CN107969006A - A kind of wireless pay terminal cellular network dials up on the telephone the method for automated validation - Google Patents
A kind of wireless pay terminal cellular network dials up on the telephone the method for automated validation Download PDFInfo
- Publication number
- CN107969006A CN107969006A CN201711228882.7A CN201711228882A CN107969006A CN 107969006 A CN107969006 A CN 107969006A CN 201711228882 A CN201711228882 A CN 201711228882A CN 107969006 A CN107969006 A CN 107969006A
- Authority
- CN
- China
- Prior art keywords
- pay terminal
- wireless pay
- telephone
- cellular network
- mode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/168—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] specially adapted for link layer protocols, e.g. asynchronous transfer mode [ATM], synchronous optical network [SONET] or point-to-point protocol [PPP]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
Abstract
Dial up on the telephone the method for automated validation the invention discloses a kind of wireless pay terminal cellular network, is related to wireless device cellular network and dials up on the telephone technical field.Wherein, wireless module sends AT instructions by UART and communicates with MCU, and by being circularly set ppp dialup connections, whether and it is effective to inquire about each authentication mode successively, if mode is effective, the authentication mode is then preserved to FLASH, PPP that can in this way by default when wireless mobile payment terminal is started shooting next time dials up on the telephone authentication mode, the wireless pay terminal authentication mode that dials up on the telephone to cellular network is realized to automatically select, avoid by manually go selection cellular network dial up on the telephone authentication mode bring the drawbacks of.
Description
Technical field
Dial up on the telephone technical field, more particularly to a kind of wireless pay terminal bee the present invention relates to wireless device cellular network
The method of nest network dial online automated validation.
Background technology
Cellular network PPP certifications of dialling up on the telephone are that wireless network logs in the password used, only pass through certification, wireless payment
Terminal can just carry out network communication.
The wireless pay terminal authentication protocol that dials up on the telephone to cellular network includes under normal conditions：PAP(Password
Authenticatio ProtocolProtocol Password Authentication Protocols) and CHAP (Challenge Handshake
Authentication Protocol ol Challenge-Handshake Authentications agreement), PAP is two-way handshake protocol, including PAP8 (8) and
PAP16 (16), verifies user by user name and password；CHAP is three-way handshake agreement, including CHAP8 (8
Position) and CHAP16 (16), by only in transmission over networks user name, not transmitting user password to be verified to user.
At present, it is necessary to which where artificial selection authentication protocol, sometimes, operating personnel can not know selection during certification
Kind authentication protocol is, it is necessary to go to the card personnel rear of opening of the operators such as inquiry movement, unicom may be selected, or be manually entered the above four
Kind authentication mode is verified one by one, so as to not only increase labor workload and the complexity of operation, and is added logical
Interrogate the probability of failure.
The content of the invention
Dial up on the telephone the method for automated validation it is an object of the invention to provide a kind of wireless pay terminal cellular network, from
And solve foregoing problems existing in the prior art.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of wireless pay terminal cellular network dials up on the telephone the method for automated validation, includes the following steps：
S1, detection SIM card whether there is, if it is, performing S2, otherwise returns to error code and terminates；
S2, whether inquiry cellular network has signal, if it is, performing S3, otherwise returns to error code and terminates；
S3, whether inquiry G nets are registered, if it is, performing S4, otherwise return to error code and terminate；
S4, the connection mode for setting 8 ppp to dial, selects PAP8 mode certifications, and whether inquiry is effective, if it is, protecting
PAP8 authentication modes are deposited to FLASH, default authentication mode when starting shooting next time as wireless pay terminal carries out ppp dialing, no
Then, S5 is performed；
S5, selects CHAP8 mode certifications, and whether inquiry is effective, if it is, CHAP8 authentication modes are preserved to FLASH,
Default authentication mode during as wireless pay terminal start next time carries out ppp dialing, otherwise, performs S6；
S6, the connection mode for setting 16 ppp to dial, selects PAP16 mode certifications, and whether inquiry is effective, if it is,
PAP16 authentication modes are preserved to FLASH, default authentication mode when starting shooting next time as wireless pay terminal carries out ppp dialing,
Otherwise, S7 is performed；
S7, selects CHAP16 mode certifications, and whether inquiry is effective, if it is, preserving CHAP16 authentication modes extremely
FLASH, as wireless pay terminal next time start shooting when default authentication mode carry out ppp dialing, otherwise, return S4.
