CN201742554U - Traffic guidance wireless active speaker - Google Patents
Traffic guidance wireless active speaker Download PDFInfo
- Publication number
- CN201742554U CN201742554U CN2010202794991U CN201020279499U CN201742554U CN 201742554 U CN201742554 U CN 201742554U CN 2010202794991 U CN2010202794991 U CN 2010202794991U CN 201020279499 U CN201020279499 U CN 201020279499U CN 201742554 U CN201742554 U CN 201742554U
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- circuit
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- wireless active
- traffic guidance
- audio amplifier
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Abstract
The utility model relates to a traffic guidance wireless active speaker. The utility model aims at providing a traffic guidance wireless active speaker which is simple and convenient in use, and convenient to install, maintain and debug and can be suspended at road junctions of traffic guidance sites. The technical scheme is as follows: the traffic guidance wireless active speaker is characterized by comprising a waterproof aluminium alloy box body provided with a mounting bracket, wherein the front surface of the box body is provided with a panel; the box body is internally provided with an electric appliance component; and the bottom of the box body is provided with a receiving antenna and a power supply interface, and fixed with a protective box that is provided with an adjusting panel. The traffic guidance wireless active speaker is applicable to situations such as road junctions with crowded people and vehicles, expressway entrance, and the exits and entrances of squares with more frequent people flow.
Description
Technical field
The utility model relates to public address equipment, especially a kind of point duty wireless active audio amplifier.Be applicable to the busier occasions such as gateway, square of intersection, expressway access and the stream of people that busy people, car compile.
Background technology
The manager often utilizes traffic lights in the urban traffic control, the road surveillance, and electronic police comprises that road surface traffic police's on duty gesture is effectively managed, and has ignored the effect of sound effect system in traffic administration.As a kind of effectively auxiliary management means, command by effective voice suggestion and voice at some special occasions, do not want jaywalk and do not cross over railing and prove effective very much as trying to stop the pedestrian with high-power sound effect system.Because stream of people's vehicle flowrate big, noise in the busy crossing of urban transportation is big, the crossing distance is wide, by traffic-police's tactics of human sea direct traffic comparison difficulty and poor effect.In the more advanced developed country of city management, with stereo set combine the precedent that regulate the traffic with environmental sanitation or security work with Britain with regard to useful picture pick-up device as Singapore, when seeing the someone in video camera, administrative staff think jaywalk or littering, or during the illegal crime of thief, frighten resistance or remind by the sound effect system, just can stop and try to stop existing breaking rules and regulations or crime effectively.This is a kind of efficient, time saving and energy saving auxiliary management means, however in the domestic but also not promotion and implementation of China, therefore develop the sound system that uses the suitable point duty of cover and seem very necessary.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of easy to use, installation, maintenance, debugging conveniently can hang on the point duty wireless active audio amplifier at each crossing at point duty scene.
The technical scheme that the utility model adopted is: point duty wireless active audio amplifier, it is characterized in that this audio amplifier comprises the casing of the waterproof aluminium alloy that has mounting bracket, panel is equipped with in its front, electric component is installed in the casing, and bottom half is provided with reception antenna, power interface and fixes the protection box that a band is regulated panel.
Described panel comprises the stainless steel wire web plate of wooden Speaker panel and this panel outer lining.
High pitch adjusting knob, bass adjusting knob, reverberation adjusting knob, volume adjustment knob, audio input interface and channel selection knob are housed on the described adjusting panel.
Cover plate is equipped with in the outside of described protection box.
Described electric component comprises FM wireless receiving module, pre-amplification circuit, reverberation circuit, tone circuit, promotion amplifying circuit, power amplification circuit, noise control delay circuit, frequency dividing circuit and combination loudspeaker unit, described FM wireless receiving module at first converts thereof into the tone currents signal after external antenna receives the FM wireless signal that calling set sends over, order to promoting amplifying circuit, forms the audio frequency driving signal of a more interesting to listen to voice through pre-amplification circuit, reverberation circuit and tone circuit then; Subsequent this audio frequency driving signal is divided into high pitch and bass two-way through noise control delay circuit and power amplification circuit to frequency dividing circuit more successively, converts sound wave to through high and low loud speaker respectively again and aloft propagates.
The beneficial effects of the utility model are: 1) easy to use, easy popularization, as long as there is the place of AC power just this product can be installed, need not other auxiliary equipment, and need not to dig brokenly the road surface and arrange the audio signal cable.2) product is simple in structure, practical, and calling set and FM wireless receiving module are exactly a side and the assembly in the finished product intercom in fact, can utilize ready-made product repacking.3) one or several cammander can make the point duty wireless active audio amplifier work public address that hangs on different crossings different directions, high efficiency by the different channel of the hand-held calling set of conversion.
Description of drawings
Fig. 1 is a three-dimensional outline drawing of the present utility model.
Fig. 2 is a circuit block diagram of the present utility model.
Fig. 3 is an electrical schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, present embodiment point duty wireless active audio amplifier is used with the hand-hold type calling set, the intercom that calling set is promptly conventional.This audio amplifier has the casing 9 of a waterproof aluminium alloy, and casing has mounting bracket 13, is used to hang or be fixed on busy traffic intersection, and panel 1 is equipped with in the front of casing, and panel comprises Speaker panel and the outer stainless steel wire web plate that internal layer is wooden.Whole core electric components are installed in the casing.Bottom half has reception antenna 8, power interface 11, the power supply indicator 12 that exposes, and fixes the protection box 7 that a band is regulated panel 7-1 at bottom half, and protection box can add a cover 14, prevents to drench with rain to make moist.High pitch adjusting knob 2, bass adjusting knob 3, reverberation adjusting knob 4, volume adjustment knob 5, audio input interface 6 and channel selection knob 10 are housed on the described adjusting panel.
Described cabinet wall is laid one deck sound-absorbing foam, can well reduce mixed and disorderly echo, guarantees the acoustical quality of audio amplifier.
As Fig. 2, shown in Figure 3, the electric component that is installed in the casing comprises FM wireless receiving module 101, pre-amplification circuit 102, reverberation circuit 103, tone circuit 104, promotes amplifying circuit 105, power amplification circuit 106, noise control delay circuit 107, frequency dividing circuit 108 and combination loudspeaker unit 109.In addition, form by transformer B1, rectifying tube D3～D10 and original papers such as integrated package of pressure-stabilizing IC4, IC5, IC6 as the regulator rectifier circuit of power supply, output+-60V ,+-15V and+five groups of voltages such as 8V; In order to make reverberation circuit 103 energy steady operations, installed IC in the circuit additional
7Integrated package of pressure-stabilizing is IC
3The digital reverberation integrated package provides stable independent current source.Other is all custom circuit as amplifying circuit etc.
In use, calling set and FM wireless receiving module 101 all are that Traffic Warden Subteam, Expressway Service and other departments by use department such as locality provides, and they are exactly the intercom of finished product in fact, and type and channel scope are all by the appointment of the department of use.FM wireless receiving module is exactly the mainboard of the channel knob of ining succession in the finished product intercom, and the channel knob is installed facing to regulating panel 7-1, and the utility model finished product of a targeted user has just been finished.
Operation principle of the present utility model is: when the ptt switch of pressing hand-held calling set as the cammander is propagandaed directed to communicate, the sound of propagandaing directed to communicate converts the FM radio wave to by calling set and passes through the transmission antennas transmit of calling set to aerial, at this moment reception antenna 8 of the present utility model converts the tone currents signal to after receiving behind this FM wireless signal and amplifying through 101 frequency conversions of FM wireless receiving module, this tone currents signal sequence amplifies through pre-amplification circuit 102, deliver to after the high bass of the audio frequency of reverberation circuit 103 reverberation processing and tone circuit 104 is handled and promote amplifying circuit 105, at this moment formed the audio frequency driving signal of a more interesting to listen to voice; Subsequent this audio frequency driving signal is delivered to frequency dividing circuit 108 successively again and is divided into high pitch and bass two-way after noise control delay circuit 107 delay process (mainly being to remove calling set button noise) and power amplification circuit 106 amplifications, one the road to high pitch loudspeaker, another road is to woofer, and high and low sound loud speaker becomes directorial tone currents conversion of signals acoustic signals to see through Loudspeaker panel to airborne spread.
The cammander can be switched transmitting channel by the channel switch that rotates hand-held calling set; The utility model also can come the conversion receiving channels by regulating the channel selection knob, volume adjustment knob is used to change the power output of sound, high pitch adjusting knob and bass adjusting knob are used to regulate tone color, the reverberation adjusting knob is used to regulate tamber parameters such as high bass reverberation, to reach optimum Working of the present utility model.
Claims (5)
1. point duty wireless active audio amplifier, it is characterized in that: this audio amplifier comprises the casing (9) of the waterproof aluminium alloy that has mounting bracket (13), panel (1) is equipped with in its front, electric component is installed in the casing, and bottom half is provided with reception antenna (8), power interface (11) and fixes the protection box (7) that a band is regulated panel (7-1).
2. point duty wireless active audio amplifier according to claim 1 is characterized in that: described panel (1) comprises the stainless steel wire web plate of wooden Speaker panel and this panel outer lining.
3. point duty wireless active audio amplifier according to claim 1 is characterized in that: high pitch adjusting knob (2), bass adjusting knob (3), reverberation adjusting knob (4), volume adjustment knob (5), audio input interface (6) and channel selection knob (10) are housed on the described adjusting panel (7-1).
4. according to claim 1 or 3 described point duty wireless active audio amplifiers, it is characterized in that: cover plate (14) is equipped with in the outside of described protection box (7).
5. point duty wireless active audio amplifier according to claim 1, it is characterized in that: described electric component comprises FM wireless receiving module (101), pre-amplification circuit (102), reverberation circuit (103), tone circuit (104), promote amplifying circuit (105), power amplification circuit (106), noise control delay circuit (107), frequency dividing circuit (108) and combination loudspeaker unit (109), described FM wireless receiving module (101) at first converts thereof into the tone currents signal after external antenna (8) receives the FM wireless signal that calling set sends over, order is through pre-amplification circuit (102) then, reverberation circuit (103) and tone circuit (104) form the audio frequency driving signal of a more interesting to listen to voice to promoting amplifying circuit (105); Subsequent this audio frequency driving signal is divided into high pitch and bass two-way through noise control delay circuit (107) and power amplification circuit (106) to frequency dividing circuit (108) more successively, converts sound wave to through high and low loud speaker respectively again and aloft propagates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202794991U CN201742554U (en) | 2010-07-30 | 2010-07-30 | Traffic guidance wireless active speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202794991U CN201742554U (en) | 2010-07-30 | 2010-07-30 | Traffic guidance wireless active speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201742554U true CN201742554U (en) | 2011-02-09 |
Family
ID=43557833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202794991U Expired - Fee Related CN201742554U (en) | 2010-07-30 | 2010-07-30 | Traffic guidance wireless active speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201742554U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843623A (en) * | 2011-10-09 | 2012-12-26 | 南通天华和睿科技创业有限公司 | Portable mini loudspeaker box |
-
2010
- 2010-07-30 CN CN2010202794991U patent/CN201742554U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843623A (en) * | 2011-10-09 | 2012-12-26 | 南通天华和睿科技创业有限公司 | Portable mini loudspeaker box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20130730 |