CN112333296B - Equipment discovery method and system - Google Patents
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- CN112333296B CN112333296B CN202011119418.6A CN202011119418A CN112333296B CN 112333296 B CN112333296 B CN 112333296B CN 202011119418 A CN202011119418 A CN 202011119418A CN 112333296 B CN112333296 B CN 112333296B
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Abstract
The invention provides a device discovery method and a device discovery system, wherein the method comprises the following steps: step 1: determining a first Internet Protocol (IP) address in a preset website range configured by a user; step 2: sending a device search request by taking a first Internet Protocol (IP) address as a destination address; and step 3: and acquiring the equipment information of all the terminal equipment according to the feedback information sent by the received terminal equipment corresponding to the first internet protocol IP address based on the equipment searching request. According to the method, the first internet protocol IP address in the preset website range configured by the user is determined, the first internet protocol IP address is used as the destination address to send the equipment search request, and then the equipment information of all the terminal equipment is obtained according to the feedback information sent by the received terminal equipment corresponding to the first internet protocol IP address based on the equipment search request, so that the efficiency of the communication equipment in equipment discovery is improved, and the stability of the equipment discovery is improved.
Description
Technical Field
The present invention relates to the field of network communication technologies, and in particular, to a device discovery method and system.
Background
When a plurality of front-end IPCs (IP cameras) are added, when the equipment and the IPCs are located in a network based on a Dynamic Host Configuration Protocol (DHCP), the equipment scans the IPCs located in the network, adds the IP addresses of the scanned IPCs into a management list, acquires video information of the IPCs for each IPC in the management list, determines whether to add the IPC, and deletes the IPC from the management list if not.
In a network without sub-networks being divided, the central management node can complete the discovery of all sensor nodes in the network through the simple broadcast (multicast), but this is not applicable in a sub-network, and broadcast (multicast) messages are shielded by sub-network routers so as not to discover sensor nodes in other sub-networks. Although some high-end routers support cross-segment forwarding for multicast, they are rarely available in such large-scale, low-cost networks. The communication equipment has the technical problems of low efficiency and poor stability when equipment discovery is carried out in the prior art.
Therefore, in order to relieve the pressure of the main NTP server, a device discovery method and system are needed.
Disclosure of Invention
The invention provides a device discovery method, which is used for solving the technical problems of low efficiency and poor stability of communication equipment during device discovery in the prior art.
The invention provides a device discovery method, which executes the following steps:
step 1: determining a first Internet Protocol (IP) address in a preset website range configured by a user;
step 2: sending a device search request by taking the first internet protocol IP address as a destination address;
and step 3: and acquiring the equipment information of all the terminal equipment according to the feedback information sent by the received terminal equipment corresponding to the first internet protocol IP address based on the equipment searching request.
Further, the step 1: determining a first Internet Protocol (IP) address in a preset website range configured by a user, wherein the first IP address comprises the following steps:
and determining a first Internet Protocol (IP) address in a website range configured by a user in a random scanning mode.
Further, in step 1, the preset website range corresponds to at least two subnets.
Further, in the step 2, the device search request is used for searching for a terminal device found to be in the network.
Further, in step 3, the feedback information is used to indicate a network segment of a subnet where the terminal device is located.
Further, the step 3: acquiring the device information of all the terminal devices according to the feedback information sent by the received terminal devices corresponding to the first internet protocol IP address based on the device search request, and executing the following steps:
step S31: if feedback information sent by the terminal equipment corresponding to the first internet protocol IP address based on the equipment searching request is received, determining a first subnet of the at least two subnets where the terminal equipment is located according to the feedback information;
step S32: and acquiring the equipment information of all the terminal equipment in the first subnet.
