CN100486264C - On-board wireless voice dialer - Google Patents
On-board wireless voice dialer Download PDFInfo
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- CN100486264C CN100486264C CNB2006100636084A CN200610063608A CN100486264C CN 100486264 C CN100486264 C CN 100486264C CN B2006100636084 A CNB2006100636084 A CN B2006100636084A CN 200610063608 A CN200610063608 A CN 200610063608A CN 100486264 C CN100486264 C CN 100486264C
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- identification code
- voice
- mcu
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- reflector
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Abstract
The related vehicle-carried wireless speech dialer comprises: an emitter with built-in identification code, and a speech host to receive and converse signal from last device into speech output, wherein when on learning state, the host receives and stores the code as self identification code; when on working state, the host processes the received signal and generates speech signal when the received signal accords with its identification code. This invention uses conveniently as full-direction emission, and free to interference.
Description
Technical field
The present invention relates to vehicle mounted communication equipment, more particularly, relate to a kind of on-board wireless voice dialer.
Background technology
On-board wireless voice dialer is mainly the driver and calls and provide convenience.The wireless speech dialer that occurs uses infrared ray as the carrier wave that transmits and receives at first, China Patent No. is: 02248794.8 patent has just disclosed a kind of on-board wireless voice dialer that uses infrared ray as carrier wave, but because infrared ray has directivity, use inconvenient, so the on-board wireless voice dialer of radio frequency occurred adopting as carrier wave, consideration for cost, the antenna dialing device great majority adopt discrete component to form radiating circuit, be not easy to control the size of transmitting power, and radio frequency has omni-directional, the dialer remote range is far away excessively like this, and other like product is caused interference.
Summary of the invention
The technical problem to be solved in the present invention is, at the above-mentioned use inconvenience of prior art and the defective that can cause interference to other like products, provides a kind of on-board wireless voice dialer that can not cause interference again to other like products easy to use.
The technical solution adopted for the present invention to solve the technical problems is: constructs a kind of on-board wireless voice dialer, comprises that the signal of reflector, the described reflector emission of reception is the voice main frame of voice signal output with this conversion of signals also, and according to the present invention,
Described reflector comprise a MCU, respectively with the radio-frequency transmissions that different I/O port is connected of described MCU part and key-press matrix, described internal identification code is stored in one section fixing in the described MCU read-only memory continuous memory space;
Described radio-frequency transmissions partly comprises radio-frequency oscillator and modulating tube, described oscillator comprises oscillating tube and SAW (Surface Acoustic Wave) oscillator, the input of described SAW (Surface Acoustic Wave) oscillator is connected on the base stage of described oscillating tube, a branch road of its output is connected on the collector electrode of described modulating tube by an electric capacity, described modulating tube collector electrode links to each other with the emitter of described oscillating tube, and the collector electrode of described oscillating tube links to each other with another branch road of described SAW (Surface Acoustic Wave) oscillator output by a LC antiresonant circuit and is connected to positive source by an inductance;
Wherein, described reflector internal identification code, the signal of its emission has this identification code; When described voice main frame is in learning state, it will receive and store the built-in identification code of described reflector as this machine identification code; When described voice main frame was in running order, when the identification code of its signal that receives was consistent with above-mentioned machine identification code, described voice main frame connects to be handled this signal and produces voice signal.
In on-board wireless voice dialer of the present invention, described identification code comprises binary number.
In on-board wireless voice dialer of the present invention, the length of described binary number comprises the 16-32 position.
In on-board wireless voice dialer of the present invention, described voice main frame comprises the 2nd MCU, the voicefrequency circuit that is connected with described the 2nd MCU, with described the 2nd MCU radio frequency receive circuit and be connected to learn button and study indicator light on different I/O port of described the 2nd MCU, triggering described learn button enters described voice main frame the identification code state to be set and to light described study indicator light, after the voice main frame was with the reflector identification code storage that receives, described study indicator light extinguished.
In on-board wireless voice dialer of the present invention, the output of described radio-frequency (RF) receiving circuit is connected on first external interrupt input of described the 2nd MCU.
