CN102642509A - Embedding vehicle networking device and communication control method thereof - Google Patents
Embedding vehicle networking device and communication control method thereof Download PDFInfo
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Abstract
The invention provides an embedding vehicle networking device and a communication control method thereof. The embedding vehicle networking device can collect various information in vehicles, automatically achieves intelligent control of the vehicles, further achieves remote control of the vehicles, has the effect of compensation aiming at leaks of general packet radio service (GPRS)/global system for mobile communication (GSM) communication protocol, and is capable of effectively preventing crackers from entering a terminal of the vehicle network.
Description
Technical field:
The present invention relates to car networking field, specifically is a kind of can the personage linking, embedded car interconnection device and communication control method thereof that again can the car thing links, people's car links.
Background technology:
The notion of at present known car networking (also can be described as small-sized free-standing Internet of Things); Be meant that the electronic tag that is loaded on the vehicle is through recognition technologies such as less radio-frequencies; Be implemented on the information network platform to the attribute information of all vehicles and quiet, multidate information extracts and effectively utilize; And according to the different functions demand running state of all vehicles is carried out the actv. networking monitoring and integrated service is provided, as: open air-conditioning etc. with mobile phone remote door lock, remote control start a car, remote control.
Existing car networking adopts GSM/GPRS module and child node sensor to implement with point-to-point communication means with the GPRS/GSM/CDMA mobile radio communication as base net basically.After mobile communication gets into the multimedia communications such as application and internet that the third generation 3G communication technology combines 3G mobile; Hacker attacks has become the car inevitable disaster of networking; And the communication key of even more serious it can be cracked, and almost makes the security protection of car networking and Long-distance Control lose significance of application and the circumstances that loses more than gain.
At present existing case shows: in part such as BMW Assist, general purpose O nStar, Ford Sync; And the high-end tele-control system of using on the modern automobiles such as Blue Link is because the leak that communication protocol went out causes the note of GPRS/GSM network to be tackled (comprising the WiFi network); The control protocol of the tele-control system that vehicle is high-end is deciphered, and the terminal on the vehicle all can arbitrarily be opened by the door lock and the driving engine electric door lock of mobile phone control.
The reason that above-mentioned situation occurs: one of which at first is that the reverse-engineering of GPRS/GSM/CDMA mobile communication protocol and the note of GPRS/GSM network can be tackled; Its two, the hacker can get into the internet, can get into mobile radio communication equally, transmits so as telecommunication that the hacker can get into the car networking equally if car networking is based on mobile radio communication; They are three years old; It high-endly communicates by letter the networking of the car of prior art with the point-to-point method enforcement of GSM/GPRS module with the terminal of car networking; That is to say; Mobile phone can directly carry out remote control to the terminal of car networking, and the hacker is intercept information therefrom, duplicates through the mobile phone card number is decoded then and can directly get into the car networking to terminal enforcement control.
Summary of the invention:
The technical matters that the present invention will solve provide a kind of can be to the collection of the various information in the vehicle; Automatically to the vehicle implementation Based Intelligent Control; But also can realize the Long-distance Control automobile; And the leak to GPRS/GSM communication protocol plays the effect of mending the fold after the sheep is lost, and can effectively stop the hacker to get into the embedded car interconnection device and the communication control method thereof at the terminal of car networking.
A technical solution of the present invention is; A kind of embedded car interconnection device is provided; It comprises GSM/GPRS module, first microprocessor, have second microprocessor of data bank, several I/O ports, a plurality of sensors, a plurality of controller, and said I/O port and GSM/GPRS module are connected with first microprocessor; Said sensor and controller all are connected with first microprocessor through the I/O port, and said first microprocessor is connected with second microprocessor.
As improvement, it also comprises the geographic position locating module, and said geographic position locating module is connected with second microprocessor.Adopt the geographic position locating module can the geographical location information of vehicle itself put down in writing, and the geographical location information of vehicle is sent to vehicle administration office or user through first microprocessor and GSM/GPRS module.
