CN114237111A - Equipment stability control method and system based on Bluetooth MESH protocol - Google Patents
Equipment stability control method and system based on Bluetooth MESH protocol Download PDFInfo
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- CN114237111A CN114237111A CN202111525013.7A CN202111525013A CN114237111A CN 114237111 A CN114237111 A CN 114237111A CN 202111525013 A CN202111525013 A CN 202111525013A CN 114237111 A CN114237111 A CN 114237111A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
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- G05B2219/23051—Remote control, enter program remote, detachable programmer
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Abstract
The invention discloses a method and a system for controlling the stability of equipment based on a Bluetooth MESH protocol, wherein the method comprises the following steps: networking equipment; the method comprises the following steps that a gateway is utilized to carry out distribution network operation on node equipment and switch equipment to form an MESH network, and the distribution network process is carried out by using a standard Bluetooth MESH protocol distribution network flow; the equipment forms a communication network in a subscription-publishing mode; the gateway, the switch equipment and the node equipment form a subscription-publishing mode by using a subscription-publishing command in a Bluetooth MESH protocol; and after the switching equipment controls the node equipment, judging whether to retransmit the message by the gateway, and if the gateway judges that the switching equipment does not successfully control the node equipment, sending a control instruction to the node equipment by the gateway. The invention uses the distribution network end with stronger computing power to retransmit the message, can know the control intention and ensures the control correctness. The control of the lighting switch to the lamp is guaranteed, the reliability and stability of communication are improved, and user experience is improved.
Description
Technical Field
The invention relates to the technical field of Bluetooth MESH, in particular to a method and a system for controlling the stability of equipment based on a Bluetooth MESH protocol.
Background
With the rise of smart homes, how to ensure the reliability control of smart home devices becomes a key point of concern for people. At present, when lighting switch equipment based on a Bluetooth MESH protocol is manufactured, the situation that the lighting switch equipment is prone to packet loss due to environmental interference and lamp control fails is found when the lighting switch equipment sends a lamp control command through the Bluetooth MESH protocol. Especially when a group of light devices needs to be controlled, it is more likely that the light devices in the group fail to be controlled due to an over-the-air packet loss.
In order to improve the reliability of communication, it is considered to introduce a retransmission mechanism, and retransmit the control message after packet loss is found. A retransmission mechanism for message distribution is proposed in CN111247817A "method and BLE device for message distribution", which proposes: firstly, a distribution end acquires subscription information of a first distribution address from a distribution network end, then distributes the information, and finally judges whether the number of response messages of the subscription end is retransmitted or not. Although the method proposes a message retransmission mechanism, the correctness of the retransmitted message is not considered. Taking the example of lamp switching on, if the message retransmission is performed according to the switching instruction proposed in patent CN111247817A, a state in which some lamps are turned on and some lamps are turned off still occurs, and a state in which a group of lamps are turned on cannot be achieved. In addition, the method provides that the message retransmission is carried out at the issuing end, and the condition that the message retransmission cannot be finished if the issuing end is a low-power consumption node or a node with limited computing resource capacity is not considered.
Disclosure of Invention
The invention provides a method and a system for controlling the stability of equipment based on a Bluetooth MESH protocol, which aim to solve the problems in the prior art.
The technical scheme adopted by the invention is as follows: the method for controlling the stability of the equipment based on the Bluetooth MESH protocol comprises the following steps:
networking equipment; the method comprises the following steps that a gateway is utilized to carry out distribution network operation on node equipment and switch equipment to form an MESH network, and the distribution network process is carried out by using a standard Bluetooth MESH protocol distribution network flow;
the equipment forms a communication network in a subscription-publishing mode; the gateway, the switch equipment and the node equipment form a subscription-publishing mode by using a subscription-publishing command in a Bluetooth MESH protocol; the node equipment subscribes to a certain group address by using a subscription instruction in a Bluetooth MESH protocol, and the switch equipment configures a target address of the switch equipment into a group address consistent with the node equipment by using a release instruction; the gateway subscribes to the group address same as the node equipment by using a subscription instruction, and records node equipment information including node equipment under a certain group address and state information of the current node equipment;
and after the switching equipment controls the node equipment, judging whether to retransmit the message by the gateway, and if the gateway judges that the switching equipment does not successfully control the node equipment, sending a control instruction to the node equipment by the gateway.
