CN105759749A - FPGA-based intelligent communication controller - Google Patents
FPGA-based intelligent communication controller Download PDFInfo
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- CN105759749A CN105759749A CN201410808915.5A CN201410808915A CN105759749A CN 105759749 A CN105759749 A CN 105759749A CN 201410808915 A CN201410808915 A CN 201410808915A CN 105759749 A CN105759749 A CN 105759749A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention provides an FPGA-based intelligent communication controller. The FPGA-based intelligent communication controller comprises an ISA bus, also comprises an FPGA processor connected with the ISA bus, a CAN communication isolation module and an interface module used for providing an Ethernet interface, and further comprises a network transformer, a CAN communication interface, a power supply module for supplying power to the FPGA processor, and a temperature detection module, wherein the CAN communication isolation module, the interface module and the temperature detection module are respectively connected with the FPGA processor, the network transformer is connected with the interface module, and the CAN communication interface is connected with the CAN communication isolation module; and the network transformer is connected in parallel with a voltage detection module, a current detection module is connected in series between the CAN communication isolation module and the FPGA processor, and the temperature detection module is connected with the FPGA processor. According to the invention, the board space is effectively saved, the system power consumption is reduced, and the equipment safety is improved.
Description
Technical field
The invention belongs to Control on Communication field, be specifically related to a kind of Intelligent Communication Controllers based on FPGA.
Background technology
When prior art MODBUS, PROFIBUS, CAN are still the Primary communication mode of all multi-control apparatus, signal collecting device, and namely Ethernet can realize this function with network interface with the PC that speed is fast, the bit error rate is low, communication device configured is convenient and general of communication, without increasing special conversion equipment and becoming current popular communication mode.Then, above-mentioned communication and EPA communication became gradually in current communication period of depositing.
Along with developing rapidly of electronic technology and computer technology, video image technology obtains in recent years to be paid attention to and significant progress greatly, people, when selecting study and entertainment information, are no longer simple uninteresting Word messages, and colourful picture and video information increasingly become the first-selection of people.And the requirement of video and image processing techniques is constantly risen, and new demand expedites the emergence of new technology, being mainly reflected in from standard clear (SD) to high definition (HD), resolution is more and more higher, it is desirable to the data volume processed in real time is increasing；Video and Image Compression are day by day complicated, the intelligentized requirement of video system are improved, such as intelligence shooting, motion detection, Object identifying, multichannel, picture-in-picture, transparency overlay effect etc.；The raising of consumer's enjoing ability, it is desirable to image is more stable, apparent, color is more gorgeous, brightness more meets the requirement of sense of human eye.
FPGA, i.e. field programmable gate array, it is the product of development further on the basis of the programming devices such as PAL, GAL, CPLD.It is to occur as a kind of semi-custom circuit in special IC (ASIC) field, has both solved the deficiency of custom circuit, has overcome again the shortcoming that original programming device gate circuit number is limited.
FPGA is made up of array of programmable logic cells, interconnection resource and programmable I/O cell array, and FPGA comprises abundant gate, depositor and I/O resource.A piece of fpga chip just can realize the system that hundreds of even more standard digital integrated circuits realize.
The flexible structure of FPGA, its logical block, interconnector able to programme and I/O unit can by user programs, it is possible to achieve any logic function, meet various design requirement.Its speed is fast, low in energy consumption, and highly versatile is particularly well-suited to the design of complication system.Use FPGA can also realize dynamic configuration, on-line system reconstruct (can system run not in the same time, change the function of circuit on demand, make system possess the task of multiple space correlation or time correlation) and the function such as hardware softening, software hardening.
In view of controller of high frequency fatigue tester magnitude control is relatively larger, function is complicated, therefore in development process, on the basis of traditional experiment machine controller, combination by both FPGA technology and microcomputer technology, carry out the performance of General Promotion controller system, make the work efficiency of complete machine, control accuracy and electrical system reliability be improved, and easy to operate and be no lack of the advance of technology.
nullContinuous progress along with semiconductor technology，FPGA has not only taken leave of the expensive of traditional view，And performance is also obviously improved，Simultaneously continuous more integrated new hardware resources，Such as embedded DSP block、Embedded RAM block、Phaselocked loop (PLL)、High speed outer memorizer meets I] (DDR) etc.，As a platform，FPGA has obviously been very suitable for high performance video and image technique，Scan picture is done with FPGA，Large Copacity due to FPGA、Motility，The great parallel processing capability of image can be realized，Speed can be faster than PC and digital signal processing chip，SOPC (on sheet programmable system) can be realized，Help user's custom-built system，Shorten the cycle of research and development of products and update，Quickly make oneself characteristic，The product of independent intellectual property right，Increasing research worker starts to be devoted to the video image processing technology about FPGA.
