In fields such as biomedicine, modern agriculture, materials research and development, food science, and scientific education, a stable, precise, and reproducible experimental environment—encompassing temperature, humidity, lighting, and gas conditions—is essential. However, complex control requirements, cumbersome data recording, and equipment operational stability often pose significant challenges for researchers and facility managers.
Based on the feedback from the market, the Pizhi Measurement Control team has made a series of upgrades to the PHQSH series of products, significantly improving the performance of the products to meet the increasingly demanding experimental needs. This multi-functional artificial climate, light, and temperature-humidity controller focuses on addressing practical pain points and provides reliable environmental simulation and data management support for various high-end experimental equipment.
Designed to meet the diverse experimental requirements
Biomedicine: Provides stable environmental conditions for core experiments such as cell culture and microbial fermentation.
Smart Agriculture: Supports environmental simulation required for plant growth research, seed germination tests, and tissue culture.
Materials Science: Specifically used for material aging tests, environmental stress screening, and reliability assessment experiments.
Food Industry: Offers precise temperature and humidity environments for food shelf life testing and packaging material moisture permeability testing.
Research and Education: Supports various environmental simulation experiments and is a practical platform for environmental simulation experiments and teaching demonstrations in universities and research institutions.
Key Function Analysis
Comprehensive environmental simulation capabilities: Based on the precise budgeted PID algorithm, it can flexibly match fixed-frequency compressors, variable-frequency compressors, electronic expansion valves and other firmware, and precisely control temperature, humidity, illuminance, carbon dioxide concentration, oxygen concentration, etc.
Flexible and powerful lighting control: It supports up to 8 independent lighting controls, and can freely combine different spectra and intensities such as warm light, white light, ultraviolet, blue light, and red light to effectively simulate the complex light cycle changes in nature. The lighting unit can be selected as lux or umol.
Internet of Things data management: Standard equipped with network port/Wi-Fi module, supporting remote monitoring, real-time data collection and firmware online upgrade; built-in large-capacity storage, historical data can be traced.
Flexible and variable control modes: Supports fixed value, multi-segment program, 24-hour cycle and other modes, easily presetting complex automatic timing change logic.
Flexible control mode
Setpoint mode: Set a single target value (e.g., constant 25°C), and the system will automatically maintain a stable environment.
Program mode: Supports up to 999 steps and cycles, and can preset complex temperature changes, humidity fluctuations, light cycles, etc. in sequential logic.
24-hour cycle / Beijing Time mode: Can specify a specific time to automatically start the program, enabling unmanned operation.
Convenient data management
Remote monitoring and operation: It can be equipped with network ports/Wi-Fi modules, and supports remote monitoring, data collection and firmware upgrade via mobile phones or computers.
Historical data query: Historical data and historical curves can be queried by time. The data can be exported to CSV or PDF format via a USB drive, facilitating analysis and report writing.
Alarm records and operation log traceability: All alarm events are automatically recorded, including type, occurrence and recovery time, providing a basis for fault diagnosis and experimental analysis. The operations of each level of personnel based on the permission management function are automatically recorded, facilitating later traceability.
Core Advantage Innovative Data Processing and Control Algorithms
New humidity filtering method: Utilizing the percentage smoothing algorithm, it effectively filters out the high-frequency noise interference in the sensor signal, making the humidity display value more stable and smooth, and avoiding misjudgment caused by data fluctuations. It also supports switching, balancing stability and response speed.
Advanced Kalman filtering algorithm: Introducing the Kalman filtering algorithm, it accurately estimates the system state, suppressing random interference while quickly tracking the changes in the true value. This makes the control curve smoother, the response speed faster, and is particularly suitable for experimental scenarios requiring precise dynamic control.
Real-time operating system (RTOS) reconfigures the underlying program framework, ensuring strong determinacy of task execution time, avoiding execution delays or uncertainties, significantly improving system response speed and control accuracy, and enhancing the overall reliability of the equipment.
Intelligent energy-saving design: Intelligent dual compressor power switching mode, based on the PID algorithm, calculates the cooling demand in real time, and makes intelligent decisions on whether to activate the second compressor. When the load is low, a single unit operates more energy-efficiently, and when the load is high, both units operate to ensure the cooling speed, effectively extending the service life of the compressor.
Hardware-software collaborative expansio
Modular hardware design: The core mainboard is responsible for core algorithms and human-computer interaction; an optional independent three-gas controller board (precisely controlling CO₂, O₂, N₂) and a light control board (achieving multi-channel independent light control) can be selected.
Strong driving capability: Supports high-power strong current output (directly driving humidification, heating, compressors, etc.), and is compatible with various sensor inputs (PT100/NTC/illumination, etc.) and switch output.
Rich interfaces: Integrates USB, network port, printer interface, etc., facilitating data transmission and connection with external devices.
Summary
This multi-functional artificial climate lighting constant temperature and humidity controller is focused on enhancing the stability, accuracy, flexibility and data management efficiency of laboratory environment control. Through solid algorithm optimization (Precision Budget PID, humidity smoothing, Kalman filtering, RTOS), reliable hardware design (modular, high-power drive, intelligent dual compressor) and user-friendly interaction experience (touch screen, data export, convenient management), it aims to provide a practical and reliable environmental control solution for researchers and equipment manufacturers.
Thank you for your attention. If you need product information or samples, please feel free to contact our sales representatives!
- End -
