CN101237704A - An attendance checking method and system based on mobile communication technology - Google Patents
An attendance checking method and system based on mobile communication technology Download PDFInfo
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- CN101237704A CN101237704A CNA2008100654927A CN200810065492A CN101237704A CN 101237704 A CN101237704 A CN 101237704A CN A2008100654927 A CNA2008100654927 A CN A2008100654927A CN 200810065492 A CN200810065492 A CN 200810065492A CN 101237704 A CN101237704 A CN 101237704A
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Abstract
The invention provides an attendance checking method and an attendance checking system based on mobile communication technology, wherein an attendance checking terminal is adopted to carry out automatic network searching of a base station and resides in a base station with strongest signal; the strongest base station searched by the attendance checking terminal is taken as an attendance checking base station to which a special wireless link message is sent; the attendance checking terminal receives the response message of the wireless link of the attendance checking base station; the attendance checking base station extracts the identification of the attendance checking terminal and sends the identification to an attendance checking platform through a base station controller and a main processing unit; after receiving the information, the attendance checking platform stores the data such as the identification and the time of the attendance checking terminal in a database. Because the attendance checking base station has a special identification CSID (base station identification), no system resource is occupied and a user can carry out automatic attendance checking without adopting special operation; moreover, multi-user attendance checking is carried out at the same time, which solves the problem of resource waste in the prior attendance checking system.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of system and method that the attendance record terminal holder is carried out work attendance.
Background technology
A kind of attendance management method and system based on short message are arranged in the prior art, and it adopts the base station to form a work attendance district, and the work attendance identification signal is launched in described base station in this work attendance district; Deposit a work attendance identification signal response unit in a mobile communication terminal, when described mobile communication terminal receives described work attendance identification signal, described work attendance identification signal response unit judges whether described mobile communication terminal enters described work attendance district, if described mobile communication terminal enters described work attendance district, described mobile communication terminal sends SMS message to described base station registration work attendance information; After the registration work attendance success, described base station is successful to the described work attendance information registering of described mobile communication terminal feedback acknowledgment short message notification, and described work attendance information is sent into the work attendance monitoring computer; The described work attendance information stores that the attendance management unit of described work attendance monitoring computer storage will receive is in database.
There is following shortcoming in said system:
One, needs the base station in work attendance district in this work attendance district, to launch the work attendance identification signal, take the resource of system;
Two, communication terminal sends short messages to work attendance base station registration work attendance information, and chronic, the inapplicable while, many users carried out work attendance;
Three, communication terminal needs continuous detection whether to receive the work attendance identification signal.Therefore there is defective in prior art, and awaits improving and development.
Summary of the invention
The objective of the invention is at above-mentioned shortcoming and defect, proposed a kind ofly can carry out work attendance fast, take system resource seldom, terminal is carved Work attendance method and the attendance checking system that detects the work attendance identification signal when not required.
Technical scheme of the present invention is as follows:
A kind of Work attendance method based on mobile communication technology wherein, comprises the steps:
A, attendance record terminal standby in the base station down and carry out web search, described attendance record terminal searches strong basis station and according to the sign of standby base station, judges whether standby base station is the work attendance base station, if the work attendance base station enters step B, otherwise enters holding state;
B, described attendance record terminal send the request of work attendance link setup to described work attendance base station, after described work attendance base station receives described request, give described attendance record terminal with the response message of feedback Radio Link, after described attendance record terminal receives described response message, finish work attendance.
Described method wherein, also comprises the steps:
C, described work attendance base station will be according to after the described work attendance link setup request that is received, the sign of extracting described attendance record terminal sends to the work attendance platform by base station controller and Main Processor Unit, and described work attendance platform is kept at information such as the sign of the attendance record terminal that receives and time in the database.
Described method, wherein, described step B also comprises the steps:
B1, described attendance record terminal start retransmission timer when sending the request of work attendance link setup, receive described work attendance response when described attendance record terminal, stop retransmission timer, retransmit the number of times zero clearing, finish work attendance;
When B2, described attendance record terminal send the request of work attendance link setup and do not meet with a response to described work attendance base station, described attendance record terminal continues to send the work attendance request, when described retransmission timer overtime, described attendance record terminal judges that whether the repeating transmission number of times is less than threshold value, if enter step B3, otherwise retransmit the number of times zero clearing, finish work attendance;
B3, repeating transmission number of times are retransmitted number of times and are added one less than threshold value, and described attendance record terminal sends the request of described work attendance link setup and starts retransmission timer to described work attendance base station, continues work attendance.
