CN102411546B - Method for implementing connected communication of 3G data cards in at least two operation modes - Google Patents
Method for implementing connected communication of 3G data cards in at least two operation modes Download PDFInfo
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- CN102411546B CN102411546B CN201110315125XA CN201110315125A CN102411546B CN 102411546 B CN102411546 B CN 102411546B CN 201110315125X A CN201110315125X A CN 201110315125XA CN 201110315125 A CN201110315125 A CN 201110315125A CN 102411546 B CN102411546 B CN 102411546B
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Abstract
The invention discloses a method for implementing the connected communication of 3G data cards in at least two operation modes, which belongs to the technical field of wireless communication, and relates to a communication interlinking method for multi-version 3G data cards, in particular relates to a method capable of automatically identifying and automatically adapting to the communication modes of 3G data cards (more than two versions) in a Linux system. In the method disclosed by the invention, a 3G modem management module and equipment characteristic data files for 3G data cards are added in a computer, when a 3G data card is inserted into the computer and switched into a modem mode, the 3G data card is identified automatically, and then a dial-up configuration file is generated, thereby completing an operation of password management or information query.
Description
Technical field
The invention belongs to wireless communication technology field, relate to a kind of can automatically identify and automatically adapt to the 3G data card communication mode of two or more versions in method, particularly linux system of many version 3s G data card communication link method.
Background technology
The 3G data card refers to the equipment that is applied to computer and adopts 3G (Third Generation) Moblie technology accessing Internet.Be divided into 3 classes according to the technical standard 3G data card of 3G network: WCDMA data card, TD data card, CDMA card of surfing Internet.The same with mobile phone, it also needs to use SIM card.
The 3G data card is while using as a kind of modulator-demodular unit, the data signal modulation of the PPP form that it sends computer here sends to the machine station of mobile radio communication on radio carrier, conversely the wireless signal demodulation received out is reduced into to the PPP information bag and passes to computer.
Current 3G data card on the market is in the majority with USB interface, all to be designed for above WINDOWS operating system, for the ease of the user, use, the 3G data card is designed to following working method: at first, when data card has just injected the external-connected port of equipment, it shows as a CD-ROM equipment, and this CD-ROM software of comprising a set of automatic operation, Auto-mounting, and this software comprises driving, and dialing supervisory routine etc.When this cover running software and after installing, it can identify the 3G data card inserted automatically, and write some special orders in the USB interface of this 3G data card, force this 3G data card to carry out the switching of mode of operation, be converted into a modem device, this modem device both can be with the dial-up program dial-up connection internet of WINDOWS, also can by
The application program of above-mentioned Auto-mounting is carried out dial-up connection.
After the 3G data card switches to modulator-demodular unit, serve as the part of data circuit termination equipment in the whole system that dials up on the telephone, use the AT instruction to be controlled it.AT is Attention, and the AT instruction sends to terminal adapter or data circuit termination equipment from terminal device or data terminal equipment.By TA, TE sends the function that transfer table is controlled in the AT instruction, with the 3G network business, carries out alternately.The control of the aspects such as the user can be called out by the AT instruction, note, phone directory, data service, fax.
Use the 3G data card under the Linux environment, mainly contain the work of following aspect: the mode of operation of switching 3G data card, use the AT instruction to be called out, carry out the PPP attended operation, also have in addition Password Management, PIN code and the PUK code of SIM card be set, and information inquiry, check current signal intensity, the complementary operations such as the registration scenarios of current network.
For above-mentioned work, process and have significant limitation under the Linux environment at present, mainly because the manufacturer of 3G data card, the use under the WINDOWS system of all take is prerequisite, carry dialer software and user administration software, cause the 3G data card of producing there is no unified standard, the interface that different its PPP dialing of product line of different producers is used is all different, every kind of product is because the occasion difference of using, the serial line interface number that it provides is also different, this has just occurred selecting that interface to carry out the PPP connection, which interface carries out Password Management, the problem of the control operations such as information inquiry.For the AT instruction, although IUT formulates, some standards are arranged, a lot of function commands do not have specified in more detail in standard, and relevant standard is not observed by each producer yet.Caused like this under linux system and to have used the 3G data card very inconvenient or can't use at all.
