CN109495866A - Bluetooth equipment, bluetooth Mesh network information transferring method and readable storage medium storing program for executing - Google Patents
Bluetooth equipment, bluetooth Mesh network information transferring method and readable storage medium storing program for executing Download PDFInfo
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- CN109495866A CN109495866A CN201710818002.5A CN201710818002A CN109495866A CN 109495866 A CN109495866 A CN 109495866A CN 201710818002 A CN201710818002 A CN 201710818002A CN 109495866 A CN109495866 A CN 109495866A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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Abstract
A kind of bluetooth equipment, bluetooth Mesh network information transferring method and readable storage medium storing program for executing, the bluetooth Mesh network information transferring method includes: reception broadcast packet, and the type of the broadcast packet is obtained, the broadcast packet is sent by other bluetooth equipments in the bluetooth Mesh network；When the type of the broadcast packet, which is, to connect omnidirectional, duration is switched using radio frequency and switches broadcast channel as channel transmission interval, and sends the broadcast packet on the broadcast channel switched；The radio frequency switching duration is less than default interframe space.The successful receiving rate of broadcast packet can be improved in above scheme, reduces broadcast storm probability of occurrence.
Description
Technical field
The present embodiments relate to Bluetooth communication fields more particularly to a kind of bluetooth equipment, bluetooth Mesh network information to pass
Transmission method and readable storage medium storing program for executing.
Background technique
The transmission range of wireless communication is usually limited, and can be extended using wireless grid (Mesh) network technology
The transmission range of wireless communication.In bluetooth Mesh network, all devices can directly or indirectly be set with other
Standby communication.
In bluetooth Mesh network, can using Path selection (routing) method or flood (flooding) method come
Realize the communication of two equipment.When using routing resource, two equipment are carried out by the particular path in Mesh network
Communication；When using flooding method, the other equipment in Mesh network, Mesh network are sent information to by an equipment
In other equipment as relaying by information relay forwarding to target device.
Bluetooth Mesh network sends information usually using ADV (broadcast packet), and relaying will broadcast when receiving broadcast packet
Packet forwarding, target device obtain information therein when receiving broadcast packet.With the increasing of number of devices in bluetooth Mesh network
Add, the number of relay node greatly increases, and causes the relay forwarding times of broadcast packet to greatly increase, the successful receiving rate of broadcast packet
It is lower, it is likely to result in broadcast storm, leads to network blockage.
Summary of the invention
What the embodiment of the present invention solved is how to improve the successful receiving rate of broadcast packet, reduces broadcast storm probability of occurrence,
Improve network throughput.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of bluetooth Mesh network information transferring method, comprising:
Broadcast packet is received, and obtains the type of the broadcast packet, the broadcast packet is set by other bluetooths in the bluetooth Mesh network
Preparation is sent；When the type of the broadcast packet, which is, to connect omnidirectional, using radio frequency switching duration as channel transmission interval, cut
Broadcast channel is changed, and sends the broadcast packet on the broadcast channel switched；The radio frequency switching duration is less than default interframe
Interval.
Optionally, it is described send the broadcast packet on the broadcast channel switched before, further includes: detection is described to be cut
Whether the corresponding signal strength of the broadcast channel changed is less than preset value；Determine that the corresponding signal of the switched broadcast channel is strong
The duration that degree is less than the preset value reaches preset duration.
Optionally, the bluetooth Mesh network information transferring method further include: when the switched broadcast channel is corresponding
Signal strength when being not less than the preset value, broadcast switch again with a length of channel transmission interval when radio frequency switching and is believed
Road.
Optionally, whether the corresponding signal strength of detection the switched broadcast channel is less than preset value, comprising:
Obtain number of retransmissions of the broadcast packet in the bluetooth Mesh network；When the broadcast packet is in the bluetooth Mesh network
Number of retransmissions when being greater than preset times, detect the corresponding signal strength of the switched broadcast channel whether be less than it is default
Value.
The embodiment of the invention provides a kind of computer readable storage mediums, are stored thereon with computer instruction, the meter
The step of bluetooth Mesh network information transferring method described in executing any of the above-described kind when the instruction operation of calculation machine.
The embodiment of the invention provides a kind of bluetooth equipment, including memory and processor, it is stored on the memory
The computer instruction that can be run on the processor, the computer instruction run when execute any of the above-described kind described in bluetooth
The step of Mesh network information transferring method.
The embodiment of the invention also provides another bluetooth Mesh network information transferring methods, comprising: when listening to presence
When the broadcast packet that other bluetooth equipments in the bluetooth Mesh network are sent, the type of the broadcast packet is obtained；When described wide
The type for broadcasting packet is when can not connect omnidirectional, and the first radio-frequency devices of control receive the broadcast packet on the first broadcast channel,
It controls the second radio-frequency devices and sends the broadcast packet on the second broadcast channel, and first broadcast channel and described second is extensively
Broadcast channel difference.
Optionally, before controlling the second radio-frequency devices and sending the broadcast packet on the second broadcast channel, further includes: inspection
Survey whether the corresponding signal strength of second broadcast channel is less than preset value；Determine the corresponding signal of second broadcast channel
The duration that intensity is less than the preset value reaches preset duration.
Optionally, the bluetooth Mesh network information transferring method further include: when the corresponding letter of second broadcast channel
When number intensity is not less than the preset value, switch to third broadcast channel, and first broadcast channel, the second broadcast channel with
And the third broadcast channel is different.
