CN1030157C - Method and device of radio communication control - Google Patents
Method and device of radio communication control Download PDFInfo
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- CN1030157C CN1030157C CN 92102790 CN92102790A CN1030157C CN 1030157 C CN1030157 C CN 1030157C CN 92102790 CN92102790 CN 92102790 CN 92102790 A CN92102790 A CN 92102790A CN 1030157 C CN1030157 C CN 1030157C
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- modulated carrier
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Abstract
The present invention relates to a wireless voice traffic control method and a device. The method comprises the following procedures: storing a voice input signal, transforming the voice input signal into a modulated carrier signal to be output, repeatedly transmitting and covering the modulated carrier signal in a predetermined area; receiving the modulated carrier signal and demodulating the modulated carrier signal into a voice output signal for alarming a driver. The device comprises a circuit, a device and a receiving device, wherein the circuit is used for transforming and storing a voice input signal; the device is used for modulating, carrying and transmitting the stored signal; the receiving device is used for receiving the modulated carrier signal and demodulating the modulated carrier signal into a speech signal which is transmitted for alarming a driver. The present invention can cause traffic control to be simple, fast and convenient and reduce traffic accidents.
Description
The present invention relates to a kind of wireless transceiver system, be meant a kind of method and apparatus of wireless traffic control especially.
Civilization progress has driven social prosperity, and everybody standard of living and taste also improve day by day, and the people of the purchase private motor car of having the ability is more and more many.More because of there not being complete mass rapid transit system at present, add the psychological factor that masses seek a life of pleasure, therefore the situation that causes the modern metropolitan cities traffic to worsen is of common occurrence.Especially often can see the driver of not clear road conditions,, sink into crag-fast awkward condition because drive accidentally to have entered in the construction or in the one-way road.More seriously cause the situation of the big traffic congestion of traffic sometimes, or because not have to note seeing that some are erected at the traffic warning notice in roadside, change about without authorization or hypervelocity consequently gets into an accident.And under present police strength condition of limited, the traffic hazard workload of every day makes police very busy, does not also find what good method to solve the complicated problem of this kind traffic at present.
Therefore, fundamental purpose of the present invention is to provide a kind of method and apparatus of radio communication control, thereby reaches the simple and direct facility of traffic control, and cuts down traffic accidents or the generation of other traffic hazards, realizes conferring benefits on society, the ideal of service society.
A kind of radio communication control method is characterized in that comprising the following step:
With the voice signal of traffic control via the conversion of A/D conversion equipment after, in the storer in the input emission device by CPU control, behind the treatment step of the traffic control voice signal that described CPU can store up store memory through amplification, D/A conversion, frequency modulation modulation, carrier oscillation, the traffic control voice signal is exported in the mode of modulated carrier, and emission repeatedly covers in the predetermined road traffic control zone; And
In the time of in vehicle sails the traffic control zone into, receive the traffic control voice signal of modulated carrier with a receiving trap of installing in the vehicle, described signal is through mixing and difference frequency, and produce an intermediate-freuqncy signal, after this signal is handled through amplification, filtering, detection, convert voice signal to, thereby inform the content of driver's traffic control again via loudspeaker output voice.
A kind of radio communication control device is characterized in that comprising: an emitter and a receiving trap that is installed in the car of being located at the roadside; Wherein, described emitter can cover the voice signal repeat its transmission of traffic control and give in the fixed traffic control zone, makes the vehicle that sails in the described traffic control zone can utilize described receiving trap, obtains the content of traffic control with voice mode; And wherein:
Described emitter comprises prime signal amplification circuit and A/D change-over circuit, converts the traffic control voice signal to digitized voice signal, includes the memory storage by CPU control, digitized voice signal can be stored; Include D/A change-over circuit and amplifying circuit, the digital signal in the memory storage can be changed into the simulating signal of amplification by CPU control; Comprise modulation and carrier oscillation circuit, make simulating signal become modulated carrier signal; Comprise radiating circuit, the modulated carrier signal repeat its transmission is covered in gives fixed traffic control zone;
Receiving trap comprises antenna in the described car, and resonance and first order high-frequency amplifier circuit can receive the modulated carrier signal that described emitter sends; Comprise mixing and local oscillation circuit, in order to become an intermediate-freuqncy signal with the modulated carrier signal difference frequency; Comprise intermediate frequency amplification filtering circuit, the intermediate-freuqncy signal of input is amplified and be filtered into narrow-band; Comprise the intermediate frequency detecting circuit, pre-amplification circuit, power amplification circuit and loudspeaker, they take out voice (audio frequency) signal from intermediate-freuqncy signal, and play back.
