CN102572152A - Vehicle-mounted system and bidirectional communication method - Google Patents
Vehicle-mounted system and bidirectional communication method Download PDFInfo
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- CN102572152A CN102572152A CN2011104368663A CN201110436866A CN102572152A CN 102572152 A CN102572152 A CN 102572152A CN 2011104368663 A CN2011104368663 A CN 2011104368663A CN 201110436866 A CN201110436866 A CN 201110436866A CN 102572152 A CN102572152 A CN 102572152A
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Abstract
The invention provides a vehicle-mounted system and a bidirectional communication method. The vehicle-mounted system comprises vehicle-mounted equipment and an intelligent mobile phone, and realizes direct communication between the vehicle-mounted equipment and the intelligent mobile phone by adopting a WiFi (Wireless Fidelity)/Bluetooth technology. The vehicle-mounted system also comprises a portable card, and the vehicle-mounted equipment indirectly communicates with the intelligent mobile phone by a low-power RF (radio frequency) communication technology via the portable card. The vehicle-mounted system provided by the invention also can realize switching between the WiFi/Bluetooth communication mode and the RF communication mode; when a user is closer to a car, the vehicle-mounted equipment directly communicates with the intelligent mobile phone, and the portable card is in a sleeping state; when the user is farther away from the car and the vehicle-mounted equipment cannot detect a WiFi/Bluetooth signal, the vehicle-mounted equipment is activated to connect with the RF of the portable card, and the portable card is notified to establish a connection with the WiFi/Bluetooth of the intelligent mobile phone at the same time, so that bidirectional communication of the vehicle-mounted equipment and the intelligent mobile phone is realized. According to the vehicle-mounted system provided by the invention, a rich man-machine interface and powerful service functions which are difficultly realized by a REK (remote electronics kit) are provided by using an intelligent mobile phone.
Description
Technical field
The present invention relates to automotive field, relate in particular to a kind of onboard system and two-way communication.
Background technology
(Remote Keyless Entry RKE) for the configuration of automobile, as a kind of standard configuration, becomes the indispensable part of automobile to the remote control keyless door guard system.REK is made up of a reception controller and a remote controller that is carried by the user that is installed on the automobile; The user through press remote controller buttons can realize straightening one out and easing out his anxiety lock, receive to report to the police, light function such as car light, the some of them system can realize that also remote-control car starts and automobile searching function.But RKE equipment lacks enough man-machine interfaces and system processing power, can not provide kind abundant and powerful service.
Summary of the invention
In view of this, the invention provides a kind of onboard system and two-way communication, be used to solve RKE and lack enough man-machine interfaces and system processing power, can not provide kind abundant and powerful service.Its technical scheme is following:
A kind of onboard system comprises: mobile unit and smart mobile phone;
Said mobile unit is used to obtain the vehicle condition data, sets up to be connected with the radio communication of said smart mobile phone, and said vehicle condition data are sent to said smart mobile phone; Said smart mobile phone is used to receive said vehicle condition data, and automobile is kept watch on, controlled;
Said smart mobile phone also is used to set up with the radio communication of said mobile unit and is connected, and sends control data to said mobile unit; Said mobile unit also is used to receive said control data, and sends said control data to automobile to realize the control to automobile.
Further, said mobile unit links to each other with vehicle body through the CAN bus, and said smart mobile phone has the WiFi/ blue tooth interface; Said mobile unit comprises: CAN module, a WiFi/ bluetooth module, first processor, first memory module and first power supply;
Said CAN module is used for obtaining the vehicle condition data and said vehicle condition data parsing being become to be fit to the data that said first processor is handled through the CAN bus; Said first processor is used for data transaction after the said CAN module parses for being fit to the data that a WiFi/ bluetooth module sends; A said WiFi/ bluetooth module is used to set up being connected of said mobile unit and said smart mobile phone, and the data after said first processor is handled send to said smart mobile phone; Said smart mobile phone is used to receive the data that a said WiFi/ bluetooth module sends;
Said smart mobile phone also is used for sending control data to a said WiFi/ bluetooth module; A said WiFi/ bluetooth module also is used to receive said control data; Said first processor also is used to handle the data that a said WiFi/ bluetooth module receives; Said CAN module, the data transaction that also is used for said first processor is handled is the data that are fit to the CAN bus transfer, and the data after will changing send automobile to through said CAN bus;
Said first processor also is used for data sync, keeps the various states of system and the renewal of significant variable; Said first memory module is used to store user's identity information and various configuration information; Said first power supply is used for each module for power supply to said mobile unit.
