JP3865867B2 - Night vision device for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a night vision device for a vehicle that prevents the night vision device from being used for crimes.
[0002]
[Prior art]
As this kind of thing, there exists a thing for ships as shown, for example in Unexamined-Japanese-Patent No. 6-162398.
[0003]
[Problems to be solved by the invention]
However, this type of night vision device using infrared rays has been greatly improved in recent years, and it has become possible to obtain a clear image far away in the darkness at night, and has also been downsized. ing. Therefore, when this night vision device is installed as a vehicle safe driving support device, it becomes possible to discover in advance pedestrians wearing dark clothes that are difficult to find visually, and the driver You will be able to drive safely.
[0004]
In this way, by installing this type of high-performance night vision device in the vehicle, it is possible to improve the road safety for the good general public, but on the other hand, the disadvantage of being abused for crime There is. For example, after committing a crime, it may be used to escape in the dark with a vehicle relying on a night vision device without turning on the headlight.
[0005]
Therefore, the present invention has been made paying attention to the above-mentioned problems. By performing output control of image processing means for converting image data supplied from the night vision device into a display signal, the night vision device can be abused. The purpose is to prevent.
[0006]
[Means for Solving the Problems]
A night vision device for a vehicle according to the present invention includes a night vision device that operates in conjunction with a lighting switch, an image processing unit that converts image data supplied from the night vision device into a display signal, and a display from the image processing unit. When it is determined that the display device for displaying the signal and the ID code included in the received signal is a normal ID code, a signal for permitting engine start is output and data indicating that the normal ID code has been received And a memory for storing data output from the receiving device, and the image processing neglect is supplied from the night vision device by confirming that the data from the receiving device exists in the memory. Image data is converted into a display signal and displayed on a display device.
[0007]
A night vision device for a vehicle according to the present invention includes a night vision device that operates in conjunction with a lighting switch, an image processing unit that converts image data supplied from the night vision device into a display signal, and a display from the image processing unit. A display device that displays a signal, and a first image display device that activates image processing means when the lighting switch is turned on and starts running, converts image data supplied from the night vision device into a display signal, and displays the image on the display device. And a judging means.
[0008]
The night-vision device for a vehicle according to the present invention includes a timer that operates only for a predetermined time after the ignition switch is turned on, and a logical sum of an operation signal of the timer and a determination signal of the first determination means. And a second determination unit that activates the processing unit to convert the image data supplied from the night-vision device into a display signal and displays the display signal on the display device.
[0009]
The night vision device for a vehicle night vision device according to the present invention receives infrared rays emitted from a detection target.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Basic principle.
The basic principle of the present invention will be described with reference to FIG.
That is, 1 is attached to the vehicle toward the front of the vehicle in order to input image data of a range illuminated by the headlight lamps (or small lamps) 6 and 7 for the vehicle to travel at night, or a range in front of it. The infrared night vision camera (night vision device) is composed of a CCD and the like, and its detection wavelength is set to about 10 micrometers, which is often generated by humans, and is supplied from the outside through a light receiving lens. Convert infrared image data into electrical signals and output them. Reference numeral 2 denotes an image processing means comprising a microcomputer, which converts the image data supplied from the infrared night vision camera 1 into a display signal and outputs it to the display device 3 so that it can be displayed. A lighting switch 4 is turned on to supply power from the in-vehicle battery 5 to the pair of headlight lamps 6 and 7 to light up and to supply power to the infrared night-vision camera 1 to operate.
[0011]
With the configuration described above, when the lighting switch 4 is turned on, power is supplied from the in-vehicle battery 5 to the infrared night vision camera 1 and the headlight lamps 6 and 7, the headlight lamps 6 and 7 are turned on, and the infrared light is turned on. The operation of the night vision camera 1 is started, image data is converted into a display signal by the image processing means 2, and an image ahead of the vehicle is displayed on the display device 3.
[0012]
However, when the lighting switch 4 is turned off, the headlight lamps 6 and 7 are turned off, and the infrared night vision camera 1 is not supplied with power from the in-vehicle battery 5, so nothing is displayed on the display device 3.
As a result, when the vehicle is mounted with this configuration, the infrared night vision camera 1 cannot be used unless the vehicle lights the headlight lamps 6 and 7, and the headlight lamps 6 and 7 are turned off. You can not drive.
[0013]
Embodiment 1 FIG .
Embodiment 1 according to the present invention will be described with reference to FIG. 2. The same or equivalent components as those already described in the basic principle of FIG. Omitted and only different parts will be described below.
