CN110958629A - Distributed self-organizing wireless narrowband communication method, device, terminal equipment and system - Google Patents
Distributed self-organizing wireless narrowband communication method, device, terminal equipment and system Download PDFInfo
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Abstract
The application provides a distributed self-organizing wireless narrowband communication method, a device, terminal equipment and a system. The method comprises the following steps: acquiring data information to be sent; inquiring a routing state table of current terminal equipment to acquire a wireless communication link topological structure of the distributed self-organizing wireless narrowband communication system, wherein two nodes connected on the wireless communication link topological structure are in communication connection; each node independently maintains the routing information of the node without routing binding among the nodes; automatically searching a route according to the wireless communication link topological structure to obtain a target transmission path, wherein the target transmission path points to the target equipment from the current terminal equipment; and sending the data information to the next node on the target transmission path. According to the method and the device, the data information is forwarded through multiple paths of the nodes, transmission faults caused by single-node faults can be avoided, and the target device capable of transmitting the data information quickly and efficiently can be ensured.
Description
Technical Field
The application relates to the technical field of computer networks, in particular to a distributed self-organizing wireless narrowband communication method, a device, terminal equipment and a system.
Background
The narrow-band Internet of things technology is a novel Internet of things technology and has the application scene of the Internet of things with low speed, low cost, low power consumption, wide coverage and large connection. The wireless transmission part is the key of the electrocardio telemetry system and plays an important role in the electrocardio telemetry system. The wireless transmission modes are many, and the current internet of things technology has great problems in some occasions. For example, the bluetooth transmission distance is only a few meters, and the transmission rate is low, so that the bluetooth transmission device is not suitable for a large internet of things with a long distance; wifi is high in cost, needs an independent network card and a router or AP equipment; the zigbee technology needs to have a root routing design, and when a single node fault occurs, a data transmission fault is caused.
In view of the above problems, no effective technical solution exists at present.
Disclosure of Invention
An object of the embodiments of the present application is to provide a distributed self-organizing wireless narrowband communication method, apparatus, terminal device, and system, which avoid a transmission failure caused by a single-node failure, and can ensure a target device capable of quickly and efficiently transmitting data information.
In a first aspect, an embodiment of the present application provides a distributed ad hoc wireless narrowband communication method, which is applied to a distributed ad hoc wireless narrowband communication system including a server, at least one transmission node device, and a plurality of terminal devices, where the method is applied to any of the terminal devices, and the method includes the following steps:
acquiring data information to be sent, wherein the data information carries first identification information of target equipment which finally receives the data information, and the target equipment is other terminal equipment or transmission node equipment;
inquiring a routing state table of current terminal equipment to obtain a wireless communication link topological structure of the distributed self-organizing wireless narrowband communication system, wherein two nodes connected on the wireless communication link topological structure are in communication connection, each node independently maintains routing information in the routing state table of the node, and routing binding is not required between the nodes;
acquiring a target transmission path according to the wireless communication link topological structure, wherein the target transmission path points to the target equipment from the current terminal equipment;
and sending the data information to a next node on the target transmission path, wherein the next node is transmission node equipment or other terminal equipment.
According to the embodiment of the application, the data information is forwarded through the plurality of nodes, and the appropriate target transmission path is selected according to the routing state table, so that the transmission fault caused by the single-node fault can be avoided, and the target equipment capable of rapidly and efficiently transmitting the data information can be ensured.
Optionally, in the distributed ad hoc wireless narrowband communication method according to the embodiment of the present application, the step of obtaining a target transmission path according to the wireless communication link topology includes:
and acquiring a transmission path with the minimum hop number as a target transmission path according to the wireless communication link topological structure.
According to the embodiment of the application, the transmission paths are screened through the hop count, so that the target transmission path is obtained, the transfer times of the data information can be reduced, and the transmission efficiency can be improved.
