JP2003252177A - Vehicle-theft determining system, vehicle, program and information storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle-theft determining system, a vehicle, a program and an information storage medium, capable of determining the theft even in a state that the electric wave from a GPS satellite and the like can not arrive. <P>SOLUTION: A vehicle theft determining device 20 including a GPS positioning part 22 for detecting a position of an automobile by using electric waves from the GPS satellite when an engine of the automobile is operated, a moving distance measuring part 24 for measuring a moving distance L1 from the success of detecting the position to the stop of the automobile, and a moving distance L2 from the start of the movement of the automobile to the success of detecting the position, a determining part 26 for determining whether the automobile is stolen or not on the basis of the moving distance L1 and the moving distance L2, and a control part 28 for informing a result of determination through an informing part 29, when the theft is determined, is loaded on the automobile. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle theft determination system using GPS or the like, a vehicle, a program and an information storage medium.

[0002]

2. Description of the Related Art Generally, when position detection is performed using radio waves such as GPS (Global Positioning System), it is required in a place such as a valley of a building or an underground parking lot where there is an obstacle. There is a case that the position detection cannot be performed because the received radio wave does not reach.

Therefore, for example, in a vehicle theft determination device simply equipped with GPS, the position cannot be properly detected,
It may not be possible to properly determine the vehicle theft.

In order to solve such a problem, a position search service utilizing a GPS satellite and a mobile phone base station called "Kokosecom" is provided by SECOM Co., Ltd. In this service, when position detection using GPS satellites cannot be performed, position detection using a mobile phone base station is performed.

However, even in a mobile phone base station, there are places where radio waves do not reach, and if position detection is performed by the same mechanism as when using GPS satellites, it cannot be a fundamental solution to the problem. . In addition, in order to accurately detect the position, it is necessary to provide mobile phone base stations at various places throughout the country, resulting in a large scale of equipment.

The present invention has been made in view of the above problems, and an object thereof is a vehicle theft determination capable of performing a theft determination even in a case where a radio wave from a GPS satellite or the like does not reach. To provide a system, a vehicle, a program, and an information storage medium.

[0007]

In order to solve the above problems, a vehicle theft determination system according to the present invention includes a position detecting means for detecting the position of a vehicle using a predetermined radio wave when the engine of the vehicle is operating, and a position detecting means. After the success, the travel distance L1 until the vehicle stops and the travel distance measuring means for measuring the travel distance L2 after the start of the movement of the vehicle until the position detection succeeds, and the vehicle based on the travel distance L1 and the travel distance L2. And a determining means for determining whether or not has been stolen.

Further, the program according to the present invention is a program readable by a computer, the position detecting means for detecting the position of the vehicle using a predetermined radio wave when the engine of the vehicle is operating, and the position detection success. After that, the moving distance L1 until the vehicle stops and the moving distance L2 until the position detection succeeds after starting the movement of the vehicle.
It is characterized by functioning as a moving distance measuring means for measuring and a judging means for judging whether or not the vehicle is stolen based on the moving distance L1 and the moving distance L2.

The information storage medium according to the present invention is a computer-readable information storage medium,
A program for causing a computer to function as the above means is stored.

According to the present invention, the theft determination is performed on the basis of the moving distance L1 until the vehicle stops after the position detection succeeds and the moving distance L2 after the start of the movement of the vehicle until the position detection succeeds. The theft determination can be performed even in the case where the position cannot be detected.

With this, it becomes possible to determine the theft of the vehicle even when the radio wave from the GPS satellite or the like does not reach.

As a method for determining the theft based on the movement distances L1 and L2, for example, a method of determining theft when the difference or ratio between L1 and L2 exceeds an allowable range, and a distance L3 described later is L1 and L2. A method of determining theft when the sum exceeds the addition value may be adopted.

The predetermined radio wave is, for example, GP
Radio waves from S satellites, radio waves from mobile phone base stations, etc. are applicable. Further, as the predetermined antitheft processing, for example,
For example, forced engine stop processing, notification processing, alarm processing, etc. are applicable. Further, the vehicle corresponds to, for example, an automobile or a train driven by an internal combustion engine, an electric motor, or the like.

Further, the vehicle theft determination system may include control means for performing a predetermined antitheft process when the determination means determines that the vehicle has been stolen.

Further, the program and the information storage medium may cause a computer to function as control means for performing a predetermined antitheft process when the determination means determines that the computer has been stolen.

