JP2002269663A - Security system for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately and speedily perform recognition processing of a proper vehicle user to improve the security property against theft of a vehicle, suppress cost, and extend and add a function easily. SOLUTION: A Bluetooth interface part 4 forms a radio link with a cellular phone 5 in which Bluetooth address is stored. The Bluetooth address stored in the cellular phone 5 owned by the proper vehicle user each is registered in a storage circuit 3 in advance. A control circuit 2 performs the connection operation of the radio link with the cellular phone 5 through the Bluetooth interface part 4 while an ignition switch 6 is on and the retrieval operation of the Bluetooth address stored in the cellular phone 5, outputs an alarm signal if it cannot retrieve the Bluetooth address registered in the storage circuit 3 to operate a horn drive circuit 11, and inhibits the start of an engine by an engine ECU(electronic control unit) 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle security system realized by using a portable communication terminal.

[0002]

2. Description of the Related Art In the technology related to the prevention of vehicle theft, one point is how to identify the owner of the vehicle. As means for specifying the owner of the vehicle, conventionally, for example, Japanese Patent Laid-Open No. 11-29864
As disclosed in Japanese Patent Publication No. 0, the fingerprint data for recognizing the owner of the vehicle (and the vehicle user recognized by the owner) is registered, and the fingerprint data read by the fingerprint sensor mounted on the vehicle is registered. A system has been considered in which a warning signal is generated and transmitted to a communication terminal device of the vehicle owner when the engine of the vehicle is started in a state in which the registered fingerprint data does not match.

[0003]

However, in the above-mentioned conventional configuration, although there is an advantage that the owner of the vehicle can be reliably specified, there is a disadvantage that a dedicated device such as a fingerprint sensor is required and the cost becomes high. However, there is also a problem that sophisticated software processing is required for the recognition of the vehicle owner, and the recognition processing requires a relatively long time.
Furthermore, in the device of the conventional configuration, since a dedicated fingerprint sensor is installed, it is difficult to expand or add a function after the installation, and there is a problem that the expandability of the system is limited.

The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the security against theft of a vehicle by enabling proper and prompt recognition of a vehicle user. It is an object of the present invention to provide a vehicle security system which can be realized and has effects such as easy control of cost and expansion and addition of functions.

[0005]

To achieve the above object, the system configuration described in claim 1 can be adopted. According to this system, the storage means stores the ID information stored in the portable communication terminals owned by the owner of the vehicle and the vehicle users permitted by the owner (hereinafter, these are referred to as proper vehicle users). Is registered. On the other hand, when the vehicular main power supply is turned on, the control unit performs a connection operation of a short-range wireless link with the portable communication terminal through the communication interface unit and a search operation of the ID information stored in the portable communication terminal. Execute As a result of such a search operation, when the ID information registered in the storage means cannot be searched, the control means performs an operation of outputting an alarm signal. When a proper vehicle user having the portable communication terminal on which the above is performed turns on the main power supply for the vehicle, the ID information registered in the storage means exists in the search result. No alarm signal is output.

Accordingly, an alarm signal is output only when a third person other than an appropriate user turns on the vehicle main power supply, and it is possible to deal with vehicle theft based on the alarm signal. In this case, an appropriate vehicle user recognition process can be easily performed only by comparing the search result of the ID information with the ID information in the storage means, so that the recognition process can be performed accurately and promptly. As a result, the security against theft of the vehicle can be improved. Further, as a communication interface unit necessary for realizing the above-mentioned system, a low-cost one such as a Bluetooth interface can be used, and the functions of storage means and control means required for the system can be used. Can be obtained by using a microcomputer (for example, a computer for ECU) originally mounted on a general vehicle, so that existing hardware resources can be effectively used, thereby achieving cost reduction. . Further, since it is not necessary to use a special device, the function of the system can be easily extended and added.

According to a second aspect of the present invention, when an alarm signal is output, a portable communication terminal storing ID information corresponding to specific ID information in the storage means, that is, a proper user, The alarm information is transmitted to the portable communication terminal possessed through a vehicle-mounted communication terminal capable of long-distance communication. Therefore, if the ID information of the portable communication terminal owned by the owner of the vehicle is registered as the specific ID information, the owner can quickly cope with the occurrence of an abnormality in the vehicle based on the alarm information. It becomes possible.

