CN106993261A - A kind of low-power consumption bluetooth data communications method, equipment and system - Google Patents

A kind of low-power consumption bluetooth data communications method, equipment and system Download PDF

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Publication number
CN106993261A
CN106993261A CN201611139734.3A CN201611139734A CN106993261A CN 106993261 A CN106993261 A CN 106993261A CN 201611139734 A CN201611139734 A CN 201611139734A CN 106993261 A CN106993261 A CN 106993261A
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China
Prior art keywords
data
broadcast
sent
packet
bag
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CN201611139734.3A
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Chinese (zh)
Inventor
谢鸿洋
符运河
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ZHUHAI HUANGRONG INTEGRATED CIRCUIT TECHNOLOGY Co Ltd
Jian Rong Semiconductor (shenzhen) Co Ltd
Jianrong Integrated Circuit Technology Zhuhai Co Ltd
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Application filed by ZHUHAI HUANGRONG INTEGRATED CIRCUIT TECHNOLOGY Co Ltd, Jian Rong Semiconductor (shenzhen) Co Ltd, Jianrong Integrated Circuit Technology Zhuhai Co Ltd filed Critical ZHUHAI HUANGRONG INTEGRATED CIRCUIT TECHNOLOGY Co Ltd
Priority to CN201611139734.3A priority Critical patent/CN106993261A/en
Publication of CN106993261A publication Critical patent/CN106993261A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

Embodiment of the present invention discloses a kind of low-power consumption bluetooth data communications method, including:Obtain data to be sent;The data to be sent are carried on broadcast bag data, and sent by broadcast channel, wherein, the data to be sent are carried by the reserved field in the broadcast bag data.The beneficial effect of embodiment of the present invention is:The situation of prior art is different from, embodiment of the present invention communicates for the unidirectional small data quantity not required privacy, can carried out directly in broadcast channel.Resting state so can be kept when no data need transmission, so as to reach the purpose for saving electricity.

Description

A kind of low-power consumption bluetooth data communications method, equipment and system
Technical field
Embodiment of the present invention is related to Bluetooth technology field, more particularly to a kind of low-power consumption bluetooth data communications method, Equipment and system.
Background technology
Bluetooth (Bluetooth):It is a kind of wireless technology standard, fixing equipment, mobile device and building can be achieved personal Short-range data between the net of domain is exchanged (using the UHF radio waves of 2.4~2.485GHz ISM band).Bluetooth technology is most Just formulated by telecommunications giant Ericsson in 1994, be the alternative solution as RS232 data wires at that time.Bluetooth can be connected Multiple equipment, overcomes the problem of data syn-chronization.
In traditional Bluetooth communication, generally require to set up connection between two electronic equipments with blue tooth interface, Data channel is set up, is carried out data transmission by the data channel of the foundation.During carrying out data transmission, pass through indigo plant The data of transmission are encrypted tooth wireless interaction public key, and so Yi Dan opening after encryption, miscellaneous equipment is to be intercepted Communication between two bluetooth equipments.
This Bluetooth communication method can directly dock two bluetooth equipments, high with transmission stability, the features such as safe. But this Blue-tooth communication method needs that electronic equipment is kept into Bluetooth communication connection always, and such a Blue-tooth communication method communicates It is complex, often compare consumption electricity.When carrying out the small data transmission not high to security requirement, often do not apply to.
The content of the invention
Embodiment of the present invention provides kind of low-power consumption bluetooth data communications method, equipment and a system, and communication is simple, saves Electric energy.
In order to solve the above technical problems, the technical scheme that embodiment of the present invention is used is:A kind of low-power consumption bluetooth Data communications method, including:
Data to be sent are obtained,
The data to be sent are carried on broadcast bag data, and sent by broadcast channel, wherein, the number to be sent Carried according to by the reserved field in the broadcast bag data.
Embodiment of the present invention use another technical scheme be:A kind of low-power consumption bluetooth data communications method, including:
Scan broadcast singal;
The broadcast packet in the broadcast channel of broadcast singal is obtained, and further obtains the data in broadcast packet, wherein, it is described Data in broadcast bag data are carried by reserved field.
Embodiment of the present invention use another technical scheme be:A kind of low-power consumption bluetooth processing equipment is provided, including:
First process chip, for obtaining data to be sent;
First radio circuit, for the data to be sent to be carried on into broadcast bag data, and is sent by broadcast channel, Wherein, the data to be sent are carried by the reserved field in the broadcast bag data.
Embodiment of the present invention use another technical scheme be:A kind of low-power consumption bluetooth processing equipment is provided, it is wrapped Include:
Second radio circuit, for scanning broadcast singal;
Second radio circuit is additionally operable to obtain the broadcast packet in the broadcast channel of broadcast singal, and further obtains wide The data in bag are broadcast, wherein, the data in the broadcast bag data are carried by reserved field.
Embodiment of the present invention use another technical scheme be:A kind of low-power consumption bluetooth communication system is provided, it is wrapped Include slave unit and main equipment;
Slave unit includes:First process chip and the first radio circuit;
First process chip, for obtaining data to be sent;The triggering from button or the triggering of event are received, institute is obtained State button triggering or the corresponding director data of event triggering;
First radio circuit, for the data to be sent to be carried on into broadcast bag data, and is sent by broadcast channel, Wherein, the data to be sent are carried by the reserved field in the broadcast bag data;
First radio circuit, is additionally operable to receive the response bag that main equipment is sent;After receiving the response bag, then this Communications reception, slave unit enters park mode, does not such as receive response bag, then slave unit proceeds scan operation;
First process chip is additionally operable to wake up from resting state, into working condition;
Main equipment includes:Second radio circuit and second processing chip;
Second radio circuit, for scanning broadcast singal;
Second radio circuit, is additionally operable to obtain the broadcast packet in the broadcast channel of broadcast singal, and further obtains broadcast Data in bag, wherein, the data in the broadcast bag data are carried by reserved field.
