CN103051682B - Method for wireless interaction of vehicle-mounted terminal - Google Patents
Method for wireless interaction of vehicle-mounted terminal Download PDFInfo
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- CN103051682B CN103051682B CN201210524954.3A CN201210524954A CN103051682B CN 103051682 B CN103051682 B CN 103051682B CN 201210524954 A CN201210524954 A CN 201210524954A CN 103051682 B CN103051682 B CN 103051682B
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Abstract
The invention relates to a method and a system for wireless interaction of a vehicle-mounted terminal. A center control host and a wireless access port are arranged on a vehicle, so a same communication protocol is adopted between the terminals to realize the interaction of data, information and functions, the wired routing of each terminal is avoided, and the vehicle can be conveniently and additionally provided with various types of practical terminals.
Description
Technical field
The present invention relates to a kind of communication means and system of mobile unit, especially a kind of method and system realizing mobile unit wireless connections, specifically a kind of wireless interaction method and system of car-mounted terminal.
Background technology
At present along with the continuous propelling of technology of Internet of things, add that motor vehicles use the continuous expansion of scale, the car-mounted terminal of various function has had significant progress.But at present for car-mounted terminal, there are two great problems:
First is the installation of car-mounted terminal.Need owing to there being most car-mounted terminal to connect vehicle bus, and another part needs interconnection network, so there is certain difficulty when connecting up in car, and the problem of network resources locating often can not get solving, and causes the waste of resource;
Second is the development along with user's intelligent hand-held terminal, has also become main tool of communications.But current all kinds of car-mounted terminal all establishes one's own system, user's intelligent hand-held terminal well can not be brought in onboard system.
And wireless connections have and need not connect up, car-mounted terminal can be arranged on the feature of optional position in car, if but realize data between each car-mounted terminal, information, function be the key realizing Vehicular intelligent alternately, according to the knowledge of the applicant, there is no a kind of method that can realize car-mounted terminal information interaction at present available.
Summary of the invention
Problem very inconvenient when the object of the invention is to carry out wired installation for existing car-mounted terminal, invent a kind of wireless interaction method and system realizing car-mounted terminal, thus making each car-mounted terminal can realize data, information exchange by wireless, the wiring of saving each Terminal Type connects.
One of technical scheme of the present invention is:
A wireless interaction method for car-mounted terminal, is characterized in that it comprises the following steps:
First, in car, a center main control system module and a WAP (wireless access point) are installed, center main control system module is connected by CAN or wireless and each car-mounted terminal, external information is sent in each terminal, simultaneously by the request of each terminal by CAN or wirelessly pass in requested terminal;
Secondly, during the work of center main control system, first to its inside for carrying out self-inspection with the mixed-media network modules mixed-media of external network communication, ensure the unimpeded of network service;
3rd, center main control system opens wireless access service in all cars, starts wireless network in car;
4th, center main control system enters monitors circulation, in this circulation, and the registration of center other car-mounted terminals of main control system continuous reception, interaction request, and feed back accordingly;
5th, every other car-mounted terminal carries out the registration of terminal according to the radio broadcasting of center main control system; Center main control system carries out authentication according to actual conditions to each terminal, and the terminal passed through is safeguarded by center main control system;
6th, when certain terminal initiates data interaction request, center main control system provides available terminal inventory in net, selects for this terminal;
7th, after terminal has connected, center main control system, as a data relay service, connects all terminal datas and carries out control and management;
8th, after center main control system enters services listen circulation, regularly all registered car-mounted terminals and all terminal datas connected are connected and carry out examination, and initiatively nullify failed terminal or connection.
In order to ensure that intrasystem all terminal Jun Kebei centers main control system correctly identifies, and conscientiously can ensure the correctness of transfer of data, identical communication protocol is adopted at all terminal rooms, and guarantee the privacy of compatible original agreement and the original communication protocol of guarantee, ensure that terminal room can identify mutually in communication period; Described communication protocol adopts the mode of Header+Payload+Tail to assemble, and wherein Payload part is original terminal room communication data, and Header and Tail is the redundant data of additionally adding to carry out identifying between system; In practical communication process, when all terminals carry out data or instruction transmission to center main control system, all on the basis of original transmission data, corresponding Header and the Tail data of extra transmission, so that center main control system carries out controlling, manage and forwarding.
