CN108834124B - 2G Internet of things terminal identification method and system - Google Patents

2G Internet of things terminal identification method and system Download PDF

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CN108834124B
CN108834124B CN201810725846.XA CN201810725846A CN108834124B CN 108834124 B CN108834124 B CN 108834124B CN 201810725846 A CN201810725846 A CN 201810725846A CN 108834124 B CN108834124 B CN 108834124B
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terminal
internet
things
mobile number
mobile
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CN108834124A (en
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王子奇
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities

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  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The invention provides a 2G Internet of things terminal identification method and a system, wherein the method comprises the following steps: counting the mobile number information with attachment behavior in an HLR network element in a preset period; establishing a user communication detail list according to the mobile number information, wherein the user communication detail list comprises mobile numbers attached to the HLR network element of the 2G; collecting attribute information of the mobile number, and calculating number characteristic attributes according to the attribute information; judging whether the terminal of the mobile number is an Internet of things terminal or not according to the number characteristic attribute; and establishing a 2G Internet of things terminal library containing the mobile numbers of all the Internet of things terminals. The 2G Internet of things terminal identification method provided by the invention can quickly and effectively identify the 2G Internet of things terminal, thereby solving the clearing difficulty of the 2G network.

Description

2G Internet of things terminal identification method and system
Technical Field
The invention relates to the technical field of communication, in particular to a 2G Internet of things terminal identification method and system.
Background
The terminal of the Internet of things is a device which is connected with a sensing network layer and a transmission network layer in the Internet of things and realizes data acquisition and data transmission to the network layer. It is responsible for data acquisition, preliminary processing, encryption, transmission and other functions.
In order to focus on the development of 5G, mobile operators are continuously performing the clearing work of 2G networks in recent years. However, during the clearing process: the problem that whether the 2G terminal is the terminal of the Internet of things cannot be identified exists, and therefore a lot of difficulties are caused to clearing and retreating work.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a 2G Internet of things terminal identification method and a system, which can quickly and effectively identify a 2G Internet of things terminal, so that the difficulty in clearing and quitting a 2G network can be solved.
The invention provides a 2G Internet of things terminal identification method for achieving the purpose of the invention, which comprises the following steps:
counting the mobile number information with attachment behavior in an HLR network element in a preset period;
establishing a user communication detail list according to the mobile number information, wherein the user communication detail list comprises mobile numbers attached to the HLR network element of the 2G;
collecting attribute information of the mobile number, and calculating number characteristic attributes according to the attribute information;
judging whether the terminal of the mobile number is an Internet of things terminal or not according to the number characteristic attribute;
and establishing a 2G Internet of things terminal library containing the mobile numbers of all the Internet of things terminals.
Optionally, the step of establishing a user communication detail list according to the mobile number information includes:
dividing the mobile number into: mobile number attached in HLR network element of 2G; and mobile numbers attached to the HLR network elements of 3G or 4G, and respectively forming a 2G-TEMP form and a 3G/4G-TEMP form;
and removing all records of numbers which appear in the 2G-TEMP form and the 3G/4G-TEMP form at the same time from the 2G-TEMP form to form a new 2G-TEMP form.
Optionally, the step of collecting attribute information of the mobile number and calculating the number characteristic attribute according to the attribute information includes:
collecting attachment time, target IP address, data communication time and data length deviation of a mobile number from a BSS system;
and calculating the ratio of the attachment times, the target IP number, the data communication frequency and the data length deviation to be less than 30% according to the attachment time, the target IP address, the data communication time and the data length deviation of the mobile number.
Optionally, the number of times of attachment is equal to the sum of the recorded number of times of attachment;
the target IP number is equal to the sum of the number of the target IP addresses remaining after the repeated target IP addresses are eliminated;
the data communication frequency is equal to the difference value of the adjacent data communication time in the same day;
the data length deviation below 30% satisfies the following formula:
C=S/10*T
wherein C is that the data length deviation is less than 30 percent; t is a preset period; s is that in the preset period T, the data length of 20 pieces is randomly selected every day and is divided into 10 groups, and the data length percentage of each group is the difference value between the maximum value and the minimum value of the data length in the group divided by the minimum value.
