JP3197545U - Vehicle security system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular security system for transmitting a photographed image to a portable terminal possessed by a related person when a person such as a suspicious person approaches within a predetermined distance. A vehicle security system includes an imaging unit (2) that is arranged in front of and behind a vehicle (10), and that images at least the front and rear of the vehicle through an imaging lens while the vehicle is stopped. And a judging means (16) for judging that a person has approached within a predetermined distance from the front end or the rear end of the vehicle based on an image taken by the photographing means, and a judging means installed in the vehicle within a predetermined distance. A transmission unit (14) that transmits an image captured by the imaging unit to a portable terminal of a person concerned in the vehicle when it is determined that a person is approaching. [Selection] Figure 1

Description

  The present invention includes a vehicle-side communication device and a portable terminal that can communicate with each other, and when a suspicious person approaches the vehicle within a predetermined distance, an image of the suspicious person is transmitted to a person who carries the portable terminal. The present invention relates to a vehicle security system.

  When delivering cleaned clothes or parcels or moving, the driver may inadvertently leave the vehicle without leaving the driver's seat door lock or cargo door lock when leaving the vehicle. Such an inadvertent act can contribute to theft of luggage in the vehicle and theft of the vehicle itself, so it is desirable to prevent it appropriately.

  In order to prevent luggage theft and the vehicle itself from being stolen by such an inadvertent act, the idea of Patent Document 1 is provided. According to this device, even when the vehicle stops, the photographing means mounted on the vehicle is left in operation, and the photographing means detects that a suspicious person has broken the window glass of the vehicle or has entered the suspicious person. I can do it.

Utility Model Registration No. 3174831

  However, in the device of Patent Document 1, actual damage such as breaking of the window glass of the vehicle or intrusion by a suspicious person has occurred, and the door of the loading platform is not locked and the luggage is not loaded. It is not even considered to be stolen. In addition, when moving, it may be more efficient to open the door of the loading platform in order to load and unload a lot of cargo to and from the loading platform.

  The present invention is for solving such a problem, and when a person concerned is away from the vehicle, if a person such as a suspicious person approaches within a predetermined distance, a portable terminal device in which the person concerned has a photographed image. It aims at providing the security system for vehicles which transmits to.

  According to a first aspect of the present invention, there is provided a vehicular security system including an imaging unit that is disposed in front of and behind a vehicle and that captures at least the front and the rear of the vehicle through an imaging lens while the vehicle is stopped. Determination means for determining that a person has approached within a predetermined distance from the front end or the rear end of the vehicle based on the image photographed in (1). In addition, the security system includes a transmission unit that is installed in the vehicle and transmits an image captured by the imaging unit to a portable terminal of a person involved in the vehicle when the determination unit determines that the person approaches within a predetermined distance. Prepare.

The vehicle security system according to another aspect may further include a receiving unit that receives an activation signal that activates the photographing unit and the determination unit transmitted from the portable terminal.
The determination unit binarizes the image captured by the imaging unit to determine whether there is a person in the image, and based on the focal length of the imaging lens, the person in the image approaches within a predetermined distance. Judge that.
The distance within the predetermined distance can be changed by operation from the portable terminal.

  According to the present invention, it is possible to provide a vehicular security system that sends an image of a suspicious person to a driver when a suspicious person approaches within a predetermined distance when a related person is away from the vehicle.

It is a figure showing an example of the whole composition of the security system for vehicles concerning the example of the present invention. It is a figure which shows an example which shows the range which an imaging | photography part image | photographs, (a) is the top view seen from the top, (b) is a side view. It is explanatory drawing which measures the distance from the imaging | photography part 2 to a person. It is a flowchart of the execution process using the security system for vehicles and a smart phone. It is an example displayed on the display part of a portable terminal, (A) is a setting screen, (B) is an image display screen.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. Although it is not necessary to limit in particular what kind of vehicle it is, an example of a moving vehicle or a home delivery vehicle will be described in which a person concerned such as a driver is often separated from the vehicle by 5-10.

  FIG. 1 is a diagram illustrating an example of the overall configuration of a vehicular security system according to an embodiment of the present invention. The vehicular security system includes a control unit 1 and a photographing unit 2 installed in a vehicle 10 such as a truck as main components. The control unit 1 has a communication function and can communicate with a mobile terminal 80 such as a smartphone.

  The control unit 1 is, for example, a computer unit in which a ROM, a RAM, and the like are connected to each other via a bus with a CPU as a center, and other storage media such as a hard disk and a DVD (Digital Versatile Disk), an I / O port, A timer is provided. The ROM stores programs and data executed by the CPU.