For more detailed clear and definite understanding is arranged for purpose of the present invention, effect and device characteristic, now lift explanation of some preferred embodiments and conjunction with figs. as back: wherein,
Fig. 1 is the synoptic diagram of preferred embodiment of the present invention.
Fig. 2 is the synoptic diagram of another preferred embodiment of the present invention.
Fig. 3 is the block flow diagram of emitter of the present invention.
Fig. 4 is the block flow diagram of receiving trap of the present invention.
Fig. 5 is the front stage circuits figure of emitter of the present invention.
Fig. 6 is the late-class circuit figure of emitter of the present invention.
Fig. 7 is a signal condition synoptic diagram of the present invention.
Fig. 8 is the front stage circuits figure of receiving trap of the present invention.
Fig. 9 is the late-class circuit figure of receiving trap of the present invention.
Figure 10 is a signal condition synoptic diagram of the present invention.
Fig. 1 is the synoptic diagram of a preferred embodiment of the present invention.As showing among the figure, the present invention includes an emitter 1 that is built in the road appropriate location, and a receiving trap 2 that is arranged in each vehicle.This emitter 1 can be imported the voice signal with warning and be stored, afterwards, exportable modulated carrier signal, repeat its transmission covers in the presumptive area (shown in imaginary line among the figure).The receiving trap of being located in the car 2 can receive this modulated carrier signal, and signal is demodulated to speech output signal, reaches the effect of driver in the caution vehicle.The caution voice can comprise: " road work ahead please a left side (right side) change to take a devious route ", perhaps " yellow (red) lamp please stop " etc.Emission of this case and method of reseptance can have multiple modulation system (as amplitude modulation, frequency modulation or radar wave etc.), below only illustrate with frequency-modulated wave.
Fig. 2 is the synoptic diagram of another preferred embodiment of the present invention.As shown in FIG., emitter 1 of the present invention can be built up in the limit, road of highway, FM signal facing to the vehicle emission caution voice that sail highway into, make the set receiving trap of vehicle interior 2 convert this FM signal to the caution voice, note the traffic safety rule to remind the driver.The caution voice can be " please fasten the safety belt, keep a safe distance with the front and back car " or " 90 kilometers of speed limits " etc.
Fig. 3 is the block flow diagram of emitter shown in the present.As shown in FIG., this emitter 1 includes parts such as a voice signal input device 10, prime signal amplification circuit 11, A/D change-over circuit 12, voice signal storage circuit 13, CPU122, D/A change-over circuit 14, back level signal amplification circuit 15, fm modulation circuit 16, carrier oscillation circuit 162, modulating wave amplifying circuit 17, power amplification circuit 18 and emitting antenna 19 at least.Wherein, voice signal input device 10 can be microphone or phone networking, or gives audiotape and the sound-track engraving apparatus that records earlier, or has had the IC plate of audio digital signals, or the radio play machine.Prime signal amplification circuit 11 zooms into T2 with voice input signal T1.A/D change-over circuit 12 will convert digital signal T3 to through the voice signal T2 that amplifies, and can be stored in this voice storage circuit 13(through CPU122 and can be 1M-4M RAM) inside.D/A change-over circuit 14 is obtained digital signal T3 in voice storage circuit 13 after, convert a kind of modulation signal T4 to.Back level signal amplification circuit 15 is enlarged into T5 with modulation signal T4.
Voice input signal T1 also can be a kind of digital coded signal, makes this voice input signal T1 directly import CPU122 and handles, again through after the decoding voice input signal T1 being stored in this voice storage circuit 13 inside.
