CN101890932A - Intelligent anti-theft device of automobile based on in-vehicle communication system - Google Patents
Intelligent anti-theft device of automobile based on in-vehicle communication system Download PDFInfo
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Abstract
The invention provides an intelligent anti-theft device of an automobile based on an in-vehicle communication system, comprising a body control module (BCM) and an in-vehicle communication system. The BCM acquires the vehicle window state and the anti-clamping information sent by a vehicle window anti-clamping module via an LIN (Local Interconnect Network) bus and receives remote control information at the same time to carry out anti-theft setting on the vehicle; the anti-theft setting information and the window and door information are sent to the in-vehicle communication system by a controller area network (CAN) bus. The in-vehicle communication system acquires the concerned automobile parameters of users, including window and door information, fuel amount and tire pressure via the CAN bus; the whole vehicle is positioned by an integrated global positioning system (GPS) functional module; the vehicle positioning information and the acquired information are informed to the users in time by an integrated global system for mobile communication (GSM) functional module, so that the intelligent anti-theft effect of the vehicle is realized.
Description
Technical field
The present invention relates to a kind of alarms and security systems for automobiles, it is antitheft particularly to relate to a kind of automobile intelligent based on in-vehicle communication system.
Background technology
Present automobile burglar mainly utilizes short-range radio technology, dispose Body control module (BCM) or similar module on the vehicle, wherein integrated remote control treatment circuit, the main remote controller that receives transmits, simultaneously car load is locked and close vehicle window action, this anti-theft system belongs to open loop control system, and remote controller sends signal, and BCM moves according to telecommand.Because remote control distance is only effective in 11 meters scope, surpasses this distance, the user then can't be known the vehicle current state information.
Summary of the invention
The purpose of this invention is to provide a kind of intelligent anti-theft device of automobile that utilizes body control system and in-vehicle communication system to realize, it can be broken through constraint of remote control distance and take into account real-time simultaneously, and can allow the more convenient vehicle-state of learning more quickly of vehicle user.
Intelligent anti-theft device of automobile of the present invention comprises: Body control module, and it receives remote information, and vehicle is carried out security settings; In-vehicle communication system, it receives the security settings information from Body control module, and with this information real-time informing user.
Preferably, intelligent anti-theft device of automobile of the present invention also comprises the anti-pinching car window module, and it gathers vehicle window location information and anti-pinching car window information, and carries out communication by LIN bus and BCM.BCM is carrying out detecting ignition key gear information, door lock state information, vehicle door status information and remote information etc. before the intelligent anti-theft setting, when BCM detects that ignition key is extracted and when receiving remote information, BCM judges all vehicle door status, if key is extracted and all car doors are closed, then BCM driving door-lock motor is locked and the Car window electric machine automatic lifting windows, and receives by vehicle window position of transmitting on the LIN line and anti-pinch information.BCM carries out communication by CAN bus and in-vehicle communication system, BCM will become the CAN signal to send to in-vehicle communication system by information that receives on the LIN bus and the vehicle door status that collects information translation, and the residing anti-theft modes of the notice present vehicle of in-vehicle communication system: security settings failure mode, anti-theft modes, alarm mode.
When the user carries out security settings by remote controller, if BCM detects any one car door and does not close, to cause security settings to lose efficacy, BCM driving this moment steering indicating light is lighted, extinguish, light one-period again, antitheft unsuccessful to point out, detect which car door simultaneously and do not close also continuous detecting remote signal certain hour section, if BCM has not detected the remote signal input in this time inner segment, then BCM will not close car door information and the security settings fail message sends to in-vehicle communication system by the CAN signal, in-vehicle communication system for example sends to the user with the form of character message by for example GSM/GPRS network with the information that BCM sends, and embodies in the information of transmission and does not close car door information and security settings fail message.
When the user carries out security settings by remote controller, if BCM detects whole car doors and closes, at this moment, BCM drives door-lock motor and locks and the Car window electric machine automatic lifting windows, drive steering indicating light at regular intervals section light once, anti-theft loudspeaker at regular intervals section pipe once, drive antitheft indicator lamp one-period and light the certain hour section, extinguish the certain hour section, antitheft success is set, and receive vehicle window position and the anti-pinch information that sends by the anti-pinching car window module on the LIN bus with prompting.