  The control unit 1 includes a reception unit 12 that receives an instruction to start or end a security operation from the mobile terminal 80 and a transmission unit 14 that transmits an image or the like to the mobile terminal 80. Communication between the reception unit 12 or the transmission unit 14 of the control unit 1 and the portable terminal 80 is performed using an appropriate communication protocol such as 3G, 4G including LTE, WiFi (registered trademark), or Bluetooth (registered trademark). . The distance that the driver DR moves away from the vehicle 10 is generally within a few tens of meters, and the communication distance of WiFi (registered trademark) is about 100 m, and WiFi (registered trademark) is preferable. The communication distance of Bluetooth (registered trademark) is approximately 20 to 30 m, and Bluetooth (registered trademark) is effective when the driver DR is not expected to be separated by 30 m or more.

  The control unit 1 combines the images captured by the image capturing unit 2 with the determination unit 16 and the image capturing unit 2 that determine whether or not a person such as a suspicious person approaches the vehicle 10 within a predetermined distance, and compresses the combined image. Part 18. The determination unit 16 has a distance changing unit 162 that changes the predetermined distance. Moreover, it has the warning sound generation part 19 which emits a warning sound to a suspicious person etc. The warning sound generator 19 may also be used as a horn of the vehicle 10.

  The photographing unit 2 includes a photographing lens 21 and an image sensor 23 such as a color CCD, an infrared CCD, or a CMOS. The taking lens 21 may be a single focus lens or a multifocal lens whose magnification (focal length) can be changed. In the present embodiment, the photographing unit 2 includes a front photographing unit 2F that photographs the front of the vehicle 10 and a rear photographing unit 2B that photographs the rear of the vehicle 10. Further, the front photographing unit 2F may include a right front photographing unit disposed on the right side and a left front photographing unit disposed on the left side as necessary, and the rear photographing unit 2B is also disposed on the right side. You may include the left back imaging | photography part arrange | positioned at the left side. Although not shown in the present embodiment, it may further include another photographing unit that photographs the left-right direction of the vehicle 10.

  Recently, a drive recorder mounted on a vehicle or a parking monitor sold for parallel parking or back parking has been sold for the purpose of clearly recording the accident situation in the vehicle. You may comprise in addition to the Example of this invention to these.

  The portable terminal 80 includes a communication unit (not shown), a speaker that emits sound, a control unit, and a display unit 89. There are no particular restrictions on the size and shape of the portable terminal 80, and any device such as a smartphone, a portable game machine, a laptop computer, or the like may be used as long as the driver DR is portable. . The mobile terminal 80 preferably downloads a program (application) in order to drive the vehicle security system.

  FIG. 2A is a plan view showing a range captured by the imaging unit 2 viewed from the top, and FIG. 2B is a side view showing a range captured by the imaging unit 2 viewed from the left side. The front photographing unit 2F is attached to a position such as a windshield of the vehicle 10 and is configured to be able to photograph the front of the vehicle 10. The rear photographing unit 2B is attached to a position such as a cargo bed door or a carrier frame of the vehicle 10, and is configured to be able to photograph the rear of the vehicle 10. The front photographing unit 2F and the rear photographing unit 2B may be fixed so that the photographing direction can be adjusted.

  The front photographing unit 2F and the rear photographing unit 2B photograph a subject such as a vehicle, a person or a road included in the photographing range, and generate image data representing the photographed image. Here, the image data representing the front image generated by the front photographing unit 2F is referred to as “front image data”, and the image data representing the rear image generated by the rear photographing unit 2B is referred to as “rear image data”. The imaging unit 2 includes an imaging lens 21, an image sensor 23, an A / D conversion unit (not shown), and an encoding unit.

  The taking lens 21 is composed of one or more optical elements. The front photographing unit 2F and the rear photographing unit 2B are configured with a constant angle of view (α), that is, a single focal point, but may be configured such that the angle of view (focal length) can be changed. The image sensor 23 converts light input through the photographing lens 21 into an electrical signal. The A / D conversion unit performs A / D conversion on the electrical signal output from the image sensor 23 to generate digital data. The encoding unit generates image data of a predetermined format from the digital data generated by the A / D conversion unit. Here, the encoding unit generates still image data or moving image image data in a GIF, JPEG, or MJPEG (Motion JPEG) format. Note that the encoding unit may generate image data in a well-known moving image format such as MPEG-1 or MPEG-4.

