CN111741040B - Connection establishing method, address obtaining method, device, equipment and storage medium - Google Patents
Connection establishing method, address obtaining method, device, equipment and storage medium Download PDFInfo
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- CN111741040B CN111741040B CN201910562989.8A CN201910562989A CN111741040B CN 111741040 B CN111741040 B CN 111741040B CN 201910562989 A CN201910562989 A CN 201910562989A CN 111741040 B CN111741040 B CN 111741040B
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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
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
- H04L63/0846—Network architectures or network communication protocols for network security for authentication of entities using passwords using time-dependent-passwords, e.g. periodically changing passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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Abstract
The invention discloses a connection establishing method, an address acquiring device, equipment and a storage medium, and belongs to the technical field of computers. The method comprises the following steps: based on a first address, sending an address acquisition request to a first server corresponding to the first address; receiving a second address sent by the first server; and sending a connection request to a second server corresponding to the second address based on the second address, and establishing communication connection with the second server. According to the method and the device, the connection request is not directly sent to the server based on the preset address, so that an operator cannot acquire the second address of the second server in advance, cannot intercept information or tamper the information when communication connection is carried out between the vehicle-mounted equipment and the second server, the safety and the reliability of the established connection are effectively improved, and the accuracy of communication data is improved.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a connection establishing method, an address obtaining method, an apparatus, a device, and a storage medium.
Background
With the development of the car networking technology, the vehicle-mounted equipment can establish connection with the server to acquire network services.
At present, a connection establishment method generally presets an Internet Protocol (IP) address in a vehicle-mounted device, and when the vehicle-mounted device is started, the vehicle-mounted device directly accesses a preset server based on the preset IP address to establish a communication connection with the preset server.
In the method, the vehicle-mounted equipment accesses the preset IP address, and an operator can acquire the preset IP address in advance, so that communication data can be easily intercepted during the communication between the vehicle-mounted equipment and the server, advertisements can also be inserted, and the safety is poor and the accuracy of the communication data is low.
Disclosure of Invention
Embodiments of the present invention provide a connection establishing method, an address obtaining method, an apparatus, a device, and a storage medium, which can solve the problems of poor security and low accuracy in the related art. The technical scheme is as follows:
in one aspect, a connection establishing method is provided, and is applied to a vehicle-mounted device, and the method includes:
based on a first address, sending an address acquisition request to a first server corresponding to the first address;
receiving a second address sent by the first server, wherein the second address is obtained by the first server based on the first address;
and sending a connection request to a second server corresponding to the second address based on the second address, and establishing communication connection with the second server.
In a possible implementation manner, the address acquisition request carries a location of the vehicle-mounted device or identification information of the vehicle-mounted device; the second address is obtained by the first server based on the first address and at least one of the position of the vehicle-mounted device, the identification information of the vehicle-mounted device, or the load information of the plurality of servers.
In one aspect, an address obtaining method is provided, which is applied to a first server, and includes:
receiving an address acquisition request sent by vehicle-mounted equipment;
acquiring a second server based on at least one of the position of the vehicle-mounted equipment, the identification information of the vehicle-mounted equipment or the load information of a plurality of servers;
and sending the second address of the second server to the vehicle-mounted equipment.
In one aspect, an apparatus for establishing a connection is provided, the apparatus including:
the sending module is used for sending an address acquisition request to a first server corresponding to a first address based on the first address;
a receiving module, configured to receive a second address sent by the first server, where the second address is obtained by the first server based on the first address;
and the connection module is used for sending a connection request to a second server corresponding to the second address based on the second address and establishing communication connection with the second server.
In a possible implementation manner, the address obtaining request carries a location of the vehicle-mounted device or identification information of the vehicle-mounted device; the second address is obtained by the first server based on the first address and at least one of the position of the vehicle-mounted device, the identification information of the vehicle-mounted device, or the load information of the plurality of servers.
In a possible implementation manner, the sending module is further configured to process data to be sent based on a target communication protocol to obtain a first data packet, and send the first data packet to the second server that establishes the communication connection.
In a possible implementation manner, the receiving module is further configured to receive a second data packet processed by the second server based on a target communication protocol.
In a possible implementation manner, the sending module is further configured to compress the data to be sent based on a target compression manner to obtain a first data packet.
In a possible implementation manner, the sending module is further configured to send an information obtaining request to a third server, where the information obtaining request carries device identification information of the vehicle-mounted device and a type of the vehicle-mounted device;
the receiving module is further used for receiving the identification information and the verification information of the vehicle-mounted equipment sent by the third server;
the sending module is used for:
based on the second address, sending a connection request to a second server corresponding to the second address, and verifying the authenticity of the vehicle-mounted equipment by the second server based on the identification information and the verification information, wherein the connection request carries the identification information and the verification information of the vehicle-mounted equipment;
and when the verification is successful, establishing communication connection with the second server.
In one aspect, an address obtaining apparatus is provided, the apparatus including:
the receiving module is used for receiving an address acquisition request sent by the vehicle-mounted equipment;
the acquisition module is used for acquiring a second server based on at least one item of information of the position of the vehicle-mounted equipment, the identification information of the vehicle-mounted equipment or the load information of a plurality of servers;
and the sending module is used for sending the second address of the second server to the vehicle-mounted equipment.
