CN113721147A - Vehicle-mounted terminal power failure detection control device, power failure rapid power consumption reduction system and method - Google Patents
Vehicle-mounted terminal power failure detection control device, power failure rapid power consumption reduction system and method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
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Abstract
The utility model relates to a main electric power failure detection controlling means of on-vehicle storage battery, including power down detection circuitry and first diode, power down detection circuitry connects the negative pole of first diode, the on-vehicle power consumption module of anodal connection of first diode, wherein, power down detection circuitry is used for detecting the main electric power failure of on-vehicle storage battery sends power down information to hardware platform system module, and passes through first diode to on-vehicle power consumption module sends power down information. The application also provides a system and a method for rapidly reducing power consumption in power failure. According to the vehicle-mounted terminal power failure detection control device, the system and the method for rapidly reducing power failure, provided by the invention, the time for storing important data and prolonging the power supply of the standby power supply can be further prolonged under the condition that the size of the power supply of the standby power supply is not increased.
Description
Technical Field
The application relates to the field of power consumption management of commercial vehicles, in particular to a vehicle-mounted terminal power failure detection control device, a power failure rapid power consumption reduction system and a power failure rapid power consumption reduction method.
Background
At present, the requirements of the automobile safety field on data storage and protection are higher and higher, and especially under the condition that an automobile storage battery is unstable or suddenly loses power, enough time is needed for standby power supply to continuously store important data, so that loss of key data is prevented, and instantaneous restart and crash of a system are avoided. At present, an automobile is generally provided with a power consumption module, for example, a vehicle-mounted intelligent large-screen terminal, and under the condition that an automobile battery is unstable or power is suddenly cut off, the large screen of the automobile can consume standby power of the automobile for power supply.
Fig. 1 is a schematic diagram of a power supply scheme of a vehicle-mounted terminal in the prior art. As shown in figure 1, the single chip microcomputer and the android intelligent hardware platform work normally after being powered on, normal communication is kept through serial port receiving and sending, and meanwhile, the interrupt pins of the single chip microcomputer and the android intelligent hardware platform give immediate response to an emergency. The display screen power supply DC is switched on and off through an android hardware platform control pin LCD _ POW, and the power supply DC supplies power to the display screen equipment normally after the power supply DC is switched on and displays a normal picture. When the power failure detection circuit detects that the main power voltage of the main electric vehicle battery is too low, the low-level signal is converted into a low-level signal to inform the single chip microcomputer to interrupt the main power of the main electric vehicle battery to be too low, at the moment, the standby electric super capacitor supplies power to work, the power supply holding time of the super capacitor is generally shorter by about 2S, and the power failure detection circuit is mainly used for storing important data and protecting a system after the main power failure of the electric vehicle battery. However, the display screen is a main power consumption device of the vehicle-mounted terminal, and is generally about 2W, and normally, the total power consumption of the vehicle-mounted terminal is about 4W.
Therefore, the electric quantity of the standby power supply of the automobile is limited, and the power consumption module, especially the large screen, of the automobile consumes a large amount of standby power supply under the condition of main power failure of the automobile. In this regard, it is conceivable to increase the capacity of the backup power supply, however, if the capacity of the backup power supply is increased, the volume of the backup power supply is increased, the cost of the vehicle is increased, and the overall design of the vehicle is not facilitated.
Disclosure of Invention
Based on the above problems, the present application provides a new design scheme for supplying power to the backup power, which can further prolong the time for storing important data without increasing the volume of the backup power supply.
According to a first aspect of the invention, the main power failure detection control device for the vehicle-mounted storage battery comprises a power failure detection circuit and a first diode, wherein the power failure detection circuit is connected with a negative electrode of the first diode, and a positive electrode of the first diode is connected with a vehicle-mounted power consumption module, wherein the power failure detection circuit is used for detecting the power failure of the main power of the vehicle-mounted storage battery, sending power failure information to a hardware platform system module, and sending the power failure information to the vehicle-mounted power consumption module through the first diode.
