CN201681451U - Full-digital electroacoustic alarm - Google Patents
Full-digital electroacoustic alarm Download PDFInfo
- Publication number
- CN201681451U CN201681451U CN2009202172967U CN200920217296U CN201681451U CN 201681451 U CN201681451 U CN 201681451U CN 2009202172967 U CN2009202172967 U CN 2009202172967U CN 200920217296 U CN200920217296 U CN 200920217296U CN 201681451 U CN201681451 U CN 201681451U
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- warning horn
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Abstract
The utility model discloses a full-digital electroacoustic alarm, which is applied to broadcasting civil air defense warnings and comprises a power module, a distribution board, a display module, a power amplifying module, a control module and a loudspeaker connected with the power amplifying module. The distribution board is respectively electrically connected with the display module, the control module and the power amplifying module to be in bidirectional data transmission, and electrically connected with the power module to be in bidirectional transmission of electric signals and data signals, and the display module is electrically connected with the control module to be in data transmission. The control module adopts software programming control, greatly increases purity and signal-to-noise ratio of warning sound signals, can change the warning sound signals according to requirements of users, provides a visual and convenient man-machine communication interface, reduces cost and increases efficiency of civil air defense.
Description
Technical field
The utility model relates to a kind of warning horn, particularly a kind of people's air defence electroacoustic warning horn.
Background technology
Electroacoustic air-raid alarm is an alarm sound delivery apparatus main in the present civil air defense construction work, and present electroacoustic warning horn comprises that mainly alert sound analogue signal generating circuit, volume analog regulation, working power, simulated power amplifier and parameter display module constitute.This kind design exists a lot of not enough: the alert sound simulating signal of being made of concussion and shaping circuit generation hardware, it can not satisfy the requirement of reference waveform, the degree of purity of tonequality and signal to noise ratio (S/N ratio) can be very not high yet, changing or increase alert tone signal can only finish by change hardware, cost height not only, and waste time and energy, very inconvenient; Regulate volume by volume control potentiometer, be easy to generate the fault of potentiometer loose contact,, do not have the effect of alarm if potentiometer is rotated to the volume minimum can cause the fault that alarm can not be provided when remote signal is provided simultaneously by mistake; By the analog operation power supply that transformer and current rectifying and wave filtering circuit are formed, weight is very big, and varying duty operating mode efficient is lower, and the accommodation of power supply also is rather narrow; The simulated power amplifier inefficiency is applied in people's air-defence warning's device and continues like this under the operating mode of high-power sound granting, and thermal value is big, and reliability is very poor; Employed pointer instrument or digital instrument can only show the numerical value of some parameters, and quantity of information is limited, has limited function expansion.Under the situation constantly perfect in electroacoustic warning horn standard, that customer requirements improves constantly, this technology can not satisfy the demands.
The utility model content
The utility model is for overcoming above shortcoming, and the technical issues that need to address provide that a kind of alert tone signal purity height, function can be expanded, lower-cost digital electroacoustic warning horn.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of digital electroacoustic warning horn, comprise power module, distribution plate, display module, power amplifier module, and the loudspeaker that is connected with power amplifier module, it also comprises control module, described distribution plate is electrically connected with display module, control module and power amplifier module respectively and carries out bidirectional data transfers, be electrically connected the transmitted in both directions of carrying out electric signal and data-signal with power module, display module is electrically connected with control module and carries out data transmission.
The improvement of described control module is: control module is software programming control, includes alert tone signal and produces functional module, digital volume adjusting module, audio recording function module, self-checking function module and writing function module.
The improvement of described power module is: power module comprises high power switching power supply and miniature transformer.
The improvement of described power module is: described display module is the large-screen lc Chinese-character display.
Described power amplifier module improves and is: power amplifier module is a digital power amplifier.
Further improvement of the utility model is: described each functional module is positioned at casing, mainly is furnished with large-screen lc Chinese-character display, volume adjusting button, keypad lock, microphone, power switch and each alert sound prompting button on the front panel of casing.
Owing to adopted above technical scheme, the obtained technical progress of the utility model is:
The large-screen lc Chinese-character display that the utility model adopts can make the user observe the duty and the various parameter of warning horn easily as human-computer interaction interface, intuitively function menu is operated; Adopt Switching Power Supply and miniature transformer as working power, make its each most its duty, alleviated the weight of warning horn significantly, improved power-efficient, widened the scope of application supply voltage; The application of newly-designed digital power amplifier has reduced the thermal value that produces when warning horn is worked effectively, has prolonged the serviceable life of warning horn, can also carry out more powerful expansion according to demand simultaneously.
