CN103713585A - Vehicle-mounted information acquisition system - Google Patents

Vehicle-mounted information acquisition system Download PDF

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Publication number
CN103713585A
CN103713585A CN201310230057.6A CN201310230057A CN103713585A CN 103713585 A CN103713585 A CN 103713585A CN 201310230057 A CN201310230057 A CN 201310230057A CN 103713585 A CN103713585 A CN 103713585A
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China
Prior art keywords
information
vehicle
subsystem
module
acquisition
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Pending
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CN201310230057.6A
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Chinese (zh)
Inventor
王瑞锋
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Jinhua Jiatu High-Tech Electronic Technology Co Ltd
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Jinhua Jiatu High-Tech Electronic Technology Co Ltd
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Priority to CN201310230057.6A priority Critical patent/CN103713585A/en
Publication of CN103713585A publication Critical patent/CN103713585A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The invention relates to a vehicle-mounted information acquisition system which belongs to the technical field of vehicle manufacturing and vehicle-mounted CAN communication network protocols. The system is characterized in that the system comprises a terminal device which can accurately acquire and process all kinds of signal information of various devices on a vehicle in a complex vehicle-mounted electrical environment; the terminal device comprises an information acquisition and processing subsystem, an information classification and marshalling subsystem and an information format conversion transmission subsystem. The system provided by the invention has the advantages that the system can convert all kinds of state signal information of the vehicle body, a chassis, a power device and the like into standard CAN information; through a CAN bus, the standard CAN information is sent to a terminal device instruction which can receive vehicle scheduling background instructions of a mobile phone, a computer, GPS, a vehicle monitoring system and the like on the vehicle; a vehicle scheduling background can conveniently carry out real-time data statistics and monitoring on all kinds of states of the vehicle; a scientific control instruction can be timely sent out; and safe, economic and efficient operation can be ensured.

