天然氣無人值守站遠(yuǎn)程監(jiān)控終端的設(shè)計與實現(xiàn)
[Abstract]:With the gradual improvement of the production and operation level of natural gas industry, the demand for automatic management and control is more and more urgent. More and more gas wells and stations adopt unattended operation methods, but the traditional monitoring equipment is expensive and huge in volume. The operation cost is high and the electricity consumption is large, so it is very unreasonable to install some well stations and small gas distribution stations in the late stage of exploitation. In this paper, a low cost, low power, simple installation and maintenance remote monitoring terminal is designed to realize remote monitoring of station yard data. In this paper, the requirements for unattended stations in the SCADA (Supervisory Control And data Acquisition) system in Southwest Oil and Gas Field are deeply analyzed. Combining with the actual demand of the project, the electronic technology and the single chip microcomputer control technology are applied to the GPRS network communication technology. A remote monitoring terminal scheme for unattended natural gas station is designed and implemented by solar power supply technology. LPC1768 is used as controller, MC52iR3 module is selected as GPRS communication module, and the interface of Aix DIDOD / RS485 / RS232 is integrated to collect and upload the data of temperature, pressure and flow on the spot, the software is based on the real-time operating system of UCOS, and the system functions are divided into modules. The system adopts low-power design to realize the demand of solar power supply: installing three-detector, collocation with industrial serial port camera to capture intrusion detection pictures, system operating parameters can be configured to realize self-adaptability and expansibility of monitoring terminal; At the same time, a set of diagnostic board is designed to realize remote diagnosis with monitoring terminal. The monitoring terminal of this paper has realized the design and test of software and hardware, and has been successfully applied to the unattended station of the medium LPG mine through the project acceptance. The actual operation results show that the remote monitoring terminal data collection and upload is reliable and stable, and the solar power supply can still work normally under the condition of continuous rain for 12 days, and the system operation achieves the expected design goal.
【學(xué)位授予單位】:西南交通大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TE938;TP277
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