CN104640238A - Vehicle-mounted communication device with external SIM (subscriber identity module) card - Google Patents
Vehicle-mounted communication device with external SIM (subscriber identity module) card Download PDFInfo
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- CN104640238A CN104640238A CN201310574701.1A CN201310574701A CN104640238A CN 104640238 A CN104640238 A CN 104640238A CN 201310574701 A CN201310574701 A CN 201310574701A CN 104640238 A CN104640238 A CN 104640238A
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- 238000004891 communication Methods 0.000 title claims abstract description 123
- 230000008859 change Effects 0.000 claims abstract description 13
- 230000003993 interaction Effects 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 230000002452 interceptive effect Effects 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 description 3
- 235000012054 meals Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a vehicle-mounted communication device with an external SIM (subscriber identity module) card. The vehicle-mounted communication device is provided with an internal SIM card, the external SIM card and a communication control module. The internal SIM card is used for interacting vehicle service data with a background server. The external SIM card being hot-pluggable is used for interacting application service data with the internet. The communication control module is used for distinguishing service types selected by a user, and when the external SIM card is hot plugged, the communication control module is configured to 1) generate a card change command on the basis of a card changing function selected by the user; 2) be electrically disconnected with the current external SIM card on the basis of the card changing command; 3) detect a card plug signal generated from plugging of a new external SIM card; 4) recover power supply to the new external SIM card on the basis of the card plug signal. The vehicle-mounted communication device with the external SIM card has the advantages that data services are shunted, and two types of data are controlled to interact via the external SIM card and the internal SIM card respectively.
Description
Technical field
The present invention relates to auto electroincs.More specifically, the vehicle communications device with external SIM card is related to.
Background technology
Along with the development of car networking technology, vehicle communications device assembles onboard in increasing depot, realizes the information interaction of vehicle and the Internet or background server.User mainly contains two kinds by the business datum that vehicle communications device is initiated, and a kind of is the application service data mutual with the Internet, and data volume is larger, mainly digital map navigation, music, picture, weather condition and other various application etc.; Another is the car service data mutual with background server, and data volume is smaller, mainly relevant to vehicle-state data and order.In order to realize the communication with the Internet and background server, existing vehicle communications device is all the SIM card that is welded in device inside usually, realizes data upload and download by the carrier network of this SIM card.
For the availability of Deterministic service, car-mounted device has determined the operator of SIM card and the set meal rate of SIM card when dispatching from the factory, user cannot from main separation.And once operator and set meal are selected, not only user cannot change, and automobile vendor is also difficult to change, the vehicle communications device inside because SIM card is welded.
Such as, but along with the extensive use of the Internet 3G technology, user needs increasing application, data navigation, music service etc.But the operator that vehicle solidifies when dispatching from the factory and tariff package limit the use of user to new opplication.Such as, some locations only cover the signal of an operator, but vehicle is cured as can only select another one operator, and so user just cannot realize automobile navigation, makes troubles to user.
Summary of the invention
According to the demand of above-mentioned real world applications, the present invention proposes a kind of vehicle communications device with external SIM card, it has for the built-in SIM card with background server interactive vehicle service data, also have: for the external SIM card with the Internet interactive application service data, described external SIM card is hot swappable; The communication control module be electrically connected with described built-in SIM card and external SIM card, communication control module, the type of service that described communication mould control module is selected for distinguishing user, if type of service is application service, then carry out application service data interaction by external SIM card and the Internet, if type of service is vehicle service, then carry out car service data by built-in SIM card and background server mutual; Wherein, when external SIM card is by hot plug, described communication control module is configured to: 1) generate based on the changing card function of user's selection and change card command; 2) change card command based on described and disconnect the electrical connection with current external SIM card; 3) insertion of new external SIM card is detected and the card that produces inserts signal; And 4) insert signal and the power supply that recovers described new external SIM card based on described card.
Further, described communication control module is configured to carry out differentiated service type by traffic ID, and wherein said traffic ID contains traffic type information.
Further, described vehicle communications device comprises the user interface for selecting business, configures described vehicle communications device for user by described user interface.
Further, described vehicle communications device can be configured to by handset-selected business, and described mobile phone is mounted with corresponding application program, configures described vehicle communications device for user by described mobile phone.
Further, the opening for the slot holding described external SIM card is positioned at vehicle instrument desk, and described slot has electric connection point, and described external SIM card is electrically connected to described communication control module by described electric connection point.
Further, described communication control module comprises: main control chip, the type of service that described main control chip is selected for distinguishing user, and according to selected service generation service data request order, described main control chip is also for generating described identifying code; SIM card interface, described SIM card interface is for being electrically connected described external SIM card; Wireless communication chips, described wireless communication chips is communicated with built-in SIM card with described external SIM card by SIM card interface, and receives the data request command from main control chip, and then selects external SIM card or built-in SIM card to complete data interaction.
