CN104102162A - Embedded logic controller - Google Patents
Embedded logic controller Download PDFInfo
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- CN104102162A CN104102162A CN201410378963.5A CN201410378963A CN104102162A CN 104102162 A CN104102162 A CN 104102162A CN 201410378963 A CN201410378963 A CN 201410378963A CN 104102162 A CN104102162 A CN 104102162A
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- logic controller
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Abstract
The invention discloses an embedded logic controller. The embedded logic controller comprises a main control board and a core board connected through a GPIO interface, wherein the main control board is connected with a sensor, a static memory, a dynamic memory, an SD card, input expansion boards and input expansion boards and provided with a communication interface. A battery is arranged in the main control board. The core board is an ARM processor. The input expansion board is a 16-point input expansion board provided with 16 on-off input channels for connecting with peripheral input equipment. The output expansion board is a 16-point output expansion board provided with 16 on-off output channels for connecting with peripheral output equipment. The sum of the number of the 16-point input expansion board and the 16-point output expansion board is less than or equal to 8. The embedded logic controller has beneficial effects that the embedded logic controller can support larger program capacity, larger data capacity, richer communication mode and higher processing speed through the reasonable architecture and rich hardware resources and can meet the intelligent control requirement of an expressway tunnel.
Description
Technical field
The present invention relates to controller technology field, be specifically related to a kind of embedded logic controller.
Background technology
China's expressway construction develops rapidly, and vcehicular tunnel also constantly increases thereupon.In the environment in sealing, once have an accident in tunnel, particularly fire, often causes serious casualties and property loss.Therefore, the illumination in tunnel operation process, the problems such as electromechanics, fire fighting device of ventilating are subject to government and society all circles and more and more pay close attention to.
Therefore, probe into the Safety Management Measures of freeway tunnel, build reliable, stable, advanced, economic and extendible rational tunnel illumination, the intelligent control system dynamo-electric, fire fighting device of ventilating, for support vehicles safety traffic, there is important demonstration meaning.The feature of the singularity having from vcehicular tunnel itself and tunnel operation and management system, can find out that the design, setting, system disposition of tunnel operation and management facility are because relating to more factor more complicated, having relatively high expectations.Therefore be badly in need of in the market a high integration of exploitation, multifunctional industrial level intelligent controller.
Summary of the invention
For solving the technological deficiency that can not effectively realize the Based Intelligent Control of illumination of highway tunnel, ventilate electromechanics, fire fighting device in prior art, the present invention designs a kind of embedded logic controller, realized illumination of highway tunnel, the object of the Based Intelligent Control of dynamo-electric, the fire fighting device of ventilating, also effectively reduce accident rate in tunnel simultaneously.
For achieving the above object, the technical solution used in the present invention is:
A kind of embedded logic controller, comprise by GPIO interface be connected master control borad and core board, wherein, on master control borad, be connected with on sensor, static memory, dynamic storage, SD card, input expanding plate and output expansion board and master control borad and offer communication interface.This embedded logic controller can be realized illumination of highway tunnel, the Based Intelligent Control dynamo-electric, fire fighting device of ventilating, and is easy to expansion, and system is flexible, easy to operate, and generalization is stronger.
Further, in master control borad plate, be built-in with battery.Can accomplish still can preserve after the information power-off such as user program, input power is DC24V, safety, convenient, reliable.
Preferably, core board is arm processor.Above-mentioned arm processor is based on Cortex-A8 framework, and its instruction speed reaches 720M, and has MMU and D-CACHE, I-CACHE.By improving the performance of arm processor, can make embedded logic controller of the present invention easily move embedded OS.Can overcome various rugged environments, and various interference, low in energy consumption, allow Industry Control more rulyly carry out.
Preferably, input expanding plate is 16 input expanding plates, is provided with 16 for accessing the switching value input channel of external input equipment on it.When external input equipment can increase this input expanding plate when 16 loops on more than embedded logic controller.
Preferably, output expansion board is 16 output expansion board, is provided with 16 for accessing the switching value output channel of peripheral output device on it.When peripheral output device can increase this output expansion board during more than 16 loops of embedded logic controller.The number sum of 16 input expanding plates and 16 output expansion board is no more than 8.
