TWI763934B - Wireless communication system - Google Patents

Abstract

A wireless communication system includes: an in-vehicle unit mounted on a vehicle and capable of wirelessly transmitting an access signal when an operation unit is operated; a portable device capable of wirelessly transmitting a vehicle-specific authentication code on a condition that the access signal is received; and a determination unit capable of determining whether or not the authentication code is a regular authentication code on a condition that the authentication code is received. Start of a driving source of the vehicle is permitted or running of the vehicle is enabled when the determination unit determines that the authentication code is the regular authentication code, and a security mode in which a function of transmitting the access signal by the in-vehicle unit or a function of transmitting the authentication code by the portable device is stopped can be set by a predetermined setting operation.

Description

wireless communication system

Cross-references to related applications This application is based on and claims priority to the following applications: Prior Japanese Patent Application No. 2017-197431 filed on October 11, 2017 and Japanese Patent Application No. 2017, filed on September 3, 2018 No. 2018-164396, these Japanese patent applications are incorporated herein by reference in their entirety. The present invention relates to wireless communication systems.

Background of the Invention The present invention relates to a wireless communication system, which can enable the driving source of the vehicle to start or realize the running of the vehicle when the verification code obtained by the unit in the vehicle is a conventional verification code.

A wireless communication system (so-called passive keyless entry device) has been widely distributed, the wireless communication system comprising: a portable device carried by an occupant and capable of transmitting a vehicle-specific verification code by radio waves; and a unit-in-vehicle capable of receiving the transmitted verification code. In this wireless communication system, the contact of various locks of the vehicle and the activation of the driving source are permitted only when the verification code wirelessly transmitted from the portable device is a conventional verification code. This wireless communication system can be configured as follows. When an access button located in a unit in the carrier is pressed, an access signal is wirelessly transmitted at low frequency, and the portable device that has received the access signal wirelessly transmits a high frequency verification code. In addition, when the verification code is received by the unit in the carrier, it can be determined whether the verification code is a conventional verification code.

By the way, in the wireless communication system as described above, there is a problem that effective preventive measures cannot be taken against actions such as a so-called repeater attack, in which a third party illegally conducts a repeater attack Communication between the portable device and the unit in the carrier. That is, since a third party can easily demodulate the modulated signal in the communication between the portable device and the unit in the vehicle, a third party can illegally use a repeater or the like The conventional verification code from the portable device is transmitted to the unit in the carrier, thereby releasing the various locks of the carrier and activating the driving source of the carrier.

Various countermeasures have been proposed to prevent illegal actions, such as repeater attacks as described above. For example, precautions to measure the time until a low frequency signal is received by the portable device, precautions to change the frequency of the high frequency signal, or precautions to change the strength of the radio waves to be transmitted, or similar. Furthermore, as a related art, for example, as disclosed in JP-A-2016-220088, it has also been proposed to prevent devices such as repeaters by using a portable device capable of modulating the verification code by a plurality of modulation schemes Attack action.

However, in the related art wireless communication system, the processing and configuration of the signals communicated between the unit and the portable device in the vehicle becomes extremely complicated, and therefore, the occupants with the legitimate portable device are affected by The verification process takes a long time, or the accuracy of the verification process may decrease. Therefore, there is a problem that the related art wireless communication system is insufficient to more reliably prevent illegal actions such as so-called repeater attacks.

The present invention aims to provide a wireless communication system that can improve the security effect while avoiding the complexities of signal processing.

Summary of Invention According to an aspect of the present invention, there is provided a wireless communication system comprising: a unit in a carrier mounted on a carrier and including an operation unit arbitrarily operated by an occupant, the unit in a carrier capable of wirelessly transmits an access signal when the operating unit is operated; a portable device, which can be carried by the occupant, capable of wirelessly transmitting a vehicle-specific verification code on condition that the access signal is received and a determination unit capable of determining whether the verification code is a conventional verification code under a condition of receiving the verification code, wherein when the determination unit determines that the verification code is the conventional verification code, one of the vehicles is permitted The activation of the drive source, or the realization of the running of the vehicle, and one of the safety modes can be set by a predetermined setting operation. In the safety mode, a function of transmitting the access signal by the unit in the vehicle is stopped. Or a function of transmitting the verification code through the portable device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

As shown in FIG. 1 and FIG. 2, the wireless communication system according to the first embodiment is assembled by a so-called passive keyless entry device, which performs a portable keyless entry device carried by an occupant. wireless communication between the type device 2 (electronic key) and the unit 1 in the vehicle mounted on a vehicle such as a motorcycle, and the passive keyless input device can allow the verification code obtained by the unit 1 in the vehicle When it is a conventional verification code, start the engine as the driving source of the vehicle or realize the driving of the vehicle.

Portable device 2 can be carried by an occupant and can wirelessly transmit a vehicle-specific verification code on condition that the portable device receives an access signal from unit 1 in the vehicle. As shown in FIG. 2, the portable device 2 includes an operation button 2a (operation unit), an LED 2b as a notification unit, a low frequency antenna G1 capable of wirelessly receiving an access signal (low frequency signal) from the unit 1 in the carrier , can wirelessly transmit the verification code (high frequency signal) to the high frequency antenna G2 of the unit 1 in the carrier, the control unit 14 electrically connected to the low frequency antenna G1 and the high frequency antenna G2, the battery D and the coil K.

