KR20070060750A - Alarm system for bringing identification key and alarm method using the same - Google Patents

Abstract

An alarm system for informing carrying of an authentication key and an alarm method using the same are provided to prevent theft of a vehicle and driver's inconvenience by detecting that the authentication key is left in a vehicle room, in addition to a key insertion state. An alarm system for informing carrying of an authentication key(4) is composed of vehicle room sensing units(5,8) detecting whether a user gets on a vehicle(9) equipped with an immobilizer system having the authentication key and the authentication key is left in the vehicle or not, when the user tries to leave the vehicle; outside sensing units(1,3) detecting whether the user carries the authentication key or not, when the user gets off the vehicle; an alarm device(7) warning the user to carry the authentication key, according to the sensing result; and an authentication key alarm controller(6) progressing an authentication process through communication with the authentication key and controlling the alarm device to inform the user by judging whether the user carries the authentication key or not in getting off the vehicle, through the vehicle room sensing unit and the outside sensing unit.

Description

Alarm System For Bringing Identification Key And Alarm Method Using The Same}

1 is an exemplary diagram showing an example of an authentication key of a vehicle.

2 illustrates an example of an MSL.

Figure 3 is a block diagram showing an authentication key possession alarm system according to an embodiment of the present invention.

Figure 4 is a step showing an alarm method using the authentication key possession alarm system according to an embodiment of the present invention.

5 and 6 are flow charts illustrating the steps of FIG. 4 in more detail.

<Description of the symbols for the main parts of the drawings>

1: outside door antenna 2: indoor antenna

3: door lock 4: authentication key

5: MSL 6: Alarm Control Device

7: Alarm device 8: Seat pressure sensor

9: vehicle

The present invention relates to a security device of the vehicle and a method for maintaining security using the same. In particular, when the driver leaves the vehicle while leaving the FOB inside the vehicle, the driver is informed that the FOB is in the vehicle, and the FOB is carried by the vehicle. The present invention relates to an alarm system having an authentication key for preventing theft of a vehicle due to a loss of a key and inconvenience to a user, and an alarm method using the same.

Recent vehicles are becoming a necessity for modern people. Such a vehicle has not changed much in the past for the purpose of transporting passengers, but it is true that the vehicle is significantly different from the conventional one in terms of the value of the vehicle and the indoor environment. In other words, even though the latest vehicle is the same model due to the diversification of the price range and the installation equipment, the price and its performance and convenience have a lot of difference.

In addition, as the number of vehicles increases and the number of users expands, convenience is considered to be an essential requirement, and theft accidents are frequent and a countermeasure is required. The immobilizer system is developed and used for this purpose. The immobilizer system is a system that unlocks the steering wheel or transmission so that the vehicle can be used only when authentication is performed by an IC with an embedded authentication key (FOB).

In such an immobilizer system, when the user goes near the vehicle with the authentication key, the vehicle recognizes this and automatically switches to a state in which the vehicle door can be unlocked and started. In addition, even when the user starts to ride, start using a metal key that is separate from the authentication key (even if it is an integrated type, the metal key part and the FOB part are integrated), or turn the lever installed instead of the key to start it. Will bet.

As described above, the immobilizer system generally locks two functions of the MSL (Mechanical Steering Lock) and the transmission so that the vehicle cannot be used without the authentication key. Therefore, if the authentication key of the vehicle is lost, the vehicle cannot be started with the general metal key, thereby preventing theft of the vehicle. However, this also applies to the user as it is, the vehicle is not available in the case of extracting the authentication key.

1 is a diagram illustrating an example of an authentication key of a vehicle, and FIG. 2 is an example of an MSL. Referring to FIGS. 1 and 2, part A of FIG. 1 is a part called a transponder that stores a secret code for authentication and performs communication for authentication with the MSL. The MSL of FIG. 2 shows a possible example of a lever-type starting operation instead of a metal key. The MSL is equipped with a solenoid, that is, an antenna, which communicates with a transponder. The solenoid is connected to the Personal Identification Card System (PIC) to verify that the secret code sent from the transponder is the password of the authentication key authorized by the vehicle. The MSL is divided into 'OFF', 'ACC', 'IGN', and 'Start' according to the direction of rotation of the lever (or metal key). Will be used.