Implement on-board wireless voice dialer of the present invention, have following beneficial effect: owing to used radio frequency as carrier wave, its emission has omni-directional, so it is easy to use; Again owing in reflector, added identification code, so can not be interfered with the receiver of this reflector pairing.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of on-board wireless voice dialer embodiment of the present invention;
Fig. 2 is the transmitter circuit schematic diagram of on-board wireless voice dialer embodiment of the present invention;
Fig. 3 is the voice host circuit schematic diagram of on-board wireless voice dialer embodiment of the present invention.
Embodiment
As shown in Figure 1, in on-board wireless voice dialer embodiment of the present invention, comprise the reflector of forming by a MCU1, key-press matrix 2 and radio-frequency transmissions circuit 3, the voice main frame of forming by radio-frequency (RF) receiving circuit 13, the 2nd MCU11 and sound circuit 12, wherein said reflector scans described key-press matrix 2 by a MCU1, and the key information that scanning obtains is passed through a described MCU1 handle, add the identification code that is stored in this reflector in the read-only memory in the described MCU1, launch by described radio-frequency transmissions circuit 3; And accept circuit 13 by described radio frequency, the voice main frame that the 2nd MCU11 and sound circuit 12 are formed, wherein said radio-frequency (RF) receiving circuit 13 receives the radiofrequency signal of described reflector emission, and after handling buffering, be transferred to described the 2nd MCU11, the 2nd MCU11 compares the reflector identification code in the signal that receives with the identification code that sets that is stored in wherein, if above-mentioned two identification code unanimities, the signal that then described the 2nd MCU11 output receives is to described sound circuit 12, if above-mentioned two identification code differences, then described the 2nd MCU11 can not export received signal to described sound circuit 12.
Fig. 2 is the electrical schematic diagram of above-mentioned reflector, and in Fig. 2, described radio-frequency transmissions circuit 3 comprises oscillating tube Q1 and modulating tube Q2 and a SAW (Surface Acoustic Wave) oscillator Y1; The base stage of described modulating tube Q2 is connected on the data output end DATA of a described MCU1, its grounded emitter, its collector electrode is divided into two-way, one the tunnel is connected on the emitter of above-mentioned oscillating tube Q1, another road is connected the output of above-mentioned SAW (Surface Acoustic Wave) oscillator Y1 by a capacitor C 2, and the input of SAW (Surface Acoustic Wave) oscillator Y1 is connected on the base stage of described oscillating tube Q1, simultaneously, the base stage of oscillating tube Q1 is connected the positive pole of power supply by resistance R 1, for described oscillating tube Q1 provides base bias; The collector electrode of described oscillating tube Q1 is connected an end of a LC antiresonant circuit, this LC antiresonant circuit comprises capacitor C 1 and inductance L 2, the other end of this LC antiresonant circuit is connected on the positive source by inductance L 1 filtering, and the positive source of this process inductance L 1 filtering is connected the output of described SAW (Surface Acoustic Wave) oscillator Y1 simultaneously.Described key-press matrix 3 comprises six row, four row totally 21 buttons, wherein said row comprises COLUM1-COLUM6, described row comprise LINE1-LINE4, all be connected on the different I/O port of a described MCU 1, when described MCU1 scanning key-press matrix 3, when finding that button is triggered, the one MCU1 is according to the key assignments that is triggered, find out its corresponding dateout, these data that find out are added the identification code in one section continuous read-only memory of the appointment of originally leaving an above-mentioned MCU1 in, by described data output end DATA output, deliver to the base stage of above-mentioned modulating tube Q2, modulate the radiofrequency signal that described oscillating tube Q1 and SAW (Surface Acoustic Wave) oscillator Y1 are produced as modulation signal, and the radiofrequency signal after will modulating is launched by the filtering of above-mentioned LC antiresonant circuit.
In the present embodiment, described identification code is one 16 a binary number; In actual use, when too big 16 binary numbers of described reflector quantity are distinguished inadequately, can use the more binary number of multidigit, as 32.
Fig. 3 is the electrical schematic diagram of described voice main frame, comprising the 2nd MCU11, radio-frequency (RF) receiving circuit 13 and sound circuit 4, in Fig. 3, described radio-frequency (RF) receiving circuit 13 is also not completely shown, the part of above-mentioned radio-frequency (RF) receiving circuit only is shown, the HFS that is described radio-frequency (RF) receiving circuit 13 is not shown in Fig. 3, and wherein buffering shaping unit only is shown, the output of this part is connected on first external interrupt input port (being the INTO port) of described the 2nd MCU11, described the 2nd MCU11 is relatively by identification code in the signal that receives on the said external interrupting input end mouth and the identification code of himself storing, when two identification codes are identical, described the 2nd MCU11 handles the part except that above-mentioned identification code in this signal, and result is sent on the speech chip in the described sound circuit 12 by address bus, produce corresponding audio signal, and through amplifying the output of buffering back.
