WO2019237262A1

WO2019237262A1 - Low-power bluetooth networking method, electronic device, network, and storage medium

Info

Publication number: WO2019237262A1
Application number: PCT/CN2018/090931
Authority: WO
Inventors: 朱洲; 李志晨; 刘延飞; 潘阳
Original assignee: 卧槽科技（深圳）有限公司
Priority date: 2018-06-13
Filing date: 2018-06-13
Publication date: 2019-12-19
Also published as: CN112075102A; CN112075102B

Abstract

The present invention discloses a low-power Bluetooth networking method, an electronic device, a network, and a storage medium. The method comprises: a current node scanning a device node within a communication range; the current node obtaining routing information from the device node within the communication range; the current node generating a first path according to the routing information of the device node, wherein the first path is specifically a path in which the current node passes a corresponding device node and reaches a root node; and if the number of the first paths is greater than one, the current node marking one of the first paths as a current uplink path, and marking the other first paths as alternate uplink paths. In the invention, one path is marked as a current path and the others as alternate paths when there are a plurality of paths between a current node and a root node, so that when the current node communicates with the root node, the root node normally communicates with the current node by means of the current path, and in certain situations, such as if the current path has failed, communication between the root node and the current node is established by means of an alternate path, and as a result message transmission and reception success rates can be ensured.

Description

Low-power Bluetooth networking method, electronic device, network and storage medium

Technical field

The present invention relates to Bluetooth networking technology, and in particular, to a low-power Bluetooth networking method, an electronic device, a network, and a storage medium.

Background technique

In July 2017, the Mesh Working Group of Bluetooth proposed a BLE-based networking specification. This specification is a Mesh network technology based on the Flooding protocol. For low-power nodes in the Mesh network topology proposed by the specification, it can only communicate with There are friend nodes around to communicate, and more node roles are assigned in the use of the entire network, which is not applicable to a network of low-power Bluetooth devices that mostly use battery power.

The existing Bluetooth device networking usually adopts a tree networking method, but how to establish a path between the device node and the root node when the device node enters the network to ensure the success rate of message transmission and reception is still a technical problem to be solved.

Summary of the Invention

In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a low-power Bluetooth networking method for the current node; provide a low-power Bluetooth networking method for the root node; provide an electronic device that can be used as the current node; Provide electronic devices that can be used as root nodes; provide Bluetooth low energy networks and storage media with computer programs stored; when the current node communicates with the root node, the root node communicates with the current node through the current path, and the current path fails, etc. In some cases, the communication between the root node and the current node is established through the backup path, so that the success rate of receiving and sending messages can be guaranteed.

The objective of the present invention is achieved by the following technical solutions:

The Bluetooth low energy networking method is used for the current node. The Bluetooth low energy networking method includes the following steps:

Scan for device nodes within communication range;

Obtaining routing information from a device node within the communication range;

Generating a first path according to the routing information of the device node, where the first path is specifically a path from the current node to the root node through the corresponding device node;

When the number of the first paths is more than one, a first path is marked as a current uplink path, and the remaining first paths are marked as standby uplink paths.

The Bluetooth low energy networking method is used for the root node. The Bluetooth low energy networking method includes the following steps:

Obtaining an access notification from the current node, where the access notification is sent by the current node according to the first path;

Generating a second path according to a path that the current node sends the access notification; the second path is specifically a path from a root node to the current node through a corresponding device node;

One second path is marked as the current downlink path, and the remaining second paths are standby downlink paths.

An electronic device includes a memory, a processor, and a program stored in the memory. The program is configured to be executed by a processor. When the processor executes the program, the steps of the foregoing Bluetooth low energy networking method applied to the current node are implemented. .

An electronic device includes a memory, a processor, and a program stored in the memory. The program is configured to be executed by a processor. When the processor executes the program, the steps of the foregoing Bluetooth low energy networking method applied to a root node are implemented. .

The low-power Bluetooth network includes at least one electronic device to which the foregoing root node low-power Bluetooth networking method is applied, and at least one electronic device to which the foregoing current node low-power Bluetooth networking method is applied.

A storage medium storing a computer program, which is characterized in that when the computer program is executed by a processor, the steps of the above-mentioned Bluetooth low energy networking method applied to the root node and / or the current node are implemented.

Compared with the prior art, the embodiment of the present invention has the beneficial effect that when there are multiple paths between the current node and the root node, one path is marked as the current path, and the rest are backup paths. Therefore, the current node and the root node When communicating, the root node communicates with the current node through the current path, and when the current path fails, etc., the communication between the root node and the current node is established through the backup path, thereby ensuring the success rate of message transmission and reception.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a Bluetooth network;

2 is a schematic flowchart of a Bluetooth low energy networking method according to the first embodiment of the present invention;

FIG. 3 is a schematic flowchart of a current node joining a Bluetooth network;

FIG. 4 is a schematic flowchart of management of a current downlink path and a standby downlink path by a root node; FIG.

