Multifunctional three-Bluetooth electric vehicle instrument system supporting vehicle talkback

Abstract

The utility model relates to a multifunctional three-Bluetooth electric vehicle instrument system supporting intercommunication on a vehicle. The multifunctional three-Bluetooth electric vehicle instrument system comprises a main control module, a Bluetooth communication module, a Bluetooth intercommunication module and a Bluetooth key module, wherein the Bluetooth communication module, the Bluetooth intercommunication module and the Bluetooth key module are respectively connected with the main control module; the Bluetooth communication module is used for being in Bluetooth wireless connection with a mobile terminal, and the Bluetooth talkback module is used for being in Bluetooth wireless connection with helmet Bluetooth, so that a driver can answer an incoming call of the mobile terminal through the Bluetooth helmet or play an audio file in the mobile terminal; meanwhile, the Bluetooth talkback module can be wirelessly connected with two Bluetooth helmets, so that real-time communication between a driver and a passenger is realized, the influence of external noise is avoided, and barrier-free communication is carried out. Besides, the Bluetooth key module is in wireless connection with the Bluetooth key, the distance between the Bluetooth key and the vehicle is detected, and unlocking and locking of the vehicle are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle communication systems, in particular to a multifunctional three-Bluetooth electric vehicle instrument system supporting on-vehicle intercom. Background Art

[0002] With the increasing number of cars, traffic jams have brought a lot of inconvenience to people's daily travel. Therefore, electric vehicles and motorcycles are popular among people for their convenience, making two-wheeled electric vehicles one of the common means of transportation for people.

[0003] People will encounter some inconveniences when using electric vehicles. For example, when riding a bicycle, a call suddenly comes in, but the mobile phone is in the pocket, which is difficult to detect. Even if you notice the call, it is not convenient to take out the mobile phone to answer it for safety reasons when sitting on a two-wheeled electric vehicle, and it is inevitable to miss important calls. Even if you answer the phone while sitting on an electric vehicle, it is not easy to hear the other party's words clearly due to the loud noise. And because of the loud wind noise and road noise, when two people sitting on the same electric vehicle talk, they cannot hear each other's words clearly, making it impossible for the front and back seats to communicate normally. Utility Model Content

[0004] In view of this, it is necessary to provide a multifunctional three-Bluetooth electric vehicle instrument system that supports on-board intercom and can achieve smooth communication and ensure safe driving of the vehicle.

[0005] A multifunctional three-Bluetooth electric vehicle instrument system supporting on-board intercom, comprising a main control module and a Bluetooth communication module, a Bluetooth intercom module and a Bluetooth key module respectively connected to the main control module; the Bluetooth communication module comprises a first Bluetooth chip U5003, the Bluetooth communication module is used for Bluetooth connection with a mobile terminal to complete Bluetooth call and music playback functions; the Bluetooth intercom module comprises a second Bluetooth chip U41, the Bluetooth intercom module is used for Bluetooth connection with two helmets to realize the intercom function between the two helmets; the Bluetooth key module comprises a third Bluetooth chip U1, which is used for Bluetooth connection with a Bluetooth key to realize the locking and unlocking functions of the vehicle.

[0006] Preferably, the WB-R-2G pin of the first Bluetooth chip U5003 is connected to the first Bluetooth antenna through a low-pass filter U5002; the BT-DATA pin of the first Bluetooth chip U5003 is connected to the main control module for receiving control instructions from the main control module; the BT-CLK pin of the first Bluetooth chip U5003 is connected to the main control module for receiving a clock signal; the BT-IP pin, BT-IN pin, BT-QP pin and BT-QN pin of the first Bluetooth chip U5003 are connected to the main control module for transmitting baseband IQ signals between the first Bluetooth chip U5003 and the main control module.

