CN206353799U - A kind of universal wireless data transmission of internet of things terminal - Google Patents
A kind of universal wireless data transmission of internet of things terminal Download PDFInfo
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- CN206353799U CN206353799U CN201621479209.1U CN201621479209U CN206353799U CN 206353799 U CN206353799 U CN 206353799U CN 201621479209 U CN201621479209 U CN 201621479209U CN 206353799 U CN206353799 U CN 206353799U
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Abstract
The utility model discloses a kind of universal wireless data transmission of internet of things terminal, including main MCU, outer net coupling part, some points of MCU and the radio frequency chip corresponding with each point of MCU difference；Some points of MCU are communicated to connect with each self-corresponding radio frequency chip respectively, constitute each wireless data sending submodule, the main MCU is communicated to connect with each point of MCU respectively, for the piece choosing to each wireless data sending submodule, the synchronization of clock and the processing of data, a point MCU in each wireless data sending submodule controls correspondence radio frequency chip to complete wireless data transceiving again, and main MCU is also realized and the network connection outside terminal by outer net coupling part.Universal wireless data transmission of internet of things terminal provided by the utility model, using a main MCU and some different types of wireless data sending submodules, practical communication condition automatic switchover communication modes in being applied according to Internet of Things, with advantages such as safe and secret communication, networking convenience, than more comprehensively meeting demand of the technology of Internet of things to wireless communication hardware.
Description
Technical field
The utility model is related to a kind of communication technical field, and more particularly to a kind of universal wireless data transmission of internet of things is whole
End.
Background technology
Data display, global Internet of Things market scale is up to 450,000,000,000 dollars within 2017, and China's Internet of Things market is advised
Mould is then expected to reach 750,000,000,000 yuan, and Internet of Things prospect of industrial development is wide.With the fast development of Internet of Things, from personal electric production
Product are to the gradual access network of the related application such as industrial machinery and sensor.Communication is the basis of network connection.Do not communicate, thing
The bulk information that networking is perceived effectively can not be exchanged and shared, so that the number based on these physical worlds can not be utilized
The multi-level Internet of Things application enriched according to producing.Radio communication is because its is simple in construction, cost is low, overcome wire communication some
In the case of the advantage such as difficult wiring turn into the emphasis studied at this stage.
Existing wireless data sending scheme has following several：
It is 2.4GHz wherein using the wireless data transmission terminal working frequency range of Bluetooth, Zigbee and Wifi technology,
4g frequency ranges based on mobile communication are different due to operator, are substantially distributed in 1800MHz-1900MHz, 2.3GHz and 2.5GHz etc.
In special frequency range.Can be seen that every kind of wireless transmission scheme from existing wireless communications scheme has respective advantage, such as uses
The scheme of Bluetooth technologies compares other schemes, and power consumption is relatively low, and safe transmission, but data can be realized based on frequency hopping
Transfer rate is relatively low, communication distance is shorter；Scheme based on ZigBee technology can be achieved on local compared to the advantage of other schemes
Interior quickly networking, while power consumption is relatively low, has the disadvantage increasing with network node, wireless data between node transmission delay compared with
Height, corresponding data transmission rate is relatively low；WiFi technology is compared with above two scheme, and data transmission rate is higher, increases in physical layer
Plus power amplifier module can realize remote-wireless data transfer, while being connected with gateway to be directly connected to
Internet.But WiFi technology power consumption is larger, although can be based on Mesh networkings, but its map network topological structure is to communication
Data transfer influence is larger.Wireless communication terminal based on WiFi technology also has the shortcomings that Information Security cannot be ensured；3G/
The radio communication system based on cellular technology such as 4G or GSM can use existing base station to realize remote wireless transmission, shortcoming
It is the remote districts that cannot be covered in base station, it is impossible to use.
The hardware configuration of existing wireless communications scheme such as Fig. 1 shows, mainly by MCU circuits and radio frequency chip circuit two parts structure
Into MCU main functions are operation respective protocol stacks, complete to control and data are transferred to radio frequency chip by certain agreement, penetrate
Frequency chip is mainly completed to modulate, demodulated, and the radio magnetic wave signal modulated is passed to physical space and received from physical space
Electromagnetic wave is believed.Application based on Bluetooth and WiFi typically uses this scheme.
