CN116801445A - Dormancy wakeup control method based on multiple CAN communication automobile signal lamps - Google Patents

Dormancy wakeup control method based on multiple CAN communication automobile signal lamps Download PDF

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Publication number
CN116801445A
CN116801445A CN202310607967.5A CN202310607967A CN116801445A CN 116801445 A CN116801445 A CN 116801445A CN 202310607967 A CN202310607967 A CN 202310607967A CN 116801445 A CN116801445 A CN 116801445A
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China
Prior art keywords
lamp
leds
signal
state
dormancy
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Chinese (zh)
Inventor
杨玲
冯彪
刘建男
李虎强
韩红亮
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FAW Group Corp
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FAW Group Corp
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Priority to CN202310607967.5A priority Critical patent/CN116801445A/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/18—Controlling the light source by remote control via data-bus transmission

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention relates to a dormancy wakeup control method based on a plurality of CAN communication automobile signal lamps, in particular to the technical field of automobile signal lamp control, which comprises the following steps of S1, judging the type of a received signal according to a power supply signal of a whole automobile end; s2, judging the states of LEDs in the lamp according to the private CAN message; step S3, when the state judgment result in the step S2 is that the LEDs in the lamp are in a silent state, carrying out dormancy judgment on the LEDs in the lamp according to dormancy signals; s4, when the dormancy judgment result in the step S3 is that the LEDs in the lamp are in a dormant state, carrying out awakening judgment on the LEDs in the lamp according to the power supply signal of the whole vehicle end and the private CAN message; and S5, when the judgment result of the steps S2 and S4 is that the LEDs in the lamp are in an awake state, carrying out silence judgment on the LEDs in the lamp according to the silence signal. The invention improves the dormancy awakening efficiency of the lamp under the condition that a plurality of lamps work simultaneously based on dormancy awakening control of a plurality of CAN communication automobile signal lamps.

Description

Dormancy wakeup control method based on multiple CAN communication automobile signal lamps
Technical Field
The invention relates to the technical field of automobile signal lamp control, in particular to a dormancy wakeup control method based on a plurality of CAN communication automobile signal lamps.
Background
The automobile lamp shows the important characteristic of attractive appearance of the automobile, the automobile lamp is changed increasingly, the appearance effect is more and more complex, the control circuit of the lamp is more and more complex, the number and the form of the lamp are also increased gradually, the new energy automobile is powered by a battery, the requirement on ECU (electronic control Unit) energy consumption is higher, in particular, the static power consumption after the automobile is parked for a long time, if the static power consumption is overlarge, the storage battery feed can be caused after the automobile is parked for a long time, the automobile can not be started, the stable automobile lamp dormancy awakening method can effectively reduce the static power consumption of the whole automobile, the current method for reducing the automobile lamp power consumption is mainly in a dormancy awakening mode, when an automobile electronic controller enters a dormant state after the automobile is parked, only a duty circuit in the controller works, thus the static power consumption is greatly reduced, when the automobile electronic controller is awakened again, all modules of the controller start to work, the automobile lamp is used as an intelligent part on the existing automobile, the static power consumption cannot be ignored, and the dormancy failure caused by the mutual influence among the lamps can be generated under the condition of a plurality of simultaneous working.
Chinese patent publication No.: CN107696962a discloses an automobile emergency turn signal lamp control system, which comprises an automobile light control module, a storage battery, an emergency light control switch, a plurality of normally closed relays, a plurality of emergency lights, a plurality of turn lights, a turn light control switch and a wire, wherein the emergency lights form a first parallel circuit through the wire, the emergency light control switch, the normally closed relays and the first parallel circuit form a first series-parallel circuit through the wire, the turn lights form a second parallel circuit through the wire, the turn light control switch and the second parallel circuit form a second series-parallel circuit through the wire, and the first series-parallel circuit, the second series-parallel circuit, the automobile light control module and the storage battery form a third series-parallel circuit through the wire. According to the scheme, the problem that the dormancy wakeup failure is caused by the mutual influence among the lamps caused by signal delay is not considered under the condition that a plurality of lamps work simultaneously, and the dormancy wakeup efficiency of the lamps under the condition that the lamps work simultaneously cannot be improved.
