CN103200482A - Solar charging-type Bluetooth headset and vehicle provided with same - Google Patents
Solar charging-type Bluetooth headset and vehicle provided with same Download PDFInfo
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- CN103200482A CN103200482A CN201310120972XA CN201310120972A CN103200482A CN 103200482 A CN103200482 A CN 103200482A CN 201310120972X A CN201310120972X A CN 201310120972XA CN 201310120972 A CN201310120972 A CN 201310120972A CN 103200482 A CN103200482 A CN 103200482A
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- 238000002592 echocardiography Methods 0.000 abstract description 4
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound 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Abstract
The invention relates to a vehicle-used Bluetooth headset, in particular to a solar charging-type Bluetooth headset and a vehicle provided with the same. A button and microphones are arranged on the side wall of the Bluetooth headset, the solar charging-type Bluetooth headset is charged through a solar charging stand, and a loud speaker is connected with a power amplifier. The microphones are connected with a digital signal processor (DSP) echo cancellation circuit. A photosensitive sensor is arranged in the Bluetooth headset. The solar charging stand is arranged on side window glass of the vehicle through a sucking disc. According to the solar charging-type Bluetooth headset, due to the fact that the DSP echo cancellation technique is adopted for suppressing environmental noise, call quality is improved; privacy answering and hands-free calls can be switched freely and can also be switched manually; the photosensitive sensor is arranged in the headset to detect whether a user wears the headset and then control the answering way of the user automatically; and the charging stand in the headset is short in charging time, fast and efficient, and can charge the Bluetooth headset any time any where.
Description
Technical field
The present invention relates to a kind of automobile-used bluetooth earphone, particularly a kind of solar charging type Bluetooth earphone, also relate to the vehicle that this bluetooth earphone is housed.
Background technology
Application number is 201110275786.4 Chinese invention patent, and it discloses a kind of solar charging type Bluetooth earphone, comprises the earphone main frame, also comprises solar cell, power-supply controller of electric, switch and storage battery; Solar cell and power-supply controller of electric electrically connect, and power-supply controller of electric electrically connects by switch and storage battery, and storage battery and earphone main frame electrically connect, and power-supply controller of electric is made of current controller and voltage controller; Beneficial effect is simple in structure, and is efficiently convenient, saved resource, and convenient use for a long time answer but this bluetooth earphone only allows the user to carry out secret, and earphone itself does not possess hand-free function, and the user has worn for a long time and can produce sense of fatigue like this; The user can cause hearing to descend for a long time with an ear, and extended telephone conversation also can cause symptoms such as tinnitus, dizziness; Need driver's health to keep relative stability when wearing earphone, come off to prevent earphone, it is limited to cause driving the visual angle.
Summary of the invention
Based on the problems referred to above, the invention provides a kind of solar charging type Bluetooth earphone and the vehicle of this bluetooth earphone is housed, being intended to solve existing bluetooth earphone only allows the user to carry out secret to answer, and earphone itself does not possess hand-free function, this has just brought the problem of three aspects: the first, on the comfortableness, the user has worn for a long time and can produce sense of fatigue; The second, unhealthful on, the user uses an ear for a long time, can cause hearing to descend, extended telephone conversation also can cause symptoms such as tinnitus, dizziness; Three, influence on the driving vision, need driver's health to keep relative stability when wearing earphone, come off to prevent earphone, it is limited to cause driving the visual angle.
In addition, most of bluetooth earphones adopt the Universal USB charging inlet, utilize cigar lighter to charge, charging interval more than 3 hours, so not only needs to connect charging wire mostly, gives in the car and causes mixed and disorderly sense, and the charging interval is oversize, brings inconvenience for normal the use.
For this reason, the present invention adopts following technical scheme.