In one possible implementation, the obtaining module is configured to perform at least one of:
acquiring a server with the minimum distance to the vehicle-mounted equipment as a second server based on the position of the vehicle-mounted equipment;
acquiring a server corresponding to the type of the vehicle-mounted equipment as a second server based on the identification information of the vehicle-mounted equipment;
and acquiring the server with the minimum load information as a second server based on the load information of the plurality of servers.
In a possible implementation manner, the address obtaining request carries a first address of the first server;
the device further comprises:
and the replacing module is used for replacing the domain name information in the first address with the domain name information of the second server to obtain a second address.
In one aspect, an electronic device is provided and includes one or more processors and one or more memories having at least one instruction stored therein, the instruction being loaded and executed by the one or more processors to implement operations performed by the connection establishment method; or, the instructions are loaded and executed by the one or more processors to implement the operations performed by the address fetch method.
In one aspect, a computer-readable storage medium having at least one instruction stored therein is provided, the instruction being loaded and executed by the processor to implement the operations performed by the connection establishment method; or the instruction is loaded and executed by the processor to realize the operation executed by the address acquisition method.
According to the embodiment of the invention, the vehicle-mounted equipment sends the request to the first server, the first server performs address conversion and returns the second address of the second server, and then sends the connection request to the second server through the second address to establish the communication connection, instead of directly sending the connection request to the server based on the preset address to establish the communication connection, an operator cannot acquire the second address of the second server in advance, and cannot intercept information or tamper the information when the communication connection is performed between the vehicle-mounted equipment and the second server, so that the safety and reliability of the established connection are effectively improved, and the accuracy of communication data is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is an implementation environment of a connection establishing method and an address obtaining method according to an embodiment of the present invention;
fig. 2 is an implementation environment of another connection establishment method and address acquisition method according to an embodiment of the present invention;
fig. 3 is a flowchart of a connection establishing method and an address obtaining method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a connection establishment apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an address obtaining apparatus according to an embodiment of the present invention;
fig. 6 is a block diagram of a terminal according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a server according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is an implementation environment of a connection establishing method and an address obtaining method according to an embodiment of the present invention. The implementation environment may include an in-vehicle device 101, a first server 102, and a plurality of second servers 103, where the in-vehicle device 101 may be connected to the first server 102 through a network or may be connected to the second servers 103 through a network.
The first server 102 is configured to provide an address obtaining service, and specifically, the first server 102 is configured to obtain a second address based on a first address sent by the vehicle-mounted device 101 and send the second address to the vehicle-mounted device 101. The second server 103 is used for providing network data services for the vehicle-mounted devices.
In the embodiment of the present invention, the vehicle-mounted device 101 may send an address acquisition request to the first server 102, and the first server 102 acquires the second address of the second server 103 for the vehicle-mounted device 101, so that the vehicle-mounted device 101 may access the second address to establish a communication connection with the third server 103.
In a possible implementation manner, fig. 2 is an implementation environment of another connection establishment method and address acquisition method provided by the embodiment of the present invention, and the implementation environment may further include a third server 104 in addition to the three devices. The vehicle-mounted device 101 may be connected to the third server 104 through a network, and the third server 104 may also be connected to the second server 103 through a network.
In the embodiment of the present invention, the third server 104 is configured to provide an information acquisition service, the vehicle-mounted device 101 may acquire the identification information and the authentication information for the vehicle-mounted device 101 by the third server 104 by sending an information acquisition request to the third server 104, and the third server 104 may also synchronously send the identification information and the authentication information of the vehicle-mounted device 101 to the second server 103, so that the authenticity of the vehicle-mounted device 101 may be verified through the two kinds of information.
Fig. 3 is a flowchart of a connection establishing method and an address obtaining method according to embodiments of the present invention, where the connection establishing method is applied to an on-board device, which may be the on-board device 101 shown in fig. 1 and 2, and the address obtaining method is applied to a first server, which may be the first server 102 shown in fig. 1 and 2. Referring to fig. 3, in the embodiment of the present invention, a flow of the connection establishing method and the address obtaining method is described in a manner of interaction among the vehicle-mounted device, the first server, the second server, and the third server, and specifically, the method may include the following steps:
301. and the vehicle-mounted equipment sends an information acquisition request to the third server, wherein the information acquisition request carries the equipment identification information of the vehicle-mounted equipment and the type of the vehicle-mounted equipment.
In the embodiment of the invention, before the vehicle-mounted device wants to establish connection with the second server, the vehicle-mounted device can acquire the identification information and the verification information of the vehicle-mounted device from the third server, and the third server can synchronize the identification information and the verification information of the vehicle-mounted device to the second server, so that when the subsequent vehicle-mounted device establishes communication connection with the second server, the second server can verify the vehicle-mounted device based on the two information of the vehicle-mounted device to determine the authenticity of the vehicle-mounted device.