Disclosure of Invention
Therefore, the invention provides a dormancy wakeup control method based on a plurality of CAN communication automobile signal lamps, which is used for solving the problem that dormancy wakeup failure is caused by the interaction among lamps due to signal delay under the condition that a plurality of lamps work simultaneously in the prior art.
In order to achieve the above object, the present invention provides a sleep wake-up control method based on a plurality of CAN communication car signal lamps, comprising,
step S1, receiving a power supply signal of a whole vehicle end, and judging the type of the received signal according to the power supply signal of the whole vehicle end;
step S2, when the received signal type is a private CAN message, judging the state of the LED in the lamp according to the private CAN message;
step S3, when the state judgment result in the step S2 is that the LEDs in the lamp are in a silent state, carrying out dormancy judgment on the LEDs in the lamp according to dormancy signals;
s4, when the dormancy judgment result in the step S3 is that the LEDs in the lamp are in a dormant state, carrying out awakening judgment on the LEDs in the lamp according to the power supply signal of the whole vehicle end and the private CAN message;
and S5, when the judgment result of the steps S2 and S4 is that the LEDs in the lamp are in an awake state, carrying out silence judgment on the LEDs in the lamp according to the silence signal.
Further, in the step S1, the lamp receives the power supply signal of the whole vehicle end through the CAN transceiver module, and determines the type of the received signal of the CAN transceiver module according to the power supply signal of the whole vehicle end, wherein,
when the power supply signal of the whole vehicle end is not started, judging that the type of the receiving signal of the CAN transceiver module is the power supply signal of the whole vehicle end;
when the power supply signal of the whole vehicle end is on, the type of the received signal of the CAN transceiver module is judged to be a private CAN message.
Further, in step S2, when the received signal type is the private CAN message, the state of the LED in the lamp is determined according to the receiving state of the private CAN message, where:
when the CAN transceiver module receives the private CAN message, the MCU main control chip judges that the LEDs in the lamp are in an awake state and controls the LEDs to be lightened through the driving chip;
when the CAN receiving and transmitting module does not receive the private CAN message, the MCU main control chip judges that the LEDs in the lamp are in a silent state, and controls the LEDs to enter the silent state through the driving chip.
Further, in step S3, when determining that the LED in the lamp is in the silence state, sleep determination is performed on the LED in the lamp through the MCU main control chip, where:
when the CAN transceiver module receives the dormancy signal, the MCU main control chip judges that the LEDs in the lamp are in a dormancy state, and controls the LEDs to carry out dormancy through the driving chip;
when the CAN transceiver module does not receive the dormancy signal, the MCU main control chip judges that the LEDs in the lamp are still in a silence state, and controls the LEDs to keep the silence state through the driving chip.
Further, the sleep signal refers to a signal that no CAN message exists in the duration of continuous T1, and the power supply signal of the whole vehicle end is unopened.
Further, in step S4, when determining that the LED in the lamp is in the sleep state, wake-up determination is performed on the LED in the lamp through the MCU main control chip, where:
when the CAN transceiver module does not receive the power supply signal of the whole vehicle end and the private CAN message, the MCU main control chip judges that the LED in the lamp is not subjected to wake-up control, and the driving chip controls the LED to keep a dormant state;
when the CAN transceiver module receives any one of a power supply signal of the whole vehicle end and a private CAN message, the MCU main control chip judges that the LEDs in the lamp are in wake-up control, and the LEDs are controlled to be lightened through the driving chip, so that the LEDs in the lamp are in a wake-up state.