A storage unit 15 capable of storing the carrier-specific verification code is formed in the control unit 14 . Control unit 14 may operate by receiving power from battery D or coil K when the immobilizer function is activated. Under the condition that the access signal from unit 1 in the carrier is received by the low frequency antenna G1, the control unit 14 is adapted to wirelessly transmit the carrier specific verification code by the high frequency antenna G2.

The unit 1 in the vehicle is mounted on a vehicle (in this embodiment, the body of a motorcycle). As shown in FIG. 1, the in-vehicle unit 1 has an access button 1a (operating unit) and a locking bar L that can be arbitrarily operated by an occupant such as a driver. When the access button 1 a is operated, the in-vehicle unit 1 can wirelessly transmit the access signal to the portable device 2 . As shown in FIG. 2, in addition to the access button 1a and the locking rod L, the unit 1 in the carrier also includes a control unit 3, a motor M capable of driving the locking rod L (see FIG. 1), a low frequency antenna F1, and a high frequency Antenna F2.

The motor M is electrically connected to a battery 9 mounted on the carrier via a power control driver 10 . The motor M can be controlled by the motor driver 11 and moves the locking bar L. The locking bar L is movable between a locking position, in which the locking bar is inserted into a locking hole (not shown) formed in the handle of the carrier to lock the handle, and an unlocking position, and in which In the unlocked position, the locking bar is retracted from the locking hole to unlock the handle.

Specifically, when the locking bar L is in the locked position, the handle is locked and the vehicle cannot be driven. When the locking bar L is in the unlocked position, the handle is unlocked and the vehicle can be driven. In addition, the position of the locking rod L can be detected by the position detection sensor 16 . The position of the locking rod L (the locked position or the unlocked position) detected by the position detection sensor 16 can be transmitted to the control unit 3 .

The control unit 3 is electrically connected to the low frequency antenna F1 via the low frequency driver 12 and to the high frequency antenna F2 via the high frequency driver 13 . The control unit 3 may perform control based on the transmission of the low frequency signal by the low frequency antenna F1 and the reception of the high frequency signal by the high frequency antenna F2. In addition, the control unit 3 is electrically connected to the access button 1a (operation unit), and is electrically connected to an Engine Control Unit (ECU) 17 installed on the vehicle via an intelligent power device (IPD) ) 18 or the like is electrically connected to right and left turn signals S (directional indicators).

In addition, under the condition that the access button 1a is pressed, the control unit 3 according to the present embodiment can wirelessly transmit the access signal including the low frequency signal from the low frequency antenna F1 to the portable device 2 . Under the condition that the verification code including the high-frequency signal transmitted from the portable device 2 wirelessly is received by the high-frequency antenna F2, the control unit 3 can determine whether the received verification code is a conventional verification code. The control unit 3 includes a determination unit 4 capable of determining a verification code, a setting unit 5 capable of setting a security mode, a release unit 6 capable of releasing the security mode, an immobilizer control unit 7 capable of activating the immobilizer function, and a random Storage unit 8 for digital codes or the like.

The determination unit 4 is formed in the control unit 3 arranged in the unit 1 in the carrier. Under the condition that the verification code transmitted from the portable device 2 is received by the high-frequency antenna F2, the determination unit 4 can determine whether the verification code is a conventional verification code. Thus, when it is determined that the verification code received by the determining unit 4 is a regular verification code, under the control of the control unit 3, the motor M is driven to move the locking rod L to the unlocking position when the locking rod L is in the locking position. Further, under the control of the control unit 3, a permission signal is transmitted to the ECU 17, and the start of the engine (drive source) is permitted (for example, the operation of the starter is permitted). On the other hand, when it is determined that the verification code received by the determination unit 4 is not a normal verification code, the motor M is not driven and the permission signal is not transmitted to the ECU 17 .

Here, the wireless communication system according to the present embodiment can set a security mode in which at least the function of transmitting the access signal by the unit 1 in the vehicle is stopped by a predetermined setting operation. Specifically, when a specific operation (for example, a "long press operation" or "continuous press operation" or a similar operation different from the normal operation) is performed on the access button 1a (operation unit) provided in the unit 1 in the carrier , the security mode is set by the setting unit 5 and at least stops the function of transmitting the access signal by the unit 1 in the vehicle. In this way, when the security mode is set, the access signal (low frequency signal) is not transmitted from the low frequency antenna F1 of the unit 1 in the vehicle, even when the access button 1a is pressed. Therefore, the access signal is not received by the low frequency antenna G1 of the portable device 2 .

In the safe mode, it is sufficient to at least stop the function of the transmission of the access signal by the unit 1 in the carrier. In the secure mode, in addition to stopping the function of transmitting the access signal through the unit 1 in the vehicle, the function of transmitting the verification code through the portable device 2 can also be stopped (ie, the function of transmitting the access signal through the unit in the vehicle 2) The function of the signal and the transmission of the verification code by the portable device can be disabled). In addition, the predetermined operation for setting the security mode is not limited to the specific operation of the access button (operation unit) of the unit 1 in the carrier as in the present embodiment. For example, a specific operation (eg, "long press operation" or "continuous press operation" or similar operations different from normal operations) on the operation button 2a (operation unit) provided in the portable device 2 can be performed.

The release unit 6 can release the security mode by performing a predetermined release operation on the operation button 2a (operation unit) provided in the portable device 2 . In addition, when the security mode is released, the function of transmitting the access signal through the unit 1 in the vehicle (in this embodiment, in addition to the function of transmitting the access signal, the function of transmitting the verification code through the portable device 2) )recover. In this way, the unit 1 in the carrier can transmit the access signal, and the portable device 2 can transmit the verification code.