Between further, between input expanding plate/output expansion board/input expanding plate is all connected by MODBUS protocol communication with exporting between expansion board.Mature and reliable.
Preferably, SD card is large capacity SD card.Be used for storing debugging recording and duty.
Preferably, communication interface comprises analog quantity equipment interface, cable interface, serial equipment interface; Wherein, analog quantity equipment interface comprises analog/digital amount input channel, analog/digital amount output channel, and network communication interface comprises ethernet interface, and serial equipment interface comprises RS232 serial communication interface and RS485 serial communication interface.By introducing usb communication and tcp/ip communication, not only can realize at a high speed communication easily, and can follow other commercial unit networkings, meet the various application of user.
Preferably, on master control borad, status indicator lamp is installed.Installment state pilot lamp can facilitate user to investigate fault.
Beneficial effect of the present invention is: by rational framework and abundant hardware resource, make this embedded logic controller can support larger program capacity, larger data capacity, abundanter communication mode, higher processing speed, completely the demand of the Based Intelligent Control of freeway tunnel.
Brief description of the drawings
Fig. 1 is the structure diagram of embedded logic controller of the present invention;
Fig. 2 is the annexation schematic diagram of master control borad of the present invention, core board and 16 input expanding plates;
Fig. 3 is the annexation schematic diagram of master control borad of the present invention, core board and 16 output expansion board.
Embodiment
Below in conjunction with accompanying drawing, structure of the present invention is explained in detail to explanation.
As shown in Figure 1-2, a kind of embedded logic controller provided by the invention, comprise by GPIO interface be connected master control borad and core board, wherein, on master control borad, be connected with on sensor, static memory, dynamic storage, SD card, input expanding plate and output expansion board and master control borad and offer communication interface.This embedded logic controller can be realized illumination of highway tunnel, the Based Intelligent Control dynamo-electric, fire fighting device of ventilating, and is easy to expansion, and system is flexible, easy to operate, and generalization is stronger.
A kind of embedded logic controller provided by the invention, is built-in with battery in master control borad plate.Can accomplish still can preserve after the information power-off such as user program, input power is DC24V, safety, convenient, reliable.
A kind of embedded logic controller provided by the invention, core board is arm processor.Above-mentioned arm processor is based on Cortex-A8 framework, and its instruction speed reaches 720M, and has MMU and D-CACHE, I-CACHE.By improving the performance of arm processor, can make embedded logic controller of the present invention easily move embedded OS.Can overcome various rugged environments, and various interference, low in energy consumption, allow Industry Control can more stablize ruly carrying out.
Dynamic storage adopts DDR2/3 dynamic storage, and memory capacity is more than or equal to 1G byte.This dynamic storage is used at embedded logic controller operational process deposit operation system program, user program, inputoutput buffer (map section), timer, counter, internal relay etc.Dynamic storage coordinates high performance arm processor, make the execution speed of the user program of embedded logic controller of the present invention can fast 10 times of left and right than conventional small PLC, and can move the software resource of magnanimity, can meet the demand of any PLC user to software.
Static memory adopts NorFlash, and it such as, for storing embedded OS program and hardware drive program (network port driving, USB interface driving, the driving of SD card, the driving of CAN controller, serial port drive, SPI driving, I2C driving, Timer driving etc.).In the time that embedded logic controller of the present invention brings into operation, be written into hardware drive program and embedded OS program by arm processor from this static memory, thereby user program is run on embedded OS, greatly improved the performance of product.
Static memory, dynamic storage adopt serial storage SPI DataFlash, for storing user data.
A kind of embedded logic controller provided by the invention, input expanding plate is 16 input expanding plates, is provided with 16 for accessing the switching value input channel of external input equipment on it.Input voltage is DC24V, when external input equipment can increase this input expanding plate when 16 loops on more than embedded logic controller.
