CN102642509B - Embedding vehicle networking device and communication control method thereof - Google Patents
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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, is specifically a kind of can personage being connected, embedded car interconnection device and communication control method thereof that again can car thing is connected, people's car is connected.
Background technology:
The concept of at present known car networking (also can be described as small-sized free-standing Internet of Things), refer to that the electronic tag being loaded on vehicle is by recognition technologies such as less radio-frequencies, realization on information network platform to the attribute information of all vehicles and quiet, multidate information extracts and effectively utilize, and according to different functional requirements, the running state of all vehicles is carried out actv. networking monitoring and integrated service is provided, as: with door lock controlled by cell phone, remote control start a car, remote control, open air-conditioning etc.
The networking of existing car is substantially usingd GPRS/GSM/CDMA mobile radio communication and is adopted GSM/GPRS module and child node sensor to implement with point-to-point communication means as base net.From mobile communication enter the third generation 3G communication technology in conjunction with multimedia communications such as the application of 3G mobile and internets after, hacker attacks has become the car inevitable disaster of networking, and the communication key of even more serious it can be cracked, almost make the security protection of car networking and the meaning and the circumstances losing more than gain that Long-distance Control has lost application.
At present existing case shows: in part such as BMW Assist, general purpose O nStar, Ford Sync, and the leak that the high-end tele-control system of applying on the modern automobiles such as Blue Link goes out due to communication protocol causes the note of GPRS/GSM network to be blocked (comprising WiFi network), the control protocol of the tele-control system that vehicle is high-end is decrypted, and door lock and driving engine electric door lock that the terminal on vehicle is controlled by mobile phone all can arbitrarily be opened.
The reason that occurs above-mentioned situation: first one is that the reverse-engineering of GPRS/GSM/CDMA mobile communication protocol and the note of GPRS/GSM network can be tackled; Its two, hacker can enter internet, can enter mobile radio communication equally, if car networking is to transmit hacker so based on mobile radio communication as telecommunication can enter equally car networking; They are three years old, network terminal of its high-end and car networking of the car of prior art is implemented to communicate by letter with the point-to-point method of GSM/GPRS module, that is to say, mobile phone can directly carry out remote control to the terminal of car networking, hacker is intercept information therefrom, then by mobile phone card number is decoded, copies and can directly enter car networking to terminal enforcement control.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of collection that can be to the various information in vehicle, automatically vehicle is realized to Based Intelligent Control, but also can realize Long-distance Control automobile, and the leak for GPRS/GSM communication protocol, play the effect of mending the fold after the sheep is lost, can effectively stop hacker to enter embedded car interconnection device and the communication control method thereof of 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, the second microprocessor with data bank, several I/O ports, a plurality of sensors, a plurality of controller, described I/O port and GSM/GPRS module are connected with first microprocessor, described sensor and controller are all connected with first microprocessor by I/O port, and described first microprocessor is connected with the second microprocessor.
As improvement, it also comprises Geographic mapping module, and described Geographic mapping module is connected with the second microprocessor.Adopt Geographic mapping module the geographical location information of vehicle itself can be recorded, and by first microprocessor and GSM/GPRS module, the geographical location information of vehicle is sent to vehicle administration office or user.
Described sensor comprises that ethanol sensor, described controller comprise acoustic-optic alarm and automobile initiating means, and described ethanol sensor, acoustic-optic alarm and automobile initiating means are all by I/O port and first microprocessor wired connection; After chaufeur is drunk, when alcoholic strength surpasses statutory regulations value, when ethanol sensor detects alcohol concentration and exceeds standard, send a signal to first microprocessor, first microprocessor receives signal, by I/O port, being started acoustic-optic alarm and cut off automobile initiating means afterwards to start vehicle, and transfer signals in the second microprocessor, by the second microprocessor and data bank, generate note message, and then sending to first microprocessor, first microprocessor sends to vehicle administration office by note message by GSM/GPRS module.
Adopt these sensors and controller to form the drunk driving restraint device of vehicle, accomplish to prevent chaufeur drunk driving, reduce the generation of traffic accident.
