CN201733294U

CN201733294U - Vehicle Bluetooth hand-free system

Info

Publication number: CN201733294U
Application number: CN2009202980278U
Authority: CN
Inventors: 赵杰; 张晓东; 杜鹃; 周亚伟
Original assignee: BAOTOU BEI BEN HEAVY-DUTY TRUCK Co Ltd
Current assignee: BAOTOU BEI BEN HEAVY-DUTY TRUCK Co Ltd
Priority date: 2009-12-24
Filing date: 2009-12-24
Publication date: 2011-02-02
Anticipated expiration: 2019-12-24

Abstract

The utility model relates to a vehicle Bluetooth hand-free system, aiming at overcoming the defects of inconvenient installation and disassembly, inconvenient operation, poor speech quality in the environment with loud noise and the like of most Bluetooth products in the market. The vehicle Bluetooth hand-free system is firm in installation, solves the problem that the Bluetooth product in the after market can not meet the requirement of the driving environment of a truck, and comprises a host machine, a key, a vehicle sound system, a half sleeve shell, a shockproof heating pad screw and a shockproof pad, wherein the host machine consists of a Bluetooth module, a key detecting module, a power supply conversion module, a microphone and a connector; the key is arranged on a steering wheel; the host machine is respectively connected with the key and the vehicle sound system by the connector in the host machine; and the shockproof heating pad screw and the shockproof pad are fixed at one end of the host machine, and the half sleeve shell is sheathed at the other end thereof. The vehicle Bluetooth hand-free system fully gives the consideration to the using environment of loud noise and high vibration of a commercial vehicle, realizes hand-free conversation without noise of the commercial vehicle on the premise of acceptable cost, and is reliable in installation.

Description

The on-vehicle Bluetooth Handless system

Technical field

The present invention relates to a kind of conversation Handless system, particularly a kind of on-vehicle Bluetooth Handless system.

Background technology

The standard agreement of Bluetooth technology is IEEE802.15.1, and target application is a wireless personal local area network, mainly is bluetooth earphone, Baffle Box of Bluetooth, blue-teeth data transmission, and the bluetooth handsfree phone.Most of in the market vehicle does not have the bluetooth handsfree system, and part vehicle institute match system all is a back dress product, needs additional the installation, uses inconvenient operation, interior vehicle noise is not obviously filtered cause speech quality difference and car load to merge bad.

Summary of the invention

This product such as has overcome on the market most of blue tooth products speech quality has been bad in installing/dismounting inconvenience, inconvenient operation, under the big environment of noise at deficiency, it is firm to install, and has solved the requirement that the central blue tooth products in back dress market can't satisfy the truck driving environment.

The utility model is realized by following technical scheme:

A kind of on-vehicle Bluetooth Handless system, comprise main frame, button, car audio system, half sheath body, shockproof heat pad screw and crash roll, main frame is by bluetooth module, the button detection module, power transfer module, microphone and connector are formed, and button is contained on the steering wheel, and main frame is connected by the connector in the main frame with button and car audio system respectively, shockproof heat pad screw, crash roll are fixed on main frame one end, and half sheath body is enclosed within the main frame other end.

The utility model is fully taken into account the environment for use of the big noise of commercial car, big bang, under the acceptable prerequisite of cost, has realized commercial car noiseless hand-free call, installs reliable.

Description of drawings

Fig. 1 is the utility model structure and fundamental diagram;

Fig. 2 is the utility model main frame and half sheath body, shockproof heat pad screw and crash roll mounting structure schematic diagram;

Fig. 3 is steering wheel button figure of the present utility model.

Fig. 4 is that the A of Fig. 2 is to view.

Embodiment

As Fig. 1-shown in Figure 4, the utility model comprises main frame 1, button, car audio system, half sheath body 2, shockproof heat pad screw 3 and crash roll 4, main frame 1 is by bluetooth module, the button detection module, power transfer module, microphone and 16 needle connectors are formed, and button is contained on the steering wheel, and main frame 1 is connected by 16 needle connectors in the main frame with button and car audio system respectively, shockproof heat pad screw 3, crash roll 4 are fixed on main frame 1 one ends, and half sheath body 2 is enclosed within the main frame other end.