A kind of solar charging type Bluetooth earphone, it comprises: the earphone main frame is provided with the Bluetooth transmission module, to realize the transmission of bluetooth; Electric power management circuit is arranged in the bluetooth earphone, for bluetooth earphone each several part circuit provides stable voltage; Storage battery is arranged in this bluetooth earphone, in order to supply with this earphone main frame electric energy; Power supply supply interface electrically connects with this storage battery, to receive external power source to this charge in batteries; Also comprise the solar recharging seat, this cradle is arranged on the side window glass of vehicle by sucker; Described bluetooth earphone inside is provided with light sensor.
The intelligence light sensor, can detect the user and whether wear earphone, if the user wears earphone, be after the user is with earphone, can block photosensitive light inlet, light sensor can produce a level variation like this, data processing chip is the circuit of digital signal by the analog signal conversion of AD(circuit the inside) sampling, compare with pre-set limit, thereby judge whether the user wears earphone, and then control the mode of answering.
Preferably, in the described solar recharging seat polycrystalline silicon solar charging panel is housed.The polycrystalline silicon solar charging panel can be converted to electric energy with solar energy quickly and efficiently, can certainly select mono-crystalline silicon solar charging panel, diversification solar charging panel etc. for use.
General, based on two groups of power supplys of Bluetooth chip needs of ARM or DSP technology, to kernel and I/O power supply, microphone needs a stable bias voltage respectively, and simultaneously, loud speaker and amplifying circuit also need power supply that enough drive currents are provided.Like this, at first need a battery charge chip, secondly the external electric energy that will come from solar charging panel being stored in the lithium battery rapidly and efficiently need 2-3 power conversion chips, for each several part provides stable reference voltage and output current.Consider time and the cost of use, rechargeable battery is best choice, accomplish profile small and exquisite, in light weight be very important, so just require to select a kind of Unit Weight charge density than higher battery, and lithium polymer battery meets above-mentioned requirements, as lithium battery.
Preferably, but the secondary cell that described storage battery is recharge to be used.
In the such scheme preferably, but the secondary cell that described recharge uses is nickel-cadmium cell.
In the such scheme preferably, but the secondary cell that described recharge uses is Ni-MH battery or lithium battery.
In the such scheme preferably, but the secondary cell that described recharge uses is lithium battery.
Vehicle, it is equipped with bluetooth earphone, and described bluetooth earphone is the bluetooth earphone of above-mentioned arbitrary claim.
Preferably, be provided with a battery charge chip in the described earphone main frame in the such scheme, will be stored in the storage battery from the external electric energy of solar charging panel.
Preferably, also be provided with power conversion chip in the described earphone main frame in the such scheme, for the each several part circuit provides stable reference voltage and output current.
Preferably, two loud speakers are installed on the described earphone main frame in the such scheme, are respectively earpiece speaker and outgoing loudspeaker.Two loud speakers have a job simultaneously, earpiece speaker work when secret is answered, outgoing loudspeaker work during hands-free answering, outgoing loudspeaker is connected with power amplification circuit, power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, for the user provides enough volumes, reach outer purpose of putting.
Preferably, described electric power management circuit links to each other with reset circuit in the such scheme, for the earphone main frame provide electrification reset, down reply by cable the position and low-voltage reset.
Preferably, described electric power management circuit also links to each other with power amplification circuit in the such scheme, and power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, and for the user provides enough volumes, reaches outer purpose of putting.
Preferably, described earphone main frame also comprises bluetooth process chip and data processing chip in the such scheme.
Preferably, described bluetooth process chip and data processing chip comprise the functional module of wireless transceiver, baseband controller, flash memory, clock and power supply in the such scheme.
The core of bluetooth earphone is bluetooth process chip and data processing chip, this part comprises: functional modules such as wireless transceiver, baseband controller, flash memory, clock and power supply, there are a lot of major companies that general bluetooth process chip is arranged at present, only need select suitable peripheral components to get final product during design.Preferably, described earphone main frame also comprises radio circuit in the such scheme, realizes transmission and the reception of wireless signal, realizes data communication between bluetooth earphone and mobile phone.
Preferably, described earphone main frame is provided with multiple spot and connects and two microphones in the such scheme.
