CN104469904A - Wireless multi-terminal information collecting method - Google Patents
Wireless multi-terminal information collecting method Download PDFInfo
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- CN104469904A CN104469904A CN201410639210.5A CN201410639210A CN104469904A CN 104469904 A CN104469904 A CN 104469904A CN 201410639210 A CN201410639210 A CN 201410639210A CN 104469904 A CN104469904 A CN 104469904A
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- wireless
- base station
- time
- wireless terminal
- terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a wireless multi-terminal information collecting method. The wireless multi-terminal information collecting method includes the steps that a wireless base station sends synchronous codes intermittently according to a certain period, wireless terminals receive the synchronous codes according to a certain waking period, and wireless terminals can finish synchronization with the time reference of the wireless base station after being powered on through at most two times of waking; during the silent time of the wireless base station, each wireless terminal is distributed with a certain response time; each wireless terminal can work out the coordinate position of the response time of the local wireless terminal according to the synchronization time reference of the wireless base station. Each terminal reacts and sends information to the wireless base station only within the self response time, and is in a dormant state at other time. The wireless multi-terminal information collecting method is suitable for multi-point short information wireless collection within a small area; the wireless terminals are in a dormant state for a long time, power consumption is reduced, and the work time of the terminals is prolonged; the response time of the wireless terminals is distributed orderly, and response conflict among the multiple wireless terminals is avoided.
Description
Technical field
The present invention relates to wireless communication technology field, in particular to a kind of radio multi-terminal information collecting method.
Background technology
Wireless communication system is that the wireless transmission of data is provided convenience, and avoids the erection of stube cable, has saved cost.On one point in multipoint wireless communication system, in the communication process of multiple terminal and base station, the communication contention aware that certain protocol specification just can avoid the unordered transmission data in multiple terminals to cause must be acted on.
In the prior art, multiple known method is had to solve this conflict, as each terminal detects current network with or without other-end in transmission data before transmission data, if having, then just transmission during wait network idle.This method thoroughly can not solve communication contention aware, simultaneously each terminal balanced cannot send the chance of data.In the mode of " roll-call ", master slave communication agreement requires that each terminal responds base station taking turn, reliably can complete transfer of data, contention-free; But master slave communication has a fatal problem, be exactly that each terminal juncture all will be in " regaining consciousness " state, for battery-powered wireless terminal, the life-span of battery determines the life-span of terminal, if terminal is in open state always, the electricity of battery will be run out of rapidly.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of radio multi-terminal information collecting method is provided.
The present invention is realized by following technical method:
Wireless base station and wireless terminal alternately take communication channel, send synchronous code when wireless base station takies communication channel, and what complete with wireless base station time reference for helping wireless terminal is synchronous; Each wireless terminal is assigned one period of independently response time, and send this end message for wireless terminal to wireless base station, the order of each terminal response base station characterizes the address information (Fig. 1) of this terminal; Each wireless terminal is in resting state at ordinary times, by arranging wireless base station width lock in time and wireless terminal responses time width, ensure to wake up at most after wireless terminal powers on that can to complete for twice with wireless base station time reference synchronous, thus help wireless terminal to determine that this wakes moment coordinate position on a timeline up; The method specifically comprises the following steps:
(1) send synchronous code BSSC when wireless base station takies communication channel, described synchronous code BSSC comprises several synchronization code words, and each synchronization code word comprises several sync bytes, synchronization code word sequence number and check digit;
(2) data of reception are arranged in order after waking up by wireless terminal in fifo fashion, often receive a data and just carry out a sync byte examination, when the sync byte sequence of the data fit wireless base station received, sync byte has been screened, and data are thereafter synchronization code word sequence number and check digit; After the synchronization code word that wireless terminal reception is complete to, then differentiated by the correctness of check digit to synchronization code word, if check digit differentiates mistake, then abandon the synchronization code word that this receives, continue to receive next synchronization code word as synchronous base; Any one correct synchronization code word of wireless terminal reception, all can determine current time coordinate position on a timeline;
(3) wireless terminal is according to the synchronization code word sequence number received and the address number of oneself, determine oneself time coordinate in synchronous code BSSC, calculate this moment apart from the time interval between self response time, the dormancy time of oneself is set, to ensure automatically to wake up when the response time of oneself arrives;
(4) wireless terminal dormancy time arrives, and automatically wakes up, and send information (base station is now in accepting state) to wireless base station, institute's photos and sending messages comprises several sync bytes, several data message byte, end code and check digit;
(5), after wireless terminal completes the transmission of this secondary data, the dormancy time of oneself is set again, the synchronous code of wireless base station can be detected during to ensure to wake up next time, reenter resting state afterwards.
Especially, as shown in Figure 1, if wireless base station sends BSSC required time be
, the total time of all wireless terminal responses is
, when meeting
, wireless terminal wakeup time is got
time, just can ensure to wake up at most that can to complete for twice with wireless base station time reference synchronous.
The effect that the present invention is useful is: each wireless terminal only automatically wakes the information sending this terminal to base station up within the response time of oneself, order of response impliedly represents the address information of this terminal, the amount of information and each terminal that decrease communication use communication channel in order, avoid communication contention aware; Each wireless terminal is in resting state for a long time, effectively reduces the electric quantity consumption of terminal, extends the useful life of battery.
Accompanying drawing explanation
Fig. 1 is a kind of schematic diagram of radio multi-terminal information collecting method;
Fig. 2 is wireless base station synchronous code data format;
Fig. 3 is that wireless terminal sends information data format.
Embodiment
Describe the present invention in detail below in conjunction with the accompanying drawing in the embodiment of the present invention, object of the present invention and effect will become more obvious.
A kind of radio multi-terminal information collecting method of the present invention, specifically comprises the following steps:
(1) wireless base station periodically sends synchronous code BSSC, comprises several synchronization code words, and its data format as shown in Figure 2.
Each synchronization code word is made up of 3 sync bytes (11111110,1101001,10010111), synchronization code word sequence number and check digit.Due to application claims
if wireless terminal realizes synchronous with wireless base station, and its available machine time probability certainly will be greater than 50%, is unfavorable for the low power operation of terminal.If the BSSC that wireless base station sends is done appropriate segmentation, be divided into m synchronization code word, as long as then terminal is complete receive a synchronization code word, just can determine oneself time coordinate in BSSC according to the synchronization code word sequence number in synchronization code word, thus it is synchronous to complete with wireless base station.
3 sync bytes in synchronization code word are used for wireless terminal identification synchronous code, and check digit is used for differentiating synchronization code word correctness, if check digit differentiates mistake, then abandon the synchronization code word that this receives, and continue to receive next synchronization code word as synchronous base.
(2) data of reception are arranged in order after automatically waking up by wireless terminal in fifo fashion, often receive a data and just carry out a sync byte examination, when the data fit 11111110 received, 1101001, during 10010111 sequence, sync byte has been screened, and data are thereafter synchronization code word sequence number and check digit.After the synchronization code word that wireless terminal reception is complete to, then differentiated by the correctness of check digit to synchronization code word, if check digit differentiates mistake, then abandon the synchronization code word that this receives, continue to receive next synchronization code word as synchronous base.
(3) wireless terminal is according to the synchronization code word sequence number (address number) of oneself, determine oneself time coordinate in BSSC, calculate this moment apart from the time interval between the response time, the dormancy time of oneself is set, to ensure automatically to wake up when the response time of oneself arrives.
(4) wireless terminal dormancy time arrives, and automatically wakes up, and send information to wireless base station, institute's photos and sending messages comprises 3 sync bytes, data message byte, end code and check digit, and its data format as shown in Figure 3.
3 sync bytes are 00000001,00101101,01101000, and the length of data message byte and content are by system definition, and end code is 7bit(0101101), jointly form a byte with check digit p.The object arranging 3 sync bytes helps wireless base station synchronous with wireless terminal data, and check digit receives the correctness of data for differentiating, end code is beneficial to the data that each terminal is distinguished in base station.
Especially, wireless terminal again need arrange the dormancy time of oneself, the synchronous code of wireless base station can be detected, reenter resting state afterwards during to ensure to wake up next time after completing the transmission of this secondary data.
Content described in a kind of radio multi-terminal information collecting method of the present invention; be only the embodiment being beneficial to description by and tell about our ratio juris; without departing from the principles of the present invention, all protection scope of the present invention is belonged to the change that links of the present invention carries out in any form and details.
