JPH0826052A - Alarm device for vehicle behind - Google Patents

Abstract

PURPOSE:To display the behavior of an own vehicle to the vehicle behind and permit the safe traveling of the vehicle behind by judging the degree of emergency on the basis of the input information, selecting the alarm information by a memory means on the basis of the degree of emergency and the input information, and outputting the selected alarm information on a display means from a controller. CONSTITUTION:Input means 1a-1i are installed for the input information, and the input information is inputted into a controller 2, and in a display information selection part 2a and an emergency degree judging part 2b, the degree of emergency is judged according to the vehicle speed 1a and the vehicle-vehicle distance which can be detected by a rearview camera 1e for the vehicle behind. Further, slip is judged through the comparison of the wheel speed by a sensor 1b, and the emergent brake application is judged by a longitudinal accelerating speed 1c. Similarly, the lateral turn is judged by a winker 1h. Further, the forward state is judged by a VICS 1g, navigation system 1f, and a frontview camera 1d, and the behavior of the own vehicle after several seconds or several minutes is judged by the controller 2, and the necessary information is selected from among the display information of a ROM 3 and displayed on a display part 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear vehicle alarm device for accurately displaying and transmitting the state of a vehicle to a rear vehicle.

[0002]

2. Description of the Related Art Conventionally, when the state of a host vehicle is transmitted to a rear vehicle, for example, when the host vehicle is parked or is about to be parked, this is displayed on the rear vehicle. -It is generally practiced to turn on a hazard lamp as a means of transmission. However, with only this hazard lamp, whether the displayed content is parked / stopped or in front of traffic,
For a rear vehicle that recognizes the content, it can only be judged by experience. In addition to the above, it is often considered that an accident can be prevented in advance and traveling can be made safe by transmitting the information to the rear vehicle. Although it is often convenient for safety by displaying and transmitting the information to the rear vehicle as described above, the present situation is that the display is made only by a few hazard lamps.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a rear vehicle alarm device for accurately displaying and transmitting the state of the own vehicle to the rear vehicle.

[0004]

SUMMARY OF THE INVENTION The present invention to achieve the above object is, in a rear vehicle alarm device for displaying the state of the own vehicle to the rear vehicle, of input information including external information and behavior information of the own vehicle. An input unit, a storage unit that stores in advance alarm information for guiding a vehicle behind, a display unit that displays the alarm information, and an emergency level is determined based on the input information. And a controller for selecting the alarm information to be displayed based on the above from the storage means and outputting the selected alarm information to the display means.

[0005]

By selecting the input information and extracting the content to be displayed on the rear vehicle based on this selection from the ROM and displaying it, a lot of appropriate information is brought to the rear vehicle as a message.

[0006]

EXAMPLES Examples of the present invention will now be described with reference to FIGS. FIG. 1 is a block diagram of the device configuration. In this embodiment, nine means are provided as means for obtaining input information. That is, the vehicle speed sensor 1a, the wheel speed sensor 1b, the longitudinal acceleration sensor 1c, the front-view camera 1d, the rear-view camera 1e, the navigation system 1f, the external information supply device 1g, the turn signal switch 1h, and the brake switch 1i. In addition to this, a means for obtaining input information each time can be appropriately selected according to the display content.

In the controller 2 to which the above-mentioned input means is connected, the information obtained by the input means is processed. This processing is performed by the display information selection section 2a and the urgency level judgment section 2b.
The former selects the information obtained based on the input information from the contents stored in the ROM 3 which is preset whether or not the information to be notified to the rear vehicle, and the latter,
It is to judge how urgent the contents to be notified are.

As a result, the information to be notified to the rear vehicle based on the input information is selected and displayed on the display unit 4 while considering the urgency as shown in FIG.

Further, a concrete description will be given. As the input information of the own vehicle, "vehicle speed", "wheel speed", "longitudinal acceleration", "image information of front-view camera", "image information of rear-view camera", and "external information supply device" are input from the above-mentioned input means 1a to 1i. For example, curve curvature, congestion, weather, road surface information "
The information shown in Table 1 such as "curve curvature, road surface, traffic jam information by the navigation system" can be obtained.

[0010]

[Table 1]

These are input to the controller 2, and are displayed by the display information selection unit 2a and the emergency level determination unit 2b, for example, by the "vehicle speed" and the "inter-vehicle distance detectable by the rear-view camera 1e" with the rear vehicle. The degree of danger (urgency) can be determined, "slip" can be determined by comparing the four "wheel speeds" with the sensor 1b, and if "longitudinal acceleration" is detected, for example, "quick braking" Can judge. Similarly, a right or left turn can be determined by the "winker". In this way, the behavior of the host vehicle can be determined.