Preferably, also be furnished with Bluetooth antenna on the described earphone main frame in the such scheme, realize that Bluetooth signal receives and emission.
Preferably, described Bluetooth antenna is at least a in wire antenna or microstrip antenna or array antenna or the horn antenna in the such scheme.
Preferably, described bluetooth process chip and data processing chip and button for mutual control is provided between user and the system, are realized operations such as switching on and shutting down, pattern are switched, quiet, volume adjusting in the such scheme.
Preferably, described user's interface also is provided with indicator light in the such scheme, and the combination flashing mode by the different colours indicator light carries out operations such as bluetooth discovery, successful matching, incoming call, charging for the user provide information.
Another aspect of the present invention provides a kind of on-vehicle Bluetooth device of ultrasonic wave automatic switchover voice mode, it comprises power management module, bluetooth module, sound control module, ultrasonic wave module and user interface, wherein, be electrically connected between power management module and bluetooth module, sound control module and the ultrasonic wave module, have signal between bluetooth module, sound control module and three modules of ultrasonic wave module and connect.
Preferably, power management module is connected with external power source, and comprises charging management chip, battery and power supply chip.
Preferably, bluetooth module links to each other with the microphone of outside in above-mentioned arbitrary scheme, and comprises Bluetooth chip, flash chip and communication antenna.
Preferably, the sound control module comprises power amplification chip and loud speaker in above-mentioned arbitrary scheme.
Preferably, user interface is provided with function button and indicator light in above-mentioned arbitrary scheme.
Compatible headset mode and outer mode playback on the on-vehicle Bluetooth device of this ultrasonic wave automatic switchover voice mode, the automatic switchover of conversing sound according to the user demand under the different application scenarios of user, individual privacy and traffic safety have been ensured, user-friendly, satisfy the requirement of traffic law, the generation of minimizing accident.
One side more of the present invention provides a kind of photoinduction switching controls bluetooth earphone, and it comprises: the earphone main frame, be provided with the Bluetooth transmission module, and carry out the signal transmission with the electronic equipment with other band bluetooth; Electric power management circuit is arranged in the bluetooth earphone, for bluetooth earphone each several part circuit provides stable voltage; Storage battery is arranged in this bluetooth earphone, in order to supply with this earphone main frame electric energy; Power supply supply interface electrically connects with this storage battery, to receive micro universal USB to this charge in batteries; Also comprise micro universal USB, described micro universal USB and described storage battery electrically connect; Described bluetooth earphone inside is provided with light sensor.
The intelligence light sensor, can detect the user and whether wear earphone, if the user wears earphone, be after the user is with earphone, can block photosensitive light inlet, light sensor can produce a level variation like this, data processing chip is the circuit of digital signal by the analog signal conversion of AD(circuit the inside) sampling, compare with pre-set limit, thereby judge whether the user wears earphone, and then control the mode of answering.
Preferably, described micro universal USB can connect the interior cigar lighter of car to carry out the charging to described bluetooth earphone.
General, based on two groups of power supplys of Bluetooth chip needs of ARM or DSP technology, to kernel and I/O power supply, microphone needs a stable bias voltage respectively, and simultaneously, loud speaker and amplifying circuit also need power supply that enough drive currents are provided.Like this, at first need a battery charge chip, secondly the external electric energy that will come from micro universal USB being stored in the lithium battery rapidly and efficiently need 2-3 power conversion chips, for each several part provides stable reference voltage and output current.Consider time and the cost of use, rechargeable battery is best choice, accomplish profile small and exquisite, in light weight be very important, so just require to select a kind of Unit Weight charge density than higher battery, and lithium polymer battery meets above-mentioned requirements, as lithium battery.
Preferably, but the secondary cell that described storage battery is recharge to be used.
In the such scheme preferably, but the secondary cell that described recharge uses is nickel-cadmium cell.
In the such scheme preferably, but the secondary cell that described recharge uses is Ni-MH battery or lithium battery.
In the such scheme preferably, but the secondary cell that described recharge uses is lithium battery.
