JPH082355A - Informing device for vehicle - Google Patents

Abstract

PURPOSE:To prevent an accident at the turning time of a vehicle by outputting the danger signal of a danger judging part to give a vocal warning when a detection angle detected by a turning angle detecting sensor is the turning judgement reference value or more and the output of an infrared detecting sensor is the human body judgement reference value or more. CONSTITUTION:A turning angle detecting sensor 4 detects a turning signal is accordance with the turning angle of a vehicle, compares the turning signal with the turning judgement reference value in a turning judging part 22 via an amplifying means 20 and a signal processing part 21, and outputs a turning danger signal to a danger judging part 6 when the output value is the turning judgement reference value or more. An infrared detecting sensor 3 compares the output value of a human body detection signal with the human body judgement reference value in a human body judging part 32 via an amplifying circuit 30 and a signal processing means 31 and outputs a human body danger signal to the danger judging part 6 when the output value is the reference value or more. Upon receiving both the turning danger signal of the turning judging part 22 and the human body danger signal of the human body judging part 32, the danger judging part 6 outputs a danger signal to an informing means 8 so as to give a vocal warning.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle informing device equipped with a sensor for detecting an angle at which a vehicle bends and a sensor for detecting infrared rays of a human body.

[0002]

2. Description of the Related Art FIG. 5 shows an example of a block diagram of a conventional notification device 1, and FIG. 6 shows a bus, truck, etc. in the middle of a left turn equipped with the notification device 1 shown in FIG. A large vehicle 14 and a person 10 are shown.

The conventional notification device 1 comprises a direction indicator 17 and a notification means 8 for issuing a warning such as a voice.
As shown in the figure, when the driver turns on the left direction indicator 17 indicating that the vehicle 14 is turning left, the driver is installed on the left side surface of the vehicle 14 in conjunction with the starting operation of the direction indicator 17. From the notified notifying means 8 (for example, a speaker), a warning is issued toward the left side of the vehicle 14 informing that it is dangerous because the vehicle 14 makes a left turn. Further, when the lighting operation of the direction indicator 17 is stopped, the notification means 8 also stops.

[0004]

As is well known, the vehicle 14
When turning left or right at an intersection, etc.
For example, when turning left as shown in Fig. 6, the left rear wheel
The locus of 16 (dotted curve) passes closer to the bending point (inner side) than the locus of the left front wheel 15 (solid curve). Due to the above, especially when a large vehicle 14 turns left, the left rear wheel 16 causes the person 10 passing on the left side of the vehicle 14, a bicycle or a motorcycle running on the left side of the vehicle 14, etc. There have been many accidents involving people coming in contact with people and involving 10 people.

In order to prevent the occurrence of an accident when the vehicle 14 turns left, when the driver turns left, the rear-view mirror 18 provided on the left side surface of the front part of the vehicle 14
It is checked by the driver's own eyes whether the person 10 is passing by on the left side of the vehicle 14 or whether a bicycle, a motorcycle or the like is running. However, there are blind spots that cannot be seen from the driver by the rearview mirror 18 or visually, and especially for a driver who is driving on the right side of the vehicle 14, there are many blind spots on the left side of the vehicle 14, and the driver can pass by. The person 10 etc. who are present cannot be confirmed, and an accident occurs when the vehicle 14 turns left.

Therefore, in order to prevent accidents when the vehicle 14 turns left, some large vehicles 14 with many accidents are equipped with the alarm device 1 as shown in FIGS. 5 and 6. .

However, if the driver forgets to operate the left turn indicator 17 or operates it with a delay when the vehicle 14 turns left, the notification means 8 will not start at an appropriate timing, and People 10 on the left side of 14
Since the vehicle 14 will turn left, it cannot be notified at an appropriate time that the vehicle 14 is dangerous because it is turning left. Even if the alarm device 1 is provided, an accident occurs when the vehicle 14 turns left. There was a problem that the possibility of was still high.

On the front side of the left turn, when the vehicle 14 is stopped due to a red light, or when it is difficult to move forward due to traffic congestion, etc., the driver accelerates the left direction indicator 17. When it is operated, the notification means 8 is activated to repeatedly give a voice warning, and this voice warning is not a warning but a noise for the surroundings, causing a problem of annoying the surroundings.