Optionally, whether the corresponding signal strength of the second broadcast channel of the detection is less than preset value, comprising: described in acquisition
Number of retransmissions of the broadcast packet in the bluetooth Mesh network；When the broadcast packet re-transmission in the bluetooth Mesh network time
When number is greater than preset times, detect whether the corresponding signal strength of second broadcast channel is less than preset value.
The embodiment of the invention provides a kind of bluetooth equipment, the bluetooth equipment is that the bluetooth in bluetooth Mesh network is set
It is standby, and the bluetooth equipment includes a radio-frequency head, the bluetooth equipment includes: receiving unit, described for receiving broadcast packet
Broadcast packet is broadcasted by other bluetooth equipments in the bluetooth Mesh network；First acquisition unit, for obtaining the broadcast packet
Type；First switch unit, for being made with radio frequency switching duration when the type of the broadcast packet, which is, to connect omnidirectional
Switch broadcast channel for channel transmission interval duration；The radio frequency switching duration is less than default interframe space；First radio unit,
For sending the broadcast packet on the broadcast channel switched.
Optionally, the bluetooth equipment further include: first detection unit, for detecting the switched broadcast channel pair
Whether the signal strength answered is less than preset value；First radio unit, suitable for determining the switched broadcast channel pair
When the duration that the signal strength answered is less than the preset value reaches preset duration, sent on the broadcast channel switched described wide
Broadcast packet.
Optionally, first switch unit is also used to work as the corresponding signal strength of the switched broadcast channel not
When less than the preset value, a length of channel transmission interval switches broadcast channel again when with radio frequency switching.
Optionally, the first detection unit, for obtaining re-transmission of the broadcast packet in the bluetooth Mesh network
Number；When number of retransmissions of the broadcast packet in the bluetooth Mesh network is greater than preset times, described switched is detected
The corresponding signal strength of broadcast channel whether be less than preset value.
The embodiment of the invention also provides another bluetooth equipment, the bluetooth equipment is the bluetooth in bluetooth Mesh network
Equipment, the bluetooth equipment are provided with the first radio-frequency devices and the second radio-frequency devices；The bluetooth equipment includes: to monitor list
Member, for monitoring the broadcast packet of the transmission of other bluetooth equipments in the bluetooth Mesh network；Second acquisition unit, for obtaining
The type for the broadcast packet that the monitoring unit listens to；Control unit is that can not connect nothing for the type when the broadcast packet
When orientation, the first radio-frequency devices of control receive the broadcast packet on the first broadcast channel, control the second radio-frequency devices second
The broadcast packet is sent on broadcast channel；First broadcast channel is different from second broadcast channel.
Optionally, the bluetooth equipment further include: second detection unit, it is corresponding for detecting second broadcast channel
Whether signal strength is less than preset value；Described control unit is also used to when the corresponding signal strength of second broadcast channel is small
When the duration of the preset value reaches preset duration, the broadcast packet is sent on second broadcast channel.
Optionally, the bluetooth equipment further include: the second switch unit, for working as the corresponding letter of second broadcast channel
When number intensity is not less than the preset value, switch to third broadcast channel, and first broadcast channel, the second broadcast channel with
And the third broadcast channel is different.
Optionally, the second detection unit, for obtaining re-transmission of the broadcast packet in the bluetooth Mesh network
Number；When number of retransmissions of the broadcast packet in the bluetooth Mesh network is greater than preset times, it is wide to detect described second
Broadcast whether the corresponding signal strength of channel is less than preset value.
The embodiment of the invention provides a kind of computer readable storage mediums, are stored thereon with computer instruction, the meter
The step of bluetooth Mesh network information transferring method described in executing any of the above-described kind when the instruction operation of calculation machine.
The embodiment of the invention provides a kind of bluetooth equipment, including memory and processor, it is stored on the memory
The computer instruction that can be run on the processor, the computer instruction run when execute any of the above-described kind described in bluetooth
The step of Mesh network information transferring method.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
When the type of the broadcast packet received, which is, to connect omnidirectional, duration is switched as between channel transmitting using radio frequency
Every switching broadcast channel, rather than broadcast channel is switched as channel transmission interval using default interframe space, so as to
To reduce the time of the broadcast packet transmitted and received.When the duration of the broadcast packet transmitted and received shortens, connect on broadcast channel
The duration for receiving broadcast packet is increase accordingly, and so as to improve the successful receiving rate of broadcast packet, and then reduces broadcast storm and occurs generally
Rate improves bluetooth Mesh network handling capacity.
Further, when the type for listening to broadcast packet is that can not connect omnidirectional, the first radio-frequency devices are controlled first
Broadcast packet is received on broadcast channel, controls the broadcast packet that the second radio-frequency devices transmit and receive on the second broadcast channel, namely
The transmitting-receiving that broadcast packet is realized by different broadcast channels improves the successful receiving rate of broadcast packet, and then reduces broadcast storm and go out
Existing probability, improves bluetooth Mesh network handling capacity.
Detect that the corresponding signal strength indication of switched broadcast channel reaches default less than the duration of preset value in addition, working as
When duration, determine other bluetooth equipments in Mesh network currently without the hair for carrying out broadcast packet on the broadcast channel switched
It send, therefore carries out the transmission of broadcast packet on the broadcast channel switched, the probability of occurrence of broadcast storm can be effectively reduced.