[0007] Preferably, the EXT-ANT pin of the second Bluetooth chip U41 is connected to the second Bluetooth antenna through the 137th resistor R137, the two ends of the 137th resistor R137 are respectively grounded through the 152nd capacitor C152 and the 153rd capacitor C153, and the second Bluetooth antenna is grounded through the 259th capacitor C259; the I2S-CLK pin, I2S-DO pin, I2S-DI pin and I2SWS pin of the second Bluetooth chip U41 are connected to the SPI-CLK pin, SPI-MO pin, SPI-MI pin and SPI-CSB pin of the main control module, which are used for serial communication between the second Bluetooth chip U41 and the main control module.

[0008] Preferably, the RF pin of the third Bluetooth chip U1 is connected to the third Bluetooth antenna through the eighty-ninth capacitor C89, both ends of the eighty-ninth capacitor C89 are grounded through the first capacitor C1 and the eighty-eighth capacitor C88, and the third Bluetooth antenna is grounded through the eighty-seventh capacitor C87; the PA4 pin and the PA5 pin of the third Bluetooth chip U1 are connected to the BT input and output interface through the fifty-third resistor R53 and the fifty-fourth resistor R54, respectively, and the BT input and output interface includes a BT-RX pin and a BT-TX pin for serial data transmission with the main control module. Communication; the DC output pin BSW of the third Bluetooth chip U1 is connected to the second eighty-five inductor L2805, the second eighty-one-fourth capacitor C2814 and the second eighty-one-thirteenth capacitor C2813, after the second eighty-one-fourth capacitor C2814 and the second eighty-one-thirteenth capacitor C2813 are connected in parallel, one end is connected to the second eighty-five inductor L2805, and the other end is grounded; the DC feedback input pin BFB of the third Bluetooth chip U1 is connected to the midpoint between the second eighty-five inductor L2805 and the parallel second eighty-one-fourth capacitor C2814 and the second eighty-one-thirteenth capacitor C2813.

[0009] Preferably, the main control module is connected to the Bluetooth communication module, the Bluetooth intercom module and the Bluetooth key module through an SPI serial interface to complete the transmission of control instructions between the main control module and the Bluetooth communication module, the Bluetooth intercom module and the Bluetooth key module; the main control module is connected to the Bluetooth communication module and the Bluetooth intercom module through an I2S serial interface to complete the transmission of data information between the main control module and the Bluetooth communication module and the Bluetooth intercom module.

[0010] Preferably, it also includes a vehicle management communication module U34, the CAN-TX pin and CAN-RX pin of the vehicle management communication module U34 are connected to the main control module, and the CANH pin and CANL pin of the vehicle management communication module U34 are connected to the vehicle CAN device to realize the conversion of the CAN interface to the SPI serial interface, complete the communication between the vehicle CAN device and the main control module, and realize the transmission of vehicle operation information and control signals.

[0011] Preferably, it also includes a display screen driving module and an image acquisition module. The display screen driving module is connected to the LCD display screen to realize external display and touch functions; the image acquisition module is connected to the front and rear cameras to realize the road condition monitoring function of the front and rear of the vehicle.

[0012] In the above-mentioned multifunctional three-Bluetooth electric vehicle instrument system that supports on-board intercom, the Bluetooth communication module is used for Bluetooth wireless connection with the mobile terminal, and the Bluetooth intercom module is used for Bluetooth wireless connection with the helmet Bluetooth, so that the driver can answer calls from the mobile terminal through the Bluetooth helmet, or play audio files in the mobile terminal; at the same time, the Bluetooth intercom module can wirelessly connect two Bluetooth helmets to achieve real-time communication between the driver and the passengers, without being affected by external noise, and conduct barrier-free communication. In addition, the Bluetooth key module is wirelessly connected to the Bluetooth key to detect the distance between the Bluetooth key and the vehicle, which facilitates the unlocking and locking of the vehicle. The utility model has a simple structure, is easy to implement, has low cost, and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of a multifunctional three-Bluetooth electric vehicle instrument system supporting on-board intercom according to an embodiment of the present utility model.