Using the scheme of ZigBee technology with using Bluetooth and WiFi technology scheme difference to be, there is good
MANET characteristic.As shown in Fig. 2 in using ZigBee technology scheme, node is divided into 3 types, respectively telegon section
Point, router node and terminal node.Coordinator node main task is to build network, once network struction is finished, is deteriorated to
Router node.Router node mainly completes data routing function, the main data acquisition of terminal node and transmission.
Existing wireless data transmission scheme can be seen that existing scheme and can be only applied under some specified conditions more than.
Such as in terms of low-power consumption, Bluetooth has a natural advantage, and when larger to data transmission rate, WiFi is with the obvious advantage,
Zigbee advantage is that networking is simple and convenient.With the development of technology of Internet of things, Internet of Things market is to wireless communication technology
Demand is more and more comprehensive, especially weigh working frequency range, power consumption, data transmission rate, communication distance and can free networking etc. just
Face, existing wireless communications scheme can not meet Internet of Things simultaneously and develop in all directions.At this stage, not yet there is a kind of solution in the market
The Internet of Things general wireless data transmission terminal of above mentioned problem.
Utility model content
The utility model purpose is：A kind of universal wireless data transmission of internet of things terminal, the wireless data transmission are provided
Terminal is convenient with practical communication condition automatic switchover communication modes, safe and secret communication, networking in being applied according to Internet of Things
Etc. advantage.
The technical solution of the utility model is：
A kind of universal wireless data transmission of internet of things terminal, including main MCU, outer net coupling part, a some points of MCU
And the radio frequency chip corresponding with each point of MCU difference；Some points of MCU respectively with each self-corresponding radio frequency chip communication link
Connect, constitute each wireless data sending submodule, the main MCU is communicated to connect with each point of MCU respectively, for each wireless data sending submodule
Piece choosing, the synchronization of clock and the processing of data, point MCU in each wireless data sending submodule controls correspondence radio frequency chip to complete again
Wireless data transceiving, main MCU is also realized and the network connection outside terminal by outer net coupling part.
It is preferred that, the main MCU is MCU0, and each point of MCU is respectively MCU1, MCU2, MCU3 and MCU4, MCU1, MCU2,
The radio frequency chip of MCU3 connections corresponding with MCU4 is respectively Bluetooth chips, Zigbee chips, WiFi chip and specific frequency
Wireless data sending chip.
It is preferred that, the main MCU passes through I2C agreements connect four points of MCU respectively, and each point of MCU is connected by SPI protocol respectively
Connect the wireless data sending chip of Bluetooth chips, Zigbee chips, WiFi chip and specific frequency.
It is preferred that, MCU1 the and Bluetooth chips connect and compose low-consumption wireless transport module, for handling to logical
Communication distance is less demanding, and message transmission rate is relatively low and has the wireless data sending of rigors to Information Security.
It is preferred that, MCU2 the and Zigbee chips connect and compose wireless self-networking transport module, when environment has to networking
When demand, networking is carried out based on the submodule.
It is preferred that, the MCU3 and WiFi chip connect and compose high-power wireless transport module, when to message transmission rate
It is required that higher, communication distance farther out when, go to the module and carry out wireless data sending.
It is preferred that, the MCU3 and WiFi chip connect and compose high-power wireless transport module also increase have power amplification electricity
Road, meets the requirement to communication distance.
It is preferred that, the MCU4 and specific frequency wireless data sending chip connect and compose the wireless data transmission module of specific frequency；
When the transmission band to wireless data sending is required, the radio frequency chip of this wireless data transmission module is changed and adjusted.
It is preferred that, the outer net coupling part include be connected respectively with main MCU optical fiber interface, RJ45 interfaces, WiFi without
Line interface and AC bridge interfaces.
It is preferred that, the main MCU uses STM32 series monolithics, and each point of MCU is using STM8 series or uses in 8051
The single-chip microcomputer of core.
In Internet of Things application, when having demand to networking, wireless data transmission terminal is constituted based on Zigbee chips
Wireless self-networking transport module formation MANET, wireless communication data communicates in the LAN from group；When to data transmission rate
Higher when being required with communication distance, the high-power wireless transport module that main MCU automatically switches to WiFi chip composition is communicated；
When less to volume of transmitted data, communication distance is nearer, while when being required to Information Security, main MCU, which automatically switches, to be transformed into
The low-consumption wireless transport module communication that Bluetooth chips are constituted；When the frequency range to being wirelessly transferred is required, switch to
The wireless data sending submodule of specific frequency is transmitted.