Optionally, the step of determining whether the terminal of the mobile number is the terminal of the internet of things according to the number characteristic attribute includes:
assuming that P (A | X) is the probability of the terminal of the Internet of things;
if P (A | X) > 0.5, judging that the terminal of the mobile number is the terminal of the Internet of things;
and if P (A | X) < =0.5, judging that the terminal of the mobile number is a non-Internet-of-things terminal.
Optionally, the step of establishing a 2G internet of things terminal library including mobile numbers of all the internet of things terminals includes:
the terminal type is judged according to the following rules:
if the SIM card corresponding to the mobile number is 3G or 4G, identifying that the terminal to which the mobile number belongs is a 2G Internet of things terminal;
if the SIM card corresponding to the mobile number is 2G, judging the type of the terminal by judging whether the attachment of the terminal of the Internet of things is successful or failed;
acquiring a corresponding terminal identifier IMEI from the HLR network element of the 2G according to the mobile number of the terminal of the Internet of things, and establishing a 2G Internet of things terminal library;
and sending the mobile numbers of all the 2G terminals identified in the step of judging whether the mobile number terminal is the Internet of things terminal according to the characteristic attribute to the 2G Internet of things terminal library.
Optionally, if the SIM card corresponding to the mobile number is 2G, the step of determining the type of the terminal by determining whether the terminal of the internet of things is successfully attached or fails includes:
if the SIM card corresponding to the mobile number is 2G, the following method is carried out:
acquiring a code of an MSC (mobile switching center) for controlling the terminal of the Internet of things through the HLR (home location register) of the 2G;
sending an attachment transfer request to the MSC, and requesting the MSC to forward the attachment request of the terminal of the Internet of things to the MSC;
completing the detachment operation to the terminal of the Internet of things through the HLR of the 2G;
receiving an attachment request initiated by an Internet of things terminal, and judging whether the terminal has a 3G/4G service;
if yes, confirming that the terminal is a 3G/4G terminal, and successfully attaching; if not, the terminal is confirmed to be a 2G terminal, and the attachment fails.
As another technical solution, the present invention also provides a 2G internet of things terminal identification system, which includes:
the HLR statistic unit is used for counting the mobile number information with the attachment behavior in the HLR network element in a preset period;
a communication counting unit, configured to establish a user communication detail list according to the mobile number information, where the user communication detail list includes a mobile number attached to a 2G HLR network element;
the acquisition and calculation unit is used for acquiring attribute information of the mobile number and calculating the number characteristic attribute according to the attribute information;
the identification unit is used for judging whether the terminal of the mobile number is an Internet of things terminal or not according to the number characteristic attribute;
and the 2G Internet of things terminal library comprises all mobile numbers of the Internet of things terminals.
Optionally, the method further includes:
a terminal type judging unit, configured to judge the terminal type according to the following rules:
if the SIM card corresponding to the mobile number is 3G or 4G, identifying that the terminal to which the mobile number belongs is a 2G Internet of things terminal;
if the SIM card corresponding to the mobile number is 2G, judging the type of the terminal by judging whether the attachment of the terminal of the Internet of things is successful or failed;
acquiring a corresponding terminal identifier IMEI from the HLR network element of the 2G according to the mobile number of the terminal of the Internet of things, and establishing a 2G Internet of things terminal library;
and sending the mobile numbers of all the 2G terminals identified in the step of judging whether the mobile number terminal is the Internet of things terminal according to the characteristic attribute to the 2G Internet of things terminal library.
Optionally, the 2G internet of things terminal library includes a 2G internet of things terminal library table for providing an external query service.
The invention has the following beneficial effects:
in the technical scheme of the 2G Internet of things terminal identification method and system provided by the invention, the 2G Internet of things terminal is subjected to characteristic analysis, namely, the mobile number information with attachment behaviors in an HLR network element in a preset period is counted; establishing a user communication detailed list according to the mobile number information; collecting attribute information of the mobile number, and calculating number characteristic attributes according to the attribute information; judging whether the terminal of the mobile number is an Internet of things terminal or not according to the number characteristic attribute; and establishing a 2G Internet of things terminal library containing the mobile numbers of all the Internet of things terminals. Therefore, the 2G Internet of things terminal can be identified quickly and effectively, and the clearing difficulty of the 2G network can be solved.
Drawings
Fig. 1 is a flow chart of a 2G internet of things terminal identification method provided by the invention;
fig. 2 is a schematic block diagram of a 2G internet of things terminal identification system provided by the invention.
Detailed Description
In order to enable those skilled in the art to better understand the technical solution of the present invention, the following describes in detail a 2G internet of things terminal identification method and system provided by the present invention with reference to the accompanying drawings.
Referring to fig. 1, the method for identifying a 2G internet of things terminal provided by the invention includes:
step S1, counting the mobile number information with attachment behavior in the HLR network element within a predetermined period.
The predetermined period can be selected according to actual conditions, such as 3-6 months.
The HLR (Home Location Register) is a database responsible for mobile subscriber management, and specifically includes a 2G/3G/4G HLR network element.
The mobile number information includes a subscriber number, registration time, HLR number, and SIM card type (2G/3G/4G), etc.
Step S2, establishing a subscriber communication detail list according to the mobile number information, where the subscriber communication detail list includes the mobile number attached in the HLR network element of 2G.
Further, the step S2 includes:
step S21, according to the HLR number in the mobile number information, dividing the mobile number into: mobile number attached in HLR network element of 2G; and mobile numbers attached to the HLR network elements of 3G or 4G, and respectively forming a 2G-TEMP form and a 3G/4G-TEMP form;
step S22, all records of numbers appearing in the 2G-TEMP form and the 3G/4G-TEMP form at the same time are removed from the 2G-TEMP form, and a new 2G-TEMP form is formed.
Step S3, collecting attribute information of the mobile number, and calculating a number feature attribute according to the attribute information.
Further, the step S3 includes:
step S31, four items of attribute information of the mobile number are collected from the BSS system, that is: attachment time, target IP address, data communication time, and data length bias;
step S32, calculating four number feature attributes according to the four items of attribute information of the mobile number, that is: the number of times of attachment, the number of target IPs, the data communication frequency, and the data length deviation are less than 30%.
In step S32, the specific calculation manners of the four number feature attributes are:
the number of attachments is equal to the sum of the recorded number of attachments times.
The number of target IP addresses is equal to the sum of the number of remaining target IP addresses after the repeated target IP addresses are eliminated;
the data communication frequency is equal to the difference value of adjacent data communication time in the same day;
the data length deviation below 30% satisfies the following formula:
C=S/10*T
wherein C is the data length deviation of less than 30 percent; t is a preset period; s is the length of 20 pieces of data randomly taken every day in a preset period T and divided into 10 groups, and the percentage of the length of the data in each group is the difference value between the maximum value and the minimum value of the length of the data in the group divided by the minimum value.
And step S4, judging whether the terminal of the mobile number is the terminal of the Internet of things or not according to the number characteristic attribute.
Further, the step S4 includes:
assuming that P (A | X) is the probability of the terminal of the Internet of things;
if P (A | X) > 0.5, judging that the terminal of the mobile number is the terminal of the Internet of things;
and if P (A | X) < =0.5, judging that the terminal of the mobile number is a non-Internet-of-things terminal.
The probability P (a | X) of the internet of things terminal may be obtained by performing sample training, and specifically includes:
step S41, calculating the probability P (A | X) of the terminal of the Internet of things under the condition of the characteristic attribute of each number according to the sample data;
step S42, collecting four number characteristic attributes of the new mobile number;
step S43, calculating the probability of the terminal of the Internet of things under the condition of four-item number characteristic attributes according to the following formula and a probability table of sample training;
and step S44, judging whether the terminal of the mobile number is the terminal of the Internet of things or not according to the probability of the terminal of the Internet of things.