The notifying means 8 is a right turn indicator.
Not linked with 17, the notification means 8 does not operate at all when the vehicle 14 makes a right turn. Therefore, for example, when the vehicle 14 turns right at an intersection where the road width is narrow, or when the vehicle 14 travels on the right side of the country such as the United States, the notification device 1
If the vehicle 14 equipped with is exported and used,
When the vehicle 14 turns right, there is a problem that an accident similar to the accident at the time of turning left is more likely to occur.

The present invention has been made in order to solve the above problems, and an object thereof is to cope with bending of a vehicle and automatically give a voice warning at an appropriate timing regardless of a driver's operation. It is to provide an informing device of a vehicle that emits.

[0011]

In order to achieve the above object, the present invention is constructed as follows. That is, the vehicle notification device of the present invention includes a bending angle detection sensor that is installed in the vehicle and detects an angle at which the vehicle bends, and an infrared sensor that is installed on at least the left side surface of the vehicle and detects infrared rays of the human body. The detection angle of at least the left turn detected by the detection sensor and the bending angle detection sensor is greater than or equal to a predetermined bending determination reference value, and the output of the infrared detection sensor is greater than or equal to a predetermined human body determination reference value. It is characterized in that it has a danger judging section which outputs a danger signal when a warning signal is issued and an informing means which receives a danger signal from the danger judging section and gives a voice warning of the danger of bending of the vehicle.

[0012]

In the present invention having the above-mentioned structure, the bending angle detection sensor and the infrared detection sensor are provided to detect the angle of the vehicle's bending movement and the infrared rays of the human body around the vehicle. The detected value is compared with each judgment reference value, and each detected value is more than the judgment reference value (that is, the vehicle is in a bent state and is in a dangerous range such as being caught in the rear wheel of the vehicle due to bending of the vehicle) If it is determined that a human body is present and there is a high possibility of an accident such as involvement, etc.), the danger determination unit outputs a danger signal to the notification means, and upon receipt of this danger signal, it is within the danger range when the vehicle is bent. Automatically alerts the person and the driver from the notification means.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. In the description of the present embodiment, the same reference numerals will be given to the same names as those in the conventional example, and detailed description thereof will be omitted.

FIG. 1 is a block diagram showing the configuration of the notification device 1 of this embodiment, FIG. 2 shows a vehicle 14 and a person 10 equipped with the notification device 1 as seen from the front side, and FIG. Vehicle seen from
14 and 10 are shown.

The notification device 1 of this embodiment comprises a bending angle detection sensor 4, an infrared detection sensor 3, a danger judgment section 6, and a notification means 8.

The bending angle detection sensor 4 detects a bending signal corresponding to the bending angle θ of the vehicle 14 tilted in the left-right direction with respect to the traveling direction. Here, the bending angle detection sensor 4 is used. As shown in FIG. 3, it is installed in the front part of the vehicle 14. In this acceleration sensor, when the bending angle θ is large within a certain period of time, the lateral movement distance of the vehicle 14 is large, and conversely, when the bending angle θ is small, the lateral movement distance of the vehicle 14 is small. From this, the lateral acceleration α of the vehicle 14 detected by the acceleration sensor is detected and output as a bending signal corresponding to the bending angle θ.

Then, as shown in FIG. 1, the bending signal is amplified by the amplifying means 20, and the amplified bending signal is converted by the signal processing means 21 into a signal such as a rectangular wave which facilitates information processing. The output value (signal level) of the bending signal in the bending determination unit 22
Is compared with a predetermined bending judgment reference value. By this comparison, when the output value of the bending signal is less than the bending judgment reference value, the vehicle 14 is not bent, and when the output value of the bending signal is more than the bending judgment reference value, the vehicle 14 is in the bending state. Therefore, only when the vehicle 14 is in the bending state, that is, when the output value of the bending signal is equal to or more than the bending determination reference value, the danger determining unit 6 outputs the folding danger signal.

The infrared detection sensor 3 is a known pyroelectric type or thermistor infrared sensor, and as shown in FIG.
It is installed on the left side and the rear of the vehicle 14 and detects infrared rays (heat) emitted from the person 10. As shown in FIG. 1, an amplification circuit for a human body detection signal output from this sensor
The signal is amplified by 30, and the signal processing means 31 converts the amplified human body detection signal into a signal such as a rectangular wave that facilitates information processing, and the human body determination unit 32 preliminarily sets the output value (signal level) of the human body detection signal. Contrast with the given human body judgment standard value. By this comparison, when the output value of the human body detection signal is less than the human body judgment reference value, the person 10 (for a bicycle or a motorcycle, etc.) is in a range where there is a risk of being caught by the rear wheel 16 of the vehicle 14 when the vehicle 14 is bent. When the output value of the human body detection signal is equal to or higher than the human body judgment reference value, it is considered that the person 10 exists within the dangerous range when the vehicle 14 is bent, and the vehicle 14 is bent. The human body danger signal is output to the danger judgment unit 6 only when the person 10 is present within the time danger range, that is, when the output value of the human body detection signal is equal to or higher than the human body judgment reference value.