5 is a schematic flowchart of a root node marking a current downlink path;

FIG. 6 is a schematic structural diagram of a current node or a root node in FIG. 2.

detailed description

In the following, the present invention is further described with reference to the drawings and specific embodiments. It should be noted that, under the premise of no conflict, the embodiments described below or technical features can be arbitrarily combined to form a new embodiment. .

Figure 1 shows the structure of the Bluetooth network, which is the topology of the Mesh network. A mesh network composed of low-power Bluetooth devices, that is, BLE devices, does not require special pre-configuration when a BLE device node joins the mesh network. All BLE devices can act as relay devices in the mesh network for message forwarding to expand BLE communication. range.

In Figure 1, device node R is the root node, and device nodes A, B, C, D, E, F, G, H, I, J, and K are ordinary device nodes; each device node has a unique physical Address or other identifying information. Communication between device nodes is based on the GATT service defined by the protocol. This service can use two or more features to send and receive data between two device nodes. The root node R is used to manage and optimize the routing table of the entire Mesh network and maintain routing changes caused by device nodes joining the network, leaving the network, and moving device nodes. The dotted circle in Figure 1 indicates the BLE communication range of device node A. User mobile terminals such as mobile phones, tablets, or computers in this communication range can communicate with device node A, or through device node A and the Bluetooth low energy network. Communication with other ordinary device nodes or root nodes.

As a preferred implementation, the root node R is a non-power-sensitive Bluetooth low energy device, such as a BLE device powered by AC power, which can be referred to as a first type of BLE device; other common device nodes are generally power-sensitive Low-power Bluetooth devices, such as battery-powered BLE devices, are called Type 2 BLE devices.

The first type of BLE device can be a device with only a single BLE communication function, or a device that has both BLE function and other external networks, such as Wi-Fi or Enternet, and other network communication functions. The second type of BLE device node is usually used for Achieve a single BLE communication function.

Example one

Figure 2 is a flowchart of the Bluetooth low energy networking method. The Bluetooth low energy networking method includes the following steps:

Step S110: The current node scans the device nodes within the communication range.

All the device nodes in the Mesh network are in the broadcast state. The broadcast cycle can be determined according to the frequency, time period and remaining battery power of the device nodes in the routing table. All device nodes in the network can forward data information in the network for the relay device to expand the use range of Bluetooth low energy.

As shown in Fig. 1, taking device node A as the current node as an example, it is a device node that needs to access the Bluetooth network. The dotted circle is the BLE communication range of the current node A. Such device nodes will have a power switch or a similar power switch mechanism. This mechanism can be used to trigger a new device node A, that is, the current node A's network access process.

When the user powers on the current node A to start working through the power switch of the current node A or a similar power switch mechanism, the current node A will check its own routing table information. If the routing table information in the current node A is empty at this time, Then device node A performs scanning and broadcasting within a certain time. In this embodiment, the current node A can scan the surrounding device node B and device node E.

As a preferred embodiment, if there are no other device nodes within the current node scanning communication range, the mode is switched to a broadcast state, and the broadcast information includes a network label, a device type, a battery level, and a hop value. The network label is used to identify and distinguish the Mesh network composed of the first type of BLE device nodes; the device type is used to identify and distinguish the device type of the device node, 0 is the first type of BLE device node, and 1 is the second type of BLE device node ; The battery level indicator is used to identify the battery level of the second-type BLE device node and whether it is lower than the preset usable threshold. If the second-type BLE device node detects that its own battery level is lower than the available battery level, it can be used. The threshold value of the broadcast packet is set to 1, otherwise the broadcast packet flag is set to 0; the hop value can be used to distinguish whether the device node is a networked device node or a non-networked device node. If the hop value is negative, it indicates that the A device node is a device node that is not connected to the network, that is, a node that cannot communicate with the root node. When the user terminal is located within the communication range of the current node A, broadcast information of the current node A is obtained; based on the broadcast information, it is determined that the current node A has not successfully joined the Bluetooth network managed by the corresponding root node and is an isolated device node.

Step S120: The current node obtains routing information from a device node within the communication range.

The device node B and the device node E that have already entered the network are always in a broadcast state, so the device node A can obtain their respective routing information from the device node B and the device node E. As a preferred embodiment, the broadcast packet of the device node includes its own hop value.

The hop value can be used to distinguish whether a device node is a networked device node or a non-networked device node. For a networked device node, it can distinguish the position of the mesh network where the device node is located, that is, the number of times it needs to send and forward when communicating with the root node. Taking the Mesh network shown in Figure 1 as an example, if the hop value of the root node R is defined as 0, the hop values of the device nodes B, C, and D are 1, and the device nodes A, E, F, F, G, H, and The hop value of I is 2 and the hop values of device nodes K and J are 3; for a device node that is not on the network, its hop value can be marked as -1.

