Tunnel cluster communication coverage Solution
(Beijing hengxingketong Technology Development Co., http://www.bjhxkt.com 010-82565576)
1. Overview of tunnel cluster communication coverage system
Tunnel cluster communication coverage Solution
The tunnel cluster communication coverage system includes the M scheduling intercom subsystem, the m public security fire protection cluster subsystem, and the FM broadcast and emergency broadcast subsystem. The scheduling intercom subsystem is mainly used for internal communication between the tunnel management unit. It enables flexible communication between maintenance, patrol, and other personnel in the tunnel and the management personnel in the control room, meets internal management, command, scheduling, and other needs. By introducing signals from base stations outside the tunnel, the m public security fire protection cluster sub-system can meet the communication requirements of traffic police, fire control and other units in the tunnel to ensure normal operation in emergencies. The FM broadcast and emergency broadcast subsystem can not only introduce the FM broadcast signal into the tunnel, so that the broadcast listening is not interrupted when the vehicle passes through the tunnel, but also when there is an emergency in the tunnel, it can intercept broadcast signals and immediately notify people in the vehicle of emergency information.
II. M scheduling intercom Subsystem
Tunnel cluster communication coverage Solution
The m scheduling intercom subsystem provides mobile communication between working faces in the tunnel, covering the tunnel management area and important equipment room. The m scheduling intercom subsystem is designed to establish flexible communication between maintenance, rescue, patrol, and other personnel in the tunnel and the management personnel in the control room, it can send information, notifications, and commands to the tunnel staff through the scheduling Base Station of the control center, so as to promptly issue commands and dispatch personnel for emergencies. You can also establish a link with an external phone through the dialing system. The m scheduling intercom subsystem uses a MHz analog communication mode, and the tunnel shares a group of upstream and downstream frequency points.
3. Tunnel cluster communication coverage Subsystem
Tunnel cluster communication coverage Solution
The tunnel cluster communication coverage subsystem can realize communication between the fire handheld station and the fire center base station, the mobile fire command vehicle, and the fire handheld station in the tunnel; the communication between the Public Security handheld station and the Public Security Center base station and between the mobile police conductor and the Public Security handheld station in the tunnel can be realized. The communication adopts the half duplex mode with different frequency and the single work mode with different frequency.
Iv. FM broadcast and emergency broadcast Subsystem
Tunnel cluster communication coverage Solution
The FM broadcast and emergency broadcast subsystem can receive 5-10 FM frequency signals (main FM broadcast signals in XX City) and forward them to the tunnel, in this way, vehicles traveling in a tunnel receive fmbroadcast. In an emergency, the system can interplay the full-band broadcast channel. In an emergency, the system can broadcast rescue information to the on-board radio through FM broadcast.
V. Tunnel cluster communication coverage system networking
The tunnel cluster communication coverage system combines the above system communication platforms to meet the requirements of tunnel scheduling, public security, fire control, emergency response, and operation. The scheduling intercom system, public security cluster (350 m) system, fire protection cluster (350 m) system, and fmbroadcast system share a leak cable to save space resources in the tunnel.
6. Tunnel cluster communication coverage system monitoring
All Channel cluster radio coverage system signal relay equipment (including optical fiber direct station near/remote, select frequency direct station, etc.) should have remote monitoring function, monitoring personnel can perform remote monitoring and control through the computer of the network management terminal established in the tunnel control center.
Tunnel cluster communication coverage system