Further, in step 2, sending a device search request with the first internet protocol IP address as a destination address, including:
sending a device search request by taking the first internet protocol IP address as a destination address according to a preset sending frequency, wherein the number of the requests of the device search request sent each time is N; the determination method of N is as follows:
step A2.1: acquiring the number of feedback information corresponding to each equipment search request in a period of time T2 before the current time according to the same time interval T1; the feedback information corresponding to any equipment search request means that the feedback information is the feedback information sent by the terminal equipment based on any equipment search request;
determining the sending time t corresponding to each first equipment search request of which the number of the corresponding feedback information is less than the preset number;
step A2.2: taking the sending time t as an independent variable and the number of corresponding feedback information as a dependent variable, and constructing a fitting function f (t) of the sending time t and the dependent variable;
step A2.3: determining a request loss statistic;
wherein S is the request loss statistic, λ is the transmission frequency of the device search request, and f (t) is the fitting function;
step A2.4: calculating the theoretical transmission number of the equipment search request in the search process:
wherein, M is the theoretical transmission number, maxM is the maximum number of the numbers of the feedback information corresponding to all the device search requests in the period of time T2, T is the searched time length of the search process, and floor is a downward integer function;
step A2.5: and controlling the number of the device search requests sent each time in a period T2 after the current time to be the smaller value of the theoretical transmission number and maxM.
The equipment discovery method provided by the embodiment of the invention has the following beneficial effects: the method comprises the steps of determining a first Internet Protocol (IP) address in a preset website range configured by a user, sending an equipment search request by taking the first IP address as a destination address, and then obtaining equipment information of all terminal equipment according to feedback information sent by the received terminal equipment corresponding to the first IP address based on the equipment search request, so that the efficiency of communication equipment in equipment discovery is improved, and the stability of equipment discovery is improved.
The present invention also provides a device discovery system, including:
the IP address determining module is used for determining a first Internet protocol IP address in a preset website range configured by a user;
a device search request discovery module, configured to send a device search request using the first IP address as a destination address;
and the equipment information acquisition module is used for acquiring the equipment information of all the terminal equipment according to the feedback information sent by the received terminal equipment corresponding to the first internet protocol IP address based on the equipment search request.
Further, the IP address determining module determines a first Internet protocol IP address in a website range configured by a user in a random scanning mode.
Further, the preset website range configured by the user corresponds to at least two subnets.
The equipment discovery system provided by the embodiment of the invention has the following beneficial effects: the method comprises the steps of determining a first internet protocol IP address in a preset website range configured by a user by means of an IP address determining module, sending an equipment search request by taking the first internet protocol IP address as a destination address by means of an equipment search request discovering module, and acquiring equipment information of all terminal equipment by means of an equipment information acquiring module according to feedback information sent by the received terminal equipment corresponding to the first internet protocol IP address based on the equipment search request, so that the efficiency of communication equipment in equipment discovery is improved, and the stability of equipment discovery is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flowchart of a device discovery method according to an embodiment of the present invention;
fig. 2 is a block diagram of a device discovery system according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
An embodiment of the present invention provides a device discovery method, as shown in fig. 1, where the method includes the following steps:
step 1: determining a first Internet Protocol (IP) address in a preset website range configured by a user;
step 2: sending a device search request by taking the first internet protocol IP address as a destination address;
and step 3: and acquiring the equipment information of all the terminal equipment according to the feedback information sent by the received terminal equipment corresponding to the first internet protocol IP address based on the equipment searching request.
The working principle of the technical scheme is as follows: in step 2, the device search request is used to search for a terminal device found to be in the network. In the step 3, the feedback information is used to indicate a network segment of a subnet where the terminal device is located, and since the network segments corresponding to the terminal devices are different, the device information of the terminal device can be obtained based on the feedback information, and the obtained device information is the network segment corresponding to the terminal device.
In the invention, first, a first Internet Protocol (IP) address in a preset website range configured by a user is determined; then, sending a device search request by taking the first internet protocol IP address as a destination address; and finally, acquiring the equipment information of all the terminal equipment according to the feedback information sent by the received terminal equipment corresponding to the first internet protocol IP address based on the equipment search request.
The beneficial effects of the above technical scheme are: the method comprises the steps of determining a first Internet Protocol (IP) address in a preset website range configured by a user, sending an equipment search request by taking the first IP address as a destination address, and then obtaining equipment information of all terminal equipment according to feedback information sent by the received terminal equipment corresponding to the first IP address based on the equipment search request, so that the efficiency of communication equipment in equipment discovery is improved, and the stability of equipment discovery is improved.
In one embodiment, the step 1: determining a first Internet Protocol (IP) address in a preset website range configured by a user, wherein the first IP address comprises the following steps:
and determining a first Internet Protocol (IP) address in a website range configured by a user in a random scanning mode.
The working principle of the technical scheme is as follows: in step 1, the preset website range corresponds to at least two subnets.
The beneficial effects of the above technical scheme are: a method of determining a first internet protocol, IP, address of a user-configured pre-set range of network addresses is provided.
In one embodiment, the step 3: acquiring the device information of all the terminal devices according to the feedback information sent by the received terminal devices corresponding to the first internet protocol IP address based on the device search request, and executing the following steps:
step S31: if feedback information sent by the terminal equipment corresponding to the first internet protocol IP address based on the equipment searching request is received, determining a first subnet of the at least two subnets where the terminal equipment is located according to the feedback information;
step S32: and acquiring the equipment information of all the terminal equipment in the first subnet.
The working principle of the technical scheme is as follows: in view of the fact that the feedback information is used for indicating the network segment of the subnet where the terminal device is located, when the device information of all the terminal devices is obtained, first, a first subnet of at least two subnets where the terminal device is located is determined according to the received feedback information, and then the device information of all the terminal devices in the first subnet is obtained.
The beneficial effects of the above technical scheme are: a specific step of acquiring device information of all terminal devices according to feedback information sent by the received terminal device corresponding to the first internet protocol IP address based on the device search request is provided.
In one embodiment, in the step 2, sending the device search request with the first internet protocol IP address as the destination address includes:
sending a device search request by taking the first internet protocol IP address as a destination address according to a preset sending frequency, wherein the number of the requests of the device search request sent each time is N; the determination method of N is as follows:
step A2.1: acquiring the number of feedback information corresponding to each equipment search request in a period of time T2 before the current time according to the same time interval T1; the feedback information corresponding to any equipment search request means that the feedback information is the feedback information sent by the terminal equipment based on any equipment search request;
determining the sending time t corresponding to each first equipment search request of which the number of the corresponding feedback information is less than the preset number;
for example, if T1 is 1 second, and T2 is one day, all packet loss data in one day are obtained, for example, the 1 st second packet loss 0, the 2 nd second packet loss 0, … … th 100 th second packet loss 3, 101 th second packet loss 3, 3 … … th 1000 th second packet loss 21, 1001 st second packet loss 23, 23 … …
Step A2.2: taking the sending time t as an independent variable and the number of corresponding feedback information as a dependent variable, and constructing a fitting function f (t) of the sending time t and the dependent variable;
step A2.3: determining a request loss statistic;
wherein S is the request loss statistic, λ is the transmission frequency of the device search request, and f (t) is the fitting function;
step A2.4: calculating the theoretical transmission number of the equipment search request in the search process:
wherein, M is the theoretical transmission number, maxM is the maximum number of the numbers of the feedback information corresponding to all the device search requests in the period of time T2, T is the searched time length of the search process, and floor is a downward integer function;
step A2.5: and controlling the number of the device search requests sent each time in a period T2 after the current time to be the smaller value of the theoretical transmission number and maxM.
The beneficial effects of the above technical scheme are: by utilizing the technology, the number of searched devices can be intelligently and effectively controlled in the process of sending the device searching request, so that the phenomena of low efficiency, packet loss and the like which are unstable due to overload in the searching process caused by overlarge searching number in the searching process are avoided, overlarge pressure on a server caused by long-term high load is also avoided, and the service life of the server is shortened; meanwhile, through the process, the problem of resource waste caused by the fact that the searching quantity is too small in the searching process can be solved.
