CN102457533A - Automobile information acquisition and analysis system based on Bluetooth mobile phone transmission - Google Patents

Abstract

The invention discloses an automobile information acquisition and analysis system based on Bluetooth mobile phone transmission and relates to the field of controller area network (CAN) buses or local interconnect network (LIN) buses of automobiles. The automobile information acquisition and analysis system comprises a CAN or LIN bus transceiver, a vehicle-mounted sound terminal, a Bluetooth communication module, a user Bluetooth mobile phone and a parking lot data server, wherein the CAN or LIN bus transceiver is used for exchanging information between the vehicle-mounted sound terminal and a CAN or LIN bus; the Bluetooth communication module is connected with the vehicle-mounted sound terminal and the CAN or LIN bus transceiver, and forms a wireless communication network in the automobile together with the user Bluetooth mobile phone so as to fulfill an aim of exchanging information between the Bluetooth communication module and the automobile through a mobile phone interface; and the vehicle-mounted sound terminal transmits information read from the CAN or LIN bus transceiver to a micro control unit (MCU) of the vehicle-mounted sound terminal, or displays information to be displayed, or informs a driver of information to be prompted by a voice through a sound horn. The automobile information acquisition and analysis system can acquire running data of vehicles, particularly new vehicles, timely and quickly in real time.

Description

Automobile information acquisition analysis system based on the bluetooth cellular phone transmission

Technical field

The present invention relates to automobile CAN-bus or LIN bus field, particularly use the on-vehicle acoustic apparatus of band Bluetooth communication and CAN bus or LIN bus communication.

Background technology

Since the nineties in 20th century, along with integrated circuit and the extensive use of single-chip microcomputer on automobile, the quantity of electronic control unit on the automobile (ECU, Electronic Control Unit) is more and more, and the application of bussing technique on automobile is also just more and more wider.Wherein, Automobile bus relatively more commonly used is the (CAN of controller local area network; Controller Area Network), it is to be to solve a kind of data communication protocol that the exchanges data between the ECU is developed in the Hyundai Motor by German BOSCH company the earliest, according to the ISO related standards; The topological structure of CAN is a bus type, so be also referred to as the CAN bus.LIN bus (LocalInterconnect Network) is the distributed electronic system control that a kind of network of serial communication cheaply is used for realizing automobile, and the target of LIN is for existing automotive networking (for example CAN bus) miscellaneous function to be provided.Therefore the LIN bus is a kind of auxiliary bus network; Use the LIN bus can save cost greatly such as the communication between intelligence sensor and the brake apparatus not needing CAN bus width and multi-functional occasion; Developing instrument and application software interface except that having defined basic agreement and physical layer, have also been defined in the LIN technical specification; The LIN communication is based on SCI (UART) data format and adopts the pattern of single master controller/many slave units only to use the node synchronised clock line of a 12V signal bus and a NO Fixed Time benchmark, and this pattern of serial communication cheaply and corresponding development environment will be reduced cost in research and development application operating system for automaker and supplier by the standardization that LIN association is formulated to standard LIN.

Because new car listing speed is more and more faster; Vehicle driving safety and quality requirement are increasingly high; It is more and more important to obtain vehicle vehicle operation data particularly newly developed in time, fast, in real time, and the data of collection have great significance for timely analysis new car quality or hidden danger of quality.Remote fault diagnosis then is an important means of eliminating the customer complaint complaint rapidly.Therefore medium-long range data acquisition function of the present invention can solve new car listing speed and the quick improved contradiction of quality effectively, and remote fault diagnosis, prevention prompting function can effectively solve the contradiction of vehicle mass and user's complaint.

Summary of the invention

The purpose of this invention is to provide a kind of automobile information acquisition analysis system based on the bluetooth cellular phone transmission, the present invention can obtain vehicle vehicle operation data particularly newly developed in time, fast, in real time.

