Preface
Targeted poverty alleviation is one of the important policies implemented in China at this stage. In order to better discuss and timely solve the problems encountered in poverty alleviation tasks, Huarong District Digital Poverty Alleviation Command Post has replaced and upgraded the conference system equipment.
Difficulty
The staff pointed out to us that because the poverty alleviation work is complex and the task is heavy, we need to hold long meetings and discussions frequently, so we want an audio system that can be used for a long time with stable performance and can restore the speaker's voice as much as possible when giving instructions.
Solution
According to the requirements of the staff, the Relacart engineering team uses CS-302 Dante wired professional digital conference discussion system and CS-501 wired speech unit as the main pickup equipment.
According to the requirements of the staff, the Relacart engineering team uses CS-302 Dante wired professional digital conference discussion system and CS-501 wired speech unit as the main pickup equipment.
CS-302 Dante wired professional digital conference discussion system uses five types of network cables for power supply and audio transmission, because the five types of network cables have the advantages of simple production, affordable and flexible layout, and are applicable regardless of space size; The CS-501 speech unit adopts a capacitive cardioid directional pickup mode, which can accurately record the voice of each speaker, and uses the principle that the cardioid points to the front end sensitively and the back end has low sensitivity to reduce noise interference in the environment.
The small meeting room uses UR-222D with UD-222 as a supplement to the hand in hand meeting system. Because UR-222D and UD-222 can be moved flexibly, they do not need to be fixed at a certain position, which is convenient for different leaders to make speeches or arrange different meeting modes.
The small conference room is also close to the cabinet, and there are relatively many signal interferences. The UR-222D receiver adopts dual antenna diversity reception. The receiver can intelligently select an antenna connection with strong signal to ensure stable operation of the equipment.
The conference room and the command hall may be used at the same time. In order to avoid conflict between the two, a UR-111D antenna diversity wireless microphone is selected for the commander's position. The commander sometimes needs to walk in front of the big screen to plan the route to the countryside and allocate areas for the poverty relief workers. Therefore, Relacart UH-1 wireless handheld microphone is equipped. Compared with other brands of handheld microphones, the current consumption of handheld microphones is large, resulting in short endurance, Long time use may lead to muscle fatigue. The UH-1 handheld microphone is ergonomically designed, comfortable and light, and comfortable to hold in the hand. At the same time, only two AA batteries are needed to obtain a 10 hour battery life.
System composition
In this command hall scheme, the command hall adopts one CS-302 conference host, one UR-111D dual channel diversity wireless microphone host, one CS-501 chairman unit, 17 representative units, and two UH-1 wireless handheld microphones; For the small meeting room, one UR-222D dual channel diversity wireless microphone host is selected with two UD-222 desktop wireless microphone bases.
Concluding remarks
The quality and construction period of the command post project have successfully completed the use requirements of the command post staff. At the same time, we have accumulated more valuable engineering case experience.