Summary of the invention
In order to address the above problem, to the invention provides the user and realizing the 3G data of multiple modes of operation
Link the method for communicate via communication
The technical solution used in the present invention is, realize the method for the 3G data card connected communication under at least two kinds of operator schemes, the computer system of the method based on operation Linux, configured USB grafting port in system, 3G modem management module and 3G data card equipment feature have been set up in computing machine, the data file of dial-up operation step and AT instruction operation code, when the 3G data card by USB grafting port insertion system, and after being switched to the modulator-demodular unit duty, it is characterized in that, also supportingly in computer system be provided with the handover module that switching 3G data snap into the modulator-demodular unit mode of operation, hot plug module and the dial module of AutoPlay function are provided, in system, realize comprising the following steps in the method for connected communication:
A, 3G modem management module are obtained the tty equipment that the 3G data card of new access is used, and determine and control the tty equipment used, and obtain device descriptive information the storage of 3G data card;
B, while carrying out dial-up operation, at first judge whether the 3G data card is registered, if not registration, exit this step, if register, obtain relevant AT instruction and generate the file that dial module is used from data file, select dialing tty equipment, start dial module, complete dial-up operation;
When C, execution Password Management or information inquiry operate, the regular expression that obtains corresponding AT instruction according to operating function and this AT instruction return message is processed from data file, obtain the parameter of corresponding A T instruction from user's input, the AT instruction is sent in corresponding tty equipment, and receive the information that it returns, with the regular expression obtained, this information is changed into to consolidation form, then result is shown to the user in friendly mode, or further operates according to result.
Described data file is comprised of record, the 3G data card of every corresponding at least one model of record, and record is comprised of occurrence, dialing interface options, AT instruction items, and wherein occurrence is comprised of the sub-project of recording unit feature; The dialing interface options is comprised of the interface characteristics subitem, and the interface characteristics subitem comprises interface number, number of endpoint, interrupt endpoint number, type, subtype, agreement, driving; The AT instruction
Item is processed regular expression by instruction title, elementary instruction, output and is formed, above-mentioned elementary instruction refers to contain one of uncertain parameter and arrives many AT strings of commands, when being used correlation function by the user, parameter determines, and also there is a record that contains all items in file, the occurrence of this record does not have subitem, can mate all 3G data cards
Above-mentioned steps A adopts following methods to realize: the characteristic of obtaining new insertion USB device from the usbfs file system of computing machine, the component devices descriptor, and check whether there is tty equipment relevant with this USB device and support AT instruction, if there is no, show that this is not a 3G modulator-demodular unit, termination, otherwise all satisfactory tty equipment is formed to an available tty list, and the tty equipment used is controlled in a selected conduct arbitrarily, obtain the AT instruction of inquiry login state from described data file, control tty to the 3G data card sends this AT instruction, obtain its Mobile Country Code MCC, Mobile Network Code and login state, and add in the device descriptive information of 3G data card.
In step B, select dialing tty equipment to comprise following steps:
B1, obtain the dialing interface options from data file;
If the indication of the selection mode subitem of B2 dialing interface options is determined dialing tty equipment by Condition Matching, obtain each interface descriptor of 3G data card in the device descriptive information of obtaining from steps A, the option interface descriptor tty equipment corresponding with the interface that each interface characteristics subitem of dialing interface options conforms to is as dialing tty equipment, if this dialing tty establishes
Standby is the definite control of steps A
Tty equipment selects another one to support the tty of AT instruction as controlling tty equipment from above-mentioned available tty list;
If the indication of the selection mode subitem of B3 interface options is determined dialing tty equipment by Dynamic Selection, all tty equipment in available tty list in the facility information obtained is done to following test from steps A:
Use in step B the file that obtains the dial module use to write in tty equipment, then check whether this tty equipment also supports the AT instruction, if do not support the AT instruction, select this tty equipment as dialing tty equipment, if this dialing tty equipment definite control tty equipment that is steps A selects another one to support the tty of AT instruction as controlling tty equipment from above-mentioned available tty list.
In above-mentioned steps, obtain the AT instruction from data file, and the step of dialing interface options is: at first in data file, obtain all records containing the AT instruction items or the dialing interface options that remain to be obtained the AT instruction, whether each apparatus characteristic subitem that checks its occurrence conforms to the device descriptive information of obtaining in steps A, if conform to choose, default records is also selected simultaneously, then the record that the apparatus characteristic subitem of selecting its occurrence to contain is maximum, from then on obtain AT instruction items or the interface options needed in the record, then obtain the regular expression of AT instruction and processing AT instruction rreturn value from the AT instruction items, or determine dialing tty equipment according to the interface options.
The kind of operable 3G data card depends on the number of entry in data file, obtains the management software that the content of record carries from the 3G data card and adds data file to.Mate 3G data card on the market owing to containing multinomial record in data file, and if the information of the new 3G data card inserted is not included in data file, can also be mated according to the record in its device descriptive information and data file, be generated the dial-up profile and the correspondingly AT instruction that are applicable to the new data card.
