JPH0532124U - Human body detection device outside the vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] Easily detect the human body outside the vehicle. [Structure] An infrared sensor 3 for detecting infrared rays emitted from a human body outside the vehicle is provided at an appropriate place such as a door mirror 2, a front bumper 7, a rear bumper 8. The detection signal of the infrared sensor 3 is amplified by the amplification / control unit 4, and the display 5 and the alarm 6 are operated to notify the driver of the approach of the human body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a device for detecting a human body such as a pedestrian outside a vehicle, especially in a blind spot.

[0002]

[Prior Art]

 Various attempts have been made to reduce the blind spot by using an optical visual recognition device or the like configured by combining a plurality of mirrors so that a pedestrian or the like does not enter the blind spot of the vehicle body.

[0003]

[Problems to be solved by the device]

 By the way, in the case of the above-mentioned optical visual recognition device, there are problems that the device becomes large-scaled and that initial adjustment and readjustment during use are troublesome. Therefore, the present invention aims to solve the related problems.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a human body detection device outside a vehicle according to the present invention includes an infrared sensor that detects infrared rays emitted from a human body outside the vehicle and an alarm device that operates according to a detection signal of the infrared sensor outside or inside the vehicle. It is characterized by being provided in.

[0005]

[Action]

 When a human body approaches a predetermined area outside the vehicle, the infrared sensor detects infrared rays emitted from the human body and outputs a detection signal. A warning device is activated by this detection signal to notify the occupant of the approach of the human body.

[0006]

【Example】

 FIG. 1 is a diagram showing a schematic configuration according to one embodiment. Infrared sensors 3 are provided on door mirrors 2 provided on the left and right of a front part of a vehicle body 1, and each infrared sensor 3 is an amplification / control unit 4 inside a vehicle. The amplification / control section 4 is further connected to the display 5 and the alarm 6. The display device 5 and the alarm device 6 are specific examples of the warning device. In addition, if necessary, the infrared sensor 3 is also provided at an appropriate place such as the front bumper 7 and the rear bumper 8.

The infrared sensor 3 is a known one whose detection range is adjusted to the wavelength of infrared rays emitted by the human body, and is set so as to cover the warning range 9 outside the vehicle. The warning range 9 is a range where blind spots outside the vehicle are likely to occur, and is set appropriately on the left and right sides of the vehicle body, the corners of the front bumper 7 and the rear bumper 8 behind, for example, about 5 m. In the figure, only the warning range 9 on the left side of the vehicle body is displayed, and the display on the right side is omitted. When a pedestrian 10 or the like enters the warning area 9, the infrared sensor 3 detects the radiated infrared ray and outputs a detection signal to the amplification / control section 4.

The amplification / control unit 4 includes an amplifier for amplifying the detection signal of the infrared sensor 3, and a controller for operating either or both of the display 5 and the alarm 6 by the amplified output. There is. The display device 5 is an appropriate visual recognition device such as a well-known liquid crystal display, and displays a warning by characters, figures or light emission.

The alarm device 6 is a suitable audible recognition device capable of issuing an alarm sound by a known buzzer, a synthetic voice device, or the like. It should be noted that either one of the display device 5 and the alarm device 6 may be selectively used, or both of them may be used simultaneously.

Next, the operation of this embodiment will be described. In FIG. 1, when a pedestrian 10 enters the warning range 9, the infrared sensor 3 detects the infrared radiation and outputs a detection signal to the amplification / control unit 4. The amplification / control section 4 amplifies this signal to activate the display 5 or the alarm 6 or both of them. The driver knows that the pedestrian 10 has entered the warning range 9 by the warning display of the display device 5, the warning of the alarm device 6, or both, and can take necessary measures promptly. In addition, the device including the infrared sensor 3, the amplification / control unit 4, the display unit 5, and the alarm unit 6 can be made compact as a whole. Moreover, the infrared sensor 3 can be adjusted by a simple sensitivity adjustment.

FIG. 2 shows another embodiment in which only the amplification / control unit 4 is changed. In the following, the same reference numerals will be used for the parts common to those in the previous embodiment. In this example, the amplification / control unit 4 is connected to a turning sensor 11 for detecting the turning of the vehicle body at the time of left / right folding or cornering, for example, one or both of a turn signal switch and a steering angle sensor. When the vehicle body turns left or right, the amplifier is activated to increase the sensitivity of only the infrared sensor 3 on that side, so that the turning side can be alerted.

FIG. 3 shows another embodiment in which the Fresnel lens 12 is provided in front of the light receiving portion of the infrared sensor 3. In this way, since infrared rays emitted from a wider range of human body can be collected, it becomes possible to expand the warning range and detect a farther distance. If the infrared sensor 3 is provided with a bandpass filter that can pass only the wavelength range of infrared rays emitted by the human body, sunlight and other noises can be removed, and only the approach of the human body can be accurately detected. Further, the infrared sensor 3 can be provided outside the vehicle or at any position inside the vehicle.

[0013]

[Effect of the device]

 According to the present invention, an infrared sensor for detecting infrared rays emitted by the human body and a warning device that operates by this detection signal are provided outside or inside the vehicle. I can inform you. Moreover, this device can be made compact without being complicated as in the past, and the initial adjustment and adjustments during use can be simplified.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment.

FIG. 2 is a block diagram of another embodiment.

FIG. 3 is a schematic view of a main part of still another embodiment.

[Explanation of symbols]

 1 Vehicle Body 3 Infrared Sensor 4 Amplification / Control Unit 5 Display 6 Alarm 9 Warning Range 10 Pedestrian

Claims (1)

[Scope of utility model registration request] 1. An apparatus for detecting a human body outside a vehicle, comprising: an infrared sensor for detecting infrared rays emitted from a human body outside the vehicle;