The beneficial effect of embodiment of the present invention is:The situation of prior art is different from, embodiment of the present invention is for right The unidirectional small data quantity communication that privacy is not required, can be carried out directly in broadcast channel.So need to pass in no data Resting state can be kept when sending, so as to reach the purpose for saving electricity.
Brief description of the drawings
Fig. 1 is application scenarios schematic diagram provided in an embodiment of the present invention;
Fig. 2 is a kind of flow chart for low-power consumption bluetooth communication means that real first embodiment of the invention is provided;
Fig. 3 is the structural representation of broadcast packet provided in an embodiment of the present invention;
Fig. 4 is the structural representation of the specified packet of manufacturer shown in Fig. 3;
Fig. 5 is the structural representation of the head field shown in Fig. 4;
Fig. 6 is a kind of flow chart for low-power consumption bluetooth communication means that second embodiment of the invention is provided;
Fig. 7 is a kind of structural representation for low-power consumption bluetooth slave unit that third embodiment of the invention is provided;
Fig. 8 is a kind of structural representation for low-power consumption bluetooth main equipment that fourth embodiment of the invention is provided;
Fig. 9 is a kind of structural representation for low-power consumption bluetooth communication system that fifth embodiment of the invention is provided;
Figure 10 is a kind of structural scheme of mechanism for bluetooth equipment that the present invention is provided.
Embodiment
In order that the object, technical solution and advantage of the application are more clearly understood, it is real below in conjunction with accompanying drawing and the application Example is applied, the application is further elaborated.It should be appreciated that specific the embodiment of the present application described herein is only to solve The application is released, is not used to limit the application.
Fig. 1 is that the embodiment of the present application provides a kind of possible application scene of low-power consumption bluetooth data communications method.At some Possible application scene, as shown in figure 1, the application scenarios include intelligent bulbs 11, smart mobile phone 12.Smart mobile phone 12 obtains pending The data sent, and by the way that the data are carried on into broadcast data packet, and sent by broadcast channel.Intelligent bulbs 11 are scanned simultaneously The packet in broadcast channel is obtained, parsing packet is instructed, and the corresponding operation of execute instruction.Example, intelligent hand Machine 12 obtains the instruction turned on light, and the data turned on light are carried in broadcast data packet, then sent by broadcast channel.Intelligent lamp Bubble 11 scans and receives the data in broadcast channel, is instructed after parsing packet, and execute instruction is to be turned on light.
In the prior art, bulb need to such as be opened, then needs smart mobile phone 12 being connected pass with intelligent bulbs foundation System, smart mobile phone 12 is ceaselessly shaken hands with the both sides of intelligent bulbs 11, to ensure both sides all in connection communication state, rather than Disconnect connectionless state.Communication process has a ciphering process, by bluetooth wireless interaction public key, to obtain a private key Ciphering process is reached, so Yi Dan opening after encryption, miscellaneous equipment is can not to carry out intercepting the communication between bluetooth.So Communication is safer, but brings the problem of power consumption is larger.
Referring again to Fig. 1, in the possible application scene that the embodiment of the present application is provided, obtain pending by smart mobile phone 12 The data sent, and by the way that the data are carried on into broadcast data packet, and sent by broadcast channel.Intelligent bulbs 11 are scanned simultaneously The packet in broadcast channel is obtained, parsing packet is instructed, and receives smart mobile phone after the corresponding operation of execute instruction 12 packets replied enter resting state.Therefore, using this method, lead to for the unidirectional small data quantity not required privacy Letter, can be carried out directly in broadcast channel.So intelligent bulbs can keep resting state when no data need transmission, So as to reach the purpose for saving electricity.
Embodiment one
Refering to Fig. 2, the first embodiment of the present invention there is provided a kind of low-power consumption bluetooth data communications method, methods described Executive agent is slave unit, and methods described includes:
Step 21:Obtain data to be sent;
The triggering from button or the triggering of event are received, the button triggering or the corresponding finger of event triggering is obtained Make data.
Example, obtaining some needs the information of interaction, such as presses some key, and then sends trigger signal, then obtains The key assignments of this key, the key assignments is the data to be sent obtained.Or voice signal is checked, the voice signal enters to act Part is triggered, and obtains the content of voice signal, and the content of the voice signal is the data to be sent obtained.
Step 22:The data to be sent are carried on broadcast bag data, and sent by broadcast channel, wherein, it is described Data to be sent are carried by the reserved field in the broadcast bag data.
Refering to Fig. 3, the broadcast packet is advertising bags, and it includes preceding top guide (Preamble), synchronous head (Access Address), protocol Data Unit (PDU) and check word (CRC).
The size of the preceding top guide is 1 byte, for carrying for synchronous information.
The size of the synchronous head is 4 bytes, the address information for carrying digital channel, and the value of the address information is Fixed.It is known that the packet for carrying the address information is advertising bags by the address information, by not Same digital channel numerical value can distinguish different communication equipment.
The size of the protocol Data Unit can be 2 bytes to 257 bytes.
The protocol Data Unit further comprises:Packet header (Header) and packet (payload).
The packet header further comprises:Packet type, the first reserved field, transmission address style, reception address style, length Section and the second reserved field.
The size of the Packet type is 4, and entrained information is used for the type for representing broadcast packet.First reserved word Section is system default field, and its size is 2.The size for sending address style is 1, and entrained information is used to represent Send the type of the address of equipment.The size for receiving address style is 1, and entrained information is used to represent receiving device Address type.The size of the length section is 6, and entrained information table shows the length of packet.Described second retains Field is system default field, and its size is 2.
Further, the Packet type includes:ADV_IND、ADV_DIRECT_IND、ADV_NONCONN_IND、SCAN_ REQ、SCAN_RSP、CONNECT_REQ、ADV_SCAN_IND.The ADV_IND is when the value of Packet type is set into 0000 Type.The ADV_DIRECT_IND is the type when value of Packet type is set into 0001.The ADV_NONCONN_IND is The type when value of Packet type is set into 0010.The SCAN_REQ is the type when value of Packet type is set into 0011. The SCAN_REQ is the type when value of Packet type is set into 0100.The ADV_SCAN_IND is to set the value of Packet type Type when being set to 0110.