As a preferred embodiment, if all other device nodes in the current node scanning communication range are device nodes that are not connected to the network, that is, nodes that cannot communicate with the root node, it switches to the broadcast state. When the user terminal is located within the communication range of the current node A, it can be judged that the current node A has not successfully joined the Bluetooth network and is an isolated device node according to the broadcast information of the current node A.

Step S130: The current node generates a first path according to the routing information of the device node, where the first path is specifically a path that the current node passes through the corresponding device node to the root node.

The current node A scans other device nodes in its communication range and obtains routing information of the corresponding device nodes. The routing information can indicate whether the corresponding device node can communicate with the root node. If it can, the hop value is a non-negative number. The routing information can also indicate the distance between the corresponding device node and the root node. In this embodiment, in the routing information of the networked device nodes B and E, the hop values are 1 and 2 respectively; it means that the routing tables of device nodes B and E contain the information of the root node R, so the current node A can pass the device node B and E establish a connection with the root node.

As a preferred implementation, step S130, the current node generates the first path according to the routing information of the device node, and specifically includes the following steps:

If the hop value of the device node meets the access condition, the current node generates a first path according to the routing information of the device node.

As a preferred implementation, if the hop value of a node device in the communication range of the current node A is a positive number, it means that the routing table of the device node B and E contains the information of the root node R, and the current node A can pass such a device node, such as Device nodes B and E establish a connection with the root node, that is, a first path such as A-B-R and A-E-B-R can be generated according to the routing information of such device nodes.

As a preferred embodiment, the hop value of the device node satisfies the access condition, and specifically, the hop value of the device node is not greater than the hop values of the remaining device nodes in the communication range.

That is, the node device with the smallest hop value in the communication range of the current node A is selected as the relay node of the current node A and the root node R; and a first path is generated according to the routing information of the relay node. As mentioned above, two paths that can be connected to the root node R can be generated based on the routing information of device nodes B and E, such as A-B-R and A-E-B-R; the node with the smallest hop value is preferentially selected The device serves as a relay node between the current node A and the root node R, that is, a shorter path is selected as the first path A-B-R.

As a preferred embodiment, as shown in FIG. 3, in step S130, the current node generates a first path according to the routing information of the device node. The first path is specifically after the current node passes the path from the corresponding device node to the root node, and then It includes the following steps:

Step S101: If the current node generates the first path, send an access notification to the root node according to the first path, and the root node obtains an access notification from the current node.

In this embodiment, the current node A needs to obtain the consent of the root node R before it can access the Bluetooth network. Therefore, after the first path is generated, an access notification needs to be sent to the root node. Specifically, an access notification is sent to the root node through the first path, such as A-B-R.

After the current node A generates the first path, it first informs the root node R through the first path that the current node A will join the mesh network of the root node R. If the root node R receives the notification of the current node A correctly, it sends an acknowledgement character ACK (Acknowledgment) to the current node A. If the access notification of the current node A is not received correctly, it sends a NAK (Negative Acknowledgment) to the current node A. To indicate a negative response or non-response. If the current node A receives a NAK or does not receive a response from the root node R within a predetermined time, the current node A fails to enter the network, and the current node A becomes an orphaned node that has not entered the network. If the current node A receives the confirmation character ACK, it successfully completes the step of notifying the network, and then sends an access notification to the root node through the first path, such as A-B-R.

As a preferred embodiment, if the current node A receives a NAK or does not receive a response from the root node R after a predetermined time, it switches to the broadcast state. When the user terminal is located within the communication range of the current node A, it can be judged that the current node A has not successfully joined the Bluetooth network and is an isolated device node according to the broadcast information of the current node A.

Step S102: If the root node agrees to the access notification of the current node, a second path is generated according to a path that the current node sends the access notification to; the second path is specifically the root node passing through the corresponding device node to the Describe the path of the current node.

After the root node R obtains the access notification from the current node A, it can generate a second path according to the path in which the current node A sends the access notification; for example, the path in which the current node A sends the access notification is the first path A-B- R, then the second path generated by the root node is R-B-A and passes through the corresponding device node B in the first path.

Step S103: The root node sends an authorization instruction to the current node according to the second path.

If network authorization is performed on the current node A, that is, the current node A is agreed to join the network, then an authorization instruction is sent to the current node A according to the second path.

As a preferred embodiment, after the root node R performs network authorization on the current node A, the current node A also needs to successfully confirm to join the network, and then a second path is generated according to the path in which the current node sends the access notification. The second path R-B-A is added to its own routing table information.

If the root node R does not grant network authorization to the current node A after receiving the access notification from the current node A, that is, it does not agree that the current node A joins the network, then the current node A fails to enter the network, and the current node A becomes an isolated orphan. node.

