Terminal node equipment, relay control method, device and wireless communication network

Abstract

The present invention discloses a terminal node device, a relay control method, an apparatus and a wireless communication network, wherein the terminal node device comprises: a communication module for performing a communication function under normal working conditions; an information relay module for relaying information for an abnormal terminal node device that cannot communicate with a main station. The present invention solves the problem in the prior art that a main station and a terminal node that cannot communicate directly need to rely on a repeater, improves communication efficiency and success rate, and reduces system costs.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a terminal node device, a relay control method, an apparatus and a wireless communication network. Background Art

[0002] Usually in wireless communication networking, there are many terminal nodes, which are scattered and highly random. The communication distance of the master station is limited. In order to reduce engineering costs, the master station is usually arranged in a location that can cover the most terminal nodes. For terminal nodes outside the communication range or in signal blind spots, normal communication can be ensured by increasing the use of repeaters or even increasing the use of master stations.

[0003] However, when there are multiple discrete terminal nodes that cannot communicate, it is possible that a repeater needs to be installed for each node, which doubles the engineering cost. In another case, when the repeater is damaged, the terminal nodes that rely on the repeater for communication will all communicate abnormally, resulting in communication compatibility and low communication efficiency.

[0004] With regard to the problem in the related art that a master station and terminal nodes that cannot communicate directly need to rely on repeaters, no effective solution has been proposed yet. Summary of the invention

[0005] The present invention provides a terminal node device, a relay control method, an apparatus and a wireless communication network, so as to at least solve the problem in the prior art that a main station and a terminal node that cannot directly communicate need to rely on a repeater.

[0006] To solve the above technical problems, according to one aspect of an embodiment of the present invention, a terminal node device is provided, including: a communication module for performing communication functions under normal working conditions; and an information relay module for relaying information for abnormal terminal node devices that cannot communicate with a main station.

[0007] Furthermore, the abnormal terminal node device includes at least one of the following: a terminal node located outside the communication range of the master station, and a terminal node located within the communication range of the master station but unable to communicate with the master station.

[0008] Furthermore, the information relay module includes: a relay receiving unit for receiving a relay request sent by the master station; wherein the relay request carries information of the abnormal terminal node device; and a forwarding unit for forwarding the relay request to the abnormal terminal node device.

[0009] Furthermore, the information relay module also includes: a response receiving unit, used to receive response information of the abnormal terminal node device; and a feedback unit, used to feed back the response information to the master station.

[0010] According to another aspect of an embodiment of the present invention, a relay control method is provided, including: determining an abnormal terminal node that cannot communicate with a main station; issuing a relay request to a terminal node within the communication range of the main station, determining a terminal node that can perform relay communication with the abnormal terminal node as a relay node for the abnormal terminal node; and establishing a communication connection with the abnormal terminal node via the relay node.

[0011] Furthermore, the abnormal terminal node that cannot communicate with the master station includes at least one of the following: a terminal node located outside the communication range of the master station, and a terminal node located within the communication range of the master station but unable to communicate with the master station.

[0012] Furthermore, determining a terminal node that can perform relay communication with an abnormal terminal node includes: receiving feedback information sent by one or more terminal nodes; wherein the feedback information is generated after the terminal node receives a relay request and forwards it to the abnormal terminal node, and then receives a response from the abnormal terminal node; if there is one terminal node, determining the terminal node as a terminal node that can perform relay communication with the abnormal terminal node; if there are multiple terminal nodes, selecting one terminal node from the multiple terminal nodes based on preset rules, and determining the terminal node as a terminal node that can perform relay communication with the abnormal terminal node.

[0013] Furthermore, the preset rule is the response speed of the terminal node in reporting feedback information, or the distance between the transit terminal node and the abnormal terminal node.

[0014] Furthermore, based on preset rules, a terminal node is selected from multiple terminal nodes, and the terminal node is determined as a terminal node that can relay communication with the abnormal terminal node, including: comparing the response speed of multiple terminal nodes in reporting feedback information, and determining the terminal node with the fastest response speed as the relay node; or, comparing the distances between multiple terminal nodes and the abnormal terminal node, and determining the terminal node with the shortest distance to the abnormal terminal node as the relay node.

[0015] Furthermore, a communication connection is established with the abnormal terminal node through the relay node, including: recording the communication path with the abnormal terminal node; wherein the communication path includes the main station, the relay node, and the abnormal terminal node, the main station sends the communication information with the abnormal terminal node to the relay node, and the relay node forwards the communication information to the abnormal terminal node after receiving the communication information to establish a communication connection with the abnormal terminal node.

[0016] According to another aspect of an embodiment of the present invention, a relay control device is provided, including: an abnormal terminal node determination module, used to determine abnormal terminal nodes that cannot communicate with a main station; a relay node determination module, used to control the main station to send relay requests to all terminal nodes, and determine terminal nodes that can perform relay communication with abnormal terminal nodes as relay nodes for abnormal terminal nodes; a communication module, used to realize a communication connection between the main station and the abnormal terminal nodes through the relay nodes.

[0017] According to another aspect of an embodiment of the present invention, a wireless communication network is provided, including the terminal node device as described above.

[0018] According to another aspect of an embodiment of the present invention, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned relay control method when executing the program.

[0019] According to another aspect of an embodiment of the present invention, there is provided a storage medium containing computer executable instructions, and when the computer executable instructions are executed by a computer processor, they are used to execute the relay control method as described above.

[0020] In the present invention, a relay control method is provided. By applying this method, nodes around terminal nodes that cannot communicate normally can be selected for information relay, which can increase the actual communication range, reduce the use of master station equipment and repeaters, do not need to add additional equipment, and reduce the system installation and maintenance costs. At the same time, the problem that other nodes cannot communicate when the repeater is destroyed is avoided. In general, the communication efficiency and success rate are greatly improved, and the cost of the system is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an optional structural block diagram of a terminal node device according to an embodiment of the present invention;

[0022] Figure 2 is an optional flow chart of a relay control method according to an embodiment of the present invention;

[0023] Figure 3 is an optional structural diagram of a wireless communication network according to an embodiment of the present invention; and

[0024] Figure 4 It is an optional structural block diagram of a relay control device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0026] Example 1

[0027] In a preferred embodiment 1 of the present invention, a terminal node device is provided, which can be directly applied to various wireless communication networks, such as LoRa wireless communication networks. Specifically, Figure 1 An optional structural block diagram of the device is shown, such as Figure 1 As shown, the device includes:

[0028] The communication module 102 is used to perform communication functions under normal working conditions;

[0029] The information relay module 104 is connected to the communication module 102 and is used to relay information for abnormal terminal node devices that cannot communicate with the master station.

[0030] In the above implementation, a terminal node device is provided, which can relay information for nodes that cannot communicate normally, thereby increasing the actual communication range, reducing the use of master station equipment and repeaters, and not requiring additional equipment, thereby reducing the system installation and maintenance costs. At the same time, the problem of other nodes being unable to communicate when the repeater is damaged is avoided. In general, the communication efficiency and success rate are greatly improved, and the cost of the system is reduced.

[0031] Furthermore, the abnormal terminal node device includes at least one of the following: a terminal node located outside the communication range of the master station, and a terminal node located within the communication range of the master station but unable to communicate with the master station.

[0032] In a preferred embodiment of the present invention, the information relay module includes: a relay receiving unit for receiving a relay request sent by a master station; wherein the relay request carries information of an abnormal terminal node device; and a forwarding unit for forwarding the relay request to the abnormal terminal node device.

[0033] The information relay module also includes: a response receiving unit, which is used to receive the response information of the abnormal terminal node device; and a feedback unit, which is used to feed back the response information to the main station.

[0034] Example 2

[0035] In a preferred embodiment 2 of the present invention, a relay control method is provided, which can be directly applied to various wireless communication networks, such as LoRa wireless communication networks. Specifically, Figure 2 An optional flow chart of the method is shown as follows: Figure 2 As shown, the method includes the following steps S202-S206:

[0036] S202: Determine an abnormal terminal node that cannot communicate with the master station;

[0037] S204: Sending a relay request to a terminal node within the communication range of the master station, and determining a terminal node that can perform relay communication with the abnormal terminal node as a relay node for the abnormal terminal node;

[0038] S206: Establish a communication connection with the abnormal terminal node through the relay node.

[0039] In the above implementation, a relay control method is provided. By applying this method, nodes around the terminal node that cannot communicate normally can be selected for information relay, which can increase the actual communication range, reduce the use of master station equipment and repeaters, and do not need to add additional equipment, thereby reducing the system installation and maintenance costs. At the same time, the problem of other nodes being unable to communicate when the repeater is destroyed is avoided. In general, the communication efficiency and success rate are greatly improved, and the cost of the system is reduced.