In addition, the predetermined operation for releasing the security mode is not limited to the specific operation of the operation button 2a (operation unit) of the portable device 2 as in the present embodiment. For example, a specific operation can be performed on the access button 1a (operation unit) of unit 1 in the carrier (for example, a "long press operation" or a "continuous press operation" or a similar operation different from the normal operation), or a An operation unit (preferably, an operation unit arranged in a hidden location that is difficult to be found by a third party) is separately arranged in the unit 1 of the carrier or an operation unit on the carrier to perform an operation.

In addition, in this embodiment, when the security mode is set, the random digital code is generated by the control unit 3 and stored in the storage unit 8 of the unit 1 in the vehicle and the storage unit 15 of the portable device 2, respectively. When the release operation is performed, the random digital code stored in the storage unit 15 of the portable device 2 is compared with the random digital code stored in the storage unit 8 of the unit 1 in the vehicle. Safe mode is only released when these random numbers match.

The immobilizer control unit 7 is provided to, for example, perform a predetermined operation on the access button 1a of the unit 1 in the carrier (a specific operation other than the operation when the access signal is transmitted and the operation when the security mode is set) Implement anti-theft lock function. That is, for example, in a state where the portable device 2 is brought close to the unit 1 in the vehicle, when the battery D of the portable device 2 is exhausted and the supply of power becomes impossible, the access button is 1a performs a specific action. Thus, the immobilizer control unit 7 is operated, and low frequency waves are transmitted to the portable device 2 so that the portable device 2 generates power in the coil K. The verification code can be transmitted wirelessly using the generated power.

Furthermore, in the portable device 2 according to the present embodiment, an LED 2b as a notification unit is attached. LED 2b can be turned on or blinking in a state where the safe mode is set. Thus, it is possible to notify that the security mode is set by turning on or blinking of the LED 2b. In this way, in addition to notifying the presence or absence of a safe mode setting, the LED 2b (notification unit) can also be configured to notify the occurrence of errors (including errors in generating random numbers or the like, in the vehicle Errors in communication between unit 1 and portable device 2, etc.). Meanwhile, the notification unit is not limited to the LED 2b provided in the portable device 2 . For example, another display unit provided in the portable device 2, such as an LED provided in the unit 1 in the carrier, or a display unit attached to the carrier (eg, a dashboard or a separate display unit) may be employed LCD panel, etc.).

Subsequently, the control content when the security mode is set in the wireless communication system according to the present embodiment will be described with reference to the flowchart of FIG. 3 .

First, in S1, it is determined whether or not a predetermined setting operation for setting the security mode (in this embodiment, a specific operation on the access button 1a) is performed. When it is determined that the predetermined setting operation is performed, the process proceeds to S2. In S2, the random digital code is generated by the control unit 3 and the random digital code is wirelessly transmitted to the portable device 2 by the low frequency antenna F1.

Next, in S3, the random digital code is stored in the storage unit 8 of the unit 1 in the carrier and the storage unit 15 of the portable device 2, respectively. Next, in S4, it is determined whether the random digital code is normally stored in the storage unit 8 of the unit 1 in the carrier. In S5 , it is determined whether the random digital code is normally stored in the storage unit 15 of the portable device 2 . When it is determined in S4 or S5 that the random number code is not generally stored, the setting of the security mode is stopped in S7. When it is determined in both S4 and S5 that the random number code is generally stored, the process proceeds to S6. In S6 , the security mode is set by the setting unit 5 .

Subsequently, the control content when verifying the verification code in the wireless communication system according to the present embodiment will be described with reference to the flowchart of FIG. 4 .

First, in S1, it is determined whether or not an operation (one pressing operation) is performed on the access button 1a. When it is determined that the operation is performed, the procedure proceeds to S2. In S2, it is determined whether the security mode is set. When it is determined in S2 that the security mode is not set, the process proceeds to S3. In S3, the access signal is wirelessly transmitted by the low frequency antenna F1. Next, in S4, the verification code from the portable device 2 is received through the high-frequency antenna F2.

Next, in S5, the determination unit 4 determines whether the verification code from the portable device 2 is a conventional verification code. When it is determined that the verification code is a conventional verification code, the procedure proceeds to S6. In S6, the permission signal is transmitted to the ECU 17 and the start of the engine (drive source) is permitted. Further, in the present embodiment, in S6, in addition to transmitting the permission signal to the ECU 17, the motor M is also driven to move the lock rod L to the unlock position when the lock rod L is in the lock position. In this way, the vehicle is allowed to travel.

On the other hand, when it is determined in S2 that the security mode is set, S3 to S6 following S2 are skipped. Therefore, the function of transmitting the access signal from unit 1 in the carrier is stopped. In addition, when it is determined in S5 that the verification code from the portable device 2 is not a conventional verification code, S6 is skipped. Therefore, the engine (drive source) cannot be started, and the lock by the lock rod L is not released.

Subsequently, the control content when releasing the security mode in the wireless communication system according to the present embodiment will be described with reference to the flowchart of FIG. 5 .

First, in S1, it is determined whether or not a pressing operation (predetermination releasing operation) of the operation button 2a provided in the portable device 2 is performed. When it is determined that the operation is performed, the procedure proceeds to S2. In S2, the random digital code stored in the portable device 2 is received. That is, when the operation button 2a of the portable device 2 is operated, the random digital code stored in the storage unit 15 of the portable device 2 can be wirelessly transmitted through the high-frequency antenna G2 and can be transmitted through the carrier The high frequency antenna F2 of the middle unit 1 receives it.