Vehicle, it is equipped with bluetooth earphone, and described bluetooth earphone is the bluetooth earphone of above-mentioned arbitrary claim.
Preferably, be provided with a battery charge chip in the described earphone main frame in the such scheme, will be stored in the storage battery from the external electric energy of micro universal USB.
Preferably, also be provided with power conversion chip in the described earphone main frame in the such scheme, for the each several part circuit provides stable reference voltage and output current.
Preferably, two loud speakers are installed on the described earphone main frame in the such scheme, are respectively earpiece speaker and outgoing loudspeaker.Two loud speakers have a job simultaneously, earpiece speaker work when secret is answered, outgoing loudspeaker work during hands-free answering, outgoing loudspeaker is connected with power amplification circuit, power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, for the user provides enough volumes, reach outer purpose of putting.
Preferably, described electric power management circuit links to each other with reset circuit in the such scheme, for the earphone main frame provide electrification reset, down reply by cable the position and low-voltage reset.
Preferably, described electric power management circuit also links to each other with power amplification circuit in the such scheme, and power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, and for the user provides enough volumes, reaches outer purpose of putting.
Preferably, described earphone main frame also comprises bluetooth process chip and data processing chip in the such scheme.
Preferably, described bluetooth process chip and data processing chip comprise the functional module of wireless transceiver, baseband controller, flash memory, clock and power supply control in the such scheme.
The core of bluetooth earphone is bluetooth process chip and data processing chip, this part comprises: functional modules such as wireless transceiver, baseband controller, flash memory, clock and power supply, there are a lot of major companies that general bluetooth process chip is arranged at present, only need select suitable peripheral components to get final product during design.Preferably, described earphone main frame also comprises radio circuit in the such scheme, realizes transmission and the reception of wireless signal, realizes data communication between bluetooth earphone and mobile phone.
Preferably, described earphone main frame is provided with multiple spot and connects and two microphones in the such scheme.
Preferably, also be furnished with Bluetooth antenna on the described earphone main frame in the such scheme, realize that Bluetooth signal receives and emission.
Preferably, described Bluetooth antenna is at least a in wire antenna or microstrip antenna or array antenna or the horn antenna in the such scheme.
Preferably, described bluetooth process chip links to each other with button with data processing chip in the such scheme, for mutual control is provided between user and the system, realizes operations such as switching on and shutting down, pattern are switched, quiet, volume adjusting.
Preferably, described user's interface also is provided with indicator light in the such scheme, and the combination flashing mode by the different colours indicator light carries out operations such as bluetooth discovery, successful matching, incoming call, charging for the user provide information.
Another aspect of the present invention provides a kind of bluetooth earphone of capacitive distance induction switching controls, and it comprises: the earphone main frame, be provided with the Bluetooth transmission module, and carry out the signal transmission with the electronic equipment with other band bluetooth; Electric power management circuit is arranged in the bluetooth earphone, for bluetooth earphone each several part circuit provides stable voltage; Storage battery is arranged in this bluetooth earphone, in order to supply with this earphone main frame electric energy; Power supply supply interface electrically connects with this storage battery, to receive micro universal USB to this charge in batteries; Also comprise micro universal USB, described micro universal USB and described storage battery electrically connect; Described bluetooth earphone inside is provided with the capacitive distance transducer.
Intelligent capacitance distance perspective induction sensor, by rational distance control, can detect the user and whether wear earphone, if the user wears earphone, be to reach predeterminable range between the inner metal pad that arranges of human body skin and earphone, the capacitive distance inductive pick-up just produces a response, sends to data processing chip, and then controls the mode of answering.
Preferably, described micro universal USB can connect the interior cigar lighter of car to carry out the charging to described bluetooth earphone.