In the voice main frame of Fig. 3, also comprise a learn button 4 and learning state indicator light 5, this learn button 4 one terminates on the positive source, the other end is by resistance R 26 ground connection, between described learn button 4 and resistance, outconnector is connected to the input of described the 2nd MCU11, when this button 4 is pressed, high level appears in this input, so described the 2nd MCU11 enters learning state, and the identification code state promptly is set, described the 2nd MCU will enter the reflector identification code of receiving behind this state and be stored on the ad-hoc location, as the identification code of himself, the identification code of the signal that receives when being used for operating state relatively; When described the 2nd MCU entered above-mentioned learning state, its output port that links to each other with the driving triode Q1 of described status indicator lamp 5 output high level made above-mentioned driving triode Q1 conducting, illuminating state indicator light 5; When study is finished, promptly described the 2nd MCU11 is with identification code storage or described the 2nd MCU when in running order, and described output port is placed in low level, so described driving triode Q1 ends, described status indicator lamp 5 extinguishes.
Claims (5)
1, a kind of on-board wireless voice dialer comprises that the signal of reflector, the described reflector emission of reception is the voice main frame of voice signal output with this conversion of signals also, it is characterized in that,
Described reflector internal identification code, the signal of its emission has this identification code; Described reflector comprises a MCU, radio-frequency transmissions part and key-press matrix, described radio-frequency transmissions part is connected with the different I/O port of a described MCU respectively with key-press matrix, and described internal identification code is stored in one section fixing in the described MCU read-only memory continuous memory space;
Described radio-frequency transmissions partly comprises radio-frequency oscillator and modulating tube, described oscillator comprises oscillating tube and SAW (Surface Acoustic Wave) oscillator, the input of described SAW (Surface Acoustic Wave) oscillator is connected on the base stage of described oscillating tube, a branch road of described SAW (Surface Acoustic Wave) oscillator output is connected on the collector electrode of described modulating tube by an electric capacity, described modulating tube collector electrode links to each other with the emitter of described oscillating tube, and the collector electrode of described oscillating tube links to each other with another branch road of described SAW (Surface Acoustic Wave) oscillator output by a LC antiresonant circuit and is connected to positive source by an inductance;
Wherein, when described voice main frame is in learning state, it will receive and store the built-in identification code of described reflector as this machine identification code; When described voice main frame was in running order, when the identification code of its signal that receives was consistent with above-mentioned machine identification code, described this signal of voice host process also produced voice signal.
2, on-board wireless voice dialer according to claim 1 is characterized in that, described identification code comprises binary number.
3, on-board wireless voice dialer according to claim 2 is characterized in that, the length of described binary number comprises the 16-32 position.
4, on-board wireless voice dialer according to claim 3, it is characterized in that, described voice main frame comprises the 2nd MCU, the voicefrequency circuit that is connected with described the 2nd MCU, with described the 2nd MCU radio frequency receive circuit and learn button and study indicator light, described learn button is connected on the different I/O port of described the 2nd MCU with the study indicator light, triggering described learn button enters described voice main frame the identification code state to be set and to light described study indicator light, after the voice main frame was with the reflector identification code storage that receives, described study indicator light extinguished.
5, on-board wireless voice dialer according to claim 4 is characterized in that, the output of described radio-frequency (RF) receiving circuit is connected on first external interrupt input of described the 2nd MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100636084A CN100486264C (en) | 2006-12-29 | 2006-12-29 | On-board wireless voice dialer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100636084A CN100486264C (en) | 2006-12-29 | 2006-12-29 | On-board wireless voice dialer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101009725A CN101009725A (en) | 2007-08-01 |
| CN100486264C true CN100486264C (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100636084A Expired - Fee Related CN100486264C (en) | 2006-12-29 | 2006-12-29 | On-board wireless voice dialer |
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|---|---|
| CN (1) | CN100486264C (en) |
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- 2006-12-29 CN CNB2006100636084A patent/CN100486264C/en not_active Expired - Fee Related
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