Further, said mobile unit links to each other with vehicle body through the CAN bus, and onboard system of living in also comprises: portable cards; Said smart mobile phone has the WiFi/ blue tooth interface;
Said mobile unit comprises: CAN module, a RF module, first processor, first memory module and first power supply;
Said portable cards comprises: the 2nd RF module, WiFi/ bluetooth module, second processor, second memory module, human-computer interaction module and second source;
Said CAN module is used for obtaining the vehicle condition data and said vehicle condition data parsing being become to be fit to the data that said first processor is handled through the CAN bus; Said first processor is used for data transaction after the said CAN module parses for being fit to the data that a RF module is sent; A said RF module is used to set up being connected of said mobile unit and said portable cards, and the data after said first processor is handled send to said portable cards; Said the 2nd RF module of said portable cards is used to receive the data that a said RF module is sent; Said second processor, the data transaction that is used for said the 2nd RF module is received becomes to be fit to the data that the WiFi/ bluetooth module sends; Said WiFi/ bluetooth module is used to set up being connected of said portable cards and said smart mobile phone, and the data of said second processor processes are sent to said smart mobile phone; Said smart mobile phone also is used to receive the data that said WiFi/ bluetooth module sends;
Said smart mobile phone also is used for sending data to said WiFi/ bluetooth module; Said WiFi/ bluetooth module also is used to receive the control data that said smart mobile phone sends; Said second processor, the data transaction that also is used for said WiFi/ bluetooth module is received is for being fit to the data that said the 2nd RF module is sent; Said the 2nd RF module also is used for the data after said second processor processes are sent to a RF module of said mobile unit; A said RF module also is used to receive the data that the 2nd RF module of said portable cards is sent; Said first processor also is used to handle the data that a said RF module receives; Said CAN module is used for that also said first processor is handled the back data transaction and sends automobile to for the data of suitable CAN bus transfer and through the CAN bus;
Said first processor also is used for data sync, keeps the various states of system and the renewal of significant variable; Said first memory module is used to store user's identity information and various configuration information; Said first power supply is used for each module for power supply to said mobile unit; Said second processor also is used for data sync, keeps the various states of system; Said second memory module is used to store user's identity information and configuration information; Said second source is used for each module for power supply to said portable cards; Said human-computer interaction module is used to provide man-machine interface.
Further, described onboard system also comprises portable cards; Said mobile unit also comprises a RF module, and a said RF module is used for when detecting less than the WiFi/ Bluetooth signal, sets up being connected of said mobile unit and said portable cards, and the data after the said first processor processing are sent to said portable cards;
Said portable cards comprises: the 2nd RF module, the 2nd WiFi/ bluetooth module, second processor, second memory module, human-computer interaction module and second source;
Said the 2nd RF module is used to receive the data that a said RF module is sent; Said second processor, the data transaction that is used for said the 2nd RF module is received becomes to be fit to the data that the 2nd WiFi/ bluetooth module sends; Said the 2nd WiFi/ bluetooth module is used to set up being connected of said portable cards and said smart mobile phone, and the data of said second processor processes are sent to said smart mobile phone; Said smart mobile phone also is used to receive the data that said the 2nd WiFi/ bluetooth module sends;
Said smart mobile phone also is used for sending data to said the 2nd WiFi/ bluetooth module; Said the 2nd WiFi/ bluetooth module also is used to receive the control data that said smart mobile phone sends;
Said second processor, the data transaction that also is used for said the 2nd WiFi/ bluetooth module is received is for being fit to the data that said the 2nd RF module is sent; Said the 2nd RF module also is used for the data after said second processor processes are sent to a RF module of said mobile unit; A said RF module also is used to receive the data that the 2nd RF module of said portable cards is sent; Said first processor also is used to handle the data that a said RF module receives; Said CAN module is used for that also said first processor is handled the back data transaction and sends automobile to for the data of suitable CAN bus transfer and through the CAN bus;
Said second processor also is used for data sync, keeps the various states of system; Said second memory module is used to store user's identity information and configuration information; Said second source is used for each module for power supply to said portable cards; Said human-computer interaction module is used to provide man-machine interface.
Two-way communication between a kind of mobile unit and the smart mobile phone, this method comprises:
When mobile unit when smart mobile phone sends the vehicle condition data:
Obtain the vehicle condition data; Set up and be connected with the radio communication of said smart mobile phone; Send said vehicle condition data to said smart mobile phone, said smart mobile phone receives said vehicle condition data;
When smart mobile phone when mobile unit sends control data:
Set up and be connected with the radio communication of mobile unit; Send control data to said mobile unit, said mobile unit receives said control data and sends control data to automobile to realize the control to automobile.
Said radio communication is connected to the WiFi/ bluetooth and connects.
Said radio communication is connected to the RF connection and is connected with the WiFi/ bluetooth; Said RF is connected to being connected between said mobile unit and the said portable cards; Said WiFi/ bluetooth is connected to being connected of said portable cards and said smart mobile phone; At this moment, send said vehicle condition data to said smart mobile phone and be specially: send said vehicle condition data to said portable cards, said portable cards sends to said smart mobile phone with said automobile control data again; Sending control data to said mobile unit is specially: send control data to said portable cards, portable cards sends to said mobile unit with said control data again.
