Rear-mounted vehicle-mounted intelligent equipment control method, rear-mounted vehicle-mounted intelligent equipment and automobile

Abstract

The invention discloses an after-loading vehicle-mounted intelligent equipment control method, after-loading vehicle-mounted intelligent equipment and an automobile. The after-loading vehicle-mounted intelligent equipment control method comprises the following steps that ignition switch signals of the automobile are continuously obtained; the working state of the rear-mounted vehicle-mounted intelligent equipment is controlled according to the ignition switch signal; if the ignition switch signal is a turn-on signal, the rear-mounted vehicle-mounted intelligent equipment is controlled to enter a working mode; if the ignition switch signal is a turn-off signal, the after-loading vehicle-mounted intelligent equipment is controlled to enter a standby mode, timing is started, and the after-loading vehicle-mounted intelligent equipment is controlled to enter a sleep mode or a power-off mode according to the timing time. The invention aims to solve the problem that the starting time of the after-loading vehicle-mounted intelligent equipment is relatively long.

Description

Technical Field

[0001] The present invention relates to the field of aftermarket vehicle-mounted intelligent devices, and in particular to a control method for aftermarket vehicle-mounted intelligent devices, aftermarket vehicle-mounted intelligent devices and a vehicle. Background Art

[0002] With the continuous development of automobile intelligence and Internet technology, the functions of in-vehicle smart devices are becoming increasingly rich, and aftermarket products are widely used (for example: navigation maps, audio and video entertainment, voice interaction, reversing images, etc.), providing users with a more convenient, intelligent and safe driving experience; however, some cars do not have in-vehicle smart devices installed, so aftermarket in-vehicle smart devices need to be installed.

[0003] At present, the power supply of after-installed vehicle-mounted smart devices adopts the whole vehicle power supply method, and the logical judgment of the working status of the device is the ignition signal of the car, that is, when the user inserts the key and turns the gear of the ignition switch to the on position, the after-installed vehicle-mounted smart device starts to start up. The cold start time of the after-installed vehicle-mounted smart device in this way is about 30 seconds, and the user's waiting time is long. On the other hand, when the user turns off the engine and the gear of the ignition switch changes from the on position to the off position, the after-installed vehicle-mounted smart device is immediately powered off. If the user needs to use it again at this time or within a short period of time, it will take about 30 seconds to start up. The control method of the above after-installed vehicle-mounted smart device cannot meet the user's demand for quick startup. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a control method for an aftermarket vehicle-mounted intelligent device, an aftermarket vehicle-mounted intelligent device and a car, so as to solve the problem of a long startup time of the aftermarket vehicle-mounted intelligent device.

[0005] The technical solution of the present invention is as follows:

[0006] The present invention provides a control method for an aftermarket vehicle-mounted intelligent device, comprising the following steps:

[0007] Continuously obtain the car's ignition switch signal;

[0008] Control the working status of the after-installed vehicle-mounted intelligent device according to the ignition switch signal;

[0009] If the ignition switch signal is an on signal, the after-installed vehicle-mounted intelligent device is controlled to enter the working mode;

[0010] If the ignition switch signal is an off signal, the after-installed vehicle-mounted smart device is controlled to enter a standby mode, and a timing is started, and the after-installed vehicle-mounted smart device is controlled to enter a sleep mode or a shutdown mode according to the timing time.

[0011] Optionally, the step of controlling the after-installed vehicle-mounted intelligent device to enter a sleep mode or a shutdown mode according to the timing time specifically includes:

[0012] After the timing time reaches a first duration, the rear-mounted vehicle-mounted intelligent device is controlled to enter a sleep mode;

[0013] After the timing time reaches the second duration, the rear-mounted vehicle-mounted intelligent device is controlled to enter the shutdown mode; wherein the first duration is less than the second duration.