The utility model has the advantages that：
Universal wireless data transmission of internet of things terminal provided by the utility model, using a main MCU and it is some not
The wireless data sending submodule of same type, practical communication condition automatic switchover communication modes in being applied according to Internet of Things, with peace
The advantages such as full secure communication, networking convenience, than more comprehensively meeting demand of the technology of Internet of things to wireless communication hardware.
Brief description of the drawings
Fig. 1 is the wireless data transmission model based on Bluetooth or WiFi technology；
Fig. 2 is the wireless data transmission model based on ZigBee technology；
The model for the universal wireless data transmission of internet of things terminal that Fig. 3 is proposed by the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe.
As shown in figure 3, the universal wireless data transmission of internet of things terminal disclosed in the utility model, including a master
MCU (MCU0), four points of MCU（MCU1、MCU2、MCU3、MCU4）With 4 kinds of corresponding different types of radio frequency chips,
And outer net coupling part.Main MCU is typically using performance more powerful MCU chip, such as STM32 series monolithics；MCU is divided to adopt
With the general MCU chip of performance, such as STM8 is serial or uses the single-chip microcomputer of 8051 kernels, and 4 kinds of radio frequency chips are respectively
Bluetooth chips, Zigbee chips, WiFi chip and specific frequency wireless data sending chip, also there is many manufacturer's handles at this stage
Together with MCU is done with monolithic radio frequency chip, but substantially do not have difference with the utility model structure.Main MCU is distinguished by I2C agreements
Four points of MCU are connected, four points of MCU connect Bluetooth chips, Zigbee chips and WiFi chip and spy by SPI protocol
Determine frequency wireless number and pass chip, specific frequency is elected 433MHz as, can actually changed according to demand.
Outer net coupling part is made up of 4 kinds of different type interfaces, is divided into wired connection and wireless connection.Wired connection is light
Fine interface, RJ45 interfaces and AC bridge interfaces, wireless connection are WiFi wave points.The optional 2.4GHz's of WiFi wireless connections
802.11bgn the 802.11ac with 5.8GHz.Main MCU is according to different situations or asks outside by different interface realizations and terminal
Internet connections.The four type interfaces except more than, can also add various means connection public networks according to different demands and lead to
News, such as GSM, Big Dipper short message communication module etc..
MCU1 and Bluetooth radio frequency chips connect and compose low-consumption wireless transport module, mainly handle to communication distance
Less demanding, message transmission rate is relatively low and has the wireless data sending of rigors to Information Security.MCU2 and Zigbee radio frequencies
Chip connects and composes wireless self-networking transport module, can be rapid based on the submodule when environment has demand to networking
Networking, all wireless terminals in the LAN can free wireless data transmission.MCU3 and WiFi module are connected and composed greatly
Power wireless transport module, when higher to data transmission rates demands, communication distance farther out when, the module can be gone to and entered
Row wireless data sending；Simultaneously if being required to communication distance, power amplification circuit can be added at the module rear.MCU4 and
433MHz wireless data sending chips connect and compose the wireless data transmission module in 433MHz band transmissions.When needs are passed in 433MHz frequency ranges
When defeated, it can adjust main MCU and be switched to the sub-module.
MCU0 passes through I2C connects MCU1, MCU2, MCU3, MCU4 respectively, MCU0 using performance more powerful MCU chip,
MCU0 main function is to select each submodular circuits, the synchronization of clock and the processing of data based on certain mechanism piece, Internet of Things without
Line data transmission terminal controls MCU in each submodule, submodule to control radio frequency chip to complete wireless data transceiving again by MCU0.
Submodule may have the situation that 2 kinds of modules are run simultaneously, such as Zigbee module and WiFi module are run simultaneously, or
Zigbee module and Bluetooth modules are run simultaneously.
In Internet of Things application, when having demand to networking, wireless data transmission terminal disclosed in the utility model can
With the wireless self-networking transport module formation MANET constituted based on Zigbee chips, wireless communication data is in the LAN from group
Interior communication；Higher when to data transmission rate and communication distance requirement, main MCU automatically switches to the high-power of WiFi chip composition
Wireless transport module is communicated, and the high-power wireless transport module that WiFi chip is constituted, which also increases, power amplification circuit, full
Requirement of the foot to communication distance；When less to volume of transmitted data, communication distance is nearer, while when being required to Information Security,
Main MCU, which automatically switches, is transformed into the low-consumption wireless transport module communication of Bluetooth chips composition；When the frequency to being wirelessly transferred
When section is required, the wireless data sending submodule for switching to specific frequency is transmitted.Pass through description above, it can be seen that this reality
Demand of the technology of Internet of things to wireless communication hardware is more comprehensively met with new ratio.