The size of the packet can be 0 to 255 byte, and it further comprises:Broadcast address section and inclusive segment.Institute The size for stating broadcast address is 6 bytes, and entrained information is used for the address information for representing the passage of broadcast.The inclusive segment Size is 0 byte to 31 bytes, the information that entrained information sends for needs.
The size of the check word is 3 bytes, and entrained information is used for the accuracy for detecting transmission data.
When needing by broadcast transmission data, by the protocol Data Unit middle wrapping head in above-mentioned advertising bags Packet type is set to 0000, Packet type is set to ADV_IND, can illustrate that this equipment is with attachable information for broadcasting It can be connected, and the address of the physics with this equipment in the broadcast.
The data message sent is needed to be included among the inclusive segment, refering to Fig. 4, the inclusive segment further comprises factory Business specifies packet (Manufacturer Specific Data).The manufacturer formulates packet and further comprised:Length section, Type section, vendor id, head field and data segment need to be sent.
The size of the length section is 1 byte, for representing that manufacturer formulates the length of packet data.The type section Size is 1 byte, and entrained information is used for the type for representing that manufacturer formulates packet.The size of the head field is 1 byte. The size of the vendor id is 2 bytes.
The reserved field need to send data segment to be described, and it is used to carry the data message that need to be sent.Example, it is necessary to The director data of transmission, such as:The data such as turn on light, turn off the light, which are all deposited in, described need to send data segment.Data to be sent are then to need hair Send the data carried in data segment.
The value of the type section is preset as " 0xFF ".
Refering to Fig. 5, the head field further comprises:Model selection section (Mode enable) and several sections of series (Sequence Number)。
The size of the model selection section is 1, when its value is 0, illustrates that communication pattern is not opened, must be by common mode Reason need to send the content entrained by data segment.When its value is 1, then it represents that data below are the contents of communication, parse the institute The content of data segment need to be sent by stating, and parsing obtains operational order, and control signal is sent according to the operational order.
When sending data by broadcast channel, led to by choosing the channel of 3 2.4G specified in Bluetooth protocol Letter, can only send advertising bags on 3 channels, and 3 channels are 37,38,39 channels.
Rf channel Rf frequency Broadcast channel label
0 2402MHz 37
12 2426MHz 38
39 2480MHz 39
As described in upper table, the rf frequency of rf channel 0 is 2402MHZ, and its broadcast channel is marked as 37;Rf channel 12 Rf frequency be 2426MHZ, its broadcast channel is marked as 38;The rf frequency of rf channel 39 is 2480MHZ, and it broadcasts letter Track label is 39.
In these three above-mentioned physical channels, one or more is arbitrarily chosen, for broadcasting.Identical broadcast data, In each broadcast channel by, only send once.
The data to be sent are being carried on broadcast bag data, and also include after being sent by broadcast channel:Receive The response bag that main equipment is sent.After receiving the response bag, then this communications reception, slave unit enters park mode, such as Response bag is not received, then slave unit proceeds scan operation.
Also include before the data to be sent are carried on into broadcast bag data, and are sent by broadcast channel:From not Waken up in dormancy state, into working condition.
Bluetooth connection is divided into connection status and connectionless state.Communicating pair is needed not stop to be held in connection status Hand, to ensure both sides all in connection communication state, rather than disconnects connectionless state.Connectionless state is typically exactly one section of dormancy Time, then recur and communicate, and dormancy time can be carried out according to the situation for needing power saving it is self-defined, it is necessary to can be with during many power savings Many dormancy are for a period of time.
Described waken up from resting state includes:Timing wake-up and event wake up.
The timing wake-up is one preset time of setting, after a preset time period, actively from resting state It is middle to wake up.The preset time is the random times such as 1ms, 1s, 2s.Example, preset time is 1s, carry out communication one section when Between, sleep a preset time period, sleep 1s after, from resting state wake up, into working condition.
The event triggering that the event wakes up to be occurred, working condition is entered from resting state.Example, press certain Individual key, and then trigger signal is sent, the action pushed button triggers for event, receives the trigger signal of the event, from Resting state enters working condition.Or voice signal is checked, the voice signal carries out event triggering, from resting state Enter working condition.
Therefore, using this method, communicated for the unidirectional small data quantity not required privacy, can be directly in broadcast letter Carried out in road.Resting state so can be kept when no data need transmission, so as to reach the purpose for saving electricity.
Embodiment two
Refering to Fig. 6, the second embodiment of the present invention there is provided a kind of low-power consumption bluetooth data communications method, methods described Executive agent is main equipment, and methods described includes:
Step 61:Scan broadcast singal;
The scanning broadcast singal is regularly to be scanned broadcast singal.When pre-setting one scan period and interval Between section, after sweep time section is scanned across, be scanned again after the section cycle one interval time of interval.Example, it is described Sweep time section is 1s, and interval time section is 5ms, then is scanned 1s, after the 5ms of interval, is scanned, follows repeatedly again Ring.Alternatively, interval time section can be set to 0, then persistently carries out the scanning of broadcast singal.
Step 62:The broadcast packet in the broadcast channel of broadcast singal is obtained, and further obtains the data in broadcast packet, its In, the data in the broadcast bag data are carried by reserved field.
Refering to Fig. 3, the broadcast packet is advertising bags, and it includes preceding top guide (Preamble), synchronous head (Access Address), protocol Data Unit (PDU) and check word (CRC).
The size of the preceding top guide is 1 byte, for carrying for synchronous information.
The size of the synchronous head is 4 bytes, the address information for carrying digital channel, and the value of the address information is Fixed.It is known that the packet for carrying the address information is advertising bags by the address information, by not Same digital channel numerical value can distinguish different communication equipment.
The size of the protocol Data Unit can be 2 bytes to 257 bytes.
The protocol Data Unit further comprises:Packet header (Header) and packet (payload).
