CN201032715Y

CN201032715Y - Acoustics system for automobile capable of automatic regulation optimum receiving frequency

Info

Publication number: CN201032715Y
Application number: CNU2006201734893U
Authority: CN
Inventors: 陈威元
Original assignee: YULON NISSAN MOTORS CO Ltd
Current assignee: YULON NISSAN MOTORS CO Ltd
Priority date: 2006-12-27
Filing date: 2006-12-27
Publication date: 2008-03-05
Anticipated expiration: 2016-12-27

Abstract

The utility model relates to an auto-regulative automotive sound system for listening to the frequency, and the utility model comprises a control module, a memory module, a first tuner and an inspection module. The frequency comparison table is stored in the memory module, and the preset frequency of the broadcasting channel is recorded; the radio signal is demodulated by the first tuner according to the prior frequency; the inspection module is utilized for inspecting the detection signal which is utilized by the control module to decide to change the channel or not. When the detection signals are received, the optimum frequency between the preset frequencies and prior frequencies of the broadcasting channel is judged by the control module, and the first tuner is controlled to demodulate the radio signals according to the optimum frequency.

Description

Automatically adjust the suitableeest automobile-used sound system of listening to frequency

Technical field

The utility model relates to a kind of sound system, particularly relates to the suitableeest automobile-used sound system of listening to frequency of a kind of automatic adjustment.

Background technology

Consult Fig. 1, existing automobile-used sound system 9 has operation-interface 91, tuner (Tuner) 92, amplifier 93 and loud speaker 94, wherein operation-interface 91 is for user's manual adjustment, selecting frequency whereby, because each broadcasting channel all has its corresponding preset frequency, when the user chooses preset frequency, tuner 92 could demodulate corresponding program signal according to preset frequency, is play by amplifier 93 amplifying signals and loud speaker 94 again.

Yet each broadcasting channel is the different frequency of (the north, middle part, south) employing in different areas, and thus, car if the transregional frequency that just needs to switch the locality is arranged, otherwise can cause the not good situation of received signal quality in long-distance process of advancing.

The utility model content

Because the user is in the process of driving, transregionally just need very bother at the frequency of regional manual switchover locality if having.

Therefore, the purpose of this utility model provides a kind of automatic judgement to be adjusted to the suitableeest automobile-used sound system of listening to frequency.

So the utility model is adjusted the suitableeest automobile-used sound system of listening to frequency automatically and is comprised control module, memory module, first tuner and detection module.

Control module is used to coordinate each element running; Memory module couples control module, and the storing frequencies table of comparisons, the frequency table of comparisons write down the preset frequency of broadcasting channel at least; First tuner couples control module, is according to present frequency demodulation broadcast singal.

Detection module couples control module, is used to detect for control module whether determine the detection signal of switching frequency; After control module was received detection signal, which was the suitableeest frequency of listening to for the preset frequency of judgement broadcasting channel and present frequency, and controlled first tuner according to the suitableeest frequency demodulation broadcast singal of listening to.

Can send detection signal by detection module of the present utility model and whether determine switching frequency for control module, after control module is received detection signal, which is the suitableeest frequency of listening to for the preset frequency of judgement broadcasting channel and present frequency, and control first tuner according to the suitableeest frequency demodulation broadcast singal of listening to, reach optimum audibility whereby.

Description of drawings

Below by optimum embodiment and accompanying drawing the suitableeest automobile-used sound system of listening to frequency of automatic adjustment of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is a system block diagrams, and the element that existing automobile-used sound system has is described;

Fig. 2 is a system block diagrams, and the utility model the suitableeest creation notion of listening to the automobile-used sound system of frequency of adjustment automatically is described;

Fig. 3 is a system block diagrams, and the utility model the suitableeest first preferred embodiment of listening to the automobile-used sound system of frequency of adjustment automatically is described;

Fig. 4 is a system block diagrams, and the utility model the suitableeest second preferred embodiment of listening to the automobile-used sound system of frequency of adjustment automatically is described;

Fig. 5 is a system block diagrams, and the utility model the suitableeest the 3rd preferred embodiment of listening to the automobile-used sound system of frequency of adjustment automatically is described;

Fig. 6 is a flow chart, and the how construction frequency table of comparisons is described; And

Fig. 7 is a flow chart, and the utility model the suitableeest execution in step of listening to the automobile-used sound system of frequency of adjustment automatically is described.

Embodiment

About aforementioned and other technology contents, characteristics and effect of the present utility model, in following cooperation DETAILED DESCRIPTION OF THE PREFERRED with reference to the accompanying drawings, can clearly present.Before the utility model is described in detail, be noted that in the following description content similar elements is to represent with identical numbering.