Next, in S3, the control unit 3 compares the random digital code stored in the storage unit 8 of the unit 1 in the carrier with the random digital code transmitted from the portable device 2, and determines whether these random digital codes match . Thus, when it is determined from the result of the comparison of the random digital codes that the random digital codes match, the process proceeds to S4. In S4 , the safe mode is released by the release unit 6 . When it is determined that the random digital codes do not match, the process proceeds to S5. In S5, the security mode is not released by the release unit 6 and the setting of the security mode is continued.

However, when a normal operation (one push operation) is performed on the access button 1a of the unit 1 in the carrier after the safe mode is released, the access signal can be transmitted from the low frequency antenna F1 of the unit 1 in the carrier, and from the portable The verification code of the type device 2 can be determined by the determination unit 4 . Alternatively, when the security mode is released, the access signal can be automatically transmitted from the low frequency antenna F1 of the unit 1 in the vehicle, and the verification code from the portable device 2 can be determined by the determination unit 4 .

In this way, the security effect can be enhanced when operation of the access button 1a is required after the security mode is released. When the verification code is automatically determined, operability can be improved. In addition, it is preferable to arbitrarily select the control that requires the operation of the access button 1a and the control that automatically determines the verification code after the security mode is released.

Next, a wireless communication system according to a second embodiment of the present invention will be described.

Similar to the first embodiment, as shown in FIG. 1 and FIG. 6 , the wireless communication system according to the second embodiment is assembled by a so-called passive keyless input device, which can be executed by Wireless communication between a portable device 2 (electronic key) carried by an occupant and a unit 1 in a vehicle mounted on a vehicle such as a motorcycle, and the passive keyless entry device allows When the verification code obtained by the middle unit 1 is a conventional verification code, start the engine as the driving source of the vehicle or realize the driving of the vehicle. Meanwhile, the same components as those of the first embodiment are denoted by the same reference numerals, and thus a detailed description of the same components will be omitted.

In the wireless communication system according to the present embodiment, the setting unit 5 and the releasing unit 6 in the first embodiment are formed in the control unit 14 of the portable device 2 (electronic key). Here, the wireless communication system according to the present embodiment can set a security mode, and in the security mode, at least the function of transmitting the verification code by the portable device 2 is stopped by a predetermined setting operation. Specifically, when a specific operation (for example, a "long pressing operation" or "continuous pressing operation" or a similar operation different from the normal operation) is performed on the operation button 2a (operation unit) provided in the portable device 2, The security mode is set by the setting unit 5 and at least stops the function of transmitting the verification code by the portable device 2 . In this way, when the security mode is set, the verification code (high frequency signal) is not transmitted from the high frequency antenna G2 of the portable device 2, even when the access button 1a is pressed, so that the access signal is transmitted from the unit in the carrier When the low frequency antenna F1 of 1 transmits and is received by the low frequency antenna G1 of the portable device 2 .

In the safe mode, it is sufficient to at least stop the function of transmitting the verification code by the portable device 2 . In the safe mode, in addition to stopping the function of transmitting the verification code through the portable device 2, the function of transmitting the access signal through the unit in the vehicle 1 can also be stopped (ie, the function of transmitting the access signal through the unit in the vehicle) The function of the signal and the transmission of the verification code by the portable device can be disabled). In addition, the predetermined operation for setting the security mode is not limited to the specific operation of the operation button 2a (operation unit) of the portable device 2 as in the present embodiment. For example, specific operations (eg, "long press operation" or "continuous press operation" or similar operations different from normal operations) on the access buttons (operation units) provided in the unit 1 in the carrier can be performed.

The release unit 6 can release the security mode by performing a predetermined release operation on the operation button 2a (operation unit) provided in the portable device 2 . In addition, when the security mode is released, the function of transmitting the verification code through the portable device 2 (in this embodiment, in addition to the function of transmitting the verification code, the function of transmitting the access signal through the unit 1 in the vehicle) recover. In this way, the unit 1 in the carrier can transmit the access signal, and the portable device 2 can transmit the verification code.

In addition, the predetermined operation for releasing the security mode is not limited to the specific operation of the operation button 2a (operation unit) of the portable device 2 as in the present embodiment. For example, a specific operation can be performed on the access button 1a (operation unit) of unit 1 in the carrier (for example, a "long press operation" or a "continuous press operation" or a similar operation different from the normal operation), or a An operation unit (preferably, an operation unit arranged in a hidden location that is difficult to be found by a third party) is separately arranged in the unit 1 of the carrier or an operation unit on the carrier to perform an operation.

In addition, as in the first embodiment, when the security mode is set, the random digital code is generated by the control unit 3 and stored in the storage unit 8 of the unit 1 in the vehicle and the storage unit 15 of the portable device 2, respectively. When the release operation is performed, the random digital code stored in the storage unit 15 of the portable device 2 can be compared with the random digital code stored in the storage unit 8 of the unit 1 in the vehicle. Safe Mode can only be released when these random numbers match.

Furthermore, in the portable device 2 according to the present embodiment, an LED 2b as a notification unit is attached. LED 2b can be turned on or blinking in a state where the safe mode is set. Thus, it is possible to notify that the security mode is set by turning on or blinking of the LED 2b. In this way, the LED 2b (notification unit) can also be configured to notify the occurrence of an error in addition to notifying the presence or absence of the setting of the safe mode. Meanwhile, the notification unit is not limited to the LED 2b provided in the portable device 2 . For example, another display unit provided in the portable device 2, such as an LED provided in the unit 1 in the carrier, or a display unit attached to the carrier (eg, a dashboard or a separate display unit) may be employed LCD panel, etc.).

Here, in the present embodiment, a selection unit 19 is disposed which can enable or disable the predetermined setting operation for setting the security mode in advance. The selection unit 19 is assembled by, for example, an operating switch provided in, for example, the unit 1 in the carrier, the portable device 2 or the carrier. By pre-operating the operation switch or the like by a user, activation or deactivation of a predetermined setting operation for setting the security mode can be preset.

Subsequently, the control content when the security mode is set in the wireless communication system according to the present embodiment will be described with reference to the flowchart of FIG. 7 .

When a predetermined setting operation for setting the security mode (in this embodiment, a specific operation on the operation button 2a (operation unit) of the portable device 2) is performed, the setting operation is determined on the side of the unit 1 in the vehicle Whether it is enabled by the selection unit 19 (S1). When it is determined that the setting operation is enabled, the process proceeds to S2. In S2, the security code signal is wirelessly transmitted to the portable device 2 through the low frequency antenna F1.

Next, on the side of the portable device 2, when the security code signal is received by the low frequency antenna G1 of the portable device 2 (S3), it is determined whether the received security code signal is correct (S4). When it is determined that the received security code signal is correct, the procedure proceeds to S5. In S5 , the security mode setting signal is transmitted through the high-frequency antenna G2 of the portable device 2 . Then, the procedure proceeds to S6. In S6 , the security mode is set by the setting unit 5 . The program continues to S7. In S7, the notification that the safe mode is set is performed by means of the LED 2b or a separate display unit or the like arranged in the portable device 2. Meanwhile, when it is determined in S4 that the security code signal is not correct, the procedure proceeds to S8. In S8, the setting of the safe mode is stopped.

On the other hand, when the safety mode setting signal is transmitted in S5, it is determined on the side of the unit 1 in the vehicle whether or not the safety mode setting signal is received (S9). When the safe mode setting signal is correctly received, the process proceeds to S10. In S10, the notification that the safe mode is set is performed by means of an LED or a separate display unit or the like arranged in the unit 1 in the carrier. Meanwhile, when it is determined in S1 that the setting operation is disabled by the selection unit 19, S2, S9, and S10 are skipped. In addition, when it is determined in S9 that the security mode setting signal is not correctly received, S10 is skipped.

Subsequently, the control content when releasing the security mode in the wireless communication system according to the present embodiment will be described with reference to the flowcharts of FIG. 8 and FIG. 4 .

When a pressing operation (predetermined release operation) is performed on the operation button 2a provided in the portable device 2, it is determined in Sa whether or not the release operation is performed. When it is determined that the release operation is performed, the procedure proceeds to Sb. In Sb, the safe mode is released by the release unit 6 . When it is determined that the release operation is not performed, the procedure proceeds to Sc. In Sc, Safe Mode continues. Thus, when an operation is performed on the access button 1a after the safe mode is released in Sb, control A similar to that in the first embodiment is performed.

Specifically, as shown in the flowchart of FIG. 4, in the control A, it is determined in S1 whether or not an operation (a pressing operation) is performed on the access button 1a. When it is determined that the operation is performed, the procedure proceeds to S2. In S2, it is determined whether the security mode is set. When it is determined in S2 that the security mode is not set, the process proceeds to S3. In S3, the access signal is wirelessly transmitted by the low frequency antenna F1. Next, in S4, the verification code from the portable device 2 is received through the high-frequency antenna F2.

Next, in S5, the determination unit 4 determines whether the verification code from the portable device 2 is a conventional verification code. When it is determined that the verification code is a conventional verification code, the procedure proceeds to S6. In S6, the permission signal is transmitted to the ECU 17 and the start of the engine (drive source) is permitted. Further, in the present embodiment, in S6, in addition to transmitting the permission signal to the ECU 17, the motor M is also driven to move the lock rod L to the unlock position when the lock rod L is in the lock position. In this way, the vehicle is allowed to travel.

On the other hand, when it is determined in S2 that the security mode is set, S3 to S6 following S2 are skipped. Therefore, the function of transmitting the access signal from unit 1 in the carrier is stopped. In addition, when it is determined in S5 that the verification code from the portable device 2 is not a conventional verification code, S6 is skipped. Therefore, the engine (drive source) cannot be started, and the lock by the lock rod L is not released.

According to the first and second embodiments, the safety mode can be set by a predetermined setting operation. In the safety mode, the function of transmitting the access signal by the unit 1 in the vehicle is stopped (the first embodiment) or by the The function of the portable device 2 to transmit the verification code (the second embodiment). In this way, illegal actions such as so-called repeater attacks can be reliably prevented just by stopping the transmission function. Furthermore, it is possible to improve the security effect while avoiding the complexities of signal processing. In addition, when both the function of transmitting the access signal by the unit 1 in the vehicle and the function of transmitting the verification code by the portable device 2 are stopped in the safe mode, the function of transmitting the access signal and the transmission of the verification code can be stopped The functions of both, and the safety effect can be further improved.

In addition, since the predetermined setting operation for setting the security mode is assembled by a specific operation of the access button 1a (operation unit) provided in the unit 1 in the vehicle, it is not necessary to provide a setting operation for setting the security mode. A separate new operation unit, and it is possible to suppress the increase in production cost. Furthermore, since the security mode can be set without the portable device 2, operability can be improved. Furthermore, when the predetermined setting operation for setting the security mode is configured by a specific operation of the operation button 2a (operation unit) provided in the portable device 2, the setting operation can be performed from a remote location , and the operability can be further improved.

Furthermore, when a predetermined release operation is performed on the operation button 2a (operation unit) provided in the portable device 2, the security mode can be released. Therefore, compared with the case where the release operation is performed on the access button 1a of the unit 1 in the carrier, it is possible to reliably prevent a third party from performing the release operation, and thus, the security effect can be further improved. Furthermore, when the safety mode can be released by performing a predetermined release operation on the access button 1a (operation unit) provided in the unit 1 in the carrier, it is not necessary to provide a separate new operation unit for releasing the safety mode, and there is An increase in production costs may be suppressed. In addition, since the safe mode can be released with the portable device 2 removed, operability can be improved.

In addition, according to the present embodiment, when the release operation is performed on the operation button 2a (operation unit) of the portable device 2, the safety mode can be released and the turn signal S of the vehicle can be flashed. Thus, the disengagement operation may serve as both an operation to disengage the safety mode and an operation to flash the vehicle's turn signal S to initiate an answer callback.

In addition, when the security mode is set, a random number code is generated and stored in the storage units (8, 15) of the unit 1 in the vehicle and the portable device 2, respectively. When the release operation is performed, the random digital code stored in the storage unit 15 of the portable device 2 is compared with the random digital code stored in the storage unit 8 of the unit 1 in the vehicle. Safe mode is only released when these random numbers match. Therefore, the security effect can be maintained by comparing the random number codes.

In addition, since the unit 1 in the vehicle according to the present embodiment has the anti-theft lock function of transmitting low frequency waves to the portable device 2 so that the portable device 2 generates electricity and transmits the verification code wirelessly using the generated electricity , so it is possible to smoothly deal with emergencies such as the exhaustion of the battery of the portable device 2 . In addition, the portable device 2, which may be the in-vehicle unit 1, includes an LED 2b (notification unit) capable of notifying that the security mode is set. Thus, when a passenger leaves the vehicle, the passenger can recognize and appreciate the set state of the safety mode. Meanwhile, the notification unit may be another display unit disposed in the carrier.

Although the present embodiment has been described above, the present invention is not limited thereto. For example, a predetermined setting operation for setting the safety mode or a predetermined releasing operation for releasing the safety mode may be performed on a carrier-side operation unit attached to the carrier. In this case, as shown in FIG. 9 , the switch M1 or the switch M2 disposed in the handle switch housing C attached to the handle H of the carrier can be used as the carrier-side operation unit. Meanwhile, reference numeral G in FIG. 9 indicates a holding handle that can be gripped by the driver.

The switch M1 is assembled by cross keys which can be pressed left, right, up and down. For example, security mode can be achieved by displaying a menu on a display unit (dashboard or separate LCD unit, etc.) provided in the vehicle and selecting from the menu by switch M1 and determining the security mode related item to set or cancel. In addition, the switch M2 is assembled by a depressable operation button. Security mode can be set or released by pressing this operation button.

In this way, when the predetermined setting operation for setting the safety mode or the predetermined releasing operation for releasing the safety mode can be performed on the carrier-side operation unit attached to the carrier, the operation can be performed at any position of the carrier. A predetermined setting operation for setting the security mode or a predetermined releasing operation for releasing the security mode, and thus, operability can be improved. In detail, since the carrier-side operation unit is disposed in the handle switch housing C attached to the handle H of the vehicle, it is possible to further improve the predetermined setting operation for setting the safety mode or the operation for releasing the safety mode. The operability of the scheduled release operation.

In addition, for example, when the determination unit 4 determines that the verification code is a normal verification code, only the operation of transmitting a permission signal to the ECU 17 to authorize the start of the engine (drive source) of the vehicle and moving the locking rod L to unlock can be performed position to allow the travel of the vehicle, instead of transmitting a permission signal to the ECU 17 as in the present embodiment to allow the start of the engine (drive source) of the vehicle and move the lock bar L to the unlocked position to An operation that allows the vehicle to travel.

In addition, when a release operation is performed on the operation button 2a of the portable device 2, the answer callback may not be activated or another function may be activated together with the release of the safety mode, instead of releasing the safety mode, turning the vehicle The signal flashes and the answer callback is activated. Furthermore, the immobilizer function may not be provided, or a notification unit such as the LED 2b may not be provided. Meanwhile, in this embodiment, the present invention is applied to a motorcycle. However, the present invention is applicable to other vehicles, such as ATVs, snowmobiles, construction machines, agricultural machines, and automobiles.

The wireless communication system may have another external appearance or may have another additional function, as long as it is possible to set a security mode by a predetermined setting operation, in which the function of transmitting the access signal by the unit in the vehicle is stopped Or the function of transmitting the verification code through the portable device.

According to an aspect of the present invention, there is provided a wireless communication system comprising: a unit in a carrier mounted on a carrier and including an operation unit arbitrarily operated by an occupant, the unit in a carrier capable of wirelessly transmits an access signal when the operating unit is operated; a portable device, which can be carried by the occupant, capable of wirelessly transmitting a vehicle-specific verification code on condition that the access signal is received and a determination unit capable of determining whether the verification code is a conventional verification code under a condition of receiving the verification code, wherein when the determination unit determines that the verification code is the conventional verification code, one of the vehicles is permitted The activation of the drive source, or the realization of the running of the vehicle, and one of the safety modes can be set by a predetermined setting operation. In the safety mode, a function of transmitting the access signal by the unit in the vehicle is stopped. Or a function of transmitting the verification code through the portable device.

According to an aspect of the present invention, a security mode can be set by a predetermined setting operation, in which the function of transmitting the access signal by the unit in the vehicle or transmitting the authentication by the portable device is stopped in the security mode code function. In this way, illegal actions such as so-called repeater attacks can be reliably prevented just by stopping the transmission function. Furthermore, it is possible to improve the security effect while avoiding the complexities of signal processing.

In secure mode, both the function of transmitting the access signal by the unit in the carrier or the function of transmitting the verification code by the portable device can be stopped.

In this case, in secure mode, both the function of transmitting the access signal by the unit in the carrier or the function of transmitting the verification code by the portable device are stopped. Therefore, both the function of transmitting the access signal and the function of transmitting the verification code are stopped, and the security effect can be further improved.

The predetermined setting operation may include a specific operation of the operation unit provided in the unit in the carrier.

In this case, since the predetermined setting operation is assembled by a specific operation of the operation unit provided in the unit in the vehicle, it is not necessary to provide a separate new operation unit for setting the security mode, and It is possible to suppress an increase in production cost. Furthermore, since the safe mode can be set without the portable device, operability can be improved.

The predetermined setting operation may include a specific operation on an operation unit provided in the portable device.

In this case, since the predetermined setting operation is configured by a specific operation on the operation unit provided in the portable device, the setting operation can be performed from a remote location, and the operability can be further improved.

The safety mode can be released when a specific release operation is performed on the operation unit provided in the unit in the carrier.

In this case, since the safety mode can be released by performing a predetermined release operation on the operation unit provided in the unit in the carrier, it is not necessary to provide a separate new operation unit for releasing the safety mode. Therefore, it is possible to suppress an increase in production cost, and workability can be improved.

The safe mode can be released when a specific release operation is performed on an operation unit provided in the portable device.

In this case, since the security mode can be released when a predetermined release operation is performed on the operation unit provided in the portable device, it is possible to reliably prevent a third party from performing the release operation, and thus, a security effect can be obtained Further improvement.

When the disabling operation is performed on the operating unit, the safety mode can be disengaged and a turn signal of the vehicle can be flashed.

In this case, when the release operation is performed on the operating unit, the safety mode may be released and the turn signal of the vehicle may flash. Thus, the disengagement operation may serve as both an operation to disengage the safety mode and an operation to flash the vehicle's turn signal to initiate an answer callback.

The predetermined setting operation for setting the safety mode or a predetermined releasing operation for releasing the safety mode may be performed on a carrier-side operation unit attached to the carrier.

In this case, since the predetermined setting operation for setting the security mode or the predetermined releasing operation for releasing the security mode can be performed on the carrier-side operation unit attached to the carrier, it can be performed at any position of the carrier A predetermined setting operation for setting the security mode or a predetermined releasing operation for releasing the security mode, and thus, the operability can be improved.

The carrier-side operating unit may be housed in a handle switch housing attached to a handle of the carrier.

In this case, since the carrier-side operating unit is disposed in the handle switch housing attached to the handle of the carrier, it is possible to further improve the predetermined setting operation for setting the safety mode or the predetermined setting for releasing the safety mode The operability of the deactivation operation.

When the security mode is set, a random number code can be generated and stored in a storage unit of the unit in the vehicle and a storage unit of the portable device, respectively, and when the release operation is performed, the storage unit can be stored The random number code in the storage unit of the portable device is compared with the random number code stored in the storage unit of the unit in the carrier, and the random number code is released only when the random number codes match Safe Mode.

In this case, when the security mode is set, the random numbers are generated and stored in the storage unit of the unit in the vehicle and the storage unit of the portable device, respectively. In addition, when the release operation is performed, the random digital code stored in the storage unit of the portable device is compared with the random digital code stored in the storage unit of the unit in the carrier. Safe mode is only released when these random numbers match. Therefore, the security effect can be maintained by comparing the random number codes.

The unit in the carrier may have an anti-theft lock function capable of transmitting a low frequency wave to the portable device so that the portable device generates electricity and transmits wirelessly using the generated electricity the verification code.

In this case, the unit in the vehicle has the anti-theft lock function, and the anti-theft lock function can transmit a low frequency wave to the portable device to cause the portable device to generate electricity and by the generated Power wirelessly transmits the verification code. Therefore, it is possible to smoothly cope with emergencies such as the exhaustion of the battery of the portable device.

The wireless communication system may further include a notification unit capable of notifying the presence or absence of the setting of the security mode or the occurrence of an error.

In this case, the wireless communication includes the notification unit capable of notifying the presence or absence of the setting of the security mode or the occurrence of an error. Therefore, it is possible to recognize and comprehend the presence or absence of the setting state of the security mode or the error.

The predetermined setting operation for setting the security mode may be enabled or disabled in advance.

In this case, the predetermined setting operation for setting the security mode may be enabled or disabled in advance. Therefore, it is possible to prevent the setting of the security mode due to wrong operation by deactivating the predetermined setting operation in advance.

1‧‧‧Unit in the vehicle 1a‧‧‧Access button L‧‧‧Lock bar 2‧‧‧Portable Devices 2a‧‧‧Operation buttons 2b‧‧‧LED 3. 14‧‧‧Control unit 4‧‧‧Judgment Unit 5‧‧‧Setting Unit 6‧‧‧Release unit 7‧‧‧Anti-theft lock control unit 8. 15‧‧‧Storage unit 9. D‧‧‧battery 10‧‧‧Power Control Driver 11‧‧‧Motor driver 12‧‧‧Low frequency driver 13‧‧‧High Frequency Driver 16‧‧‧Location Detection Sensor 17‧‧‧Engine Control Unit (ECU) 18‧‧‧Intelligent Power Device (IPD) 19‧‧‧Select Unit C‧‧‧Handle switch housing F1, G1‧‧‧Low Frequency Antenna F2, G2‧‧‧HF antenna G‧‧‧Keep the handle H‧‧‧handle M‧‧‧motor M1, M2‧‧‧Switch K‧‧‧coil S‧‧‧turn signal Steps S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, Sa, Sb, Sc‧‧‧

FIG. 1 is a conceptual diagram showing a wireless communication system according to a first embodiment of the present invention (shared with the second embodiment); FIG. 2 is a block diagram showing the wireless communication system; FIG. 3 is a flowchart showing the control in setting the security mode in the wireless communication system; FIG. 4 is a flowchart showing the control of verifying a verification code in the wireless communication system (shared with the second embodiment); FIG. 5 is a flowchart showing the control when releasing the security mode in the wireless communication system; 6 is a block diagram showing a wireless communication system according to a second embodiment of the present invention; FIG. 7 is a flowchart showing the control in setting the security mode in the wireless communication system; FIG. 8 is a flowchart showing the control when releasing the security mode in the wireless communication system; and FIG. 9 is a schematic diagram showing a vehicle-side operating unit in a wireless communication system according to another embodiment of the present invention.

1‧‧‧Unit in the vehicle

1a‧‧‧Access button

2‧‧‧Portable Devices

2a‧‧‧Operation buttons

2b‧‧‧LED

3. 14‧‧‧Control unit

4‧‧‧Judgment Unit

5‧‧‧Setting Unit

6‧‧‧Release unit

7‧‧‧Anti-theft lock control unit

8. 15‧‧‧Storage unit

9. D‧‧‧battery

10‧‧‧Power Control Driver

11‧‧‧Motor driver

12‧‧‧Low frequency driver

13‧‧‧High Frequency Driver

16‧‧‧Location Detection Sensor

17‧‧‧Engine Control Unit (ECU)

18‧‧‧Intelligent Power Device (IPD)

F1, G1‧‧‧Low Frequency Antenna

F2, G2‧‧‧HF antenna

K‧‧‧coil

M‧‧‧motor

S‧‧‧turn signal

Claims (13)

A wireless communication system comprising: a unit in a carrier mounted on a carrier and including a first operating unit arbitrarily operated by an occupant, the unit in a carrier being capable of being operated by the first operating unit In operation, wirelessly transmits an access signal; a portable device, which can be carried by the occupant, is capable of wirelessly transmitting a vehicle-specific verification code on a condition that the access signal is received, wherein the The portable device includes a second operation unit that can be arbitrarily operated by the occupant; and a determination unit capable of determining whether the verification code is a normal verification code under a condition that the verification code is received, wherein when the verification code is received When the determination unit determines that the verification code is the regular verification code, the activation of a driving source of the vehicle is permitted, or the operation of the vehicle is enabled, and a program in which a security mode is set is through the first operation unit or the second operating unit, and wherein in the safe mode, a function of transmitting the access signal by the unit in the carrier or a function of transmitting the verification code by the portable device stopped. The wireless communication system of claim 1, wherein, in the secure mode, both the function of transmitting the access signal by the unit in the carrier and the function of transmitting the verification code by the portable device are both are all stopped. The wireless communication system of claim 1 or 2, wherein the program for setting the security mode is provided by a unit in the vehicle The first operating unit is activated. The wireless communication system of claim 1 or 2, wherein the program for setting the security mode is activated by the second operation unit provided in the portable device. The wireless communication system of claim 1 or 2, wherein the security mode can be released when a specific release operation is performed on the first operating unit provided in the unit in the vehicle. The wireless communication system of claim 1 or 2, wherein when a specific release operation is performed on the second operation unit provided in the portable device, the security mode can be released. The wireless communication system of claim 6, wherein when the release operation is performed on the second operation unit, the safety mode can be released and a turn signal of the vehicle can be flashed. The wireless communication system of claim 1 or 2, wherein the program for setting the security mode or a predetermined release operation for releasing the security mode can be performed on the first operating unit attached to the vehicle. The wireless communication system of claim 8, wherein the first operating unit is disposed in a handle switch housing attached to a handle of the carrier. The wireless communication system of claim 5, wherein when the program for setting the security mode is activated, a random number code is generated and stored in a storage unit of the unit in the vehicle and one of the portable device, respectively in the storage unit, and When the release operation is performed, the random digital code stored in the storage unit of the portable device is compared with the random digital code stored in the storage unit of the unit in the carrier, and the Safe mode is only released when these random numbers match. The wireless communication system of claim 1 or 2, wherein the unit in the vehicle has an anti-theft lock function, and the anti-theft lock function can transmit a low frequency wave to the portable device to cause the portable device to generate power and wirelessly transmit the verification code using the power generated. The wireless communication system of claim 1 or 2, further comprising a notification unit capable of notifying the presence or absence of the setting of the security mode or the occurrence of an error. The wireless communication system of claim 1 or 2, wherein the program for setting the security mode can be enabled or disabled in advance.

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