Said sensor comprises that ethanol sensor, said controller comprise acoustic-optic alarm and automobile initiating means, and said ethanol sensor, acoustic-optic alarm and automobile initiating means are all through I/O port and first microprocessor wired connection; After chaufeur is drunk; When alcoholic strength surpasses the statutory regulations value, when ethanol sensor detects alcohol concentration and exceeds standard, send signal and give first microprocessor; First microprocessor receives signal; The back starts acoustic-optic alarm and cuts off automobile initiating means through the I/O port can't start vehicle, and transfers signals in second microprocessor, generates the note message through second microprocessor and data bank; And then sending to first microprocessor, first microprocessor sends to the vehicle administration office with the note message through the GSM/GPRS module.
Adopt these sensors and controller to constitute the drunk driving restraint device of vehicle, accomplish to prevent that chaufeur is drunk drives, reduce the generation of traffic accident.
Embedded car interconnection device also comprises the RFID electronic tag of record driver identity information; Said sensor comprises rfid interrogator; Said controller comprises automobile initiating means, and said rfid interrogator and automobile initiating means are through I/O port and first microprocessor wired connection.Chaufeur is carried the RFID electronic tag of record driver identity information, and vehicle is provided with rfid interrogator, when rfid interrogator is not read the RFID electronic tag that this vehicle driver carries; Automobile initiating means can break off voluntarily; Vehicle can't start, and has only when the correct chaufeur of this vehicle is driven, and rfid interrogator is read the driver identity information in the rfid card; Then open automobile initiating means, vehicle can be started.
Said sensor comprises smoke alarm, ion detector, and said controller comprises fire extinguisher control setup and acoustic-optic alarm; Said smoke alarm, ion detector, fire extinguisher control setup and acoustic-optic alarm are all through I/O port and first microprocessor wired connection.When smoke alarm and ion detector detect vehicle and catch fire; Send signal and give first microprocessor; First microprocessor receives and to start acoustic-optic alarm through the I/O port behind the signal and open fire extinguisher through the fire extinguisher control setup and put out a fire, and transfers signals in second microprocessor, generates the note message through second microprocessor and data bank; And then sending to first microprocessor, first microprocessor sends to the vehicle administration office with the note message through the GSM/GPRS module.
Said sensor comprises vehicle-mounted pick-up head, range only radar, and said controller comprises phonetic alarm and accel control, and said vehicle-mounted pick-up head, range only radar, phonetic alarm and accel control are all through I/O port and first microprocessor wired connection.Vehicle-mounted pick-up head and range only radar can send to first microprocessor with the range information between vehicle and the obstacle; First microprocessor sends to second microprocessor with this range information again; Second microprocessor is according to this range information computed range; And send control information to first microprocessor, first microprocessor changes into the control command to phonetic alarm and accel control with control information, thus control phonetic alarm and accel control are done corresponding actions.
Said sensor also comprises infrared detector, vibration detector, and said controller also comprises burglar alarm, and said infrared detector, vibration detector and burglar alarm are all through I/O port and first microprocessor wired connection; When vehicle is in anti-theft state; If infrared detector detects the people is arranged on the vehicle, perhaps vibration detector detects vehicle has under the situation of vibration, sends signal and gives first bit processor; First bit processor starts burglar alarm; And signal is transferred to second microprocessor, second microprocessor generates the note message according to the sensor number and the signal of transmission that are stored in the data bank; And then sending to first microprocessor, first microprocessor sends to the vehicle administration office with the note message through the GSM/GPRS module.
Said sensor comprises that also tire pressure detector, said controller also comprise superpressure annunciator and air pressure adjustment controller, and said tire pressure detector, superpressure annunciator and air pressure adjustment controller are all through the I/O port and the first bit processor wired connection; The tire pressure detector detects tire pressure; And the tire pressure signal is transferred to first bit processor, and first microprocessor is transferred to second microprocessor with the tire pressure signal, and second microprocessor calculates tire pressure according to data bank; And deal with; Control information is sent to first microprocessor, and first microprocessor changes into the control command to superpressure annunciator and air pressure adjustment controller with control information, thereby control superpressure annunciator and air pressure adjustment controller are done corresponding actions.