According to this, when it is determined that the vehicle has been stolen, the theft can be prevented.

In the vehicle theft determination system, the program, and the information storage medium, the position detecting means may detect the position when the vehicle is driven.

According to this, for example, when the vehicle is transported by a tow truck or the like when it is not driven, it is possible to distinguish from normal movement by not performing position detection. Theft judgment can be planned.

Further, in the vehicle theft determination system, the detected position P1 at the latest successful position detection before the vehicle is stopped and the position immediately after the start of the vehicle movement based on the position information from the position detection means at the time of the position detection. The determination means includes a distance calculation means for calculating a distance L3 from the detection position P2 at the time of successful detection, and the determination means is stolen when the value of the distance L3 exceeds a value obtained by adding the movement distance L1 and the movement distance L2. You may judge.

Further, in the program and the information storage medium, based on the position information from the position detecting means at the time of detecting the position, the detected position P1 at the latest successful position detection before the vehicle is stopped, and immediately after the start of the vehicle movement. The computer is caused to function as a distance calculation means for calculating the distance L3 between the detection position P2 and the detection position P2 when the position detection is successful, and the determination means determines that the value of the distance L3 is the movement distance L1 and the movement distance L.
It may be determined that the device has been stolen if the value obtained by adding 2 is exceeded.

According to this, for example, when an ordinary passenger car is moved on a large truck for the purpose of theft,
L3 indicating the distance between the position detection point P1 before theft and the position detection point P2 after the theft exceeds the addition value of L1 and L2 when the position detection succeeds after the engine operation of the ordinary passenger car. Can be determined.

This makes it possible to properly determine the theft when the vehicle is transported.

Further, in the vehicle theft determination system, the program, and the information storage medium, the control means, when the determination means determines that the vehicle has been stolen, reports the vehicle position information to a predetermined report destination. You may let the means report.

According to this, since the theft can be reported and the location of the vehicle can be discriminated at the report destination based on the position information, theft can be appropriately prevented.

Here, as the report destination, for example,
Applicable to security companies, homes, police, mobile phones of vehicle owners, etc.

Further, in the vehicle theft determination system, the program, and the information storage medium, the control means may control the drive part of the vehicle not to operate when the determination means determines that the vehicle has been stolen. Good.

According to this, the drive unit can be controlled so as not to operate, so that it is possible to appropriately prevent the vehicle from being stolen.

Here, the drive unit corresponds to an engine, an electric motor, or the like. Further, as a method of controlling the drive unit of the vehicle not to operate, for example, a method of controlling an engine immobilizer system provided in the vehicle so that the engine does not operate may be adopted.

A vehicle according to the present invention is equipped with the vehicle theft determination system.

According to this, it is possible to provide the vehicle having the above-mentioned theft determination function.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION A case where the present invention is applied to a vehicle theft determination device, which is a type of vehicle theft determination system installed in an ordinary passenger car, which is a type of vehicle, is described below with reference to the drawings. explain. The embodiments described below do not limit the content of the invention described in the claims. Further, not all of the configurations shown in the following embodiments are indispensable as means for solving the invention described in the claims.

(Description of Entire System) FIG. 1 is a schematic diagram of an ordinary passenger vehicle 10 equipped with a vehicle theft determination device 20 according to an example of the present embodiment.

The vehicle theft determination device 20 is mounted on an ordinary passenger car 10 which is a type of automobile, receives radio waves from a plurality of GPS satellites 90 using a GPS antenna 21 to identify the position of the ordinary passenger car 10, and steals the vehicle. Make a decision.

In the present embodiment, the movement distance after position detection is measured in consideration of the case where the position cannot be specified, and the theft determination is performed based on the movement distance.

Next, a specific method for determining the theft will be described.

FIG. 2 is a schematic diagram showing a positional relationship when the vehicle is stopped and when the vehicle starts moving according to an example of this embodiment.

The actual movement start position P of the ordinary passenger car 10
Let L2 be the moving distance of the ordinary passenger vehicle 10 from 2'to the first position P2 where the position detection using the GPS satellite 90 is successful. Further, the moving distance of the ordinary passenger vehicle 10 from the last position P1 at which the position detection using the GPS satellite 90 is successful to the actual stop position P1 ′ of the ordinary passenger vehicle 10 is L1.
Further, the distance between the position P1 and the position P2 is L3.

In the present embodiment, when L3 exceeds the value obtained by adding L1 and L2, it is determined that the ordinary passenger vehicle 10 has been stolen.

