TWI599200B - A method of implementing network node control - Google Patents

Description

Method for realizing network node control

The present invention generally relates to the field of communications and the field of Internet of Things, and more particularly to a method of implementing network node control.

For products in the smart home field, certain preset actions can be automatically completed by external factors or internal pre-set conditions, which is a necessary function. However, traditionally, this feature was not expected to be completed in many scenarios. For example, when the controlled node is powered off, the master node performs the release device (clearing code) operation, and the controlled node cannot receive the corresponding message due to the operation of the master node to release the device (clear code). (cleared), thus making it difficult to re-enter the network after the controlled node. In addition, in order to seize the market, companies tend to consider low-cost hardware in smart home products. Therefore, how to easily and efficiently complete preset actions on such hardware resources is a problem for developers. problem.

According to an aspect of the present invention, a method for implementing network node control is provided, the method comprising: the master node transmitting a first counter value to the controlled node when the controlled node accesses the network of the master node, The first counter value indicates the number of times the preset action is performed until the controlled node accesses the network of the master node; the controlled node receives the first counter value sent from the master node; the master node receives the predetermined time interval The control node sends a counter value updated according to the execution of the preset action; the controlled node receives the updated counter value sent from the master node; the controlled node compares the received first counter value with the updated counter value, and Perform the corresponding action based on the comparison result.

According to another aspect of the present invention, a method for implementing network node control is provided, the method comprising: the master node is to be the first one when the controlled node accesses the network of the master node The value of the counter is sent to the controlled node, and the first counter value indicates the number of times the preset action is executed until the controlled node accesses the network of the master node; the master node sends the preset node to the controlled node according to the preset time interval. A counter value updated by execution of the action, wherein the controlled node compares the first counter value received from the master node with the updated counter value, thereby performing a corresponding action based on the comparison result.

According to another aspect of the present invention, a method for implementing network node control is provided, the method comprising: receiving, by a controlled node, a first counter value from a master node when accessing a network of a master node, wherein The counter value indicates the number of times the preset action is performed until the controlled node accesses the network of the master node; the controlled node receives the counter value updated according to the execution of the preset action from the master node at predetermined time intervals; The control node compares the first counter value received from the master node with the updated counter value, thereby performing a corresponding action according to the comparison result.

The method proposed by the present invention is simple and efficient, and thus is particularly suitable for low cost equipment. In addition, the method proposed by the present invention can implement network node control, for example, enabling a network node to self-recover or automatically perform certain preset actions, and thus has an intelligent feature. Details of one or more embodiments of the invention are set forth in the accompanying drawings and description. Other features, objects, and advantages of the invention will be apparent from the description and appended claims.

A‧‧‧ node (master node)

N1‧‧‧ first counter value

B, C, D, E, F, G‧‧‧ nodes (controlled nodes)

N2‧‧‧ second counter value

100‧‧‧ star network

200‧‧‧ Tree Network

300‧‧‧Wireless mesh network

400, 700, 800‧‧‧ methods for implementing network node control

401, 402, 403, 404, 405, 501, 502, 601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 701, 702, 703, 801, 802, 803, 804, 805‧‧‧Steps

The present invention can be better understood by the following description of embodiments of the invention, in which: FIG. 1 shows a schematic diagram of a star network in which the present invention may be implemented in accordance with an embodiment of the present invention. 2 is a schematic diagram showing a tree network in which the present invention can be implemented according to an embodiment of the present invention; and FIG. 3 is a view showing an embodiment in which the present invention can be implemented according to an embodiment of the present invention. Schematic diagram of a wireless mesh network; FIG. 4 is a flow chart showing a method for implementing network node control according to an embodiment of the present invention; FIG. 5 is a view showing an embodiment of the present invention The master node side is used to implement the network A flowchart of a method of node control; FIG. 6 is a flow chart showing a method for implementing network node control on a master node side according to an embodiment of the present invention; and FIG. 7 is a view showing a method according to the present invention. A flowchart of a method for implementing network node control on a controlled node side of an embodiment; and FIG. 8 illustrates a network node control for implementing network node control on a controlled node side according to an embodiment of the present invention Flow chart of the method.

