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Intelligent terminal alarm circuit

A terminal and circuit technology, which is applied in the field of single sound source/single or multi-light source combined sound/optical signal generation, can solve problems such as rising prices and increasing raw material costs, reducing driving power requirements and saving signal generation. The effect of the circuit

Inactive Publication Date: 2012-04-11
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a specific fact that cannot be ignored, that is, the prices of both devices have increased, especially the price of self-flash LEDs is many times higher than that of ordinary LEDs! Obviously, this will increase the cost of raw materials for sound and light (alarm) devices or equipment such as single sound source and multiple light sources.

Method used

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Embodiment Construction

[0008] exist figure 1 Medium, L 1 , L 2 , L 3 It is the live wire output terminal of the three-phase four-wire AC power supply 12, L' 1 , L' 2 , L' 3 is the three-phase live wire input terminal of the phase loss judgment circuit 11, N is the zero end of the three-phase four-wire AC power supply 12, and N' is the virtual zero end of the phase loss judgment circuit 11. The negative end of the intermittent sounding buzzer F is connected to the common negative end 1, and the ordinary light-emitting diode G 1～4 The four negative terminals of 4 are all connected together and then connected to the positive terminal of the intermittent buzzer F, and the ordinary light-emitting diode G 1～4 The positive terminals of 4 are respectively connected with the group pulsating DC acousto-optic driving voltage signal source U 1～4 The positive terminal 5 in the input terminal block is connected to each other, and the three live wire output terminals L of the three-phase four-wire AC power ...

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Abstract

The invention discloses an intelligent terminal alarm circuit. A plurality of common light-emitting diodes and a clamping circuit, together with an intermittent pronunciation type buzzer, are combined together, then, under the action of a plurality of direct current acousto-optic driving voltage signal sources U, combined acousto-optic information of single sound / source single light source or single sound source / multi-light source can be produced. The invention has the advantages that a common light-emitting diode of very low price, following with the intermittent pronunciation type buzzer, is enabled to produce acousto-optic alarm information in mode of intermittent buzz sound and intermittent flashing light emission, the acousto-optic alarm information is necessary for various acousto-optic alarm equipment and devices, so that for the equipment and devices, extra expense in material cost due to purchase of auto-flashing type light-emitting diodes of very high price can be saved.

Description

technical field [0001] The present invention relates to the generation of single sound source / single or multi-light source combined sound / light (alarm) signal, especially allows single or more ordinary light-emitting diodes and an intermittent sounding buzzer in the auditory aspect to be controlled by a single channel Or multi-channel (single or multiple) information sources are driven to send out the same flashing visual light information as the self-flashing light-emitting diodes. Background technique [0002] For devices or equipment designed to use only one buzzer plus one or more signal lamps to serve as sound and light (alarm) output functions, in order to increase the auditory and visual attention effects, the conventional practice It is to apply the continuous original DC driving voltage signal to the buzzer of the auditory sound signal generation device and the light-emitting diode of the visual light signal generation device, and then let them emit buzzer intermitt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B7/06G08B21/00
Inventor 朱春耕
Owner ZHEJIANG NORMAL UNIVERSITY
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