This is a circle C1 whose center is P1 and whose diameter is L1, and a circle C2 whose center is P2 and whose diameter is L2.
It means that they do not overlap each other, and it is considered that they were carried on a truck or the like from the actual stop position P1 ′ to the actual movement start position P2 ′ for the purpose of theft.

Next, a functional block of the vehicle theft determination device 20 for realizing such a function will be described.

FIG. 3 is a functional block diagram of the vehicle theft determination device 20 according to an example of this embodiment.

The vehicle theft determination device 20 has a GPS antenna 21, and when the engine of the ordinary passenger car 10 is in operation, the GPS is detected.
The GPS positioning unit 22 that functions as a position detecting unit that detects the position of the ordinary passenger vehicle 10 using the radio waves from the satellite 90.
Then, the distance calculation unit 23 that calculates the distance L3 described above, the movement distance measurement unit 24 that measures the movement distance L1 and the movement distance L2 described above, the processing unit 25 that performs the theft determination, and the like are determined to have been stolen. In this case, it is configured to include a reporting unit 29 that reports the position information of the ordinary passenger car 10 to the security company, and a storage unit 30 that temporarily stores the position information and the like.

Further, the processing unit 25 determines whether or not the value of the distance L3 exceeds the value obtained by adding the moving distance L1 and the moving distance L2, and the updating unit for storing the position information and the like in the storage unit 30. 27 and a control unit 28 that controls the notification of the notification unit 29 and the like.

The hardware of each of these units is, for example, a general GPS as the GPS positioning unit 22.
A positioning device or the like is realized by using a CPU or the like as the distance calculation unit 23 and the processing unit 25, a vehicle speed pulse device or the like as the moving distance measurement unit 24, a wireless communication device or the like as the notification unit 29, and a RAM or the like as the storage unit 30. it can.

The functions of the determination unit 26 and the like may be realized by hardware such as a circuit, and may be realized by reading a program from the information storage medium 40 or a program from a host device or the like via a network. May be read and realized.

The information storage medium 40 is, for example, a CD-ROM, a DVD-ROM, a ROM, a RAM,
An HDD or the like can be applied, and the program reading method may be a contact method or a non-contact method.

(Explanation of Processing Flow) Next, the flow of vehicle theft prevention processing using the vehicle theft determination device 20 described above will be explained.

FIG. 4 is a flowchart of vehicle theft prevention processing according to an example of this embodiment.

First, the processing when the engine is started for the first time will be described.

After the engine is started, the moving distance measuring unit 24
Zero clear the variable L0 that represents the moving distance (set the value to 0)
Yes (step S0).

Then, the judging section 26 judges whether or not the engine is started for the second time or later (step S1). In addition,
To count the number of times, the counter variable is stored in the storage unit 3.
It can be realized by storing it in 0 and updating the counter variable by the updating unit 27. Further, the updating unit 27 and the storage unit 30 may be configured such that the counter variable is cleared to zero when the engine is started by a predetermined operation by the user.

When the engine is started for the first time, the moving distance measuring unit 24 starts to accumulate the distance traveled by the ordinary passenger vehicle 10 in L0 (step S5).

Then, the judging section 26 judges whether or not a fixed time (for example, 10 seconds) has elapsed based on the timer value of the timepiece device or the like of the ordinary passenger car 10 (step S6).

If the fixed time has not elapsed (step S6 is "NO"), the vehicle theft determination device 20
Determines whether or not there is an engine stop request (step S12), which will be described later, and when there is no engine stop request, performs the processing after the determination of elapse of a certain time (step S6) again.

When the fixed time has elapsed (step S6 is "YES"), the GPS positioning section 22 measures the current position P0 using the GPS antenna 21 (step S).
7). In this embodiment, the GPS positioning unit 22 is
Positioning is performed only when the engine of the ordinary passenger vehicle 10 is operating and the ordinary passenger vehicle 10 is driven. As a result, it is possible to properly detect a situation in which the position of the ordinary passenger vehicle 10 is detected when the ordinary passenger vehicle 10 is transported while the engine, which is a kind of the drive unit, is not operating, and the ordinary movement of the ordinary passenger vehicle 10 is erroneously determined. It can be prevented. However, if the processing unit 25 can distinguish the normal movement of the ordinary passenger vehicle 10 from the movement for the purpose of theft, the GPS positioning unit 22 is configured to perform positioning during normal movement regardless of whether the engine is operating or stopped. You may.

