CN105578460A - Method and system for rapidly searching for SSIDs on the basis of Internet of vehicles - Google Patents
Method and system for rapidly searching for SSIDs on the basis of Internet of vehicles Download PDFInfo
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- CN105578460A CN105578460A CN201510946363.9A CN201510946363A CN105578460A CN 105578460 A CN105578460 A CN 105578460A CN 201510946363 A CN201510946363 A CN 201510946363A CN 105578460 A CN105578460 A CN 105578460A
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- Prior art keywords
- ssid
- password
- drive recorder
- car networking
- string
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
Abstract
The invention provides a method and system for rapidly searching for SSIDs on the basis of Internet of vehicles. The method for rapidly searching for the SSIDs on the basis of the Internet of vehicles comprises the following steps: S1, writing an SSID and a password of a wireless communication module into a file of an SD card, in case of success, skipping to the second step, and otherwise, skipping to the third step; S2, reading the SSID and the password in the SD card, tying connection, in case of success, skipping to the fourth step, and otherwise, skipping to the fifth step; S3, reading an SSID and a password in a FLASH, tying connection, in case of success, skipping to the fourth step, and otherwise, skipping to the fifth step; S4, performing connection and writing the correct SSID and the correct password of this time into the FLASH; S5, searching for SSIDS around and calculating passwords corresponding thereto; and S6, successively trying to connect each obtained SSID. According to the invention, it can be ensured that vehicles can be rapidly and effectively accessed to 4G networks of the SSIDs.
Description
Technical field
The present invention relates to a kind of method of searching for SSID, particularly relate to a kind of method based on car networking fast search SSID, and relate to and have employed this system based on the method for car networking fast search SSID.
Background technology
Existing traditional vehicle-mounted connection 4G mode is SSID all around drive recorder search, and get the corresponding password calculated of each SSID by password conversion method, then go to attempt connecting with the SSID searched and the password calculated, until successful connection, just think and be connected to the success of 4G module, the main shortcoming of this mode is consuming time.
Summary of the invention
Technical problem to be solved by this invention needs to provide a kind of method based on car networking fast search SSID that automobile can be made to be connected to 4G module fast, and provide and have employed this system based on the method for car networking fast search SSID.
To this, the invention provides a kind of method based on car networking fast search SSID, comprise the following steps:
Step S1, automobile when the system is first powered on, creates a file in the SD card of drive recorder, SSID corresponding to wireless communication module and password are write in this file, and judge that whether write is successful, if then jump to step S2, if no, jump to step S3;
Step S2, waits for until after drive recorder and wireless communication module all power on, and reads SSID in SD card and password, and attempts this SSID of connection, if successful connection, jump to step S4, if connection failure, jump to step S5 by drive recorder;
Step S3, waiting for until after drive recorder and wireless communication module all power on, by reading the SSID and password that are stored in drive recorder FLASH, and attempting connecting this SSID, if successful connection, jump to step S4, if connection failure, jump to step S5;
Step S4, connects wireless communication module and by the FLASH of this correct SSID and password write drive recorder;
Step S5, drive recorder search SSID around, and calculate the password corresponding to each SSID;
Step S6, attempts successively connecting to each SSID that step S5 obtains, if successful connection, jumps to step S4, if connection failure, return step S5 and then obtain next SSID and password thereof.
Further improvement of the present invention is, in described step S4, after the FLASH of the SSID correct by this time and password write drive recorder, delete the file of SD card the inside preservation SSID and password, and reading and saving SSID inside and password from FLASH automatically when connecting next time.
Further improvement of the present invention is, each SSID password that all correspondence one is unique.
Further improvement of the present invention is, password corresponding to described SSID is calculated by predefined password conversion function, its account form for: the character string of the SSID corresponding to wireless communication module is put into predefined password conversion function, the character string of described password conversion function to SSID is encrypted, and then obtains the password corresponding to this SSID according to the character string after encryption.
Further improvement of the present invention is, automobile upper once power on time, directly enter step S3 and the SSID be stored in described drive recorder FLASH and password read.
Further improvement of the present invention is, described step S5 comprises following sub-step:
Step S501, is searched for by drive recorder and SSID near obtaining;
Step S502, takes out the character string of SSID, is translated into password string by predefined password conversion function;
Step S503, the ASCII character corresponding according to password string, is converted into 16 corresponding binary digits, and this 16 binary digits is established as password corresponding to this SSID by password string.
Further improvement of the present invention is, in described step S502, takes out 5 ~ 12 characters in the character string of SSID and carries out transferring to for password string.
Further improvement of the present invention is, in described step S503, takes out 5 ~ 12 characters in 16 binary digits as password corresponding to this SSID.