Embedded car interconnection device also comprises the RFID electronic tag that records driver identity information, described sensor comprises rfid interrogator, described controller comprises automobile initiating means, and described rfid interrogator and automobile initiating means are by I/O port and first microprocessor wired connection.Chaufeur is carried the RFID electronic tag that records driver identity information, 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 disconnect voluntarily, vehicle cannot start, and only has when the correct chaufeur of this vehicle is driven, and rfid interrogator is read the driver identity information in rfid card, open automobile initiating means, vehicle can be started.
Described sensor comprises smoke alarm, ion detector, and described controller comprises fire extinguisher control setup and acoustic-optic alarm; Described smoke alarm, ion detector, fire extinguisher control setup and acoustic-optic alarm are all by I/O port and first microprocessor wired connection.When smoke alarm and ion detector detect vehicle and catch fire, send a signal to first microprocessor, first microprocessor is started acoustic-optic alarm and by fire extinguisher control setup, is opened fire extinguisher and put out a fire by I/O port after receiving signal, and transfer signals in the second microprocessor, by the second microprocessor and data bank, generate note message, and then sending to first microprocessor, first microprocessor sends to vehicle administration office by note message by GSM/GPRS module.
Described sensor comprises vehicle-mounted camera, range only radar, and described controller comprises phonetic alarm and accel control, and described vehicle-mounted camera, range only radar, phonetic alarm and accel control are all by I/O port and first microprocessor wired connection.Vehicle-mounted camera and range only radar can send to first microprocessor by the range information between vehicle and obstacle, first microprocessor sends to the second microprocessor by this range information again, the second microprocessor calculates distance according to this range information, and send control information to first microprocessor, first microprocessor changes into the control command to phonetic alarm and accel control by control information, thereby control phonetic alarm and accel control are done corresponding actions.
Described sensor also comprises infrared detector, vibration detector, and described controller also comprises burglar alarm, and described infrared detector, vibration detector and burglar alarm are all by I/O port and first microprocessor wired connection; When vehicle is during in anti-theft state, if detecting, infrared detector on vehicle, has people, or vibration detector detects vehicle to be had in the situation of vibration, send a signal to the first bit processor, the first bit processor starts burglar alarm, and signal is transferred to the second microprocessor, the second microprocessor is according to being stored in sensor number in data bank and the signal of transmission, generate note message, and then sending to first microprocessor, first microprocessor sends to vehicle administration office by note message by GSM/GPRS module.
Described sensor also comprises that tire pressure detector, described controller also comprise over pressure alarm device and air pressure adjustment controller, and described tire pressure detector, over pressure alarm device and air pressure adjustment controller are all by I/O port and the first bit processor wired connection; Tire pressure detector detects tire pressure, and tire pressure signal is transferred to the first bit processor, first microprocessor is transferred to the second microprocessor by tire pressure signal, the 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 over pressure alarm device and air pressure adjustment controller by control information, thereby control over pressure alarm device and air pressure adjustment controller are done corresponding actions.
Described embedded car interconnection device also comprises detachable recording instrument, and described detachable recording instrument is connected with the second microprocessor.The data logging that this recording instrument can be controlled the vehicle in Vehicle Driving Cycle process and travel is got off, and has the function of black box.
Adopt after above embedded car interconnection device, compared with prior art, the present invention has the following advantages:
The first, the present invention is by the various sensors in first microprocessor and vehicle and the wired connection of controller, the collection of realization to the various information in vehicle, and the in the situation that of needs, the information collecting can be sent to vehicle administration office or user, and the automatic control to vehicle, but also can realize Long-distance Control automobile.
The prime information of the mobile communication signal that the second, the data bank of the present invention by the second microprocessor receives GSM/GPRS module converts the control information of new form to, and then send to first microprocessor, the controller that first microprocessor connects different I/O port according to control information is controlled, even if hacker has invaded GPRS/GSM mobile communications network, also cannot invade user terminal, can effectively stop hacker and trojan horse directly to invade user terminal.And radio-frequency device is not set on vehicle, so lawless person cannot, by cracking radiofrequency signal near vehicle, accomplish that safety is higher to vehicle destruction and control.Because there is leak in the structure of the communication protocol of existing mobile communications network and employing thereof, although therefore the existing mobile communications network of our this employings can not solve the existing leak of existing mobile communication protocol itself as the embedded car interconnection device of communication base net, but can play, prevent that hacker from entering terminal, play the effect of mending the fold after the sheep is lost.