Detailed description of the invention
Fig. 1 is the flow chart of one of embodiment of the present invention bluetooth Mesh network information transferring method；
Fig. 2 is the flow chart of another bluetooth Mesh network information transferring method in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of one of embodiment of the present invention bluetooth equipment；
Fig. 4 is the structural schematic diagram of another bluetooth equipment in the embodiment of the present invention.
Specific embodiment
Bluetooth Mesh network sends information usually using ADV (broadcast packet), and relaying will broadcast when receiving broadcast packet
Packet forwarding, target device obtain information therein when receiving broadcast packet.With the increasing of number of devices in bluetooth Mesh network
Add, the number of relay node greatly increases.Assuming that including 20 bluetooth equipments in a bluetooth Mesh network, each bluetooth is set
It is standby to be regarded as a relay node.When using flooding method, the broadcast packet that a bluetooth equipment is sent can quilt
Forward 20 ability to target Bluetooth devices.Assuming that the broadcast interval of each of bluetooth Mesh network bluetooth equipment is
100ms broadcasts the when a length of 3ms an of broadcast packet, and in the case where Lothrus apterus, the 60ms in broadcast interval is broadcasted shared
According to, only a remaining 40ms is idle, broadcast packet to answer success rate lower.
In embodiments of the present invention, broadcast channel is switched as channel transmission interval using radio frequency switching duration, rather than
Broadcast channel is switched as channel transmission interval using default interframe space, the broadcast packet arrived so as to shorten broadcast reception when
Between, increase the duration for receiving broadcast packet on broadcast channel, so as to improve the successful receiving rate of broadcast packet, and then reduces broadcast
Storm probability of occurrence improves bluetooth Mesh network handling capacity.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
The embodiment of the invention provides a kind of bluetooth Mesh network information transferring methods, referring to Fig.1, below by way of specific step
Suddenly it is described in detail.
Step S101 receives broadcast packet, and obtains the type of the broadcast packet.
In practical applications it is found that the type of broadcast packet may include following several: can connect omnidirectional (ADV_IND),
Orientation (ADV_DIRECT_IND) can be connected, non-directional (ADV_SCAN_IND) can be scanned and omnidirectional (ADV_ can not be connected
NONCONN_IND) etc..
Bluetooth equipment is when receiving broadcast packet, for different types of broadcast packet, operation performed by bluetooth equipment
It may be different.Therefore, in specific implementation, bluetooth equipment is when receiving broadcast packet, the class of the available broadcast packet received
Type.It should be noted that bluetooth equipment described in the embodiment of the present invention is the bluetooth equipment in bluetooth Mesh network, bluetooth is set
The standby broadcast packet received is the broadcast packet of other bluetooth equipments broadcast in bluetooth Mesh network.
Step S102 switches duration as channel using radio frequency when the type of the broadcast packet, which is, to connect omnidirectional
Transmission interval switches broadcast channel.
In bluetooth Mesh network, when bluetooth equipment is not the corresponding target Bluetooth devices of broadcast packet, bluetooth equipment institute
The type of the broadcast packet received can not usually connect omnidirectional.When bluetooth equipment detects the type of the broadcast packet received
When for that can not connect omnidirectional, bluetooth equipment is used as relay node to use at this time.
It is during the work time, blue in practical applications it is found that when bluetooth equipment is used as relay node in Mesh network
Tooth equipment plays relaying action, for receiving broadcast packet, then sends broadcast packet.Broadcast channel used in bluetooth equipment includes
Broadcast channel 37, broadcast channel 38 and broadcast channel 39.The broadcast listening packet on broadcast channel 37 of bluetooth equipment rotation is simultaneously
It is sent on broadcast channel 37 after uppick broadcast packet, the broadcast listening packet and in uppick broadcast packet on broadcast channel 38
Sent on broadcast channel 38 later, on broadcast channel 39 broadcast listening packet and after uppick broadcast packet in broadcast channel
It is sent on 39.When bluetooth equipment only includes a set of radio-frequency devices, bluetooth equipment on a certain broadcast channel send broadcast packet when,
The reception namely bluetooth equipment that cannot achieve broadcast packet can not be completed at the same time the transmitting-receiving of broadcast packet.
After bluetooth equipment completes the transmitting-receiving of broadcast packet on a broadcast channel, the regular hour is waited to switch to next
Broadcast channel.In the prior art, bluetooth equipment is in the when a length of interframe space (T_ switched on different broadcast channels
IFS), the when a length of 150 μ s of T_IFS.
In embodiments of the present invention, when bluetooth equipment switches between different broadcast channels, made with radio frequency switching duration
Switch broadcast channel for channel transmission interval.Radio frequency a length of 60 μ s or so when switching, compared with the prior art, the present invention is implemented
The duration of channel transmission interval in example is substantially reduced.
When the duration of channel transmission interval reduces, the duration that bluetooth equipment receives broadcast packet is elongated.When bluetooth equipment connects
When the duration of receipts broadcast packet is elongated, the success rate that bluetooth equipment receives broadcast packet increases, and then reduces broadcast storm probability of occurrence,
Improve bluetooth Mesh network handling capacity.