[0014] Optionally, the method further comprises the following steps:

[0015] When the ignition switch signal is received as an on signal in the standby mode, sleep mode or shutdown mode of the after-installed vehicle-mounted intelligent device, the after-installed vehicle-mounted intelligent device is controlled to enter the working mode and the timing time is reset to zero.

[0016] Optionally, when executing the step of continuously acquiring the ignition switch signal of the automobile, the method further includes:

[0017] Continuously obtain the power status signal of the car;

[0018] Control the working status of the after-installed vehicle-mounted intelligent devices according to the vehicle's power status signal;

[0019] When the power status of the car is low on power, the after-installed vehicle-mounted smart device is controlled to enter shutdown mode;

[0020] When the power state of the car is sufficient, the step of controlling the working state of the after-installed vehicle-mounted intelligent device according to the ignition switch signal is performed.

[0021] The present invention also proposes an aftermarket vehicle-mounted intelligent device based on the aftermarket vehicle-mounted intelligent device control method, comprising:

[0022] Signal interface, used to connect to the car's ignition switch;

[0023] A control circuit, wherein an input end of the control circuit is connected to the signal interface, and the control circuit is used to obtain an ignition switch signal of the vehicle through the signal interface, and control the working state of the after-installed vehicle-mounted intelligent device according to the ignition switch signal;

[0024] When the control circuit detects that the ignition switch signal is an on signal, the after-installed vehicle-mounted intelligent device is controlled to enter a working mode;

[0025] When the control circuit detects that the ignition switch signal is an off signal, the after-installed vehicle-mounted intelligent device is controlled to enter a standby mode and start timing, and controls the after-installed vehicle-mounted intelligent device to enter a sleep mode or a shutdown mode according to the timing time.

[0026] Optionally, the after-installed vehicle-mounted smart device further includes a first timer and a second timer, and the control circuit is connected to the first timer and the second timer. The control circuit is used to control the first timer and the second timer to start timing when controlling the after-installed vehicle-mounted smart device to enter the standby mode, and control the after-installed vehicle-mounted smart device to enter the sleep mode when receiving the first timing trigger signal output by the first timer, and control the after-installed vehicle-mounted smart device to enter the shutdown mode when receiving the second timing trigger signal output by the second timer; wherein the first duration is less than the second duration;

[0027] The control circuit is also used to reset the timing of the first timer and the second timer when controlling the after-installed vehicle-mounted intelligent device to enter the working mode.

[0028] Optionally, the aftermarket vehicle-mounted intelligent device further includes:

[0029] A power supply circuit is connected to the control circuit. The power input terminal of the power supply circuit is used to connect to the car power supply. The power supply circuit is used to convert the car power supply to supply power to the control circuit.

[0030] Optionally, the input end of the power supply circuit is also used to connect to a signal interface, and the power supply circuit is used to supply power to the control circuit when the ignition switch signal of the automobile is an on signal.

[0031] Optionally, the aftermarket vehicle-mounted intelligent device further includes:

[0032] A memory storing a control program for an aftermarket vehicle-mounted intelligent device. When the aftermarket vehicle-mounted intelligent device control program is executed by the controlled circuit, the steps of the aftermarket vehicle-mounted intelligent device control method as described above are implemented.

[0033] The present invention also provides a car, comprising a car body and the after-market on-board intelligent device as described above.

[0034] The technical solution of the present invention can continuously obtain the ignition switch signal of the car, and control the working state of the after-installed vehicle-mounted intelligent device according to the ignition switch signal; control the after-installed vehicle-mounted intelligent device to enter the working mode when the ignition switch signal is an on signal; control the after-installed vehicle-mounted intelligent device to enter the standby mode when the ignition switch signal is an off signal, and start timing, and control the after-installed vehicle-mounted intelligent device to enter the sleep mode or shutdown mode according to the timing time. In this way, this solution can enable the after-installed vehicle-mounted intelligent device to quickly enter the working mode in the standby mode or sleep mode, solving the problem of the long startup time of the after-installed vehicle-mounted intelligent device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary personnel in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0036] Figure 1 It is a flow chart of the method steps of an embodiment of a method for controlling a post-installed vehicle-mounted intelligent device of the present invention.

