What are the aspects of expressway infrastructure for tunnel cable broadcasting?

What are the aspects of expressway infrastructure for tunnel cable broadcasting?

With the development of mobile communication technology, more and more people own mobile phones. Due to the poor cell phone signal in the tunnel, the tunnel emergency phone also plays an important role in the rescue and rescue. It is one of the infrastructures for highway construction.

In the case of a tunnel fire or accident, it is possible to close one tunnel and another tunnel to pass in both directions. In order to evacuate vehicles, the driver is notified to broadcast in the monitoring room. Therefore, the tunnel emergency telephone and broadcasting system are also the infrastructure for highway construction.

What are the aspects of expressway infrastructure for tunnel cable broadcasting?

1. The telephone adopts hands-free button type, which should be simple and reliable to use;

2. The upper part of the casing of the telephone should have an obvious telephone number sign;

3. There should be instructions or patterns for operation on the casing, and the expression should be simple and clear;

4. On the upper part of the phone casing, there should be a directional reflective sign indicating an emergency call in the direction of greeting and delivery;

5. The emergency telephone, the upper part of the outdoor side of the tunnel broadcasting cave should be equipped with eye-catching reflective signs and numbered signs or sign light boxes;

6. The emergency telephone in the cave is wall-mounted. The back and the interior wall of the tunnel emergency telephone cave are fastened by mechanical structure without shaking. The vertical angle deviation is less than or equal to 5°. The emergency telephone at the entrance is floor-mounted;

7. The tunnel power amplifier is wall-mounted, generally in the same chassis as the emergency phone, and the back of the tunnel and the inner wall of the tunnel emergency phone hole are firmly connected by a mechanical structure, installed together with the emergency phone or placed in the equipment grounding;

The emergency telephone and broadcasting system of the Baytop Smart Tunnel consists of an emergency telephone console, transmission optical cable, and emergency telephone extension. An emergency telephone is installed in the tunnel approximately every 200 meters. The emergency telephone console set up in the tunnel management office manages the emergency telephone extension to which it belongs.

The emergency telephone system uses an optical fiber emergency telephone system. The emergency telephone is the main component of information collection in the highway tunnel operation management system. If traffic abnormalities or major accidents occur in the tunnel, the driver can quickly notify the tunnel management personnel to request rescue, Troubleshoot quickly.

Tag: tunnel emergency phone, emergency phone, tunnel phone