Digital sound column installed on concrete pole

A cement pole and digital technology, applied in the direction of frequency/direction characteristic device, cooling/ventilation/heating transformation, etc., can solve the problems of high heat detection, internal circuit damage of the sound column, etc., to avoid excessive temperature and avoid The effect of excessive temperature inside the sound column

CN107547969AInactive Publication Date: 2018-01-05CHENDU STAR XINHUI TEL COMMAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-01-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a digital sound column installed on a cement electric pole, which comprises a cuboid-shaped outer casing (1) and an internal circuit, the front of the outer casing (1) is provided with a speaker, and the outer The back of the housing (1) is provided with heat dissipation louvers (2), the top of the external housing (1) is provided with an antenna device, and the bottom of the external housing (1) is provided with cooling holes; the internal circuit includes an audio control unit and Heat dissipation control unit; the audio control unit includes a first controller and a power amplifier; the heat dissipation control unit includes a temperature sensor, a second controller, and a heat dissipation fan; the heat dissipation fan is arranged at a position corresponding to the heat dissipation hole. The digital sound column of the invention is suitable for an emergency broadcasting system, and realizes audio playback control and heat dissipation control.
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Description

technical field

[0001] The invention relates to the field of emergency broadcasting systems, in particular to a digital sound column installed on a cement pole. Background technique

[0002] When encountering public emergencies or special events, the command personnel need to use the broadcast system for emergency broadcasting to implement emergency command and information release. In the traditional emergency broadcasting system, the commander needs to enter the broadcasting room to turn on the broadcasting equipment before broadcasting. Due to the low efficiency of this emergency broadcast system, it is easy to delay the best time to deal with emergency events, so people began to seek remote control of the emergency broadcast system. When remotely controlling the emergency broadcast system, even if the commander is far away from the incident, the emergency broadcast system can be activated as soon as the incident occurs, so as to carry out emergency command and informatio...

Examples

Embodiment Construction

[0018] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0019] Such as figure 1 As shown, a digital sound column installed on a cement pole includes an external housing 1 and an internal circuit. The front of the external housing 1 is provided with a speaker, and the back of the external housing 1 is provided with a heat dissipation Louvers 2, the top of the outer casing 1 is provided with an antenna device, the bottom surface of the outer casing 1 is provided with cooling holes, and both sides of the outer casing 1 are provided with cooling grooves 4; There are two installation hooks 3; the internal circuit includes an audio control unit and a heat dissipation control unit;

[0020] Such as figure 2 As shown, the audio control unit includes a first controller and a power amplifier, the input...