Described method, wherein, the span of described threshold value is not more than 6.
Described method, wherein, the specific identifier (bit) of described work attendance base station is 1.
Described method, wherein, described work attendance link setup request system type is 010.
Described method, wherein, the information that described work attendance platform is preserved comprises time, latitude and longitude of base station, mobile terminal identification and fuselage number.
A kind of attendance checking system based on mobile communication technology, comprise attendance record terminal, work attendance base station and background processing system, wherein, described attendance record terminal is used for standby in the base station down and carry out web search, and described attendance record terminal searches strong basis station and according to the sign of standby base station, judge whether to initiate the work attendance flow process, initiate work attendance and finish work attendance;
Described work attendance base station, the work attendance position that is used to be provided with Base Station Identification is the work attendance sign, after the work attendance link setup request of described attendance record terminal is received in described work attendance base station, return attendance record terminal link setup response message, and send work attendance information to described background processing system to described attendance record terminal.
Described system, wherein, described background processing system comprises: base station controller, Main Processor Unit and work attendance platform, wherein,
Described base station controller, link to each other with described Main Processor Unit with described work attendance base station, be used to receive the work attendance message of described work attendance base station, obtain the index of described work attendance base station and the sign and the fuselage number of attendance record terminal, and described content is sent to described Main Processor Unit;
Described Main Processor Unit, link to each other with described work attendance platform with described base station controller, be used to receive the work attendance message of described base station controller, index according to described work attendance base station obtains the longitude and latitude of work attendance base station and the sign and the fuselage number of attendance record terminal, and described content is sent to described work attendance platform;
Described work attendance platform links to each other with described Main Processor Unit, is used to receive the work attendance message of described Main Processor Unit, the sign of current time, work attendance latitude and longitude of base station, attendance record terminal and fuselage number is saved in database after receiving message.
A kind of Work attendance method and attendance checking system provided by the present invention based on mobile communication technology, adopted by attendance record terminal to come automatically web search to be carried out in the base station and be stationed on the strongest base station of signal, the strong basis station that attendance record terminal searches is the work attendance base station, and send special Radio Link message to the work attendance base station, attendance record terminal receives that the response message of work attendance base station radio link just finishes work attendance, because there is the special identifier CSID (sign of base station) of oneself the work attendance base station, can not take the resource of system like this, the user does not need to carry out special operation, automatically carry out work attendance, and can carry out multi-user's work attendance simultaneously, solved the problem of the wasting of resources in the existing attendance checking system.
Description of drawings
Fig. 1 is an attendance checking system structure chart of the present invention;
Fig. 2 is the CSID structure chart of work attendance of the present invention base station;
Fig. 3 is work attendance link setup request message structure figure of the present invention;
Fig. 4 for of the present invention be the total signal flow graph of attendance checking system;
Fig. 5 is an attendance record terminal work attendance signal flow graph of the present invention.
Embodiment
The invention provides a kind of Work attendance method and attendance checking system based on mobile communication technology, clearer, clear and definite for making purpose of the present invention, technical scheme and advantage, below the present invention is described in more detail with reference to accompanying drawing.
In order to solve existing occupying system resources and long problem of work attendance time in existing attendance checking system and work attendance process, the present invention has used a kind of by attendance record terminal, the method that the system of work attendance base station and work attendance platform institute framework carries out work attendance, it comprises: the first step, the attendance record terminal search network also enters holding state, when attendance record terminal searches strong basis station and according to the sign of standby base station, judges when standby base station is the work attendance base station, send the request of work attendance link setup to the work attendance base station; Second step after the work attendance base station receives the work attendance link setup request that attendance record terminal sends, will feed back to the response message of attendance record terminal one Radio Link, and this moment, attendance record terminal just finished work attendance; The 3rd step, the work attendance base station will be according to the special Radio Link link setup request that is received, the sign of extracting attendance record terminal sends to the work attendance platform by base station controller and Main Processor Unit, after the work attendance platform is received this information, data such as the sign of attendance record terminal and time are kept in the database, so that the keeper inquires about with management software and the work attendance information of statistics attendance record terminal.