The wireless interaction of car-mounted terminal comprises data interaction, function is mutual and projection is mutual, and data interaction refers to only there is the relevant dependence of data between two or more car-mounted terminal; In data interaction, data source continues data to push to center main control system, and whether center main control system can be selected receiving, and when the car-mounted terminal of request msg needs data, data issue by center main control system; When carrying out information of vehicles monitoring, wireless senser is data source, and information of vehicles display terminal is request of data terminal; Wireless senser only need continue to carry out data-pushing to center main control system, and display terminal Zhi Xuxiang center main control system carries out the request of data, just can complete the demand of all terminals; Function refers to interconnective two or more car-mounted terminal alternately, there is the situation of unidirectional control or double-direction control to each other, now there is instruction interaction, and in function is mutual, instruction and data all carries out transfer by center main control system; Be evaluated as example with passenger, while meter printed invoice, meter terminal submits to evaluator the request of evaluation to, and then evaluator starts evaluation procedure; When evaluation completes or after time-out, evaluator sends passenger to meter and evaluates; When projection refers to that two or more car-mounted terminal is mutual each other alternately, a terminal is only had to be entity terminal, actual operation can be carried out, other-end is all projections of this terminal, entity terminal can carry out actual operation, but it can receive the instruction of all projection terminal, and the state after completing is invested projection terminal again; And projection terminal is according to the state of projection, can further operate.For interactive navigation, in car, there is navigation screen, and enter navigation mode.Now with the mobile phone access center main control system of another prepackage projection software, and carry out projection alternately with navigation screen.So mobile phone will show and on all four picture on navigation screen.When user controls on mobile phone, mobile phone, by the positional information touched or click, is sent on navigation screen via center main control system, and then navigation screen is clicked according to click location simulation, thus completes function selection; Then after navigation screen completes function, projection mobile phone can receive new data for projection, thus upgrades projection, still shows completely the same with navigation screen.
Described car-mounted terminal comprises hand-held intelligent terminal, and described hand-held intelligent terminal comprises the notebook computer of smart mobile phone and band wireless Internet access and wireless IPAD.
Two of technical scheme of the present invention is:
A kind of car-mounted terminal wireless interaction system, it comprises center main control system and WAP (wireless access point), center main control system is connected with 2G/3G/4G network and GPS by wireless, be connected with vehicle-mounted catv terminal by CAN, by WAP (wireless access point), rear and controller of vehicle, wireless senser, mobile handheld terminal, multimedia service terminal, navigation screen and other car-mounted terminal with radio transmission-receiving function realize wireless connections to center main control system alternately.
Beneficial effect of the present invention:
1. the present invention is conducive to managing concentratedly car-mounted terminal: all car-mounted terminals are all dispatched by unified mode and managed, and comprises instruction interaction, data message mutual etc.
2. the present invention can make car-mounted terminal installation and removal convenient, does not need to carry out wiring in complicated car.
3. the present invention is applicable to the wireless terminal of all compatible protocols, all can access intra vires system in car, all have unlimited expansion in theory.
Accompanying drawing explanation
Fig. 1 is wireless vehicle mounted system composition schematic diagram of the present invention.
Fig. 2 is center of the present invention main control system engineering process FB(flow block).
Fig. 3 is data interaction pattern diagram of the present invention.
Fig. 4 is function interactive mode schematic diagram of the present invention.
Fig. 5 is projection interactive mode schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Embodiment one.
As shown in Figure 1.