[0040] In a preferred embodiment of the present invention, the abnormal terminal node that cannot communicate with the main station includes at least one of the following: a terminal node located outside the communication range of the main station, and a terminal node located within the communication range of the main station but unable to communicate with the main station.

[0041] In another preferred embodiment of the present invention, determining a terminal node that can perform relay communication with an abnormal terminal node includes: receiving feedback information sent by one or more terminal nodes; wherein the feedback information is generated after the terminal node receives a relay request and forwards it to the abnormal terminal node, and then receives a response from the abnormal terminal node; if there is one terminal node, determining the terminal node as a terminal node that can perform relay communication with the abnormal terminal node; if there are multiple terminal nodes, selecting one terminal node from the multiple terminal nodes based on preset rules, and determining the terminal node as a terminal node that can perform relay communication with the abnormal terminal node.

[0042] Furthermore, the preset rule is the response speed of the terminal node reporting feedback information, or the distance between the relay terminal node and the abnormal terminal node. Based on the preset rule, a terminal node is selected from multiple terminal nodes, and the terminal node is determined as a terminal node that can relay communication with the abnormal terminal node, including: comparing the response speed of multiple terminal nodes reporting feedback information, and determining the terminal node with the fastest response speed as the relay node; or comparing the distances between multiple terminal nodes and the abnormal terminal node, and determining the terminal node with the shortest distance to the abnormal terminal node as the relay node.

[0043] In another preferred embodiment of the present invention, a communication connection is established with an abnormal terminal node through a relay node, including: recording a communication path with the abnormal terminal node; wherein the communication path includes a main station, a relay node, and an abnormal terminal node, the main station sends communication information with the abnormal terminal node to the relay node, and the relay node forwards the communication information to the abnormal terminal node after receiving the communication information to establish a communication connection with the abnormal terminal node.

[0044] In a preferred embodiment 2 of the present invention, another optional relay control method is provided. Specifically, the method includes:

[0045] Figure 3 A common communication network is provided, in which there are multiple terminal nodes and a main station. Information is sent from the main station and transmitted to normal communication nodes within the communication range via the wireless network. However, among the terminal nodes, there is a problem that remote terminal nodes or signal blind area nodes cannot communicate, such as terminal node 3, which is beyond the communication range of the main station and cannot communicate directly with the main station, and terminal node 2, which is within the communication range of the main station but cannot communicate directly with the main station. For the above-mentioned terminal nodes 2 and 3, the present invention adopts the following method for communication relay:

[0046] For situations where remote terminal nodes cannot communicate:

[0047] Terminal node 3 is beyond the communication range of the master station and cannot communicate directly with the master station. There are at least one or more terminal nodes, such as terminal nodes 1 and 2, that can communicate normally with the host and can ensure normal communication with terminal node 3.

[0048] When the master station finds that it cannot communicate with terminal node 3, it initiates a relay request with terminal node 3 as the target. All nodes within the communication range of the master station will receive the request and forward the communication. When the forwarded data reaches terminal node 3, it will respond to the relay request. The terminal node that receives the response information will report it to the host, which will record the communication path. After that, the communication path between the host and terminal node 3 is: host <--> relay node <--> terminal node 3.

[0049] For the situation where nodes in signal blind areas cannot communicate:

[0050] Terminal node 2 is within the communication range of the master station, but cannot communicate directly with the master station. There are at least one or more terminal nodes, such as terminal node 1, which can communicate normally with the host and can ensure normal communication with terminal node 2.

[0051] When the master station finds that it cannot communicate with terminal node 2, it initiates a relay request with terminal node 2 as the target. All nodes within the communication range of the master station will receive the request and forward the communication. When the forwarded data reaches terminal node 2, it will respond to the relay request. The terminal node that receives the response information will report it to the host, which will record the communication path. After that, the communication path between the host and terminal node 2 is: host <--> relay node <--> terminal node 2.

[0052] In the above implementation, the terminal node can be selected as a repeater to relay information while working normally. When the relay operation is not required, it acts as a normal terminal node. Therefore, the present invention reduces the use of master station equipment and repeaters, does not need to add additional equipment, and the terminal node can be selected for emergency relaying. Under normal conditions, it is a general terminal device, which reduces the system installation and maintenance costs. It avoids the problem that other nodes cannot communicate when the repeater is destroyed. In general, the communication efficiency and success rate are greatly improved, and the cost of the system is reduced.

