Application of LED lighting system in fire lighting equipment

Fire department lighting equipment status

At present, the lighting equipment used by the fire department mainly includes wear-resistant explosion-proof headlights, portable glare lights, mobile lift lights, etc. The light source is basically a single-bead self-lighting LED, a halogen lamp, a xenon lamp, and the like. Through the investigation of the grassroots level, the current status of the use of grassroots lighting equipment is summarized as follows:

(1) Single-bead white LED light source has poor penetrating power in fire smoke environment, and single-bead LED reliability is not high.

(2) Halogen lamps, xenon lamps, etc., using yellow light source, due to high power, high power consumption, short use time, and the light source structure of this type of light structure has poor impact resistance and is easy to bump and damage.

(3) Large-scale lighting equipment such as mobile lighting lamps with halogen lamps and xenon lamps can realize large-area lighting, but the power of the bulb is large and the power consumption is high. It needs to be equipped with a large-capacity battery or power generation equipment, resulting in a large overall size of the equipment. Heavy weight, not easy to carry and transfer, and limited by power supply, not suitable for long hours of operation.

Feasibility of application of LED technology in fire lighting equipment

Through the understanding of the technical performance characteristics of the LED light source, combined with the actual operational needs of the firefighting force, it is believed that the following features of the LED can be applied to the fire-fighting lighting equipment in order to develop high-performance, high-reliability lighting equipment.

(1) The characteristics of LED energy saving and high luminous efficiency can minimize the power consumption and extend the lighting time in the equipment with the same capacity power supply and the same illumination, which is consistent with the firefighting team's long-term fire fighting and rescue in complex environments. The basic needs further reduce the need to reduce rescue efficiency by replacing lighting equipment.

(2) Because LED is made of epoxy resin solid-state package, it is resistant to impact, has long service life and high performance reliability, and meets the high-reliability equipment requirements of firefighting forces in complex environments such as smoke inside the fire. The device is damaged by bumps and loses illumination.

(3) LED is small in size and light in weight, and can be made into high-power lighting equipment by chip integration technology. Multi-LED integrated lighting equipment is developed to further reduce the weight of the equipment and prolong the use under the condition of ensuring lighting needs. life.

The development direction of LED technology in fire lighting equipment

(1) The application of LED light source in fire-fighting individual lighting equipment. 1 It can develop towards a yellow light source with strong penetrating power in a thick smoke environment or a single-device multi-color light source, and develop intelligent lighting equipment by using three-primary computer control technology to ensure individual lighting devices in different lighting by controlling the color of the lighting. The needs of the environment. 2-way multi-bead LED parallel structure development, multi-bead parallel structure can reduce the risk of loss of illumination due to damage of single equipment caused by single bead structure or single bead damage in multi-bead series structure, and improve the reliability of individual lighting equipment of firefighters .

(2) Develop large-illumination and portable mobile fire-fighting lighting equipment. Using multi-chip integration technology, by coating a thermal conductive metal layer on a printed circuit board, a high thermal conductivity and low thermal expansion (such as A1SiC) packaging material is selected, and the heat conduction structure of the outer casing is increased to produce a high-power LED light source.

(3) LED system combined with solar technology, can be developed to green fire lighting equipment. In the case of a global deterioration of the overall environment, the fire brigade, as a social rescue force to protect people's lives and property, should adopt more green lighting equipment. In combination with LEDs, the DC drive structure features solar cells to provide DC voltage characteristics, and the solar power supply system and LED equipment are combined to form a pure green lighting system, which can reduce the fuel consumption of the firefighting team during the rescue process, and at the same time make the lighting equipment diversified. Protection and development.

Conclusion

With the continuous improvement of fire fighting and rescue capabilities of firefighting forces, high-performance, high-tech fire-fighting and rescue equipment is a necessary guarantee for combat. In the case of the widespread application of LED lighting technology in the industry and the continuous innovation of technology, the combination The practical needs of firefighting forces and the active application of LED lighting technology to fire-fighting lighting equipment are of great significance for the development of high-performance, high-reliability and diversified lighting equipment.