Further, described communication control module also comprises CAN transceiver, and described main control chip is by the car running computer interactive vehicle state parameter of described CAN transceiver and vehicle.
Further, described main control chip comprises the identifying code generation unit for generating identifying code, described identifying code is transferred to described external SIM card, described identifying code comprises the information be associated with the device identification number of described vehicle communications device, described external SIM card has the authentication unit for verifying described identifying code, if authentication failed, described external SIM card is locked, if be proved to be successful, described SIM card normally uses.
Further, when external SIM card is by hot plug, described main control chip is configured to: 1) generate based on the changing card function of user's selection and change card command; 2) the described card command that changes is transferred to wireless communication chips, controls the electrical connection that wireless communication chips disconnects SIM card interface and current external SIM card; 3) receive that SIM card interface detects the insertion of new external SIM card and the card that sends inserts signal; 4) SIM card interface is recovered to the power supply of described new external SIM card.
Further, main control chip adopts S912XET256, and wireless communication chips adopts FLC-MCM390.
Data service is shunted by the present invention, controls two kinds of data and uses external SIM card and built-in SIM card to carry out data interaction respectively.This scheme user can be allowed to decide in its sole discretion operator that application service uses and set meal rate, the less vehicle service of data volume is then by depot's management and control, and the reliability of Deterministic service, also for depot has saved cost of serving.
Accompanying drawing explanation
Fig. 1 is the structural representation of vehicle communications device of the present invention;
Fig. 2 is the structure principle chart of the communication control module in Fig. 1;
Fig. 3 is the circuit diagram of an example of communication control module in Fig. 2.
Embodiment
Fig. 1 shows the structural representation of vehicle communications device of the present invention.As shown in the figure, vehicle communications device of the present invention has two SIM card to realize data interaction, and one is external SIM card, and one is built-in SIM card.External SIM card is used for and the Internet interactive application service data, and external SIM card is pluggable.Built-in SIM card is used for and background server interactive vehicle service data.
Described vehicle communications device has external SIM card slot, to hold this external SIM card.External SIM card of the present invention not only refers to common SIM card, can also use the usim card (Universal Subscriber Identity Module, Global Subscriber identification card) with more large storage capacity.
Preferably, described vehicle communications device is assembled to after on vehicle, and this external SIM card slot is arranged on vehicle instrument desk, namely, vehicle instrument desk is provided with opening, and to expose this external SIM card slot, thus external SIM card can be inserted in this SIM card slot or in slot and extracts by user.
Had this external SIM card, user can select different information service tariff packages for this external SIM card, in addition, by changing different external SIM card, also can select different operators.
Present invention achieves the shunting of data, namely distinguish application service and vehicle service.Which SIM card the streamed data for how, use carry out data interaction, then realized by the communication control module (describing in detail below) of vehicle communications device.
External SIM card slot as above has electric connection point (electric contact), and this electric connection point is connected with the electric contact of SIM card.Meanwhile, the electric connection point of this external SIM card slot is also electrically connected to communication control module, to realize data interaction.More specifically, this external SIM card slot is electrically connected to the SIM card interface (referring to the Fig. 2 described below) of this communication control module.
Communication control module determines to use which SIM card according to type of service, when user initiates data service, vehicle communications device differentiated service type, if type of service is application service, then complete data interaction (using the flow of external SIM card) by external SIM card, if type of service is vehicle service, then complete data interaction (using the flow of built-in SIM card) by built-in SIM card.
In one embodiment, user can initiate a service by the user interface of vehicle communications device, Client-initiated every service has the unique traffic ID pre-set, the type of business is contained in traffic ID, in the ongoing illustrated embodiment, type of service comprises two kinds, and the first is application service, and the second is vehicle service.Vehicle communications device distinguishes application service or vehicle service by traffic ID, and then selects which SIM card to complete data interaction.All come by the wireless network of operator with the data interaction of the Internet and background server.
Preferably, the user interface of vehicle communications device comprises input key and display screen, or has touch-screen, and user can select a service by this user interface, and mutual data message can show on a user interface.
In another embodiment, user can initiate a service by mobile phone.Be specially, be mounted with the application A PP software of some service in mobile phone, mobile phone carries out communication by this APP software and the Internet or background server, selects this to serve, and transmission service request is to the Internet or background server.Comprise traffic ID in service request, and every service has unique traffic ID, this traffic ID contains type of service, such as, be application service or vehicle service.After the Internet and background server obtain this service request, this traffic ID is transferred to vehicle communications device, vehicle communications device then can distinguish application service or vehicle service by traffic ID, and then selects which SIM card to complete data interaction.All come by the wireless network of operator with the data interaction of the Internet and background server.