As shown in Figure 1, main frame 1 is by bluetooth module, the button detection module, and power transfer module, microphone and 16 needle connectors are formed, and the audio signal of Bluetooth system output promotes the set of speakers sounding by the power amplifier of vehicle audio.Bluetooth system is by the processor in the control signal notice vehicle audio, the switching of control bluetooth handsfree audio signal and vehicle audio audio signal.In application of the present utility model, audio signal is monaural, but Bluetooth system possesses stereo fan-out capability.The output control signal is used to refer to and is shown with incoming call incoming call and exhalation, and this moment, the power amplifier of vehicle audio part should be opened.Button is contained on the steering wheel, and button inserts part and adopts numeral and analog sampling to detect many by key control that the single line input is realized.That Bluetooth antenna partly adopts is stable, reliable, high radiation efficiency and PIFA antenna cheaply.Power unit is by the various voltages of high efficiency power supply chip with the suitable bluetooth handsfree system of 24V power source conversion one-tenth of input.

As Fig. 3, in the utility model, button on the steering wheel comprises: volume increases button 5, volume-down keys 6 is answered button 7, hangs up button 8, pairing button 9, on steering wheel, be furnished with the Bluetooth operation switch, simple to the functional definition of button, and make things convenient for the driver to carry out when driving to answer cable address operation such as hang up the telephone.Improved fail safe greatly.

Microphone is that the microphone sender is towards human body at the sender of integrated two 2.5mm of bluetooth panel (driver top).This product and car audio system combination rationally utilize car audio system.Interior all entertainment systems (vehicle audio) of car can become quiet bluetooth call mode, the humanization designing of switching to automatically when the driver received calls.

In Fig. 2 and Fig. 4, shockproof heat pad screw 3, crash roll 4 are fixed on the main frame 1, half sheath body 2 is enclosed within on the main frame 1, main frame 1 integral body that will have half sheath body 2 pushes on the Top Tank of driver top.So just finished fixing.The position at microphone 1 inclined to one side 60 degree angles directly over the driver.Good speech range and effect attractive in appearance will have been guaranteed like this.

This product has adopted the DSP and CVC (Clear Voice Capture (CVC)) technology of BlueCore3-multimedia integration aspect noise filtering, the BlueCore3-multimedia is a kind of bluetooth radio and base band integrated circuit of single-chip, and it has been equipped with DSP and stereo CODEC on the internal flash of 8Mbits and the sheet.Its Embedded Kalimba DSP nuclear is a kind of open platform coprocessor, supports various enhancement mode voice applications, as echo and de-noising function.In addition, this product has also adopted CVC (echo and de-noising solution) technology, and it can improve speech communication in various environment.Different with the competing technology of many inhibition noises, the CVC technology is come isolating speech signals by the time-domain signal extracting method of patent, simultaneously considers to improve voice quality under hardware configuration, audio interface, operating system or the speech recognition application situation need not.At sound output, this Bluetooth hands-free equipment is connected with differential mode output audio signal with the main frame sound equipment, good tonequality signal-to-noise performance is arranged. this Bluetooth chip, make that also the transmitting-receiving radio-frequency performance of this product is good, and with mobile phone on the market good compatibility is arranged also.

Claims

1. on-vehicle Bluetooth Handless system, it is characterized in that: comprise main frame, button, car audio system, half sheath body, shockproof heat pad screw and crash roll, main frame is by bluetooth module, the button detection module, power transfer module, microphone and connector are formed, and button is contained on the steering wheel, and main frame is connected by the connector in the main frame with button and car audio system respectively, shockproof heat pad screw, crash roll are fixed on main frame one end, and half sheath body is enclosed within the main frame other end.