According to a second aspect of the invention, the system for rapidly reducing the power consumption of the vehicle-mounted terminal in the case of power failure comprises a power failure detection control device, a vehicle-mounted power consumption module and a hardware platform system module, wherein the power failure detection control device is connected with the vehicle-mounted power consumption module and is used for detecting the power failure of a main power supply of a vehicle-mounted storage battery and sending power failure information to the vehicle-mounted power consumption module and the hardware platform system module.
According to a third aspect of the present invention, a method for quickly reducing power consumption of a vehicle-mounted terminal in case of power failure is provided, which includes:
a power failure detection circuit of the power failure detection control device is used for detecting the power failure of the main power of the vehicle-mounted storage battery;
the power failure detection circuit sends power failure information to the vehicle-mounted power consumption module; and
and the power failure detection circuit sends the power failure information to a hardware platform system module.
According to a fourth aspect of the present invention, a vehicle-mounted terminal is provided, which includes the system for rapidly reducing power consumption when the vehicle-mounted terminal is powered off according to the second aspect.
According to a fifth aspect of the present invention, there is provided a commercial vehicle including the in-vehicle terminal of the fourth aspect.
According to the vehicle-mounted terminal power failure detection control device, the system and the method for rapidly reducing power consumption in power failure, the power failure detection control device is directly connected with the power consumption module, the power consumption module can be immediately closed under the condition of power failure, the consumption of the power consumption module on standby power supply is reduced, and the time for storing important data and other functions is prolonged under the condition that the capacity and the volume of the standby power supply are not increased. In addition, one or two diodes in the power failure detection control device are arranged, so that the normal power failure control of the power consumption module and other vehicle-mounted equipment or units can be ensured under the condition that the main power of the vehicle-mounted storage battery is powered off; secondly, under the condition that the automobile terminal works normally, the hardware platform module is ensured to control the normal opening and closing of the power consumption module, and the influence on other equipment or units is isolated; finally, the diode is added, the change of the circuit is small, common diodes can be adopted, the cost is extremely low, and according to the scheme of the application, under the condition that the original circuit is changed extremely little and the cost is increased little, the time for storing important data and other functions is prolonged.
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In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application.
Fig. 1 is a schematic diagram of a power supply scheme of a vehicle-mounted terminal in the prior art.
Fig. 2 is a schematic diagram of a vehicle-mounted terminal power supply system according to a first embodiment of the present application.
Fig. 3 is a schematic diagram of a vehicle-mounted terminal power supply system according to a second embodiment of the present application.
Fig. 4 is a schematic diagram of an in-vehicle terminal power supply system according to a third embodiment of the present application.
FIG. 5 is a flowchart of a method for rapidly reducing power consumption of a vehicle-mounted terminal when the vehicle-mounted terminal is powered off according to an embodiment of the application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The inventor considers that in the scheme shown in fig. 1, it is difficult to immediately cut off the power supply of the standby power supply of the vehicle-mounted display screen, reduce the power supply of the standby power supply to the display screen, and increase the power supply of the standby power supply for storing important data, for the following reasons:
1. when the power failure detection circuit detects that the main power of the automobile storage battery is in power failure, the single chip microcomputer needs to acquire power failure information through an interrupt GPIO (General-Purpose Input/Output) port, the time is about 100ms, and then the android intelligent hardware platform is informed through a serial port or an interrupt port, so that the main power is in power failure. The android hardware platform system controls the display screen to be powered on and off through the GPIO port LCD _ POW, so that the purpose of reducing power consumption and saving electricity is achieved, however, the transmission process of the power failure information from the power failure detection circuit to the single chip microcomputer to the android hardware platform to the display screen is very time-consuming, and a large amount of standby electricity is consumed by the display screen in the process;
2. the application layer of the android intelligent hardware platform is quite slow in response and unstable; if the current process is in the condition of priority processing, hundreds of milliseconds are needed before the LCD _ POW control is disconnected after the main power failure is detected, and the power consumption is quite high for the standby power super capacitor;
3. even if the power failure detection circuit is directly connected to the android intelligent hardware platform without a single chip microcomputer, the corresponding time is only optimized for about 100ms, and the android system and other uncertainties cannot achieve the effect of instant effect.
In order to solve the problems, the application provides a vehicle-mounted terminal power failure detection control device, a system and a method for rapidly reducing power consumption in power failure. Fig. 2 is a schematic diagram of a vehicle-mounted terminal power supply system according to a first embodiment of the present application.