Said embedded car interconnection device also comprises detachable recording instrument, and said detachable recording instrument is connected with second microprocessor.This recording instrument can be got off control of the vehicle in the vehicle ' process and the data logging of going, and has the function of black box.
Behind the embedded car interconnection device, compared with prior art, the present invention has the following advantages more than the employing:
The first, the present invention is through the various sensors in first microprocessor and the vehicle and the wired connection of controller; Realization is to the collection of the various information in the vehicle; And under the situation of needs; Can the information that collect be sent to vehicle administration office or user, reach automatic guidance, but also can realize the Long-distance Control automobile vehicle.
The second, the prime information of the data bank of the present invention through second microprocessor mobile communication signal that the GSM/GPRS module is received converts the control information of new form to; And then send to first microprocessor; First microprocessor is controlled different I/O port institute bonded assembly controller according to control information; Even the hacker has invaded the GPRS/GSM mobile communications network, also can't invade user terminal, can effectively stop hacker and trojan horse directly to invade user terminal.And the less radio-frequency device is not set on vehicle, so the lawless person can't accomplish that safety is higher to vehicle destruction and control through cracking radiofrequency signal near vehicle.Because there is leak in the structure of the communication protocol of existing mobile communication network and employing thereof; Therefore though our this employing existing mobile communication network can not solve the existing existing leak of mobile communication protocol itself as the embedded car interconnection device of communication base net; Prevent that the hacker from getting into the terminal but can play, play the effect of mending the fold after the sheep is lost.
Another solution of the present invention provides a kind of communication control method of embedded car interconnection device, and it comprises monitor message data transmission method and the top-down control method of user from bottom to top:
Wherein monitor message data transmission method from bottom to top includes following steps:
(1), with the number information of each sensor, controller and the number information of embedded car interconnection device be stored in the data bank in second microprocessor;
(2), generate monitor message by sensor, and through the wire transmission of I/O port to first microprocessor, monitor message becomes to have the digital signal of sensor coding through the first microprocessor treatment conversion, then in this string digital data transmission to the second microprocessor,
(3), second microprocessor can discharge one group of signal that comprises that message signals and user register phone number from data bank according to the number information of the embedded car interconnection device in the data bank and sensor number information and be transferred to first microprocessor,
(4), first microprocessor will comprise that the signal that message signals and user register phone number sends to the GSM/GPRS module, is dealt into user with message note signal through mobile radio communication through the GSM/GPRS module then and registers mobile phone or vehicle administration office's monitoring and control centre.
The top-down control method of user may further comprise the steps:
(1), user mobile phone sends the note that contains control command; And send on the GSM/GPRS module of embedded car interconnection device through the mobile communication public network; The control command that said user mobile phone sends is a set of number information, comprising controller number information and control information;
(2), the GSM/GPRS module receives the control command that user mobile phone sends; Transfer to second microprocessor through first microprocessor, then according to the number information that is stored in each controller in the data bank, user's login coding, password, phone number judge that control command specifically is which controller of whereabouts; If the control command that user mobile phone sends can't inquire pairing controller in data bank; Then control failure, end are if success then gets into next step;
(3), second microprocessor specifically is that data which controller of whereabouts and control command itself send to first microprocessor with control command, and with the data storage of control command and which controller of whereabouts thereof in the data bank of second microprocessor;
(4), first microprocessor is controlled the pairing controller of control command that user mobile phone sends through wire transmission mode;
(5), if control successfully, then controller can start operation, controller can generate the return information of " controlling successfully " at this moment, the return information that said control is successful passes through monitor message data transmission method from bottom to top to user mobile phone; If embedded car interconnection device does not receive controller control information of successful; Embedded car interconnection device can generate the return information of a control failure, and the return information of said control failure is to be generated and transferred on the user mobile phone from bottom to top through the GSM/GPRS module by first microprocessor.
Behind the communication control method of embedded car interconnection device, compared with prior art, the present invention has the following advantages more than the employing:
The first, the present invention is through the various sensors in first microprocessor and the vehicle and the wired connection of controller; Realization is to the collection of the various information in the vehicle; And under the situation of needs; Can the information that collect be sent to vehicle administration office or user, reach automatic guidance, but also can realize the Long-distance Control automobile vehicle.
The second, the prime information of the data bank of the present invention through second microprocessor mobile communication signal that the GSM/GPRS module is received converts the control information of new form to; And then send to first microprocessor; First microprocessor is controlled different I/O port institute bonded assembly controller according to control information; Even the hacker has invaded the GPRS/GSM mobile communications network, also can't invade user terminal, can effectively stop hacker and trojan horse directly to invade user terminal.And the less radio-frequency device is not set on vehicle, so the lawless person can't accomplish that safety is higher to vehicle destruction and control through cracking radiofrequency signal near vehicle.
Description of drawings:
Accompanying drawing 1 is the functional-block diagram of the embedded car interconnection device of the present invention;
Accompanying drawing 2 is diagram of circuits of the monitor message data transmission method from bottom to top in the communication control method of the embedded car interconnection device of the present invention;
Accompanying drawing 3 is monitor message data transmission method from bottom to top and the diagram of circuits of signal conversion process in the communication control method of embedded car interconnection device;
Accompanying drawing 4 is diagram of circuits of the top-down control method of user in the communication control method of the embedded car interconnection device of the present invention;
Accompanying drawing 5 is the top-down control method of user and the diagram of circuits of signal conversion process in the communication control method of embedded car interconnection device;
Specific embodiment:
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further:
As shown in Figure 1: the present invention provides a kind of embedded car interconnection device; It comprises geographic position locating module, GSM/GPRS module, first microprocessor, has second microprocessor of data bank, several I/O ports; A plurality of sensors, a plurality of controller; Said I/O port and GSM/GPRS module are connected with first microprocessor; Said sensor and controller all are connected with first microprocessor through the I/O port, and said geographic position locating module is connected with second microprocessor, and said first microprocessor is connected with second microprocessor.Several I/O ports, GSM/GPRS module and first microprocessor constitute the first microprocessor system in the present embodiment; And geographic position locating module, second microprocessor that has a data bank constitute second microprocessor system; Can adopt common satellite positioning multimedia PC at present; It is satellite receiver, second microprocessor and data bank that this satellite positioning multimedia PC comprises the geographic position locating module, generally also has touching display screen and audio frequency and video module; But said first microprocessor system is through the number of expansion connection module expansion I/O port, to adapt to the demand of different vehicle.Said sensor and controller are connected with the I/O port through wired connection.The I/O port according to the function at the terminal that will insert write through software they be divided into two kinds of uplink port and downlink ports, wherein uplink port can only insert collector (sensor); Downlink port can not only connect the electrical equipment of switching value control, can also connect the electrical equipment of analog quantity and data volume control.
Said GSM/GPRS module is that GPRS/GSM network be connected with the car tube hub through moving public network with user mobile phone.Said sensor comprises that ethanol sensor, said controller comprise acoustic-optic alarm and automobile initiating means, and said ethanol sensor, acoustic-optic alarm and automobile initiating means are all through I/O port and first microprocessor wired connection; After chaufeur is drunk; When alcoholic strength surpasses the statutory regulations value, when ethanol sensor detects alcohol concentration and exceeds standard, send signal and give first microprocessor; First microprocessor receives signal; The back starts acoustic-optic alarm and cuts off automobile initiating means through the I/O port can't start vehicle, and transfers signals in second microprocessor, generates the note message through second microprocessor and data bank; And then sending to first microprocessor, first microprocessor sends to the vehicle administration office with the note message through the GSM/GPRS module.
Adopt these sensors and controller to constitute the drunk driving restraint device of vehicle, accomplish to prevent that chaufeur is drunk drives, reduce the generation of traffic accident.
Embedded car interconnection device also comprises the RFID electronic tag of record driver identity information; Said sensor comprises rfid interrogator; Said controller comprises automobile initiating means, and said rfid interrogator and automobile initiating means are through I/O port and first microprocessor wired connection.Chaufeur is carried the RFID electronic tag of record driver identity information, and vehicle is provided with rfid interrogator, when rfid interrogator is not read the RFID electronic tag that this vehicle driver carries; Automobile initiating means can break off voluntarily; Vehicle can't start, and has only when the correct chaufeur of this vehicle is driven, and rfid interrogator is read the driver identity information in the rfid card; Then open automobile initiating means, vehicle can be started.
