CN205210626U - Embedded network data communication control unit - Google Patents
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- CN205210626U CN205210626U CN201521081934.9U CN201521081934U CN205210626U CN 205210626 U CN205210626 U CN 205210626U CN 201521081934 U CN201521081934 U CN 201521081934U CN 205210626 U CN205210626 U CN 205210626U
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Abstract
The utility model discloses an embedded network data communication control unit, including embedded microprocessor, DDR3 RAM module, NAND flash module, magnetism memory chip, SD card, RS485 module, ethernet module, clock chip, LCD and touch -sensitive screen, embedded microprocessor adopts ARM treater AM3354, DDR3RAM module, NAND flash module, magnetism memory chip, SD card, ethernet module, clock chip, LCD and touch -sensitive screen all are connected with AM3354, RS485 module is connected with the STM32F103 chip, and the STM32F103 chip is kept apart chip ADUM3151 through the numeral and is connected with AM3354. Ethernet communication and the communication of multichannel RS485 industrial bus can be realized to it to have functions such as data processing and data storage. This equipment is applicable to the data communication between the different communication interface equipment to but the nimble configuration and the system expansion of implementation system.
Description
Technical field
The utility model belongs to embedded control system technical field, is specifically related to a kind of built-in network communication controler.
Background technology
Ethernet has advantages such as being widely used, cheap, traffic rate is high, software and hardware rich choice of products, application supporting technology are ripe, at present its resource management layer in industrial enterprise's complex automatic system, perform fabrication layer and be widely applied, and presenting the trend directly applying to Industry Control scene to downward-extension, Industrial Ethernet plays an increasingly important role in the interconnection between the field apparatus in industrial enterprise's complex automatic system and information integerated.
Fieldbus refers to the data bus of digital, serial between the aut.eq. that is arranged in manufacture or the field device of process area and pulpit, multi-point, is the communication system of digital, two-way, the multistation connecting smart devices and automated system.Mainly solve the digital communication between the field apparatuss such as the intelligent instrumentation of industry spot, controller, topworks and the information problem of transmission between these field control equipment and advanced control system (ACS).
Industrial Ethernet combines with fieldbus, is the trend of current technical development.The various control system that enterprise internal management network and fieldbus networks form are connected by " specialized equipment " by it, carry out real-time data acquisition and control.Relatively more typical application such as French Schneider company releases the concept of " transparent additive ", system architecture as shown in Figure 1, unimpeded transparent network is formed by the instrument of the commerce Net of factory, the manufacture network in workshop and field level, device network, and combine with Web function, form entirety with the ecommerce of factory, materials supply chain and ERP etc.。As can be seen here, network controller is very crucial equipment in such a system.The effect that this equipment serves in this multi-layer network system " forming a connecting link ", very strong real-time control and data acquisition function to be shown to fieldbus networks, highly reliable data to be had to upper strata and preserve (should backup functionality be had if desired), the functions such as data conversion and data communication.
At present in such multi-layer network system, the traditional industry spot many employings PC (or industrial computer) of many employings adds Fieldbus Control card and carries out networking.Its principle of work is by control card by industrial field bus (CAN, RS485 bus) and the various controllers on production line, sensor, and data collector carries out communication, gathers data and the duty of production line; The interface bus (isa bus, pci bus, usb bus) that control card is provided by PC again carries out exchanges data with PC level (industrial computer) or the webserver; Last PC (industrial computer) or the webserver carry out information interaction by LAN (Local Area Network) in top management.This data-transmission mode based on PC and control card has not enough:
1. the complex structure of system.No matter be that PC or server all have the hardware system of a set of complexity and huge operation system of software, the reliability of system is poor, is difficult to ensure long-time continual work.
2. many resource long-terms need not cause waste.Because action is single, much software, hardware resource do not use in such a system, cause the waste of resource.
3., because the operating system of PC or server is easily subject to the invasion of the various viruses of automatic network, the security of system is also the problem needing to consider.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of built-in network communication controler.It can realize ethernet communication and communicate with multichannel RS485 industrial bus, and has the function such as data processing and data storage.This equipment is applicable to the data communication between different communication interfacing equipment, and the flexible configuration of feasible system and system extension.