Further, in step S5, when determining that the LED in the lamp is in the awake state, the silence determination is performed on the LED in the lamp according to the silence signal, where:
when the CAN transceiver module receives the silence signal, the MCU main control chip judges to perform silence control on the LEDs in the lamp, and controls the LEDs to enter a silence state through the driving chip;
when the CAN transceiver module does not receive the silence signal, the MCU main control chip judges that silence control is not carried out on the LEDs in the lamp, and the LEDs are controlled by the driving chip to keep a wake-up state.
Further, the silence signal refers to a signal that no CAN message exists in the duration of continuous T2, and the power supply signal of the whole vehicle end is unopened.
Further, the lamp comprises a CAN transceiver module, an MCU main control chip, a driving chip and an LED.
Further, the CAN transceiver module is connected with the outside of the lamp, the CAN transceiver module is used for receiving the whole vehicle-end power supply signal and the private CAN message outside the lamp, the MCU main control chip is connected with the CAN transceiver module, the MCU main control chip is used for processing the signal which is transmitted to the MCU main control chip after being received by the CAN transceiver module, the driving chip is connected with the MCU main control chip, the driving chip is used for controlling the LED in the lamp according to the signal processed by the MCU main control chip, the LED is connected with the driving chip, and the LED is used for responding according to the instruction of the driving chip.
Compared with the prior art, the invention has the beneficial effects that the type of the receiving signal is judged according to the power supply signal of the whole vehicle end by receiving the power supply signal of the whole vehicle end, so that the dormancy awakening efficiency of the lamp is improved under the condition that the lamps work simultaneously after the vehicle is electrified, the state of the LEDs in the lamp is judged according to the private CAN message when the type of the receiving signal is the private CAN message, the control is realized according to the vehicle signal, so that the dormancy awakening efficiency of the lamp is improved under the condition that the lamps work simultaneously, the dormancy judgment is carried out on the LEDs in the lamp according to the dormancy signal when the LEDs in the lamp are in the silence state, the dormancy efficiency of the lamp is further improved under the condition that the lamps work simultaneously is ensured to be stably and orderly awakened under the silence state, the dormancy judgment is further improved under the condition that the LEDs in the lamp work simultaneously is delayed according to the dormancy signal when the LEDs in the lamp are in the silence state, and the dormancy judgment is further improved.
In particular, the CAN transceiver module receives the power supply signal of the whole vehicle end, judges the type of the received signal according to the power supply signal of the whole vehicle end, and receives the private CAN message when the power supply signal of the whole vehicle end is on, so that the private CAN message in the vehicle is received after the vehicle is electrified, and the dormancy awakening efficiency of the lamp under the condition that a plurality of lamps work simultaneously is improved.
In particular, the state of the LEDs in the lamp is judged through the MCU main control chip, when the CAN receiving and transmitting module receives the private CAN message, the MCU main control chip judges that the LEDs in the lamp are in an awake state and controls the LEDs to be lightened through the driving chip, when the CAN receiving and transmitting module does not receive the private CAN message, the MCU main control chip judges that the LEDs in the lamp are in a silent state and controls the LEDs to enter the silent state through the driving chip, so that the lamp is controlled according to automobile signals, and the dormancy awake efficiency of the lamp under the condition that a plurality of lamps work simultaneously is improved.
And when the CAN receiving and transmitting module does not receive the dormancy signal, the MCU main control chip judges that the LEDs in the lamp are still in a silence state, and controls the LEDs to keep the silence state through the driving chip, so that the lamp is ensured to be awakened stably and orderly in the silence state, and the dormancy awakening efficiency of the lamp is further improved under the condition that a plurality of lamps work simultaneously.
In particular, according to the power supply signal of the whole vehicle end and the private CAN message, the MCU main control chip performs wake-up judgment on the LEDs in the lamp, when the CAN receiving and transmitting module does not receive the power supply signal of the whole vehicle end and the private CAN message, the MCU main control chip judges that the LEDs in the lamp are not subjected to wake-up control, and the driving chip controls the LEDs to keep a dormant state, when the CAN receiving and transmitting module receives the power supply signal of the whole vehicle end and the private CAN message, the MCU main control chip judges that the LEDs in the lamp are subjected to wake-up control, and controls the LEDs to be lightened through the driving chip, so that the LEDs in the lamp are in a wake-up state, and the dormant wake-up efficiency of the lamp is further improved under the condition that a plurality of lamps work simultaneously.