[0037] Figure 2 It is a flow chart of the method steps of another embodiment of the aftermarket vehicle-mounted intelligent device control method of the present invention.

[0038] Figure 3 It is a functional module diagram of an embodiment of a post-installed vehicle-mounted intelligent device of the present invention.

[0039] Figure 4 It is a circuit structure diagram of an embodiment of a power supply circuit in a post-installed vehicle-mounted intelligent device of the present invention.

[0040] Figure 5 It is a circuit structure diagram of another embodiment of the power supply circuit in the aftermarket vehicle-mounted intelligent device of the present invention. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] In the embodiments and the scope of the patent application, unless the text specifically defines the article, "a", "an", "the" and "the" may also include plural forms. If there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0043] It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when an element is said to be "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there can also be intermediate elements. In addition, the "connection" or "coupling" used herein can include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0044] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as herein.

[0045] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] With the continuous development of automobile intelligence and Internet technology, the functions of in-vehicle smart devices are becoming increasingly rich, and aftermarket products are widely used (for example: navigation maps, audio and video entertainment, voice interaction, reversing images, etc.), providing users with a more convenient, intelligent and safe driving experience; however, some cars do not have in-vehicle smart devices installed, so aftermarket in-vehicle smart devices need to be installed.

[0047] At present, the power supply of after-installed vehicle-mounted smart devices adopts the whole vehicle power supply method, and the logical judgment of the working status of the device is the ignition signal of the car, that is, when the user inserts the key and turns the gear of the ignition switch to the on position, the after-installed vehicle-mounted smart device starts to start up. The cold start time of the after-installed vehicle-mounted smart device in this way is about 30 seconds, and the user's waiting time is long. On the other hand, when the user turns off the engine and the gear of the ignition switch changes from the on position to the off position, the after-installed vehicle-mounted smart device is immediately powered off. If the user needs to use it again at this time or within a short period of time, it will take about 30 seconds to start up. The control method of the above after-installed vehicle-mounted smart device cannot meet the user's demand for quick startup.

[0048] In order to solve the above problems, the present invention proposes a control method for an aftermarket vehicle-mounted intelligent device.

[0049] Reference Figure 1 In one embodiment, the control method of the aftermarket vehicle-mounted intelligent device includes the following steps:

[0050] S100, continuously obtaining an ignition switch signal of the vehicle;

[0051] S200, controlling the working state of the after-installed vehicle-mounted intelligent device according to the ignition switch signal;

[0052] S300: If the ignition switch signal is an on signal, the after-installed vehicle-mounted intelligent device is controlled to enter a working mode;

[0053] S400: If the ignition switch signal is an off signal, the after-installed vehicle-mounted smart device is controlled to enter a standby mode, and timing is started. The after-installed vehicle-mounted smart device is controlled to enter a sleep mode or a shutdown mode according to the timing time.