The utility model is achieved through the following technical solutions:
A kind of built-in network communication controler, comprise embedded microprocessor, DDR3RAM module, NANDFlash module, magnetic memory chip, SD card, RS485 module, ethernet module, clock chip, liquid crystal display and touch-screen, described embedded microprocessor adopts arm processor AM3354, and described DDR3RAM module, NANDFlash module, magnetic memory chip, SD card, ethernet module, clock chip, liquid crystal display are all connected with AM3354 with touch-screen; RS485 module is connected with STM32F103 chip, and STM32F103 chip is connected by digital isolating chip ADUM3151 and AM3354.
In technique scheme, AM3354 is connected with magnetic memory chip by SPI universal serial bus,
In technique scheme, AM3354 is connected with clock chip by I2C bus.
In technique scheme, the power supply end of RS485 module is provided with isolated from power chip I TB0505-3W.
Advantage of the present utility model and beneficial effect are:
The utility model, using AM3354 embedded microprocessor as the core of controller, has the function of ethernet communication and RS485 field bus communication simultaneously, possesses the function that data store, and can meet the functions such as data conversion and data communication; This equipment is applicable to the data communication between different communication interfacing equipment, and the flexible configuration of feasible system and system extension; Simultaneously owing to being the specialized equipment adopting embedded design, make equipment work more reliable.Simultaneously, described RS485 module adopts the design of two MCU, the low side ARM of a special selection Cortex-M3 is responsible for RS485 data communication, improve the real-time of data acquisition, and controller adopts power source special isolation module and data isolation chip, carry out the completely isolated of embedded Control part and field bus communication part, substantially increase the reliability of system.
Accompanying drawing explanation
Fig. 1 is the hardware block diagram of built-in network communication controler in embodiment.
Fig. 2 is the circuit connection diagram of RS485 module in embodiment.
Embodiment
The technical solution of the utility model is further illustrated below in conjunction with specific embodiment.
A kind of built-in network communication controler involved by the utility model, comprises embedded microprocessor (AM3354), DDR3RAM module, NANDFlash module, magnetic memory chip, SD card, RS485 module, ethernet module, clock chip, liquid crystal display and touch-screen.Its overall hardware block diagram as shown in Figure 1.
Described embedded microprocessor is the core of controller, the real-time control of, plurality of devices a large amount of as bottom and information collecting device, microprocessor not only has arithmetic capability at a high speed and data-handling capacity, also should possess bus driver ability at a high speed, realizes big data quantity and to handle up function.In the utility model, embedded microprocessor adopts Sitare series A RM processor A M3354 as main control chip, it is a high performance Cortex-A8 framework technical grade processor, built-in POWERVRSGX graphics accelerator, real-time unit able to programme (is separated from ARM kernel with industrial communication subsystem (PRU-ICSS), thus achieve flexible configuration in transmission and control and have more high efficiency possibility), guarantee system has high-performance while low power operation.
AM3354 is connected with the DDR3RAM module of 512MB and the NANDFlash module of 256MB, and it is respectively used to data and stores and program operation; AM3354 is connected with a slice magnetic memory chip by SPI universal serial bus simultaneously, stores as critical data, selects the main cause of magnetic memory chip to be that magnetic memory chip has the advantages that read or write speed is fast, " unlimited " is erasable; And AM3354 also extends out a SD card, for derivation and the importing of large data.
Described RS485 module is as industrial field bus interface, and in order to improve the real-time of data acquisition, adopt the design of two MCU, the low side ARM (model is STM32F103) of the special Cortex-M3 of selection is responsible for RS485 data communication.Simultaneously in order to reduce the impact of external environment condition interference on equipment, controller adopts power source special isolation module and data isolation chip, carries out the completely isolated of embedded Control part and field bus communication part, substantially increases the reliability of system.As shown in Figure 2, the power supply end of RS485 module is provided with isolated from power chip I TB0505-3W; First AM3354 connects (being connected by spi bus) by digital isolating chip ADUM3151 and STM32F103, then by STM32F103 and RS485 model calling (being connected by UART bus), thus both improved the real-time of data acquisition, in turn ensure that the interference free performance of communication.
Described ethernet module is connected with AM3354, and ethernet module meets ICP/IP protocol, realizes directly being connected with internet by ethernet module.
Described liquid crystal display and touch-screen are man-machine interaction unit, and for the mode of operation of system manager to network controller, parameter is arranged, and watches the duty of controller.Liquid crystal display is connected with the USART mouth of AM3354 with touch-screen.
AM3354 is connected with clock chip by I2C bus, and AM3354 also connects JTAG debug interface unit and usb interface unit.
Above exemplary description is done to the utility model; should be noted that; when not departing from core of the present utility model, any simple distortion, amendment or other those skilled in the art can not spend the equivalent replacement of creative work all to fall into protection domain of the present utility model.
Claims (4)
1. a built-in network communication controler, it is characterized in that: comprise embedded microprocessor, DDR3RAM module, NANDFlash module, magnetic memory chip, SD card, RS485 module, ethernet module, clock chip, liquid crystal display and touch-screen, described embedded microprocessor adopts arm processor AM3354, and described DDR3RAM module, NANDFlash module, magnetic memory chip, SD card, ethernet module, clock chip, liquid crystal display are all connected with AM3354 with touch-screen; RS485 module is connected with STM32F103 chip, and STM32F103 chip is connected by digital isolating chip ADUM3151 and AM3354.
2. a kind of built-in network communication controler according to claim 1, is characterized in that: AM3354 is connected with magnetic memory chip by SPI universal serial bus.
3. a kind of built-in network communication controler according to claim 1, is characterized in that: AM3354 is connected with clock chip by I2C bus.
4. a kind of built-in network communication controler according to claim 1, is characterized in that: the power supply end of RS485 module is provided with isolated from power chip I TB0505-3W.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521081934.9U CN205210626U (en) | 2015-12-20 | 2015-12-20 | Embedded network data communication control unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521081934.9U CN205210626U (en) | 2015-12-20 | 2015-12-20 | Embedded network data communication control unit |
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| CN205210626U true CN205210626U (en) | 2016-05-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644004A (en) * | 2017-01-05 | 2017-05-10 | 江西众加利高科技股份有限公司 | Digital weighing instrument based on embedded technology |
| CN107145111A (en) * | 2017-06-29 | 2017-09-08 | 泰姆瑞技术（深圳）有限公司 | A kind of method of controller and control targe equipment based on ARM chips |
| CN111787087A (en) * | 2020-06-28 | 2020-10-16 | 山西北斗经纬科贸股份有限公司 | Online desktop information platform operation system |
| CN113868177A (en) * | 2021-09-03 | 2021-12-31 | 中国科学院计算技术研究所 | Embedded intelligent computing system with easily-expanded scale |
| CN114460880A (en) * | 2022-02-10 | 2022-05-10 | 芯河半导体科技(无锡)有限公司 | Industrial Internet of things network management controller based on cotex-M3 |
-
2015
- 2015-12-20 CN CN201521081934.9U patent/CN205210626U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644004A (en) * | 2017-01-05 | 2017-05-10 | 江西众加利高科技股份有限公司 | Digital weighing instrument based on embedded technology |
| CN107145111A (en) * | 2017-06-29 | 2017-09-08 | 泰姆瑞技术（深圳）有限公司 | A kind of method of controller and control targe equipment based on ARM chips |
| CN111787087A (en) * | 2020-06-28 | 2020-10-16 | 山西北斗经纬科贸股份有限公司 | Online desktop information platform operation system |
| CN113868177A (en) * | 2021-09-03 | 2021-12-31 | 中国科学院计算技术研究所 | Embedded intelligent computing system with easily-expanded scale |
| CN114460880A (en) * | 2022-02-10 | 2022-05-10 | 芯河半导体科技(无锡)有限公司 | Industrial Internet of things network management controller based on cotex-M3 |
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