Drawings
Fig. 1 is a flow chart of a sleep wake-up control method based on a plurality of CAN communication automobile signal lamps in the embodiment.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, a flow chart of a sleep wake-up control method based on a plurality of CAN communication automobile signal lamps according to the present embodiment is shown, the method includes,
step S1, receiving a power supply signal of a whole vehicle end, and judging the type of the received signal according to the power supply signal of the whole vehicle end;
step S2, when the received signal type is a private CAN message, judging the state of the LED in the lamp according to the private CAN message;
step S3, when the state judgment result in the step S2 is that the LEDs in the lamp are in a silent state, carrying out dormancy judgment on the LEDs in the lamp according to dormancy signals;
s4, when the dormancy judgment result in the step S3 is that the LEDs in the lamp are in a dormant state, carrying out awakening judgment on the LEDs in the lamp according to the power supply signal of the whole vehicle end and the private CAN message;
and S5, when the judgment result of the steps S2 and S4 is that the LEDs in the lamp are in an awake state, carrying out silence judgment on the LEDs in the lamp according to the silence signal.
In particular, the states of the LEDs in the luminaire include a sleep state, an awake state, and a mute state.
Specifically, through receiving the power supply signal of the whole vehicle end, and judge the type of the received signal according to the power supply signal of the whole vehicle end, so as to timely receive the private CAN message in the vehicle after the vehicle is electrified, thereby improving the dormancy awakening efficiency of the lamp under the condition that a plurality of lamps work simultaneously, through judging the state of the LEDs in the lamp according to the private CAN message when the type of the received signal is the private CAN message, thereby realizing control over the lamp according to the vehicle signal, so as to improve the dormancy awakening efficiency of the lamp under the condition that a plurality of lamps work simultaneously, through judging the dormancy judgment of the LEDs in the lamp according to the dormancy signal when the LEDs in the lamp are in the silence state, thereby ensuring the dormancy awakening efficiency of the lamp under the condition that the lamps work simultaneously in a stable and orderly manner when the LEDs in the lamp are in the dormancy state, and further improving the dormancy awakening efficiency of the LEDs in the lamp according to the power supply signal and the private CAN message of the whole vehicle end, thereby further improving the awakening efficiency of the lamp under the condition that the lamps work simultaneously under the dormancy state, and further improving the dormancy awakening efficiency of the lamp due to the delay of the silence caused by the rest of the lamps when the LED signals in the lamp is in the silence state.
Specifically, the method is applied to a lamp of an automobile signal lamp, the lamp comprises a CAN transceiver module, an MCU main control chip, a driving chip and an LED, wherein the CAN transceiver module is connected with the outside of the lamp and is used for receiving a whole vehicle end power supply signal and a private CAN message outside the lamp, the MCU main control chip is connected with the CAN transceiver module and is used for processing a signal which is received by the CAN transceiver module and then is sent to the MCU main control chip, the driving chip is connected with the MCU main control chip and is used for controlling the LED in the lamp according to the signal processed by the MCU main control chip, and the LED is connected with the driving chip and is used for responding according to an instruction of the driving chip.
Specifically, CAN refers to a communication protocol in an automobile, CAN corresponds to a central nervous system of the automobile, a CAN transceiver module refers to a transceiver module of the CAN communication protocol, a private CAN message refers to a hexadecimal private message received by a transmission unit in the automobile by an ECU and a CAN card on a CAN line from a frame of data transmitted to a receiving unit, the ECU refers to an electronic control unit, the MCU refers to a micro control unit, the MCU refers to a chip-level computer, the MCU main control chip refers to a main control chip of the micro control unit, and a power supply signal at the end of the whole automobile refers to a power-on signal of the automobile.
