CN107592175A - A kind of voice is met an urgent need persuasion system - Google Patents
A kind of voice is met an urgent need persuasion system Download PDFInfo
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- CN107592175A CN107592175A CN201710743593.4A CN201710743593A CN107592175A CN 107592175 A CN107592175 A CN 107592175A CN 201710743593 A CN201710743593 A CN 201710743593A CN 107592175 A CN107592175 A CN 107592175A
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- radio station
- voice
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- signal
- field strength
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Abstract
The present invention proposes a kind of emergent persuasion system of voice, including FM transmission module, strong sound case and power amplifier, the FM transmission module includes modulator, transmitter and memory, the modulator is used for the field strength in the radio station quantity and each radio station searched for automatically in predeterminable area, and field strength corresponding to radio station and the radio station is stored in into memory；The power amplifier is used to be decoded into audio signal to optical fiber transmission signal, and is respectively sent to strong sound case and modulator；The modulator is additionally operable to modulates audio signals into the radiofrequency signal that can be covered each by field strength corresponding to each radio station, and each radiofrequency signal is sent to transmitter；The radio system transmitting radiofrequency signal that the transmitter is used for into predeterminable area.The present invention can be dredged effectively, and multi-faceted can be broadcasted by all kinds of means, there is provided quickly evacuate information.
Description
Technical field
The present invention relates to strong acoustic communication field, more particularly to a kind of voice is met an urgent need persuasion system.
Background technology
Existing to be installed on highway, the strong horn on square, sound pressure level is high, and sound transmittable hundreds of to one is public
In, therefore be generally used for the progress road surface when spring transportation, snow disaster, traffic accident etc. are live and dredge, delivered the information to by the broadcast of strong sound
Driver or personnel, but noise external during due to running car is larger, is difficult to catch in compartment, and strong sound case hair
For the sound gone out after automobile leaves 100m, sound is with regard to less and less, and strong sound case interval setting is larger, therefore transmits effect
It is often bad, it is often necessary in the outlet of road, the outlet on square etc. by artificial commander, to be regarded if being equipped with existing expressway
Frequency monitors, and strong horn of being arranged in pairs or groups again by video monitoring transmits sound to driver, is provided preferably for the commander of commanding
Help, but this method still exists due to distance, noise or sound insulation etc. for the driver and personnel that needs are commanded
The reason for cause the uppick voice broadcast service that it can not be accurately and timely, it is therefore usually still crowded at congestion, can not still mitigate
The workload of staff.
The content of the invention
The present invention proposes that one kind is effectively dredged, and multi-faceted can carry out evacuation voice broadcast service by all kinds of means, it is ensured that is led to
Know personnel can timely and effectively uppick information, improve commander's efficiency of commanding and mitigate its workload, improve traffic
The emergent persuasion system of the voice of safety.
The technical proposal of the invention is realized in this way：
A kind of voice is met an urgent need persuasion system, including FM transmission module, strong sound case and power amplifier, the FM transmission module
Including modulator, transmitter and memory, the modulator is used for the radio station quantity searched for automatically in predeterminable area and each electricity
The field strength of platform, and field strength corresponding to radio station and the radio station is stored in memory；The power amplifier is used to transmit signal solution to optical fiber
Code is respectively sent to strong sound case and modulator into audio signal；The modulator is additionally operable to modulates audio signals into can
The radiofrequency signal of field strength corresponding to each radio station is covered each by, and each radiofrequency signal is sent to transmitter；The transmitter
Launch radiofrequency signal for the radio system into predeterminable area.
A kind of voice provided by the invention is met an urgent need persuasion system, and automatic search radio station and field strength are carried out by modulator, then
Audio signal is modulated, is modulated into the radiofrequency signal that can be covered each by field strength corresponding to each radio station as by radio station original
Come signal can mandatory covering radiofrequency signal, launched by transmitter to radio system metapedes to cover the original letter in the radio station
Number, and the audio signal while transmission to strong sound broadcast that decode simultaneously play out, therefore run into emergency or needs
, it is necessary to which the signal of broadcast can be played out by the broadcast of strong sound when being dredged, strong sound case can play prompting when broadcasting
Drivers turn on the content of radio；And the signal for needing to broadcast can also pass through in addition to being played out in strong sound case
Modulator is sent by transmitter again after being modulated, the mandatory covering original signal in radio station, so as to rapid in time
Play emergent broadcast information.The present invention by simultaneously use strong sound case and FM transmission technology, that is, realize quick broadcast,
And can is enough realized notifies result in place to the personnel of the overwhelming majority, the demand dredged effect, reduce evacuation personnel greatly improved,
Reduce evacuation cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of system block diagram of the emergent persuasion system of voice of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Preferably, the emergent persuasion system of a kind of voice, including FM transmission module, strong sound case 3 and power amplifier 2, the tune
Frequency transmitter module includes modulator 4, transmitter 5 and memory 6, and the modulator 4 is used for the electricity searched for automatically in predeterminable area
Number of units amount and the field strength in each radio station, and field strength corresponding to radio station and the radio station is stored in memory 6；The power amplifier 2 is used for
Audio signal is decoded into optical fiber transmission signal, and is respectively sent to strong sound case 3 and modulator 4；The modulator 4 is additionally operable to
By modulates audio signals into the radiofrequency signal that can be covered each by field strength corresponding to each radio station, and by each radiofrequency signal send to
Transmitter 5；The radio system transmitting radiofrequency signal that the transmitter 5 is used for into predeterminable area.
