CN110654346A - Automobile tail door induction opening device and opening method thereof - Google Patents
Automobile tail door induction opening device and opening method thereof Download PDFInfo
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- CN110654346A CN110654346A CN201811028602.2A CN201811028602A CN110654346A CN 110654346 A CN110654346 A CN 110654346A CN 201811028602 A CN201811028602 A CN 201811028602A CN 110654346 A CN110654346 A CN 110654346A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
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Abstract
The control module is electrically connected with a built-in induction antenna of the automobile, a remote controller recognizer matched with the automobile, a controller local area network built in the automobile, an electric tail door driving assembly installed in the automobile in a matched mode, a camera built in the rear side of the automobile, a license plate lamp built in the rear side of the automobile and a light supplementing lamp, and comprises a control part, a communication part, an identification part and an execution part, wherein the control part is respectively electrically connected with the communication part, the identification part and the execution part. The beneficial effects are as follows: through the utilization to the vehicle rear camera, realize responding to the effect of opening the tail-gate, promote the user and use experience and reduce use cost.
Description
Technical Field
The invention relates to the field of automobile accessories, in particular to a tail gate induction opening device and a tail gate induction opening method.
Background
At present, most automobile tail doors in the market are provided with key switches, and the tail doors are opened by pressing the switches. Meanwhile, auxiliary devices such as a tail gate opening device by foot kick induction, a tail gate opening device by sound control, a tail gate opening device by Bluetooth, a tail gate opening device by face recognition and the like are also arranged.
However, the solutions require additional cost and have the problems of instability, high development difficulty and the like.
A capacitive or other sensor located within the door handle is employed to determine the user's intention to open/close the door. However, the invention patent application needs the hand to extend into the door handle, and is only suitable for the manual opening of the side door/tail door of the vehicle. For the electric tail gate with the automatic opening function, the tail gate can be opened and closed by extending a hand into the handle and then taking out the hand from the handle, which is very bad use experience.
The dual-capacitor sensor arranged on the rear bumper is used for recognizing leg actions, judging the intention of a user to open the tail gate, and starting the automatic tail gate opening function after key authentication is passed. The invention can release both hands of a customer, and the tail gate can be automatically opened only through foot action recognition. However, the invention patent can only use the legs for identification, and needs the person to stand on one foot and then raise the foot for induction, which is not suitable for the elderly or the people with inconvenient legs. Simultaneously, because the sensor is installed in rear bumper below, the toy probably triggers by mistake when the vehicle bottom moves, consequently all can restrict the foot to play the action strictly in order to avoid this problem, can lead to the user to play a lot of down all play the problem that can not. In addition, the invention can only identify the legs or other conductive objects of people, and the sensitivity is reduced when people wear thicker trousers or shoes.
Disclosure of Invention
The invention aims to solve the problems and designs an automobile tail gate induction opening device and an opening method thereof. The specific design scheme is as follows:
an automobile tail gate induction opening device comprises a control module and a light supplement lamp,
the control module is electrically connected with an induction antenna arranged in the automobile, a remote controller recognizer matched with the automobile, a controller local area network arranged in the automobile, an electric tail gate driving component arranged in the automobile in a matching way, a camera arranged in the rear side of the automobile, a license plate lamp arranged in the rear side of the automobile and a light supplementing lamp,
the control module comprises a control part, a communication part, an identification part and an execution part, wherein the control part is respectively electrically connected with the communication part, the identification part and the execution part,
the control part comprises a main control circuit which is powered by an ultra-low noise power circuit,
the communication part comprises a CAN communication circuit which is powered by a CAN power circuit,
the execution part comprises a tail gate opening control circuit,
the identification part comprises a camera control circuit, a light supplement lamp control circuit and an environment light sensation identification circuit.
In the main control circuit, a control circuit is connected with the main control circuit,
comprises a chip U6, the model of the chip U6 comprises S9KEAZN64_ LQFP32,
the VDD pin of the chip U6, the VREFH pin are connected with a VDD power supply, one pin of the capacitor C5, the other pin of the capacitor C5 is connected with the reference ground,
the VREFL pin and the VSS pin of chip U6 are referenced to ground,
the PA5/F0_ CLK/RESET pin of the chip U6 is connected with one pin of the resistor R15, one pin of the capacitor C21 and the NRST terminal,
in the ultra-low noise power supply circuit,
chip U1 is the second stage LDO, chip U2 is the first stage LDO,
the VIN pin of the chip U1 is connected with one pin of the capacitor C4, the VOUT pin of the chip U2 and the ON/OFF pin of the chip U1,
the GND pin of the chip U1 and the other pin of the capacitor C4 are connected to ground,
the pin VOUT of the chip U1 is connected with one pin of the capacitor C6, one pin of the capacitor C9, the anode of the capacitor C7, the anode of the capacitor C3, the anode of the capacitor C1 and a VDD power supply,
the BYPASS pin of die U1 is connected to one pin of capacitor C10,
the other pin of the capacitor C6, the other pin of the capacitor C9, the cathode of the capacitor C7, the cathode of the capacitor C3, the cathode of the capacitor C1 and the other pin of the capacitor V10 are connected with the ground,
the GND pin of chip U2 is referenced to ground,
a VIN pin of the chip U2 is connected with a pin of the capacitor C23, an anode of the capacitor C29, a cathode of the diode D1, a cathode of the diode D2 and a POWER terminal,
the anode of the diode D2, the cathode of the capacitor C29, and the other pin of the capacitor C23 are connected to the ground,
the cathode of diode D1 is connected to terminal POWER _ IN.