Specifically, the lamp is connected with the storage battery, and the lamp has power input during the working period and the non-working period of the automobile.
Specifically, in the step S1, the lamp receives the power supply signal of the whole vehicle end through the CAN transceiver module, and determines the type of the received signal of the CAN transceiver module according to the power supply signal of the whole vehicle end, wherein,
when the power supply signal of the whole vehicle end is not started, judging that the type of the receiving signal of the CAN transceiver module is the power supply signal of the whole vehicle end;
when the power supply signal of the whole vehicle end is on, the type of the received signal of the CAN transceiver module is judged to be a private CAN message.
Specifically, the CAN transceiver module receives the power supply signal of the whole vehicle end, judges the type of the received signal according to the power supply signal of the whole vehicle end, and receives the private CAN message when the power supply signal of the whole vehicle end is on, so that the private CAN message in the vehicle is received after the vehicle is electrified, and the dormancy awakening efficiency of the lamp under the condition that a plurality of lamps work simultaneously is improved.
Specifically, in the step S2, when the received signal type is a private CAN message, the state of the LED in the lamp is determined according to the receiving state of the private CAN message, where:
when the CAN transceiver module receives the private CAN message, the MCU main control chip judges that the LEDs in the lamp are in an awake state and controls the LEDs to be lightened through the driving chip;
when the CAN receiving and transmitting module does not receive the private CAN message, the MCU main control chip judges that the LEDs in the lamp are in a silent state, and controls the LEDs to enter the silent state through the driving chip.
Specifically, the state of the LEDs in the lamp is judged through the MCU main control chip, when the CAN receiving module receives the private CAN message, the MCU main control chip judges that the LEDs in the lamp are in an awake state and controls the LEDs to be lightened through the driving chip, when the CAN receiving module does not receive the private CAN message, the MCU main control chip judges that the LEDs in the lamp are in a silent state and controls the LEDs to enter the silent state through the driving chip, so that the lamp is controlled according to automobile signals, and the dormancy awake efficiency of the lamp is improved under the condition that a plurality of lamps work simultaneously.
Specifically, in the step S3, when determining that the LED in the lamp is in the silence state, the MCU main control chip is used to perform sleep determination on the LED in the lamp, where:
when the CAN transceiver module receives the dormancy signal, the MCU main control chip judges that the LEDs in the lamp are in a dormancy state, and controls the LEDs to carry out dormancy through the driving chip;
when the CAN transceiver module does not receive the dormancy signal, the MCU main control chip judges that the LEDs in the lamp are still in a silence state, and controls the LEDs to keep the silence state through the driving chip.
Specifically, the LED in the lamp is judged by dormancy through the MCU main control chip according to the dormancy signal, when the CAN receiving and transmitting module receives the dormancy signal, the MCU main control chip judges that the LED in the lamp is in a dormant state and controls the LED to carry out dormancy through the driving chip, when the CAN receiving and transmitting module does not receive the dormancy signal, the MCU main control chip judges that the LED in the lamp is still in a silent state and controls the LED to keep in the silent state through the driving chip, so that the lamp is ensured to be awakened stably and orderly in the silent state, and the dormancy awakening efficiency of the lamp is further improved under the condition that a plurality of lamps work simultaneously.
Specifically, the sleep signal refers to a signal that no CAN message exists in a continuous T1 time period and the power supply signal of the whole vehicle end is unopened.
Specifically, in step S4, when determining that the LED in the lamp is in the sleep state, wake-up determination is performed on the LED in the lamp through the MCU main control chip, where:
when the CAN transceiver module does not receive the power supply signal of the whole vehicle end and the private CAN message, the MCU main control chip judges that the LED in the lamp is not subjected to wake-up control, and the driving chip controls the LED to keep a dormant state;
when the CAN transceiver module receives any one of a power supply signal of the whole vehicle end and a private CAN message, the MCU main control chip judges that the LEDs in the lamp are in wake-up control, and the LEDs are controlled to be lightened through the driving chip, so that the LEDs in the lamp are in a wake-up state.