When said mobile unit detects the WiFi/ Bluetooth signal, said radio communication is connected to the WiFi/ bluetooth and connects; When said mobile unit detects less than the WiFi/ Bluetooth signal; Said radio communication is connected to the RF connection and is connected with the WiFi/ bluetooth; Said RF is connected to being connected between said mobile unit and the said portable cards; Said WiFi/ bluetooth is connected to being connected of said portable cards and said smart mobile phone; At this moment, send said vehicle condition data to said smart mobile phone and be specially: send said vehicle condition data to said portable cards, said portable cards sends to said smart mobile phone with said automobile control data again; Sending control data to said mobile unit is specially: send control data to said portable cards, portable cards sends to said mobile unit with said control data again.
In onboard system provided by the invention and the two-way communication; Set up being connected of mobile unit and smart mobile phone directly or indirectly through WiFi/ bluetooth and/or RF; Realize the transmission of data; Because smart mobile phone has good man-machine interaction interface and powerful service, therefore, can realize the functions such as telemonitoring, control, diagnosis and software upgrading to mobile unit through smart mobile phone.In addition, because the coverage that the WiFi/ bluetooth is covered is limited, therefore onboard system provided by the invention has adopted the RF module, through the RF communication technology, has expanded the unapproachable communication distance of WiFi/ bluetooth.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is embodiments of the invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
The structural representation of the onboard system that Fig. 1 provides for the embodiment of the invention one;
The structural representation of mobile unit in the onboard system that Fig. 2 provides for the embodiment of the invention one;
The software protocol stack sketch map of the onboard system that Fig. 3 provides for the embodiment of the invention one;
The structural representation of the onboard system that Fig. 4 provides for the embodiment of the invention two;
The structural representation of the mobile unit in the onboard system that Fig. 5 provides for the embodiment of the invention two;
The structural representation of the portable cards in the onboard system that Fig. 6 provides for the embodiment of the invention two;
The software protocol stack sketch map of the onboard system that Fig. 7 provides for the embodiment of the invention two;
The structural representation of the onboard system that Fig. 8 provides for the embodiment of the invention three;
The structural representation of the mobile unit in the onboard system that Fig. 9 provides for the embodiment of the invention three;
The structural representation of the portable cards in the onboard system that Figure 10 provides for the embodiment of the invention three;
The communication distance sketch map of the onboard system that Figure 11 provides for the embodiment of the invention three;
The switching sketch map of the communication mode of the onboard system that Figure 12 provides for the embodiment of the invention three;
The switching sketch map of the communication mode of the onboard system that Figure 13 provides for the embodiment of the invention three;
The software protocol stack sketch map of the onboard system that Figure 14 provides for the embodiment of the invention three.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
The embodiment of the invention one provides a kind of onboard system; Fig. 1 is the structural representation of this onboard system, and the onboard system that the embodiment of the invention provides comprises mobile unit 11 and smart mobile phone 12, wherein; Smart mobile phone 12 has the WiFi/ blue tooth interface, and mobile unit has the WiFi/ function of Bluetooth communication.The onboard system that the embodiment of the invention one provides adopts WiFi/ Bluetooth communication mode to realize the direct and two-way communication between mobile unit 11 and the smart mobile phone 12.
Fig. 2 is the structural representation of mobile unit 11 in the onboard system of Fig. 1, and the mobile unit 11 among Fig. 2 comprises: CAN module 21, first processor 22, a WiFi/ bluetooth module 23, first memory module 24 and first power supply 25.Wherein, the CAN module is connected with CAN bus 20 on the automobile, is used to receive the data of CAN bus 20, and the data parsing of the CAN bus 20 that receives is become to be fit to the data that first processor 22 is handled; First processor 22 is used for the data of CAN module parses are handled, and the data transaction of CAN module parses is organized bag, verification, filtration etc. for being fit to the data that a WiFi/ bluetooth module 23 sends, comprising; The one WiFi/ bluetooth module 23 is used to set up and being connected of smart mobile phone, and the data after first processor 22 is handled send to smart mobile phone.
The user can utilize smart mobile phone downloading application software on Internet; This application software can realize automobile carried out functions such as remote monitoring, control, diagnosis and software upgrading; The user can select corresponding control information that automobile is carried out control corresponding through the operation interface of smart mobile phone; The data that mobile unit sends can show on mobile phone interface that also the user utilizes smart mobile phone can understand the state of automobile in real time.
When smart mobile phone when mobile unit sends data, to the mobile unit sending controling instruction, a WiFi/ bluetooth module 23 is used to receive the data that smart mobile phone sends like smart mobile phone; First processor 22 is used to handle the data that a WiFi/ bluetooth module 23 receives; CAN module 21 be used for the data transaction that a WiFi/ bluetooth module 23 receives is become to be fit to the data that CAN bus 20 is transmitted, and the data after will changing sends automobile to through said CAN bus 20.
Further; First processor 22; Also be used for data sync, keep the various states of system and the renewal of significant variable, wherein, data sync is meant that the state information with the mobile unit on the CAN bus 20 is synchronized on the smart mobile phone; Perhaps demonstration on the smart mobile phone and control information are synchronized on the CAN bus, system mode refers to state, the vehicle interior temperature of the lighting/extinguish of the locking of car door/release, car light, warning device, the information such as dump energy of automobile batteries.
The system that present embodiment provides also comprises first memory module 24 and first power supply 25; First memory module 24 is used to store user's identity information and various configuration information, and wherein, storage user's identity information is with authentication; First power supply 25 is used for each module for power supply to mobile unit.In the present embodiment, first power supply 55 is independent working powers of installing, and this working power is charged through the power-supply system of automobile.
What the software protocol stack of the onboard system that Fig. 3 provides for the embodiment of the invention one, Fig. 3 provided is the software protocol stack of WiFi communication mode, when adopting the Bluetooth communication mode, and the corresponding bluetooth protocol repertory that replaces with of 802.11 among the figure with the ICP/IP protocol stack.
Further, the system that provides of the embodiment of the invention encrypts through rolling code and AES and ensures communication safety.
The method that the embodiment of the invention also provides a kind of mobile unit and smart mobile phone to carry out two-way communication, this method comprises:
When mobile unit during to the smart mobile phone status data:
S11: obtain the vehicle condition data;
S12: foundation is connected with the radio communication of smart mobile phone;
S13: send the vehicle condition data to smart mobile phone, smart mobile phone receives the vehicle condition data.
When smart mobile phone when mobile unit sends control data:
S21: foundation is connected with the radio communication of mobile unit;
S22: send control data to mobile unit, mobile unit receives control data and sends control data to automobile to realize the control to automobile.
In the present embodiment, mobile unit is connected to the WiFi/ bluetooth with the radio communication of smart mobile phone and is connected.
The embodiment of the invention one provides in the system and method; Mobile unit carries out self-organizing through WiFi/ bluetooth and smart mobile phone and is connected; Can realize diversified service through smart mobile phone; Like telemonitoring, control, diagnosis and software upgrading etc., smart mobile phone provides the good man-machine interaction interface simultaneously.In addition, this system has realized the two-way communication of mobile unit and smart mobile phone, and mobile unit can send data to smart mobile phone, and smart mobile phone also can send data to mobile unit.
Embodiment two
The embodiment of the invention two provides a kind of onboard system; Fig. 4 is the structural representation of this onboard system; Comprise: mobile unit 41, portable cards 42 and smart mobile phone 43; This system adopts the RF communication technology to set up being connected of mobile unit 41 and portable cards 42, sets up being connected of portable cards 42 and smart mobile phone 43 through the WiFi/ Bluetooth technology, thus the indirect two-way communication of realization mobile unit 41 and smart mobile phone 43.
Fig. 5 is the structural representation of mobile unit 41 among Fig. 4, comprising: CAN module 51, first processor 52, a RF module 53.Wherein, CAN module 51 is connected with CAN bus 50 on the automobile, is used to receive the data of CAN bus 50, and the data parsing of the CAN bus 50 that receives is become to be fit to the data that first processor 52 is handled; First processor 52 is used for the data of CAN module parses are handled, like group bag, verification, filtration etc.; The one RF module 53 is used to set up and being connected of portable cards 42, and the data after first processor 52 is handled send to portable cards 42.
Fig. 6 is the structural representation of portable cards 42 among Fig. 4, comprising: the 2nd RF module 61, WiFi/ bluetooth module 62, second processor 63, human-computer interaction module 64.Wherein, the 2nd RF module 61, the data after the first processor 52 that is used to receive mobile unit is handled; Second processor 63 is used for the data that the 2nd RF module 61 receives are handled, and be specially: the data to the 2nd RF module 61 receives are resolved, and the data set bag after resolving is formed the TCP frame, and the data that are about to RF communication transfer the TCP/IP data on the WiFi to; WiFi/ bluetooth module 62, the data after being used for second processor 63 handled send to smart mobile phone according to 802.11 form, and smart mobile phone receives these data, handles accordingly according to these data.