[0014] Figure 2 The utility model is a circuit structure diagram of a Bluetooth communication module of a multifunctional three-Bluetooth electric vehicle instrument system supporting on-board intercom in an embodiment of the present invention.

[0015] Figure 3 The utility model is a circuit structure diagram of a Bluetooth intercom module of a multifunctional three-Bluetooth electric vehicle instrument system supporting on-board intercom in an embodiment of the present invention.

[0016] Figure 4 The utility model is a circuit structure diagram of a Bluetooth key module of a multifunctional three-Bluetooth electric vehicle instrument system supporting on-board intercom in an embodiment of the present invention.

[0017] Figure 5 The utility model is a circuit structure diagram of a vehicle management communication module of a multifunctional three-Bluetooth electric vehicle instrument system supporting on-board intercom in an embodiment of the present utility model. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0019] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , showing a multifunctional three-Bluetooth electric vehicle instrument system 100 supporting on-board intercom provided by an embodiment of the utility model, including a main control module 10 and a Bluetooth communication module 20, a Bluetooth intercom module 30 and a Bluetooth key module 40 respectively connected to the main control module 10; the Bluetooth communication module 20 includes a first Bluetooth chip U5003, and the Bluetooth communication module 20 is used for Bluetooth connection with a mobile terminal to complete Bluetooth call and music playback functions; the Bluetooth intercom module 30 includes a second Bluetooth chip U41, and the Bluetooth intercom module 30 is used for Bluetooth connection with two helmets to realize the intercom function between the two helmets; the Bluetooth key module 40 includes a third Bluetooth chip U1, which is used for Bluetooth connection with a Bluetooth key to realize the locking and unlocking functions of the vehicle.

[0020] Preferably, the WB-R-2G pin of the first Bluetooth chip U5003 is connected to the first Bluetooth antenna 21 through a low-pass filter U5002; the BT-DATA pin of the first Bluetooth chip U5003 is connected to the main control module 10, for receiving control instructions from the main control module 10; the BT-CLK pin of the first Bluetooth chip U5003 is connected to the main control module 10, for receiving a clock signal; the BT-IP pin, BT-IN pin, BT-QP pin and BT-QN pin of the first Bluetooth chip U5003 are connected to the main control module 10, for realizing the transmission of baseband IQ signals between the first Bluetooth chip U5003 and the main control module 10.

[0021] Specifically, the test socket of the Bluetooth antenna is connected to the first Bluetooth chip U5003 by a 50-ohm coaxial cable.

[0022] Specifically, the first Bluetooth chip U5003 encrypts and modulates the received IQ signal and transmits it through the first Bluetooth antenna 21; at the same time, the RF signal received by the first Bluetooth antenna 21 is filtered and amplified, and then decrypted and demodulated by the first Bluetooth chip U5003 and transmitted to the main control module 10.

[0023] Specifically, in this embodiment, the first Bluetooth chip U5003 adopts the MT6631N chip, which not only has Bluetooth communication function, but also supports WIFI communication function, GPS receiver function, and FM receiver function, thereby realizing the vehicle's WIFI wireless communication, GPS positioning and FM radio functions.

[0024] Through the first Bluetooth chip U5003, Bluetooth connection with the mobile terminal can be achieved to complete Bluetooth communication, music playback and voice recognition functions.

[0025] Preferably, the EXT-ANT pin of the second Bluetooth chip U41 is connected to the second Bluetooth antenna 31 through the 137th resistor R137, the two ends of the 137th resistor R137 are respectively grounded through the 152nd capacitor C152 and the 153rd capacitor C153, and the second Bluetooth antenna 31 is grounded through the 259th capacitor C259; the I2S-CLK pin, I2S-DO pin, I2S-DI pin and I2SWS pin of the second Bluetooth chip U41 are connected to the SPI-CLK pin, SPI-MO pin, SPI-MI pin and SPI-CSB pin of the main control module 10, which are used for serial communication between the second Bluetooth chip U41 and the main control module 10.