Consult Fig. 2, the utility model is adjusted the suitableeest automobile-used sound system 1 of listening to frequency automatically and is comprised control module 10, detection module 11, memory module 12, transport module 13, operation-interface 14, first tuner 15, amplifier 16 and loud speaker 17.

Operation-interface 13 is for the present frequency of user's manual adjustment with notice control module 10 updated stored modules 12; Control module 10 is used to receive control command that operation-interface 13 sends and the running of coordinating each element.

Memory module 12 couples control module 10, stores the present frequency (figure does not show) and the frequency table of comparisons 121; The frequency that the present frequency person of being to use is listening at present; The frequency table of comparisons 121 can and be stored in memory module 12 via the outside certainly reception of transport module 13, and transport module 13 can be wired (as: USB) or wireless (as: blue bud) transport module.

The frequency table of comparisons 121 be the different broadcasting channels of record in the preset frequencies of each department correspondence, for example: in wide music net in the Taibei, the frequency on Keelung, the medium ground of platform is 96.3, the frequency on ground such as Yilan, Hsinchu, Miaoshu is 96.1, the rest may be inferred.Because all there is fixing latitude and longitude coordinates scope each department, so the frequency table of comparisons 121 is each broadcasting channel of record preset frequencies in the latitude and longitude coordinates scope correspondence of each department.

First tuner 15 couples control module 10, and controlled module 10 controls are with first collection of letters signal 102 of present frequency demodulation broadcast singal 101 with the generation broadcasting channel.

Creation notion of the present utility model is, detection module 11 sends detection signal 103 and whether determines switching frequency for control modules 10, after control module 10 is received detection signal 103, judge in the memory module 12 which be the suitableeest frequency of listening to for the preset frequency of broadcasting channel and present frequency, and control first tuner 15 and comply with the suitableeest frequency demodulation broadcast singal 101 of listening to.

In each preferred embodiment according to creation notion enforcement of the present utility model, the action principle of its control module 10, memory module 12, transport module 13, operation-interface 14, first tuner 15, amplifier 16 and loud speaker 17 as described above, repeat no more, below only be described, and the user is just at the broadcast listening program with regard to its difference.

Consult Fig. 3, in first preferred embodiment of the present utility model, automobile-used sound system 1 ' has global location (GPS) unit 111 whether detection needs switching frequency, be used to send framing signal 104 with location parameter, location parameter is the latitude and longitude coordinates in detected area when the locality, can be the suitableeest frequency of listening to of broadcasting channel according to the location parameter of the frequency table of comparisons 121 with the preset frequency of corresponding broadcasting channel for control module 10.

Consult Fig. 4, in second preferred embodiment of the present utility model, automobile-used sound system 1 " have second tuner 112 whether detection needs switching frequency; be used to send second collection of letters signal 105 of preset frequency; judge for control module 10 which is the suitableeest frequency of listening to of broadcasting channel for preset frequencies and present frequency; its judgment criterion is according to first collection of letters signal 102 of first tuner 15 and second collection of letters signal 105 of second tuner 112, is the suitableeest frequency of listening to signal than the powerhouse.

Its execution mode is to suppose that first tuner, 15 receive frequencies are the A frequency, and obtain A frequency signal strength information through the 15 internal circuit analyses of first tuner; Second tuner, 112 receive frequencies are the B frequency, and obtain B frequency signal strength information through the 112 internal circuit analyses of second tuner; At last, by control module 10 relatively A frequency signal intensity and B frequency signal intensity,, then do not switch as if A is identical with B frequency signal intensity if there is frequency than hard intensity then to switch to frequency than hard intensity.

Consult Fig. 5, in the 3rd preferred embodiment of the present utility model, automobile-used sound system 1 " ' detection module 11 comprise the global location unit 111 and second tuner 112, needing to determine whether switching frequency (effect repeats after holding) with the two collocation; Global location unit 111 couples control module 10, is used to export the framing signal 104 with location parameter; Controlled modules 10 controls of second tuner 112 are given control module 10 according to the preset frequency demodulation broadcast singal 101 of the frequency table of comparisons 121 to produce second collection of letters signal 105.

Consult Fig. 6, the foundation of the frequency table of comparisons 121 comprises the steps: to set up the GIS-Geographic Information System of each counties and cities, and the latitude and longitude coordinates of mark row administrative division dividing line also is linked to be a zone (step 601); Obtain the frequency (step 602) that each broadcasting channel uses in each department; Be made into the frequency table of comparisons 121 (step 603) in conjunction with counties and cities' longitude and latitude coordinate range and each broadcasting channel in the frequency of each department use; And the boundary scope of each counties and cities' longitude and latitude is got a fixed range (as 1 kilometer) be the scope (step 604) of analyte signal intensity.