As shown in fig. 2, the system includes an automobile battery, an MOS reverse-connection-prevention voltage-stabilization protection circuit, a DC-DC power supply, a charging circuit, a standby power supply device, a discharging circuit, a power-down detection control device, a power-down information acquisition module, a hardware platform system module, and a power consumption module, wherein the automobile battery may include a +12V/24V battery; the standby power supply can comprise super capacitor power supply, and generally has the capacity of 3F \3.3F \6.8F and the like; the power failure information acquisition module comprises a singlechip, such as an STM32F072 singlechip; the hardware platform system module comprises an android hardware platform system; the power consuming module comprises a display screen, which may comprise an LCD display screen. It should be noted that, as long as the functions, specific implementation manners, or specific devices or models that can be adopted by those skilled in the art can be realized, the various devices, apparatuses, modules, or units that constitute the system, such as the automobile battery, the power failure information acquisition module, the hardware platform system module, and the power consumption module, are not limited in this application.
In fig. 2, the dotted line is a power line, which indicates the power supply of the automobile battery and the charging and discharging of the standby power supply, as shown in fig. 2, the automobile power supply supplies power to the MOS reverse-connection-prevention voltage-stabilization protection circuit, the MOS reverse-connection-prevention voltage-stabilization protection circuit supplies power to the DC-DC power supply, and the DC-DC power supply supplies power to other devices or modules, including the charging circuit supplying power to the standby power supply, the power failure information acquisition module, the hardware platform system module, and the power consumption module.
In fig. 2, a solid line represents a signal line, which represents a transmission process of signals (particularly, power failure information) between the power failure detection control device, the power failure information acquisition module, the hardware platform system module, and the power consumption module. As shown in fig. 2, after detecting the power failure, the power failure detection control device sends power failure information to the power supply module of the power consumption module through a connection line between the power consumption module and the power failure detection control device, and the power consumption module is turned off according to the power failure information. Specifically, the power failure detection control device is directly connected with a power supply enabling terminal of the power consumption module, and the power supply enabling terminal of the power consumption module can be a base electrode of a power supply DC triode, for example; the base electrode excites the collector electrode to control power supply to the MOS tube. It should be noted that the enable terminal is used to control the power consuming module to be turned on and turned off, and the power enable terminal of the power consuming module may also be a unit or a part in other forms as long as the function of controlling the power consuming module to be turned on and turned off is achieved, which is not limited in this application.
The power failure detection control device sends power failure information to the power failure information acquisition module while sending the power failure information to the power consumption module, the power failure information acquisition module sends the power failure information to the hardware platform system module, and the hardware platform system module controls other modules or units to be closed.
In the embodiment shown in fig. 2, because the power failure detection control device is directly connected to the power consumption module, in the case of power failure, the power consumption module is not closed after the power failure information is acquired by the power failure information acquisition module and the hardware platform system module, but the power consumption module can be immediately closed, so that the time required for closing the power consumption module after the main power failure is greatly shortened, the consumption of the power consumption module on the standby power supply is reduced, and the duration for storing important data and other functions is prolonged without increasing the capacity and volume of the standby power supply.
Fig. 3 is a schematic diagram of a vehicle-mounted terminal power supply system according to a second embodiment of the present application.
Compared with the fig. 2, the difference of fig. 3 is that the power-down detection control device includes a power-down detection circuit and a diode D1, the power-down detection circuit is connected to the cathode of the diode D1, and the anode of the diode D1 is connected to the vehicle-mounted power consumption module, specifically, the power-down detection control device is directly connected to the power enable terminal of the power consumption module, wherein the power-down detection circuit is used for detecting the power-down of the main power of the vehicle-mounted battery, sending power-down information to the hardware platform system module, and sending the power-down information to the vehicle-mounted power consumption module through the diode D1. The power down information is at a low level and can be transmitted to the vehicle power consumption module through the diode D1.
Fig. 4 is a schematic diagram of an in-vehicle terminal power supply system according to a third embodiment of the present application.
Compared with the fig. 3, the difference of fig. 4 lies in that the power failure detection control device includes a power failure detection circuit and a diode D1, and further includes a diode D2, the power failure detection circuit is connected with the negative electrode of the diode D2, the positive electrode of the diode D2 is connected with a power failure information acquisition module, and the power failure information acquisition module is connected with a hardware platform system module, wherein, under the condition of detecting the power failure of the main power of the vehicle-mounted battery, the power failure detection circuit sends the power failure information to the vehicle-mounted power consumption module through the diode D1, and sends the power failure information to the hardware platform system module through the diode D2. The power-down information is low level and can be transmitted to the vehicle-mounted power consumption module and the hardware platform system through the diode D1 and the diode D2, respectively.
In the embodiment shown in fig. 3, a diode D1 is provided. In the embodiment shown in fig. 4, two diodes D1 and D2 are provided. Under the condition that main power fails, the power down detection circuit immediately controls the power supply enabling of the power consuming module through the diode D1, the power supply of the power consuming module is disconnected, meanwhile, the power down information sent by the power down detection circuit is sent to the power down information acquisition module through the diode D2, the power down information acquisition module acquires the power down information (for example, through an interrupt GPIO port) and sends the power down information to the hardware platform system module, and the hardware platform system module starts the control of other devices, including the control of power supply. Under normal operation, if the hardware platform system module wants to perform power supply control on the power consuming module, for example, if the hardware platform system module wants to turn on the power consuming module, a high level is sent to the power consuming module, and the high level can pass through the diode D1 but cannot pass through the diode D2; if it is desired to shut down the power consuming module, a low level is sent to the power consuming module, which cannot pass through the diode D1. Therefore, the diode D1 and the diode D2 can isolate the influence of the power supply control signal of the hardware platform system module to the power consuming module on other devices under the condition of normal operation.
Therefore, due to the arrangement of the two diodes in the power failure detection control device, on one hand, under the condition that the main power of the vehicle-mounted storage battery is powered off, normal power failure control of the power consumption module and other vehicle-mounted equipment or units can be guaranteed; on the other hand, under the condition that the automobile terminal works normally, the hardware platform module is ensured to control the normal opening and closing of the power consumption module, and the influence on other equipment or units is isolated.
In the embodiments shown in fig. 2, fig. 3, and fig. 4, the power failure detection control apparatus may also send the power failure information to the hardware platform system module without passing through the power failure information acquisition module, and the hardware platform system module then controls other modules according to the power failure information.
On the basis of the schemes disclosed in fig. 2, fig. 3 and fig. 4, the application also provides a method for rapidly reducing power consumption of the vehicle-mounted terminal when the vehicle-mounted terminal is powered off.
FIG. 5 is a flowchart of a method for rapidly reducing power consumption of a vehicle-mounted terminal when the vehicle-mounted terminal is powered off according to an embodiment of the application.
As shown in fig. 5, the method includes the following steps.
And S501, a power failure detection circuit of the power failure detection control device is used for detecting the power failure of the main power of the vehicle-mounted storage battery.
As shown in fig. 2, 3 and 4, the power down detection circuit of the power down detection control apparatus detects whether the input to the DC-DC power supply is powered down, and sends power down information to the relevant vehicle-mounted terminal devices and units when power down is detected.
Step S502, the power failure detection circuit sends power failure information to the vehicle-mounted power consumption module.
In the embodiment shown in fig. 2, after detecting the power failure, the power failure detection circuit sends power failure information to the power supply module of the power consumption module through the connection line between the power consumption module and the power failure detection circuit. In the embodiments shown in fig. 3 and 4, the power failure detection circuit sends power failure information to the vehicle-mounted power consumption module through the diode D1 after detecting power failure.
Step S503, the power failure detection circuit sends power failure information to the hardware platform system module.
In the embodiments shown in fig. 2 and 3, the power failure detection circuit sends power failure information to the hardware platform system module after detecting power failure; in the embodiment shown in fig. 4, the power down detection circuit sends power down information to the hardware platform system module via diode D2, and the hardware platform system module controls the shutdown of other modules or units. Under the condition that the power failure information is required to be acquired through the power failure information acquisition module, the power failure detection circuit sends the power failure information to the power failure information acquisition module connected with the hardware platform system module through the diode D2, and the power failure information acquisition module sends the power failure information to the hardware platform system module.