The packet header further comprises:Packet type, the first reserved field, transmission address style, reception address style, length Section and the second reserved field.
The size of the Packet type is 4, and entrained information is used for the type of Presentation protocol data unit.Described first Reserved field is system default field, and its size is 2.The size for sending address style is 1, and entrained information is used Type in the address for representing to send equipment.The size for receiving address style is 1, and entrained information connects for expression The type of the address of receiving unit.The size of the length section is 6, and entrained information table shows the length of packet.Described Two reserved fields are system default field, and its size is 2.
Further, the Packet type includes:ADV_IND、ADV_DIRECT_IND、ADV_NONCONN_IND、SCAN_ REQ、SCAN_RSP、CONNECT_REQ、ADV_SCAN_IND.The ADV_IND is when the value of Packet type is set into 0000 Type.The ADV_DIRECT_IND is the type when value of Packet type is set into 0001.The ADV_NONCONN_IND is The type when value of Packet type is set into 0010.The SCAN_REQ is the type when value of Packet type is set into 0011. The SCAN_REQ is the type when value of Packet type is set into 0100.The ADV_SCAN_IND is to set the value of Packet type Type when being set to 0110.
The size of the packet can be 0 to 255 byte, and it further comprises:Broadcast address section and inclusive segment.Institute The size for stating broadcast address is 6 bytes, and entrained information is used for the address information for representing the passage of broadcast.The inclusive segment Size is 0 byte to 31 bytes, the information that entrained information sends for needs.
The size of the check word is 3 bytes, and entrained information is used for the accuracy for detecting transmission data.
When scanning and obtaining the data of broadcast singal transmission, wrapped in the protocol Data Unit in above-mentioned advertising bags The Packet type of head is set to 0000, and Packet type is set to ADV_IND, can illustrate this equipment with attachable information for broadcasting It can be connected, and the address of the physics with this equipment in the broadcast.
The data message of reception is included among the inclusive segment, and refering to Fig. 4, the inclusive segment further comprises that manufacturer refers to Determine packet (Manufacturer Specific Data).The manufacturer formulates packet and further comprised:Length section, type Section, vendor id, head field and data segment need to be sent.
The size of the length section is 1 byte, for representing that manufacturer formulates the length of packet data.The type section Size is 1 byte, and entrained information is used for the type for representing that manufacturer formulates packet.The size of the head field is 1 byte. The size of the vendor id is 2 bytes.
The reserved field need to send data segment to be described, and it is used to carry the data message that need to be sent.Example, it is necessary to The director data of transmission, such as:The data such as turn on light, turn off the light, which are all deposited in, described need to send data segment.
The value of the type section is preset as " 0xFF ".
Refering to Fig. 5, the head field further comprises:Model selection section (Mode enable) and several sections of series (Sequence Number)。
The size of the model selection section is 1, when its value is 0, illustrates that communication pattern is not opened, must be by common mode Reason need to send the content entrained by data segment.When its value is 1, then it represents that data below are the contents of communication, parse the institute The content of data segment need to be sent by stating, and parsing obtains operational order, and control signal is sent according to the operational order.
When obtaining the data of broadcast channel, communicated by the channel from 3 2.4G specified in Bluetooth protocol, only Advertising bags can be obtained from 3 channels, 3 channels are 37,38,39 channels.
Rf channel Rf frequency Broadcast channel label
0 2402MHz 37
12 2426MHz 38
39 2480MHz 39
As described in upper table, the rf frequency of rf channel 0 is 2402MHZ, and its broadcast channel is marked as 37;Frequency domain channel 12 Rf frequency is 2426MHZ, and its broadcast channel is marked as 38;The rf frequency of frequency domain channel 39 is 2480MHZ, its broadcast channel mark Number be 39.
In these three above-mentioned physical channels, one or more is arbitrarily chosen, for broadcasting.Identical broadcast data, In each broadcast channel by, only send once.
Broadcast packet in the broadcast channel for obtaining broadcast singal, and further after the data in acquisition broadcast packet, also Including:Whether the value of judgment model selection section is 1, when the value of such as model selection section is 1, sends response bag to slave unit.From setting It is standby receive the response bag after, into park mode, such as do not receive response bag, then slave unit proceeds scanning broadcast letter Number.When value such as model selection section is 0, then the step of repeat step 61, are scanned broadcast singal again.
After response bag to slave unit is sent, analysis judgement is carried out to several sections of numerical value of series, is such as judged as correct Serial number, then parse to the data in the broadcast packet of reception.Such as it is judged as incorrect serial number, then repeat step 61 Step, is scanned broadcast singal again.
Therefore, using this method, communicated for the unidirectional small data quantity not required privacy, can be directly in broadcast letter Carried out in road.Resting state so can be kept when no data need transmission, so as to reach the purpose for saving electricity.
Embodiment three
Refering to Fig. 7, there is provided a kind of low-power consumption bluetooth data communication slave unit, methods described for the third embodiment of the present invention Including:
First process chip 71:For obtaining data to be sent;
The triggering from button or the triggering of event are received, the button triggering or the corresponding finger of event triggering is obtained Make data.
Example, obtaining some needs the information of interaction, such as presses some key, and then sends trigger signal, then obtains The key assignments of this key, the key assignments is the data to be sent obtained.Or voice signal is checked, the voice signal enters to act Part is triggered, and obtains the content of voice signal, and the content of the voice signal is the data to be sent obtained.
First radio circuit 72:The data to be sent are carried on broadcast bag data, and sent by broadcast channel, its In, the data to be sent are carried by the reserved field in the broadcast bag data.
Refering to Fig. 3, the broadcast packet is advertising bags, and it includes preceding top guide (Preamble), synchronous head (Access Address), protocol Data Unit (PDU) and check word (CRC).
The size of the preceding top guide is 1 byte, for carrying for synchronous information.
The size of the synchronous head is 4 bytes, the address information for carrying digital channel, and the value of the address information is Fixed.It is known that the packet for carrying the address information is advertising bags by the address information, by not Same digital channel numerical value can distinguish different communication equipment.
