CN201237804Y - Vehicle remote information collection and transmission apparatus - Google Patents
Vehicle remote information collection and transmission apparatus Download PDFInfo
- Publication number
- CN201237804Y CN201237804Y CNU2008201626629U CN200820162662U CN201237804Y CN 201237804 Y CN201237804 Y CN 201237804Y CN U2008201626629 U CNU2008201626629 U CN U2008201626629U CN 200820162662 U CN200820162662 U CN 200820162662U CN 201237804 Y CN201237804 Y CN 201237804Y
- Authority
- CN
- China
- Prior art keywords
- vehicle
- control module
- module
- data
- mobile communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Selective Calling Equipment (AREA)
Abstract
The utility model relates to a vehicle remote information acquisition and transmission device. A printed circuit board is arranged inside a shell. A data acquisition control module is connected with a main program control module. The main program control module is connected with a mobile communication module. The mobile communication module is connected with a mobile communication antenna. A power supply module is connected with the data acquisition control module, the main program control module and the mobile communication module respectively, which provides working voltage for the modules. The modules and the mobile communication antenna are arranged on the printed circuit board. The data acquisition control module is connected with an electronic control unit inside a vehicle. The utility model adopts the vehicle remote information acquisition and transport device, which is arranged on a vehicle, uses the automobile general diagnosis protocol and communicates data with vehicles through automobile general data diagnostic interfaces. The vehicle remote information acquisition and transmission device solves the problems of the prior art that the signals are unstable, the acquisition speed is low, a small quantity of information is acquired and the functions are simple.
Description
Technical field
The utility model relates to a kind of by linking to each other to come collection vehicle to use data and by the collection and the transmitting device of the vehicle remote information of cordless communication network transmission information with the automotive universal diagnose interface.
Background technology
At present, the method to collecting vehicle information has:
One, be in vehicle, to install to comprise a data collector that is used to receive and handle the GPS module of gps satellite positioning signal, registration of vehicle start-up time when vehicle launch, calculate the mileage number that vehicle travels in 1 second by the gps satellite positioning signal then and add up, judge afterwards whether vehicle stops, if vehicle does not stop as yet, repeating step then, calculate the mileage number that vehicle travels in 1 second and add up by the gps satellite positioning signal, up to the result who judges is that vehicle stops, note the total kilometrage of stand-by time and this vehicle ' of vehicle then, time for vehicle start-up, the total kilometrage that stand-by time and this travel constitutes the related data of vehicle ', at last, data collector is sent to service centre with the related data that this travels.
Two, be that data collector is linked to each other with sensor and vehicle mileometer on the wheel, when vehicle launch, data collector is received the signal from sensor that is installed on wheel or vehicle mileometer, note the time of vehicle launch, through the mileage number that certain hour adds up at interval and registration of vehicle travels, judge according to sensor or mileometer whether vehicle stops then, if vehicle does not stop, repeating step then, if vehicle has stopped, then note the total kilometrage of stand-by time and this vehicle ' of vehicle, time for vehicle start-up, the total kilometrage of stand-by time and this form of degree n n constitutes the related data of this vehicle ', at last, data collector is sent to service centre with the related data that this travels.
More than calculate the total kilometrage of mileage number that vehicle travels in 1 second and the stand-by time that adds up, notes vehicle and this vehicle ' by the gps satellite positioning signal the shortcoming of method be: jitter, picking rate are slow.The method needs gps satellite positioning signal support service, because the accuracy of civilian gps receiver is not enough, exist than mistake calculating on the Vehicle-Miles of Travel, and receive unsettled area in the gps satellite positioning signal and can't use this method that information of vehicles is gathered.
And the Usage data collection device links to each other with sensor and vehicle mileometer on the wheel, signal according to sensor or mileometer, note the time of vehicle launch, add up at interval and the shortcoming of the method for the mileage number that travels of registration of vehicle is through certain hour: the Information Monitoring amount is few, function is simple, these several of Vehicle-Miles of Travel number and time for vehicle start-up, stand-by times are only arranged, and deficiency provides comprehensive service as vehicle.
Summary of the invention
Problem at the prior art existence, the utility model adopts and is installed on the vehicle, use automobile universal diagnostic agreement, carry out the vehicle remote information acquisition and the transmitting device of data communication by automobile conventional data diagnose interface and vehicle, this vehicle remote information acquisition and transmitting device directly carry out data communication by automobile conventional data diagnose interface and vehicle ECU, realization is gathered each parts work state information of automobile, as travel speed, the distance travelled number, engine, wheel box, ABS (brake), the duty of electronic control parts such as machine oil sensor, the data resource that maximum reasonable use directly obtains from vehicle itself improves service and the management to vehicle, has solved prior art and has had jitter, picking rate is slow, the Information Monitoring amount is few, many technical matterss such as function is simple.