Another solution of the present invention is to provide 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), by the number information of each sensor, controller and the number information of embedded car interconnection device be stored in the data bank in the second microprocessor;
(2), by sensor generating monitoring information, and by the wire transmission of I/O port to first microprocessor, monitor message is processed the digital signal convert to sensor coding through first microprocessor, then in this string digital data transmission to the second microprocessor,
(3), the 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 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 GSM/GPRS module, is then dealt into user by message note signal by mobile radio communication through GSM/GPRS module and registers mobile phone or vehicle administration office's monitoring and control centre.
The top-down control method of user comprises the following steps:
(1), user mobile phone sends the note that contains control command, and by mobile communication public network, send in the GSM/GPRS module of embedded car interconnection device, the control command that described user mobile phone sends is set of number information, comprising controller number information and control information;
(2), GSM/GPRS module receives the control command that user mobile phone sends, by first microprocessor, transfer to the second microprocessor, then according to the number information that is stored in each controller in data bank, user's login coding, password, phone number judgement control command be which controller of whereabouts specifically, if the control command that user mobile phone sends cannot inquire corresponding controller in data bank, control unsuccessfully, finish, if success enters next step;
(3), the second microprocessor by control command specifically data which controller of whereabouts and control command itself send to first microprocessor, and the data of control command and which controller of whereabouts thereof are stored in the data bank of the second microprocessor;
(4), first microprocessor controls by wire transmission mode the corresponding controller of control command that user mobile phone sends;
(5) if control successfully, controller can start operation, and this Time Controller can generate the return information of " controlling successfully ", and the successful return information of described control passes through monitor message data transmission method from bottom to top to user mobile phone; If embedded car interconnection device does not receive controller and controls successful information, embedded car interconnection device can generate one and control failed return information, and the return information of described control failure is to be generated and transferred on user mobile phone from bottom to top by GSM/GPRS module by first microprocessor.
Adopt after the communication control method of above embedded car interconnection device, compared with prior art, the present invention has the following advantages:
The first, the present invention is by the various sensors in first microprocessor and vehicle and the wired connection of controller, the collection of realization to the various information in vehicle, and the in the situation that of needs, the information collecting can be sent to vehicle administration office or user, and the automatic control to vehicle, but also can realize Long-distance Control automobile.
The prime information of the mobile communication signal that the second, the data bank of the present invention by the second microprocessor receives GSM/GPRS module converts the control information of new form to, and then send to first microprocessor, the controller that first microprocessor connects different I/O port according to control information is controlled, even if hacker has invaded GPRS/GSM mobile communications network, also cannot invade user terminal, can effectively stop hacker and trojan horse directly to invade user terminal.And radio-frequency device is not set on vehicle, so lawless person cannot, by cracking radiofrequency signal near vehicle, accomplish that safety is higher to vehicle destruction and control.
Accompanying drawing explanation:
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 monitor message in the communication control method of the embedded car interconnection device of the present invention data transmission method from bottom to top;
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 in the communication control method of embedded car interconnection device and the diagram of circuit of signal conversion process;
Specific embodiment:
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
As shown in Figure 1: the invention provides a kind of embedded car interconnection device, it comprises Geographic mapping module, GSM/GPRS module, first microprocessor, the second microprocessor with data bank, several I/O ports, a plurality of sensors, a plurality of controller, described I/O port and GSM/GPRS module are connected with first microprocessor, described sensor and controller are all connected with first microprocessor by I/O port, described Geographic mapping module is connected with the second microprocessor, and described first microprocessor is connected with the second microprocessor.In the present embodiment, several I/O ports, GSM/GPRS module and first microprocessor form first microprocessor system, and Geographic mapping module, with the second microprocessor of data bank, form the second microprocessor system, can adopt common satellite positioning multimedia PC at present, it is satellite receiver, the second microprocessor and data bank that this satellite positioning multimedia PC comprises Geographic mapping module, generally also has touching display screen and audio frequency and video module; Described first microprocessor system can expansion I/O port by expansion connection module number, to adapt to the demand of different vehicle.Described sensor and controller are connected with I/O port by wired connection.I/O port is write they is divided into two kinds of uplink port and downlink ports by software according to the function of the terminal that will access, and wherein uplink port can only access collector (sensor); The electrical equipment that downlink port can not only connecting valve amount be controlled, can also connecting analog amount and the electrical equipment controlled of data volume.
