body along the linear acceleration of inertial coordinates system by gyro Inertial Measurement Unit navigation principle, cireular frequency, and then by mathematical treatment, solve other attitude parameters (concrete treating process do not repeat) thus can calculate the attitude data of automobile.Significantly, the required number of sensors of this acceleration pick-up allocation plan is few, easier for installation.
Preferably, described wheel attitude detection module 11 is arranged at the rim surface of wheel hub.Not only can utilize the pressure fixing wheel attitude detection module 11 of tire to wheel rim, make wheel attitude detection module 11 be fixed more firmly, and it is more accurate to detect data.
Described master controller 23 comprises F2812 type digital processing chip.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.
Claims (9)
1. an automobile attitude fast detecting platform, it is characterized in that: comprise wheel sensing module and Central Control Module (CCM), described wheel sensing module comprises wheel attitude detection module, first signal conditioning module, microprocessor and the first wireless communication module, described wheel attitude detection module Real-time Obtaining automotive wheel attitude information is also sent to microprocessor by wheel attitude information after the conditioning of first signal conditioning module, and described microprocessor is communicated by letter with Central Control Module (CCM) through the first wireless communication module, described Central Control Module (CCM) comprises body gesture detection module, secondary signal conditioning module, master controller and the second wireless communication module, described body gesture detection module Real-time Obtaining body gesture information is also sent to primary controller by body gesture information after the conditioning of secondary signal conditioning module, described master controller is communicated by letter with wheel sensing module by the second wireless communication module, described wheel attitude detection module comprises high G single-axis acceleration sensors and low G double-axel acceleration sensor, the high G single-axis acceleration sensors of described single shaft detects the radial acceleration of automotive wheel in real time, described low G double-axel acceleration sensor detects lateral acceleration and the tangential acceleration of automotive wheel in real time.
2. a kind of automobile attitude fast detecting platform as claimed in claim 1, is characterized in that: described high G single-axis acceleration sensors is ADXL193 type sensor, and described low G double-axel acceleration sensor is ADXL311 type sensor.
3. a kind of automobile attitude fast detecting platform as claimed in claim 1, is characterized in that: described the first wireless communication module and the second wireless communication module are all Zigbee wireless communication modules.
4. a kind of automobile attitude fast detecting platform as claimed in claim 1, it is characterized in that: described wheel sensing module also includes temperature sensor the temperature signal of tire this temperature signal is sent to microprocessor described in described temperature sensor Real-time Obtaining.
5. a kind of automobile attitude fast detecting platform as claimed in claim 1, it is characterized in that: described Central Control Module (CCM) also comprises CAN bus interface, human-computer interaction module and memory device, described CAN bus interface, human-computer interaction module and memory device are connected with master controller respectively.
6. a kind of automobile attitude fast detecting platform as claimed in claim 1, it is characterized in that: described vehicle body state detection module comprises four 3-axis acceleration sensors, one of them 3-axis acceleration sensor is arranged at the center of gravity place of vehicle body, other three 3-axis acceleration sensors equate with the centroidal distance of vehicle body, and these three 3-axis acceleration sensors are mutually vertical with the line of the center of gravity of vehicle body.
7. a kind of automobile attitude fast detecting platform as claimed in claim 6, is characterized in that: described 3-axis acceleration sensor is MMA7360 type acceleration pick-up.
8. a kind of automobile attitude fast detecting platform as claimed in claim 1, is characterized in that: described wheel attitude detection module is arranged at the rim surface of wheel hub.
9. a kind of automobile attitude fast detecting platform as claimed in claim 1, is characterized in that: described master controller comprises F2812 type digital processing chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108017.4U CN203780462U (en) | 2014-03-11 | 2014-03-11 | Rapid automobile posture detection platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420108017.4U CN203780462U (en) | 2014-03-11 | 2014-03-11 | Rapid automobile posture detection platform |
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| CN203780462U true CN203780462U (en) | 2014-08-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996767A (en) * | 2017-04-10 | 2017-08-01 | 南京农业大学 | A kind of independent navigation tractor steering angle wireless measuring system and method |
| CN112566026A (en) * | 2020-12-14 | 2021-03-26 | 广东工贸职业技术学院 | Wheel rotation signal self-adaptive network time delay measuring method, system and storage medium |
-
2014
- 2014-03-11 CN CN201420108017.4U patent/CN203780462U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996767A (en) * | 2017-04-10 | 2017-08-01 | 南京农业大学 | A kind of independent navigation tractor steering angle wireless measuring system and method |
| CN112566026A (en) * | 2020-12-14 | 2021-03-26 | 广东工贸职业技术学院 | Wheel rotation signal self-adaptive network time delay measuring method, system and storage medium |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20150311 |
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| EXPY | Termination of patent right or utility model |