CN116647587A - Power transmission and transformation equipment Internet of things sensor access method and device and electronic equipment - Google Patents
Power transmission and transformation equipment Internet of things sensor access method and device and electronic equipment Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 39
- 230000009466 transformation Effects 0.000 title claims abstract description 33
- 230000004044 response Effects 0.000 claims abstract description 27
- 230000006855 networking Effects 0.000 claims 3
- 238000004891 communication Methods 0.000 abstract description 20
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- 238000004590 computer program Methods 0.000 description 8
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Classifications
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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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
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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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
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/54—Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the invention discloses a method and a device for accessing an Internet of things sensor of power transmission and transformation equipment and electronic equipment. One embodiment of the method comprises the following steps: the sensor to be accessed searches a plurality of sink nodes supporting access and respectively sends data to the sink nodes; for each sink node in the plurality of sink nodes, sending a registration application to a target access node in response to receiving data sent by the sensor to be accessed; the target access node determines a target sink node according to the signal intensity and the route progression of each sink node in the plurality of sink nodes, sends response information representing permission to register the sensor to be accessed under the target sink node to the target sink node, and sends response information not permitting the sensor to be accessed under the corresponding sink node to other sink nodes in the plurality of sink nodes. The communication quality and the transmission efficiency of the Internet of things of the power transmission and transformation equipment are improved.
Description
Technical Field
The embodiment of the disclosure relates to the field of internet of things of power transmission and transformation equipment, in particular to a method and a device for accessing a sensor of the internet of things of the power transmission and transformation equipment and electronic equipment.
Background
For the power system, the power transmission and transformation equipment related to electricity is interconnected and communicated, so that reliable interconnection and communication of power and information are realized, and the Internet of things of the power transmission and transformation equipment is formed. The power transmission and transformation equipment internet of things comprises an access node, a sink node and a sensor. The access node refers to a communication master device in a sensing layer of the Internet of things of the power transmission and transformation device, and has the functions of edge calculation, ad hoc network and terminal access. The sink node refers to communication relay equipment in a sensing layer of the Internet of things of power transmission and transformation equipment, and has the functions of ad hoc network and terminal access. The sensor, namely the sensing terminal refers to the terminal equipment in the sensing layer of the internet of things of the power transmission and transformation equipment, can sense the running state of the power transmission and transformation equipment, and is connected to the sink node in a wireless or wired mode. When the existing sensor is registered, after the sink node receives data sent by a certain sensor for the first time, the sink node applies for registering the sensor as a slave node of the sink node to the access node; if the access node is not allowed, the subsequent data of the sensor is not reported any more in a certain time.
However, the inventors found that when sensor registration is performed in the above manner, there are often the following technical problems:
first, there are a plurality of sink nodes that receive data sent by a certain sensor and apply for the access node to register the sensor as its own slave node. In this case, the access node generally controls which signal is received first, i.e. allows the closest sink node to register the sensor as its own slave node, while the other sink nodes are not allowed to register the sensor as its own slave node. However, when the signal quality of the sink node closest to the sensor is poor, registering the sensor under the sink node closest to the sensor can affect the subsequent communication quality and transmission efficiency;
secondly, the existing sensor access method cannot realize targeted and differentiated access for different types of sensors;
third, when a sink node fails, the communication of a plurality of sensors subordinate to the sink node is affected, and the existing method cannot provide an effective failure solution.
Disclosure of Invention
The disclosure is in part intended to introduce concepts in a simplified form that are further described below in the detailed description. The disclosure is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
Some embodiments of the present disclosure provide a method and apparatus for accessing an internet of things sensor of a power transmission and transformation device, and an electronic device, so as to solve one or more of the technical problems mentioned in the background section above.