In practical applications it is found that while some bluetooth equipment in bluetooth Mesh network sends broadcast packet,
The case where it nearby sends broadcast packet there may be other bluetooth equipments in same bluetooth Mesh network.At this point, due to same
There are multiple bluetooth equipments to send broadcast packet simultaneously in bluetooth Mesh network, may result in bluetooth Mesh network while retransmitting
Broadcast packet it is more, lead to the appearance of broadcast storm.
It in embodiments of the present invention, is the appearance for reducing broadcast storm, bluetooth equipment is sent out on the broadcast channel switched
Before sending broadcast packet, it can also judge whether the corresponding signal strength of switched broadcast channel is less than preset value.
When the broadcast channel that the switched corresponding signal strength of broadcast channel of judgement is less than preset value, and is switched corresponds to
Signal strength be less than the duration of preset value when reaching preset duration, bluetooth equipment sends broadcast on the broadcast channel switched
Packet.When determining that the switched corresponding signal of broadcast channel is less than preset value, it is possible to determine that on the broadcast channel switched,
Other bluetooth equipments in same bluetooth Mesh network may not send broadcast packet；Or determine in the broadcast letter switched
On road, in same bluetooth Mesh network send broadcast packet other bluetooth equipments distance farther out, in same bluetooth Mesh network
It is smaller to send interference caused by the bluetooth equipment of broadcast packet.
For example, the broadcast channel that bluetooth equipment A is switched is broadcast channel 38.Bluetooth equipment A is switching to broadcast channel
It is not the broadcast packet transmitted and received immediately after 38, but first detects the corresponding signal strength of broadcast channel 38.Work as detection
When the duration for being less than preset value to the corresponding signal strength of broadcast channel 38 reaches preset duration, determine in bluetooth Mesh network
Other bluetooth equipments may all not sent on broadcast channel 38 in broadcast packet or bluetooth Mesh network in broadcast channel 38
Farther out apart from bluetooth equipment A, the influence to bluetooth equipment A is smaller for the upper bluetooth equipment for sending broadcast packet.Therefore, bluetooth equipment A
Broadcast packet can be sent on the broadcast channel 38 switched.
When determining that the switched corresponding signal strength of broadcast channel is not less than preset value, determine in the broadcast switched
On channel, other bluetooth equipments in same bluetooth Mesh network may send broadcast packet.At this point, if bluetooth equipment continues
Continue to send broadcast packet on the broadcast channel switched, then may result in the broadcast packet in synchronization bluetooth Mesh network
Number of retransmissions is more, and then leads to the appearance of broadcast storm.Therefore, in embodiments of the present invention, when bluetooth equipment detects institute
A length of channel transmission interval is again when the corresponding signal strength of the broadcast channel of switching is not less than preset value, when can be switched with radio frequency
Switch broadcast channel, namely do not send broadcast packet on the broadcast channel switched, but switches to another broadcast channel, from
And broadcast packet number of retransmissions of the synchronization in bluetooth Mesh network can be reduced, reduce broadcast storm probability of occurrence.
For example, the broadcast channel that bluetooth equipment A is switched is broadcast channel 38.It is other when existing in bluetooth Mesh network
For bluetooth equipment just when sending broadcast packet on broadcast channel 38, bluetooth equipment A may detect the corresponding letter of broadcast channel 38
Number intensity is not less than preset value.At this point, bluetooth equipment A does not continue to send broadcast packet on broadcast channel 38, but with radio frequency
A length of channel transmission interval switches broadcast channel when switching, switches to broadcast channel 39 from broadcast channel 38.
It, can before sending broadcast packet after bluetooth equipment switches to another broadcast channel from a broadcast channel
To continue to test the corresponding signal strength of switched broadcast channel, to determine that being to continue with transmission broadcast packet still switches broadcast letter
Road.
In specific implementation, bluetooth equipment, which can not have to the corresponding signal strength of broadcast channel that real-time detection is switched, is
It is no to be less than preset value.Bluetooth equipment can number of retransmissions of the first real-time detection broadcast packet in bluetooth Mesh network, when detecting
Number of retransmissions of the broadcast packet in bluetooth Mesh network be greater than preset times when, bluetooth equipment start real-time detection switched it is wide
Broadcast whether the corresponding signal strength of channel is less than preset value.When bluetooth equipment real-time detection to broadcast packet is in bluetooth Mesh network
Number of retransmissions when being less than preset times, bluetooth equipment, which may not need, detects the switched corresponding signal strength of broadcast channel.
It, can in practical applications it is found that when number of retransmissions of the broadcast packet in bluetooth Mesh network is greater than preset times
Broadcast storm can be will appear.In embodiments of the present invention, when bluetooth equipment detects weight of the broadcast packet in bluetooth Mesh network
When passing number greater than preset times, it is default whether the switched corresponding signal strength of broadcast channel of bluetooth equipment detection is less than
Value.It is wide not what is switched when bluetooth equipment, which detects the switched corresponding signal strength of broadcast channel, is not less than preset value
It broadcasts and sends broadcast packet on channel, to reduce the quantity of the broadcast packet on switched broadcast channel, reduce going out for broadcast storm
Existing probability.
In specific implementation, the corresponding signal strength of detection broadcast channel can be the signal on detection broadcast channel
Received signal strength indicator (Received Signal Strength Indication, RSSI), and judge on broadcast channel
Whether the RSSI of signal is less than pre-determined threshold.When the RSSI of the signal on broadcast channel is less than pre-determined threshold, broadcast letter is determined
The corresponding signal strength in road is less than preset value.