[0054] In this embodiment, the interface can be connected to the ignition switch of the car, and the ignition switch signal of the car can be continuously obtained, and then the working state of the after-installed vehicle-mounted intelligent device can be controlled according to the ignition switch signal; the ignition switch signal can be divided into an on signal and an off signal; specifically, the user can switch to the on position or the off position by inserting the key and turning the key, and the on signal and the off signal are output accordingly. It can be understood that when the ignition switch signal is an on signal, the after-installed vehicle-mounted intelligent device can be controlled to enter the working mode, and when the ignition switch signal is an off signal, the after-installed vehicle-mounted intelligent device can be controlled to enter the standby mode. In standby mode or sleep mode, the time required for the after-installed vehicle-mounted intelligent device to enter the working mode is shorter, and in shutdown mode, the time required for the after-installed vehicle-mounted intelligent device to enter the working mode is longer; for example, the time required for the after-installed vehicle-mounted intelligent device to cold start from shutdown mode to working mode is 30 seconds, and the time required for the after-installed vehicle-mounted intelligent device to hot wake up from standby mode or sleep mode to working mode is 2 seconds. The specific cold start time and hot wake up time will vary according to the specific situation of the car, but the hot wake up time will be shorter than the cold start time. In this way, the after-installed vehicle-mounted intelligent device in this solution can enter the working mode through hot wake-up in both standby mode and sleep mode, which can meet the user's needs for quick startup. Furthermore, the standards for the after-installed vehicle-mounted intelligent device to enter the standby mode, sleep mode and shutdown mode can be set according to actual conditions and user needs. For example, when the ignition switch signal is an off signal, it enters the standby mode, and enters the sleep mode after the standby time reaches a certain time, and then enters the shutdown mode after the sleep time reaches a certain time. In this way, when the user needs to use the after-installed vehicle-mounted intelligent device multiple times in a short period of time, there is no need to wait for a long time to start, and entering the standby mode and sleep mode can also save energy. It can be understood that the after-installed vehicle-mounted intelligent device is different from the front-installed vehicle-mounted intelligent device that comes with the car. The only logical judgment signal of the car that the after-installed vehicle-mounted intelligent device can receive is the ignition switch signal of the car. Therefore, this solution controls the working state of the after-installed vehicle-mounted intelligent device through the ignition switch signal, and no other logical signals are required.

[0055] The technical solution of the present invention can continuously obtain the ignition switch signal of the car, and control the working state of the after-installed vehicle-mounted intelligent device according to the ignition switch signal; control the after-installed vehicle-mounted intelligent device to enter the working mode when the ignition switch signal is an on signal; control the after-installed vehicle-mounted intelligent device to enter the standby mode when the ignition switch signal is an off signal, and start timing, and control the after-installed vehicle-mounted intelligent device to enter the sleep mode or shutdown mode according to the timing time. In this way, this solution can enable the after-installed vehicle-mounted intelligent device to quickly enter the working mode in the standby mode or sleep mode, solving the problem of the long startup time of the after-installed vehicle-mounted intelligent device.

[0056] In one embodiment, the step of controlling the after-installed vehicle-mounted intelligent device to enter a sleep mode or a shutdown mode according to the timing time specifically includes:

[0057] After the timing time reaches a first duration, the rear-mounted vehicle-mounted intelligent device is controlled to enter a sleep mode;

[0058] After the timing time reaches the second duration, the rear-mounted vehicle-mounted intelligent device is controlled to enter the shutdown mode; wherein the first duration is less than the second duration.

[0059] In this embodiment, for controlling the after-installed vehicle-mounted smart device to enter the sleep mode or the shutdown mode, the timing can be performed by a timer, and the after-installed vehicle-mounted smart device can be controlled to enter the sleep mode or the shutdown mode according to the timing time of the timer; for example, two timers are set, recorded as a first timer 30 and a second timer 40, after the after-installed vehicle-mounted smart device enters the standby mode, the first timer 30 and the second timer 40 are controlled to start timing, after the timing time of the first timer 30 reaches the first duration, the first timer 30 can output a first timing trigger signal, at this time, the after-installed vehicle-mounted smart device can be controlled to enter the sleep mode; after the timing time of the second timer 40 reaches the second duration, the second timer 40 can output a second timing trigger signal, at this time, the after-installed vehicle-mounted smart device can be controlled to enter the shutdown mode. It can be understood that in this embodiment, the after-installed vehicle-mounted smart device first enters the sleep mode and then enters the shutdown mode. Therefore, the first time length set in this embodiment is less than the second time length. The specific time of the first time length and the second time length can be set according to actual conditions and user needs. For example, the first time length can be set to 1 minute, and the second time length can be set to 48 hours. In this way, the sleep mode can be maintained for 48 hours, and the user can quickly start the after-installed vehicle-mounted smart device within 48 hours.

