KR101294102B1 - Rechargeable mult communication apparatus and method for controlling the same - Google Patents

Abstract

PURPOSE: A quick chargeable multi communication device and a method controlling the same perform a data communication function as well as a charging function by determining the type and charging availability of a device connected through a USB port. CONSTITUTION: A quick charging unit (200) supplies power for quick charging to an external chargeable device through a port unit (100). A USB host (300) communicates with the device connected through the port unit and requests a switching between a communication mode and a charging mode of the device. Upon the switching request from the USB host, a CPU (400) decides which mode to be selected for the device and determines whether the external device can be charged or not. Controlled by the CPU, a switch unit (500) controls the access of the port unit to the quick charging unit and the USB host. [Reference numerals] (100) Port unit; (200) Quick charging unit; (300) USB host; (310) External communication unit; (320) Transfer unit; (330) Function implementation unit; (340) Host determination unit; (400) CPU; (410) Judge unit; (420) Control unit; (500) Switch unit; (510) First switch; (520) Second switch; (AA) Power supply; (BB) Charging/communication modes; (CC) Communication mode request

Description

Quickly charge multi-communication device and its control method {RECHARGEABLE MULT COMMUNICATION APPARATUS AND METHOD FOR CONTROLLING THE SAME}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-communication device capable of fast charging and a control method thereof, and to a multi-communication device having a quick charge function capable of fast charging by judging a connected device as well as data communication and a control method thereof.

Recently, in addition to an electronic device including a USB terminal, a multi terminal for connecting a USB terminal is basically provided for data communication such as vehicle diagnosis as well as music reproduction in a vehicle. Through this, various functions are performed by being connected to the control devices inside the device by wire.

However, such a communication terminal has a disadvantage in that there is no separate charging function or only a slow charging function.

Furthermore, the existing portable terminal requires a battery to use it, and in order to use such a battery, the battery must be charged. However, in order to charge such a portable terminal in a vehicle, it is necessary to use a dedicated device that uses a cigar jack. do.

SUMMARY OF THE INVENTION An object of the present invention is to provide a multi-communication device capable of fast charging capable of fast charging as well as data communication by determining whether a device can be charged as well as a type of a device connected to a USB terminal, and a control method thereof.

The present invention provides a multi-communication device having a quick charging and communication function for a connected external device, comprising: a terminal unit to which an external device is connected, a quick charging unit for providing charging power for rapid charging through a terminal unit to a rechargeable external device; And a USB host performing communication with an external device connected to the terminal unit and requesting communication or charging function switching with respect to the external device, and communication or charging with respect to the external device according to the communication or charging switching request of the USB host. And a switch unit controlled by the central processor and controlling the connection of the terminal unit to the quick charging unit and the USB host. Provide a device.

A USB terminal may be used as the terminal unit, and the quick charging unit may include a voltage generation module configured to set a fast charging condition according to a type of external device connected to the terminal unit.

The USB host may include an external communication unit in charge of communicating with an external device, a switching unit outputting a switching request signal for determining communication status of the external device and maintaining or charging the communication, and a connected external device. And a determining unit configured to determine whether to charge the connected external device.

The host determiner determines whether the external device connected to the terminal unit is a chargeable device or a non-charged device, and reads the information of the external device through USB communication with the external device to determine the type of the external device and charges the device. In order to determine whether the external device can be charged or not, the list of chargeable devices is stored in the determination unit and characterized in that the database.

The switching unit may continuously communicate through a communication request signal when the USB host and the external device are in communication, and generate a charge request signal when the communication is not in progress.

The central processing unit may include a determination unit determining a charge possibility of the connected external device, and a control unit controlling the operation of the switch unit and the operation of the quick charging unit according to a switching request signal.

The determining unit determines whether the connected external device is a chargeable device or a non-charging device through the charging current amount of the external device, and the control unit outputs a signal for controlling the operation of the switch unit according to the communication request signal and the charge request signal. And a charging control unit for outputting a signal for controlling an operation of the quick charging unit.