Preferably, S1 is specifically, wireless pay terminal sends AT+CPIN by UARTInstruct to MCU.
Preferably, S2 is specifically, wireless pay terminal sends AT+CSQ by UARTInstruct to MCU.
Preferably, S3 is specifically, wireless pay terminal sends AT+CGREG by UARTInstruct to MCU.
Preferably, the connection mode for setting 8 ppp to dial described in S4, specifically, wireless pay terminal is sent out by UART
Send as given an order to MCU：AT+GTSET=" CHALLENGE ", 8 r.
Preferably, PAP8 mode certifications are selected described in S4, whether inquiry is effective, specifically, wireless pay terminal passes through
UART sends and such as gives an order to MCU：AT+MIPCALL=1, APN, user name, password, 1 r, AT+MIPCALL.
Preferably, CHAP8 mode certifications are selected described in S5, whether inquiry is effective, specifically, wireless pay terminal passes through
UART sends and such as gives an order to MCU：AT+MIPCALL=1, APN, user name, password, 2 r, AT+MIPCALL.
Preferably, the connection mode for setting 16 ppp to dial described in S6, specifically, wireless pay terminal passes through UART
Transmission such as gives an order to MCU：AT+GTSET=" CHALLENGE ", 16 r.
Preferably, PAP16 mode certifications are selected described in S6, whether inquiry is effective, specifically, wireless pay terminal passes through
UART sends and such as gives an order to MCU：AT+MIPCALL=1, APN, user name, password, 1 r, AT+MIPCALL.
Preferably, CHAP16 mode certifications are selected described in S7, whether inquiry is effective, specifically, wireless pay terminal leads to
UART transmissions are crossed such as to give an order to MCU：AT+MIPCALL=1, APN, user name, password, 2 r, AT+MIPCALL.
The beneficial effects of the invention are as follows：Wireless pay terminal cellular network provided in an embodiment of the present invention dials up on the telephone automatically
The method of certification, wireless module sends AT instructions by UART and communicates with MCU, and passes through following flow：Send first
AT+CPIN, detect SIM card and whether there is, secondly send AT+CSQ, the signal quality (signal value) of cellular network is inquired about, so
After send AT+CGREG, inquiry whether registered upper G nets, then by send AT+GTSET=" CHALLENGE ", 8 r, AT+
MIPCALL=1, APN, user name, password, 1 r or AT+GTSET=" CHALLENGE ", 16 r, AT+MIPCALL=1,
APN, user name, password, 2 r, be circularly set ppp dialup connections, and whether inquire about each authentication mode successively effective, if
Mode is effective, then preserves the authentication mode to FLASH, can be in this way as silent when start next time of wireless mobile payment terminal
The PPP recognized dials up on the telephone authentication mode, realizes wireless pay terminal and dials up on the telephone to cellular network the automatic choosing of authentication mode
Select, avoid by manually go selection cellular network dial up on the telephone authentication mode bring the drawbacks of.
Brief description of the drawings
Fig. 1 is that wireless pay terminal cellular network provided in an embodiment of the present invention dials up on the telephone the method flow of automated validation
Schematic diagram；
Fig. 2 is communication means schematic diagram provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.It should be appreciated that the specific embodiments described herein are not used to only to explain the present invention
Limit the present invention.