The utility model adopts the STR71xF series embedded microcontroller chip of STMicroeletronics company as master program(me) controller, the STR71xF microcontroller is that the automobile that ECU collects uses related data with connected data acquisition module from the vehicle interior electronic control unit, utilize Motorola G2x series GRPS wireless communication module that data are sent to by wireless network in the GPRS network of China Mobile, China Mobile is sent to data in the computing machine of the measurement and control center that has specified address (IP address or domain name) then.
The technical solution of the utility model is as follows: a kind of vehicle remote information acquisition and transmitting device, comprise: casing, printed circuit board, data acquisition and control module, master routine control module, mobile communication module, mobile communication antenna, power module, printed circuit board is installed on casing inside, and data acquisition and control module is connected with the master routine control module; The master routine control module is connected with mobile communication module; Mobile communication module is connected with mobile communication antenna; Power module is connected with data acquisition and control module, master routine control module, mobile communication module respectively, for above-mentioned module provides operating voltage; Above-mentioned module and mobile communication antenna all are installed on the printed circuit board; Data acquisition and control module is connected with the vehicle interior electronic control unit with travel speed, distance travelled number, engine, wheel box, brake, machine oil change information.
In the technical scheme that the utility model is taked, data acquisition and control module comprises:
Vehicle OBD diagnosing protocol converter, adopt 8 8-digit microcontroller chips, be used for conversion vehicle OBD diagnosing protocol between automobile conventional data diagnose interface (OBD interface) and the RS232 interface, make master program(me) controller can use the AT instruction by automobile conventional data diagnose interface (OBD interface) visit vehicle ECU.
The CAN protocol controller is used to send and receive normal data frame, growth data frame and remote frame between vehicle CAN bus and the vehicle OBD diagnosing protocol converter.The CAN protocol controller is to realize that by industrywide standard Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI interface) the CAN protocol controller provides clock signal by external crystal oscillator with being connected of vehicle OBD diagnosing protocol converter.
The CAN transceiver is as the interface between CAN protocol controller and the vehicle CAN bus, for vehicle CAN bus provides differential transmission performance, for the CAN protocol controller provides differential receptivity.
The master routine control module comprises:
Master program(me) controller adopts 16/32 8-digit microcontroller chip, is kernel with 32 RISC CPU of ARM7TDMI of industrial standard, the low-cost 64k byte flash memory of built-in CAN interface.This microcontroller provides in the chip at the same level best flash memory random access time, directly from the speed of flash memory up to 33MHz; Since adopt the burst speed technology, the sequence code zero wait state, and maximum access rate is 50MHz.
Watchdog circuit, for improving the antijamming capability of master program(me) controller, the circuit of using microprocessor monitors chip formation powers on for master program(me) controller work provides, power-off reset, functions such as supply voltage monitoring, house dog.
Mobile communication module comprises:
GRPS wireless communication module, the GSM/GPRS/EDGE module of employing embedded high-speed, this module are supported four frequency 850/900/1800/1900MHz, can realize the high speed seamless link of M2M, built-in ICP/IP protocol line is supported JAVA, quickens and has made things convenient for data transmission procedure.
SIM card adopts the SIM card that inserts China Mobile network, provides the identification authentication voucher for the GPRS wireless communication module inserts the GPRS communication network.
The switching power supply circuit is for the GRPS wireless communication module provides stabilized voltage supply.Utilize this switching power supply chip and few peripheral components to constitute efficient mu balanced circuit, for stable, the reliably working of GRPS wireless communication module provides low ripple operating voltage.
Power module comprises:
Use the AMP connector to insert the 12V automobile power source, the 12V automobile power source is converted to 3.3V voltage is data acquisition and control module, master routine control module, mobile communication module power supply through be made of voltage conversion circuit two low difference voltage regulator chips again.
The vehicle OBD diagnosing protocol converter of described data acquisition and control module adopts 8 8-digit microcontroller LPC9xx family chips, and adopts external crystal oscillator that clock signal is provided.
Described vehicle OBD diagnosing protocol converter carries out data communication through K line and the L line of being made up of resistance and triode behind the on-off circuit with automobile conventional data diagnose interface.
The CAN protocol controller of described data acquisition and control module adopts CAN protocol controller MCP251x family chip, and adopts external crystal oscillator that clock signal is provided.
(Serial Peripheral Interface SPI) is connected with vehicle OBD diagnosing protocol converter the CAN protocol controller of described data acquisition and control module by the industrywide standard Serial Peripheral Interface (SPI).
The CAN transceiver of described data acquisition and control module adopts CAN transceiver TJA105x chip.
The CAN transceiver of described data acquisition and control module is formed H line and the L line that the RC low-pass filter is connected to the vehicle CAN bus circuit through electric capacity over the ground.
