CN110588545A - T-BOX with AVAS function - Google Patents

T-BOX with AVAS function Download PDF

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Publication number
CN110588545A
CN110588545A CN201910939753.1A CN201910939753A CN110588545A CN 110588545 A CN110588545 A CN 110588545A CN 201910939753 A CN201910939753 A CN 201910939753A CN 110588545 A CN110588545 A CN 110588545A
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CN
China
Prior art keywords
capacitor
resistor
pin
chip
grounded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910939753.1A
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Chinese (zh)
Inventor
刘贵生
张鑫
刘志钢
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Jilin Beidou Aerospace Automobile Research Institute Co Ltd
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Jilin Beidou Aerospace Automobile Research Institute Co Ltd
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Priority to CN201910939753.1A priority Critical patent/CN110588545A/en
Publication of CN110588545A publication Critical patent/CN110588545A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
    • B60Q5/008—Arrangement or adaptation of acoustic signal devices automatically actuated for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Amplifiers (AREA)

Abstract

A T-BOX with AVAS function comprises a shell, and a power module, a main control module, an audio output module, a CAN interface, a positioning module and a communication module which are arranged in the shell, wherein the audio output module comprises a digital-to-analog conversion chip and an audio power amplifier which are connected, a microphone interface is designed on the digital-to-analog conversion chip, and a vehicle built-in loudspeaker interface and a vehicle external loudspeaker interface are arranged on the audio power amplifier. Compared with the prior art, the T-BOX with the AVAS function provided by the invention has the following advantages: 1. the same functional module is utilized to realize high integration level design, improve the module utilization rate, reduce the cost and improve the system reliability; 2. the audio output module is integrated with a digital-to-analog conversion chip, can perform basic DSP processing, can help a voice system to shield environmental noise and system echo, and reduces distortion while improving sensitivity.

Description

T-BOX with AVAS function
Technical Field
The invention relates to a T-BOX, in particular to a T-BOX with AVAS function.
Background
The T-BOX and the AVAS system are both new energy vehicle national standard configuration systems, the existing T-BOX acquires the vehicle state through a CAN bus, and the vehicle state and the position are sent to the cloud platform through a 4G communication module and a GPS positioning module, so that the cloud platform monitors the vehicle running state; the voice module can be used for realizing the conversation between the driver and the cloud platform and carrying out manual remote rescue. The existing AVAS system obtains the vehicle state through a CAN bus, performs parameter effect operation through a main control module, performs simulated sound effect adjustment through a sound wave module, pushes an external loudspeaker and sends out a simulated engine sound wave function. The relatively independent T-BOX and AVAS systems not only have low assembly efficiency, but also result in higher overall vehicle cost.
Disclosure of Invention
The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a T-BOX with AVAS function.
The T-BOX with AVAS function provided by the invention adopts the main technical scheme that: include the casing and establish power module, host system, audio output module, CAN interface, orientation module and communication module in the casing, power module, audio output module, CAN interface, orientation module and communication module all with host system connects, power module with orientation module the CAN interface with audio output module connects respectively, audio output module with communication module connects its characterized in that: the audio output module is respectively connected with the communication module and the main control module, and a vehicle built-in loudspeaker interface and a vehicle external loudspeaker interface are arranged on the audio output module.
The T-BOX with AVAS function provided by the invention also adopts the following subsidiary technical scheme:
the digital-to-analog conversion chip is connected with the main control module through an I2C bus.
The audio power amplifier is a two-channel D-type audio power amplifier.
The positioning module is a GPS positioning module or a Beidou positioning module.
The communication module is a 4G module.
The power module comprises a 5V system, a 3.8V system and a 3.3V system, the 5V system comprises a CAN interface module and an audio output module, the 3.8V system comprises a 4G communication module, the 3.3V system comprises a main control module and a positioning module, the 5V system comprises a chip U1, a resistor R1, a voltage stabilizing diode D1, a capacitor C1, an electrolytic capacitor C1, an inductor L1, a bidirectional voltage stabilizing diode D1, a Schottky diode D1, a resistor R1, a composite diode D1, a bidirectional voltage stabilizing diode D1, a resistor R1, a capacitor C1, an NPN triode Q1, a resistor R1, a capacitor C1, a Schottky diode D1, an inductor L1, a resistor R1, a magnetic bead, a capacitor C1 and a capacitor C1, wherein the capacitor C1 comprises the, The 3.8V system comprises a resistor R13, a resistor R202, an electrolytic capacitor C10, a capacitor C11 and a magnetic bead FB1, wherein the 3.8V system comprises a resistor R14, a capacitor C15, a magnetic bead FB8, a resistor R15, a resistor R16, a capacitor C13, a magnetic bead FB6 and an electrolytic capacitor C84, the electrolytic capacitor C1, the capacitor C2 and the capacitor C3 are connected in parallel, a parallel end to which an anode of the electrolytic capacitor C1 belongs is connected with one end of an inductor L1 and simultaneously connected with one end of the resistor R1 and a pin VIN of the chip U1, the other end of the inductor L1 is connected with a cathode of the schottky diode and one end of a bidirectional zener diode D3, the other end of the bidirectional zener diode D3 and the other ends of the electrolytic capacitor C1, the capacitor C2 and the capacitor C3 which are connected in parallel are connected with ground, and the other end of the schottky diode D1 is connected with the main control module; the other end of the resistor R1, one end of the resistor R2 and the end to which the negative electrode of the voltage stabilizing diode D2 belongs are connected with the main control module, and the other end of the voltage stabilizing diode D2 and the other end of the resistor R2 are both grounded; a pin EN of the chip U1 is connected to a pin 3 of the end to which the cathode of the composite diode D4 belongs, one end of the resistor R5 and one end of the capacitor C5 are all connected, the other end of the resistor R5 and the other end of the capacitor C5 are all grounded, a pin 1 of the end to which the anode of the composite diode D4 belongs is connected to one end of the resistor R3, the other end of the resistor R3 is connected to the main control module, a pin 2 of the end to which the anode of the composite diode D4 belongs is connected to one end of the resistor R4, the other end of the resistor R4 is connected to one end of the resistor R7 and one end of the bidirectional zener diode, the other end of the bidirectional zener diode D5 is grounded, the other end of the resistor R7 is connected to one end of the resistor R8, one end of the capacitor C8 and the base of the NPN type triode Q1, and the other end of the resistor R8 is connected to one end of the capacitor, The other end of the capacitor C8 and an emitting electrode of the NPN type triode are grounded, and a collector electrode of the NPN type triode is connected with the main control module; a pin RT/SYNC of the chip U1 is connected with one end of the resistor R9 and one end of the resistor R10, the other end of the resistor R9, the other end of the resistor R10 and one end of the capacitor C9 are both grounded, and the other end of the capacitor C9 is connected with a pin SS of the chip U1; a pin BOOT of the chip U1 is connected to one end of the capacitor C4, the other end of the capacitor C4 is connected to the pin SW of the chip U1, one end of the schottky diode D6 and one end of the inductor L2, the other end of the schottky diode D6 is grounded, the other end of the inductor L2 is connected to one end of the resistor R6, the positive terminal of the electrolytic capacitor C6 and one end of the capacitor C7, the other end of the resistor R6 is connected to the pin FB of the chip U1 and one end of the resistor R11, and the other end of the resistor R11, the other end of the electrolytic capacitor C6 and the other end of the capacitor C7 are grounded; a pin EN of the chip U2, a pin IN of the chip U2 and one end of the capacitor C12 are all connected, the other end of the capacitor C12 and one end of the magnetic bead FB5 are grounded, the other end of the magnetic bead FB5 is grounded, a pin OUT of the chip U2, one end of the resistor R12, the end to which the anode of the electrolytic capacitor C10 belongs, one end of the capacitor C11 and one end of the magnetic bead FB1 are all connected, the other end of the magnetic bead FB1 is connected to the main control module, the other end of the resistor R12 is connected to a pin ADJ of the chip U2, one end of the resistor R13 and one end of the resistor R202, and the other end of the resistor R13 is connected to the other end of the resistor R202, the other end of the electrolytic capacitor C10 and the other end of the capacitor C11 are all grounded; the pin EN of the chip U3 is connected with one end of the resistor R14, the other end of the resistor R14 is connected with the main control module, the pin IN of the chip U3 is connected with the capacitor C15, the other end of the capacitor C5 and one end of the magnetic bead FB8 are both grounded, the other interface of the magnetic bead FB8 is grounded, the pin OUT of the chip U3, one end of the resistor R15, one end of the capacitor C13 and one end of the magnetic bead FB6 are all connected, the other end of the magnetic bead FB6 is connected with the pin VABT of the chip U13 of the 4G module and the positive electrode of the electrolytic capacitor C84, the other end of the resistor R15 is connected with the pin ADJ of the chip U3 and one end of the resistor R16, and the other end of the resistor R16 is connected with the other end of the capacitor C13 and the other end of the electrolytic capacitor C84.