In the CAN communication circuit, the communication circuit is provided with a communication interface,
comprises a chip U4, the model number of the chip U4 comprises TJA1042/T,
the TXD pin of the chip U4 is connected to one leg of resistor R72, the other leg of resistor R72 is connected to terminal CAN _ TXD,
the GND pin of chip U4 is referenced to ground,
the VCC pin of the chip U4 is connected to a +5V power supply,
the RXD pin of the chip U4 is connected with one pin of the resistor R73, the other pin of the resistor R73 is connected with the terminal CAN _ RXD,
the STB pin of the chip U4 is connected to one pin of the resistor R71, the other pin of the resistor R71 is connected to the terminal CAN _ STB,
the CANH pin of the chip U4 is connected to one pin of the resistor R102 and the terminal CAN _ H _ IN,
the S/V pin of the chip U4 is connected with one pin of the resistor R36, the other pin of the resistor R36 is connected with the other pin of the resistor R102 and one pin of the resistor R39, the other pin of the resistor R39 is connected with the CANL pin of the chip U4 through a terminal CAN _ L _ IN,
the terminal CAN _ RXD.
The terminal CAN _ STB, the terminal CAN _ H _ IN, the terminal CAN _ TXD and the terminal CAN _ RXD are electrically connected with a controller area network arranged IN the automobile,
in the CAN power supply circuit, a power supply is connected to the CAN,
comprises a chip U13, the model number of the chip U13 comprises NC/LP2951-50DR,
the V _ O pin of the chip U13, the SE pin are connected with the anode of the capacitor C1, one pin of the capacitor C25, the +5V power supply, the cathode of the capacitor C1, the other pin of the capacitor C25 are connected with the reference ground,
the SD pin of the chip U13 is connected with one pin of the resistor R30, the other pin of the resistor R13 is a CAN _ PWR terminal, and is electrically connected with a power circuit built in the automobile,
the GND pin of chip U13 is referenced to ground,
the FB pin of chip U13 is connected to the TAP pin of chip U13,
the pin V _ I of the chip U13 is connected with the power supply B +, one pin of the capacitor C2, and the other pin of the capacitor C2 is connected with the ground reference.
In the camera control circuit, the camera control circuit is connected with the camera,
comprises a chip U3, the model of the chip U3 comprises LM1881,
the CSOUT pin of the chip U3 is connected with one pin of the resistor R1, the other pin of the resistor R1 is connected with the PB5/F2_5/S0_ PCS0 pin of the chip U1 in the main control circuit through a terminal SCOUT,
the CVIN pin of the chip U3 is connected with one pin of a capacitor C8, the other pin of a capacitor C8 is connected with one pin of a capacitor C11, one pin of a resistor R6, one pin of a resistor R7 and a terminal VIDEO _ IN,
the other pin of the capacitor C11 and the other pin of the resistor R6 are connected with reference ground, the other pin of the resistor R7 is connected with the pins PC2/F2_2/AD0_10 of the chip U1 in the main control circuit through a terminal VIDEO IN,
the terminal VIDEO _ IN is a camera VIDEO input signal terminal,
the VSOUT pin of the chip U3 is connected with one pin of the resistor R2, the other pin of the resistor R2 is connected with the PB4/F2_4/S0_ MISO pin of the chip U1 in the main control circuit through the terminal VSOUT,
the VCC terminal of chip U3 is connected to the +5V supply,
the OEOUT pin of the chip U3 is connected to one pin of the resistor R5, the other pin of the resistor R5 is connected to the terminal OEOUT,
the RSET pin of the chip U3 is connected with one pin of the capacitor C12, one pin of the resistor R8, the other pin of the capacitor C12, the other pin of the resistor R8 is connected with the ground reference,
in the control circuit of the light-compensating lamp,
the base of the triode Q1 is connected with the pin PC0/F2_0/AD0_8 of the chip U1 in the main control circuit through a terminal KEY _ LOW,
the emitter of transistor Q1 is referenced to ground,
the collector of the triode Q1 is connected with the cathode of the light emitting diode D3 and the cathode of the light emitting diode D4, the anode of the light emitting diode D3 is connected with one pin of the resistor R9, the anode of the light emitting diode D4 is connected with one pin of the resistor R10, the other pin of the resistor R9 and the other pin of the resistor R10 are connected with a +5V power supply,
in the ambient light sensation identification circuit,
one pin of the resistor R11 and one pin of the resistor R12 are connected with one pin of the capacitor C13 and are connected with a PC1/F2_1/AD0_9 pin of a chip U1 IN the main control circuit through a terminal LIGHT _ IN,
the other pin of the resistor R11 is connected to the +5V power supply, the other pin of the resistor R12 and the other pin of the capacitor C13 are connected to the ground reference.
In the tail gate opening control circuit, the tail gate is controlled by the tail gate opening control circuit,
the base of the triode Q12 is connected with the pin PC0/F2_0/AD0_8 of the chip U1 in the main control circuit through a terminal KEY _ LOW,
the emitter of transistor Q12 is referenced to ground,
the collector of the transistor Q12 is connected to one leg of the resistor R3, and the other leg of the resistor R3 is connected to the terminal KEY _ LOW _ CON.
After the camera began work, acquireed real-time video signal earlier, under the good circumstances of light such as daytime, the video signal who acquires is clear stable, and the camera can judge in succession whether have effective action, and effective action includes but not limited to human being is close to the camera, the hand waves before the camera, shelters from modes such as camera. Meanwhile, when an object approaches, part of light rays can be shielded, so that the brightness acquired by the camera is reduced.