The present invention has adopted the system that is used for portable terminal is carried out quick work attendance as shown in Figure 1 according to this method, this system is based on the mobile subscriber is carried out work attendance in a radio area network, comprising: attendance record terminal, work attendance base station, base station controller, Main Processor Unit and work attendance platform; Its operation principle is: during mobile terminal standby, find that standby base station is the work attendance base station, send special link setup request to the work attendance base station, the work attendance base station receives special link setup request, return the link setup response to attendance record terminal, attendance record terminal receives that the response message of work attendance base station finishes work attendance, and sends the sign of portable terminal and fuselage number message to base station controller; Base station controller is received this message, sends message such as entrained work attendance base station indices, mobile terminal identification and fuselage number to Main Processor Unit; After Main Processor Unit was received above-mentioned message, the above-mentioned message of passing on carried longitude and latitude, mobile terminal identification and the fuselage number of work attendance base station for the work attendance platform; The work attendance platform is received message, and longitude and latitude, mobile terminal identification and the fuselage number of preserving the time receive message, base station are in database, so that attendance management person's inquiry and statistics.
Be that example describes attendance checking system of the present invention in detail with PHS (Personal Handyphone System) terminal and system below, as shown in Figure 1, attendance record terminal, be connected with the work attendance base station radio, it is called that attendance record terminal has only standby can hear under the base station, as PHS (Personal Handyphone System) when terminal moves, the signal weaker of standby base station, when standby signal is lower than the standby signal thresholding of terminal, terminal can be carried out search network and is stationed on the strongest base station of signal, when attendance record terminal searches strong basis station is the work attendance base station, sends special Radio Link message to the base station, receives that the response message of Radio Link just finishes work attendance; The main effect of attendance record terminal is: when standby, the sign (CSID) according to standby base station judges whether to initiate the work attendance flow process, initiates work attendance and finishes work attendance;
The work attendance base station, link to each other with base station controller and with the attendance record terminal wireless connections, the work attendance position that is used to be provided with Base Station Identification CSID is the work attendance sign, after receiving the work attendance link setup request of attendance record terminal, return attendance record terminal link setup response message, send message (carrying PSID (sign of PHS mobile phone) and fuselage number) and give base station controller; The present invention is own special sign CSID (sign of base station) for each base station is provided with, being designated with a bit among the CSID (bit, position) of work attendance base station;
Base station controller links to each other with Main Processor Unit with the work attendance base station, is used to receive the work attendance message of work attendance base station, obtains index and the PSID in the message (sign of PHS mobile phone) and the fuselage number of work attendance base station, and described content is sent to Main Processor Unit;
Main Processor Unit, link to each other with the work attendance platform with base station controller, be used to receive the work attendance message of base station controller, obtain the longitude and latitude of work attendance base station and PSID of work attendance message (sign of PHS mobile phone) and fuselage number according to the index of work attendance base station, and described content is sent to the work attendance platform;
The work attendance platform, link to each other with Main Processor Unit, be used to receive the work attendance message of Main Processor Unit, after receiving message current time, work attendance latitude and longitude of base station, PSID (sign of PHS mobile phone) and fuselage number are saved in the database inquiry of attendance management person's data available base management system and statistics work attendance.
