#cleanroom monitoring

[bliiot-jerry]

Cleanroom Monitoring Solution Based on ARM Edge Controller

Case Details

Cleanrooms, as highly controlled environments, are widely used in industries such as semiconductor manufacturing, biopharmaceuticals, and medical device production, where stringent requirements for environmental cleanliness and safety are paramount. In particular, real-time, precise data collection and rapid response mechanisms are critical for leak detection and access control in cleanrooms. Traditional centralized monitoring systems often suffer from data transmission delays and insufficient device integration, making them inadequate for meeting the demands of modern cleanrooms for efficient and intelligent management.

With the advancement of Industrial Internet of Things (IIoT) and edge computing technologies, ARM-based edge controllers have emerged as key devices for enhancing environmental safety and intelligent management in cleanrooms.

Solution Architecture

Core Device: ARMxy Edge Computing Controller

The ARMxy series edge controller is equipped with a high-performance ARM processor and versatile interfaces (e.g., Ethernet, RS485/RS232, DI/DO/AIO), supporting multiple industrial communication protocols to accommodate diverse field devices. This controller not only enables local data acquisition and real-time control but also seamlessly integrates with central control systems via network connectivity for remote monitoring and management.

Key Sensor Modules

Liquid Leak Sensors: Real-time detection of liquid leaks on the cleanroom floor or at critical equipment, ensuring environmental safety.

Temperature and Humidity Sensor Modules: Continuous monitoring of cleanroom environmental parameters to ensure compliance with process standards.

Access Control Card Readers: Enable secure and organized personnel access management for cleanroom entry and exit.

Communication Protocols and Data Transmission

Field devices communicate with the ARM edge controller using standard protocols such as Modbus RTU (serial) or Modbus TCP (Ethernet). The controller preprocesses data, performs alarm logic judgments, and transmits the processed data to upper-level central control systems (e.g., SCADA, DCS, or cloud platforms) via the network.

Specific Functions and Advantages

Real-Time Environmental Data Acquisition and Monitoring The ARM edge controller periodically collects data from liquid leak sensors and environmental sensors, displaying real-time environmental conditions. Upon detecting anomalies (e.g., excessive leaks or deviations in temperature/humidity), it immediately triggers local alarms (e.g., audible-visual alarms) and synchronously notifies the central control system for rapid response.

Automated Logic Control The controller features flexible logic programming, allowing automated control strategies to be configured based on site-specific process requirements. For example, in the event of a leak alarm, it can automatically close relevant valves or activate exhaust systems to minimize risks.

Access Control Management Integrated with access control card readers, the controller monitors cleanroom access status in real-time, logs personnel entry/exit records, and supports hierarchical access authorization. Access event data is uploaded to the central system via standard protocols for security auditing and tracking.

Remote Monitoring and Centralized Data Management As an intelligent on-site node, the edge controller aggregates environmental and access data, transmitting it via Ethernet or wireless networks. Combined with upper-level platforms, it enables unified monitoring and historical data analysis, supporting continuous optimization of cleanroom environments.

Application Case Study

In a semiconductor cleanroom project, the ARMxy edge controller was deployed to connect over 20 liquid leak sensors, 10 temperature and humidity modules, and multiple access control card readers. The system successfully achieved real-time multi-point data acquisition, automated alarms, and access control management, significantly enhancing the cleanroom’s safety and operational efficiency.

Conclusion

The cleanroom leak detection and access control solution based on the ARM edge controller, with its high integration, reliability, and scalability, enables intelligent management of cleanrooms, ensuring environmental safety and production continuity. It represents a vital technological approach for modern cleanroom management.

Cleanroom Monitoring Solution Based on ARM Edge Controller

Cleanroom leak detection and access control solutions based on ARM edge controllers can achieve intelligent cleanroom management and ensure

[flowtech-scientific-instruments]

A Solution for Cleanroom Environmental Monitoring

Cleanrooms are among the most carefully directed basic conditions, regularly consistently monitoring temperature, differential weight, and relative moistness, notwithstanding the size and amount of each molecule. Nonstop environmental monitoring guarantees the nature of items produced in those spotless spaces.

Noteworthy worldwide rules requiring the monitoring of cleanrooms:

The FDA's Current Good Manufacturing Practice (cGMP) guarantees appropriate plan, monitoring, and control of assembling cycles and offices

The GMP gives rules to Good Manufacturing Practice across enterprises and all the more explicitly, the Annex 1 blueprints explicit rules as for therapeutic items made for human and veterinary use

weblink:  Cleanroom monitoring

Monitoring Cleanrooms

Cleanrooms of varying sizes and complexities are found in businesses going from semiconductor and drug assembling to biotechnology and clinical examination. In these ventures, numerous applications consistently screen the environmental conditions in aseptic assembling regions to exhibit cleanroom execution for administrative consistence.

Aseptic handling is observed in drug and clinical gadget assembling to demonstrate the climate doesn't contrarily affect persistent security and item quality. Both wellbeing and quality can be unfavorably affected if such a large number of airborne particles enter the space.

Transforming environmental information into data –, for example, constant information perception, recorded pattern reports, and alert warnings – is key for successful monitoring. With this data, it is simpler to perceive when issues emerge and make a move before it is past the point of no return. Utilizing an information driven methodology for the executives of cleanrooms implies that without trading off security or quality, there is less isolated item, less item squander, and less interferences during assembling bringing about operational reserve funds.

