CN112911021A - Method, device and equipment for actively connecting terminal - Google Patents
Method, device and equipment for actively connecting terminal Download PDFInfo
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- CN112911021A CN112911021A CN202110310298.6A CN202110310298A CN112911021A CN 112911021 A CN112911021 A CN 112911021A CN 202110310298 A CN202110310298 A CN 202110310298A CN 112911021 A CN112911021 A CN 112911021A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004590 computer program Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000012795 verification Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 abstract description 7
- 230000006870 function Effects 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- 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
- H04L69/22—Parsing or analysis of headers
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Abstract
The invention provides a method, a device and equipment for actively connecting a terminal, which comprise the following steps: receiving heartbeat packets sent by a terminal every other preset time; analyzing the heartbeat packet to obtain an IP port of the terminal, and storing the IP port; and sending a connection command to the IP port so that the terminal initiates TCP connection to the server. The problem that in the prior art, long TCP connection is needed between a server and a terminal which need to transmit services at variable time, and large data communication pressure is caused for the server is solved.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, an apparatus, and a device for actively connecting a terminal.
Background
In the prior art, service data is transmitted by using TCP, which requires connecting TCP first and then performing key interaction, and service data transmission is performed after the key is successfully verified, and TCP connection is disconnected after the key interaction fails, sometimes a server is required to actively send data to a terminal. A TCP server normally cannot be directly connected with a TCP client;
the existing processing mode is to carry out long TCP connection through a server and a terminal, and is the situation that the server is dead due to the fact that the server performance is greatly influenced due to the large number of devices.
In view of this, the present application is presented.
Disclosure of Invention
The invention discloses a method for actively connecting a terminal, which aims to at least partially solve the defects of the prior art.
A method for actively connecting a terminal according to a first embodiment of the present invention includes:
receiving heartbeat packets sent by a terminal every other preset time;
analyzing the heartbeat packet to obtain an IP port of the terminal, and storing the IP port;
and sending a connection command to the IP port so that the terminal initiates TCP connection to the server.
Preferably, the heartbeat packet and the connection command are transmitted by UDP protocol transmission.
Preferably, after the sending a connection command to the terminal to cause the terminal to initiate a TCP connection to a server, the method further includes:
receiving secret key information sent by the terminal, and decrypting the secret key information to obtain decryption information;
and transmitting the service data to the terminal after the decryption information passes the verification.
Preferably, the method further comprises the following steps:
and when the decryption information fails to be verified, the TCP connection with the terminal is disconnected.
Preferably, the method further comprises disconnecting the TCP connection between the server and the terminal after the transmitting the traffic data to the terminal.
A first embodiment of the present invention provides an apparatus for actively connecting a terminal, including:
a receiving unit, configured to receive a heartbeat packet sent by a terminal every predetermined time;
the analysis unit is used for analyzing the heartbeat packet to obtain an IP port of the terminal and storing the IP port;
and the sending unit is used for sending a connection command to the IP port so that the terminal initiates TCP connection to the server.
Preferably, the heartbeat packet and the connection command are transmitted by UDP protocol transmission.
Preferably, after the sending the connection command to the terminal to enable the terminal to initiate a TCP connection to the server, the method further includes:
receiving secret key information sent by the terminal, and decrypting the secret key information to obtain decryption information;
and transmitting the service data to the terminal after the decryption information passes the verification.
Preferably, the method further comprises the following steps:
and when the decryption information fails to be verified, the TCP connection with the terminal is disconnected.
A third embodiment of the present invention provides an active terminal connection device, which is characterized by comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the method for actively connecting a terminal as described in any one of the above.
A fourth embodiment of the present invention provides a storage medium, which is characterized by storing a computer program, where the computer program is executable by a processor of a device in which the computer-readable storage medium is located, so as to implement a method for actively connecting a terminal as described in any one of the above.
Based on the method, the device, the equipment and the storage medium for actively connecting the terminal, provided by the invention, the heartbeat packet sent by the terminal is received and analyzed, the IP port of the terminal is obtained, and the connection command is sent to the IP port to inform the terminal that the server needs to carry out service data transmission with the terminal and needs to initiate TCP connection with the server, so that the problem that in the prior art, long TCP connection is carried out between the server and the terminal which need to transmit services at irregular time, and the server has larger data communication pressure is solved.