Fig. 2 is the Base Station Identification CSID structure chart of work attendance of the present invention base station, describes respectively referring to 2 pairs of each Base Station Identifications of accompanying drawing, and be example wherein with PHS (Personal Handyphone System) terminal, PHS base station has 42 bits, and the 1st bit is that public and private network mark is known, and public network is designated 1; The 2nd bit to the 9 bits are totally 8 bit (position, bit) expression operator code; The 10th bit to the 25 bits totally 16 bits are represented the calling zone sequence number; The 26th bit is represented synchronous mark; Wherein the 27th bit is represented work attendance base station sign, and this is masked as 1 the work attendance base station; The 28th bit to the 40 bits 13bit are altogether represented additional identification (representing base station sequence number in the calling zone at present); The 41st bit and the 42nd bit are represented synchronization levels; Portable terminal, be that PHS (Personal Handyphone System) can enter standby under the different base stations according to the difference judgement of each Base Station Identification, if as PHS (Personal Handyphone System) when terminal moves, the signal weaker of standby base station, when standby signal is lower than the standby signal thresholding of terminal, terminal can be carried out search network and is stationed on the strongest base station of signal, when terminal searching during to strong basis station and to detect the base station of being stationed be the work attendance base station, sign (CSID) according to standby base station, promptly the 27th bit has been represented work attendance base station sign, the work attendance base station be masked as at 1 o'clock, PHS (Personal Handyphone System) attendance record terminal is initiated the work attendance flow process, finishes the flow process of initiating work attendance and finishing work attendance; Because there is the special identifier CSID (sign of base station) of oneself the work attendance base station, can not take the resource of system like this, the user does not need to carry out special operation, carries out work attendance automatically, so solved the problem of the wasting of resources in the existing attendance checking system.
Fig. 3 is the request for building link structural table that attendance record terminal of the present invention sends, described referring to accompanying drawing 3, the vertical of table is bit (position, bit), be Octet (byte) laterally, wherein outside the system type (system type, the 6th, the 5th and the 4th bit of the 3rd byte) except the 3rd byte, other is all the same with registration, call establishment link request.
Revising System Type is defined as follows:
Bit
6?5?4
0?0?0?Public?system(including?private?system?based?on?RCR?STD-28(version?1)
0?0?1?Private?system?based?on?RCR?STD-28(version?2)or?RCR?STD-28(version?3)
010 work attendances location is special-purpose
..
..
..
1?1?1?System?type?8(reserved)
In the present invention, set up link request for work attendance, system type is 010.
Fig. 4 is the total signal flow graph of attendance checking system of the present invention, referring to accompanying drawing 4 it is described in detail, and wherein the PS in the diagram represents attendance record terminal, and CS represents the work attendance base station, and CSC represents base station controller, and MPU represents Main Processor Unit; Its signal flow is as follows:
When 1) attendance record terminal is initiated work attendance, send Link channel request (link request is set up in work attendance) and give the work attendance base station;
2) receive when link request is set up in work attendance the work attendance base station, returns attendance record terminal work attendance response (Linkchannel reject or Link channel assign), sends the message of carrying PSID (sign of PHS mobile phone) and fuselage number to base station controller;
3) attendance record terminal receives that the work attendance response of work attendance base station finishes work attendance, no longer continuous transmission information;
4) base station controller is received the work attendance message of base station, finds the index of base station, and base station indices, PSID (sign of PHS mobile phone) and fuselage number are sent to Main Processor Unit;
5) Main Processor Unit is received work attendance message, finds the longitude and latitude of base station according to the base station indices of obtaining in the message, and latitude and longitude of base station, PSID (sign of PHS mobile phone) and fuselage number are sent to the work attendance platform;
6) the work attendance platform is received work attendance message, according to the time of receiving work attendance message, time, latitude and longitude of base station, PSID (sign of PHS mobile phone) and fuselage number are saved in the database, and attendance management person can be by data base management system inquiry and statistics work attendance situation.
Fig. 5 is the work attendance flow chart of PAS terminal of the present invention, referring to accompanying drawing 5 it is described in detail,
1) attendance record terminal search network selects the strongest base station to enter standby;
2) attendance record terminal judges whether standby base station is the work attendance base station, if not then enter standby;
3) if the work attendance base station, then attendance record terminal sends work attendance to the work attendance base station and sets up chain circuit message and start and resend work attendance link setup message timer;
4) if attendance record terminal is received the work attendance response of work attendance base station, emptying and retransmitting number of times is zero, stops to resend work attendance link setup stop timing device, finishes work attendance;
5) if attendance record terminal is retransmitted work attendance link setup message timer expiry, judge and whether retransmit number of times, empty then that to retransmit number of times be zero, finish work attendance if be not less than threshold value N less than thresholding N (the general value of N value is 6);
6) if retransmit number of times less than thresholding N, retransmit number of times and add one, attendance record terminal sends work attendance to the work attendance base station and sets up chain circuit message and start and resend work attendance link setup message timer, carries out step 4) or 5), 6) processing.
By above-mentioned detailed description of the present invention, can draw because the present invention has adopted by attendance record terminal to come automatically web search to be carried out in the base station and be stationed on the strongest base station of signal, the strong basis station that attendance record terminal searches is the work attendance base station, the work attendance base station sets has the special identifier CSID (sign of base station) of oneself, after attendance record terminal is judged this base station and is the work attendance base station according to different Base Station Identifications, send special Radio Link message simultaneously to the work attendance base station, attendance record terminal receives that the response message of work attendance base station radio link just finishes work attendance, so the work attendance time is short, do not take the resource of system, solved existing problem and shortage of the prior art.
It should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1, a kind of Work attendance method based on mobile communication technology is characterized in that, comprises the steps:
A, attendance record terminal standby in the base station down and carry out web search, described attendance record terminal searches strong basis station and according to the sign of standby base station, judges whether standby base station is the work attendance base station, if the work attendance base station enters step B, otherwise enters holding state;
B, described attendance record terminal send the request of work attendance link setup to described work attendance base station, will feed back the response message of Radio Link after described work attendance base station receives and give described attendance record terminal, after described attendance record terminal receives described response message, finish work attendance.
2, method according to claim 1 is characterized in that, also comprises the steps:
C, described work attendance base station will be according to after the work attendance link setup request that is received, the sign of extracting described attendance record terminal sends to the work attendance platform by base station controller and Main Processor Unit, and described work attendance platform is kept at information such as the sign of the attendance record terminal that receives and time in the database.
3, method according to claim 1 is characterized in that, described step B also comprises the steps:
B1, described attendance record terminal start retransmission timer when sending the request of work attendance link setup, receive described work attendance response when described attendance record terminal, stop retransmission timer, retransmit the number of times zero clearing, finish work attendance.
4, method according to claim 1 is characterized in that, described step B also comprises the steps:
When B2, described attendance record terminal sent the request of work attendance link setup and do not meet with a response to described work attendance base station, described attendance record terminal continued to send the work attendance request; Overtime when described retransmission timer, described attendance record terminal judges that whether the repeating transmission number of times is less than threshold value, if the step of entering
B3, otherwise retransmit the number of times zero clearing, finish work attendance;
B3, repeating transmission number of times are retransmitted number of times and are added one less than described threshold value, and described attendance record terminal sends the request of described work attendance link setup and starts retransmission timer to described work attendance base station, continues work attendance.
5, method according to claim 3 is characterized in that, the span of described threshold value is not more than 6.
6, method according to claim 1 is characterized in that, the specific identifier (bit) of described work attendance base station is 1.
7, method according to claim 1 is characterized in that, described work attendance link setup request system type is 010.
8, method according to claim 2 is characterized in that, the information that described work attendance platform is preserved comprises time, latitude and longitude of base station, mobile terminal identification and fuselage number.
9, a kind of attendance checking system based on mobile communication technology, comprise attendance record terminal, work attendance base station and background processing system, it is characterized in that, described attendance record terminal is used for standby in the base station down and carry out web search, and described attendance record terminal searches strong basis station and according to the sign of standby base station, judge whether to initiate the work attendance flow process, initiate work attendance and finish work attendance;
Described work attendance base station, the work attendance position that is used to be provided with Base Station Identification is the work attendance sign, after the work attendance link setup request of described attendance record terminal is received in described work attendance base station, return attendance record terminal link setup response message, and send work attendance information to described background processing system to described attendance record terminal.
