KR101545317B1 - Apparatus and Method of Controlling the Power of Tablet used for Transmitting Vehicle Driving Information - Google Patents

Apparatus and Method of Controlling the Power of Tablet used for Transmitting Vehicle Driving Information Download PDF

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Publication number
KR101545317B1
KR101545317B1 KR1020140023692A KR20140023692A KR101545317B1 KR 101545317 B1 KR101545317 B1 KR 101545317B1 KR 1020140023692 A KR1020140023692 A KR 1020140023692A KR 20140023692 A KR20140023692 A KR 20140023692A KR 101545317 B1 KR101545317 B1 KR 101545317B1
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KR
South Korea
Prior art keywords
power
smart tablet
control signal
tablet
smart
Prior art date
Application number
KR1020140023692A
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Korean (ko)
Inventor
김민수
천승환
Original Assignee
목포대학교산학협력단
(주)도울정보기술
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Priority to KR1020140023692A priority Critical patent/KR101545317B1/en
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Publication of KR101545317B1 publication Critical patent/KR101545317B1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken

Abstract

The present invention relates to a power control apparatus and method for a smart tablet for transmitting vehicle driving information, and more particularly, to a power control apparatus and method for controlling a power supply of a smart tablet, To a smart tablet power control device and method for controlling the smart tablet to be turned on and controlling the smart tablet to be turned off after the vehicle is turned off.
According to the present invention, in order to use the smart tablet as a smart bus terminal, it is determined whether or not the power is supplied according to whether the vehicle is started or not. The smart tablet is controlled to turn on the smart tablet only when the vehicle is started. Can be controlled to be turned off. Accordingly, it is possible to operate the terminal by simply starting or stopping the vehicle, so that it is possible to prevent the risk of accidents due to the troubles of operating the button additionally to the driver, and to turn on the smart tablet only when the vehicle is in operation. The problem of battery discharge of the battery can be solved.

Figure R1020140023692

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power control apparatus for a smart tablet for transmitting vehicle driving information,

The present invention relates to a power control apparatus and method for a smart tablet for transmitting vehicle driving information, and more particularly, to a power control apparatus and method for controlling a power supply of a smart tablet, To a smart tablet power control device and method for controlling the smart tablet to be turned on and controlling the smart tablet to be turned off after the vehicle is turned off.

 The tablet terminal is configured to perform an operation of turning on and off the terminal according to a manual operation of a power switch button. Accordingly, when the smart tablet is used as a smart terminal in a bus used in navigation or a bus information system (BIS), there is a problem in that a separate power switch button must be operated in order to turn on and off the smart tablet.

The smart tablet performs a sleep mode to conserve battery when not used for a long time, but a smart terminal used in a navigation system or a bus information system should be used while the sleep mode is released, since it must be always on during vehicle operation.

If the Smart Tablet is connected to the vehicle's power source at all times and you forget to turn on the car and turn on the tablet computer, the battery may be discharged due to continuous charging. In addition, even if a smart tablet is connected to a constant power source of a vehicle, the user has to press the power switch of the smart tablet to turn on the smart tablet.

On the other hand, even if the Smart Tablet is connected to a power source after the same start-up as the vehicle's cigar power, the user must always press the power switch to turn the Smart Tablet on and off.

Accordingly, there is a need for a technique for a power control device that controls the power of the smart tablet to be turned on and off according to whether the vehicle is started or not.

Since the smart tablet has a built-in battery, when power is supplied from the start of the vehicle, some devices such as a navigation device are limitedly powered on and off depending on whether the vehicle is started or not.

SUMMARY OF THE INVENTION It is an object of the present invention to determine whether a smart tablet is supplied with power according to whether the vehicle is started or not, and to control the smart tablet to be turned on only when the vehicle is started, And to turn off the power supply of the smart tablet.

In order to solve the above problems, the present invention provides a power control device for controlling power on / off of a smart tablet mounted on a vehicle, the power control device being connected to a vehicle wiring to which DC power is supplied only after starting of the vehicle, A DC-DC converter for converting a voltage of a DC power supplied through the DC-DC converter; A power supply line connecting the DC-DC converter and the smart tablet to supply power converted by the DC-DC converter to the smart tablet; And a control unit for generating a control signal for controlling the power supply of the smart tablet to be turned on when the supply of the DC power is started, A power control section for generating an off control signal for controlling the off control signal to be turned off; And a control signal line for transmitting the on-control signal and the off-control signal to the smart tablet.

Preferably, the power control apparatus further includes a power check line for providing a power check signal to the power control unit, the power check signal indicating whether the smart tablet is turned on / off from the smart tablet, When the tablet is turned off and the supply of the DC power is started, an ON control signal for controlling the power supply of the smart tablet is generated, and when the supply of the DC power is cut off and the power of the smart tablet is turned on, Off " control signal for controlling the " off "

The power supply control device may further include a capacitor disposed between the vehicle wiring and the power supply control unit and supplying power to the power supply control unit for a predetermined time from the moment when the supply of the DC power is interrupted.