[0008] According to the system configuration of the third aspect, the portable communication terminal to which the alarm information is transmitted is:
Since the position signal indicating the current position of the vehicle can be transmitted through the in-vehicle communication terminal, the user who has received the alarm information at the mobile communication terminal can grasp the current position of the vehicle in real time.

According to the system configuration of the present invention, if the control signal is transmitted from the portable communication terminal that has received the alarm information to the vehicle-mounted communication terminal that has transmitted the alarm information, for example, A driving prohibition control that switches a vehicle equipped with a communication terminal to a non-traveling state on condition that the vehicle is stopped, or an alarm that continuously operates an alarm device provided to issue an alarm that can be easily confirmed outside. Since at least one of the output controls is executed, it is possible to provide flexibility in a measure to be taken when an alarm signal is generated.

According to the fifth aspect of the present invention, when the vehicle lock mechanism is unlocked while the vehicle main power supply is off, the control means controls the short-range wireless communication with the portable communication terminal. A link connection operation and an operation of searching for the ID information stored in the mobile communication terminal are performed. As a result, when the ID information registered in the storage unit cannot be searched, that is, when an appropriate When there is no user, the locking operation of the vehicle door lock mechanism is performed through the locking / unlocking device. Therefore, even if the vehicle door lock mechanism is forgotten to be locked, the locking can be performed automatically, thereby improving the security against theft or vandalism of the vehicle.

According to the system configuration of the present invention, when a confirmation request signal is transmitted from a portable communication terminal in which ID information matching the stored ID information in the storage means is stored, the confirmation request signal is received through the on-vehicle communication terminal. Control means
Since the status signal indicating whether or not the vehicle door lock mechanism is locked is answered to the mobile communication terminal via the on-vehicle communication terminal, an appropriate user having the mobile communication terminal can use the vehicle door lock mechanism. Can be easily checked from a remote place. Then, if the locking of the vehicle door lock mechanism is forgotten as a result of the confirmation, a locking command signal is transmitted from the mobile communication terminal, and the control means receiving the locking command signal locks the vehicle door locking mechanism through the locking / unlocking device. As a result, the security against theft or vandalism of the vehicle can be improved, and it becomes very convenient in actual use.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows the electrical configuration of the entire system by combining functional blocks. In FIG. 1, an anti-theft unit 1 mounted on a vehicle includes a control circuit 2 (corresponding to control means) constituted by a microcomputer, for example, EEPR.
The storage circuit 3 (corresponding to storage means), which is composed of a rewritable nonvolatile memory such as an OM, and the Bluetooth interface unit 4 (corresponding to a communication interface unit) are connected by a bus line. The control circuit 2 can be configured using a CPU provided in a body ECU or the like mounted on the vehicle.

The Bluetooth interface unit 4 is a bidirectional short-range wireless link (ACL (Asynchronous Connection-Less)) between the control circuit 2 and a portable telephone 5 (corresponding to a portable communication terminal) equipped with a Bluetooth interface.
In this case, a network (Piconet) in which the control circuit 2 is a “master” and the mobile phone 5 is a “slave” is formed. In this embodiment, the pairing for connection authentication between the control circuit 2 and the mobile phone 5 is completed (the PIN (Personal Identification Number) code need not be input).

On the input port side of the control circuit 2, a switching signal from an ignition switch 6 for turning on / off a vehicle main power supply, a switching signal from a door switch 7 which is turned on when the vehicle door is opened, a vehicle window A detection signal from a vibration sensor 8 for detecting the vibration of a predetermined portion such as glass, a vehicle position signal from a GPS receiver 9 (corresponding to a position detecting means) for measuring the current position of the vehicle, a vehicle door lock. The detection signal from the door lock detection unit 10 for detecting the locked state of the mechanism is input. Although not shown, on the input port side of the control circuit 2, in addition to the above signals, a signal indicating that a door lock operation or a door unlock operation has been performed through a door lock knob, a vehicle speed signal, or the like. Is input. When the vehicle is equipped with a car navigation device having a GPS receiving function, the GPS receiver 9 can be omitted.