The main control module comprises a chip U7, a capacitor C23, a capacitor C41, a capacitor C42, a three-pin connector J4, a capacitor C36, a resistor 201, a capacitor C47, a capacitor C48, a resistor R56, a capacitor C54, a capacitor C55, a thyristor X1, a capacitor C50, a resistor R59, a pin PD5 of the chip U7, a pin PD6 of the chip U7, a pin PD7 of the chip U7 and a pin PD14 of the chip U7, wherein a pin VSS _ LV3 of the chip U7 is grounded and is connected with one end of the capacitor C24, and the other end of the capacitor C24 is connected with a pin VDD _ LV3 of the capacitor; a pin VDD _ HV3 of the chip U7 is connected with the master control module and one end of the capacitor C23, and the other end of the capacitor C23 is grounded and is connected with a pin VSS _ HV4 of the chip U7; a pin VSS _ HV2 of the chip U7 is grounded and is connected with one end of the capacitor C37, and the other end of the capacitor C37 is connected with a pin VDD _ HV2 of the chip U7; a pin VSS _ LV2 of the chip U7 is grounded and is connected with one end of the capacitor C42, and the other end of the capacitor C42 is connected with a pin VDD _ LV2 of the chip U7; a pin VDD _ BV of the chip U7 is connected with the master control module and one end of the capacitor C41, and the other end of the capacitor C41 is grounded and connected with a pin VSS _ HV3 of the chip U7; a pin VDD _ HV of the chip U7 is connected with the master control module and one end of the capacitor C36, and the other end of the capacitor C36 is grounded and is connected with a pin VSS _ HV of the chip U7; a pin PD [10] of the chip U7 is connected with one end of the resistor R201 and simultaneously connected with a pin PB11 of the chip U7, and the other end of the resistor R201 is connected with the main control module; a pin VDD _ HV _ ADC of the chip U7 is connected with the master control module and is also connected with one end of the capacitor C47 connected with the capacitor C48 in parallel, and the other end of the capacitor C47 connected with the capacitor C48 in parallel is connected with the pin VSS _ HV _ ADC of the chip U7; a pin PD6 of the chip U7 is connected with one end of the resistor R59 and simultaneously connected with a pin PD [12] of the chip U7 and a pin PD6 of the chip U7; one end of the resistor R56 connected with the thyristor X1 in parallel is connected with one end of the capacitor C54, the other end of the resistor R56 connected with the thyristor X1 in parallel is connected with one end of the capacitor C55, and the other end of the capacitor C54 and the other end of the capacitor C55 are both grounded; a pin PD5 of the chip U7 is connected with the other end of the Schottky diode D1; a pin PD6 of the chip U7 is connected with the other end of the resistor R3 and the collector of the NPN type triode; a pin PD7 of the chip U7 is connected with the end to which the cathode of the voltage-stabilizing diode D2 belongs; and the pin PD14 of the chip U7 is connected with the other end of the resistor R14.
The CAN interface comprises a chip U6, a resistor R42, a resistor R43, a resistor R47, a capacitor C35, a capacitor C33, a capacitor C34, a common mode filter L4, a resistor 44, a resistor 45, a capacitor C32, a capacitor C26, a capacitor C27 and a two-wire CAN bus protector E1, wherein a pin S of the chip U6 is connected with one end of the resistor R42 and one end of the resistor R43, the other end of the resistor R43 is grounded, and the other end of the resistor R42 is connected with a pin PE10 of the chip U7; a pin CANH of the chip U6 is connected to a first input terminal of the common mode filter L4 and also connected to one end of the capacitor C33, the other end of the resistor C33 is grounded, a pin CANL of the chip U6 is connected to a second input terminal of the common mode filter L4 and also connected to one end of the capacitor C34, the other end of the capacitor C34 is grounded, one end of the resistor R44, one end of the capacitor C26 and a first pin of the two-wire CAN bus protector E1 are all connected to a first output terminal of the common mode filter L4, one end of the resistor R45, one end of the capacitor C27 and a second pin of the two-wire CAN bus protector E1 are all connected to a second output terminal of the common mode filter L4, a third pin of the two-wire CAN bus protector E1, the other end of the capacitor C27 and the other end of the capacitor C26 are all connected to one end of the capacitor C32 and also connected to ground, and the other end of the resistor R44 is, The other end of the resistor R45 is connected to the other end of the capacitor C32, meanwhile, the first output end of the common mode filter L4 is connected to the chip U7, the second output end of the common mode filter L4 is connected to the chip U7, the pin TXD of the CAN communication circuit is connected to the pin CANOTX of the main control module, and the pin RXD of the CAN communication circuit is connected to the pin CANORX of the main control module.
The communication module comprises a chip U13, a resistor R65, a capacitor C64, a capacitor C65, a socket J6, a capacitor C72, a resistor R71, a resistor R72, a resistor R70, an NPN triode Q5, a light emitting diode D11, a light emitting diode D12, a resistor R74, an NPN resistor Q6, a resistor R77, a resistor R76, a capacitor C77, a light emitting diode D13, a resistor R83, a capacitor C80, a capacitor C81 and a capacitor C82, wherein a pin ANT _ MAIN of the chip U13, one end of the resistor R65 and one end of the capacitor C64 are connected, the other end of the capacitor C64 and one end of the capacitor C65 are grounded, the other end of the capacitor C65 is connected with the other end of the resistor R65 and one end of the socket J6, and the other end of the socket J6 is grounded; a pin RING of the chip U13 is connected to one end of the resistor R71 and one end of the capacitor C72, the other end of the capacitor C72 is grounded, an emitter of the NPN type triode Q5 and one end of the resistor R72 are both grounded, the other end of the resistor R72 is connected to the other end of the resistor R71 and is also connected to a base of the NPN type triode, a collector of the NPN type triode is connected to one end of the resistor R70, and the other end of the resistor R70 is connected to the end of the light emitting diode D11 to which the negative electrode belongs; a pin NET _ LIGHT of the chip is connected with one end of the capacitor C77 and one end of the resistor R76, the other end of the capacitor C77 is grounded, an emitter of the NPN type triode Q6 is grounded and is also connected with one end of the resistor R77, the other end of the resistor R77 is connected with the other end of the resistor R76 and is also connected with a base electrode of the NPN type triode, a collector of the NPN type triode is connected with one end of the resistor R74, and the end of the LIGHT-emitting diode D12, to which the negative electrode belongs, is connected with the other end of the resistor R74; the cathode of the light emitting diode D13 is connected with one end of the resistor R83, and the other end of the resistor R83 is grounded; one end of the capacitor C80, the capacitor C81 and the capacitor C82 connected in parallel is grounded, and the other end of the capacitor C80, the capacitor C81 and the capacitor C82 connected in parallel is connected with a pin VABT of the chip U13, the other end of the light emitting diode D11, the other end of the light emitting diode D12 and the other end of the light emitting diode D13.
The positioning module comprises a chip U12, a magnetic bead FB11, a resistor R66, a resistor R68, a capacitor 68, a capacitor 69, a capacitor 70, a microstrip line, a socket J7, an inductor FB13, a capacitor C66, a capacitor C67, a resistor R67, a light emitting diode D10, a resistor R69 and a capacitor C71, wherein a pin TXD1 of the chip U12 is connected with one end of the resistor R66, the other end of the resistor R66 is connected with a pin PC9 of the main control module, a pin RXD1 of the chip U12 is connected with one end of the resistor R68, and the other end of the resistor R68 is connected with a pin PC9 of the main control module; one end of the capacitor C68, the capacitor C69 and the capacitor C70 which are connected in parallel is connected with a pin VCC of the chip U12 and one end of the magnetic bead FB11, the other end of the capacitor C69 is connected with a pin GND of the chip U12, and the other end of the magnetic bead FB11 is connected with the main control module; a pin RF _ IN of the chip U12 is connected with one end of the microstrip line, the other end of the microstrip line is connected with one end of a socket J7, the other end of the socket J7 is grounded, one end of the capacitor C66, which is connected with the capacitor C67 IN parallel, is connected with one end of a pin VCC _ RF of the chip U12 and one end of the inductor FB13, the other end of the inductor FB13 is connected with the microstrip line, and the other end of the capacitor C66, which is connected with the capacitor C67 IN parallel, is grounded; the pin PULSE of the chip U12 is connected with one end of the resistor R67, the other end of the resistor R67 is connected with the end to which the anode of the light-emitting diode D10 belongs, and the other end of the light-emitting diode D10 is grounded; the pin NRESET of the chip U12 is connected with one end of the capacitor C71 and one end of the resistor R69, the other end of the resistor R69 is connected with the pin VCC of the chip U12, and the other end of the capacitor C71 is grounded.
The audio output module comprises a chip U16, a resistor R114, a resistor R113, an NPN type triode VT1, a resistor R115, an electrolytic capacitor E117, a capacitor C116, a capacitor C117, a resistor R116, a capacitor C122, a capacitor C123, a capacitor C120, a capacitor C121, a capacitor C125, a magnetic bead FB120, an inductor LA111, a capacitor C131, a capacitor C129, a capacitor C132, a capacitor C130, a capacitor C126, a magnetic bead FB122, an inductor LA112, an electrolytic capacitor E118, a capacitor C133 and a capacitor C134, wherein an emitter of the NPN type triode is grounded, a base of the NPN type triode is connected with one end of the resistor R113, a collector of the NPN type triode is connected with one end of the resistor R114 and an SD pin of the chip U16, and the other port of the resistor R113 is connected with the chip U7; the resistor R115 is connected with a pin FAULT of the chip U16; one end of the electrolytic capacitor E117, the capacitor C116 and the capacitor C117 which are connected in parallel is connected with the pin PVCCL of the chip U16, and the other end of the electrolytic capacitor E117, the capacitor C116 and the capacitor C117 which are connected in parallel is grounded; one end of the capacitor C125 is connected to the pin OUTPL of the chip U16, the pin OUTNL of the chip U16, and one end of the magnetic bead FB120, the other end of the capacitor C125 is connected to the pin BSPL of the chip U16 and the pin BSNL of the chip U16, the other end of the magnetic bead FB120 is connected to one end of the inductor LA111 and one end of the capacitor C131, the other end of the inductor LA111 is connected to one end of the capacitor C129 and the internal speaker interface, the other end of the capacitor C129 is connected to ground and is connected to the other end of the capacitor C131, one end of the capacitor C132, and one end of the capacitor C130, the other end of the capacitor C130 is connected to one end of the inductor LA112, the other end of the capacitor C132 is connected to the external speaker interface and one end of the magnetic bead FB122, the other end of the magnetic bead FB122 is connected to the pin nr of the pin OUTPR of the chip U16, the pin OUTPR of the chip U16, and one end of the, the other end of the capacitor C126 is connected with a pin BSNR of the chip U16 and a pin BSPR of the chip U16; one end of the electrolytic capacitor E118, one end of the capacitor C133 and one end of the capacitor C134 which are connected in parallel are connected with a pin PVCCR of the chip U16, and the other end of the electrolytic capacitor E118, one end of the capacitor C133 and one end of the capacitor C134 which are connected in parallel are connected with the ground; a pin GAIN0 of the chip U16, a pin GAIN1 of the chip U16, a pin PBTL of the chip U16 and a pin AVCC of the chip U16 are connected and simultaneously connected to one end of the capacitor C122 and one end of the resistor R116, the other end of the capacitor C122 is connected to ground and simultaneously connected to one end of the capacitor C123, a pin GVDD of the chip U16 and a pin PLIMIT of the chip U16 are connected and simultaneously connected to the other end of the capacitor C123, a pin RINN of the chip U16 is connected to one end of the capacitor C120, the other end of the capacitor C120 is connected to an audio signal interface SO-, a pin RINP of the chip U16 is connected to one end of the capacitor C121, and the other end of the capacitor C121 is connected to an audio signal interface SO +.
Compared with the prior art, the T-BOX with the AVAS function provided by the invention has the following advantages: 1. the same functional module is utilized to realize high integration level design, improve the module utilization rate, reduce the cost and improve the system reliability; 2. the audio output module is integrated with a digital-to-analog conversion chip, can perform basic DSP processing, can help a voice system to shield environmental noise and system echo, and reduces distortion while improving sensitivity; 3. the invention can realize the function of broadcasting help seeking in accidents, and when an accident occurs, the help seeking can be carried out by using the external speaker under the condition that a driver cannot move or is in a coma, thereby improving the survival rate; 4. because the main cost of the T-BOX and the AVAS is concentrated on the main control module, the power supply module and the shell, compared with the prior art, the cost of the material body is reduced by nearly 20 percent; 5. the AVAS system is integrated into the T-BOX shell, the protection grade can reach IP67, thereby improving the reliability of the system, and the weight is reduced by 30% compared with the T-BOX shell and the AVAS system shell in the prior art by subtracting the AVAS system shell.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic block diagram of the circuit of the present invention.
Fig. 2 is a schematic block diagram of a power supply module of the present invention.
Fig. 3 is a circuit diagram of a power supply module in the present invention.
Fig. 4 is a circuit diagram of the main control module of the present invention.
Fig. 5 is a circuit diagram of a CAN interface in the present invention.
Fig. 6 is a circuit diagram of a communication module according to the present invention.
Fig. 7 is a circuit diagram of a positioning module of the present invention.
Fig. 8 is a circuit diagram of an audio output module according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1, according to an embodiment of the T-BOX with AVAS function provided by the present invention, the T-BOX includes a housing, and a power module 2, a main control module 1, an audio output module 3, a CAN interface 4, a positioning module 5, and a communication module 6 disposed in the housing, the power module 2, the audio output module 3, the CAN interface 4, the positioning module 5, and the communication module 6 are all connected to the main control module 1, the power module 2 is connected to the positioning module 5, the CAN interface 4, and the audio output module 3 is connected to the communication module 6, the audio output module 3 includes a digital-to-analog conversion chip 31 and an audio power amplifier 32 connected to each other, the digital-to-analog conversion chip 31 is connected to the communication module 6 and the main control module 1, a microphone interface is designed on the digital-to-analog conversion chip 31, the audio power amplifier 32 is provided with a vehicle internal speaker interface and a vehicle external speaker interface. When the novel energy source vehicle is applied to a new energy source vehicle, the power module 2 is connected with a power supply of the whole vehicle, the CAN interface 4 is connected with a CAN bus in the vehicle, the microphone interface is connected with a microphone in a cab, the speaker interface arranged in the vehicle is connected with a speaker in the cab of the vehicle, and the speaker interface arranged outside the vehicle is connected with a speaker outside the vehicle. The invention realizes the AVAS function of the T-BOX by adding the digital-to-analog conversion chip 31 in the prior T-BOX system; the following beneficial effects are realized: 1. the same functional module is utilized to realize high integration level design, improve the module utilization rate, reduce the cost and improve the system reliability; 2. the audio output module 3 integrates a digital-to-analog conversion chip 31, can perform basic DSP processing, can help a voice system to shield environmental noise and system echo, and reduces distortion while improving sensitivity; 3. the invention can realize the function of broadcasting help seeking in accidents, and when an accident occurs, the help seeking can be carried out by using the external speaker under the condition that a driver cannot move or is in a coma, thereby improving the survival rate; 4. because the main cost of the T-BOX and the AVAS is concentrated on the main control module 1, the power module 2 and the shell, compared with the prior art, the cost of the material body is reduced by nearly 20 percent; 5. the AVAS system is integrated into the T-BOX shell, the protection grade can reach IP67, thereby improving the reliability of the system, and the weight is reduced by 30% compared with the T-BOX shell and the AVAS system shell in the prior art by subtracting the AVAS system shell.
Referring to fig. 2 and 3, according to the above-described embodiment of the present invention, the power module 2 includes a 5V system, a 3.8V system, and a 3.3V system, the 5V system includes a CAN interface module and an audio output module, the 3.8V system includes a 4G communication module, the 3.3V system includes a main control module and a positioning module, the 5V system includes a chip U1, a chip U2, a chip U3, a resistor R1, a resistor R2, a zener diode D2, a capacitor C3, a capacitor C2, an electrolytic capacitor C1, an inductor L1, a bidirectional zener diode D1, a schottky diode D1, a resistor R1, a composite diode D1, a bidirectional zener diode D1, a resistor R1, a capacitor C1, an NPN type triode Q1, a resistor R1, a capacitor C1, a schottky diode D1, a resistor R1, a capacitor C1, a capacitor, the 3.3V system comprises an inductor C12, a magnetic bead FB5, a resistor R12, a resistor R13, a resistor R202, an electrolytic capacitor C10, a capacitor C11 and a magnetic bead FB1, the 3.8V system comprises a resistor R14, a capacitor C15, a magnetic bead FB8, a resistor R15, a resistor R16, a capacitor C13, a magnetic bead FB6 and an electrolytic capacitor C84, wherein the electrolytic capacitor C1, the capacitor C2 and the capacitor C3 are connected in parallel, the parallel end of the anode of the electrolytic capacitor C1 is connected with one end of the inductor L1 and simultaneously connected with one end of the resistor R1 and the pin VIN of the chip U1, the other end of the inductor L1 is connected with the cathode end of the Schottky diode and one end of the bidirectional voltage stabilizing diode D3, the other end of the bidirectional voltage stabilizing diode D3 and the other ends of the electrolytic capacitor C1, the capacitor C2 and the capacitor C3 which are connected in parallel are grounded, and the other end of the Schottky diode D1 is connected with the main control module; the other end of the resistor R1, one end of the resistor R2 and the end to which the negative electrode of the voltage stabilizing diode D2 belongs are connected with the main control module, and the other end of the voltage stabilizing diode D2 and the other end of the resistor R2 are both grounded; a pin EN of the chip U1 is connected to a pin 3 of the end to which the cathode of the composite diode D4 belongs, one end of the resistor R5 and one end of the capacitor C5 are all connected, the other end of the resistor R5 and the other end of the capacitor C5 are all grounded, a pin 1 of the end to which the anode of the composite diode D4 belongs is connected to one end of the resistor R3, the other end of the resistor R3 is connected to the main control module, a pin 2 of the end to which the anode of the composite diode D4 belongs is connected to one end of the resistor R4, the other end of the resistor R4 is connected to one end of the resistor R7 and one end of the bidirectional zener diode, the other end of the bidirectional zener diode D5 is grounded, the other end of the resistor R7 is connected to one end of the resistor R8, one end of the capacitor C8 and the base of the NPN type triode Q1, and the other end of the resistor R8 is connected to one end of the capacitor, The other end of the capacitor C8 and an emitting electrode of the NPN type triode are grounded, and a collector electrode of the NPN type triode is connected with the main control module; a pin RT/SYNC of the chip U1 is connected with one end of the resistor R9 and one end of the resistor R10, the other end of the resistor R9, the other end of the resistor R10 and one end of the capacitor C9 are both grounded, and the other end of the capacitor C9 is connected with a pin SS of the chip U1; a pin BOOT of the chip U1 is connected to one end of the capacitor C4, the other end of the capacitor C4 is connected to the pin SW of the chip U1, one end of the schottky diode D6 and one end of the inductor L2, the other end of the schottky diode D6 is grounded, the other end of the inductor L2 is connected to one end of the resistor R6, the positive terminal of the electrolytic capacitor C6 and one end of the capacitor C7, the other end of the resistor R6 is connected to the pin FB of the chip U1 and one end of the resistor R11, and the other end of the resistor R11, the other end of the electrolytic capacitor C6 and the other end of the capacitor C7 are grounded; a pin EN of the chip U2, a pin IN of the chip U2 and one end of the capacitor C12 are all connected, the other end of the capacitor C12 and one end of the magnetic bead FB5 are grounded, the other end of the magnetic bead FB5 is grounded, a pin OUT of the chip U2, one end of the resistor R12, the end to which the anode of the electrolytic capacitor C10 belongs, one end of the capacitor C11 and one end of the magnetic bead FB1 are all connected, the other end of the magnetic bead FB1 is connected to the main control module, the other end of the resistor R12 is connected to a pin ADJ of the chip U2, one end of the resistor R13 and one end of the resistor R202, and the other end of the resistor R13 is connected to the other end of the resistor R202, the other end of the electrolytic capacitor C10 and the other end of the capacitor C11 are all grounded; the pin EN of the chip U3 is connected with one end of the resistor R14, the other end of the resistor R14 is connected with the main control module, the pin IN of the chip U3 is connected with the capacitor C15, the other end of the capacitor C5 and one end of the magnetic bead FB8 are both grounded, the other interface of the magnetic bead FB8 is grounded, the pin OUT of the chip U3, one end of the resistor R15, one end of the capacitor C13 and one end of the magnetic bead FB6 are all connected, the other end of the magnetic bead FB6 is connected with the pin VABT of the chip U13 of the 4G module and the positive electrode of the electrolytic capacitor C84, the other end of the resistor R15 is connected with the pin ADJ of the chip U3 and one end of the resistor R16, and the other end of the resistor R16 is connected with the other end of the capacitor C13 and the other end of the electrolytic capacitor C84. After the power supply of the whole vehicle passes through the anti-reverse diode, a primary power supply chip DCDC (LMR14050) provides power for a 5V system, and then two secondary power supply chips LDO (MIC29302) respectively provide power for a 3.8V system and a 3.3V system. The power supply chip can be subjected to enable control by the MCU, so that intelligent management of a power supply system is realized. The model of the power supply module is LMR14050+ MIC29302, the model of the 5V system is 5V-DCDC-LMR14050, the model of the 3.8V system is 3.8V-LDO-MIC29302, and the model of the 3.3V system is 3.3V-LDO-MIC 29302.