Preferably, the radiofrequency signal of the modulators modulate is bigger at least 10dBu than field strength corresponding to each radio station.In this hair
The bright middle radiofrequency signal used is more than at least 10dBu for optimal selection than the field strength in the radio station under the corresponding frequency, certainly
It can also using it is other it is smaller by the way of, but be greater than 10dBu and can then ensure that emergent broadcast voice signal passes through
Signal after modulation amplification is enough to cover original signal, thereby may be ensured that driver can be in time in the case where opening radio reception
Clearly receive broadcast message.
Preferably, emergent persuasion system provided by the invention can be installed on the electric wire thick stick of highway, or square
On the electric pole on periphery, multiple mounting boxs are segmented into for convenience of installing and managing, such as modulator 4 can be arranged at one
Individual mounting box, transmitter 5 is arranged at another mounting box, while the power amplifier 2 for promoting strong sound case 3 is positioned over another installation
In box, its certain not limited to this mode.Generally on expressway, the quantity in the clearly radio station obtained by radio is often not
More than ten, therefore modulator can be covered mainly for the signal in clearly radio station, and its adjustable makes multiple signals
Sent respectively by transmitter again.
Preferably, the power amplifier 2 also includes voice decoder 1, and the voice decoder 1 is used to transmit signal solution to optical fiber
Code is into audio signal.
Preferably, the predeterminable area is 5~10 kilometers of regions.Its certain not limited to this, based on transmission power and radio station
When the factor of field strength distance and its energy size, strong sound case 3 are more remote from the object being broadcasted, required transmission power
It is bigger, resident's radio reception on highway periphery can be influenceed if transmission power on a highway is too strong, and transmitter 5 is with being broadcasted
Object it is more remote when, its field strength is also more and more weaker, therefore in the case, transmitter module in the present invention, strong sound case 3 and power amplifier
2 are used as kit, and the setting interval region between every suit instrument is just 5~10 kilometers of regions, naturally it is also possible to and it is more dense,
If minimum can be that spacing distance is 1 km.
Preferably, the modulator 4 also includes automatic search module, for the radio station quantity searched for automatically in predeterminable area
And the field strength in each radio station.
Preferably, the optical fiber transmission signal includes the multiple signals of one or more；When the optical fiber that control centre provides
When transmitting the multiple signals that signal is one or more, decoder then can be directed to one or the multiple signals of the above are solved
Code, mode optimal in the present invention is two-way, wherein being that the signal broadcasted by strong sound case reminds car owner that opening is received all the way
Sound machine can timely broadcast listening, be then all the way in addition car owner open radio after institute's uppick on road conditions implementation believe
Breath, the method can avoid spacing distance of the car owner in road traveling due to carousel, and strong sound case is far and near different and causes to listen not
Go out the situation of clear strong sound case broadcast information；Certainly when optical fiber transmission signal is all the way, then it can be decoded by decoder
Afterwards, strong sound case wheel streaming reminds car owner's unlatching radio and traffic information to carry out real-time broadcasting and also may be used.
Voice provided by the invention is met an urgent need persuasion system, and when in use, idle modulator 4 passes through automatic search module first
The radio station quantity searched in the range of its responsible predeterminable area, its frequency searched for can be preset as needed, just
At present in 88~108M of broadcast transmission frequency interval ranges, on the periphery of each signal transmitting tower, the power of its signal respectively has not
Together, therefore the quantity in radio station that can clearly be searched out in radio reception of driver is also limited, be generally only capable of searching out ten it is more visible
Main radio station, by can then come out main broadcasting station search after automatic search module search, while also need to search for
Field strength corresponding to the radio station, during so as to later stage modulated signal, targetedly for the radio station under each frequency range field strength it is big
It is small to be modulated the radiofrequency signal bigger than its signal.When running into emergency and needing to send emergent broadcast information, then optical fiber
Signal carries out decoding by voice decoder 1 first and obtains to be destined to all the way after audio signal to promote the power amplifier of strong sound case 3
2, another way audio signal then sends modulator 4 to and is modulated out multiple signals, and the signal after ovennodulation is again by transmitting
Device 5 is launched, and then broadcast notifies that car owner opens radio broadcast listening to strong sound case 3, and radio then will be by transmitter
The radiofrequency signal of transmitting, traffic real-time information can in time be broadcasted, effectively dredged.Due to provided by the invention
The spacing distance that system is set is moderate, therefore next system also can be rapidly entered even if when vehicle sails out of current region
Unite in the regional extent being responsible for, so as to which broadcast message will not be missed.
