Device and method for personal information management for electric vehicle

Abstract

The present invention provides a personal information management device and method for protecting personal information stored in a controller of an electric vehicle. According to the present invention, the personal information management device implemented to be integrated with the controller for storing personal information and providing a service by interworking with an external service provision device is configured to receive power supplied from each of a high-voltage battery and a low-voltage battery of an electric vehicle. When power is supplied from at least one of the high-voltage battery and the low-voltage battery, a control unit of the personal information management device continuously receives a voltage signal at a constant state. When the personal information management device is detached and power supply from both the high-voltage battery and the low-voltage battery is cut off, the control unit receives a voltage signal in a state opposite to the previous state. The control unit of the personal information management device may detect a change in the state of the voltage signal to determine whether the personal information management device is detached from an electric vehicle in which the personal information management device was originally installed, and is installed in another electric vehicle, and may block personal information from being provided by deactivating a function of providing personal information stored therein when it is determined that the personal information management device is unauthorizedly detached and reinstalled, thereby preventing illegal misuse of personal information.

Description

Personal information management device and method for electric vehicles

[0001] The present invention relates to a personal information management device and method, and more particularly, to a personal information management device and method that can be used for various services performed in an electric vehicle.

[0002] With recent advancements in information and communication technology, various electronic services are being introduced into automobiles. This trend is further accelerated by the proliferation of electric vehicles. Representative examples of these services include Feature on Demand (FoD) and Plug and Charge (PnC).

[0003] FoD is an optional subscription service that allows the purchase of optional vehicle features using wireless communication technology. With FoD, both the vehicle's hardware and software are implemented during mass production, but some features are selectively activated and others deactivated. After the vehicle is released, if a feature purchase event occurs, the purchased feature is activated. However, to activate or deactivate a purchased feature, a FoD certificate containing the vehicle owner's personal information must be stored in the target controller in advance.

[0004] Meanwhile, PnC (Personalized to Charge) is a service designed to improve the convenience of charging electric vehicles. It processes authentication and billing when connecting an electric vehicle to a charger without any user intervention. However, to utilize the PnC service, a contract certificate containing payment information must be stored within the PnC controller installed in the vehicle.

[0005] What these services have in common is that, in order to perform their functions normally, the customer's personal information (payment method, card information, contract information, certificates, etc.) must be stored within the controller providing the service.

[0006] However, if the controller itself, which stores personal information installed in an electric vehicle, is stolen or installed in another vehicle, the personal information stored within the controller can be accessed as is. This means that if a third party steals the controller, installs it in another vehicle, and maliciously uses paid services, such as electric vehicle charging, the cost of those services will be charged based on the personal information stored in the controller, potentially resulting in the original owner of the stolen controller being charged.

[0007] The problem to be solved by the present invention is to provide a personal information management device and method for an electric vehicle, which can detect when a controller installed in an electric vehicle and storing personal information is illegally stolen and then installed in another electric vehicle, thereby blocking the use of personal information, thereby ultimately preventing the provision of services and illegal charging.

[0008] According to a preferred embodiment of the present invention for solving the above-described problem, a personal information management device for an electric vehicle includes a power supply unit that receives a first power (Vcc1) input from one of a high-voltage battery and a low-voltage battery of the electric vehicle and a second power (Vcc2) input from the other, and outputs power to a detachment detection unit and a control unit, respectively; the detachment detection unit that detects whether the personal information management device is detached using the power input from the power supply unit; and the control unit that stores personal information in an internal memory, is driven by the power input from the power supply unit, examines a voltage signal input from the detachment detection unit to determine whether the personal information management device is detached, and deactivates a function of providing personal information stored in the memory when it is determined that the personal information management device is detached.

[0009] In addition, the control unit can determine that the personal information management device has been detached when the state of the voltage signal input from the detachment detection unit changes.

[0010] In addition, the control unit can determine that the personal information management device has been detached when the voltage signal input from the detachment detection unit changes from a low state to a high state.

[0011] In addition, when at least one of the first power (Vcc1) and the second power (Vcc2) is input, the power supply unit continuously outputs power to the detachment detection unit and the control unit, respectively, and when power is continuously input from the power supply unit, the detachment detection unit can output a voltage signal in a constant state to the control unit, and when power is not supplied from the power supply unit, the voltage signal in a state different from the constant state can be output to the control unit.

[0012] In addition, the power supply unit includes a first switch implemented with an NPN bipolar transistor; a second switch implemented with a PNP bipolar transistor; a first diode having a cathode connected to a collector of the first switch; a second diode having a cathode connected to a collector of the second switch; a first resistor connected between the collector of the first switch and a first power source; and a second resistor connected between the collector of the second switch and a second power source; wherein the second power source is input to bases of the first switch and the second switch, and cathodes of the first diode and the second diode can be commonly connected to an input node of the detachment detection unit.

[0013] In addition, the power supply unit includes a first switch implemented with an N-type FET (Field Effect Transistor); a second switch implemented with a P-type FET (Field Effect Transistor); a first diode having a cathode connected to a drain of the first switch; a second diode having a cathode connected to a drain of the second switch; a first resistor connected between a drain of the first switch and a first power source; and a second resistor connected between a drain of the second switch and a second power source; wherein the second power source is input to gates of the first switch and the second switch, and cathodes of the first diode and the second diode can be commonly connected to an input node of the detachment detection unit.

