CN201559584U - Automobile inner rearview mirror supporting hand-free bluetooth communication - Google Patents
Automobile inner rearview mirror supporting hand-free bluetooth communication Download PDFInfo
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- CN201559584U CN201559584U CN2009202469348U CN200920246934U CN201559584U CN 201559584 U CN201559584 U CN 201559584U CN 2009202469348 U CN2009202469348 U CN 2009202469348U CN 200920246934 U CN200920246934 U CN 200920246934U CN 201559584 U CN201559584 U CN 201559584U
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Abstract
The utility model relates to an automobile inner rearview mirror supporting hand-free bluetooth communication. A microphone, a display, a bluetooth function press key and an inner rearview mirror interface are arranged on the body of the inner rearview mirror; the bluetooth function press key is used for answering and hanging up a bluetooth mobile phone and controlling the talking volume of the bluetooth mobile phone; the inner rearview mirror interface is used for connecting a bluetooth mobile phone control system; the bluetooth mobile phone control system comprises a bluetooth baseband module, an MCU, a microphone signal amplifying/power supplying unit, an echo cancelling circuit, an audio driving circuit and a stereo interface; the bluetooth baseband module is used for receiving a bluetooth keyboard signal, transmitting at radio frequency and outputting an incoming call number; the MCU is used for communicating, converting the bluetooth control protocol and diagnosing and testing the system; the microphone signal amplifying/power supplying unit is used for amplifying the signal of the microphone, processing the interference of the signal of the microphone and supplying power to the microphone; and the echo cancelling circuit is used for cancelling the echo of a loudspeaker. The utility model has the advantages that the driver can fully use the resources of the automobile inner rearview mirror to fulfill the automobile hand-free bluetooth communication function like answering the phone, calling somebody up, seeing the phone number of the caller and even switching from hand-free talking to hand-held talking. The automobile inner rearview mirror can be operated safely, conveniently and easily.
Description
Technical field
The utility model relates to automotive controls, particularly a kind of inside-automobile rear mirror of supporting bluetooth handsfree communication.
Background technology
At present, the anti-glare inside rear-view mirror of dim light is called for short inside-automobile rear mirror and has improved the safety factor of driving night, but its purposes is more single usually, does not have other function setting automatically.On the other hand, in vehicle-carrying communication, people wish to put down mobile phone and make a phone call, and realize receiving calls, call, functions such as the switching of hands-free commentariess on classics secret, caller identification, and the car handsfree function promptly is provided.Because condition is limit in the car, in the vehicle-mounted hand-free function of design, often be difficult to find the interface location of a function control.This becomes in vehicle-carrying communication, such as an obstacle realizing bluetooth handsfree communication.So far, the technical design that bluetooth handsfree communication and inside-automobile rear mirror are connected does not also have and sees.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective, and a kind of safety of operation, convenience and the inside-automobile rear mirror of supporting that simply bluetooth handsfree is communicated by letter are provided.
For achieving the above object, the inside-automobile rear mirror of the support bluetooth handsfree communication that the utility model provides is equipped with on its mirror body:
Microphone is used to gather user's aud. snl.;
Telltale is used to show caller ID;
Some Bluetooth function buttons are used for answering, hanging up with In Call and control of bluetooth cellular phone;
One inside rear-view mirror interface is used for being connected with the bluetooth cellular phone control system;
Wherein, described microphone, telltale and Bluetooth function button link to each other with described inside rear-view mirror interface respectively.
The utility model is supported the inside-automobile rear mirror of bluetooth handsfree communication, and wherein said bluetooth cellular phone control system comprises:
The bluetooth baseband module is used to receive bluetooth keyboard signal, less radio-frequency transmission and output incoming number;
The MCU unit is used for communication, Bluetooth control protocol conversion and system diagnostics test;
Microphone amplification/power supply unit is used for the difference of microphone signal is amplified and removal interference processing and microphone power;
Echo cancellation circuit is used to eliminate the acoustic treatment that loudspeaker sound is feedback; With
Audio drive circuitry and coupled sound equipment interface;
Wherein, described MCU unit links to each other respectively with bluetooth baseband module, inside rear-view mirror interface and sound equipment interface, described echo cancellation circuit links to each other respectively with audio drive circuitry with described bluetooth baseband module, and described microphone amplification/power supply unit links to each other respectively with the inside rear-view mirror interface with described echo cancellation circuit; Described bluetooth baseband module receives the bluetooth keyboard signal, exports described MCU unit to handling the caller ID that obtains behind the bluetooth baseband signal, and the voice signal of conversation is connected to described sound equipment interface through described echo cancellation circuit and audio drive circuitry; Described MCU unit collection is also handled the aud. snl. of bluetooth push button signalling from described inside rear-view mirror interface, microphone and from the caller ID signal of described bluetooth baseband module and send control command to described bluetooth baseband module, echo cancel circuit and sound equipment interface, and the numerical signal of will sending a telegram here exports described telltale to through described inside rear-view mirror interface.
The utility model is supported the inside-automobile rear mirror of bluetooth handsfree communication, and it is the circuit of single-chip integrated formation of BC04 that wherein said bluetooth baseband module adopts Britain SCR company model.
The utility model is supported the inside-automobile rear mirror of bluetooth handsfree communication, and it is the circuit of single-chip integrated formation of P89LPC93X or Freescale that wherein said MCU unit adopts Philips company model.
The utility model is supported the inside-automobile rear mirror of bluetooth handsfree communication, wherein said bluetooth cellular phone control system also is included as the PMU that each element circuit provides the voltage stabilizing power supply, wherein, for described bluetooth baseband module provides 3.3v power supply, for described echo cancel circuit provides 1.8v, the 2.5-3.3v power supply is for described MCU unit provides 3-5v power supply, for described microphone amplification/power supply unit provides 8v power supply, for described audio drive circuitry provides 5v power supply.
The utility model supports the advantage and the good effect of the inside-automobile rear mirror of bluetooth handsfree communication to be: because microphone, telltale, Bluetooth function button and inside rear-view mirror interface have been installed on the inside rear-view mirror of automobile, the bluetooth cellular phone control system that cooperates the user again, receive calls to finish, call, hands-free commentaries on classics is concealed switches and function such as caller identification, made full use of the resource of inside rear-view mirror, realized the on-vehicle Bluetooth hands-free communication, its safety of operation, convenience, simple.
Be elaborated with reference to accompanying drawing below in conjunction with embodiment.
Description of drawings
Fig. 1 is the block scheme that the utility model is supported the inside-automobile rear mirror of bluetooth handsfree communication;
Fig. 2 is the circuit diagram of echo cancellation circuit and microphone amplification/power supply unit;
Fig. 3 is the circuit diagram of bluetooth baseband module;
Fig. 4 is the circuit diagram of back mirror interface, sound equipment interface and PMU.
The specific embodiment
In order to realize the function of car handsfree communication, the utility model provides an interface of realizing Bluetooth communication car handsfree function, automatic dim light anti-dazzle driving mirror at automobile, be called for short on the inside-automobile rear mirror, be equipped with: microphone, telltale, Bluetooth function button and an inside rear-view mirror interface 3, the bluetooth cellular phone control system that cooperates the user again, finish receive calls, call, functions such as the concealed switching of hands-free commentaries on classics, caller identification.
With reference to Fig. 1, the utility model is supported the inside-automobile rear mirror of bluetooth handsfree communication, and wherein: microphone is used to gather user's aud. snl.; Telltale is used to show caller ID; Some Bluetooth function buttons are used for answering, hanging up with In Call and control of bluetooth cellular phone; Inside rear-view mirror interface 3 is used for being connected with the bluetooth cellular phone control system; Microphone, telltale and Bluetooth function button link to each other with inside rear-view mirror interface 3 respectively.Inside rear-view mirror interface 3 satisfies the requirement of antistatic protection and automotive safety rules.
The bluetooth cellular phone control system comprises: bluetooth baseband module 1 is used to receive bluetooth keyboard signal, less radio-frequency transmission and output incoming number; MCU unit 2 is used for communication, Bluetooth control protocol conversion and system diagnostics test; Microphone amplification/power supply unit 5 is used for the difference of microphone signal is amplified and removal interference processing and microphone power; Echo cancellation circuit 4 is used to eliminate the acoustic treatment that loudspeaker sound is feedback; Audio drive circuitry 7 and coupled sound equipment interface 6 and the PMU 8 of voltage stabilizing power supply is provided for each element circuit.Sound equipment interface 6 satisfies the requirement of antistatic protection and automotive safety rules.
Wherein, MCU unit 2 links to each other respectively with bluetooth baseband module 1, inside rear-view mirror interface 3 and sound equipment interface 6, echo cancellation circuit 4 links to each other respectively with audio drive circuitry 7 with bluetooth baseband module 1, and microphone amplification/power supply unit 5 links to each other respectively with inside rear-view mirror interface 3 with echo cancellation circuit 4.With reference to Fig. 2 and Fig. 3, bluetooth baseband module 1 receives the bluetooth keyboard signal, exports MCU unit 2 to handling the caller ID that obtains behind the bluetooth baseband signal, and the voice signal of conversation is connected to sound equipment interface 6 through echo cancellation circuit 4 and audio drive circuitry 7; MCU unit 2 is gathered and is handled from the bluetooth push button signalling RXD of inside rear-view mirror interface 3, the aud. snl. Mic+ of microphone, Mic-and from the caller ID signal TXD of bluetooth baseband module 1 and send control command to bluetooth baseband module 1, echo cancel circuit and sound equipment interface 6, and the numerical signal of will sending a telegram here exports telltale to through inside rear-view mirror interface 3.
With reference to Fig. 4; PMU is to carrying out filtering and protection processing from the conducted interference signal of power lead; and provide 3.3v power supply for bluetooth baseband module 1; for echo cancel circuit provides 1.8v; 2.5-3.3v power supply; for MCU unit 2 provides 3-5v power supply, for microphone amplification/power supply unit 5 provides 8v power supply, for audio drive circuitry 7 provides 5v power supply.
With reference to Fig. 3, support among the embodiment of the inside-automobile rear mirror that bluetooth handsfree is communicated by letter that at the utility model it is the circuit of single-chip integrated formation of BC04 that bluetooth baseband module 1 adopts Britain SCR company model.It is the circuit of single-chip integrated formation of P89LPC93X or Freescale that MCU unit 2 adopts Philips company model.
Support the working process of the inside-automobile rear mirror of bluetooth handsfree communication below in conjunction with description of drawings the utility model.
After automobile ignition switch places ON, start bluetooth baseband module 1 by inside rear-view mirror and carry out Bluetooth pairing, bluetooth connection.When phone is arranged, can realize caller identification, answer and hang up in inside rear-view mirror, gather and handle aud. snl. from the microphone on the inside rear-view mirror, gather and handle the bluetooth key information on the inside rear-view mirror, send control command, play the voice and the incoming ring tone of partner by sound equipment interface 6, and press the volume of key control partner by Bluetooth control.Simultaneously, inside rear-view mirror will show functions such as caller ID.The beneficial effects of the utility model are, make full use of the resource of inside rear-view mirror, have realized the on-vehicle Bluetooth hands-free communication, its safety of operation, convenience, simple.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under the utility model design plan prerequisite; common engineering staff make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (5)
1. inside-automobile rear mirror of supporting bluetooth handsfree communication is characterized in that: be equipped with on its mirror body:
Microphone is used to gather user's aud. snl.;
Telltale is used to show caller ID;
Some Bluetooth function buttons are used for answering, hanging up with In Call and control of bluetooth cellular phone;
One inside rear-view mirror interface (3) is used for being connected with the bluetooth cellular phone control system;
Wherein, described microphone, telltale and Bluetooth function button link to each other with described inside rear-view mirror interface (3) respectively.
2. according to the inside-automobile rear mirror of the support bluetooth handsfree of claim 1 communication, it is characterized in that: wherein said bluetooth cellular phone control system comprises:
Bluetooth baseband module (1) is used to receive bluetooth keyboard signal, less radio-frequency transmission and output incoming number;
MCU unit (2) is used for communication, Bluetooth control protocol conversion and system diagnostics test;
Microphone amplification/power supply unit (5) is used for the difference of microphone signal is amplified and removal interference processing and microphone power;
Echo cancellation circuit (4) is used to eliminate the acoustic treatment that loudspeaker sound is feedback; With
Audio drive circuitry (7) and coupled sound equipment interface (6);
Wherein, described MCU unit (2) links to each other respectively with bluetooth baseband module (1), inside rear-view mirror interface (3) and sound equipment interface (6), described echo cancellation circuit (4) links to each other respectively with audio drive circuitry (7) with described bluetooth baseband module (1), and described microphone amplification/power supply unit (5) links to each other respectively with inside rear-view mirror interface (3) with described echo cancellation circuit (4); Described bluetooth baseband module (1) receives the bluetooth keyboard signal, export described MCU unit (2) to handling the caller ID that obtains behind the bluetooth baseband signal, and the voice signal of conversation is connected to described sound equipment interface (6) through described echo cancellation circuit (4) and audio drive circuitry (7); Described MCU unit (2) is gathered and is handled from the bluetooth push button signalling (RXD) of described inside rear-view mirror interface (3), the aud. snl. (Mic+ of microphone, Mic-) with from the caller ID signal (TXD) of described bluetooth baseband module (1) and send control command to described bluetooth baseband module (1), echo cancel circuit and sound equipment interface (6), and the numerical signal of will sending a telegram here exports described telltale to through described inside rear-view mirror interface (3).