Referring to fig. 4, according to the above embodiment of the present invention, the main control module 1 includes a chip U7, a capacitor C23, a capacitor C41, a capacitor C42, a three-pin connector J4, a capacitor C36, a resistor 201, a capacitor C47, a capacitor C48, a resistor R56, a capacitor C54, a capacitor C55, a thyristor X1, a capacitor C50, a resistor R59, a pin PD5 of the chip U7, a pin PD6 of the chip U7, a pin PD7 of the chip U7, and a pin PD14 of the chip U7, wherein the pin VSS _ LV3 of the chip U7 is grounded and is connected to one end of the capacitor C24, and the other pin VDD _ LV3 of the capacitor C24 is connected to the other end of the capacitor C24; a pin VDD _ HV3 of the chip U7 is connected with the master control module and one end of the capacitor C23, and the other end of the capacitor C23 is grounded and is connected with a pin VSS _ HV4 of the chip U7; a pin VSS _ HV2 of the chip U7 is grounded and is connected with one end of the capacitor C37, and the other end of the capacitor C37 is connected with a pin VDD _ HV2 of the chip U7; a pin VSS _ LV2 of the chip U7 is grounded and is connected with one end of the capacitor C42, and the other end of the capacitor C42 is connected with a pin VDD _ LV2 of the chip U7; a pin VDD _ BV of the chip U7 is connected with the master control module and one end of the capacitor C41, and the other end of the capacitor C41 is grounded and connected with a pin VSS _ HV3 of the chip U7; a pin VDD _ HV of the chip U7 is connected with the master control module and one end of the capacitor C36, and the other end of the capacitor C36 is grounded and is connected with a pin VSS _ HV of the chip U7; pin PD [10] of the chip U7]One end of the resistor R201 is connected with a pin PB11 of the chip U7, and the other end of the resistor R201 is connected with the main control module; a pin VDD _ HV _ ADC of the chip U7 is connected with the master control module and is also connected with one end of the capacitor C47 connected with the capacitor C48 in parallel, and the other end of the capacitor C47 connected with the capacitor C48 in parallel is connected with the pin VSS _ HV _ ADC of the chip U7; the pin PD6 of the chip U7 is connected with one end of the resistor R59 and simultaneously connected with the pin PD [12] of the chip U7]And pin PD6 of the chip U7; one end of the resistor R56 connected with the thyristor X1 in parallel is connected with one end of the capacitor C54, and the resistor R56 is connected with the thyristorThe other end of the tube X1 in parallel connection is connected with one end of the capacitor C55, and the other end of the capacitor C54 and the other end of the capacitor C55 are both grounded; a pin PD5 of the chip U7 is connected with the other end of the Schottky diode D1; a pin PD6 of the chip U7 is connected with the other end of the resistor R3 and the collector of the NPN type triode; a pin PD7 of the chip U7 is connected with the end to which the cathode of the voltage-stabilizing diode D2 belongs; and the pin PD14 of the chip U7 is connected with the other end of the resistor R14. The chip U7 is an NXP SPC5604, and the chip is a 32-bit microprocessor and is packaged by 100 pins. There are two SPI buses, two SDATA buses, one I2The system comprises a C bus, three CAN buses and abundant I/O and A/D pins, and CAN be used for multi-product platform development, so that the development period is shortened, and the labor cost is reduced. The chip U7 enables control to power module through the EN foot, 2 chip U7 controls the orientation module through the SPI bus, 3 chip U7 controls communication module through the SPI bus, 4 chip U7 controls audio output module through the SDATA bus, 5 chip U7 controls the CAN interface through the CAN bus.
Referring to fig. 5, according to the above embodiment of the present invention, the CAN interface 4 includes a chip U6, a resistor R42, a resistor R43, a resistor R47, a capacitor C35, a capacitor C33, a capacitor C34, a common mode filter L4, a resistor 44, a resistor 45, a capacitor C32, a capacitor C26, a capacitor C27, and a two-wire CAN bus protector E1, wherein a pin S of the chip U6 is connected to one end of the resistor R42 and one end of the resistor R43, the other end of the resistor R43 is connected to ground, and the other end of the resistor R42 is connected to a pin PE10 of the chip U7; a pin CANH of the chip U6 is connected to a first input terminal of the common mode filter L4 and also connected to one end of the capacitor C33, the other end of the resistor C33 is grounded, a pin CANL of the chip U6 is connected to a second input terminal of the common mode filter L4 and also connected to one end of the capacitor C34, the other end of the capacitor C34 is grounded, one end of the resistor R44, one end of the capacitor C26 and a first pin of the two-wire CAN bus protector E1 are all connected to a first output terminal of the common mode filter L4, one end of the resistor R45, one end of the capacitor C27 and a second pin of the two-wire CAN bus protector E1 are all connected to a second output terminal of the common mode filter L4, a third pin of the two-wire CAN bus protector E1, the other end of the capacitor C27 and the other end of the capacitor C26 are all connected to one end of the capacitor C32 and also connected to ground, and the other end of the resistor R44 is, The other end of the resistor R45 is connected to the other end of the capacitor C32, meanwhile, the first output end of the common mode filter L4 is connected to the chip U7, the second output end of the common mode filter L4 is connected to the chip U7, the pin TXD of the CAN communication circuit is connected to the pin CANOTX of the main control module, and the pin RXD of the CAN communication circuit is connected to the pin CANORX of the main control module. The model of the chip U6 is CAN-TJA 1051.
Referring to fig. 6, according to the above embodiment of the present invention, the communication module 6 is a 4G module, the 4G module includes a chip U13, a resistor R65, a capacitor C64, a capacitor C65, a socket J6, a capacitor C72, a resistor R71, a resistor R72, a resistor R70, an NPN type triode Q5, a light emitting diode D11, a light emitting diode D12, a resistor R74, an NPN type resistor Q6, a resistor R77, a resistor R76, a capacitor C77, a light emitting diode D13, a resistor R83, a capacitor C80, a capacitor C81, and a capacitor C82, wherein a pin ANT _ MAIN of the chip U13, one end of the resistor R65 and one end of the capacitor C64 are all connected, the other end of the capacitor C64 and one end of the capacitor C65 are grounded, the other end of the capacitor C65 is connected to one end of the resistor R65 and one end of the socket J6, and the other end of the socket J6 is grounded; a pin RING of the chip U13 is connected to one end of the resistor R71 and one end of the capacitor C72, the other end of the capacitor C72 is grounded, an emitter of the NPN type triode Q5 and one end of the resistor R72 are both grounded, the other end of the resistor R72 is connected to the other end of the resistor R71 and is also connected to a base of the NPN type triode, a collector of the NPN type triode is connected to one end of the resistor R70, and the other end of the resistor R70 is connected to the end of the light emitting diode D11 to which the negative electrode belongs; a pin NET _ LIGHT of the chip is connected with one end of the capacitor C77 and one end of the resistor R76, the other end of the capacitor C77 is grounded, an emitter of the NPN type triode Q6 is grounded and is also connected with one end of the resistor R77, the other end of the resistor R77 is connected with the other end of the resistor R76 and is also connected with a base electrode of the NPN type triode, a collector of the NPN type triode is connected with one end of the resistor R74, and the end of the LIGHT-emitting diode D12, to which the negative electrode belongs, is connected with the other end of the resistor R74; the cathode of the light emitting diode D13 is connected with one end of the resistor R83, and the other end of the resistor R83 is grounded; one end of the capacitor C80, the capacitor C81 and the capacitor C82 connected in parallel is grounded, and the other end of the capacitor C80, the capacitor C81 and the capacitor C82 connected in parallel is connected with a pin VABT of the chip U13, the other end of the light emitting diode D11, the other end of the light emitting diode D12 and the other end of the light emitting diode D13. The chip U6 is a square N720.
Referring to fig. 7, according to the above embodiment of the present invention, the positioning module 5 is a beidou positioning module, and the beidou positioning module includes a chip U12, a magnetic bead FB11, a resistor R66, a resistor R68, a capacitor 68, a capacitor 69, a capacitor 70, a microstrip line, a socket J7, an inductor FB13, a capacitor C66, a capacitor C67, a resistor R67, a light emitting diode D10, a resistor R69, and a capacitor C71, where a pin TXD1 of the chip U12 is connected to one end of the resistor R66, another end of the resistor R66 is connected to a pin PC9 of the main control module, a pin RXD1 of the chip U12 is connected to one end of the resistor R68, and another end of the resistor R68 is connected to a pin PC9 of the main control module; one end of the capacitor C68, the capacitor C69 and the capacitor C70 which are connected in parallel is connected with a pin VCC of the chip U12 and one end of the magnetic bead FB11, the other end of the capacitor C69 is connected with a pin GND of the chip U12, and the other end of the magnetic bead FB11 is connected with the main control module; a pin RF _ IN of the chip U12 is connected with one end of the microstrip line, the other end of the microstrip line is connected with one end of a socket J7, the other end of the socket J7 is grounded, one end of the capacitor C66, which is connected with the capacitor C67 IN parallel, is connected with one end of a pin VCC _ RF of the chip U12 and one end of the inductor FB13, the other end of the inductor FB13 is connected with the microstrip line, and the other end of the capacitor C66, which is connected with the capacitor C67 IN parallel, is grounded; the pin PULSE of the chip U12 is connected with one end of the resistor R67, the other end of the resistor R67 is connected with the end to which the anode of the light-emitting diode D10 belongs, and the other end of the light-emitting diode D10 is grounded; the pin NRESET of the chip U12 is connected with one end of the capacitor C71 and one end of the resistor R69, the other end of the resistor R69 is connected with the pin VCC of the chip U12, and the other end of the capacitor C71 is grounded. The Beidou positioning module is UM220, and the accuracy can reach 1 m.
