CN101800575B - Method and device for reducing document transmission energy consumption of bluetooth equipment - Google Patents
Method and device for reducing document transmission energy consumption of bluetooth equipment Download PDFInfo
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- CN101800575B CN101800575B CN2009103099836A CN200910309983A CN101800575B CN 101800575 B CN101800575 B CN 101800575B CN 2009103099836 A CN2009103099836 A CN 2009103099836A CN 200910309983 A CN200910309983 A CN 200910309983A CN 101800575 B CN101800575 B CN 101800575B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a method and a device for reducing the document transmission energy consumption of bluetooth equipment. The method comprises the following steps of: inquiring the state and the transmitted information of the bluetooth equipment in the document transmission process by utilizing a functional inquiry unit; and enabling the bluetooth equipment to be in a low power consumption state according to the state and the energy level of the bluetooth equipment in the communication process. The invention can take measures for correspondingly reducing the energy consumption in time according to the different states and the current electrical energy level of the bluetooth equipment and can effectively save the battery energy consumption of the bluetooth equipment.
Description
Technical field
The present invention relates to a kind of method and device that reduces document transmission energy consumption of bluetooth equipment.
Background technology
Bluetooth is the open global communication standard of the higher short-distance wireless voice of present a kind of technology and the market maturity and data communication.The characteristics such as the device with Bluetooth function has communication convenient, and volume is little easy to carry, and application scenarios is extensive, present mobile device generally all disposes bluetooth as wireless standard.In 2007, Bluetooth SIG issued 2.1 editions safer Bluetooth protocol standards, can estimate that use in bluetooth equipment market will be more wide.
Important function of bluetooth is exactly to carry out the shared transmission of file.Yet portable terminal now all has the limited characteristics of the energy content of battery, along with the abundant and variation of using, so that the problem of device battery energy consumption is very outstanding in the bluetooth document transmission process.Bluetooth equipment is divided into bluetooth master and bluetooth from two roles of equipment in document transmission process, bluetooth master can be simultaneously and 7 bluetooths carry out file transfer from equipment connection.Bluetooth master will be by connecting to the scan for inquiries of other bluetooths in the communication context from equipment.Yet, in the mobile application scenarios of reality, bluetooth master simultaneously and seven bluetooths extremely rare from the situation of equipment connection, be point-to-point transmission in most cases, thereby too much unnecessary inquiry bluetooth has consumed more electric energy from the number of times of equipment.On the other hand, after connecting foundation, but main bluetooth is from the equal transceiving data of equipment, in bluetooth new edition communication criterion, strengthened the function for the file security transmission, therefore the power consumption of bluetooth master role when transfer of data also increases to some extent, in actual applications, after connecting, can adopt role switching process function that the Bluetooth protocol standard provides with bluetooth master switch to bluetooth from equipment to reduce energy consumption.At last, after end of file transfer, in same micro bluetooth network, equipment generally still can periodically send the data query bag to keep and channel synchronization to method, apparatus.Yet this is also also inessential under most of actual conditions, has especially increased unnecessary plant capacity consumption when the equipment electric weight is lower.
Summary of the invention
The too high above-mentioned technical problem of energy consumption the invention provides a kind of method and device that reduces document transmission energy consumption of bluetooth equipment when solving the bluetooth equipment file transfer.
Technical scheme of the present invention may further comprise the steps:
A) utilize functional inquiry unit inquiry bluetooth equipment residing state and transmission information in document transmission process;
B) make bluetooth equipment be in low power consumpting state according to bluetooth equipment residing state and energy level in communication process, its concrete steps comprise:
B1) in the bluetooth master inquiry bluetooth receiver equipment stage, when the bluetooth master battery electric quantity is in high level, but inquired bluetooth from equipment, and the bluetooth of access reaches from number of devices and allows access in limited time, it is zero that the inquiry scan window size is set, and initiatively finishes inquiry scan state;
B2) in the preliminary act transmit stage that connects, when bluetooth equipment was not in the concurrent transmission state of one-to-many, inquiry bluetooth master charge level was when the bluetooth master electric weight is in reduced levels, carry out role switching, bluetooth master is switched to bluetooth from equipment;
B3) send ending phase at file, if the bluetooth equipment electric weight is in low-level state, then initiatively change bluetooth equipment over to the device sleeps holding state.