The vehicle-mounted device may send an information acquisition request to the third server, where the information acquisition request may carry various pieces of information of the vehicle-mounted device, and thus the third server may generate identification information for uniquely identifying the vehicle-mounted device based on the various pieces of information of the vehicle-mounted device. Specifically, the pieces of information may be device identification information of the in-vehicle device and a type of the in-vehicle device. The information acquisition request is used for requesting the third server to generate and return identification information and verification information.
302. When receiving the information acquisition request, the third server generates identification information of the in-vehicle device based on the device identification information of the in-vehicle device and the type of the in-vehicle device.
After receiving the information acquisition request, the third server can extract the device identification information of the vehicle-mounted device and the type of the vehicle-mounted device from the information acquisition request, and further generate the identification information of the vehicle-mounted device according to the device identification information and the type, so that the identification information generated by the information can reflect the type of the vehicle-mounted device.
The type of the vehicle-mounted device may be a model of the vehicle-mounted device, a brand of the vehicle-mounted device, or a source channel of the vehicle-mounted device, which is not limited in the embodiment of the present invention.
Specifically, the first N characters of the identification information are the types of the vehicle-mounted devices, and the last M characters are the device identification information, where N, M is a positive integer. For example, if the vehicle-mounted Device is a long-security vehicle type, its type may be denoted by 100, and if it is a wide-automobile type, its type may be denoted by 200, and in a specific example, the vehicle-mounted Device is a long-security vehicle type, the Device identification information may be a Device ID, and the identification information may be a Device ID 100.
In a possible implementation manner, the third server may further obtain other information of the vehicle-mounted device, and generate the identification information based on the device identification information of the vehicle-mounted device and the other information. For example, the other information may be a license plate number of the vehicle-mounted device, a purchase location of the vehicle-mounted device, account information of the vehicle-mounted device, and the like, and in one possible implementation, the identification information generated based on the other information is analyzed, and the other information of the vehicle-mounted device may also be obtained, so that corresponding recommendation and the like may be performed.
303. The third server generates authentication information of the in-vehicle device.
The third server may generate verification information for the vehicle-mounted device in addition to the identification information of the vehicle-mounted device, wherein the identification information of the vehicle-mounted device and the verification information have a corresponding relationship. That is, after the third server generates the identification information and the verification information of the vehicle-mounted device, the correspondence relationship between the identification information and the verification information may be determined. Therefore, the vehicle-mounted equipment can be uniquely identified through the identification information, and whether the vehicle-mounted equipment is the verification information of the vehicle-mounted equipment or not and whether the vehicle-mounted equipment obtains service for the correct vehicle-mounted equipment or not can be determined through the verification information.
In one possible implementation, the verification information may also have time validity, that is, the verification information includes a validity duration. For example, the validity duration of the verification information is 0.5 hour, after the verification information is generated, if the vehicle-mounted device fails to send the identification information and the verification information to the second server for verification within 0.5 hour, the state of the verification information is set to a failure state, that is, after 0.5 hour of the generation of the verification information, the vehicle-mounted device sends the identification information and the verification information to the second server, and the second server fails to verify the vehicle-mounted device based on the identification information and the verification information.
For example, the verification information may be a dynamic secret key, each time the vehicle-mounted device wants to establish communication connection, the vehicle-mounted device may obtain the dynamic secret key from the third server, and when sending a connection request to the second server in the subsequent process, the vehicle-mounted device may be verified by the second server based on the dynamic secret key, and if the verification is successful, the vehicle-mounted device and the second server may establish communication connection. The dynamic key can be disposable and is only used when the vehicle-mounted device establishes communication connection with the second server at this time.
It should be noted that, the third server first executes step 302 and then executes step 303 for an example, the third server may also first execute step 303 and then execute step 302, or may execute step 302 and step 303 at the same time, and the execution sequence of step 302 and step 303 is not limited in the embodiment of the present invention.
304. The third server transmits the identification information and the verification information of the vehicle-mounted device to the vehicle-mounted device.
305. And the vehicle-mounted equipment receives the identification information and the verification information of the vehicle-mounted equipment sent by the third server.
306. And the vehicle-mounted equipment sends an address acquisition request to a first server corresponding to the first address based on the first address.
After the identification information and the verification information are obtained, the vehicle-mounted equipment can send a request to the server to obtain the network service. In the embodiment of the present invention, a first address may be stored in advance in the vehicle-mounted device, where the first address is an address of the first server, and when the vehicle-mounted device wants to establish a communication connection, the vehicle-mounted device may first access the first address and send an address acquisition request to the first server to acquire a second address of the second server that wants to establish a communication connection.
In the related art, the address of the server for establishing a communication connection is stored in advance in the vehicle-mounted device, the address is accessed, the connection request is directly transmitted to the server, and the communication connection is established with the server, in this way, the operator can easily intercept the data packet transmitted between the vehicle-mounted device and the server, and further modify the intercepted data packet, for example, add advertisement information and the like to the data packet, and therefore, the security of this way is poor. In the address obtaining method provided by the embodiment of the invention, an operator can only obtain the first address of the first server in advance, but cannot obtain the second address of the second server which is actually required to establish communication connection with the vehicle-mounted device, so that the data packet sent in the communication process of the vehicle-mounted device and the second server is not easy to intercept, the condition that the data packet is arbitrarily tampered can be effectively avoided, and the safety in the communication process is improved.