In a first aspect, some embodiments of the present disclosure provide a method for accessing a sensor of an internet of things of power transmission and transformation equipment, which is applied to the internet of things of power transmission and transformation equipment, where the internet of things of power transmission and transformation equipment includes an access node, a sink node and a sensor, the method includes: the method comprises the steps that a sensor to be accessed searches a plurality of sink nodes supporting access, data are respectively sent to the sink nodes, and the sink nodes are registered under a target access node; for each sink node in the plurality of sink nodes, sending a registration application to the target access node in response to receiving data sent by the sensor to be accessed, so as to register the sensor to be accessed as a slave node of the target access node, wherein the registration application comprises the signal intensity of the corresponding sink node; the target access node determines a target sink node according to the signal intensity and the route progression of each sink node in the plurality of sink nodes, sends response information representing that the sensor to be accessed is allowed to be registered under the target sink node to the target sink node, and sends response information not allowing the sensor to be accessed to be registered under the corresponding sink node to other sink nodes in the plurality of sink nodes, and the route progression represents the hop count between the sink node and the target access node.
In a second aspect, some embodiments of the present disclosure provide an internet of things sensor access device for a power transmission and transformation apparatus, where the device includes: the sending unit is configured to search a plurality of sink nodes supporting access by the sensor to be accessed, respectively send data to the plurality of sink nodes, and the plurality of sink nodes are registered under the target access node; a registration unit configured to, for each of the plurality of sink nodes, send a registration application to the target access node in response to receiving the data sent by the sensor to be accessed, so as to register the sensor to be accessed as a slave node of the target access node, the registration application including the signal strength of the corresponding sink node; the target sink node determining unit is configured to determine a target sink node according to the signal intensity and the route progression of each sink node in the plurality of sink nodes, send response information representing permission to register the sensor to be accessed under the target sink node to the target sink node, and send response information not permitting registration of the sensor to be accessed under the corresponding sink node to other sink nodes in the plurality of sink nodes, wherein the route progression represents the hop count between the sink node and the target access node.
In a third aspect, some embodiments of the present disclosure provide an electronic device comprising: one or more processors; a storage device having one or more programs stored thereon, which when executed by one or more processors causes the one or more processors to implement the method described in any of the implementations of the first aspect above.
In a fourth aspect, some embodiments of the present disclosure provide a computer readable medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the method described in any of the implementations of the first aspect above.
The above embodiments of the present disclosure have the following advantageous effects: the sensor access method is provided, so that the communication quality and the transmission efficiency of the Internet of things of the power transmission and transformation equipment are improved. Specifically, in the sensor access process, the signal intensity and the route progression of the sink node are comprehensively considered, so that the route progression is reduced to the maximum extent while the signal intensity is ensured, and the transmission efficiency is improved.
Drawings
The above and other features, advantages, and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. The same or similar reference numbers will be used throughout the drawings to refer to the same or like elements. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.
FIG. 1 illustrates an exemplary partial schematic diagram of an Internet of things power transmission and transformation device;
fig. 2 is a flow chart of some embodiments of a power transmission and transformation device internet of things sensor access method according to the present disclosure;
fig. 3 is a schematic structural view of some embodiments of an internet of things sensor access device for power transmission and transformation equipment according to the present disclosure;
fig. 4 is a schematic structural diagram of an electronic device suitable for use in implementing some embodiments of the present disclosure.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.
It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.
The names of messages or information interacted between the various devices in the embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, an exemplary partial schematic diagram of an internet of things power transmission and transformation device is shown. The Internet of things of the power transmission and transformation equipment comprises an access node 101, sink nodes 102-104 and sensors 105-109. As shown, the connections between nodes or sensors are used to represent the connection between nodes or terminals. The access node has the connection relation between all subordinate sink nodes and sensors, namely a downlink tree-shaped routing table. Each sink node stores a node routing table between nodes and a sensor routing table subordinate to the sink node, and downlink data sent by an access node is addressed to a sink node at the last stage (corresponding to a destination sensor) through the node routing table; and then the sink node transmits the sensor route list to the corresponding sensor. The sensor communication part may be omitted if it is data to the sink node.