Further improvement of the present invention is, wireless communication module is 4G module, and in described step S1, the SSID that 4G module is corresponding and password obtaining step thereof comprise following sub-step:
Step S101, sets its SSID by 4G module;
Step S102, takes out the character string of SSID, is translated into password string by predefined password conversion function;
Step S103, the ASCII character corresponding according to password string, is converted into 16 corresponding binary digits by password string, and the password that the SSID that this 16 binary digits is established as this 4G module is corresponding.
The present invention also provides a kind of system based on car networking fast search SSID, have employed as above based on the method for car networking fast search SSID.
Compared with prior art, beneficial effect of the present invention is: after automobile powers on, first SSID and password can be read from the SD card the inside inside drive recorder, if there is not SSID and password inside the SSID of SD card the inside and password bad or SD card, then from the FLASH of drive recorder, obtain SSID and password, if the SSID that these two kinds of modes get and password all have problems, then adopt SSID search, and calculate password successively, carry out connection successively to attempt, finally correct SSID is write in FLASH; Like this, in automobile once powers on, just directly can get correct SSID and password from FLASH, as long as that is SSID and password obtain correctly, later each connection is exactly directly inside FLASH, read SSID and password, can ensure that SSID can be connected rapidly like this, greatly facilitate vast user vehicle.
Accompanying drawing explanation
Fig. 1 is the workflow schematic diagram of an embodiment of the present invention;
Fig. 2 is SSID and the password coupling schematic flow sheet of an embodiment of the present invention;
Fig. 3 is the password conversion schematic flow sheet of an embodiment of the present invention after drive recorder obtains SSID;
Fig. 4 is the password conversion schematic flow sheet that an embodiment of the present invention sets SSID in 4G module.
Embodiment
Below in conjunction with accompanying drawing, preferably embodiment of the present invention is described in further detail:
As shown in Figure 1, this example provides a kind of method based on car networking fast search SSID, comprises the following steps:
Step S1, automobile when the system is first powered on, creates a file in the SD card of drive recorder, SSID corresponding to wireless communication module and password are write in this file, and judge that whether write is successful, if then jump to step S2, if no, jump to step S3;
Step S2, waits for until after drive recorder and wireless communication module all power on, and reads SSID in SD card and password, and attempts this SSID of connection, if successful connection, jump to step S4, if connection failure, jump to step S5 by drive recorder;
Step S3, waiting for until after drive recorder and wireless communication module all power on, by reading the SSID and password that are stored in drive recorder FLASH, and attempting connecting this SSID, if successful connection, jump to step S4, if connection failure, jump to step S5;
Step S4, connects wireless communication module and by the FLASH of this correct SSID and password write drive recorder;
Step S5, drive recorder search SSID around, and calculate the password corresponding to each SSID;
Step S6, attempts successively connecting to each SSID that step S5 obtains, if successful connection, jumps to step S4, if connection failure, return step S5 and then obtain next SSID and password thereof.
This routine described wireless communication module is preferably 4G module, and described SSID is the service set of the wireless signal that router sends; This example changes traditional SSID access way, this example stores SSID and password thereof based on file and memory device, greatly reduce traditional approach like this and connect 4G all by searching for the time overhead that SSID brings at every turn, and different from traditional SSID password rule, the invention provides a kind of method being adaptive to SSID and password thereof.
In this routine described step S4, after the FLASH of the SSID correct by this time and password write drive recorder, delete the file of SD card the inside preservation SSID and password, and reading and saving SSID inside and password from FLASH automatically when connecting next time.As long as that is SSID and password obtain correct after, each connection is exactly directly inside FLASH, read SSID and password later, can ensure that SSID is connected rapidly like this, greatly facilitate vast user vehicle.
Each SSID of this example password that all correspondence one is unique; Password corresponding to described SSID is calculated by predefined password conversion function, its account form for: the character string of the SSID corresponding to wireless communication module is put into predefined password conversion function, the character string of described password conversion function to SSID is encrypted, and then obtains the password corresponding to this SSID according to the character string after encryption.This routine described SSID and password coupling schematic flow sheet are as shown in Figure 2, password converts and is not limited to a certain existing general-purpose algorithm, password converts the SQL that both can have been converted according to logic by programming personnel, also can be existing universal code function, such as, password is calculated by existing DES or RSA scheduling algorithm function, like this, conveniently can either calculate with it password one to one by SSID, can also effectively prevent password to be decrypted simultaneously.
Described automobile upper once power on time, directly enter step S3 and the SSID be stored in described drive recorder FLASH and password read.Automobile is non-power on first in, directly enter step S3 to read the SSID be stored in described drive recorder FLASH and password, step S1 and step S2 can be skipped, and then automatically reading and saving SSID inside and password from FLASH, can ensure that SSID is connected rapidly, greatly facilitate vast user vehicle.
