CN200944602Y

CN200944602Y - Ethernet application processor

Info

Publication number: CN200944602Y
Application number: CN 200620029328
Authority: CN
Inventors: 李冶; 林君; 吴忠杰; 陈琳; 张颖; 邱飞; 王然
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2006-09-12
Filing date: 2006-09-12
Publication date: 2007-09-05
Anticipated expiration: 2016-09-12

Abstract

The utility model discloses an Ethernet application processor which is applied to build a large distributed sensor network and particularly complies with the interface standard of a networked intelligent sensor based on IEEE1451.2. The Ethernet application processor comprises a network control module, a main control module and a power management module and adopts four transmission modes of C/S access mode, B/S access mode, compound mode of C/S and B/S, which can be selected flexibly so as to meet the requirements for various sensors application. The Ethernet application processor has the capabilities of non-linear calibration and sensitive parameter compensation on the information of the sensors and greatly improves the ''intelligence'' of the sensors. The Ethernet application processor realizes the functions of IEEE1451 intelligent transducer modules such as plug and play, automatic identification and data calibration, and can access to Ethernet, so as to realize Ethernet remote monitoring with the transmission speed up to 8Mbps.

Description

The Ethernet application processor

Technical field:

The utility model of running quickly relates to a kind of structure that is applied to large-scale distributed sensor network, especially meets the application processor of IEEE1451.2 networked smart sensor interface standard.

Background technology:

Along with the extensive use of networked smart sensor, problems such as interchangeability and interoperability become increasingly conspicuous between all big enterprises' transducer, have brought very big difficulty to transducer research and development, the system integration and maintenance.Therefore, the networked smart sensor interface problem has become the international question of sensor field.At this problem, international IEEE (IEEE) and American National Standard technological associations (NIST) have released IEEE1451 intelligence sensor interface standard jointly, become general international standard.This standard makes sensor design be independent of fieldbus, provides good solution for solving the sensor interface problem.At present, the IEEE1451 protocol suite comprises seven separate consensus standards of all-in-one-piece again altogether, and wherein IEEE1451.1, IEEE1451.2, IEEE1451.3 and IEEE1451.4 are approved by IEEE, among other standard is being formulated.The standard that the present invention relates to is the IEEE1451.2 intelligence sensor interface standard by the review of IEEE tissue in 1997, this standard is divided into network application processor (NCAP) and intelligent transducer module (STIM) two large divisions with networked smart sensor, release along with the IEEE1451 standard, the continuous development of networked smart sensor, market in urgent need meets the network application processor of IEEE1451 standard, realization is with the smooth access network based on ethernet network of IEEE1451.2 standard intelligent transducer module of different vendor, realize the plug and play of transducer, automatically identification, to realize Long-distance Control based on Ethernet, information is obtained, functions such as adjustment of data compensation, realize " intelligence " of transducer, solve the interface difficult problem of networked smart sensor.

Summary of the invention:

The purpose of this utility model is at the deficiencies in the prior art, and a kind of Ethernet application processor of standard is provided.

The purpose of this utility model realizes in the following manner:

The Ethernet application processor is to be connected with main control module 2 by the address date control bus by network control module 1, and power management module 3 connects and composes with network control module 1 and main control module 2 respectively by power line.

The purpose of this utility model can also realize in the following manner:

Network control module 1 is to be connected network filter 5 by network interface 4 with RX by TX, network filter 5 is connected with network controller 6 with TPOU by TPIN, network controller 6 is connected with configuration register 7 with BD7 by BD6, and network controller 6 connects main control module 2 by the pair cable line.

Main control module 2 is by R/W, IOSTRB, MSTRB, DS link address decoding 9 by microprocessor 8, by AO and DO connected storage 10 and data storage 11 and network controller 6, address decoding 9 is connected network controller 6, connected storage 10 and data storage 1 by RD with WR, microprocessor 8 connects serial expanded circuit 12 by the PO mouth, microprocessor 8 is by PI mouth connecting bus expanded circuit 14, and hot connecting and disconnecting flow control circuit 13 connects the TII intelligence interface through bus expanded circuit 14

Beneficial effect: realize the functions such as plug and play, identification automatically, the adjustment of data of IEEE1451 intelligent transducer module, and can the access network based on ethernet network, the remote measurement and control of realization Ethernet, transmission rate can reach 8Mbps.

Accompanying drawing and description of drawings

Fig. 1 is an Ethernet application processor structured flowchart

Fig. 2 is the structured flowchart of accompanying drawing 1 control module

Fig. 3 is the structured flowchart of accompanying drawing 1 main control module

1 network control module, 2 main control modules, 3 power management modules, 4 network interfaces, 5 network filters, 6 network controllers, 7 configuration registers, 8 microprocessors, 9 address decodings, 10 memories, 11 data storages, 12 serial expanded circuits, 13 hot connecting and disconnecting flow control circuits, 14 bus expanded circuits.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail:

The utility model is by being to be connected with main control module 2 by the address date control bus by network control module 1, and power management module 3 connects and composes with network control module 1 and main control module 2 respectively by power line.

Network control module 1 passes through pair cable line access network based on ethernet network, and power management module 3 is not network control module 1 and main control module 2 power supplies.

Main control module 2 is by R/W, IOSTRB, MSTRB, DS link address decoding 9 by microprocessor 8, by AO and DO connected storage 10 and data storage 11 and network controller 6, address decoding 9 is connected network controller 6, connected storage 10 and data storage 11 by RD with WR, microprocessor 8 connects serial expanded circuit 12 by the PO mouth, microprocessor 8 is by PI mouth connecting bus expanded circuit 14, and hot connecting and disconnecting flow control circuit 13 connects the TII intelligence interface through bus expanded circuit 14.

