CN211427133U

CN211427133U - Wireless monitoring control system of mill

Info

Publication number: CN211427133U
Application number: CN201922166813.9U
Authority: CN
Inventors: 薛晴; 杜欣慧; 王泽�
Original assignee: Taiyuan University of Technology
Current assignee: Taiyuan University of Technology
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-09-04
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a wireless monitor control system of mill. The wireless electric quantity sensor monitors in real time and wirelessly transmits the electric parameters to the control center; the control center processes the parameters and sends a control command to the PLC; and the PLC receives the command and controls the switching of the standby power supply. And simultaneously, a visual operation interface of a PC end and a mobile phone end is designed. And by using the wireless electric quantity sensor, real-time online data monitoring can be realized. The PLC provided with the communication module is used for realizing medium-short distance wireless control. The photovoltaic power generation system is used as a standby power supply and a new energy power supply which tends to be mature, so that the energy can be saved while the power supply function is realized. The utility model discloses select for use components and parts all to be wireless hardware, realize the wireless information transmission in the mill, area is little and save the wiring cost. Has higher practical and popularization value.

Description

Wireless monitoring control system of mill

Technical Field

The utility model belongs to the technical field of electric power monitoring control, specifically be applied to a wireless monitoring control system of mill in the mill.

Background

According to the power utilization policy, China executes two power generation prices for large industrial power utilization with the transformer capacity of 315KVA or more. The essence of the method is that the electricity price is divided into a basic electricity price and an electricity consumption electricity price, wherein the basic electricity price is based on the transformer capacity or the maximum demand (namely the maximum value of the average load every 15 minutes in a month) of an industrial enterprise as the basis for calculating the electricity price, a power supply department contracts with an electricity utilization department to determine the limit, and the electricity is collected fixedly every month without transferring the actual electricity consumption quantity; the electricity price is calculated according to the actual electricity consumption degree of the electricity department. When large industrial users sign and purchase power with a power grid every year, the larger the maximum demand, the more the basic electricity price is charged. The practical meaning of the utility model is that increase stand-by power supply in the mill, reduce the electric wire netting side power consumption of large industry user, make the actual maximum demand of electric wire netting side not exceed the value when the contract is signed (exceed then need pay the fine) to calculate the optimal electricity purchase scheme, save the charges of electricity expenditure of mill.

The wireless sensor monitoring network is one of important contents of intelligent factory environment data monitoring system research and is a key technology forming a sensing layer of the Internet of things. The wireless sensor network brings a brand-new information acquisition technology, analysis technology, processing technology and transmission mode, is an important medium for connecting a virtual network and the real world, extends the information network to an object network, acquires and senses environmental data in real time, replaces manual collection, and is considered as one of ten key technologies for changing the world in the century. In recent years, the application of wireless sensor networks arranged in plants, workshops, warehouses and buildings for completing environmental data monitoring and early warning by taking the concept of the internet of things as a reference is gradually developed, the application penetration of the internet of things is expanded, and the rapid development of the internet of things is promoted. The utility model discloses a wireless sensor is wireless electric quantity sensor.

The PLC is a novel universal automatic control device, integrates the traditional relay control, computer and communication technologies into a whole, and has the advantages of strong control function, high reliability, flexible and convenient use, easy expansion and the like. The utility model discloses install communication module on PLC, make it realize the wireless control function.

Disclosure of Invention

The utility model discloses a main objective is through the research design to wireless sensor and PLC a whole set of mill's monitor control system based on wireless electric quantity sensor and PLC wireless control. The system can sense the power consumption through the wireless electric quantity sensor connected to the electric equipment, and the PLC controls the switching of the standby power supply through analyzing data, so that the electricity price expenditure of industrial users is saved, and the power internet of things based on the wireless electric quantity sensor network is established.

The utility model discloses an adopt following technical scheme to realize: the utility model provides a wireless monitoring control system of mill, includes wireless electric quantity sensor, the PLC that has wireless communication module, control center and stand-by power supply, wireless electric quantity sensor installs in the consumer side, wireless electric quantity sensor and control center wireless connection, control center and PLC wireless connection, stand-by power supply passes through on stand-by switch circuit inserts the consumer main power supply line, writes into in the control center with the biggest required quantity threshold value of consumer and comparison program. The wireless electric quantity sensor monitors in real time and wirelessly transmits the electric parameters to the control center; the control center processes the parameters and sends a control command to the PLC; and if the power consumption monitored by the wireless power sensor is close to the maximum demand threshold value, the PLC receives a command and controls the switching of the standby power supply, namely the power grid quits power supply, and the standby power supply supplies power to the electric equipment. The PLC module uses wireless PLC, and it optimizes to remote measurement and control on the basis of traditional PLC characteristics and performance: besides the functions of traditional PLC such as input acquisition, relay control, timer and serial communication, the hardware also has a wireless communication function. The utility model discloses let the actual maximum demand of electric wire netting side be no longer than the value that the contract was signed for, save the charges of electricity expenditure of mill.