[0060] In one embodiment, the aftermarket vehicle-mounted intelligent device control method further includes the following steps:

[0061] When the ignition switch signal is received as an on signal in the standby mode, sleep mode or shutdown mode of the after-installed vehicle-mounted intelligent device, the after-installed vehicle-mounted intelligent device is controlled to enter the working mode and the timing time is reset to zero.

[0062] In this embodiment, when the after-installed vehicle-mounted smart device is controlled to enter the working mode, the timer can be reset to zero, so that when the after-installed vehicle-mounted smart device is controlled to enter the standby mode or the sleep mode next time when the shutdown signal is received, the timer can restart the timing, so that the after-installed vehicle-mounted smart device can be prevented from entering the standby mode or the sleep mode prematurely. And resetting the timer can also ensure that the timer reading is accurate, avoiding cumulative errors and inaccurate calculations.

[0063] Reference Figure 2In one embodiment, when executing the step of continuously acquiring the ignition switch signal of the automobile, it also includes:

[0064] S500, continuously obtaining a power status signal of the vehicle;

[0065] S600, controlling the working state of the after-installed vehicle-mounted intelligent device according to the power state signal of the vehicle;

[0066] S700: When the power status of the vehicle is low on power, the after-installed vehicle-mounted smart device is controlled to enter shutdown mode;

[0067] S800: When the power status of the automobile is sufficient, the step of controlling the working status of the after-installed vehicle-mounted intelligent device according to the ignition switch signal is executed.

[0068] In this embodiment, when obtaining the ignition switch signal of the car, the power state signal of the car can also be obtained. Specifically, the power state information of the car, such as battery power, charging state, etc., can be read by connecting to the on-board diagnostic system interface of the car. Then, the working state of the after-installed vehicle-mounted intelligent device is controlled according to the power state signal of the car; it can be understood that the after-installed vehicle-mounted intelligent device plays an auxiliary role in the process of the user's driving, so when the power of the car power is insufficient, the after-installed vehicle-mounted intelligent device can be controlled to enter the shutdown mode first to reduce the power consumption of the car power; when the power of the car power is sufficient, the energy required for the after-installed vehicle-mounted intelligent device to work can be provided, so the step of controlling the working state of the after-installed vehicle-mounted intelligent device according to the ignition switch signal can be performed, so as to control the after-installed vehicle-mounted intelligent device to enter the working mode, standby mode or sleep mode. The specific standards of insufficient power and sufficient power in the power state can be set according to the actual power consumption of the car and the power consumption of the after-installed vehicle-mounted intelligent device.

[0069] The present invention also provides an aftermarket vehicle-mounted intelligent device based on the aftermarket vehicle-mounted intelligent device control method.

[0070] Reference Figure 3 In one embodiment, the aftermarket vehicle-mounted intelligent device includes:

[0071] Signal interface 10, used to connect to the ignition switch of the car;

[0072] A control circuit 20, wherein the input end of the control circuit 20 is connected to the signal interface 10, and the control circuit 20 is used to obtain an ignition switch signal of the vehicle through the signal interface 10, and control the working state of the after-installed vehicle-mounted intelligent device according to the ignition switch signal;

[0073] When the control circuit 20 detects that the ignition switch signal is an on signal, it controls the after-installed vehicle-mounted intelligent device to enter the working mode;

[0074] When the control circuit 20 detects that the ignition switch signal is an off signal, it controls the after-installed vehicle-mounted smart device to enter a standby mode and starts timing, and controls the after-installed vehicle-mounted smart device to enter a sleep mode or a shutdown mode according to the timing time.