3. the inside-automobile rear mirror of support bluetooth handsfree communication according to claim 2 is characterized in that: it is the circuit of single-chip integrated formation of BCO4 that wherein said bluetooth baseband module (1) adopts Britain SCR company model.
4. the inside-automobile rear mirror of support bluetooth handsfree communication according to claim 3 is characterized in that: it is the circuit of single-chip integrated formation of P89LPC93X or Freescale that wherein said MCU unit (2) adopts Philips company model.
5. the inside-automobile rear mirror of support bluetooth handsfree communication according to claim 4, it is characterized in that: wherein said bluetooth cellular phone control system also is included as the PMU (8) that each element circuit provides the voltage stabilizing power supply, wherein, for described bluetooth baseband module (1) provides 3.3v power supply, for described echo cancel circuit (4) provides 1.8v, 2.5-3.3v power supply, for described MCU unit (2) provides 3-5v power supply, for described microphone amplification/power supply unit (5) provides 8v power supply, for described audio drive circuitry (7) provides 5v power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202469348U CN201559584U (en) | 2009-11-10 | 2009-11-10 | Automobile inner rearview mirror supporting hand-free bluetooth communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202469348U CN201559584U (en) | 2009-11-10 | 2009-11-10 | Automobile inner rearview mirror supporting hand-free bluetooth communication |
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| Publication Number | Publication Date |
|---|---|
| CN201559584U true CN201559584U (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202469348U Expired - Lifetime CN201559584U (en) | 2009-11-10 | 2009-11-10 | Automobile inner rearview mirror supporting hand-free bluetooth communication |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098334A (en) * | 2010-12-31 | 2011-06-15 | 深圳市领华卫通数码科技有限公司 | Communication method between rearview mirror system and vehicle service platform and device thereof |
| CN102923002A (en) * | 2012-11-16 | 2013-02-13 | 北京兴科迪科技有限公司 | Rearview mirror provided with altitude and gradient display device, and automobile employing rearview mirror |
| CN104057884A (en) * | 2014-05-28 | 2014-09-24 | 广东多纳勒振华汽车系统有限公司 | Automobile inside rear-view mirror with Bluetooth hands-free calls function |
| CN107147960A (en) * | 2017-05-18 | 2017-09-08 | 苏贻新 | One kind is vehicle-mounted to exempt from hand-hold wireless intercom method |
| CN111356098A (en) * | 2016-12-30 | 2020-06-30 | 深圳市中兴微电子技术有限公司 | Call control method, server, vehicle-mounted terminal and mobile terminal |
-
2009
- 2009-11-10 CN CN2009202469348U patent/CN201559584U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098334A (en) * | 2010-12-31 | 2011-06-15 | 深圳市领华卫通数码科技有限公司 | Communication method between rearview mirror system and vehicle service platform and device thereof |
| CN102923002A (en) * | 2012-11-16 | 2013-02-13 | 北京兴科迪科技有限公司 | Rearview mirror provided with altitude and gradient display device, and automobile employing rearview mirror |
| CN104057884A (en) * | 2014-05-28 | 2014-09-24 | 广东多纳勒振华汽车系统有限公司 | Automobile inside rear-view mirror with Bluetooth hands-free calls function |
| CN111356098A (en) * | 2016-12-30 | 2020-06-30 | 深圳市中兴微电子技术有限公司 | Call control method, server, vehicle-mounted terminal and mobile terminal |
| CN107147960A (en) * | 2017-05-18 | 2017-09-08 | 苏贻新 | One kind is vehicle-mounted to exempt from hand-hold wireless intercom method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Sincode Science & Technology Co., Ltd. Assignor: Bai Yunfei Contract record no.: 2012990000346 Denomination of utility model: Automobile inner rearview mirror supporting hand-free bluetooth communication Granted publication date: 20100825 License type: Exclusive License Record date: 20120524 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100825 |
|
| CX01 | Expiry of patent term |