Step S104: If the current node obtains the authorization of the root node, save the first path.

The current node A obtains the authorization from the root node R and successfully confirms joining the Bluetooth network, and then saves the first path in its own routing table, such as A-B-R.

In another embodiment, as shown in FIG. 1, with device node K as the current node, in the process of joining a device from the network to the network, device node K can obtain it from device nodes F and G within its communication range. The corresponding routing information, including the routing tables of device nodes F and G with respect to R, are F-C-R and G-C-R, respectively; and the hop values of device nodes F and G are both 2. According to the foregoing, there are two first paths generated and saved by the current node K, that is, two paths to the root node R can be established in its routing table, which are K_F_C_R and K_G_C. —R. Correspondingly, there are also two second paths generated and saved in the root node R, which are R-C-F-K and R-C-G-K.

As a preferred embodiment, if the root node determines in step S101 that there is more than one path for the current node to send an access notification, the root node generates a second path according to the path that the current node sends the access notification, specifically: the root node A corresponding second path is generated according to each path of the access notification sent by the current node, and the number of the second paths is more than one.

The first path generated and saved by the current node K is two K-F-C-R and K-G-C-R. The current node sends more than one path for access notification, so the root node R is based on the first Path K_F_C_R generates a second path R_C_F_K, which passes through the corresponding device nodes C and F; according to the first path K_G_C_R, a second path R_C_G_ K passes through the corresponding device nodes C and G.

Step S140: When the number of the first paths is more than one, the current node marks one first path as a current uplink path, and marks the remaining first paths as standby uplink paths.

As a preferred embodiment, if the current node fails to communicate with the root node through the current uplink path, communicate with the root node through the standby uplink path.

The current node K has more than one first path. Therefore, when communicating with the root node R, you can choose to communicate with the root node R through one of the paths, that is, the current uplink path; and the remaining first paths are used as backup uplink paths. When the current uplink path fails, etc., the communication between the current node K and the root node R is established through the backup uplink path, so that the sending and receiving of messages can be guaranteed.

As a preferred implementation manner, specifically how to allocate the first path as the current uplink path or the standby uplink path is determined by the root node R, that is, in step S140, marking a first path as the current uplink path is specifically: The marking instruction obtained by the root node marks the corresponding first path as the current uplink path.

According to the low-power Bluetooth networking method provided by the embodiment of the present invention, when there are multiple paths between the current node and the root node, one path is marked as the current path, and the rest are standby paths. Therefore, the current node communicates with the root node. At this time, the root node communicates with the current node through the current path, and when the current path fails, etc., the root node establishes communication with the current node through the backup path, so as to ensure the success rate of message transmission and reception.

As shown in FIG. 4, in this embodiment, if the root node agrees to the access notification of the current node in the foregoing step S102, after generating the second path according to the path that the current node sends the access notification, the method further includes: The following steps:

Step S141: The root node marks a second path as a current downlink path, and the remaining second paths are standby downlink paths.

As a preferred embodiment, in step S141, after the root node marks a second path as the current downlink path and the remaining second paths are standby downlink paths, the method further includes the following steps: if the root node fails to communicate with the current node through the current downlink path, And communicating with the current node through the standby downlink path.

There is more than one second path for the root node R. Therefore, when communicating with the current node A, you can choose to communicate with the current node A through one of the paths, that is, the current downlink path; and the remaining second paths are used as backup downlink paths. When the current downlink path fails, communication between the root node R and the current node A is established, so that the sending and receiving of messages can be guaranteed.

As a preferred embodiment, in step S141, the root node marks a second path as the current downlink path. Specifically, the root node marks the corresponding second path as the current path according to the power parameter of the corresponding device node in each second path and / or uses the frequency. Downward path. Therefore, the marking instruction sent by the root node to the current node is also generated by the root node according to the power parameter and / or the usage frequency of the corresponding device node of each first path.

The power parameter of the device node can reflect the remaining power of the battery in the device node, and the usage frequency of the device node can reflect the frequency of the node device's forwarding data in the Bluetooth network as a relay node. By selecting the current downlink path and the standby downlink path according to the power parameter and / or usage frequency of the corresponding device node in each second path, the frequency of use of multiple second paths can be balanced, so that the battery usage power of the corresponding device node can be balanced, Thereby extending the service life of the entire network and improving the robustness of the entire network.

As shown in the second path R-C-F-K and the second path R-C-G-K in FIG. 1, the device node F and the device node G are corresponding device nodes, and the power parameters of the two device nodes are passed. And / or use the frequency to select the current downlink path and the standby downlink path.

As a preferred embodiment, as shown in FIG. 5, the marking the corresponding second path as the current downlink path according to the power parameter of the corresponding device node in each second path and / or using the frequency specifically includes the following steps:

Step S1411, the root node obtains the power parameter of the corresponding device node in each second path.

