Network Broadcast System debugging experience

At the end of 2011 to participate in the factory-level broadcast system construction, consider the future expansion and management of the convenience of the plant, the choice of the network broadcast system, based on the DSP MAG5182 host for the core network broadcast system, in fact, the construction process and network connection process is very simple, but how to avoid the echo in the workshop is a problem, A good solution is obtained through the construction of the factory broadcast system.

the largest workshop has 500 meters long, 200 meters wide, about 15 meters high, due to the steel structure of the plant design, horizontal and vertical row are 24 meters of steel column support (basically large plant are this distance), according to the steel column spacing to determine 50 watts wall-mounted speakers, because the sound field of the wall is a fan-shaped speaker, And the sound field of the horn is cone shape, the energy is strong, easy to produce echoes, according to this speaker and designed a special wall-mounted steel plate (not detailed description of its structure), taking into account the average height of the person, the operating height of the forklift, So the wall speaker from the ground 2.5 meters, the number of speakers and layout to be based on the production line and design (the most serious, only this design to ensure that the line workers to listen best), see annex.

When debugging, be sure to note the following two points:

1, pure after-Class power amplifier debugging, the maximum power of a pure after-class amplifier: The maximum rotation scale of the pure after-class amplifier = Number of series Speaker power: should be rotated the pure after-grade amplifier scale, so that can accurately calculate the pure after-grade amplifier scale should be rotated, Avoid the current breakdown of the speaker due to the maximum power provided by the pure rear-level amplifier.

2, the whole plant of the middle speaker of the volume slightly larger (can be through the preamplifier to solve the volume problem, do not move the pure rear-level amplifier), the factory on both sides of the speaker volume adjustment, to ensure the best effect of the middle of the plant, to avoid echo.

3, the largest network broadcast system is a bit can be divided into multiple partitions, must be based on the site to partition the production line, the specific should be based on the situation of the site.

The effect is really good, the line of workers can clearly listen to the broadcast content, the above is to ensure that the effect of particularly important 3 steps.

Network Broadcast System debugging experience