If BCM receives and judge vehicle window Close All, this moment, BCM was with continuous monitoring remote signal certain hour section:
(1) if in this time period, BCM has detected remote control and has removed the input of security settings signal, then BCM driving steering indicating light is lighted, extinguish, light one-period again, remove security settings with prompting, begin simultaneously that detecting gate is opened and the key gear signal, if in the certain hour section, beat signal at the ON gear without any Men Kai and key, then BCM driving door-lock motor is locked and is driven antitheft indicator lamp again and lights, extinguish one-period, with the prompting secondary antitheft success is set, BCM is with reclocking and continuous monitoring remote signal certain hour section simultaneously, if in this time period, BCM has not detected the remote signal input, then BCM sends to in-vehicle communication system with the security settings successful information by the CAN signal, in-vehicle communication system for example sends to the user with the form of literal by for example GSM/GPRS network with the information that BCM sends, and embodies the security settings successful information in the information of transmission.BCM will enter low-power consumption mode simultaneously;
(2) if in the certain hour section, BCM has detected remote control the anti-theft signal input has been set, then BCM is with reclocking and continuous monitoring remote signal certain hour section, if in this time period, BCM has not detected the remote signal input, then BCM sends to in-vehicle communication system with the security settings successful information by the CAN signal, in-vehicle communication system for example sends to the user with the form of literal by for example GSM/GPRS network with the information that BCM sends, and embodies the security settings successful information in the information of transmission.BCM will enter low-power consumption mode simultaneously.
If BCM receives and judges vehicle window and do not close fully or anti-pinch takes place, then BCM is with continuous monitoring remote signal certain hour section, if in this time period, BCM has not detected the remote signal input, then BCM will not close vehicle window information and will send to in-vehicle communication system by the CAN signal, in-vehicle communication system for example sends to the user with the form of the short breath of literal by for example GSM/GPRS network with the information that BCM sends, and embodies vehicle window or the anti-pinch information of not closing in the information of transmission.
After antitheft success is set, if BCM detects any one and opens or key is beaten signal at the ON gear, then BCM triggers and reports to the police, this moment, BCM drove the steering indicating light flicker, drive the anti-theft loudspeaker warning that pipes, BCM is with continuous monitoring remote signal certain hour section simultaneously, to prevent user misoperation, if in this time period, BCM has not detected the remote signal input, then BCM sends alarm mode immediately to in-vehicle communication system, and in-vehicle communication system for example sends to the user with the form of the short breath of literal by for example GSM/GPRS network with alarm message, simultaneously alarm message is sent to the OEM base station and asks for help.
In addition, in-vehicle communication system carries out vehicle location and record position information by for example GPS module, and the CAN signal that sends at BCM is judged simultaneously, mainly judges vehicle window status information, vehicle door status information, security settings information etc.In-vehicle communication system receives the information of customer relationship simultaneously by the CAN bus, for example send to the user with the form of the short breath of literal in conjunction with BCM security settings information and GPS locating information by for example GSM/GPRS network.
Description of drawings
Fig. 1 shows the communication network constructional drawing of intelligent anti-theft device of automobile according to an embodiment of the invention.
Fig. 2 shows the structured flowchart of intelligent anti-theft device of automobile according to an embodiment of the invention.
Fig. 3 shows the car load network architecture block diagram that the present invention is correlated with.
Fig. 4 shows among the BCM block diagram that the receptor that receives remote signal is communicated by letter with MCU (microcontroller processing unit) among the BCM.
Fig. 5 shows an embodiment who receives the receptor of remote signal among the BCM.
The specific embodiment
Describe automobile intelligent anti-theft system below with reference to the accompanying drawings in detail based on in-vehicle communication system according to exemplary embodiment of the present invention.
Fig. 1 shows the communication network constructional drawing of intelligent anti-theft device of automobile according to an embodiment of the invention.The anti-pinching car window module is gathered vehicle window location information and anti-pinching car window information, and carries out communication by LIN bus and BCM.BCM gathers door lock state information, door is opened status information and remote signal, and carries out communication by CAN bus CANL and CANH and in-vehicle communication system.In-vehicle communication system will be notified the user in real time by the information that the CAN bus receives.