Optionally, in the distributed ad hoc wireless narrowband communication method according to the embodiment of the present application, the step of obtaining a target transmission path according to the wireless communication link topology includes:
acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure;
acquiring the delay information of each transmission path according to the routing state table;
and screening out the transmission path with the minimum transmission delay from the at least two transmission paths according to the delay information to be used as a target transmission path.
According to the embodiment of the application, the transmission paths are screened through the hop count, and the optimal target transmission path is obtained by combining the delay information of the transmission paths, so that the transmission efficiency can be improved.
Optionally, in the distributed ad hoc wireless narrowband communication method according to the embodiment of the present application, the step of obtaining a target transmission path according to the wireless communication link topology includes:
acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure;
acquiring signal intensity information of each transmission path according to the routing state table;
and screening out the transmission path with the strongest signal strength from the at least two transmission paths according to the signal strength information to serve as a target transmission path.
According to the embodiment of the application, the transmission paths are screened through the hop count, and the optimized target transmission path is obtained by combining the signal strength information of the transmission paths, so that the communication stability can be improved, and the data packet drop rate is reduced.
Optionally, in the distributed ad hoc wireless narrowband communication method according to the embodiment of the present application, the step of obtaining a target transmission path according to the wireless communication link topology includes:
acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure;
acquiring signal strength information and delay information of each transmission path according to the routing state table;
and screening one transmission path from the at least two transmission paths as a target transmission path according to the signal strength information and the delay information.
According to the embodiment of the application, the transmission paths are screened through the hop count, and the optimized target transmission path is obtained by combining the signal strength information and the delay information of the transmission paths, so that the communication stability can be improved, the data packet drop rate is reduced, and the transmission efficiency is improved.
Optionally, in the distributed ad hoc wireless narrowband communication method according to the embodiment of the present application, the step of obtaining a target transmission path according to the wireless communication link topology includes:
acquiring a transmission path with the minimum hop count as a target transmission path according to the wireless communication link topological structure;
acquiring a transmission path with the second smallest hop count as a standby transmission path according to the wireless communication link topological structure;
after the step of sending the data information to the corresponding next node according to the target transmission path, the method further includes:
judging whether receiving response information of the next node is received within a preset time period, wherein the receiving response information is information returned to the current terminal equipment after the next node receives the data information;
and if the receiving response information is not received, sending the data information to the next node on the standby transmission path.
Optionally, in the distributed ad-hoc wireless narrowband communication method according to the embodiment of the present application, the data information to be sent includes first data received from another node and/or second data generated by a current terminal device.
Optionally, in the distributed self-organizing narrowband wireless communication method according to the embodiment of the present application, the step of querying the routing state table of the current terminal device to obtain the wireless communication link topology of the distributed self-organizing narrowband wireless communication system includes:
and when the data information to be sent is detected, updating the routing state table of the current terminal equipment.
In a second aspect, an embodiment of the present application further provides a distributed ad-hoc wireless narrowband communication apparatus, which is applied to a distributed ad-hoc wireless narrowband communication system including a server, at least one transmission node device, and a plurality of terminal devices, where the apparatus includes:
a first obtaining module, configured to obtain data information to be sent, where the data information carries first identification information of a target device that finally receives the data information, and the target device is another terminal device or a transmission node device;
a second obtaining module, configured to query a routing state table of a current terminal device to obtain a wireless communication link topology structure of the distributed self-organizing wireless narrowband communication system, where two nodes connected on the wireless communication link topology structure are in communication connection with each other, and each node independently maintains routing information in its own routing state table without performing routing binding between nodes;
a third obtaining module, configured to obtain a target transmission path according to the wireless communication link topology, where the target transmission path points to the target device from the current terminal device;
and the sending module is used for sending the data information to a next node on the target transmission path, wherein the next node is transmission node equipment or other terminal equipment.
In a third aspect, an embodiment of the present application provides a terminal device, which includes a processor and a memory, where the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the method provided in the first aspect are executed.
In a fourth aspect, embodiments of the present application provide a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs the steps in the method as provided in the first aspect.