307. The first server receives an address acquisition request sent by the vehicle-mounted equipment.
308. The first server acquires the second server based on at least one of the position of the vehicle-mounted device, the identification information of the vehicle-mounted device, or the load information of the plurality of servers.
In the embodiment of the present invention, the first server may obtain a second server from a plurality of servers according to the information of the vehicle-mounted device or the information of the server to be selected, where the second server is a server for providing a network service for the vehicle-mounted device.
Specifically, the first server may consider one item of information, which may be identification information of the vehicle-mounted device, or load information of multiple servers, and may consider multiple items of information, which may be any two of the three items of information, or the three items of information.
In a possible implementation manner, some information in the multiple items of information may be acquired by the vehicle-mounted device and sent to the first server through an address acquisition request, or may be acquired by the first server itself, which is not limited in this embodiment of the present invention.
In a specific possible embodiment, the address obtaining request may carry a location of the vehicle-mounted device or identification information of the vehicle-mounted device. After receiving the address acquisition request, the first server may extract the location of the vehicle-mounted device or the identification information of the vehicle-mounted device from the address acquisition request.
Specifically, when the first server obtains the second server based on one or more items of information, the method may be implemented in at least one of the following manners:
in the first mode, the first server acquires a server with the minimum distance to the vehicle-mounted device as the second server based on the position of the vehicle-mounted device.
And in the second mode, the first server acquires the server corresponding to the type of the vehicle-mounted equipment as a second server based on the identification information of the vehicle-mounted equipment.
In a third mode, the first server acquires the server with the minimum load information as the second server based on the load information of the plurality of servers.
In the first mode, the server closest to the vehicle-mounted device may be used as the second server, so that the communication quality of the communication connection between the vehicle-mounted device and the second server may be effectively ensured, and the reliability of the communication may be improved. In the second mode, the server corresponding to the type of the vehicle-mounted device can be used as a second server, and the second server can provide corresponding services for the type of the vehicle-mounted device, so that the requirements of the vehicle-mounted device can be met better, and more targeted network services can be provided for the vehicle-mounted device. In the third mode, the server with the minimum load information can be used as the second server, so that the load condition of the second server is good, smooth network service can be provided for the vehicle-mounted equipment, the network blockage condition can be avoided, and the communication quality can be improved.
It should be noted that, in the three manners, only the process of obtaining the second server based on one item of information is shown, and when multiple items of information are considered, a server satisfying any two or three of the first to third manners may be used as the second server, which is not described in detail herein.
309. The first server sends the second address of the second server to the vehicle-mounted device.
After determining the second server, the first server may notify the vehicle-mounted device of a second address of the second server, so that the vehicle-mounted device establishes a communication connection with the second server. The first server may obtain the second address upon determining the second server.
The second address is obtained by the first server based on the first address and at least one of the position of the vehicle-mounted device, the identification information of the vehicle-mounted device, or the load information of multiple servers.
In a possible implementation manner, the address obtaining request may carry a first address of the first server, and the first server may obtain a second address based on the first address, and specifically, the first server may obtain the second address of the second server based on the first address and the second server. The first server may replace the domain name information in the first address with the domain name information of the second server to obtain the second address. After the second address is obtained, the first server may transmit the second address to the vehicle-mounted device.
310. And the vehicle-mounted equipment receives the second address sent by the first server.
Wherein the second address is obtained by the first server based on the first address.
311. And the vehicle-mounted equipment sends a connection request to a second server corresponding to the second address based on the second address, wherein the connection request carries the identification information and the verification information of the vehicle-mounted equipment.
And the vehicle-mounted equipment receives the second address sent by the first server, namely, the vehicle-mounted equipment can access the second address and send a connection request to the second server to acquire the network service.
312. The second server verifies the authenticity of the in-vehicle device based on the identification information and the verification information.
The second server may be connected to a third server through a network, and the third server may further send the identification information and the verification information of the vehicle-mounted device to the second server after step 303. Therefore, the second server acquires accurate verification information required by the vehicle-mounted equipment when the communication connection is to be established at this time through the third server, so that whether the verification information acquired from the third server is consistent with the verification information carried by the connection request sent by the vehicle-mounted equipment is verified, if so, the verification is successful, and if not, the verification fails.
313. And when the verification is successful, the vehicle-mounted equipment establishes communication connection with the second server.
And if the verification is successful, the second server can agree to establish communication connection with the vehicle-mounted equipment, and the second server and the vehicle-mounted equipment can establish communication connection through information interaction. In one possible implementation, both may establish a long connection. The communication connection is established between the two, a communication link is established, and information interaction can be continued based on the established communication link. Wherein the communication link is a full duplex link. That is, the in-vehicle device may transmit data to the second server, and the second server may also transmit data to the in-vehicle device. During the process of establishing the communication link, a heartbeat signal may also be sent periodically to determine the availability of the communication link, for example, a ping communication may be performed at intervals.
In the above step 301, in case of successful authentication, the second server may further send a connection failure notification to the vehicle-mounted device when the authentication fails.