[flowtech-scientific-instruments]

Clean Room Monitoring Equipment

The current demands of today’s industry for quality control and quality assurance have been driven by the aspiration to deliver consistently high quality and safe products to the consumer. The industries such as aerospace, electronics, medical devices and most importantly pharmaceutical manufacturing demands strict control of contamination to ensure regulatory compliance, safety of products, & operational effectiveness. This has made it imperative for the clean-rooms & its associated environment to be monitored continuously for unwanted events.

Flowtech Scientific provides a number of solutions for clean-room applications that helps the customers to address potential events as they happen and also provides supporting data when root cause analyses is performed.

Our Clean Room Monitoring Equipment  helps to eliminate contamination by dirt particles, some of which potentially contain microorganisms or toxins, and to provide a controlled physical environment with respect to temperature, pressure and humidity.

Depending upon the signals given by our humidity and temperature sensors, the air is humidified or dehumidified and heated or cooled.

One of the major cause of contaminants in the clean room is pressure difference. If the area which is supposed to be clean is at low pressure than the surrounding area, & if the door is opened, contaminants can enter. This happens because air tends to flow from a high pressure area to a low pressure area.

Hence, along with Temperature & Humidity, Our Clean Room Monitoring Equipment also measures the pressure difference continuously thereby making it possible for the HVAC systems and pressurizing pumps to keep high pressure inside the clean room.

Distance Monitoring:

Generally pharmaceutical manufacturing and packaging units require controlled environment at all stages. In such cases there are multiple clean room areas in the same unit. It is practically impossible for a quality assurance manager or a supervisor to personally check all clean rooms at the same time. To ease the pressure, Our Clean Room Monitor does that for you.

The output from multiple detectors situated at multiple clean rooms can be configured to a single clean room monitor directly in the Supervisors cabin. This enables the supervisor to keep a constant track of excursions of the environmental parameters at all places at the same time. 

Alarm Indication:

Our device allows the user to have suitable set points for each environmental parameter. Whenever the parameter deviates from the acceptable range, the concerned authorities are alerted with a Buzzer cum Flasher. The best part of our alarming device is that it can be flush mounted, which makes it complaint with Clean Room standards.

USPs of our Clean Room Monitoring Equipment:

·         Flush mounted equipment – leaving no chance for dust and other particulate matter to settle on the equipment.

·         Varied display size, whichever suits the client’s requirement – 0.4” & 1”

·         Repetitive display – that can give visual indication at multiple places.

·         Inbuilt as well as remote sensor connecting facility.

·         Rs-485 communication.

·         Customized SCADA software for monitoring multiple cleanrooms simultaneously.

·         Inbuilt Buzzer and LED Flasher for Alarm indication.

·         User settable alarm with (HH – High High; LL – Low Low & LH – Low High) settings.

[microbiologicaltestingworld-blog]

Minimizing Cleanroom Contamination: Understanding the Risk People Pose

Cleanrooms play a vital role in maintaining contamination-free environments for pharmaceutical products.

With the use of environmental monitoring methods, cleanrooms are thoroughly assessed to analyze the quality of the environment.  While it’s important to maintain a cleanroom free of contamination, cleanroom contamination can arise. Although there are a number of causes for this, most contamination can be traced to humans working inside the cleanroom. It’s vital that pharmaceutical facility members understand how personal hygiene and habits can impact the cleanliness of a cleanroom. The following are tips to help maintain an area free of contamination.

 Cleanroom Clothing and Body Products

In addition to good personal hygiene, it is extremely important to be mindful of the clothing you wear and the body products you use if you work in a cleanroom since you don’t want contamination to make its way inside.

In regards to clothing, you should get into the habit of wearing non-linting clothes made of cotton or polyester. Avoid nylon or other synthetic fabrics that have a tendency to create static. Daily bathing and shampooing are important as it helps control flaky skin and dandruff. Ensure deodorant is dry, unscented and not a powder. Your hair should be combed frequently before entering since combing removes dandruff and loose hair. Always wear a bouffant cap and never remove it in case hair falls. Fingernails should be trimmed fairly short and it’s best to advoid wearing nail polish. Cosmetics such as lipsticks, eye shadows, mascara, and foundation, as well as perfumes and colognes are not recommended.

Always wash your hands prior to entering the cleanroom to remove dead cells and prevent your skin from flaking. Avoid scratching or rubbing your skin once inside the cleanroom since this can cause exfoliation and product contamination.

Avoid Wearing Dangling and Hanging Jewelry Wedding and engagement rings are usually acceptable, but any jewelry with sharp edges or prongs should be avoided since they can puncture gloves or garments. Dangling earrings, necklaces, and other hanging jewelry is not recommended since they can interfere with cleanroom activities. Personal items such as purses and wallets should not be kept in the cleanroom.

Wear Cleanroom Garments and Accessories Accordingly Cleanroom garments must not touch the floor since this contaminates the garment. Garment pockets should always be empty.  Eyeglasses or goggles are strongly recommended since our eyes spew out mucus each time we blink. Dry skin and saliva can cause product contamination, so wearing a face mask may be necessary.