As a preferred embodiment, the broadcast packet data information of the Bluetooth low energy device node includes its battery power identifier, that is, the power parameter. In this embodiment, the power parameter is specifically a battery level (BL). For example, if the battery power level is 4, it can indicate that the device node has about 80% of the remaining power; when the battery power level is 0, it can indicate the device node. Less than 10% of power left.

Step S1412, the root node marks the second path with the best power parameter of the corresponding device node as the current downlink path.

For the root node R to the device node K, there are two second paths, R-C-F-K and R-C-G-K. Similarly, for the device node K, there are two first paths to the root node R. For the selection of the two second paths, one path may be selected as the current downlink path and the other as the backup downlink path according to the battery power levels of the device node F and the device node G.

In the case where the BLs of the two relay device nodes F and G are greater than 0, if the BL of the device node F and the device node G are the same, any one of the paths can be selected as the current downlink path, and the remaining one can be used as the backup downlink path.

If the BL of the device node F is greater than the BL of the device node G, the root node R selects the second path through the device node F as the current downlink path, and selects the second path through the device node G as the standby downlink path; that is, R-C is selected —F—K is used as the current downlink path, and R—C—G—K is selected as the standby downlink path. Conversely, if the BL of the device node F is smaller than the BL of the device node G, the root node R selects R-C-G-K as the current downlink path and R-C-F-K as the backup downlink path.

As a preferred embodiment, after the root node obtains the power parameter of the corresponding device node in each second path in step S1411, the method further includes the following steps:

Step S1413: If the power parameter of the corresponding device node in each second path is the same, the root node obtains the frequency of use of the corresponding device node in each second path.

If the BLs of the two relay device nodes F and G are greater than 0, and the BLs of the device node F and the device node G are the same, the corresponding second path may be further marked as the current downlink path by the frequency of use of the corresponding device node.

The usage frequency of the device node can reflect the frequency of the node device's forwarding data in the Bluetooth network as a relay node; the usage frequency can be counted by each device node itself, and then called by the root node, or it can be counted by the root node. If the frequency of use of a certain device node is high, then the use of the second path can be reduced, thereby reducing the frequency that the path occupies the device node, thereby extending the life of the device node.

Step S1414: The root node marks the second path with the lowest frequency used by the corresponding device node as the current downlink path.

A second path through a relay device node that uses a lower frequency is selected as the current downlink path of the root node R and the current node K. If the usage frequency of device node F is 10 times and the usage frequency of device node G is 25 times, R-C-F-K is marked as the current downlink path, and R-C-G-K is selected as the standby downlink path.

Step S142: The root node sends a marking instruction to the current node according to the current downlink path, so that the current node marks the current uplink path and the standby uplink path.

After the root node R marks the current downlink path and the standby downlink path, it sends a marking instruction to the current node K; so that the current node marks the first path corresponding to the current downlink path as the current uplink path, and the first node corresponding to the standby downlink path. A path is marked as a backup uplink path.

As a preferred embodiment, if the second path R-C-F-K is used as the current downlink path, and the second path R-C-G-K is used as the standby downlink path, then the marking instruction may be to indicate that K-F-C- R is a command for marking the current uplink path and marking the other first paths as standby uplink paths.

As a preferred implementation, in this embodiment, after the root node obtains the usage frequency of the corresponding device node in each second path in step S1413, the method further includes the following steps:

Step S1415: If the power parameters of the corresponding device nodes in each of the second paths are the same, and the usage frequency of the corresponding device node in each of the second paths is the same, mark a second path as the current downlink path randomly or according to a preset rule. The preset rule may mark the first second path as the current downlink path.

If there is more than one path between the root node R and the current node K, and these paths have the same number of hops, then the root node R will be based on the battery power level and frequency of use of these relay device nodes that pass to the current node K. , Select one routing table path as the current downlink path, and the rest as standby downlink paths; and set the corresponding first path in the current node K as the current uplink path and the standby uplink path, respectively. If the battery power levels of the corresponding relay device nodes are not all zero, a path passing through the relay device node with a higher battery power level is selected as the current downlink path from the root node R to the device node K. If the battery power levels of the corresponding relay device nodes are equal, the path through the relay device node with the lowest frequency is selected as the current downlink path from the root node R to the device node K; the relay device node with the lower frequency is selected. The path is the backup downlink path from the root node R to the device node K. If the battery power levels of the corresponding relay nodes in each of the second paths are the same and the frequency of use is the same, the current downlink path and the backup downlink path from the root node R to the device node K are selected randomly or according to a preset rule.