Described GSM/GPRS module is that GPRS/GSM network be connected with car tube hub by mobile public network with user mobile phone.Described sensor comprises that ethanol sensor, described controller comprise acoustic-optic alarm and automobile initiating means, and described ethanol sensor, acoustic-optic alarm and automobile initiating means are all by I/O port and first microprocessor wired connection; After chaufeur is drunk, when alcoholic strength surpasses statutory regulations value, when ethanol sensor detects alcohol concentration and exceeds standard, send a signal to first microprocessor, first microprocessor receives signal, by I/O port, being started acoustic-optic alarm and cut off automobile initiating means afterwards to start vehicle, and transfer signals in the second microprocessor, by the second microprocessor and data bank, generate note message, and then sending to first microprocessor, first microprocessor sends to vehicle administration office by note message by GSM/GPRS module.
Adopt these sensors and controller to form the drunk driving restraint device of vehicle, accomplish to prevent chaufeur drunk driving, reduce the generation of traffic accident.
Embedded car interconnection device also comprises the RFID electronic tag that records driver identity information, described sensor comprises rfid interrogator, described controller comprises automobile initiating means, and described rfid interrogator and automobile initiating means are by I/O port and first microprocessor wired connection.Chaufeur is carried the RFID electronic tag that records driver identity information, 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 disconnect voluntarily, vehicle cannot start, and only has when the correct chaufeur of this vehicle is driven, and rfid interrogator is read the driver identity information in rfid card, open automobile initiating means, vehicle can be started.
Described sensor comprises smoke alarm, ion detector, and described controller comprises fire extinguisher control setup and acoustic-optic alarm; Described smoke alarm, ion detector, fire extinguisher control setup and acoustic-optic alarm are all by I/O port and first microprocessor wired connection.When smoke alarm and ion detector detect vehicle and catch fire, send a signal to first microprocessor, first microprocessor is started acoustic-optic alarm and by fire extinguisher control setup, is opened fire extinguisher and put out a fire by I/O port after receiving signal, and transfer signals in the second microprocessor, by the second microprocessor and data bank, generate note message, and then sending to first microprocessor, first microprocessor sends to vehicle administration office by note message by GSM/GPRS module.
Described sensor comprises vehicle-mounted camera, range only radar, and described controller comprises phonetic alarm and accel control, and described vehicle-mounted camera, range only radar, phonetic alarm and accel control are all by I/O port and first microprocessor wired connection.Vehicle-mounted camera and range only radar can send to first microprocessor by the range information between vehicle and obstacle, first microprocessor sends to the second microprocessor by this range information again, the second microprocessor calculates distance according to this range information, and send control information to first microprocessor, first microprocessor changes into the control command to phonetic alarm and accel control by control information, thereby control phonetic alarm and accel control are done corresponding actions.
Described sensor also comprises infrared detector, vibration detector, and described controller also comprises burglar alarm, and described infrared detector, vibration detector and burglar alarm are all by I/O port and first microprocessor wired connection; When vehicle is during in anti-theft state, if detecting, infrared detector on vehicle, has people, or vibration detector detects vehicle to be had in the situation of vibration, send a signal to the first bit processor, the first bit processor starts burglar alarm, and signal is transferred to the second microprocessor, the second microprocessor is according to being stored in sensor number in data bank and the signal of transmission, generate note message, and then sending to first microprocessor, first microprocessor sends to vehicle administration office by note message by GSM/GPRS module.
Described sensor also comprises that tire pressure detector, described controller also comprise over pressure alarm device and air pressure adjustment controller, and described tire pressure detector, over pressure alarm device and air pressure adjustment controller are all by I/O port and the first bit processor wired connection; Tire pressure detector detects tire pressure, and tire pressure signal is transferred to the first bit processor, first microprocessor is transferred to the second microprocessor by tire pressure signal, the 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 over pressure alarm device and air pressure adjustment controller by control information, thereby control over pressure alarm device and air pressure adjustment controller are done corresponding actions.
Described embedded car interconnection device also comprises detachable recording instrument, and described detachable recording instrument is connected with the second microprocessor.The data logging that this recording instrument can be controlled the vehicle in Vehicle Driving Cycle process and travel is got off, and has the function of black box.
Another solution of the present invention is to provide 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:
As shown in Figure 2 and Figure 3: wherein monitor message data transmission method from bottom to top includes following steps:
(1), by the number information of each sensor, controller and the number information of embedded car interconnection device be stored in the data bank in the second microprocessor;
(2), by sensor generating monitoring information, and pass through the wire transmission of I/O port to first microprocessor, in the present embodiment, be to make sensor be connected and transfer to first microprocessor with I/O ports-Extending module by copper core three tree laces, now monitor message is level signal, monitor message is processed the digital signal converting to sensor coding through first microprocessor, first microprocessor is checked and is confirmed that whether digital signal is correct, if correctly by this string digital data transmission to the second microprocessor, in the present embodiment, first microprocessor communicates digital data transmission to the second microprocessor by RS485 module and the second microprocessor, if mal returns, first microprocessor is when receiving monitor message, if desired controller is controlled, directly sending control command to control by control device by controller to controller.
(3), the second microprocessor receives after this string digital signal, the 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 data bank and sensor number information and be transferred to first microprocessor, the second microprocessor by RS232 module by this data transmission to first microprocessor.Now digital signal is through converting message signals to.
(4), first microprocessor will comprise that the signal that message signals and user register phone number sends to GSM/GPRS module, is then dealt into user by message note signal by mobile radio communication through GSM/GPRS module and registers mobile phone or vehicle administration office's monitoring and control centre.
As shown in Figure 4, Figure 5: the top-down control method of user comprises the following steps:
(1), user mobile phone sends the note that contains control command, and by mobile communication public network, send in the GSM/GPRS module of embedded car interconnection device, the control command that described user mobile phone sends is set of number information, comprising controller number information and control information;
(2), GSM/GPRS module receives the control command that user mobile phone sends, by first microprocessor, transfer to the second microprocessor, first microprocessor can judge that whether control command is correct, if be correctly transferred to the second microprocessor, if mal does not transmit, then according to the number information that is stored in each controller in data bank, user's login coding, password, phone number judgement control command is which controller of whereabouts specifically, if the control command that user mobile phone sends cannot inquire corresponding controller in data bank, control unsuccessfully, finish, if success, enter next step, now note signal converts control signal to.
(3), the second microprocessor by control command specifically data which controller of whereabouts and control command itself send to first microprocessor, and the data of control command and which controller of whereabouts thereof are stored in the data bank of the second microprocessor;
(4), first microprocessor controls by wire transmission mode the corresponding controller of control command that user mobile phone sends; First microprocessor is checked this control command, if correct, controller is controlled, if mal returns;
(5) if control successfully, controller can start operation, and this Time Controller can generate the return information of " controlling successfully ", and the successful return information of described control passes through monitor message data transmission method from bottom to top to user mobile phone; If embedded car interconnection device does not receive controller and controls successful information, embedded car interconnection device can generate one and control failed return information, and the return information of described control failure is to be generated and transferred on user mobile phone from bottom to top by GSM/GPRS module by first microprocessor.
The embedded car interconnection device of the present invention and communication control method thereof adopt following four kinds of technology to stop the terminal that hacker enters car networking:
1) there is no the communication technology of the terminal of wireless communication module; The communication technology of the described terminal that there is no wireless communication module, refers to all terminals, comprises sensor, the control apparatus of all Information Monitorings, do not establish wireless signal transmitting module and coder on the control actr of facility.
2) null terminator Null node communication data reduction technology; Described null terminator Null node communication data reduction technology, comprised that the sensor of Information Monitoring on all I/O of being connected to ports of terminal is, the node code name of the n of controller I/O port is all compressed in same embedded car interconnection device, each I/O port all arranges cognizance code.
3) server data conversion release tech; Described server data conversion release tech, it can be divided into two kinds of data transfer delivery modes of upward signal and downgoing signal:
The first is that upward signal data transfer delivery mode (is shown in Fig. 2, Fig. 3), upward signal is pilot signal, end instr on the collector that certain I/O port connects becomes high trigger signal by the information collecting after amplifying circuit amplifies, this level signal can enter into first microprocessor through I/O port and ports-Extending module, then through microprocessor, confirm after (whether flase alarm) processes whether decision signal lets pass, if "No" signal uplink is just stopped, (see that vector arrow in Fig. 2 represents the trend of digital signal) if that "Yes" signal can continue is up and enter into the second microprocessor through 485 interfaces, whether the second microprocessor at this moment can require according to write software program check signal through the inferior confirmation of n level, as "No" signal can temporarily stop up, wait for while reaching how much levels of n time after the stack of next signal and (during how much levels of n described here time, to refer to when different sensors collects information of the same type when there is fire alarm by cigarette sense, infrared, pyrostat confirms that with sending within a certain period of time signal fire alarm sets up) at this moment the second microprocessor can determine signal to send to data bank, now data bank still sends to the second microprocessor after digital signal can being converted to message signals, the transmission object that now the second microprocessor can determine message signals is (as fire alarm sends to 119, theft alarm sends to 110), then signal enters the first microprocessor of car internet base station through 232 interfaces, now first microprocessor can send message signals Fen Er road according to the software program writing, wherein riches all the way gives GSM/GPRS module, by GSM/GPRS module, convert message signals to note letter signal and send to the high-end unit of dealing with emergencies and dangerous situations and user mobile phone by GPRS/GSM/CDMA movable signal net.Another road signal converts controller that the execution instruction of digital signal is connected with copper core three tree laces through I/O port to being implemented to control by control device (valve that disappears as opened, open spray etc.) after first microprocessor.
The second is that downgoing signal data transfer delivery mode (is shown in Fig. 4, Fig. 5), downgoing signal is control signal, by high-end communications facility, (to comprise the mobile phone that networking was registered through car by high-end user, wireless fixed telephone, computer with 3G network interface card) send with base code, code, data transmission during the downlink short message signal of information code name, conversion, dispose procedure (is shown in Fig. 4, Fig. 5), when high-end user sends with base code to car internet base station by registration mobile phone, code, after the note signal of the SIM card number of the GSM/GPRS module of information code name and base station sends, GPRS/GSM/CDMA mobile radio communication can be sent to note in the GSM/GPRS module of car internet base station rapidly, then note signal enters first microprocessor along the vector arrow of black in Fig. 4, now note signal is examined and confirms that high-end user institute give a signal is "Yes" or "No" through microprocessor processes, as the "No" signal end of transmission, as being about to note signal, "Yes" converts in control signal sends to vehicle-mounted computer the second microprocessor by 485 transmission routes (the vector arrow of Fig. 4 represents the trend of note signal), then through microprocessor, again examine and confirm "Yes" or "No", as "Yes" sends to data bank by control signal, by data bank, convert control signal to digital executive signal and send to first microprocessor by 232 transmission routes, by first microprocessor, convert executive signal to execution instruction again and send to I/O port, then through copper core three tree laces, execution instruction being passed to controller goes directly to control by control device.
4) car internet base station data recovery technology; Described car internet base station data recovery technology, refers to that data bank moves conversion, the dispose procedure of word → code name or code name → word.Explain that theoretically up letter is by code name → word, code name is recovered to word; Downgoing signal is by word → code name,
Database is that to take I/O port code name be fundamental point, each I/O port code name is corresponding a child node in the data bank of server, and each code name has one group of message identical with child node feature content, these message statements, word can require to write at any time adjustment in vehicle-mounted computer window according to user oneself, after confirming, are stored in data bank.Before the content of the release signal of data bank, all hat has I/O port code name, while therefore connecting without child node, in data bank, must inscribe the word of " eating dishes without rice or wine " or " standby " under certain I/O port, otherwise car internet base station can be as child node fault alarm when self check.
The car of group certainly (thing) networking consisting of these four kinds of technology, this has just prevented the generation of the series of problems described in background technology effectively.
Claims (1)
1. the communication of embedded car interconnection device and a control method, 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), the number information of the number information of each sensor, controller and embedded car interconnection device is stored in the data bank in the second microprocessor;
(2), by sensor generating monitoring information, and by the wire transmission of I/O port to first microprocessor, monitor message is processed the digital signal convert to sensor coding through first microprocessor, then in this string digital data transmission to the second microprocessor,
(3), the 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 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 GSM/GPRS module, is then dealt into user by message note signal by mobile radio communication through GSM/GPRS module and registers mobile phone or vehicle administration office's monitoring and control centre;
The top-down control method of user comprises the following steps:
(1), user mobile phone sends the note that contains control command, and by mobile communication public network, send in the GSM/GPRS module of embedded car interconnection device, the control command that described user mobile phone sends is set of number information, comprising controller number information and control information;
(2), GSM/GPRS module receives the control command that user mobile phone sends, by first microprocessor, transfer to the second microprocessor, then according to the number information that is stored in each controller in data bank, user's login coding, password, phone number judgement control command be which controller of whereabouts specifically, if the control command that user mobile phone sends cannot inquire corresponding controller in data bank, control unsuccessfully, finish, if success enters next step;
(3), first microprocessor by control command specifically data which controller of whereabouts and control command itself send to the second microprocessor, and the data of control command and which controller of whereabouts thereof are stored in the data bank of the second microprocessor;
(4), first microprocessor controls by wire transmission mode the corresponding controller of control command that user mobile phone sends;
(5) if control successfully, controller can start operation, and this Time Controller can generate the return information of " controlling successfully ", and the successful return information of described control passes through monitor message data transmission method from bottom to top to user mobile phone; If embedded car interconnection device does not receive controller and controls successful information, embedded car interconnection device can generate one and control failed return information, and the return information of described control failure is to be generated and transferred on user mobile phone from bottom to top by GSM/GPRS module by first microprocessor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210134207.9A CN102642509B (en) | 2012-04-18 | 2012-04-18 | Embedding vehicle networking device and communication control method thereof |
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| CN201210134207.9A CN102642509B (en) | 2012-04-18 | 2012-04-18 | Embedding vehicle networking device and communication control method thereof |
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| CN102891885A (en) * | 2012-09-13 | 2013-01-23 | 南昌大学 | Device for remotely controlling automobile by mobile phone and control method |
| CN103679838A (en) * | 2012-09-20 | 2014-03-26 | 上海科沁机电有限公司 | Vehicle monitoring system and method |
| CN104574877A (en) * | 2015-01-15 | 2015-04-29 | 龙文凯 | Vehicle-mounted alarming system based on internet of things |
| CN104898513A (en) * | 2015-05-02 | 2015-09-09 | 田慧峰 | Wireless signal transmission type automatic control system |
| CN105705382A (en) * | 2016-01-31 | 2016-06-22 | 冯旋宇 | Method and system for safety alerts of vehicle |
| CN106339652A (en) * | 2016-08-26 | 2017-01-18 | 中国重汽集团济南动力有限公司 | RFID (radio frequency identification) device for internet-of-vehicle terminal |
| CN108322488A (en) * | 2017-01-16 | 2018-07-24 | 广州市联奥信息科技有限公司 | The system that trust data is shared and distributes is realized in multiple car networkings |
| CN107948267A (en) * | 2017-11-17 | 2018-04-20 | 成都正光恒电子科技有限责任公司 | A kind of car networking and logistics Internet of things device |
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