As shown in fig. 2, an embodiment of the present invention provides a device discovery system, including:
an IP address determining module 201, configured to determine a first internet protocol IP address in a preset website range configured by a user;
a device search request discovery module 202, configured to send a device search request with the first IP address as a destination address;
the device information obtaining module 203 is configured to obtain device information of all terminal devices according to the feedback information sent by the received terminal device corresponding to the first internet protocol IP address based on the device search request.
The working principle of the technical scheme is as follows: the device search request is used for searching and discovering the terminal device in the network. The feedback information is used for indicating the network segment of the subnet where the terminal device is located.
In the present invention, the IP address determining module 201 determines a first internet protocol IP address in a preset website range configured by a user; the device search request discovery module 202 sends a device search request with the first IP address as a destination address; the device information obtaining module 203 obtains the device information of all the terminal devices according to the feedback information sent by the received terminal devices corresponding to the first internet protocol IP address based on the device search request.
The beneficial effects of the above technical scheme are: the method comprises the steps of determining a first internet protocol IP address in a preset website range configured by a user by means of an IP address determining module, sending an equipment search request by taking the first internet protocol IP address as a destination address by means of an equipment search request discovering module, and acquiring equipment information of all terminal equipment by means of an equipment information acquiring module according to feedback information sent by the received terminal equipment corresponding to the first internet protocol IP address based on the equipment search request, so that the efficiency of communication equipment in equipment discovery is improved, and the stability of equipment discovery is improved.
In one embodiment, the IP address determining module 201 determines the first internet protocol IP address in the website range configured by the user through a random scanning manner.
The working principle of the technical scheme is as follows: the preset website range configured by the user corresponds to at least two subnets.
The beneficial effects of the above technical scheme are: a manner is provided by which an IP address determination module specifies a first internet protocol IP address within a user-configured web site range.
In one embodiment, the device information obtaining module 203 includes:
a first subnet determining unit, configured to determine, if feedback information sent by a terminal device corresponding to the first internet protocol IP address based on the device search request is received, a first subnet of the at least two subnets where the terminal device is located according to the feedback information;
and the device information acquisition unit is used for acquiring the device information of all the terminal devices in the first subnet.
The working principle of the technical scheme is as follows: in view of the fact that the feedback information is used for indicating the network segment of the subnet where the terminal device is located, when the device information of all the terminal devices is obtained, the first subnet determining unit determines the first subnet of the at least two subnets where the terminal device is located according to the received feedback information, and the device information obtaining unit obtains the device information of all the terminal devices located in the first subnet.
The beneficial effects of the above technical scheme are: by means of the first subnet determining unit and the device information obtaining unit, the device information of all terminal devices can be obtained from the feedback information sent by the received terminal device corresponding to the first internet protocol IP address based on the device search request.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A device discovery method, characterized in that said method performs the steps of:
step 1: determining a first Internet Protocol (IP) address in a preset website range configured by a user;
step 2: sending a device search request by taking the first internet protocol IP address as a destination address;
and step 3: acquiring equipment information of all terminal equipment according to feedback information sent by the received terminal equipment corresponding to the first internet protocol IP address based on the equipment search request;
wherein, in the step 2, sending the device search request with the first internet protocol IP address as the destination address includes:
sending a device search request by taking the first internet protocol IP address as a destination address according to a preset sending frequency, wherein the number of the requests of the device search request sent each time is N; the determination method of N is as follows:
step A2.1: acquiring the number of feedback information corresponding to each equipment search request in a period of time T2 before the current time according to the same time interval T1; the feedback information corresponding to any equipment search request means that the feedback information is the feedback information sent by the terminal equipment based on any equipment search request;
determining the sending time t corresponding to each first equipment search request of which the number of the corresponding feedback information is less than the preset number;
step A2.2: taking the sending time t as an independent variable and the number of corresponding feedback information as a dependent variable, and constructing a fitting function f (t) of the sending time t and the dependent variable;
step A2.3: determining a request loss statistic;
wherein S is the request loss statistic, λ is the transmission frequency of the device search request, and f (t) is the fitting function;
step A2.4: calculating the theoretical transmission number of the equipment search request in the search process:
wherein M is the theoretical transmission number, max M is the maximum number of the number of feedback information corresponding to all device search requests within the period of time T2, T is the time length already searched in the search process, and floor is a downward integer function;
step A2.5: and controlling the number of the device search requests sent each time in a period of time T2 after the current time to be the smaller value of the theoretical transmission number and max M.
