CN106527291A - Mini-type embedded terminal - Google Patents
Mini-type embedded terminal Download PDFInfo
- Publication number
- CN106527291A CN106527291A CN201611210073.9A CN201611210073A CN106527291A CN 106527291 A CN106527291 A CN 106527291A CN 201611210073 A CN201611210073 A CN 201611210073A CN 106527291 A CN106527291 A CN 106527291A
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- China
- Prior art keywords
- isolator
- mcu
- port
- digital isolator
- input
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- 238000004891 communication Methods 0.000 claims abstract description 26
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 2
- 230000006855 networking Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 2
- 101000746134 Homo sapiens DNA endonuclease RBBP8 Proteins 0.000 description 1
- 101000969031 Homo sapiens Nuclear protein 1 Proteins 0.000 description 1
- 102100021133 Nuclear protein 1 Human genes 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Power Sources (AREA)
Abstract
A mini-type embedded terminal provided by the invention concretely comprises an isolated power module, a rs485 communication interface, a rs485 isolator, an MCU, a digital isolator, a Darlington driving array, an on-off output port, a wireless internet of things module, a serial extension bus interface, a two-way digital isolator, an optical coupled isolator and an on-off input port; the MCU is connected with the rs485 isolator, the digital isolator, the two-way digital isolator and the optical coupled isolator, the rs485 isolator is connected with the rs485 communication interface, the input end of the Darlington driving array is connected with the digital isolator, the output end of the Darlington driving array is connected with the on-off output port, and the two-way digital isolator is connected with the wireless internet of things module and the serial extension bus interface; and the output end of the on-off input port is connected with the input end of the optical coupled isolator. The mini-type embedded terminal provides an abundant communication interface, and has three communication modes of RS485, WiFi and I2C so as to facilitate user networking.
Description
Technical field
The invention 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
At the scene all these equipment are managed and are safeguarded, equipment manufacturers or equipment owner are necessarily required to send a lot
Management personnel.Obviously, do so can increase their fund input.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, still both economical selection in the long run.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 unit carries out remote management.
As the existing industrial circle of the development automatic technology of information technology is progressively expanded in the middle of people's daily life.Closely
As the development of wireless communication technology, the internet of things networking mode of combining wireless communication technology have become focus over a little years.
The content of the invention
In view of the foregoing defects the prior art has, this application provides a kind of micro embedded terminal, employs multichannel
Isolation supply module, and used 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.
For achieving the above object, the technical scheme of the application employing is：A kind of micro embedded terminal, specifically includes：Every
Array, output switch parameter are driven from power module, rs485 communication interfaces, rs485 isolators, MCU, digital isolator, Darlington
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 Darlington drives the input of array to be connected with digital isolator,
Its outfan is connected with output switch parameter port, and bi-directional digital isolator is also connect with wireless Internet of Things module, Serial Extension bus
Mouth is connected；The outfan 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 present invention is due to using above technical scheme, obtaining following technique effect：The application employ multichannel every
From supply module, and use the measures such as digital isolator, optical coupling isolator to ensure the electrical isolation of MCU and external environment, entered
And ensure that the reliability of system work.This application provides abundant communication interface, while having RS485, WiFi, I2C tri-
Communication mode is planted, facilitates user networking.
Description of the drawings
The present invention 6 width of total accompanying drawing：
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 that two groups of digital isolators and Darlington drive array；
Fig. 5 is insulating power supply module；
Fig. 6 is RS485 isolators.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings with specific embodiment pair
The present invention is described in detail.
Embodiment 1
The present embodiment provides a kind of micro embedded terminal, specifically includes：Insulating power supply module, rs485 communication interfaces,
Rs485 isolators, MCU, digital isolator, Darlington drive 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 is isolated 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 Darlington drives the input of array to be connected with digital isolator, and its outfan is connected with output switch parameter port,
Bi-directional digital isolator is also connected with wireless Internet of Things module, Serial Extension EBI；The outfan of On-off signal port
It is connected with the input of optical coupling isolator, the insulating power supply module is powered for this terminal.
Further, insulating power supply module, including communication power supply, MCU power supplys, I/O power supplys.