Automobile information acquisition analysis system based on the bluetooth cellular phone transmission of the present invention, by CAN or LIN bus transceiver, the vehicle audio terminal, bluetooth communication module, user's bluetooth cellular phone and parking lot data server are formed; Wherein:

CAN or LIN bus transceiver are used for vehicle audio terminal and CAN or LIN bus switch information; To send the MCU cell processing at vehicle audio terminal from the information that CAN or LIN bus transceiver read to, and/or the information that will show shows, and will need the information of voice suggestion to point out to the driver through the loudspeaker at vehicle audio terminal; Through sound equipment bluetooth module the CAN that collects or LIN bus network information are sent to simultaneously and show on the bluetooth cellular phone and handle, be sent to the parking lot data server and store, analyze, handle again through wireless Internet;

Bluetooth communication module connects vehicle audio, CAN or LIN bus transceiver, has formed wireless communication networks in the car with user's bluetooth cellular phone, to realize through mobile phone interface and automobile exchange message; Bluetooth communication module is sent to the CAN that collects or LIN bus network information and shows on the bluetooth cellular phone to handle and be sent to the parking lot data server through wireless Internet again and store, analyze, handle, with functions such as the remote data acquisition of realizing online vehicle, remote fault diagnosis, remote monitoring;

The vehicle audio terminal will send the MCU cell processing at vehicle audio terminal from the information that CAN or LIN bus transceiver read to, and the information that maybe will show shows maybe will need the information of voice suggestion to point out to the driver through Music centre loudspeaker.

Automobile information acquisition analysis system based on the bluetooth cellular phone transmission of the present invention; Be that a kind of on-vehicle acoustic apparatus (transferring stereo sets such as broadcast receiver, CD, DVD player like electricity) of band bluetooth communication and CAN bus or LIN bus communication that utilizes is formed communication network system with the mobile phone of band bluetooth, this system can obtain vehicle vehicle operation data particularly newly developed in time, fast, in real time.Car load CAN bus has two network segments, is based on the 500kbps network segment of ISO 11898 standards respectively and based on the 250kbps network segment of SAE J1939 standard, and is interconnected through gateway between them.Bluetooth cellular phone or background information center can be sent instruction through bluetooth cellular phone and accomplished functions such as vehicle data collection, failure diagnosis, remote monitoring to on-vehicle acoustic apparatus through CAN bus or LIN bus.

Description of drawings

Fig. 1 is a workflow diagram of the present invention;

Fig. 2 is a high-level schematic functional block diagram of the present invention.

Embodiment

Below in conjunction with accompanying drawing and with illustrated embodiments the present invention is done detailed explanation.

Consult Fig. 1-2, based on the automobile information acquisition analysis system of bluetooth cellular phone transmission, by CAN or LIN bus transceiver, the vehicle audio terminal, bluetooth communication module, the user's bluetooth cellular phone and the parking lot data server of band special-purpose software are formed; Wherein:

CAN or LIN bus transceiver are used for vehicle audio terminal and CAN or LIN bus switch information; States such as the information that will read from CAN or LIN bus transceiver such as air-conditioner temperature, road speed, Fuel Oil Remaining, engine temperature, mileage, vehicle internal and external temperature and door lock, vehicle window, safety belt, parking brake, trunk, bonnet, car light send the MCU cell processing at vehicle audio terminal to; And/or the information that will show shows, and will need the information of voice suggestion to point out to the driver through the loudspeaker at vehicle audio terminal; Through sound equipment bluetooth module the CAN that collects or LIN bus network information are sent to simultaneously and show on the bluetooth cellular phone and handle, be sent to the parking lot data server and store, analyze, handle again through wireless Internet (like 3G, GPRS, GSM, WIFI, 4G); The driver also can carry out command operation to this module through sound equipment panel button or mobile phone operation.