Referring to fig. 8, according to the above-mentioned embodiment of the present invention, the audio output module 3 includes a chip U16, a resistor R114, a resistor R113, an NPN transistor VT1, a resistor R115, an electrolytic capacitor E117, a capacitor C116, a capacitor C117, a resistor R116, a capacitor C122, a capacitor C123, a capacitor C120, a capacitor C121, a capacitor C125, a magnetic bead FB120, an inductor LA111, a capacitor C131, a capacitor C129, a capacitor C132, a capacitor C130, a capacitor C126, a magnetic bead FB122, an inductor LA112, an electrolytic capacitor E118, a capacitor C133, and a capacitor C134, wherein an emitter of the NPN transistor is grounded, a base of the NPN transistor is connected to one end of the resistor R113, a collector of the NPN transistor is connected to one end of the resistor R114 and the SD pin of the chip U16, and another port of the resistor R113 is connected to the chip U7; the resistor R115 is connected with a pin FAULT of the chip U16; one end of the electrolytic capacitor E117, the capacitor C116 and the capacitor C117 which are connected in parallel is connected with the pin PVCCL of the chip U16, and the other end of the electrolytic capacitor E117, the capacitor C116 and the capacitor C117 which are connected in parallel is grounded; one end of the capacitor C125 is connected to the pin OUTPL of the chip U16, the pin OUTNL of the chip U16, and one end of the magnetic bead FB120, the other end of the capacitor C125 is connected to the pin BSPL of the chip U16 and the pin BSNL of the chip U16, the other end of the magnetic bead FB120 is connected to one end of the inductor LA111 and one end of the capacitor C131, the other end of the inductor LA111 is connected to one end of the capacitor C129 and the internal speaker interface, the other end of the capacitor C129 is connected to ground and is connected to the other end of the capacitor C131, one end of the capacitor C132, and one end of the capacitor C130, the other end of the capacitor C130 is connected to one end of the inductor LA112, the other end of the capacitor C132 is connected to the external speaker interface and one end of the magnetic bead FB122, the other end of the magnetic bead FB122 is connected to the pin nr of the pin OUTPR of the chip U16, the pin OUTPR of the chip U16, and one end of the, the other end of the capacitor C126 is connected with a pin BSNR of the chip U16 and a pin BSPR of the chip U16; one end of the electrolytic capacitor E118, one end of the capacitor C133 and one end of the capacitor C134 which are connected in parallel are connected with a pin PVCCR of the chip U16, and the other end of the electrolytic capacitor E118, one end of the capacitor C133 and one end of the capacitor C134 which are connected in parallel are connected with the ground; a pin GAIN0 of the chip U16, a pin GAIN1 of the chip U16, a pin PBTL of the chip U16 and a pin AVCC of the chip U16 are connected and simultaneously connected to one end of the capacitor C122 and one end of the resistor R116, the other end of the capacitor C122 is connected to ground and simultaneously connected to one end of the capacitor C123, a pin GVDD of the chip U16 and a pin PLIMIT of the chip U16 are connected and simultaneously connected to the other end of the capacitor C123, a pin RINN of the chip U16 is connected to one end of the capacitor C120, the other end of the capacitor C120 is connected to an audio signal interface SO-, a pin RINP of the chip U16 is connected to one end of the capacitor C121, and the other end of the capacitor C121 is connected to an audio signal interface SO +. The chip U16 is DAC (PCM56) + AMP (TPA2000), the highest 16-bit audio output of the module is supported, the low noise is only 96dB, and the conversion efficiency of the D-type output chip can reach more than 90%.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The utility model provides a T-BOX with AVAS function, includes the casing and establishes power module, host system, audio output module, CAN interface, orientation module and the communication module in the casing, power module, audio output module, CAN interface, orientation module and communication module all are connected with host system, power module with the orientation module, the CAN interface with the audio output module is connected respectively, the audio output module with the communication module is connected, its characterized in that: the audio output module is respectively connected with the communication module and the main control module, and a vehicle built-in loudspeaker interface and a vehicle external loudspeaker interface are arranged on the audio output module.
2. The T-BOX with AVAS functionality as claimed in claim 1, wherein: the digital-to-analog conversion chip is connected with the main control module through an I2C bus.
3. The T-BOX with AVAS functionality as claimed in claim 1, wherein: the audio power amplifier is a two-channel D-type audio power amplifier.
4. The T-BOX with AVAS functionality as claimed in claim 1, wherein: the communication module is a 4G module.
5. The T-BOX with AVAS functionality as claimed in claim 1, wherein: the power module comprises a 5V system, a 3.8V system and a 3.3V system, the 5V system comprises a CAN interface module and an audio output module, the 3.8V system comprises a 4G communication module, the 3.3V system comprises a main control module and a positioning module, the 5V system comprises a chip U1, a resistor R1, a voltage stabilizing diode D1, a capacitor C1, an electrolytic capacitor C1, an inductor L1, a bidirectional voltage stabilizing diode D1, a Schottky diode D1, a resistor R1, a composite diode D1, a bidirectional voltage stabilizing diode D1, a resistor R1, a capacitor C1, an NPN triode Q1, a resistor R1, a capacitor C1, a Schottky diode D1, an inductor L1, a resistor R1, a magnetic bead, a capacitor C1 and a capacitor C1, wherein the capacitor C1 comprises the, The 3.8V system comprises a resistor R13, a resistor R202, an electrolytic capacitor C10, a capacitor C11 and a magnetic bead FB1, wherein the 3.8V system comprises a resistor R14, a capacitor C15, a magnetic bead FB8, a resistor R15, a resistor R16, a capacitor C13, a magnetic bead FB6 and an electrolytic capacitor C84, the electrolytic capacitor C1, the capacitor C2 and the capacitor C3 are connected in parallel, a parallel end to which an anode of the electrolytic capacitor C1 belongs is connected with one end of an inductor L1 and simultaneously connected with one end of the resistor R1 and a pin VIN of the chip U1, the other end of the inductor L1 is connected with a cathode of the schottky diode and one end of a bidirectional zener diode D3, the other end of the bidirectional zener diode D3 and the other ends of the electrolytic capacitor C1, the capacitor C2 and the capacitor C3 which are connected in parallel are connected with ground, and the other end of the schottky diode D1 is connected with the main control module; the other end of the resistor R1, one end of the resistor R2 and the end to which the negative electrode of the voltage stabilizing diode D2 belongs are connected with the main control module, and the other end of the voltage stabilizing diode D2 and the other end of the resistor R2 are both grounded; a pin EN of the chip U1 is connected to a pin 3 of the end to which the cathode of the composite diode D4 belongs, one end of the resistor R5 and one end of the capacitor C5 are all connected, the other end of the resistor R5 and the other end of the capacitor C5 are all grounded, a pin 1 of the end to which the anode of the composite diode D4 belongs is connected to one end of the resistor R3, the other end of the resistor R3 is connected to the main control module, a pin 2 of the end to which the anode of the composite diode D4 belongs is connected to one end of the resistor R4, the other end of the resistor R4 is connected to one end of the resistor R7 and one end of the bidirectional zener diode, the other end of the bidirectional zener diode D5 is grounded, the other end of the resistor R7 is connected to one end of the resistor R8, one end of the capacitor C8 and the base of the NPN type triode Q1, and the other end of the resistor R8 is connected to one end of the capacitor, The other end of the capacitor C8 and an emitting electrode of the NPN type triode are grounded, and a collector electrode of the NPN type triode is connected with the main control module; a pin RT/SYNC of the chip U1 is connected with one end of the resistor R9 and one end of the resistor R10, the other end of the resistor R9, the other end of the resistor R10 and one end of the capacitor C9 are both grounded, and the other end of the capacitor C9 is connected with a pin SS of the chip U1; a pin BOOT of the chip U1 is connected to one end of the capacitor C4, the other end of the capacitor C4 is connected to the pin SW of the chip U1, one end of the schottky diode D6 and one end of the inductor L2, the other end of the schottky diode D6 is grounded, the other end of the inductor L2 is connected to one end of the resistor R6, the positive terminal of the electrolytic capacitor C6 and one end of the capacitor C7, the other end of the resistor R6 is connected to the pin FB of the chip U1 and one end of the resistor R11, and the other end of the resistor R11, the other end of the electrolytic capacitor C6 and the other end of the capacitor C7 are grounded; a pin EN of the chip U2, a pin IN of the chip U2 and one end of the capacitor C12 are all connected, the other end of the capacitor C12 and one end of the magnetic bead FB5 are grounded, the other end of the magnetic bead FB5 is grounded, a pin OUT of the chip U2, one end of the resistor R12, the end to which the anode of the electrolytic capacitor C10 belongs, one end of the capacitor C11 and one end of the magnetic bead FB1 are all connected, the other end of the magnetic bead FB1 is connected to the main control module, the other end of the resistor R12 is connected to a pin ADJ of the chip U2, one end of the resistor R13 and one end of the resistor R202, and the other end of the resistor R13 is connected to the other end of the resistor R202, the other end of the electrolytic capacitor C10 and the other end of the capacitor C11 are all grounded; the pin EN of the chip U3 is connected with one end of the resistor R14, the other end of the resistor R14 is connected with the main control module, the pin IN of the chip U3 is connected with the capacitor C15, the other end of the capacitor C5 and one end of the magnetic bead FB8 are both grounded, the other interface of the magnetic bead FB8 is grounded, the pin OUT of the chip U3, one end of the resistor R15, one end of the capacitor C13 and one end of the magnetic bead FB6 are all connected, the other end of the magnetic bead FB6 is connected with the pin VABT of the chip U13 of the 4G module and the positive electrode of the electrolytic capacitor C84, the other end of the resistor R15 is connected with the pin ADJ of the chip U3 and one end of the resistor R16, and the other end of the resistor R16 is connected with the other end of the capacitor C13 and the other end of the electrolytic capacitor C84.