In a fifth aspect, an embodiment of the present application provides a distributed ad hoc wireless narrowband communication system, including: the system comprises a server, at least one transmission node and a plurality of terminal devices;
each transmission node device and each terminal device are provided with a distributed self-organizing wireless narrowband communication module, each terminal device is in self-organizing network connection with each transmission node device or other terminal devices in an effective communication range through the distributed self-organizing wireless narrowband communication module on the terminal device, and the server is in communication connection with at least one transmission node;
the terminal device of any of the above.
As can be seen from the above, in the present application, data information to be sent is obtained, where the data information carries first identification information of a target device that finally receives the data information, and the target device is other terminal device or transmission node device; inquiring a routing state table of current terminal equipment to acquire a wireless communication link topological structure of the distributed self-organizing wireless narrowband communication system, wherein two nodes connected on the wireless communication link topological structure are in communication connection; acquiring a target transmission path according to the wireless communication link topological structure, wherein the target transmission path points to the target equipment from the current terminal equipment; sending the data information to a next node on the target transmission path, wherein the next node is transmission node equipment or other terminal equipment; therefore, data transmission is realized, data information is forwarded through the nodes, and a proper target transmission path is selected according to the routing state table, so that transmission faults caused by single-node faults can be avoided, and target equipment capable of quickly and efficiently transmitting the data information can be ensured.
Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a scene schematic diagram of a distributed ad hoc wireless narrowband communication method and apparatus provided in an embodiment of the present application.
Fig. 2 is a flowchart of a distributed ad hoc wireless narrowband communication method according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a wireless communication link topology in a distributed ad hoc wireless narrowband communication method according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a distributed ad-hoc wireless narrowband communication apparatus according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, fig. 1 is a diagram illustrating an application scenario of a distributed ad-hoc wireless narrowband communication method and apparatus according to some embodiments of the present application. The distributed self-organizing wireless narrowband communication method and the device are applied to a distributed self-organizing wireless narrowband communication system. The distributed ad-hoc wireless narrowband communication system comprises a plurality of terminal devices 10 for wearing on a patient, at least one transmission node device 20 and a server 30. Each terminal device 10 is provided with a detection module 11 for detecting body parameter information of a patient and a distributed self-organizing wireless narrowband communication module 12, for example, the detection module 11 may be an electrocardiographic detection module for detecting electrocardiographic information or a body temperature detection module for detecting body temperature, and certainly, may also be a composite detection module for detecting multiple body parameters at the same time. The distributed ad-hoc wireless narrowband communication method and apparatus are integrated in the form of a computer program in the distributed ad-hoc wireless narrowband communication module 12 of the terminal device 10 or the distributed ad-hoc wireless narrowband communication module 12 of the transmission node device 20, so as to execute the following steps: when a terminal device 10 generates data information based on its own detection operation or receives data information sent by other terminal devices 10 or transmission node devices 20, querying a real-time routing state table of the current terminal device to obtain a wireless communication link topology structure of the distributed self-organizing wireless narrowband communication system, wherein two nodes connected on the wireless communication link topology structure are in communication connection; then, the terminal device 10 obtains a target transmission path according to the wireless communication link topology structure, and the target transmission path points to the target device from the current terminal device; and finally, the terminal equipment sends the data information to a next node on the target transmission path, wherein the next node is transmission node equipment or other terminal equipment. When the next node receives the data information, if the node is not the final node, the node also executes the operation executed by the current terminal equipment, replans the target transmission path according to the current real-time routing state table, and then transmits the data information to the next node until the data information is transmitted to the target equipment.
It will be appreciated, of course, that in some embodiments, the transfer node apparatus 20 may be a server itself, i.e., the functions of the transfer node apparatus 20 and a server 30 are integrated into one apparatus.