A kind of car-mounted terminal wireless interaction system, it comprises center main control system and WAP (wireless access point), center main control system is connected with 2G/3G/4G network and GPS by wireless, be connected with vehicle-mounted catv terminal by CAN, by WAP (wireless access point), rear and controller of vehicle, wireless senser, mobile handheld terminal, multimedia service terminal, navigation screen and other car-mounted terminal with radio transmission-receiving function realize wireless connections to center main control system alternately.In wireless vehicle mounted system, center main control system is the hinge (see figure 1) of whole system, its effect be with whole car machine system outside carry out information interaction, obtain the necessary information of other car-mounted terminals, then by these distribution of information on each concrete car-mounted terminal be associated.Be specially:
1. connect Can bus, locator data transport module and wireless data transfer module etc.;
2. WAP (wireless access point) in car is provided, comprises the various wireless signal occurring source may used in car machine, connect for other car-mounted terminals;
3. by the mode of data interaction, every other car-mounted terminal is reported, and the data that obtain alternately of outside are carried out internal data and are shared;
4. by instruction mode other car-mounted terminals managed and control.
Embodiment two.
A wireless interaction method for car-mounted terminal, it comprises the following steps:
First, in car, a center main control system module and a WAP (wireless access point) are installed, center main control system module is connected by CAN or wireless and each car-mounted terminal, external information is sent in each terminal, simultaneously by the request of each terminal by CAN or wirelessly pass in requested terminal;
Secondly, during the work of center main control system, first to its inside for carrying out self-inspection with the mixed-media network modules mixed-media of external network communication, ensure the unimpeded of network service;
3rd, center main control system opens wireless access service in all cars, starts wireless network in car;
4th, center main control system enters monitors circulation, in this circulation, and the registration of center other car-mounted terminals of main control system continuous reception, interaction request, and feed back accordingly;
5th, every other car-mounted terminal carries out the registration of terminal according to the radio broadcasting of center main control system; Center main control system carries out authentication according to actual conditions to each terminal, and the terminal passed through is safeguarded by center main control system;
6th, when certain terminal initiates data interaction request, center main control system provides available terminal inventory in net, selects for this terminal;
7th, after terminal has connected, center main control system, as a data relay service, connects all terminal datas and carries out control and management;
8th, after center main control system enters services listen circulation, regularly all registered car-mounted terminals and all terminal datas connected are connected and carry out examination, and initiatively nullify failed terminal or connection.
In order to ensure that intrasystem all terminal Jun Kebei centers main control system correctly identifies, and conscientiously can ensure the correctness of transfer of data, identical communication protocol is adopted at all terminal rooms, and guarantee the privacy of compatible original agreement and the original communication protocol of guarantee, ensure that terminal room can identify mutually in communication period; Described communication protocol adopts the mode of Header+Payload+Tail to assemble, and wherein Payload part is original terminal room communication data, and Header and Tail is the redundant data of additionally adding to carry out identifying between system; In practical communication process, when all terminals carry out data or instruction transmission to center main control system, all on the basis of original transmission data, corresponding Header and the Tail data of extra transmission, so that center main control system carries out controlling, manage and forwarding.
