DH-E500: Intelligent Integrated Bird Repellent Solution for Power Transmission Lines

Bird-related hazards remain a persistent threat to power transmission systems. Nesting, perching, and droppings frequently cause short circuits, flashovers, and outages, leading to significant economic losses. Traditional methods—reflective mirrors, bird spikes, and fixed-frequency ultrasonic devices—quickly lose effectiveness as birds adapt. They also suffer from poor weather resistance, complex installation, and high maintenance costs.

Core Advantages: Multi-Technology Synergy for Long-Term Protection

The DH-E500 intelligent integrated bird repellent by Dinghe Innovation addresses these challenges through three complementary deterrent technologies:

1. Variable-Frequency Ultrasonic Repellent

The device generates continuously varying ultrasonic frequencies from 16 kHz to 25 kHz via four transducers, outputting 120 dB sound pressure. Unlike fixed-frequency units, this variable design prevents birds from adapting, providing persistent protection without harming humans or interfering with electrical equipment.

2. Voice Deterrent System

Two 20W high-power speakers broadcast predator calls and gunshot sounds at 120 dB. This targeted acoustic deterrent effectively disperses flocking birds and complements the ultrasonic system to significantly enhance overall repellent efficiency.

3. High-Intensity Flashing Lights

Eight imported high-brightness LEDs (4 red, 4 blue) produce alternating strobe flashes that create strong visual stimulation. Combined with ultrasonic and voice deterrents, this "sound + light" dual protection achieves rapid, second-level response against sudden bird gatherings.

4. Solar-Powered Durability for Harsh Environments

Designed for remote, off-grid installations, the unit features an efficient solar panel paired with a 12V/5Ah battery, enabling fully autonomous operation. With a service life exceeding 8 years, dimensions of just 250×200×160 mm, and a weight of 4.5 kg, it is easy to install on transmission towers, distribution poles, and substations while withstanding extreme weather.

Applications and Industry Value

The DH-E500 is widely applicable across transmission towers, distribution networks, substations, and remote unpowered facilities. By integrating multiple deterrent technologies, solar autonomy, and rugged design, it transforms bird hazard prevention from passive, reactive maintenance into proactive, long-term control—fundamentally reducing fault risks while minimizing maintenance costs and safety hazards associated with high-altitude servicing.