CN207321256U - A kind of repeater of scene LoRa radio spread spectrum communications - Google Patents
A kind of repeater of scene LoRa radio spread spectrum communications Download PDFInfo
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- CN207321256U CN207321256U CN201720983822.5U CN201720983822U CN207321256U CN 207321256 U CN207321256 U CN 207321256U CN 201720983822 U CN201720983822 U CN 201720983822U CN 207321256 U CN207321256 U CN 207321256U
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Abstract
A kind of repeater of scene LoRa radio spread spectrum communications, is related to a kind of communication relays, and the repeater includes power module, main control chip, LoRa wireless communication modules, indicator light, toggle switch etc..Device can realize this because communication distance too far or can not communicate caused by barrier is excessive between two wireless communication sites and realize data interchange.Between repeater should install the website of two wireless communications, after repeater receives wireless data, then the wireless communication site that this signal does not cover is transferred data to.The present apparatus can solve wireless communication scene, because transmission range is too far or signal caused by intermediate obstacles is weak or can not transmit the problem of data cause so that two wireless site data interchanges.By setting different frequency points, the problems of the Communication Jamming that staggers, it can be achieved that due to on-site wireless communication distance too far or barrier it is more cause on-site signal on the weak side or without result in the problem of can not communicating.
Description
Technical field
A kind of wireless repeater is the utility model is related to, more particularly to a kind of relaying of scene LoRa radio spread spectrum communications
Device.
Technical background
In the present communication technology, according to there is useless line to be divided into wire communication and wireless communication, in application at the scene,
Wireless communication has the advantages of many compared to wire communication.Be first wire communication with respect to cost than less expensive, wire communication side
The foundation of formula must set up cable, or excavate cable duct, it is therefore desirable to substantial amounts of man power and material, and with communication into
Row data transfer, it is only necessary to each terminal connection wireless digital broadcasting station and set up appropriate height antenna can, compare
Under with wireless data transmission module establish private radio data transfer mode, save manpower and materials, investment is quite saved.Again
It is exactly that wire communication has the advantages that the construction project cycle is short, adaptability is good, favorable expandability, is easier to realize in plant maintenance.
LoRa communications are a kind of remote wireless transmission technologies based on spread spectrum, provide a kind of simple energy to the user
Realize remote, low-consumption wireless means of communication.At present, LoRa communications are mainly run in ISM band, mainly including 433,868,
915 MHz etc..The communication distance of the LoRa communication modules of present mainstream is about between 3 ~ 5KM, and practical application is often than this
It is a apart from shorter, substantially in 1KM or so.So site of deployment often because building block or on-scene communication distance compared with
The reason such as remote, causes not completing to communicate between two communication points, significantly limit the application of field device.At this time just need
To increase the transmission that a trunking completes wireless data between two points.
The content of the invention
The purpose of this utility model is to provide a kind of repeater of scene LoRa radio spread spectrum communications, which uses
The communication mode communication of LoRa wireless frequency expansions, by setting different frequency points, the problems of the Communication Jamming that staggers, it can be achieved that by
In on-site wireless communication distance too far or barrier it is more cause on-site signal on the weak side or without result in the problem of can not communicating.
The purpose of this utility model is achieved through the following technical solutions：
A kind of repeater of scene LoRa radio spread spectrum communications, described device include power module, power supply indicator, communication
Indicator light, main control chip, LoRa wireless communication modules, antenna, 3 toggle switch；The electric main of 220V and power module phase
Even, power module becomes low-voltage direct electrical connection power supply indicator, main control chip and the LoRa wireless communication modules to swap out；Master control core
Piece is directly connected to two LoRa wireless communication modules, and antenna is directly connected to the antennal interface of LoRa wireless communication modules；Master control
Chip is directly connected with communication indicator light, and 3 toggle switch set the different wireless communication frequency range that two wireless modules select, with
Main control chip connects.
A kind of repeater of scene LoRa radio spread spectrum communications, two LoRa wireless communications built in the repeater
Module, two three toggle switch built in repeater, built-in 5 paths of LEDs indicator light.