General, based on two groups of power supplys of Bluetooth chip needs of ARM or DSP technology, to kernel and I/O power supply, microphone needs a stable bias voltage respectively, and simultaneously, loud speaker and amplifying circuit also need power supply that enough drive currents are provided.Like this, at first need a battery charge chip, secondly the external electric energy that will come from micro universal USB being stored in the lithium battery rapidly and efficiently need 2-3 power conversion chips, for each several part provides stable reference voltage and output current.Consider time and the cost of use, rechargeable battery is best choice, accomplish profile small and exquisite, in light weight be very important, so just require to select a kind of Unit Weight charge density than higher battery, and lithium polymer battery meets above-mentioned requirements, as lithium battery.
Preferably, but the secondary cell that described storage battery is recharge to be used.
In the such scheme preferably, but the secondary cell that described recharge uses is nickel-cadmium cell.
In the such scheme preferably, but the secondary cell that described recharge uses is Ni-MH battery or lithium battery.
In the such scheme preferably, but the secondary cell that described recharge uses is lithium battery.
Vehicle, it is equipped with bluetooth earphone, and described bluetooth earphone is the bluetooth earphone of above-mentioned arbitrary claim.
Preferably, be provided with a battery charge chip in the described earphone main frame in the such scheme, will be stored in the storage battery from the external electric energy of micro universal USB.
Preferably, also be provided with power conversion chip in the described earphone main frame in the such scheme, for the each several part circuit provides stable reference voltage and output current.
Preferably, two loud speakers are installed on the described earphone main frame in the such scheme, are respectively earpiece speaker and outgoing loudspeaker.Two loud speakers have a job simultaneously, earpiece speaker work when secret is answered, outgoing loudspeaker work during hands-free answering, outgoing loudspeaker is connected with power amplification circuit, power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, for the user provides enough volumes, reach outer purpose of putting.
Preferably, described electric power management circuit links to each other with reset circuit in the such scheme, for the earphone main frame provide electrification reset, down reply by cable the position and low-voltage reset.
Preferably, described electric power management circuit also links to each other with power amplification circuit in the such scheme, and power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, and for the user provides enough volumes, reaches outer purpose of putting.
Preferably, described earphone main frame also comprises bluetooth process chip and data processing chip in the such scheme.
Preferably, described bluetooth process chip and data processing chip comprise the functional module of wireless transceiver, baseband controller, flash memory, clock and power supply control in the such scheme.
The core of bluetooth earphone is bluetooth process chip and data processing chip, this part comprises: functional modules such as wireless transceiver, baseband controller, flash memory, clock and power supply, there are a lot of major companies that general bluetooth process chip is arranged at present, only need select suitable peripheral components to get final product during design.Preferably, described earphone main frame also comprises radio circuit in the such scheme, realizes transmission and the reception of wireless signal, realizes data communication between bluetooth earphone and mobile phone.
Preferably, described earphone main frame is provided with multiple spot and connects and two microphones in the such scheme.
Preferably, also be furnished with Bluetooth antenna on the described earphone main frame in the such scheme, realize that Bluetooth signal receives and emission.
Preferably, described Bluetooth antenna is at least a in wire antenna or microstrip antenna or array antenna or the horn antenna in the such scheme.
Preferably, described bluetooth process chip links to each other with button with data processing chip in the such scheme, for mutual control is provided between user and the system, realizes operations such as switching on and shutting down, pattern are switched, quiet, volume adjusting.
Preferably, described user's interface also is provided with indicator light in the such scheme, and the combination flashing mode by the different colours indicator light carries out operations such as bluetooth discovery, successful matching, incoming call, charging for the user provide information.
Description of drawings
Fig. 1 is for according to solar charging type Bluetooth earphone of the present invention and the realization schematic diagram of preferred embodiment of the vehicle of this bluetooth earphone is housed;
Fig. 2 is for solar charging type Bluetooth earphone according to the present invention and the schematic diagram of the on-vehicle Bluetooth device of the ultrasonic wave automatic switchover voice mode that provides among Fig. 1 of vehicle of this bluetooth earphone is housed.