Network controller 6 by TPIN ±, TPOUT ± link to each other with network filter 5.Network filter 5 by TX ±, RX ± link to each other with network interface 4, by the network interface 4 realization network data transmission that links to each other with Ethernet.The information such as address realm of the physical address of configuration register 7 storage networking controllers, chip I/O bus.Network controller 6 links to each other with configuration register 7 by BD6, BD7.

Microprocessor 8 links to each other with data storage 11 with FLASH memory 10 by address bus A0-A15, data/address bus D0-D15, improves data transmission rate.Microprocessor 8 links to each other with address decoding 9 by control pin R/W, IOSTRB, MSTRB, DS and address wire A13-A15, produces decoding logic, I/O logic and read-write logic.Address decoding 9 links to each other with memory 10, data storage 11 and network controller 6 with the RD holding wire by WR, controls the read-write operation of each unit.Serial expanded circuit 12 directly links to each other with MAX3111 asynchronous serial transceiver by the MCBSP0 interface of microprocessor 8, constitute serial ports expansion, realized the serial communications capabilities of system, the serial situ configuration function of system is provided, hot connecting and disconnecting flow control circuit 13 connects the TII intelligence interfaces through bus expanded circuit 14 and realizes surge current control in the hot plug process, and TII bus expanded circuit 14 connects the TII intelligence interface by the I/O mouth that the MCBSP1 interface of microprocessor 8 cooperates HPI-8 to be configured to.

Power management module 3 is by providing stable 5V, 3.3V, 1.8V power supply for network control module 1 and main control module 2.

Operation principle of the present utility model is as follows:

Adopt Ethernet application processor of the present utility model can make up sensor network easily based on Ethernet, the network application processor can directly link to each other by TII autonomous intelligence interface with the intelligent transducer module of IEEE1451.2 standard, the intelligent transducer module of IEEE1451.2 standard can be buied from transmitter manufacturer, and TII autonomous intelligence interface is ten line intelligence interfaces of IEEE1451.2 international standard definition.After the intelligent transducer module is connected into the network application processor in the mode of hot plug, the network application processor can be discerned automatically to the intelligent transducer module, and it is configured, after identification, configuration, the network application processor just can be to the intelligent transducer normal running, has realized interoperability and interchangeability between each manufacturer's intelligent transducer module by the network application processor of this patent.The network application processor can directly be connected into Ethernet by HUB, to after the information configuration such as its IP address, gateway IP, subnet mask, being in interior monitor workstation of local area network (LAN) or long-range client can conduct interviews to the network application processor by network application processor node instrument.Access modes comprises following four kinds of patterns: the C/S access module, the B/S access module, C/S and B/S blended data access module and e-mail data access module, the C/S access module needs the corresponding application software support, the B/S access module only needs the browser support to get final product, IE browser for example, satisfy the application demand of " thin client ", the blended data access module of B/S and C/S has adopted the Java technology, can remedy the defective of B/S access module dynamic interaction ability, be implemented in the real-time dynamic monitoring of browser environment lower sensor data, the e-mail data access module can realize that the active of sensing data sends, for example, when sensor after treating measurement information, the mode of detection information with Email directly can be sent in the e-mail server of Surveillance center, and data are saved in the data in server storehouse, use for Surveillance center.Four kinds of transmission meanss can be selected flexibly, satisfy the demand of various sensor application.The network application processor possesses the gamma correction and the sensitive parameter compensation ability of sensor information, therefore, the network application processor can the transducer multi-parameter be proofreaied and correct and compensation with carrying out from the initial data of intelligent transducer module acquisition with from the initial data that Surveillance center obtains, improved the observing and controlling precision of intelligent transducer on the one hand, make Surveillance center obtain effective detection information on the other hand, need not to carry out extra data processing, improved " intelligence " of transducer greatly.

The IEEE1451 standard ethernet network application processor that the utility model provides is owing to adopted IEEE1451 intelligence sensor interface standard, can with the intelligent transducer module seamless link of IEEE1451.2 standard, for the structure of standard transducer network provides the equipment support.Since the network application processor adopting DSP technology, it has powerful digital signal processing capability, therefore, its inside is embedded with correction engine, has improved the intelligence of transducer.Owing to aspect network interface, adopted industry ethernet, therefore, had the higher data transfer rate, and can make up long-distance distribution formula TT﹠C system.Owing to aspect interface, adopted four kinds of data access patterns, make the user can select the software interface mode flexibly, satisfied the demand of different application.The present invention can be applied when the structure of large-scale distributed sensor network.

Claims

1, a kind of Ethernet application processor, comprise Ethernet, TII bus, it is characterized in that, be to be connected with main control module (2) by the address date control bus by network control module (1), power management module (3) connects and composes with network control module (1) and main control module (2) respectively by power line.

2, according to the described Ethernet application processor of claim 1, it is characterized in that, network control module (1) is to be connected network filter (5) by network interface (4) with RX by TX, network filter (5) is connected with network controller (6) with TPOU by TPIN, network controller (6) is connected with configuration register (7) with BD7 by BD6, and network controller (6) connects main control module (2) by the pair cable line.

3, according to the described Ethernet application processor of claim 1, it is characterized in that, main control module (2) is to pass through R/W by microprocessor (8), IOSTRB, MSTRB, DS link address decoding (9), by AO and DO connected storage (10) and data storage (11) and network controller (6), address decoding (9) is connected network controller (6) by RD with WR, connected storage (10) and data storage (11), microprocessor (8) connects serial expanded circuit (12) by the PO mouth, microprocessor (8) is by PI mouth connecting bus expanded circuit (14), and hot connecting and disconnecting flow control circuit (13) connects the TII intelligence interface through bus expanded circuit (14).