The danger judgment unit 6 receives the bending danger signal output from the bending judgment unit 22 and the human body danger signal output from the human body judgment unit 32, that is, the bending of the vehicle 14. When there is a high possibility that an accident such as involving the person 10 with the rear wheel 16 will occur, a danger signal is output to the notification means 8.

Upon receipt of the danger signal, the notification means 8 gives a voice warning to the person 10 and the driver who are traveling within the danger area when the vehicle 14 is bending.

With respect to the notification device 1 having the above configuration, the operation of the notification device 1 will be described below with reference to the flowchart of FIG.

First, after the start, in step 101, the infrared ray (human body detection signal) of the person 10 is detected from the infrared ray detection sensor 3, and in step 102, the output value of the human body detection signal is compared with the human body judgment reference value, and the vehicle is detected. It is determined whether or not the person 10 is present within a range where there is a risk of being caught by the rear wheel 16 of the vehicle 14. If it is determined that the output value of the human body detection signal is less than the human body determination reference value, the infrared detecting operation of the person 10 by the infrared detection sensor 3 is continued, and the presence or absence of the person 10 is determined each time.

If it is determined in step 102 that the person 10 is present within the danger zone when the vehicle 14 is bent, and the output value of the human body detection signal is equal to or higher than the human body determination reference value, then step At 103, the bending angle detection sensor 4 detects a bending signal. Then, in step 104, the output value of the bending signal is compared with the bending judgment reference value to judge whether or not the vehicle is in the bending progress state. If it is determined that the output value of the bending signal is greater than or equal to the bending determination reference value, the human body detection signal from the infrared detection sensor 3 is greater than or equal to the human body determination reference value,
Further, since the bending signal from the bending angle detection sensor 4 becomes equal to or more than the bending judgment reference value, the danger judging section 6 outputs a danger signal, and the warning means 8 receives the danger signal to notify the person 10 and the driver. Give a voice alert to your hand.

On the other hand, if the vehicle 14 is not bent and the output value of the bending signal is judged to be less than the bending judgment reference value, the rear wheels 16 of the vehicle 14 involve the person 10. Since the danger is small, it is not necessary to give a voice warning to the person 10 and the driver, and the operation after the infrared detection operation in step 101 is repeated.

According to the present embodiment, the infrared detecting sensor 3, the bending angle detecting sensor 4 and the danger judging section 6 are provided, and the signal output values outputted from the respective sensors in the danger judging section 6 are both judgment reference values. In the above case, since the notification means 8 has a configuration for issuing a voice warning, the vehicle 14 is bent, and the presence of the person 10 is confirmed within the dangerous range when the vehicle 14 is bent,
When there is a high possibility that an accident will occur, such as when the rear wheels 16 of the vehicle 14 involve the person 10 or the like, it is possible to automatically give a voice to the person 10 and the driver within a dangerous range regardless of the driver's operation. You can
It is possible to prevent the occurrence of the accident.

Further, as described above, since the notifying means 8 is activated to issue the voice warning only when the possibility of the accident occurring at the time of bending is high, the voice warning can be issued at an appropriate time, and the accident occurs. Is unlikely to occur, for example, when the vehicle 14 is stopped, or when the person 10 is not within the danger range when the vehicle 14 is bent, the notification means 8 may issue a useless voice warning. Absent.

Further, since the infrared detection sensor 3 is provided, even if the person 10 is passing through a blind spot where the rearview mirror 18 and the driver cannot visually see, the infrared detection sensor 3 ensures that the infrared detection sensor 3 can be used. The presence of the person 10 can be detected, and the driver is warned when the vehicle 14 is bent, and the driver recognizes that the accident is likely to occur and drives the vehicle 14. , The occurrence of accidents can be avoided.