Referring to fig. 2, fig. 2 is a flowchart of a distributed ad-hoc wireless narrowband communication method applied to a distributed ad-hoc wireless narrowband communication system including a server, at least one transmission node device, and a plurality of terminal devices according to some embodiments of the present application. The method is applied to the terminal equipment and comprises the following steps:
s101, data information to be sent is obtained, the data information carries first identification information of target equipment which finally receives the data information, and the target equipment is other terminal equipment or transmission node equipment.
S102, a routing state table of the current terminal equipment is inquired to obtain a wireless communication link topological structure of the distributed self-organizing wireless narrowband communication system, two nodes connected on the wireless communication link topological structure are in communication connection, each node independently maintains routing information in the routing state table of the node, and routing binding between the nodes is not needed.
S103, acquiring a target transmission path according to the wireless communication link topological structure, wherein the target transmission path points to the target equipment from the current terminal equipment.
And S104, sending the data information to a next node on the target transmission path, wherein the next node is transmission node equipment or other terminal equipment.
In step S101, the data information acquired by the current terminal device may be data information generated by performing a detection operation by itself, that is, the current terminal device is a starting device for sending the data information. The data information may also be data information received from other terminal devices or transmission node devices, that is, an intermediate node transmitted by the current terminal device for the data information. The data information includes target data and first identification information. The target data is detection data to be transmitted to the server or core data to be issued by the server to a certain terminal device. The first identification information is used for indicating the end point of the data information transmission.
In this step S102, the terminal device may acquire the link connection status of the whole system in a broadcast manner, which belongs to the prior art and is not described herein too much. Then, a wireless communication link topology including nodes each corresponding to a terminal device or a transmission node device is established. As shown in fig. 3, the current terminal device is connected to the transmission node device through a network formed by nodes a to I. Of course, it is understood that two nodes connected to each other may be bi-directional intercommunicated or may be uni-directional connected.
It is understood that in some embodiments, before executing the step S102, the following steps are also required to be executed: and when the data information to be sent is detected, updating the routing state table of the current terminal equipment. That is, the routing state table is updated in real time each time data information is transmitted, so as to avoid that the topology structure of the wireless communication link does not conform to the current situation.
In step S103, an optimal transmission path from the current terminal device to the target device is established through the topology of the wireless communication link, that is, the target transmission path. When the target path is established, the principle of the minimum hop count is used as much as possible, so that the forwarding times of the intermediate node are reduced, and the transmission efficiency is improved.
Specifically, in some embodiments, this step S103 includes: and acquiring a transmission path with the minimum hop number as a target transmission path according to the wireless communication link topological structure. Of course, in this case, there is only one transmission path with the smallest number of hops, so that no other parameters need to be used for further screening.
In some embodiments, this step S103 includes: s1031, obtaining at least two transmission paths with the minimum hop number according to the wireless communication link topological structure; s1031, obtaining the delay information of each transmission path according to the routing state table; s1033, the transmission path with the minimum transmission delay is screened out from the at least two transmission paths according to the delay information and used as a target transmission path. However, since the hop counts of the at least two transmission paths are the same, it is necessary to perform the determination based on other parameters. The delay information may be obtained by broadcasting. Each terminal device has two channels, a control information transmission channel and a data information transmission channel. The delay information is broadcast over the control information transmission channel. In step S1033, the transmission path with the smallest average delay time is selected as the target transmission path from among the plurality of transmission paths satisfying the smallest number of hops. That is, the transmission delays of the nodes are summed and divided by the number of nodes on the transmission path.
In some embodiments, this step S103 includes: s1034, acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure; s1035, obtaining signal strength information of each transmission path according to the routing state table; s1036, screening out the transmission path with the strongest signal strength from the at least two transmission paths according to the signal strength information to serve as a target transmission path. However, since the hop counts of the at least two transmission paths are the same, it is necessary to perform the determination based on other parameters. The delay information may be obtained by broadcasting. Each terminal device has two channels, a control information transmission channel and a data information transmission channel. The signal strength information is broadcast over the control information transmission channel. The signal strength information refers to the strength of a communication signal between any two adjacent nodes on the transmission path. In step S1036, among the plurality of transmission paths satisfying the minimum hop count, the transmission path having the highest average signal strength is selected as the target transmission path.
