Guide: with the continuous improvement of Internet of things wireless sensor technology, it is more and more widely used, mainly used in petrochemical, electric power, industrial manufacturing, medicine, agriculture, aquaculture, municipal and other fields, not only improving work efficiency, but also reducing production costs.
With the continuous improvement of Internet of things wireless sensor technology, more and more widely used, mainly used in petrochemical, electric power, industrial manufacturing, medicine, agriculture, aquaculture, municipal and other fields, not only improving the work efficiency, but also reducing the production cost. Here, the editor reviews ten typical application examples of wireless sensor technology in the Internet of things based on the actual needs of users.
1、 EMS energy data wireless monitoring
For a general factory of Midea Group, there are 7 branch factories (General Assembly No.1 Branch, General Assembly No.2 Branch, General Assembly No.3 branch, light commercial branch, injection molding branch, electronic branch and department assembly branch) for monitoring and information analysis.
1. Realize real-time data acquisition and monitoring of all line body field energy meters and various flow meters (such as compressed air flow, petroleum gas flow, oxygen flow, nitrogen flow, etc.) of each branch
2. Realize the calculation, statistics and analysis of the power consumption, compressed air consumption, oil consumption, nitrogen consumption and oxygen consumption of each line of each branch
3. Realize statistical report function, real-time data and status display function, history and real-time curve function, remote control function, management function and redundancy function
4. It is required that the system has good openness and can exchange data with other information systems
2、 Water level monitoring of underground pipe trench
In order to ensure the safe operation of the whole park in the later stage of Shanghai Disneyland, it is necessary to monitor and manage the water supply and drainage pipeline network scientifically and thoughtfully.
1. There are six points to monitor the water level of the underground pipe trench.
2. When the water level exceeds the standard, upload the signal to the computer or mobile phone.
3、 Wireless monitoring of pressure, flow and temperature of power plant pipe network
Wireless monitoring of the pressure, flow and temperature of the pipe network of Guangdong Luoding power plant mainly monitors the pressure, flow and temperature of the pipe network, as well as the valve opening and other parameters, and opens and closes the valve when necessary. The system is composed of monitoring center, communication network and monitoring terminal.
The data acquisition terminal of each pipe network monitoring point can monitor and collect the temperature, pressure, flow and other parameters. Meanwhile, it has the function of remote control, and can schedule and display the opening and closing of pipe network valves. The data is stored in the database for analysis and decision-making of the control center and relevant departments, and can be stored for at least two years to improve work efficiency.
4、 Intelligent environment monitoring of agricultural greenhouse
Requirements for intelligent environmental monitoring of agricultural greenhouse of Shenzhen Tsinghua Research Institute:
1、 4 greenhouses, each monitoring two air temperature and humidity, two soil temperature and humidity, one carbon dioxide concentration and one light intensity
2. Display in three places: touch screen (far away from the monitoring PC, wireless transmission is recommended); LED screen displays relevant monitoring data, about 10 meters away from the host
3. Monitoring PC installs upper computer software to display monitoring data interface
5、 Wireless monitoring of livestock and poultry breeding environment
Wireless real-time monitoring of the chicken farm environment in Weifang, Shandong Province, monitors the temperature and humidity, oxygen, ammonia, hydrogen sulfide, carbon dioxide concentration, illuminance, water consumption, electricity consumption and other data of each chicken house according to the breed and different growth stages of the chicken farm.
Real time collection of on-site sensor signals, remote monitoring of the operation of the chicken house, monitoring the background for data collection, analysis, early warning and alarm, data formation of historical database, historical curve and data reports.
6、 Real time monitoring of temperature, humidity and pressure difference in laboratory
Real time monitoring requirements of temperature, humidity and pressure difference in BGI laboratory:
1. Monitor the temperature, humidity and pressure difference of the laboratory environment in real time, and transmit the monitoring data to the monitoring center;
2. The temperature of the freezer inside the laboratory is monitored in real time, and the monitoring data is transmitted to the monitoring center by wireless way;
3. The field acquisition device and detection device adopt wireless data transmission, which is simple in wiring and convenient in installation;
4. Set the upper and lower limits of temperature and humidity audible and visual alarm, the monitoring software interface will display directly, without adding hardware alarm, and can independently indicate the temperature, temperature and humidity, pressure almost on the real screen, and send the alarm information to the designated person's hand machine through SMS cat;
5. Equipment output standard Modbus protocol and TCP / IP interface;
6. It can be seamlessly connected with the company's internal network, access the monitoring data through the web page, and remotely monitor the server data from the external network, and remotely monitor the monitoring parameters in the laboratory anytime and anywhere;
7. Historical data storage, report printing, data curve, etc.
7、 Inverter operation status monitoring
Monitoring requirements for operation status of frequency converter:
a. Through wireless transmission, monitor the operation status of frequency converter (with RS-485 interface) and display it on PC interface
b. Control the start and stop of frequency converter and timing the operation time
c. Check the input and output frequency of frequency converter; set the input frequency
d. Display the operation status indication of frequency converter
e. A PC can monitor the operation of all inverter equipment in the workshop
There are more than 100 frequency converter equipment in the customer workshop, and the operation status monitoring system of 5 frequency converters will be built in advance
8、 Wireless monitoring of water meter reading
Wireless monitoring requirements for water meter of Chiwan container terminal:
The system adopts the mature Modbus protocol to collect the real-time water consumption, transmit the data to the monitoring center through the wireless management device, trigger the color, sound and SMS alarm system after the background processing, and notify the administrator anytime, anywhere.
9、 Wireless monitoring of plant gas
Wireless TVOC gas monitoring requirements of Huawei factory:
1. The clean room is divided into upper and lower floors, each floor is 500 * 500m, with a height of 6m;
2. Each floor is equipped with 15 TVOC wireless gas sensors, with a total of 30 detection points;
3. It is uploaded to the general management device through wireless transmission, and then displayed on the upper computer, with the upper computer software.
10、 Wireless monitoring of material shortage in production line
Wireless monitoring of material shortage of Huawei electric welding line when material shortage occurs on site, the production personnel press the button on the panel of the field control box to send the information to the material call center through wireless mode. The corresponding indicator light on the host screen of the call center turns orange, and the computer plays a piece of music at the same time.
When the material is sent to the production line, press the button again, and the system can return to normal operation. The application software shall support OPC and can communicate with MES system. However, in addition to the above applications, the wireless sensor technology of Internet of things shall be used in warehouse, storage tank, collection, river dam water level, water tower liquid level, water and gas pipeline monitoring, etc. when MES system is required for corresponding development and cooperation.