Under the poor condition of light such as evening, the video signal that acquires is black, has a lot of noisy, and the camera needs just can discern with the help of the light source, and the light source includes light filling lamp, vehicle license plate light, tail lamp etc. that the camera was taken certainly. With the help of the light source, the camera can easily recognize the above mentioned effective signals, but it needs to pay attention to the difference between the action recognition condition with the help of the light source and the daytime, specifically, when an object is close to the camera in the daytime, the camera can detect the whole brightness reduction (the object covers part of the light), and when an object is close to the camera in the evening, the camera can detect the whole brightness is obviously enhanced (the object reflects the light of the light source)
A method for opening a tail gate of an automobile comprises the following steps: the method comprises the steps of collecting information according to functional components arranged on an automobile, wherein the information is necessary information for logically judging the opening of a tail gate, transmitting the information to an automobile tail gate induction opening device, carrying out logical judgment by a control module, and realizing the opening and closing of the automobile functional components through the control module according to a judgment result.
After the vehicle enters the anti-theft state, the intelligent trunk system intermittently scans whether the adaptive remote controller enters the range of the tail gate or not, and after a user carries the remote controller to enter the range of the tail gate, the intelligent trunk system informs that an effective remote controller enters.
The functional components of the automobile comprise an induction antenna arranged in the automobile, a remote controller recognizer matched with the automobile, a controller local area network arranged in the automobile, an electric tail gate driving component arranged in the automobile, a camera arranged in the rear side of the automobile and a license plate lamp arranged in the rear side of the automobile,
wherein, the induction antenna realizes the identification and judgment of the space position and the distance element between the remote controller recognizer and the automobile, the matched remote controller is activated by periodically transmitting a low-frequency signal, the remote controller can detect the signal strength (RSSI) of the low-frequency signal and the direction of the signal, when the remote controller is awakened by the low-frequency signal of the automobile, the received signal strength and the received signal direction are continuously reported to the original automobile, the user can be effectively identified to advance to the direction of the camera through the signal strength and the direction, and the action identification of the camera is matched, so that the remote controller is more stable and reliable,
the electric tail gate driving component comprises a supporting rod and a driving motor, provides mechanical conditions for opening the tail gate of the automobile,
the camera realizes the recognition of images, comprises a license plate tail lamp which is used for providing illumination when in recognition at night,
the camera only carries out the image recognition of the object, and does not judge whether the person is a foot, a metal and other conductive objects, so that the camera can still easily recognize the conductive objects even if the person wears thick clothes in winter,
can be realized by shaking the feet in front of the camera (the position of the camera of part of the vehicle type is very low and can be reached by feet), and can also finish action recognition by using an article held by two hands to approach the camera,
the camera can conveniently recognize specific actions, such as the object moving from left to right, or the object moving from top to bottom, and the like. The user can set the exclusive door opening action, so that even if a key is near the tail gate, the tail gate can not be opened if no specific action is made,
the license plate lamp is used for sending system signals, including signals capable of making recognition actions and signals for recognizing whether the license plate lamp is effective or not,
the controller area network realizes the logical processing and judgment of information and confirms the starting and stopping state and the anti-theft state of the automobile.
The control module is used for logically judging the opening and closing of the tail gate and also comprises logic judgment of action recognition of a front-end camera.
The method is characterized in that the opening and closing of the automobile functional assembly are realized through the control module, the opening and closing of the automobile functional assembly are realized through the control module through an electric control circuit of the control module, an opening and closing signal is transmitted to a controller area network, the opening and closing of the automobile functional assembly are realized through the controller area network, the opening and closing signal is transmitted to the controller area network, necessary information is transmitted to the automobile tail gate induction opening device, and the opening and closing of the automobile functional assembly are realized through a communication part, particularly a CAN communication circuit.
The automobile tail gate induction opening device and the opening method dynamic three-dimensional book obtained by the technical scheme have the beneficial effects that:
through the utilization to the vehicle rear camera, realize responding to the effect of opening the tail-gate, promote the user and use experience and reduce use cost.
Drawings
FIG. 1 is a schematic block diagram of an inductive opening device for a tailgate of an automobile according to the present invention;
FIG. 2 is a circuit schematic of the master control circuit of the present invention;
FIG. 3 is a circuit schematic of the ultra low noise power supply circuit of the present invention;
FIG. 4 is a circuit schematic of the CAN communication circuit of the present invention;
FIG. 5 is a circuit schematic of the CAN circuit power supply of the present invention;
FIG. 6 is a circuit schematic of the camera control circuit of the present invention;
FIG. 7 is a schematic circuit diagram of a fill light control circuit according to the present invention;
FIG. 8 is a circuit schematic of an ambient light sensing circuit according to the present invention;
FIG. 9 is a logic diagram of the method of opening the tailgate of an automobile according to the present invention;
FIG. 10 is a logic diagram of camera motion recognition according to the present invention;
FIG. 11 is a schematic structural diagram of a mounting position of a light supplement lamp according to a part of the present invention;
FIG. 12 is a schematic diagram illustrating the recognition effect of the camera when the fill-in light is not turned on;
FIG. 13 is a schematic diagram illustrating the recognition effect of the camera when the fill-in light is turned on;
FIGS. 14-16 are schematic diagrams illustrating the recognition effect of the camera on the movement of the recognizer of the remote controller according to the present invention;
FIG. 17 is a circuit schematic of the tailgate opening control circuit of the present invention;
in the figure, 1, a camera; 2. a light supplement lamp; 3. a license plate lamp; 4. a remote controller identifier; 5. an object to be measured; 6. an inductive antenna.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of an automobile tail gate induction opening device of the present invention, and as shown in fig. 1, the automobile tail gate induction opening device comprises a control module and a fill-in light,
the control module is electrically connected with an induction antenna arranged in the automobile, a remote controller recognizer matched with the automobile, a controller local area network arranged in the automobile, an electric tail gate driving component arranged in the automobile in a matching way, a camera arranged in the rear side of the automobile, a license plate lamp arranged in the rear side of the automobile and a light supplementing lamp,
the control module comprises a control part, a communication part, an identification part and an execution part, wherein the control part is respectively electrically connected with the communication part, the identification part and the execution part,
the control part comprises a main control circuit which is powered by an ultra-low noise power circuit,
the communication part comprises a CAN communication circuit which is powered by a CAN power circuit,
the execution part comprises a tail gate opening control circuit,
the identification part comprises a camera control circuit, a light supplement lamp control circuit and an environment light sensation identification circuit.
