CN104423393A - Remote liquid level monitoring system based on Ethernet - Google Patents
Remote liquid level monitoring system based on Ethernet Download PDFInfo
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- CN104423393A CN104423393A CN201310406371.5A CN201310406371A CN104423393A CN 104423393 A CN104423393 A CN 104423393A CN 201310406371 A CN201310406371 A CN 201310406371A CN 104423393 A CN104423393 A CN 104423393A
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- ethernet
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Abstract
The invention provides a remote liquid level monitoring system based on Ethernet. The remote liquid level monitoring system comprises a liquid level meter and a liquid level controller, and further comprises a microprocessor, a digital-analog converter, an analog-digital converter, an Ethernet controller, a network terminal and an operation system server, wherein the microprocessor is connected with the digital-analog converter, the analog-digital converter, the Ethernet controller and the operation system server; the digital-analog converter is further connected with the liquid level controller; the analog-digital converter is further connected with the liquid level meter; the network terminal is connected with the Ethernet controller. The remote liquid level monitoring system based on the Ethernet has the functions of detecting a liquid level in real time, analyzing and processing data, supporting a distributed type network framework, visually programming and the like and is high in safety, so that the good control effect is realized. The remote liquid level monitoring system is suitable for the requirements of remote liquid level detection and control on industrial equipment including a boiler, a reaction tower and the like.
Description
Technical field
The invention belongs to industrial control field, relate to a kind of Remote Fluid-level Monitoring System based on Ethernet.
Background technology
In industrial process control system, level object is a kind of very general object, is that system realizes the requisite link of its function to the Inspect and control of level object.In the past, the supervising device majority of liquid level uses the point-to-point control of chip microcontroller and display, and staff must arrive industry spot and operate these instruments, and function of the MCU is very limited, can only complete some relative shirtsleeve operations.
Along with the development of the network communications technology, Ethernet is increasingly extensive in the application of industrial control field, and the long distance control system based on Ethernet realizes the effective integration of remote monitoring, control and management.Use long distance control system to be monitored industrial processes by network, understand field data in time, carry out decision-making fast.
The gordian technique of Long-distance Control is the network insertion problem how solving industrial field device.At present, mainly use PC to carry out image data by PC port (as RS232, USB interface) or data collecting card and provide network interface simultaneously, this method utilizes powerful PC software support, easily realize network communicating function, but PC port resource is limited, acquisition card special cost is higher, is difficult to promote.
Summary of the invention
Limited at port resource for solving prior art, acquisition card special cost is higher, is difficult to the technological deficiency promoted, the invention provides a kind of Remote Fluid-level Monitoring System based on Ethernet.
Based on the Remote Fluid-level Monitoring System of Ethernet, comprise liquid level gauge and fluid level controller, also comprise microprocessor, digital to analog converter, analog to digital converter, ethernet controller, the network terminal and operating system server; Described microprocessor is connected with digital to analog converter, analog to digital converter, ethernet controller and operating system server; Described digital to analog converter is connecting fluid level controller also, and described analog to digital converter also connects liquid level gauge, and the described network terminal is connected with ethernet controller.
Concrete, the described network terminal is PC or smart mobile phone.
Concrete, described microprocessor is S3C44B0X.
Concrete, described ethernet controller is RTL8019AS.
Concrete, described operating system server is μ C/OS-II server.
Concrete, described digital to analog converter is AD0809.
Concrete, described analog to digital converter is AD7988.
Remote Fluid-level Monitoring System based on Ethernet of the present invention, can detect liquid level in real time and analyzing and processing data, security are high, support the function such as distributed network architecture, visual programming, reaches good control effects.Be suitable for the long-range level sensing of the commercial unit such as boiler, reaction tower and the requirement of control.
Accompanying drawing explanation
Fig. 1 illustrates the present invention's embodiment schematic diagram.
Embodiment
Below provide the present invention's embodiment.
Based on the Remote Fluid-level Monitoring System of Ethernet, comprise liquid level gauge and fluid level controller, also comprise microprocessor, digital to analog converter, analog to digital converter, ethernet controller, the network terminal and operating system server; Described microprocessor is connected with digital to analog converter, analog to digital converter, ethernet controller and operating system server; Described digital to analog converter is connecting fluid level controller also, and described analog to digital converter also connects liquid level gauge, and the described network terminal is connected with ethernet controller.
As Fig. 1 provides the present invention's embodiment, the S3C44B0X microprocessor chip of the preferred Samsung of microprocessor, adopt the CPU core of ARM company 16/32 ARM7TDMI risc architecture, dominant frequency is 66MHz, by expanding a series of universal peripheral parts, provide abundant peripheral functionality.Its storage system has 8 memory banks, each storage space having 32MB, is distributed by these 8 sheet choosings of nGCS0-7.In design proposal used herein, nGCS0 meets Flash chip AM29LV160DB, start address 0x00000000, and size is 2MB, nGCS6 meets SDRAM chip HY57V641620ET-7, and start address is 0x0c000000, and size is 8MB, nGCS3 meets RTL8019AS, and start address is 0x06000000.
