CN102075211A - Wireless Ethernet transmission system for electrolysis unit and data exchange method thereof - Google Patents

Abstract

The invention belongs to the field of electrolysis units and particularly relates to a wireless Ethernet transmission system for an electrolysis unit and a data exchange method thereof. The system comprises master station wireless Ethernet transmission equipment, a man-machine interaction station, slave station wireless Ethernet transmission equipment and the electrolysis unit, wherein data transmission ends of the master station wireless Ethernet transmission equipment and the slave station wireless Ethernet transmission equipment are connected with the data transmission end of the man-machine interaction station respectively. The data exchange method can be implemented by the following steps that: (1) the electrolysis unit transmits data to a transmitter of the wireless Ethernet transmission system; (2) the transmitter transmits a radio signal to the outside and detects whether an interference signal which is close to the transmitting frequency of the transmitter exists or not; and (3) if the interference signal which is close to the transmitting frequency of the transmitter does not exist, the data is received by a receiver and is transmitted from the wireless Ethernet transmission system to a ground control chamber; and if the interference signal which is close to the transmitting frequency of the transmitter exists, the transmitter transmits at another frequency, the receiver receives at another frequency, and the data is transmitted from the wireless Ethernet transmission system to the ground control chamber. The system has a simple structure and runs stably and reliably.

Description

Electrolysis Unit Wireless Ethernet Transmission System and Data Exchange Method

technical field

The invention belongs to the field of electrolysis units, in particular to a wireless Ethernet transmission system of an electrolysis unit and a data exchange method thereof.

Background technique

The domestic aluminum industry is developing more and more rapidly, the application of electrolytic units is becoming more and more extensive, and the automation control equipment used on these equipment is also becoming more and more advanced. It will be a future development trend to transmit the data on the electrolysis unit to the ground computer for operation and maintenance personnel, which will also lead to a qualitative leap in the electronic control system of the electrolysis unit. How to effectively ensure the normal and stable operation of the electrolysis unit under harsh conditions such as strong magnetic field, high temperature, high dust, and HF gas has become a common concern in the industry.

Contents of the invention

The invention aims at overcoming harsh conditions such as strong magnetic field, high temperature, high dust, HF gas and the like of an aluminum electrolysis unit to provide a wireless Ethernet transmission system and a data exchange method for an electrolysis unit with simple structure, stable operation and reliability.

In order to achieve the above object, the present invention is achieved in this way: the wireless Ethernet transmission system of the electrolysis unit, which includes: a master station wireless Ethernet transmission device, a man-machine interaction station, a slave station wireless Ethernet transmission device and an electrolysis unit; The data transmission ends of the station wireless Ethernet transmission equipment and the slave station wireless Ethernet transmission equipment are respectively connected to the data transmission terminals of the human-computer interaction station; the master station wireless Ethernet transmission equipment and the slave station wireless Ethernet transmission equipment are connected via frequency hopping wireless Communication means to realize data exchange.

As a preferred solution, the electrolysis unit of the present invention includes N unit units; the slave station wireless Ethernet transmission device includes N wireless equipment units; wherein N is a natural number; the data transmission port of the unit unit is connected to the unit via a network cable The data transmission ports of the wireless equipment units are respectively connected in sequence.

A data exchange method for a wireless Ethernet transmission system of an electrolysis unit, which can be implemented sequentially according to the following steps: (1) The electrolysis unit sends data to the transmitter of the wireless Ethernet transmission system through the Ethernet protocol; (2) The transmitter continuously sends data to the wireless Ethernet transmission system Transmit wireless signals outside to transmit data, and at the same time, detect whether there is any interference signal with a frequency similar to its transmission frequency; (3) If there is no, the data is transmitted by the transmitter, received by the receiver, and the data is transmitted from The wireless Ethernet transmission system transmits to the ground control room for control and display; if there is, the transmitter changes frequency to transmit, the receiver changes frequency to receive, and sends the data from the wireless Ethernet transmission system to the ground control room through the Ethernet protocol control and display.

The invention organically combines the wireless Ethernet transmission equipment with the human-computer interaction station, realizes a qualitative leap in the electric control system of the electrolysis unit, completes the data exchange between the electrolysis unit and the ground human-computer interaction station, and effectively solves the problem of mobile The problem that the equipment cannot exchange data with the ground control room has greatly improved the technical content of the electrolysis unit's electronic control system, and also greatly improved the efficiency of operation and maintenance.