As a further improvement of the embodiment of the present invention, when the device node K sends information to the root node R, it is detected whether the current uplink path and the backup uplink path are marked, and if so, communicate through the current uplink path, and then use the current uplink path frequency Increase by one and synchronize the use frequency of the corresponding current downlink path in the root node R by one. When the root node R sends information to the device node K, it is detected whether the current downlink path and the standby downlink path are marked. The downlink path communicates, and then the current frequency of the current downlink path is increased by one, and the corresponding frequency of the current current uplink path in the device node K is increased by one; to keep the current uplink path and the frequency of the current downlink path synchronized and accumulated, that is, the current How often the path is used.

In the embodiment of the present invention, each path may be set as the current path in turn according to the actual usage. Therefore, the standby uplink path and the standby downlink path are the current uplink path and the current downlink path in some periods, so the synchronization accumulation using frequency is also performed. , That is, the frequency of use of the backup path is equal to the frequency of use of the backup downlink path.

In the embodiment of the present invention, the root node R and the device node K will dynamically optimize the current path and the backup according to the use frequency of the current path and the use frequency of the backup path and the remaining battery power levels of the relay device nodes such as the device nodes G and F. How often the path is used. Therefore, in this embodiment, the Bluetooth low energy networking method further includes the following steps:

After a preset time period or when the switching conditions are met, the root node marks the current downlink path as a new standby downlink path, and marks the corresponding standby downlink path as the current downlink path; and changes the corresponding standby uplink path, current Mark of the upstream path.

By regularly switching or switching the current downlink path and the standby downlink path when the conditions are met, that is, the second paths are used in turn to dynamically optimize the frequency of using the current downlink path, the standby downlink path, and the corresponding frequency of the current uplink path, the standby uplink path, and balance each The power of the device node in the second path, thereby extending the battery life of the related device node.

As a preferred embodiment, when the switching condition is fulfilled, marking the current downlink path as a new standby downlink path and marking the corresponding standby downlink path as a current downlink path specifically includes the following steps:

Step S143: The root node marks the current downlink path as a new standby downlink path according to the frequency of use of the current downlink path and the standby downlink path and / or a power parameter of a corresponding device node in the current downlink path and the standby downlink path. And mark the corresponding standby downlink path as the current downlink path.

With the operation of the Bluetooth network, the power of device nodes in each path will change; if the power parameter of the corresponding device node in the current downlink path is worse than the power parameter of the corresponding device node in the standby downlink path, the current downlink path and standby Downlink path; that is, the second path with the best power parameter of the corresponding device node is marked as the current downlink path; in order to dynamically optimize the frequency of use of the current downlink path, standby downlink path, and corresponding current uplink path, standby uplink path.

As a preferred embodiment, step S143 further includes the following steps:

Step S1431: Synchronize the use frequency of the current downlink path with the current node.

For each successful communication between the root node R and the current node K, the frequency of use of the current downlink path and the corresponding current uplink path increases by 1, and the root node R and the device node K record this frequency of use simultaneously.

Step S1432, if the power parameter parameters of the corresponding equipment nodes in the current downlink path and the standby downlink path are the same, and the frequency at which the current node and the root node use the current downlink path to communicate is subtracted from the communication using the corresponding standby downlink path If the frequency difference is greater than a preset threshold, the current downlink path is marked as a new standby downlink path, and the corresponding standby downlink path is marked as a current downlink path.

If the current downlink path, that is, the frequency of use of the current path exceeds the backup downlink path, that is, the preset number of times of use of the backup path, such as 100 times, although the remaining battery power levels of the relay device nodes G and F are equal at this time In order to balance the usage frequency of the current downlink path and the standby downlink path, it is necessary to change the current path into a new standby path and change a corresponding standby path into a new current path, that is, to mark the current downlink path as a new standby path. A downlink path, and marking the corresponding standby downlink path as a current downlink path.

Step S1433: Send a new marking instruction to the current node, so that the current node relabels the current uplink path and the standby uplink path, and when the current node sends information to the root node, send it through the current uplink path.

The status of the current path and the standby path changes. The communication between the root node R and the current node K selects a new current path for communication. After each successful communication, the frequency of use of the new current path increases by 1. The root node R and the current node K At the same time, record the current path, that is, the frequency of use of the new current downlink path.

As a preferred embodiment, step S143 further includes the following steps:

Step S1434: If the power parameter flags of the corresponding device nodes in the current downlink path and the standby downlink path are the same, and the frequency at which the current node and the root node use the current downlink path to communicate with those using the corresponding standby downlink path If the frequencies are equal, then the usage frequency of the current downlink path and the standby downlink path is cleared.

When the power parameter parameters of the corresponding equipment nodes in the current downlink path and the standby downlink path are the same, and the frequency at which the current node and the root node communicate with the current downlink path is equal to the frequency with which the corresponding standby downlink path communicates, it indicates that the current The conditions of the downlink path and the standby downlink path are the same, and the usage frequency that has been counted can be cleared; and the usage frequency of the current uplink path and the standby uplink path counted by the current node side are cleared to facilitate subsequent current downlink paths and standby downlink paths. Dynamic optimization of tags.