The advantages of the utility model is with effect：
The utility model causes the slave station for the distant place that main website originally can not connect to realize wireless data intercommunication, and repeater is installed on
Between main website and data transmission point, LoRa wireless communication modules that data operate in different frequency range by two in repeater,
So that wireless main website and the secondary radio station that originally cannot connect to realize interconnection and data transfer.3 toggle switch of the design two
It can conveniently be gone to set two LoRa wireless modules to run on different frequency bands according to field demand, can at most there is 8 frequencies
Section provides use.Power supply indicator suggestion device electric power thus supplied, 4 communication indicator lights may indicate that the hair of two LoRa communication modules
Send and receive the situation of data.
Brief description of the drawings
Fig. 1 is wireless communication on-the-spot schematic；
Fig. 2 is the device block diagram of LoRa wireless communication relays.
In figure：1 is wireless communication site A, B, C, and 2 be wireless repeater, and 3 be the overlayable communication range of wireless site, 4
Inputted for alternating current, 5 be power module, and 6 be main control chip, and 7 be LoRa wireless communication modules, and 8 be antenna, and 9 be indicator light, and 10 are
3 toggle switch.
Embodiment
The utility model is described in detail in illustrated embodiment below in conjunction with the accompanying drawings.
The utility model include power module, 1 power supply indicator, 4 communication indicator lights, main control chip, 2 LoRa without
Line communication module, 2 antennas, two 3 toggle switch.The electric main of 220V is directly connected to power module, power supply first
The low-voltage DC that block transforms go out directly is connected with power supply indicator, main control chip and LoRa wireless communication modules, for its confession
Electricity.Main control chip is directly connected to two LoRa wireless communication modules, and the communication mode of SPI is used with its data exchange.Two
Antenna is directly connected to the antennal interface of LoRa wireless communication modules, and wireless signal is amplified.Main control chip directly communicates with 4 to be referred to
Show that lamp connects, show real-time communications status.
In Fig. 1, the wireless signal scope 3 of wireless site A can not communicate to website B and C, but signal can cover
Relaying 2,2 signalling coverage of repeater can communicate with website B and C, such home site A can by repeater 2 and
Slave site B and C communicate.Electric main 4 is converted whole low-voltage DC by repeater 2 by power module 5 first, is supplied to device
Whether electricity, power supply indicator 9 power for display device.The data that first wireless module 7 is received by antenna 8, number
Main control chip 6 is transmitted to according to the communication mode by SPI, main control chip 6 conveys data to by the communication mode of SPI again
Two wireless modules 7, second wireless module 7 are sent out data by the amplification of antenna 8 using the frequency range different from first
Go so that realize data interchange between principal and subordinate's website.First wireless communication module 7 is indicated respectively by 4 communication indicator lights 9
Transmitting-receiving and the transceiving data situation of second wireless module 7.Two 3 toggle switch 10 are used for setting two wireless module selections
Different wireless communication frequency range, be directly connected to main control chip 6, pull-up input, wireless communication frequency band is preset by program, is restarted
This relaying can be completed to replace.
In order to realize in practical application at the scene, two points of wireless communication are due to the original of hypertelorism or intermediate obstacles
Because leading to not communication or signal of communication bad the problems such as causing error in data, a kind of intermediate equipment is devised, in two nothings
Increase the transfer transmission that a trunking completes wireless data between line communication point.Two LoRa wireless communications built in repeater
Module, after main control chip receives data by first LoRa wireless communication module, it is wireless to transfer data to second Lora
Module is sent.The frequency range of two Lora modules will have been distinguished, and so will not just cause data collision.Pass through repeater
Built-in two three toggle switch can realize the setting of 8 kinds of different frequency ranges, convenient, practical, quick.Pass through built in repeater 5
Power supply among paths of LEDs indicator light Observable, two LoRa wireless modules reception and send the real-time conditions of data.
The utility model electric main of 220V first is transformed into used in device by the power module built in this repeater
Low-voltage DC, to give including main control chip, indicator light, LoRa wireless communication module power supplies.The utility model main control chip
What is selected is that ST Microelectronics is STM32 microcontrollers, and model STM32F103C8T6, this single chip application scope is wide, surely
It is qualitative good, it is cheap.The LoRa wireless communication modules that the design selects are SX1278 wireless modules, and module uses SEMTECH
The wireless chip of the LoRa modulation techniques of company, the module is in addition to traditional GFSK modulation techniques, the LoRa that also uses（Remotely）
Spread spectrum, has overlength distance spread spectrum communication, high noise immunity and the reduction current power dissipation for beating limit.Main control chip passes through
The communication mode of SPI is connected with two LoRa wireless modules, and two LoRa wireless modules are distinguished pre- by two 3 toggle switch
If the communications band of wireless module, device run when, first main website can by data by being wirelessly transmitted to repeater, repeater
After first wireless module receives data, SPI communication mode conveys data to main control chip, and main control chip is led to by SPI again
Letter mode sends second wireless module to and sends, and is transmitted to distant place that main website cannot communicate directly to from communication site,
Notice that two selected frequency ranges of LoRa wireless modules must be different, in order to avoid send signal interference and data collision, slave station used
The frequency range of point is different from the frequency range of main website, identical with second wireless module frequency range of repeater.So it is remotely mounted master
Stand the data transmission point that can not communicate can by the LoRa wireless repeaters main website of the design and far communication from
Website transmits data.4 data indicator lights in device are used to refer to transmitting-receiving situation of the data in repeater, are seen easy to user
Survey.
Claims (2)
1. a kind of repeater of scene LoRa radio spread spectrum communications, it is characterised in that the repeater includes power module, power supply
Indicator light, communication indicator light, main control chip, LoRa wireless communication modules, antenna, 3 toggle switch；The electric main of 220V with
Power module is connected, and power module becomes the low-voltage direct to swap out and is electrically connected power supply indicator, main control chip and LoRa wireless communications
Module；Main control chip is directly connected to two LoRa wireless communication modules, and antenna is directly connected to the day of LoRa wireless communication modules
Line interface；Main control chip is directly connected with communication indicator light, and 3 toggle switch set the different radio that two wireless modules select
Communications band, with main control chip（6）Connection.
A kind of 2. repeater of scene LoRa radio spread spectrum communications according to claim 1, it is characterised in that the relaying
Two LoRa wireless communication modules built in device, two three toggle switch built in repeater, built-in 5 paths of LEDs indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720983822.5U CN207321256U (en) | 2017-08-08 | 2017-08-08 | A kind of repeater of scene LoRa radio spread spectrum communications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720983822.5U CN207321256U (en) | 2017-08-08 | 2017-08-08 | A kind of repeater of scene LoRa radio spread spectrum communications |
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| CN207321256U true CN207321256U (en) | 2018-05-04 |
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| CN201720983822.5U Active CN207321256U (en) | 2017-08-08 | 2017-08-08 | A kind of repeater of scene LoRa radio spread spectrum communications |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418621A (en) * | 2018-05-23 | 2018-08-17 | 广州供电局有限公司 | wireless repeater |
| CN111541508A (en) * | 2020-04-21 | 2020-08-14 | 中山大学 | LoRaWAN spread spectrum factor distribution method based on short-term DER and optimal load |
| CN114640382A (en) * | 2021-12-10 | 2022-06-17 | 浙江慧居智能物联有限公司 | Full-duplex self-frequency-modulation repeater based on modified LoRaWAN protocol and implementation method thereof |
-
2017
- 2017-08-08 CN CN201720983822.5U patent/CN207321256U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418621A (en) * | 2018-05-23 | 2018-08-17 | 广州供电局有限公司 | wireless repeater |
| CN108418621B (en) * | 2018-05-23 | 2023-10-20 | 广东电网有限责任公司广州供电局 | wireless repeater |
| CN111541508A (en) * | 2020-04-21 | 2020-08-14 | 中山大学 | LoRaWAN spread spectrum factor distribution method based on short-term DER and optimal load |
| CN111541508B (en) * | 2020-04-21 | 2021-07-27 | 中山大学 | LoRaWAN spread spectrum factor distribution method based on short-term DER and optimal load |
| CN114640382A (en) * | 2021-12-10 | 2022-06-17 | 浙江慧居智能物联有限公司 | Full-duplex self-frequency-modulation repeater based on modified LoRaWAN protocol and implementation method thereof |
| CN114640382B (en) * | 2021-12-10 | 2024-04-02 | 绿碳智能建筑(杭州)有限公司 | Full duplex self-frequency-modulation repeater based on modified LoRaWAN protocol |
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