6. The T-BOX with AVAS functionality as claimed in claim 5, wherein: the main control module comprises a chip U7, a capacitor C23, a capacitor C41, a capacitor C42, a three-pin connector J4, a capacitor C36, a resistor 201, a capacitor C47, a capacitor C48, a resistor R56, a capacitor C54, a capacitor C55, a thyristor X1, a capacitor C50, a resistor R59, a pin PD5 of the chip U7, a pin PD6 of the chip U7, a pin PD7 of the chip U7 and a pin PD14 of the chip U7, wherein a pin VSS _ LV3 of the chip U7 is grounded and is connected with one end of the capacitor C24, and the other end of the capacitor C24 is connected with a pin VDD _ LV3 of the capacitor; a pin VDD _ HV3 of the chip U7 is connected with the master control module and one end of the capacitor C23, and the other end of the capacitor C23 is grounded and is connected with a pin VSS _ HV4 of the chip U7; a pin VSS _ HV2 of the chip U7 is grounded and is connected with one end of the capacitor C37, and the other end of the capacitor C37 is connected with a pin VDD _ HV2 of the chip U7; a pin VSS _ LV2 of the chip U7 is grounded and is connected with one end of the capacitor C42, and the other end of the capacitor C42 is connected with a pin VDD _ LV2 of the chip U7; a pin VDD _ BV of the chip U7 is connected with the master control module and one end of the capacitor C41, and the other end of the capacitor C41 is grounded and connected with a pin VSS _ HV3 of the chip U7; a pin VDD _ HV of the chip U7 is connected with the master control module and one end of the capacitor C36, and the other end of the capacitor C36 is grounded and is connected with a pin VSS _ HV of the chip U7; a pin PD [10] of the chip U7 is connected with one end of the resistor R201 and simultaneously connected with a pin PB11 of the chip U7, and the other end of the resistor R201 is connected with the main control module; a pin VDD _ HV _ ADC of the chip U7 is connected with the master control module and is also connected with one end of the capacitor C47 connected with the capacitor C48 in parallel, and the other end of the capacitor C47 connected with the capacitor C48 in parallel is connected with the pin VSS _ HV _ ADC of the chip U7; a pin PD6 of the chip U7 is connected with one end of the resistor R59 and simultaneously connected with a pin PD [12] of the chip U7 and a pin PD6 of the chip U7; one end of the resistor R56 connected with the thyristor X1 in parallel is connected with one end of the capacitor C54, the other end of the resistor R56 connected with the thyristor X1 in parallel is connected with one end of the capacitor C55, and the other end of the capacitor C54 and the other end of the capacitor C55 are both grounded; a pin PD5 of the chip U7 is connected with the other end of the Schottky diode D1; a pin PD6 of the chip U7 is connected with the other end of the resistor R3 and the collector of the NPN type triode; a pin PD7 of the chip U7 is connected with the end to which the cathode of the voltage-stabilizing diode D2 belongs; and the pin PD14 of the chip U7 is connected with the other end of the resistor R14.
7. The T-BOX with AVAS functionality as claimed in claim 6, wherein: the CAN communication circuit comprises a chip U6, a resistor R42, a resistor R43, a resistor R47, a capacitor C35, a capacitor C33, a capacitor C34, a common mode filter L4, a resistor 44, a resistor 45, a capacitor C32, a capacitor C26, a capacitor C27 and a two-wire CAN bus protector E1, wherein a pin S of the chip U6 is connected with one end of the resistor R42 and one end of the resistor R43, the other end of the resistor R43 is grounded, and the other end of the resistor R42 is connected with a pin PE10 of the chip U7; a pin CANH of the chip U6 is connected to a first input terminal of the common mode filter L4 and also connected to one end of the capacitor C33, the other end of the resistor C33 is grounded, a pin CANL of the chip U6 is connected to a second input terminal of the common mode filter L4 and also connected to one end of the capacitor C34, the other end of the capacitor C34 is grounded, one end of the resistor R44, one end of the capacitor C26 and a first pin of the two-wire CAN bus protector E1 are all connected to a first output terminal of the common mode filter L4, one end of the resistor R45, one end of the capacitor C27 and a second pin of the two-wire CAN bus protector E1 are all connected to a second output terminal of the common mode filter L4, a third pin of the two-wire CAN bus protector E1, the other end of the capacitor C27 and the other end of the capacitor C26 are all connected to one end of the capacitor C32 and also connected to ground, and the other end of the resistor R44 is, The other end of the resistor R45 is connected to the other end of the capacitor C32, meanwhile, the first output end of the common mode filter L4 is connected to the chip U7, the second output end of the common mode filter L4 is connected to the chip U7, the pin TXD of the CAN communication circuit is connected to the pin CANOTX of the main control module, and the pin RXD of the CAN communication circuit is connected to the pin CANORX of the main control module.
8. The T-BOX with AVAS functionality as recited in claim 7, wherein: the 4G module comprises a chip U13, a resistor R65, a capacitor C64, a capacitor C65, a socket J6, a capacitor C72, a resistor R71, a resistor R72, a resistor R70, an NPN triode Q5, a light emitting diode D11, a light emitting diode D12, a resistor R74, an NPN resistor Q6, a resistor R77, a resistor R76, a capacitor C77, a light emitting diode D13, a resistor R83, a capacitor C80, a capacitor C81 and a capacitor C82, wherein a pin ANT _ MAIN of the chip U13, one end of the resistor R65 and one end of the capacitor C64 are all connected, the other end of the capacitor C64 and one end of the capacitor C65 are grounded, the other end of the capacitor C65 is connected with the other end of the resistor R65 and one end of the socket J6, and the other end of the J6 is grounded; a pin RING of the chip U13 is connected to one end of the resistor R71 and one end of the capacitor C72, the other end of the capacitor C72 is grounded, an emitter of the NPN type triode Q5 and one end of the resistor R72 are both grounded, the other end of the resistor R72 is connected to the other end of the resistor R71 and is also connected to a base of the NPN type triode, a collector of the NPN type triode is connected to one end of the resistor R70, and the other end of the resistor R70 is connected to the end of the light emitting diode D11 to which the negative electrode belongs; a pin NET _ LIGHT of the chip is connected with one end of the capacitor C77 and one end of the resistor R76, the other end of the capacitor C77 is grounded, an emitter of the NPN type triode Q6 is grounded and is also connected with one end of the resistor R77, the other end of the resistor R77 is connected with the other end of the resistor R76 and is also connected with a base electrode of the NPN type triode, a collector of the NPN type triode is connected with one end of the resistor R74, and the end of the LIGHT-emitting diode D12, to which the negative electrode belongs, is connected with the other end of the resistor R74; the cathode of the light emitting diode D13 is connected with one end of the resistor R83, and the other end of the resistor R83 is grounded; one end of the capacitor C80, the capacitor C81 and the capacitor C82 connected in parallel is grounded, and the other end of the capacitor C80, the capacitor C81 and the capacitor C82 connected in parallel is connected with a pin VABT of the chip U13, the other end of the light emitting diode D11, the other end of the light emitting diode D12 and the other end of the light emitting diode D13.