10, system according to claim 8 is characterized in that, described background processing system comprises: base station controller, and Main Processor Unit and work attendance platform, wherein,
Described base station controller, link to each other with described Main Processor Unit with described work attendance base station, be used to receive the work attendance message of described work attendance base station, obtain the index of described work attendance base station and the sign and the fuselage number of attendance record terminal, and described content is sent to described Main Processor Unit;
Described Main Processor Unit, link to each other with described work attendance platform with described base station controller, be used to receive the work attendance message of described base station controller, index according to described work attendance base station obtains the longitude and latitude of work attendance base station and the sign and the fuselage number of attendance record terminal, and described content is sent to described work attendance platform;
Described work attendance platform links to each other with described Main Processor Unit, is used to receive the work attendance message of described Main Processor Unit, the sign of current time, work attendance latitude and longitude of base station, attendance record terminal and fuselage number is saved in database after receiving message.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100654927A CN101237704A (en) | 2008-02-28 | 2008-02-28 | An attendance checking method and system based on mobile communication technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100654927A CN101237704A (en) | 2008-02-28 | 2008-02-28 | An attendance checking method and system based on mobile communication technology |
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| CNA2008100654927A Pending CN101237704A (en) | 2008-02-28 | 2008-02-28 | An attendance checking method and system based on mobile communication technology |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074054B (en) * | 2009-11-24 | 2013-02-20 | 中国移动通信集团福建有限公司 | Checking-in method and system |
| CN103345786A (en) * | 2013-04-16 | 2013-10-09 | 江苏奇异点网络有限公司 | Automatic sign-in method based on WIFI network |
| WO2014075511A1 (en) * | 2012-11-19 | 2014-05-22 | 中兴通讯股份有限公司 | Attendance recording method, device and system |
| CN104410697A (en) * | 2014-12-02 | 2015-03-11 | 广东安居宝数码科技股份有限公司 | Method and system for processing attendance information |
| US9350946B2 (en) | 2012-12-24 | 2016-05-24 | Huawei Technologies Co., Ltd. | Information processing method and apparatus for video communication |
| CN106296853A (en) * | 2016-08-09 | 2017-01-04 | 张北江 | The attendance recording method of bluetooth and system in security protection |
| CN106296846A (en) * | 2016-08-09 | 2017-01-04 | 张北江 | The attendance recording method of the Big Dipper and system in security protection |
| CN106296859A (en) * | 2016-08-09 | 2017-01-04 | 张北江 | The attendance recording method of GPRS and system in security protection |
| CN106327148A (en) * | 2016-08-09 | 2017-01-11 | 张北江 | WIFI attendance record method and system in security and protection |
| CN113129466A (en) * | 2020-01-10 | 2021-07-16 | 阿里巴巴集团控股有限公司 | Sign-in verification method, sign-in verification device and electronic equipment |
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2008
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074054B (en) * | 2009-11-24 | 2013-02-20 | 中国移动通信集团福建有限公司 | Checking-in method and system |
| US9713111B2 (en) | 2012-11-19 | 2017-07-18 | Zte Corporation | Method, device and system for recording attendance |
| WO2014075511A1 (en) * | 2012-11-19 | 2014-05-22 | 中兴通讯股份有限公司 | Attendance recording method, device and system |
| CN103824336A (en) * | 2012-11-19 | 2014-05-28 | 中兴通讯股份有限公司 | Method, device and system for attendance recording |
| US9350946B2 (en) | 2012-12-24 | 2016-05-24 | Huawei Technologies Co., Ltd. | Information processing method and apparatus for video communication |
| CN103345786B (en) * | 2013-04-16 | 2016-06-22 | 江苏奇异点网络有限公司 | A kind of it is automatically signing in method based on WIFI network |
| CN103345786A (en) * | 2013-04-16 | 2013-10-09 | 江苏奇异点网络有限公司 | Automatic sign-in method based on WIFI network |
| CN104410697A (en) * | 2014-12-02 | 2015-03-11 | 广东安居宝数码科技股份有限公司 | Method and system for processing attendance information |
| CN106296853A (en) * | 2016-08-09 | 2017-01-04 | 张北江 | The attendance recording method of bluetooth and system in security protection |
| CN106296846A (en) * | 2016-08-09 | 2017-01-04 | 张北江 | The attendance recording method of the Big Dipper and system in security protection |
| CN106296859A (en) * | 2016-08-09 | 2017-01-04 | 张北江 | The attendance recording method of GPRS and system in security protection |
| CN106327148A (en) * | 2016-08-09 | 2017-01-11 | 张北江 | WIFI attendance record method and system in security and protection |
| CN113129466A (en) * | 2020-01-10 | 2021-07-16 | 阿里巴巴集团控股有限公司 | Sign-in verification method, sign-in verification device and electronic equipment |
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