Preferably, after the switching device performs the operation of controlling the node device, the gateway determines whether to perform message retransmission, and if the gateway determines that the switching device does not successfully control the node device, the sending, by the gateway, the control instruction to the node device includes:
the gateway acquires node equipment information;
when the switch equipment sends a control instruction to the node equipment, the switch equipment also sends the control instruction to the gateway at the same time, and the gateway then makes clear of the control intention;
after receiving the control instruction and carrying out corresponding operation, the node equipment reports an execution result to the gateway;
the gateway judges whether all the node equipment receive the execution reporting result or not in sequence according to the node equipment information, if the gateway receives the execution reporting result of all the node equipment, namely the number of the node equipment is consistent with the number of the reported execution result, the success of the switch equipment control is indicated; if the report or partial reception of the node equipment is not received, the control failure of the switch equipment is indicated;
after judging that the switch equipment fails to be controlled, the gateway simulates the switch to resend the control instruction to the node equipment according to the control intention reported by the switch equipment.
Preferably, the node device is a light bank and the switch device is a lighting switch device.
Preferably, the status information of the node device includes a lamp group brightness and a switch status.
The invention also discloses a device stability control system based on the Bluetooth MESH protocol, which comprises a gateway, node devices and switch devices, wherein the system realizes message retransmission by the device stability control method based on the Bluetooth MESH protocol.
The invention has the beneficial effects that: the invention provides a device stability control method based on a Bluetooth MESH protocol, which uses a distribution network end with stronger computing power to retransmit messages, can know a control intention and ensure the correctness of control. The control of the lighting switch to the lamp is guaranteed, the reliability and stability of communication are improved, and user experience is improved.
Drawings
Fig. 1 is a schematic flow chart of a device stability control method based on the bluetooth MESH protocol disclosed in the present invention.
Fig. 2 is a flow chart of a communication network in which devices of the device stability control method based on the bluetooth MESH protocol form a subscription-distribution mode according to the present invention;
fig. 3 is a flowchart illustrating the gateway determining whether to retransmit a message according to the method for controlling device stability based on the bluetooth MESH protocol.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings, but embodiments of the present invention are not limited thereto.
To more clearly illustrate the technical problem solved by the present invention, the present embodiment introduces some basic concepts of bluetooth mesh. First, a bluetooth MESH node needs a distribution network node (provider) to complete networking, and this distribution network node is called a gateway. After the nodes are networked, the nodes communicate with each other by adopting a subscription-publishing model. For example, node A subscribes to topic a, and when node B publishes new content about topic a, node A will receive the content published by node B. The model is established by using a subscription instruction and a release instruction in a Bluetooth MESH protocol, the subscription instruction allows a node to subscribe to a certain theme, the release instruction allows the node to configure a target address, and the target address refers to an address of a command sent by the node, for example, after the lighting switch device configures the target address as an address A by using the release instruction, the lighting switch device will send a control command to the address A subsequently.
When the lighting switch device needs to control the lamp group, all the lamps in the lamp group are required to subscribe to a uniform group address (theme) first, that is, all the lamp devices are common, and then the lighting switch device only needs to issue a control instruction (new content) to the group address to complete the control of the lamps. Meanwhile, the Bluetooth communication is carried out through air packet sending, so that once signal interference occurs to cause air packet loss when the lighting switch equipment controls the lamp group, the lamp group is controlled to fail.
The method aims at the situation that packet loss occurs after a switch panel is used for sending a switch switching instruction at present, and the state that partial lamps are turned on and partial lamps are turned off occurs. The embodiment discloses a device stability control method based on a bluetooth MESH protocol, and as shown in fig. 1, a gateway G, a lighting switch device S, and a group of lamp devices L (i.e., node devices) are selected as devices of an implementation.
In step S1, in the device networking, the gateway G serves as a distribution network node (provider) to perform a network distribution operation on the lighting switch device S and the lamp group device L, so that the lighting switch device S and the lamp group device L form a MESH network, and the whole network distribution process is performed by using a standard bluetooth MESH protocol distribution network flow. After networking, the gateway G, the lighting switch device S and the lamp group device L can communicate with each other.