Features and exemplary embodiments of various aspects of the invention are described in detail below. The following description covers many specific details in order to provide a However, it will be apparent to those skilled in the art that the present invention may be practiced without some of these details. The following description of the embodiments is merely intended to provide a further understanding of the invention. The present invention is in no way limited to any specific configuration, which is set forth below, but without departing from the spirit and scope of the invention.

The present invention is applicable to various networks such as a star network, a tree network, a wireless mesh network, and the like. The star network, the tree network, and the wireless mesh network are described below with reference to FIG. 1, FIG. 2, and FIG. 3, respectively.

The present invention is applicable to various networks such as a star network, a tree network, a wireless mesh network, and the like. The star network, the tree network, and the wireless mesh network are described below with reference to FIG. 1, FIG. 2, and FIG. 3, respectively.

Figure 1 shows a schematic diagram of a star network 100 in which the present invention may be implemented in accordance with one embodiment of the present invention. A star network is a centralized control network. As shown in Figure 1, node A is the central node of the star network and acts as the master node. Nodes B, C, D, E, F, and G are all controlled nodes. The master node A can directly control the controlled nodes B, C, D, E, F, G, and the controlled nodes B, C, D, E, F, G can perform corresponding actions according to the control of the master node A. . In the star network 100, the status of the controlled nodes B, C, D, E, F, G in the network can be The same is true, but they can receive the same or different control commands from the master node A to perform the same or different actions.

Figure 2 shows a schematic diagram of a tree network 200 in which the present invention may be implemented in accordance with one embodiment of the present invention. A tree network is a hierarchical centralized control network. As shown in Fig. 2, node A is the central node of the tree network and can be used as the master node. Nodes B and C are at different levels from nodes D, E, F, and G. In one aspect, as shown in FIG. 2, nodes B, C may act as controlled nodes with respect to node A, while in another aspect, nodes B, C may be relative to lower-level nodes D, E, F, G. As the master node. Therefore, in FIG. 2, the master node A can directly control the nodes B and C, and the nodes B and C can perform corresponding actions according to the control of the master node A. In addition, the nodes B and C can respectively control the nodes D, E, F, and G, and the nodes D, E, and F, and G can perform corresponding actions according to the control of the nodes B and C, respectively. It should be noted that in FIG. 2, although nodes D, E, F, and G are controlled by nodes B and C, respectively, they are all indirectly controlled by the master node A.

Figure 3 shows a schematic diagram of a wireless mesh network 300 in which the present invention may be implemented in accordance with one embodiment of the present invention. A wireless mesh network is a wireless multi-hop network. As shown in FIG. 3, node A is the central node of the wireless mesh network and can be used as a master node. Nodes B, C, and G can communicate directly with the master node A. Thus, the master node A can directly control the nodes B, C, and G; the nodes D, E, and F can indirectly communicate with the nodes B, C, and G. The master node A communicates, and thus, the master node A can indirectly control the nodes D, E, and F. In addition, as shown in FIG. 3, all nodes in the wireless mesh network can communicate directly or indirectly, and control of one node to another node can be implemented in one or more manners, and a fault occurs in a certain node. In this case, an alternative path can be used to achieve control. For example, for node E, master node A can directly control the node via node C, or master node A can pass nodes G and F or G and C (A→G→F→E; A→G→C →E) to control node E, or alternatively, master node A can control node E via nodes G, C, B, and D (A→G→C→B→D→E). Thus, even if the node C fails, the master node A can control the node E by, for example, A→G→F→E.

The above first to third figures are merely examples of application scenarios of the present invention. The application scenario of the present invention is not limited to the network topology shown in the above FIG. 1, FIG. 2, and FIG. 3, and the access section The number of points is also not limited to the numbers shown in Figs. 1, 2, and 3, and the present invention can be applied to any network having any suitable number of nodes.

Figure 4 illustrates a flow diagram of a method 400 for implementing network node control in accordance with one embodiment of the present invention.

As shown in FIG. 4, the method 400 for implementing network node control may include the following steps: Step 401: The master node sends a first counter value to the received node when the controlled node accesses the network of the master node. The control node, the first counter value indicates the number of times the preset action is performed until the controlled node accesses the network of the master node; step 402: the controlled node receives the first counter value sent from the master node; step 403: The master node transmits the counter value updated according to the execution of the preset action to the controlled node at a predetermined time interval; step 404: the controlled node receives the updated counter value sent from the master node; step 405: the controlled node will receive The first counter value that is reached is compared with the updated counter value, thereby performing a corresponding action based on the comparison result.