On the output port side of the control circuit 2, a horn drive circuit 11 for driving (sounding) a vehicle horn (corresponding to an alarm device) (not shown), an engine ECU 12, and an automobile telephone 13 (corresponding to a vehicle-mounted communication terminal) A locking and unlocking device 14 for performing a locking operation and an unlocking operation of a vehicle door lock mechanism (not shown) is connected. It should be noted that it is also possible to adopt a configuration in which a piconet is formed between these components and the control circuit 2 by mounting a Bluetooth interface on the GPS receiver 9, the mobile phone 13, and the like.

In the above-described configuration, the storage circuit 3 stores the data in the portable telephones 5 owned by the owner of the vehicle and the vehicle users permitted by the owner (hereinafter, these are referred to as appropriate vehicle users). One or more types of registered Bluetooth addresses (BD_ADDR) (corresponding to ID information in the present invention) are registered in advance.

FIG. 2 shows the contents of the processing routine related to the gist of the present invention among the contents of the control processing by the control circuit 2, which will be described below. That is, the processing routine of FIG. 2 is executed, for example, when the ignition switch 6 is switched from the ON state to the OFF state.
A luetooth address (BD_ADDR) is read (step A1), and the Bluetooth address read as described above is searched through the Bluetooth interface unit 4 (step A2).

Such a search step A2 is performed until a vehicle user (vehicle driver) performs a door lock operation using a door lock knob (not shown) or a predetermined time (T seconds) without performing the door lock operation. ) Elapses or until a Bluetooth address matching the search target Bluetooth address is searched (steps A3, A4, A5).

When the Bluetooth address read in step A1 is found ("YES" in A5), the process returns to step A2 after executing step A6 of waiting for a predetermined time. Therefore, in a state where an appropriate vehicle user carrying the mobile phone 5 exists within the communication range through the Bluetooth interface unit 4, the operation of searching for a Bluetooth address is repeated at a predetermined cycle.

On the other hand, Bluetoo read in step A1
When the door lock operation is performed in a state where the th address has not been searched, or when T seconds have elapsed without performing the door lock operation, the vehicle door lock mechanism is locked through the locking and unlocking device 14 (step A7) Activate the anti-theft mode accordingly (step A)
8). When the anti-theft mode is activated as described above, the state that the signals from the ignition switch 6, the vibration sensor 8, and the GPS receiver 9 are monitored is exhibited. When the anti-theft mode is activated as described above, for example, an indicator (for example, a light emitting diode) for notifying the outside that the anti-theft mode is operating is blinked to notify the vehicle user, It is also possible to adopt a configuration in which a third party checks for illegal acts on the vehicle.

In the state where the anti-theft mode is activated as described above, a step A9 for judging whether or not an abnormality has occurred in the detection output from the vibration sensor 8, and judging whether or not the door switch 7 is turned on. Step A10 and step A11 for determining whether or not the ignition switch 6 is turned on are repeatedly executed.

When an abnormality occurs in the detection output from the vibration sensor 8 (when a predetermined portion such as a vehicle window glass abnormally vibrates), the process immediately proceeds to an abnormality countermeasure processing routine A16 to be described later. When the door switch 7 is turned on (when the vehicle door is opened) and when the ignition switch 6 is turned on (when the vehicle main power is turned on), the Bluetooth interface unit 4 is used. Blu loaded in step A1
A search for an etooth address is started (step A12).

In this search step A12, the search target B
The process is executed until a Bluetooth address that matches the luetooth address is searched or until a predetermined time (t seconds) elapses (steps A13 and A14). When the Bluetooth address read in step A1 is searched, theft is performed. After executing step A15 for canceling the prevention mode, the process returns. In contrast, the same Blu
When t seconds have elapsed without the search for the etooth address, the process proceeds to the abnormality countermeasure processing routine A16.