With continued reference to fig. 2, a flow 200 of some embodiments of a power transmission and transformation device internet of things sensor access method according to the present disclosure is shown. The method for accessing the sensor of the internet of things of the power transmission and transformation equipment comprises the following steps:
step 201, a sensor to be accessed searches for a plurality of sink nodes supporting access, and sends data to the plurality of sink nodes respectively, wherein the plurality of sink nodes are registered under a target access node.
In some embodiments, the access-enabled sink nodes may broadcast under the scheduling of the access node, so that the sensor to be accessed may search for multiple access-enabled sink nodes that are registered under the target access node. That is, the plurality of sink nodes are subordinate nodes of the target access node. On this basis, the sensor to be accessed can send data (packet) to each sink node, wherein the data sent by the sensor to be accessed includes but is not limited to: sensor type, sensor power consumption, sensor identification, etc. For example, as shown in fig. 1, taking a sensor to be accessed as a sensor 109, it may be searched that a plurality of sink nodes supporting access include sink nodes 102, 103 and 104. Taking a sensor to be accessed as a sensor 106 as an example, a plurality of sink nodes supporting access can be searched to include the sink node 104, and the sink nodes 102 and 103 cannot be searched due to a longer distance.
Step 202, for each sink node in the plurality of sink nodes, in response to receiving the data sent by the sensor to be accessed, sending a registration application to the target access node to register the sensor to be accessed as a slave node of the target access node, where the registration application includes the signal strength of the corresponding sink node.
In some embodiments, each sink node may send a registration application to the target access node when receiving the data reported by the sensor for the first time, so as to register the sensor to be accessed as its own slave node. The registration application includes the signal strength of the corresponding sink node. The sink node can calculate the signal strength of the data packet and serve as the signal strength of the sink node when receiving the data reported by the sensor. Optionally, the registration application further includes a sensor type, a channel number, and the like.
In step 203, the target access node determines a target sink node according to the signal intensity and the route progression of each sink node in the plurality of sink nodes, sends response information characterizing that the sensor to be accessed is allowed to be registered under the target sink node to the target sink node, and sends response information that the sensor to be accessed is not allowed to be registered under the corresponding sink node to other sink nodes in the plurality of sink nodes, and the route progression represents the hop count between the sink node and the target access node.
In some embodiments, continuing to take the sensor to be accessed in fig. 1 as the sensor 109, the plurality of sink nodes includes sink nodes 102, 103, and 104. So that the sink nodes 102, 103 and 104 will send registration applications to the target access node, respectively. And the target access node 101 sends response information characterizing that the sensor 109 to be accessed is allowed to be registered under the target sink node 102 to the target sink node 102, and sends response information that the sensor to be accessed is not allowed to be registered under the corresponding sink node to other sink nodes (i.e., sink nodes 103 and 104) in the plurality of sink nodes, respectively. Specifically, response information that does not allow the sensor to be accessed to be registered under the sink node 103 is sent to the sink node 103, and response information that does not allow the sensor to be accessed to be registered under the sink node 104 is sent to the sink node 104.
In some embodiments, the target access node may receive a registration request sent by each sink node separately. On the basis, the target access node can determine the target sink node from a plurality of sink nodes according to the signal intensity and the route level of each sink node. The target access node has the connection relation between all the subordinate sink nodes and the sensor, so that the routing level of each subordinate sink node can be determined.
For example, the target sink node may be determined by:
step one, for a plurality of sink nodes, eliminating the sink nodes with the signal strength lower than the preset signal strength lower limit value to obtain a first candidate sink node group.
And step two, selecting the sink node with the minimum route progression from the first candidate sink node group as a target sink node.
In another example, the registration application further includes the number of corresponding existing subordinate nodes of the sink node, and at this time, the target sink node may be determined according to the signal strength, the routing level and the number of existing subordinate nodes of each of the plurality of sink nodes, and specifically includes the following steps:
step one, for a plurality of sink nodes, eliminating the sink nodes with the signal strength lower than the preset signal strength lower limit value to obtain a preselected sink node group;
step two, eliminating sink nodes with the number of existing slave nodes in the preselected sink node group being greater than a preset node threshold value, and obtaining a second candidate sink node group;
and thirdly, selecting the sink node with the minimum route progression from the second candidate sink node group as a target sink node.