[0014] In addition, the detachment detection unit may include a third resistor connected between an input node of the detachment detection unit to which power is input from the power supply unit and a power monitoring terminal of the control unit; and a capacitor connected between the power monitoring terminal of the control unit and ground to output a voltage signal to the power monitoring terminal.

[0015] In addition, the control unit is driven by receiving a driving voltage from the power supply unit to the driving power terminal through a fourth resistor connected to the input node of the detachment detection unit, and when the driving voltage is input, examines a voltage signal input to the power monitoring terminal, and when the voltage signal changes from a low state to a high state, determines that the personal information management device has been detached, and can disable the provision function of personal information stored in the memory.

[0016] In addition, the detachment detection unit may include a third resistor connected between an input node of the detachment detection unit to which power is input from the power supply unit and a third switch; a capacitor having one end connected between the third resistor and the third switch and the other end grounded; and the third switch that is turned on / off according to a voltage charged in the capacitor, outputs a high-state voltage signal to the power monitoring terminal in an on state, and outputs a low-state voltage signal to the power monitoring terminal in an off state.

[0017] In addition, the personal information management device of an electric vehicle according to a preferred embodiment of the present invention further includes a communication unit that performs communication with a customer terminal to which personal information belongs through a mobile communication network, and when the control unit determines that the personal information management device has been removed, it can notify the customer terminal of the removal of the personal information management device through the communication unit.

[0018] Meanwhile, a personal information management method of an electric vehicle according to a preferred embodiment of the present invention for solving the above-described problem comprises: a power supply unit that receives a first power (Vcc1) input from one of a high-voltage battery and a low-voltage battery of the electric vehicle and a second power (Vcc2) input from the other, and outputs power to a detachment detection unit and a control unit, respectively; the detachment detection unit that detects whether a personal information management device is detached using the power input from the power supply unit; and the control unit that stores personal information in an internal memory, is driven by the power input from the power supply unit, examines a voltage signal input from the detachment detection unit to determine whether the personal information management device is detached, and deactivates a function of providing personal information stored in the memory when it is determined that the personal information management device is detached; a personal information management method performed in a personal information management device, comprising: (a) a step of driving the personal information management device when the first power (Vcc1) and the second power (Vcc2) are input; (b) a step of checking whether personal information is stored, and if personal information is stored, monitoring a voltage signal input from the detachment detection unit; and (c) a step of determining that the personal information management device has been detached when the state of the monitored voltage signal changes, and disabling the function of providing the stored personal information.

[0019] In addition, the step (c) above can determine that the personal information management device has been detached when a voltage signal input from the detachment detection unit to the control unit changes from a low state to a high state.

[0020] In addition, the power supply unit continuously outputs power to the detachment detection unit and the control unit when at least one of the first power (Vcc1) and the second power (Vcc2) is input, and the detachment detection unit can output a voltage signal in a constant state to the control unit when power is continuously input from the power supply unit, and can output a voltage signal in a state different from the constant state to the control unit when power is not supplied from the power supply unit.

[0021] In addition, the power supply unit includes a first switch implemented with an NPN bipolar transistor; a second switch implemented with a PNP bipolar transistor; a first diode having a cathode connected to a collector of the first switch; a second diode having a cathode connected to a collector of the second switch; a first resistor connected between the collector of the first switch and a first power source; and a second resistor connected between the collector of the second switch and a second power source; wherein the second power source is input to bases of the first switch and the second switch, and cathodes of the first diode and the second diode can be commonly connected to an input node of the detachment detection unit.

[0022] In addition, the power supply unit includes a first switch implemented with an N-type FET (Field Effect Transistor); a second switch implemented with a P-type FET (Field Effect Transistor); a first diode having a cathode connected to a drain of the first switch; a second diode having a cathode connected to a drain of the second switch; a first resistor connected between a drain of the first switch and a first power source; and a second resistor connected between a drain of the second switch and a second power source; wherein the second power source is input to gates of the first switch and the second switch, and cathodes of the first diode and the second diode can be commonly connected to an input node of the detachment detection unit.

[0023] In addition, the detachment detection unit may include a third resistor connected between the input node of the detachment detection unit, to which power is input from the power supply unit, and the power monitoring terminal of the control unit; and a capacitor connected between the power monitoring terminal of the control unit and ground, and outputting a voltage signal to the power monitoring terminal.

[0024] In addition, the control unit is driven by receiving a driving voltage from the power supply unit to the driving power terminal through a fourth resistor connected to the input node of the detachment detection unit, and when the driving voltage is input, examines a voltage signal input to the power monitoring terminal, and when the voltage signal changes from a low state to a high state, determines that the personal information management device has been detached, and can disable the provision function of personal information stored in the memory.

[0025] In addition, the detachment detection unit may include a third resistor connected between an input node of the detachment detection unit to which power is input from the power supply unit and a third switch; a capacitor having one end connected between the third resistor and the third switch and the other end grounded; and the third switch that is turned on / off according to a voltage charged in the capacitor, outputs a high-state voltage signal to the power monitoring terminal in an on state, and outputs a low-state voltage signal to the power monitoring terminal in an off state.

[0026] The present invention provides a personal information management device that is implemented by integrating with a controller that stores personal information and provides services in conjunction with an external service providing device, and receives power from a high-voltage battery and a low-voltage battery of an electric vehicle, respectively.

[0027] When power is supplied from at least one of the high-voltage battery and the low-voltage battery, the control unit of the personal information management device continuously receives a voltage signal in a constant state, and when the personal information management device is detached and power supply from both the high-voltage battery and the low-voltage battery is cut off, the control unit receives a voltage signal in a state opposite to that previously received.

[0028] The control unit of the personal information management device can detect a change in the state of a voltage signal to determine whether the personal information management device has been removed from the electric vehicle in which it was originally installed and installed in another electric vehicle, and if it is determined that the personal information management device has been removed and reinstalled without authorization, the function of providing personal information stored within the device can be disabled to block the provision of personal information, thereby preventing illegal misuse of personal information.

[0029] FIG. 1 is a drawing showing the overall configuration of a personal information management device for an electric vehicle according to a preferred embodiment of the present invention.

[0030] FIG. 2 is a circuit diagram illustrating a detailed configuration of a personal information management device for an electric vehicle according to a preferred embodiment of the present invention.

[0031] Figure 3 is a flowchart illustrating a personal information management method according to a preferred embodiment of the present invention.

[0032] FIG. 4 is a circuit diagram illustrating a detailed configuration of a personal information management device for an electric vehicle according to another preferred embodiment of the present invention.

[0033] FIG. 5 is a circuit diagram illustrating a detailed configuration of a personal information management device for an electric vehicle according to another preferred embodiment of the present invention.

[0034] Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

[0035] Here, the above-described objects, features, and advantages of the present invention will become more apparent through the following detailed description related to the attached drawings. However, since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail below.

[0036] Throughout the specification, the same reference numbers, in principle, indicate the same components. In addition, components with the same function within the scope of the same concept shown in the drawings of each embodiment are described using the same reference numbers.

[0037] When a part of the specification is said to "include" a component, this does not exclude other components, but rather implies the inclusion of other components, unless otherwise specifically stated. Furthermore, terms such as "part," "module," etc., used throughout the specification refer to a unit that processes at least one function or operation, which may be implemented in hardware, software, or a combination of hardware and software.

[0038] If a detailed description of a known function or configuration related to the present invention is deemed to unnecessarily obscure the gist of the present invention, such detailed description will be omitted. Furthermore, numbers (e.g., "first," "second," etc.) used throughout the description of this specification are merely identifiers used to distinguish one component from another.

[0039]

[0040] FIG. 1 is a drawing showing the overall configuration of a personal information management device for an electric vehicle according to a preferred embodiment of the present invention.

[0041] Referring to FIG. 1, a personal information management device for an electric vehicle according to a preferred embodiment of the present invention (hereinafter, abbreviated as "personal information management device") receives a first power supply (Vcc1) and a second power supply (Vcc2) from a high-voltage battery and a low-voltage battery installed inside the electric vehicle. In a preferred embodiment of the present invention, the personal information management device can be operated by receiving two independent power supplies, and it is not essential to distinguish between the power supplied from the high-voltage battery and the power supplied from the low-voltage battery. Accordingly, the power supplied from the high-voltage battery may be the first power supply or the second power supply, and the power supplied from the low-voltage battery may be the first power supply or the second power supply.

[0042] In FIG. 1, for convenience of explanation, battery 1 (210) is illustrated as a high-voltage battery supplying a first power source (Vcc1), and battery 2 (220) is illustrated as a low-voltage battery supplying a second power source (Vcc2), but the reverse case is also possible.

[0043] The personal information management device (100) is basically implemented as an integral part of a service controller that provides services (e.g., PnC service, FoD service, etc.) that store and use personal information within the controller, and performs the personal information protection function described below, and at the same time, provides services that use personal information, such as PnC service and FoD service, by linking with an external service providing device (400).

[0044] External service providing devices (400) are devices that provide services using personal information by linking with controllers inside a vehicle, and may be, for example, a charging station of an external battery charging station that provides a PnC function.

[0045] However, the present invention can be implemented by integrating it into all service controllers that perform personal information protection and management functions, and the content of the present invention relates to personal information protection and management functions and is not limited to services that utilize specific personal information. Therefore, below, descriptions related to individual service provision functions are omitted, and only functions related to personal information protection and management are described.

[0046] The personal information management device (100) provides a service by linking with an external service providing device (400), and at the same time, continuously checks whether the personal information management device (100) has been removed and reinstalled, i.e., whether the personal information management device (100) storing personal information has been removed from the electric vehicle in which it was originally installed and then installed in another electric vehicle without permission.

[0047] If the personal information management device (100) of the present invention determines that it has been removed from the electric vehicle in which it was originally installed and installed in a different electric vehicle, it disables the function that provides personal information stored within it to an external service provider (400), thereby preventing personal information from being leaked to the outside. In addition, if the personal information management device (100) determines that it has been removed and then reinstalled, it notifies the customer terminal (300) of the fact that the personal information management device (100) has been removed.

[0048] The personal information management device (100) is configured to include a power supply unit (110), a detachment detection unit (120), a control unit (130), and a communication unit (140).

[0049] The power supply unit (110) continuously supplies power to the detachment detection unit (120) after the personal information management device (100) is first installed in the electric vehicle. As described above, the power supply unit (110) receives Vcc1 and Vcc2 to supply power to the detachment detection unit (120), and supplies the same power as the power input to the detachment detection unit (120) to the control unit (130) to drive the control unit (130).

[0050] When at least one of Vcc1 and Vcc2 is input from battery 1 (210) and battery 2 (220), which are implemented as high-voltage and low-voltage batteries of an electric vehicle, the power supply unit (110) provides the corresponding power to the detachment detection unit (120).

[0051] The detachment detection unit (120) outputs a voltage signal of a constant state to the control unit (130) using the power input from the power supply unit (110). Therefore, when the power input from the power supply unit (110) is cut off, the voltage signal output from the detachment detection unit (120) to the control unit (130) is also cut off.

[0052] The control unit (130) detects when the voltage signal is interrupted and then supplied again, i.e., when the state of the voltage signal changes, and determines whether the personal information management device (100) is detached. The control unit (130) is implemented as a semiconductor chip, and when the driving power for driving the semiconductor chip is supplied, it first checks whether personal information is stored in the internal memory (131).

[0053] If personal information is not stored in the memory (131), the control unit (130) receives personal information through an external input device (500) or receives personal information through an external service providing device (400) and stores it in the internal memory (131), and starts monitoring the voltage signal input from the detachment detection unit (120).

[0054] If personal information is already stored in the memory (131), the control unit (130) monitors the voltage signal input from the detachment detection unit (120).

[0055] The control unit (130) determines whether the personal information management device (100) has been removed based on the monitoring results of the voltage signal. In particular, in a preferred embodiment of the present invention, the control unit (130) determines whether the voltage signal input from the removal detection unit (120) changes from a low state to a high state, thereby determining whether the personal information management device (100) has been removed from an electric vehicle in which it was legally installed and reinstalled in another electric vehicle.

[0056] However, the control unit (130) of the present invention determines that a detachment has occurred when the voltage signal input from the detachment detection unit (120) changes from a low state to a high state is only an example, and the method for determining whether or not a detachment has occurred can be implemented in various ways in conjunction with the configuration of the detachment detection unit (120).

[0057] If the control unit (130) determines that the personal information management device (100) has been removed and reinstalled, it disables the personal information provision function, thereby blocking personal information stored in the memory (131) from being provided externally.

[0058] Here, it should be noted that the control unit (130) can perform functions other than providing personal information after the personal information management device (100) is reinstalled. That is, the control unit (130) can be linked with other controllers within the reinstalled electric vehicle and communicate with an external service provision device (400), thereby enabling the process to proceed up to the stage before providing personal information among a series of service execution procedures, such as PnC services and FoD services.

[0059] In addition, if the personal information management device (100) determines that the personal information management device (100) has been removed, the communication unit (140) notifies the original customer terminal (300) of the removal of the personal information management device (100) through the mobile communication network.

[0060] Additionally, the control unit (130) periodically checks whether the sleep mode conditions are satisfied, and if the sleep conditions are satisfied, it can proceed to sleep mode.

[0061]

[0062] So far, the overall configuration and function of the personal information management device (100) according to a preferred embodiment of the present invention have been described. FIG. 2 is a circuit diagram illustrating the detailed configuration of the personal information management device (100) according to a preferred embodiment of the present invention.

[0063] Hereinafter, referring further to FIG. 2, the configuration of the personal information management device (100) will be described. First, the power supply unit (110) includes a first switch (Q1) and a second switch (Q2). In a preferred embodiment of the present invention, the first switch (Q1) and the second switch (Q2) are implemented as bipolar transistors (BJTs). Specifically, the first switch (Q1) is implemented as an NPN bipolar transistor, and the second switch (Q2) is implemented as a PNP bipolar transistor.

[0064] The base of the first switch (Q1) and the base of the second switch (Q2) are each connected to the first node (N1), and the first node (N1) is connected to the second power supply (Vcc2).

[0065] The collector of the first switch (Q1), the first resistor (R1), and the cathode of the first diode (D1) are connected to the second node (N2), and the emitter of the first switch (Q1) is connected to ground. The other terminal of the first resistor (R1) is connected to the first power source (Vcc1).

[0066] The collector of the second switch (Q2), the second resistor (R2), and the cathode of the second diode (D2) are connected to the third node (N3), and the emitter of the second switch (Q2) is connected to ground. The other terminal of the second resistor (R2) is connected to a second power source (Vcc2).

[0067] The anodes of the first diode (D1) and the second diode (D2) are respectively connected to the fourth node (N4), and one end of the third resistor (R3) and the fourth resistor (R4) is connected. The other end of the fourth resistor (R4) is connected to the driving power supply terminal (Vin) of the semiconductor chip implementing the control unit (130), and the other end of the third resistor (R3) is connected to the fifth node (N5) to which the capacitor (C1) and the voltage monitoring terminal (Pin) are connected. Here, the fourth node (N4) becomes the input node of the detachment detection unit (120).

[0068] As described above, a capacitor is connected to the fifth node (N5) and the voltage monitoring terminal (Pin) of the control unit (130) is connected.

[0069] In the above configuration, the resistance values ​​of the first resistor (R1) to the fourth resistor (R4) and the capacity of the capacitor (C1) are changed according to the design specifications, so a detailed description is omitted.

[0070] Referring to FIG. 2, the operation of the personal information management device (100) will be described. First, when the personal information management device (100) is first installed in an electric vehicle, the capacitor (C1) is not charged. Then, when battery 1 (high voltage battery) (210) and battery 2 (low voltage battery) (220) are connected to the personal information management device (100) and the first power source (Vcc1) and the second power source (Vcc2) are supplied, Vcc2 is applied to the bases of the first switch (Q1) and the second switch (Q2), respectively.

[0071] When Vcc2 is in a high state, the first switch (Q1) is an NPN type and thus becomes conductive, and the second switch (Q2) is a PNP type and thus becomes non-conductive.

[0072] Since the first switch (Q1) is in a conducting state, the second node (N2) is connected to the ground, and the output voltage (V1) of the second node (N2) becomes low. The output voltage (V2) of the third node (N3) becomes high because it is the voltage after the Vcc2 voltage drops at the second resistor (R2), and accordingly, the voltage of the fourth node (N4) also becomes high.

[0073] The voltage (V2) of the third node (N3) is output to the fourth node (N4) through the second diode (D2), and the voltage of the fourth node (N4) is input to the driving power terminal (Vin) of the control unit (130) through the fourth resistor (R4) to drive the control unit (130).

[0074] In addition, the voltage of the fourth node (N4) is output to the fifth node (N5) through the third resistor (R3), the voltage of the fifth node (N5) charges the capacitor (C1), and the voltage charged in the capacitor (C1) is input to the voltage monitoring terminal (Pin) of the control unit (130). Since the voltage charged in the capacitor (C1) is continuously input to the voltage monitoring terminal (Pin), a high voltage signal is input to the voltage monitoring terminal (Pin) of the control unit (130) while the capacitor (C1) is charged.

[0075] After the control unit (130) is driven, the control unit (130) receives personal information through an input device (500) or in conjunction with an external service providing device (400) and stores it in the internal memory (131). When the personal information is stored, personal information protection and management operations are performed.

[0076] Meanwhile, when power is supplied from Vcc1 and Vcc2 of the electric vehicle (High state), if Vcc2 of the electric vehicle becomes 0V (Low state) due to removal or failure of the battery 2 (220), the first switch (Q1) becomes non-conductive and the second switch (Q2) becomes conductive.

[0077] Accordingly, the voltage (V1) applied to the second node (N2) becomes High because Vcc1 is stepped down by the voltage applied to the first resistor (R1), and the voltage is transmitted to the fourth node (N4) through the first diode (D1). Meanwhile, since the second switch (Q2) becomes conductive, the voltage (V2) applied to the third node becomes Low.

[0078] As described above, the voltage applied to the fourth node (N4) is input to the driving power terminal (Vin) of the control unit (130) through the fourth resistor (R4) to drive the control unit (130), and a charging voltage is applied to the capacitor (C1) through the third resistor (R3), and the voltage charged in the capacitor (C1) is input as a voltage signal to the voltage monitoring terminal (Pin) of the control unit (130).

[0079] Meanwhile, when power is supplied from Vcc1 and Vcc2 of the electric vehicle (High state), if Vcc1 becomes 0V (Low state) due to removal or failure of battery 1 (210), Vcc2 maintains the High state, so the first switch (Q1) maintains the conductive state, the second node (N2) is connected to the ground, and Vcc1 becomes 0V, so the output voltage (V1) of the second node (N2) maintains the Low state.

[0080] In addition, since Vcc2 remains in a high state, the second switch (Q2) remains in a non-conductive state, and the output voltage (V2) of the third node (N3) becomes high because it is the voltage of Vcc2 dropped by the second resistor (R2), and accordingly, the voltage of the fourth node (N4) also becomes high.

[0081] The voltage of the fourth node (N4) is input to the driving power terminal (Vin) of the control unit (130) through the fourth resistor (R4), and the control unit (130) maintains the driving state, while the voltage of the fourth node (N4) is output to the fifth node (N5) through the third resistor (R3), and the voltage of the fifth node (N5) charges the capacitor (C1), so that the voltage signal input to the voltage monitoring terminal (Pin) of the control unit (130) maintains a high state.

[0082] Meanwhile, when the personal information management device (100) is removed, both Vcc1 and Vcc2 are cut off and become 0V (Low state). Then, the first switch (Q1) switches from a conducting state to a non-conducting state, and the voltage V1 of the second node (N2) becomes 0 (Low state). In addition, the second switch (Q2) switches from a non-conducting state to a conducting state, but since Vcc2 is 0V, the voltage V2 of the third node (N3) becomes 0V (Low state).

[0083] Accordingly, the voltage supplied from Vcc1 and Vcc2 to the fourth node (N4) becomes 0, and the power charged in the capacitor (C1) begins to discharge, so that current flows to the driving power terminal (Vin) of the control unit (130) through the third resistor (R3) and the fourth resistor (R4), and power is consumed, and the voltage of the capacitor (C1) becomes 0.

[0084] Afterwards, when the removed personal information management device (100) is installed in another electric vehicle and Vcc1 and Vcc2 power is supplied from the high-voltage battery and low-voltage battery of the electric vehicle, driving power is supplied to the driving power terminal (Vin) of the control unit (130) in the same manner as when the personal information management device (100) was first installed in the electric vehicle, the control unit (130) is driven, and the control unit (130) receives a voltage signal through the power monitoring terminal (Pin).

[0085] As in the above example, when the personal information management device (100) is maintained in the electric vehicle in which it is first installed, the capacitor (C1) is always charged with voltage, so the voltage signal input through the power monitoring terminal (Pin) remains in a high state.

[0086] However, when the personal information management device (100) is detached, as described above, the capacitor (C1) is discharged, and when it is reinstalled in the electric vehicle, the capacitor (C1) is charged at a relatively slower speed than the speed at which the control unit (130) is driven, so that the voltage signal initially input through the power monitoring terminal (Pin) is in a Low state when the control unit (130) is driven, and as time passes and the capacitor (C1) is charged, the voltage signal input through the power monitoring terminal (Pin) is switched from a Low state to a High state, and the control unit (130) can detect the switch from the Low state to the High state of this voltage signal and determine the detachment and reinstallation of the personal information management device (100).

[0087] In Table 1 below, the states of Vcc1, Vcc2, the second node (N2) voltage V1, and the third node (N3) voltage V2 described above are summarized.

[0088] Vcc 1Vcc 2V 1V 2HighHighLowHighHighLowHighLowLowHighLowHighLowLowLowLow

[0089]

[0090] Figure 3 is a flowchart illustrating a personal information management method according to a preferred embodiment of the present invention.

[0091] Hereinafter, with further reference to FIG. 3, a personal information management method for an electric vehicle according to a preferred embodiment of the present invention (hereinafter, abbreviated as "personal information management method") will be described. However, since the personal information management method of the present invention is performed in the personal information management device (100) for the electric vehicle described with reference to FIGS. 1 and 2, it should be noted that even without a specific description, the functions performed in the aforementioned personal information management device (100) are performed in the personal information management method.

[0092] First, when the personal information management device (100) is installed in an electric vehicle, the Vcc1 and Vcc2 power output from the high-voltage battery and low-voltage battery of the electric vehicle is input to the power supply unit (110) of the personal information management device (100), and the power output from the power supply unit (110) is input to the driving power terminal (Vin) of the control unit (130), thereby driving the control unit (130), thereby driving the personal information management device (100) (S311).

[0093] The driven control unit (130) checks whether personal information is stored in the internal memory (131) (S313). If no personal information is stored, personal information is received from the input device (500) or an external service device and stored in the internal memory (131) (S315). If personal information is not stored in the memory (131), the personal information protection process described below is unnecessary, and steps S313 and S315 are repeatedly performed.

[0094] Meanwhile, in step S313, if personal information is stored in the internal memory (131) of the control unit (130), the control unit (130) continuously monitors the voltage signal by examining the voltage signal input to the power monitoring terminal (Pin) (S320).

[0095] The control unit (130) monitors changes in the voltage signal to determine whether a voltage change corresponding to a predefined rule has occurred (S331), and if a voltage change corresponding to a predefined rule has occurred, it determines that an abnormal situation has occurred (S333) and disables the personal information provision function (S335).

[0096] In a preferred embodiment of the present invention, step S331 checks whether the voltage signal input to the power monitoring terminal (Pin) of the control unit (130) has changed from a low state to a high state as described above with reference to FIGS. 1 and 2.

[0097] In step S335, when the personal information provision function is disabled, the control unit (130) notifies the customer terminal (300) through the communication unit (140) that the personal information management device (100) has been removed from the original electric vehicle and installed in another electric vehicle (S340).

[0098] After that, the control unit (130) checks whether the sleep condition is satisfied (S351), and if the sleep condition is satisfied, it enters sleep mode (S353).

[0099]

[0100] FIG. 4 is a circuit diagram illustrating a detailed configuration of a personal information management device for an electric vehicle according to another preferred embodiment of the present invention.

[0101] Another embodiment of the present invention illustrated in FIG. 4 is different from the first switch (Q1) illustrated in FIG. 2 in that it is implemented with an N-type FET (Field Effect Transistor) instead of an NPN bipolar transistor, and the second switch (Q2) is implemented with a P-type FET (Field Effect Transistor) instead of a PNP bipolar transistor, and the remaining configuration is the same.

[0102] That is, the gate of the first switch (Q1) and the gate of the second switch (Q2) are connected to the first node (N1), the source of the first switch (Q1) and the source of the second switch (Q2) are connected to ground, the drain of the first switch (Q1) is connected to the second node (N2), and the drain of the second switch (Q2) is connected to the third node (N3).

[0103] The logic for changing the voltage signal applied to the capacitor (C1) and the control unit (130) as the first power source (Vcc1) and the second power source (Vcc2) change is the same, so a detailed description is omitted.

[0104]

[0105] FIG. 5 is a circuit diagram illustrating a detailed configuration of a personal information management device for an electric vehicle according to another preferred embodiment of the present invention.

[0106] In the embodiment illustrated in FIG. 5, a third switch (Q3) is installed between the fifth node (N5) and the voltage monitoring terminal (Pin) of the control unit (130). In this embodiment, the third switch (Q3) is implemented as an NPN bipolar transistor, the base of the third switch (Q3) is connected to the fifth node (N5), the collector is connected to the fourth resistor (R4) and the driving power supply terminal (Vin) of the control unit (130), and the emitter is connected to the voltage monitoring terminal (Pin) of the control unit (130).

[0107] The overall operation of this embodiment is the same as that described with reference to FIG. 2, and a third switch (Q3) was added to prevent the voltage input to the voltage monitoring terminal (Pin) from floating and to measure a more clear voltage value.

[0108] When power is supplied from either the first power source (Vcc1) or the second power source (Vcc2), the voltage (V3) input to the driving power supply terminal (Vin) through the fourth resistor (R4) as described above becomes High.

[0109] Meanwhile, when the capacitor (C1) is not charged, the voltage applied to the base of the third switch (Q3) is in a low state, the third switch (Q3) is in a non-conductive state, and the voltage signal input to the voltage monitoring terminal (Pin) is also in a low state (0 V), and the low state is maintained even while the capacitor (C1) is charged.

[0110] After that, when the capacitor (C1) is charged, the third switch (Q3) becomes conductive, and the voltage input to the driving power supply terminal (Vin) is also input to the voltage monitoring terminal (Pin), and since this voltage is in a high state, the control unit (130) can confirm that the voltage signal input to the voltage monitoring terminal (Pin) changes from a low state to a high state.

[0111] Meanwhile, those skilled in the art will recognize that the configuration of the third switch (Q3) illustrated in FIG. 5 can also be applied to another embodiment of the present invention illustrated in FIG. 4.

[0112]

[0113] The personal information management method of an electric vehicle according to a preferred embodiment of the present invention described so far can be implemented as a computer program implemented as a computer-executable command and stored in a non-transitory storage medium.

[0114] Storage media include all types of recording devices that store data that can be read by a computer system. Examples of computer-readable storage media include ROM, RAM, CD-ROMs, and optical data storage devices. Furthermore, computer-readable storage media can be distributed across networked computer systems, allowing computer-readable code to be stored and executed in a distributed manner.

[0115] The present invention has been described above, focusing on preferred embodiments thereof. Those skilled in the art will appreciate that the present invention can be implemented in modified forms without departing from its essential characteristics. Therefore, the disclosed embodiments should be considered illustrative rather than limiting. The scope of the present invention is set forth in the claims, not the foregoing description, and all differences within the scope equivalent thereto should be construed as being encompassed by the present invention.

Claims

1. A power supply unit that receives a first power source (Vcc1) input from one of the high-voltage battery and the low-voltage battery of an electric vehicle and a second power source (Vcc2) input from the other, and outputs power to the detachment detection unit and the control unit, respectively; The detachment detection unit detects whether the personal information management device is detached or not using power input from the power supply unit; and A personal information management device for an electric vehicle, characterized in that it comprises a control unit that stores personal information in an internal memory, is driven by power input from the power supply unit, examines a voltage signal input from the detachment detection unit to determine whether the personal information management device is detached, and disables the provision function of personal information stored in the memory when it is determined that the personal information management device is detached.

2. In the first paragraph, the control unit A personal information management device for an electric vehicle, characterized in that it is determined that the personal information management device has been detached when the state of the voltage signal input from the detachment detection unit changes.

3. In the second paragraph, the control unit A personal information management device for an electric vehicle, characterized in that it is determined that the personal information management device has been detached when a voltage signal input from the detachment detection unit changes from a low state to a high state.

4. In paragraph 1, The above power supply unit When at least one of the first power source (Vcc1) and the second power source (Vcc2) is input, Continuously output power to the above detachment detection unit and the above control unit, respectively, The above detachment detection unit When power is continuously input from the above power supply unit, a voltage signal of a constant state is output to the control unit, A personal information management device for an electric vehicle, characterized in that when power is not supplied from the power supply unit, a voltage signal in a state different from the constant state is output to the control unit.

5. In the fourth paragraph, the power supply unit A first switch implemented with an NPN bipolar transistor; A second switch implemented with a PNP bipolar transistor; A first diode having a cathode connected to the collector of the first switch; A second diode having its cathode connected to the collector of the second switch; a first resistor connected between the collector of the first switch and the first power supply; and a second resistor connected between the collector of the second switch and the second power source; The second power is input to the base of the first switch and the second switch, A personal information management device for an electric vehicle, characterized in that the cathodes of the first diode and the second diode are commonly connected to the input node of the detachment detection unit.

6. In the fourth paragraph, the power supply unit A first switch implemented with an N-type FET (Field Effect Transistor); A second switch implemented with a P-type FET (Field Effect Transistor); A first diode having a cathode connected to the drain of the first switch; A second diode having a cathode connected to the drain of the second switch; a first resistor connected between the drain of the first switch and the first power supply; and a second resistor connected between the drain of the second switch and the second power source; The second power is input to the gates of the first switch and the second switch, A personal information management device for an electric vehicle, characterized in that the cathodes of the first diode and the second diode are commonly connected to the input node of the detachment detection unit.

7. In the fourth paragraph, the detachment detection unit A third resistor connected between the input node of the detachment detection unit, which receives power from the power supply unit, and the power monitoring terminal of the control unit; and A personal information management device for an electric vehicle, characterized in that it includes a capacitor connected between the power monitoring terminal of the control unit and the ground and outputting a voltage signal to the power monitoring terminal.

8. In paragraph 7, the control unit Through the fourth resistor connected to the input node of the above detachment detection unit, the driving voltage is input from the power supply unit to the driving power terminal and driven, A personal information management device for an electric vehicle characterized in that when a driving voltage is input, a voltage signal input to the power monitoring terminal is examined, and when the voltage signal changes from a low state to a high state, the personal information management device is determined to have been removed, and the provision function of personal information stored in the memory is disabled.

9. In the fourth paragraph, the detachment detection unit A third resistor connected between the input node of the detachment detection unit, which receives power from the power supply unit, and the third switch; A capacitor having one end connected between the third resistor and the third switch and the other end grounded; A personal information management device for an electric vehicle, characterized in that it includes a third switch that is turned on / off according to the voltage charged in the capacitor, outputs a high voltage signal to the power monitoring terminal in the on state, and outputs a low voltage signal to the power monitoring terminal in the off state.

10. In paragraph 1, It further includes a communication unit that performs communication with the customer's terminal to which personal information belongs through a mobile communication network, The above control unit A personal information management device for an electric vehicle, characterized in that when it is determined that the personal information management device has been removed, the removal of the personal information management device is notified to the customer terminal through the communication unit.

11. A personal information management method performed in a personal information management device, comprising: a power supply unit that receives a first power (Vcc1) input from one of a high-voltage battery and a low-voltage battery of an electric vehicle and a second power (Vcc2) input from the other, and outputs power to a detachment detection unit and a control unit, respectively; the detachment detection unit that detects whether a personal information management device is detached using the power input from the power supply unit; and the control unit that stores personal information in an internal memory, is driven by the power input from the power supply unit, examines a voltage signal input from the detachment detection unit to determine whether the personal information management device is detached, and deactivates a function of providing personal information stored in the memory when it is determined that the personal information management device is detached. (a) a step in which the personal information management device is driven when the first power source (Vcc1) and the second power source (Vcc2) are input; (b) a step of checking whether personal information is stored and, if personal information is stored, monitoring a voltage signal input from the detachment detection unit; and (c) A personal information management method characterized by including a step of determining that the personal information management device has been removed when the state of the monitored voltage signal changes and disabling the function of providing stored personal information.

12. In paragraph 11, step (c) A personal information management method for an electric vehicle, characterized in that it is determined that the personal information management device has been detached when a voltage signal input from the detachment detection unit to the control unit changes from a low state to a high state.

13. In paragraph 11, The above power supply unit When at least one of the first power source (Vcc1) and the second power source (Vcc2) is input, Continuously output power to the above detachment detection unit and the above control unit, respectively, The above detachment detection unit When power is continuously input from the above power supply unit, a voltage signal of a constant state is output to the control unit, A personal information management method for an electric vehicle, characterized in that when power is not supplied from the power supply unit, a voltage signal in a state different from the constant state is output to the control unit.

14. In the 13th paragraph, the power supply unit A first switch implemented with an NPN bipolar transistor; A second switch implemented with a PNP bipolar transistor; A first diode having a cathode connected to the collector of the first switch; A second diode having its cathode connected to the collector of the second switch; a first resistor connected between the collector of the first switch and the first power supply; and a second resistor connected between the collector of the second switch and the second power source; The second power is input to the base of the first switch and the second switch, A personal information management method for an electric vehicle, characterized in that the cathodes of the first diode and the second diode are commonly connected to the input node of the detachment detection unit.

15. In the 13th paragraph, the power supply unit A first switch implemented with an N-type FET (Field Effect Transistor); A second switch implemented with a P-type FET (Field Effect Transistor); A first diode having a cathode connected to the drain of the first switch; A second diode having a cathode connected to the drain of the second switch; a first resistor connected between the drain of the first switch and the first power supply; and a second resistor connected between the drain of the second switch and the second power source; The second power is input to the gates of the first switch and the second switch, A personal information management device for an electric vehicle, characterized in that the cathodes of the first diode and the second diode are commonly connected to the input node of the detachment detection unit.

16. In the 13th paragraph, the detachment detection unit A third resistor connected between the input node of the detachment detection unit, which receives power from the power supply unit, and the power monitoring terminal of the control unit; and A personal information management method for an electric vehicle, characterized in that it includes a capacitor connected between the power monitoring terminal of the control unit and the ground and outputting a voltage signal to the power monitoring terminal.

17. In paragraph 16, the control unit Through the fourth resistor connected to the input node of the above detachment detection unit, the driving voltage is input from the power supply unit to the driving power terminal and driven, A personal information management device for an electric vehicle characterized in that when a driving voltage is input, a voltage signal input to the power monitoring terminal is examined, and when the voltage signal changes from a low state to a high state, the personal information management device is determined to have been removed, and the provision function of personal information stored in the memory is disabled.

18. In the 13th paragraph, the detachment detection unit A third resistor connected between the input node of the detachment detection unit, which receives power from the power supply unit, and the third switch; A capacitor having one end connected between the third resistor and the third switch and the other end grounded; A personal information management device for an electric vehicle, characterized in that it includes a third switch that is turned on / off according to the voltage charged in the capacitor, outputs a high voltage signal to the power monitoring terminal in the on state, and outputs a low voltage signal to the power monitoring terminal in the off state.

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