Embodiment 2
The present embodiment is supplemented in detail to embodiment 1：
Fig. 5 show insulating power supply module, is input into as 10～30V of wide-voltage range, have 2 road isolation and amplifier, 1 tunnel 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；In Fig. 3,0805LED is indicated as input signal, and 4.3K resistance plays metering function, and 1K resistance is optocoupler earial drainage electricity
Resistance, the small leakage current for preventing input cause optocoupler mistake to turn on.0.01uF electric capacity is used to be input into Key dithering.Work as DIn
For low level when optocoupler conducting be pulled low INn, low level is used as signal ON.In Fig. 2, OUT0～OUT7 is output function port,
Which is connected with corresponding ports in Fig. 4, is that two groups of digital isolators and Darlington drive array, wherein DISABLE to be used in Fig. 4
Control input goes out to forbid, and when DISABLE is high level, the output low level of correspondence isolator, the function are 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 can be lighted when having output action.U2, U5 are that Darlington drives array, for driving outside controlled device, wherein employing simultaneously
The connection 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 is insured for self- recoverage, and when controlled load is more than port current fan-out capability, temperature is raised and can be cut automatically
Disconnected output, temperature drop after failture evacuation is transshipped recover normal ON state.Fig. 6 is RS485 isolators, and RXD is that data are read
Port is taken, TXD is data is activation port, and DE/RE is to send to read to enable.D18 is TVS, for preventing high-voltage breakdown communication core
Piece.F9, F10 are insured for self- recoverage, and protection COM1 avoids short trouble and burns.In Fig. 2, SPI port is used for and WiFi communication
Module connects, and WiFi module is connected with SPI in the way of being independently connected.TWI ports are I2C Serial Extensions, can by the port
The other functions such as extension sensor and two machine communication.JTAG is system debug port, is upgraded for system firmware and internal memory monitoring
Purposes.
Present applicant proposes a kind of micro embedded terminal, the collection of on-site signal and right can be realized 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, there is provided be enough to promote relay
The driving current of device.Input port adopts optical coupling isolator, and input is carried out electrical isolation with MCU.Communication using rs485 and
Two kinds of wired and wireless communication modes of WiFi, rs485 are capable of achieving remote wire communication connection, and WiFi can be realized closely
Wireless communication connection, can directly pass through the communications with Wifi such as mobile phone, panel computer, wireless router using WiFi module
Equipment is communicated, and two kinds wired and wireless communication module is connected with MCU by bi-directional digital isolator, electrically makes
MCU is isolated with extraneous realization, it is ensured that the stability of system.Serial Extension mouth of the terminal with an isolation, is assisted using I2C buses
View, expansible sensor, I/O equipment etc..
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope of present disclosure, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, should all be included within the scope of the present invention.
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 drive array, output switch parameter port, wireless Internet of Things module, Serial Extension 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
Stating Darlington drives the input of array to be connected with digital isolator, and its outfan 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 outfan and optocoupler of On-off signal port
The input of isolator is connected, and the insulating power supply module is powered for this terminal.
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 |
|---|---|---|---|
| CN201611210073.9A CN106527291A (en) | 2016-12-24 | 2016-12-24 | Mini-type embedded terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611210073.9A CN106527291A (en) | 2016-12-24 | 2016-12-24 | Mini-type embedded terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106527291A true CN106527291A (en) | 2017-03-22 |
Family
ID=58337768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611210073.9A Pending CN106527291A (en) | 2016-12-24 | 2016-12-24 | Mini-type embedded terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106527291A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674562Y (en) * | 2003-01-20 | 2005-01-26 | 北京安控科技发展有限公司 | Number quantity input, output circuit |
| CN201845233U (en) * | 2010-11-16 | 2011-05-25 | 哈尔滨凯纳科技股份有限公司 | Internet-of-things data acquisition control instrument |
| CN102608944A (en) * | 2012-03-07 | 2012-07-25 | 北京瀚景锦河科技有限公司 | Expansion device for semaphore acquisition port and expansion system |
| CN103676866A (en) * | 2013-12-06 | 2014-03-26 | 苏州朗捷通智能科技有限公司 | Embedded networked multivariate input and output system |
-
2016
- 2016-12-24 CN CN201611210073.9A patent/CN106527291A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674562Y (en) * | 2003-01-20 | 2005-01-26 | 北京安控科技发展有限公司 | Number quantity input, output circuit |
| CN201845233U (en) * | 2010-11-16 | 2011-05-25 | 哈尔滨凯纳科技股份有限公司 | Internet-of-things data acquisition control instrument |
| CN102608944A (en) * | 2012-03-07 | 2012-07-25 | 北京瀚景锦河科技有限公司 | Expansion device for semaphore acquisition port and expansion system |
| CN103676866A (en) * | 2013-12-06 | 2014-03-26 | 苏州朗捷通智能科技有限公司 | Embedded networked multivariate input and output system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |