Integrated pipe gallery intercom broadcasting system

Overview

The comprehensive utility tunnel refers to the public utility tunnel used for centrally laying out municipal pipelines such as electric power, communication, radio and television, water supply, drainage, heat, and gas underground. It is a modern, scientific, and intensive urban infrastructure. As an underground project, and due to the operation of various electric power, water conservancy, and communication equipment pipelines inside the tunnel, the tunnel has an extremely complex electromagnetic environment. These two conditions make it difficult for mobile communication signals to enter the tunnel. Therefore, the emergency telephones in the tunnel have become the only means of communication with the outside world. This determines that the emergency telephones in the tunnel cannot be equated with those in other industries. It serves as a communication guarantee system to provide real-time, stable, and full-coverage communication needs for the staff inside the tunnel, ensuring the safety of people's lives and property and the safe and stable operation of the tunnel project. Meanwhile, numerous units entering the tunnel have their own communication needs, which requires that the emergency telephones must have the communication ability to dial each other with the outside world and must be compatible with the calling needs of each unit entering the tunnel.

Scheme Deployment

Deploy an all-in-one touch-screen console and control telephones in the monitoring center, and a paging microphone can be optionally equipped; the system server and voice gateway are deployed in the central computer room, and the gateway is connected to the fixed telephone lines of the telecom operator.

Fire Protection Zone: Deploy protective IP telephone stations in the comprehensive cabin and the power cabin to meet the IP65 standard; deploy explosion-proof IP telephone stations in the gas cabin; equip the inspection personnel with handheld integrated terminals, and equip other staff with Wi-Fi mobile phones.

Amplified Intercom: The monitoring center can contact the staff inside the tunnel by dialing the amplified intercom group number. The speakers of all the telephone stations in the called group will output broadcasts. The staff who answer the call can find the nearest tunnel telephone station, pick up the handset to answer, and the amplification of other telephone stations in the group will be turned off. A two-way conversation will be carried out between the monitoring center and the answering party, and the video of the camera near the telephone station will be automatically popped up, and dual-channel video images can be supported.

Broadcast Notification: The monitoring center can initiate broadcast notifications to the tunnel partitions or the whole line through the touch-screen console. The broadcast content includes manual announcements, voice file music broadcasts, text-to-speech (TTS), and supports triggering broadcasts through timing or external events.

Call Outside Lines: The monitoring center console can enter the contact information of the commonly used contacts in the tunnel, and can quickly select the contacts through the touch screen for a conversation. The conversation content can be recorded throughout the process for later review.

One-key Alarm: There is an alarm button on the tunnel telephone. When the staff inside the tunnel encounter sudden events, they can press the one-key alarm button to send an alarm to the monitoring center. The central console will automatically pop up the video of the alarm location and emit an alarm prompt sound, and send a text message notification to the on-duty staff. After the monitoring personnel confirm the alarm, they can trigger the preset broadcast prompt.  

Scheme Composition

• Intercom Terminals: Installed at key positions in the tunnel, such as entrances, exits, intersections, etc. Staff can make calls through these terminals.
• Broadcast Speakers: Installed inside the tunnel, used to play emergency notifications or daily information.
• Control Center: Usually located in the monitoring room or management center of the tunnel. Staff can monitor the status of the intercom and broadcast systems here and perform corresponding operations.
• Communication Network: The communication network that connects each intercom terminal, broadcast speaker, and control center can be wired or wireless.
• Power System: Provides stable power support for the entire intercom and broadcast system.
• Emergency Buttons: Install emergency buttons at some key positions. When an emergency occurs, staff can press the buttons to immediately get in contact with the control center.
• Software System: The software used to manage the intercom and broadcast system can realize functions such as call record management and broadcast content management.

Scheme Functions

Real-time Intercom: Allows real-time voice communication among the staff inside the tunnel, facilitating communication and coordination in daily work.
Emergency Broadcast: In emergency situations such as fires and leaks, it can quickly broadcast emergency notifications to all areas inside the tunnel to guide personnel evacuation or take other emergency measures.
Zone Broadcast: The system can broadcast to different zones of the tunnel, which can convey information more accurately and avoid unnecessary panic.
Recording Function: The content of intercom and broadcast can be recorded for later analysis and recording.
Remote Control: The control center can remotely control the intercom and broadcast system, including turning on or off the broadcast, selecting the broadcast zone, adjusting the volume, etc.
Emergency Call: Set up emergency call buttons inside the tunnel. Staff can immediately call the control center when encountering an emergency situation.
Information Release: Can be used to release daily notifications, maintenance information, safety tips, etc.
Monitoring Function: The system can be linked with the video monitoring system to realize real-time monitoring of the internal situation of the tunnel.
Fault Alarm: When the intercom and broadcast system fails, it can automatically send an alarm to the control center for timely maintenance.

Scheme Summary

The comprehensive utility tunnel intercom and broadcast system is a complex and important communication system that plays a crucial role in ensuring the safe operation and emergency response of the tunnel. With the continuous progress of technology and the expansion of application scenarios, this system will continue to develop and improve.