Description

On-vehicle information acquisition system
Technical field
The invention belongs to automobile making and vehicle-mounted CAN communication network protocol technical field, be specifically related to a kind of on-vehicle information acquisition system.
Background technology
The management of automobile is maturation and standard day by day, and most vehicle is all provided with car-mounted terminal, for transmitting information of vehicles and receiving vehicle scheduling backstage instructions such as mobile phone, computer, GPS, vehicle monitoring system.But do not equip CAN bus on the automobile moving in a large number, the signal message of automobile is of a great variety simultaneously, content disunity, and quantity of information is huge, and car-mounted terminal cannot directly gather the information on car.
Summary of the invention
The object of the invention is to provide a kind of on-vehicle information acquisition system, it can be by all kinds of status signal information of equipment such as body of a motor car, chassis and power, by the present invention, change into the CAN information of standard, by CAN bus, be sent to can accept as the terminal device of the vehicle scheduling backstage instructions such as mobile phone, computer, GPS, vehicle monitoring system on automobile, be convenient to vehicle scheduling backstage all kinds of states of vehicle are carried out to real-time data statistics and monitoring, send the steering order of science in good time, guarantee operation security, economy and efficient.
Above-mentioned goal of the invention is achieved through the following technical solutions, a kind of on-vehicle information acquisition system, its main points be it comprise can be under complicated onboard electrical environment the terminal device of the various types of signal information of each equipment on acquisition process automobile accurately, terminal device comprises that Information Collecting & Processing subsystem, information classification marshalling subsystem, information format transform transmission subsystem, MCU is single-chip microcomputer;
Described Information Collecting & Processing subsystem comprises information acquisition module, message processing module;
Described information acquisition module, message processing module carry out acquisition process to three class signal messages, and they are respectively pulse signal acquisition, collection of simulant signal and switching value signals collecting; Wherein pulse signal acquisition scope is 0~10KHz, and compatible pulse signal scope is the various waveform signals of 0~10KHz; Analog signals is divided into resistance and two kinds of forms of voltage; Switching value signal can gather effectively high and low effectively;
Terminal device is organized into groups subsystem pretreatment information by information classification, according to system requirements, classifies and organizes into groups;
Described information classification marshalling subsystem comprises information classification module, marshalling module;
Described information classification module, marshalling module, classify by purposes, source, the type of systemic presupposition information, then according to CAN bus application layer protocol, organizes into groups;
Described information format transforms transmission subsystem and comprises information format conversion module, information transmission modular;
Described information format conversion module, information transmission modular, be mainly by CAN controller, by the information of having organized into groups according to CAN bus application layer protocol, according to the link layer form of agreement, sends; The requirement of format compatible CAN2.0B.
Described MCU is single-chip microcomputer, is mainly to message scheduling, distribution, planning, execution, and the abnormality processing to fault, and parsing, execution and the feedback of vehicle scheduling backstage command informations such as mobile phone, computer, GPS, vehicle monitoring system.
Technique scheme is based on analyzing according to the signal kinds on automobile, total following several signal types on automobile:
Switching value signal is mainly driver's the feedback signal of controlling signal and equipment, sensor, such as switch left and right turn modulating signal;
Analog signals, is mainly the measured value of sensor, or voltage signal;
Pulsed quantity signal, is mainly the speed of a motor vehicle or tach signal, and waveform is mainly square wave;
CAN information is mainly some states and the failure message that engine and wheel box send;
The present invention gathers difficulty in order to reduce automobile information, increases information acquisition amount, and for expansion, improving automobile application provides Information Assurance, the present invention to be equipped with CAN bus application layer protocol, and the various information on car is converted into standard format, sends to terminal device.CAN bus application layer protocol is mainly formulated with reference to SAE J1939, namely on the basis of J1939, make and meet the communications protocol that various automobiles are controlled needs, need compatible < < JTT808-2011 road transport vehicle global position system terminal called agreement and data layout > > simultaneously.
The beneficial effect that the present invention brings is that it can be by all kinds of status signal information of equipment such as body of a motor car, chassis and power, by the present invention, change into the CAN information of standard, by CAN bus, be sent to can accept as the terminal device of the vehicle scheduling backstage instructions such as mobile phone, computer, GPS, vehicle monitoring system on automobile, be convenient to vehicle scheduling backstage all kinds of states of vehicle are carried out to real-time data statistics and monitoring, send the steering order of science in good time, guarantee operation security, economy and efficient.
Accompanying drawing explanation
Fig. 1: working-flow block diagram of the present invention
Fig. 2: system architecture block diagram of the present invention.
Embodiment
By Fig. 1-2 represented be example of the present invention, it comprise can be under complicated onboard electrical environment the terminal device of the various types of signal information of each equipment on acquisition process automobile accurately, terminal device comprises that Information Collecting & Processing subsystem, information classification marshalling subsystem, information format transform transmission subsystem, MCU is single-chip microcomputer;
Described Information Collecting & Processing subsystem comprises information acquisition module, message processing module;
Described information acquisition module, message processing module carry out acquisition process to three class signal messages, and they are respectively 2 road pulse signal acquisitions, 2 road collection of simulant signal and 32 way switch amount signals collecting; Wherein pulse signal acquisition scope is 0~10KHz, and compatible pulse signal scope is the various waveform signals of 0~10KHz; Analog signals is divided into resistance and two kinds of forms of voltage; Switching value signal can gather effectively high and low effectively;
Terminal device is organized into groups subsystem pretreatment information by information classification, according to system requirements, classifies and organizes into groups;
Described information classification marshalling subsystem comprises information classification module, marshalling module;
Described information classification module, marshalling module, classify by purposes, source, the type of systemic presupposition information, then according to CAN bus application layer protocol, organizes into groups;
Described information format transforms transmission subsystem and comprises information format conversion module, information transmission modular;
Described information format conversion module, information transmission modular, be mainly by CAN controller, by the information of having organized into groups according to CAN bus application layer protocol, according to the link layer form of agreement, sends; The requirement of format compatible CAN2.0B;
Described MCU is single-chip microcomputer, is mainly to message scheduling, distribution, planning, execution, and the abnormality processing to fault, and parsing, execution and the feedback of vehicle scheduling backstage command informations such as mobile phone, computer, GPS, vehicle monitoring system.
the present embodiment workflow is as follows: itbe connected to the normal electricity of 24V and key electricity, so on-vehicle information acquisition system is also being worked when vehicle does not start, just duty is distinguished to some extent simultaneously.On-vehicle information acquisition system Real-Time Monitoring key electric signal, when key electric signal being detected, on-vehicle information acquisition system transfers normal workflow to; When key electric signal not detected, on-vehicle information acquisition system enters dormancy listen mode, waits for that part wake-up signal wakes on-vehicle information acquisition system enters workflow, and this wake-up signal comprises the part special packet in switching value and CAN bus.
Enter normal workflow, first carry out System self-test, self check is abnormal, carries out fault prompting, notice vehicle scheduling backstage; As the self check of on-vehicle information acquisition system normally enters normal workflow.
Normal workflow is divided into two large divisions.First is collection and the transmission of the various types of signal of each equipment on automobile; Another part is reception and the execution of terminal device instruction.
On automobile, the collection of the various types of signal of each equipment and transmission mainly comprise collection, processing, classification, marshalling, format conversion and the transmission of signal.The reception of terminal device instruction and execution mainly comprise reception, classification, format conversion, classification, execution and the feedback of instruction.This part is system core part.
the present embodiment systemstructure is as follows: a, external power source are converted into 5V by power-converting circuit, is whole on-vehicle information acquisition system power supply, simultaneous real-time monitoring external system power supply situation.
B, CAN controller as information format transform, the key component of sending and receiving, mainly play CAN bus message and carry out sending and receiving according to the form of standard.
C, information storage part be mainly responsible for by the various types of signal of each equipment on automobile, parameter enters storage, and the steering order of terminal device stored.Also can be used as part and upload the use of the buffer memory of information.
D, part of data acquisition are mainly comprised of three parts, are respectively pulse signal acquisition, collection of simulant signal and switching value signals collecting.Wherein pulse signal acquisition scope is 0 ~ 10KHz, compatible various waveforms.Analog signals is divided into resistance and two kinds of forms of voltage.Switching value signal can gather effectively high and low effectively.
E, CAN bus meet SAE J1939 form, compatible ISO11898, and speed is 250Kbp.
F, control core are the processing enter of all signals, instruction.

