Anwendungsbereich und Anwendungsszenarien des Fernmess- und -steuerterminals RTU

Nowadays, RTU is used more and more widely in our lives, and its characteristics are also very popular among users. It has the following characteristics: long communication distance; can be used in various industrial sites with harsh environments; modular structure Designed for easy expansion; widely used in water conservancy, electric power dispatching, municipal dispatching and other industries with remote signaling, telemetry, and remote control fields.

RTU device

RTU, also known as remote measurement and control terminal, is mainly used for monitoring, control and data collection applications, with telemetry, remote signaling, remote adjustment and remote control functions. This product can be used for remote monitoring and remote control. It integrates data collection, control, and transmission functions. It adopts a low-power design and is suitable for industrial and solar-powered field sites. It can be widely used in hydrology, water conservancy, electricity, and petroleum. , geology, environmental protection and other industries.

Compared with the commonly used programmable controller PLC, RTU usually has excellent communication capabilities and larger storage capacity, is suitable for harsher temperature and humidity environments, and provides more computing functions. RTU products are widely used in SCADA systems in oil and gas, water conservancy, electric power dispatching, municipal dispatching and other industries.

Application scenarios

In addition to a large number of applications in traditional industrial production processes, such as in power plants, steel plants, chemical plants and other fields, in situations where measurement and control points are particularly dispersed, remote measurement and control terminals RTU are widely used in the following industries; urban water supply automation control System; urban wastewater treatment system; urban gas pipeline network comprehensive dispatch system, natural gas and oil industry automation system; electric power remote data disease control system; heating network pipeline automation control; atmospheric water quality and other environmental monitoring; water regime and hydrology forecasting system; lighthouse beacon , river shipping, ports, and mine dispatching systems.

Applications

The sewage remote monitoring system of Kunming Municipal Environmental Protection Bureau consists of a control center and remote measurement and control terminals scattered at hundreds of monitoring points in Kunming city. The remote measurement and control terminals use GPRS RTU. The remote measurement and control terminal regularly transmits the data of the monitoring point (including the discharged sewage flow value, sewage treatment equipment operating time and other data) to the control center through the operator’s GPRS network, enters it into the SQLServer database, and compares the entered discharged sewage flow value, sewage treatment equipment Running time is accumulated in real time. The accumulated data of the day will be reported to the data center at a fixed time every night. In addition, the control center monitoring personnel can check the real-time operation data of the monitoring points scattered in Kunming at any time and understand the actual operation status of each monitoring point, such as whether the sewage treatment device is running, the actual amount of sewage discharged, and other data.

The Sangtamu operating area of ​​Tarim Oilfield in Xinjiang is an operating area covering hundreds of square kilometers. It is located on the edge of the Taklimakan Desert and has a very harsh natural environment. There are 80 oil wells distributed throughout the region. The oil wells are usually unattended, and the measurement data collection of the oil wells can only rely on manual inspections. However, due to the vast territory and poor natural conditions, an inspection often takes more than half a day to complete, and equipment failures cannot be discovered in time. Therefore, the operation area is determined to improve the oil field metering system involving 5 metering stations and 2 valve group stations. After renovation, the data acquisition and control parts adopt PLC system, and then the equipment operating status information is transmitted to the central station through RTU. After this system was applied in the Tarim Oilfield, it has been running stably. The central station can poll 7 RTU stations in just a few minutes (the longest distance between the central station and the RTU station is 13 kilometers). All data collection is accurate and avoids human error. Errors in collected data are eliminated, and measurement automation is truly realized.