[0053] Example 3

[0054] Based on the relay control method provided in the above embodiment 2, a relay control device is further provided in a preferred embodiment 3 of the present invention. Specifically, Figure 4 An optional structural block diagram of the device is shown, such as Figure 4 As shown, the device comprises:

[0055] The abnormal terminal node determination module 402 is used to determine the abnormal terminal node that cannot communicate with the master station;

[0056] The relay node determination module 404 is connected to the abnormal terminal node determination module 402, and is used to control the master station to send a relay request to all terminal nodes, and determine the terminal node that can perform relay communication with the abnormal terminal node as the relay node of the abnormal terminal node;

[0057] The communication module 406 is connected to the relay node determination module 404 and is used to realize the communication connection between the master station and the abnormal terminal node through the relay node.

[0058] In the above embodiment, a relay control device is provided. By applying the device, nodes around the terminal node that cannot communicate normally can be selected for information relay, which can increase the actual communication range, reduce the use of master station equipment and repeaters, and do not need to add additional equipment, thereby reducing the system installation and maintenance costs. At the same time, the problem of other nodes being unable to communicate when the repeater is destroyed is avoided. In general, the communication efficiency and success rate are greatly improved, and the cost of the system is reduced.

[0059] The abnormal terminal node that cannot communicate with the master station includes at least one of the following: a terminal node that is outside the communication range of the master station, and a terminal node that is within the communication range of the master station but cannot communicate with the master station.

[0060] Further, the relay node determination module 404 includes:

[0061] A receiving unit, configured to receive feedback information sent by one or more terminal nodes; wherein the feedback information is generated after the terminal node receives a relay request and forwards it to the abnormal terminal node, and receives a response from the abnormal terminal node;

[0062] A first determining unit, configured to determine the terminal node as a terminal node capable of performing relay communication with the abnormal terminal node when there is only one terminal node;

[0063] The second determining unit is used to select a terminal node from the multiple terminal nodes based on a preset rule when there are multiple terminal nodes, and determine the terminal node as a terminal node that can perform relay communication with the abnormal terminal node.

[0064] Preferably, the preset rule is the response speed of the terminal node reporting feedback information, or the distance between the relay terminal node and the abnormal terminal node. The second determination unit includes: a first comparison subunit, used to compare the response speeds of multiple terminal nodes reporting feedback information, and determine the terminal node with the fastest response speed as the relay node; or a second comparison subunit, used to compare the distances between multiple terminal nodes and the abnormal terminal node, and determine the terminal node with the shortest distance to the abnormal terminal node as the relay node.

[0065] Furthermore, the communication module 406 includes: a recording unit, used to record the communication path with the abnormal terminal node; wherein the communication path includes a main station, a relay node, and an abnormal terminal node, the main station sends the communication information with the abnormal terminal node to the relay node, and the relay node forwards the communication information to the abnormal terminal node after receiving the communication information to establish a communication connection with the abnormal terminal node.

[0066] Regarding the device in the above embodiment, the specific manner in which each unit and module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0067] Example 4

[0068] Based on the relay control device provided in the above-mentioned embodiment 3, a wireless communication network is further provided in a preferred embodiment 4 of the present invention, including the terminal node device as described above.

[0069] In the above implementation, a wireless communication network is provided, which can select nodes around the terminal node that cannot communicate normally for information relay, which can increase the actual communication range, reduce the use of master station equipment and repeaters, and do not need to add additional equipment, thereby reducing the system installation and maintenance costs. At the same time, it avoids the problem that other nodes cannot communicate when the repeater is destroyed. In general, the communication efficiency and success rate are greatly improved, and the cost of the system is reduced.

[0070] Example 5

[0071] Based on the relay control method provided in the above-mentioned embodiment 2, a computer device is also provided in a preferred embodiment 5 of the present invention, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the relay control method as described above when executing the program.

[0072] In the above implementation, a relay control method is provided. By applying this method, nodes around the terminal node that cannot communicate normally can be selected for information relay, which can increase the actual communication range, reduce the use of master station equipment and repeaters, and do not need to add additional equipment, thereby reducing the system installation and maintenance costs. At the same time, the problem of other nodes being unable to communicate when the repeater is destroyed is avoided. In general, the communication efficiency and success rate are greatly improved, and the cost of the system is reduced.