In one embodiment, the master node may send the updated counter value to the controlled node by sending a packet containing the updated counter value to the controlled node.

In one embodiment, the number of controlled nodes may be multiple, and wherein the master node may separately send the associated updated counter value to the controlled node by unicast.

In one embodiment, the number of controlled nodes may be multiple, and wherein the master node may send the associated updated counter value to the plurality of controlled nodes by broadcast.

In one embodiment, the number of controlled nodes may be multiple, and wherein the master node may send the associated updated counter value to the plurality of controlled nodes in a multicast manner.

In one embodiment, the preset action may include releasing the network address of the controlled node and the operation of the connection.

In one embodiment, the preset action may include powering up or powering down the controlled node Operation.

According to the method described in FIG. 4, network node control can be implemented, for example, such that the network node performs self-recovery or automatically performs certain preset actions. In addition, the above method is simple and efficient, and thus is particularly suitable for low-cost devices.

The method for implementing network node control according to the present invention will be described in more detail below with reference to Figures 5-8, respectively, from the master node and the controlled node side.

Figure 5 illustrates a flow diagram of a method 500 for implementing network node control on a master node side, in accordance with one embodiment of the present invention.

As shown in FIG. 5, the method 500 for implementing network node control on the master node side according to an embodiment of the present invention may include the following steps: As shown in FIG. 5, according to an embodiment of the present invention, The method 500 for implementing network node control on the master node side may include the following steps: Step 501: The master node sends the first counter value to the network when the controlled node accesses the network of the master node a controlled node, the first counter value indicating a number of times the preset action is performed until the controlled node accesses the network of the master node; step 502: the master node is at a predetermined time interval The controlled node transmits a counter value that is updated according to execution of a preset action.

Thus, since the master node provides the controlled node with the counter value when the controlled node accesses the network of the master node and the updated counter value sent at the predetermined time interval, the controlled node will be able to Compare the results to perform the corresponding action.

The method for implementing network node control on the master node side will be described in more detail below with reference to FIG.

Figure 6 shows a flow diagram of a method 600 for implementing network node control on the master node side, in accordance with one embodiment of the present invention.

As shown in FIG. 6, in step 601, the master node is powered on. In step 602, the master node obtains an initial counter value, which may indicate the number of times the preset action is performed before the master node was powered down. In one embodiment, the initial counter value may be stored in a storage device of the master node. In one embodiment, the storage device can be a non-volatile storage medium such as a flash memory. In one embodiment, the preset action may be to release the controlled node The network address and the operation of the connection, that is, the clearing operation. However, those skilled in the art can envision that the preset action here may be any possible operation in the Internet of Things, for example, an operation to enable the device to be powered on or an operation to enable the device to be powered down. It should be understood that the counter that counts the counter value may be integrated with the master node or independent of the master node, and each time the preset action is performed, the counter value is arithmetically operated, for example, the counter value is incremented or decremented. .

Next, in step 603, the master node starts a timer and sets the timing T. The timer can be used by the master node for timing to subsequently send updated counter values to the controlled node at predetermined time intervals, as will be described in more detail below. Thereafter, the method continues, once the preset action is performed, the counter value is changed, and the counter value is updated accordingly to the memory of the master node, as shown in steps 604-606. Of course, if no preset action is performed, the counter value does not change and update. After that, when the master node finds that the controlled node accesses the network of the master node, that is, the determination in step 607 is “YES”, the master node will indicate that the controlled node accesses the network of the master node. The counter value, the first counter value N1, is sent to the controlled node as shown in step 608.

Next, the master node determines in step 609 whether the timing T has expired. If the timing T has not expired, the master node still updates the counter value according to the execution of the preset action, and when the timing T expires, the latest updated counter value, ie the second counter value N2, is sent in step 610. Give the controlled node. If the master node determines in step 609 that the timing T has expired, the master node directly transmits the currently updated counter value, that is, the second counter value N2, to the controlled node. In one embodiment, the master node may notify the controlled node of the counter value by including the counter value in a data packet such as a heartbeat packet. In one embodiment, when the number of controlled nodes may be multiple, the master node may separately send the associated counter value to the controlled node by unicast. In one embodiment, when the number of controlled nodes may be multiple, the master node may send the associated counter value to the plurality of controlled nodes by broadcast. In one embodiment, when the number of controlled nodes may be multiple, the master node may send an associated counter value to the plurality of controlled nodes in a multicast manner.