[0026] Specifically, the second Bluetooth chip U41 adopts the BT906 chip, and the second Bluetooth antenna 31 of the second Bluetooth chip U41 wirelessly connects the earphones and microphones of two Bluetooth helmets to realize the intercom function between the two Bluetooth helmets. The two Bluetooth helmets are connected to the second Bluetooth chip U41 in a master-slave mode and make calls.

[0027] The SWDIO pin and SWCLK pin of the second Bluetooth chip U41 are connected to the SWD test interface for software debugging of Bluetooth signals.

[0028] Preferably, the RF pin of the third Bluetooth chip U1 is connected to the third Bluetooth antenna 41 through the eighty-ninth capacitor C89, the two ends of the eighty-ninth capacitor C89 are respectively grounded through the first capacitor C1 and the eighty-eighth capacitor C88, and the third Bluetooth antenna 41 is grounded through the eighty-seventh capacitor C87; the PA4 pin and the PA5 pin of the third Bluetooth chip U1 are respectively connected to the BT input and output interface through the fifty-third resistor R53 and the fifty-fourth resistor R54, and the BT input and output interface includes a BT-RX pin and a BT-TX pin for serial communication with the main control module 10. data communication; the DC output pin BSW of the third Bluetooth chip U1 is connected to the second eighty-five inductor L2805, the second eighty-one-fourth capacitor C2814 and the second eighty-one-thirteenth capacitor C2813, after the second eighty-one-fourth capacitor C2814 and the second eighty-one-thirteenth capacitor C2813 are connected in parallel, one end is connected to the second eighty-five inductor L2805, and the other end is grounded; the DC feedback input pin BFB of the third Bluetooth chip U1 is connected to the midpoint between the second eighty-five inductor L2805 and the parallel second eighty-one-fourth capacitor C2814 and the second eighty-one-thirteenth capacitor C2813.

[0029] Specifically, the third Bluetooth chip U1 adopts the FR8016HA chip and identifies the Bluetooth key through the third Bluetooth antenna 41. When the Bluetooth key is close to the vehicle, the third Bluetooth chip U1 identifies the Bluetooth key and the vehicle is automatically unlocked; when the Bluetooth key is away from the vehicle, the connection between the third Bluetooth chip U1 and the Bluetooth key is disconnected and the vehicle is automatically locked.

[0030] Preferably, the main control module 10 is connected to the Bluetooth communication module 20, the Bluetooth intercom module 30 and the Bluetooth key module 40 through an SPI serial interface to complete the transmission of control instructions between the main control module 10 and the Bluetooth communication module 20, the Bluetooth intercom module 30 and the Bluetooth key module 40; the main control module 10 is connected to the Bluetooth communication module 20 and the Bluetooth intercom module 30 through an I2S serial interface to complete the transmission of data information between the main control module 10 and the Bluetooth communication module 20 and the Bluetooth intercom module 30.

[0031] Specifically, the mobile terminal is wirelessly connected to the Bluetooth communication module 20, two Bluetooth helmets are wirelessly connected to the Bluetooth intercom module 30, the audio signal between the Bluetooth communication module 20 and the Bluetooth intercom module 30 is transmitted through the I2S serial interface between the main control module 10, and the control instructions of the Bluetooth communication module 20 and the Bluetooth intercom module 30 are transmitted through the SPI serial interface with the main control module 10.

[0032] When using a mobile terminal to make a call, the voice information of the Bluetooth helmet is first transmitted to the Bluetooth intercom module 30, and then transmitted to the main control module 10 through the I2S serial interface. The main control module 10 transmits it to the Bluetooth communication module 20 through the I2S serial interface. The Bluetooth communication module 20 wirelessly transmits it to the mobile terminal through the first Bluetooth antenna 21, and finally the mobile terminal establishes a call connection with the other party; when answering a call, the transmission direction of the voice data is opposite.

[0033] When listening to music, the audio signal is transmitted from the mobile terminal to the main control module 10 through the I2S serial interface of the Bluetooth communication module 20, and then the main control module 10 transmits it to the Bluetooth intercom module 30 through the I2S serial interface, and finally the Bluetooth intercom module 30 wirelessly transmits it to the Bluetooth helmet.

[0034] When two Bluetooth helmets talk to each other, the telephone function is suspended, and the voice between the two Bluetooth helmets is transmitted in real time by the Bluetooth intercom module 30 to achieve intercom.

[0035] Preferably, it also includes a vehicle management communication module U34, the CAN-TX pin and CAN-RX pin of the vehicle management communication module U34 are connected to the main control module 10, and the CANH pin and CANL pin of the vehicle management communication module U34 are connected to the vehicle CAN device to realize the conversion of the CAN interface to the SPI serial interface, complete the communication between the vehicle CAN device and the main control module 10, and realize the transmission of vehicle operation information and control signals.

[0036] Preferably, it also includes a display screen driving module and an image acquisition module. The display screen driving module is connected to the LCD display screen to realize external display and touch functions; the image acquisition module is connected to the front and rear cameras to realize the road condition monitoring function of the front and rear of the vehicle.

[0037] Specifically, it also includes a power management module, which is used to provide working power for the main control module 10 and various functional modules connected thereto.

[0038] Specifically, in this embodiment, the main control module 10 adopts the AC8257 chip, which can provide multi-standard audio and video codecs and rich peripheral interfaces, support 1080P high-definition display, and can realize multi-channel high-definition video input at the same time.

[0039] In the above-mentioned multifunctional three-Bluetooth electric vehicle instrument system that supports on-board intercom, the Bluetooth communication module is used for Bluetooth wireless connection with the mobile terminal, and the Bluetooth intercom module is used for Bluetooth wireless connection with the helmet Bluetooth, so that the driver can answer calls from the mobile terminal through the Bluetooth helmet, or play audio files in the mobile terminal; at the same time, the Bluetooth intercom module can wirelessly connect two Bluetooth helmets to achieve real-time communication between the driver and the passengers, without being affected by external noise, and conduct barrier-free communication. In addition, the Bluetooth key module is wirelessly connected to the Bluetooth key to detect the distance between the Bluetooth key and the vehicle, which facilitates the unlocking and locking of the vehicle. The utility model has a simple structure, is easy to implement, has low cost, and is easy to promote.

[0040] It should be noted that the present invention is not limited to the above-mentioned embodiments. According to the creative spirit of the present invention, those skilled in the art may also make other changes. These changes made according to the creative spirit of the present invention should be included in the scope of protection required by the present invention.

Claims

1. A multifunctional three-Bluetooth electric vehicle instrument system supporting on-board intercom, characterized in that: It includes a main control module and a Bluetooth communication module, a Bluetooth intercom module and a Bluetooth key module respectively connected to the main control module; the Bluetooth communication module includes a first Bluetooth chip U5003, and the Bluetooth communication module is used for Bluetooth connection with a mobile terminal to complete Bluetooth call and music playback functions; the Bluetooth intercom module includes a second Bluetooth chip U41, and the Bluetooth intercom module is used for Bluetooth connection with two helmets to realize the intercom function between the two helmets; the Bluetooth key module includes a third Bluetooth chip U1, which is used for Bluetooth connection with a Bluetooth key to realize the locking and unlocking functions of the vehicle.

2. The multifunctional three-Bluetooth electric vehicle instrument system supporting on-board intercom as claimed in claim 1, characterized in that: The WB-R-2G pin of the first Bluetooth chip U5003 is connected to the first Bluetooth antenna through a low-pass filter U5002; the BT-DATA pin of the first Bluetooth chip U5003 is connected to the main control module for receiving control instructions from the main control module; the BT-CLK pin of the first Bluetooth chip U5003 is connected to the main control module for receiving a clock signal; the BT-IP pin, BT-IN pin, BT-QP pin and BT-QN pin of the first Bluetooth chip U5003 are connected to the main control module for transmitting baseband IQ signals between the first Bluetooth chip U5003 and the main control module.

