CN103568928A - Light-control vehicle-mounted network system - Google Patents
Light-control vehicle-mounted network system Download PDFInfo
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- CN103568928A CN103568928A CN201310527621.0A CN201310527621A CN103568928A CN 103568928 A CN103568928 A CN 103568928A CN 201310527621 A CN201310527621 A CN 201310527621A CN 103568928 A CN103568928 A CN 103568928A
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Abstract
A light-control vehicle-mounted network system comprises a microprocessor as well as a serial data communication bus, a power supply module and a switch control system which are connected with the microprocessor. According to the system, a single chip STC12C5A60S2 and an interface unit circuit are selected, and data are sent by using a CAN (controller area network) module through a CAN bus. The light-control vehicle-mounted network system has the advantages of simple system structure and reliable performance.
Description
Technical field
The present invention relates to light and control vehicle netbios, belong to automotive lighting technical field.
Background technology
along with the development of technology, it is more and more that Auto Electronic Controlled System is obtained inside and outside information, and function is more and more stronger, and intelligent degree is more and more higher, and reliability is also more and more higher.Automobile ECU (Electronic Control Unit, electronic control unit) a large amount of uses have improved dynamic property, economy, traveling comfort and the feature of environmental protection of automobile, but the sharply increase inevitable requirement of ECU quantity changes orthodox car mode, to reduce wire harness.And traditional control method can not be realized this object.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide light and control vehicle netbios, solved the increase day by day of automobile ECU and the contradiction between orthodox car mode.
For achieving the above object, the present invention realizes by following technological means:
Light is controlled vehicle netbios, it is characterized in that: comprise microprocessor and the serial data communications busses being connected with microprocessor, power module, on-off control system.
Preferably, described light is controlled vehicle netbios, it is characterized in that: CAN (the Controller Area Network) bus that described serial data communications busses adopts German Robert Bosch company to produce.
Preferably, described light is controlled vehicle netbios, it is characterized in that: described CAN bus comprises CAN controller, high speed photo coupling, CAN transceiver, CAN-H and CAN-L differential lines.
Preferably, described light is controlled vehicle netbios, it is characterized in that: the CAN-H of described CAN bus and CAN-L differential lines be connecting valve control module, left front module, right front module, left back module and right back module respectively.
Preferably, described light is controlled vehicle netbios, it is characterized in that: the bit rate of described CAN bus is 100Kbps.
Preferably, described light is controlled vehicle netbios, it is characterized in that: the 3.3VCAN bus transceiver SN65HVD230. that described CAN transceiver adopts TI company to produce
Preferably, described light is controlled vehicle netbios, it is characterized in that: described microprocessor adopts micro controller system STC12C5A60S2.
Preferably, described light is controlled vehicle netbios, it is characterized in that: described light is controlled vehicle netbios and adopted modularized program design.
Beneficial effect: light is controlled vehicle netbios, comprises microprocessor and the serial data communications busses being connected with microprocessor, power module, on-off control system.This meter is selected micro controller system STC12C5A60S2 and interface unit circuit thereof, utilizes CAN module to send by CAN bus, has advantages of that system architecture is simple, dependable performance.
accompanying drawing explanation:
Fig. 1 is that the design forms structure embodiment schematic diagram.
Fig. 2 is the design CAN car lamp control system structure
the specific embodiment:
Below in conjunction with accompanying drawing, illustrate the design's the specific embodiment, light is controlled vehicle netbios, it is characterized in that: comprise microprocessor and the serial data communications busses being connected with microprocessor, power module, on-off control system.
Preferably, described light is controlled vehicle netbios, it is characterized in that: CAN (the Controller Area Network) bus that described serial data communications busses adopts German Robert Bosch company to produce.
CAN (Controller Area Network) is that German Robert Bosch company is a kind of vehicle-mounted dedicated serial data communication bus of auto-domain exploitation in early 1980s, meet the requirement of SAE (Society ofAutomobile Engineer) to c class high speed In-vehicle networking (≤l Mbps), be applicable to communication and the control of power transmission and chassis electronic system.Therefore, it also meets the requirement of category-A slow network (≤10Kbps) and category-B middling speed network (≤125Kbps).CAN bus is compared with general communication bus, and its data communication has outstanding reliability, real-time and alerting ability.CAN has how main mode of operation, total line use ratio be high, long distance for data, data transmission rate are high, adopt non-destruction arbitration save the bus collision arbitration time, by message identifier filtering realize data receiver, the feature such as mistake is processed and error-detection mechanism is reliable.Therefore, CAN is used as the widespread use in addition of Special vehicle-mounted bus.
Preferably, described light is controlled vehicle netbios, it is characterized in that: described CAN bus comprises CAN controller, high speed photo coupling, CAN transceiver, CAN-H and CAN-L differential lines.
Preferably, described light is controlled vehicle netbios, it is characterized in that: the CAN-H of described CAN bus and CAN-L differential lines be connecting valve control module, left front module, right front module, left back module and right back module respectively.
This system comprises switch control module, left front module, right front module, left back module and right back module, and it is upper that each module is articulated in CAN bus (CAN-H and CAN-L are differential lines), and the bit rate of CAN bus is 100Kbps.Wherein, switch control module is by the monitoring that on off state is changed, to other four module sending controling instructions; Left front module, right front module, left back module and right back module, after receiving the control command that belongs to this module, are controlled respectively the car light action of correspondence position.---the right front module of left back module---the left front module of right back module one---that because CAN is the Event triggered agreement based on priority, according to other difference of driving safety level, in system, the priority of each node is followed successively by switch control module.Wherein, switch control module is system control command sending module, and security requirement is the highest, has limit priority; Left back and right back module relates to braking and waits the car light relevant to driving safety, and its priority is only second to switch control module; Left front module and right front module priority are minimum.
Preferably, described light is controlled vehicle netbios, it is characterized in that: the bit rate of described CAN bus is 100Kbps.
Preferably, described light is controlled vehicle netbios, it is characterized in that: the 3.3VCAN bus transceiver SN65HVD230. that described CAN transceiver adopts TI company to produce
Preferably, described light is controlled vehicle netbios, it is characterized in that: described microprocessor adopts micro controller system STC12C5A60S2.
Preferably, described light is controlled vehicle netbios, it is characterized in that: described light is controlled vehicle netbios and adopted modularized program design.
Adopt the car lamp control system software of modularized program design philosophy design based on CAN herein, press
According to function, be divided into different program modules, each intermodule is relatively independent, to complete specific function.Between module and module, can mutually call, data sharing, to reach the object of recycling code and simplified code.Main functional module has: CAN initialization module, receive interruption service routine module, CAN message sending module, steering indicating light control module etc.
When program starts to carry out, first carry out initialize routine module, with initialization system, the I/O of corresponding car light controls a mouthful outbound course and is set to output, and initialization CAN controller and timer, waits for the receive interruption of CAN message; If there is the receive interruption of CAN message, read the data byte of CAN message and resolve, by power drive chip, completed the switching manipulation of car light.
More than show and described groundwork of the present invention, principal character and advantage.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. light is controlled vehicle netbios, it is characterized in that: comprise microprocessor and the serial data communications busses being connected with microprocessor, power module, on-off control system.
2. light as claimed in claim 1 is controlled vehicle netbios, it is characterized in that: CAN (the Controller Area Network) bus that described serial data communications busses adopts German Robert Bosch company to produce.
3. light as claimed in claim 2 is controlled vehicle netbios, it is characterized in that: described CAN bus comprises CAN controller, high speed photo coupling, CAN transceiver, CAN-H and CAN-L differential lines.
4. light as claimed in claim 3 is controlled vehicle netbios, it is characterized in that: the CAN-H of described CAN bus and CAN-L differential lines be connecting valve control module, left front module, right front module, left back module and right back module respectively.
5. light as claimed in claim 2 is controlled vehicle netbios, it is characterized in that: the bit rate of described CAN bus is 100Kbps.
6. light as claimed in claim 3 is controlled vehicle netbios, it is characterized in that: the 3.3VCAN bus transceiver SN65HVD230 that described CAN transceiver adopts TI company to produce.
7. light as claimed in claim 1 is controlled vehicle netbios, it is characterized in that: described microprocessor adopts micro controller system STC12C5A60S2.
8. the light as described in above-mentioned arbitrary claim is controlled vehicle netbios, it is characterized in that: described light is controlled vehicle netbios and adopted modularized program design.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310527621.0A CN103568928A (en) | 2013-10-31 | 2013-10-31 | Light-control vehicle-mounted network system |
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| CN201310527621.0A CN103568928A (en) | 2013-10-31 | 2013-10-31 | Light-control vehicle-mounted network system |
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| CN103568928A true CN103568928A (en) | 2014-02-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107985226A (en) * | 2017-11-14 | 2018-05-04 | 天津科技大学 | Vehicle electric power carrier wave lighting system and its implementation |
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| CN102343856A (en) * | 2011-07-22 | 2012-02-08 | 重庆华福车船电子设备制造有限公司 | System and method for controlling automotive lighting elements based on CAN (controller area network) data transmission |
| US20120146506A1 (en) * | 2010-12-10 | 2012-06-14 | Denso Corporation | Light quantity control apparatus and storage medium |
| CN102602328A (en) * | 2012-03-22 | 2012-07-25 | 武汉大学 | Intelligent car lamp control system and intelligent car lamp control method on basis of CAN (controller area network) field bus technology |
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- 2013-10-31 CN CN201310527621.0A patent/CN103568928A/en active Pending
Patent Citations (5)
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| CN201044525Y (en) * | 2007-06-07 | 2008-04-02 | 焦作市龙光影视设备有限责任公司 | Digital light distribution control device |
| US20100245066A1 (en) * | 2007-10-23 | 2010-09-30 | Sarioglu Guner R | Automotive Ultrasonic Sensor System with Independent Wire Harness |
| US20120146506A1 (en) * | 2010-12-10 | 2012-06-14 | Denso Corporation | Light quantity control apparatus and storage medium |
| CN102343856A (en) * | 2011-07-22 | 2012-02-08 | 重庆华福车船电子设备制造有限公司 | System and method for controlling automotive lighting elements based on CAN (controller area network) data transmission |
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| CN107985226A (en) * | 2017-11-14 | 2018-05-04 | 天津科技大学 | Vehicle electric power carrier wave lighting system and its implementation |
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Application publication date: 20140212 |