In the abnormality countermeasure processing routine A16, an alarm signal is generated. In response to the generation of the alarm signal, for example, the following countermeasures for an abnormal situation are executed. An abnormality notification operation for driving the vehicle horn continuously or intermittently through the horn drive circuit 11, an operation prohibition operation for switching the ignition switch 6 to a locked state inoperable through a lock mechanism (not shown), or a prohibition of engine start for the engine ECU 12. Start prohibition operation giving a command, Bluetoo matching a specific Bluetooth address in the storage circuit 3 (for example, one corresponding to the owner of the vehicle)
an information transmitting operation of transmitting alarm information through the mobile telephone 13 to the mobile telephone 5 in which the th address is stored. The alarm information includes, for example, a message (voice data and character data) for notifying that an abnormality has occurred on the vehicle side, and a vehicle position signal indicating the current position of the vehicle acquired from the GPS receiver 9. The mobile phone 5 is provided with a function of displaying the current position of the vehicle in a form that can be easily recognized based on the vehicle position signal.

In short, the present embodiment has a short-range communication function through the Bluetooth interface
And a function of organically combining with a long-distance communication function through the mobile telephone 13. As a result, the following operations and effects are achieved. That is, in activating the system of the present embodiment, the storage circuit 3 of the anti-theft unit 1 stores, in the storage circuit 3, a portable vehicle (owner of the vehicle and a vehicle user authorized by the owner), respectively. At least one type of Bluetooth address stored in the telephone 5 is registered in advance. From such a state, the ignition switch 6
Is switched from on to off, Blu
The Bluetooth address is searched through the etooth interface unit 4, and within a predetermined time (T seconds), the Bluetooth address is registered.
When the ooth address cannot be retrieved, the vehicle door dock mechanism is automatically locked by the locking / unlocking device 14. Therefore, even if a proper vehicle user forgets to lock the vehicle door dock mechanism and gets off the vehicle, the security against theft or vandalism of the vehicle is improved.

When the vehicle door lock mechanism is locked, the anti-theft mode is activated in the anti-theft unit 1. When a predetermined portion such as a vehicle window glass vibrates abnormally from such a state, an alarm signal is output and a countermeasure operation for the abnormal situation is immediately performed (the above-described operation).
, The operations described in (1) and (2) are executed. Also, if the vehicle door is opened or the vehicle main power is turned on while the anti-theft mode is activated,
A search for a Bluetooth address is performed through the Bluetooth interface unit 4, and the storage circuit 3 is searched for within a predetermined time (t seconds).
When the Bluetooth address registered in the device cannot be searched, an alarm signal is output in response to the search and the action for the abnormal situation is performed. Therefore, when the vehicle door lock mechanism is locked, illegal operations such as breaking of the vehicle window glass, the vehicle door is opened by a third party, or the vehicle main power is turned on. When this is done, an alarm signal is output and various countermeasures against abnormal situations are executed, thereby improving security against theft or vandalism of the vehicle. When an appropriate vehicle user opens the vehicle door and turns on the rear vehicle main power supply, the mobile phone 5 held by the vehicle user within a predetermined time (t seconds) is turned on.
Since the Bluetooth address is searched and matches the registered Bluetooth address, the anti-theft mode is released accordingly, and the alarm signal is not output.

In this case, a proper vehicle user recognition process can be easily performed simply by comparing the search result of the Bluetooth address with the Bluetooth address registered in the storage circuit 3, so that the recognition process can be performed accurately and accurately. It is possible to perform the operation promptly, thereby improving the security against theft of the vehicle and vandalism on the vehicle. Further, in this embodiment, a low-cost supplied interface such as the Bluetooth interface 4 is used as a communication interface unit necessary for realizing the vehicle security system. The functions of the circuit 2 and the storage circuit 3 can also be obtained by using a microcomputer (for example, an ECU computer) originally mounted on a general vehicle, so that existing hardware resources can be effectively used. As a result, cost reduction can be realized. Further, since it is not necessary to use a special device such as a conventional fingerprint sensor, the function of the system can be easily extended and added. That is, only basic functions (for example, a function of transmitting simple alarm information to the mobile phone 5 or a function of driving a vehicle horn when an alarm signal is generated) are set, and other functions as described in the embodiment are set. With regard to this function, it is possible to construct a system having expandability to be added later, which is extremely useful in practical use.

In this embodiment, when the alarm signal is output, the alarm information is transmitted to the portable telephone 5 carried by the appropriate user through the automobile telephone 13, so that the alarm information is received. The vehicle user carrying the mobile phone 5 can quickly cope with the occurrence of an abnormality in the vehicle based on the alarm information. In this case, since the alarm information includes the vehicle position signal indicating the current position of the vehicle, the user who has received the alarm information with the mobile phone 5 can grasp the current position of the vehicle in real time. In other words, it becomes possible to appropriately deal with vehicle theft.

