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Shaanxi Rugao Electric Co., Ltd
Working principle, performance characteristics and selection of road cone sound and light alarm
Date: 2025-08-25Read: 32
Road cone sound and light alarmAs a key equipment for temporary traffic control, a movable warning unit is formed by combining with road cones to build a dynamic safety defense line in scenarios such as road construction and accident rescue. Its design needs to balance portability and warning effectiveness, becoming an important tool for road emergency management.
The working principle is based on a modular sound light collaborative triggering mechanism. The device consists of a core control module, LED warning light group, piezoelectric buzzer, and power supply unit. The triggering methods are divided into two categories: manual and automatic. The manual mode is activated by the top button and is suitable for preset alert areas; The automatic mode integrates infrared or microwave sensing modules, which synchronously activate sound and light signals within 0.5 seconds when a moving object (such as a vehicle or pedestrian) is detected approaching within 30 meters. The light signal adopts a high-frequency strobe design, with alternating flashing of red and yellow LEDs (frequency 3-5Hz). The visible distance can reach 500 meters under daylight conditions, and the recognition can still be maintained at 200 meters on rainy and foggy days. The sound module is amplified through a special cavity to produce a warning sound of 100-110 decibels (similar to a traffic warning whistle). The directional diffusion angle of the sound wave is controlled within 90 degrees, ensuring the warning range and avoiding noise pollution.
The performance characteristics focus on outdoor environmental adaptability and practical convenience. The structural design adopts an integrated waterproof shell (protection level IP66), which can withstand short-term immersion (30 minutes at a depth of 0.5 meters) and temperature fluctuations from -30 ℃ to 60 ℃, meeting the requirements of all-weather operation. The power supply system supports dual modes of lithium battery and solar energy. The 2000mAh lithium battery can work continuously for 48 hours on a single charge, and when paired with a solar panel, it can achieve light controlled charging, extending the battery life to over 72 hours under 4-hour sunlight conditions. The installation method adopts a quick release card holder, which is compatible with standard road cones with a diameter of 30-40cm. The installation time is ≤ 30 seconds, and the warning direction can be adjusted by 360 ° rotation. part
The model has wireless networking function, and multiple devices can be triggered synchronously to form a linkage warning tape within a range of 50 meters.
When selecting, special attention should be paid to the adaptability of the scene. High power models (sound ≥ 110 decibels, LED power ≥ 5W) are preferred for road construction scenarios to ensure penetration in traffic noise; Temporary control of urban roads can use medium power equipment to balance warning effects and noise control. In harsh environments such as coastal areas and chemical zones, anti-corrosion versions should be selected, with the shell made of 316 stainless steel and the circuit coating moisture-proof and salt spray resistant. For long-term outdoor use, priority should be given to models with light control sensors that can automatically recognize environmental light intensity and adjust brightness, saving energy while avoiding light pollution. In addition, it is necessary to verify the certification qualifications to ensure compliance with GB/T 24973-2010 "Specification for the Installation of Road Operation Safety Facilities", and key parameters (such as protection level and warning distance) must be tested by a third-party.
Through scientific selection and rational deployment,Road cone sound and light alarmIt can reduce the risk of accidents in temporary work areas on roads by more than 50%, providing dual safety protection for on-site personnel and passing vehicles.