CN202915914U - Road grade acquisition device - Google Patents
Road grade acquisition device Download PDFInfo
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- CN202915914U CN202915914U CN 201220529387 CN201220529387U CN202915914U CN 202915914 U CN202915914 U CN 202915914U CN 201220529387 CN201220529387 CN 201220529387 CN 201220529387 U CN201220529387 U CN 201220529387U CN 202915914 U CN202915914 U CN 202915914U
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Abstract
The utility model discloses a road grade acquisition device which comprises a tilt sensor, an A/D converter, a microprocessor, a CAN (Controller Area Network) controller, a CAN transceiver, wherein the tilt sensor is connected with the microprocessor through the A/D converter; and the CAN transceiver is connected with a singlechip through the CAN controller. Compared with a traditional road grade measuring device in an auxiliary vehicle driving system, which is very high in manufacturing cost, the acquisition device which adopts the tilt sensor to measure the road grade has the advantages of low cost and good stability. The acquisition device adopts CAN bus data communications which has gained rapid development in car industry in recent years and has the characteristics of quick transmission speed, multiple in-net nodes, multi-point broadcasting type transmitting/receiving, strong anti jamming, and simple routing.
Description
Technical field
The utility model belongs to the road safety field, is specifically related to a kind of road grade harvester.
Background technology
The gradient of road is the important parameter that affects the vehicle safety operation, vehicle driving up speed was affected easily when the gradient was excessive, car speed then can rise during descending, especially for heavy vehicle, brake fade occurs easily and cause major traffic accidents in continuous descending process.Can provide good basis for analyzing the vehicle operating security to road grade collection, provide the control foundation for in-vehicle electronic system (such as gradient EBA, gradient starting anti-running system etc.) simultaneously.
Traditional road grade measuring method adopts the instrument such as total powerstation to measure more, and the result that this method measures is accurate, but measuring process is all by manually finishing, and speed is slow, need expend many times for long test apart from road.Therefore, this method is not suitable for the measurement of built road.Along with the development of electronic technology, be used widely based on the data acquisition system (DAS) of microprocessor, become a reality based on sensor and the microprocessor long-time Quick Measurement to road grade.
Therefore design stable, fast, a flexibly and long-time road grade measuring system of Quick Measurement, have necessity and actuality.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is, a kind of fast and accurately road grade harvester is provided.
In order to realize above-mentioned task, the utility model adopts following technical scheme to be achieved:
A kind of road grade harvester comprises obliquity sensor, A/D converter, microprocessor, CAN controller and CAN transceiver, and obliquity sensor links to each other with microprocessor by A/D converter, and the CAN transceiver links to each other with single-chip microcomputer by the CAN controller.
The utility model also has following technical characterictic:
Described obliquity sensor adopts PM-TSI-V1 type obliquity sensor.
Described A/D converter adopts the TLC0832 chip.
Described microprocessor adopts the 89C52 single-chip microcomputer.
Described CAN controller adopts SJAl000 type CAN controller;
Described CAN transceiver adopts 82C250 type CAN transceiver.
Use cost very high comparatively speaking in vehicle DAS (Driver Assistant System) with traditional road grade measurement mechanism, the utility model adopts obliquity sensor road grade to be measured low, the good stability of cost.It is the CAN bus data communication that obtains developing rapidly in automobile industry in recent years that the utility model adopts, have that transmission speed is fast, the net interior nodes is many, the multicast formula sends and receives, anti-interference by force, simple characteristics connect up.
Description of drawings
Fig. 1 is annexation synoptic diagram of the present utility model.
Below in conjunction with drawings and Examples particular content of the present utility model is described in more detail.
Embodiment
Below provide specific embodiment of the utility model, need to prove that the utility model is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
Defer to technique scheme, as described in Figure 1, a kind of road grade harvester, comprise obliquity sensor, A/D converter, microprocessor, CAN controller and CAN transceiver, obliquity sensor links to each other with microprocessor by A/D converter, and the CAN transceiver links to each other with single-chip microcomputer by the CAN controller.
Described obliquity sensor adopts PM-TSI-V1 type obliquity sensor.The carrier that uses is the vehicle of rapid movement, various electromagnetic interference (EMI) are strong under the vehicle environment, and vibration is frequent, and selected obliquity sensor need have good anti-interference and freedom from vibration, and its measuring accuracy and response speed satisfy the demand that road grade is measured simultaneously.For above-mentioned requirements, select PM-TSI-V1 type obliquity sensor.At vehicle PM-TSI-V1 type obliquity sensor is installed, the sensitive axes direction of sensor relies on bolt to realize being rigidly connected towards the headstock direction between sensor and the vehicle body.Use shielded conductor that sensor is powered, and the input pin of connecting sensor signal output pin and A/D converter.
Described A/D converter adopts the TLC0832 chip, and the effect of A/D converter is the magnitude of voltage that obliquity sensor is exported to be converted to digital signal calculate for microprocessor, and this chip conversion accuracy is 8, and slewing rate is fast.Using the minimum resolution of TLC0832 conversion inclination data is 0.234, and the road grade resolution that causes thus is 0.4%, satisfies the demand that road grade is measured.
Described microprocessor adopts the 89C52 single-chip microcomputer, and the 89C52 single-chip microcomputer adopts 40 pin package forms, and inside has 4 I/O mouths, carries timer, communication port.
Described CAN controller adopts SJAl000 type CAN controller, the ID address that sets according to transfer rate and the initialization of 500kb/s, according to the CAN2.0A agreement to the inclination data processing that packages.
Described CAN transceiver adopts 82C250 type CAN transceiver, opens 82C250 type CAN transceiver after the grouping bag is finished, and sends data to the CAN physical network, finishes once gathering.
The utility model relies on the TLC0832 high-speed a/d converter that original signal is carried out analog to digital conversion,, adopts SJAlOOO and 82C250 to form the CAN data transmitting node and sends the road inclination angle value that collects to the external world as main control chip with the 89C52 single-chip microcomputer.The utility model adopts obliquity sensor PM-TSI-V1 type obliquity sensor that road grade is measured, A/D converter adopts the TLC0832 chip, the magnitude of voltage that obliquity sensor can be exported is converted to digital signal and calculates for microprocessor 89C52 single-chip microcomputer, single-chip microcomputer carries out the actual value that digital-to-analog conversion obtains the inclination angle with the angle signal that receives, and calculates to use behind the angle value CAN bus chip that the inclination angle value is sent to extraneous node; Wherein utilize the CAN controller that the angle-data that needs send is packaged according to the CAN agreement, utilize the CAN receiver to receive the packet of CAN controller, send data to the CAN physical network simultaneously.Single-chip microcomputer is finished to be needed the inclination angle value is sent to the external world after calculate at the inclination angle, to satisfy other system to the acquisition function of inclination angle value.Data transmission under the vehicle environment is interfered easily, and therefore selected data receiver formula need have good anti-interference and data interaction function.
Claims (6)
1. road grade harvester, it is characterized in that, comprise obliquity sensor, A/D converter, microprocessor, CAN controller and CAN transceiver, obliquity sensor links to each other with microprocessor by A/D converter, and the CAN transceiver links to each other with single-chip microcomputer by the CAN controller.
2. road grade harvester according to claim 1 is characterized in that, described obliquity sensor adopts PM-TSI-V1 type obliquity sensor.
3. road grade harvester according to claim 1 is characterized in that, described A/D converter adopts the TLC0832 chip.
4. road grade harvester according to claim 1 is characterized in that, described microprocessor adopts the 89C52 single-chip microcomputer.
5. road grade harvester according to claim 1 is characterized in that, described CAN controller adopts SJAl000 type CAN controller.
6. road grade harvester according to claim 1 is characterized in that, described CAN transceiver adopts 82C250 type CAN transceiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220529387 CN202915914U (en) | 2012-10-15 | 2012-10-15 | Road grade acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220529387 CN202915914U (en) | 2012-10-15 | 2012-10-15 | Road grade acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202915914U true CN202915914U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220529387 Expired - Fee Related CN202915914U (en) | 2012-10-15 | 2012-10-15 | Road grade acquisition device |
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| CN (1) | CN202915914U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353299A (en) * | 2013-06-20 | 2013-10-16 | 西安交通大学 | High-precision vehicle-mounted road grade detection device and method |
| CN104554276A (en) * | 2013-10-29 | 2015-04-29 | 福特全球技术公司 | Road grade estimation for a trailered vehicle |
| CN105649792A (en) * | 2016-01-08 | 2016-06-08 | 潍柴动力股份有限公司 | Upslope-climbing-assisting torque improving equipment and method for engine of heavy vehicle |
| CN110686643A (en) * | 2019-10-24 | 2020-01-14 | 长安大学 | Automatic measuring device for road transverse and longitudinal slopes and using method thereof |
| CN112557059A (en) * | 2020-12-15 | 2021-03-26 | 潍柴动力股份有限公司 | Gradient acquisition system and method and vehicle |
-
2012
- 2012-10-15 CN CN 201220529387 patent/CN202915914U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353299A (en) * | 2013-06-20 | 2013-10-16 | 西安交通大学 | High-precision vehicle-mounted road grade detection device and method |
| CN103353299B (en) * | 2013-06-20 | 2015-07-08 | 西安交通大学 | High-precision vehicle-mounted road grade detection device and method |
| CN104554276A (en) * | 2013-10-29 | 2015-04-29 | 福特全球技术公司 | Road grade estimation for a trailered vehicle |
| CN104554276B (en) * | 2013-10-29 | 2019-04-19 | 福特全球技术公司 | Road grade estimation method for articulated vehicle |
| CN105649792A (en) * | 2016-01-08 | 2016-06-08 | 潍柴动力股份有限公司 | Upslope-climbing-assisting torque improving equipment and method for engine of heavy vehicle |
| CN105649792B (en) * | 2016-01-08 | 2018-07-03 | 潍柴动力股份有限公司 | A kind of heavy vehicle engine upward slope auxiliary torque lifting means and method for improving |
| CN110686643A (en) * | 2019-10-24 | 2020-01-14 | 长安大学 | Automatic measuring device for road transverse and longitudinal slopes and using method thereof |
| CN112557059A (en) * | 2020-12-15 | 2021-03-26 | 潍柴动力股份有限公司 | Gradient acquisition system and method and vehicle |
| CN112557059B (en) * | 2020-12-15 | 2023-01-06 | 潍柴动力股份有限公司 | Gradient acquisition system and method and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20131015 |