A kind of embedded logic controller provided by the invention, output expansion board is 16 output expansion board, is provided with 16 for accessing the switching value output channel of peripheral output device on it.Output voltage is DC24V, when peripheral output device can increase this output expansion board during more than 16 loops of embedded logic controller.The number sum of 16 input expanding plates and 16 output expansion board is no more than 8.Between input expanding plate/output expansion board between/input expanding plate is all connected by MODBUS protocol communication with exporting between expansion board.Mature and reliable.
A kind of embedded logic controller provided by the invention, SD card is large capacity SD card.Be used for storing debugging recording and duty.
A kind of embedded logic controller provided by the invention, communication interface comprises analog quantity equipment interface, cable interface, serial equipment interface; Wherein, analog quantity equipment interface comprises analog/digital amount input channel, analog/digital amount output channel, and network communication interface comprises ethernet interface, and serial equipment interface comprises RS232 serial communication interface and RS485 serial communication interface.Status indicator lamp is installed on master control borad.Installment state pilot lamp can facilitate user to investigate fault.
The present invention, by introducing usb communication and tcp/ip communication, not only can realize at a high speed communication easily, and can follow other commercial unit networkings, meets the various application of user.
Embedded logic controller of the present invention, by above-mentioned hardware structure, make it can introduce embedded multiple task operating system, thereby realize system software, CAN procotol, usb protocol stack, ICP/IP protocol stack, FAT file system, the GPRS radio communication of embedded logic controller based on embedded OS.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing in flesh and blood of the present invention, be equal to and replace and simple modifications etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an embedded logic controller, it is characterized in that, comprise by GPIO interface be connected master control borad and core board, wherein, on master control borad, be connected with on sensor, static memory, dynamic storage, SD card, input expanding plate and output expansion board and master control borad and offer communication interface.
2. a kind of embedded logic controller according to claim 1, is characterized in that, in master control borad plate, is built-in with battery.
3. a kind of embedded logic controller according to claim 1, is characterized in that, core board is arm processor.
4. a kind of embedded logic controller according to claim 1, is characterized in that, input expanding plate is 16 input expanding plates, offers 16 for accessing the switching value input channel of external input equipment on it.
5. a kind of embedded logic controller according to claim 4, is characterized in that, output expansion board is 16 output expansion board, offers 16 for accessing the switching value output channel of peripheral output device on it.
6. a kind of embedded logic controller according to claim 5, is characterized in that, the number sum of 16 input expanding plates and 16 output expansion board is no more than 8.
7. a kind of embedded logic controller according to claim 6, is characterized in that, between input expanding plate/output expansion board between/input expanding plate is all connected by MODBUS protocol communication with exporting between expansion board.
8. a kind of embedded logic controller according to claim 1, is characterized in that, SD card is large capacity SD card.
9. a kind of embedded logic controller according to claim 1, is characterized in that, communication interface comprises analog quantity equipment interface, cable interface, serial equipment interface; Wherein, analog quantity equipment interface comprises analog/digital amount input channel, analog/digital amount output channel, and network communication interface comprises ethernet interface, and serial equipment interface comprises RS232 serial communication interface and RS485 serial communication interface.
10. a kind of embedded logic controller according to claim 1, is characterized in that, status indicator lamp is installed on master control borad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410378963.5A CN104102162A (en) | 2014-08-04 | 2014-08-04 | Embedded logic controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378963.5A CN104102162A (en) | 2014-08-04 | 2014-08-04 | Embedded logic controller |
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| CN104102162A true CN104102162A (en) | 2014-10-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108052469A (en) * | 2018-01-24 | 2018-05-18 | 哈工大机器人（合肥）国际创新研究院 | A kind of interface expansion board based on TX2 core boards |
| CN109542387A (en) * | 2018-10-18 | 2019-03-29 | 上海庆科信息技术有限公司 | A kind of core board, expansion board and intelligent sound equipment |
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| CN108052469A (en) * | 2018-01-24 | 2018-05-18 | 哈工大机器人（合肥）国际创新研究院 | A kind of interface expansion board based on TX2 core boards |
| CN109542387A (en) * | 2018-10-18 | 2019-03-29 | 上海庆科信息技术有限公司 | A kind of core board, expansion board and intelligent sound equipment |
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Application publication date: 20141015 |
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