Embedded and networked remote input and output system

An input and output system and embedded technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inconvenient wiring of dedicated networks, high requirements for development capabilities of developers, and high costs

Inactive Publication Date: 2006-10-18
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: a. Need to rely on PC as the gateway for protocol conversion. In the case of scattered single-chip systems, dedicated network wiring is extremely inconvenient; b. Need to install special protocol conversion software on the PC, which is usually provided by a dedicated first Provided by third-party software vendors, the cost is relatively high
However, this solution has the following disadvantages: it is necessary to purchase or select free RTOS development software, which requires high development capabilities of developers
Disadvantages: less peripheral resources, not a preemptive real-time operating system

Method used

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  • Embedded and networked remote input and output system
  • Embedded and networked remote input and output system
  • Embedded and networked remote input and output system

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Embodiment Construction

[0100] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0101] Such as figure 1 Shown, the present invention includes NETWEB module and I / O module, diagram 2-1 It is the principle block diagram of the NETWEB module. The first single-chip CPU1 in the NETWEB module runs the ThreadX real-time operating system kernel, and each program function module in the program memory FLASH is uniformly scheduled and operated by the operating system according to its priority. The hardware composition of NETWEB is as follows: Adopt the first one-chip computer CPU1 of NET+50 model in the ARM series provided by Netsilicon Company, realize the network function. AM29DL323DB-90EI 4M 32-bit program memory FLASH, 48LC2M32B2-7 8M16-bit dynamic data memory SDRAM, AT28LV64B 32K 8-bit parallel non-volatile data memory NVRAM, physical layer PHY with MII interface (driver chip LXT971ALE) as Ethernet interface, PCF8563 I 2 The clock CLOCK of...

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Abstract

The invention discloses an embedded networked remote input and output system, which is a distributed input and output system with an Ethernet interface, mainly used in the field of industrial automation control, and consists of a NETWEB module, an I / O module and a control program module. The NETWEB module is responsible for network transmission, network monitoring, collecting and processing field data through the RS-485 interface, and controlling the I / O module; the I / O module completes field signal collection and controls field equipment; the control program module stores in the program memory in the NETWEB module. Users can form a large or small remote monitoring / monitoring system from a few points to hundreds of points according to their needs. The system is a distributed I / O system, which can realize monitoring and control functions by relying on a WEB browser. Its real-time performance, network performance and reliability performance are unmatched by other systems.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to an embedded networked remote input and output system. The system realizes Internet network communication through a 32-bit single-chip microcomputer, and realizes remote connection with a computer on a remote network; connects with an on-site I / O module through an RS-485 interface to complete equipment monitoring, monitoring, diagnosis and maintenance. Computer network technology ultimately enables equipment maintenance and troubleshooting. Background technique [0002] With the increasing popularity of Internet applications, the degree of information sharing continues to increase. Traditional Internet applications center on PCs, and today's Internet applications will turn to center on embedded devices. For small embedded devices centered on single-chip application systems, how to use convenient Internet resources to share the information of embedded devices on the Internet has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F15/17G06F13/14G06F17/00
Inventor 于海斌王宏张彦武林跃杨铁王兴旭石刚李正
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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