It should be noted that, in steps 311 to 313, the process of sending the connection request to the second server corresponding to the second address based on the second address and establishing a communication connection with the second server is described, where the above only shows that the connection request carries the identification information and the verification information of the vehicle-mounted device, and the second server verifies the vehicle-mounted device based on two kinds of information.
In a possible implementation manner, the communication connection between the vehicle-mounted device and the second server may be implemented based on a target communication protocol, and the vehicle-mounted device may process data to be sent based on the target communication protocol to obtain a first data packet, and send the first data packet to the second server that establishes the communication connection. The vehicle-mounted device can also receive a second data packet processed by the second server based on the target communication protocol.
The header of the target communication protocol may be relatively small, for example, the target communication protocol may be a Message Queue Telemetry Transport (MQTT) protocol, and the MQTT protocol is a Message protocol based on a publish or subscribe paradigm under the International Organization for Standardization (ISO) (ISO/IEC PRF 20922), where IEC is International electrotechnical Commission (International electrotechnical Commission). It works in the Transmission Control Protocol (TCP)/IP suite, and is a publish/subscribe messaging Protocol designed for remote devices with poor hardware performance and in the case of poor network conditions.
Under the environment of the internet of vehicles, the first data packet or the second data packet obtained by processing the target communication Protocol is smaller, a channel established based on the MQTT Protocol is used for communication, the Protocol header is smaller and does not carry much information, and the Protocol header is 1/3 of the Protocol header of a hypertext Transfer Protocol (HTTP) or a hypertext Transfer Protocol over Secure Socket Layer (HTTPS), so that the size of the transmitted data packet is reduced, the integrity of data transmission can be ensured under the same environment, and particularly, the data transmission can play a good role under the condition that the weak network environment easily loses data.
Of course, the target communication protocol may also be another protocol, and the size of the data packet processed by the target communication protocol may be smaller. For example, through experiments, the communication results of an interface (socket) protocol, HTTP or HTTPS are all different from the MQTT protocol.
In a possible implementation manner, the vehicle-mounted device may further compress the data to be sent based on a target compression manner to obtain the first data packet. When the vehicle-mounted equipment sends data to the second server, the data can be compressed, so that the size of the sent data is further reduced, the integrity and the transmission efficiency of data transmission can be guaranteed under the weak network environment, and the data loss is not easy to occur.
For example, the target compression format may be a Java Cryptographic Extension (JCE), which is a set of packets that provide a framework and implementation for encryption, key generation and negotiation, and Message Authentication Code (MAC) algorithms. It provides cryptographic support for symmetric, asymmetric, block and stream ciphers, it also supports secure streams and sealed objects. It is not to export, will not call after developing and finishing the encapsulation with it. The JCE has good encapsulation, and adopts a streaming structure, so that the expansibility is good. Data compression is carried out through the JCE, the sending data are compressed to be smaller, the sending data are further reduced, and the data sending situation is better under the weak network situation. Of course, the target compression format may also be another compression format, which is not limited in this embodiment of the present invention.
In a specific possible embodiment, the vehicle-mounted device and the second server may further be provided with a retransmission mechanism, and when the vehicle-mounted device fails to transmit the first data packet, the first data packet may be retransmitted until the transmission is successful. Similarly, when the second server fails to send the second data packet, the second server may resend the second data packet until the sending is successful. That is, a retransmission mechanism may be provided until the data transmission is successful, so as to further ensure the reliability and data integrity of the data transmission.
The connection establishing method can be applied to the vehicle networking environment, for example, can be applied to application scenes such as vehicle navigation, information push, Artificial Intelligence (AI) layout, position sharing, aggregation, intelligent push, scene distribution, application update and the like, and can effectively ensure the safety, reliability and data integrity of data transmission in the application scenes.
According to the embodiment of the invention, the vehicle-mounted equipment sends the request to the first server, the first server performs address conversion and returns the second address of the second server, and then sends the connection request to the second server through the second address to establish the communication connection, instead of directly sending the connection request to the server based on the preset address to establish the communication connection, an operator cannot acquire the second address of the second server in advance, and cannot intercept information or tamper the information when the communication connection is performed between the vehicle-mounted equipment and the second server, so that the safety and reliability of the established connection are effectively improved, and the accuracy of communication data is improved.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
Fig. 4 is a schematic structural diagram of a connection establishment apparatus according to an embodiment of the present invention, and referring to fig. 4, the apparatus may include:
a sending module 401, configured to send, based on a first address, an address obtaining request to a first server corresponding to the first address;
a receiving module 402, configured to receive a second address sent by the first server, where the second address is obtained by the first server based on the first address;
the connection module 403 is configured to send a connection request to a second server corresponding to the second address based on the second address, and establish a communication connection with the second server.
In a possible implementation manner, the address acquisition request carries a location of the vehicle-mounted device or identification information of the vehicle-mounted device; the second address is obtained by the first server based on the first address and at least one of the location of the vehicle-mounted device, the identification information of the vehicle-mounted device, or the load information of the plurality of servers.