The embodiment of the invention provides a kind of computer readable storage mediums, are stored thereon with computer instruction, the meter
The step of executing the bluetooth Mesh network information transferring method provided in above-described embodiment when the instruction operation of calculation machine.
The embodiment of the invention provides a kind of bluetooth equipment, including memory and processor, it is stored on the memory
The computer instruction that can be run on the processor, the computer instruction execute the institute provided in above-described embodiment when running
The step of bluetooth Mesh network information transferring method stated.
The embodiment of the invention also provides another bluetooth Mesh network information transferring methods, referring to Fig. 2, below by way of tool
Body step is described in detail.
Step S201, when listen to there are in the bluetooth Mesh network other bluetooth equipments send broadcast packet when,
Obtain the type of the broadcast packet.
In specific implementation, when bluetooth equipment is in bluetooth Mesh network, bluetooth Mesh network can be monitored in real time
In other bluetooth equipments send broadcast packet.In the broadcast packet that other bluetooth equipments listened in bluetooth Mesh network are sent
When, the type of available listened to broadcast packet.
In practical applications it is found that the type of broadcast packet transmitted by bluetooth equipment may include following several: can connect
Omnidirectional (ADV_IND), orientation (ADV_DIRECT_IND) can be connected, non-directional (ADV_SCAN_IND) can be scanned and can not
Connect omnidirectional (ADV_NONCONN_IND) etc..
Bluetooth equipment can execute step S202 after the type for obtaining the broadcast packet listened to.
Step S202 controls the first radio-frequency devices first when the type of the broadcast packet, which is, to connect omnidirectional
The broadcast packet is received on broadcast channel, the second radio-frequency devices of control send the broadcast packet on the second broadcast channel.
In specific implementation, the first broadcast channel is different broadcast channels from the second broadcast channel.In practical applications
It is found that during the work time, bluetooth equipment plays relaying action when bluetooth equipment is used as relay node in Mesh network,
For receiving broadcast packet, broadcast packet is then sent.Broadcast channel used in bluetooth equipment includes broadcast channel 37, broadcast channel
38 and broadcast channel 39.When the first broadcast channel is broadcast channel 37, the second broadcast channel can for broadcast channel 38 or
Broadcast channel 39.When the first broadcast channel is broadcast channel 38, the second broadcast channel can be broadcast channel 37 or broadcast letter
Road 39.When the first broadcast channel is broadcast channel 39, the second broadcast channel can be broadcast channel 37 or broadcast channel 38.
When the switching of the first broadcast channel, the second broadcast channel is correspondingly switched over, and the first broadcast letter after switching
Road and the second broadcast channel after switching be not still identical.
Bluetooth equipment provided in the embodiment of the present invention may include at least two sets of radio-frequency devices: the first radio-frequency devices with
And second radio-frequency devices.Bluetooth equipment can control the first radio-frequency devices carried out from the second radio-frequency devices in synchronization it is different
Operation.For example, bluetooth equipment, which controls the second radio-frequency devices while controlling the first radio-frequency devices and receiving broadcast packet, sends broadcast
Packet.
Since bluetooth equipment includes at least two sets of radio-frequency devices, can be received controlling a set of radio-frequency devices therein
It while broadcast packet, controls another set of radio-frequency devices and sends broadcast packet, realized in synchronization real using different radio-frequency devices
The transmitting-receiving of existing broadcast packet.Therefore, on a broadcast channel, the radio-frequency devices bluetooth equipment for being responsible for receiving broadcast is broadcasted at one
Always the reception of broadcast packet is carried out on channel, and does not have to the transmission for being responsible for broadcast packet, therefore is increased bluetooth equipment and received broadcast
The duration of packet, therefore the successful receiving rate of broadcast packet can be improved.
In practical applications it is found that while some bluetooth equipment in bluetooth Mesh network sends broadcast packet,
The case where it nearby sends broadcast packet there may be other bluetooth equipments in same bluetooth Mesh network.At this point, due to same
There are multiple bluetooth equipments to send broadcast packet simultaneously in bluetooth Mesh network, may result in bluetooth Mesh network while retransmitting
Broadcast packet it is more, lead to the appearance of broadcast storm.
It in embodiments of the present invention, is the appearance for reducing broadcast storm, bluetooth equipment is sent out on the broadcast channel switched
Before sending broadcast packet, it can also judge whether the corresponding signal strength of switched broadcast channel is less than preset value.
When the broadcast channel that the switched corresponding signal strength of broadcast channel of judgement is less than preset value, and is switched corresponds to
Signal strength be less than the duration of preset value when reaching preset duration, bluetooth equipment sends broadcast on the broadcast channel switched
Packet.When determining that the switched corresponding signal of broadcast channel is less than preset value, it is possible to determine that on the broadcast channel switched,
Other bluetooth equipments in same bluetooth Mesh network may not send broadcast packet；Or determine in the broadcast letter switched
On road, in same bluetooth Mesh network send broadcast packet other bluetooth equipments distance farther out, in same bluetooth Mesh network
It is smaller to send interference caused by the bluetooth equipment of broadcast packet.