In one embodiment, the number of times the preset action is performed may be different when different controlled nodes access the network of the master node, so the first counter value for different controlled nodes may also be different. In yet another embodiment, the second count for different controlled nodes The values can be different. For example, in the unicast mode, the master node performs an action of releasing the network address and connection of one of the controlled nodes, then the second counter value for the controlled node will change, and other controlled nodes The second counter value may not change. The situation of multicast and broadcast is similar to the case of unicast.

Next, in step 611, the master node resets the timing T for updating the counter value according to the execution of the preset action and transmitting the counter value to the controlled node at the next time interval.

According to the method described in FIG. 6, the active node sends the counter value of the preset action to the controlled node when the controlled node accesses the network of the master node, and sends the latest update to the controlled node at predetermined time intervals. The counter value, so that the controlled node takes the corresponding action based on the comparison of these counter values. In addition, as described above, the updated counter value for the controlled node may not change compared to the previous counter value, at which point the controlled node does not perform any action.

Figure 7 shows a flow diagram of a method 700 for implementing network node control on a controlled node side, in accordance with one embodiment of the present invention.

As shown in FIG. 7, the method 700 for implementing network node control on the controlled node side includes the following steps: Step 701: The controlled node accesses the network of the master node from the master node. Receiving a first counter value, wherein the first counter value indicates a number of times a preset action is performed until the controlled node accesses a network of the master node; step 702: the controlled node is scheduled a time interval from the master node receiving a counter value updated according to execution of a preset action; and step 703: the controlled node receiving the first counter value from the master node and the updated The counter values are compared to perform the corresponding action based on the comparison result.

As such, the controlled node receives the counter value indicating the number of times the preset action is performed when accessing the network of the master node from the master node, and the latest updated counter value received at the predetermined time interval interval, the controlled node The corresponding action can be taken based on the comparison of these counter values.

The method for implementing network node control on the controlled node side will be described in more detail below with reference to FIG.

Figure 8 illustrates a flow diagram of a method 800 for implementing network node control on a controlled node side, in accordance with one embodiment of the present invention.

In step 801, the controlled node is powered on, and then accesses the network of the master node. In step 802, the controlled node may receive the first counter value N1 sent by the master node at this time indicating the number of times the preset action is performed after power-on. In one embodiment, the first counter value N1 may be saved to the storage device of the controlled node itself. In one embodiment, the first counter value N1 may also be stored in a separate storage device separate from the controlled node.

Thereafter, in step 803, the controlled node receives the updated counter value transmitted from the master node at a predetermined time interval, that is, the second counter value N2. Similarly, the second counter value N2 can also be saved to the storage device of the controlled node itself or stored in a separate storage device separate from the controlled node. It should be understood that the second counter value N2 is always updated at different time intervals.

Next, in step 804, the controlled node compares the received counter value N1 with the counter value N2 to perform a corresponding action based on the comparison result.

In one embodiment, if the counter value N1 is equal to the counter value N2, the controlled node performs the first action, otherwise the controlled node performs the second action, as shown in steps 805 and 806, respectively. In one embodiment, the first action may be that the controlled node does not perform any action. In one embodiment, the second action may be a network in which the controlled node exits the master node. In another embodiment, the second action may be that the controlled node exits the network of the master node and restores the factory settings. In still another embodiment, the second action may be that the controlled node changes its operating state, for example, when the controlled node is a lighting device such as a Light Emitting Diode (LED) or contains such a lighting device, the lighting device At this point you can switch its lighting color or adjust its lighting brightness.

In an embodiment, the controlled node may also perform different actions according to the magnitude of the difference between the received first counter value N1 and the second counter value N2. In the example of the LED lamp mentioned above, if the difference is within the first difference range, the LED light can be switched to the first color, for example, red, and when the difference is within the second difference range, The LED light can be switched to a second color, for example, green. However, it should be understood that more ranges can be set for the difference to facilitate, for example, Finer adjustment of the color and brightness of the lighting device, for example.