In a possible implementation manner, the sending module 401 is further configured to process data to be sent based on a target communication protocol to obtain a first data packet, and send the first data packet to the second server that establishes the communication connection.
In a possible implementation manner, the receiving module 402 is further configured to receive a second data packet processed by the second server based on the target communication protocol.
In a possible implementation manner, the sending module 401 is further configured to compress the data to be sent based on a target compression manner to obtain a first data packet.
In a possible implementation manner, the sending module 401 is further configured to send an information obtaining request to a third server, where the information obtaining request carries the device identification information of the vehicle-mounted device and the type of the vehicle-mounted device;
the receiving module 402 is further configured to receive the identification information and the verification information of the vehicle-mounted device sent by the third server;
the sending module 401 is configured to:
based on the second address, sending a connection request to a second server corresponding to the second address, and verifying the authenticity of the vehicle-mounted equipment by the second server based on the identification information and the verification information, wherein the connection request carries the identification information and the verification information of the vehicle-mounted equipment;
and when the verification is successful, establishing a communication connection with the second server.
According to the device provided by the embodiment of the disclosure, the request is sent to the first server, the first server performs address conversion, the second address of the second server is returned, and then the connection request is sent to the second server through the second address to establish the communication connection, instead of directly sending the connection request to the server based on the preset address to establish the communication connection, an operator cannot acquire the second address of the second server in advance, and cannot intercept or tamper information when the communication connection is performed between the vehicle-mounted device and the second server, so that the safety and reliability of the established connection are effectively improved, and the accuracy of communication data is improved.
It should be noted that: in the connection establishing apparatus provided in the foregoing embodiment, when establishing a connection, only the division of the functional modules is illustrated, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the electronic device is divided into different functional modules to complete all or part of the functions described above. In addition, the connection establishing apparatus and the connection establishing method provided in the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments in detail and are not described herein again.
Fig. 5 is a schematic structural diagram of an address obtaining apparatus according to an embodiment of the present invention, and referring to fig. 5, the apparatus may include:
a receiving module 501, configured to receive an address obtaining request sent by a vehicle-mounted device;
an obtaining module 502, configured to obtain a second server based on at least one of a location of the vehicle-mounted device, identification information of the vehicle-mounted device, or load information of multiple servers;
a sending module 503, configured to send the second address of the second server to the vehicle-mounted device.
In one possible implementation, the obtaining module 502 is configured to perform at least one of the following:
acquiring a server with the smallest distance to the vehicle-mounted equipment as a second server based on the position of the vehicle-mounted equipment;
acquiring a server corresponding to the type of the vehicle-mounted equipment as a second server based on the identification information of the vehicle-mounted equipment;
and acquiring the server with the minimum load information as a second server based on the load information of the plurality of servers.
In one possible implementation, the address obtaining request carries a first address of the first server;
the device also includes:
and the replacing module is used for replacing the domain name information in the first address with the domain name information of the second server to obtain a second address.
According to the device provided by the embodiment of the disclosure, address conversion is performed based on the address acquisition request sent by the vehicle-mounted device, and the second address of the second server is returned to the vehicle-mounted device, so that the second address of the second server cannot be acquired by an operator in advance, and information cannot be intercepted or tampered when communication connection is performed between the vehicle-mounted device and the second server, so that the safety and reliability of the established connection are effectively improved, and the accuracy of communication data is improved.
It should be noted that: in the address obtaining apparatus provided in the foregoing embodiment, when obtaining an address, only the division of the functional modules is described as an example, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the first server is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the address obtaining apparatus and the address obtaining method provided in the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.
The electronic device may be a terminal shown in fig. 6 described below, or may be a server shown in fig. 7 described below, which is not limited in this embodiment of the present invention.
Fig. 6 is a block diagram of a terminal according to an embodiment of the present invention. The terminal 600 may be: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion video Experts compression standard Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion video Experts compression standard Audio Layer 4), a notebook computer or a desktop computer. The terminal 600 may also be referred to by other names such as user equipment, portable terminal, laptop terminal, desktop terminal, etc.
In general, the terminal 600 includes: a processor 601 and a memory 602.
The processor 601 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 601 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 601 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 601 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, processor 601 may also include an AI processor for processing computational operations related to machine learning.
The memory 602 may include one or more computer-readable storage media, which may be non-transitory. The memory 602 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in the memory 602 is used to store at least one instruction for execution by the processor 601 to implement the steps performed by the terminal in the connection establishment method and the address acquisition method provided by the method embodiments of the present invention.
In some embodiments, the terminal 600 may further optionally include: a peripheral interface 603 and at least one peripheral. The processor 601, memory 602, and peripheral interface 603 may be connected by buses or signal lines. Various peripheral devices may be connected to the peripheral interface 603 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of a radio frequency circuit 604, a touch screen display 605, a camera 606, an audio circuit 607, a positioning component 608, and a power supply 609.
The peripheral interface 603 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 601 and the memory 602. In some embodiments, the processor 601, memory 602, and peripherals interface 603 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 601, the memory 602, and the peripheral interface 603 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.