The size of the protocol Data Unit can be 2 bytes to 257 bytes.
The protocol Data Unit further comprises:Packet header (Header) and packet (payload).
The packet header further comprises:Packet type, the first reserved field, transmission address style, reception address style, length Section and the second reserved field.
The size of the Packet type is 4, and entrained information is used for the type of Presentation protocol data unit.Described first Reserved field is system default field, and its size is 2.The size for sending address style is 1, and entrained information is used Type in the address for representing to send equipment.The size for receiving address style is 1, and entrained information connects for expression The type of the address of receiving unit.The size of the length section is 6, and entrained information table shows the length of packet.Described Two reserved fields are system default field, and its size is 2.
Further, the Packet type includes:ADV_IND、ADV_DIRECT_IND、ADV_NONCONN_IND、SCAN_ REQ、SCAN_RSP、CONNECT_REQ、ADV_SCAN_IND.The ADV_IND is when the value of Packet type is set into 0000 Type.The ADV_DIRECT_IND is the type when value of Packet type is set into 0001.The ADV_NONCONN_IND is The type when value of Packet type is set into 0010.The SCAN_REQ is the type when value of Packet type is set into 0011. The SCAN_REQ is the type when value of Packet type is set into 0100.The ADV_SCAN_IND is to set the value of Packet type Type when being set to 0110.
The size of the packet can be 0 to 255 byte, and it further comprises:Broadcast address section and inclusive segment.Institute The size for stating broadcast address is 6 bytes, and entrained information is used for the address information for representing the passage of broadcast.The inclusive segment Size is 0 byte to 31 bytes, the information that entrained information sends for needs.
The size of the check word is 3 bytes, and entrained information is used for the accuracy for detecting transmission data.
When needing by broadcast transmission data, by the protocol Data Unit middle wrapping head in above-mentioned advertising bags Packet type is set to 0000, Packet type is set to ADV_IND, can illustrate that this equipment is with attachable information for broadcasting It can be connected, and the address of the physics with this equipment in the broadcast.
The data message sent is needed to be included among the inclusive segment, refering to Fig. 4, the inclusive segment further comprises factory Business specifies packet (Manufacturer Specific Data).The manufacturer formulates packet and further comprised:Length section, Type section, vendor id, head field and data segment need to be sent.
The size of the length section is 1 byte, for representing that manufacturer formulates the length of packet data.The type section Size is 1 byte, and entrained information is used for the type for representing that manufacturer formulates packet.The size of the head field is 1 byte. The size of the vendor id is 2 bytes.
The reserved field need to send data segment to be described, and it is used to carry the data message that need to be sent.Example, it is necessary to The director data of transmission, such as:The data such as turn on light, turn off the light, which are all deposited in, described need to send data segment.
The value of the type section is preset as " 0xFF ".
Refering to Fig. 5, the head field further comprises:Model selection section (Mode enable) and several sections of series (Sequence Number)。
The size of the model selection section is 1, when its value is 0, illustrates that communication pattern is not opened, must be by common mode Reason need to send the content entrained by data segment.When its value is 1, then it represents that data below are the contents of communication, parse the institute The content of data segment need to be sent by stating, and parsing obtains operational order, and control signal is sent according to the operational order.
When sending data by broadcast channel, led to by choosing the channel of 3 2.4G specified in Bluetooth protocol Letter, can only send advertising bags on 3 channels, and 3 channels are 37,38,39 channels.
Rf channel Rf frequency Broadcast channel label
0 2402MHz 37
12 2426MHz 38
39 2480MHz 39
As described in upper table, the rf frequency of rf channel 0 is 2402MHZ, and its broadcast channel is marked as 37;Frequency domain channel 12 Rf frequency is 2426MHZ, and its broadcast channel is marked as 38;The rf frequency of frequency domain channel 39 is 2480MHZ, its broadcast channel mark Number be 39.
In these three above-mentioned physical channels, one or more is arbitrarily chosen, for broadcasting.Identical broadcast data, In each broadcast channel by, only send once.
Alternatively, the first radio circuit 72 is additionally operable to receive the response bag that main equipment is sent.Receive the response bag it Afterwards, then this communications reception, slave unit enters park mode, does not such as receive response bag, then slave unit proceeds scan operation.
Alternatively, the first process chip 71 is additionally operable to wake up from resting state, into working condition.
Bluetooth connection is divided into connection status and connectionless state.Communicating pair is needed not stop to be held in connection status Hand, to ensure both sides all in connection communication state, rather than disconnects connectionless state.Connectionless state is typically exactly one section of dormancy Time, then recur and communicate, and dormancy time can be carried out according to the situation for needing power saving it is self-defined, it is necessary to can be with during many power savings Many dormancy are for a period of time.
The timing wake-up submodule is used to set a preset time, after a preset time period, actively from Waken up in resting state.The preset time is the random times such as 1ms, 1s, 2s.Example, preset time is 1s, is being led to After letter a period of time, a preset time period of sleeping, sleep 1s, waken up from resting state, into working condition.
The event wakes up submodule, and when the event for being occurred is triggered, working condition is entered from resting state.Show Example, some key is pressed, and then trigger signal is sent, the action pushed button triggers for event, receives the event Trigger signal, working condition is entered from resting state.Or voice signal is checked, the voice signal carries out event and touched Hair, working condition is entered from resting state.
Therefore, using this method, communicated for the unidirectional small data quantity not required privacy, can be directly in broadcast letter Carried out in road.Resting state so can be kept when no data need transmission, so as to reach the purpose for saving electricity.
Example IV
Refering to Fig. 8, the fourth embodiment of the present invention there is provided a kind of low-power consumption bluetooth primary data communication device, including:
Second radio circuit 81:For scanning broadcast singal;
The scanning broadcast singal is regularly to be scanned broadcast singal.When pre-setting one scan period and interval Between section, after sweep time section is scanned across, be scanned again after the section cycle one interval time of interval.Example, it is described Sweep time section is 1s, and interval time section is 5ms, then is scanned 1s, after the 5ms of interval, is scanned, follows repeatedly again Ring.Alternatively, interval time section can be set to 0, then persistently carries out the scanning of broadcast singal.