Compared with the prior art, the present invention has the following characteristics: a. Wireless transmission: send and receive data in a wireless manner, and the communication distance is far, which can reach more than ten kilometers.

b. Randomness of data transmission: data can be transmitted from wireless station A to wireless station B, or from wireless station B to wireless station A, and wireless station A can also transmit data to wireless station C through wireless station B.

c. Strong anti-interference ability: The wireless Ethernet transmission equipment adopts frequency hopping technology. When encountering interference signals, the wireless Ethernet transmission equipment can change the transmission frequency at any time according to the actual situation to achieve the effect of stable transmission.

d. Dust-proof and waterproof design: High dust-proof and waterproof grades make the invention stable in harsh environments such as strong magnetic fields, strong conductive dust, and HF gas.

e. Reasonable working temperature design: The wireless Ethernet transmission equipment located in the high temperature area can work in the environment of -40-+70°C for a long time, which further improves the stable operation coefficient of the present invention.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the expression of the following content.

Fig. 1 is the block diagram of circuit principle of the present invention.

Fig. 2 is a system structure diagram of the present invention.

Fig. 3 is a data exchange flow chart of the wireless Ethernet transmission system of the electrolysis unit of the present invention.

Detailed ways

As shown in the figure, the wireless Ethernet transmission system of the electrolysis unit includes: a master station wireless Ethernet transmission device, a human-computer interaction station, a slave station wireless Ethernet transmission device and an electrolysis unit; the master station wireless Ethernet transmission device and The data transmission end of the wireless Ethernet transmission device of the slave station is respectively connected to the data transmission end of the man-machine interaction station; the wireless Ethernet transmission device of the master station and the wireless Ethernet transmission device of the slave station realize data exchange through frequency hopping wireless communication. The electrolysis unit of the present invention includes N unit units; the slave station wireless Ethernet transmission device includes N wireless equipment units; wherein N is a natural number; the data transmission port of the unit unit communicates with the wireless equipment unit through a network cable The ports are respectively connected in sequence.

The data exchange method of the wireless Ethernet transmission system of the electrolysis unit of the present invention can be implemented sequentially according to the following steps: (1) the electrolysis unit sends data to the transmitter of the wireless Ethernet transmission system through the Ethernet protocol; Transmit wireless signals outside to transmit data, and at the same time, detect whether there are interference signals with similar transmission frequencies around; (3) If there is no, after the data is transmitted by the transmitter, it will be received by the receiver, and the data will be sent from the receiver through the Ethernet protocol. The wireless Ethernet transmission system transmits to the ground control room for control and display; if there is, the transmitter changes frequency to transmit, the receiver changes frequency to receive, and sends the data from the wireless Ethernet transmission system to the ground control room through the Ethernet protocol control and display.

The wireless Ethernet transmission system of the electrolysis unit of the present invention includes: a master station wireless Ethernet transmission device, a slave station wireless Ethernet transmission device, and a human-computer interaction station; the master station wireless Ethernet transmission device is a ground wireless Ethernet transmission device , to exchange data with the man-machine interaction station; the wireless Ethernet transmission device of the slave station is the wireless Ethernet transmission device of the electrolysis unit, which exchanges data with the electrolysis unit system, and the man-machine interaction station is a configuration device, providing intuitive , Visual data change, let the operation and maintenance personnel understand the operation status of each electrolysis unit.

The wireless Ethernet transmission system of the electrolysis unit can complete the sending of various data information on the electrolysis unit to the ground human-computer interaction station, and at the same time, it can also send the data information of the human-computer interaction station to each electrolysis unit. At the same time, the two units Data exchange can also be completed through the wireless Ethernet transmission equipment of the ground master station.

The invention can complete the data exchange between the man-machine interaction station and the PLC of the electrolysis unit, and realize the monitoring of the working status of each operating electrolysis unit on the ground;

The invention can also complete the data exchange between the ground computer and the PLC of the electrolysis unit, and realize the modification and download of the PLC program of each electrolysis unit on the ground.

The present invention can also complete the data exchange between the PLC of the electrolysis unit and the PLC, realize the linkage function between the two units, and complete the hoisting work of the upper part and the lower part of the electrolytic cell.

As shown in Figure 3, the PLC of the electric control system of the electrolysis unit sends data to the transmitter of the wireless Ethernet transmission system through the Ethernet protocol, and the transmitter continuously transmits wireless signals to the outside to transmit data. If there is no interference signal with similar frequency, the data will be received by the receiver after being transmitted by the transmitter, and the data will be transmitted from the wireless Ethernet transmission system to the ground control room for control and display through the Ethernet protocol; If the interference signal is similar to its transmission frequency, the transmitter will change the frequency to transmit, and the receiver will change the frequency to receive, and the data will be sent from the wireless Ethernet transmission system to the ground control room for control and display through the Ethernet protocol. Both the transmitter and the receiver here are reversible, that is to say, the transmitter also has the role of the receiver, and the receiver also has the role of the transmitter, and the data transmission is also bidirectional.