3. The multifunctional three-Bluetooth electric vehicle instrument system supporting on-board intercom as claimed in claim 1, characterized in that: The EXT-ANT pin of the second Bluetooth chip U41 is connected to the second Bluetooth antenna through the 137th resistor R137, the two ends of the 137th resistor R137 are respectively grounded through the 152nd capacitor C152 and the 153rd capacitor C153, and the second Bluetooth antenna is grounded through the 259th capacitor C259; the I2S-CLK pin, I2S-DO pin, I2S-DI pin and I2SWS pin of the second Bluetooth chip U41 are connected to the SPI-CLK pin, SPI-MO pin, SPI-MI pin and SPI-CSB pin of the main control module, which are used for serial communication between the second Bluetooth chip U41 and the main control module.

4. The multifunctional three-Bluetooth electric vehicle instrument system supporting on-board intercom as claimed in claim 1, characterized in that: The RF pin of the third Bluetooth chip U1 is connected to the third Bluetooth antenna through the eighty-ninth capacitor C89, and both ends of the eighty-ninth capacitor C89 are grounded through the first capacitor C1 and the eighty-eighth capacitor C88 respectively, and the third Bluetooth antenna is grounded through the eighty-seventh capacitor C87; the PA4 pin and the PA5 pin of the third Bluetooth chip U1 are connected to the BT input and output interface through the fifty-third resistor R53 and the fifty-fourth resistor R54 respectively, and the BT input and output interface includes a BT-RX pin and a BT-TX pin for serial data communication with the main control module ; The DC output pin BSW of the third Bluetooth chip U1 is connected to the second eighty-five inductor L2805, the second eighty-one-fourth capacitor C2814 and the second eighty-one-thirteenth capacitor C2813. After the second eighty-one-fourth capacitor C2814 and the second eighty-one-thirteenth capacitor C2813 are connected in parallel, one end is connected to the second eighty-five inductor L2805, and the other end is grounded; The DC feedback input pin BFB of the third Bluetooth chip U1 is connected to the midpoint between the second eighty-five inductor L2805 and the second eighty-one-fourth capacitor C2814 and the second eighty-one-thirteenth capacitor C2813 connected in parallel.

5. The multifunctional three-Bluetooth electric vehicle instrument system supporting on-vehicle intercom as claimed in claim 1, characterized in that: The main control module is connected to the Bluetooth communication module, the Bluetooth intercom module and the Bluetooth key module through an SPI serial interface to complete the transmission of control instructions between the main control module and the Bluetooth communication module, the Bluetooth intercom module and the Bluetooth key module; the main control module is connected to the Bluetooth communication module and the Bluetooth intercom module through an I2S serial interface to complete the transmission of data information between the main control module and the Bluetooth communication module and the Bluetooth intercom module.

6. The multifunctional three-Bluetooth electric vehicle instrument system supporting on-vehicle intercom as claimed in claim 1, characterized in that: It also includes a vehicle management communication module U34, the CAN-TX pin and CAN-RX pin of the vehicle management communication module U34 are connected to the main control module, and the CANH pin and CANL pin of the vehicle management communication module U34 are connected to the vehicle CAN device to realize the conversion of the CAN interface to the SPI serial interface, complete the communication between the vehicle CAN device and the main control module, and realize the transmission of vehicle operation information and control signals.

7. The multifunctional three-Bluetooth electric vehicle instrument system supporting on-vehicle intercom as claimed in claim 1, characterized in that: It also includes a display screen driver module and an image acquisition module. The display screen driver module is connected to the LCD display screen to realize external display and touch functions; the image acquisition module is connected to the front and rear cameras to realize the road condition monitoring function of the front and rear of the vehicle.

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