Claims (1)
1. a radio multi-terminal information collecting method, is characterized in that, wireless base station and wireless terminal alternately take communication channel, sends synchronous code when wireless base station takies communication channel, and what complete with wireless base station time reference for helping wireless terminal is synchronous; Each wireless terminal is assigned one period of independently response time, and send this end message for wireless terminal to wireless base station, the order of each terminal response base station characterizes the address information of this terminal; Each wireless terminal is in resting state at ordinary times, by arranging wireless base station width lock in time and wireless terminal responses time width, ensure to wake up at most after wireless terminal powers on that can to complete for twice with wireless base station time reference synchronous, thus help wireless terminal to determine that this wakes moment coordinate position on a timeline up; The method specifically comprises the following steps:
(1) send synchronous code BSSC when wireless base station takies communication channel, described synchronous code BSSC comprises several synchronization code words, and each synchronization code word comprises several sync bytes, synchronization code word sequence number and check digit;
(2) data of reception are arranged in order after waking up by wireless terminal in fifo fashion, often receive a data and just carry out a sync byte examination, when the sync byte sequence of the data fit wireless base station received, sync byte has been screened, and data are thereafter synchronization code word sequence number and check digit; After the synchronization code word that wireless terminal reception is complete to, then differentiated by the correctness of check digit to synchronization code word, if check digit differentiates mistake, then abandon the synchronization code word that this receives, continue to receive next synchronization code word as synchronous base; Any one correct synchronization code word of wireless terminal reception, all can determine current time coordinate position on a timeline;
(3) wireless terminal is according to the synchronization code word sequence number received and the address number of oneself, determine oneself time coordinate in synchronous code BSSC, calculate this moment apart from the time interval between self response time, the dormancy time of oneself is set, to ensure automatically to wake up when the response time of oneself arrives;
(4) wireless terminal dormancy time arrives, and automatically wakes up, and send information to wireless base station, institute's photos and sending messages comprises several sync bytes, several data message byte, end code and check digit;
(5), after wireless terminal completes the transmission of this secondary data, the dormancy time of oneself is set again, the synchronous code of wireless base station can be detected during to ensure to wake up next time, reenter resting state afterwards.
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| CN201410639210.5A CN104469904B (en) | 2014-11-13 | 2014-11-13 | A kind of radio multi-terminal information collecting method |
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| CN104469904B CN104469904B (en) | 2018-04-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888320A (en) * | 2017-12-11 | 2018-04-06 | 国网浙江省电力有限公司 | A kind of frame synchronization detection method based on OTN |
| CN110139348A (en) * | 2019-05-21 | 2019-08-16 | 广东几米星联通讯有限公司 | A kind of RDSS communication means and its terminal |
Citations (3)
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|---|---|---|---|---|
| CN1642057A (en) * | 2004-01-18 | 2005-07-20 | 方正通信技术有限公司 | Initial synchronizing method for community search for CDMA communication system |
| CN1798003A (en) * | 2004-12-22 | 2006-07-05 | 方正通信技术有限公司 | Initial synchronization method in subzone search of CDMA communication system |
| US20110095866A1 (en) * | 2008-09-12 | 2011-04-28 | Roundtrip Llc | Locator inventory system |
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2014
- 2014-11-13 CN CN201410639210.5A patent/CN104469904B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1642057A (en) * | 2004-01-18 | 2005-07-20 | 方正通信技术有限公司 | Initial synchronizing method for community search for CDMA communication system |
| CN1798003A (en) * | 2004-12-22 | 2006-07-05 | 方正通信技术有限公司 | Initial synchronization method in subzone search of CDMA communication system |
| US20110095866A1 (en) * | 2008-09-12 | 2011-04-28 | Roundtrip Llc | Locator inventory system |
Non-Patent Citations (1)
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| 谢琦等: "用于ZigBee网络的同步休眠与唤醒算法", 《计算机应用》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888320A (en) * | 2017-12-11 | 2018-04-06 | 国网浙江省电力有限公司 | A kind of frame synchronization detection method based on OTN |
| CN110139348A (en) * | 2019-05-21 | 2019-08-16 | 广东几米星联通讯有限公司 | A kind of RDSS communication means and its terminal |
| CN110139348B (en) * | 2019-05-21 | 2022-10-28 | 广东几米星联通讯有限公司 | RDSS communication method and terminal thereof |
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| CN104469904B (en) | 2018-04-17 |
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