In the step S2, the gateway G, the lighting switch device S, and the lamp group device L form a communication network in the subscription-distribution mode by using the subscription-distribution command in the bluetooth MESH protocol.
Further, as shown in fig. 2, the step S2 is implemented in the communication network in which the device forms the subscription-distribution mode, beginning with step S2.1. In step 2.1, the gateway G sends a subscription instruction in the bluetooth MESH protocol to the lamp group device L, so that the lamp group device L subscribes to the group address a, and simultaneously the gateway records information of the lamp group L, including how many devices are under the group lamp and the current state of the lamp group. In step S2.2, the gateway G subscribes to the group address a, which is the same as the lamp group, using the subscription instruction. In step S2.3, the lighting switch device S configures its target address to the group address a using the issue instruction. To this end, a communication network in a subscription-distribution mode is formed among the gateway G, the lamp group L, and the lighting switch device S.
In step S3, the gateway determines whether to retransmit the message after the lighting switch device performs the light control operation, and after the lighting switch device S sends the control instruction to the lamp group device L, the lamp group device L feeds back the execution result to the gateway G. Meanwhile, since the gateway G and the light group device L subscribe to the same group address a in step S2, when the lighting switch device S sends a control instruction to the light group device L, the gateway G can also receive the control instruction sent by the lighting switch S, so that the gateway G knows the control intention of the lighting switch S. According to the feedback result of the lamp group device L and the control intention of the lighting switch device S, the gateway G can determine whether the lighting switch device S is in power control of the lamp. If not, the gateway G simulates the intention command of the lighting switch and retransmits the control command to the lamp group device L.
Further, as shown in fig. 3, the step S3.1 begins when the gateway determines whether to retransmit the message after the lighting switch device performs the light control operation according to the step S3.
In step S3.1, the gateway G obtains information of the light group device L.
In step S3.2, when sending a control command to the light group device L, the lighting switch device S also sends a control command to the gateway G, and the gateway G then knows its control intention.
In step S3.3, after receiving the control command and performing the corresponding operation, the lamp group device L reports the execution result to the gateway G.
In step S3.4, the gateway G sequentially determines whether all the lamp devices in the group lamp L have received the execution report result according to the lamp group information. If the gateway receives the execution results of all the lamp devices in the group lamp L and reports, that is, the number of the lamp devices in the group lamp L is consistent with the number of the reported execution results, the gateway indicates that the control of the lighting switch device S is successful; if the report of the lamp is not received or the partial report of the lamp is received, the failure of controlling the lamp by the lighting switch S is indicated. After the gateway G judges that the lamp control of the lighting switch device S fails, the gateway G simulates the lighting switch S to retransmit a control instruction to the lamp group L according to the control intention reported by the lighting switch device S.
Specifically, how the gateway determines the intention command of the simulated light switch after the control failure and retransmits in step S3.4 is exemplified by the fact that one light switch S1 needs to perform the light-on control on the light group L1. For example, when all lamps in the current lamp group L1 are in the initial state of being turned off, the lighting switch S1 performs the light-on control at this time, the lighting switch S1 sends a switch switching instruction to the group address a1, and since all lamps in the lamp group L1 subscribe to the group address a1, the lamp executes the switch state switching after receiving the switch switching instruction from the lighting switch S1, and reports the execution result information to the gateway G1 after the execution is completed. The gateway G1 determines whether the light-on control is successful according to whether the number of lights in the light group L1 information coincides with the number of execution results. If the numbers are consistent, the gateway will change the current status of the current light group L1, i.e., the status of the group light L1 is on. If the numbers are not consistent, the gateway G1 considers that the light-on control fails, and the gateway G1 simulates an intention instruction. First, since the gateway G1 also subscribes to the group address a1, when the light switch S1 sends a switch switching command to the group address a1, the gateway will also have the command. Therefore, the gateway knows that the lighting switch S1 is the control for switching the lamp group L1, and in combination with the current state information of the lamp group L1, that is, the lamp group L1 is in the off state, calculates that the retransmitted command is the control intention for turning on the lamp group, and the gateway G1 sends the light-on command to the meeting lamp group L1. This is the step of retransmitting the instruction.