The master program(me) controller of described master routine control module adopts 16/32 8-digit microcontroller STR71xF family chip.
The integrated circuit that the watchdog circuit of described master routine control module adopts microprocessor monitors device IMP70x family chip and peripheral circuit to constitute.
The GRPS wireless communication module of described mobile communication module adopts MOTOROLA G2x series module.
The SIM card of described mobile communication module adopts the SIM card that inserts China Mobile network.
The switching power supply circuit of described mobile communication module adopts the LM257x family chip in the switching power supply chip.
Described power module, model by AMP is that the connector of 1-9635xx is connected with the vehicle power supply parts, insert the 12V automobile power source, constituting voltage conversion circuit by two low difference voltage regulator LM1117-5.0x, LM1117-3.3x chip and electric capacity, the 12V automobile power source is converted to 3.3V voltage is data acquisition and control module, master routine control module, mobile communication module power supply.
The workflow of whole vehicle remote information acquisition and transmitting device is: mobile communication antenna is sent to mobile communication module with the image data steering order of receiving, by mobile communication module the master routine control module is delivered in this instruction and exported control and treatment, then steering order is sent into data acquisition and control module, data acquisition and control module communicates by automotive interior diagnosing protocol and vehicle interior electronic control unit (ECU), vehicle motor is started in realization or shutdown signal detects, engine control system detects, the gearbox control system input, the engine oil pressure pickup input, the fuel sensor input, vehicle speed sensor vehicle speed pulse input, the speed probe rotational speed pulse signal detects, acceleration transducer signals detects, braking system control system input, operations such as clutch control input, detected information can comprise: real-time vehicle running speed, the distance travelled number, the engine oil pressure state, the fuel oil user mode, engine operation variation etc.; More than detected information back data acquisition and control module handle, and export by master program(me) controller and image data to be sent to mobile communication module after the control and treatment and mobile communication antenna sends.
Accompanying drawing is described
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a data acquisition and control module circuit structure diagram of the present utility model.
Fig. 3 is a master routine control module circuit structure diagram of the present utility model.
Fig. 4 is a mobile communication module circuit structure diagram of the present utility model.
Fig. 5 is a power module circuitry structural drawing of the present utility model.
Fig. 6 is a functional schematic of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is a structural representation of the present utility model, and it is made of data acquisition and control module 1, master routine control module 2, mobile communication module 3, mobile communication antenna 4, power module 5, printed circuit board 6, casing 7.
Data acquisition and control module 1 is connected with master routine control module 2; Master routine control module 2 is connected with mobile communication module 3; Mobile communication module 3 is connected with mobile communication antenna 4; Power module 5 is connected with data acquisition and control module 1, master routine control module 2, mobile communication module 3 respectively, for above-mentioned module provides operating voltage; Above-mentioned module and mobile communication antenna 4 all are installed on the printed circuit board 6; Data acquisition and control module 1 is connected with the vehicle interior electronic control unit (ECU) with information such as travel speed, distance travelled number, engine, wheel box, ABS (brake), machine oil variations; Printed circuit board 6 is installed on casing 7 inside.
Below each functional module of the utility model is elaborated:
Fig. 2 is a data acquisition and control module circuit structure diagram of the present utility model, and the chip that wherein MCU11 is adopted is LPC936 in the present embodiment, and the chip that MCU12 adopts is MCP2515, and the chip that MCU13 adopts is TJA1050.
MCU11, MCU12, MCU13 link to each other with power module 5, provide operating voltage 3.3V, 5V, 5V by power module 5 respectively for these three MCU.MCU11 provides clock signal by the external crystal oscillator of 7.3728MHz, and MCU12 provides clock signal by the external crystal oscillator of 4MHz.(Serial Peripheral Interface SPI) is connected with MCU11 MCU12 by the industrywide standard Serial Peripheral Interface (SPI).
The effect of MCU11 is a vehicle OBD diagnosing protocol converter.MCU11 is connected with K line, the L line of vehicle OBD interface by the on-off circuit that is made of triode and resistance, is connected with MCU12 by the SPI interface; MCU11 receives the vehicle use data that vehicle ECU transmits, and conversion vehicle OBD diagnosing protocol makes the master routine control module can use the AT instruction to carry out communication with vehicle ECU.