For example, the broadcast channel that bluetooth equipment A is switched is broadcast channel 38.Bluetooth equipment A is switching to broadcast channel
It is not the broadcast packet transmitted and received immediately after 38, but first detects the corresponding signal strength of broadcast channel 38.Work as detection
When the duration for being less than preset value to the corresponding signal strength of broadcast channel 38 reaches preset duration, determine in bluetooth Mesh network
Other bluetooth equipments may all not sent on broadcast channel 38 in broadcast packet or bluetooth Mesh network in broadcast channel 38
Farther out apart from bluetooth equipment A, the influence to bluetooth equipment A is smaller for the upper bluetooth equipment for sending broadcast packet.Therefore, bluetooth equipment A
Broadcast packet can be sent on the broadcast channel 38 switched.
When determining that the switched corresponding signal strength of broadcast channel is not less than preset value, determine in the broadcast switched
On channel, other bluetooth equipments in same bluetooth Mesh network may send broadcast packet.At this point, if bluetooth equipment continues
Continue to send broadcast packet on the broadcast channel switched, then may result in the broadcast packet in synchronization bluetooth Mesh network
Number of retransmissions is more, and then leads to the appearance of broadcast storm.Therefore, in embodiments of the present invention, when bluetooth equipment detects institute
A length of channel transmission interval is again when the corresponding signal strength of the broadcast channel of switching is not less than preset value, when can be switched with radio frequency
Switch broadcast channel, namely do not send broadcast packet on the broadcast channel switched, but switches to another broadcast channel, from
And broadcast packet number of retransmissions of the synchronization in bluetooth Mesh network can be reduced, reduce broadcast storm probability of occurrence.
For example, the broadcast channel that bluetooth equipment A is switched is broadcast channel 38.It is other when existing in bluetooth Mesh network
For bluetooth equipment just when sending broadcast packet on broadcast channel 38, bluetooth equipment A may detect the corresponding letter of broadcast channel 38
Number intensity is not less than preset value.At this point, bluetooth equipment A does not continue to send broadcast packet on broadcast channel 38, but with radio frequency
A length of channel transmission interval switches broadcast channel when switching, switches to broadcast channel 39 from broadcast channel 38.
It, can before sending broadcast packet after bluetooth equipment switches to another broadcast channel from a broadcast channel
To continue to test the corresponding signal strength of switched broadcast channel, to determine that being to continue with transmission broadcast packet still switches broadcast letter
Road.
In specific implementation, bluetooth equipment, which can not have to the corresponding signal strength of broadcast channel that real-time detection is switched, is
It is no to be less than preset value.Bluetooth equipment can number of retransmissions of the first real-time detection broadcast packet in bluetooth Mesh network, when detecting
Number of retransmissions of the broadcast packet in bluetooth Mesh network be greater than preset times when, bluetooth equipment start real-time detection switched it is wide
Broadcast whether the corresponding signal strength of channel is less than preset value.When bluetooth equipment real-time detection to broadcast packet is in bluetooth Mesh network
Number of retransmissions when being less than preset times, bluetooth equipment, which may not need, detects the switched corresponding signal strength of broadcast channel.
It, can in practical applications it is found that when number of retransmissions of the broadcast packet in bluetooth Mesh network is greater than preset times
Broadcast storm can be will appear.In embodiments of the present invention, when bluetooth equipment detects weight of the broadcast packet in bluetooth Mesh network
When passing number greater than preset times, it is default whether the switched corresponding signal strength of broadcast channel of bluetooth equipment detection is less than
Value.It is wide not what is switched when bluetooth equipment, which detects the switched corresponding signal strength of broadcast channel, is not less than preset value
It broadcasts and sends broadcast packet on channel, to reduce the quantity of the broadcast packet on switched broadcast channel, reduce going out for broadcast storm
Existing probability.
In specific implementation, the corresponding signal strength of the second broadcast channel of detection can be on the second broadcast channel of detection
Signal received signal strength indicator (Received Signal Strength Indication, RSSI), and judge second
Whether the RSSI of the signal on broadcast channel is less than pre-determined threshold.When the RSSI of the signal on the second broadcast channel is less than pre- gating
In limited time, determine that the corresponding signal strength of the second broadcast channel is less than preset value.
Referring to Fig. 3, one of embodiment of the present invention bluetooth equipment is given, one is provided in the bluetooth equipment and is penetrated
Frequency end, and the bluetooth equipment 30 includes: receiving unit 301, first acquisition unit 302, the first switch unit 303 and first
Radio unit 304, in which:
Receiving unit 301, for receiving broadcast packet, the broadcast packet is set by other bluetooths in the bluetooth Mesh network
Standby broadcast；
First acquisition unit 302, for obtaining the type of the broadcast packet；
First switch unit 303, for when the type of the broadcast packet be can not connect omnidirectional when, when being switched with radio frequency
It is long that channel transmission interval duration is used as to switch broadcast channel；The radio frequency switching duration is less than default interframe space；
First radio unit 304, for sending the broadcast packet on the broadcast channel switched.
In specific implementation, the bluetooth equipment 30 can also include: first detection unit 305, for detecting the institute
Whether the corresponding signal strength of the broadcast channel of switching is less than preset value；First radio unit 304 is suitable for described in the determination
It is wide what is switched when the duration that the corresponding signal strength of the broadcast channel switched is less than the preset value reaches preset duration
It broadcasts and sends the broadcast packet on channel.
In specific implementation, first switch unit 303 can be also used for when the switched broadcast channel is corresponding
Signal strength when being not less than the preset value, broadcast switch again with a length of channel transmission interval when radio frequency switching and is believed
Road.