Optionally, for each sink node in the second candidate sink node group, determining a node score corresponding to each sink node according to the number of existing slave nodes, the route progression and the signal strength of each sink node; and determining the sink node with the highest node score as the target sink node.
Specifically, a scoring table may be pre-constructed, where the scoring table includes scores corresponding to different numbers of subordinate nodes, scores corresponding to different routing levels, and scores corresponding to different signal strength intervals. On the basis, the scores corresponding to the number of the existing subordinate nodes, the route progression and the signal strength of each sink node can be queried through querying a scoring table. It can be understood that, for signal strength, the score is higher the greater the value, the lower the score is the greater the value for the number of routing stages, and the lower the score is the greater the value for the number of existing slave nodes.
The number of the existing slave nodes and the scores corresponding to the routing progression can be directly queried, the score corresponding to the signal strength can firstly determine which signal strength area the signal strength is in, and then the score corresponding to the signal strength area where the signal strength is located is used as the score corresponding to the signal strength. On the basis, the three scores are weighted according to preset weights, and node scores corresponding to all the sink nodes are obtained. And finally, determining the sink node with the highest node score as the target sink node.
In these optional implementation manners, by introducing the number of the existing subordinate nodes and excluding the convergent nodes with the number of the existing subordinate nodes being greater than the preset node threshold, the convergent nodes with the excessive number of the existing subordinate nodes can be prevented from being accessed, so that the influence on the communication quality caused by the excessive number of the subordinate nodes is avoided, and the stability and the communication quality of the communication system are improved.
According to the method provided by some embodiments of the present disclosure, in the sensor access process, the signal strength and the routing progression of the sink node are comprehensively considered, so that the routing progression is reduced to the maximum extent while the signal strength is ensured, and the transmission efficiency is improved.
In some alternative implementations of some embodiments, although some of the embodiments described above have achieved the technical effects already described. However, in practice, there is still a second technical problem described in the background section, namely that "the existing sensor access method cannot achieve targeted and differentiated access for different types of sensors". The reason is that: the requirements of different types of sensors for communication reliability are different, for example, a micro-power sensor is used as a unidirectional reporting sensor in the internet of things of power transmission and transformation equipment, and can receive certain service data packet loss. However, for a low-power consumption sensor, as a bidirectional controllable sensor in the internet of things of power transmission and transformation equipment, the tolerance to service data packet loss is obviously lower than that of a micropower sensor. Based on this, in some embodiments of the present disclosure, the registration application also includes a sensor type; and determining a target sink node according to the signal intensity, the route progression and the number of the existing slave nodes of each sink node in the plurality of sink nodes, comprising: and determining the target sink node according to the signal intensity, the route progression, the number of the existing slave nodes and the sensor types of each sink node in the plurality of sink nodes. The method specifically comprises the following steps:
step one, eliminating sink nodes with signal strength lower than a preset signal strength lower limit value for a plurality of sink nodes to obtain a preselected sink node group.
And step two, eliminating sink nodes with the number of existing slave nodes in the preselected sink node group being greater than a preset node threshold value, and obtaining a second candidate sink node group.
And thirdly, for each sink node in the second candidate sink node group, determining the scores corresponding to the number of the existing slave nodes, the routing progression and the signal strength of each sink node respectively, and determining the weighted sum of the scores corresponding to the number of the existing slave nodes, the routing progression and the signal strength of each sink node respectively as the node score corresponding to each sink node, wherein the weights corresponding to the number of the existing slave nodes, the routing progression and the signal strength of each sink node are determined according to the type of the sensor.