The effect of MCU12 is the CAN protocol controller, and the serial data stream decoding of the vehicle CAN bus that MCU12 will receive from MCU13 sends and receive normal data frame, growth data frame and remote frame between vehicle CAN bus and the MCU11.MCU12 is connected with MCU11 by industrywide standard Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI interface), and its implementation is: the SPI interface pin SCK of MCU12, SI, the SPI interface pin SPICLK of SO and MCU11, MOSI, MISO connects.The INTO of MCU12, CS, RST pin and MCU11 respective pin are connected to two chips look-at-me, chip selection signal and reset signal are provided.Corresponding positions in the MCU12 control register is set or uses the transmission enable pin all can start transmit operation by the SPI interface, and the SPI read/write instruction and the special SPI of the standard of use order all registers of read/write MCU12.The data of MCU11 and order are sent among the MCU12 by the SI pin, and data transmit in the SCK rising edge of clock signal, and MCU12 is sent to MCU11 at the negative edge of SCK by the SO pin.
The effect of MCU13 is the CAN transceiver, as the interface between MCU12 and the vehicle CAN bus, for vehicle CAN bus provides differential transmission performance, for MCU12 provides differential receptivity.MCU12 exports the data stream of serial to MCU13 by the TXD pin, the internal comparator of MCU13 converts differential bus signals logic level signal to and is connected to MCU12 in the output of RXD pin, and MCU13 then has the bus termination CANH of differential reception and transmittability and CANL is connected to the automobile bus circuit through the level conversion switch circuit H line and L line by its two.
Fig. 3 is a master routine control module circuit structure diagram of the present utility model, and the chip that wherein MCU21 is adopted is STR712F in the present embodiment, and the chip that MCU22 adopts is IMP706TESA.
MCU21, MCU22 link to each other with power module 5, provide operating voltage 3.3V, 3.3V by power module 5 respectively for these two MCU.MCU21 provides clock signal by the external crystal oscillator of 16MHz.
The effect of MCU21 is a master program(me) controller, from the control command signal of UARTO interface reception from mobile communication module 3; Instruct to the AT of MCU11 output by the UART1 interface with vehicle OBD interface communication; From the vehicle OBD signal of UART1 interface reception from data acquisition and control module 1; Carry out the operation result that obtains of data storage computing through the RAM of master program(me) controller inside storer, clock and data-carrier store; Use data by the UARTO interface to the vehicle that MCU31 output calculation process obtains.
The effect of MCU22 is a master program(me) controller work watch-dog, functions such as the house dog integrated circuit that MCU22 and peripheral circuit constitute powers on for the work of MCU21 provides, power-off reset, supply voltage monitoring, house dog.
Fig. 4 is a mobile communication module circuit structure diagram of the present utility model, the embedded high-speed GSM/GPRS module that wherein MCU31 is adopted is a MOTOROLA G24 module in the present embodiment, the SIM card that MCU32 adopts is to insert the SIM service card of China Mobile, the LM2576 that MCU33 adopts.
The effect of MCU31 is the GPRS wireless communication module, the RXD of the UARTO interface by MCU21, TXD interface are as the transmission channel of AT instruction and data, realize the GPRS wireless networking capabilities of master routine control module 2, receive, send data by mobile communication antenna 4.The operating voltage of MCU31 is provided by the efficient mu balanced circuit that MCU33 and its peripheral circuit constitute.
The effect of MCU32 is to insert the GPRS communication network as MCU31 the identification authentication voucher is provided, and the information encryption algorithm is provided.MCU32 is by CLK, RST, these several pins of VCC, DIO and SIM_CLK, SIM_RST_N, SIM_VCC, being connected of these several pins of SIM_DIO of MCU31 realize that it connects the GPRS network function.
The effect of MCU33 is to provide voltage-stabilizing working power supply for MCU31, introduce the 12V input voltage from power module 5, through utilizing MCU33 and electric capacity, resistance and voltage stabilizing diode to constitute efficient mu balanced circuit, be output as stable, the low ripple output voltage that reliably working provides of MCU31.
Fig. 5 is a power module circuitry structural drawing of the present utility model, wherein the model by AMP is that the connector of 1-963539-1 is connected with the vehicle power supply parts, insert the 12V automobile power source, constituting voltage conversion circuit by two low difference voltage regulator LM1117-5.0, LM1117-3.3 chip and electric capacity, the 12V automobile power source is converted to 3.3V voltage is data acquisition and control module, master routine control module, mobile communication module power supply, constitutes power module 5 of the present utility model.
With functional schematic of the present utility model shown in Figure 6 workflow of the present utility model is explained:
It is the control command signal that the collection vehicle of the ASCII character form propagated of carrier is used information data that mobile communication module 3 receives by the GPRS wireless network by mobile communication antenna 4, by the serial data mouth G20TXD between MCU21 and the MCU31 and the G20RXD transmission channel as the AT instruction and data, the host computer that transmission mobile communication module 3 is received instructs to master routine control module 2; Working properly for guaranteeing MCU31, the mu balanced circuit that is made of MCU33 and peripheral circuit thereof provides low ripple output voltage for MCU31.