Preferably, the power control apparatus further includes an abnormality detection line for providing an abnormality detection signal to the power supply control unit, the abnormality detection signal indicating abnormality of the smart tablet from the smart tablet, The controller may generate a rebooting control signal for turning off the power of the smart tablet and turning it on again, and may provide the rebooting control signal to the smart tablet.

In order to solve the above problems, the present invention provides a power supply control method for controlling power on / off of a smart tablet for transmitting vehicle driving information mounted on a vehicle, comprising: (a) Converting the DC power supplied through the vehicle wiring supplied with the DC power to supply to the smart tablet; (b) determining whether the power supply control unit is supplied with DC power through the vehicle wiring; (c) the power control unit determining whether the smart tablet is turned on / off; And (d) the power control unit generates an on control signal for controlling the power supply of the smart tablet to be turned on when the smart tablet is off and the supply of the direct current power is started, and supplies the generated on control signal to the smart tablet, Generating an off control signal for turning off the power of the tablet smart terminal when the smart tablet is turned off and providing the off tablet control signal to the smart tablet, .

In order to attain the above object, the present invention provides a computer-readable recording medium on which a program for realizing the above method is recorded.

According to the present invention, it is determined whether or not power is supplied to the smart tablet according to whether the vehicle is started or not. In this case, the smart tablet is controlled to be turned on only when the vehicle is started and the smart tablet is controlled to be turned off . Accordingly, it is possible to operate the terminal by simply starting or stopping the vehicle, so that it is possible to prevent the risk of accidents due to the troubles of operating the button additionally to the driver, and to turn on the smart tablet only when the vehicle is in operation. The problem of battery discharge of the battery can be solved.

1 is a block diagram showing a power control device of a smart tablet according to the present invention.
2 is a block diagram showing a power control unit;
3 is a flowchart illustrating a power control method of a smart tablet according to the present invention.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 is a block diagram illustrating a power control apparatus for a smart tablet according to the present invention.

1, a power controller 100 for a smart tablet according to the present invention includes a DC-DC converter 110, a power supply line 112, a power supply controller 120, and a control signal line 121 A power check line 113, a capacitor 130, and an anomaly detection line 114, as shown in FIG.

In the present invention, the smart tablet 200 is a tablet computer mounted on a vehicle, and includes a main processor, a memory, a GPS (Global Positioning System) sensor, and the like.

In particular, the smart tablet 200 of the present invention is mounted on a vehicle such as a passenger car, a truck, or a bus, and measures driving information of the vehicle and transmits the measured driving information to an external server. The terminal uses a GPS (Global Positioning System) And a driving information related application capable of performing various functions by transmitting the generated driving information to an external server and exchanging various information with the server.

In the bus information system (BIS), a terminal device is installed in each bus to generate bus operation information and notify bus passengers of various information. The smart tablet 200 of the present invention is installed in a bus in a bus information system A part of the bus information system can be implemented.

The DC-DC converter 110 is connected to the vehicle wiring 111 to which the DC power is supplied only after the start of the vehicle. The DC-DC converter 110 converts the voltage of the DC power supplied through the vehicle wiring 111, And supplies it to the tablet 200.

The power supply wiring in the vehicle is divided into a constant power supply line that always supplies power regardless of whether the vehicle is started or a line that supplies power only after the vehicle starts. The DC-DC converter 110 according to the present invention is connected to the vehicle wiring 111 to which the DC power is supplied only after the start of the vehicle, not the constant power wiring in order to prevent the danger of discharge.

The voltage of the DC power supplied varies according to the type of each vehicle, and the voltage of the necessary power source may be different depending on the type of each smart tablet. The DC-DC converter 110 determines the input voltage and the output voltage according to the type of the vehicle to be mounted and the type of the tablet terminal to be used. For example, when mounted on a bus, the DC-DC converter 110 can convert the 24V DC power supplied by the bus to a 5V DC power source, which is the rated voltage of the general smart tablet.

The power supply line 112 is a wiring path connecting the DC-DC converter 110 and the smart tablet 200, and supplying power converted by the DC-DC converter 110 to the smart tablet 200 .

The power supply line 112 has a connection interface corresponding to a charging terminal standard of the smart tablet 200 at a portion connected to the smart tablet 200 and is connected to the smart tablet 200 through a connection interface do. Since the charging terminal interface differs according to the type of the smart tablet 200, an appropriate connection interface can be selected according to the type of the smart tablet 200 used in the power supply line 112.