Fig. 2 is a circuit schematic diagram of the main control circuit of the present invention, as shown in fig. 2, in the main control circuit,
comprises a chip U6, the model of the chip U6 comprises S9KEAZN64_ LQFP32,
the VDD pin of the chip U6, the VREFH pin are connected with a VDD power supply, one pin of the capacitor C5, the other pin of the capacitor C5 is connected with the reference ground,
the VREFL pin and the VSS pin of chip U6 are referenced to ground,
the PA5/F0_ CLK/RESET pin of the chip U6 is connected with one pin of the resistor R15, one pin of the capacitor C21 and the NRST terminal,
the PB3/K0_7/SPI0_ MOSI/F0_1/AD0_7 pin of the chip U6 is connected with the terminal ACC _ INT,
the PB0/K0_4/UART0_ RX/AD0_4 pin of the chip U6 is connected with the terminal UART0_ RXD,
the pins PD3/K1_3/SP1_ PCS0 of the chip U6 are connected with the wire SD,
the PD2/K1_2/SP1_ MISO pin of the chip U6 is connected with the terminal INTB,
the PA3_ OD/K0_3/UART0_ TX/I2C0_ SCL of the chip U6 is connected with one pin of the resistor R13, the other pin of the resistor R13 is connected with the terminal SCL,
the PA2_ OD/K0_2/UART0_ RX/I2C0_ SDA pin of the chip U6 is connected with one pin of the resistor R12, the other pin of the resistor R12 is connected with the terminal SD,
fig. 3 is a circuit schematic diagram of the ultra-low noise power supply circuit of the present invention, as shown in fig. 3, in which,
chip U1 is the second stage LDO, chip U2 is the first stage LDO,
the VIN pin of the chip U1 is connected with one pin of the capacitor C4, the VOUT pin of the chip U2 and the ON/OFF pin of the chip U1,
the GND pin of the chip U1 and the other pin of the capacitor C4 are connected to ground,
the pin VOUT of the chip U1 is connected with one pin of the capacitor C6, one pin of the capacitor C9, the anode of the capacitor C7, the anode of the capacitor C3, the anode of the capacitor C1 and a VDD power supply,
the BYPASS pin of die U1 is connected to one pin of capacitor C10,
the other pin of the capacitor C6, the other pin of the capacitor C9, the cathode of the capacitor C7, the cathode of the capacitor C3, the cathode of the capacitor C1 and the other pin of the capacitor V10 are connected with the ground,
the GND pin of chip U2 is referenced to ground,
a VIN pin of the chip U2 is connected with a pin of the capacitor C23, an anode of the capacitor C29, a cathode of the diode D1, a cathode of the diode D2 and a POWER terminal,
the anode of the diode D2, the cathode of the capacitor C29, and the other pin of the capacitor C23 are connected to the ground,
the cathode of diode D1 is connected to terminal POWER _ IN.
Fig. 4 is a schematic circuit diagram of the CAN communication circuit of the present invention, as shown in fig. 4, in which,
comprises a chip U4, the model number of the chip U4 comprises TJA1042/T,
the TXD pin of the chip U4 is connected to one leg of resistor R72, the other leg of resistor R72 is connected to terminal CAN _ TXD,
the GND pin of chip U4 is referenced to ground,
the VCC pin of the chip U4 is connected to a +5V power supply,
the RXD pin of the chip U4 is connected with one pin of the resistor R73, the other pin of the resistor R73 is connected with the terminal CAN _ RXD,
the STB pin of the chip U4 is connected to one pin of the resistor R71, the other pin of the resistor R71 is connected to the terminal CAN _ STB,
the CANH pin of the chip U4 is connected to one pin of the resistor R102 and the terminal CAN _ H _ IN,
the S/V pin of the chip U4 is connected with one pin of the resistor R36, the other pin of the resistor R36 is connected with the other pin of the resistor R102 and one pin of the resistor R39, the other pin of the resistor R39 is connected with the CANL pin of the chip U4 through a terminal CAN _ L _ IN,
the terminal CAN _ RXD.
The terminal CAN _ STB, the terminal CAN _ H _ IN, the terminal CAN _ TXD and the terminal CAN _ RXD are electrically connected with a controller area network arranged IN the automobile,
fig. 5 is a schematic circuit diagram of the CAN circuit power supply of the present invention, as shown in fig. 5, and as shown in fig. 5, in the CAN power supply circuit,
comprises a chip U13, the model number of the chip U13 comprises NC/LP2951-50DR,
the V _ O pin of the chip U13, the SE pin are connected with the anode of the capacitor C1, one pin of the capacitor C25, the +5V power supply, the cathode of the capacitor C1, the other pin of the capacitor C25 are connected with the reference ground,
the SD pin of the chip U13 is connected with one pin of the resistor R30, the other pin of the resistor R13 is a CAN _ PWR terminal, and is electrically connected with a power circuit built in the automobile,
the GND pin of chip U13 is referenced to ground,
the FB pin of chip U13 is connected to the TAP pin of chip U13,
the pin V _ I of the chip U13 is connected with the power supply B +, one pin of the capacitor C2, and the other pin of the capacitor C2 is connected with the ground reference.