Chinese patent application " 201210515411.5 " provides a kind of Intelligent Communication Controllers based on ARM technology, refers specifically to one and disclosure satisfy that existing Primary communication mode: the communication controler of the intelligent interconnection of TCP/IP Ethernet, MODBUS industrial communication standard agreement, PROFIBUS industrial communication standard agreement and CAN communication protocol.The Intelligent Communication Controllers told a story, using ARM-7 chip as core processor, has the configurations such as ethernet mac communication processor, asynchronous communication processor, CAN communication processor, intervalometer, enumerator, AD conversion；Software section adopts UCOS/II embedded OS, utilizes the management systemic-function of perfect real-time, the multitask of this operating system, multithreading, makes various communication mode realize good interconnection and translation function.
But this Intelligent Communication Controllers uses module more, therefore takies trigger space big, and system power dissipation is bigger；Additionally easily there is superheating phenomenon in Intelligent Communication Controllers work process, cause circuit board damage, the function its operating current, voltage and temperature not being detected in prior art and reporting to the police.
Summary of the invention
It is an object of the invention to overcome existing communication controller to take the problem that trigger space is big, system power dissipation is relatively big, do not have temperature, electric current, voltage detecting and warning function.
For this, the invention provides a kind of Intelligent Communication Controllers based on FPGA, including isa bus, FPGA processor that described Intelligent Communication Controllers includes being connected with isa bus, CAN communication isolation module and for providing the interface module of a road Ethernet interface；
Including network transformer, CAN communication interface, the power module powered for FPGA processor, temperature detecting module；
Described CAN communication isolation module, interface module, temperature detecting module are connected with FPGA processor respectively, and network transformer is connected with interface module, and CAN communication interface is connected with CAN communication isolation module；
Being parallel with voltage detection module on described network transformer, be in series with current detection module between CAN communication isolation module and FPGA processor, temperature detecting module is connected with FPGA processor.
Above-mentioned current detection module includes amperometric and the current vs's device being sequentially connected with it, current-mode digital signal converter.
Above-mentioned voltage detection module includes voltage detector and connected voltage-contrast device, voltage-mode digital signal converter.
Said temperature detection module includes temperature detector and connected mould digital signal converter.
Above-mentioned interface module adopts DM9008F chip.
Intelligent Communication Controllers based on FPGA provided by the invention, four tunnel serial communication interfaces able to programme of the prior art, programmable parallel input/output chip and chip select device are replaced with a FPGA processor, thus effectively having saved the space of trigger, reduce system power dissipation.The current detection module that the present invention sets up, temperature detecting module, voltage detection module can monitor the operating current of FPGA processor, running voltage and operating temperature.Alarm module can carry out, when FPGA processor operating temperature is too high, the warning reminding user that pipes.Above-mentioned design improves safety during Intelligent Communication Controllers work.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is a kind of Intelligent Communication Controllers circuit block diagram based on FPGA.
Fig. 2 is the circuit block diagram of current detection module of the present invention.
Fig. 3 is the circuit block diagram of voltage detection module of the present invention.
Fig. 4 is the circuit block diagram of temperature detecting module of the present invention.
Detailed description of the invention
Embodiment one:
The defect that trigger space is big, system power dissipation is relatively big, do not have temperature, electric current, voltage detecting and warning function in order to overcome existing communication controler to take, present embodiments provides a kind of Intelligent Communication Controllers based on FPGA as Figure 1-4.
Controller noted above includes isa bus, FPGA processor that described Intelligent Communication Controllers includes being connected with isa bus, CAN communication isolation module and for providing the interface module of a road Ethernet interface；
Including network transformer, CAN communication interface, the power module powered for FPGA processor, temperature detecting module；
Described CAN communication isolation module, interface module, temperature detecting module are connected with FPGA processor respectively, and network transformer is connected with interface module, and CAN communication interface is connected with CAN communication isolation module；
Being parallel with voltage detection module on described network transformer, be in series with current detection module between CAN communication isolation module and FPGA processor, temperature detecting module is connected with FPGA processor.
FPGA processor, for providing Phototube Coupling for two-way serial port on FPGA processor, is played insulation blocking effect by described CAN communication isolation module.Described current detection module is for detecting the current conditions of CAN interface branch road, it is to avoid electric current damages CAN interface beyond working range.
The described voltage detection module being connected in parallel on network transformer is mainly for detection of the output voltage of transformator, it is to avoid after network transformer damages suddenly, voltage is not normal and the Ethernet interface that causes damages.
Signal enters and is encoded compression process in FPGA processor, and the data stream after encoded compression is respectively enterd in CAN communication isolation module and interface module by isa bus.CAN communication isolation module is realize the system that far-end ground loop disconnects, and allows interface allow to ensure reliable communicating under very big common-mode voltage variation.Data stream through CAN communication isolation module accesses CAN interface.The data of interface module output flow into and flow through the final access network based on ethernet interface of network transformer.
Embodiment two:
On the basis of embodiment one, the current detection module based on the Intelligent Communication Controllers of FPGA as Figure 1-4 that the present embodiment provides includes amperometric and the current vs's device being sequentially connected with it, current-mode digital signal converter.First pass through amperometric detection after CAN communication isolation module output electric current input electric cur-rent measure module contrasting through current vs's device and running current, be finally converted to numerical monitor through current-mode digital signal converter.Here current detection module adopts model to be M391753.
Voltage detection module includes voltage detector and connected voltage-contrast device, voltage-mode digital signal converter.Network transformer output voltage, through first passing through voltage detector detection, contrasts then through voltage-contrast device and running current, is finally converted to numerical monitor through voltage-mode digital signal converter.Here current detection module adopts model to be WQX-DJT9.
The signal demand that described interface module is transmitted out is through the isolation of network transformer, so that ethernet physical layer can adapt to interface module chip, is also possible to prevent the destruction that the phenomenons such as electrostatic charge thunder and lightning cause simultaneously.Here interface module adopts DM9008F chip, and this chip processing speed is fast and less costly.
Temperature detecting module includes temperature detector and connected mould digital signal converter.Due to FPGA processor operationally can heat production in a large number, therefore easily there is burning out the situation of circuit.The present invention adopts temperature detector that FPGA processor temperature is monitored in real time, and converts gained information to numerical monitor by mould digital signal converter.Here temperature detector adopts model to be DS18B20, and temperature detector volume low power consumption is low, temperature accuracy is high, capacity of resisting disturbance is strong for this.
Exemplified as above is only illustration to the present invention, is not intended that the restriction to protection scope of the present invention, every belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (5)
1. based on an Intelligent Communication Controllers of FPGA, including isa bus, it is characterised in that: FPGA processor that described Intelligent Communication Controllers includes being connected with isa bus, CAN communication isolation module and for providing the interface module of a road Ethernet interface；
Including network transformer, CAN communication interface, the power module powered for FPGA processor, temperature detecting module；
Described CAN communication isolation module, interface module, temperature detecting module are connected with FPGA processor respectively, and network transformer is connected with interface module, and CAN communication interface is connected with CAN communication isolation module；
Being parallel with voltage detection module on described network transformer, be in series with current detection module between CAN communication isolation module and CAN interface, temperature detecting module is connected with FPGA processor.
2. Intelligent Communication Controllers as claimed in claim 1, it is characterised in that: described current detection module includes amperometric and the current vs's device being sequentially connected with it, current-mode digital signal converter.
3. Intelligent Communication Controllers as claimed in claim 1, it is characterised in that: described voltage detection module includes voltage detector and connected voltage-contrast device, voltage-mode digital signal converter
4. Intelligent Communication Controllers as claimed in claim 2, it is characterised in that: described temperature detecting module includes temperature detector and connected mould digital signal converter.
5. Intelligent Communication Controllers as claimed in claim 1, it is characterised in that: described interface module adopts DM9008F chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410808915.5A CN105759749A (en) | 2014-12-20 | 2014-12-20 | FPGA-based intelligent communication controller |
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| CN201410808915.5A CN105759749A (en) | 2014-12-20 | 2014-12-20 | FPGA-based intelligent communication controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738932A (en) * | 2016-11-15 | 2017-05-31 | 吉林大学珠海学院 | A kind of compensable 3D printer control system of nozzle temperature |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738932A (en) * | 2016-11-15 | 2017-05-31 | 吉林大学珠海学院 | A kind of compensable 3D printer control system of nozzle temperature |
| CN106738932B (en) * | 2016-11-15 | 2019-05-17 | 吉林大学珠海学院 | A kind of compensable 3D printer control system of nozzle temperature |
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Application publication date: 20160713 |