When smart mobile phone when mobile unit sends data, the WiFi/ bluetooth module 62 of portable cards is used to receive these data; Second processor 63 is used for the data that WiFi/ bluetooth module 62 receives are handled, with the data of this data transaction for 61 transmissions of suitable the 2nd RF module; The 2nd RF module 61; Be used for the data after 63 processing of second processor are sent to a RF module 53, the one RF modules 53 of mobile unit, be used to receive these data; First processor 52; Be used for the data that a RF module 53 receives are handled, CAN module 51 is used for the data transaction after first processor 52 processing is become to be fit to the data of CAN bus 50 transmission and sends these data to automobile through the CAN bus.
Further, the first processor 52 of mobile unit also is used for data sync, keeps the various states of system and the renewal of significant variable; Second processor 63 of portable cards also is used for data sync, keeps the various states of system.The mobile unit that the embodiment of the invention two provides also comprises: first memory module 54 and first power supply 55; Portable cards also comprises: second memory 65 and second source 66.First memory 54 is used to store user's identity information and configuration information, and first power supply 55 is used for each module for power supply to mobile unit; Second memory 65 is used to store user's identity information and configuration information; Second source is used for each module for power supply to portable cards 42.
The software protocol stack of the onboard system that Fig. 7 provides for the embodiment of the invention two, 802.11 among Fig. 7 is the software protocol stack of WIFI communication mode with the ICP/IP protocol stack, when adopting the Bluetooth communication mode, the corresponding bluetooth protocol repertory that replaces with.RF transport layer among Fig. 7 realizes the reliable connection of link, and RF DLL layer is realized the management and the safety of connection-oriented link.
The onboard system that the embodiment of the invention provides adopts the small-power RF communication mode realization mobile unit of 433MHz or 892MHz frequency range and communicating by letter of smart mobile phone; Wherein the portable cards in the system is carried by the user, realizes one by the communicate by letter gateway function of local bluetooth or WiFi conversion of small-power RF.
The embodiment of the invention also provides a kind of mobile unit smart mobile phone to carry out the method for two-way communication, and this method comprises:
When mobile unit when smart mobile phone sends control data:
S31: obtain the vehicle condition data;
S32: foundation is connected with the RF of portable cards, sets up portable cards and is connected with the WiFi/ bluetooth of smart mobile phone;
S33: send the vehicle condition data to portable cards, portable cards sends to smart mobile phone with the vehicle condition data, and smart mobile phone receives these vehicle condition data.
When smart mobile phone when mobile unit sends control data:
S41: foundation is connected with the WiFi/ bluetooth of portable cards, sets up portable cards and is connected with the RF of mobile unit;
S42: send control data to portable cards, portable cards sends to mobile unit with control data, and mobile unit receives control data and sends control data to automobile to realize the control to automobile.
In the system and method that the embodiment of the invention two provides, mobile unit carries out two-way communication through portable cards and smart mobile phone, and smart mobile phone provides abundant man-machine interface and powerful service.In addition; Because portable cards can realize communicating by letter with the RF of mobile unit, portable cards has the WiFi/ Bluetooth function simultaneously, therefore; Can realize and the WiFi/ Bluetooth communication of smart mobile phone, adopt the RF technology can realize the telecommunication of mobile unit and smart mobile phone through portable cards.
Embodiment three
The embodiment of the invention three provides a kind of onboard system; Fig. 8 is the structural representation of this onboard system; Comprise: mobile unit 81, portable cards 82 and smart mobile phone 83; This system both can adopt the bluetooth/WiFi communication technology to realize direct and two-way communication the between mobile unit 81 and the smart mobile phone 83, can adopt the small-power RF communication technology through the indirect two-way communication between portable cards 82 realization mobile units 81 and the smart mobile phone 83 again, and can be implemented between two kinds of communication modes and switch.
Fig. 9 is the structural representation of mobile unit 81 among Fig. 8, comprising: CAN module 91, first processor 92, a WiFi/ bluetooth module 93, a RF module 94, first memory module 95 and first power supply 96.Figure 10 is the structural representation of portable cards 82 among Fig. 8, comprising: the 2nd RF module 101, the 2nd WiFi/ bluetooth module 102, second processor 103, human-computer interaction module 104, second memory 105 and second source 106.
In the system that the embodiment of the invention provides; When adopting the WiFi/ Bluetooth Communication Technology to realize direct and two-way communication the between mobile unit 81 and the smart mobile phone 83; Portable cards is in sleep state, only keeps minimum necessary handshake communication, at this moment; This system is the same with the system that embodiment one provides, and the function of each module is identical with the function of corresponding module among the embodiment one; When adopting the small-power RF communication technology through the indirect two-way communication between portable cards 82 realization mobile units 81 and the smart mobile phone 83; This system is the same with the system that embodiment two provides; The function of each module is identical with the function of two kinds of corresponding modules of embodiment; Wherein, the 2nd WiFi/ bluetooth module 102 of portable cards is equivalent to the WiFi/ bluetooth module 62 in the portable cards that embodiment two provides.