As such, the controlled node receives the counter value indicating the number of times the preset action is performed when accessing the network of the master node from the master node, and the latest updated counter value received at the predetermined time interval interval, the controlled node The corresponding action can be taken based on the comparison of these counter values. It should be noted that the predetermined time interval at which the controlled node receives the updated counter value actually depends on the predetermined time interval at which the master node sends the updated counter value to the controlled node. It should be understood that the predetermined time interval is not specifically limited, but that a person of ordinary skill in the art can set an appropriate specific predetermined time interval in accordance with the teachings of the present invention.

As described above, a method for implementing network node control in accordance with the present invention is described. According to the invention of the present invention, it is possible to cause the network node to self-recover or automatically perform some preset actions. Furthermore, the method proposed by the present invention is simple and efficient, and thus is particularly suitable for low cost equipment. It should be understood that in the above description, "the network in which the controlled node accesses the master node" may include networking and network access and other situations.

"One embodiment" is mentioned above, however, it should be understood that the features mentioned in the various embodiments are not necessarily applicable to the embodiment, but may be used in other embodiments or in combination with other embodiments.

The above-mentioned "first", "second" and other ordinal numbers are mentioned, however, it should be understood that these expressions are merely for convenience of description and citation, and the defined objects do not have a sequential relationship.

The present invention has been described above with reference to the specific embodiments of the present invention, but those skilled in the art understand that the implementation methods mentioned herein are all claims of the present invention, and the specific embodiments listed are only the application examples of the present invention. The present invention is not limited to such an application example, and various modifications, combinations and changes may be made to the specific embodiments without departing from the spirit and scope of the invention as defined by the appended claims.

401, 402, 403, 404, 405 ‧ ‧ steps

Claims (12)

A method for implementing network node control, the method comprising: a master node transmitting a first counter value to the controlled node when the controlled node accesses a network of the master node, the first The counter value indicates the number of times the preset action is performed until the controlled node accesses the network of the master node; the controlled node receives the first counter value sent from the master node; Depressing, by the master node, a counter value updated according to execution of the preset action to the controlled node at a predetermined time interval; the controlled node receiving the updated counter value sent from the master node; The controlled node compares the received first counter value with the updated counter value to perform a corresponding action according to the comparison result; the preset action includes releasing a network address of the controlled node And the operation of the connection. The method of claim 1, wherein the master node transmits the updated counter value to the controlled node by transmitting a data packet including the updated counter value to the controlled node. . The method of claim 1, wherein the number of the controlled nodes is plural, and wherein the master node sends the associated node to the controlled node in one of the following manners. Updated counter value: unicast mode, multicast mode, or broadcast mode. The method of claim 1, wherein the preset action comprises an operation of powering on or off the controlled device. A method for implementing network node control, the method comprising: a master node transmitting a first counter value to the controlled node when the controlled node accesses a network of the master node, the first The counter value indicates the number of times the preset action is performed until the controlled node accesses the network of the master node; the master node sends the preset node according to the preset action at a predetermined time interval And a counter value updated, wherein the controlled node compares the first counter value received from the master node with an updated counter value, thereby performing a corresponding action according to the comparison result; the preset action This includes the operation of releasing the network address and connection of the controlled node. The method of claim 5, wherein the master node transmits the updated counter value to the controlled node by transmitting a data packet including the updated counter value to the controlled node. . The method of claim 5, wherein the number of the controlled nodes is plural, and wherein the master node sends the associated node to the controlled node in one of the following manners. Updated counter value: unicast mode, multicast mode, or broadcast mode. The method of claim 5, wherein the preset action comprises an operation of powering on or off the controlled node. A method for implementing network node control, the method comprising: receiving, by a controlled node, a first counter value from the master node when accessing a network of the master node, wherein the first counter value indication a number of times the preset action is performed until the controlled node accesses the network of the master node; the controlled node receives from the master node at a predetermined time interval according to execution of the preset action An updated counter value; and the controlled node compares the first counter value received from the master node with the updated counter value to perform a corresponding action according to the comparison result; the preset action includes The operation of releasing the network address and connection of the controlled node. The method of claim 9, wherein the controlled node receives the updated counter value by a data packet from the master node that includes the updated counter value. The method of claim 9, wherein the controlled node is one of a plurality of controlled nodes, and wherein the updated counter value is from the master in one of the following manners The node sends to the controlled node: unicast mode, multicast mode, or broadcast mode. The method of claim 9, wherein the preset action comprises an operation of powering on or off the controlled device.