Fig. 2 shows the structured flowchart of intelligent anti-theft device of automobile according to an embodiment of the invention.The anti-pinching car window module is integrated dual-Hall sensor, LIN bus transceiver and other are handled circuit, and wherein dual-Hall sensor is gathered the travel information of vehicle window travel direction and glass action respectively.BCM is integrated remote signal treatment circuit, LIN bus transceiver, CAN bus transceiver and being used to detects put in place other treatment circuits of signal etc. of ignition key gear information, central controlled lock incoming signal, door lock, wherein the central frequency of remote signal treatment circuit reception remote signal is chosen as about 433MHz, and the integrated LIN bus transceiver of LIN bus transceiver that the anti-pinching car window module is integrated and BCM carries out communication by the LIN bus.Integrated GPS functional module, GSM functional module, CAN bus transceiver and being used to receives other functional modules of the information that other users are concerned about in the in-vehicle communication system, CAN bus transceiver integrated in CAN bus transceiver that BCM is integrated and the in-vehicle communication system carries out communication by CANL and CANH bus, the GSM functional module (for example sends to user's mobile device by the GSM/GPRS network with information, and alarm message can be sent to the OEM base station mobile phone).
BCM detected the ignition key gear information before carrying out the intelligent anti-theft setting, door is opened status information etc., and received remote information.Extract and receive remote information when BCM detects ignition key, then BCM comes remote information is carried out demodulating and decoding by the remote information treatment circuit, and opens status information according to the door of being gathered and judge that all doors open incoming signal.
If BCM opens status information according to the door of being gathered and judges any one car door and do not close, as shown in table 1, the driver door status information that collects as BCM, copilot door status information or reserve chamber door status information are not 0 o'clock, then BCM drives flasher and lights 500 milliseconds, extinguish 1500 milliseconds, light 500 milliseconds of one-periods again, be provided with antitheft unsuccessful with prompting, detect which car door simultaneously and do not close also 10 remote control cycles of continuous monitoring, if BCM does not detect central controlled lock incoming signal or the door lock signal that puts in place in 10 remote control cycles, then BCM does not close information and security settings fail message are sent to in-vehicle communication system via the CAN bus by the CAN bus transceiver CAN bus transceiver with car door, the information that in-vehicle communication system sends BCM again sends to user via the GSM/GPRS network with the form of character message by wherein integrated GSM functional module, embodies do not close the door information and security settings fail message in the information of transmission.
When if BCM opens status information and judges whole car doors and closed according to the door of being gathered, as shown in table 1, the driver door state that collects as BCM, the value of copilot door state and reserve chamber door state is at 0 o'clock, BCM driving this moment door-lock motor is locked and the Car window electric machine automatic lifting windows, driving flasher lights once for per 500 milliseconds, anti-theft loudspeaker pipes once for per 50 milliseconds, drive in the antitheft indicator lamp one-period and light 100 milliseconds, extinguish 1900 milliseconds, with prompting antitheft success is set, and the integrated LIN bus transceiver of BCM receives vehicle window position and the anti-pinch information that is sent by the anti-pinching car window module on the LIN bus.
Table 1: in-vehicle communication system receives the message (part) on the CAN bus
If BCM receives and judge vehicle window Close All, shown in table 2 and table 3, when the value that receives WINDOW_POS_FL and WINDOW_POS_FR as BCM was 0000b, then BCM was with continuous monitoring remote signal 15 minutes:
(1) if BCM has detected the input of remote control releasing security settings signal in 15 minutes, then BCM drives flasher and lights 500 milliseconds, extinguish 500 milliseconds, light 500 milliseconds of one-periods again, remove security settings with prompting, begin simultaneously that detecting gate is opened and the key gear signal, if in (28+2) second, be ON without any Men Kai and key range state, then BCM drives again in the antitheft indicator lamp one-period and lights 100 milliseconds, extinguish 1900 milliseconds, with the prompting secondary antitheft success is set, simultaneously BCM was with reclocking and continuous monitoring remote signal 15 minutes, if in 15 minutes, do not detected the remote signal input, then BCM sends to user via the CAN bus with the form of literal with the security settings successful information by the CAN bus transceiver, embodies the security settings successful information in the information of transmission.BCM will enter low-power consumption mode simultaneously;
(2) if BCM has detected remote control anti-theft signal input has been set in 15 minutes, then BCM was with reclocking and continuous monitoring remote signal 15 minutes, if BCM has not detected the remote signal input in 15 minutes, then BCM sends in in-vehicle communication system integrated CAN bus transceiver with the security settings successful information via the CAN bus by its integrated CAN bus transceiver, the information that in-vehicle communication system sends BCM by the GSM functional module again sends to the user via the GSM/GPRS network with the form of literal, embodies the security settings successful information in the information of transmission.BCM will enter low-power consumption mode simultaneously.