Therefore, adopt technical scheme provided by the invention, the user can use various 3G data cards easily under linux system,
The accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
The computer system of the method based on operation Linux, in system, configured USB grafting port, and the supporting switching 3G data that are provided with snap into the handover module of modulator-demodular unit mode of operation, the hot plug module that AutoPlay function is provided and PPP dial module.
In computing machine, set up 3G modem management module and with the data file of supporting 3G data card equipment feature, dial-up operation step and the AT instruction operation code of operator scheme kind, data file is comprised of record, the 3G data card of every corresponding at least one model of record, record is comprised of occurrence, dialing interface options, AT instruction items, and wherein occurrence comprises zero to a plurality of apparatus characteristic subitems; The dialing interface options, by the selection mode subitem, reaches zero and forms to a plurality of interface characteristics subitems, and the interface characteristics subitem comprises interface number, number of endpoint, interrupt endpoint number, type, subtype, agreement, driving; The AT instruction items is processed regular expression by instruction title, elementary instruction, output and is formed, above-mentioned elementary instruction refers to contain one of parameter and arrives many AT strings of commands, when being used correlation function by the user, parameter determines, and there is a record that contains all items in file, the occurrence of this record does not have subitem, can mate all 3G data cards.
For concrete 3G data card, only a certain when unavailable in default records, just a record must be set in described configuration file, and this record only needs to comprise the occurrence item different from the default records respective items with other.
The record of corresponding different 3G data cards in data file is to be added in data file after obtaining the management software carried from the 3G data card.
Below provide an example with a record in the data file of XML format description:
Wherein, between two match_item, are occurrences, between two dian_interface_select_item, be dialing interface options, between two AT_item
Being the AT instruction items, is whole records between two record.
A hot plug module is arranged in linux system, event by new interventional instrument on its receiving system bus, when having new equipment to insert, this system can be done preliminary judgement, as think the 3G data card, mode of operation is switched to the modulator-demodular unit duty, and trigger 3G modem management module newly-increased in computing machine.
In the execution step of 3G modem management module, comprise the following steps:
At first, 3G modem management module is obtained the characteristic information of new insertion USB device from the usbfs file system of computing machine, the component devices descriptor, and check whether there is tty equipment relevant with this USB device and support AT instruction, if there is no, show that this is not a 3G modulator-demodular unit, termination, otherwise all satisfactory tty equipment is formed to an available tty list, and the tty equipment used is controlled in a selected conduct arbitrarily, obtain the AT instruction of inquiry login state from described data file, control tty to the 3G data card sends this AT instruction, obtain its Mobile Country Code MCC, Mobile Network Code and login state, and add in the device descriptive information of 3G data card.
Be below/the proc/bus/usb/device file in the content relevant to a 3G data card MF636:
Above information has formed device descriptive information.
When judging whether to have the tty equipment of and support AT instruction relevant with this USB device, whether corresponding tty device file is arranged under check/sys/class/tty/, if have, by the symbol access path of this device file, know the position of equipment on system bus, then with the usbfs file system in the position of this 3G card of showing do contrast, if consistent show to exist a relevant tty equipment.The method of determining the interface that available tty equipment is corresponding is, by its corresponding interface index of symbol access path name acquiring of corresponding tty under/sys/class/tty/.
Judge whether tty equipment supports the method for AT instruction to be: write character string " AT " in this tty equipment, if this tty equipment has output, and output packet shows its support AT instruction containing " AT " character string.
Now, according to device descriptive information, obtain the AT instruction items of corresponding 3G data card from data file, use relevant AT instruction by top definite control operation tty equipment and 3G data card
Communication, obtain its Mobile Country Code MCC (MCC), Mobile Network Code (MNC), and be appended in the device descriptive information of steps A acquisition.If this mode failure, first obtain IMSI, then from IMSI, extract above-mentioned information.Use relevant AT instruction to communicate by letter with the 3G data card by control operation tty device A T instruction, judge whether the 3G data card is registered.
While carrying out dial-up operation, at first judge whether the 3G data card is registered, here be that control tty equipment to this equipment sends relevant AT instruction, from the result of equipment auto-returned, judge, if registration, do not exit this step, if register, obtain relevant AT instruction and generate chat script and the dial-up profile that the PPP dial module is used from data file, select dialing tty equipment.
Obtain the dialing interface options in the selection based on data file of dialing equipment, now at first in data file, obtain the dialing interface options of this 3G data card, if the indication of the selection mode subitem of dialing interface options is determined dialing tty equipment by Condition Matching, obtain each interface descriptor of 3G data card in the device descriptive information of obtaining from steps A, the option interface descriptor tty equipment corresponding with the interface that each interface characteristics subitem of dialing interface options conforms to is as dialing tty equipment, if this dialing tty equipment definite control tty equipment that is steps A, from above-mentioned available tty list, select another one to support the tty of AT instruction as controlling tty equipment,
If the indication of the selection mode subitem of interface options is determined dialing tty equipment by Dynamic Selection, all tty equipment in available tty list in the facility information obtained is done to following test from steps A: obtain the chat script in use step B tty equipment to be measured is carried out to the chat operation, then check whether this tty equipment also supports the AT instruction, if do not support the AT instruction, the tty device responds has been described above-mentioned chat operation, select this tty equipment as dialing tty equipment, if this dialing tty equipment definite control tty equipment that is steps A, from above-mentioned available tty list, select another one to support the tty of AT instruction as controlling tty equipment.Now, start dial module, complete dial-up operation.
While carrying out Password Management or information inquiry operation, the regular expression that obtains corresponding AT instruction according to operating function and this AT instruction return message is processed from data file, obtain the parameter of corresponding A T instruction from user's input, the AT instruction is sent in corresponding tty equipment, and receive the information that it returns, with the regular expression obtained, this information is changed into to consolidation form, when needs will return results while being shown to the user, because message structure does not meet general user's reading habit, the general user is difficult to therefrom obtain Useful Information, therefore information need to be processed, be shown to the user in friendly mode, or further operate according to result.
Obtain the AT instruction from data file, while reaching the dialing interface options, at first obtain all records containing the AT instruction items or the dialing interface options that remain to be obtained the AT instruction in data file, whether each apparatus characteristic subitem that checks its occurrence conforms to the device descriptive information of obtaining in steps A, if conform to choose, default records is also selected simultaneously, then the record that the apparatus characteristic subitem of selecting its occurrence to contain is maximum, from then on obtain AT instruction items or the interface options needed in the record, then obtain the regular expression of AT instruction and processing AT instruction rreturn value from the AT instruction items, or determine dialing tty equipment according to the interface options.
The benefit of said method is to save content data file, and compatible maximum 3G data cards, for a new 3G data card, can find out immediate AT command content.If press record search, for a new 3G data card, will write a configuration record to it, record will write content as much as possible, if do not write some content, just can only use the content in default records.Adopt above-mentioned lookup method can utilize as far as possible the configuration record of existing 3G data card, if certain class 3G data card has a common feature, its AT instruction is identical, can a configuration record be set with regard to this AT instruction, the common trait that the options of this record contains this type of card is just passable.
Claims (4)
1. realize the method for the 3G data card connected communication under at least two kinds of operator schemes, the computer system of the method based on operation Linux, configured USB grafting port in system, 3G modem management module and 3G data card equipment feature have been set up in computing machine, the data file of dial-up operation step and AT instruction operation code, when the 3G data card by USB grafting port insertion system, and after being switched to the modulator-demodular unit duty, it is characterized in that, also supportingly in computer system be provided with the handover module that switching 3G data snap into the modulator-demodular unit mode of operation, hot plug module and the dial module of AutoPlay function are provided, in system, realize comprising the following steps in the method for connected communication:
A, 3G modem management module are obtained the tty equipment that the 3G data card of new access is used, and determine and control the tty equipment used, and obtain device descriptive information the storage of 3G data card;
B, while carrying out dial-up operation, at first judge whether the 3G data card is registered, if not registration, exit this step, if register, obtain relevant AT instruction and generate the file that dial module is used from data file, select dialing tty equipment, start dial module, complete dial-up operation;
When C, execution Password Management or information inquiry operate, the regular expression that obtains corresponding AT instruction according to operating function and this AT instruction return message is processed from data file, obtain the parameter of corresponding A T instruction from user's input, the AT instruction is sent in corresponding tty equipment, and receive the information that it returns, with the regular expression obtained, this information is changed into to consolidation form, then result is shown to the user in friendly mode, or further operates according to result.
2. the method for the 3G data card connected communication under at least two kinds of operator schemes of realization according to claim 1, it is characterized in that: described data file is comprised of record, the 3G data card of every corresponding at least one model of record, record is comprised of occurrence, dialing interface options, AT instruction items, and wherein occurrence is comprised of the sub-project of recording unit feature; The dialing interface options is comprised of the interface characteristics subitem, and the interface characteristics subitem comprises interface number, number of endpoint, interrupt endpoint number, type, subtype, agreement, driving; The AT instruction items is processed regular expression by instruction title, elementary instruction, output and is formed, above-mentioned elementary instruction refers to contain one of uncertain parameter and arrives many AT strings of commands, when being used correlation function by the user, parameter determines, and also there is a record that contains all items in file, the occurrence of this record does not have subitem, can mate all 3G data cards.
3. the method for the 3G data card connected communication under at least two kinds of operator schemes of realization according to claim 1, it is characterized in that: steps A is to adopt following methods to realize: the characteristic of obtaining new insertion USB device from the usbfs file system of computing machine, the component devices descriptor, and check whether there is tty equipment relevant with this USB device and support AT instruction, if there is no, show that this is not a 3G modulator-demodular unit, termination, otherwise all satisfactory tty equipment is formed to an available tty list, and the tty equipment used is controlled in a selected conduct arbitrarily, obtain the AT instruction of inquiry login state from described data file, control tty to the 3G data card sends this AT instruction, obtain its Mobile Country Code MCC, Mobile Network Code and login state, and add in the device descriptive information of 3G data card,
In step B, select dialing tty equipment to comprise following steps:
B1, obtain the dialing interface options from data file;
If the indication of the selection mode subitem of B2 dialing interface options is determined dialing tty equipment by Condition Matching, obtain each interface descriptor of 3G data card in the device descriptive information of obtaining from steps A, the option interface descriptor tty equipment corresponding with the interface that each interface characteristics subitem of dialing interface options conforms to is as dialing tty equipment, if this dialing tty equipment definite control tty equipment that is steps A selects another one to support the tty of AT instruction as controlling tty equipment from above-mentioned available tty list;
B3, if the indication of the selection mode subitem of interface options is determined dialing tty equipment by Dynamic Selection, all tty equipment in available tty list in the facility information obtained is done to following test from steps A: use in step B the file that obtains the dial module use to write in tty equipment, then check whether this tty equipment also supports the AT instruction, if do not support the AT instruction, select this tty equipment as dialing tty equipment, if this dialing tty equipment definite control tty equipment that is steps A, from above-mentioned available tty list, select another one to support the tty of AT instruction as controlling tty equipment.
4. according to the method for the 3G data card connected communication under at least two kinds of operator schemes of the described realization of claim 1 or 3, it is characterized in that: from data file, obtain the AT instruction, and the step of dialing interface options is: at first in data file, obtain all records containing the AT instruction items or the dialing interface options that remain to be obtained the AT instruction, whether each apparatus characteristic subitem that checks its occurrence conforms to the device descriptive information of obtaining in steps A, if conform to choose, default records is also selected simultaneously, then the record that the apparatus characteristic subitem of selecting its occurrence to contain is maximum, from then on obtain AT instruction items or the interface options needed in the record, then obtain the regular expression of AT instruction and processing AT instruction rreturn value from the AT instruction items, or determine dialing tty equipment according to the interface options.
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| CN102665301B (en) * | 2012-03-22 | 2014-10-22 | 福州瑞芯微电子有限公司 | Method for simultaneously supporting internal and external 3G data services on mobile platform and apparatus thereof |
| CN103634944B (en) | 2012-08-20 | 2018-10-26 | 南京中兴新软件有限责任公司 | The operating mode of data card type terminal determines method, apparatus and system |
| CN103677888B (en) * | 2012-09-26 | 2018-09-28 | 上海斐讯数据通信技术有限公司 | USB network card identifies configuration method |
| US8995966B2 (en) * | 2012-12-05 | 2015-03-31 | Google Technology Holdings LLC | Radio interface layer design for smartphones |
| CN103995563A (en) * | 2013-02-17 | 2014-08-20 | 苏州柏奥通信科技有限公司 | Method for achieving extensible 3G communication function of tablet personal computer |
| CN104915306B (en) * | 2014-03-12 | 2018-10-02 | 深圳市顶峰科技有限公司 | A kind of data manipulation control method and equipment manager |
| CN106375163B (en) * | 2016-08-29 | 2019-04-12 | 安徽皖通邮电股份有限公司 | The high speed PPP implementation method of wireless data card on a kind of linux system |
| CN111447656B (en) * | 2020-03-30 | 2022-09-16 | 深圳信可通讯技术有限公司 | Method and device for intelligently switching dial-up networking |
| CN114979072A (en) * | 2022-04-15 | 2022-08-30 | 深圳市广和通无线股份有限公司 | Automatic dialing network access method, host, wireless module and terminal equipment |
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