2. The method of claim 1, wherein the step 1: determining a first Internet Protocol (IP) address in a preset website range configured by a user, wherein the first IP address comprises the following steps:
and determining a first Internet Protocol (IP) address in a website range configured by a user in a random scanning mode.
3. The method of claim 1, wherein in step 1, the preset web address range corresponds to at least two subnets.
4. The method of claim 1, wherein in the step 2, the device search request is for searching for a terminal device that is found to be in a network.
5. The method of claim 3, wherein in the step 3, the feedback information is used for indicating a network segment of a subnet in which the terminal device is located.
6. The method of claim 5, wherein step 3: acquiring the device information of all the terminal devices according to the feedback information sent by the received terminal devices corresponding to the first internet protocol IP address based on the device search request, and executing the following steps:
step S31: if feedback information sent by the terminal equipment corresponding to the first internet protocol IP address based on the equipment searching request is received, determining a first subnet of the at least two subnets where the terminal equipment is located according to the feedback information;
step S32: and acquiring the equipment information of all the terminal equipment in the first subnet.
7. A device discovery system, comprising:
the IP address determining module is used for determining a first Internet protocol IP address in a preset website range configured by a user;
a device search request discovery module, configured to send a device search request using the first IP address as a destination address;
the equipment information acquisition module is used for acquiring equipment information of all terminal equipment according to the feedback information sent by the received terminal equipment corresponding to the first internet protocol IP address based on the equipment search request;
wherein the sending of the device search request with the first internet protocol IP address as the destination address comprises:
sending a device search request by taking the first internet protocol IP address as a destination address according to a preset sending frequency, wherein the number of the requests of the device search request sent each time is N; the determination method of N is as follows:
step A2.1: acquiring the number of feedback information corresponding to each equipment search request in a period of time T2 before the current time according to the same time interval T1; the feedback information corresponding to any equipment search request means that the feedback information is the feedback information sent by the terminal equipment based on any equipment search request;
determining the sending time t corresponding to each first equipment search request of which the number of the corresponding feedback information is less than the preset number;
step A2.2: taking the sending time t as an independent variable and the number of corresponding feedback information as a dependent variable, and constructing a fitting function f (t) of the sending time t and the dependent variable;
step A2.3: determining a request loss statistic;
wherein S is the request loss statistic, λ is the transmission frequency of the device search request, and f (t) is the fitting function;
step A2.4: calculating the theoretical transmission number of the equipment search request in the search process:
wherein M is the theoretical transmission number, max M is the maximum number of the number of feedback information corresponding to all device search requests within the period of time T2, T is the time length already searched in the search process, and floor is a downward integer function;
step A2.5: and controlling the number of the device search requests sent each time in a period of time T2 after the current time to be the smaller value of the theoretical transmission number and max M.
8. The system of claim 7, wherein the IP address determination module determines the first internet protocol IP address in the user-configured web address range by means of a random scan.
9. The system of claim 7, wherein the user-configured predefined web address ranges correspond to at least two subnets.
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| JP2011135453A (en) * | 2009-12-25 | 2011-07-07 | Sogo Keibi Hosho Co Ltd | Control apparatus, control method, and control program |
| CN108200567A (en) * | 2018-01-18 | 2018-06-22 | 浙江大华技术股份有限公司 | A kind of method for discovering equipment and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011135453A (en) * | 2009-12-25 | 2011-07-07 | Sogo Keibi Hosho Co Ltd | Control apparatus, control method, and control program |
| CN108200567A (en) * | 2018-01-18 | 2018-06-22 | 浙江大华技术股份有限公司 | A kind of method for discovering equipment and equipment |
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