Specifically, the MCU main control chip is used for carrying out wake-up judgment on the LEDs in the lamp according to the power supply signal of the whole vehicle end and the private CAN message, when the CAN receiving and transmitting module does not receive the power supply signal of the whole vehicle end and the private CAN message, the MCU main control chip is used for judging that the LEDs in the lamp are not subjected to wake-up control, the LEDs are controlled to be in a dormant state through the driving chip, when the CAN receiving and transmitting module receives the power supply signal of the whole vehicle end and the private CAN message, the MCU main control chip is used for judging that the LEDs in the lamp are subjected to wake-up control, and the driving chip is used for controlling the LEDs to be in a wake-up state, so that the LEDs in the lamp are sequentially awakened in the dormant state, and the dormant wake-up efficiency of the lamp under the condition that a plurality of lamps work simultaneously is further improved.
Specifically, in the step S5, when the LED in the lamp is determined to be in the awake state, the LED in the lamp is subjected to silence determination according to the silence signal, where:
when the CAN transceiver module receives the silence signal, the MCU main control chip judges to perform silence control on the LEDs in the lamp, and controls the LEDs to enter a silence state through the driving chip;
when the CAN transceiver module does not receive the silence signal, the MCU main control chip judges that silence control is not carried out on the LEDs in the lamp, and the LEDs are controlled by the driving chip to keep a wake-up state.
Specifically, the silence signal refers to a signal that no CAN message exists in a continuous T2 period and the power supply signal of the whole vehicle end is unopened.
Specifically, T1 is a first preset time, T2 is a second preset time, T2 is less than T1, the values of T1 being the first preset time and the second preset time T2 are not specifically limited in this embodiment, and a person skilled in the art can freely set the values according to actual requirements, and only needs to meet the control requirements for the silence state, for example, t1=3s and t2=2s are set.
Specifically, by setting that the first preset time T1 is longer than the second preset time T2, the lamps are ensured not to wake up each other under the same private can, the stable execution of a dormancy wake-up mechanism is ensured, and the dormancy wake-up efficiency of the lamps is further improved under the condition that a plurality of lamps work simultaneously.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.

Claims (10)

1. A dormancy wakeup control method based on a plurality of CAN communication automobile signal lamps is characterized by comprising the following steps of,
step S1, receiving a power supply signal of a whole vehicle end, and judging the type of the received signal according to the power supply signal of the whole vehicle end;
step S2, when the received signal type is a private CAN message, judging the state of the LED in the lamp according to the private CAN message;
step S3, when the state judgment result in the step S2 is that the LEDs in the lamp are in a silent state, carrying out dormancy judgment on the LEDs in the lamp according to dormancy signals;
s4, when the dormancy judgment result in the step S3 is that the LEDs in the lamp are in a dormant state, carrying out awakening judgment on the LEDs in the lamp according to the power supply signal of the whole vehicle end and the private CAN message;
and S5, when the judgment result of the steps S2 and S4 is that the LEDs in the lamp are in an awake state, carrying out silence judgment on the LEDs in the lamp according to the silence signal.
2. The sleep-wake-up control method based on a plurality of CAN communication automobile signal lamps according to claim 1, wherein in the step S1, the lamps receive the power supply signal of the whole automobile end through the CAN transceiver module, and judge the type of the received signal of the CAN transceiver module according to the power supply signal of the whole automobile end,
when the power supply signal of the whole vehicle end is not started, judging that the type of the receiving signal of the CAN transceiver module is the power supply signal of the whole vehicle end;
when the power supply signal of the whole vehicle end is on, the type of the received signal of the CAN transceiver module is judged to be a private CAN message.