Master program(me) controller MCU21 uses the control command signal of information data to store and computing by its inner RAM storer, external clock and data-carrier store to the collection vehicle of the ASCII character form of MCU31 transmission, and operation result changed into AT instruction, be sent in the MCU11 by serial data mouth OBD TXD and OBD RXD between MCU21 and the MCU11; Working properly for guaranteeing MCU21, the watchdog circuit that is made of MCU22 and peripheral components thereof carries out the work monitoring to master program(me) controller MCU21.The information of sending from MCU21 may be the inside AT instruction of master program(me) controller, also may be the command information that needs to send to behind the reformatting vehicle CAN bus.
When the information of sending as MCU21 is the AT instruction, the operation result of master program(me) controller MCU21 and the AT of image data instruction are by K_Send and the L_Send interface of MCU11, through triode, the level conversion switch circuit that resistance is formed, send into the K line and the L line of vehicle OBD interface, vehicle motor is started in realization or shutdown signal detects, engine control system detects, the gearbox control system input, the engine oil pressure pickup input, the fuel sensor input, vehicle speed sensor vehicle speed pulse input, the speed probe rotational speed pulse signal detects, acceleration transducer signals detects, braking system control system input, operations such as clutch control input, detected information can comprise: real-time vehicle running speed, the distance travelled number, the engine oil pressure state, the fuel oil user mode, engine operation variation etc.;
MCU11 communicates by letter with the L line with the K line of vehicle OBD interface after the success, more than detected OBD signal through the level conversion switch circuit, return MCU11 by K_Rev and L_Rev interface, MCU11 OBD signal that reads from the K line and the L line of vehicle OBD interface is by the internal arithmetic analysis, change into the AT character information that calculates function identification, be sent in the master program(me) controller MCU21 by serial data mouth OBD TXD and OBD RXD between MCU11 and the MCU21.
If between master program(me) controller MCU21 and the MCU11 on serial data mouth OBD TXD and the OBD RXD information transmitted with A and T beginning, they are exactly the order of vehicle CAN bus so, need CAN protocol controller MCU12 that the order of these vehicle CAN bus is carried out being resent to vehicle CAN bus behind the reformatting.The order of these vehicle CAN bus will be connected to MCU12 by the SPI interface by MCU11, handle all messages that commute between vehicle CAN bus and the master program(me) controller MCU21 by CAN protocol controller MCU12 and receive and send, send and receive normal data frame, growth data frame and the remote frame of vehicle CAN bus.
Be the data stabilization transmission that guarantees to obtain from the automobile CAN-bus circuit, between CAN protocol controller MCU12 and vehicle CAN bus, add CAN transceiver MCU13, MCU12 provides differential receptivity for the CAN protocol controller, for vehicle CAN bus provides differential transmission performance.MCU12 exports the data stream of serial to MCU13 by serial data mouth TXD pin, MCU13 then forms H line and the L line that the RC low-pass filter is connected to the vehicle CAN bus circuit by its two terminal interface CANH and CANL by differential reception and transmittability through electric capacity over the ground, finish the data communication between master program(me) controller MCU11 and the vehicle CAN bus, obtain the H line of automobile CAN-bus circuit and the differential bus signals that the L line obtains.
The internal comparator of CAN transceiver MCU13 will obtain differential bus signals from the H line and the L line of automobile CAN-bus circuit, convert logic level signal to and be sent to CAN protocol controller MCU12 from the output of the serial data mouth RXD pin of MCU13, after by CAN protocol controller MCU12 these vehicle CAN bus signals being carried out reformatting, be sent to MCU11 by the SPI interface; By vehicle OBD diagnosing protocol converter MCU11 the vehicle CAN bus signal by the internal arithmetic analysis, change into the AT character information that calculates function identification.
More than the information that receives by automotive universal diagnose interface (OBD interface) K line and L line, and the information that receives by the H line and the L line of automobile CAN-bus circuit, in MCU11, all will change into the AT character information that can be calculated function identification, be sent in the MCU21 by serial data mouth OBD TXD and OBD RXD between MCU11 and the MCU21; RAM storer, external clock and data-carrier store by master program(me) controller MCU21 inside are stored and computing the AT character information that MCU21 transmits, operation result is changed into the ASCII character form, be sent to MCU31 by serial data mouth G20TXD and G20RXD between MCU21 and the MCU31; Being sent by the GPRS wireless network by mobile communication antenna 4 by MCU31 is the vehicle that the collects use data message of the ASCII character form of carrier propagation.