The image processing means 2 ′ has the following functions added to the functions of the image processing means 2. That is, the image processing means 2 ′ has a function of starting image processing for the first time by reading that data indicating permission of image processing is written in the second memory 12 described later. A receiving device 8 receives an anti-theft ID code (a code uniquely provided for each vehicle) from a portable transmitter (not shown) via an antenna 9, and the ID code is stored in the first memory. Only when the ID code stored in the memory 10 matches the ID code, the engine start control device 11 is supplied with a signal permitting engine start, and the second memory 12 indicates that the regular ID code has been received. Data (corresponding to the signal indicating permission of the image processing) is stored.
[0014]
In the above configuration, when the owner of the vehicle transmits the ID code to the receiving device 8 by remote control from the portable transmitter to drive the engine, the receiving device 8 stores the ID code in the regular memory stored in the first memory 10. When it is determined that the ID code is a legitimate ID code as compared with the anti-theft ID code, a signal for permitting the engine to start is supplied to the engine start control device 11, and the normal ID code is supplied to the second memory 12. The data indicating that is received is stored.
[0015]
As a result, when the driver subsequently turns on the lighting switch 4 to use the night-vision device, the headlight lamps 6 and 7 are turned on, and the infrared night-vision camera 1 is supplied with electric power from the in-vehicle battery 5 and the front of the vehicle. Are displayed on the display device 3. In addition, when the operation for starting the engine is not performed by the authorized portable transmitter, the data indicating that the authorized ID code has been received is not stored in the second memory 12, so that an unauthorized operation is performed. Even if the engine is started and the lighting switch 4 is turned on to turn on the headlight lamps 6 and 7, the image processing means 2 'does not start signal processing, so nothing is displayed on the display device 3. As a result, since the infrared night vision camera 1 cannot be used at night, the headlight lamps 6 and 7 cannot be traveled with no light.
[0016]
Embodiment 2. FIG .
The form state 2 in accordance with this invention will be described with reference to FIG. 3, but those already identical to that of the configuration described, or the equivalent ones are denoted by the same reference numerals and detailed description thereof in the basic principle of Fig. 1 Are omitted, and only different parts will be described below.
The image processing means 2 ″ has the following functions added to the functions of the image processing means 2 in FIG. 1. That is, the image processing means 2 ″ receives a high-level image processing permission signal from an AND circuit 14 described later. Is added, a function for starting signal processing is added. Reference numeral 13 denotes a vehicle speed sensor which supplies a signal accompanying the start of traveling of the vehicle to the AND circuit 14. In addition to this, the AND circuit 14 is supplied with a high level signal generated when the lighting switch 4 is turned on, and when the signal accompanying the reception of the image data of the infrared night vision camera 1 is supplied, the AND circuit 14 is at a high level. An image processing permission signal is supplied to the image processing means 2 ″.
[0017]
In the above configuration, when the vehicle owner turns on the lighting switch 4 to start night driving, the headlight lamps 6 and 7 are turned on and a high level signal is supplied to the AND circuit 14, and the infrared night-vision camera. 1 is supplied with power from an in-vehicle battery 5. As a result, the image data is supplied to the image processing means 2 "and a signal indicating that the infrared night vision camera 1 is receiving light is supplied to the AND circuit 14. At this time, the vehicle starts running, When a signal associated with traveling is supplied from the vehicle speed sensor 13 to the AND circuit 14, the AND condition is established, the AND circuit 14 supplies an image processing permission signal to the image processing means 2 ", and the image processing means 2" starts image processing. Then, an image ahead of the vehicle is displayed on the display device 3.
[0018]
Here, for example, if the lighting switch 4 is turned off to turn off the headlight lamps 6 and 7 or the running is stopped, the AND condition in the AND circuit 14 is not satisfied, and the image processing means 2 " Since the supply of the image processing permission signal is stopped, nothing is displayed on the display device 3. As a result, the infrared night vision camera 1 cannot be used at night, so that the headlight lamps 6 and 7 are turned off. You can not drive.
[0019]
Embodiment 3 FIG.
Embodiment 3 according to the present invention will be described with reference to FIG. 4. The same or equivalent components as those already described in FIGS. Omitted and only different parts will be described below.
In this embodiment, the infrared night vision camera 1 is operated only for a predetermined time even when the engine is idling and stopped in preparation for the start of running using the OR gate 17. That is, when the ignition switch 15 is turned on for that purpose, the timer 16 starts operating for a predetermined time in conjunction with the ignition switch 15 and supplies a high level signal to the OR gate 17. Thereby, the OR gate 17 supplies a pseudo image processing permission signal to the image processing means 2 ″ while the timer 16 is operating. Thereafter, when the timer operating time of the timer 16 elapses, the image processing means 2 ″ Then, it waits for the image processing permission signal to be supplied from the AND circuit 14 via the OR gate 17.
[0020]
In the above configuration, the lighting switch 4 is operated for a predetermined time after the timer 16 is operated after the ignition switch 15 is turned on in order to start traveling, or as described in the second embodiment. When the vehicle is turned on and the vehicle starts running, the OR gate 17 supplies a high-level image processing permission signal to the image processing means 2 ″, the image processing means 2 ″ performs image processing, and the display device 3 displays an image in front of the vehicle. Is displayed.
[0021]
In each of the above embodiments, the output of the image data from the infrared night vision camera 1 is such that no image is displayed on the display device 3 when the conditions are not satisfied. However, the present invention is not limited to this. Needless to say, the image may be darkened so that it cannot be used.
[0022]
【The invention's effect】
As described above , according to the present invention, the data indicating that the regular ID code has been received is stored in the memory, so that the image processing means converts the image data supplied from the night vision device into a display signal. Since it is configured to be displayed on the display device, the normal ID code is not received even if the engine is started by an unauthorized operation, so the image data of the night vision camera cannot be used, and the headlight is unlit. There is an effect that can prevent traveling.
[0023]
Further, according to the present invention, the lighting switch is turned on, and the image processing means is activated when the travel start preparation or the travel start is started, and the image data supplied from the night vision device is converted into the display signal to the display device. Since it is configured to display, image data supplied from the night vision device cannot be displayed on the display device when the vehicle is stopped, thus preventing misuse such as peeping in the dark. There is an effect that can.
[0024]
Further, according to the present invention, the image processing means is activated by a timer operation signal that operates only for a certain period of time after the ignition switch is turned on, and image data supplied from the night vision device is converted into a display signal. is, since it is configured so as to display on the display device, there is an effect that can start traveling to confirm the front of safety.
In addition, according to the present invention, the night vision device receives infrared rays emitted from the detection target, so that there is an effect that no dangerous light beam is required when entering the human eye.
[Brief description of the drawings]
FIG. 1 is a circuit block diagram illustrating the basic principle of a night vision device for a vehicle.
FIG. 2 is an explanatory circuit block diagram showing Embodiment 1 of the night vision device for a vehicle according to the present invention.
FIG. 3 is a circuit block diagram showing a second embodiment of the night vision device for a vehicle according to the present invention.
FIG. 4 is an explanatory circuit block diagram showing Embodiment 3 of the night vision device for a vehicle according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Infrared night vision camera 2,2 ', 2 "Image processing means 3 Display apparatus 4 Lighting switch 5 Car-mounted battery 6,7 Headlight lamp 8 Receiving device 10,12 Memory 11 Engine start control device 13 Vehicle speed sensor 14 And circuit 15 Ignition switch 16 timer 17 or gate

Claims (4)

A night vision device operating in conjunction with a lighting switch, an image processing means for converting image data supplied from the night vision device into a display signal, a display device for displaying a display signal from the image processing means, and reception When it is determined that the ID code included in the signal is a normal ID code, a receiving device that outputs a signal permitting engine start and outputs data indicating that the normal ID code has been received, and the reception A memory for storing data output from the apparatus, and the image processing neglect displays the image data supplied from the night vision apparatus by confirming that the data from the receiving apparatus exists in the memory. A night vision device for a vehicle, which is converted into a signal and displayed on the display device . A night vision device that operates in conjunction with a lighting switch, an image processing means that converts image data supplied from the night vision device into a display signal, a display device that displays a display signal from the image processing means, and A first determination unit that activates the image processing unit when the lighting switch is turned on and starts running, converts image data supplied from the night vision device into a display signal, and displays the display signal on the display device; night vision equipment for the vehicle. From the night vision device, the image processing means is activated by a logical sum of a timer that operates only for a fixed time after the ignition switch is turned on, and an operation signal of the timer and a determination signal of the first determination means. The night vision device for a vehicle according to claim 2, further comprising: a second determination unit configured to convert the supplied image data into a display signal and display the display signal on the display device . The vehicle night vision of any one of claims of claims 1 to 3 night vision, characterized by receiving infrared rays emitted from the detection target.

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