In some embodiments, this step S103 includes: s1037, acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topology structure; s1038, acquiring signal strength information and delay information of each transmission path according to the routing state table; s1039, a transmission path is screened out from the at least two transmission paths as a target transmission path according to the signal intensity information and the time delay information. By performing equalization selection in combination with the delay information and the signal strength information, for example, weighting coefficients of signal strength and delay may be preset, and then selection is performed based on the set weighting coefficients, so as to screen out a transmission path with stronger signal strength and smaller delay.
In some embodiments, this step S103 comprises the following sub-steps: acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure; acquiring signal strength information, delay information, link quality parameters and electric quantity information of each node on each transmission path according to the routing state table; and screening out one transmission path from at least two transmission paths as a target transmission path according to the signal strength information, the delay information, the link quality parameters and the electric quantity information of each node on the path. Wherein the link quality parameter is calculated according to predefined parameters, such as channel status, task amount, etc. The electric quantity information is the electric quantity information of the battery of each terminal device on the path, so that transmission interruption caused by midway power failure is avoided.
In step S104, after the target transmission path is obtained, the data information may be directly sent to the next node on the target transmission path. The next node is a transmission node device or other terminal device. When the next node receives the data information, if the node is not the final node, the node also executes the operation executed by the current terminal equipment, replans the target transmission path according to the current real-time routing state table, and then transmits the data information to the next node until the data information is transmitted to the target equipment.
It is to be understood that, in some embodiments, this step S103 includes: acquiring a transmission path with the minimum hop count as a target transmission path according to the wireless communication link topological structure; and acquiring a transmission path with the second smallest hop count as a standby transmission path according to the wireless communication link topology structure. That is, two transmission paths need to be established, one of which is used as a backup.
Correspondingly, after the step S104 is completed, the method further includes the following steps:
and S105, judging whether receiving response information of the next node is received within a preset time period, wherein the receiving response information is information returned to the current terminal equipment by the next node after the data information is received.
And S106, if the receiving response information is not received, sending the data information to the next node on the standby transmission path.
In step S105, the preset time periods may be set to 5S or 6S, 3S, etc. Of course, it is understood that the preset time period may also be set based on the size of the data information, and the larger the data information is, the longer the preset time period is.
In the step S106, the same procedure as that of the step S104 is performed, except that the target transmission path is replaced with the alternate transmission path.
As can be seen from the above, in the present application, data information to be sent is obtained, where the data information carries first identification information of a target device that finally receives the data information, and the target device is other terminal device or transmission node device; inquiring a routing state table of current terminal equipment to acquire a wireless communication link topological structure of the distributed self-organizing wireless narrowband communication system, wherein two nodes connected on the wireless communication link topological structure are in communication connection; acquiring a target transmission path according to the wireless communication link topological structure, wherein the target transmission path points to the target equipment from the current terminal equipment; sending the data information to a next node on the target transmission path, wherein the next node is transmission node equipment or other terminal equipment; therefore, data transmission is realized, data information is forwarded through the nodes, and a proper target transmission path is selected according to the routing state table, so that transmission faults caused by single-node faults can be avoided, and target equipment capable of quickly and efficiently transmitting the data information can be ensured.
Referring to fig. 4, fig. 3 is a block diagram of a distributed ad hoc wireless narrowband communication device according to some embodiments of the present application. The device includes: a first obtaining module 201, a second obtaining module 202, a third obtaining module 203 and a sending module 204.