Said sensor comprises smoke alarm, ion detector, and said controller comprises fire extinguisher control setup and acoustic-optic alarm; Said smoke alarm, ion detector, fire extinguisher control setup and acoustic-optic alarm are all through I/O port and first microprocessor wired connection.When smoke alarm and ion detector detect vehicle and catch fire; Send signal and give first microprocessor; First microprocessor receives and to start acoustic-optic alarm through the I/O port behind the signal and open fire extinguisher through the fire extinguisher control setup and put out a fire, and transfers signals in second microprocessor, generates the note message through second microprocessor and data bank; And then sending to first microprocessor, first microprocessor sends to the vehicle administration office with the note message through the GSM/GPRS module.
Said sensor comprises vehicle-mounted pick-up head, range only radar, and said controller comprises phonetic alarm and accel control, and said vehicle-mounted pick-up head, range only radar, phonetic alarm and accel control are all through I/O port and first microprocessor wired connection.Vehicle-mounted pick-up head and range only radar can send to first microprocessor with the range information between vehicle and the obstacle; First microprocessor sends to second microprocessor with this range information again; Second microprocessor is according to this range information computed range; And send control information to first microprocessor, first microprocessor changes into the control command to phonetic alarm and accel control with control information, thus control phonetic alarm and accel control are done corresponding actions.
Said sensor also comprises infrared detector, vibration detector, and said controller also comprises burglar alarm, and said infrared detector, vibration detector and burglar alarm are all through I/O port and first microprocessor wired connection; When vehicle is in anti-theft state; If infrared detector detects the people is arranged on the vehicle, perhaps vibration detector detects vehicle has under the situation of vibration, sends signal and gives first bit processor; First bit processor starts burglar alarm; And signal is transferred to second microprocessor, second microprocessor generates the note message according to the sensor number and the signal of transmission that are stored in the data bank; And then sending to first microprocessor, first microprocessor sends to the vehicle administration office with the note message through the GSM/GPRS module.
Said sensor comprises that also tire pressure detector, said controller also comprise superpressure annunciator and air pressure adjustment controller, and said tire pressure detector, superpressure annunciator and air pressure adjustment controller are all through the I/O port and the first bit processor wired connection; The tire pressure detector detects tire pressure; And the tire pressure signal is transferred to first bit processor, and first microprocessor is transferred to second microprocessor with the tire pressure signal, and second microprocessor calculates tire pressure according to data bank; And deal with; Control information is sent to first microprocessor, and first microprocessor changes into the control command to superpressure annunciator and air pressure adjustment controller with control information, thereby control superpressure annunciator and air pressure adjustment controller are done corresponding actions.
Said embedded car interconnection device also comprises detachable recording instrument, and said detachable recording instrument is connected with second microprocessor.This recording instrument can be got off control of the vehicle in the vehicle ' process and the data logging of going, and has the function of black box.
Another solution of the present invention provides a kind of communication control method of embedded car interconnection device, and it comprises monitor message data transmission method and the top-down control method of user from bottom to top:
Like Fig. 2, shown in Figure 3: wherein monitor message data transmission method from bottom to top includes following steps:
(1), with the number information of each sensor, controller and the number information of embedded car interconnection device be stored in the data bank in second microprocessor;
(2), generate monitor message by sensor; And pass through the wire transmission of I/O port to first microprocessor; Be through copper core three tree laces sensor to be connected to transfer to first microprocessor with I/O port expansion module in the present embodiment; This moment, monitor message was a level signal, and monitor message becomes to have the digital signal that sensor is encoded through the first microprocessor treatment conversion, and first microprocessor is checked and confirmed whether digital signal is correct; If correctly with in this string digital data transmission to the second microprocessor; First microprocessor communicates through the RS485 module and second microprocessor and gives second microprocessor with digital data transmission in the present embodiment, if mal then returns, first microprocessor is when receiving monitor message; If need control, then directly send control command and come through controller control Be Controlled facility to controller to controller.