Specifically, how the gateway simulates the lighting switch intention instruction at step S3 is exemplified by another operation example. If a lighting switch S2 requires 10% dimming control of the brightness of the lamp group L2, the brightness of all the lamps in the current lamp group L2 is the initial value of 100 lux. The lighting switch S2 sends a control instruction of turning on 10%, if the lamp receives the instruction, the action of turning on 10% is executed, the brightness is adjusted to 110lux, and the execution result information is reported to the gateway G2; if the instruction is not received, the action is not executed, and the information of the execution result is not reported to the gateway G2. The gateway G2 determines whether the light-on control is successful according to whether the number of lights in the light group L2 information coincides with the number of execution results. When the numbers are consistent, the gateway determines that the control is successful, and the brightness state of the lamp group L2 is modified to be 110 lux. When the number of inconsistencies appears, the gateway G2 considers the control to fail and the gateway G2 will simulate the intention instructions. Likewise, since the gateway G2 also subscribes to group address a2, when the lighting switch S2 sends a dim 10% command to group address a2, the gateway will also send that command. Therefore, the gateway G2 knows that the light switch S2 is intended to control the lamp group L2 to be brightened by 10%, and in combination with the current state information of the lamp group L2, that is, the current brightness value of the lamp group L2 is 100lux, calculates that the command for retransmission is a command for brightness adjustment of the lamp group to 110lux, and the gateway G1 sends the command for brightness adjustment of the lamp group to 110lux to the lamp group L1, so as to achieve a step of retransmitting the command.
Example 2
The embodiment discloses a device stability control system based on a bluetooth MESH protocol, which comprises a gateway, a node device and a switch device, and the system realizes message retransmission by the device stability control method based on the bluetooth MESH protocol in the embodiment 1.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A device stability control method based on Bluetooth MESH protocol is characterized by comprising the following steps:
networking equipment; the method comprises the following steps that a gateway is utilized to carry out distribution network operation on node equipment and switch equipment to form an MESH network, and the distribution network process is carried out by using a standard Bluetooth MESH protocol distribution network flow;
the equipment forms a communication network in a subscription-publishing mode; the gateway, the switch equipment and the node equipment form a subscription-publishing mode by using a subscription-publishing command in a Bluetooth MESH protocol; the node equipment subscribes to a certain group address by using a subscription instruction in a Bluetooth MESH protocol, and the switch equipment configures a target address of the switch equipment into a group address consistent with the node equipment by using a release instruction; the gateway subscribes to the group address same as the node equipment by using a subscription instruction, and records node equipment information including node equipment under a certain group address and state information of the current node equipment;
and after the switching equipment controls the node equipment, judging whether to retransmit the message by the gateway, and if the gateway judges that the switching equipment does not successfully control the node equipment, sending a control instruction to the node equipment by the gateway.
2. The method of claim 1, wherein the gateway determines whether to retransmit the message after the switching device performs the node device control operation, and if the gateway determines that the switching device does not successfully control the node device, the sending of the control command from the gateway to the node device comprises:
the gateway acquires node equipment information;
when the switch equipment sends a control instruction to the node equipment, the switch equipment also sends the control instruction to the gateway at the same time, and the gateway then makes clear of the control intention;
after receiving the control instruction and carrying out corresponding operation, the node equipment reports an execution result to the gateway;
the gateway judges whether all the node equipment receive the execution reporting result or not in sequence according to the node equipment information, if the gateway receives the execution reporting result of all the node equipment, namely the number of the node equipment is consistent with the number of the reported execution result, the success of the switch equipment control is indicated; if the report or partial reception of the node equipment is not received, the control failure of the switch equipment is indicated;
after judging that the switch equipment fails to be controlled, the gateway simulates the switch to resend the control instruction to the node equipment according to the control intention reported by the switch equipment.
3. The method of claim 1, wherein the node device is a lamp set and the switch device is a lighting switch device.
4. The method of claim 3, wherein the status information of the node device comprises a light group brightness and a switch status.
5. A device stability control system based on bluetooth MESH protocol, the system comprising a gateway, a node device and a switch device, characterized in that the system implements message retransmission by the device stability control method based on bluetooth MESH protocol according to any one of claims 1 to 4.
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| CN114237111B (en) | 2024-01-30 |
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