[0075] In this embodiment, the signal interface 10 can directly connect the wire of the ignition switch to obtain the ignition signal; the signal interface 10 can also obtain the ignition signal through the vehicle's CAN bus, or connect the car's self-diagnosis interface through an interface adapter to obtain various information of the vehicle, including the ignition signal. The control circuit 20 can be composed of a control chip and electronic components such as capacitors and resistors. The input port of the control circuit 20 can be connected to the signal interface 10 to receive the ignition signal, and then control the working state of the after-installed vehicle-mounted intelligent device according to the ignition signal. The ignition switch signal can be divided into an on signal and an off signal; when the ignition switch signal is an on signal, the after-installed vehicle-mounted intelligent device can be controlled to enter the working mode, and when the ignition switch signal is an off signal, the after-installed vehicle-mounted intelligent device can be controlled to enter the standby mode. In the standby mode or the sleep mode, the time required for the after-installed vehicle-mounted intelligent device to enter the working mode is shorter, and in the shutdown mode, the time required for the after-installed vehicle-mounted intelligent device to enter the working mode is longer; in this way, the after-installed vehicle-mounted intelligent device in this solution can enter the working mode through hot wake-up in both the standby mode and the sleep mode, which can meet the user's needs for quick startup. Furthermore, the standards for the after-installed vehicle-mounted smart device to enter the standby mode, sleep mode and shutdown mode can be set according to the actual situation and user needs. In this way, when the user needs to use the after-installed vehicle-mounted smart device multiple times in a short period of time, there is no need to wait for a long time to start up, and entering the standby mode and sleep mode can also save energy consumption.

[0076] Reference Figure 3 In one embodiment, the after-installed vehicle-mounted intelligent device further includes a first timer 30 and a second timer 40, and the control circuit 20 is connected to the first timer 30 and the second timer 40. The control circuit 20 is used to control the first timer 30 and the second timer 40 to start timing when controlling the after-installed vehicle-mounted intelligent device to enter the standby mode, and control the after-installed vehicle-mounted intelligent device to enter the sleep mode when receiving the first timing trigger signal output by the first timer 30, and control the after-installed vehicle-mounted intelligent device to enter the shutdown mode when receiving the second timing trigger signal output by the second timer 40; wherein the first duration is less than the second duration;

[0077] The control circuit 20 is further configured to reset the timing of the first timer 30 and the second timer 40 to zero when controlling the aftermarket vehicle-mounted intelligent device to enter the working mode.

[0078] In this embodiment, for controlling the after-installed vehicle-mounted intelligent device to enter the sleep mode or shutdown mode, the first timer 30 and the second timer 40 can be used to perform timing, and the after-installed vehicle-mounted intelligent device can be controlled to enter the sleep mode or shutdown mode according to the timing time of the timer; after the after-installed vehicle-mounted intelligent device enters the standby mode, the first timer 30 and the second timer 40 are controlled to start timing. After the timing time of the first timer 30 reaches the first duration, the first timer 30 can output a first timing trigger signal to the control circuit 20, and the control circuit 20 can control the after-installed vehicle-mounted intelligent device to enter the sleep mode; after the timing time of the second timer 40 reaches the second duration, the second timer 40 can output a second timing trigger signal to the control circuit 20, and the control circuit 20 can control the after-installed vehicle-mounted intelligent device to enter the shutdown mode. It can be understood that in this embodiment, the after-installed vehicle-mounted intelligent device first enters the sleep mode and then enters the shutdown mode, so the first duration set in this embodiment is less than the second duration, and the specific time of the first duration and the second duration can be set according to the actual situation and user needs. Furthermore, when the control circuit 20 controls the after-installed vehicle-mounted intelligent device to enter the working mode, the timer can be reset to zero, so that when the after-installed vehicle-mounted intelligent device receives the shutdown signal next time to enter the standby mode or the sleep mode, the timer can restart the timing, which can prevent the after-installed vehicle-mounted intelligent device from entering the standby mode or the sleep mode prematurely. Furthermore, resetting the timer can ensure that the timer reading is accurate, avoiding cumulative errors and inaccurate calculations.

[0079] Reference Figure 3 In one embodiment, the aftermarket vehicle-mounted intelligent device further includes:

[0080] The power circuit 50 is connected to the control circuit 20 . The power input terminal of the power circuit 50 is used to connect to the car power supply. The power circuit 50 is used to convert the car power supply to supply power to the control circuit 20 .

[0081] In this embodiment, the power circuit 50 can be composed of a power chip or a DC-DC circuit. The power circuit 50 can convert the automobile power voltage into a suitable working voltage for the control circuit 20, so as to prevent the control circuit 20 from receiving a higher working voltage and causing damage to the chip or electronic components in the control circuit 20, or receiving a lower working voltage and causing the components in the control circuit 20 to not work properly. The specific circuit structure of the power circuit 50 can be referred to Figure 4 Set it up, where ACC represents the ignition switch signal, EN is the enable signal for the power circuit, V is the car power voltage, U1 is the power chip, and VSYS is the output voltage of the power chip.

[0082] In one embodiment, the input end of the power circuit 50 is also used to connect to the signal interface 10, and the power circuit 50 is used to supply power to the control circuit 20 when the ignition switch signal of the automobile is an on signal.

[0083] In this embodiment, the power chip in the power circuit 50 can be set to connect the enable pin to the signal interface 10. When the ignition switch signal is an on signal, a high-level electrical signal is output to the enable pin of the power chip. At this time, the power chip can supply power to the control circuit 20, so that the after-installed vehicle-mounted intelligent device can enter the working mode. When the after-installed vehicle-mounted intelligent device is in the sleep mode, when the ignition switch signal is an on signal, the ignition switch signal is converted into a signal that can be judged by the control circuit 20 through the transistor. At this time, the control circuit 20 in the sleep mode detects the ignition switch signal, immediately interrupts the sleep mode, and returns to the normal working state. The specific circuit structure of the power circuit 50 can be referred to Figure 5 The settings are performed, where ACC represents the ignition switch signal, EINT is the external interrupt signal, and PMU is the connection terminal with the power chip in the power circuit 50.

[0084] Reference Figure 3 In one embodiment, the aftermarket vehicle-mounted intelligent device further includes:

[0085] The memory 60 stores a control program for an aftermarket vehicle-mounted intelligent device. When the aftermarket vehicle-mounted intelligent device control program is executed by the controlled circuit 20 , the steps of the aftermarket vehicle-mounted intelligent device control method described above are implemented.

[0086] In this embodiment, the memory 60 can be a read-only memory 60 or a hard disk or other type of storage device. The after-installed vehicle-mounted intelligent device control program is stored in the memory 60, and the control circuit 20 can read and execute the after-installed vehicle-mounted intelligent device control program, thereby implementing the steps of the after-installed vehicle-mounted intelligent device control method described above; the user can also connect external devices according to actual conditions and modify the after-installed vehicle-mounted intelligent device control program stored in the memory 60.

[0087] The invention also provides a car.

[0088] In one embodiment, the automobile includes an automobile body and the after-installed vehicle-mounted intelligent device as described above. The after-installed vehicle-mounted intelligent device may be an after-installed product such as a vehicle-mounted smart large screen. It is understandable that since the after-installed vehicle-mounted intelligent device is used in the automobile of the present invention, the embodiment of the automobile of the present invention includes all technical solutions of all embodiments of the after-installed vehicle-mounted intelligent device, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0089] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A control method for an aftermarket vehicle-mounted intelligent device, characterized in that: The following steps are involved: Continuously obtain the car's ignition switch signal; Control the working status of the after-installed vehicle-mounted intelligent device according to the ignition switch signal; If the ignition switch signal is an on signal, the after-installed vehicle-mounted intelligent device is controlled to enter the working mode; If the ignition switch signal is an off signal, the after-installed vehicle-mounted smart device is controlled to enter a standby mode, and a timing is started, and the after-installed vehicle-mounted smart device is controlled to enter a sleep mode or a shutdown mode according to the timing time.