Drawings
Fig. 1 is a schematic diagram of a connection method for actively connecting a terminal according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a connection device of an active connection terminal according to a first embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
In the embodiments, the references to "first \ second" are merely to distinguish similar objects and do not represent a specific ordering for the objects, and it is to be understood that "first \ second" may be interchanged with a specific order or sequence, where permitted. It should be understood that "first \ second" distinct objects may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced in sequences other than those illustrated or described herein.
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
Referring to fig. 1, the present invention discloses a method for actively connecting a terminal according to a first embodiment of the present invention, which can be executed by a device actively connecting a terminal (hereinafter referred to as a connecting device), and in particular, executed by one or more processors in the connecting device, so as to implement the following steps:
s101, receiving heartbeat packets sent by a terminal every other preset time;
in this embodiment, the connection device may be a server located at a cloud end, and the server at the cloud end may establish a communication connection with a user terminal (such as a smart phone, a smart printer, or other smart devices) to implement data interaction.
Particularly, in this embodiment, data for enabling the terminal to actively initiate a TCP connection to the server may be stored in the server, so as to implement service data transmission from the server to the terminal.
It should be noted that, in the prior art, service data may be occasionally transmitted from a terminal to a server or from the server to the terminal, when the service data needs to be transmitted from the terminal to the server, the terminal may be directly connected to the server, and when the service data needs to be transmitted from the server to the terminal, the server generally cannot establish a TCP connection with the terminal. Conventionally, a TCP long connection is simply made between a terminal and a server, which occupies system resources and increases server pressure.
In this embodiment, a heartbeat packet may be sent to the server every 30 seconds (not limited thereto) at the terminal, and it should be noted that, at this time, no TCP connection is made between the terminal and the server, and it may transmit the heartbeat packet through a UDP protocol, it should be understood that, here, the terminal may be not only one but also many, and the UDP protocol may be understood as that, as long as the terminal knows the IP port of the server, the heartbeat packet may be sent to the server.
S102, analyzing the heartbeat packet to obtain an IP port of the terminal, and storing the IP port;
in this embodiment, after receiving the heartbeat packet, the server may parse the heartbeat packet to obtain an IP port of the terminal that sent the heartbeat packet, and similarly, it should be understood that, based on the UDP protocol, the server may send the heartbeat packet to the terminal in the case that the server knows the IP port of the terminal.
S103, sending a connection command to the IP port so that the terminal initiates TCP connection to the server.
In this embodiment, when the server needs to send service data like a certain terminal, the terminal is supposed to send the connection command, where the connection command may include notification information, for example, the server needs to transmit data and needs to establish a TCP connection, and the terminal may actively initiate a TCP connection to the server after receiving the notification information.
In this embodiment, the heartbeat packet and the connection command may be transmitted through UDP protocol transmission.
It should be noted that, in other embodiments, other transmission protocols may also be used for the heartbeat packet and the connect command, which is not specifically limited herein, but these schemes are within the protection scope of the present invention.
In this embodiment, after the sending the connection command to the terminal to enable the terminal to initiate a TCP connection to the server, the method further includes:
receiving secret key information sent by the terminal, and decrypting the secret key information to obtain decryption information;
and transmitting the service data to the terminal after the decryption information passes the verification.
It should be noted that, after the terminal and the server establish the TCP connection, the terminal may send a key message for verification, and after the verification is passed, the server may start to transmit the service data.
In this embodiment, the method further includes:
and when the decryption information fails to be verified, the TCP connection with the terminal is disconnected.
It should be noted that when the decryption information verification fails, the connection establishment is incorrect, and the TCP connection between the terminal and the server needs to be disconnected, so as to improve the security of data.
In this embodiment, after the transmitting the service data to the terminal, the TCP connection between the server and the terminal is disconnected.
It should be understood that after the service data transmission is finished, the terminal or the server can automatically disconnect, so that the terminal is prevented from always keeping TCP connection with the server, the pressure of the server is effectively reduced, and network resources are saved.
It should be noted that, in other embodiments, a timer may be set after the connection is established, for example, the timer is automatically disconnected ten minutes after the connection, which is not specifically limited herein, but these schemes are all within the protection scope of the present invention.
Referring to fig. 2, a device for actively connecting a terminal according to a second embodiment of the present invention includes:
a receiving unit 201, configured to receive heartbeat packets sent by a terminal every predetermined time;
an analyzing unit 202, configured to analyze the heartbeat packet to obtain an IP port associated with the terminal, and store the IP port;
a sending unit 203, configured to send a connection command to the IP port, so that the terminal initiates a TCP connection to the server.