The Radio Frequency circuit 604 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 604 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 604 converts an electrical signal into an electromagnetic signal to be transmitted, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 604 comprises: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 604 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 604 may further include NFC (Near Field Communication) related circuits, which are not limited in the present invention.
The display 605 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 605 is a touch display screen, the display screen 605 also has the ability to capture touch signals on or over the surface of the display screen 605. The touch signal may be input to the processor 601 as a control signal for processing. At this point, the display 605 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display 605 may be one, providing the front panel of the terminal 600; in other embodiments, the display 605 may be at least two, respectively disposed on different surfaces of the terminal 600 or in a folded design; in still other embodiments, the display 605 may be a flexible display disposed on a curved surface or on a folded surface of the terminal 600. Even more, the display 605 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The Display 605 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and the like.
The camera assembly 606 is used to capture images or video. Optionally, camera assembly 606 includes a front camera and a rear camera. Generally, a front camera is disposed at a front panel of the terminal, and a rear camera is disposed at a rear surface of the terminal. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, the main camera and the wide-angle camera are fused to realize panoramic shooting and a VR (Virtual Reality) shooting function or other fusion shooting functions. In some embodiments, camera assembly 606 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.
The positioning component 608 is used for positioning the current geographic Location of the terminal 600 to implement navigation or LBS (Location Based Service).
In some embodiments, the terminal 600 also includes one or more sensors 610. The one or more sensors 610 include, but are not limited to: acceleration sensor 611, gyro sensor 612, pressure sensor 613, optical sensor 615, and proximity sensor 616.
The acceleration sensor 611 may detect the magnitude of acceleration in three coordinate axes of the coordinate system established with the terminal 600. For example, the acceleration sensor 611 may be used to detect components of the gravitational acceleration in three coordinate axes. The processor 601 may control the touch screen display 605 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 611. The acceleration sensor 611 may also be used for acquisition of motion data of a game or a user.
The gyro sensor 612 may detect a body direction and a rotation angle of the terminal 600, and the gyro sensor 612 may acquire a 3D motion of the user on the terminal 600 in cooperation with the acceleration sensor 611. The processor 601 may implement the following functions according to the data collected by the gyro sensor 612: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.
The pressure sensor 613 may be disposed on a side frame of the terminal 600 and/or on a lower layer of the touch display screen 605. When the pressure sensor 613 is disposed on the side frame of the terminal 600, a user's holding signal of the terminal 600 can be detected, and the processor 601 performs left-right hand recognition or shortcut operation according to the holding signal collected by the pressure sensor 613. When the pressure sensor 613 is arranged at the lower layer of the touch display screen 605, the processor 601 controls the operability control on the UI interface according to the pressure operation of the user on the touch display screen 605. The operability control comprises at least one of a button control, a scroll bar control, an icon control, and a menu control.
The optical sensor 615 is used to collect the ambient light intensity. In one embodiment, processor 601 may control the display brightness of touch display 605 based on the ambient light intensity collected by optical sensor 615. Specifically, when the ambient light intensity is high, the display brightness of the touch display screen 605 is increased; when the ambient light intensity is low, the display brightness of the touch display screen 605 is turned down. In another embodiment, the processor 601 may also dynamically adjust the shooting parameters of the camera assembly 606 according to the ambient light intensity collected by the optical sensor 615.
A proximity sensor 616, also known as a distance sensor, is typically provided on the front panel of the terminal 600. The proximity sensor 616 is used to collect the distance between the user and the front surface of the terminal 600. In one embodiment, when the proximity sensor 616 detects that the distance between the user and the front surface of the terminal 600 gradually decreases, the processor 601 controls the touch display 605 to switch from the bright screen state to the dark screen state; when the proximity sensor 616 detects that the distance between the user and the front surface of the terminal 600 becomes gradually larger, the touch display 605 is controlled by the processor 601 to switch from the message screen state to the bright screen state.
Those skilled in the art will appreciate that the configuration shown in fig. 6 is not intended to be limiting of terminal 600 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.
Fig. 7 is a schematic structural diagram of a server 700 according to an embodiment of the present invention, where the server 700 may generate a relatively large difference due to different configurations or performances, and may include one or more processors (CPUs) 701 and one or more memories 702, where the memory 702 stores at least one instruction, and the at least one instruction is loaded and executed by the processors 701 to implement the steps executed by the server in the connection establishment method and the address obtaining method provided in the foregoing embodiments of the method. Of course, the server may also have components such as a wired or wireless network interface, a keyboard, and an input/output interface, so as to perform input/output, and the server may also include other components for implementing the functions of the device, which are not described herein again.
In an exemplary embodiment, there is also provided a computer readable storage medium, such as a memory including instructions executable by a processor to perform the connection establishment method or the address acquisition method in the above embodiments. For example, the computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a Compact Disc Read-Only Memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (14)
1. A connection establishment method is applied to vehicle-mounted equipment, and comprises the following steps:
based on a first address, sending an address acquisition request to a first server corresponding to the first address;
receiving a second address sent by the first server, wherein the second address is obtained by replacing domain name information in the first address with domain name information of a second server by the first server;
and sending a connection request to the second server corresponding to the second address based on the second address, and establishing communication connection with the second server.