Fig. 4 is the block flow diagram of receiving trap of the present invention.As shown in FIG., receiving trap 2 comprises at least: parts such as receiving antenna 20, resonant circuit 21, first order high-frequency amplifier circuit 22, mixting circuit 23, local oscillation circuit 24, oscillator-amplification circuit 25, intermediate frequency amplification filtering circuit 26, intermediate frequency detecting circuit 27, pre-amplification circuit 281, power amplification circuit 282 and loudspeaker 29.Receiving antenna 20 receives the FM signal T8(that above-mentioned emitting antenna 19 sent and also can be described as modulated carrier signal) after, by first order high-frequency amplifier circuit 22 the FM signal F1 that receives is enlarged into F2.
Mixting circuit 23 in the receiving trap 2 becomes an intermediate-freuqncy signal F3 with FM signal F2 and the local oscillation signal V2 difference frequency that receives after obtaining a local oscillation signal V1 and be enlarged into the signal of V2 through oscillator-amplification circuit 25 from local oscillation circuit 24.Then, intermediate frequency amplification filtering circuit 26 is the intermediate-freuqncy signal F4 of narrow frequency with the broadband amplification filtering of intermediate-freuqncy signal F3, is interfered avoiding.Intermediate frequency detecting circuit 27 takes out voice signal F5 with intermediate-freuqncy signal F4.Voice signal F5 from loudspeaker 29 outputs, reaches the effect of reminding the driver to note traffic safety rule or road conditions message via a pre-amplification circuit 281 and a power amplification circuit 282.
Fig. 5 is the circuit diagram of the prime of emitter of the present invention.Below cooperate the signal condition synoptic diagram of Fig. 7 to explain.As shown in Figure 5, prime signal amplification circuit 11 is made up of elements such as operational amplifier OPA1 and OPA2 and capacitor, resistors.Therefore,, only be the change (shown in the T1 and T2 of Fig. 7) of amplitude voice signal T1(simulating signal) through zooming into the state of T2.A/D change-over circuit 12 is based on an IC-1, and has the function (shown in the T3 of Fig. 7) that analog voice signal T2 is converted into audio digital signals T3.SW1 is a recording operating key, and when SW1 was closed, audio digital signals T3 can be located in the IC-1 by CPU122() deposit in the voice storage circuit 13.SW2 is an operating key that repeats playback, if make the SW2 closure, the audio digital signals T3 that has been deposited in the voice storage circuit 13 can repeat to be input in the D/A change-over circuit 14, to be reduced into analog voice signal T4(shown in the T4 of Fig. 7).Back level signal amplification circuit 15 is become by element string (also) joint groups such as IC-3, mu balanced circuit 152 and electric capacity, resistors, analog voice signal T4 is enlarged into the state (shown in the T5 of Fig. 7, and T5 is a modulation signal) of T5.
Fig. 6 is the circuit diagram of the back level of emitter of the present invention.As shown in Figure 6, has a syntonizing coil L1 in the fm modulation circuit 16 among the figure, and cooperate the effect of a quartz (controlled) oscillator CRYSTAL-1, before this modulation signal T5 does not import as yet, at the emitter-base bandgap grading end of transistor Q1, produce an amplitude and equate and identical carrier oscillation frequency Tf(such as the Fig. 7 of frequency).Modulation signal T5 is the output of taking from the back level signal amplification circuit 15 of Fig. 5, behind modulation signal T5 input fm modulation circuit 16, but the FM signal T6(that modulation signal T5 and carrier oscillation frequency Tf are modulated into a constant frequency shift of amplitude mutually as shown in Figure 7).This FM signal T6 is again via the amplification of modulating wave amplifying circuit 17, and power discharging transistor Q2, and becomes a FM signal T8 that more high-power output is arranged, and covers to presumptive area via emitting antenna 19 emissions.