The method of above-mentioned reduction document transmission energy consumption of bluetooth equipment, described step b1 further comprises:
Before bluetooth master starts other bluetooth equipment of inquiry scan, determine whether bluetooth master has the response bluetooth from the number of devices maximum constraints, and obtain the inquiry scan window size parameter value size that sweep phase pre-sets.
In the method for above-mentioned reduction document transmission energy consumption of bluetooth equipment, described step b2 further comprises:
Before the preliminary act transmission that connects, obtain the pointer value of pointing to this document, and obtain the destination address that this document sends by this pointer, and then definite this document belongs to the concurrent simultaneously situation of transmission of one-to-many that whether exists.
A kind of device that reduces document transmission energy consumption of bluetooth equipment comprises:
One functional inquiry unit; Link to each other with information memory cell with equipment state, be used for inquiring about to equipment state and information memory cell, obtain the residing state of bluetooth equipment and equipment charge level;
One equipment state and information memory cell: be used for the current residing state information of record bluetooth equipment, and bluetooth equipment allows the bluetooth of access from the preset parameter value of the number of devices upper limit and inquiry scan window size;
One pointer value memory cell: be used for the pointer value that file to be sent is pointed in storage, this pointer indicates the destination address value that comprises in the Transmit message wanted;
Reduce the power consumption unit: be used for making bluetooth equipment be in low power consumpting state according to the residing state of bluetooth equipment and equipment charge level, described reduction power consumption unit comprises that inquiry phase reduces the power consumption unit, the file transfer stage is reduced the power consumption unit, the end of transmission stage is reduced the power consumption unit, inquiry phase reduces the power consumption unit, utilize the information of obtaining in the functional inquiry unit to judge current bluetooth equipment state, if in the target device inquiry phase and inquired target device, the bluetooth that the while bluetooth master allows to connect has simultaneously reached the permission upper limit from number of devices, then the inquiry scan window size is set to zero, be that bluetooth equipment initiatively finishes inquiry scan state in zero the situation at this parameter value; The file transfer stage is reduced the power consumption unit, utilizes the information of obtaining in the functional inquiry unit to judge current bluetooth equipment state, if in the file transfer stage and when not existing one-to-many to transmit situation simultaneously, then selecting the lower bluetooth equipment of electric weight is that bluetooth is from equipment; The end of transmission stage is reduced the power consumption unit, utilizes the information of obtaining in the functional inquiry unit to judge current bluetooth equipment state, if transmission has finished and the bluetooth equipment electric weight is in reduced levels, then bluetooth equipment is changed over to the dormancy holding state.
Technique effect of the present invention is: 1) the present invention can initiatively arrange the scanning window size and control in most cases unnecessary inquiry scan number of times when point-to-point transmission, reduces the energy consumption of inquiry scan phase equipment.2) among the present invention when bluetooth equipment is not in the concurrent transmission state of one-to-many, then just call the role switching of bluetooth by the bluetooth equipment battery electric quantity, the energy consumption when reducing low electric weight bluetooth equipment transfer files.3) among the present invention after the end of transmission, if the equipment electric weight is lower, then stops to send out inquiry packet with other equipment periodic and keep synchronously, in time equipment is changed over to the dormancy holding state to reduce the energy consumption of equipment.
The present invention is further illustrated below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the state flow chart of the bluetooth module network configuration in the example of the present invention.
Fig. 2 is flow chart of the present invention.
Fig. 3 is the structure drawing of device of realizing invention.
Embodiment
Specify bluetooth module network configuration part below in conjunction with Fig. 1.
Referring to Fig. 1, shown in Figure 1 is point-to-point bluetooth module network configuration flow chart, and whole layoutprocedure can be divided into three phases substantially: 1) bluetooth master inquiry scan the other side receiving equipment stage; 2) both sides connect, and carry out the file transfer stage; 3) end of transmission stage.Bluetooth master and from equipment all from holding state, this flow process comprises the steps:
101 steps: when bluetooth master A prepared to bluetooth from the equipment B Transmit message, A can enter inquiry scan to the method, apparatus stage, also scanned at this stage A broadcast query packet in communication context whether method, apparatus is existed.
201 steps: after bluetooth receives inquiry packet from equipment B, enter the data query bag that A is replied in query page scanning mode and response, preparation connects.
102 steps: when bluetooth master A receives bluetooth behind the reply data bag of equipment B, set up the communication connection and enter movable bluetooth master state, be ready for sending file to bluetooth from the equipment B request.
202 steps: when bluetooth receive from equipment B bluetooth master A be ready for sending request of data after, response file sends request and also enters the activity bluetooth from equipment state, preparation receives file.