In addition, the bending angle θ for both left and right turns
Since the bending angle detection sensor 4 that can detect
By installing the infrared detection sensor 3 and the notification means 8 not only on the left side surface of the vehicle 14 but also on the right side surface thereof, the same effect as that of the present embodiment can be obtained even when the vehicle 14 makes a right turn.

The present invention is not limited to the above-mentioned embodiment, and various embodiments can be adopted. For example, in the above embodiment, one infrared detection sensor 3 is installed on the left side surface of the vehicle 14 and one infrared detection sensor is installed on the rear side of the vehicle 14.
The range in which the infrared detection sensor 3 installed in the vehicle 14 can detect, the size of the vehicle 14 and the situation of use (for example, the vehicle 14
It will be installed at an appropriate position according to the conditions such as when the vehicle is exported to a country on the right side of the road and travels. Further, if a large number of infrared detection sensors 3 are installed on the left and right side surfaces and the rear portion of the vehicle 14 at different heights, a more accurate presence of the person 10 (even a small infant or the like) with respect to the vehicle 14 can be obtained. The position can be detected, and further, in order to classify the degree of danger (degree of danger), a plurality of human body judgment reference values are preset and given, and the danger judgment unit 6 outputs a signal output value from the infrared detection sensor 3. It is also possible to compare the human body judgment reference value with the human body judgment reference value to judge the degree of danger, output a danger signal corresponding to the degree of danger, and issue a voice warning corresponding to the degree of danger from the notification means 8.

Further, although the acceleration sensor is used as the bending angle detection sensor 4 in the above embodiment, a gyro (angular velocity sensor) may be used. By using the gyro, more accurate bending of the vehicle 14 is possible. The state can be detected.

Further, in the operation of the alarm device 1 according to the flow chart shown in FIG. 4 of the above-mentioned embodiment, the infrared detection sensor 3 starts detecting infrared rays of the person 10. Replacing the steps of detecting the music signal and detecting the infrared rays of the person 10 with the infrared ray detecting sensor 3,
It may be detected from the bending angle detection sensor 4.

[0032]

According to the present invention, an infrared ray detecting sensor for detecting infrared rays of a human body and a bending angle detecting sensor for detecting an angle at which a vehicle bends and advances are further provided. In comparison with each of the given judgment reference values, when both are above the judgment reference value, a danger judgment unit that outputs a danger signal is provided, so whether the vehicle is bent or not When a vehicle is bent, it can be determined whether the human body is in a dangerous range such as being caught by the rear wheel of the vehicle. When the vehicle is bent, the human body is in a dangerous area when the vehicle is bent. When it is determined that there is a high possibility of an accident such as involvement, a danger signal is output from the danger determination unit, and the warning signal is received from the notification means, automatically without the driver's operation, and People and luck within the danger range at the right time Toward the hand can be a voice warning the danger folding of the vehicle, it is possible to prevent the occurrence of an accident at the time of folding of the vehicle.

Further, as described above, at the time of bending, since the notification means is started only when the possibility of the accident occurring is high, it is possible to give a voice warning at an appropriate time, and useless sound (noise) from the notification means. ) Is never emitted.

Furthermore, by installing infrared detection sensors on both left and right side surfaces, it is possible to cope with a right turn.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a configuration of a vehicle notification device of the present invention.

FIG. 2 is an explanatory diagram showing a vehicle and a person provided with the vehicle notification device of the present embodiment.

FIG. 3 is an explanatory diagram showing an example of installation positions of an infrared detection sensor and a bending angle detection sensor.

FIG. 4 is a flowchart showing the operation of the vehicle alarm device of this embodiment.

FIG. 5 is a block diagram showing an example of a configuration of a conventional notification device.

FIG. 6 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

 1 Notification Device 3 Infrared Detection Sensor 4 Bending Angle Detection Sensor 6 Danger Judgment Section 8 Notification Means

Claims (1)

[Claims] 1. A bending angle detection sensor which is installed in a vehicle and detects an angle of bending of the vehicle; an infrared detection sensor which is installed on at least a left side surface of the vehicle and detects infrared rays of a human body; When the detection angle of at least the left turn detected by the bending angle detection sensor is equal to or greater than the predetermined bending determination reference value and the output of the infrared detection sensor is equal to or greater than the preset human body determination reference value, a danger signal is output. An informing device for a vehicle, comprising: a danger judging section for outputting; and a warning means for receiving a danger signal from the danger judging section to give a voice warning of a bending danger of the vehicle.