The first obtaining module 201 is configured to obtain data information to be sent, where the data information carries first identification information of a target device that finally receives the data information, and the target device is other terminal device or transmission node device; the data information acquired by the current terminal device may be data information generated by performing a detection operation by itself, that is, the current terminal device is a starting device for sending the data information. The data information may also be data information received from other terminal devices or transmission node devices, that is, an intermediate node transmitted by the current terminal device for the data information. The data information includes target data and first identification information. The target data is detection data to be transmitted to the server or core data to be issued by the server to a certain terminal device. The first identification information is used for indicating the end point of the data information transmission. Each node independently maintains the routing information in the routing state table of the node, and routing binding is not needed among the nodes.
The second obtaining module 202 is configured to query a routing state table of a current terminal device to obtain a wireless communication link topology structure of the distributed self-organizing wireless narrowband communication system, where two nodes connected on the wireless communication link topology structure are in communication connection; the terminal device may obtain the link connection condition of the whole system in a broadcast manner, which belongs to the prior art and is not described too much herein. Then, a wireless communication link topology including nodes each corresponding to a terminal device or a transmission node device is established. As shown in fig. 3, the current terminal device is connected to the transmission node device through a network formed by nodes a to I. Of course, it is understood that two nodes connected to each other may be bi-directional intercommunicated or may be uni-directional connected. It is to be appreciated that in some embodiments, the second obtaining module 202 is further configured to: and when the data information to be sent is detected, updating the routing state table of the current terminal equipment. That is, the routing state table is updated in real time each time data information is transmitted, so as to avoid that the topology structure of the wireless communication link does not conform to the current situation.
The third obtaining module 203 is configured to obtain a target transmission path according to the wireless communication link topology, where the target transmission path points to the target device from the current terminal device. An optimal transmission path from the current terminal equipment to the target equipment is established through the wireless communication link topological structure, namely the target transmission path. When the target path is established, the principle of the minimum hop count is used as much as possible, so that the forwarding times of the intermediate node are reduced, and the transmission efficiency is improved.
Specifically, in some embodiments, the third obtaining module 203 is configured to: and acquiring a transmission path with the minimum hop number as a target transmission path according to the wireless communication link topological structure. Of course, in this case, there is only one transmission path with the smallest number of hops, so that no other parameters need to be used for further screening.
In some embodiments, the third obtaining module 203 is configured to: acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure; acquiring the delay information of each transmission path according to the routing state table; and screening out the transmission path with the minimum transmission delay from the at least two transmission paths according to the delay information to be used as a target transmission path. However, since the hop counts of the at least two transmission paths are the same, it is necessary to perform the determination based on other parameters. The delay information may be obtained by broadcasting. Each terminal device has two channels, a control information transmission channel and a data information transmission channel. The delay information is broadcast over the control information transmission channel. Among the plurality of transmission paths satisfying the minimum hop count, the transmission path with the minimum average delay time is selected as the target transmission path. That is, the transmission delays of the nodes are summed and divided by the number of nodes on the transmission path.
In some embodiments, the third obtaining module 203 is configured to: acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure; acquiring signal intensity information of each transmission path according to the routing state table; and screening out the transmission path with the strongest signal strength from the at least two transmission paths according to the signal strength information to serve as a target transmission path. However, since the hop counts of the at least two transmission paths are the same, it is necessary to perform the determination based on other parameters. The delay information may be obtained by broadcasting. Each terminal device has two channels, a control information transmission channel and a data information transmission channel. The signal strength information is broadcast over the control information transmission channel. The signal strength information refers to the strength of a communication signal between any two adjacent nodes on the transmission path. Among a plurality of transmission paths satisfying the minimum number of hops, a transmission path having the maximum average signal strength is selected as a target transmission path.
In some embodiments, the third obtaining module 203 is configured to: acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure; acquiring signal strength information and delay information of each transmission path according to the routing state table; and screening one transmission path from the at least two transmission paths as a target transmission path according to the signal strength information and the delay information. By performing equalization selection in combination with the delay information and the signal strength information, for example, weighting coefficients of signal strength and delay may be preset, and then selection is performed based on the set weighting coefficients, so as to screen out a transmission path with stronger signal strength and smaller delay.