It should be strongly noted that the wireless data sending submodule connect behind main MCU of the present utility model can more than four
It is individual, the specific frequency wireless data sending chip of some other frequencies or the radio frequency chip of different systems can also be connect again, to meet not
Same signal transmission demand.Any improved technology made on this basis belong to protection domain of the present utility model it
It is interior.
Above-described embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with technique
People can understand content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.It is all
The modification done according to the Spirit Essence of the utility model main technical schemes, should all cover in protection domain of the present utility model
Within.
Claims (10)
1. a kind of universal wireless data transmission of internet of things terminal, it is characterised in that：Including a main MCU, outer net coupling part,
Some points of MCU and the radio frequency chip corresponding with each point of MCU difference；Some points of MCU respectively with each self-corresponding radio frequency core
Piece is communicated to connect, and constitutes each wireless data sending submodule, and the main MCU is communicated to connect with each point of MCU respectively, for each without line number
Point MCU passed in the piece choosing of submodule, the synchronization of clock and the processing of data, each wireless data sending submodule controls correspondence radio frequency again
Chip completes wireless data transceiving, and main MCU is also realized and the network connection outside terminal by outer net coupling part.
2. universal wireless data transmission of internet of things terminal according to claim 1, it is characterised in that：The main MCU is
MCU0, each point of MCU are respectively MCU1, MCU2, MCU3 and MCU4, the radio frequency chip difference of MCU1, MCU2 connection corresponding with MCU3
For Bluetooth chips, Zigbee chips, WiFi chip and specific frequency wireless data sending chip.
3. universal wireless data transmission of internet of things terminal according to claim 2, it is characterised in that：The main MCU leads to
Cross I2C agreements connect four points of MCU respectively, and each point of MCU connects Bluetooth chips, Zigbee cores by SPI protocol respectively
The wireless data sending chip of piece, WiFi chip and specific frequency.
4. universal wireless data transmission of internet of things terminal according to claim 3, it is characterised in that：The MCU1 and
Bluetooth chips connect and compose low-consumption wireless transport module, less demanding to communication distance for handling, data transfer speed
Rate is relatively low and has the wireless data sending of rigors to Information Security.
5. universal wireless data transmission of internet of things terminal according to claim 3, it is characterised in that：The MCU2 and
Zigbee chips connect and compose wireless self-networking transport module, when environment has demand to networking, are entered based on the submodule
Row networking.
6. universal wireless data transmission of internet of things terminal according to claim 3, it is characterised in that：The MCU3 and
WiFi chip connects and composes high-power wireless transport module, when higher to data transmission rates demands, communication distance farther out when
Wait, go to the module and carry out wireless data sending.
7. universal wireless data transmission of internet of things terminal according to claim 6, it is characterised in that：The MCU3 and
WiFi chip, which connects and composes high-power wireless transport module and also increased, power amplification circuit, meets the requirement to communication distance.
8. universal wireless data transmission of internet of things terminal according to claim 3, it is characterised in that：The MCU4 and spy
Determine frequency wireless number and pass the wireless data transmission module that chip connects and composes specific frequency；When the transmission band to wireless data sending is required
When, change and adjust the radio frequency chip of this wireless data transmission module.
9. universal wireless data transmission of internet of things terminal according to claim 3, it is characterised in that：The outer net connection
Part includes optical fiber interface, RJ45 interfaces, WiFi wave points and AC bridge interfaces.
10. universal wireless data transmission of internet of things terminal according to claim 3, it is characterised in that：The main MCU is adopted
STM32 series monolithics are used, each point of MCU is using STM8 series or the single-chip microcomputer using 8051 kernels.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089491A (en) * | 2017-11-28 | 2018-05-29 | 武汉合康智能电气有限公司 | A kind of multi-channel-CAN communication bus ports-Extending method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089491A (en) * | 2017-11-28 | 2018-05-29 | 武汉合康智能电气有限公司 | A kind of multi-channel-CAN communication bus ports-Extending method and system |
| CN108089491B (en) * | 2017-11-28 | 2019-04-02 | 武汉合康智能电气有限公司 | A kind of multi-channel-CAN communication bus ports-Extending method and system |
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