(3), after second microprocessor receives this string digital signal; Second microprocessor can discharge one group of signal that comprises that message signals and user register phone number from data bank according to the number information of the embedded car interconnection device in the data bank and sensor number information and be transferred to first microprocessor, and second microprocessor is given first microprocessor through the RS232 module with this data transmission.This moment, digital signal was through converting message signals to.
(4), first microprocessor will comprise that the signal that message signals and user register phone number sends to the GSM/GPRS module, is dealt into user with message note signal through mobile radio communication through the GSM/GPRS module then and registers mobile phone or vehicle administration office's monitoring and control centre.
Like Fig. 4, shown in Figure 5: the top-down control method of user may further comprise the steps:
(1), user mobile phone sends the note that contains control command; And send on the GSM/GPRS module of embedded car interconnection device through the mobile communication public network; The control command that said user mobile phone sends is a set of number information, comprising controller number information and control information;
(2), the GSM/GPRS module receives the control command that user mobile phone sends, and transfers to second microprocessor through first microprocessor, first microprocessor can judge whether control command correct; If correctly then be transferred to second microprocessor; If mal does not then transmit, then according to the number information that is stored in each controller in the data bank, user's login coding, password, phone number judge that control command specifically is which controller of whereabouts; If the control command that user mobile phone sends can't inquire pairing controller in data bank; Then control failure, end are if success then gets into next step; This moment, the note signal converted control signal to.
(3), second microprocessor specifically is that data which controller of whereabouts and control command itself send to first microprocessor with control command, and with the data storage of control command and which controller of whereabouts thereof in the data bank of second microprocessor;
(4), first microprocessor is controlled the pairing controller of control command that user mobile phone sends through wire transmission mode; First microprocessor is checked this control command, if correct, then controller is controlled, if mal then returns;
(5), if control successfully, then controller can start operation, controller can generate the return information of " controlling successfully " at this moment, the return information that said control is successful passes through monitor message data transmission method from bottom to top to user mobile phone; If embedded car interconnection device does not receive controller control information of successful; Embedded car interconnection device can generate the return information of a control failure, and the return information of said control failure is to be generated and transferred on the user mobile phone from bottom to top through the GSM/GPRS module by first microprocessor.
Embedded car interconnection device of the present invention and communication control method thereof adopt following four kinds of technology to stop the terminal that the hacker gets into the car networking:
1) there is not the communication technology at the terminal of wireless communication module; The described communication technology that does not have the terminal of wireless communication module is meant all terminals, comprises on the control actr of sensor, control apparatus, facility of all Information Monitorings not establishing wireless signal transmitting module and coder.
2) null terminator Null node communication data reduction technology; Described null terminator Null node communication data reduction technology; The node code name of n I/O port that all that it is comprised the terminal are connected sensor, the controller of the Information Monitoring on the I/O port all is compressed in the same embedded car interconnection device, and each I/O port all is provided with cognizance code.
3) server data conversion release tech; Described server data conversion release tech, it can be divided into two kinds of data transmission conversion delivery modes of upward signal and downgoing signal:
First kind is upward signal data transmission conversion delivery mode (seeing Fig. 2, Fig. 3); Upward signal is pilot signal; When the end instr on certain I/O port institute bonded assembly collector becomes high trigger signal with the information that collects after amplifying circuit amplifies; This level signal can enter into first microprocessor through I/O port and port expansion module; Confirm that through microprocessor (whether flase alarm) handled the back and determined whether signal lets pass then; If " denying " signal uplink just is stopped; (see vector arrow among Fig. 2 represent the trend of digital signal) enters into second microprocessor through 485 interfaces if that " being " signal can continue is up; Whether second microprocessor at this moment can require check signal through the inferior affirmation of n level according to the software program that is write; Can temporarily stop uply like " denying " signal, wait for when reaching n geometry level time after the stack of next signal (be meant during n geometry level described here time when different sensors collects information of the same type when fire alarm takes place coexist send signal in the certain hour and confirm that fire alarm sets up) by cigarette sense, infrared, pyrostat at this moment second microprocessor can determine signal is sent to data bank, still sent to second microprocessor after this moment, data bank can convert digital signal to message signals; This moment, second microprocessor can determine the transmission object of message signals (to send to 119 like fire alarm; Theft alarm sends to 110), signal is through the first microprocessor of 232 interfaces entering car networking base station then, and this moment, first microprocessor can divide two tunnel transmissions with message signals according to the software program that writes; Wherein riches all the way gives GSM/GPRS module, converts message signals to the note letter signal by the GSM/GPRS module and sends to high-end unit of dealing with emergencies and dangerous situations and user mobile phone through GPRS/GSM/CDMA movable signal net.The controller that another road signal then converts digital signal to behind first microprocessor execution command is connected with copper core three tree laces through the I/O port is implemented control (as open the valve that disappears, open spray etc.) to the Be Controlled facility.