3. The sleep-wake-up control method based on a plurality of CAN communication automobile signal lamps according to claim 1, wherein in the step S2, when the received signal type is a private CAN message, the state of the LED in the lamp is determined according to the receiving state of the private CAN message, wherein:
when the CAN transceiver module receives the private CAN message, the MCU main control chip judges that the LEDs in the lamp are in an awake state and controls the LEDs to be lightened through the driving chip;
when the CAN receiving and transmitting module does not receive the private CAN message, the MCU main control chip judges that the LEDs in the lamp are in a silent state, and controls the LEDs to enter the silent state through the driving chip.
4. The sleep-wake-up control method based on a plurality of CAN communication automobile signal lamps according to claim 1, wherein in the step S3, when determining that the LEDs in the lamp are in a silence state, sleep judgment is performed on the LEDs in the lamp through the MCU main control chip, wherein:
when the CAN transceiver module receives the dormancy signal, the MCU main control chip judges that the LEDs in the lamp are in a dormancy state, and controls the LEDs to carry out dormancy through the driving chip;
when the CAN transceiver module does not receive the dormancy signal, the MCU main control chip judges that the LEDs in the lamp are still in a silence state, and controls the LEDs to keep the silence state through the driving chip.
5. The method for controlling dormancy wakeup based on a plurality of CAN communication automobile signal lamps according to claim 4, wherein the dormancy signal is a signal that no CAN message exists in a continuous T1 time period and the power supply signal of the whole automobile end is not started.
6. The method for controlling the dormancy wakeup of the automobile signal lamp based on the plurality of CAN communication according to claim 1, wherein in the step S4, when the LEDs in the lamp are determined to be in the dormancy state, the wakeup determination is performed on the LEDs in the lamp through the MCU main control chip, wherein:
when the CAN transceiver module does not receive the power supply signal of the whole vehicle end and the private CAN message, the MCU main control chip judges that the LED in the lamp is not subjected to wake-up control, and the driving chip controls the LED to keep a dormant state;
when the CAN transceiver module receives any one of a power supply signal of the whole vehicle end and a private CAN message, the MCU main control chip judges that the LEDs in the lamp are in wake-up control, and the LEDs are controlled to be lightened through the driving chip, so that the LEDs in the lamp are in a wake-up state.
7. The sleep-wake-up control method based on a plurality of CAN communication automobile signal lamps according to claim 1, wherein in the step S5, when determining that the LEDs in the lamp are in the wake-up state, the LEDs in the lamp are subjected to silence determination according to the silence signal, wherein:
when the CAN transceiver module receives the silence signal, the MCU main control chip judges to perform silence control on the LEDs in the lamp, and controls the LEDs to enter a silence state through the driving chip;
when the CAN transceiver module does not receive the silence signal, the MCU main control chip judges that silence control is not carried out on the LEDs in the lamp, and the LEDs are controlled by the driving chip to keep a wake-up state.
8. The method for controlling dormancy wakeup of a plurality of CAN communication automobile signal lamps according to claim 7, wherein the silence signal is a signal that no CAN message exists in a continuous T2 time period and the power supply signal of the whole automobile end is unopened.
9. The sleep-wake-up control method based on a plurality of CAN communication automobile signal lamps according to claim 1, wherein the lamp comprises a CAN transceiver module, an MCU main control chip, a driving chip and an LED.
10. The dormancy awakening control method based on the plurality of CAN communication automobile signal lamps according to claim 9, wherein the CAN transceiver module is externally connected with the lamp, the CAN transceiver module is used for receiving an entire vehicle end power supply signal and a private CAN message outside the lamp, the MCU main control chip is connected with the CAN transceiver module, the MCU main control chip is used for processing a signal which is sent to the MCU main control chip after being received by the CAN transceiver module, the driving chip is connected with the MCU main control chip, the driving chip is used for controlling LEDs in the lamp according to the signal processed by the MCU main control chip, the LEDs are connected with the driving chip, and the LEDs are used for responding according to instructions of the driving chip.
CN202310607967.5A 2023-05-26 2023-05-26 Dormancy wakeup control method based on multiple CAN communication automobile signal lamps Pending CN116801445A (en)

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