CN109640308B - Bracelet wireless communication system and method thereof - Google Patents
Bracelet wireless communication system and method thereof Download PDFInfo
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- CN109640308B CN109640308B CN201910064356.4A CN201910064356A CN109640308B CN 109640308 B CN109640308 B CN 109640308B CN 201910064356 A CN201910064356 A CN 201910064356A CN 109640308 B CN109640308 B CN 109640308B
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- radio frequency
- data
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- terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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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
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
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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
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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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
Abstract
The invention discloses a bracelet wireless communication system and a method thereof, wherein the bracelet wireless communication system comprises a data terminal, a tag terminal group and a bracelet, the radio frequency module of the data terminal is dual-mode and comprises a broadcasting channel and a data channel, the broadcasting channel is used for broadcasting, the data channel is used for exchanging data, the tag terminal group comprises at least 3 tag terminals which are linearly deployed, the radio frequency module of the tag terminal is used for broadcasting self ID, and the radio frequency module of the bracelet is used for monitoring broadcasting, data exchanging and monitoring tags. The invention comprises a broadcast channel communication scheme and a tag terminal positioning scheme, wherein the data terminal separates the broadcast channel and the data channel in hardware, the bracelet monitors the broadcast and then exchanges data with the data terminal, and simultaneously monitors the tag channel information to be sent to the data terminal and transmitted to the background for positioning analysis, thereby effectively reducing the power consumption of the bracelet and improving the positioning precision of the bracelet.
Description
Technical Field
The invention relates to a wireless communication system technology, in particular to a bracelet wireless communication system and a method thereof.
Background
The traditional broadcast communication scheme has poor flexibility and security and can only send in one direction, and the bracelet and the terminal adopt a networking mode many-to-one time-sharing communication scheme, so that the flexibility is high, and the two-way communication is realized, but when the number of channels available for the terminal is increased, the bracelet needs to search all possible channels once when searching the network, so that the power consumption of the bracelet is high.
In addition, the conventional campus bracelet positioning adopts RSSI (signal strength) positioning or 125K low-frequency hardware positioning, which leads to cost increase or volume increase, and the RSSI positioning directly using wireless communication hardware cannot be accurately positioned.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a broadcasting channel communication scheme and a tag terminal positioning scheme of a bracelet.
The aim of the invention is achieved by the following technical scheme: the radio frequency module of the data terminal is dual-mode, and comprises a broadcasting channel and a data channel, wherein the broadcasting channel is used for broadcasting, the data channel is used for data exchange, the tag terminal group comprises at least 3 tag terminals which are linearly deployed, the radio frequency module of the tag terminals is used for broadcasting self IDs, and the radio frequency module of the hand ring is used for monitoring broadcasting, data exchange and monitoring tags.
Further, the data terminal comprises an Ethernet module, an MCU unit A, a radio frequency module A1, a radio frequency module A2, a radio frequency amplifier A1 and a radio frequency amplifier A2, wherein the Ethernet module is connected with the input end of the MCU unit A, the output end of the MCU unit A is connected with the radio frequency module A1 and the radio frequency module A2, the output of the radio frequency module A1 is connected with the radio frequency amplifier A1, and the output of the radio frequency module A2 is connected with the radio frequency amplifier A2.
Further, the tag terminal comprises an MCU unit B and a radio frequency module B, and the output end of the MCU unit B is connected with the radio frequency module B.
Further, the bracelet comprises an MCU unit C, a radio frequency module C and a radio frequency amplifier C, wherein the output end of the MCU unit C is connected with the radio frequency module C, and the output of the radio frequency module C is connected with the radio frequency amplifier C.
Further, the broadcast channel continuously broadcasts its own broadcast channel number and check code in a preset time slot.
Further, the tag terminal continuously broadcasts its own tag channel number, tag ID number and check code in a preset time slot.
Further, a bracelet wireless communication method comprises the following steps:
s11, monitoring broadcast, namely monitoring broadcast channels of all data terminals by using a bracelet, and if the effective broadcast channels are monitored, turning to step S12; otherwise, continuing to stay in S11;
s12, monitoring data, switching a data channel of a monitoring data terminal by the bracelet, and if an effective data channel is monitored, turning to a step S13; otherwise, continuing to stay in S12;
s13, requesting to access the network, selecting a data channel with the largest RSSI to start network access attempt, monitoring a message sent by the channel, if network access frame information is monitored, sending a network access request and checking whether a terminal is correctly responded in the next time slot, if so, indicating that network access is successful, and turning to S15; returning to S11 if there is an error response or no response; if the data frame information is monitored, setting waiting time according to the information content, and turning to S14;
s14, responding to the request, continuing to monitor the channel information after waiting time is up, sending a network access request after monitoring network access frame information, checking whether a terminal correctly responds in the next time slot, correctly responding, indicating successful network access, and turning to S15; returning to S11 if the error response or the no response is generated;
s15, data exchange, network access success, network access mode entering, and data exchange with the data terminal through the data channel.