In general, a vehicle adopting such an immobilizer system, when a user possesses an authentication key and approaches the vehicle, the vehicle is unlocked and the user boards. At this time, it has already been mentioned that the vehicle is switched to a state capable of starting at the same time as the vehicle is unlocked. That is, when the authentication key approaches the vehicle, communication with the vehicle's PIC system is performed to release the lock of the MSL so that the lever can be operated.

On the other hand, when the user leaves the authentication key in the vehicle while keeping the lever in the starting or running position while the vehicle is in use, an alarm method for notifying that the user has left the authentication key in the vehicle has existed since the use of the existing metal key. That is, when the user gets off the vehicle with the lever's direction other than 'OFF' or when the user simply opens the driver's side door, an alarm is generated to warn the user that the lever is in the starting or driving position.

On the other hand, in the 'OFF' state, when the user opens the car door, the alarm sounds, but the conventional vehicle is difficult to recognize the user because the same alarm sounds for the door of the person getting on and off. In addition, while a conventional car provides an alarm for opening and closing of a car door, there is a blind spot that an alarm for neglecting an authentication key is not made. In particular, in the 'OFF' state, the user often ends and lowers the operation of the vehicle, and since the PIC system automatically switches the vehicle to the locked state, it is very rare to check whether the authentication key is possessed when getting off. For this reason, the vehicle does not switch to the locked state, which causes frequent vehicle theft. For this reason, it is necessary to supplement the method of enabling the user to actively hold the authentication key when getting off.

Accordingly, an object of the present invention is to carry the FOB to the driver to inform the driver that the FOB is in the vehicle when the driver leaves the FOB in the vehicle interior, and theft of the vehicle due to the loss of the vehicle and the authentication key, The present invention provides an alarm system having an authentication key and an alarm method using the same to prevent inconvenience.

In order to achieve the above object, the authentication key possession alarm system according to the present invention is a vehicle equipped with an immobilizer system having an authentication key, or whether the user is present in the vehicle when the vehicle attempts to leave the vehicle. An indoor sensing unit for sensing, an outdoor sensing unit for detecting whether the authentication key is present when the user gets off, an alarm device for warning the user to carry the authentication key according to the detection result, and the authentication key An authentication key alarm control device for performing an authentication process through communication, and determining whether the authentication key is possessed by the indoor and outdoor detection units when the user gets off the vehicle, and controls the alarm device to notify the user. Equipped.

The alarm method using the authentication key possession alarm system according to the present invention is an indoor / outdoor detection unit, an alarm device, and an authentication key alarm control device for determining whether the authentication key is carried on or off of the vehicle equipped with the immobilizer system having the authentication key. In the alarm method using the authentication key possession alarm system having a pressure sensing step of detecting the pressure of the seat of the vehicle to determine whether the user boarding, the vehicle entry / entry of the authentication key according to the boarding The authentication key search step for determining whether the departure, the possession determination step of determining whether the user possesses the authentication key according to whether the user boarding and the authentication key search and the authentication to the user according to the possession determination result And an alarm generation step to warn of possession of a key.

Other features and operations of the present invention in addition to the above objects will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 3 to 6.

3 is a block diagram showing an authentication key possession alarm system according to an embodiment of the present invention.

Referring to Figure 3, the authentication key possession alarm system according to an embodiment of the present invention authentication key (4), indoor detection unit (2, 5, 8), outdoor detection unit (1, 3), alarm device (7) And an alarm control device 6.

The indoor sensing units 2, 5, and 8 detect whether the user has boarded the vehicle equipped with the immobilizer system using the authentication key 4, or when the user leaves the vehicle 9 after the boarding, Detect whether or not possessing 4). That is, when the user approaches the vehicle 9, opens the car door and enters the interior, the indoor detection units 2, 5, and 8 detect the user's entry into the vehicle. To this end, the indoor sensing units 2, 5, and 8 have an indoor antenna 2, a seat pressure sensor 8 and an MSL 5.

The indoor antenna (2) receives the response signal from the indoor transmission antenna (2a) for transmitting a scan signal for detecting the authentication key (4) existing in the room and the authentication key (4) generated according to the scan signal. It consists of a receiving antenna 2b. In particular, since the propagation area of the indoor antenna 2 is limited to the room, the scan area overlap with the outside door antenna 1 hardly occurs.

The seat pressure sensor 8 is provided in an indoor seat in the vehicle 9 including the driver's seat or the driver's seat, and measures the pressure according to the user's seating / cushing and detects the user's boarding.

The MSL (or keyset 5) is provided with a solenoid antenna for communication with the transponder of the authentication key 4 as described above, and receives the secret code transmitted by the transponder and transmits it to the alarm control apparatus 6. . In addition, when the authentication is finished, the MSL 5 releases the striking lock and the transmission lock so that the user can use the vehicle 9.

The outdoor detectors 1 and 3 detect whether the user's vehicle 9 is removed or the user's authentication key 4 has left the vehicle 9. To this end, the outdoor sensing units 1 and 3 include a door lock sensor 3 and an outside door antenna 1.

The door lock sensor 3 detects the opening and closing of the car door and provides the alarm control device 6 with the possibility of movement of the user. The door lock sensor 3 can detect the opening and closing of the car door, but since it is difficult to determine whether the user has actually moved out of the vehicle 9, the door lock sensor 3 can cooperate with the seat pressure sensor 8 or the interior antenna 2. Check if the departure of.

The outside door antenna 1 determines whether the authentication key 4 carried by the user is present when the user uses the vehicle 9 and receives an alarm by receiving a secret code for authentication of the authentication key 4 possessed by the user. It transmits to the control apparatus 6. That is, the outside door antenna 1 receives the secret code by communicating with the transponder of the authentication key 4 when the user with the authentication key 4 enters the reception radius. The outside door antenna 1 transmits the received secret code to the alarm control device 6 to confirm the secret code. Accordingly, the alarm control device 6 confirms the secret code, and releases the door lock and the security alarm of the vehicle in the case of a suitable authentication key 4.

The alarm device 7 generates an alarm for requesting possession of the authentication key 4 from the user under the control of the alarm control device 6. To this end, the alarm device 7 includes an indoor alarm device such as a buzzer for propagating an alarm in a vehicle interior, and an outdoor alarm device such as a horn for propagating an alarm in an outdoor of the vehicle.

The alarm control device 6 receives and analyzes the detection results of the indoor detection units 2, 5, 8 and the outdoor detection units 1, 3, and accordingly detects whether the authentication key 4 exists in the vehicle interior. It generates a scan command signal for the indoor sensing unit. In addition, the alarm control apparatus 6 sets / cancels the door lock and the security alarm of the vehicle according to the approach / departure of the vehicle according to the detection result from the outdoor detection units 1 and 3. In particular, the alarm control device 6 notifies the user of the authentication key 4 through the alarm device 7 when the user leaves the vehicle without carrying the authentication key 4 as a result of the analysis. To this end, the alarm control device 6 includes a PIC system and an ETACS (Electronic Time And Alarm Control System) system.

4 is a flowchart illustrating an alarm method using an authentication key possession alarm system according to an exemplary embodiment of the present invention.

4, the alarm method using the authentication key possession alarm system according to the present invention includes a pressure detection step (S1), authentication key search step (S2), possession determination step (S3) and alarm generation step (S4). It is configured by. In addition, the alarm method illustrated in FIG. 4 is not described in order, and a detailed description thereof will be described with reference to the drawings subsequent to FIG. 5.

Pressure detection step (S1) is a step of detecting the seat attachment / detachment of the user by the seat pressure sensor (8).

Authentication key search step (S2) is to search the authentication key (4) in the vehicle (9) room to check whether the authentication key (4) is present in the room when the seat pressure sensor (8) or the door opening of the vehicle occurs And a step in which the user approaches the vehicle to use the vehicle and confirms the presence or absence of the authentication key 4.

The possession determination step S3 is a step of determining whether the user carries the authentication key 4 when the user leaves the interior of the vehicle 9 and is detected through the pressure detection step S1 and the authentication key search step S2. Judging from the results.

Finally, the alarm generating step (S4) is the authentication key (4) to the user by using the internal and external alarm generating device, when the user leaves the vehicle without having the authentication result authentication key (4) of the possession determination step (S3) Will remain in the vehicle.

5 and 6 are flow charts illustrating the steps of FIG. 4 in more detail.

5 and 6, in step S10, the user boards to use the vehicle, and proceeds to the operation, such as driving. At this time, the lock applied to the steering and transmission by the MSL is released, and the seat pressure sensor detects the user's seat and notifies the alarm control device. The user then switches the key or lever of the MSL to the 'OFF' position.

In step S20, the door of the vehicle is opened by the user. At this time, the door opening is detected by the door lock sensor and transmitted to the alarm control device.

In step S30, according to the door open detection, the alarm control device detects whether the seat pressure of the user seated. At this time, it is determined that the user is sitting on the seat, that is, if pressure is detected, the user's departure is continuously detected while the door is opened. This step S30 is included in the pressure sensing step S1 described above.

On the other hand, if it is determined that the user is absent because the pressure is not detected, in step S40 the alarm control device controls the indoor detection unit, to search for the presence of the authentication key in the vehicle. This step S40 is included in the authentication key retrieval step S2.

If the authentication key does not respond as a result of the authentication key search, it is determined in step S50 that the user has left the vehicle with the authentication key, and does not sound an alarm.

However, if the authentication key responds to the search, it is determined that the vehicle has left without the user authentication key, and in step S60, the alarm control device generates an internal alarm by controlling the alarm generating device. Warning to carry.

In operation S70, the alarm control apparatus continuously determines whether the car door is closed while the internal alarm is generated, that is, while the authentication key is present inside the vehicle.

When the car door opened while the internal alarm is closed, the alarm control device in step S80 uses the indoor sensing unit to search whether the authentication key is still left inside the vehicle.

In step S90, if the authentication key does not respond according to the re-search of the authentication key, in step S95 it is determined that the user has the authentication key to release the alarm.

On the other hand, if the authentication key responds, in step S100 to detect whether the user is seated again through the seat pressure sensor to detect the pressure of the seat. When the pressure is sensed in step S100, the alarm is released through step S95.

However, if the pressure is not detected, in order to determine whether the user uses an authentication key other than the authentication key inside the vehicle, the authentication key existing outside the vehicle is searched for in step S110.

If a response occurs from the search result authentication key in step S110, it is determined whether the vehicle lock signal is received in step S130. At this time, if the lock signal of the vehicle is not received, the vehicle continuously waits to receive the lock signal.

When the vehicle lock signal is received in step S130, in step S140, the secret code of the authentication key that transmitted the vehicle lock signal is checked to discriminate whether the secret code corresponds to the vehicle.

Subsequently, in operation S150, the function of the authentication key in the vehicle interior is invalidated, the vehicle is locked according to the vehicle fund signal, and the external alarm is released.

On the other hand, if there is no response to the authentication key in step S120, it is determined in step S135 that the user has left the vehicle and is outside the vehicle, and determines that the user does not have an authentication key other than the authentication key existing in the room, and releases the internal alarm. . The alarm control device operates an external alarm device to generate an external alarm using a horn of the vehicle.

In step S145, when the vehicle lock signal is received by the remote controller or the like in addition to the authentication key, in step S165, the external alarm is released and the vehicle is switched to the locked state.

On the other hand, if the vehicle lock signal is not received in step S145, after the external alarm occurs for a predetermined time through step S155 to release the external alarm through step S165.

As described above, the authentication key possession alarm system and the alarm method using the same according to the present invention, when the driver leaves the vehicle in the interior of the FOB, if the driver tells the driver that the FOB is in the vehicle to carry the FOB, And it is possible to prevent theft of the vehicle due to the loss of the authentication key, inconvenience to the user.

The authentication key possession alarm system and the alarm method using the same according to the present invention not only detect a key insertion state as in the related art, but also detect that the authentication key exists in the vehicle interior, and thus the user does not use the existing key. It is possible to awaken possession of an authentication key that can be used.

The authentication key possession alarm system and the alarm method using the same according to the present invention can prevent accidents of leaving the authentication key inside the vehicle by adding a simple device and logic to the existing immobilizer system, thereby reducing the cost of manufacturing the vehicle. The alarm system can be implemented without rising, and it is possible to minimize the cost and time loss due to the re-issuance of the authentication key.