Fig. 6 is a schematic circuit diagram of the camera control circuit according to the present invention, as shown in fig. 6, in which,
comprises a chip U3, the model of the chip U3 comprises LM1881,
the CSOUT pin of the chip U3 is connected with one pin of the resistor R1, the other pin of the resistor R1 is connected with the PB5/F2_5/S0_ PCS0 pin of the chip U1 in the main control circuit through a terminal SCOUT,
the CVIN pin of the chip U3 is connected with one pin of a capacitor C8, the other pin of a capacitor C8 is connected with one pin of a capacitor C11, one pin of a resistor R6, one pin of a resistor R7 and a terminal VIDEO _ IN,
the other pin of the capacitor C11 and the other pin of the resistor R6 are connected with reference ground, the other pin of the resistor R7 is connected with the pins PC2/F2_2/AD0_10 of the chip U1 in the main control circuit through a terminal VIDEO IN,
the terminal VIDEO _ IN is a camera VIDEO input signal terminal,
the VSOUT pin of the chip U3 is connected with one pin of the resistor R2, the other pin of the resistor R2 is connected with the PB4/F2_4/S0_ MISO pin of the chip U1 in the main control circuit through the terminal VSOUT,
the VCC terminal of chip U3 is connected to the +5V supply,
the OEOUT pin of the chip U3 is connected to one pin of the resistor R5, the other pin of the resistor R5 is connected to the terminal OEOUT,
the RSET pin of the chip U3 is connected with one pin of the capacitor C12, one pin of the resistor R8, the other pin of the capacitor C12, the other pin of the resistor R8 is connected with the ground reference,
fig. 7 is a schematic circuit diagram of a fill-in light control circuit according to the present invention, as shown in fig. 7, in the fill-in light control circuit,
the base of the triode Q1 is connected with the pin PC0/F2_0/AD0_8 of the chip U1 in the main control circuit through a terminal KEY _ LOW,
the emitter of transistor Q1 is referenced to ground,
the collector of the triode Q1 is connected with the cathode of the light emitting diode D3 and the cathode of the light emitting diode D4, the anode of the light emitting diode D3 is connected with one pin of the resistor R9, the anode of the light emitting diode D4 is connected with one pin of the resistor R10, the other pin of the resistor R9 and the other pin of the resistor R10 are connected with a +5V power supply,
fig. 8 is a schematic circuit diagram of the ambient light sensing circuit according to the present invention, as shown in fig. 8, in the ambient light sensing circuit,
one pin of the resistor R11 and one pin of the resistor R12 are connected with one pin of the capacitor C13 and are connected with a PC1/F2_1/AD0_9 pin of a chip U1 IN the main control circuit through a terminal LIGHT _ IN,
the other pin of the resistor R11 is connected to the +5V power supply, the other pin of the resistor R12 and the other pin of the capacitor C13 are connected to the ground reference.
Fig. 17 is a schematic circuit diagram of the back gate opening control circuit of the present invention, as shown in fig. 17, in which,
the base of the triode Q12 is connected with the pin PC0/F2_0/AD0_8 of the chip U1 in the main control circuit through a terminal KEY _ LOW,
the emitter of transistor Q12 is referenced to ground,
the collector of the transistor Q12 is connected to one leg of the resistor R3, and the other leg of the resistor R3 is connected to the terminal KEY _ LOW _ CON.
FIG. 11 is a schematic structural diagram of a mounting position of a light supplement lamp according to a part of the present invention; FIG. 12 is a schematic diagram illustrating the recognition effect of the camera when the fill-in light is not turned on; fig. 13 is a schematic view showing the recognition effect of the camera when the fill-in light is turned on, as shown in fig. 11-13,
after the camera began work, acquireed real-time video signal earlier, under the good circumstances of light such as daytime, the video signal who acquires is clear stable, and the camera can judge in succession whether have effective action, and effective action includes but not limited to human being is close to the camera, the hand waves before the camera, shelters from modes such as camera. Meanwhile, when an object approaches, part of light rays can be shielded, so that the brightness acquired by the camera is reduced.
Under the poor condition of light such as evening, the video signal that acquires is black, has a lot of noisy, and the camera needs just can discern with the help of the light source, and the light source includes light filling lamp, vehicle license plate light, tail lamp etc. that the camera was taken certainly. With the help of the light source, the camera can easily recognize the above mentioned effective signals, but it needs to pay attention to the difference between the action recognition condition with the help of the light source and the daytime, specifically, when an object is close to the camera in the daytime, the camera can detect the whole brightness reduction (the object covers part of the light), and when an object is close to the camera in the evening, the camera can detect the whole brightness is obviously enhanced (the object reflects the light of the light source)
A method for opening a tail gate of an automobile comprises the following steps: the method comprises the steps of collecting information according to functional components arranged on an automobile, wherein the information is necessary information for logically judging the opening of a tail gate, transmitting the information to an automobile tail gate induction opening device, carrying out logical judgment by a control module, and realizing the opening and closing of the automobile functional components through the control module according to a judgment result.
After the vehicle enters the anti-theft state, the intelligent trunk system intermittently scans whether the adaptive remote controller enters the range of the tail gate or not, and after a user carries the remote controller to enter the range of the tail gate, the intelligent trunk system informs that an effective remote controller enters.