The switch unit may include a first switch connecting the terminal unit and the quick charging unit, and a second switch connecting the terminal unit and the USB host.

In addition, in the method of controlling a multi-communication device having a quick charging and communication function for an external device connected to a terminal according to the present invention, the step of communicating with an external device via a USB host, and the connected external device Determining whether the device is a chargeable device, maintaining a communication mode when the device is not chargeable, and maintaining a communication mode when the device is a chargeable device; The present invention provides a control method of a quick charging multi-communication device, comprising: switching to a charging mode for rapid charging according to a charging switching request.

The method may further include determining whether the external device is charged by determining an amount of charging charging current for the external device after switching to the charging mode.

Further, in a method of controlling a multi-communication device having a quick charging and communication function for an external device connected to a terminal according to the present invention, the method of communicating with an external device via a USB host, and a fast for the external device Determining whether or not the charging switch request input authorization is performed, and if the charging switch request is authorized, determining whether the connected external device is a chargeable device, and if the device is not chargeable, the communication mode The control method of the multi-chargeable multi-communication device comprising the steps of switching to a charging mode for fast charging after the completion of the function in the case of a chargeable device as a result of the determination.

In the communication mode state, the host determining unit of the USB host determines whether the device can be charged by USB communication. In the charging mode state, the charging unit and the reference current amount of the external device and It is characterized by determining the presence or absence of the charge through the comparison.

In the communication mode state, the USB host is switched to the charging mode when the device recognition by the USB communication, characterized in that the judging unit of the central processing unit determines whether the charge possible.

In this way, the present invention can determine not only the type of the device connected to the USB terminal, but also whether the battery can be charged, thereby enabling rapid charging as well as data communication. In addition, by switching the charging and communication to a separate switch, the user can control the charging and communication for the portable terminal device as needed.

1 is a block diagram of a fast charging multi-communication device according to an embodiment of the present invention.
2 is a block diagram of a fast charging multi-communication device according to a variation of one embodiment.
3 is a flowchart illustrating a control method of a multi-communication device capable of fast charging according to an embodiment of the present invention.
4 is a block diagram of a multi-communication device capable of fast charging according to another embodiment of the present invention.
5 is a flowchart illustrating a control method of a multi-communication device capable of fast charging according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. Wherein like reference numerals refer to like elements throughout.

It is to be clarified that the division of components in this specification is merely a division by main function which each component is responsible for. That is, two or more constituent parts to be described below may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided. Each of the components to be described below may additionally perform some or all of the functions of other components in addition to the main functions of the components, and some of the main functions of each of the components are different. Of course, it may be carried out exclusively by. Therefore, the presence or absence of each component described through this specification should be interpreted functionally, and for this reason, the configuration of the multi-communication device components capable of rapid charging of the present invention is within the limits to achieve the object of the present invention. Make it clear what can be different.

The fast charging multi-communication device of the present invention can be applied to various electronic products using a USB terminal, and is also used in general home appliances such as audio equipment and AVN, DVD (BD) players, home theaters, laptops, TVs, monitors, etc. This is possible. Hereinafter, a description will be made of the USB terminal installed in the vehicle, but the scope of the present invention is not limited thereto.

1 is a block diagram of a fast charging multi-communication device according to an embodiment of the present invention.

As shown in FIG. 1, the multi-communication device capable of quick charging according to the present embodiment provides a terminal unit 100 to which an external device is connected and charging power for rapid charging through the terminal unit 100 to a rechargeable external device. A USB host 300 for performing a task according to communication with the quick charging unit 200, an external device connected to the terminal unit 100, and requesting communication or charging of an external device to the external device, and the USB The central processing unit 400 controls the communication or charging of the external device according to the communication or charge switching request of the host 300, and determines whether or not the external device can be charged, and is controlled by the central processing unit 400 to rapidly perform the control. And a switch unit 500 for controlling the connection of the terminal unit 100 to the charging unit 200 and the USB host 300.

The terminal unit 100 is a terminal to which a portable external device can be connected. In this embodiment, it is preferable to use a USB terminal. Of course, the present invention is not limited thereto, and various terminals having a communication function and a charging function with an external device may be used.

The quick charging unit 200 sets the quick charging condition according to the type of the external device connected to the terminal unit 100, and proceeds with rapid charging. Although not shown, the quick charge unit 200 includes various voltage generation modules for generating a power supply voltage and generating a fast charge voltage / current corresponding to each device. In this case, the quick charging unit 200 generates and provides a quick charging voltage / current according to a control signal of the central processing unit 400.

The USB host 300 is an external communication unit 310 in charge of communication with the external device, and the switching unit 320 for outputting a switch request signal for determining the communication state of the external device to maintain communication or to proceed with charging And a function performing unit 330 for performing various corresponding functions such as music reproduction, image reproduction, vehicle control, vehicle management, vehicle inspection, etc. through communication with the connected external device, and externally connected through communication with an external device. It includes a host determination unit 340 for determining the charge possibility of the device. Although not shown, the USB host 300 may include various modules and devices for performing a function, and it is effective that communication used inside the vehicle is used for communication between these modules and devices.

The external communication unit 310 performs USB communication with the connected external device.

The switching unit 320 may output a communication request signal and a charge request signal, and two corresponding signals may be selectively output according to the connected device. For example, when the connected device is a non-chargeable device, only a communication request signal is output, and the USB host 300 may allow continuous communication to be performed between external devices. In addition, when the connected device is a non-communicable device, only the charge request signal may be output to rapidly charge the external device. In addition, when the connected external device is a device capable of both communication and charging, the communication request signal and the charge request signal may be transmitted according to circumstances so that smooth communication and charging of the corresponding device may be performed.

When the USB host 300 and the external device are in the process of USB communication, the USB host 300 can continuously communicate with the communication request signal, and when the USB communication is not in progress, generates the charge request signal. To this end, the switching unit 320 transmits a communication request signal when the external device is initially connected. Thereafter, the communication request signal is output only when communication is performed through the external communication unit 310, and when the communication is not performed, the charge request signal is output. If charging is performed by the charge request signal, when USB communication with the external device is required in the USB host 300, the communication request signal may be generated again to allow smooth communication.

The host determination unit 340 determines whether the external device connected to the terminal unit 100 is a chargeable device or a device that is not charged. At this time, the host determination unit 340 reads the information of the external device through the USB communication with the external device to determine the type of the external device, and determines whether it can be charged. The host determiner 340 may store and database a list of the chargeable devices in the determiner to determine whether the external device can be charged.

The central processing unit 400 controls the operation of the switch unit 500 and the operation of the quick charging unit 200 according to the determination unit 410 that determines the possibility of charging of the connected external device, and the switch request signal of the AVN 300. It includes a control unit 420.

The determination unit 410 determines whether the external device connected to the terminal unit 100 is a chargeable device or a device that is not charged. At this time, the determination unit 410 checks the current amount of the external device and determines that the device is chargeable when it is larger than the reference current amount, and determines that the device is non-chargeable when it is equal to or lower than the reference current. For example, if the reference current amount is set to 100 mA, it is determined that the device can be charged if it is 100 mA or more.

At this time, if it is determined that the external device is a non-chargeable device, it is switched to the communication mode.

At this time, the determination unit 410 includes a module that can determine the current applied to the external device, and includes a storage unit in which the reference current amount value is stored. In the present embodiment, a separate host determination unit 340 is provided in the USB host 300, and an additional determination unit 410 is further provided in the central processing unit 400. In the charging mode state, the switch unit 500 is switched to the quick charging unit 200 and is in a state of being turned off from the USB host 300. Therefore, the host determination unit cannot be used. That is, when the USB memory is connected in the charging mode, the central processing unit of the multi terminal determines and switches to the communication mode so that the USB host can recognize the communication.

The control unit 420 outputs a signal for controlling the operation of the switch unit 500 according to the communication request signal and the charge request signal of the AVN 300, and outputs a signal for controlling the operation of the quick charging unit. A charging control unit is provided. Through this, it is possible to control the operation of the switch unit and the quick charging unit.

The switch unit 500 includes a first switch 510 connecting the terminal unit 100 and the quick charging unit 200, and a second switch 520 connecting the terminal unit 100 and the USB host 300. The first switch 510 and the second switch 520 interoperate with each other. That is, when the first switch 510 is turned on, the second switch 520 is turned off, and when the second switch 520 is turned on, the first switch 510 is turned off. Of course, the present invention is not limited thereto, and a relay switch may be used as the switch unit.

Through this, the multi-communication device capable of fast charging according to the present embodiment can determine whether or not the external device connected to the terminal for charging can be charged, and can rapidly charge the external device while switching communication and charging. Communication can be performed.

2 is a block diagram of a fast charging multi-communication device according to a variation of an embodiment.

As shown in FIG. 2, the communication between the USB host 300 and the central processing unit 400 may be unidirectional.

That is, in the above embodiment, the USB host 300 and the central processing unit 400 have been described mainly for bidirectional communication. However, according to the device, only one-way communication with the USB host 300 may be performed as shown in FIG. 2.

When a device that is not charged in the terminal unit 100 in the charging mode is mounted, the central processing unit 400 turns on the second switch 520 regardless of the charging mode request signal from the USB host 300 to externally. Allow communication between the device and the USB host 300. At this time, the host determination unit 340 in the USB host 300 sends a communication mode request signal to the central processing unit 400 after checking whether the external device can not be charged through USB communication.

The following describes a control method of the multi-communication device capable of fast charging according to the present embodiment.

3 is a flowchart illustrating a control method of a multi-communication device capable of fast charging according to an embodiment of the present invention.

First, an external device is mounted on the terminal unit (S110). The central processing unit switches the switch unit 500 according to the charge / communication mode request state from the USB host 300.

When in the communication mode state, the USB host determines whether the external device is a chargeable device through communication with the external device (S120). The determination may be made by communicating with an external device through USB communication to recognize the USB device. The USB host may recognize an external device through an installed driver.

If it is determined that the device is not capable of charging, it maintains a communication mode state in which direct communication with the USB host is performed (S140). To maintain the communication mode state, the switch unit maintains the state in which the terminal unit and the USB host are directly connected.

As a result of the determination, in the case of the rechargeable device, when the function is terminated (S150), the USB host sends a charging mode switching signal to the central processing unit to switch to the charging mode for rapid charging (S160).

In addition, when the fast charging is performed in the charging mode state and receives a communication request from the USB host, the communication function is switched to communication (S170).

That is, the USB host transmits a communication switching signal, that is, a communication request signal to the central processing unit. Accordingly, the central processing unit may stop the operation currently being charged and allow the terminal unit and the USB host to be directly connected to allow the external device and the USB host to communicate (S120). Of course, after the communication function is completed, the quick charge may be resumed by outputting a charge switching signal directly from the USB host (S180).

If rapid charging is performed at the request of the USB host, the central processing unit may determine whether the current external device can be charged before rapid charging (S181). At this time, the determination result is that charging is performed when the device is capable of charging (S182), and when it is impossible to charge, the charging may be switched to proceed with communication instead of proceeding with charging. In addition, the central processing unit may also check whether the charging of the current device is completed, and determine whether the charging is continued according to the result. If charging of the external device is completed, the central processing unit stops the operation of the quick charging unit. Through this, even if an internal charge switching signal is generated, it is possible to prevent a separate rapid charging from being performed.

In the above description, the USB host generates a charge and communication request signal according to its own determination, and accordingly, the device determines whether to perform a communication function or a charge function. However, the present invention is not limited thereto and may proceed through various external inputs.

Hereinafter, a description will be given of switching communication and charging functions through separate switch. Descriptions overlapping with the above-described embodiments will be omitted.

4 is a block diagram of a multi-communication device capable of fast charging according to another embodiment of the present invention.

As illustrated in FIG. 4, the quick charging multi-communication device according to the present exemplary embodiment provides a terminal unit 100 to which an external device is connected, and charging power for rapid charging through the terminal unit 100 to a rechargeable external device. A quick charging unit 200, a USB host 300 for communicating with an external device connected to the terminal unit 100, a switching switch 600 for requesting switching of charging and communication functions for the external device, and By the central processing unit 400 and the central processing unit 400 to control the communication or charging of the external device according to the communication or charge switching request of the switch switch 600, and determine whether the external device can be charged; And a switch unit 500 that is controlled to control the connection of the terminal unit 100 to the quick charging unit 200 and the USB host 300.

In the present embodiment, the user has a switching switch 600 that can directly control the charging and communication functions for the external device.

The changeover switch 600 generates a charge request signal and a communication request signal according to a user's operation and provides the converted request signal to the central processing unit 400. Through this, communication between the external device and the USB host 300 may be performed, or rapid charging of the external device through the quick charging unit 200 may be performed.

The changeover switch 600 may use various types of switches for generating at least two signals according to a user's manipulation. Of course, in the present embodiment, it is preferable that the changeover switch 600 always generates a communication request signal when there is no separate operation by the user.

In addition, the changeover switch 600 has a separate block function, and when the external device currently connected in the central processing unit 400 is recognized as a non-chargeable device, only the communication request signal is generated even if the user operates the changeover switch 600. You can do that.

Hereinafter, a control method of a multi-communication device capable of fast charging according to another embodiment of the present invention described above will be described.

5 is a flowchart illustrating a control method of a multi-communication device capable of fast charging according to another embodiment of the present invention.

First, an external device is connected (mounted) to the terminal unit (S210). This confirms the position of the switching switch (S220). Communication and charging can be switched according to the position of the switch.

Next, it is determined whether the current state corresponds to the charging mode (S230). If the determination result is not in the charging mode state, the operation for communication switching is performed (S240). However, when the determination result is the charging mode state, the operation for charging switching is performed (S250).

Thereafter, it is determined whether the connected external device is a chargeable device (S260). If the device can be charged fast charging (S270). However, in the case of the non-chargeable device, an operation for communication switching is performed (S240).

In this case, when rapid charging or communication is in progress, it may be displayed externally through a separate display device, for example, an LED lamp. In this case, it is preferable to change the displayed color to recognize the charging and the communication mode separately.

Subsequently, when the switch is operated by the user to generate a communication request signal, the switching operation may be performed by transmitting the signal to the central processing unit. That is, when the multi-terminal performs rapid charging in the charging mode state and receives a communication request from the switching switch unit 600, the terminal may switch to the communication and immediately perform the communication in the communication mode state.

The control method of the multi-communication device is not limited to the above description, and the central processing unit first determines whether the external device can be charged at the moment when the external device is connected, and then enables the operation of the changeover switch only when the device is rechargeable. Can be. Through this, only the communication is possible for the non-chargeable device, and in the case of the chargeable device, communication or charging can be alternately performed according to the user's switching request.

Of course, the control method according to the present embodiment is not limited to the above description, and the operation according to the combination of the above-described embodiment and the present embodiment is possible. In other words, when there is no user's operation, the USB host determines the communication or charging automatically, and when the user's switch operation occurs, priority is given to the operation of the switch so that communication or charging can be performed. .

In addition, in the case of the present invention, the determination unit of the USB host in the communication mode state determines whether or not the charge possible through the device recognition by the USB communication. However, in the charging mode state, the determination unit of the central processing unit determines whether charging is possible by comparing the charging current amount of the external device with the reference current amount. Also, in the communication mode state, when the USB host fails to recognize the device by the USB communication, the central processor may determine whether charging is possible after switching to the charging mode.

Although the technical spirit of the present invention described above has been described in detail in a preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention.

100: terminal
200: quick charging unit
300: USB host
400: central processing unit
500: switch unit
600: changeover switch

Claims (14)

A multi-communication device having a quick charging and communication function for a connected external device,
A terminal unit to which an external device is connected;
A quick charging unit configured to provide charging power for rapid charging through a terminal unit to a rechargeable external device;
A USB host for performing communication with an external device connected to the terminal and requesting switching of a communication or charging function for the external device;
A central processing unit controlling communication or charging of an external device according to a communication or charge switching request of the USB host, and determining whether the external device is capable of charging; And
A control unit controlled by the central processing unit to control a connection of the terminal unit to the quick charging unit and the USB host;
The USB host may include an external communication unit in charge of communicating with an external device, a switching unit outputting a switching request signal for determining communication status of the external device and maintaining or charging the communication, and a connected external device. And a host determiner configured to determine whether the connected external device is charged or not.
A multi-communication device having a quick charging and communication function for a connected external device,
A terminal unit to which an external device is connected;
A quick charging unit configured to provide charging power for rapid charging through a terminal unit to a rechargeable external device;
A USB host for communicating with an external device connected to the terminal unit;
A switch for requesting switching of charging and communication functions for an external device;
A central processing unit controlling communication or charging of an external device according to a communication or charge switching request of the switching switch, and determining whether the external device can be charged; And
And a switch unit controlled by the central processing unit to control the connection of the terminal unit to the quick charging unit and the USB host.
The method according to claim 1 or 2,
A USB terminal is used as the terminal unit, and the quick charging unit includes a voltage generating module for setting a fast charging condition according to a type of external device connected to the terminal unit.
delete The method of claim 1,
The switching unit enables the USB host and the external device to continuously communicate through a communication request signal when the communication is in progress, and generates a charge request signal when the communication is not in progress. Device.
The method of claim 1,
The host determiner determines whether the external device connected to the terminal unit is a chargeable device or a non-charged device, and reads the information of the external device through USB communication with the external device to determine the type of the external device and charges the device. And determining whether the external device is chargeable, and storing a list of the chargeable devices in the determination unit and making a database.
The method according to claim 1 or 2,
The central processing unit includes a determination unit for determining the possibility of charging of the connected external device, and a control unit for controlling the operation of the switch unit and the operation of the quick charging unit according to the switch request signal.
The method of claim 7, wherein
The determination unit determines whether the connected external device is a chargeable device or a non-charged device through the charging current amount of the external device,
The control unit includes a switch control unit for outputting a signal for controlling the operation of the switch unit according to the communication request signal and the charge request signal, and a charging control unit for outputting a signal for controlling the operation of the quick charging unit, characterized in that the quick charge Multi communication device available.
The method according to claim 1 or 2,
And the switch unit comprises a first switch connecting the terminal unit and the quick charging unit, and a second switch connecting the terminal unit and the USB host. A control method of a multi-communication device having a quick charging and communication function for an external device connected to a terminal,
Communicating with an external device via a USB host;
Determining whether the connected external device is a chargeable device;
Maintaining a communication mode in the case of a non-chargeable device and maintaining a communication mode in the case of a chargeable device, requesting switching of the charging mode when the function of charging is completed;
And switching to a charging mode for rapid charging in response to a charging switching request. The method of claim 10,
And after the step of switching to the charging mode, determining whether the external device is charged by determining the amount of charging current to the external device. A control method of a multi-communication device having a quick charging and communication function for an external device connected to a terminal,
Communicating with an external device via a USB host;
Determining whether or not a charge switching request input is authorized to perform rapid charging of the external device;
Determining whether the connected external device is a chargeable device when the charge switching request is authorized;
Maintaining the communication mode when the device is incapable of charging as a result of the determination of the charging possibility; and switching to a charging mode for rapid charging after performing the function in the case of the device capable of charging; Control method. 13. The method according to claim 10 or 12,
In the communication mode state, the host determining unit of the USB host determines whether the device can be charged by USB communication. In the charging mode state, the charging unit and the reference current amount of the external device and The control method of the multi-chargeable multi-communication device characterized in that it is determined by the comparison of the chargeable. The method of claim 13,
The control method of the multi-chargeable multi-communication device, characterized in that the USB host determines whether the charging is possible in the determination unit of the central processing unit after switching to the charging mode when the device recognition by the USB communication failure.

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