The power control unit 120 is connected to the vehicle wiring 111 to determine whether or not DC power is supplied. When the supply of the DC power is started, the power control unit 120 generates an ON control signal for controlling the power supply of the smart tablet 200, And generates an off control signal for controlling the power supply of the smart tablet 200 to be turned off when the power supply is cut off.

The generated on-control signal and the off-control signal are transmitted to the smart tablet 200 through the control signal line 121.

The control signal line 121 is connected to the place where the power switch of the smart tablet is removed, and transmits the on control signal and the off control signal, which are the same signals as those generated when the power switch of the tablet terminal is pressed, to the smart tablet 200 .

As described above, the smart tablet 200 has a power switch for turning on and off the power. In the present invention, the conventional power switch is removed from the smart tablet 200 and the control signal line is connected to the removed place, so that the smart tablet 200 is automatically turned on and off by the power control unit 130. The control signal line 121 is connected to the contact to which the conventional power switch is connected.

On the other hand, the smart tablet 200 generates a power check signal indicating whether the smart tablet 200 is on / off, and provides the power check signal to the power control unit 120 through the power check line 113. The power control unit 120 may determine whether the smart tablet 200 is on or off through a power check signal.

In addition, the smart tablet 200 monitors an abnormality of the user and generates an abnormality detection signal indicating abnormality when the abnormality is detected, and provides the abnormality detection signal to the power control unit 120 through the abnormality detection line 114.

The power control unit 120 may generate a rebooting control signal for turning off the power of the smart tablet 120 and turning it on again and providing the rebooting control signal to the smart tablet 200 when an abnormality sensing signal is received through the abnormality sensing line 114 .

The capacitor 130 is disposed between the vehicle wiring 111 and the power source control unit 120 and supplies power to the power source control unit 120 for a predetermined time from the moment when the DC power source is cut off through the vehicle wiring line 111 . The power control unit 120 performs a function using the DC power supplied from the vehicle wiring 120. If the DC power is cut off, the power control unit 120 can not perform the functions due to the power interruption. Therefore, even if the supply of DC power is interrupted, a configuration similar to that of the capacitor 130 is required to generate the above-described off-control signal and transmit it to the smart tablet 200.

2 is a block diagram showing a power supply control unit.

2, the power control unit 120 includes a power supply determination unit 121, a tablet power determination unit 122, a tablet abnormality sensing unit 123, and a control signal generation unit 124.

The power supply determination unit 121 is a component for determining whether or not DC power is supplied through the vehicle wiring 111. The tablet power determination unit 122 receives a power check signal received through the power check line 113 The tablet abnormality sensing unit 123 analyzes the abnormality sensing signal received through the abnormality sensing line 114 to determine whether the smart tablet 200 is abnormally operated or not .

The control signal generating unit 124 generates a control signal for controlling the power supply of the smart tablet 200 when the power supply of the smart tablet 200 is turned off and the DC power is supplied, And generates an off control signal for controlling power off of the smart tablet 200 when the power of the smart tablet 200 is turned on. When the power supply of the smart tablet 200 is turned on while the DC power is being supplied and the power supply of the smart tablet 200 is turned on while the power supply of the DC power supply is turned off, Does not generate the ON control signal and the OFF control signal.

On the other hand, when an abnormality detection signal is received through the abnormality sensing line 114, the control signal generator 124 generates a rebooting control signal for turning off the power of the smart tablet 200 and turning it on again, .

Hereinafter, a power control method of a smart tablet according to the present invention will be described. The power control method of the smart tablet according to the present invention is essentially the same as the power control apparatus of the smart tablet according to the present invention, and thus a detailed description and a duplicate description will be omitted.

3 is a flowchart illustrating a power control method of a smart tablet according to the present invention.

First, the DC-DC converter 110 converts the DC power supplied through the vehicle wiring 111 to which the DC power is supplied only after starting the vehicle, and supplies the DC power to the smart tablet 200 (S100).

The power control unit 120 determines whether DC power is supplied through the vehicle wiring 111 (S110). The power control unit 120 determines whether the smart tablet 200 is turned on or off based on a power check signal provided by the smart tablet 200 in step S120.

The power control unit 120 generates a control signal for controlling the power supply of the smart tablet terminal based on the determination result of step S110 and step S120 (S130).

The power control unit 120 generates an on control signal for controlling the power supply of the smart tablet 200 to be turned on when the power of the smart tablet 200 is supplied with DC power and provides the generated control signal to the smart tablet 200 And generates an off control signal for controlling the power supply of the smart tablet 200 to be turned off when the power supply of the smart tablet 200 is turned off and supplies the generated power to the smart tablet 200.

Although not shown in FIG. 3, the method may further include a step of supplying power to the power control unit 120 from a moment when the capacitor 130 is disconnected from the DC power supply for a predetermined time (S140).