Voice of the present invention persuasion system of meeting an urgent need can operate with large-scale square, or on highway, its can avoid because
Noise broadcasts the extremely faint situation of effect away from too far away, greatly improves the effect of evacuation, easy to operate, uses
It is extremely wide.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (6)
- The persuasion system 1. a kind of voice is met an urgent need, it is characterised in that including FM transmission module, strong sound case and power amplifier, the tune Frequency transmitter module includes modulator, transmitter and memory, and the modulator is used for the radio station number searched for automatically in predeterminable area Amount and the field strength in each radio station, and field strength corresponding to radio station and the radio station is stored in memory；The power amplifier is used for optical fiber Transmission signal is decoded into audio signal, and is respectively sent to strong sound case and modulator；The modulator is additionally operable to believe audio Number the radiofrequency signal that can be covered each by field strength corresponding to each radio station is modulated into, and each radiofrequency signal is sent to transmitter； The radio system transmitting radiofrequency signal that the transmitter is used for into predeterminable area.
- The persuasion system 2. a kind of voice as claimed in claim 1 is met an urgent need, it is characterised in that the radio frequency letter of the modulators modulate It is number bigger at least 10dBu than field strength corresponding to each radio station.
- The persuasion system 3. a kind of voice as claimed in claim 1 is met an urgent need, it is characterised in that the power amplifier also includes voice codec Device, the voice decoder are used to be decoded into audio signal to optical fiber transmission signal.
- The persuasion system 4. a kind of voice as claimed in claim 1 is met an urgent need, it is characterised in that the predeterminable area is 5~10 public In region.
- The persuasion system 5. a kind of voice as claimed in claim 1 is met an urgent need, it is characterised in that the modulator also includes searching automatically Rope module.
- The persuasion system 6. a kind of voice as claimed in claim 1 is met an urgent need, it is characterised in that the optical fiber transmission signal includes one Individual or more multiple signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743593.4A CN107592175A (en) | 2017-08-25 | 2017-08-25 | A kind of voice is met an urgent need persuasion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743593.4A CN107592175A (en) | 2017-08-25 | 2017-08-25 | A kind of voice is met an urgent need persuasion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107592175A true CN107592175A (en) | 2018-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710743593.4A Pending CN107592175A (en) | 2017-08-25 | 2017-08-25 | A kind of voice is met an urgent need persuasion system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201708805U (en) * | 2010-06-08 | 2011-01-12 | 上海东方明珠广播电视研究发展有限公司 | Multi-frequency point frequency-modulating and retransmitting equipment |
| CN203070537U (en) * | 2013-01-14 | 2013-07-17 | 胡建国 | Traffic sign wireless broadcasting system |
| CN104052559A (en) * | 2013-12-31 | 2014-09-17 | 许春香 | Sudden-onset disaster emergency wireless public broadcast system |
| EP2884680A1 (en) * | 2013-12-14 | 2015-06-17 | Alpine Electronics, Inc. | Broadcast receiver |
| CN205883267U (en) * | 2016-08-10 | 2017-01-11 | 李静 | FM broadcasting automatic reception ware |
-
2017
- 2017-08-25 CN CN201710743593.4A patent/CN107592175A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201708805U (en) * | 2010-06-08 | 2011-01-12 | 上海东方明珠广播电视研究发展有限公司 | Multi-frequency point frequency-modulating and retransmitting equipment |
| CN203070537U (en) * | 2013-01-14 | 2013-07-17 | 胡建国 | Traffic sign wireless broadcasting system |
| EP2884680A1 (en) * | 2013-12-14 | 2015-06-17 | Alpine Electronics, Inc. | Broadcast receiver |
| CN104052559A (en) * | 2013-12-31 | 2014-09-17 | 许春香 | Sudden-onset disaster emergency wireless public broadcast system |
| CN205883267U (en) * | 2016-08-10 | 2017-01-11 | 李静 | FM broadcasting automatic reception ware |
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Application publication date: 20180116 |