Consult Fig. 5 and Fig. 7, when the user operates automobile-used sound system 1 in the area " ' when listening to broadcasting channel, suppose that first tuner 15 at that time is with present frequency demodulation broadcast singal 101, automobile-used sound system 1 " ' carry out following step:

Global location unit 111 receiving satellite positioning signals also are converted to latitude and longitude coordinates (step 701); Control module 10 is compared out the preset frequency (step 702) of broadcasting channel in the locality according to latitude and longitude coordinates from the frequency table of comparisons 121; Then, is control module 10 judged preset frequency and present frequency whether identical (step 703)? if identical, then keep with present frequency demodulation broadcast singal 101 (step 708), and process ends.

If control module 10 judges preset frequency and frequency is inequality at present, do you judge again that then latitude and longitude coordinates is positioned at the scope (step 704) of frequency exchange? if not in the scope of frequency exchange, then first tuner 15 is according to local preset frequency demodulation broadcast singal 101 (steps 705).

Do you if in the scope of frequency exchange, then judge the signal strength signal intensity whether variant (step 706) of second collection of letters signal 105 of first collection of letters signal 102 of present frequency and preset frequency? if variant, be the suitableeest frequency (step 707) of listening to than the powerhouse with signal; If indifference is then kept with present frequency demodulation broadcast singal 101 (step 708), and process ends.

Conclude above-mentionedly, whether be the detection signal 103 that sends by detection module 11 determine switching frequency for control modules 10 to the automobile-used sound system 1 of the utility model, and detection module 11 can be global location unit 111, second tuner 112 or integrate the two; After control module 10 was received detection signal 103, which was the suitableeest frequency of listening to for the preset frequency of judgement broadcasting channel and present frequency, and according to the suitableeest frequency demodulation broadcast singal of listening to, reached best audibility whereby.

Claims

1. adjust the suitableeest automobile-used sound system of listening to frequency automatically for one kind, comprise the control module and first tuner, control module is used to coordinate each element running, and first tuner couples control module, be that it is characterized in that: described automobile-used sound system also comprises according to present frequency demodulation broadcast singal:

Memory module couples control module, and the storing frequencies table of comparisons, the frequency table of comparisons write down the preset frequency of broadcasting channel at least; And

Detection module couples control module, is used to detect for control module whether determine the detection signal of switching frequency;

After control module was received detection signal, which was the suitableeest frequency of listening to for the preset frequency of judgement broadcasting channel and present frequency, and controlled first tuner according to the suitableeest frequency demodulation broadcast singal of listening to.

2. the suitableeest automobile-used sound system of listening to frequency of automatic adjustment as claimed in claim 1 is characterized in that:

Described detection module is the global location unit, and detection signal is the framing signal with location parameter, and supplying control module is the suitableeest frequency of listening to of broadcasting channel with the preset frequency according to the location parameter of the frequency table of comparisons.

3. the suitableeest automobile-used sound system of listening to frequency of automatic adjustment as claimed in claim 1 is characterized in that:

Described detection module is second tuner, and detection signal is the collection of letters signal of preset frequency, judges for control module which is the suitableeest frequency of listening to of broadcasting channel for preset frequency and present frequency.

4. the suitableeest automobile-used sound system of listening to frequency of automatic adjustment as claimed in claim 1 is characterized in that:

Described automobile-used sound system also comprises transport module, is used for from the outside receive frequency table of comparisons to be stored in memory module.

5. adjust the suitableeest automobile-used sound system of listening to frequency automatically for one kind, comprise the control module and first tuner, control module is used to coordinate each element running, and first tuner couples control module, be that it is characterized in that: described automobile-used sound system also comprises according to present frequency demodulation broadcast singal:

Memory module couples control module, and the storing frequencies table of comparisons, the frequency table of comparisons write down at least broadcasting channel in the preset frequency of each department correspondence;

Second tuner, controlled module controls is to produce second collection of letters signal of broadcasting channel according to preset frequency demodulation broadcast singal; And

The global location unit couples control module, and output has the framing signal of location parameter;

Control module is taken out preset frequency for second tuning unit demodulates according to the location parameter of framing signal from the frequency table of comparisons, and judge which is the suitableeest frequency of listening to of broadcasting channel for first collection of letters signal and second collection of letters signal, control first tuner whereby according to the suitableeest frequency demodulation broadcast singal of listening to.

6. the suitableeest automobile-used sound system of listening to frequency of automatic adjustment as claimed in claim 5 is characterized in that:

Described control module is to judge whether location parameter is positioned at the scope of frequency exchange, if in the scope of frequency exchange, control the stronger frequency demodulation broadcast singal of the first tuner basis signal.

7. the suitableeest automobile-used sound system of listening to frequency of automatic adjustment as claimed in claim 5 is characterized in that: