Background
Hydraulic dam refers to hydraulic concrete lifting dam,which is a simple dam technology of water conservancy science and technology. It is widely used in agricultural irrigation,fishing,seawater retaining tide,urban river landscape and small hydropower stations etc.
In order to eliminate hidden dangers and fault information alarm,we introduced industrial IoT system into this filed. The following requirements are proposed for IoT systems in this situation:
1.The IoT system is connected with the hydraulic pump to read all the details,including gate switch,water level,lifting dam time,pump operation,system usage.
2.Be able to receive equipment alarm information in time,and view equipment alarm status remotely by administrator
3.Compare and analyze the processing efficiency and processing technology of the equipment,so that the engineers have knowledge to for the operation of the equipment;
4.To achieve energy saving and emission reduction,improve production efficiency through data management in the PC and mobile APP,large display.
5.Support 4G transmission
6.Device positioning function
7.Support plc program remote upload and download, online debugging;
System Structure
V-net IoT architecture has four layers: System control layer,data acquisition layer,Transport layer and application layer
(1)System control layer
The system control layer uses Wecon plc and modules,PLC collects pressure data,flowmeter,other real-time and accumulated data through RS485 or analog module. Motor and other driving overall system operation and feedback are under control by PLC ladder.
(2) Data acquisition layer
The data acquisition obtains all kinds of information of the equipment layer over Ethernet port or serial port in V-BOX. V-BOX obtains some data of the equipment for monitoring and data analysis,such as pressure,pool water level,system usage,etc.
(2)Transport layer
The transport layer consists of a variety of networks,including the Internet,radio and television networks,private networks,VPN,wireless mobile communications and cloud computing platforms, which are responsible for delivering and processing information obtained by the perceptual layer.
V-box is intelligent data acquisition tool specifically designed for IoT system applications,which can access the common plc in the market. The data go to cloud server through Ethernet,4G network. Local data storage is enabled when Internet disconnected,then resume data transmission when Internet connected,which ensure the integrity of the data.
(3) Application layer
V-box connects with SCADA through OPC tool,all functions are running in the cloud,user can flexibly configure real-time data, trend charts,reports,alarms,mobile apps etc. Skilled programmer is not required. The data of each node(Gate state,pool water level,etc) is collected to realize the dynamic display of the information of the entire test point. Automatically send alarm message via email or WeChat.
Big screen Display
show the air compressor equipment statistics based on its location in the map,such as the number of operating equipment and downtime equipment,equipment failure rate,statistical analysis reports and so on.
The real-time state and various parameters of
device are shown on the display.
All alarm devices are displayed on the map,and user can click to view all the information of the device.
Advantages
1. Support main PLC brand and a variety of Internet access methods;
2. Data monitoring and device management functions are available in PC,mobile APP,web page;
3. Support multi-user solutions,which can realize equipment management personnel,field service personnel,terminal customers and other people with different limits to access and monitor different equipment;
4. The data is transmitted to the cloud data server remotely,and the data can also be stored locally,with the characteristics of remote query and resume transmission,to ensure the data integrity of the system.
5. Remote program uploading and downloading of remote PLC program,online debugging program,saving a lot of manpower, financial resources,and greatly improving operation and maintenance efficiency.