If BCM receives and judges vehicle window and do not close fully or blocked by external force, shown in table 2 and table 3, WINDOW_POS_FL that receives as BCM or the value of WINDOW_POS_FR are during for 0000b, then BCM is with 10 remote control cycles of continuous monitoring, if not detect the value of WINDOW_MOVE_FL or WINDOW_MOVE_FR be 01b to BCM in 10 remote control cycles, then BCM will not close window information by its integrated CAN bus transceiver and will send to CAN bus transceiver integrated in the in-vehicle communication system via the CAN bus, the information that in-vehicle communication system sends BCM by the GSM functional module again sends to the user via the GSM/GPRS network with the form of literal, embodies window or the anti-pinch information of not closing in the information of transmission.
Table 2: left front vehicle window location information and anti-pinch information
Table 3: right front vehicle window location information and anti-pinch information
Table 4 shows the corresponding relation of vehicle window state and intelligent anti-theft system prompting.Vehicle receives remote control and locks after the order, and when vehicle window Close All, then short message prompt user vehicle enters anti-theft state; When vehicle window is all opened, the position is unknown or be in startups/default conditions, then short message prompt user vehicle enter anti-theft state still a left side/right front vehicle window do not close.
Table 4: the corresponding intelligent anti-theft system prompting of vehicle window state
After antitheft success is set, any one door is opened or key is beaten the gear at ON if BCM detects, as shown in table 1, when BCM collects the driver door state, the value of copilot door state or reserve chamber door state be 1 or the value of key range state be 2 o'clock, then BCM reports to the police, this moment, BCM drove the flasher flicker, drive the anti-theft loudspeaker warning that pipes, BCM is with 10 remote control cycles of continuous monitoring simultaneously, to prevent user misoperation, if BCM does not detect the remote signal input of remote-control key emission in this 10 remote control cycles, then as shown in table 1, it is that 10 alarm mode sends to CAN bus transceiver integrated in the in-vehicle communication system via the CAN bus that BCM will be worth by its integrated CAN bus transceiver immediately, the information that in-vehicle communication system sends BCM by the GSM functional module again sends to the user via the GSM/GPRS network with the form of literal, simultaneously alarm message is sent to the OEM base station and asks for help.
Table 5 shows after antitheft success is set, the intelligence system prompting after the door state changes.If have only driver door to open, then intelligent anti-theft system short message prompt user automobile storage is trespassing, and drives door and is opened; If driver door and copilot door are opened simultaneously, then intelligent anti-theft system short message prompt user automobile storage is trespassing, and driving door, copilot Men Jun are opened; If driver door, copilot door and reserve chamber door are opened simultaneously, then intelligent anti-theft system short message prompt user automobile storage is trespassing, and driver door, copilot door and reserve chamber door all are opened; If copilot door and reserve chamber door are opened simultaneously, then intelligent anti-theft system short message prompt user automobile storage is trespassing, and copilot door, reserve chamber door all are opened; If have only the reserve chamber door to open, then intelligent anti-theft system short message prompt user automobile storage is in illegal invasion, and the reserve chamber door is opened.
Table 5: intelligence system prompting after the door state changes
Fig. 3 shows the car load network architecture block diagram that the present invention is correlated with.When realizing the automobile intelligent anti-theft feature, the information of vehicles that the vehicle user is paid close attention to, also can from the CAN network, read out, these relevant informations are included in in the lower module, as: electric-control system (EMS), meter system (ICM), tire pressure monitoring system (TPMS), antiblock device (ABS), air bag module (ABM), transmission control unit (TCU) etc., which informational needs software setting is fuel liquid level as shown in table 1 from TPMS, specifically collect from EMS, tyre temperature and tire pressure.The above-mentioned information of collecting by the CAN network can utilize the GSM network to send to the vehicle user equally.
Fig. 4 shows among the BCM block diagram that the receptor that receives remote signal is communicated by letter with MCU (microcontroller processing unit).Receiving the receptor of remote signal among the BCM is connected with MCU (microcontroller processing unit) among the BCM, carry out communication by UART (asynchronous serial communication) or PWM (pulse duration modulation) mode, this receptor is integrated in the Body control module, be used to receive the wireless remote control signal, the wireless remote control signal is carried out demodulation, handle to MCU (microcontroller processing unit) data transfer after the demodulation.
