CN206470549U - A kind of micro embedded terminal - Google Patents
A kind of micro embedded terminal Download PDFInfo
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- CN206470549U CN206470549U CN201621428086.9U CN201621428086U CN206470549U CN 206470549 U CN206470549 U CN 206470549U CN 201621428086 U CN201621428086 U CN 201621428086U CN 206470549 U CN206470549 U CN 206470549U
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- isolator
- digital isolator
- mcu
- port
- isolators
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- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 2
- 230000006855 networking Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
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Abstract
A kind of micro embedded terminal, is specifically included：Insulating power supply module, rs485 communication interfaces, rs485 isolators, MCU, digital isolator, Darlington driving array, output switch parameter port, wireless Internet of Things module, Serial Extension EBI, bi-directional digital isolator, optical coupling isolator, On-off signal port；The MCU is connected with rs485 isolators, digital isolator, bi-directional digital isolator, optical coupling isolator respectively, the rs485 isolators are also connected with rs485 communication interfaces, the input of the Darlington driving array is connected with digital isolator, its output end is connected with output switch parameter port, and bi-directional digital isolator is also connected with wireless Internet of Things module, Serial Extension EBI；The output end of On-off signal port is connected with the input of optical coupling isolator.This application provides abundant communication interface, while having tri- kinds of communication modes of RS485, WiFi, I2C, facilitate user networking.
Description
Technical field
The utility model belongs to internet-of-things terminal and smart home field, specifically a kind of micro embedded terminal.
Background technology
Existing various embedded type terminal equipments are scattered in all trades and professions, every field, each place, if will
All these equipment are managed and safeguarded at the scene, equipment manufacturers or equipment owner are necessarily required to send a lot
Administrative staff.Obviously, their fund input can be increased by so doing.Although and long-distance management system has one when building in the early stage
Fixed input, but its operation and maintenance cost is relatively low, in the long run still both economical selection.And use remote management skill
It is postoperative to reduce management cost, improve the efficiency of management, Strengthening Management effect, therefore it is necessary important embedded to some
Terminal device carries out remote management.
As the existing industrial circle of the development automatic technology of information technology is progressively expanded among people's daily life.Closely
With the development of wireless communication technology over a little years, the internet of things networking mode of the combining wireless communication technology turns into focus.
Utility model content
In view of the foregoing defects the prior art has, this application provides a kind of micro embedded terminal, multichannel is employed
Isolate power supply module, and use the measures such as digital isolator, optical coupling isolator to ensure the electrical isolation of MCU and external environment,
And then ensure the reliability of system work.
To achieve the above object, the technical scheme of the application use is：A kind of micro embedded terminal, is specifically included：Every
From power module, rs485 communication interfaces, rs485 isolators, MCU, digital isolator, Darlington driving array, output switch parameter
Port, wireless Internet of Things module, Serial Extension EBI, bi-directional digital isolator, optical coupling isolator, On-off signal end
Mouthful；The MCU is connected with rs485 isolators, digital isolator, bi-directional digital isolator, optical coupling isolator respectively, described
Rs485 isolators are also connected with rs485 communication interfaces, and the input of the Darlington driving array is connected with digital isolator,
Its output end is connected with output switch parameter port, and bi-directional digital isolator also connects with wireless Internet of Things module, Serial Extension bus
Mouth is connected；The output end of On-off signal port is connected with the input of optical coupling isolator, and the insulating power supply module is this end
End power supply.
Further, insulating power supply module, including communication power supply, MCU power supplys, I/O power supplys.
The utility model can obtain following technique effect due to using above technical scheme：The application employs many
Road isolates power supply module, and used the measures such as digital isolator, optical coupling isolator ensure MCU and external environment it is electric every
From, and then ensure that the reliability of system work.This application provides abundant communication interface, at the same have RS485, WiFi,
Tri- kinds of communication modes of I2C, facilitate user networking.
Brief description of the drawings
The utility model has the width of accompanying drawing 6：
Fig. 1 is a kind of micro embedded terminal structure schematic diagram；
Fig. 2 is MCU units port distribution diagram；
Fig. 3 is optical coupling isolator；
Fig. 4 is two groups of digital isolators and Darlington driving array；
Fig. 5 is insulating power supply module；
Fig. 6 is RS485 isolators.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with the accompanying drawings and specific implementation
The utility model is described in detail example.
Embodiment 1
The present embodiment provides a kind of micro embedded terminal, specifically includes：Insulating power supply module, rs485 communication interfaces,
It is rs485 isolators, MCU, digital isolator, Darlington driving array, output switch parameter port, wireless Internet of Things module, serial
Expansion bus interface, bi-directional digital isolator, optical coupling isolator, On-off signal port；The MCU isolates with rs485 respectively
Device, digital isolator, bi-directional digital isolator, optical coupling isolator be connected, the rs485 isolators also with rs485 communication interfaces
It is connected, the input of the Darlington driving array is connected with digital isolator, and its output end is connected with output switch parameter port,
Bi-directional digital isolator is also connected with wireless Internet of Things module, Serial Extension EBI；The output end of On-off signal port
It is connected with the input of optical coupling isolator, the insulating power supply module is that this terminal is powered.
Further, insulating power supply module, including communication power supply, MCU power supplys, I/O power supplys.