The utility model has the advantage of: one, have the connecting interface that to communicate by letter and to provide OBD system diagnostics service with the vehicle automatic Establishment; Two, Can obtain and show that the OBD system of vehicle is to the diagnosis support situation of all parts or system and the performance (ready state of diagnosis Readiness status); Three, can obtain and current data that demonstration is relevant with motor vehicle emission stream; Four, can obtain vehicle OBD system and produce event Barrier is stored during code freezes the note data; Five, can read vehicle ECU essential information, comprise vehicle VIN code (VIN coding Vehicle Identifcation Number), software is demarcated version number, software revision identifier etc.; Six, according to communication protocol description, obtain and show vapour Test parameter and result that car OBD system is relevant with discharging; Seven, be applicable to various vehicles, be difficult for damagedly, and guarantee that the user can not get mistake Information and read effective OBD system information.
The explanation of nouns of relevant technical terms:
ECU: ECU is the core control element of electronic fuel injection system. ECU is actually a microcomputer, and it connects on the one hand Receipts are finished the processing to these information on the other hand from the signal of sensor, and send the positive positive motion that corresponding control instruction is controlled executive component Do, like this, the performance of engine, fuel consume and toxic emission all can remain on optimum state. In addition, ECU also has automatically cut-out The function of electric fuel pump circuit, control is exactly (forced idling worker when vehicle unclamps suddenly the gas pedal deceleration in high speed driving such as DECEL ENLEAN Condition), automatically interrupts fuel oil by computer and spray, until engine speed is recovered oil spout when dropping to the slow-speed of revolution of setting again. Its objective is in order to control The discharging of nuisance reduces fuel consume during the anxious deceleration of system, impels engine speed to descend as early as possible, is conducive to vehicle deceleration. Behind cold start, if Engine not yet warming up namely allows Vehicle Driving Cycle, and ECU is the function that raises rapidly of restricted rotating speed also, and is excessive when the cold car to prevent cylinder Wearing and tearing.
OBD:On-Board Diagnostics, the vehicle-mounted computer diagnostic system, the vehicle maintenance personnel can use this equipment to good grounds standard production Vehicle carry out fault diagnosis at same position by same diagnose interface.
The SPI interface: full name be Serial Peripheral Interface, mean SPI. The SPI interface is mainly used in EEPROM, FLASH, real-time clock, AD converter also has between digital signal processor and the digital signal decoder.
CAN is the abbreviation of controller local area network (Controller Area Network, CAN). In order to simplify circuit and reducing cost, on the automobile Information transmission between a plurality of ECU will be adopted a kind of multiplex communication network technology that is called, with network system of ECU formation of car load, also It is exactly the CAN data/address bus.
Watchdog circuit: whether watchdog circuit is used for detecting microprocessor working properly, if scm application system work is undesired, and journey Order flies, and the input of watchdog circuit just can not be triggered, and the output of watchdog circuit will produce a reset pulse so, makes system multiple The position.
The AT instruction: the AT instruction is the industrial standard of modem communication interface, and the AT instruction is the order that modem can be identified and carry out. The AT instruction is simple to be grasped easily, uses it to cooperate communication software work to communicate by letter with far end system and initiates or reply a calling.
Claims (10)
1. vehicle remote information acquisition and transmitting device, it is characterized in that, comprise: casing, printed circuit board, data acquisition and control module, master routine control module, mobile communication module, mobile communication antenna, power module, printed circuit board is installed on casing inside, and data acquisition and control module is connected with the master routine control module; The master routine control module is connected with mobile communication module; Mobile communication module is connected with mobile communication antenna; Power module is connected with data acquisition and control module, master routine control module, mobile communication module respectively, for above-mentioned module provides operating voltage; Above-mentioned module and mobile communication antenna all are installed on the printed circuit board; Data acquisition and control module is connected with the vehicle interior electronic control unit with travel speed, distance travelled number, engine, wheel box, brake, machine oil change information.
2. vehicle remote information acquisition according to claim 1 and transmitting device is characterized in that data acquisition and control module comprises:
Vehicle OBD diagnosing protocol converter, adopt 8 8-digit microcontroller LPC9xx family chips, be used for conversion vehicle OBD diagnosing protocol between automobile conventional data diagnose interface and the computing machine RS232 interface, make the master routine control module can use the AT instruction by automobile conventional data diagnose interface visit vehicle electric control module;
The CAN protocol controller adopts the MCP251x family chip, is used to send and receive normal data frame, growth data frame and remote frame between vehicle CAN bus and the vehicle OBD diagnosing protocol converter;
The CAN transceiver adopts CAN transceiver TJA105x chip, as the interface between CAN protocol controller and the vehicle CAN bus, for vehicle CAN bus provides differential transmission performance, for the CAN protocol controller provides differential receptivity.
3. vehicle remote information acquisition according to claim 2 and transmitting device, it is characterized in that, described vehicle OBD diagnosing protocol converter adopts external crystal oscillator that clock signal is provided, and carries out data communication through K line and the L line of being made up of resistance and triode behind the on-off circuit with automobile conventional data diagnose interface.
