An Intelligent Control System of Variable Frequency and Constant Pressure Water Supply Based on the Internet of Things
An intelligent control system, frequency conversion and constant pressure technology, applied in water supply pipeline systems, pump control, water supply devices, etc., to reduce labor intensity, facilitate offline monitoring, and solve poor accuracy and stability.
Active Publication Date: 2022-06-21
SHENYANG SHUNYI TECH
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the deficiencies of the existing water supply system and provide an intelligent control system for variable frequency constant pressure water supply based on the Internet of Things, which can realize constant pressure control of the water supply system of high-rise buildings and remote monitoring of each unit of the water supply system. Feedback the operating status of each unit, learn the fault information as soon as possible, and ensure that the water pressure and flow of the residential water are kept within the optimal range in real time, and there will be no phenomenon of damage to equipment such as excessive water pressure or low water pressure and empty pumping
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[0022] The specific embodiments of the present invention will be described in detail below with reference to the technical solutions and the accompanying drawings.
[0023] (1) Enter the touch screen man-machine interface of the Internet of Things remote monitoring terminal through the administrator's account and password, enter the parameter setting interface, and run the water supply system after setting the relevant parameters;
[0024] (2) Set the GPRS modem to be in the data sending state, and receive the safety data information from the PLC control equipment through the RS232 serial port.
[0025] (3) After the data is unpacked by the communication processing program, the useful data is filtered out, and then encapsulated into packets, which are sent to the GPRS network through the TCP / IP protocol stack on the modem.
[0026] (4) The Internet of Things remote monitoring terminal connected to the network can share the safety data information of the constant pressure water...
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An intelligent control system of frequency conversion and constant pressure water supply based on the Internet of Things, the remote monitoring terminal of the Internet of Things and the GPRS modem of the remote network communication connection device are connected through the GPRS network and the Internet communication; the GPRS modem of the remote network communication connection device is controlled by the PLC through the RS232 serial port The device is connected, and the SIM card is inserted into the SIM slot of the GPRS modem. The other end of the PLC control equipment is externally connected to a frequency converter, a liquid level sensor, a pressure transmitter, an electric contact pressure gauge, a surge tank, and an electric butterfly valve. The frequency converter is powered by the main circuit, connects the pump group and regulates its speed. The present invention adopts the remote control technology based on the Internet of Things, is not restricted by region, can gather the safety information of each unit of the system, and monitor them in a unified manner, which is convenient for off-line monitoring. The control method of frequency conversion speed regulation and voltage stabilization system is adopted to realize the real-time optimal speed regulation of the water pump unit, making the system more energy-saving and safe.
Description
technical field [0001] The invention belongs to the field of constant pressure water supply, and relates to an intelligent control system for variable frequency constant pressure water supply based on the Internet of Things. Background technique [0002] Under the background of shortage of water resources and electric power, the automation degree of water supply technology in high-rise buildings has been relatively low for a long time, which is mainly manifested in energy waste and equipment damage. In the traditional water supply method of constant speed pump and pressure tank, the on and off of the pump is controlled by monitoring the pressure in the tank. The air pressure tank method relies on the compressed air in the pressure tank to deliver water. When the air pressure tank is equipped with a water pump, the water pump works under the conditions of rated speed and rated flow. When the water demand of the system drops, the water supply pressure exceeds the pressure req...
Claims
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IPC IPC(8): E03B7/07E03B11/16E03B11/06F04B49/06
CPCF04B49/06E03B7/07E03B7/075E03B11/06
Inventor 李英顺何青陆涛王德彪郝天宇邵桢敏
Owner SHENYANG SHUNYI TECH