  In the present embodiment, the front photographing unit 2F has a right front photographing unit 2FR disposed on the right side and a left front photographing unit 2FL disposed on the left side so that 180 degrees forward can be confirmed. The taking lens generally has an angle of view of less than 180 degrees. For this reason, the right front photographing unit 2FR is disposed with its optical axis tilted to the right, the left front photographing unit 2FL is disposed with its optical axis tilted to the left, and the image processing unit 18 has been photographed by the two front photographing units 2F. The image data is synthesized to create an image 180 degrees ahead. Similarly, the rear photographing unit 2B also has a right rear photographing unit 2BR disposed on the right side with the optical axis tilted to the right side, and a left rear photographing unit left side 2BL disposed on the left side with the optical axis tilted to the left side. The degree direction can be confirmed. A fisheye lens with an angle of view of 180 degrees is also present, but the cost of the fisheye lens itself is high and the aberrations are large. Therefore, the image processing unit 18 uses the imaging lens 21 with a maximum angle of view of about 120 degrees, Synthesizing.

  The right front photographing unit 2FR and the left front photographing unit 2FL are configured to have the same angle of view α. Similarly, the right rear photographing unit 2BR and the left rear photographing unit 2BL are configured to have the same angle of view α. However, without being limited to this embodiment, the angle of view of the front photographing unit 2F and the angle of view of the rear photographing unit 2B may be different. Further, the present invention can be applied even if the front photographing unit 2F is simply an imaging unit having an angle of view of about 120 degrees, and the rear photographing unit 2B is also an imaging unit having an angle of view of about 120 degrees. .

FIG. 3 is an explanatory diagram for measuring the distance from the windshield or the loading frame of the vehicle 10 on which the photographing unit 2 is arranged to the person based on the image data photographed by the photographing unit 2. In FIG. 3, the distance from the person to the taking lens 21 is DIS, the person's height is BH, the focal length FD, and the person's height reflected on the image sensor 23 is CBH. Then, the following relational expression is established (unit: mm).
DIS = (FD × BH) / CBH

  Here, assuming that the height of the person is 1650 mm, for example, the distance DIS from the windshield or the loading frame to the person is calculated based on the focal length FD and the height CBH of the person shown on the image sensor 23. Can do. Further, the distance DIS can be calculated even if the photographing lens 21 is moved in the optical axis direction to change the focal length FD.

  The operation of specifying a person from the image data captured on the image sensor 23 is performed by binarizing the front image data or the rear image data and performing a labeling process, and the feature shape (head, hand) of the binarized image and the human body model. , Feet, etc.). When it is confirmed that a person is shown in the front image data or the rear image data, the height CBH of the person shown in the image sensor 23 is obtained. And what is necessary is just to substitute to the said relational expression.

  FIG. 4 is a flowchart when the vehicle security system is activated when the vehicle 10 is stopped and the driver DR leaves the vehicle 10. For example, it is assumed that the driver DR carries the mobile terminal 80 and leaves the vehicle 10 to go to deliver a package for delivery or moving.

  First, when the driver DR stops the vehicle, the control unit 1 is turned on (step T11). When the present embodiment is also used as a drive recorder that takes a picture while the vehicle 10 is in operation, the control unit 1 may not be turned off even if the vehicle 10 is stopped.

  When the driver DR gets out of the seat of the vehicle 10, the driver DR activates an application including the program of the mobile terminal 80 (step T81). Then, the portable terminal 80 and the control unit 1 are individually connected with a password or a pass key. When both are connected, a screen of the vehicle security system as shown in FIG. 5A is displayed on the display unit 89 of the portable terminal 80, for example. For example, when the driver DR leaves a position where the vehicle 10 cannot be seen, the driver DR presses the button C82 of “Activate vehicle security” C81 displayed on the display unit 89 of the driver DR in FIG. click. This is an instruction to start the photographing unit 2 (step T82). The receiving unit 12 of the control unit 1 receives an instruction from the portable terminal 80, and the control unit 1 activates the photographing unit 2 (step S12). Then, the image processing unit 18 synthesizes the image data photographed by the photographing unit 2 and compresses the image.

  In addition, the driver DR sets how many meters a person such as a suspicious person approaches the vehicle 10 to transmit an image to the mobile terminal 80 (step T13). The distance is set by a drop-down menu or the like regarding C83 displayed on the display unit 89 in FIG. 5A, “How many meters should a person approach from the vehicle? For example, “1.0 m” may be input as an initial value. In the present embodiment, the distance can be set, but any fixed distance may be used. For example, the driver DR sets a distance of 1.2 m and clicks the button C4. The receiving unit 12 of the control unit 1 receives an instruction from the portable terminal 80, and the distance changing unit 162 sets to transmit an image when a person such as a suspicious person approaches the vehicle 10 within 1.2 m (step). S13).