4. vehicle remote information acquisition according to claim 2 and transmitting device is characterized in that, described CAN protocol controller is connected with vehicle OBD diagnosing protocol converter by the industrywide standard Serial Peripheral Interface (SPI).
5. vehicle remote information acquisition according to claim 1 and transmitting device, it is characterized in that, the master program(me) controller of described master routine control module adopts 16/32 8-digit microcontroller STR71xF family chip, adopt external crystal oscillator that clock signal is provided, this master program(me) controller uses the AT instruction to carry out data communication with the vehicle interior electronic control unit, and the data of data collecting module collected are sent to mobile communication module.
6. vehicle remote information acquisition according to claim 5 and transmitting device, it is characterized in that the integrated circuit that is made of microprocessor monitors device IMP70x family chip and peripheral circuit powers on for master program(me) controller work provides, the monitoring of power-off reset, supply voltage, watchdog function.
7. vehicle remote information acquisition according to claim 1 and transmitting device, it is characterized in that, the GPRS wireless communication module of described mobile communication module adopts MOTOROLA G2x series module, stablize the fast wireless network service for data transmission provides, receive and send the data communication that commutes between remote computer and the vehicle interior electronic control unit.
8. vehicle remote information acquisition according to claim 9 and transmitting device is characterized in that, adopt the SIM card of China Mobile to provide the identification authentication voucher for the GPRS wireless communication module inserts the GPRS communication network.
9. vehicle remote information acquisition according to claim 1 and transmitting device, it is characterized in that, the GPRS wireless communication module of described mobile communication module adopts LM257x family chip and the peripheral components in the switching power supply chip to constitute efficient mu balanced circuit, for the GPRS wireless communication module provides low ripple operating voltage.
10. vehicle remote information acquisition according to claim 1 and transmitting device, it is characterized in that, described power module adopts AMP1-9635xx series connector to be connected with the automobile power source parts, insert the 12V automobile power source, again by constituting voltage conversion circuit by two low difference voltage regulator LM1117x family chips, converting the 12V automobile power source operating voltage of 3.3V to, is data acquisition and control module, master routine control module, mobile communication module power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201626629U CN201237804Y (en) | 2008-08-14 | 2008-08-14 | Vehicle remote information collection and transmission apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201626629U CN201237804Y (en) | 2008-08-14 | 2008-08-14 | Vehicle remote information collection and transmission apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201237804Y true CN201237804Y (en) | 2009-05-13 |
Family
ID=40650539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201626629U Expired - Fee Related CN201237804Y (en) | 2008-08-14 | 2008-08-14 | Vehicle remote information collection and transmission apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201237804Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853021A (en) * | 2010-05-25 | 2010-10-06 | 金龙联合汽车工业（苏州）有限公司 | Vehicle remote data acquisition system based on CAN (Controller Area Network) bus |
| CN101986223A (en) * | 2010-07-21 | 2011-03-16 | 浙江吉利汽车研究院有限公司 | Remote monitoring, diagnosis and calibration system of automobile |
| CN102291444A (en) * | 2011-08-04 | 2011-12-21 | 哈尔滨海铭科技有限公司 | On-board computer based on real-time information of communication network and service center diagnosis system |
| CN102307231A (en) * | 2011-08-19 | 2012-01-04 | 奇瑞汽车股份有限公司 | Remote diagnostic apparatus and work system thereof |
| CN102393725A (en) * | 2010-12-03 | 2012-03-28 | 天津职业技术师范大学 | Automobile fault code monitoring system based on GSM (Global System for Mobile Communication) network |
| CN102646294A (en) * | 2012-05-11 | 2012-08-22 | 海华电子企业(中国)有限公司 | Vehicle-using record counting method based on satellite positioning and radio identification technology |
| CN102710762A (en) * | 2012-05-26 | 2012-10-03 | 深圳市成为智能交通系统有限公司 | Multifunctional intelligent vehicle networking terminal and method for implementing same |
| CN103778688A (en) * | 2014-01-13 | 2014-05-07 | 深圳市元征科技股份有限公司 | Car operation data acquisition device based on car diagnosis technology |
| CN106099980A (en) * | 2016-07-20 | 2016-11-09 | 国网江苏省电力公司南通供电公司 | Integral type small-sized distributed photovoltaic grid integration information collecting device |