Table 1 is a probability table for sample training
Attachment times (90 days) 0 time 1 time of 2 times (one time) 3 times of
Probability of attachment times 95% 70% 50% 30%
Number of destination IP addresses Less than 10 10-20 20-50 More than 50
Target IP address probability 95% 85% 55% 45%
Data communication frequency (within 30 days, 0-6 hours less than 30 minutes) 0.9-1 0.7-0.9 0.5-0.7 0.5 or less
Data communication frequency probability 95% 90% 85% 70%
Data length deviation less than 30% in percentage Less than 10% 10%-30% 30%-50% Over 50 percent
Data length deviation below 30% percentage probability 95% 85% 70% 65%
As can be seen from table 1, four characteristic attribute values of the new number are collected: the number of times of attachment of the terminal within 90 days; the number of destination IP addresses; data communication frequency (0-6 hours less than 30 minutes for 30 days); the data length deviation is less than 30% by weight. Then, the probability of the terminal of the internet of things under the four-item number feature attribute condition is calculated according to the following formula P (a | X) = P (X1| a) P (X2| a) P (X3| a) P (X4| a) and the probability table 1 of the sample training. And judging whether the terminal is the Internet of things terminal according to the probability, and forming an Internet of things terminal table. The terminal table of the Internet of things comprises a user number and a SIM card type (2G/3G/4G).
And step S5, establishing a 2G Internet of things terminal library containing the mobile numbers of all Internet of things terminals.
Further, the step S5 includes:
step S51, determining the terminal type according to the following rules:
if the SIM card corresponding to the mobile number is 3G or 4G, identifying that the terminal to which the mobile number belongs is a 2G Internet of things terminal;
if the SIM card corresponding to the mobile number is 2G, judging the type of the terminal by judging whether the attachment of the terminal of the Internet of things is successful or failed.
Specifically, the following method may be performed to determine the terminal type:
and step S511, acquiring the code of the MSC for controlling the terminal of the Internet of things through the HLR of the 2G.
The MSC is a network device providing an information exchange function for the communication device.
Step S512, an attachment transfer request is sent to the MSC, and the MSC is required to forward the attachment request of the terminal of the Internet of things to the MSC.
The attach transfer request includes the subscriber number, signaling type (attach/detach), and HLR/AUC address, among others.
Step S513, the detachment operation is completed to the terminal of the Internet of things through the HLR of the 2G;
step S514, receiving an attachment request initiated by the terminal of the Internet of things, and judging whether the terminal has 3G/4G service;
if yes, confirming that the terminal is a 3G/4G terminal, and successfully attaching; if not, the terminal is confirmed to be a 2G terminal, and the attachment fails.
Step S52, acquiring the corresponding terminal identification IMEI from the HLR network element of 2G according to the mobile number of the terminal of the Internet of things, and establishing a 2G terminal library of the Internet of things. The 2G Internet of things terminal library comprises a user number, a terminal number and the like.
And step S53, sending the mobile numbers of all the 2G terminals identified in the step S4 to a 2G Internet of things terminal library.
In summary, in the 2G internet of things terminal identification method provided by the present invention, the 2G internet of things terminal is subjected to feature analysis, that is, mobile number information with an attachment behavior in an HLR network element within a predetermined period is counted; establishing a user communication detailed list according to the mobile number information; collecting attribute information of the mobile number, and calculating number characteristic attributes according to the attribute information; judging whether the terminal of the mobile number is an Internet of things terminal or not according to the number characteristic attribute; and establishing a 2G Internet of things terminal library containing the mobile numbers of all the Internet of things terminals. Therefore, the 2G Internet of things terminal can be identified quickly and effectively, and the clearing difficulty of the 2G network can be solved.
As another technical solution, as shown in fig. 2, the present invention further provides a 2G internet of things terminal identification system 1, which includes an HLR counting unit 11, a communication counting unit 12, a collecting and calculating unit 13, an identifying unit 14, and a 2G internet of things terminal library 15, where the HLR counting unit 11 is configured to count mobile number information of an attachment behavior in an HLR network element in a predetermined period in the 2G/3G/4G HLR network element.