2. The control method of the aftermarket vehicle-mounted intelligent device according to claim 1, characterized in that: The step of controlling the after-installed vehicle-mounted intelligent device to enter the sleep mode or shutdown mode according to the timing time specifically includes: After the timing time reaches a first duration, the rear-mounted vehicle-mounted intelligent device is controlled to enter a sleep mode; After the timing time reaches the second duration, the rear-mounted vehicle-mounted intelligent device is controlled to enter the shutdown mode; wherein the first duration is less than the second duration.

3. The control method of the aftermarket vehicle-mounted intelligent device according to claim 1, characterized in that: The following steps are also included: When the ignition switch signal is received as an on signal in the standby mode, sleep mode or shutdown mode of the after-installed vehicle-mounted intelligent device, the after-installed vehicle-mounted intelligent device is controlled to enter the working mode and the timing time is reset to zero.

4. The control method of the aftermarket vehicle-mounted intelligent device according to claim 1, characterized in that: When executing the step of continuously acquiring the ignition switch signal of the automobile, it also includes: Continuously obtain the power status signal of the car; Control the working status of the after-installed vehicle-mounted intelligent devices according to the vehicle's power status signal; When the power status of the car is low on power, the after-installed vehicle-mounted smart device is controlled to enter shutdown mode; When the power state of the car is sufficient, the step of controlling the working state of the after-installed vehicle-mounted intelligent device according to the ignition switch signal is performed.

5. A post-installed vehicle-mounted intelligent device based on the post-installed vehicle-mounted intelligent device control method according to any one of claims 1 to 4, characterized in that: include: Signal interface, used to connect to the car's ignition switch; A control circuit, wherein an input end of the control circuit is connected to the signal interface, and the control circuit is used to obtain an ignition switch signal of the vehicle through the signal interface, and control the working state of the after-installed vehicle-mounted intelligent device according to the ignition switch signal; When the control circuit detects that the ignition switch signal is an on signal, the after-installed vehicle-mounted intelligent device is controlled to enter a working mode; When the control circuit detects that the ignition switch signal is an off signal, the after-installed vehicle-mounted intelligent device is controlled to enter a standby mode and start timing, and controls the after-installed vehicle-mounted intelligent device to enter a sleep mode or a shutdown mode according to the timing time.

6. The aftermarket vehicle-mounted intelligent device according to claim 5, characterized in that: The after-installed vehicle-mounted smart device further includes a first timer and a second timer, and the control circuit is connected to the first timer and the second timer. The control circuit is used to control the first timer and the second timer to start timing when the after-installed vehicle-mounted smart device is controlled to enter the standby mode, and when receiving the first timing trigger signal output by the first timer, control the after-installed vehicle-mounted smart device to enter the sleep mode, and when receiving the second timing trigger signal output by the second timer, control the after-installed vehicle-mounted smart device to enter the shutdown mode; wherein the first duration is less than the second duration; The control circuit is also used to reset the timing of the first timer and the second timer when controlling the after-installed vehicle-mounted intelligent device to enter the working mode.

7. The aftermarket vehicle-mounted intelligent device according to claim 5, characterized in that: The after-installed vehicle-mounted intelligent device also includes: A power supply circuit is connected to the control circuit. The power input terminal of the power supply circuit is used to connect to the car power supply. The power supply circuit is used to convert the car power supply to supply power to the control circuit.

8. The aftermarket vehicle-mounted intelligent device according to claim 7, characterized in that: The input end of the power supply circuit is also used to connect to the signal interface. The power supply circuit is used to supply power to the control circuit when the ignition switch signal of the automobile is an on signal.

9. The aftermarket vehicle-mounted intelligent device according to claim 5, characterized in that: The after-installed vehicle-mounted intelligent device also includes: A memory storing a control program for an aftermarket vehicle-mounted intelligent device. When the aftermarket vehicle-mounted intelligent device control program is executed by a controlled circuit, the steps of the aftermarket vehicle-mounted intelligent device control method according to any one of claims 1 to 4 are implemented.

10. An automobile, characterized in that: The invention comprises a vehicle body and a post-installed vehicle-mounted intelligent device as claimed in any one of claims 5 to 9.

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