Fig. 8 is the circuit diagram of the prime of receiving trap of the present invention.Below cooperate the signal condition synoptic diagram of Figure 10 to explain.As shown in Figure 8, the syntonizing coil L5 in the resonant circuit 21, becomes FM signal F1 and sends into first order high-frequency amplifier circuit 22 in the obtained signal frequency of receiving antenna 20 in order to suitable adjustment resonance.First order high-frequency amplifier circuit 22 is made up of field effect transistor FET1 and a plurality of series-parallel electric capacity, resistor.Wherein syntonizing coil L6 and L7 have tuning effect, FM signal F1 can be enlarged into F2(as shown in figure 10).Local oscillation circuit 24 is by the effect of a quartz (controlled) oscillator CRYSTAL-2, at local oscillation signal of collector terminal generation of transistor Q3.The transistor Q4 of oscillator-amplification circuit 25 becomes a signal that is enlarged into V1 with this signal transition.Mixting circuit 23 utilizes field effect transistor FET2 to receive above-mentioned FM signal F2 and local oscillation signal V1, and is coupled into an intermediate-freuqncy signal F3(10.7MHz with tuner T1) person.Intermediate frequency amplification filtering circuit 26 is by the amplification of transistor Q5 and Q6, and the multiple filter effect of wave filter FL1, FL2 and FL3, and the intermediate-freuqncy signal F4(that the wideband of intermediate-freuqncy signal F3 is filtered into narrow frequency is as shown in figure 10), be interfered avoiding.
Fig. 9 is the circuit diagram of the back level of receiving trap of the present invention.As shown in FIG., intermediate frequency detecting circuit 27 is based on the IF detecting circuit, with the intermediate-freuqncy signal F4(10.7MHz of narrow frequency) go back to into tuning signal F5(as shown in figure 10).This voice signal F5 by loudspeaker 29 outputs, thereby reaches the effect of reminding the driver to note traffic safety rule or road conditions message again via pre-amplification circuit 281 and power amplification circuit 282.
As shown in the above description, the present invention utilizes emitter to convert voice input signal to the speech frequency signal, lay equal stress on cover emission and cover in the presumptive area after, when vehicle is regional through this, can receive this FM signal via the receiving trap in the car, and convert speech output signal to, thereby warning drivers is to reach the effect of traffic control or management.Have the police strength of saving, alleviate police's burden, and can replace unconspicuous traffic sign, or help dysphotia person to understand advantages such as road conditions with voice.
Claims (7)
1, a kind of radio communication control method is characterized in that comprising the following step:
With the voice signal of traffic control via the conversion of A/D conversion equipment after, in the storer in the input emission device by CPU control, behind the treatment step of the traffic control voice signal that described CPU can store up store memory through amplification, D/A conversion, frequency modulation modulation, carrier oscillation, the traffic control voice signal is exported in the mode of modulated carrier, and emission repeatedly covers in the predetermined road traffic control zone; And
In the time of in vehicle sails the traffic control zone into, receive the traffic control voice signal of modulated carrier with a receiving trap of installing in the vehicle, described signal is through mixing and difference frequency, and produce an intermediate-freuqncy signal, after this signal is handled through amplification, filtering, detection, convert voice signal to, thereby inform the content of driver's traffic control again via loudspeaker output voice.
2, radio communication control method as claimed in claim 1; The traffic control voice signal that it is characterized in that described modulated carrier can be FM signal, amplitude-modulated signal or radar wave signal.
3, radio communication control method as claimed in claim 1; The voice signal that it is characterized in that described traffic control can be through the step of a prime signal amplification before the A/D conversion; After the D/A conversion, comprise the step that level is amplified after.
4, radio communication control method as claimed in claim 1; It is characterized in that difference frequency becomes an intermediate-freuqncy signal with a local oscillation signal mixing of receiving trap for the traffic control voice signal of modulated carrier when receiving.