Wherein different sensor types may correspond to different weights. The specific weight corresponding to each type of sensor can be preset and stored in the target access node, so that the target access node can analyze the sensor type from the registration application, inquire the corresponding weight according to the sensor type, and further determine the node score corresponding to each sink node. For the micro-power sensor, the weight corresponding to the signal strength is smaller (for example, 0.3), and the weight corresponding to the routing level is larger (for example, 0.5), because the micro-power sensor can accept a certain service data packet loss, the weight corresponding to the routing level can be improved as much as possible, and the weight corresponding to the signal strength is reduced, thereby improving the transmission efficiency. For the low-power consumption sensor, the weight corresponding to the signal intensity is larger (for example, 0.5), and the weight corresponding to the routing level is smaller (for example, 0.3), so that the signal intensity can be ensured to the maximum extent, and the packet loss of service data can be avoided to the maximum extent. In the above example, the weight corresponding to the number of existing slave nodes is 0.2.
And step four, determining the sink node with the highest node score as a target sink node.
According to the method provided by some embodiments of the present disclosure, by including sensor types in the registration application and configuring different weights for different sensor types, dynamic weight configuration is achieved, requirements of communication reliability of different types of sensors are met, and targeted and differentiated access is achieved for different types of sensors.
In some optional implementations of some embodiments, in order to solve the third technical problem described in the background section, that is, "when a sink node fails, communications of a plurality of sensors subordinate to the sink node may be affected, and the existing methods cannot provide an effective failure resolution method", some embodiments of the present disclosure further include the following steps:
selecting at least one sink node with the distance from the target sink node in the second candidate sink node group being smaller than a preset distance threshold value to obtain a third candidate sink node group;
step two, determining the sink node with the smallest node scoring difference value with the target sink node in the third candidate sink node group as a backup node of the target sink node;
step three, the sensor routing table stored in the target sink node is sent to the backup node; step four, backup information is sent to the access node, wherein the backup information represents the corresponding relation between the target sink node and the backup node, namely the backup relation;
and fifthly, when the target sink node fails, the access node schedules the backup node to broadcast, and when receiving a registration application sent by the backup node, sends response information representing permission to register the sensor under the backup node to the backup node, and sends response information which does not allow to register the sensor under the corresponding sink node to other sink nodes, so that each sensor subordinate to the target sink node is accessed to the backup node.
According to the method provided by some embodiments of the present disclosure, by pre-configuring the backup node and pre-storing the backup information in the access node, when the target sink node fails, the access node does not need to judge any more, and can directly access the backup node, so that the failure removal efficiency is improved, and the influence caused by the failure is reduced.
With further reference to fig. 3, as an implementation of the method shown in the foregoing drawings, the present disclosure provides some embodiments of an internet of things sensor access device for a power transmission and transformation apparatus, where the embodiments of the device correspond to those shown in fig. 2, and the device may be specifically applied to various electronic devices.
As shown in fig. 3, the web page generating apparatus 300 of some embodiments includes: a transmitting unit 301 configured to search for a plurality of sink nodes supporting access by the sensor to be accessed, and transmit data to the plurality of sink nodes, respectively, the plurality of sink nodes being registered under the target access node; a registration unit 302, configured to, for each of the plurality of sink nodes, send a registration application to the target access node in response to receiving the data sent by the sensor to be accessed, so as to register the sensor to be accessed as a slave node of the target access node, where the registration application includes a signal strength and a routing level of the corresponding sink node, and the routing level represents a hop count between the sink node and the target access node; the target sink node determining unit 303 is configured to determine a target sink node according to the signal intensity and the route progression of each sink node in the plurality of sink nodes, send response information characterizing that the sensor to be accessed is allowed to be registered under the target sink node to the target sink node, and send response information that the sensor to be accessed is not allowed to be registered under the corresponding sink node to other sink nodes in the plurality of sink nodes.
It will be appreciated that the elements described in the apparatus 300 correspond to the various steps in the method described with reference to fig. 2. Thus, the operations, features and resulting benefits described above with respect to the method are equally applicable to the apparatus 300 and the units contained therein, and are not described in detail herein.