103 steps: after bluetooth master A received that bluetooth is replied from equipment B, transfer files was until end of transmission, and bluetooth master A is in AM(Active Master always in this stage) state.
203 steps: bluetooth begins to receive file until file receives from equipment, is in AS(Active Slave in this stage bluetooth from equipment B always) state.
104 steps: bluetooth master A is after file transfer is complete, if electric weight is in reduced levels, can change the dormancy holding state over to, otherwise enters PM(Park Master) state.
204 steps: bluetooth, if electric weight is in reduced levels, can change dormancy holding state (SB, Stand by) over to, otherwise enter PS state (Park slave) after file transfer is complete from equipment B.
105 steps: bluetooth master A after entering the PM state, will periodically send out packet with keep with bluetooth from equipment B synchronously.
205 steps: bluetooth from equipment B after entering the PM state, will periodically send out packet with keep with bluetooth master A synchronously.
Referring to Fig. 2, Fig. 2 is flow chart of the present invention.
10 steps: when equipment is in inquiry scan (IQ) state, the bluetooth that allows access by functional inquiry unit inquiry bluetooth master is from the number of devices upper limit and the inquiry scan window size size that pre-sets, when having reached the number that allows access from number of devices, the bluetooth that connects prescribes a time limit, then the inquiry scan window size is set to zero, be that bluetooth equipment initiatively finishes inquiry scan state in zero the situation at this parameter value.
20 steps: when bluetooth equipment is in movable bluetooth master (AM) state, by the functional inquiry unit pointer value memory cell is inquired about, to obtain the destination address of file to be sent, judge by destination address whether this document exists the concurrent simultaneously situation of transmission of one-to-many, if there is not the one-to-many concurrent transmission, then the calling function query unit is inquired about the bluetooth master electric weight, if the bluetooth master electric weight is lower, then in transmission course, call the role switching process that bluetooth provides, with bluetooth master switch to bluetooth from equipment to reduce energy consumption.
30 steps: after the end of file transfer, calling function query unit query facility electric weight, if be in higher level, then enter and monitor holding state (PM/PS), if electric weight is in reduced levels, then do not carry out the channel synchronization work with other bluetooth equipments, initiatively enter the dormancy holding state to reduce equipment energy consumption.
Referring to Fig. 3, shown in Figure 3 is the device schematic diagram that reduces document transmission energy consumption of bluetooth equipment, and this apparatus structure comprises: equipment state and information memory cell corresponding to the related several cellular constructions of above-mentioned reduction energy consumption method; The functional inquiry unit; The pointer value memory cell, inquiry phase reduces the power consumption unit; The file transfer stage is reduced the power consumption unit; The end of transmission stage is reduced the power consumption unit; The operation basic procedure of this device comprises the steps:
The A01 step: the functional inquiry unit is inquired about to equipment state and information memory cell, obtains inquiry scan window size and equipment charge level that bluetooth that the bluetooth transmitting apparatus allows access pre-sets from equipment maximum constraints number Xin Xi ﹑; And the current residing state of inquiry bluetooth equipment, change corresponding steps over to according to the residing state of bluetooth equipment and process.
The B01 step: if be in inquiry scan phase, the bluetooth of the permission that then will inquire access is passed to inquiry phase from equipment maximum constraints information of number and the inquiry scan window size information that pre-sets and is reduced the power consumption unit, and triggers this unit;
C01 step: if be in the file transfer stage, then inquire about the pointer value memory cell, obtain the pointer value of pointing to file to be sent, and obtain the destination address that this document sends by this pointer inquiry, judge whether to exist the one-to-many concurrent transmission stage, and the information that inquires is passed to transmit stage reduce the power consumption unit, and trigger this unit;
D01 step: if be in the end of transmission stage, then the equipment charge level information that inquires passed to the end of transmission stage and reduced the power consumption unit, and trigger this unit.
Above-mentioned inquiry phase reduces the power consumption unit, if in the target device inquiry phase and inquired target device, the bluetooth that the while bluetooth master allows to connect has simultaneously reached the permission upper limit from number of devices, and it is zero that the inquiry scan window size then is set, and finishes the equipment query sweep phase.
Above-mentioned file transfer stage is reduced the power consumption unit, if when there is not the situation that one-to-many transmits simultaneously in the file transfer stage, then calls the bluetooth role switching process bluetooth master that electric weight is lower and switch to bluetooth from equipment.