As shown in Figure 3, this routine described step S5 comprises following sub-step:
Step S501, is searched for by drive recorder and SSID near obtaining;
Step S502, takes out the character string of SSID, is translated into password string by predefined password conversion function;
Step S503, the ASCII character corresponding according to password string, is converted into 16 corresponding binary digits, and this 16 binary digits is established as password corresponding to this SSID by password string.
In this routine described step S502, take out 5 ~ 12 characters in the character string of SSID and carry out transferring to for password string, described step S502 is preferably last 8 characters in the character string of taking out SSID to carry out transferring to for password string.In this routine described step S503, take out 5 ~ 12 characters in 16 binary digits as password corresponding to this SSID, described step S503 is preferably last 8 characters in taking-up 16 binary digits as password corresponding to this SSID.
As shown in Figure 4, this routine described wireless communication module is 4G module, and in described step S1, the SSID that 4G module is corresponding and password obtaining step thereof comprise following sub-step:
Step S101, sets its SSID by 4G module;
Step S102, takes out the character string of SSID, is translated into password string by predefined password conversion function;
Step S103, the ASCII character corresponding according to password string, is converted into 16 corresponding binary digits by password string, and the password that the SSID that this 16 binary digits is established as this 4G module is corresponding.
In car networked system, 4G module provides the SSID of wireless Internet access, and drive recorder realizes online by 4G module.4G module sets the password corresponding to its SSID by password conversion method, and drive recorder then needs could realize function of surfing the Net by the correct password corresponding to this SSID and SSID.
Existing traditional mode is SSID all around drive recorder search, and get the corresponding password calculated of each SSID by password conversion method, then go to attempt connecting with the SSID searched and the password calculated, until successful connection, just think and be connected to the success of 4G module, the main shortcoming of this mode is consuming time.
This example gives a kind of method based on car networking fast search SSID, the method mainly comprises: create a file in the SD card the inside of drive recorder, the SSID of 4G module and password are written to this file, first the file reading this SD card the inside is just removed in automobile data recorder system initiating switchup process, and connect the SSID and password thereof that read out, the method accurately and timely can ensure that the height real-time that WIFI connects and accuracy, and concrete workflow schematic diagram as shown in Figure 1.
Described SSID is our usually said WIFI title, the SSID that such as RL_W8AQ1GWC is such, password corresponding to SSID and WIFI online password, SSID and password are one to one, password corresponding to SSID is calculated by password conversion algorithm, this password conversion method principle is such, step S1, the character string of the SSID corresponding to 4G module is put into password conversion function, the character string of SSID is encrypted by password conversion function, and by last several in the character string after encryption, as last 8 are taken out, and be set as 4G module online password, namely the password corresponding to this SSID, then this SSID and password are write in the SD card of drive recorder, perform step S2, otherwise perform step S3.
Step S2, after drive recorder and 4G module all power on, drive recorder reads SSID and the password of SD card the inside, and goes to connect this SSID, if successful connection, then connect upper 4G module, and by the FLASH of SSID and password write drive recorder, and delete SD card the inside preservation SSID and the file of password, upper once connect in from FLASH reading and saving SSID inside and password, if connection failure, then step S3.
Step S3, drive recorder search SSID around, and calculating the password corresponding to each SSID by password conversion method, this password conversion method is consistent with the algorithm of the close conversion function described in step S1, and uses each SSID to go successively to connect, if successful connection, then illustrate and be connected to 4G module, by the SSID of correspondence and password write drive recorder, otherwise connection failure, connect the next SSID got, its workflow schematic diagram as shown in Figure 2.
In described step S4, if drive recorder is after executing above-mentioned steps, during later power-off restarting, drive recorder can read and be stored in SSID in FLASH and password from FLASH, and directly connects this SSID, can connect rapidly 4G module.
The workflow schematic diagram of the SSID that this example searches for drive recorder and its password conversion method as shown in Figure 3, the SSID of 4G module and its password conversion method are as shown in Figure 4, its method is all the same, according to SSID name, the password corresponding to 4G module is calculated by our password conversion function, just be set in inside 4G module after the password that the SSID of 4G module is corresponding converts, drive recorder only gets the SSID of 4G module and correct password, could successfully be connected to 4G module, therefore drive recorder often obtains a SSID, capital uses this method once to convert, until after obtaining correct SSID, correct password could be got by this method, thus successfully connect 4G module.
This example is after automobile powers on, first SSID and password can be read from the SD card the inside inside drive recorder, if there is not SSID and password inside the SSID of SD card the inside and password bad or SD card, then from the FLASH of drive recorder, obtain SSID and password, if the SSID that these two kinds of modes get and password all have problems, then adopt SSID search, and calculate password successively, carry out connection successively to attempt, finally correct SSID is write in FLASH; Like this, in automobile once powers on, just directly can get correct SSID and password from FLASH, as long as that is SSID and password obtain correctly, later each connection is exactly directly inside FLASH, read SSID and password, can ensure that SSID can be connected rapidly like this, greatly facilitate vast user vehicle.