In specific implementation, the first detection unit 305 can be used for obtaining the broadcast packet in the bluetooth Mesh
Number of retransmissions in network；When number of retransmissions of the broadcast packet in the bluetooth Mesh network is greater than preset times, inspection
Survey whether the corresponding signal strength of the switched broadcast channel is less than preset value.
Referring to Fig. 4, another bluetooth equipment in the embodiment of the present invention is given, the bluetooth equipment 40 is provided with first
Radio-frequency devices and the second radio-frequency devices, and the bluetooth equipment 40 include: monitoring unit 401, second acquisition unit 402 and
Control unit 403, in which:
Monitoring unit 401, for monitoring the broadcast packet of the transmission of other bluetooth equipments in the bluetooth Mesh network；
Second acquisition unit 402, for obtaining the type for the broadcast packet that the monitoring unit listens to；
Control unit 403, for controlling the first radio-frequency devices when the type of the broadcast packet, which is, to connect omnidirectional
The broadcast packet is received on the first broadcast channel, the second radio-frequency devices of control send the broadcast on the second broadcast channel
Packet；First broadcast channel is different from second broadcast channel.
In specific implementation, the bluetooth equipment 40 can also include: second detection unit 404, for detecting described
Whether the corresponding signal strength of two broadcast channels is less than preset value；Described control unit 403 can be also used for when described second is wide
When broadcasting the corresponding signal strength of channel and reaching preset duration less than the duration of the preset value, sent out on second broadcast channel
Send the broadcast packet.
In specific implementation, the bluetooth equipment 40 can also include: the second switch unit 405, can be used for when described
When the corresponding signal strength of second broadcast channel is not less than the preset value, third broadcast channel is switched to, and described first is wide
It is different to broadcast channel, the second broadcast channel and the third broadcast channel.
In specific implementation, the second detection unit 404 can be used for obtaining the broadcast packet in the bluetooth Mesh
Number of retransmissions in network；When number of retransmissions of the broadcast packet in the bluetooth Mesh network is greater than preset times, inspection
Survey whether the corresponding signal strength of second broadcast channel is less than preset value.
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer instruction, described
The step of bluetooth Mesh network information transferring method described in the various embodiments described above is executed when computer instruction is run.
The embodiment of the invention also provides a kind of bluetooth equipment, including memory and processor, stored on the memory
There is the computer instruction that can be run on the processor, is executed described in the various embodiments described above when the computer instruction is run
Bluetooth Mesh network information transferring method the step of.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with indicating relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (20)
1. a kind of bluetooth Mesh network information transferring method characterized by comprising
Broadcast packet is received, and obtains the type of the broadcast packet, the broadcast packet is by other indigo plants in the bluetooth Mesh network
Tooth equipment is sent；
When the type of the broadcast packet, which is, to connect omnidirectional, duration is switched as channel transmission interval, switching using radio frequency
Broadcast channel, and the broadcast packet is sent on the broadcast channel switched；The radio frequency switching duration is less than between default interframe
Every.
2. bluetooth Mesh network information transferring method as described in claim 1, which is characterized in that described in the broadcast switched
Before sending the broadcast packet on channel, further includes:
Detect whether the corresponding signal strength of the switched broadcast channel is less than preset value；
Determine that the corresponding signal strength of the switched broadcast channel reaches preset duration less than the duration of the preset value.
3. bluetooth Mesh network information transferring method as claimed in claim 2, which is characterized in that further include: it is cut when described
When the corresponding signal strength of the broadcast channel changed is not less than the preset value, a length of channel transmission interval when with radio frequency switching
Again switch broadcast channel.
4. bluetooth Mesh network information transferring method as claimed in claim 2, which is characterized in that the detection is described to be switched
The corresponding signal strength of broadcast channel whether be less than preset value, comprising:
Obtain number of retransmissions of the broadcast packet in the bluetooth Mesh network；
When number of retransmissions of the broadcast packet in the bluetooth Mesh network is greater than preset times, detect described switched
Whether the corresponding signal strength of broadcast channel is less than preset value.
5. a kind of bluetooth Mesh network information transferring method characterized by comprising
When listening to there are when the broadcast packet of the transmission of other bluetooth equipments in the bluetooth Mesh network, the broadcast packet is obtained
Type；
When the type of the broadcast packet, which is, to connect omnidirectional, the first radio-frequency devices of control receive on the first broadcast channel
The broadcast packet, the second radio-frequency devices of control send the broadcast packet, and first broadcast channel on the second broadcast channel
It is different from second broadcast channel.
6. bluetooth Mesh network information transferring method as claimed in claim 5, which is characterized in that controlling the second radio-frequency devices
Before sending the broadcast packet on the second broadcast channel, further includes:
Detect whether the corresponding signal strength of second broadcast channel is less than preset value；
Determine that the corresponding signal strength of second broadcast channel reaches preset duration less than the duration of the preset value.
7. bluetooth Mesh network information transferring method as claimed in claim 6, which is characterized in that further include: when described second
When the corresponding signal strength of broadcast channel is not less than the preset value, third broadcast channel, and the first broadcast letter are switched to
Road, the second broadcast channel and the third broadcast channel are different.
8. bluetooth Mesh network information transferring method as claimed in claim 6, which is characterized in that the second broadcast of detection letter
Whether the corresponding signal strength in road is less than preset value, comprising:
Obtain number of retransmissions of the broadcast packet in the bluetooth Mesh network；
When number of retransmissions of the broadcast packet in the bluetooth Mesh network is greater than preset times, second broadcast is detected
Whether the corresponding signal strength of channel is less than preset value.