Referring now to fig. 4, a schematic diagram of an electronic device 400 suitable for use in implementing some embodiments of the present disclosure is shown. The electronic device shown in fig. 4 is merely an example and should not impose any limitations on the functionality and scope of use of embodiments of the present disclosure.
As shown in fig. 4, the electronic device 400 may include a processing means (e.g., a central processing unit, a graphics processor, etc.) 401, which may perform various suitable actions and processes according to a program stored in a Read Only Memory (ROM) 402 or a program loaded from a storage means 408 into a Random Access Memory (RAM) 403. In the RAM 403, various programs and data necessary for the operation of the electronic device 400 are also stored. The processing device 401, the ROM 402, and the RAM 403 are connected to each other by a bus 404. An input/output (I/O) interface 405 is also connected to bus 404.
In general, the following devices may be connected to the I/O interface 405: input devices 406 including, for example, a touch screen, touchpad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; an output device 407 including, for example, a Liquid Crystal Display (LCD), a speaker, a vibrator, and the like; storage 408 including, for example, magnetic tape, hard disk, etc.; and a communication device 409. The communication means 409 may allow the electronic device 400 to communicate with other devices wirelessly or by wire to exchange data. While fig. 4 shows an electronic device 400 having various means, it is to be understood that not all of the illustrated means are required to be implemented or provided. More or fewer devices may be implemented or provided instead. Each block shown in fig. 4 may represent one device or a plurality of devices as needed.
In particular, according to some embodiments of the present disclosure, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, some embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flow chart. In such embodiments, the computer program may be downloaded and installed from a network via communications device 409, or from storage 408, or from ROM 402. The above-described functions defined in the methods of some embodiments of the present disclosure are performed when the computer program is executed by the processing device 401.
It should be noted that, the computer readable medium described in some embodiments of the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In some embodiments of the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In some embodiments of the present disclosure, however, the computer-readable signal medium may comprise a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.
In some implementations, the clients, servers may communicate using any currently known or future developed network protocol, such as HTTP (HyperText Transfer Protocol ), and may be interconnected with any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), the internet (e.g., the internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future developed networks.
The computer readable medium may be contained in the electronic device; or may exist alone without being incorporated into the electronic device.
Computer program code for carrying out operations for some embodiments of the present disclosure may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in some embodiments of the present disclosure may be implemented by means of software, or may be implemented by means of hardware. The described units may also be provided in a processor.
The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the invention. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.
Claims (9)
1. The utility model provides a power transmission and transformation equipment thing networking sensor access method is applied to power transmission and transformation equipment thing networking, power transmission and transformation equipment thing networking includes access node, sink node and sensor, the method includes:
the method comprises the steps that a sensor to be accessed searches a plurality of sink nodes supporting access, and respectively sends data to the sink nodes, wherein the sink nodes are registered under a target access node;
for each sink node in the plurality of sink nodes, sending a registration application to the target access node in response to receiving the data sent by the sensor to be accessed, so as to register the sensor to be accessed as a slave node of the target access node, wherein the registration application comprises the signal strength of the corresponding sink node;
the target access node determines a target sink node according to the signal intensity and the route progression of each sink node in the plurality of sink nodes, sends response information representing permission to register the sensor to be accessed under the target sink node to the target sink node, and sends response information not allowing to register the sensor to be accessed under the corresponding sink node to other sink nodes in the plurality of sink nodes, wherein the route progression represents the hop count between the sink node and the target access node.
2. The method of claim 1, wherein the determining the target sink node according to the signal strength and the number of routing stages of each of the plurality of sink nodes comprises:
for the plurality of sink nodes, eliminating the sink nodes with the signal strength lower than the preset signal strength lower limit value to obtain a first candidate sink node group;
and selecting the sink node with the minimum route level from the first candidate sink node group as a target sink node.