Further, the method also comprises the step of positioning through a tag channel:
s21, the bracelet monitors all the label channels, and if the effective label channels are monitored, the step S22 is carried out; otherwise, continuing to stay in S21;
s22, the bracelet transmits the information of the monitored tag channel to a data channel of the data terminal and transmits the information to the background for positioning analysis.
The invention has the following advantages:
1. the data terminal separates the broadcast channels and the data channels on the hardware structure, so that the bracelet only needs to search the broadcast channels with smaller quantity, and the time slots of the broadcast channels are shorter, thereby further reducing the time for searching the data terminal by the bracelet and effectively reducing the power consumption of the bracelet;
2. by monitoring the broadcast signals of the 3 tag channels which are linearly deployed, the bracelet can monitor the broadcast signals of the two tag channels at the same time, and the positioning accuracy of the bracelet is effectively improved.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Fig. 2 is a schematic diagram of a broadcast channel communication scheme according to the present invention.
Fig. 3 is a schematic diagram of a tag channel positioning scheme according to the present invention.
Fig. 4 is a hardware block diagram of a data terminal.
Fig. 5 is a schematic diagram of a tag terminal group.
Fig. 6 is a hardware block diagram of the tag terminal.
Fig. 7 is a hardware block diagram of a bracelet.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1, a bracelet wireless communication system includes a data terminal, a tag terminal group and a bracelet, where radio frequency modules of the data terminal are dual-mode, and include a broadcast channel and a data channel, where the broadcast channel is used for broadcasting, the data channel is used for data exchange, the tag terminal group includes at least 3 tag terminals deployed linearly, radio frequency modules of the tag terminals are used for broadcasting their own IDs, and radio frequency modules of the bracelet are used for monitoring broadcasting, data exchange and monitoring tags.
As shown in fig. 2, a method for wireless communication of a bracelet includes the steps of:
s11, monitoring broadcast, namely monitoring broadcast channels of all data terminals by using a bracelet, and if the effective broadcast channels are monitored, turning to step S12; otherwise, continuing to stay in S11;
s12, monitoring data, switching a data channel of a monitoring data terminal by the bracelet, and if an effective data channel is monitored, turning to a step S13; otherwise, continuing to stay in S12;
s13, requesting to access the network, selecting a data channel with the largest RSSI to start network access attempt, monitoring a message sent by the channel, if network access frame information is monitored, sending a network access request and checking whether a terminal is correctly responded in the next time slot, if so, indicating successful network access, turning to S15, and if not, returning to S11; if the data frame information is monitored, setting waiting time according to the information content, and turning to S14;
s14, responding to the request, continuing to monitor the channel information after waiting time is up, sending a network access request after monitoring network access frame information, checking whether a terminal obtains a correct response in the next time slot, and returning to S11 if the network access is successful, wherein the correct response indicates that the network access is successful, and returning to S15 if the error response is wrong or no response is not generated;
s15, data exchange, network access success, network access mode entering, and data exchange with the data terminal through the data channel.
As shown in fig. 3, a method for wireless communication of a bracelet further includes the steps of:
s21, the bracelet monitors all the label channels, and if the effective label channels are monitored, the step S22 is carried out; otherwise, continuing to stay in S21;
s22, the bracelet transmits the information of the monitored tag channel to a data channel of the data terminal and transmits the information to the background for positioning analysis.
As shown in fig. 4, the data terminal includes an ethernet module, an MCU unit a, a radio frequency module A1, a radio frequency module A2, a radio frequency amplifier A1 and a radio frequency amplifier A2, where the ethernet module is connected to an input end of the MCU unit a, an output end of the MCU unit a is connected to the radio frequency module A1 and the radio frequency module A2, an output of the radio frequency module A1 is connected to the radio frequency amplifier A1, and an output of the radio frequency module A2 is connected to the radio frequency amplifier A2.
As shown in fig. 5, the tag terminal group includes at least 3 tag terminals deployed linearly, and the radio frequency module of the tag terminals is configured to broadcast its own ID, so long as the bracelet cannot traverse the whole coverage area within 1s, it can monitor the information of the tag channel, the ID number in this information is sent by the bracelet to the data terminal again and passed to the background for positioning analysis, and this accurate positioning is generally used for checking attendance, electronic fence, and security area, so that it is generally deployed linearly, and theoretically 2 tag channels are enough to be used, and for redundancy design, 3 tag channels are adopted.
As shown in fig. 6, the tag terminal includes an MCU unit B and a radio frequency module B, where an output end of the MCU unit B is connected with the radio frequency module B.
As shown in fig. 7, the bracelet includes an MCU unit C, a radio frequency module C and a radio frequency amplifier C, wherein an output end of the MCU unit C is connected with the radio frequency module C, and an output end of the radio frequency module C is connected with the radio frequency amplifier C.
Further, the broadcast channel of the data terminal uses 5ms as a time slot (the time slot time can be adjusted according to the use condition), and continuously broadcasts the broadcast channel number and the check code of the data terminal.
Further, the tag terminal uses 5ms as a time slot (the time slot time can be adjusted according to the use condition), and continuously broadcasts the tag channel number, the tag ID number and the check code of the tag terminal.
