Classroom lighting retrofit is more than just "replacing old lights with new ones"
Source: 中国之光网|| Views: 1773
According to the "White Paper on Eye Health in China" released by the National Health Commission on June 5, 2020, the overall myopia rate among children and adolescents nationwide had already reached 53.6% in 2018, with 81% among high school students and over 90% among college students.
This alarming set of figures has once again focused public opinion on classroom lighting—after all, primary and secondary school students spend an average of 8–10 hours a day in the classroom, and poor classroom lighting will directly lead to declining vision among adolescents.
▲ Common Classroom Environment
However, many people have only a superficial understanding of classroom lighting retrofits, which can be summarized into three main issues: How to choose lights? How to arrange lights? How to control lights?
1.How to Choose Lights?Glare on the blackboard makes it hard to see, classrooms are dim on cloudy and rainy days, and shadows fall on textbooks when looking down to read... These issues that once troubled us still plague students today.
▲ Common Fluorescent lamp Classroom Lighting
Traditional fluorescent lamps commonly used in classroom lighting suffer from high flicker, incomplete spectrum, insufficient and uneven illuminance, and low color rendering index (CRI). This not only causes visual fatigue and contributes to myopia, but the resulting color loss and color cast also affect children's color discrimination ability. The emergence of LED eye-protection lamps has provided a turning point for this phenomenon. Taking the Shunzhou Intelligent SZ-CL02 side-lit eye-protection lamp as an example, it features no flicker, suitable color temperature, high and uniform illuminance, avoiding the radiation and blue light hazards of fluorescent lamps. Its grille design and microcrystalline design also effectively prevent glare.
2.How to arrange lights?In typical classroom scenarios, eye-care lights are generally positioned parallel to the side windows. To ensure adequate illumination across the entire blackboard, 2-3 blackboard lights are usually required, arranged parallel to the blackboard.
▲ Classroom lighting layout for reference
Shunzhou Smart Smart Classroom IoT Solution, taking a classroom with an area of 63㎡ and dimensions of 9000x7000x3400mm as an example, designed the following lighting layout.
In actual construction, different classroom sizes, window positions and quantities, and classroom shapes will all affect the specific lighting layout. Shunzhou Smart Smart Classroom IoT Solution will provide professional design based on actual implementation conditions to ensure the most ideal lighting effect. 3.How to control the lights?Selecting the appropriate luminaire and installing it properly is only the first step in classroom lighting renovation. In practical scenarios, there are differences in classroom lighting requirements between noon and evening, sunny days and rainy/overcast days . Additionally, since manual light switching is difficult to manage , many schools keep "always-on lights" on from morning to night, resulting in significant energy waste.
▲ Uneven classroom lighting under pure natural light
Shunzhou Intelligent Smart Classroom IoT Solution provides the perfect answer to this problem. The solution adopts a front-end illuminance sensor + smart gateway + back-end cloud platform management approach to monitor classroom illuminance in real time and联动 with light controllers to intelligently control luminaire luminance, keeping the lighting in the classroom always at an ideal state.
▲ Remote control to turn on lights in selected areas
Meanwhile, by integrating occupancy sensors, it enables features such as zone-based lighting, automatic on when people are present, and automatic off when the area is vacant, providing lighting on demand to reduce energy waste and prevent additional power consumption caused by forgetting to turn off lights.The solution can be further expanded based on actual needs.By integrating terminal hardware such as environmental sensors, smart circuit breakers, curtain motors, facial recognition attendance machines, smart sockets, and touch panels, it enables intelligent adjustment of classroom air quality, electrical safety protection, automatic opening and closing of curtains and windows/doors, and facial recognition check-in for entering the classroom.
▲ Shunzhou Smart Classroom Integrated Solution
All terminal hardware control and smart classroom operational status can be managed online and remotely via the Smart Classroom Management Platform and APP. For example, administrators can operate lighting in all classrooms from the backend, even down to individual light switches.
This nearly all-around solution is very easy to implement: it uses a fully wireless communication method, avoiding complex wiring processes, keeping labor costs under control, and offering strong scalability, leaving room for higher-level intelligent upgrades in classrooms.
▲ Case Studies
On August 30, 2018, the Ministry of Education, the National Health Commission, and six other departments jointly issued the "Implementation Plan for Comprehensive Prevention and Control of Myopia in Children and Adolescents," explicitly stating "Implement lighting and illumination requirements for classrooms, dormitories, libraries (reading rooms), etc., use lighting equipment conducive to visual health, and achieve a 100% compliance rate with school classroom lighting hygiene standards." Recently, the revision of the "Hygienic Standard for Daylighting and Lighting in Primary and Secondary School Classrooms" has also been included in the National Health Commission's 2020 annual health standard project plan. The storm of smart classroom construction is approaching, and the curtain on intelligent lighting retrofitting for classrooms has already been raised. Are you all ready? * Some images are sourced from the internet. Please notify us of any infringement so we can remove them.