(Other Embodiments) The present invention is not limited to the above-described embodiment, but can be modified or expanded as follows. In the above embodiment, the abnormality notification operation for driving the horn for the vehicle in response to the generation of the warning signal, the operation prohibition operation or the start prohibition operation for prohibiting the start of the engine (that is, the running of the vehicle), and the alarm information for the mobile phone 5 Was configured to perform the information transmission operation of transmitting
First, only the operation of transmitting the alarm information may be performed, and the abnormality notification operation and the operation prohibition operation or the start prohibition operation may be performed based on a proper judgment by the vehicle user who has received the alarm information. Specifically, the control signal can be answered back from the mobile phone 5 that has received the alarm information to the mobile phone 13 that has transmitted the alarm signal, and the control circuit 2 sends the control signal to the mobile phone 13. When the control signal is received, on the condition that the vehicle is stopped, for example, the engine ECU 12 stops the engine of the vehicle and switches to a traveling disabled state to switch to a traveling disabled state,
Alternatively, it is conceivable to adopt a configuration in which a function of executing one or both of the alarm output controls for continuously operating the vehicle horn is provided. In such a configuration,
When an abnormal situation occurs on the vehicle side, the vehicle user side receiving the alarm information transmitted therewith judges the situation, and based on the judgment result, selectively selects the above-mentioned travel inhibition control or alarm output control. Since it can be executed, it is possible to have flexibility in dealing with vehicle theft and vandalism.

Further, in the anti-theft unit 1 configured as shown in FIG. 1, a door lock control routine as shown in FIG. 3 is incorporated as a background processing routine into the control processing by the control circuit 2, for example. The contents are described below together with the related operation. In the case of such a configuration, the function of transmitting the confirmation request signal and the lock command signal to the mobile phone 13 and the information indicated by the status signal received from the mobile phone 13 can be displayed on the mobile phone 5 side. It is assumed that the function is set.

That is, in FIG. 3, the process waits until a confirmation request signal is received from the mobile phone 5 (step B1).
When it is received, the state of the door lock mechanism (locked state or unlocked state) is checked (step B2), and the check result is returned to the mobile phone 5 as a state signal (step B3).

Then, the mobile phone 5 receiving such a status signal displays whether or not the vehicle door lock mechanism is locked based on the status signal. The vehicle user confirms the locked state of the vehicle door based on the display, and performs an operation of transmitting a locking command signal to the mobile phone 13 as necessary.

On the other hand, after execution of step B3 for transmitting the status signal, the control circuit 2 waits for a predetermined time until receiving the locking command signal from the portable telephone 5 (steps B4 and B5). If the lock command signal is not received within the time, the routine returns as it is. On the other hand, when the locking command signal is received, the vehicle door lock mechanism is locked through the locking / unlocking device 14 (step B6), and thereafter, the process returns. The status signal, confirmation request signal, and locking command signal are encrypted as necessary.

According to such a configuration, when the confirmation request signal is transmitted from the portable telephone 5 carried by a proper vehicle user, the control circuit 2 which receives the confirmation request signal through the automobile telephone 13 sets the state of the vehicle door lock mechanism. Is returned, and the presence or absence of the locking of the vehicle door lock mechanism is displayed on the mobile phone 5 side based on the status signal.
The appropriate user having the vehicle can easily check the locked state of the vehicle door lock mechanism from a remote place. Then, as a result of the confirmation, when the locking of the vehicle door lock mechanism is forgotten, if a locking command signal is transmitted from the mobile phone 5, the control circuit which has received the locking command signal activates the vehicle door locking mechanism through the locking / unlocking device 14. Because it will be locked, security against vehicle theft and vandalism,
It can be further improved and becomes very convenient in actual use.

In the above embodiment, the security of communication may be enhanced by separately setting a secret key by a PIN code or an application. Although the Bluetooth interface unit 4 has been described as an example of the communication interface unit, an interface unit for a wireless LAN may be used. If a Bluetooth interface unit is already installed on the vehicle side, the interface unit is accessed from the control circuit 2 via the vehicle LAN or the like, so that the B
The luetooth interface unit 4 can be omitted.