The sending module 204 is configured to send the data information to a next node on the target transmission path, where the next node is a transmission node device or other terminal device. After the target transmission path is obtained, the data information may be directly sent to the next node on the target transmission path. The next node is a transmission node device or other terminal device. When the next node receives the data information, if the node is not the final node, the node also executes the operation executed by the current terminal equipment, replans the target transmission path according to the current real-time routing state table, and then transmits the data information to the next node until the data information is transmitted to the target equipment.
As can be seen from the above, in the present application, data information to be sent is obtained, where the data information carries first identification information of a target device that finally receives the data information, and the target device is other terminal device or transmission node device; inquiring a routing state table of current terminal equipment to acquire a wireless communication link topological structure of the distributed self-organizing wireless narrowband communication system, wherein two nodes connected on the wireless communication link topological structure are in communication connection; acquiring a target transmission path according to the wireless communication link topological structure, wherein the target transmission path points to the target equipment from the current terminal equipment; sending the data information to a next node on the target transmission path, wherein the next node is transmission node equipment or other terminal equipment; therefore, data transmission is realized, data information is forwarded through the nodes, and a proper target transmission path is selected according to the routing state table, so that transmission faults caused by single-node faults are avoided, and target equipment capable of quickly and efficiently transmitting the data information can be ensured.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application, where the present application provides a terminal device 3, including: the processor 301 and the memory 302, the processor 301 and the memory 302 being interconnected and communicating with each other via a communication bus 303 and/or other form of connection mechanism (not shown), the memory 302 storing a computer program executable by the processor 301, the processor 301 executing the computer program when the computing device is running to perform the method of any of the alternative implementations of the embodiments described above.
The embodiment of the application provides a distributed self-organizing wireless narrowband communication system, which comprises: the system comprises a server, at least one transmission node and a plurality of terminal devices; each transmission node device and each terminal device are provided with a distributed self-organizing wireless narrow-band communication module, each terminal device is in self-organizing network connection with each transmission node device or other terminal devices in an effective communication range through the distributed self-organizing wireless narrow-band communication modules on the terminal device, and the server is in communication connection with at least one transmission node. Each of the plurality of terminal devices is the terminal device in the above embodiment.
The embodiment of the present application provides a storage medium, and when being executed by a processor, the computer program performs the method in any optional implementation manner of the above embodiment. The storage medium may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic Memory, a flash Memory, a magnetic disk, or an optical disk.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Furthermore, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (12)
1. A distributed ad-hoc wireless narrowband communication method applied to a distributed ad-hoc wireless narrowband communication system including a server, at least one transmission node device, and a plurality of terminal devices, the method being performed by the terminal devices, the method comprising the steps of:
acquiring data information to be sent, wherein the data information carries first identification information of target equipment which finally receives the data information, and the target equipment is other terminal equipment or transmission node equipment;
inquiring a routing state table of current terminal equipment to obtain a wireless communication link topological structure of the distributed self-organizing wireless narrowband communication system, wherein two nodes connected on the wireless communication link topological structure are in communication connection, each node independently maintains routing information in the routing state table of the node, and routing binding is not required between the nodes;
acquiring a target transmission path according to the wireless communication link topological structure, wherein the target transmission path points to the target equipment from the current terminal equipment;
and sending the data information to a next node on the target transmission path, wherein the next node is transmission node equipment or other terminal equipment.
2. The distributed ad-hoc wireless narrowband communication method according to claim 1, wherein the step of obtaining a target transmission path according to the wireless communication link topology comprises:
and acquiring a transmission path with the minimum hop number as a target transmission path according to the wireless communication link topological structure.
3. The distributed ad-hoc wireless narrowband communication method according to claim 1, wherein the step of obtaining a target transmission path according to the wireless communication link topology comprises:
acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure;
acquiring the delay information of each transmission path according to the routing state table;
and screening out the transmission path with the minimum transmission delay from the at least two transmission paths according to the delay information to be used as a target transmission path.