The communication counting unit 12 is configured to establish a user communication detail list according to the mobile number information, where the user communication detail list includes a mobile number attached to the HLR network element of the 2G network;
the collecting and calculating unit 13 is configured to collect attribute information of the mobile number from the BSS system, and calculate a number feature attribute according to the attribute information.
The identification unit 14 is configured to determine whether the terminal of the mobile number is an internet of things terminal according to the number characteristic attribute;
the 2G internet of things terminal library 15 contains mobile numbers of all internet of things terminals.
Optionally, the 2G internet of things terminal identification system further includes: a terminal type judging unit, configured to judge the terminal type according to the following rules:
if the SIM card corresponding to the mobile number is 3G or 4G, identifying that the terminal to which the mobile number belongs is a 2G Internet of things terminal;
if the SIM card corresponding to the mobile number is 2G, judging the type of the terminal by judging whether the attachment of the terminal of the Internet of things is successful or failed;
acquiring a corresponding terminal identifier IMEI from an HLR network element of 2G according to the mobile number of the terminal of the Internet of things, and establishing a 2G Internet of things terminal library;
and sending the mobile numbers of all the 2G terminals identified in the step of judging whether the mobile number terminal is the Internet of things terminal according to the characteristic attribute to a 2G Internet of things terminal library.
Optionally, the 2G internet of things terminal library 15 includes a 2G internet of things terminal library table for providing an external query service.
In summary, the 2G internet of things terminal identification system provided by the invention performs feature analysis on the 2G internet of things terminal, that is, counts the mobile number information with attachment behavior in the HLR network element in a predetermined period; establishing a user communication detailed list according to the mobile number information; collecting attribute information of the mobile number, and calculating number characteristic attributes according to the attribute information; judging whether the terminal of the mobile number is an Internet of things terminal or not according to the number characteristic attribute; and establishing a 2G Internet of things terminal library containing the mobile numbers of all the Internet of things terminals. Therefore, the 2G Internet of things terminal can be identified quickly and effectively, and the clearing difficulty of the 2G network can be solved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (8)

1. A2G Internet of things terminal identification method is characterized by comprising the following steps:
counting the mobile number information with attachment behavior in an HLR network element in a preset period;
establishing a user communication detail list according to the mobile number information, wherein the user communication detail list comprises mobile numbers attached to the HLR network element of the 2G;
collecting attribute information of the mobile number, and calculating number characteristic attributes according to the attribute information;
judging whether the terminal of the mobile number is an Internet of things terminal or not according to the number characteristic attribute;
establishing a 2G Internet of things terminal library containing mobile numbers of all the Internet of things terminals;
the step of establishing a 2G Internet of things terminal library containing all mobile numbers of the Internet of things terminals comprises the following steps:
the terminal type is judged according to the following rules:
if the SIM card corresponding to the mobile number is 3G or 4G, identifying that the terminal to which the mobile number belongs is a 2G Internet of things terminal;
if the SIM card corresponding to the mobile number is 2G, judging the type of the terminal by judging whether the attachment of the terminal of the Internet of things is successful or failed;
acquiring a corresponding terminal identifier IMEI from the HLR network element of the 2G according to the mobile number of the terminal of the 2G Internet of things, and establishing a terminal library of the 2G Internet of things;
and sending the mobile numbers of all the 2G terminals identified in the step of judging whether the mobile number terminal is the Internet of things terminal according to the characteristic attribute to the 2G Internet of things terminal library.
2. The 2G Internet of things terminal identification method according to claim 1, wherein the step of establishing the user communication detail list according to the mobile number information comprises the steps of:
dividing the mobile number into: mobile number attached in HLR network element of 2G; and mobile numbers attached to the HLR network elements of 3G or 4G, and respectively forming a 2G-TEMP form and a 3G/4G-TEMP form;
and removing all records of numbers which appear in the 2G-TEMP form and the 3G/4G-TEMP form at the same time from the 2G-TEMP form to form a new 2G-TEMP form.