Embodiment
The following description only is exemplary and be not in order to limit the disclosure, application or purposes in essence.Below in conjunction with Figure of description the automobile-used bluetooth earphone of the present invention and embodiment that the vehicle of this bluetooth earphone is housed are further described.
It is that bluetooth earphone charges that an aspect of of the present present invention provides by solar charging panel, its course of work is: when bluetooth earphone need charge, only the solar recharging seat need be installed in by sucker on the side window glass of vehicle and charge, the earphone main frame is provided with the Bluetooth transmission module, to carry out the signal transmission with electronic installation; Electric power management circuit is arranged in the bluetooth earphone, for bluetooth earphone each several part circuit provides stable voltage; Storage battery is arranged in this bluetooth earphone, in order to supply with this earphone main frame electric energy; Power supply supply interface electrically connects with this storage battery, to receive external power source to this charge in batteries, after charging is finished the earphone main frame is taken off from cradle.
Bluetooth earphone among the present invention is equipped with the big capacity lithium polymer battery of 300-500mA, guarantees that each battery is full of, and the user can normal talking at least 5 hours, and the charging interval, rapidly and efficiently the solar recharging seat can be charging bluetooth earphone whenever and wherever possible.
A second aspect of the present invention is: this solar charging type Bluetooth earphone also has hands-free function, when incoming call, the button of pressing on the bluetooth can be conversed, the user needn't re-use mobile phone and answer, the other side's sound is transferred on the bluetooth handsfree device automatically by mobile phone, user's sound carries out processing such as echo cancellation, encoding and decoding by microphone through hands-free device of the present invention, re-sends to mobile phone and sends to the other side through mobile phone GSM network, finishes hands-free work.
A third aspect of the present invention is: the earphone main frame is provided with light sensor, can detect the user and whether wear earphone, if the user wears earphone, be to block photosensitive light inlet after the user puts on earphone, light sensor can produce a level variation like this, data processing chip is the circuit of digital signal by the analog signal conversion of AD(circuit the inside) sampling compares with pre-set limit, thus judge whether the user wears earphone, and then control the mode of answering.
Below in conjunction with accompanying drawing operation principle of the present invention is elaborated.
As shown in Figure 1, adopt solar charging panel as power supply among the present invention, the electrical power storage of filling through solar charging panel is in storage battery.Bluetooth earphone of the present invention mainly comprise receive and the emission bluetooth data packets and to digital signal carry out encoding and decoding the bluetooth module circuit unit, be used for the control Bluetooth system the microcontroller circuit unit, the electric power management circuit of stable working power is provided, audio signal is carried out raisings audio frequency tonequality such as echo cancellation audio frequency processing circuit, be used for loud speaker that audio signal exports, finish the microphone of phonetic entry etc.
The annexation of electric power management circuit and other accessories thereof is in the bluetooth earphone of the present invention: the bluetooth module circuit unit includes the radio-frequency (RF) transmit-receive circuit unit, the audio frequency processing circuit unit, the audio frequency processing circuit unit is by coding, decoding circuit and power amplification circuit are formed, be to connect like this between them, radio-frequency receiving-transmitting treatment circuit in the bluetooth module circuit unit is connected with audio treatment unit, the microphone output interface is connected with audio treatment unit, power amplification circuit respectively with output loud speaker and audio treatment unit in coding, decoding circuit connects, the microcontroller circuit unit respectively with the bluetooth module circuit unit in the radio-frequency receiving-transmitting treatment circuit and the coding and decoding circuit of audio treatment unit be connected, the electric power management circuit unit has with described each several part circuit and is connected.
After bluetooth earphone of the present invention and the pairing of corresponding mobile phone arrange, the user starts shooting at every turn, bluetooth will be searched for corresponding configuration information automatically, automatically match with user's mobile phone, when incoming call, the user can answer and refuse by the control of button or voice, can be by button or voice control behind the end of conversation, also possess functions such as the end number redials, phonetic dialing.