The present invention also provides a kind of system based on car networking fast search SSID, have employed as above based on the method for car networking fast search SSID.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1., based on a method of car networking fast search SSID, it is characterized in that, comprise the following steps:
Step S1, automobile when the system is first powered on, creates a file in the SD card of drive recorder, SSID corresponding to wireless communication module and password are write in this file, and judge that whether write is successful, if then jump to step S2, if no, jump to step S3;
Step S2, waits for until after drive recorder and wireless communication module all power on, and reads SSID in SD card and password, and attempts this SSID of connection, if successful connection, jump to step S4, if connection failure, jump to step S5 by drive recorder;
Step S3, waiting for until after drive recorder and wireless communication module all power on, by reading the SSID and password that are stored in drive recorder FLASH, and attempting connecting this SSID, if successful connection, jump to step S4, if connection failure, jump to step S5;
Step S4, connects wireless communication module and by the FLASH of this correct SSID and password write drive recorder;
Step S5, drive recorder search SSID around, and calculate the password corresponding to each SSID;
Step S6, attempts successively connecting to each SSID that step S5 obtains, if successful connection, jumps to step S4, if connection failure, return step S5 and then obtain next SSID and password thereof.
2. the method based on car networking fast search SSID according to claim 1, it is characterized in that, in described step S4, after the SSID correct by this time and password write the FLASH of drive recorder, delete the file of SD card the inside preservation SSID and password, and reading and saving SSID inside and password from FLASH automatically when connecting next time.
3. the method based on car networking fast search SSID according to claim 1, is characterized in that, each SSID password that all correspondence one is unique.
4. the method based on car networking fast search SSID according to claim 1, it is characterized in that, password corresponding to described SSID is calculated by predefined password conversion function, its account form for: the character string of the SSID corresponding to wireless communication module is put into predefined password conversion function, the character string of described password conversion function to SSID is encrypted, and then obtains the password corresponding to this SSID according to the character string after encryption.
5. the method based on car networking fast search SSID according to Claims 1-4 any one, is characterized in that, automobile upper once power on time, directly enter step S3 and the SSID be stored in described drive recorder FLASH and password read.
6. the method based on car networking fast search SSID according to Claims 1-4 any one, it is characterized in that, described step S5 comprises following sub-step:
Step S501, is searched for by drive recorder and SSID near obtaining;
Step S502, takes out the character string of SSID, is translated into password string by predefined password conversion function;
Step S503, the ASCII character corresponding according to password string, is converted into 16 corresponding binary digits, and this 16 binary digits is established as password corresponding to this SSID by password string.
7. the method based on car networking fast search SSID according to claim 6, is characterized in that, in described step S502, takes out 5 ~ 12 characters in the character string of SSID and carries out transferring to for password string.
8. the method based on car networking fast search SSID according to claim 6, is characterized in that, in described step S503, takes out 5 ~ 12 characters in 16 binary digits as password corresponding to this SSID.
9. the method based on car networking fast search SSID according to Claims 1-4 any one, it is characterized in that, wireless communication module is 4G module, and in described step S1, the SSID that 4G module is corresponding and password obtaining step thereof comprise following sub-step:
Step S101, sets its SSID by 4G module;
Step S102, takes out the character string of SSID, is translated into password string by predefined password conversion function;
Step S103, the ASCII character corresponding according to password string, is converted into 16 corresponding binary digits by password string, and the password that the SSID that this 16 binary digits is established as this 4G module is corresponding.
10. based on a system of car networking fast search SSID, it is characterized in that, have employed the method based on car networking fast search SSID as described in claim 1 to 9 any one.
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| CN201510946363.9A CN105578460A (en) | 2015-12-16 | 2015-12-16 | Method and system for rapidly searching for SSIDs on the basis of Internet of vehicles |
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| CN201510946363.9A CN105578460A (en) | 2015-12-16 | 2015-12-16 | Method and system for rapidly searching for SSIDs on the basis of Internet of vehicles |
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Patent Citations (4)
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| EP1545146A2 (en) * | 2003-12-16 | 2005-06-22 | Samsung Electronics Co., Ltd. | Providing information in interworking between mobile communication network and wireless local area network |
| CN102065180A (en) * | 2010-12-31 | 2011-05-18 | 苏州佳世达电通有限公司 | Method for quickening power-on speed of mobile phone |
| CN102970766A (en) * | 2012-11-26 | 2013-03-13 | 广东好帮手电子科技股份有限公司 | Method and system for automatically carrying out WIFI (Wireless Fidelity) connection on vehicular host and mobile phone |
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