The determining unit 26 is configured such that the GPS positioning unit 22 uses the GPS
It is determined whether or not the radio wave from the satellite is normally received and the measurement of the current position P0 is successful (step S8).

In the case of failure, the vehicle theft determination device 20
The processes from the measurement of the moving distance L0 (step S5) to the measurement success / failure determination (step S8) are repeated.

On the other hand, if the determination is successful, the determination unit 26 determines whether or not the first position measurement succeeds after the engine is started (step S9). In the case of the first determination, the update unit 27 sets the movement distance L0 to the movement distance. It is stored in the storage unit 30 as L2, and the current position P0 is stored in the storage unit 30 as the position P2 (step S10).

That is, the moving distance L2 is
Indicates the distance to the first position measurement success point, and the position P2
Indicates the first position measurement success point after the start of movement.

Then, the updating section 27 stores the current position P0 as the position P1 in the storage section 30 and resets (initializes) the value of the moving distance L0 (step S11).

In the second and subsequent times, L2 and P2 already have values, so the vehicle theft determination device 20
The process of updating L2 and P2 (step S10) is not performed.

Then, the judging section 26 judges whether or not there is an engine stop request from the driver (step S
12).

When the engine stop request is not issued, the vehicle theft determination device 20 performs the processes from the measurement of the moving distance L0 (step S5) to the updating of P1 and the resetting of L0 (step S11).

On the other hand, when there is an engine stop request, the updating unit 27 stores the moving distance L0 as the moving distance L1 in the storage unit 30 (step S13).

By the above processing, the values of L1, L2, P1 and P2 are updated when the engine is started for the first time.

Next, the processing after the engine is started for the second time and thereafter will be described.

When the engine is started for the second time and thereafter, the distance calculation unit 23 calculates the distance L3 between P1 and P2 (step S2).

The determination unit 26 determines whether L3 is less than or equal to the sum of L1 and L2 (step S3).

When L3 exceeds the added value of L1 and L2,
The control unit 28 determines that the ordinary passenger car 10 has been stolen, causes the notifying unit 29 to notify the security company of the position information indicating the current position P0, and controls the engine immobilizer system incorporated in the ordinary passenger car 10. To forcibly stop the engine (step S4).

As a result, when the ordinary passenger car 10 is stolen, the vehicle theft determination device 20 can perform antitheft processing such as reporting and stopping the engine.

When L3 is equal to or less than the sum of L1 and L2, the vehicle theft determination device 20 performs the same process as the above-described process at the time of starting the first engine.

As described above, according to the present embodiment, after the position detection succeeds, the moving distance L1 until the vehicle such as the ordinary passenger car 10 stops and after the start of the movement of the vehicle until the position detection succeeds. By performing the theft determination based on the moving distance L2, the theft determination can be performed even in the case where the position cannot be detected.

This makes it possible to determine the theft of the vehicle even when the radio wave from the GPS satellite 90 does not reach.

In particular, the determination is made by whether or not L3, which indicates the distance between the position detection point P1 before theft and the position detection point P2 after the theft, exceeds the added value of L1 and L2.
For example, when the ordinary passenger car 10 is placed on a large truck and moved for the purpose of theft, it can be determined that the vehicle has been stolen when the position detection succeeds after the engine operation of the ordinary passenger car 10.

Thus, theft can be properly prevented when the vehicle is transported.

In addition, when the vehicle is stolen, the vehicle theft determination device 20 performs a notification process to report the theft, and the location of the vehicle can be determined by the location information at the report destination. Theft can be prevented.

Furthermore, when the vehicle is stolen, the vehicle theft determination device 20 can be controlled so as not to operate the drive unit such as the engine, so that the vehicle can be properly prevented from being stolen.

(Modification) The present invention is not limited to the above-described embodiment, and various modifications can be made.

For example, as a method for determining the theft based on the moving distances L1 and L2, in addition to the method using the distance L3,
For example, a method of determining theft when the difference or the ratio between L1 and L2 exceeds the allowable range may be adopted.

Although radio waves from GPS satellites are used in the above-described embodiments, radio waves from a base station of a mobile phone, radio waves from a dedicated position transmitting device, or the like may be used.

In the above-described embodiment, the engine forcible stop processing and the notification processing are performed as the theft prevention processing. For example, the vehicle theft determination apparatus 20 itself performs alarm processing such as sounding a loud buzzer. You can go.