Embodiment 2
The present embodiment is supplemented embodiment 1 in detail：
Fig. 5 show insulating power supply module, inputs as 10~30V of wide-voltage range, have the tunnel of 2 road isolation and amplifier 1 it is non-every
From output.
Fig. 2 show MCU units port distribution diagram, and IN0~IN7 is the optocoupler of input function port, IN0~IN7 and Fig. 3
Isolator is connected；0805LED is indicated as input signal in Fig. 3, and 4.3K resistance plays metering function, and 1K resistance is optocoupler aerial drainage electricity
Resistance, for preventing the small leakage current of input from causing optocoupler mistake to turn on.0.01uF electric capacity is used to input Key dithering.Work as DIn
Optocoupler conducting is pulled low INn during for low level, and low level is used as signal ON.OUT0~OUT7 is output function port in Fig. 2,
It is connected with corresponding ports in Fig. 4, is two groups of digital isolators and Darlington driving array in Fig. 4, wherein DISABLE is used for
Control input goes out to forbid, and when DISABLE is high level, the output low level of correspondence isolator, the function is used for system debug
When to port blocking export, and during the system failure the tight-lipped urgency in opposite end forbid output.0805LED works as end as output indicator
Mouth has can light during output action.U2, U5 are that Darlington drives array, for driving outside controlled device, wherein employing simultaneously
Join the way of output, maximum drive current can reach 1A.D19~D28 is diode, for preventing user's misconnection both positive and negative polarity from causing
Circuit is damaged.F1~F8 insures for self- recoverage, and when controlled load exceedes port current fan-out capability, temperature rise can be cut automatically
Disconnected output, temperature drop recovers normal ON state after failture evacuation is overloaded.Fig. 6 is RS485 isolators, and RXD reads for data
Port is taken, TXD is data sending terminal mouthful, and DE/RE enables to send to read.D18 is TVS, for preventing high-voltage breakdown communication core
Piece.F9, F10 insure for self- recoverage, and protection COM1 burns from short trouble.SPI port is used for and WiFi communication in Fig. 2
Module is connected, and WiFi module is connected in the way of being independently connected with SPI.TWI ports are I2C Serial Extensions, can by the port
Other functions such as extension sensor and two machine communication.JTAG is system debug port, for system firmware upgrading and internal memory monitoring
Purposes.
Present applicant proposes a kind of micro embedded terminal, the collection of on-site signal can be realized and right by the terminal
Other equipment is controlled, and the terminal has secondary development function, and user can carry out work(according to the development data of open-destination
Can be self-defined.Terminal employs isolation design, strong antijamming capability on power supply, it is ensured that the stability of system.Connect in output
Digital isolator has been used to carry out electrical isolation on mouthful, output driving drives array using Darlington, and there is provided be enough to promote relay
The driving current of device.Input port uses optical coupling isolator, and input and MCU are carried out into electrical isolation.Communication using rs485 and
Two kinds of wired and wireless communication modes of WiFi, rs485 can realize remote wire communication connection, and WiFi can be realized closely
Wireless communication connection, the communication directly can by mobile phone, tablet personal computer, wireless router etc. using WiFi module with Wifi
Equipment is communicated, and two kinds wired and wireless communication module is connected by bi-directional digital isolator with MCU, electrically makes
MCU isolates with external world's realization, it is ensured that the stability of system.Terminal has the Serial Extension mouthful of an isolation, is assisted using I2C buses
View, expansible sensor, I/O equipment etc..
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (2)
1. a kind of micro embedded terminal, it is characterised in that specifically include：Insulating power supply module, rs485 communication interfaces, rs485
Isolator, MCU, digital isolator, Darlington driving array, output switch parameter port, wireless Internet of Things module, Serial Extension are total
Line interface, bi-directional digital isolator, optical coupling isolator, On-off signal port；The MCU respectively with rs485 isolators, numeral
Isolator, bi-directional digital isolator, optical coupling isolator are connected, and the rs485 isolators are also connected with rs485 communication interfaces, institute
The input for stating Darlington driving array is connected with digital isolator, and its output end is connected with output switch parameter port, two-way number
Word isolator is also connected with wireless Internet of Things module, Serial Extension EBI；The output end and optocoupler of On-off signal port
The input of isolator is connected, and the insulating power supply module is that this terminal is powered.
2. a kind of micro embedded terminal according to claim 1, it is characterised in that insulating power supply module, including communication electricity
Source, MCU power supplys, I/O power supplys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621428086.9U CN206470549U (en) | 2016-12-24 | 2016-12-24 | A kind of micro embedded terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621428086.9U CN206470549U (en) | 2016-12-24 | 2016-12-24 | A kind of micro embedded terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206470549U true CN206470549U (en) | 2017-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621428086.9U Expired - Fee Related CN206470549U (en) | 2016-12-24 | 2016-12-24 | A kind of micro embedded terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206470549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531256A (en) * | 2019-07-26 | 2019-12-03 | 大连理工大学 | A kind of darlington array simulation electromagnetic relay switch amount output system |
-
2016
- 2016-12-24 CN CN201621428086.9U patent/CN206470549U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531256A (en) * | 2019-07-26 | 2019-12-03 | 大连理工大学 | A kind of darlington array simulation electromagnetic relay switch amount output system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 |
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| CF01 | Termination of patent right due to non-payment of annual fee |