The method includes the steps of receiving from the smart tablet 200 an abnormality detection signal indicating whether the power supply controller 120 has an abnormality in the smart tablet 200 and when the power supply controller 120 receives the abnormality detection signal, And then provides the smart tablet 200 with the rebooting control signal.

The method of the present invention can also be embodied as computer readable code on a computer readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission via the Internet) . The computer-readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Accordingly, the scope of protection of the present invention should be construed in accordance with the following claims, and all technical ideas within the scope of equivalents and equivalents thereof should be construed as being covered by the scope of the present invention.

110: DC-DC converter
120:
130: Capacitor
200: Smart Tablet

Claims (10)

A power control apparatus for controlling power on / off for controlling a smart tablet mounted on a vehicle from the outside,
A DC-DC converter connected to a vehicle wiring to which DC power is supplied only after startup of the vehicle, the DC-DC converter converting the voltage of the DC power supplied through the vehicle wiring;
A power supply line connecting the DC-DC converter and the smart tablet to supply power converted by the DC-DC converter to the smart tablet;
And a control unit for generating a control signal for controlling the power supply of the smart tablet to be turned on when the supply of the DC power is started, A power control section for generating an off control signal for controlling the off control signal to be turned off;
A control signal line for transmitting the on control signal and the off control signal to the smart tablet;
A capacitor for supplying power to the power control unit for a predetermined time from the moment when supply of DC power is cut off;
And an abnormality detection line for providing an abnormality detection signal to the power control unit to inform the smart tablet of the abnormality of the smart tablet,
Wherein the power control unit generates a rebooting control signal for turning off the power of the smart tablet when the abnormality detection signal is received via the abnormality sensing line,
Wherein the power control unit generates an off control signal using the power supplied from the capacitor when the supply of the DC power is interrupted, and transmits the off control signal to the smart tablet. The power supply control apparatus according to claim 1,
Further comprising a power check line for providing a power check signal indicating whether the smart tablet is on / off from the smart tablet to the power control unit,
The power control unit generates an on control signal for controlling the power of the smart tablet to be turned on when the smart tablet is turned off and the supply of the direct current power is started and the power supply of the smart tablet is turned on The control unit generates an off control signal for controlling the power supply of the tablet smart terminal to be turned off. delete The smart tablet according to claim 1,
A bus information application for generating bus operation information using a GPS (Global Positioning System) and transmitting the generated bus operation information to an external server is provided as a terminal mounted on the bus, Power supply control device. The power supply apparatus according to claim 1,
Wherein the smart tablet is connected to the smart tablet through a connection interface corresponding to the charging terminal standard of the smart tablet at a portion connected to the smart tablet, Device. 2. The method of claim 1,
Wherein the smart tablet is connected to a place where the power switch of the smart tablet is removed and transmits an on control signal and an off control signal, which are the same signals as those generated when the power switch is pressed, to the smart tablet Smart tablet power control device. delete A power control method for controlling power on / off of a smart tablet for transmitting vehicle driving information, which is mounted on a vehicle, through an apparatus located outside the smart tablet,
(a) converting a DC power supplied from a DC-DC converter through a vehicle wiring to which DC power is supplied only after startup of the vehicle, and supplying the DC power to the smart tablet;
(b) determining whether the power supply control unit is supplied with DC power through the vehicle wiring;
(c) the power control unit determining whether the smart tablet is turned on / off;
(d) The power control unit generates an on control signal for controlling the power supply of the smart tablet to be turned on when the smart tablet is turned off and the supply of the direct current power is started, and supplies the generated power control signal to the smart tablet. Generating an off control signal for controlling power off of the tablet smart terminal when the smart tablet is powered on, and providing the off tablet control signal to the smart tablet;
Receiving from the smart tablet an abnormality detection signal indicating that the smart tablet is abnormal; And
Generating a rebooting control signal for turning the power of the smart tablet off and then turning it on when the abnormality detection signal is received, and providing the rebooting control signal to the smart tablet;
Supplying power to the power control unit for a predetermined time from a moment when the capacitor is cut off from the DC power supply;
And generating and transmitting an off control signal to the smart tablet using the power supplied from the capacitor by the power control unit. delete delete
KR1020140023692A 2014-02-27 2014-02-27 Apparatus and Method of Controlling the Power of Tablet used for Transmitting Vehicle Driving Information KR101545317B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022186503A1 (en) * 2021-03-02 2022-09-09 삼성전자 주식회사 Power supply device and power supply control method of power supply device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804626B1 (en) * 2007-02-27 2008-02-20 유관열 Power supply circuit of navigation device for car

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804626B1 (en) * 2007-02-27 2008-02-20 유관열 Power supply circuit of navigation device for car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022186503A1 (en) * 2021-03-02 2022-09-09 삼성전자 주식회사 Power supply device and power supply control method of power supply device

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