The concrete form of communication protocol sees the following form:
Wherein:
BIN: binary data byte step-by-step definition (0 ~ 1)
U08: byte unsigned number (0 ~ 255)
S08: byte signed number (-128 ~ 127)
U16: double byte unsigned number (0 ~ 65535)
S16: double byte signed number (-32768 ~ 32767)
U32: nybble unsigned number (0 ~ 4294967295)
S32: nybble signed number (-2147483648 ~ 2147483647)
F32: single precision floating datum
F64: double-precision floating points
BCD: compressed code byte (0 ~ 99)
STR:ASCII character string
BUF: multibyte binary data area
cRC16 check matrix:
const uint8 suCRC16[]=
{0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40, //0x00000000 - 0x0000000f
0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41, //0x00000010 - 0x0000001f
0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41, //0x00000020 - 0x0000002f
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40, //0x00000030 - 0x0000003f
0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41, //0x00000040 - 0x0000004f
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40, //0x00000050 - 0x0000005f
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40, //0x00000060 - 0x0000006f
0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41, //0x00000070 - 0x0000007f
0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41, //0x00000080 - 0x0000008f
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40, //0x00000090 - 0x0000009f
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40, //0x000000a0 - 0x000000af
0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41, //0x000000b0 - 0x000000bf
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40, //0x000000c0 - 0x000000cf
0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41, //0x000000d0 - 0x000000df
0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41, //0x000000e0 - 0x000000ef
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40, //0x000000f0 - 0x000000ff
0x00,0xc0,0xc1,0x01,0xc3,0x03,0x02,0xc2,0xc6,0x06,0x07,0xc7,0x05,0xc5,0xc4,0x04, //0x00000100 - 0x0000010f
0xcc,0x0c,0x0d,0xcd,0x0f,0xcf,0xce,0x0e,0x0a,0xca,0xcb,0x0b,0xc9,0x09,0x08,0xc8, //0x00000110 - 0x0000011f
0xd8,0x18,0x19,0xd9,0x1b,0xdb,0xda,0x1a,0x1e,0xde,0xdf,0x1f,0xdd,0x1d,0x1c,0xdc, //0x00000120 - 0x0000012f
0x14,0xd4,0xd5,0x15,0xd7,0x17,0x16,0xd6,0xd2,0x12,0x13,0xd3,0x11,0xd1,0xd0,0x10, //0x00000130 - 0x0000013f
0xf0,0x30,0x31,0xf1,0x33,0xf3,0xf2,0x32,0x36,0xf6,0xf7,0x37,0xf5,0x35,0x34,0xf4, //0x00000140 - 0x0000014f
0x3c,0xfc,0xfd,0x3d,0xff,0x3f,0x3e,0xfe,0xfa,0x3a,0x3b,0xfb,0x39,0xf9,0xf8,0x38, //0x00000150 - 0x0000015f
0x28,0xe8,0xe9,0x29,0xeb,0x2b,0x2a,0xea,0xee,0x2e,0x2f,0xef,0x2d,0xed,0xec,0x2c, //0x00000160 - 0x0000016f
0xe4,0x24,0x25,0xe5,0x27,0xe7,0xe6,0x26,0x22,0xe2,0xe3,0x23,0xe1,0x21,0x20,0xe0, //0x00000170 - 0x0000017f
0xa0,0x60,0x61,0xa1,0x63,0xa3,0xa2,0x62,0x66,0xa6,0xa7,0x67,0xa5,0x65,0x64,0xa4, //0x00000180 - 0x0000018f
0x6c,0xac,0xad,0x6d,0xaf,0x6f,0x6e,0xae,0xaa,0x6a,0x6b,0xab,0x69,0xa9,0xa8,0x68, //0x00000190 - 0x0000019f
0x78,0xb8,0xb9,0x79,0xbb,0x7b,0x7a,0xba,0xbe,0x7e,0x7f,0xbf,0x7d,0xbd,0xbc,0x7c, //0x000001a0 - 0x000001af
0xb4,0x74,0x75,0xb5,0x77,0xb7,0xb6,0x76,0x72,0xb2,0xb3,0x73,0xb1,0x71,0x70,0xb0, //0x000001b0 - 0x000001bf
0x50,0x90,0x91,0x51,0x93,0x53,0x52,0x92,0x96,0x56,0x57,0x97,0x55,0x95,0x94,0x54, //0x000001c0 - 0x000001cf
0x9c,0x5c,0x5d,0x9d,0x5f,0x9f,0x9e,0x5e,0x5a,0x9a,0x9b,0x5b,0x99,0x59,0x58,0x98, //0x000001d0 - 0x000001df
0x88,0x48,0x49,0x89,0x4b,0x8b,0x8a,0x4a,0x4e,0x8e,0x8f,0x4f,0x8d,0x4d,0x4c,0x8c, //0x000001e0 - 0x000001ef
0x44,0x84,0x85,0x45,0x87,0x47,0x46,0x86,0x82,0x42,0x43,0x83,0x41,0x81,0x80,0x40}; //0x000001f0 - 0x000001ff
checking algorithm:
uint8 Check_CRC16(char * Data, int Length,unsigned char Mode)
{
extern uint8 suCRC16[];
STATIC uint8 cHi,cLo,ic;
STATIC uint32 i;
STATIC uint16 Jcrc,Rcrc;
cHi=0xff;
cLo=0xff;
for(i=0;i<Length;i++)
{ic=cHi^Data[i];
cHi=cLo^suCRC16[ic];
cLo=suCRC16[ic+0x100];
}
Jcrc=(cHi<<8)|cLo;
Rcrc=Data[Length]<<8|Data[Length+1];
If (Mode==1) // generation check code is written back to data field