Above-mentioned end of transmission stage is reduced the power consumption unit, if transmission has finished and the equipment electric weight is in reduced levels, does not then carry out the channel synchronization with other equipment, initiatively equipment is changed over to the dormancy holding state.
The said equipment state and information memory cell, the current residing state information of the equipment of storing and equipment allow the bluetooth of access from the preset value of the number of devices upper limit and inquiry scan window size.
The above-mentioned functions query unit comprises: by inquire about the current residing state of the equipment that obtains and charge level to equipment state and information memory cell; Inquiry is obtained bluetooth that transmitting apparatus allows access from equipment maximum constraints information of number and the inquiry scan window size size that pre-sets; Inquiry pointer value memory cell obtaining the pointer value of pointing to this document, and obtains the destination address that this document sends by this pointer inquiry.
The present invention sees the following form 1 with the concrete Data Comparison of energy consumption that adopts the standard bluetooth sending method:
| Experiment number | Existing method institute consumed energy (mW) | Institute's consumed energy of the present invention (mW) |
| 1 | 1348.5 | 1125.7 |
| 2 | 1432.6 | 1203.5 |
| 3 | 1476.5 | 1158.2 |
| 4 | 1396.4 | 1184.2 |
| 5 | 1325.8 | 1232.1 |
Claims (4)
1. method that reduces document transmission energy consumption of bluetooth equipment may further comprise the steps:
A) utilize functional inquiry unit inquiry bluetooth equipment residing state and transmission information in document transmission process;
B) make bluetooth equipment be in low power consumpting state according to bluetooth equipment residing state and energy level in communication process, its concrete steps comprise:
B1) in the bluetooth master inquiry bluetooth receiver equipment stage, when the bluetooth master battery electric quantity is in high level, but inquired bluetooth from equipment, and the bluetooth of access reaches from number of devices and allows access in limited time, it is zero that the inquiry scan window size is set, and initiatively finishes inquiry scan state;
B2) in the preliminary act transmit stage that connects, when bluetooth equipment was not in the concurrent transmission state of one-to-many, inquiry bluetooth master charge level was when the bluetooth master electric weight is in reduced levels, carry out role switching, bluetooth master is switched to bluetooth from equipment;
B3) send ending phase at file, if the bluetooth equipment electric weight is in low-level state, then initiatively change bluetooth equipment over to the device sleeps holding state.
2. the method for reduction document transmission energy consumption of bluetooth equipment according to claim 1, described step b1 further comprises:
Before bluetooth master starts other bluetooth equipment of inquiry scan, determine whether bluetooth master has the response bluetooth from the restriction of equipment maximum number, and obtain the inquiry scan window size parameter value that sweep phase pre-sets.
3. the method for reduction document transmission energy consumption of bluetooth equipment according to claim 1, described step b2 further comprises:
Before the preliminary act transmission that connects, obtain the pointer value of pointing to this document, and obtain the destination address that this document sends by this pointer, and then definite this document belongs to the concurrent simultaneously situation of transmission of one-to-many that whether belongs to.
4. a device that reduces document transmission energy consumption of bluetooth equipment is characterized in that, comprising:
One functional inquiry unit: link to each other with information memory cell with equipment state, be used for inquiring about to equipment state and information memory cell, obtain the residing state of bluetooth equipment and equipment charge level;
One equipment state and information memory cell: be used for the current residing state information of record bluetooth equipment, and bluetooth equipment allows the bluetooth of access from the preset parameter value of the number of devices upper limit and inquiry scan window size;
One pointer value memory cell: be used for the pointer value that file to be sent is pointed in storage, this pointer indicates the destination address value that comprises in the Transmit message wanted;