Advantageously, user can be configured described vehicle communications device by described user interface or mobile phone input configuration parameter.
Fig. 2 is the structure principle chart of an embodiment of communication control module in Fig. 1.
Vehicle communications device comprises user interface, and select a service for user, user interface comprises display screen and button.In another embodiment, user interface is touch-screen.
Vehicle communications device also comprises main control chip (MCU), it receives the request to a service from user interface, each service has unique traffic ID, traffic ID contains traffic type information, main control chip distinguishes application service or vehicle service by traffic ID, and generates data request command.
Vehicle communications device also comprises wireless communication chips, and this chip communicates with main control chip, is connected by SIM card interface with external SIM card and built-in SIM card simultaneously.This wireless communication chips receives the data request command of main control chip, is performed select which SIM card to complete data interaction by different service data request orders.Wireless communication chips comprise in GPRS communication module, CDMA2000 communication module, TD-SCDMA communication module and WCDMA communication module one or more.
Vehicle communications device also comprises built-in aerial, and it is connected with wireless communication chips, for sending data to the Internet and background server, and receives the data from the Internet and background server.Described built-in aerial is 2G or 3G antenna.
Further, vehicle communications device also comprises CAN transceiver, and CAN transceiver is used for obtaining vehicle status parameters from vehicle driving computer, and is transferred to background server by main control chip and wireless communication chips.Meanwhile, the car service data being received from background server by built-in aerial also can be sent to vehicle driving computer by CAN transceiver and carry out automobile parameter configuration.
In the embodiment shown in fig. 1, describing user can be configured vehicle communications device by user interface and mobile phone, further describes this process referring now to Fig. 2.
When user uses user interface to configure, configuration parameter is by after the input of user interface (not shown), the main control chip of communication control module resolves described configuration parameter, if the configuration to vehicle service parameter (such as vehicle parameter), the car running computer of vehicle is then sent to by CAN transceiver, if application service parameter (such as data volume limits alternately), then configure wireless communication chips.In addition, can also wireless communication chips be passed through, via SIM card interface, described external SIM card is configured.
When user uses mobile phone to configure, substantially identical with the process of above-mentioned use user interface, except first configuration parameter is sent to the Internet or background server via mobile phone, configuration parameter is transferred to wireless communication chips via external SIM card or built-in SIM card by the Internet or background server, and then be transferred to main control chip, after resolving via main control chip, then carry out corresponding configuration.Correspondingly, mobile phone is mounted with the APP for configuring described vehicle communications device.
In a preferred embodiment, external SIM card of the present invention can lock with vehicle communications device.In described external SIM card, arrange an identifying code (or specific PIN code), this identifying code contains the information relevant with unique device identification number of vehicle communications device.When after described vehicle communications device and described external SIM card checking, described external SIM card just can use, otherwise card lock.It is stolen when such scheme can prevent external SIM card from losing.
Correspondingly, described external SIM card comprises authentication unit, after described external SIM card inserts vehicle communications device, this authentication unit receives the identifying code from communication control module, compare with the identifying code prestored, identical, external SIM card starts normal communication function, otherwise card lock.
Correspondingly, the main control chip of vehicle communications device comprises identifying code generation unit, its device identification number according to vehicle communications device (unique) generation identifying code, is sent to wireless communication chips, and wireless communication chips is sent to described external SIM card via SIM card interface.
Before external SIM card and vehicle communications device checking, need pre-configured described specific identifying code.Be specially, in aforesaid layoutprocedure, user is by user interface or handset-selected configuration verification function, then main control chip generates described certain validation code, transfer to described external SIM card, this identifying code is stored in secure storage section by described external SIM card.
In a further advantageous embodiment, vehicle communications device has and changes card function, and described external SIM card is hot swappable.Describedly hot-swappablely can be realized by communication control module, to be specially:
1) that selects based on user changing card function and generates and change card command;
2) change card command based on described and disconnect the electrical connection with current external SIM card;
3) insertion of new external SIM card is detected and the card that produces inserts signal; And
4) power supply recovered described new external SIM card based on described card insertion signal.
More specifically, for the communication control module with the structure shown in Fig. 2, the process implementation of described hot plug is:
Step 1) is when the described external SIM card of needs is extracted from slot (such as changing SIM card), and user selects to change card function by described user interface;
Step 2) main control chip sends and changes card command, and this changes card command and is transferred to wireless communication chips, and wireless communication chips controls SIM card interface and disconnects the electrical connection with described current external SIM card;
Step 3) extracts current external SIM card;
Step 4) inserts new external SIM card, and SIM card interface detects the insertion of SIM card, sends card and inserts signal, transfer to wireless communication chips, and then be transferred to main control chip;
Step 5) recovers SIM card interface to the power supply of described external SIM card newly by wireless communication chips, brings into use new external SIM card.