{Data[Length] =cHi;
Data[Length+1]=cLo;
}
If (Jcrc==Rcrc) // compare effect code and return
{
return 1;
}
else
{
return 0;
}
}
The wireless interaction of car-mounted terminal of the present invention comprises data interaction, function is mutual and projection is mutual, and data interaction refers to only there is the relevant dependence of data between two or more car-mounted terminal; In data interaction, data source continues data to push to center main control system, and whether center main control system can be selected receiving, and when the car-mounted terminal of request msg needs data, data carry out issuing (see figure 3) by center main control system; When carrying out information of vehicles monitoring, wireless senser is data source, and information of vehicles display terminal is request of data terminal; Wireless senser only need continue to carry out data-pushing to center main control system, and display terminal Zhi Xuxiang center main control system carries out the request of data, just can complete the demand of all terminals; Function refers to interconnective two or more car-mounted terminal alternately, there is the situation of unidirectional control or double-direction control to each other, now there is instruction interaction, and in function is mutual, instruction and data all carries out transfer (see figure 4) by center main control system; Be evaluated as example with passenger, while meter printed invoice, meter terminal submits to evaluator the request of evaluation to, and then evaluator starts evaluation procedure; When evaluation completes or after time-out, evaluator sends passenger to meter and evaluates; When projection refers to that two or more car-mounted terminal is mutual each other alternately, a terminal is only had to be entity terminal, actual operation can be carried out, other-end is all projections of this terminal, entity terminal can carry out actual operation, but it can receive the instruction of all projection terminal, and the state after completing is invested projection terminal again; And projection terminal is according to the state of projection, further (see figure 5) can be operated.For interactive navigation, in car, there is navigation screen, and enter navigation mode.Now with the mobile phone access center main control system of another prepackage projection software, and carry out projection alternately with navigation screen.So mobile phone will show and on all four picture on navigation screen.When user controls on mobile phone, mobile phone, by the positional information touched or click, is sent on navigation screen via center main control system, and then navigation screen is clicked according to click location simulation, thus completes function selection; Then after navigation screen completes function, projection mobile phone can receive new data for projection, thus upgrades projection, still shows completely the same with navigation screen.
Information interaction is realized as in car-mounted terminal access onboard wireless system in order to adapt to hand-held intelligent terminal (comprising the notebook computer of smart mobile phone and band wireless Internet access and wireless IPAD), authentication software can be pre-installed in hand-held intelligent terminal, access as a car-mounted terminal.Work is carried out by center main control system by following pattern after access:
1., with data interaction pattern, share wireless network with center main control system and be connected;
2. with data interaction pattern, gather locator data or vehicle self-information, shown by the client customized;
3. with function interactive mode or projection mode, connect other functional form terminals (as vehicle-mounted media playback terminal etc.), share the function of other-end;
With project interactive mode time, self, as entity terminal, is projected on the larger car-mounted terminal of screen by hand-held intelligent terminal self, share handheld terminal function (as mobile phone, short message, media play etc.).