Second radio circuit 81 is additionally operable to obtain the broadcast packet in the broadcast channel of broadcast singal, and further obtains broadcast Data in bag, wherein, the data in the broadcast bag data are carried by reserved field.
The reserved field is advertising bags, and it includes preceding top guide (Preamble), synchronous head (Access Address), protocol Data Unit (PDU) and check word (CRC).
The size of the preceding top guide is 1 byte, for carrying for synchronous information.
The size of the synchronous head is 4 bytes, the address information for carrying digital channel, and the value of the address information is Fixed.It is known that the packet for carrying the address information is advertising bags by the address information, by not Same digital channel numerical value can distinguish different communication equipment.
The size of the protocol Data Unit can be 2 bytes to 257 bytes.
The protocol Data Unit further comprises:Packet header (Header) and packet (payload).
The packet header further comprises:Packet type, the first reserved field, transmission address style, reception address style, length Section and the second reserved field.
The size of the Packet type is 4, and entrained information is used for the type of Presentation protocol data unit.Described first Reserved field is system default field, and its size is 2.The size for sending address style is 1, and entrained information is used Type in the address for representing to send equipment.The size for receiving address style is 1, and entrained information connects for expression The type of the address of receiving unit.The size of the length section is 6, and entrained information table shows the length of packet.Described Two reserved fields are system default field, and its size is 2.
Further, the Packet type includes:ADV_IND、ADV_DIRECT_IND、ADV_NONCONN_IND、SCAN_ REQ、SCAN_RSP、CONNECT_REQ、ADV_SCAN_IND.The ADV_IND is when the value of Packet type is set into 0000 Type.The ADV_DIRECT_IND is the type when value of Packet type is set into 0001.The ADV_NONCONN_IND is The type when value of Packet type is set into 0010.The SCAN_REQ is the type when value of Packet type is set into 0011. The SCAN_REQ is the type when value of Packet type is set into 0100.The ADV_SCAN_IND is to set the value of Packet type Type when being set to 0110.
The size of the packet can be 0 to 255 byte, and it further comprises:Broadcast address section and inclusive segment.Institute The size for stating broadcast address is 6 bytes, and entrained information is used for the address information for representing the passage of broadcast.The inclusive segment Size is 0 byte to 31 bytes, the information that entrained information sends for needs.
The size of the check word is 3 bytes, and entrained information is used for the accuracy for detecting transmission data.
When scanning and obtaining the data of broadcast singal transmission, wrapped in the protocol Data Unit in above-mentioned advertising bags The Packet type of head is set to 0000, and Packet type is set to ADV_IND, can illustrate this equipment with attachable information for broadcasting It can be connected, and the address of the physics with this equipment in the broadcast.
The data message of reception is included among the inclusive segment, and refering to Fig. 4, the inclusive segment further comprises that manufacturer refers to Determine packet (Manufacturer Specific Data).The manufacturer formulates packet and further comprised:Length section, type Section, vendor id, head field and data segment need to be sent.
The size of the length section is 1 byte, for representing that manufacturer formulates the length of packet data.The type section Size is 1 byte, and entrained information is used for the type for representing that manufacturer formulates packet.The size of the head field is 1 byte. The size of the vendor id is 2 bytes.
The reserved field need to send data segment to be described, and it is used to carry the data message that need to be sent.Example, it is necessary to The director data of transmission, such as:The data such as turn on light, turn off the light, which are all deposited in, described need to send data segment.
The value of the type section is preset as " 0xFF ".
Refering to Fig. 5, the head field further comprises:Model selection section (Mode enable) and several sections of series (Sequence Number)。
The size of the model selection section is 1, when its value is 0, illustrates that communication pattern is not opened, must be by common mode Reason need to send the content entrained by data segment.When its value is 1, then it represents that data below are the contents of communication, parse the institute The content of data segment need to be sent by stating, and parsing obtains operational order, and control signal is sent according to the operational order.
When obtaining the data of broadcast channel, communicated by the channel from 3 2.4G specified in Bluetooth protocol, only Advertising bags can be obtained from 3 channels, 3 channels are 37,38,39 channels.
Rf channel Rf frequency Broadcast channel label
0 2402MHz 37
12 2426MHz 38
39 2480MHz 39
As described in upper table, the rf frequency of rf channel 0 is 2402MHZ, and its broadcast channel is marked as 37;Frequency domain channel 12 Rf frequency is 2426MHZ, and its broadcast channel is marked as 38;The rf frequency of frequency domain channel 39 is 2480MHZ, its broadcast channel mark Number be 39.
In these three above-mentioned physical channels, one or more is arbitrarily chosen, for broadcasting.Identical broadcast data, In each broadcast channel by, only send once.
The low-power consumption bluetooth communication master device also includes:Second processing chip 82, the value of section is selected for judgment model Whether it is 1, when the value of such as model selection section is 1, sends response bag to slave unit.Slave unit is received after the response bag, Into park mode, response bag is not such as received, then slave unit proceeds to scan broadcast singal.Value such as model selection section is 0 When, surface sweeping broadcast singal is carried out again.
Alternatively, second processing chip 82 is additionally operable to after response bag to slave unit is sent, to several sections of numerical value of series Analysis judgement is carried out, is such as judged as correct serial number, then the data in the broadcast packet of reception is parsed.Such as it is judged as not Correct series number, then the step of repeat step 51, are scanned broadcast singal again.
Therefore, using this method, communicated for the unidirectional small data quantity not required privacy, can be directly in broadcast letter Carried out in road.Resting state so can be kept when no data need transmission, so as to reach the purpose for saving electricity.
Embodiment five
Refering to Fig. 9, a kind of low-power consumption bluetooth communication system that the embodiment of the present application is provided, it includes main equipment 91 and from setting Standby 92.