The authentication key possession alarm system and the alarm method using the same according to the present invention are applicable to the above-described alarm method, it is possible to determine whether the passenger boarding, whether or not the possession of the authentication key of the passenger, etc., thereby more accurately holding the user's authentication key You can determine whether or not to inform the user.

Claims (14)

An indoor sensing unit configured to detect whether the user is in a vehicle having an immobilizer system having an authentication key or whether the authentication key is present in the vehicle when the user attempts to leave the vehicle; An outdoor detector for detecting whether the user has the authentication key when getting off the user; An alarm device for alerting the user to possess the authentication key according to the detection result; And An authentication process is performed through communication with the authentication key, and an indoor and outdoor detection unit determines whether the user has the authentication key when getting off the vehicle, and controls the alarm device to notify the user. Authentication key possession alarm system comprising a key alarm control device. The method of claim 1, The indoor detection unit, An indoor antenna for detecting whether the authentication key exists in the vehicle; Seat pressure sensor for detecting the user's boarding or getting off and And a key set for allowing the authentication key alarm control device to perform the authentication process through the communication with the authentication key. The method of claim 1, And the outdoor sensing unit includes an outside handle antenna for determining an external presence of the authentication key. The method according to claim 1 or 2, The authentication key alarm control device, An authentication device for determining whether to lock / unlock the vehicle or start the vehicle according to a detection result of the indoor / outdoor detection unit; And an electronic time alarm control device for controlling the operation of the alarm device according to the control from the authentication device or for locking / releasing the vehicle. An alarm method using an authentication key possession alarm system comprising an indoor / outdoor detection unit, an alarm device, and an authentication key alarm control device for determining whether the authentication key is carried on or off of a vehicle equipped with an immobilizer system having an authentication key. , A pressure sensing step of sensing a pressure of a seat of the vehicle to determine whether the user is boarded; An authentication key searching step for determining whether the authentication key enters or leaves the vehicle according to whether the boarding is performed; A possession determination step of determining whether the user possesses the authentication key according to whether the user boards the vehicle and whether the authentication key is searched; And an alarm generating step of warning the user of possession of the authentication key according to the possession determination result. The method of claim 5, wherein the pressure sensing step, And after the user boards the vehicle, detecting the door opening of the vehicle. The method of claim 5 or 6, wherein the authentication key retrieval step, If the pressure is not detected by the user as a result of the pressure detection, performing the authentication key search step, And an internal alarm generation step of generating an alarm in the vehicle by using the alarm device when the authentication key is searched in the vehicle as a result of performing the authentication key searching step. Alarm method using the system. The method of claim 7, wherein the authentication key retrieval step, After the door is opened, if the car door is closed again, the alarm method using the authentication key possession alarm system, characterized in that it further comprises the step of re-searching the authentication key to re-examine whether the authentication key exists in the vehicle. The method of claim 8, wherein the pressure sensing step, And a pressure re-searching step of re-searching the pressure applied to the seat when the authentication key is present in the vehicle as a result of the search of the authentication-key re-searching step. The method according to claim 8 or 9, The authentication key rescanning step, If it is determined that the authentication key does not exist in the vehicle, the alarm method using the authentication key possession alarm system, characterized in that to stop the internal alarm. The method of claim 9, wherein the authentication key retrieval step, When the pressure applied to the seat, as a result of the pressure re-search, the alarm method using the authentication key possession alarm system, characterized in that it further comprises an external sensing step of detecting whether the authentication key exists outside the vehicle. The method of claim 11, wherein the alarm generating step As a result of the external detection, if there is no response of the authentication key, the authentication key possession alarm further comprising the step of releasing the internal alarm, and generates an external alarm using the external alarm device of the alarm device. Alarm method using the system. The method of claim 12, wherein the external alarm generating step, An external alarm releasing step of releasing the external alarm when the vehicle door lock signal is received; Alarm method using the authentication key possession alarm system, characterized in that it further comprises the step of terminating the external alarm after maintaining the external alarm. The method of claim 11, wherein the external sensing step, Re-authentication step of authenticating the external authentication key for providing the lock signal, when receiving the lock signal of the vehicle door, An invalidation step of invalidating a function of an authentication key existing in the vehicle according to the re-authentication; Alarm method using the authentication key possession alarm system, characterized in that it comprises a step of releasing the external alarm to release the external alarm.

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