2. The method of claim 1, wherein after establishing the communication connection with the second server, the method further comprises at least one of:
processing data to be sent based on a target communication protocol to obtain a first data packet, and sending the first data packet to the second server establishing communication connection;
and receiving a second data packet processed by the second server based on a target communication protocol.
3. The method of claim 2, wherein the processing the data to be transmitted based on the target communication protocol to obtain a first data packet further comprises:
and compressing the data to be sent based on a target compression mode to obtain a first data packet.
4. The method of claim 1, further comprising:
sending an information acquisition request to a third server, wherein the information acquisition request carries equipment identification information of the vehicle-mounted equipment and the type of the vehicle-mounted equipment;
receiving identification information and verification information of the vehicle-mounted equipment sent by the third server;
the sending a connection request to a second server corresponding to the second address based on the second address, and establishing a communication connection with the second server includes:
based on the second address, sending a connection request to a second server corresponding to the second address, and verifying the authenticity of the vehicle-mounted equipment by the second server based on the identification information and the verification information, wherein the connection request carries the identification information and the verification information of the vehicle-mounted equipment;
and when the verification is successful, establishing communication connection with the second server.
5. An address acquisition method applied to a first server, the method comprising:
receiving an address acquisition request sent by vehicle-mounted equipment, wherein the address acquisition request carries a first address of the first server;
acquiring a second server based on at least one of the position of the vehicle-mounted equipment, the identification information of the vehicle-mounted equipment or the load information of a plurality of servers;
replacing the domain name information in the first address with the domain name information of the second server to obtain a second address;
and sending the second address of the second server to the vehicle-mounted equipment.
6. The method according to claim 5, wherein the obtaining of the second server based on at least one of the location of the vehicle-mounted device, the identification information of the vehicle-mounted device, or the load information of a plurality of servers comprises at least one of:
acquiring a server with the smallest distance to the vehicle-mounted equipment as a second server based on the position of the vehicle-mounted equipment;
acquiring a server corresponding to the type of the vehicle-mounted equipment as a second server based on the identification information of the vehicle-mounted equipment;
and acquiring the server with the minimum load information as a second server based on the load information of the plurality of servers.
7. A connection establishment apparatus, characterized in that the apparatus comprises:
the sending module is used for sending an address acquisition request to a first server corresponding to a first address based on the first address;
a receiving module, configured to receive a second address sent by the first server, where the second address is obtained by replacing domain name information in the first address with domain name information of a second server by the first server;
and the connection module is used for sending a connection request to the second server corresponding to the second address based on the second address and establishing communication connection with the second server.
8. The apparatus according to claim 7, wherein the sending module is further configured to process data to be sent based on a target communication protocol to obtain a first data packet, and send the first data packet to the second server that establishes the communication connection;
the receiving module is further configured to receive a second data packet processed by the second server based on a target communication protocol.
9. The apparatus of claim 8, wherein the sending module is further configured to compress the data to be sent based on a target compression mode to obtain a first data packet.
10. The apparatus according to claim 7, wherein the sending module is further configured to send an information obtaining request to a third server, where the information obtaining request carries device identification information of a vehicle-mounted device and a type of the vehicle-mounted device;
the receiving module is further used for receiving the identification information and the verification information of the vehicle-mounted equipment sent by the third server;
the sending module is used for:
based on the second address, sending a connection request to a second server corresponding to the second address, and verifying the authenticity of the vehicle-mounted equipment by the second server based on the identification information and the verification information, wherein the connection request carries the identification information and the verification information of the vehicle-mounted equipment;
and when the verification is successful, establishing communication connection with the second server.
11. An address acquisition apparatus, characterized in that the apparatus comprises:
the receiving module is used for receiving an address obtaining request sent by the vehicle-mounted equipment, wherein the address obtaining request carries a first address of the first server;
the acquisition module is used for acquiring a second server based on at least one item of information of the position of the vehicle-mounted equipment, the identification information of the vehicle-mounted equipment or the load information of a plurality of servers;
the replacing module is used for replacing the domain name information in the first address with the domain name information of the second server to obtain a second address;
and the sending module is used for sending the second address of the second server to the vehicle-mounted equipment.
12. The apparatus of claim 11, wherein the obtaining module is configured to perform at least one of:
acquiring a server with the minimum distance to the vehicle-mounted equipment as a second server based on the position of the vehicle-mounted equipment;
acquiring a server corresponding to the type of the vehicle-mounted equipment as a second server based on the identification information of the vehicle-mounted equipment;
and acquiring the server with the minimum load information as a second server based on the load information of the plurality of servers.
13. An electronic device, comprising one or more processors and one or more memories having stored therein at least one instruction that is loaded and executed by the one or more processors to perform operations performed by the connection establishment method of any one of claims 1-4; or which are loaded and executed by the one or more processors to perform the operations performed by the address retrieval method of claim 5 and claim 6.
14. A computer-readable storage medium having stored therein at least one instruction, which is loaded and executed by a processor to perform operations performed by the connection establishment method of any one of claims 1 to 4; or operations carried out by a processor to implement the address fetch methods of claims 5 and 6.
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