Main equipment includes:Second radio circuit 911 and second processing chip 912.
Second radio circuit 911:For scanning broadcast singal;
Second radio circuit 912 is additionally operable to obtain the broadcast packet in the broadcast channel of broadcast singal, and further obtains wide The data in bag are broadcast, wherein, the data in the broadcast bag data are carried by reserved field.
The main equipment 91 also includes:Second processing chip 912, whether the value that section is selected for judgment model is 1, such as mould When the value of formula selection section is 1, response bag is sent to slave unit.Slave unit is received after the response bag, into park mode, As do not received response bag, then slave unit proceeds to scan broadcast singal.When value such as model selection section is 0, swept again Face broadcast singal.
Alternatively, second processing chip 912 is additionally operable to after response bag to slave unit is sent, to several sections of numerical value of series Analysis judgement is carried out, is such as judged as correct serial number, then the data in the broadcast packet of reception is parsed.Such as it is judged as not Correct series number, then the step of repeat step 51, are scanned broadcast singal again.
Slave unit includes:First process chip 921 and the first radio circuit 922.
First process chip 921:For obtaining data to be sent;
The triggering from button or the triggering of event are received, the button triggering or the corresponding finger of event triggering is obtained Make data.
First radio circuit 922:The data to be sent are carried on broadcast bag data, and sent by broadcast channel, Wherein, the data to be sent are carried by the reserved field in the broadcast bag data.
First radio circuit 922 is additionally operable to receive the response bag that main equipment is sent.After receiving the response bag, then this Secondary communications reception, slave unit enters park mode, does not such as receive response bag, then slave unit proceeds scan operation.
First process chip 921 is additionally operable to wake up from resting state, into working condition.
Therefore, using this method, communicated for the unidirectional small data quantity not required privacy, can be directly in broadcast letter Carried out in road.Resting state so can be kept when no data need transmission, so as to reach the purpose for saving electricity.
Embodiment six
Figure 10 is a kind of hardware of the bluetooth equipment 100 for low-power consumption bluetooth data communications method that the embodiment of the present application is provided Structural representation, as shown in Figure 10, the bluetooth equipment 100 include:
In one or more processors 101, memory 102, radio circuit 103, Figure 10 by taking a processor 101 as an example.
Processor 101 and memory 102 can be connected by bus or other modes, to be connected by bus in Figure 10 Exemplified by.
Memory 102 is as a kind of non-volatile computer readable storage medium storing program for executing, available for storage non-volatile software journey Sequence, non-volatile computer executable program and module.Processor 101 by run storage in the memory 102 it is non-easily The property lost software program, instruction and module, so as to perform various function application and data processing, that is, realize that the above method is implemented A kind of low-power consumption bluetooth data communications method of example.
Memory 102 can include storing program area and storage data field, wherein, storing program area can store operation system Application program required for system, at least one function;Storage data field can be stored to be filled according to a kind of low-power consumption bluetooth data communication That puts uses created data etc..In addition, memory 102 can include high-speed random access memory, it can also include non- Volatile memory, for example, at least one disk memory, flush memory device or other non-volatile solid state memory parts.
One or more of modules are stored in the memory 102, when by one or more of processors During 101 execution, the low-power consumption bluetooth data communications method in above-mentioned any means embodiment is performed, for example, performing above description Fig. 2 in method and step 21, the method and step 61 in Fig. 6.
Radio frequency is the electromagnetic wave that can be used for radio communication with certain wavelength.Radio circuit 103 is for producing radio frequency High-frequency circuit, it is made up of passive element, active device and passive network.The input signal of radio circuit 103 is to pass through One inputs amplification module by matched filter network.Amplification module typically uses the common emitter configuration of transistor, and it inputs resistance It is anti-to match with the output impedance of the wave filter before low-noise amplifier, so as to ensure optimal transmission power and most Small reflectance factor.In addition, the output impedance of low-noise amplifier must match with the frequency mixer input impedance of its rear end, equally It can guarantee that the signal of amplifier output complete, unreflected can be input in frequency mixer.
Radio circuit 103 is used to data being carried on broadcast packet, and is sent by broadcast channel;Or believe from broadcast Broadcast packet is received in road.
Specifically, radio circuit 103 can be used for performing step 22, the step 62 in Fig. 6 in Fig. 2 of foregoing description.
The said goods can perform the method that the embodiment of the present application is provided, and possesses the corresponding functional module of execution method and has Beneficial effect.Not ins and outs of detailed description in the present embodiment, reference can be made to the method that the embodiment of the present application is provided.
The electronic equipment of the embodiment of the present application exists in a variety of forms, includes but is not limited to:
(1) mobile communication equipment:The characteristics of this kind equipment is that possess mobile communication function, and to provide speech, data Communicate as main target.This Terminal Type includes:Smart mobile phone (such as iPhone), multimedia handset, feature mobile phone, and it is low Hold mobile phone etc..
(2) super mobile personal computer equipment:This kind equipment belongs to the category of personal computer, there is calculating and processing work( Can, typically also possess mobile Internet access characteristic.This Terminal Type includes:PDA, MID and UMPC equipment etc., such as iPad.
(3) portable entertainment device:This kind equipment can show and play content of multimedia.The kind equipment includes:Audio, Video player (such as iPod), handheld device, e-book, and intelligent toy and portable car-mounted navigation equipment.
(4) other electronic installations with data interaction function.
The embodiment of the present application provides a kind of non-volatile computer readable storage medium storing program for executing, the computer-readable storage medium Matter is stored with computer executable instructions, and the computer executable instructions are executed by one or more processors, such as in Figure 10 A processor 101, may be such that said one or multiple processors can perform the low-power consumption in above-mentioned any means embodiment Bluetooth data communication method, for example, performing the method and step 61 in the method and step 21 in Fig. 2 described above, Fig. 6.