Claims (8)
1. The hand ring wireless communication method is based on a hand ring wireless communication system, and the hand ring wireless communication system comprises a data terminal, a tag terminal group and a hand ring, and is characterized in that: the method comprises the following steps:
s11, monitoring broadcast, namely monitoring broadcast channels of all data terminals by using a bracelet, and if the effective broadcast channels are monitored, turning to step S12; otherwise, continuing to stay in S11;
s12, monitoring data, switching a data channel of a monitoring data terminal by the bracelet, and if an effective data channel is monitored, turning to a step S13; otherwise, continuing to stay in S12;
s13, requesting to access the network, selecting a data channel with the largest RSSI to start network access attempt, monitoring a message sent by the channel, if network access frame information is monitored, sending a network access request and checking whether a terminal is correctly responded in the next time slot, if so, indicating that network access is successful, and turning to S15; returning to S11 if there is an error response or no response; if the data frame information is monitored, setting waiting time according to the information content, and turning to S14;
s14, responding to the request, continuing to monitor the channel information after waiting time is up, sending a network access request after monitoring network access frame information, checking whether a terminal correctly responds in the next time slot, correctly responding, indicating successful network access, and turning to S15; returning to S11 if the error response or the no response is generated;
s15, data exchange, network access success, network access mode entering, and data exchange with the data terminal through the data channel.
2. A method of wireless communication of a wristband as claimed in claim 1, wherein: the method further comprises the step of locating through a tag channel:
s21, the bracelet monitors all the label channels, and if the effective label channels are monitored, the step S22 is carried out; otherwise, continuing to stay in S21;
s22, the bracelet transmits the information of the monitored tag channel to a data channel of the data terminal and transmits the information to the background for positioning analysis.
3. A method of wireless communication of a wristband as claimed in claim 1, wherein: the radio frequency module of the data terminal is dual-mode and comprises a broadcasting channel and a data channel, wherein the broadcasting channel is used for broadcasting, the data channel is used for data exchange, the tag terminal group comprises at least 3 tag terminals which are linearly deployed, the radio frequency module of the tag terminals is used for broadcasting self IDs, and the radio frequency module of the bracelet is used for monitoring broadcasting, data exchange and monitoring tags.
4. A method of wireless communication of a wristband as claimed in claim 1, wherein: the data terminal comprises an Ethernet module, an MCU unit A, a radio frequency module A1, a radio frequency module A2, a radio frequency amplifier A1 and a radio frequency amplifier A2, wherein the Ethernet module is connected with the input end of the MCU unit A, the output end of the MCU unit A is connected with the radio frequency module A1 and the radio frequency module A2, the output of the radio frequency module A1 is connected with the radio frequency amplifier A1, and the output of the radio frequency module A2 is connected with the radio frequency amplifier A2.
5. A method of wireless communication of a wristband as claimed in claim 1, wherein: the tag terminal comprises an MCU unit B and a radio frequency module B, and the output end of the MCU unit B is connected with the radio frequency module B.
6. A method of wireless communication of a wristband as claimed in claim 1, wherein: the bracelet comprises an MCU unit C, a radio frequency module C and a radio frequency amplifier C, wherein the output end of the MCU unit C is connected with the radio frequency module C, and the output of the radio frequency module C is connected with the radio frequency amplifier C.
7. A method of wireless communication of a wristband as claimed in claim 3, wherein: the broadcast channel continuously broadcasts the broadcast channel number and the check code of the broadcast channel per se in a preset time slot.
8. A method of wireless communication of a wristband as claimed in claim 3, wherein: the tag terminal continuously broadcasts the tag channel number, the tag ID number and the check code of the tag terminal per se in a preset time slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064356.4A CN109640308B (en) | 2019-01-23 | 2019-01-23 | Bracelet wireless communication system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064356.4A CN109640308B (en) | 2019-01-23 | 2019-01-23 | Bracelet wireless communication system and method thereof |
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| CN109640308A CN109640308A (en) | 2019-04-16 |
| CN109640308B true CN109640308B (en) | 2023-07-04 |
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| CN107404706A (en) * | 2017-08-17 | 2017-11-28 | 中南大学 | Bluetooth based on co-located is registered method |
| CN109041082A (en) * | 2018-07-25 | 2018-12-18 | 朔联科技（上海）有限公司 | Positioning information transmission method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201304219D0 (en) * | 2013-03-08 | 2013-04-24 | Tomtom Int Bv | Methods for communicating sensor data between devices |
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2019
- 2019-01-23 CN CN201910064356.4A patent/CN109640308B/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| CN101502057A (en) * | 2006-08-07 | 2009-08-05 | 高通股份有限公司 | Monitor period for asynchronous wireless communication |
| CN103686610A (en) * | 2013-11-30 | 2014-03-26 | 北京智谷睿拓技术服务有限公司 | Broadcast method and broadcast equipment for wireless communication |
| US9356971B1 (en) * | 2014-09-25 | 2016-05-31 | Amazon Technologies, Inc. | Broadcast-based trust establishment |
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| CN109640308A (en) | 2019-04-16 |
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