[0073] Example 6

[0074] Based on the relay control method provided in the above-mentioned embodiment 2, a storage medium containing computer executable instructions is also provided in a preferred embodiment 6 of the present invention. When the computer executable instructions are executed by a computer processor, they are used to execute the relay control method as described above.

[0075] In the above implementation, a relay control method is provided. By applying this method, nodes around the terminal node that cannot communicate normally can be selected for information relay, which can increase the actual communication range, reduce the use of master station equipment and repeaters, and do not need to add additional equipment, thereby reducing the system installation and maintenance costs. At the same time, the problem of other nodes being unable to communicate when the repeater is destroyed is avoided. In general, the communication efficiency and success rate are greatly improved, and the cost of the system is reduced.

[0076] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not invented by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0077] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A relay control method, characterized in that: include: Identify abnormal terminal nodes that cannot communicate with the master station; Sending a relay request to a terminal node within the communication range of the master station, and determining a terminal node that can perform relay communication with the abnormal terminal node as a relay node for the abnormal terminal node; Establishing a communication connection with the abnormal terminal node through the relay node; Wherein, determining a terminal node capable of performing relay communication with the abnormal terminal node includes: Receiving feedback information sent by one or more of the terminal nodes; wherein the feedback information is generated after the terminal node receives the relay request and forwards it to the abnormal terminal node, and then receives a response from the abnormal terminal node; If there is one terminal node, determining the terminal node as a terminal node capable of performing relay communication with the abnormal terminal node; If there are multiple terminal nodes, one terminal node is selected from the multiple terminal nodes based on a preset rule, and the terminal node is determined as a terminal node that can perform relay communication with the abnormal terminal node.

2. The method according to claim 1, characterized in that The abnormal terminal node includes at least one of the following: A terminal node located outside the communication range of the master station, and a terminal node located within the communication range of the master station but unable to communicate with the master station.

3. The method according to claim 1, characterized in that The preset rule is a response speed of the terminal node in reporting the feedback information, or a distance between the terminal node performing relay communication and the abnormal terminal node.

4. The method according to claim 2, characterized in that: Selecting a terminal node from the plurality of terminal nodes based on a preset rule, and determining the terminal node as a terminal node capable of performing relay communication with the abnormal terminal node, comprises: Comparing the response speeds of the multiple terminal nodes in reporting the feedback information, and determining the terminal node with the fastest response speed as the relay node; or, The distances between the multiple terminal nodes and the abnormal terminal node are compared, and the terminal node with the shortest distance to the abnormal terminal node is determined as the relay node.

5. The method according to claim 1, characterized in that Establishing a communication connection with the abnormal terminal node through the relay node includes: Record the communication path with the abnormal terminal node; wherein the communication path includes the main station, the relay node, and the abnormal terminal node, the main station sends the communication information with the abnormal terminal node to the relay node, and the relay node forwards the communication information to the abnormal terminal node after receiving it, so as to establish a communication connection with the abnormal terminal node.

6. A relay control device, characterized in that: include: An abnormal terminal node determination module, used to determine an abnormal terminal node that cannot communicate with the master station; A relay node determination module, used to control the master station to send a relay request to all terminal nodes, and determine a terminal node that can perform relay communication with the abnormal terminal node as a relay node for the abnormal terminal node; A communication module, used to realize the communication connection between the master station and the abnormal terminal node through the relay node; The relay node determination module includes: A receiving unit, configured to receive feedback information sent by one or more terminal nodes; wherein the feedback information is generated after the terminal node receives a relay request and forwards it to the abnormal terminal node, and receives a response from the abnormal terminal node; A first determining unit, configured to determine the terminal node as a terminal node capable of performing relay communication with the abnormal terminal node when there is only one terminal node; The second determining unit is used to select a terminal node from the multiple terminal nodes based on a preset rule when there are multiple terminal nodes, and determine the terminal node as a terminal node that can perform relay communication with the abnormal terminal node.

7. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the relay control method according to any one of claims 1 to 5 is implemented.

8. A storage medium comprising computer executable instructions, wherein the computer executable instructions are used to execute the relay control method according to any one of claims 1 to 5 when executed by a computer processor.

Images