In one embodiment, the receptor that receives remote signal among the BCM can realize by the TDA5210 chip, its periphery circuit design as shown in Figure 5, the central frequency that receives remote signal among this embodiment is chosen as 433.92MHz.
In sum, the present invention implants the relevant integrated chip of CAN communication in in-vehicle communication system and body control system, in vehicle window clipping prevention system, implant LIN communication integrated chip, body control system, in-vehicle communication system and vehicle window clipping prevention system are coupled together by the CAN/LIN network, realized the mutual transmission of information between three systems, under the support of application software, realize the automobile intelligent anti-theft feature, on the distance and the limitation on the real-time, the present invention can break through the constraint of remote control distance and take into account real-time simultaneously than existing body control system.In addition, the present invention has implanted GSM hardware module also at in-vehicle communication system in its internal system, and vehicle and vehicle user are connected by way of short messages, allows the vehicle-state of knowing of vehicle user more convenient and quicker.
Claims (10)
1. intelligent anti-theft device of automobile based on in-vehicle communication system, it comprises:
Body control module, it receives the remote information from the user, and vehicle is carried out security settings;
In-vehicle communication system, it receives the security settings information from Body control module, and with this information real-time informing user.
2. intelligent anti-theft device of automobile according to claim 1, wherein said in-vehicle communication system comprises the GPS functional module, it positions car load, in-vehicle communication system receives the information that the user is concerned about simultaneously, and in conjunction with the security settings information and the vehicle location information real-time informing user of Body control module.
3. intelligent anti-theft device of automobile according to claim 2, the information real-time informing user that wherein said in-vehicle communication system is concerned about security settings information, vehicle location information or user by himself integrated GSM functional module.
4. intelligent anti-theft device of automobile according to claim 1, wherein said Body control module detected ignition key gear information, vehicle door status information before carrying out security settings, when described Body control module detects any one car door and does not close, then security settings lost efficacy, to not close the door information and security settings fail message of Body control module sends to in-vehicle communication system, the information real-time informing user that in-vehicle communication system sends the Body Control pattern.
5. intelligent anti-theft device of automobile according to claim 4, also comprise the anti-pinching car window module, it gathers vehicle window state and anti-pinch information, when whole car doors have been closed, Body control module drives door-lock motor and locks and the Car window electric machine automatic lifting windows, prompting is provided with antitheft success, and reception is by the vehicle window state and the anti-pinch information of the transmission of anti-pinching car window module, when Body control module is judged vehicle window during Close All, the security settings successful information is sent to in-vehicle communication system, the information real-time informing user that in-vehicle communication system sends the Body Control pattern.
6. intelligent anti-theft device of automobile according to claim 5, when Body control module receives and judge vehicle window during Close All, continuous detecting remote signal certain hour section, remove the input of security settings signal if in this time period, detected remote control, then security settings are removed in prompting, detecting gate is opened and the key gear signal simultaneously, if beat gear without any Men Kai and key within a certain period of time at ON, then Body control module prompting secondary is provided with antitheft success, and the security settings successful information sent to in-vehicle communication system, the information real-time informing user that in-vehicle communication system sends Body control module.
7. intelligent anti-theft device of automobile according to claim 5, vehicle window is not closed fully or when anti-pinch takes place when the Body Control pattern receives and judges, continuous detecting remote signal certain hour section, if in this time period, there is not the remote signal input, then the Body Control pattern will not closed window information and will be sent to in-vehicle communication system, the information real-time informing user that in-vehicle communication system sends the Body Control pattern.
8. intelligent anti-theft device of automobile according to claim 5, after antitheft success is set, if the Body Control mode detection is opened or key is beaten the gear at ON to any one door, then trigger and report to the police, while continuous detecting remote signal certain hour section, if in this time period, do not detect the remote signal input, then the Body Control pattern sends alarm mode immediately to in-vehicle communication system, in-vehicle communication system sends to alarm message real-time informing user the OEM base station simultaneously and asks for help with alarm message.
9. intelligent anti-theft device of automobile according to claim 5, wherein Body control module and anti-pinching car window module are by the LIN bus communication.
10. intelligent anti-theft device of automobile according to claim 9, wherein Body control module and in-vehicle communication system carry out communication by the CAN bus, and Body control module will become the CAN signal to send to in-vehicle communication system by information that receives on the LIN bus and the vehicle door status that collects information translation.
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