The application also provides a vehicle-mounted terminal, which comprises the system for rapidly reducing the power consumption of the vehicle-mounted terminal in the power-down state shown in fig. 2, 3 and 4.
The application also provides a commercial vehicle, and the commercial vehicle comprises a vehicle-mounted terminal with a system for rapidly reducing power consumption in a power failure mode. Wherein, the commercial vehicles comprise trucks, taxis, commercial concrete vehicles, muck vehicles, school buses, passenger vehicles and the like.
In commercial vehicles, there are various power consuming modules, of which large screens have become a trend or are becoming a reality. The condition that main electric battery falls down among the commercial car is very general, when falling the electricity and starting reserve power supply unit, if power consumption module (for example, the large screen) is too much to reserve power supply unit's electric quantity consumption, will be very unfavorable to the storage of important data, if only increase reserve power supply unit's electric quantity, so need greatly increased reserve power supply unit's volume, this is to this commercial car with regard to the space is compelled, from the design very inconvenient, moreover, increase reserve power supply unit's volume can increase the big cost certainly, thereby lead to the promotion of commercial car cost.
According to the scheme of the invention, firstly, under the condition that the size of the standby power supply device is not required to be increased, the power consumption module can be immediately turned off under the condition of main power failure by only adding one or two diodes, so that more electric quantity is saved for the storage of important data, and the time for storing the important data is increased; secondly, the scheme of the invention has very little change on the original power supply system of the commercial vehicle, and the cost of the diode is low, so that the cost is hardly increased; finally, the added diodes can not change or damage the control logic of the original system, particularly the control mode of the hardware platform system module under the power-down and non-power-down conditions, and the system of the commercial vehicle still keeps stable and reliable.
According to the vehicle-mounted terminal power failure detection control device, the system and the method for rapidly reducing power consumption in power failure, the power failure detection control device is directly connected with the power consumption module, the power consumption module can be immediately closed under the condition of power failure, the consumption of the power consumption module on standby power supply is reduced, and the time for storing important data and other functions is prolonged under the condition that the capacity and the volume of the standby power supply are not increased. In addition, due to the arrangement of the two diodes in the power failure detection control device, firstly, under the condition that the main power of the vehicle-mounted storage battery is powered off, normal power failure control of a power consumption module and other vehicle-mounted equipment or units can be ensured; secondly, under the condition that the automobile terminal works normally, the hardware platform module is ensured to control the normal opening and closing of the power consumption module, and the influence on other equipment or units is isolated; finally, the diode is added, the change of the circuit is small, common diodes can be adopted, the cost is extremely low, and according to the scheme of the application, under the condition that the original circuit is changed extremely little and the cost is increased little, the time for storing important data and other functions is prolonged.
It should be understood that the above-described device embodiments are merely exemplary, and that the devices disclosed herein may be implemented in other ways. For example, the division of the units/modules in the above embodiments is only one logical function division, and there may be another division manner in actual implementation. For example, multiple units, modules, or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented.
In addition, unless otherwise specified, each functional unit/module in each embodiment of the present invention may be integrated into one unit/module, each unit/module may exist alone physically, or two or more units/modules may be integrated together. The integrated units/modules may be implemented in the form of hardware or software program modules.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the description of the embodiments is only intended to facilitate the understanding of the methods and their core concepts of the present application. Meanwhile, a person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of the present application. In view of the above, the description should not be taken as limiting the application.
Claims (17)
1. The utility model provides a main power failure detection controlling means of on-vehicle storage battery, includes:
a power-down detection circuit;
a first diode, wherein the power-down detection circuit is connected with the cathode of the first diode, the anode of the first diode is connected with the power supply enabling terminal of the vehicle-mounted power consumption module,
the power failure detection circuit is used for detecting the power failure of the main power of the vehicle-mounted storage battery and sending power failure information to the hardware platform system module.
2. The power down detection control device of claim 1, further comprising a second diode, the power down detection circuit being connected to a cathode of the second diode, an anode of the second diode being connected to the hardware platform system module, wherein the power down detection circuit sending power down information to the hardware platform system module comprises: and the power failure detection circuit sends the power failure information to the hardware platform system module through the second diode.