Step S150: If a power parameter of a device node is lower than a preset threshold, send a low battery notification to a user terminal connected to the root node or the device node.

The root node R can obtain the power parameters of each device node in the Bluetooth network, and the root node can communicate with the user terminal through an external network, such as Wi-Fi or Enternet. In addition, the user terminal can also establish a Bluetooth connection with each device node, so When the power parameter of a device node is lower than a preset threshold, a low battery notification is sent to the user terminal through the root node or the device node to prompt the user to replace the battery of the related device node.

It can be known from the description of the foregoing embodiments that those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary universal hardware platform. Based on such an understanding, the technical solution of the present invention in essence or a part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk , Optical discs, etc., including a number of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention or certain parts of the embodiments, such as:

A storage medium storing a computer program that, when executed by a processor, implements the steps of the aforementioned Bluetooth low energy networking method applied to a root node and / or a current node.

The invention can be used in many general-purpose or special-purpose computing system environments or configurations. For example: personal computer, server computer, handheld or portable device, tablet device, multi-processor system, microprocessor-based system, set-top box, programmable consumer electronics device, network PC, small computer, mainframe computer, including the above The distributed computing environment of any system or device, etc., as in the second embodiment.

Example two

The electronic device shown in FIG. 6 includes a memory 200, a processor 300, and a program stored in the memory 200. The program is configured to be executed by the processor 300. When the processor 300 executes the program, the foregoing application to the root device is implemented. The steps of the method for networking the low energy Bluetooth of the node and / or the current node.

The aforementioned electronic device can be used as a root node or a current node in a Bluetooth network, so that the aforementioned low-power Bluetooth networking method is applied to a Bluetooth network. Therefore, an embodiment of the present invention further provides a low-power Bluetooth network, including at least one electronic device, such as a root node, to which the foregoing root node low-power Bluetooth networking method is applied; and at least one current node, that is, to apply the foregoing current Electronic device of node low-power Bluetooth networking method.

The electronic device in this embodiment, the Bluetooth low energy network, and the method in the foregoing embodiment are based on two aspects under the same inventive concept. The method implementation process has been described in detail above, so those skilled in the art can According to the foregoing description, the structure and implementation process of the electronic device and the Bluetooth low energy network in this implementation are clearly understood. For brevity of the description, the details will not be repeated here.

In the electronic device and the Bluetooth low energy network provided by the embodiment of the present invention, when there are multiple paths between the current node and the root node, one path is marked as the current path, and the rest are standby paths. Therefore, the current node and the root node When communicating, the root node communicates with the current node through the current path, and when the current path fails, etc., the communication between the root node and the current node is established through the backup path, thereby ensuring the success rate of message transmission and reception.

The foregoing embodiments are merely preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited by this. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the present invention. Claimed scope.

Claims

The low-power Bluetooth networking method is characterized in that it includes the following steps:

Scan for device nodes within communication range;

Obtaining routing information from a device node within the communication range;

Generating a first path according to the routing information of the device node, where the first path is specifically a path from the current node to the root node through the corresponding device node;

When the number of the first paths is more than one, a first path is marked as a current uplink path, and the remaining first paths are marked as standby uplink paths.
The method of claim 1, wherein when the number of the first paths is more than one, marking one first path as a current uplink path and marking the remaining first paths as Before the backup uplink path, the following steps are also included:

If the first path is generated, sending an access notification to the root node according to the first path;

If the authorization of the root node is obtained, the first path is saved.
The low-power Bluetooth networking method according to claim 1, wherein the routing information includes a hop value of a corresponding device node;

The generating a first path according to the routing information of the device node specifically includes the following steps:

If the hop value of the device node meets the access condition, a first path is generated according to the routing information of the device node.
The low-power Bluetooth networking method according to claim 3, wherein the hop value of the device node satisfies an access condition, specifically:

The hop value of the device node is not greater than the hop values of other device nodes in the communication range.
The low-power Bluetooth networking method according to claim 1, wherein the marking a first path as a current uplink path is specifically:

Mark the corresponding first path as the current uplink path according to the marking instruction obtained from the root node.
The low-power Bluetooth networking method according to claim 5, wherein the marking instruction is specifically generated by the root node according to a power parameter and / or a usage frequency of a corresponding device node of each first path.
The method of claim 1, wherein after marking a first path as a current uplink path and marking the remaining first paths as standby uplink paths, the method further comprises the following steps:

If communication with the root node fails through the current uplink path, communicate with the root node through the standby uplink path.
The low-power Bluetooth networking method is characterized in that it includes the following steps:

Obtaining an access notification from the current node, where the access notification is sent by the current node according to the first path;

Generating a second path according to a path that the current node sends the access notification; the second path is specifically a path from a root node to the current node through a corresponding device node;