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (4)
1. a wireless interaction method for car-mounted terminal, is characterized in that it comprises the following steps:
First, in car, a center main control system and a WAP (wireless access point) are installed, center main control system module is connected by CAN or wireless and each car-mounted terminal, external information is sent in each terminal, simultaneously by the request of each car-mounted terminal by CAN or wirelessly pass on requested car-mounted terminal;
Secondly, during the work of center main control system, first to its inside for carrying out self-inspection with the mixed-media network modules mixed-media of external network communication, ensure the unimpeded of network service;
3rd, center main control system opens wireless access service in all cars, starts wireless network in car;
4th, center main control system enters monitors circulation, in this circulation, and the registration of center main control system continuous reception car-mounted terminal, interaction request, and feed back accordingly;
5th, all car-mounted terminals carry out the registration of terminal according to the radio broadcasting of center main control system; Center main control system carries out authentication according to actual conditions to each car-mounted terminal, and the car-mounted terminal passed through is safeguarded by center main control system;
6th, when certain car-mounted terminal initiates data interaction request, center main control system provides available car-mounted terminal inventory in net, selects for this car-mounted terminal;
7th, after car-mounted terminal has connected, center main control system, as a data relay service, carries out control and management to all car-mounted terminal data links;
8th, after center main control system enters services listen circulation, regularly examination is carried out to all registered car-mounted terminals and all car-mounted terminal data links connected, and initiatively nullify failed car-mounted terminal or connect link.
2. method according to claim 1, it is characterized in that to ensure that intrasystem all car-mounted terminal Jun Kebei centers main control system correctly identifies, and conscientiously can ensure the correctness of transfer of data, identical communication protocol is adopted between all car-mounted terminals, and guarantee the privacy of compatible original agreement and the original communication protocol of guarantee, ensure can identify mutually between car-mounted terminal in communication period; Described communication protocol adopts the mode of Header+Payload+Tail to assemble, and wherein Payload part is communication data between original car-mounted terminal, and Header and Tail is the redundant data of additionally adding to carry out identifying between system; In practical communication process, when all car-mounted terminals carry out data or instruction transmission to center main control system, all on the basis of original transmission data, corresponding Header and the Tail data of extra transmission, so that center main control system carries out controlling, manage and forwarding.
3. method according to claim 1, is characterized in that the wireless interaction of car-mounted terminal comprises data interaction, function is mutual and projection is mutual, and data interaction refers to only there is the relevant dependence of data between two or more car-mounted terminal; In data interaction, data source continues data to push to center main control system, and whether center main control system can be selected receiving, and when the car-mounted terminal of request msg needs data, data issue by center main control system; Function refers to interconnective two or more car-mounted terminal alternately, there is the situation of unidirectional control or double-direction control to each other, now there is instruction interaction, and in function is mutual, instruction and data all carries out transfer by center main control system; When projection refers to that two or more car-mounted terminal is mutual each other alternately, a car-mounted terminal is only had to be entity terminal, actual operation can be carried out, other car-mounted terminals are all projections of this car-mounted terminal, entity car-mounted terminal can carry out actual operation, but it can receive the instruction of all projection car-mounted terminals, and the state after completing is invested projection car-mounted terminal again; And the state of car-mounted terminal according to projection that project, can further operate.
4. method according to claim 1, is characterized in that described car-mounted terminal comprises hand-held intelligent terminal, and described hand-held intelligent terminal comprises the notebook computer of smart mobile phone and band wireless Internet access and wireless IPAD.
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| CN201210524954.3A CN103051682B (en) | 2012-12-10 | 2012-12-10 | Method for wireless interaction of vehicle-mounted terminal |
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| CN201210524954.3A CN103051682B (en) | 2012-12-10 | 2012-12-10 | Method for wireless interaction of vehicle-mounted terminal |
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| CN103747062B (en) * | 2013-12-27 | 2018-10-19 | 上海聚力传媒技术有限公司 | A kind of method that multiple mobile units are managed, equipment and system |
| US10033819B2 (en) * | 2016-07-28 | 2018-07-24 | GM Global Technology Operations LLC | Operating a vehicle wireless access point to selectively connect to wireless vehicle devices |
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