The alert tone signal that control module produces by software programming, tonequality is pure, signal to noise ratio (S/N ratio) is high, and only needing to revise software can increase or change alert tone signal, satisfies requirements of different users; The setting of its audio recording function can be carried out recording of various audio contents, in particular cases need to be specially adapted to the voice contents such as emergency notice of loop play; The digital volume control mode that adopts, improved the reliability that alarm is provided, avoided the generation of potentiometer loose contact fault, can conveniently realize the automatic adjusting of volume when the remote control alarm is provided, the defective that the remote control alarm of having avoided the potentiometer misplace to cause can not normally be provided, it is preferential that this functional module also can be arranged to remote control, and further control is avoided manual maloperation to the adjusting of volume; The alarm record function makes each time to the near-end of warning horn or straighforward operation recording storage automatically all, for people's air-defence work's query analysis in the future provides reliable foundation; Time reporting function can carry out near-end or remote control speech chronopher as required; Self-checking function can be easily carried out near-end or remote control detects to the state of each module of warning horn.
Box typed structure is provided with, and large-screen lc Chinese-character display and each function button are arranged on the front panel, conveniently checks, is convenient to operation, has greatly saved people's air-defence work's manpower, unable input, has alleviated workload, has improved work efficiency.
Description of drawings
Fig. 1 is an electrical structure block diagram of the present utility model;
Fig. 2 is a front-panel structure synoptic diagram of the present utility model.
Wherein: 1. large-screen lc Chinese-character display, 2. each alert sound prompting button, 3. power switch, 4. volume is regulated button, 5. microphone, 6. keypad lock.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in more detail.
A kind of digital electroacoustic warning horn comprises power module, distribution plate, display module, power amplifier module, control module and the loudspeaker that is connected with power amplifier module.Distribution plate is electrically connected with display module, control module and power amplifier module respectively and carries out bidirectional data transfers, distribution plate is electrically connected the transmitted in both directions of carrying out electric signal and data-signal with power module, display module is electrically connected with control module and carries out data transmission.
Control module is software programming control, includes alert tone signal and produces functional module, digital volume adjusting function module, audio recording function module, self-checking function module and writing function module; Power module comprises high power switching power supply and miniature transformer; Display module is the large-screen lc Chinese-character display; Power amplifier module is a digital power amplifier.
Each functional module of the present utility model is positioned at casing, mainly is furnished with large-screen lc Chinese-character display 1, volume adjusting button 4, keypad lock 6, microphone 5, power switch 3 and each alert sound prompting button 2 on the front panel of casing.
Claims (5)
1. digital electroacoustic warning horn, comprise power module, distribution plate, display module, power amplifier module, and the loudspeaker that is connected with power amplifier module, it is characterized in that: also comprise control module, described distribution plate is electrically connected with display module, control module and power amplifier module respectively and carries out bidirectional data transfers, distribution plate is electrically connected the transmitted in both directions of carrying out electric signal and data-signal with power module, display module is electrically connected with control module and carries out data transmission.
2. digital electroacoustic warning horn according to claim 1, it is characterized in that: described power module comprises high power switching power supply and miniature transformer.
3. digital electroacoustic warning horn according to claim 1 is characterized in that: described display module is the large-screen lc Chinese-character display.
4. digital electroacoustic warning horn according to claim 1 is characterized in that: described power amplifier module is a digital power amplifier.
5. digital electroacoustic warning horn according to claim 1, it is characterized in that: described each functional module is positioned at casing, mainly is furnished with large-screen lc Chinese-character display, volume adjusting button, keypad lock, microphone, power switch and each alert sound prompting button on the front panel of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202172967U CN201681451U (en) | 2009-09-28 | 2009-09-28 | Full-digital electroacoustic alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202172967U CN201681451U (en) | 2009-09-28 | 2009-09-28 | Full-digital electroacoustic alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681451U true CN201681451U (en) | 2010-12-22 |
Family
ID=43346488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202172967U Expired - Lifetime CN201681451U (en) | 2009-09-28 | 2009-09-28 | Full-digital electroacoustic alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681451U (en) |
-
2009
- 2009-09-28 CN CN2009202172967U patent/CN201681451U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101222 |
|
| CX01 | Expiry of patent term |