According to the European Commission, buildings account for 40% of Europe’s energy consumption. Interestingly, altough car parking lighting operated 24/7, they are often neglected in these modernsation efforts. If you assume that your car park is already “efficiently” or “intelligently” lit, we dare say that there is still considerable untapped potential for energy savings and efficiency. In reality, many parking facilities could benefit greatly from more advanced, adaptive lighting control technologies.
The Importance of Smart Lighting in Car Parking Facilities
In underground garages and multi-storey car parks, bright and uniform lighting is critical not only for visibility but also for safety and security. Proper illumination diminishes shadows, helping people feel safer and drivers feel more in control.
Beyond safety, energy savings and ease of maintenance are major considerations in car parking. Lighting on demand, through automated control motion detectors, minimizes the time lights remain active, ultimately leading to decreased operational costs and lower energy consumption.
The Evolution of Motion Sensors in Car Park Lighting
ON/OFF Microwave Radar Sensor Switch
Controlling lighting with motion sensors in parking areas is now a common practice. Traditional lighting control systems, such as infrared human body PIR sensors, aim to minimize the time lighting systems are active. However, this PIR detetcion technology isn’t considered efficient lighting control for car parking lighting nowadays. These systems often fall short due to their limited detection range, sensitivity to temperature, and inability to cover large areas effectively.
In response, more advanced technologies such as the ON/OFF microwave radar sensor switch have emerged. These sensors offer several advantages:
- High sensitivity: Capable of detecting motion over longer distances and through non-metallic objects.
- 360-degree coverage: Eliminates blind spots in the detection area.
- Uninfluenced by temperature: Even in hot environments like underground garages, where temperatures may exceed 37°C, the sensor’s effectiveness is not diminished.
- Fast reaction speed: The sensor is quick to trigger lights when motion is detected, making it ideal for fast-moving vehicles in parking facilities.
- False trigger prevention: False activations are minimized, ensuring that the system only responds to genuine motion.
For example, these microwave radar sensors can detect vehicles traveling at speeds of 20-25 km/h from distances of 8-10 meters and adjust the lighting to 100% brightness before the vehicle even reaches the sensor. This fast response ensures safety and optimal lighting conditions than traditional always-on lighting systems
The Master/Slave Motion Detector System
The master/slave motion detector is another step forward in parking lot lighting. It improves better overall visibility and sudden on/off flickering by grouping lights into networks controlled by a master luminaire. When the master sensor detects motion, all connected lights in that group are activated simultaneously.
While this system is more efficient than older technologies, it still not fully opetimized. Since large ares of lighting are activated even when motion is detected in only a small portion of the space, it can still lead to unnecessary energy consumption.
A More Efficient Solution: Swarm Intelligence
A better solution in car park lighting would be a lighting system that follows people around and switches off stimulately when they leave the area. By integrating sensors into each individual light source instead of connecting entire groups to a central motion detector, energy efficient, responsive and adaptive lighting environment become a reality.
The latest innovations in car park lighting is swarm intelligence, designed to save even more energy while maintaining safety and user comfort.
How Swarm Intelligence Works
Each light fixture in a swarm intelligence system is equipped with its own motion sensor, allowing it to operate independently. However, the lights are connected in a wireless network that enables communication between them. In this way, the network and therefore each individual lighting knows exactly where you are. When one sensor detects motion, it brightens the corresponding light and sends a signal to neighboring lights. These lights then adjust their brightness based on their proximity to the detected movement. The light around the person is very bright and the further away the light sources are, the lower the brightness level.
Imagine the following, you enter a car parking, when you open the door, the lights around you are already switched on. Your movement has already been communicated by the lights through the door, which is why they are already dimmed up when the person enters the area. And the lights near you brighten to full intensity (100%) while those farther away dim to lower levels (e.g., 0%). This ensures that the space surrounding the individual is well-lit without wasting energy on areas where there is no activity.
The swarm intelligence system adapts to real-time movement, ensuring that dynamic, on-demand lighting system. The settings can be easily modified using an IR remote controller to meet more specific needs, like sensitivity, daylight threshold, standby lux. It is also versatile and can be tailored for use in various environments, including offices, warehouses and other large facilities where energy savings and lighting optimization are key concerns.
Project Cases for car parking
Another concern that often arises is whether the light can follow a fast-moving car quickly enough. Our RF microwave motion sensors addresses this issue effectively. The fast detection and communication between lights ensure that even moving cars are followed by adequate lighting, minimizing any potential risks. The video is an example from one of our car parking light projects.
Smart parking lot lighting has come a long way from the inefficient systems of the past. With the introduction of PIR motion sensor, ON OFF microwave radar sensors, master/slave detectors, and most notably, swarm intelligence. car park lighting has become more energy-efficient, safer, and user-friendly. Intelligently lit car parks should not only consume less energy, but also be environmentally and user-friendly.
New Emergency Driver for Car parking
Emergency drivers are another key feature for underground car parks. Facilities operate without on-site staff or after regular hours, constant lighting for security purposes is essential to ensure the safety of both people and property. In the event of a power failure, which create dangerous environments, as the sudden loss of lighting might lead to accidents or hinder the ability to evacuate in case of an emergency, an emergency driver ensures that the lighting system continues to operate, switching to battery backup power seamlessly to provide constant illumination. To address this, Litwheat has developed an YW702 emergency converter that integrates a microwave motion sensor, LED driver, and battery backup.
In the event of a power failure, the lights automatically switch to emergency mode, staying fully illuminated for up to 90 minutes, and even extending to 3 hours. This ensures that the car park remains safe and operational until the main power supply is restored.
By integrating microwave motion sensors, the emergency driver can ensure that the lights operate efficiently in normal working time. The motion sensors trigger full brightness only when necessary, saving energy while maintaining visibility and safety.
Besides indoor car parking garage motion sensors, we also supply motion detetcors for outdoor carpark lighting. Pls read the article: Smart Street Lighting Control with ZHAGA D4i Motion Sensor: A Step Towards Smart Cities.
