How to choose a cost-effective emergency telephone and tunnel broadcasting system?

Shenzhen Lidian Golden Century Technology Co., Ltd. is a high-tech company specializing in the research and development, production, sales and after-sales service of optical and electrical communication products. It has a team of high-quality professional and technical personnel, including 15% PhDs and masters, 50% undergraduates and 20% college graduates. The company has long served in the construction of highway electromechanical fields. The main products are: emergency telephone and tunnel broadcasting system, intelligent fog light automatic induction system, toll station/bridge IP broadcasting system, solar video monitoring system, wind and solar complementary power supply system, electro-optical signs, etc.

The intelligent fog light automatic induction system is characterized by the use of innovative design concepts. The flashing frequency, color, brightness, etc. of all fog light chains are automatically controlled by the monitoring center or field extension. It mainly solves the safety problems of highway curves, bridges, fog areas, accident-prone areas under severe weather conditions such as fog, rain and snow. The product has obtained a national patent, patent number ZL201320114134.7, and has passed the inspection of the "National Traffic Safety Facilities Quality Supervision and Inspection Center".

The solar video surveillance system is characterized by low power consumption. The power consumption of the whole video surveillance system is less than 6W. It can maintain normal power supply for more than 25 days in continuous rainy days. It is especially suitable for areas with less sunshine throughout the year. Solar video surveillance cannot work normally due to power shortage in winter.