One second path is marked as the current downlink path, and the remaining second paths are standby downlink paths.
The Bluetooth low energy networking method according to claim 8, wherein after marking one second path as a current downlink path and the remaining second paths as standby downlink paths, the method further comprises the following steps:

If communication with the current node fails through the current downlink path, communicate with the current node through the standby downlink path.
The method of claim 8, wherein after marking a second path as a current downlink path and the remaining second paths as standby downlink paths, the method further comprises the following steps: after the preset duration Or when the handover condition is fulfilled, marking the current downlink path as a new standby downlink path, and marking the corresponding standby downlink path as the current downlink path.
The method of claim 8, wherein after marking a second path as a current downlink path and the remaining second paths as standby downlink paths, the method further comprises the following steps:

Sending a marking instruction to the current node according to the current downlink path, so that the current node marks the current uplink path and the standby uplink path.
The method according to claim 11, wherein the step of generating a second path according to a path in which the current node sends the access notification specifically includes the following steps:

If the access notification of the current node is agreed, generating a second path according to a path in which the current node sends the access notification;

Sending an authorization instruction to the current node according to the second path.
The Bluetooth low energy networking method according to claim 8, wherein the marking a second path as a current downlink path is specifically:

Mark the corresponding second path as the current downlink path according to the power parameter of the corresponding device node in each second path and / or use frequency.
The low-power Bluetooth networking method according to claim 13, characterized in that: the corresponding second path is marked as a current downlink path according to a power parameter of a corresponding device node in each second path and / or a frequency is used, specifically It includes the following steps:

Obtaining power parameters of corresponding device nodes in each second path;

The second path marked with the optimal power parameter of the corresponding device node is the current downlink path.
The method according to claim 14, wherein after obtaining the power parameter of a corresponding device node in each second path, the method further comprises the following steps:

If the power parameters of the corresponding device nodes in each second path are the same, obtaining the usage frequency of the corresponding device node in each second path;

The second path with the lowest frequency used by the corresponding device node is marked as the current downlink path.
The Bluetooth low energy networking method according to claim 10, characterized in that when the switching condition is fulfilled, marking the current downlink path as a new standby downlink path, and marking the corresponding standby downlink path as the current downlink path , Including the following steps:

Marking the current downlink path as a new standby downlink path according to the frequency of use of the current downlink path and the standby downlink path and / or power parameters of corresponding device nodes in the current downlink path and the standby downlink path, and marking the corresponding standby The downlink path is the current downlink path.
The Bluetooth low energy networking method according to claim 16, characterized in that: according to the frequency of use of the current downlink path and the standby downlink path and / or corresponding device nodes in the current downlink path and the standby downlink path The power parameter marks the current downlink path as a new standby downlink path, and specifically includes the following steps:

Synchronize the frequency of use of the current downlink path with the current node;

If the power parameter flags of the corresponding device nodes in the current downlink path and the standby downlink path are the same, and the frequency at which the current node and the root node communicate with the current downlink path minus the frequency at which the corresponding standby downlink path communicates If the difference is greater than a preset threshold, marking the current downlink path as a new standby downlink path, and marking the corresponding standby downlink path as a current downlink path;

Send a new marking instruction to the current node.
The low-power Bluetooth networking method according to claim 17, characterized in that according to the frequency of use of the current downlink path and the standby downlink path and / or the power of corresponding device nodes in the current downlink path and the standby downlink path The parameter marks the current downlink path as a new standby downlink path, and marks the corresponding standby downlink path as the current downlink path, and further includes the following steps:

If the power parameter flags of the corresponding device nodes in the current downlink path and the standby downlink path are the same, and the frequency with which the current node and the root node communicate using the current downlink path is equal to the frequency with which the corresponding standby downlink path communicates, Then, the usage frequency of the current downlink path and the standby downlink path is cleared.
The method according to claim 14, wherein after obtaining the power parameter of a corresponding device node in each second path, the method further comprises the following steps:

If a power parameter of a device node is lower than a preset threshold, a low power notification is sent to a user terminal connected to the root node or the device node.
The electronic device is characterized in that it includes a memory, a processor, and a program stored in the memory. The program is configured to be executed by a processor. When the processor executes the program, the device is implemented according to any one of claims 1-7. The steps of the Bluetooth low energy networking method described above.
An electronic device, comprising: a memory, a processor, and a program stored in the memory, the program is configured to be executed by a processor, and when the processor executes the program, the device is implemented according to any one of claims 8-19 The steps of the Bluetooth low energy networking method described above.
The Bluetooth low energy network comprises at least one electronic device according to claim 20 and at least one electronic device according to claim 21.
A storage medium storing a computer program, which is characterized in that the computer program is implemented when executed by a processor:

The steps of the Bluetooth low energy networking method according to any one of claims 1-7; or

The steps of the Bluetooth low energy networking method according to any one of claims 8-19.