As shown in Figure 1, dial up on the telephone automated validation an embodiment of the present invention provides a kind of wireless pay terminal cellular network
Method, include the following steps：
S1, detection SIM card whether there is, if it is, performing S2, otherwise returns to error code and terminates；
S2, whether inquiry cellular network has signal, if it is, performing S3, otherwise returns to error code and terminates；
S3, whether inquiry G nets are registered, if it is, performing S4, otherwise return to error code and terminate；
S4, the connection mode for setting 8 ppp to dial, selects PAP8 mode certifications, and whether inquiry is effective, if it is, protecting
PAP8 authentication modes are deposited to FLASH, default authentication mode when starting shooting next time as wireless pay terminal carries out ppp dialing, no
Then, S5 is performed；
S5, selects CHAP8 mode certifications, and whether inquiry is effective, if it is, CHAP8 authentication modes are preserved to FLASH,
Default authentication mode during as wireless pay terminal start next time carries out ppp dialing, otherwise, performs S6；
S6, the connection mode for setting 16 ppp to dial, selects PAP16 mode certifications, and whether inquiry is effective, if it is,
PAP16 authentication modes are preserved to FLASH, default authentication mode when starting shooting next time as wireless pay terminal carries out ppp dialing,
Otherwise, S7 is performed；
S7, selects CHAP16 mode certifications, and whether inquiry is effective, if it is, preserving CHAP16 authentication modes extremely
FLASH, as wireless pay terminal next time start shooting when default authentication mode carry out ppp dialing, otherwise, return S4.
In the above method, when carrying out PPP dial-up connections, selection PAP8, CHAP8, PAP16, CHAP16 are set respectively, such as
Fruit receives module and returns to OK in wherein certain mode of selection, then which is considered as effective means, and in the form of depositing file
Which is stored in FLASH, in PPP dialing when next wireless mobile payment terminal is started shooting in this way by default
Net authentication mode.It is achieved thereby that wireless pay terminal dials up on the telephone cellular network, authentication mode automatically selects, and avoids
By manually go selection cellular network dial up on the telephone authentication mode bring the drawbacks of.
As shown in Fig. 2, in the embodiment of the present invention, wireless pay terminal is to send AT instructions by UART with MCU to be led to
Letter.
S1 is specifically, wireless pay terminal sends AT+CPIN by UARTInstruct to MCU.
S2 is specifically, wireless pay terminal sends AT+CSQ by UARTInstruct to MCU.
S3 is specifically, wireless pay terminal sends AT+CGREG by UARTInstruct to MCU.
The connection mode for setting 8 ppp to dial described in S4, specifically, wireless pay terminal is as follows by UART transmissions
Instruct to MCU：AT+GTSET=" CHALLENGE ", 8 r.
PAP8 mode certifications are selected described in S4, whether inquiry is effective, specifically, wireless pay terminal is sent by UART
Such as give an order to MCU：AT+MIPCALL=1, APN, user name, password, 1 r, AT+MIPCALL.
CHAP8 mode certifications are selected described in S5, whether inquiry is effective, specifically, wireless pay terminal is sent out by UART
Send as given an order to MCU：AT+MIPCALL=1, APN, user name, password, 2 r, AT+MIPCALL.
The connection mode for setting 16 ppp to dial described in S6, specifically, wireless pay terminal is as follows by UART transmissions
Instruct to MCU：AT+GTSET=" CHALLENGE ", 16 r.
PAP16 mode certifications are selected described in S6, whether inquiry is effective, specifically, wireless pay terminal is sent out by UART
Send as given an order to MCU：AT+MIPCALL=1, APN, user name, password, 1 r, AT+MIPCALL.
CHAP16 mode certifications are selected described in S7, whether inquiry is effective, specifically, wireless pay terminal is sent out by UART
Send as given an order to MCU：AT+MIPCALL=1, APN, user name, password, 2 r, AT+MIPCALL.