9. a kind of bluetooth equipment, the bluetooth equipment is the bluetooth equipment in bluetooth Mesh network, and the bluetooth equipment includes
One radio-frequency head characterized by comprising
Receiving unit, for receiving broadcast packet, the broadcast packet is broadcasted by other bluetooth equipments in the bluetooth Mesh network；
First acquisition unit, for obtaining the type of the broadcast packet；
First switch unit, for when the type of the broadcast packet be can not connect omnidirectional when, using radio frequency switch duration as
Channel transmission interval duration switches broadcast channel；The radio frequency switching duration is less than default interframe space；
First radio unit, for sending the broadcast packet on the broadcast channel switched.
10. bluetooth equipment as claimed in claim 9, which is characterized in that further include: first detection unit, it is described for detecting
Whether the corresponding signal strength of the broadcast channel switched is less than preset value；First radio unit is suitable for described in the determination
It is wide what is switched when the duration that the corresponding signal strength of the broadcast channel switched is less than the preset value reaches preset duration
It broadcasts and sends the broadcast packet on channel.
11. bluetooth equipment as claimed in claim 10, which is characterized in that first switch unit is also used to when the institute
When the corresponding signal strength of the broadcast channel of switching is not less than the preset value, when with radio frequency switching between a length of channel transmitting
Every switching broadcast channel again.
12. bluetooth equipment as claimed in claim 10, which is characterized in that the first detection unit is described wide for obtaining
Broadcast the number of retransmissions wrapped in the bluetooth Mesh network；When number of retransmissions of the broadcast packet in the bluetooth Mesh network
When greater than preset times, detect whether the corresponding signal strength of the switched broadcast channel is less than preset value.
13. a kind of bluetooth equipment, the bluetooth equipment is the bluetooth equipment in bluetooth Mesh network, which is characterized in that the indigo plant
Tooth equipment is provided with the first radio-frequency devices and the second radio-frequency devices；The bluetooth equipment includes:
Monitoring unit, for monitoring the broadcast packet of the transmission of other bluetooth equipments in the bluetooth Mesh network；
Second acquisition unit, for obtaining the type for the broadcast packet that the monitoring unit listens to；
Control unit, for when the type of the broadcast packet, which is, to connect omnidirectional, controlling the first radio-frequency devices first
The broadcast packet is received on broadcast channel, the second radio-frequency devices of control send the broadcast packet on the second broadcast channel；It is described
First broadcast channel is different from second broadcast channel.
14. bluetooth equipment as claimed in claim 13, which is characterized in that further include: second detection unit, it is described for detecting
Whether the corresponding signal strength of the second broadcast channel is less than preset value；Described control unit is also used to when the second broadcast letter
When the duration that the corresponding signal strength in road is less than the preset value reaches preset duration, institute is sent on second broadcast channel
State broadcast packet.
15. bluetooth equipment as claimed in claim 14, which is characterized in that further include: the second switch unit, for when described the
When the corresponding signal strength of two broadcast channels is not less than the preset value, third broadcast channel, and first broadcast are switched to
Channel, the second broadcast channel and the third broadcast channel are different.
16. bluetooth equipment as claimed in claim 14, which is characterized in that the second detection unit is described wide for obtaining
Broadcast the number of retransmissions wrapped in the bluetooth Mesh network；When number of retransmissions of the broadcast packet in the bluetooth Mesh network
When greater than preset times, detect whether the corresponding signal strength of second broadcast channel is less than preset value.
17. a kind of computer storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction operation
When perform claim require 1~4 described in any item bluetooth Mesh network information transferring methods the step of.
18. a kind of computer storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction operation
When perform claim require 5~8 described in any item bluetooth Mesh network information transferring methods the step of.
19. a kind of bluetooth equipment, including memory and processor, it is stored with and can runs on the processor on the memory
Computer instruction, the computer instruction run when perform claim require 1~4 described in any item bluetooth Mesh network information
The step of transmission method.
20. a kind of bluetooth equipment, including memory and processor, it is stored with and can runs on the processor on the memory
Computer instruction, the computer instruction run when perform claim require 5~8 described in any item bluetooth Mesh network information
The step of transmission method.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910803896.XA CN110536251B (en) | 2017-09-12 | 2017-09-12 | Bluetooth device, Bluetooth Mesh network information transmission method and readable storage medium |
| CN201710818002.5A CN109495866B (en) | 2017-09-12 | 2017-09-12 | Bluetooth device, Bluetooth Mesh network information transmission method and readable storage medium |
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| CN201710818002.5A CN109495866B (en) | 2017-09-12 | 2017-09-12 | Bluetooth device, Bluetooth Mesh network information transmission method and readable storage medium |
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| CN201910803896.XA Division CN110536251B (en) | 2017-09-12 | 2017-09-12 | Bluetooth device, Bluetooth Mesh network information transmission method and readable storage medium |
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| CN201910803896.XA Active CN110536251B (en) | 2017-09-12 | 2017-09-12 | Bluetooth device, Bluetooth Mesh network information transmission method and readable storage medium |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109495866B (en) | 2021-09-07 |
| CN110536251B (en) | 2021-11-12 |
| CN110536251A (en) | 2019-12-03 |
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