[Brief description of the drawings]

FIG. 1 is an overall functional block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart showing a main part of control contents.

FIG. 3 is a flowchart showing a main part of control contents according to another embodiment of the present invention.

[Explanation of symbols]

1 is an anti-theft unit, 2 is a control circuit (control means), 3
Is a storage circuit (storage means), 4 is a Bluetooth interface unit (communication interface unit), 5 is a mobile phone (portable communication terminal), 6 is an ignition switch, 7 is a door switch, 8 is a vibration sensor, 9 is a GPS receiver ( 13 is an automobile telephone (in-vehicle communication terminal),
Reference numeral 14 denotes a locking / unlocking device.

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) G08B 15/00 G08B 15/00 21/00 21/00 U 25/10 25/10 DF term (Reference) 2E250 AA21 BB01 BB08 BB15 BB59 BB64 CC12 CC21 CC27 CC28 FF24 FF27 FF34 FF36 GG05 GG13 HH01 JJ00 JJ01 JJ03 KK03 LL00 LL01 SS01 SS02 SS04 SS07 SS09 SS10 SS12 TT03 UU01 UU02 VV01 5C084 AA04 GG03 A13 GG07 GG03 GG03 5C086 AA28 BA22 CA01 CA23 CB21 CB27 CB37 CB40 DA14 DA40 EA41 EA45 FA02 5C087 AA02 AA03 AA32.

Claims (6)

[Claims] 1. A communication interface unit for forming a short-range wireless link with a portable communication terminal in which predetermined ID information is stored; a storage unit capable of registering a plurality of types of ID information; A connection operation of a short-range wireless link with the mobile communication terminal through the communication interface unit in an on state, and the ID stored in the mobile communication terminal;
A vehicle security system comprising: a control unit that executes an information search operation and outputs an alarm signal when the ID information registered in the storage unit cannot be searched. 2. An in-vehicle communication terminal capable of long-distance communication with the portable communication terminal, wherein the control means stores, when the alarm signal is output, ID information that matches specific ID information in the storage means. The vehicle security system according to claim 1, wherein alarm information is transmitted to the selected mobile communication terminal through the on-vehicle communication terminal. 3. The security system for a vehicle according to claim 2, further comprising a position detection unit that outputs a vehicle position signal indicating a current position of the vehicle, wherein the control unit is a portable communication device to which the alarm information is transmitted. A vehicle security system configured to execute an operation of transmitting the vehicle position signal to the terminal through the on-vehicle communication terminal. 4. The in-vehicle communication terminal is configured to be able to receive a control signal from the portable communication terminal that has received the alarm information, and the control unit is configured to receive the control signal when the in-vehicle communication terminal receives the control signal. In addition, a driving prohibition control that switches the vehicle to a driving disabled state on condition that the vehicle is stopped, or an alarm output control that continuously operates an alarm device provided to easily issue an alarm that can be easily confirmed outside. The vehicle security system according to claim 2, wherein at least one of the steps is performed. 5. The control means is connected to a locking / unlocking device for operating a vehicle door lock mechanism, and when the vehicle door lock mechanism is unlocked while the vehicle main power is off. Performing a connection operation of a short-range wireless link with the mobile communication terminal through the communication interface unit and a search operation of the ID information stored in the mobile communication terminal, and executing the ID information registered in the storage unit. The vehicle security system according to any one of claims 1 to 4, wherein a locking operation of the vehicle door lock mechanism is performed through the locking / unlocking device when the search is not performed. 6. The vehicle security system according to claim 2, wherein the control unit is connected to a locking / unlocking device for operating a vehicle door lock mechanism, and the storage unit stores the storage unit in the storage unit. ID
When a confirmation request signal from the mobile communication terminal in which ID information matching the information is stored is received through the on-vehicle communication terminal, a status signal indicating whether the vehicle door lock mechanism is locked is mounted on the mobile communication terminal. An operation of answering back through a communication terminal, and an operation of locking the vehicle door lock mechanism through the locking and unlocking device when a locking command signal from the portable communication terminal is received through the in-vehicle communication terminal is configured to be executable. A security system for vehicles.