4. The distributed ad-hoc wireless narrowband communication method according to claim 1, wherein the step of obtaining a target transmission path according to the wireless communication link topology comprises:
acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure;
acquiring signal intensity information of each transmission path according to the routing state table;
and screening out the transmission path with the strongest signal strength from the at least two transmission paths according to the signal strength information to serve as a target transmission path.
5. The distributed ad-hoc wireless narrowband communication method according to claim 1, wherein the step of obtaining a target transmission path according to the wireless communication link topology comprises:
acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure;
acquiring signal strength information and delay information of each transmission path according to the routing state table;
and screening one transmission path from the at least two transmission paths as a target transmission path according to the signal strength information and the delay information.
6. The distributed ad-hoc wireless narrowband communication method according to claim 1, wherein the step of obtaining a target transmission path according to the wireless communication link topology comprises:
acquiring at least two transmission paths with the minimum hop number according to the wireless communication link topological structure;
acquiring signal strength information, delay information, link quality parameters and electric quantity information of each node on each transmission path according to the routing state table;
and screening out one transmission path from at least two transmission paths as a target transmission path according to the signal strength information, the delay information, the link quality parameters and the electric quantity information of each node on the path.
7. The distributed ad-hoc wireless narrowband communication method according to claim 1, wherein the step of obtaining a target transmission path according to the wireless communication link topology comprises:
acquiring a transmission path with the minimum hop count as a target transmission path according to the wireless communication link topological structure;
acquiring a transmission path with the second smallest hop count as a standby transmission path according to the wireless communication link topological structure;
after the step of sending the data information to the corresponding next node according to the target transmission path, the method further includes:
judging whether receiving response information of the next node is received within a preset time period, wherein the receiving response information is information returned to the current terminal equipment after the next node receives the data information;
and if the receiving response information is not received, sending the data information to the next node on the standby transmission path.
8. The distributed ad-hoc wireless narrowband communication method according to claim 1, wherein the data information to be transmitted comprises first data received from other nodes and/or second data generated by a current terminal device.
9. The distributed ad-hoc wireless narrowband communication method according to claim 1, wherein before the step of querying a routing state table of a current terminal device to obtain a wireless communication link topology of the distributed ad-hoc wireless narrowband communication system, the method further comprises:
and when the data information to be sent is detected, updating the routing state table of the current terminal equipment.
10. A distributed ad-hoc wireless narrowband communication apparatus, applied to a distributed ad-hoc wireless narrowband communication system including a server, at least one transmission node device, and a plurality of terminal devices, the apparatus being executed by the terminal devices, the apparatus comprising:
a first obtaining module, configured to obtain data information to be sent, where the data information carries first identification information of a target device that finally receives the data information, and the target device is another terminal device or a transmission node device;
a second obtaining module, configured to query a routing state table of a current terminal device to obtain a wireless communication link topology structure of the distributed self-organizing wireless narrowband communication system, where two nodes connected on the wireless communication link topology structure are in communication connection with each other, and each node independently maintains routing information in its own routing state table without performing routing binding between nodes;
a third obtaining module, configured to obtain a target transmission path according to the wireless communication link topology, where the target transmission path points to the target device from the current terminal device;
and the sending module is used for sending the data information to a next node on the target transmission path, wherein the next node is transmission node equipment or other terminal equipment.
11. A terminal device comprising a processor and a memory, the memory storing computer readable instructions which, when executed by the processor, perform the method of any one of claims 1 to 9.
12. A distributed ad-hoc wireless narrowband communication system, comprising: the system comprises a server, at least one transmission node and a plurality of terminal devices;
each transmission node device and each terminal device are provided with a distributed self-organizing wireless narrowband communication module, each terminal device is in self-organizing network connection with each transmission node device or other terminal devices in an effective communication range through the distributed self-organizing wireless narrowband communication module on the terminal device, and the server is in communication connection with at least one transmission node;
the terminal device is the terminal device of claim 11.
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