The functional components of the automobile comprise an induction antenna arranged in the automobile, a remote controller recognizer matched with the automobile, a controller local area network arranged in the automobile, an electric tail gate driving component arranged in the automobile, a camera arranged in the rear side of the automobile and a license plate lamp arranged in the rear side of the automobile,
wherein, the induction antenna realizes the identification and judgment of the space position and the distance element between the remote controller recognizer and the automobile, the matched remote controller is activated by periodically transmitting a low-frequency signal, the remote controller can detect the signal strength (RSSI) of the low-frequency signal and the direction of the signal, when the remote controller is awakened by the low-frequency signal of the automobile, the received signal strength and the received signal direction are continuously reported to the original automobile, the user can be effectively identified to advance to the direction of the camera through the signal strength and the direction, and the action identification of the camera is matched, so that the remote controller is more stable and reliable,
the electric tail gate driving component comprises a supporting rod and a driving motor, provides mechanical conditions for opening the tail gate of the automobile,
the camera realizes the recognition of images, comprises a license plate tail lamp which is used for providing illumination when in recognition at night,
the camera only carries out the image recognition of the object, and does not judge whether the person is a foot, a metal and other conductive objects, so that the camera can still easily recognize the conductive objects even if the person wears thick clothes in winter,
can be realized by shaking the feet in front of the camera (the position of the camera of part of the vehicle type is very low and can be reached by feet), and can also finish action recognition by using an article held by two hands to approach the camera,
the camera can conveniently recognize specific actions, such as the object moving from left to right, or the object moving from top to bottom, and the like. The user can set the exclusive door opening action, so that even if a key is near the tail gate, the tail gate can not be opened if no specific action is made,
the license plate lamp is used for sending system signals, including signals capable of making recognition actions and signals for recognizing whether the license plate lamp is effective or not,
the controller area network realizes the logical processing and judgment of information and confirms the starting and stopping state and the anti-theft state of the automobile.
The control module is used for logically judging the opening and closing of the tail gate and also comprises logic judgment of action recognition of a front-end camera.
The method is characterized in that the opening and closing of the automobile functional assembly are realized through the control module, the opening and closing of the automobile functional assembly are realized through the control module through an electric control circuit of the control module, an opening and closing signal is transmitted to a controller area network, the opening and closing of the automobile functional assembly are realized through the controller area network, the opening and closing signal is transmitted to the controller area network, necessary information is transmitted to the automobile tail gate induction opening device, and the opening and closing of the automobile functional assembly are realized through a communication part, particularly a CAN communication circuit.
Example 1
FIG. 9 is a logic diagram of the method of opening the tailgate of an automobile according to the present invention; fig. 10 is a logic schematic diagram of the camera action recognition according to the present invention, as shown in fig. 9 and 10, after the vehicle is armed, the intelligent trunk system scans the adaptive remote controller periodically, and the camera enters a sleep state. When the vehicle detects that the adaptive remote controller enters the range of the trunk, the license plate lamp is started to prompt that the remote controller is identified, and meanwhile, the camera periodically scans whether effective actions exist. When a user sees that the license plate lamp is on, the user performs a set action, the camera identifies the action on the basis of light source assistance and image identification, and when the action is effective, the user can inform the electric tailgate to be opened. If the action is invalid, then the periodic scan continues for valid actions. Through the suggestion of license plate light, the user can know easily whether allow response discernment to open the tail-gate at present. When the original car key is near the trunk for a long time, the camera still does not effectively act after scanning for a period of time, and the camera should enter a dormant state to avoid power consumption. Only after the remote controller leaves the range of the trunk and enters the trunk again, the camera is awakened to scan.
Example 2
After the vehicle is fortified, the intelligent trunk system regularly scans the adaptive remote controller, and the camera enters a dormant state. After the vehicle detects that the adaptive remote controller enters the trunk range, the license plate lamp is not started, the camera light supplement lamp is started, the client can know that the remote controller is recognized in the prompting mode, only the camera light supplement lamp is started at the same time, the license plate lamp is not started, and more electricity is saved. The user does a set action in front of the camera, the camera identifies the action on the basis of light source assistance and image identification, and the electronic tail gate ECU can be informed to open the tail gate when the action is effective. If the action is invalid, the jacking scanning is continued to determine whether the action is valid.
Example 3
Fig. 14-16 are schematic diagrams illustrating the recognition effect of the camera on the movement of the remote controller recognizer, as shown in fig. 14-16, after the vehicle is set up with a defense, the intelligent trunk system scans and adapts to the remote controller periodically, and the camera enters a sleep state. After the vehicle detects the adaptation remote controller and gets into the trunk scope, utilize two intelligent trunk induction antenna, constantly judge the signal strength and the direction that the remote controller obtained, when detecting that the remote controller constantly is close to the tail-gate intermediate position, the camera discerns the object constantly near under the help of light filling lamp, license plate light, then notifies electronic tail-gate ECU to open the tail-gate. It should be noted that, in this case, the remote controller is continuously close to the middle of the tail gate, and the camera also recognizes that the object is continuously close, so that the tail gate can be opened without making a special gesture.