Electric power management circuit provides stable voltage for the each several part circuit, satisfies Bluetooth chip simultaneously to the requirement of load response and noise suppressed.General, based on two groups of power supplys of Bluetooth chip needs of ARM or DSP technology, to kernel and I/O power supply, microphone needs a stable bias voltage respectively, and simultaneously, loud speaker and amplifying circuit also need power supply that enough drive currents are provided.Like this, at first need a battery charge chip, secondly the external electric energy that will come from solar charging panel being stored in the lithium battery rapidly and efficiently need 2-3 power conversion chips, for each several part provides stable reference voltage and output current.Consider time and the cost of use, rechargeable battery is best choice, accomplish profile small and exquisite, in light weight be very important, so just require to select a kind of Unit Weight charge density than higher battery, and lithium polymer battery meets above-mentioned requirements, as lithium battery.Solar charging panel adopts polycrystalline silicon material, can quickly and efficiently solar energy be converted to electric energy.
Reset circuit is that the reliability service of system provides safeguard, can realize electrification reset, down reply by cable the position, low-voltage resets; User's interface is for providing mutual control between user and the system, realize operations such as switching on and shutting down, pattern are switched, quiet, volume adjusting.Two indicator lights are red and blue, by different combination flashing modes, for operations such as user's bluetooth discovery, successful matching, incoming call, charging provide information.
The intelligence light sensor, can detect the user and whether wear earphone, if the user wears earphone, be after the user is with earphone, can block photosensitive light inlet, light sensor can produce a level variation like this, data processing chip is sampled by AD, compare with pre-set limit, thereby judge whether the user wears earphone, and then control the mode of answering.
Two loud speakers have a job simultaneously, earpiece speaker work when secret is answered, outgoing loudspeaker work during hands-free answering, outgoing loudspeaker is connected with power amplification circuit, power amplification circuit amplifies the audio signal that the Bluetooth chip decoding is come, for the user provides enough volumes, reach outer purpose of putting.
Bluetooth earphone of the present invention can connect two mobile phones simultaneously, and match respectively, so bluetooth earphone is provided with Mike 1 and Mike 2, Mike 1 and Mike 2 gather the voice signal that the user sends, change it into audio signal, by the noise elimination pure audio signal is sent to the bluetooth process chip, the bluetooth process chip is carried out filtering, coding etc. again and is further handled.
Radio-frequency (RF) front-end circuit realizes transmission and the reception of wireless signal, by unified short range links, realizes between bluetooth earphone and mobile phone flexibly, safety, cost is low, power consumption is little voice communications versus data communications.Bluetooth antenna is the interface unit between radiofrequency signal and the space electromagnetic wave, is to realize that Bluetooth signal receives and the parts of emission.Antenna of a great variety mainly is divided into numerous types such as wire antenna, microstrip antenna, array antenna, horn antenna.
The core of bluetooth earphone is bluetooth process chip and data processing chip, this part comprises: functional modules such as wireless transceiver, baseband controller, flash memory, clock and power supply, there are a lot of major companies that general bluetooth process chip is arranged at present, only need select suitable peripheral components to get final product during design.