The system that the embodiment of the invention provides can realize between above-mentioned WiFi/ bluetooth and two kinds of communication modes of RF, switching automatically according to the electric weight situation of communication quality and portable cards.Usually, the user with portable cards and smart mobile phone be positioned over handbag or on one's body, when the user when automobile is very near, mobile unit is directly communicated by letter with smart mobile phone, at this moment, portable cards is in sleep state, to reduce power consumption and battery life; When the user when automobile is far away, mobile unit at first is connected with portable cards, communicates by letter with smart mobile phone through the gateway function of portable cards then again.
Figure 11 is the communication distance sketch map of system.Suppose to be the center with the car, radius is in the regional Z1 of R1, and user's smart mobile phone can directly carry out the WiFi/ Bluetooth communication with mobile unit, and this moment, portable cards was in sleep state, only keeps minimum necessary handshake communication; Suppose to be the center with the car; Radius is greater than in the regional Z2 of R1 less than R2, and the user is in the communication range that exceeds the WiFi/ bluetooth, at this moment; Use portable cards to carry out " relaying " as " relay station "; Realizing communicating by letter of smart mobile phone and mobile unit, is that center, radius are the zone of R1 as long as smart mobile phone is positioned at the portable cards, and the user just can normally enjoy service.If portable cards is in the outermost in Z2 zone, smart mobile phone is positioned on the extended line of vehicle and portable cards simultaneously, and can obtain maximum communication distance R1+R2 this moment.
The process that the onboard system that introducing the embodiment of the invention below provides switches under communication mode.Figure 12 is the communication mode handoff procedure sketch map that the Z2 zone of user from Figure 11 gets into the Z1 zone, and handoff procedure is following:
S121-S122: the user is in Z2 when zone, for RF is connected, is connected for the WiFi/ bluetooth between portable cards and the smart mobile phone between mobile unit and the portable cards;
S123: when the user got into the Z1 zone from Z2 zone, mobile unit detected the WiFi/ Bluetooth signal of smart mobile phone, if detect, then request is set up and being connected of smart mobile phone;
Wherein, if mobile unit uses WiFi communication, mobile unit will be a focus AP so; According to IEEE802.11, it will continue outwards to send periodically the broadcast packet that has self-ID information, also wait for replying of remote equipment simultaneously; If the smart mobile phone of band WiFi receives this broadcast packet, and is the object that once connected into merits and demerits, or receive when the user connects request; To reply this broadcast packet; At this moment, mobile unit is thought the WiFi that detects smart mobile phone, and bluetooth is like this equally.
S124: mobile unit and smart mobile phone connect;
S125-S126: smart mobile phone breaks off and being connected of portable cards, and the portable cards entering sleep state of communicating by letter with the RF of mobile unit only keeps the handshake communication of minimum necessity.
Figure 13 is the communication mode handoff procedure sketch map that the Z1 zone of user from Figure 11 gets into the Z2 zone, and the user is connected for the WiFi/ bluetooth between mobile unit and the smart mobile phone when the Z1 zone; Handoff procedure is following:
S131: when the user gets into the Z2 zone from Z1 zone, mobile unit detect with smart mobile phone between the WiFi/ bluetooth be connected and lose;
S132: mobile unit activates and is connected with the small-power RF of portable cards;
S133: portable cards is set up the WiFi/ bluetooth with smart mobile phone.
The software protocol stack of the onboard system that Figure 14 provides for the embodiment of the invention three, 802.11 among Figure 14 is the software protocol stack of WiFi communication mode with the ICP/IP protocol stack, when adopting the Bluetooth communication mode, the corresponding bluetooth protocol repertory that replaces with.RF transport layer among Fig. 7 realizes the reliable connection of link, and RF DLL layer is realized the management and the safety of connection-oriented link.
The method that the embodiment of the invention also provides a kind of mobile unit and smart mobile phone to carry out two-way communication, this method comprises:
When mobile unit when smart mobile phone sends the vehicle condition data:
S51: obtain the vehicle condition data;
S52: judge whether to detect bluetooth/WiFi signal, if then set up said mobile unit and be connected, then execution in step S53 with the bluetooth/WiFi of said smart mobile phone; If not, then foundation is connected with the RF of said portable cards, sets up portable cards simultaneously and is connected with the bluetooth/WiFi of smart mobile phone, then execution in step S54;
S53: send the vehicle condition data to smart mobile phone, smart mobile phone receives these vehicle condition data;
S54: send the vehicle condition data to portable cards, portable cards is sent the vehicle condition data to smart mobile phone, and smart mobile phone receives these data.
