In the complex and dangerous working environment of mines, it is crucial for the emergency lighting function of explosion-proof led lighting for mines to work in coordination with the main lighting system. Once the main power fails or an emergency occurs, the emergency lighting needs to be started quickly to ensure the safe evacuation and emergency treatment of underground personnel. The efficient coordination of the two depends on scientific design and reasonable control strategies.
Explosion-proof led lighting for mines usually adopts a dual independent configuration of main power supply and emergency power supply. The main power supply is generally connected to the mine power grid to power the daily main lighting system; the emergency power supply mostly uses a lithium battery pack, which exists independently of the main power supply. The main power supply status is monitored in real time through the intelligent power switching module. When the main power supply is normal, the emergency power supply is in a charging standby state; once the main power supply is detected to be off or the voltage is abnormal, the switching module will automatically cut off the main power connection within milliseconds, and connect the emergency power supply at the same time, ensuring that the emergency lighting system seamlessly replaces the main lighting and avoids lighting blind spots underground.
In addition to the main power failure trigger, emergency lighting can also be triggered by manual triggering or environmental monitoring. The manual trigger button is usually set in a convenient position for operation, so that underground personnel can actively turn on the emergency lighting in an emergency. At the same time, the built-in environmental sensors (such as gas concentration sensors and smoke sensors) of the lighting lamps can monitor environmental parameters in real time. When abnormal conditions such as excessive dangerous gases and fires are detected, the emergency lighting is immediately triggered to start. In terms of control logic, the priority of emergency lighting is clearly set higher than that of main lighting to ensure that emergency lighting can respond first under any emergency conditions and provide lighting guidance to personnel in a timely manner.
The main lighting system usually provides high-intensity, large-area lighting to meet daily operation needs; emergency lighting aims to ensure the safe evacuation of personnel and cooperates with the main lighting in brightness and lighting mode. When the emergency lighting is started, the brightness can be adjusted to an appropriate level through the intelligent dimming circuit, which can not only ensure a clear field of vision, but also reduce the energy consumption of the emergency power supply and extend the lighting time. At the same time, the emergency lighting can be switched to a flashing mode or a directional guidance mode, using the flashing of lights or strong light in a specific direction to indicate the direction of the safe exit for underground personnel, complementing the conventional lighting mode of the main lighting and improving the efficiency of emergency evacuation.
To achieve more efficient collaborative work, explosion-proof led lighting for mines can be connected to the mine communication network and linked with other safety equipment (such as alarm systems and ventilation systems). When the emergency lighting is activated, a signal is sent to the mine central control system through the communication module, and instructions from the system are received at the same time. For example, the central control system can remotely adjust the brightness, lighting area or flashing frequency of the emergency lighting according to the distribution of personnel and dangerous conditions underground, so that the emergency lighting can work closely with the emergency response system of the entire mine to provide precise lighting support for rescue and evacuation work.
The management of emergency power directly affects the continuous working time of emergency lighting. Through the intelligent power management system, the power and charging and discharging status of the emergency power supply are monitored in real time, and the working mode of the emergency lighting is automatically adjusted according to the remaining power. For example, when the power is low, the lighting brightness is automatically reduced or the flashing interval is shortened to extend the emergency lighting time. At the same time, after the main power supply is restored, the power management system will give priority to charging the emergency power supply to ensure that it is always in a fully charged standby state and ready for the next emergency situation.
The emergency lighting function of explosion-proof led lighting for mines and the main lighting system are designed in a collaborative way with dual power supply configuration, intelligent triggering, coordinated control, communication linkage and scientific power management, achieving rapid response and efficient cooperation in emergency situations. This collaborative working mechanism effectively protects the life safety of underground workers, improves the ability of mines to respond to emergencies, and is an important guarantee for the safety performance of mining lighting equipment.