RTL8019AS is the integrated FDX Ethernet controller of a height, and transmitting-receiving can reach the speed of 10Mbps simultaneously; Support 8,16 bit data bus, 8 interrupt request lines are available; Support the automatic detection of UTP, AUI and BNC; The SRAM of built-in 16K, for data buffering, the paging structure in units of 256 bits, can divide size and the position of the paging being used in transmitting-receiving voluntarily, generally front 12 pages for sending buffering, rear 52 pages for receiving buffering; Hardware carries transmitting-receiving CRC check, fifo logic queue etc., decreases the workload of host CPU network data.S3C44B0X mainly concentrates on the process to SRAM in the read-write of network interface card register and network interface card to the operation of RTL8019AS.
Embedded OS μ C/OS-II can run on various dissimilar microprocessor, its kernel is little, efficiency is high, and there is modularization and the portability of height, support multitask Real-Time Scheduling, can network enabled function, graphical interfaces etc. after expansion, adopt μ C/OS-II to be connected with microprocessor, make Develop Application System more simple, function is abundanter.
Above-describedly be only the preferred embodiments of the present invention; described embodiment is also not used to limit scope of patent protection of the present invention; therefore the equivalent structure that every utilization instructions of the present invention and accompanying drawing content are done changes, and in like manner all should be included in protection scope of the present invention.
Claims (7)
1. based on the Remote Fluid-level Monitoring System of Ethernet, comprise liquid level gauge and fluid level controller, it is characterized in that, also comprise microprocessor, digital to analog converter, analog to digital converter, ethernet controller, the network terminal and operating system server;
Described microprocessor is connected with digital to analog converter, analog to digital converter, ethernet controller and operating system server; Described digital to analog converter is connecting fluid level controller also, and described analog to digital converter also connects liquid level gauge, and the described network terminal is connected with ethernet controller.
2. as claimed in claim 1 based on a Remote Fluid-level Monitoring System for Ethernet, it is characterized in that, the described network terminal is PC or smart mobile phone.
3. as claimed in claim 1 based on a Remote Fluid-level Monitoring System for Ethernet, it is characterized in that, described microprocessor is S3C44B0X.
4. as claimed in claim 1 based on a Remote Fluid-level Monitoring System for Ethernet, it is characterized in that, described ethernet controller is RTL8019AS.
5. as claimed in claim 1 based on a Remote Fluid-level Monitoring System for Ethernet, it is characterized in that, described operating system server is μ C/OS-II server.
6. as claimed in claim 1 based on a Remote Fluid-level Monitoring System for Ethernet, it is characterized in that, described digital to analog converter is AD0809.
7. as claimed in claim 1 based on a Remote Fluid-level Monitoring System for Ethernet, it is characterized in that, described analog to digital converter is AD7988.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406371.5A CN104423393A (en) | 2013-09-10 | 2013-09-10 | Remote liquid level monitoring system based on Ethernet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406371.5A CN104423393A (en) | 2013-09-10 | 2013-09-10 | Remote liquid level monitoring system based on Ethernet |
Publications (1)
| Publication Number | Publication Date |
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| CN104423393A true CN104423393A (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310406371.5A Pending CN104423393A (en) | 2013-09-10 | 2013-09-10 | Remote liquid level monitoring system based on Ethernet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106020085A (en) * | 2016-07-06 | 2016-10-12 | 天津市鑫成仪表有限公司 | RS485 monitoring system based on electric tracer heating liquidometers |
| CN106020043A (en) * | 2016-07-06 | 2016-10-12 | 天津市鑫成仪表有限公司 | Remote wireless monitoring system based on electric tracer heating liquidometers |
| CN106154914A (en) * | 2016-07-13 | 2016-11-23 | 天津市鑫成仪表有限公司 | A kind of Multi-Switch point Floating Ball Liquid Level monitoring system based on CAN |
-
2013
- 2013-09-10 CN CN201310406371.5A patent/CN104423393A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106020085A (en) * | 2016-07-06 | 2016-10-12 | 天津市鑫成仪表有限公司 | RS485 monitoring system based on electric tracer heating liquidometers |
| CN106020043A (en) * | 2016-07-06 | 2016-10-12 | 天津市鑫成仪表有限公司 | Remote wireless monitoring system based on electric tracer heating liquidometers |
| CN106154914A (en) * | 2016-07-13 | 2016-11-23 | 天津市鑫成仪表有限公司 | A kind of Multi-Switch point Floating Ball Liquid Level monitoring system based on CAN |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |
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| WD01 | Invention patent application deemed withdrawn after publication |