When smart mobile phone when mobile unit sends control data:
S61: judge whether to detect bluetooth/WiFi signal, if then foundation is connected with the bluetooth/WiFi of mobile unit, then execution in step S62; If not, then foundation is connected with the bluetooth/WiFi of portable cards, sets up portable cards simultaneously and is connected with the RF of mobile unit, then execution in step S63;
S621: send control data to mobile unit, mobile unit receives control data and sends these data to automobile to realize the control to automobile;
S63: send control data to portable cards, portable cards sends to mobile unit with this control data, and mobile unit receives control data and sends these data to automobile to realize the control to automobile.
In the system and method that the embodiment of the invention three provides; Onboard system both can adopt WiFi/ Bluetooth technology realization mobile unit to communicate by letter with the direct and two-way of smart mobile phone; Can adopt RF technology and WiFi/ Bluetooth technology to realize the indirect two-way communication of mobile unit and smart mobile phone through portable cards again; And can realize the switching of above-mentioned two kinds of communication modes, smart mobile phone provides abundant human-computer interaction interface for this system, and the use of smart mobile phone simultaneously makes this system have powerful service function.In addition, through the switching of communication mode, make mobile unit and smart mobile phone direct communication as far as possible, like this, portable cards has the time that more crosses to get into sleep state, thereby has prolonged the battery life of portable cards; Utilize small-power RF the telecommunication functions expanding wireless coverage area.
What each embodiment stressed in this specification all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. an onboard system is characterized in that, comprising: mobile unit and smart mobile phone;
Said mobile unit is used to obtain the vehicle condition data, sets up to be connected with the radio communication of said smart mobile phone, and said vehicle condition data are sent to said smart mobile phone;
Said smart mobile phone is used to receive said vehicle condition data, and automobile is kept watch on, controlled;
Said smart mobile phone also is used to set up with the radio communication of said mobile unit and is connected, and sends control data to said mobile unit;
Said mobile unit also is used to receive said control data, and sends said control data to automobile to realize the control to automobile.
2. system according to claim 1, said mobile unit links to each other with vehicle body through the CAN bus, it is characterized in that said smart mobile phone has the WiFi/ blue tooth interface;
Said mobile unit comprises: CAN module, a WiFi/ bluetooth module, first processor, first memory module and first power supply;
Said CAN module is used for obtaining the vehicle condition data and said vehicle condition data parsing being become to be fit to the data that said first processor is handled through the CAN bus;
Said first processor is used for data transaction after the said CAN module parses for being fit to the data that a WiFi/ bluetooth module sends;
A said WiFi/ bluetooth module is used to set up being connected of said mobile unit and said smart mobile phone, and the data after said first processor is handled send to said smart mobile phone;
Said smart mobile phone is used to receive the data that a said WiFi/ bluetooth module sends;
Also be used for sending control data to a said WiFi/ bluetooth module;
A said WiFi/ bluetooth module also is used to receive said control data;
Said first processor also is used to handle the data that a said WiFi/ bluetooth module receives;
Said CAN module, the data transaction that also is used for said first processor is handled is the data that are fit to the CAN bus transfer, and the data after will changing send automobile to through said CAN bus;
Said first processor also is used for data sync, keeps the various states of system and the renewal of significant variable;
Said first memory module is used to store user's identity information and various configuration information;
Said first power supply is used for each module for power supply to said mobile unit.
3. system according to claim 1, said mobile unit links to each other with vehicle body through the CAN bus, it is characterized in that, also comprises: portable cards;
Said smart mobile phone has the WiFi/ blue tooth interface;
Said mobile unit comprises: CAN module, a RF module, first processor, first memory module and first power supply;
Said portable cards comprises: the 2nd RF module, WiFi/ bluetooth module, second processor, second memory module, human-computer interaction module and second source;
Said CAN module is used for obtaining the vehicle condition data and said vehicle condition data parsing being become to be fit to the data that said first processor is handled through the CAN bus;
Said first processor is used for data transaction after the said CAN module parses for being fit to the data that a RF module is sent;
A said RF module is used to set up being connected of said mobile unit and said portable cards, and the data after said first processor is handled send to said portable cards;
Said the 2nd RF module of said portable cards is used to receive the data that a said RF module is sent;
Said second processor, the data transaction that is used for said the 2nd RF module is received becomes to be fit to the data that the WiFi/ bluetooth module sends;
Said WiFi/ bluetooth module is used to set up being connected of said portable cards and said smart mobile phone, and the data of said second processor processes are sent to said smart mobile phone;
Said smart mobile phone also is used to receive the data that said WiFi/ bluetooth module sends;
Also be used for sending data to said WiFi/ bluetooth module;
Said WiFi/ bluetooth module also is used to receive the control data that said smart mobile phone sends;
Said second processor, the data transaction that also is used for said WiFi/ bluetooth module is received is for being fit to the data that said the 2nd RF module is sent;
Said the 2nd RF module also is used for the data after said second processor processes are sent to a RF module of said mobile unit;
A said RF module also is used to receive the data that the 2nd RF module of said portable cards is sent;
Said first processor also is used to handle the data that a said RF module receives;
Said CAN module is used for that also said first processor is handled the back data transaction and sends automobile to for the data of suitable CAN bus transfer and through the CAN bus;
Said first processor also is used for data sync, keeps the various states of system and the renewal of significant variable;
Said first memory module is used to store user's identity information and various configuration information;
Said first power supply is used for each module for power supply to said mobile unit;
Said second processor also is used for data sync, keeps the various states of system;
Said second memory module is used to store user's identity information and configuration information;
Said second source is used for each module for power supply to said portable cards;
Said human-computer interaction module is used to provide man-machine interface.