| CN106680530A (en) * | 2017-02-23 | 2017-05-17 | 北京惠达智农科技有限公司 | Non-contact type rotating speed measuring apparatus |
| CN108347305A (en) * | 2018-02-23 | 2018-07-31 | 北京朗芯科技有限公司 | Tamper discharging method, anti-disassembling device and the automobile of vehicle positioning equipment |
| WO2023049740A1 (en) * | 2021-09-24 | 2023-03-30 | Cummins Inc. | Ecu interface management |
-
2008
- 2008-08-14 CN CNU2008201626629U patent/CN201237804Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853021A (en) * | 2010-05-25 | 2010-10-06 | 金龙联合汽车工业（苏州）有限公司 | Vehicle remote data acquisition system based on CAN (Controller Area Network) bus |
| CN101986223A (en) * | 2010-07-21 | 2011-03-16 | 浙江吉利汽车研究院有限公司 | Remote monitoring, diagnosis and calibration system of automobile |
| CN102393725A (en) * | 2010-12-03 | 2012-03-28 | 天津职业技术师范大学 | Automobile fault code monitoring system based on GSM (Global System for Mobile Communication) network |
| CN102291444A (en) * | 2011-08-04 | 2011-12-21 | 哈尔滨海铭科技有限公司 | On-board computer based on real-time information of communication network and service center diagnosis system |
| CN102307231B (en) * | 2011-08-19 | 2013-11-20 | 奇瑞汽车股份有限公司 | Remote diagnostic apparatus and work system thereof |
| CN102307231A (en) * | 2011-08-19 | 2012-01-04 | 奇瑞汽车股份有限公司 | Remote diagnostic apparatus and work system thereof |
| CN102646294A (en) * | 2012-05-11 | 2012-08-22 | 海华电子企业(中国)有限公司 | Vehicle-using record counting method based on satellite positioning and radio identification technology |
| CN102710762A (en) * | 2012-05-26 | 2012-10-03 | 深圳市成为智能交通系统有限公司 | Multifunctional intelligent vehicle networking terminal and method for implementing same |
| CN103778688A (en) * | 2014-01-13 | 2014-05-07 | 深圳市元征科技股份有限公司 | Car operation data acquisition device based on car diagnosis technology |
| CN106099980A (en) * | 2016-07-20 | 2016-11-09 | 国网江苏省电力公司南通供电公司 | Integral type small-sized distributed photovoltaic grid integration information collecting device |
| CN106680530A (en) * | 2017-02-23 | 2017-05-17 | 北京惠达智农科技有限公司 | Non-contact type rotating speed measuring apparatus |
| CN108347305A (en) * | 2018-02-23 | 2018-07-31 | 北京朗芯科技有限公司 | Tamper discharging method, anti-disassembling device and the automobile of vehicle positioning equipment |
| WO2023049740A1 (en) * | 2021-09-24 | 2023-03-30 | Cummins Inc. | Ecu interface management |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201237804Y (en) | Vehicle remote information collection and transmission apparatus | |
| CN101276488B (en) | Vehicular recording instrument capable of implementing intelligent CAN bus communication | |
| CN106774272B (en) | A kind of vehicular engine based on cloud computing platform remotely monitors, demarcates and big data collection system and its working method | |
| US20030167345A1 (en) | Communications bridge between a vehicle information network and a remote system | |
| CN102176158B (en) | Method and system for diagnosing vehicle data by using mobile terminal | |
| CN202472410U (en) | Automobile OBD fault diagnostic device based on wireless technology | |
| CN104635690A (en) | Vehicle control unit of pure electric vehicle integrating gateway function | |
| CN101916089B (en) | Configurable passenger car body control system and parameter configuration method thereof | |
| US20030163587A1 (en) | Vehicle communications network adapter | |
| CN102307231B (en) | Remote diagnostic apparatus and work system thereof | |
| US20120245786A1 (en) | Multi-Protocol Vehicle Diagnostic Interface Device and Method | |
| CN101853021A (en) | Vehicle remote data acquisition system based on CAN (Controller Area Network) bus | |
| CN201681298U (en) | On-board remote data acquisition system based on CAN bus | |
| CN202735835U (en) | Remote vehicle diagnosis system and remote diagnosis system | |
| CN201657031U (en) | Vehicle running information acquisition system based on CAN bus | |
| CN211642076U (en) | Vehicle state acquisition and transmission device and management system thereof | |
| JP2007028377A (en) | Method of setting communication specification of gateway apparatus for in-vehicle lan and method of setting communication mode, and setting apparatus used for methods | |
| CN105513160A (en) | OBD-II-based vehicle-mounted intelligent terminal and vehicle-mounted information public service system | |
| CN205427973U (en) | Intelligent terminal and public service system of on -vehicle information based on OBD -II | |
| CN106155036A (en) | A kind of automotive diagnostic system, system and method | |
| CN211579994U (en) | Remote monitoring module meeting national six standards of motor vehicle and motor vehicle | |
| CN105516076A (en) | Unified multi-protocol conversion device | |
| CN209897282U (en) | Remote monitoring device based on OBD | |
| CN107650839A (en) | A kind of new-energy automobile remote monitoring terminal | |
| CN203727307U (en) | Battery electric vehicle control module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xu Li Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20110814 |