Metro wireless intercom system

at present , Subways in various countries 、 Light rail and other urban transportation fields are mainly used in TETRA Digital trunking system . According to the scope of use ,400M The wireless system is mainly used for station security personnel 、 Communication between Station Services , and 800M The wireless system is used for the communication between the driver and the train dispatching, which is used by the subway maintenance personnel .

The city subway is a highly crowded area , In addition, the number of subway station staff is large 、 The communication demand covers a large area , Therefore, higher technical requirements are put forward for field communication guarantee . Considering the particularity of subway environment , In order to better improve the work efficiency of staff 、 Provide stable communication guarantee , Therefore, the subway wireless communication system must meet ：

1、 Wireless communication can provide voice communication between fixed staff and mobile staff in the subway 、 SMS and packet data communication ; The system is mainly based on group call , Selective calling can also be provided .

2、 According to business needs , For the central dispatcher 、 Station attendant 、 Depot / Parking attendant 、 Provide wireless communication means between train drivers and mobile personnel of various departments .

3、 Queue according to the priority of the user department or personnel , When all traffic channels are occupied , Calls with high priority can interrupt calls with low priority , To ensure the normal operation of scheduling , And ensure command in case of emergency 、 Dispatch .

4、 With emergency call function , Emergency calls have priority over all calls .

【 System composition 】

In order to improve the work efficiency of subway staff , Meet the daily emergency command and communication of subway staff , Improve the speed of user law enforcement 、 Ensure the harmony and stability of subway security , Beifeng communication is customized according to the subway BF-TD880 Digital trunking walkie talkie ：

Beifeng BF-TD880 be based on DMR Digital standards create , Superior design and performance , Digital analog compatibility ,1.8 Inch exquisite color screen vividly displays the operation track , Real time satellite positioning facilitates digital tracking ,400 Hour long recording , Multiple alarm modes and many other features , To ensure work safety , Improve the efficiency of communication , It's also a government agency 、 architectural engineering 、 Forestry 、 The smart choice for users in railway and other industries to seek high-quality digital communication solutions .

Performance advantages ：

① The whole plane PC+ABS Engineering plastic shell , Feel good ; built-in 1.8 Inch color screen , Show clearly .

②TDMA Dual slot technology , Channel capacity multiplication ; Digital analog compatibility , Cost effective .

③GPS Global positioning system , Beidou II positioning and GLONASS Positioning , Real time positioning , Convenient for timely scheduling and management .

④ Built in digital recording module ,400 Hour recording , Record voice data in real time .

⑤ Support 3 There are two alarm types ,3 An emergency alarm mode , Improve the safety guarantee of walkie talkie users .

⑥ Professional seal design ,IP67 Industrial protection standards , One meter deep water immersion 30 Minutes without affecting normal use .