4. system according to claim 2 is characterized in that, also comprises portable cards;
Said mobile unit also comprises a RF module, and a said RF module is used for when detecting less than the WiFi/ Bluetooth signal, sets up being connected of said mobile unit and said portable cards, and the data after the said first processor processing are sent to said portable cards;
Said portable cards comprises: the 2nd RF module, the 2nd WiFi/ bluetooth module, second processor, second memory module, human-computer interaction module and second source;
Said the 2nd RF module is used to receive the data that a said RF module is sent;
Said second processor, the data transaction that is used for said the 2nd RF module is received becomes to be fit to the data that the 2nd WiFi/ bluetooth module sends;
Said the 2nd WiFi/ bluetooth module is used to set up being connected of said portable cards and said smart mobile phone, and the data of said second processor processes are sent to said smart mobile phone;
Said smart mobile phone also is used to receive the data that said the 2nd WiFi/ bluetooth module sends;
Also be used for sending data to said the 2nd WiFi/ bluetooth module;
Said the 2nd WiFi/ bluetooth module also is used to receive the control data that said smart mobile phone sends;
Said second processor, the data transaction that also is used for said the 2nd WiFi/ bluetooth module is received is for being fit to the data that said the 2nd RF module is sent;
Said the 2nd RF module also is used for the data after said second processor processes are sent to a RF module of said mobile unit;
A said RF module also is used to receive the data that the 2nd RF module of said portable cards is sent;
Said first processor also is used to handle the data that a said RF module receives;
Said CAN module is used for that also said first processor is handled the back data transaction and sends automobile to for the data of suitable CAN bus transfer and through the CAN bus;
Said second processor also is used for data sync, keeps the various states of system;
Said second memory module is used to store user's identity information and configuration information;
Said second source is used for each module for power supply to said portable cards;
Said human-computer interaction module is used to provide man-machine interface.
5. the two-way communication between mobile unit and the smart mobile phone is characterized in that this method comprises:
When mobile unit when smart mobile phone sends the vehicle condition data:
Obtain the vehicle condition data;
Set up and be connected with the radio communication of said smart mobile phone;
Send said vehicle condition data to said smart mobile phone, said smart mobile phone receives said vehicle condition data;
When smart mobile phone when mobile unit sends control data:
Set up and be connected with the radio communication of mobile unit;
Send control data to said mobile unit, said mobile unit receives said control data and sends control data to automobile to realize the control to automobile.
6. method according to claim 5 is characterized in that, said radio communication is connected to the WiFi/ bluetooth and connects.
7. method according to claim 5; It is characterized in that; Said radio communication is connected to the RF connection and is connected with the WiFi/ bluetooth; Said RF is connected to being connected between said mobile unit and the said portable cards, and said WiFi/ bluetooth is connected to being connected of said portable cards and said smart mobile phone, at this moment; Sending said vehicle condition data to said smart mobile phone is specially: send said vehicle condition data to said portable cards, said portable cards sends to said smart mobile phone with said automobile control data again; Sending control data to said mobile unit is specially: send control data to said portable cards, portable cards sends to said mobile unit with said control data again.
8. method according to claim 5 is characterized in that, when said mobile unit detects the WiFi/ Bluetooth signal, said radio communication is connected to the WiFi/ bluetooth and connects;
When said mobile unit detects less than the WiFi/ Bluetooth signal; Said radio communication is connected to the RF connection and is connected with the WiFi/ bluetooth; Said RF is connected to being connected between said mobile unit and the said portable cards; Said WiFi/ bluetooth is connected to being connected of said portable cards and said smart mobile phone; At this moment, send said vehicle condition data to said smart mobile phone and be specially: send said vehicle condition data to said portable cards, said portable cards sends to said smart mobile phone with said automobile control data again; Sending control data to said mobile unit is specially: send control data to said portable cards, portable cards sends to said mobile unit with said control data again.
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| CN2011104368663A CN102572152A (en) | 2011-12-22 | 2011-12-22 | Vehicle-mounted system and bidirectional communication method |
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| CN2011104368663A CN102572152A (en) | 2011-12-22 | 2011-12-22 | Vehicle-mounted system and bidirectional communication method |
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Application publication date: 20120711 |