Claims (1)

1. an on-vehicle information acquisition system, it is characterized in that it comprise can be under complicated onboard electrical environment the terminal device of the various types of signal information of each equipment on acquisition process automobile accurately, terminal device comprises that Information Collecting & Processing subsystem, information classification marshalling subsystem, information format transform transmission subsystem, MCU is single-chip microcomputer;
Described Information Collecting & Processing subsystem comprises information acquisition module, message processing module;
Described information acquisition module, message processing module carry out acquisition process to three class signal messages, and they are respectively pulse signal acquisition, collection of simulant signal and switching value signals collecting; Wherein pulse signal acquisition scope is 0~10KHz, and compatible pulse signal scope is the various waveform signals of 0~10KHz; Analog signals is divided into resistance and two kinds of forms of voltage; Switching value signal can gather effectively high and low effectively;
Terminal device is organized into groups subsystem pretreatment information by information classification, according to system requirements, classifies and organizes into groups;
Described information classification marshalling subsystem comprises information classification module, marshalling module;
Described information classification module, marshalling module, classify by purposes, source, the type of systemic presupposition information, then according to CAN bus application layer protocol, organizes into groups;
Described information format transforms transmission subsystem and comprises information format conversion module, information transmission modular;
Described information format conversion module, information transmission modular, be mainly by CAN controller, by the information of having organized into groups according to CAN bus application layer protocol, according to the link layer form of agreement, sends; The requirement of format compatible CAN2.0B;
Described MCU is single-chip microcomputer, is mainly to message scheduling, distribution, planning, execution, and the abnormality processing to fault, and parsing, execution and the feedback of vehicle scheduling backstage command informations such as mobile phone, computer, GPS, vehicle monitoring system.
CN201310230057.6A 2013-06-09 2013-06-09 Vehicle-mounted information acquisition system Pending CN103713585A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104618479A (en) * 2015-01-29 2015-05-13 深圳一智信息技术有限公司 Method for achieving information transmission of vehicle-mounted cloud service terminal of commercial vehicle in layering communication mode
CN105657029A (en) * 2016-01-28 2016-06-08 北京交通大学 Internet of vehicles application oriented vehicle state information collection and transmission system
CN107005813A (en) * 2014-12-18 2017-08-01 大陆-特韦斯股份有限公司 Conversion of the Car2X message based on trigger signal of various criterion

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200988431Y (en) * 2006-12-27 2007-12-12 浙江吉利汽车研究院有限公司 Digital automobile instrument with CAN assembly interface
CN101201619A (en) * 2007-12-06 2008-06-18 武汉理工大学 General module for bus vehicle mounted network and information integration control system
CN201166919Y (en) * 2007-12-29 2008-12-17 青岛海信网络科技股份有限公司 Intelligent extension plate and vehicle-mounted terminal containing the same
US20090265489A1 (en) * 2008-04-22 2009-10-22 International Truck Intellectual Property Company, Llc Programmable CAN Bus To Analogue Signal Converter
CN202221526U (en) * 2011-08-17 2012-05-16 秦皇岛天业通联重工股份有限公司 Engineering machine vehicle bus extensive module

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200988431Y (en) * 2006-12-27 2007-12-12 浙江吉利汽车研究院有限公司 Digital automobile instrument with CAN assembly interface
CN101201619A (en) * 2007-12-06 2008-06-18 武汉理工大学 General module for bus vehicle mounted network and information integration control system
CN201166919Y (en) * 2007-12-29 2008-12-17 青岛海信网络科技股份有限公司 Intelligent extension plate and vehicle-mounted terminal containing the same
US20090265489A1 (en) * 2008-04-22 2009-10-22 International Truck Intellectual Property Company, Llc Programmable CAN Bus To Analogue Signal Converter
CN202221526U (en) * 2011-08-17 2012-05-16 秦皇岛天业通联重工股份有限公司 Engineering machine vehicle bus extensive module

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107005813A (en) * 2014-12-18 2017-08-01 大陆-特韦斯股份有限公司 Conversion of the Car2X message based on trigger signal of various criterion
CN107005813B (en) * 2014-12-18 2020-09-15 大陆-特韦斯股份有限公司 Conversion of Car2X messages of different standards based on trigger signals
CN104618479A (en) * 2015-01-29 2015-05-13 深圳一智信息技术有限公司 Method for achieving information transmission of vehicle-mounted cloud service terminal of commercial vehicle in layering communication mode
CN104618479B (en) * 2015-01-29 2018-10-09 深圳市布谷鸟科技有限公司 A method of realizing the vehicle-mounted cloud service terminal information transfer of commercial car to be layered communication modes
CN105657029A (en) * 2016-01-28 2016-06-08 北京交通大学 Internet of vehicles application oriented vehicle state information collection and transmission system

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