Second kind is downgoing signal data transmission conversion delivery mode (seeing Fig. 4, Fig. 5); Downgoing signal is control signal; Be by high-end user through high-end communications facility (computer that comprises the mobile phone register through car networking, wireless fixed telephone, band 3G network interface card) sent have the downlink short message signal of basic sign indicating number, code, information code name the time data transmission, conversion, dispose procedure (seeing Fig. 4, Fig. 5); After note signal that high-end user sends the SIM card number of the GSM/GPRS module that has base sign indicating number, code, information code name and base station through from the registration mobile phone to car networking base station sends; The GPRS/GSM/CDMA mobile radio communication can be sent to note on the GSM/GPRS module of car networking base station rapidly; The vector arrow of note signal black in Fig. 4 gets into first microprocessor then; The note signal was examined and was confirmed that high-end user institute give a signal is " being " or " denying " through microprocessor processes this moment, like " denying " signal end of transmission; Being about to the note signal like " being " converts in control signal sends to vehicle-mounted computer through 485 transmission routes second microprocessor (the vector arrow of Fig. 4 is represented the trend of note signal); Examine once more and confirm " being " or " denying " through microprocessor then; Then control signal is sent to data bank like " being "; Convert control signal to numeral execution signal by data bank and send to first microprocessor through 232 transmission routes; Again by first microprocessor will carry out signal convert to the execution command send to the I/O port, through copper core three tree laces execution command is passed to controller then and removes direct control Be Controlled facility.
4) car networking base station data recovery technique; Described car networking base station data recovery technique is meant that data bank moves conversion, the dispose procedure of literal → code name or code name → literal.Explain that theoretically up letter is by code name → literal, promptly code name is recovered to literal; Downgoing signal is by literal → code name,
It is to be fundamental point with I/O port code name that data bank is set up; Each I/O port code name is all corresponding a node in the data in server storehouse; And each code name all has one group of message identical with the child node feature content; These message statements, literal can require in the vehicle-mounted computer window, to write at any time adjustment according to user oneself, after confirming, are stored in the data bank.All hat has I/O port code name before the content of the release signal of data bank; Therefore when no child node connects under certain I/O port, in data bank, must inscribe the literal of " eating dishes without rice or wine " or " subsequent use ", otherwise car networking base station can be as the child node fault alarm when self check.
By these the four kinds car of group certainly (thing) networkings that technology constituted, this has just prevented the generation of a series of problems described in the background technology effectively.
Claims (10)
1. embedded car interconnection device; It is characterized in that: it comprises GSM/GPRS module, first microprocessor, has second microprocessor of data bank, several I/O ports; A plurality of sensors, a plurality of controller; Said I/O port and GSM/GPRS module are connected with first microprocessor, and said sensor and controller all are connected with first microprocessor through the I/O port, and said first microprocessor is connected with second microprocessor.
2. embedded car interconnection device according to claim 1, it is characterized in that: it also comprises the geographic position locating module, said geographic position locating module is connected with second microprocessor.
3. embedded car interconnection device according to claim 1; It is characterized in that: said sensor comprises that ethanol sensor, said controller comprise acoustic-optic alarm and automobile initiating means, and said ethanol sensor, acoustic-optic alarm and automobile initiating means are all through I/O port and first microprocessor wired connection.