3. The method according to claim 1, wherein the registration application further includes the number of existing slave nodes of the corresponding sink node; and
the determining a target sink node according to the signal intensity and the route level of each sink node in the plurality of sink nodes includes:
and determining a target sink node according to the signal intensity, the route progression and the number of the existing slave nodes of each sink node in the plurality of sink nodes.
4. The method of claim 3, wherein the determining the target sink node according to the signal strength, the number of routing stages, and the number of existing slave nodes for each of the plurality of sink nodes comprises:
for the plurality of sink nodes, eliminating the sink nodes with the signal strength lower than the preset signal strength lower limit value to obtain a preselected sink node group;
eliminating sink nodes with the number of existing slave nodes in the preselected sink node group being greater than a preset node threshold value to obtain a second candidate sink node group;
and selecting the sink node with the minimum route level from the second candidate sink node group as a target sink node.
5. The method of claim 3, wherein the determining the target sink node according to the signal strength, the number of routing stages, and the number of existing slave nodes for each of the plurality of sink nodes comprises:
for the plurality of sink nodes, eliminating the sink nodes with the signal strength lower than the preset signal strength lower limit value to obtain a preselected sink node group;
eliminating sink nodes with the number of existing slave nodes in the preselected sink node group being greater than a preset node threshold value to obtain a second candidate sink node group;
for each sink node in the second candidate sink node group, determining a node score corresponding to each sink node according to the number of existing slave nodes of each sink node, the route progression and the signal strength;
and determining the sink node with the highest node score as the target sink node.
6. A method according to claim 3, wherein the registration application further includes a sensor type; and
the determining a target sink node according to the signal strength, the route progression and the number of existing slave nodes of each sink node in the plurality of sink nodes includes:
and determining a target sink node according to the signal intensity, the route progression, the number of the existing slave nodes and the sensor types of each sink node in the plurality of sink nodes.
7. The method of claim 6, wherein the determining the target sink node based on the signal strength, the number of routing stages, the number of existing slave nodes, and the sensor type of each of the plurality of sink nodes comprises:
for the plurality of sink nodes, eliminating the sink nodes with the signal strength lower than the preset signal strength lower limit value to obtain a preselected sink node group;
eliminating sink nodes with the number of existing slave nodes in the preselected sink node group being greater than a preset node threshold value to obtain a second candidate sink node group;
for each sink node in the second candidate sink node group, determining the number of the existing slave nodes of each sink node, the number of the route progression and the score corresponding to the signal intensity respectively, and determining the weighted sum of the number of the existing slave nodes of each sink node, the route progression and the score corresponding to the signal intensity respectively as the node score corresponding to each sink node, wherein the number of the existing slave nodes of each sink node, the weight corresponding to the route progression and the weight corresponding to the signal intensity respectively are determined according to the sensor type;
and determining the sink node with the highest node score as the target sink node.
8. An internet of things sensor access device for power transmission and transformation equipment, the device comprising:
the sending unit is configured to search a plurality of sink nodes supporting access by the sensor to be accessed, and respectively send data to the plurality of sink nodes, wherein the plurality of sink nodes are registered under the target access node;
a registration unit configured to, for each of the plurality of sink nodes, send a registration application to the target access node in response to receiving the data sent by the sensor to be accessed, so as to register the sensor to be accessed as a slave node of the target access node, where the registration application includes signal strength of the corresponding sink node;
the target sink node determining unit is configured to determine a target sink node according to the signal intensity and the route progression of each sink node in the plurality of sink nodes, send response information representing permission to register the sensor to be accessed under the target sink node to the target sink node, and send response information not permitting to register the sensor to be accessed under the corresponding sink node to other sink nodes in the plurality of sink nodes, wherein the route progression represents the hop count between the sink node and the target access node.
9. An electronic device, comprising:
one or more processors;
a storage device having one or more programs stored thereon,
when executed by the one or more processors, causes the one or more processors to implement the method of any of claims 1-7.
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