As we all know, in emergency command, the degree of commander’s information mastery, the timeliness and accuracy of command are all important factors that directly affect dispatch efficiency, but as a mobile terminal in the emergency command dispatch communication system, it is practical, but it is "little-known" function. Generally, people think that walkie-talkies only have two simple functions of transmitting and receiving, and they do not have other functions similar to mobile phones. If you think this way, you are quite wrong. In fact, the practical functions of the mobile terminal in the emergency command and dispatch communication system are far It's much more than this:
1, a call
The terminal enters the contact list with one key and initiates a person-to-person call. When the call is successfully connected, the mobile terminal can dynamically display the calling party's number during the call.
2. Group call
The system supports the group call function to meet the division of work groups for different business units. The terminal enters the contact list with one key and can initiate a group call. After the called party receives the group call, it judges that the machine writes the group call ID, and then joins the group call. Support "lag entry" function.
3. All call
The system can use the dispatch platform or high-level walkie-talkies to issue a unified all-call code from the signaling channel to realize the all-call function for system users.
4. Emergency alarm
The terminal has an "emergency alarm" shortcut key. In case of danger, you can manually press the "emergency alarm" button to send an emergency alarm message to the dispatching platform. The command platform can receive emergency alarms from the walkie-talkie, and has sound and light to remind the attendant.
5. Roaming
After each base station realizes IP interconnection, the base station and terminal all support roaming function. The walkie-talkie set for roaming is usually locked to the base station. Once the received channel of the base station is weaker than the set value, the terminal will automatically search for the base station signal with stronger signal, and automatically perform signal judgment, automatically switch and lock .
6. Short message call
Short messages can be transmitted between walkie-talkies and between walkie-talkies and base stations.
7. Save call records
Voice and duration can be recorded automatically.
8. Enter late
After the group call is initiated, the later registered users of the group will automatically join the group call.
9. Limited time call
In order to ensure the effective use of the channel and shorten the waiting time, there may be a time limit.
10. Offline pass-through function
Users outside the coverage of the system can enter the pass-through mode.
In addition to the 10 main functions mentioned above, all end users working under digital coverage base stations can implement more data service functions through the equipped digital walkie-talkies:
(1) Data service: single sending, group sending, and group sending of short messages.
(2) Digital signaling function: The digital signaling function can send special packets through the network to monitor mobile terminals. Digital signaling functions include: remotely kill the walkie-talkie, remote monitoring, check the walkie-talkie, call prompt and emergency call, etc.
(3) GPS data interface: The walkie-talkie has GPS function, and uploads GPS data to the system command and dispatch center. Provide GPS data interface in the system command and dispatch center.
(4) GPS data is fully compatible with GIS: the location and trajectory of each firefighter can be displayed in real time on the software's Google Earth or Google Map and other electronic maps.
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