4. embedded car interconnection device according to claim 1; It is characterized in that: said embedded car interconnection device also comprises the rfid card of record driver identity information; Said sensor comprises rfid interrogator; Said controller comprises automobile initiating means, and said rfid interrogator and automobile initiating means are through I/O port and first microprocessor wired connection.
5. embedded car interconnection device according to claim 1, it is characterized in that: said sensor comprises smoke alarm, ion detector, said controller comprises fire extinguisher control setup and acoustic-optic alarm; Said smoke alarm, ion detector, fire extinguisher control setup and acoustic-optic alarm are all through I/O port and first microprocessor wired connection.
6. embedded car interconnection device according to claim 1; It is characterized in that: said sensor comprises vehicle-mounted pick-up head, range only radar; Said controller comprises phonetic alarm and accel control, and said vehicle-mounted pick-up head, range only radar, phonetic alarm and accel control are all through I/O port and first microprocessor wired connection.
7. embedded car interconnection device according to claim 1; It is characterized in that: said sensor also comprises infrared detector, vibration detector; Said controller also comprises burglar alarm, and said infrared detector, vibration detector and burglar alarm are all through I/O port and first microprocessor wired connection.
8. embedded car interconnection device according to claim 1; It is characterized in that: said sensor comprises that also tire pressure detector, said controller also comprise superpressure annunciator and air pressure adjustment controller, and said tire pressure detector, superpressure annunciator and air pressure adjustment controller are all through the I/O port and the first bit processor wired connection.
9. embedded car interconnection device according to claim 1, it is characterized in that: it also comprises detachable recording instrument, said detachable recording instrument is connected with second microprocessor.
10. the communication of an embedded car interconnection device and control method, it is characterized in that: it comprises monitor message data transmission method and the top-down control method of user from bottom to top:
Wherein monitor message data transmission method from bottom to top includes following steps:
(1), with the number information of each sensor, controller and the number information of embedded car interconnection device be stored in the data bank in second microprocessor;
(2), generate monitor message by sensor, and through the wire transmission of I/O port to first microprocessor, monitor message becomes to have the digital signal of sensor coding through the first microprocessor treatment conversion, then in this string digital data transmission to the second microprocessor,
(3), second microprocessor can discharge one group of signal that comprises that message signals and user register phone number from data bank according to the number information of the embedded car interconnection device in the data bank and sensor number information and be transferred to first microprocessor,
(4), first microprocessor will comprise that the signal that message signals and user register phone number sends to the GPRS/GSM/GPRS module, is dealt into user with message note signal through mobile radio communication through the GPRS/GSM/GPRS module then and registers mobile phone or vehicle administration office's monitoring and control centre;
The top-down control method of user may further comprise the steps:
(1), user mobile phone sends the note that contains control command; And send on the GPRS/GSM/GPRS module of embedded car interconnection device through the mobile communication public network; The control command that said user mobile phone sends is a set of number information, comprising controller number information and control information;
(2), the GPRS/GSM/GPRS module receives the control command that user mobile phone sends; Transfer to second microprocessor through first microprocessor, then according to the number information that is stored in each controller in the data bank, user's login coding, password, phone number judge that control command specifically is which controller of whereabouts; If the control command that user mobile phone sends can't inquire pairing controller in data bank; Then control failure, end are if success then gets into next step;
(3), first microprocessor specifically is that data which controller of whereabouts and control command itself send to second microprocessor with control command, and with the data storage of control command and which controller of whereabouts thereof in the data bank of second microprocessor;
(4), first microprocessor is controlled the pairing controller of control command that user mobile phone sends through wire transmission mode;
(5), if control successfully, then controller can start operation, controller can generate the return information of " controlling successfully " at this moment, the return information that said control is successful passes through monitor message data transmission method from bottom to top to user mobile phone; If embedded car interconnection device does not receive controller control information of successful; Embedded car interconnection device can generate the return information of a control failure, and the return information of said control failure is to be generated and transferred on the user mobile phone from bottom to top through the GPRS/GSM/GPRS module by first microprocessor.
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