The effect of realization is when the user carries the key by far and near being close to rear of a vehicle door intermediate position, is not arriving the rear of a vehicle door position yet, and the rear of a vehicle door is automatic to be opened promptly, and the user just so can hold the thing and be close to the rear of a vehicle door immediately, then the door is automatic to be opened, and the rear of a vehicle door such as midway need not stop is opened, very convenient hommization. When the people went from the rear of a vehicle direction toward the locomotive direction, although the remote controller is also constantly being close to, and signal strength constantly strengthens, but the camera does not detect the object and is close to the camera, and two intelligent trunk inductive antenna also can judge that the people is not close to in the middle of the rear of a vehicle door simultaneously, consequently can not open the tail-gate, avoid the condition of spurious triggering.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (9)
1. An automobile tail gate induction opening device comprises a control module and a light supplement lamp, and is characterized in that,
the control module is electrically connected with an induction antenna arranged in the automobile, a remote controller recognizer matched with the automobile, a controller local area network arranged in the automobile, an electric tail gate driving component arranged in the automobile in a matching way, a camera arranged in the rear side of the automobile, a license plate lamp arranged in the rear side of the automobile and a light supplementing lamp,
the control module comprises a control part, a communication part, an identification part and an execution part, wherein the control part is respectively electrically connected with the communication part, the identification part and the execution part,
the control part comprises a main control circuit which is powered by an ultra-low noise power circuit,
the communication part comprises a CAN communication circuit which is powered by a CAN power circuit,
the execution part comprises a tail gate opening control circuit,
the identification part comprises a camera control circuit, a light supplement lamp control circuit and an environment light sensation identification circuit.
2. The inductive opening device for a tailgate of a vehicle according to claim 1, characterized in that in said main control circuit,
comprises a chip U6, the model of the chip U6 comprises S9KEAZN64_ LQFP32,
the VDD pin of the chip U6, the VREFH pin are connected with a VDD power supply, one pin of the capacitor C5, the other pin of the capacitor C5 is connected with the reference ground,
the VREFL pin and the VSS pin of chip U6 are referenced to ground,
the PA5/F0_ CLK/RESET pin of the chip U6 is connected with one pin of the resistor R15, one pin of the capacitor C21 and the NRST terminal,
the PB3/K0_7/SPI0_ MOSI/F0_1/AD0_7 pin of the chip U6 is connected with the terminal ACC _ INT,
the PB0/K0_4/UART0_ RX/AD0_4 pin of the chip U6 is connected with the terminal UART0_ RXD,
the pins PD3/K1_3/SP1_ PCS0 of the chip U6 are connected with the wire SD,
the PD2/K1_2/SP1_ MISO pin of the chip U6 is connected with the terminal INTB,
the PA3_ OD/K0_3/UART0_ TX/I2C0_ SCL of the chip U6 is connected with one pin of the resistor R13, the other pin of the resistor R13 is connected with the terminal SCL,
the PA2_ OD/K0_2/UART0_ RX/I2C0_ SDA pin of the chip U6 is connected with one pin of the resistor R12, the other pin of the resistor R12 is connected with the terminal SDA,
in the ultra-low noise power supply circuit,
chip U1 is the second stage LDO, chip U2 is the first stage LDO,
the VIN pin of the chip U1 is connected with one pin of the capacitor C4, the VOUT pin of the chip U2 and the ON/OFF pin of the chip U1,
the GND pin of the chip U1 and the other pin of the capacitor C4 are connected to ground,
the pin VOUT of the chip U1 is connected with one pin of the capacitor C6, one pin of the capacitor C9, the anode of the capacitor C7, the anode of the capacitor C3, the anode of the capacitor C1 and a VDD power supply,
the BYPASS pin of die U1 is connected to one pin of capacitor C10,
the other pin of the capacitor C6, the other pin of the capacitor C9, the cathode of the capacitor C7, the cathode of the capacitor C3, the cathode of the capacitor C1 and the other pin of the capacitor V10 are connected with the ground,
the GND pin of chip U2 is referenced to ground,
a VIN pin of the chip U2 is connected with a pin of the capacitor C23, an anode of the capacitor C29, a cathode of the diode D1, a cathode of the diode D2 and a POWER terminal,
the anode of the diode D2, the cathode of the capacitor C29, and the other pin of the capacitor C23 are connected to the ground,
the cathode of diode D1 is connected to terminal POWER _ IN.
3. The inductive opening device for a tailgate of a vehicle according to claim 1, characterized in that in said CAN communication circuit,
comprises a chip U4, the model number of the chip U4 comprises TJA1042/T,
the TXD pin of the chip U4 is connected to one leg of resistor R72, the other leg of resistor R72 is connected to terminal CAN _ TXD,
the GND pin of chip U4 is referenced to ground,
the VCC pin of the chip U4 is connected to a +5V power supply,
the RXD pin of the chip U4 is connected with one pin of the resistor R73, the other pin of the resistor R73 is connected with the terminal CAN _ RXD,
the STB pin of the chip U4 is connected to one pin of the resistor R71, the other pin of the resistor R71 is connected to the terminal CAN _ STB,
the CANH pin of the chip U4 is connected to one pin of the resistor R102 and the terminal CAN _ H _ IN,
the S/V pin of the chip U4 is connected with one pin of the resistor R36, the other pin of the resistor R36 is connected with the other pin of the resistor R102 and one pin of the resistor R39, the other pin of the resistor R39 is connected with the CANL pin of the chip U4 through a terminal CAN _ L _ IN,
the terminal CAN _ RXD.
The terminal CAN _ STB, the terminal CAN _ H _ IN, the terminal CAN _ TXD and the terminal CAN _ RXD are electrically connected with a controller area network arranged IN the automobile,
in the CAN power supply circuit, a power supply is connected to the CAN,
comprises a chip U13, the model number of the chip U13 comprises NC/LP2951-50DR,
the V _ O pin of the chip U13, the SE pin are connected with the anode of the capacitor C1, one pin of the capacitor C25, the +5V power supply, the cathode of the capacitor C1, the other pin of the capacitor C25 are connected with the reference ground,
the SD pin of the chip U13 is connected with one pin of the resistor R30, the other pin of the resistor R13 is a CAN _ PWR terminal, and is electrically connected with a power circuit built in the automobile,
the GND pin of chip U13 is referenced to ground,
the FB pin of chip U13 is connected to the TAP pin of chip U13,
the pin V _ I of the chip U13 is connected with the power supply B +, one pin of the capacitor C2, and the other pin of the capacitor C2 is connected with the ground reference.