Reduce the power consumption unit: be used for making bluetooth equipment be in low power consumpting state according to the residing state of bluetooth equipment and equipment charge level, described reduction power consumption unit comprises that inquiry phase reduces the power consumption unit, the file transfer stage is reduced the power consumption unit, the end of transmission stage is reduced the power consumption unit, inquiry phase reduces the power consumption unit, utilize the information of obtaining in the functional inquiry unit to judge current bluetooth equipment state, if in the target device inquiry phase and inquired target device, the bluetooth that the while bluetooth master allows to connect has simultaneously reached the permission upper limit from number of devices, then the inquiry scan window size is set to zero, be that bluetooth equipment initiatively finishes inquiry scan state in zero the situation at this parameter value; The file transfer stage is reduced the power consumption unit, utilizes the information of obtaining in the functional inquiry unit to judge current bluetooth equipment state, if in the file transfer stage and when not existing one-to-many to transmit situation simultaneously, then selecting the lower bluetooth equipment of electric weight is that bluetooth is from equipment; The end of transmission stage is reduced the power consumption unit, utilizes the information of obtaining in the functional inquiry unit to judge current bluetooth equipment state, if transmission has finished and the bluetooth equipment electric weight is in reduced levels, then bluetooth equipment is changed over to the dormancy holding state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103099836A CN101800575B (en) | 2009-11-19 | 2009-11-19 | Method and device for reducing document transmission energy consumption of bluetooth equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009103099836A CN101800575B (en) | 2009-11-19 | 2009-11-19 | Method and device for reducing document transmission energy consumption of bluetooth equipment |
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| Publication Number | Publication Date |
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| CN101800575A CN101800575A (en) | 2010-08-11 |
| CN101800575B true CN101800575B (en) | 2013-10-23 |
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| CN2009103099836A Expired - Fee Related CN101800575B (en) | 2009-11-19 | 2009-11-19 | Method and device for reducing document transmission energy consumption of bluetooth equipment |
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102111696A (en) * | 2010-12-24 | 2011-06-29 | 陕西科技大学 | Method for reducing power consumption of bluetooth headset |
| US8892042B2 (en) * | 2012-06-08 | 2014-11-18 | Apple Inc. | Immediate connection following device discovery |
| CN103533588A (en) * | 2013-09-27 | 2014-01-22 | 宇龙计算机通信科技(深圳)有限公司 | Method for switching current operation application in sub machine to host machine for operation, and mobile terminal for method |
| CN105101362A (en) * | 2014-05-05 | 2015-11-25 | 刘洪明 | Method of reducing signal transmitting radiation of Bluetooth low-power consumption equipment and system |
| CN105581774A (en) * | 2014-10-22 | 2016-05-18 | 长天科技股份有限公司 | Physiological information monitoring system following Bluetooth low-power-consumption communication protocol |
| CN104581617A (en) * | 2015-01-22 | 2015-04-29 | 小米科技有限责任公司 | Wireless communication method and intelligent equipment |
| CN104780580B (en) * | 2015-03-19 | 2018-06-12 | 江苏晓山信息产业股份有限公司 | A kind of Wi-Fi mobile networking methods of energy consumption balance |
| CN104811895B (en) * | 2015-04-01 | 2018-04-20 | 石姗姗 | A kind of connection method of low-power consumption bluetooth and device |
| CN104837208A (en) * | 2015-04-27 | 2015-08-12 | 深圳市金立通信设备有限公司 | Terminal |
| CN105101463B (en) * | 2015-06-09 | 2018-08-03 | 深圳市嘀嗒互动科技有限公司 | A kind of data sharing method based on BLE |
| GB201516673D0 (en) | 2015-09-21 | 2015-11-04 | Nicoventures Holdings Ltd | Topology |
| GB201516674D0 (en) | 2015-09-21 | 2015-11-04 | Nicoventures Holdings Ltd | Topology |
| GB201707050D0 (en) | 2017-05-03 | 2017-06-14 | British American Tobacco Investments Ltd | Data communication |
| GB201722241D0 (en) | 2017-12-29 | 2018-02-14 | British American Tobacco Investments Ltd | Data capture across devices |
| GB201722278D0 (en) | 2017-12-29 | 2018-02-14 | British American Tobacco Investments Ltd | Device identification and method |
| CN111132110B (en) * | 2019-12-26 | 2023-06-16 | 重庆物奇科技有限公司 | Device master-slave role switching system and method for wireless communication |
| CN113206689B (en) * | 2020-12-31 | 2022-05-17 | 珠海市杰理科技股份有限公司 | Communication method and device, Bluetooth slave device and Bluetooth communication system |
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| CN1815460A (en) * | 2004-12-27 | 2006-08-09 | 微软公司 | Reducing power consumption of a wireless device |
| CN101155361A (en) * | 2006-09-29 | 2008-04-02 | 中国电信股份有限公司 | Mobile terminal and its method for improving Bluetooth power consumption combined with service application |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1815460A (en) * | 2004-12-27 | 2006-08-09 | 微软公司 | Reducing power consumption of a wireless device |
| CN101155361A (en) * | 2006-09-29 | 2008-04-02 | 中国电信股份有限公司 | Mobile terminal and its method for improving Bluetooth power consumption combined with service application |
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