Bluetooth communication module connects vehicle audio, CAN or LIN bus transceiver, has formed wireless communication networks in the car with user's bluetooth cellular phone, and user mobile phone is installed special-purpose communication process software to realize through mobile phone interface and automobile exchange message; Bluetooth communication module is sent to the CAN that collects or LIN bus network information and shows on the bluetooth cellular phone to handle and be sent to the parking lot data server through wireless Internet (like 3G, GPRS, GSM, WIFI, 4G) again and store, analyze, handle, with functions such as the remote data acquisition of realizing online vehicle, remote fault diagnosis, remote monitoring; The driver also can carry out command operation to this module through sound equipment panel button or mobile phone operation.

The vehicle audio terminal; Play like AM/FM radio reception, MP3/WMA/MP4 digital broadcast, gps satellite navigation, CD, DVD except normal amusement function at the vehicle audio terminal; Also have the vehicle pair to drive function; States such as the information that will read from CAN or LIN bus transceiver such as air-conditioner temperature, road speed, Fuel Oil Remaining, engine temperature, mileage, vehicle internal and external temperature and door lock, vehicle window, safety belt, parking brake, trunk, bonnet, car light send the MCU cell processing at vehicle audio terminal to, and the information that maybe will show shows maybe will need the information of voice suggestion to point out to the driver through Music centre loudspeaker.

Utilize wireless 3G network to send instruction through user mobile phone dedicated operations interface or background data center; Instruction is sent to the MCU of vehicle audio unit through bluetooth communication, and MCU receives that the instruction back starts the state information and the data message of CAN or LIN bus transceiver collection vehicle service data and fault diagnosis code and vehicle-mounted each NE.These information are sent to the wireless blue tooth module and send on user's bluetooth cellular phone and be sent to back-end data service center stores, analysis through wireless 3G network or 2G network (GPRS) again.And based on these data launch a series of function service like: remote data acquisition, remote fault diagnosis, remote vehicle monitoring, be decided to be trackings, maintain prompting, vehicle condition information, vehicle health check-up advice note, remote-control unlocking door, remote control seeks car.In real time, online for vehicle design and production division provide DFMEA, PFMEA data foundation accurately, for purchasing department provide supplier's part quality information or the like produce the respective services of opening based on this data.

Above embodiment is more preferably embodiment a kind of of the present invention, and common variation that those skilled in the art carry out in present technique scheme scope and replacement should be included in protection scope of the present invention.

Claims (1)

1. based on the automobile information acquisition analysis system of bluetooth cellular phone transmission, it is characterized in that, by CAN or LIN bus transceiver, the vehicle audio terminal, bluetooth communication module, user's bluetooth cellular phone and parking lot data server are formed; Wherein:

CAN or LIN bus transceiver are used for vehicle audio terminal and CAN or LIN bus switch information; To send the MCU cell processing at vehicle audio terminal from the information that CAN or LIN bus transceiver read to, and/or the information that will show shows, and will need the information of voice suggestion to point out to the driver through the loudspeaker at vehicle audio terminal; Through sound equipment bluetooth module the CAN that collects or LIN bus network information are sent to simultaneously and show on the bluetooth cellular phone and handle, be sent to the parking lot data server and store, analyze, handle again through wireless Internet;

Bluetooth communication module connects vehicle audio, CAN or LIN bus transceiver, has formed wireless communication networks in the car with user's bluetooth cellular phone, to realize through mobile phone interface and automobile exchange message; Bluetooth communication module is sent to the CAN that collects or LIN bus network information and shows on the bluetooth cellular phone to handle and be sent to the parking lot data server through wireless Internet again and store, analyze, handle, with functions such as the remote data acquisition of realizing online vehicle, remote fault diagnosis, remote monitoring;

The vehicle audio terminal will send the MCU cell processing at vehicle audio terminal from the information that CAN or LIN bus transceiver read to, and the information that maybe will show shows maybe will need the information of voice suggestion to point out to the driver through Music centre loudspeaker.

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