1、 Project Background

As a provincial-level unit, the Guangdong Provincial Center for Disease Control and Prevention is responsible for all research related to disease control and prevention within Guangdong Province. Responsible for the prevention and control of infectious diseases and chronic non communicable diseases, health supervision, monitoring and inspection of related products, hygiene evaluation, functional testing and evaluation

In the relevant scientific research process, as an important part of experimental equipment, there are some special bead gases. According to different gas properties, it is divided into flammable and explosive gases and toxic gases. There are certain safety hazards during use.

Therefore, it is necessary to install and equip relevant gas detection instruments.

2、 Project requirements

Distribution map of hazardous chemical storage workshops at the Center for Disease Control and Prevention

3、 On site inspection

4、 Gas parameter table

5、 Outline of the plan

1. Adopt wireless gas detection to detect and transmit data in real-time.

2. Adopt high-precision gas detection sensors.

3. Connect the detection data to the final software platform.

6、 Solution diagram

7、 Schematic explanation

High precision intelligent sensor module, installed and fixed on the testing site. Determine the installation location based on the vapor density of various gases.

The data detected by the gas intelligent sensor module is processed by the intelligent environment device and wirelessly sent to the intelligent gateway.

After receiving and processing the data, the intelligent gateway can send the data to the control box installed at the detection site. The control box displays the gas in the detection site in real time, and automatically triggers sound and light alarms when the gas exceeds the standard. In addition, by controlling the box and connecting the fan, the fan will automatically turn on/off when the gas exceeds the standard.

The intelligent gateway device has a function similar to a transfer station. After data processing, it can be sent to the internal server of the disease control center through the internal LAN. After installing dedicated software, the server can display gas detection data in real time, and can also export, print data, historical data, etc.

8、 Intelligent environment measurement and control device

1.490MHz wireless data acquisition terminal, with the ability to increase the number of inputs and outputs as needed.

2. Multiple input methods and types are available, as well as multiple wireless communication methods.

3. AI comes with power distribution and isolation, without the need for additional signal isolators. More convenient and flexible to use. The AI input uses 16 bit A/D conversion components with a conversion accuracy of 0.01% F.S.

4. Use a smartphone to configure system operating parameters and read device collected I/O values.

5. It can control linkage devices such as sound and light alarms.

6. Power supply: DC 24V.

9、 Intelligent gateway

1. Support multiple communication methods.

2. Supports multiple communication protocols and can communicate with various software systems

3. Power supply: 5V+TTL serial port and 0-5V voltage dual output.

4. Used in conjunction with environmental monitoring devices and supports hot plugging.

10、 Intelligent gas sensor module

1. Adopting foreign brand gas sensor chips.

2. Comply with national explosion-proof standards.

3. Power supply: 5V+TTL serial port and 0-5V voltage dual output.

4. Used in conjunction with environmental monitoring devices and supports hot plugging.

11、 Sound and light alarm

Control the alarm through a switch signal, and automatically sound an alarm when the gas exceeds the standard

12、 On site control box

1. Plate thickness: ≥ 1.0mm.

2. Protection level: IP66 or above.

3. Impact resistance level: IK10.

4. Including circuit breakers and wiring terminals.

13、 Monitoring software

1. Read data from the intelligent gateway, display and publish real-time gas concentration at each monitoring point, and automatically push notifications and alarm information; Establish a historical database, conduct data statistics and analysis, generate various reports, curves, graphics, and technical indicators.

2. PC and mobile terminal access permissions can be set, and multiple clients can log in simultaneously to query and browse relevant production data and device operation information

14、 Monitoring interface

15、 On site filming