Furthermore, the state in front of the vehicle is "VICS".
By using the “navigation system” and the “front view camera”, the behavior of the host vehicle after a few seconds and a few minutes can be predicted. The controller 2 determines or predicts these behaviors, then selects from the display information preset in the ROM 3 and displays them appropriately according to the degree of urgency. The contents displayed on the display unit 4 are specifically those shown in [Table 2].

[0013]

[Table 2]

[Table 3] shows the display method.

[Table 3]

As shown in [Table 2] and [Table 3], the book
The display information in the embodiment is, for example, one display information.
It is assumed that it is represented by 8-bit code information.
Display contents with upper 6 bits (bit 0 to bit 5)
And display status in the lower 2 bits (bit 6, bit 7)
(Display color). If you do this,
2 ⁶= 64 display contents, 2²= 4 different display states
The state can be selected. 64 × 4 = 265 as a whole
Display information of the cage can be realized. Note that the amount of information (bit
The number itself depends on the type and number of display contents and display status.
It can be decided appropriately and is limited to 8 bits
is not.

The display information represented by the display content and the display method (color etc.) may be, for example, four types of display even if the display content is the same.
Is a different code from the green "beyond", and a different display method is used such as red blinking which is a combination of red and off. And this combination has a display color such as red, depending on the degree of urgency.
It can be used properly like green and orange. In other words, if the "vehicle speed" is greater than the set value and the "inter-vehicle distance" is less than or equal to the set value, the emergency level is displayed as "emergency", that is, "red",
If the "vehicle speed" is less than or equal to the set value and the "inter-vehicle distance" is greater than the set value, the urgency is displayed as "margin" or "green". If the vehicle speed is less than or equal to the set value and the "inter-vehicle distance" is less than or equal to the set value, The display is performed as "normal", that is, "orange".

Further, the display contents can be combined according to the urgency level. For example, when the urgency level is low (there is a margin), "this point" + "a sharp curve" + "! Attention!"
Is displayed continuously, and when the degree of urgency is high (there is no margin), only "a sharp curve" may be displayed.
Further, as another display example, only “! Vehicle distance!” May be displayed in the case of “urgent”, and “! Vehicle distance!” + “! Caution!” May be displayed in the case of “normal” and “margin”. Regarding the urgency, judgment is made on various input information other than this, for example, a navigation system or external information (VIC).
When the information that "there is a signal ahead" is obtained from S), the urgency is derived in relation to the "inter-vehicle distance" and the vehicle speed,
The combination of the display contents of "this ahead", "! Signal!", And "! Attention!" And the display color will be determined. The stop of the vehicle can be displayed by stopping the output of the vehicle speed sensor 1a, or "! Abnormal!" Is displayed when a failure signal is output from the controller of the vehicle. Thus, in the present embodiment, the display color (display method) and the display content are appropriately set according to the urgency, and the combination of the display contents is also appropriately set according to the urgency.

FIG. 3 is an illustration of a message panel that may be displayed by the system described above, showing the message panel 10 mounted at the rear of the vehicle and at the portion facing the rear vehicle. In this message panel 10, a message board 10a is incorporated in a case and an acrylic cover is attached on the message board 10a. A large number of red and green LEDs are arranged on the message board 10a to form a light emitting surface 10b. In this case, as shown in FIG. 4, since the level of stimulating human vision is different between red and green, the red and green levels are set to the same level on the message panel 10 with respect to the rear lane reference. It has a set angle (for example, 6 °). With this consideration, the levels at which red and green can be seen become the same level.

[0019]

As described above, in the present invention,
By displaying and transmitting the behavior of the own vehicle to the rear vehicle, safe traveling of the rear vehicle can be obtained.

[Brief description of drawings]

FIG. 1 is an overall block diagram.

FIG. 2 is an operation flowchart.

FIG. 3 is an attachment diagram of an example of a message panel.

FIG. 4 is a characteristic diagram of red and green.

[Explanation of symbols]

 1 input means 2 controller 3 ROM 4 display

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Takahiro Maemura 5-3-8 Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation (72) Inventor Tadao Tanaka 5-33-8 Shiba, Minato-ku, Tokyo Within Mitsubishi Motors Corporation

Claims (1)

[Claims] 1. A rear vehicle alarm device for displaying the state of the own vehicle to a rear vehicle, comprising: input means for input information including external information and behavior information of the own vehicle; and alarm information for guiding the rear vehicle. A storage unit that is stored in advance, a display unit that displays alarm information, an urgency level is determined based on the input information, and alarm information to be displayed based on the urgency level and the input information is output from the storage unit. A rear vehicle alarm device, comprising: a controller that selects and outputs the selected alarm information to the display means.