3. The power failure detection control device according to claim 2, wherein a positive electrode of the second diode is connected to a power failure information acquisition module, and the power failure information acquisition module is connected to the hardware platform system module.
4. The power failure detection control device according to any one of claims 1 to 3, wherein the vehicle-mounted power consumption module includes a vehicle-mounted display screen.
5. The system for rapidly reducing the power consumption of the vehicle-mounted terminal in the case of power failure comprises a power failure detection control device, a vehicle-mounted power consumption module and a hardware platform system module, wherein the power failure detection control device is connected with the vehicle-mounted power consumption module, and is used for detecting the power failure of a main power of a vehicle-mounted storage battery and sending power failure information to the vehicle-mounted power consumption module and the hardware platform system module.
6. The system of claim 5, wherein the power-down detection control device comprises a power-down detection circuit and a first diode, the power-down detection circuit is connected with a negative electrode of the first diode, and an anode of the first diode is connected with a power supply enabling terminal of the vehicle-mounted power consumption module, wherein the power-down detection circuit is used for detecting the power-down of a main power of the vehicle-mounted battery and sending power-down information to the vehicle-mounted power consumption module through the first diode.
7. The system of claim 6, wherein the power down detection control device further comprises a second diode, the power down detection circuit is connected to a cathode of the second diode, an anode of the second diode is connected to the hardware platform system module, and the power down detection circuit sends the power down information to the hardware platform system module through the second diode in response to detecting a power down of the main power of the vehicle-mounted battery.
8. The system of claim 7, further comprising a power down information acquisition module, wherein the anode of the second diode is connected to the power down information acquisition module, which is connected to the hardware platform system module.
9. The system of claim 7, wherein the power-down information obtaining module comprises a single chip microcomputer, and the hardware platform system module comprises an android hardware platform system.
10. The system of any one of claims 5 to 9, wherein the onboard power consuming module comprises an onboard display screen.
11. A method for quickly reducing power consumption of a vehicle-mounted terminal in case of power failure comprises the following steps:
a power failure detection circuit of the power failure detection control device is used for detecting the power failure of the main power of the vehicle-mounted storage battery;
the power failure detection circuit sends power failure information to the vehicle-mounted power consumption module; and
and the power failure detection circuit sends the power failure information to a hardware platform system module.
12. The method of claim 10, wherein the power down detection circuit sending power down information to an onboard power consumption module comprises:
and the power failure detection circuit sends the power failure information to the vehicle-mounted power consumption module through a first diode of the power failure detection control device.
13. The method of claim 11, wherein the power down detection circuit sending power down information to a hardware platform system module comprises: and the power failure detection circuit sends power failure information to the hardware platform system module through a second diode of the power failure detection control device.
14. The method of claim 13, wherein the power down detection circuit sending power down information to the hardware platform system module through a second diode of the power down detection control device comprises: and the power failure detection circuit sends power failure information to a power failure information acquisition module connected with the hardware platform system module through a second diode of the power failure detection control device.
15. The method of any one of claims 11 to 14, wherein the vehicle power consuming module comprises a vehicle display screen.
16. An in-vehicle terminal comprising the system for rapidly reducing power consumption when the in-vehicle terminal is powered down as claimed in any one of claims 5 to 10.
17. A commercial vehicle comprising the in-vehicle terminal according to claim 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784491.3A CN113721147A (en) | 2021-07-12 | 2021-07-12 | Vehicle-mounted terminal power failure detection control device, power failure rapid power consumption reduction system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784491.3A CN113721147A (en) | 2021-07-12 | 2021-07-12 | Vehicle-mounted terminal power failure detection control device, power failure rapid power consumption reduction system and method |
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| CN113721147A true CN113721147A (en) | 2021-11-30 |
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|---|---|---|---|
| CN202110784491.3A Pending CN113721147A (en) | 2021-07-12 | 2021-07-12 | Vehicle-mounted terminal power failure detection control device, power failure rapid power consumption reduction system and method |
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| CN (1) | CN113721147A (en) |
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