Preferably, the heartbeat packet and the connection command are transmitted by UDP protocol transmission.
Preferably, after the sending the connection command to the terminal to enable the terminal to initiate a TCP connection to the server, the method further includes:
receiving secret key information sent by the terminal, and decrypting the secret key information to obtain decryption information;
and transmitting the service data to the terminal after the decryption information passes the verification.
Preferably, the method further comprises the following steps:
and when the decryption information fails to be verified, the TCP connection with the terminal is disconnected.
A third embodiment of the present invention provides an active terminal connection device, which is characterized by comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the method for actively connecting a terminal as described in any one of the above.
A fourth embodiment of the present invention provides a storage medium, which is characterized by storing a computer program, where the computer program is executable by a processor of a device in which the computer-readable storage medium is located, so as to implement a method for actively connecting a terminal as described in any one of the above.
Based on the method, the device, the equipment and the storage medium for actively connecting the terminal, provided by the invention, the heartbeat packet sent by the terminal is received and analyzed, the IP port of the terminal is obtained, and the connection command is sent to the IP port to inform the terminal that the server needs to carry out service data transmission with the terminal and needs to initiate TCP connection with the server, so that the problem that in the prior art, long TCP connection is carried out between the server and the terminal which need to transmit service at variable time, and larger data communication pressure is caused to the server is solved.
Illustratively, the computer programs described in the third and fourth embodiments of the present invention may be partitioned into one or more modules, which are stored in the memory and executed by the processor to implement the present invention. The one or more modules may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program in the connection device implementing an active connection terminal. For example, the device described in the second embodiment of the present invention.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor is the control center of the connection method based on an active connection terminal, and various interfaces and lines are used to connect the whole parts of the connection method for implementing an active connection terminal.
The memory may be used to store the computer programs and/or modules, and the processor may implement various functions of a connection method of an active connection terminal by operating or executing the computer programs and/or modules stored in the memory and calling data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, a text conversion function, etc.), and the like; the storage data area may store data (such as audio data, text message data, etc.) created according to the use of the cellular phone, etc. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Wherein the implemented module, if implemented in the form of a software functional unit and sold or used as a stand-alone product, can be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for actively connecting a terminal, comprising:
receiving heartbeat packets sent by a terminal every other preset time;
analyzing the heartbeat packet to obtain an IP port of the terminal, and storing the IP port;
and sending a connection command to the IP port so that the terminal initiates TCP connection to the server.
2. The method of claim 1, wherein the heartbeat packet and the connection command are transmitted via UDP protocol transmission.
3. The method of claim 1, wherein after the sending a connection command to the terminal to cause the terminal to initiate a TCP connection to a server, the method further comprises:
receiving secret key information sent by the terminal, and decrypting the secret key information to obtain decryption information;
and transmitting the service data to the terminal after the decryption information passes the verification.
4. The method of claim 3, further comprising:
and when the decryption information fails to be verified, the TCP connection with the terminal is disconnected.
5. The method of claim 3, further comprising disconnecting the TCP connection between the server and the terminal after the transmitting the traffic data to the terminal.
6. An apparatus for actively connecting a terminal, comprising:
a receiving unit, configured to receive a heartbeat packet sent by a terminal every predetermined time;
the analysis unit is used for analyzing the heartbeat packet to obtain an I P port of the terminal and storing the IP port;
and the sending unit is used for sending a connection command to the IP port so that the terminal initiates TCP connection to the server.
7. The device of claim 6, wherein the heartbeat packet and the connection command are transmitted via UDP protocol transmission.
8. The apparatus of claim 6, wherein after sending the connection command to the terminal to make the terminal initiate a TCP connection to the server, the apparatus further comprises:
receiving secret key information sent by the terminal, and decrypting the secret key information to obtain decryption information;
and transmitting the service data to the terminal after the decryption information passes the verification.
9. The apparatus of claim 8, further comprising:
and when the decryption information fails to be verified, the TCP connection with the terminal is disconnected.
10. An actively terminal-connecting device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement a method of actively connecting a terminal as claimed in any one of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110310298.6A CN112911021A (en) | 2021-03-23 | 2021-03-23 | Method, device and equipment for actively connecting terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110310298.6A CN112911021A (en) | 2021-03-23 | 2021-03-23 | Method, device and equipment for actively connecting terminal |
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| CN112911021A true CN112911021A (en) | 2021-06-04 |
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