By using above-mentioned technical proposal disclosed by the invention, following beneficial effect has been obtained：The embodiment of the present invention carries
The wireless pay terminal cellular network of confession dials up on the telephone the method for automated validation, wireless module by UART send AT instructions with
MCU communicates, and passes through following flow：AT+CPIN is sent first, detect SIM card and whether there is, secondly send AT+
CSQ, the signal quality (signal value) of cellular network is inquired about, then sends AT+CGREG, inquiry whether registered upper G nets, then
By send AT+GTSET=" CHALLENGE ", 8 r, AT+MIPCALL=1, APN, user name, password, 1 r or AT+
GTSET=" CHALLENGE ", 16 r, AT+MIPCALL=1, APN, user name, password, 2 r, be circularly set ppp dialing and connect
Mode is connect, and whether effective, if mode is effective, preserves the authentication mode to FLASH, treat nothing if inquiring about each authentication mode successively
PPP that can in this way by default during start next time of line Mobile payment terminal dials up on the telephone authentication mode, realizes wireless branch
Pay terminal-pair cellular network to dial up on the telephone the automatically selecting of authentication mode, avoid by manually going selection cellular network to dial up on the telephone
The drawbacks of authentication mode is brought.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
Depending on protection scope of the present invention.
Claims (10)
- A kind of method of automated validation 1. wireless pay terminal cellular network dials up on the telephone, it is characterised in that include the following steps：S1, detection SIM card whether there is, if it is, performing S2, otherwise returns to error code and terminates；S2, whether inquiry cellular network has signal, if it is, performing S3, otherwise returns to error code and terminates；S3, whether inquiry G nets are registered, if it is, performing S4, otherwise return to error code and terminate；S4, the connection mode for setting 8 ppp to dial, selects PAP8 mode certifications, and whether inquiry is effective, if it is, preserving For PAP8 authentication modes to FLASH, default authentication mode when starting shooting next time as wireless pay terminal carries out ppp dialing, otherwise, Perform S5；S5, selects CHAP8 mode certifications, and whether inquiry is effective, if it is, CHAP8 authentication modes are preserved to FLASH, as Default authentication mode during wireless pay terminal start next time carries out ppp dialing, otherwise, performs S6；S6, the connection mode for setting 16 ppp to dial, selects PAP16 mode certifications, and whether inquiry is effective, if it is, preserving For PAP16 authentication modes to FLASH, default authentication mode when starting shooting next time as wireless pay terminal carries out ppp dialing, no Then, S7 is performed；S7, selects CHAP16 mode certifications, and whether inquiry is effective, if it is, preserving CHAP16 authentication modes to FLASH, makees Default authentication mode when starting shooting for wireless pay terminal is next carries out ppp dialing, otherwise, returns to S4.
- The method of automated validation 2. wireless pay terminal cellular network according to claim 1 dials up on the telephone, its feature exist In S1 is specifically, wireless pay terminal sends AT+CPIN by UARTInstruct to MCU.
- The method of automated validation 3. wireless pay terminal cellular network according to claim 1 dials up on the telephone, its feature exist In S2 is specifically, wireless pay terminal sends AT+CSQ by UARTInstruct to MCU.
- The method of automated validation 4. wireless pay terminal cellular network according to claim 1 dials up on the telephone, its feature exist In S3 is specifically, wireless pay terminal sends AT+CGREG by UARTInstruct to MCU.
- The method of automated validation 5. wireless pay terminal cellular network according to claim 1 dials up on the telephone, its feature exist In, the connection mode for setting 8 ppp to dial described in S4, specifically, wireless pay terminal sent by UART such as give an order to MCU：AT+GTSET=" CHALLENGE ", 8 r.
- The method of automated validation 6. wireless pay terminal cellular network according to claim 5 dials up on the telephone, its feature exist In selection PAP8 mode certifications described in S4, whether inquiry is effective, specifically, wireless pay terminal is as follows by UART transmissions Instruct to MCU：AT+MIPCALL=1, APN, user name, password, 1 r, AT+MIPCALL.
- The method of automated validation 7. wireless pay terminal cellular network according to claim 5 dials up on the telephone, its feature exist In selection CHAP8 mode certifications described in S5, whether inquiry is effective, specifically, wireless pay terminal is as follows by UART transmissions Instruct to MCU：AT+MIPCALL=1, APN, user name, password, 2 r, AT+MIPCALL.