Device embodiment described above is only schematical, wherein the unit illustrated as separating component can To be or may not be physically separate, the part shown as unit can be or may not be physics list Member, you can with positioned at a place, or can also be distributed on multiple NEs.It can be selected according to the actual needs In some or all of module realize the purpose of this embodiment scheme.
Through the above description of the embodiments, those of ordinary skill in the art can be understood that each embodiment The mode of general hardware platform can be added to realize by software, naturally it is also possible to pass through hardware.Those of ordinary skill in the art can Realize that all or part of flow in above-described embodiment method can be by computer program to instruct the hard of correlation with understanding Part is completed, and described program can be stored in a computer read/write memory medium, the program is upon execution, it may include as above State the flow of the embodiment of each method.Wherein, described storage medium can be magnetic disc, CD, read-only memory (Read- Only Memory, ROM) or random access memory (Random Access Memory, RAM) etc..
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations Technical field, is included within the scope of the present invention.

Claims (17)

1. a kind of low-power consumption bluetooth data communications method, it is characterised in that including:
Data to be sent are obtained,
The data to be sent are carried on broadcast bag data, and sent by broadcast channel, wherein, the data to be sent by Reserved field in the broadcast bag data is carried.
2. according to the method described in claim 1, it is characterised in that obtaining data to be sent includes:Receive touching from button The triggering of hair or event, obtains the button triggering or the corresponding director data of event triggering.
3. according to the method described in claim 1, it is characterised in that the broadcast packet is advertising bags, described Advertising bags include preceding top guide, synchronous head, protocol Data Unit and check word;The protocol Data Unit includes:Factory Business specifies packet, and the manufacturer specifies packet to further comprise:Length section, type section, vendor id, head field and need hair Send data segment;
The reserved field need to send data segment to be described, it is described need to send data segment be used for carry the data message that need to send; Data to be sent are then that need to send the data carried in data segment.
4. the method according to claim 1-3 any claims, it is characterised in that carried by the data to be sent In broadcast bag data, and also include after being sent by broadcast channel:
Receive the response bag that main equipment is sent;
After receiving the response bag, into park mode.
5. method according to claim 4, it is characterised in that the data to be sent are being carried on broadcast bag data, And also include before being sent by broadcast channel:
Waken up from resting state, into working condition;
Described waken up from resting state includes:Timing wake-up or event wake up.
6. a kind of low-power consumption bluetooth data communications method, it is characterised in that including:
Scan broadcast singal;
The broadcast packet in the broadcast channel of broadcast singal is obtained, and further obtains the data in broadcast packet, wherein, the broadcast Data in bag data are carried by reserved field.
7. method according to claim 6, it is characterised in that the scanning broadcast singal includes:Regularly it is scanned Broadcast singal.
8. method according to claim 6, it is characterised in that the broadcast packet is advertising bags, and it includes leading Head, synchronous head, protocol Data Unit and check word;The protocol Data Unit includes:Manufacturer specifies packet, the manufacturer Specified packet further comprises:Length section, type section, vendor id, head field and data segment need to be sent;
The head field further comprises:Model selection section.
9. method according to claim 8, it is characterised in that the broadcast packet in the broadcast channel for obtaining broadcast singal, And further after the data in acquisition broadcast packet, in addition to:Whether the value of judgment model model selection section is 1, such as pattern choosing When the value for selecting section is 1, response bag is sent.
10. method according to claim 9, it is characterised in that also include after response bag is sent:To series several sections Numerical value carries out analysis judgement, is such as judged as correct serial number, then the data in the broadcast packet of reception is parsed.
11. a kind of low-power consumption bluetooth processing equipment, it is characterised in that it includes:
First process chip, for obtaining data to be sent;
First radio circuit, for the data to be sent to be carried on into broadcast bag data, and is sent by broadcast channel, its In, the data to be sent are carried by the reserved field in the broadcast bag data.
12. slave unit according to claim 11, it is characterised in that the first radio circuit is additionally operable to receive main equipment transmission Response bag;After the response bag is received, then this communications reception, slave unit enters park mode, does not such as receive sound It should wrap, then slave unit proceeds scan operation.
13. slave unit according to claim 11, it is characterised in that the first process chip is additionally operable to call out from resting state Wake up, into working condition.
14. a kind of low-power consumption bluetooth processing equipment, it is characterised in that it includes:
Second radio circuit, for scanning broadcast singal;
Second radio circuit is additionally operable to obtain the broadcast packet in the broadcast channel of broadcast singal, and further obtains broadcast packet In data, wherein, it is described broadcast bag data in data carried by reserved field.
15. main equipment according to claim 14, it is characterised in that the main equipment includes well:Second processing chip, is used Whether the value that section is selected in judgment model is 1, when the value of such as model selection section is 1, sends response bag to slave unit.
16. main equipment according to claim 15, it is characterised in that the second processing chip is additionally operable to sending response After bag to slave unit, analysis judgement is carried out to several sections of numerical value of series, is such as judged as correct serial number, then to the wide of reception The data broadcast in bag are parsed.
17. a kind of low-power consumption bluetooth communication system, it is characterised in that including slave unit and main equipment;
Slave unit includes:First process chip and the first radio circuit;
First process chip, for obtaining data to be sent;Receive triggering from button or the triggering of event, obtain described in press Key is triggered or the corresponding director data of event triggering;
First radio circuit, for the data to be sent to be carried on into broadcast bag data, and is sent by broadcast channel, its In, the data to be sent are carried by the reserved field in the broadcast bag data;
First radio circuit, is additionally operable to receive the response bag that main equipment is sent;Receive after the response bag, then this communicates Receive, slave unit enters park mode, such as do not receive response bag, then slave unit proceeds scan operation;
First process chip is additionally operable to wake up from resting state, into working condition;
Main equipment includes:Second radio circuit and second processing chip;
Second radio circuit, for scanning broadcast singal;
Second radio circuit, is additionally operable to obtain the broadcast packet in the broadcast channel of broadcast singal, and further obtain in broadcast packet Data, wherein, it is described broadcast bag data in data carried by reserved field.
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