Further, the report destination may be, for example, a home, the police, a mobile phone of the owner of the vehicle, etc. other than the security company.

As the vehicle equipped with the vehicle theft determination device 20, various vehicles such as trucks, taxis, motorcycles, agricultural vehicles, construction vehicles, and trains can be used in addition to the ordinary passenger vehicle 10. .

Further, as a drive unit for driving the vehicle,
The invention is not limited to an engine having an internal combustion engine using gasoline or the like, and for example, an electrically driven portion such as an electric motor,
You may use the drive part etc. by solar energy.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an ordinary passenger vehicle equipped with a vehicle theft determination device according to an example of the present embodiment.

FIG. 2 is a schematic diagram showing a positional relationship when the vehicle is stopped and when the vehicle starts moving according to an example of the present embodiment.

FIG. 3 is a functional block diagram of a vehicle theft determination device according to an example of the present embodiment.

FIG. 4 is a flowchart of vehicle theft prevention processing according to an example of the present embodiment.

[Explanation of symbols]

10 Normal passenger car (vehicle) 20 Vehicle theft determination device 21 GPS antenna 22 GPS positioning unit (position detecting means) 23 Distance calculator 24 Moving distance measuring unit 25 Processing Department 26 Judgment section 27 Update Department 28 Control unit 29 Report Department 30 storage 40 Information storage medium 90 GPS satellites

Claims (14)

[Claims] 1. A position detecting means for detecting the position of a vehicle using a predetermined radio wave, and a moving distance L1 after the position detection is successful until the vehicle stops and after the start of the movement of the vehicle until the position detection is successful. A vehicle theft determination system comprising: a moving distance measuring unit that measures the moving distance L2 of the vehicle; and a determination unit that determines whether or not the vehicle has been stolen based on the moving distance L1 and the moving distance L2. 2. The vehicle theft determination system according to claim 1, further comprising a control unit that performs a predetermined antitheft process when the determination unit determines that the unit has been stolen. 3. The vehicle theft determination system according to claim 1, wherein the position detecting means detects a position when the vehicle is being driven. 4. The detected position P1 at the latest successful position detection before the vehicle stop and the vehicle movement start based on the position information from the position detection means at the time of the position detection. It includes a distance calculation means for calculating a distance L3 between the position and the detected position P2 at the time of succeeding position detection, and the determination means determines that the value of the distance L3 exceeds the sum of the movement distance L1 and the movement distance L2. A vehicle theft determination system, which determines that the vehicle has been stolen. 5. The control unit according to claim 2, wherein when the determination unit determines that the vehicle has been stolen, the control unit causes a notification unit that reports the position information of the vehicle to a predetermined report destination. Vehicle theft determination system characterized by. 6. The vehicle theft according to claim 2, wherein the control unit controls the drive unit of the vehicle not to operate when the determination unit determines that the vehicle has been stolen. Judgment system. 7. A vehicle equipped with the vehicle theft determination system according to any one of claims 1 to 6. 8. A program readable by a computer, the computer comprising: position detecting means for detecting the position of the vehicle by using a predetermined radio wave; and a moving distance L1 until the vehicle stops after the position detection is successful. After the start of the movement of the vehicle, it is caused to function as a movement distance measuring means for measuring a movement distance L2 until the position is successfully detected, and a judgment means for determining whether or not the vehicle is stolen based on the movement distance L1 and the movement distance L2. A program characterized by that. 9. The program according to claim 8, which causes a computer to function as control means for performing predetermined antitheft processing when the determination means determines that the computer has been stolen. 10. The program according to claim 8, wherein the position detecting means detects a position when the vehicle is driven. 11. The detection position P1 at the latest successful position detection before the vehicle stop and the vehicle movement start based on the position information from the position detection means at the time of the position detection. The computer is caused to function as a distance calculation means for calculating the distance L3 between the position and the detected position P2 at the time of succeeding position detection. A program characterized by determining that it has been stolen if it exceeds. 12. The control unit according to claim 9, wherein when the determination unit determines that the vehicle has been stolen, the control unit causes the notification unit that reports the position information of the vehicle to a predetermined report destination. A program characterized by. 13. The program according to claim 9, wherein the control unit controls the drive unit of the vehicle not to operate when the determination unit determines that the vehicle has been stolen. 14. An information storage medium readable by a computer, wherein the program according to any one of claims 8 to 13 is stored.