9. The T-BOX with AVAS functionality as claimed in claim 8, wherein: the Beidou positioning module comprises a chip U12, a magnetic bead FB11, a resistor R66, a resistor R68, a capacitor 68, a capacitor 69, a capacitor 70, a microstrip line, a socket J7, an inductor FB13, a capacitor C66, a capacitor C67, a resistor R67, a light emitting diode D10, a resistor R69 and a capacitor C71, wherein a pin TXD1 of the chip U12 is connected with one end of the resistor R66, the other end of the resistor R66 is connected with a pin PC9 of the master control module, a pin RXD1 of the chip U12 is connected with one end of the resistor R68, and the other end of the resistor R68 is connected with a pin PC9 of the master control module; one end of the capacitor C68, the capacitor C69 and the capacitor C70 which are connected in parallel is connected with a pin VCC of the chip U12 and one end of the magnetic bead FB11, the other end of the capacitor C69 is connected with a pin GND of the chip U12, and the other end of the magnetic bead FB11 is connected with the main control module; a pin RF _ IN of the chip U12 is connected with one end of the microstrip line, the other end of the microstrip line is connected with one end of a socket J7, the other end of the socket J7 is grounded, one end of the capacitor C66, which is connected with the capacitor C67 IN parallel, is connected with one end of a pin VCC _ RF of the chip U12 and one end of the inductor FB13, the other end of the inductor FB13 is connected with the microstrip line, and the other end of the capacitor C66, which is connected with the capacitor C67 IN parallel, is grounded; the pin PULSE of the chip U12 is connected with one end of the resistor R67, the other end of the resistor R67 is connected with the end to which the anode of the light-emitting diode D10 belongs, and the other end of the light-emitting diode D10 is grounded; the pin NRESET of the chip U12 is connected with one end of the capacitor C71 and one end of the resistor R69, the other end of the resistor R69 is connected with the pin VCC of the chip U12, and the other end of the capacitor C71 is grounded.
10. The T-BOX with AVAS functionality as claimed in claim 9, wherein: the audio output module comprises a chip U16, a resistor R114, a resistor R113, an NPN type triode VT1, a resistor R115, an electrolytic capacitor E117, a capacitor C116, a capacitor C117, a resistor R116, a capacitor C122, a capacitor C123, a capacitor C120, a capacitor C121, a capacitor C125, a magnetic bead FB120, an inductor LA111, a capacitor C131, a capacitor C129, a capacitor C132, a capacitor C130, a capacitor C126, a magnetic bead FB122, an inductor LA112, an electrolytic capacitor E118, a capacitor C133 and a capacitor C134, wherein an emitter of the NPN type triode is grounded, a base of the NPN type triode is connected with one end of the resistor R113, a collector of the NPN type triode is connected with one end of the resistor R114 and an SD pin of the chip U16, and the other port of the resistor R113 is connected with the chip U7; the resistor R115 is connected with a pin FAULT of the chip U16; one end of the electrolytic capacitor E117, the capacitor C116 and the capacitor C117 which are connected in parallel is connected with the pin PVCCL of the chip U16, and the other end of the electrolytic capacitor E117, the capacitor C116 and the capacitor C117 which are connected in parallel is grounded; one end of the capacitor C125 is connected to the pin OUTPL of the chip U16, the pin OUTNL of the chip U16, and one end of the magnetic bead FB120, the other end of the capacitor C125 is connected to the pin BSPL of the chip U16 and the pin BSNL of the chip U16, the other end of the magnetic bead FB120 is connected to one end of the inductor LA111 and one end of the capacitor C131, the other end of the inductor LA111 is connected to one end of the capacitor C129 and the internal speaker interface, the other end of the capacitor C129 is connected to ground and is connected to the other end of the capacitor C131, one end of the capacitor C132, and one end of the capacitor C130, the other end of the capacitor C130 is connected to one end of the inductor LA112, the other end of the capacitor C132 is connected to the external speaker interface and one end of the magnetic bead FB122, the other end of the magnetic bead FB122 is connected to the pin nr of the pin OUTPR of the chip U16, the pin OUTPR of the chip U16, and one end of the, the other end of the capacitor C126 is connected with a pin BSNR of the chip U16 and a pin BSPR of the chip U16; one end of the electrolytic capacitor E118, one end of the capacitor C133 and one end of the capacitor C134 which are connected in parallel are connected with a pin PVCCR of the chip U16, and the other end of the electrolytic capacitor E118, one end of the capacitor C133 and one end of the capacitor C134 which are connected in parallel are connected with the ground; a pin GAIN0 of the chip U16, a pin GAIN1 of the chip U16, a pin PBTL of the chip U16 and a pin AVCC of the chip U16 are connected and simultaneously connected to one end of the capacitor C122 and one end of the resistor R116, the other end of the capacitor C122 is connected to ground and simultaneously connected to one end of the capacitor C123, a pin GVDD of the chip U16 and a pin PLIMIT of the chip U16 are connected and simultaneously connected to the other end of the capacitor C123, a pin RINN of the chip U16 is connected to one end of the capacitor C120, the other end of the capacitor C120 is connected to an audio signal interface SO-, a pin RINP of the chip U16 is connected to one end of the capacitor C121, and the other end of the capacitor C121 is connected to an audio signal interface SO +.
CN201910939753.1A 2019-09-30 2019-09-30 T-BOX with AVAS function Pending CN110588545A (en)

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KR20150142484A (en) * 2014-06-12 2015-12-22 현대모비스 주식회사 Apparatus and method for variable output of virtual exhaust sound
CN207625769U (en) * 2017-11-17 2018-07-17 滁州松泽电器有限公司 Electric car low speed caution sound apparatus and system
CN208956031U (en) * 2018-09-29 2019-06-07 上海畅赢智能科技有限公司 It is a kind of based on the vehicle-mounted urgent talkback unit of full duplex
CN110053583A (en) * 2019-04-03 2019-07-26 广州小鹏汽车科技有限公司 People-car interaction method, system and vehicle when a kind of vehicle unlocks
CN110254345A (en) * 2019-05-16 2019-09-20 清华大学天津高端装备研究院 A kind of intelligent electric automobile prompt system for electrical teaching
CN211032440U (en) * 2019-09-30 2020-07-17 吉林北斗航天汽车研究院有限公司 T-BOX with AVAS function

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2774060Y (en) * 2004-09-20 2006-04-19 深圳市航盛电子股份有限公司 Loud speaker of vehicle with free-pick function
KR20150142484A (en) * 2014-06-12 2015-12-22 현대모비스 주식회사 Apparatus and method for variable output of virtual exhaust sound
CN207625769U (en) * 2017-11-17 2018-07-17 滁州松泽电器有限公司 Electric car low speed caution sound apparatus and system
CN208956031U (en) * 2018-09-29 2019-06-07 上海畅赢智能科技有限公司 It is a kind of based on the vehicle-mounted urgent talkback unit of full duplex
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CN211032440U (en) * 2019-09-30 2020-07-17 吉林北斗航天汽车研究院有限公司 T-BOX with AVAS function

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