As shown in Figure 2, 1# unit system (2# unit system...) can transmit data to 1# wireless device (2# wireless device...), 1# wireless device (2# wireless device...) through the Ethernet port ...) The transmitted data can be transmitted to the 1# wireless device through the wireless Ethernet transmission system of the electrolysis unit, and the 1# wireless device transmits the transmitted data to the human-computer interaction station for data display. All the above data transmission paths are is reversible.

As shown in Figures 1 and 2, a wireless Ethernet transmission system suitable for electrolysis units, which includes: master station wireless Ethernet transmission equipment, slave station wireless Ethernet transmission equipment, human-computer interaction station; PLC of each electrolysis unit Reserve the Ethernet port, install the wireless Ethernet transmission device of the slave station next to the PLC, connect the PLC and the wireless Ethernet device of the slave station through a network cable, install the wireless Ethernet transmission device of the master station next to the human-computer interaction station on the ground, and install the wireless Ethernet transmission device of the master station. The interactive station is equipped with an Ethernet port, and the human-computer interactive station and the wireless Ethernet transmission equipment of the main station are connected through a network cable, so that the ground human-computer interactive station can exchange data with the PLC of the electrolysis unit.

The invention can complete the data exchange between the human-computer interaction station and the PLC of the electrolysis unit, and realize the monitoring of the working status of each operating electrolysis unit on the ground.

The invention can also complete the data exchange between the ground computer and the PLC of the electrolysis unit, and realize the modification and download of the PLC program of each electrolysis unit on the ground.

The present invention can also complete the data exchange between the PLC of the electrolysis unit and the PLC, realize the linkage function between the two units, and complete the hoisting work of the upper part and the lower part of the electrolytic cell.

Based on the current development trend of the electric control system of the electrolysis unit and combined with wireless technology, the inventor has developed the wireless Ethernet transmission system of the electrolysis unit of the present invention, which realizes remote monitoring of the electrolysis unit, remote program download, and the linkage of the two units to lift the electrolyzer, etc. .

In the design of the present invention, the high temperature problem of the electrolysis workshop is fully considered, and the wireless Ethernet transmission equipment working in the high temperature area can withstand the high temperature of +70°C.

In terms of design, the present invention also fully considers the interference problems such as strong magnetic field, strong dust, and HF gas in the electrolysis workshop, and adopts frequency hopping technology for wireless transmission to ensure the stability of the system.

Hardware working principle: 1. Wireless Ethernet transmission equipment of the main station: as shown in Figure 2, the wireless Ethernet transmission equipment of the main station is installed on the ground, which is the link between the human-computer interaction station and each electrolysis unit to exchange data, through wireless frequency hopping technology Exchange data with the wireless Ethernet device of the slave station, and exchange data with the human-computer interaction station through the network cable.

2. Wireless Ethernet transmission equipment of the slave station: as shown in Figure 2, the wireless Ethernet transmission equipment of the slave station is installed next to the PLC of the electrolysis unit, which is the link between the electrolysis unit and the human-computer interaction station to exchange data. Through wireless frequency hopping technology and The master station exchanges data with the wireless Ethernet device, and exchanges data with the PLC of the electrolysis unit through the network cable.

3. Human-computer interaction station: The human-computer interaction station is a tool for exchanging information between the wireless Ethernet transmission system of the electrolysis unit and the operation and maintenance personnel. Maintainers exchange information.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (3)

1. The wireless Ethernet transmission system of the electrolysis unit is characterized in that it comprises: a master station wireless Ethernet transmission device, a man-machine interaction station, a slave station wireless Ethernet transmission device and an electrolysis unit; the master station wireless Ethernet transmission device and the electrolysis unit The data transmission end of the wireless Ethernet transmission device of the slave station is respectively connected to the data transmission end of the man-machine interaction station; the wireless Ethernet transmission device of the master station and the wireless Ethernet transmission device of the slave station realize data exchange through frequency hopping wireless communication. 2. The electrolysis unit wireless Ethernet transmission system according to claim 1, wherein: the electrolysis unit includes N unit units; the slave station wireless Ethernet transmission device includes N wireless equipment units; wherein N is A natural number; the data transmission port of the unit unit is respectively connected to the data transmission port of the wireless device unit through a network cable. 3. A data exchange method of the electrolysis unit wireless ethernet transmission system as claimed in claim 1 or 2, is characterized in that, implements successively according to the following steps: (1) The electrolysis unit sends data to the transmitter of the wireless Ethernet transmission system through the Ethernet protocol; (2) The transmitter continuously transmits wireless signals to the outside to transmit data, and at the same time, detects whether there are interference signals with similar transmission frequencies around it; (3) If not, after the data is transmitted by the transmitter, it will be received by the receiver, and the data will be transmitted from the wireless Ethernet transmission system to the ground control room for control and display through the Ethernet protocol; if there is, the transmitter will be changed to The frequency is transmitted by the receiver, and the data is sent from the wireless Ethernet transmission system to the ground control room through the Ethernet protocol for control and display.

Images