4. The inductive opening device for a tailgate of a vehicle according to claim 1, wherein in said camera control circuit,
comprises a chip U3, the model of the chip U3 comprises LM1881,
the CSOUT pin of the chip U3 is connected with one pin of the resistor R1, the other pin of the resistor R1 is connected with the PB5/F2_5/S0_ PCS0 pin of the chip U1 in the main control circuit through a terminal SCOUT,
the CVIN pin of the chip U3 is connected with one pin of a capacitor C8, the other pin of a capacitor C8 is connected with one pin of a capacitor C11, one pin of a resistor R6, one pin of a resistor R7 and a terminal VIDEO _ IN,
the other pin of the capacitor C11 and the other pin of the resistor R6 are connected with reference ground, the other pin of the resistor R7 is connected with the pins PC2/F2_2/AD0_10 of the chip U1 in the main control circuit through a terminal VIDEO IN,
the terminal VIDEO _ IN is a camera VIDEO input signal terminal,
the VSOUT pin of the chip U3 is connected with one pin of the resistor R2, the other pin of the resistor R2 is connected with the PB4/F2_4/S0_ MISO pin of the chip U1 in the main control circuit through the terminal VSOUT,
the VCC terminal of chip U3 is connected to the +5V supply,
the OEOUT pin of the chip U3 is connected to one pin of the resistor R5, the other pin of the resistor R5 is connected to the terminal OEOUT,
the RSET pin of the chip U3 is connected with one pin of the capacitor C12, one pin of the resistor R8, the other pin of the capacitor C12, the other pin of the resistor R8 is connected with the ground reference,
in the control circuit of the light-compensating lamp,
the base of the triode Q1 is connected with the pin PC0/F2_0/AD0_8 of the chip U1 in the main control circuit through a terminal KEY _ LOW,
the emitter of transistor Q1 is referenced to ground,
the collector of the triode Q1 is connected with the cathode of the light emitting diode D3 and the cathode of the light emitting diode D4, the anode of the light emitting diode D3 is connected with one pin of the resistor R9, the anode of the light emitting diode D4 is connected with one pin of the resistor R10, the other pin of the resistor R9 and the other pin of the resistor R10 are connected with a +5V power supply,
in the ambient light sensation identification circuit,
one pin of the resistor R11 and one pin of the resistor R12 are connected with one pin of the capacitor C13 and are connected with a PC1/F2_1/AD0_9 pin of a chip U1 IN the main control circuit through a terminal LIGHT _ IN,
the other pin of the resistor R11 is connected with the +5V power supply, the other pin of the resistor R12 and the other pin of the capacitor C13 are connected with the ground reference,
the resistor R11 and the resistor R12 are photoresistors.
5. The inductive opening device for a tailgate of a vehicle according to claim 1, characterized in that in said tailgate opening control circuit,
the base of the triode Q12 is connected with the pin PC0/F2_0/AD0_8 of the chip U1 in the main control circuit through a terminal KEY _ LOW,
the emitter of transistor Q12 is referenced to ground,
the collector of the transistor Q12 is connected to one leg of the resistor R3, and the other leg of the resistor R3 is connected to the terminal KEY _ LOW _ CON.
6. A method for opening a tailgate of a motor vehicle, characterized in that, based on any of claims 1 to 5, the method is based on the principle: the method comprises the steps of collecting information according to functional components arranged on an automobile, wherein the information is necessary information for logically judging the opening of a tail gate, transmitting the information to an automobile tail gate induction opening device, carrying out logical judgment by a control module, and realizing the opening and closing of the automobile functional components through the control module according to a judgment result.
7. The method for opening a tailgate of an automobile according to claim 6, wherein the functional components of the automobile comprise an induction antenna built in the automobile, a remote controller recognizer built in the automobile, a controller area network built in the automobile, an electric tailgate driving component installed in the automobile, a camera built in the rear side of the automobile, and a license plate lamp built in the rear side of the automobile,
wherein, the induction antenna realizes the identification and judgment of the space position and the distance element between the remote controller identifier and the automobile,
the electric tail gate driving component comprises a supporting rod and a driving motor, provides mechanical conditions for opening the tail gate of the automobile,
the camera realizes the recognition of images, comprises a license plate tail lamp which is used for providing illumination when in recognition at night,
the controller area network realizes the logical processing and judgment of information, confirms the starting and stopping state and the anti-theft state of the automobile at the same time,
the license plate lamp is used for sending system signals, including signals capable of making recognition actions and signals capable of recognizing whether the license plate lamp is valid or not.
8. The method for opening the automobile tail gate according to claim 6, wherein the logic judgment of the opening and closing of the tail gate by the control module further comprises the logic judgment of the action recognition of a front-end camera.
9. The opening method of the automobile tail gate according to claim 6, wherein the opening and closing of the automobile functional component is realized by the control module, the opening and closing of the automobile functional component is realized by the control module through an electric control circuit of the control module, the opening and closing signal is transmitted to a controller area network, the opening and closing of the automobile functional component is realized by the controller area network, the step of transmitting the opening and closing signal to the controller area network and the step of transmitting necessary information to the automobile tail gate induction opening device are realized through a communication part, in particular through a CAN communication circuit.
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| CN201811028602.2A CN110654346A (en) | 2018-09-05 | 2018-09-05 | Automobile tail door induction opening device and opening method thereof |
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