- The method of automated validation 8. wireless pay terminal cellular network according to claim 1 dials up on the telephone, its feature exist In the connection mode for setting 16 ppp to dial described in S6, such as gives an order specifically, wireless pay terminal is sent by UART To MCU：AT+GTSET=" CHALLENGE ", 16 r.
- The method of automated validation 9. wireless pay terminal cellular network according to claim 8 dials up on the telephone, its feature exist In selection PAP16 mode certifications described in S6, whether inquiry is effective, specifically, wireless pay terminal is as follows by UART transmissions Instruct to MCU：AT+MIPCALL=1, APN, user name, password, 1 r, AT+MIPCALL.
- The method of automated validation 10. wireless pay terminal cellular network according to claim 8 dials up on the telephone, its feature exist In selection CHAP16 mode certifications described in S7, whether inquiry is effective, specifically, wireless pay terminal is sent such as by UART Give an order to MCU：AT+MIPCALL=1, APN, user name, password, 2 r, AT+MIPCALL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711228882.7A CN107969006B (en) | 2017-11-29 | 2017-11-29 | Method for automatically authenticating dial-up networking of wireless payment terminal cellular network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711228882.7A CN107969006B (en) | 2017-11-29 | 2017-11-29 | Method for automatically authenticating dial-up networking of wireless payment terminal cellular network |
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| CN107969006A true CN107969006A (en) | 2018-04-27 |
| CN107969006B CN107969006B (en) | 2020-11-06 |
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| CN201711228882.7A Active CN107969006B (en) | 2017-11-29 | 2017-11-29 | Method for automatically authenticating dial-up networking of wireless payment terminal cellular network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944407A (en) * | 2019-11-21 | 2020-03-31 | 北京连山时代科技有限公司 | Dialing networking method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536508A (en) * | 2003-04-09 | 2004-10-13 | 华为技术有限公司 | Method for displaying door web page based on Ethernet protocol when the user is logged |
| CN1859089A (en) * | 2005-04-30 | 2006-11-08 | 华为技术有限公司 | Method for configurating terminal device |
| CN101060519A (en) * | 2006-04-19 | 2007-10-24 | 上海贝尔阿尔卡特股份有限公司 | A control method and its device for the user to dial with the specified dialing program |
| US20080225749A1 (en) * | 2007-03-13 | 2008-09-18 | Dennis Peng | Auto-configuration of a network device |
| CN101540946A (en) * | 2009-04-01 | 2009-09-23 | 神州数码网络(北京)有限公司 | Finance website terminal wireless long range automatic on and off-line system and method |
-
2017
- 2017-11-29 CN CN201711228882.7A patent/CN107969006B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536508A (en) * | 2003-04-09 | 2004-10-13 | 华为技术有限公司 | Method for displaying door web page based on Ethernet protocol when the user is logged |
| CN1859089A (en) * | 2005-04-30 | 2006-11-08 | 华为技术有限公司 | Method for configurating terminal device |
| CN101060519A (en) * | 2006-04-19 | 2007-10-24 | 上海贝尔阿尔卡特股份有限公司 | A control method and its device for the user to dial with the specified dialing program |
| US20080225749A1 (en) * | 2007-03-13 | 2008-09-18 | Dennis Peng | Auto-configuration of a network device |
| CN101540946A (en) * | 2009-04-01 | 2009-09-23 | 神州数码网络(北京)有限公司 | Finance website terminal wireless long range automatic on and off-line system and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944407A (en) * | 2019-11-21 | 2020-03-31 | 北京连山时代科技有限公司 | Dialing networking method and device |
| CN110944407B (en) * | 2019-11-21 | 2021-06-08 | 北京连山科技股份有限公司 | Dialing networking method and device |
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| Publication number | Publication date |
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| CN107969006B (en) | 2020-11-06 |
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