3. The 2G Internet of things terminal identification method according to claim 1, wherein the step of collecting attribute information of the mobile number and calculating the number characteristic attribute according to the attribute information comprises the steps of:
collecting attachment time, target IP address, data communication time and data length deviation of a mobile number from a BSS system;
and calculating the ratio of the attachment times, the target IP number, the data communication frequency and the data length deviation to be less than 30% according to the attachment time, the target IP address, the data communication time and the data length deviation of the mobile number.
4. The 2G Internet of things terminal identification method according to claim 3, wherein the number of times of attachment is equal to the sum of the recorded number of times of attachment;
the target IP number is equal to the sum of the number of the target IP addresses remaining after the repeated target IP addresses are eliminated;
the data communication frequency is equal to the difference value of the adjacent data communication time in the same day;
the data length deviation below 30% satisfies the following formula:
C=S/10*T
wherein C is that the data length deviation is less than 30 percent; t is a preset period; s is that in the preset period T, the data length of 20 pieces is randomly selected every day and is divided into 10 groups, and the data length percentage of each group is the difference value between the maximum value and the minimum value of the data length in the group divided by the minimum value.
5. The 2G Internet of things terminal identification method according to claim 1, wherein the step of judging whether the mobile number terminal is an Internet of things terminal according to the number characteristic attribute comprises the steps of:
assuming that P (A | X) is the probability of the terminal of the Internet of things;
if P (A | X) > 0.5, judging that the terminal of the mobile number is the terminal of the Internet of things;
and if P (A | X) < =0.5, judging that the terminal of the mobile number is a non-Internet-of-things terminal.
6. The 2G Internet of things terminal identification method according to claim 1, wherein if the SIM card corresponding to the mobile number is 2G, the step of judging the type of the terminal by judging whether the attachment of the Internet of things terminal is successful or failed comprises the following steps:
if the SIM card corresponding to the mobile number is 2G, the following method is carried out:
acquiring a code of an MSC (mobile switching center) for controlling the terminal of the Internet of things through the HLR (home location register) of the 2G;
sending an attachment transfer request to the MSC, and requesting the MSC to forward the attachment request of the terminal of the Internet of things to the MSC;
completing the detachment operation to the terminal of the Internet of things through the HLR of the 2G;
receiving an attachment request initiated by an Internet of things terminal, and judging whether the terminal has a 3G/4G service;
if yes, confirming that the terminal is a 3G/4G terminal, and successfully attaching; if not, the terminal is confirmed to be a 2G terminal, and the attachment fails.
7. The utility model provides a 2G thing networking terminal identification system which characterized in that includes:
the HLR statistic unit is used for counting the mobile number information with the attachment behavior in the HLR network element in a preset period;
a communication counting unit, configured to establish a user communication detail list according to the mobile number information, where the user communication detail list includes a mobile number attached to a 2G HLR network element;
the acquisition and calculation unit is used for acquiring attribute information of the mobile number and calculating the number characteristic attribute according to the attribute information;
the identification unit is used for judging whether the terminal of the mobile number is an Internet of things terminal or not according to the number characteristic attribute;
the 2G Internet of things terminal library comprises mobile numbers of all the Internet of things terminals;
a terminal type judging unit, configured to judge the terminal type according to the following rules:
if the SIM card corresponding to the mobile number is 3G or 4G, identifying that the terminal to which the mobile number belongs is a 2G Internet of things terminal;
if the SIM card corresponding to the mobile number is 2G, judging the type of the terminal by judging whether the attachment of the terminal of the Internet of things is successful or failed;
acquiring a corresponding terminal identifier IMEI from the HLR network element of the 2G according to the mobile number of the terminal of the 2G Internet of things, and establishing a terminal library of the 2G Internet of things;
and sending the mobile numbers of all the 2G terminals identified in the step of judging whether the mobile number terminal is the Internet of things terminal according to the characteristic attribute to the 2G Internet of things terminal library.
8. The 2G Internet of things terminal identification system according to claim 7, wherein the 2G Internet of things terminal library comprises a 2G Internet of things terminal library table providing query service for the outside.
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