5, a kind of radio communication control device is characterized in that comprising: an emitter and a receiving trap that is installed in the car of being located at the roadside; Wherein, described emitter can cover the voice signal repeat its transmission of traffic control in the predetermined traffic control zone, makes the vehicle that sails in the described traffic control zone can utilize described receiving trap, obtains the content of traffic control with voice mode; And wherein:
Described emitter comprises prime signal amplification circuit and A/D change-over circuit, converts the traffic control voice signal to digitized voice signal, includes the memory storage by CPU control, digitized voice signal can be stored; Include D/A change-over circuit and amplifying circuit, the digital signal in the memory storage can be changed into the simulating signal of amplification by CPU control; Comprise modulation and carrier oscillation circuit, make simulating signal become modulated carrier signal; Comprise radiating circuit, the modulated carrier signal repeat its transmission is covered in gives fixed traffic control zone;
Receiving trap comprises antenna in the described car, and resonance and first order high-frequency amplifier circuit can receive the modulated carrier signal that described emitter sends; Comprise mixing and local oscillation circuit, in order to become an intermediate-freuqncy signal with the modulated carrier signal difference frequency; Comprise intermediate frequency amplification filtering circuit, the intermediate-freuqncy signal of input is amplified and be filtered into narrow-band; Comprise the intermediate frequency detecting circuit, pre-amplification circuit, power amplification circuit and loudspeaker, they take out voice (audio frequency) signal from intermediate-freuqncy signal, and play back.
6, radio communication control device as claimed in claim 5; Wherein, described emitter can utilize voice signal input device to obtain the voice signal of traffic control, described voice signal input device can be microphone or phone networking, or audiotape that records in advance and sound-track engraving apparatus, or has had the IC plate of audio digital signals.
7, radio communication control device as claimed in claim 5; Wherein, include a local oscillation circuit in the described receiving trap, described local oscillation circuit makes it import in the mixting circuit through oscillator-amplification circuit in order to produce local oscillation signal, and described mixting circuit then becomes an intermediate-freuqncy signal with FM signal and the local oscillation signal difference frequency that receives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102790 CN1030157C (en) | 1992-04-24 | 1992-04-24 | Method and device of radio communication control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102790 CN1030157C (en) | 1992-04-24 | 1992-04-24 | Method and device of radio communication control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1078055A CN1078055A (en) | 1993-11-03 |
| CN1030157C true CN1030157C (en) | 1995-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92102790 Expired - Fee Related CN1030157C (en) | 1992-04-24 | 1992-04-24 | Method and device of radio communication control |
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| Country | Link |
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| CN (1) | CN1030157C (en) |
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| JP2009151716A (en) * | 2007-12-21 | 2009-07-09 | Kenwood Corp | Road traffic information providing system, road traffic information providing device, and road traffic information providing method and program |
| JP2009151720A (en) * | 2007-12-21 | 2009-07-09 | Kenwood Corp | System, apparatus, method and program for providing road traffic information |
| CN103825625A (en) * | 2012-11-16 | 2014-05-28 | 李彬 | Wireless audio transmitting and receiving device |
| CN105100736A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Smart home voice-video comprehensive acquisition device |
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| CN105093953A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Intelligent household wireless induction type bracelet voice acquisition apparatus |
| CN105223816A (en) * | 2015-08-31 | 2016-01-06 | 成都科创城科技有限公司 | A kind of harvester adopting the Smart Home energy mix of mobile bracelet to power |
| CN105093955A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Voice instruction acquisition system of intelligent household ecological system |
| CN105093957A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Intelligent household infrared module employing bracelet |
| CN105137794A (en) * | 2015-08-31 | 2015-12-09 | 成都科创城科技有限公司 | Receiving end of voice collection device for smart home centralized control system |
| CN105100734A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Smart audio video mixed acquisition device adopting wireless induction charging wristband |
| CN105093954A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Intelligent household wireless induction type bracelet type voice acquisition apparatus employing hybrid energy |
| CN105137797A (en) * | 2015-08-31 | 2015-12-09 | 成都科创城科技有限公司 | Smart home ecological system with multiple voice signal collection devices |
| CN105187284A (en) * | 2015-08-31 | 2015-12-23 | 成都科创城科技有限公司 | Intelligent household audio-video hybrid collection device adopting mobile bracelet |
| CN105186666A (en) * | 2015-08-31 | 2015-12-23 | 成都科创城科技有限公司 | Infrared voice control module for smart home |
| CN105182771A (en) * | 2015-08-31 | 2015-12-23 | 成都科创城科技有限公司 | Bracelet voice order collection device of intelligent household system employing hybrid energy |
-
1992
- 1992-04-24 CN CN 92102790 patent/CN1030157C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1078055A (en) | 1993-11-03 |
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