Another aspect of the present invention provides a kind of on-vehicle Bluetooth device of ultrasonic wave automatic switchover voice mode.As shown in Figure 2, it comprises power management module 1, bluetooth module 2, sound control module 3, ultrasonic wave module 4 and user interface 5, wherein, power management module 1 and bluetooth module 2, be electrically connected between sound control module 3 and the ultrasonic wave module 4, bluetooth module 2, having signal between 4 three modules of sound control module 3 and ultrasonic wave module connects, wherein, power management module 1 comprises charging management chip, battery and power supply chip, wherein, power management module 1 is connected with external power source, and by external power source its internal battery is charged, charging management chip can not overcharge for the protection of battery, electric weight is full of the back and is used for powering to other modules by the power supply chip, like this, this power management module 1 can realize that external power source is to the Charge Management of its internal cell and to the function of supplying power of inner other modules of this on-vehicle Bluetooth device; Bluetooth module 2 comprises Bluetooth chip, flash chip and communication antenna, carry out the function of radio communication between these bluetooth module 2 main realizations and the user's earphone, particularly, this bluetooth module 2 is finished the Bluetooth transmission function of various signals such as voice signal according to user's operational order, for example, reception is from the sound import of external microphone, the conversation sound of partner is sent to user's earphone by bluetooth approach or externally exports by sound control module 3 according to the control signal of sound control module 3; This sound control module 3 comprises power amplification chip and loud speaker, the range information that this sound control module 3 is mainly obtained according to ultrasonic wave module 4 switches the mode of bluetooth module output sound, particularly, when sound control module 3 according to ultrasonic wave module 4 obtain judge that apart from length the user uses headset mode the time, just working as between people's side face and earphone apart from more in short-term, indication sound control module 3 is closed the power amplification chip and by bluetooth module 2 sound is sent to user's earphone place, when sound control module 3 obtain according to ultrasonic wave module 4 judge apart from length the user use outside during mode playback, this moment, ultrasonic wave module 4 was obtained apart from length is long when namely being in state such as earphone hang-up, with the loud speaker output of sound by sound control module 3; Ultrasonic wave module 4 is mainly used in by the emission ultrasonic wave to survey the distance between people face and earphone or the loud speaker; User interface 5 is provided with function button and indicator light, wherein function button have connect phone, hang up the telephone, call out transfers, function such as wait conversation, indicator light is used for showing the state of conversation, for example prompting has incoming call incoming call or prompting incoming call to connect, and can also be used for the electric weight of battery in the display power supply administration module 1.
It will be apparent to those skilled in the art that solar charging type Bluetooth earphone of the present invention comprises the combination in any of each several part in this specification.As space is limited and in order to make specification simple and clear, these combinations not to be introduced one by one in detail at this, but after having seen this specification, the scope of the present invention that the combination in any of the each several part that is made of this specification constitutes is self-evident.
Claims (10)
1. solar charging type Bluetooth earphone, it comprises:
The earphone main frame is provided with the Bluetooth transmission module, to realize the transmission of bluetooth;
Electric power management circuit is arranged in the bluetooth earphone, for bluetooth earphone each several part circuit provides stable voltage;
Storage battery is arranged in this bluetooth earphone, in order to supply with this earphone main frame electric energy;
Power supply supply interface electrically connects with this storage battery, to receive external power source to this charge in batteries;
It is characterized in that: also comprise the solar recharging seat, this cradle is arranged on the side window glass of vehicle by sucker; Described bluetooth earphone inside is provided with light sensor.
2. bluetooth earphone as claimed in claim 1 is characterized in that: in the described solar recharging seat polycrystalline silicon solar charging panel is housed.
3. bluetooth earphone as claimed in claim 1 is characterized in that: but the secondary cell that described storage battery uses for recharge.
4. bluetooth earphone as claimed in claim 1 is characterized in that: be provided with a battery charge chip in the described earphone main frame, will be stored in the storage battery from the external electric energy of solar charging panel.
5. bluetooth earphone as claimed in claim 1 is characterized in that: also be provided with power conversion chip in the described earphone main frame, for the each several part circuit provides stable reference voltage and output current.
6. bluetooth earphone as claimed in claim 1 is characterized in that: two loud speakers are installed on the described earphone main frame, are respectively earpiece speaker and outgoing loudspeaker.
7. bluetooth earphone as claimed in claim 1, it is characterized in that: described electric power management circuit links to each other with reset circuit, for the earphone main frame provides electrification reset, replies position and low-voltage by cable down and reset.
8. bluetooth earphone as claimed in claim 1, it is characterized in that: described electric power management circuit also links to each other with power amplification circuit.
9. bluetooth earphone as claimed in claim 1, it is characterized in that: described earphone main frame also comprises bluetooth process chip and data processing chip.
10. bluetooth earphone as claimed in claim 9, it is characterized in that: described bluetooth process chip and data processing chip comprise the functional module of wireless transceiver, baseband controller, flash memory, clock and power supply.
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