Preferably, the standby power supply selects a photovoltaic power generation system, so that the speed advantage is obvious, the system can be automatically switched to the photovoltaic power generation system, then the system can directly use the electric energy stored in the storage battery as power supply, the interval time is very short, and the power supply on the occasions can not be interrupted. In addition, the photovoltaic power generation system is used as a new energy power supply which tends to be mature, and the requirement of the society at the present stage on energy conservation can be met.

Preferably, the wireless electric quantity sensor is composed of an electromagnetic isolation acquisition unit, an electric energy conversion unit, an MCU unit, a wireless transmission unit, a configuration unit and a self-powered power supply conversion unit. The wireless electric quantity sensor is based on the ZigBee technology, and is a product of an electric parameter acquisition module which integrates the electromagnetic isolation principle, data acquisition, wireless communication and other technologies. The method is mainly suitable for the fields of automatic control and remote control, and realizes real-time online data monitoring.

Preferably, the control center is divided into a software layer and a hardware layer, the software layer comprises a TinyOS system, a journey software and a WinCC software which are installed in an operating system of the control center, a maximum power demand threshold and a comparison program are arranged in the journey software, the hardware layer comprises a data receiving module and a wireless data terminal, the data receiving module is a data receiving end of the wireless power sensor, data collected by the wireless power sensor is sent to the TinyOS system through the data receiving module to read sensing data, after the data is processed by the journey software, a control instruction is sent to the PLC through the wireless data terminal, and finally a visual operating interface is designed by using the WinCC software. And mobile phone APP can be developed and visualized at the mobile phone end.

Compared with the prior art, the utility model following beneficial effect has:

1. the actual maximum demand of the power grid side does not exceed the value signed by the contract, and the electricity expense of a factory is saved.

2. The utility model discloses a components and parts all are wireless hardware, realize the wireless information transmission in the mill, and area is little and save the wiring cost.

3. The utility model discloses the monitoring element uses wireless electric quantity sensor, uses and can establish the electric power thing networking when reaching the scale.

4. The utility model discloses stand-by power supply module uses photovoltaic power generation system, as the new forms of energy power that tends to ripe, can reach energy-conserving purpose when realizing the power supply function.

Drawings

Fig. 1 shows a schematic structural diagram of the present invention.

Fig. 2 shows an enlarged view of the control center in fig. 1.

Detailed Description

The following describes in detail specific embodiments of the present invention with reference to the accompanying drawings.

The utility model provides a wireless monitoring control system of mill, includes reserve switch circuit, wireless electric quantity sensor, PLC, control center and photovoltaic power generation system, photovoltaic power generation system passes through reserve switch circuit and inserts on the consumer main power supply line. And the PLC controls the on-off of the relays on the standby switch circuit and the main switch circuit of the power grid.

The system is specifically arranged as shown in figure 1, and is monitored in real time by a wireless electric quantity sensor and wirelessly transmits electric parameters to a control center; the control center processes the parameters and sends a control command to the PLC; and the PLC receives the command and controls the switching of the standby power supply.

As shown in fig. 2, the control center is divided into a software layer and a hardware layer, the software layer receives and processes data and provides a visual interface, and the hardware layer includes a data receiving module and a wireless data terminal to wirelessly receive data and wirelessly transmit control commands. The data receiving module is a data receiving end of the wireless electric quantity sensor and is connected with the PC end through a serial port, and data collected by the wireless electric quantity sensor is sent to the TinyOS system through the data receiving module so as to read sensing data. After data processing by the routing software (TIA-target), a control instruction is sent to the PLC by the wireless data terminal DTD434M (programming of the PLC is performed via routing). And finally, designing a visual operation interface by using WinCC software.

And by using the wireless electric quantity sensor, real-time online data monitoring can be realized. The PLC provided with the communication module is used for realizing medium-short distance wireless control. The photovoltaic power generation system is used as a standby power supply and a new energy power supply which tends to be mature, so that the purpose of energy conservation can be achieved while the power supply function is realized. The utility model discloses select for use components and parts all to be wireless hardware, realize the wireless information transmission in the mill, area is little and save the wiring cost.

The above is only a specific embodiment of the present invention, but not limited to this, and any factory can be used to realize wireless detection of electric quantity and wireless control of switch; the device can also be used in similar places in other related fields for monitoring and controlling. Any solution to the same technical problems or achieving the same technical effects as the present invention, such as simple changes, equivalent replacements, or modifications, are within the scope of the present invention.

Claims

1. The utility model provides a wireless monitoring control system of mill, its characterized in that includes wireless electric quantity sensor, the PLC that has wireless communication module, write in the control center and the stand-by power supply that have the maximum demand threshold value of power consumption and comparison program, wireless electric quantity sensor installs in the consumer side, wireless electric quantity sensor and control center wireless connection, control center and PLC wireless connection, stand-by power supply passes through the access of stand-by switch circuit to consumer main power supply circuit way.

2. The plant wireless monitoring and control system of claim 1, wherein the backup power source is a photovoltaic power generation system.

3. The factory wireless monitoring control system according to claim 1 or 2, wherein the wireless electric quantity sensor comprises an electromagnetic isolation acquisition unit, an electric energy conversion unit, an MCU unit, a wireless transmission unit, a configuration unit and a self-powered power supply conversion unit.