Fig. 3 is the circuit module figure of an example of communication control module in Fig. 2.In this example, main control chip adopts S912XET256.Wireless communication chips adopts FLC-MCM390, and as can be seen from the figure this wireless communication chips has two SIM card interfaces, can connect two SIM card, and also have GPS chip interface.Built-in aerial has antenna connector, and have employed WAN antenna connector TYCO 0638817-4,2.4G antenna connector TYCO 0638817-9, gps antenna connector TYCO 0638817-3, built-in aerial is connected to described wireless communication chips.Also show the acceleration transducer ACC transducer BMA020 for obtaining pickup data in the drawings, this acceleration transducer is connected to described main control chip, and CAN transceiver is also connected with described main control chip.CAN transceiver is divided into CAN high-speed transceiver and CAN middling speed transceiver.
Above-described embodiment is typical execution mode; but the present invention is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. have a vehicle communications device for external SIM card, it has for the built-in SIM card with background server interactive vehicle service data, it is characterized in that also having:
For the external SIM card with the Internet interactive application service data, described external SIM card is hot swappable;
The communication control module be electrically connected with described built-in SIM card and external SIM card, the type of service that described communication mould control module is selected for distinguishing user, if type of service is application service, then carry out application service data interaction by external SIM card and the Internet, if type of service is vehicle service, then carry out car service data by built-in SIM card and background server mutual;
Wherein, when external SIM card is by hot plug, described communication control module is configured to:
1) that selects based on user changing card function and generates and change card command;
2) change card command based on described and disconnect the electrical connection with current external SIM card;
3) insertion of new external SIM card is detected and the card that produces inserts signal; And
4) power supply recovered described new external SIM card based on described card insertion signal.
2. the vehicle communications device with external SIM card according to claim 1, is characterized in that, described communication control module is configured to carry out differentiated service type by traffic ID, and wherein said traffic ID contains traffic type information.
3. the vehicle communications device with external SIM card according to claim 1, is characterized in that, described vehicle communications device comprises the user interface for selecting business, configures described vehicle communications device for user by described user interface.
4. the vehicle communications device with external SIM card according to claim 1, it is characterized in that, described vehicle communications device can be configured to by handset-selected business, and described mobile phone is mounted with corresponding application program, configures described vehicle communications device for user by described mobile phone.
5. the vehicle communications device with external SIM card according to claim 1, it is characterized in that, opening for the slot holding described external SIM card is positioned at vehicle instrument desk, and described slot has electric connection point, described external SIM card is electrically connected to described communication control module by described electric connection point.
6. the vehicle communications device with external SIM card according to claim 1, is characterized in that, described communication control module comprises:
Main control chip, the type of service that described main control chip is selected for distinguishing user, and according to selected service generation service data request order, described main control chip is also for generating described identifying code;
SIM card interface, described SIM card interface is for being electrically connected described external SIM card;
Wireless communication chips, described wireless communication chips is communicated with built-in SIM card with described external SIM card by SIM card interface, and receives the data request command from main control chip, and then selects external SIM card or built-in SIM card to complete data interaction.
7. the vehicle communications device with external SIM card according to claim 6, is characterized in that, described communication control module also comprises CAN transceiver, and described main control chip is by the car running computer interactive vehicle state parameter of described CAN transceiver and vehicle.
8. the vehicle communications device with external SIM card according to claim 6, it is characterized in that, described main control chip comprises the identifying code generation unit for generating identifying code, described identifying code is transferred to described external SIM card, described identifying code comprises the information be associated with the device identification number of described vehicle communications device
Described external SIM card has the authentication unit for verifying described identifying code, if authentication failed, described external SIM card is locked, if be proved to be successful, described SIM card normally uses.
9. the vehicle communications device with external SIM card according to claim 8, is characterized in that, when external SIM card is by hot plug, described main control chip is configured to:
1) that selects based on user changing card function and generates and change card command;
2) the described card command that changes is transferred to wireless communication chips, controls the electrical connection that wireless communication chips disconnects SIM card interface and current external SIM card;
3) receive that SIM card interface detects the insertion of new external SIM card and the card that sends inserts signal;
4) SIM card interface is recovered to the power supply of described new external SIM card.
10. the vehicle communications device with external SIM card according to claim 6, is characterized in that, main control chip adopts S912XET256, and wireless communication chips adopts FLC-MCM390.
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