  Thereafter, the determination unit 16 of the control unit 1 determines whether or not a person has approached the vehicle 10 within 1.2 meters based on the front image data and the rear image data (step T14). The determination unit 16 discriminates the person from the image data by binarization processing or the like, and as described with reference to FIG. 3, the distance of the person from the vehicle 10 is assumed assuming that the person's height is 1650 mm. to decide. If a person is not approaching the vehicle 10 within a predetermined distance, the image data is processed as it is. When a person approaches the vehicle 10 within a predetermined distance, an image of the person is transmitted from the transmission unit 14 to the portable terminal 80 (step T15). For example, when a person approaches from the front of the vehicle 10, the transmission unit 14 may send only the front image data. When a person approaches from the rear of the vehicle 10, the transmission unit 14 can send only the rear image data. That's fine. When a person approaches the vehicle 10 from both simultaneously, the image processing unit 18 combines the front image data and the rear image data, and the transmission unit 14 transmits the combined image data to the portable terminal 80. Good.

  When the mobile terminal 80 receives the transmitted image, the reception bell of the mobile terminal 80 rings. The driving collection DR notices that the image data has been received by the receiving bell or the like, and checks the display unit 89. For example, FIG. 5B is an example of a screen when an image is sent when a person approaches the vehicle. The display unit 89 displays the image data, and a warning sound generation button C88 is displayed on the lower side.

  The driving collection DR looks at the image projected on the display unit 89 and determines whether the person is a suspicious person or a simple passerby. For example, when moving, multiple people work, but if the person being moved is carrying the luggage by the moving worker or the passerby is only crossing the front and rear of the vehicle, the driver DR is not changed. You don't have to do anything. If the person approaching the vehicle 10 is a suspicious person, the driver DR needs to return to the vehicle 10 immediately.

  If it is determined that the person shown on the display unit 89 is a suspicious person, the driver DR clicks the warning sound generation button C88 (step T84). Then, the receiving unit 12 of the control unit 1 receives the signal, and the warning sound generating unit 19 of the vehicle generates a warning sound (step T16). The driver DR returns to the vehicle 10 while issuing a warning sound to the suspicious person.

  According to the vehicle security system of the present embodiment described above, if a person such as a suspicious person approaches within a predetermined distance when the driver is away from the vehicle, the image can be sent to the driver. The communication between the portable terminal 80 and the control unit 1 is 3G, 4G, WiFi (registered trademark), Bluetooth (registered trademark), or the like. The image processing unit 18 determines the degree of compression of image data according to the communication speed. You may decide. The image data transmitted from the transmission unit 14 to the portable terminal 80 may be either a still image or a moving image. If it is a moving image, it may be moving image data of unit time, for example, 5 seconds or 10 seconds.

Further, although the driver DR gives an instruction by clicking a button displayed on the display unit 89 or the like, the driver DR may give an instruction by an operation of shaking or strongly gripping the mobile terminal 80. In the present embodiment, it has been described that the driver DR of the vehicle carries the portable terminal. However, when a plurality of people are on the vehicle, one person other than the driver may carry the portable terminal. .
The present invention is particularly intended for vehicles such as home delivery or moving of cleaned clothes or luggage, but it can also be used for taxis and private cars.

DESCRIPTION OF SYMBOLS 1 ... Control part 12 ... Reception part, 14 ... Transmission part 16 ... Judgment part, 162 ... Distance change part
DESCRIPTION OF SYMBOLS 18 ... Image processing part, 19 ... Warning sound generation part 2 ... Imaging | photography part 21 ... Shooting lens, 23 ... Imaging element 80 ... Portable terminal device, 89 ... Display part

Claims (4)

An imaging unit that is arranged in front of and behind the vehicle and that images at least the front and rear of the vehicle through the imaging lens while the vehicle is stopped,
A determination unit that is installed in the vehicle and determines that a person approaches within a predetermined distance from a front end or a rear end of the vehicle based on an image captured by the imaging unit;
A transmission unit installed in the vehicle and configured to transmit an image captured by the imaging unit to a portable terminal of a person concerned in the vehicle when the determination unit determines that the person has approached within the predetermined distance; ,
A vehicle security system comprising:   The vehicle security system according to claim 1, further comprising: a receiving unit that receives an activation signal that activates the photographing unit and the determination unit transmitted from the portable terminal.   The determination unit binarizes the image photographed by the photographing unit to determine whether there is a person in the image, and based on the focal length of the photographing lens, the person in the image The vehicle security system according to claim 1, wherein the vehicle security system determines that the vehicle is approaching within a distance. The vehicular security system according to any one of claims 1 to 3, wherein the distance within the predetermined distance can be changed by an operation from the portable terminal.