JP2017145651A - Safety system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety system for improving safety even on a road having a blind area.SOLUTION: There is adopted a safety system comprising: first detection means (cameras 12a, 12b) for detecting a detection target at a first position; second detection means (a camera 22) for detecting a detection target at a second position; light emitting means (a display lamp 14) provided in the vicinity of the first detection means; and a control unit (11) for making the light emitting means emit light when at least one of the first detection means and the second detection means detects a detection target.SELECTED DRAWING: Figure 1

Description

One aspect of the present invention relates to a safety system that is attached to a curved mirror and informs a driver of an automobile of the situation.

  Conventionally, curved mirrors have been placed on roads with poor visibility, making it easier to confirm that other cars are coming from the driver's blind spot. Further, as an improvement of such a curve mirror, a curve information device having a configuration including a video display instead of the mirror is disclosed (Patent Document 1). Also disclosed is a configuration in which a light emitter and a sensor are provided on a curve mirror and the light emitter emits light when a moving body is present at a specific location (Patent Document 2). Also disclosed is an apparatus that installs a camera on a curved mirror and transmits captured video data (Patent Document 3).

Japanese Patent Laying-Open No. 2015-215858 Noto 316587 gazette JP 2008-52493 A

  The curve mirror having the conventional configuration as described above may not be able to obtain a sufficient effect in an environment such as rainy weather or at night when it is difficult for the driver to visually recognize the curve mirror. In addition, even a steep curve that is difficult to check with a curve mirror may not provide a sufficient effect. In addition, in the techniques described in Patent Document 2 and Patent Document 3, since the driver is provided with a light emitting body that is easy for the driver to visually recognize, the driver can detect the presence of other automobiles even in an environment where the curve mirror is difficult to visually recognize. Although there is an advantage that it can be confirmed, since the sensor is integrated with the curved mirror to the last, if there is another car etc. in the place where the sensor is blind spot, the presence of other car etc. is specified by the blind spot In some cases, sufficient effects could not be obtained.

  The present invention adopts the following means in order to solve the above problems. In the following description, in order to facilitate understanding of the invention, reference numerals and the like in the drawings are appended in parentheses, but each component of the present invention is not limited to these appendices. It should be construed broadly to the extent that contractors can technically understand.

One means of the present invention is to
First detection means (cameras 12a, 12b) for detecting a detection target at the first position;
Second detection means (camera 22) for detecting a detection target at the second position;
A light emitting means (indicator 14) disposed in the vicinity of the first detecting means;
And a control unit (11) that causes the light emitting means to emit light when at least one of the first detecting means and the second detecting means detects a detection target.

  According to the safety system having the above configuration, the light emitting unit can be caused to emit light according to the detection result of the second detection unit arranged at a location distant from the light emitting unit. As a result, for example, the second curve mirror and the second detection means are arranged at a position where a car or bicycle in a place where the driver becomes a blind spot away from the first curve mirror can be detected. Even in many places, it is possible to tell the driver that other cars are approaching. In other words, the traffic situation can be communicated to the driver of the car trying to turn the curve. In addition, the curve mirror can inform the driver of the presence of bicycles and children that are difficult to see.

In the safety system, preferably
The first detecting means and the light emitting means are configured integrally with a curve mirror.

  According to the safety system having the above-described configuration, it is possible to create an environment in which a dangerous state can be transmitted to an automobile driver or the like simply by being attached to an existing curve mirror.

The figure which shows the example of arrangement | positioning of a safety system. The figure which shows the structure of the 1st curve mirror arrange | positioned at an intersection. The figure which shows the structure of the 2nd curve mirror arrange | positioned in a blind spot position. The flowchart which shows the process in a 2nd curve mirror. The flowchart which shows the process in a 1st curve mirror. The flowchart which shows the sub process in a 1st curve mirror. The figure which shows the structure of a curve mirror system. The figure which shows the example of arrangement | positioning of the safety system of Embodiment 2.

An embodiment according to the present invention will be specifically described according to the following configuration with reference to the drawings. However, the embodiment described below is merely an example of the present invention and does not limit the technical scope of the present invention. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and the description may be abbreviate | omitted.
1. Embodiment 1
2. Embodiment 2
3. Supplementary matter

<1. Embodiment 1>
The safety system of the present embodiment is configured to include a first curve mirror and a second curve mirror, and can detect other automobiles or the like passing through a place where the driver can visually recognize the first curve mirror. The second curve mirror is provided with the camera, and the indicator lamp mounted on the first curve mirror blinks in response to detection of the second curve mirror. This will be specifically described below.

  FIG. 1 is a diagram illustrating an overall arrangement example of the safety system according to the present embodiment. As shown in FIG. 1, the safety system of this embodiment includes a first curve mirror 10 and a second curve mirror 20. The 1st curve mirror 10 is arrange | positioned at a T-junction, for example. For example, the second curve mirror is arranged at a position where the camera 22 can detect (capture) the vehicle 40b in a blind spot from the driver of the vehicle 40a in a position where the first curve mirror 10 is visible.

<First curve mirror 10>
FIG. 2 is a diagram showing a specific configuration of the first curve mirror 10. As shown in FIGS. 1 and 2, the first curve mirror 10 includes a control unit 11, cameras 12 a and 12 b, curve mirrors 13 a and 13 b, an indicator lamp 14, and a support column 15. Each configuration of the first curve mirror 10 is attached to the support column 15. The control unit 11 and the indicator lamp 14 are directly attached to the column 15. A camera 12a is arranged above the curve mirror 13a arranged in the first direction (for example, the right side) of the T-junction, and the curve mirror 13b is arranged in the second direction (for example, the left side) of the T-junction. A camera 12b is disposed on the top of the camera.

<Curve mirrors 13a and 13b>
Each of the curve mirrors 13a and 13b is a conventional curve mirror and is constituted by a mirror.

<Cameras 12a and 12b>
The cameras 12a and 12b are arranged in a first direction (right direction) and a second direction (left direction), respectively, and image the respective directions and detect a moving body such as a vehicle, a bicycle, or a person. Configured to be able to. The detection result of the moving body by the cameras 12a and 12b is output to the control unit 11. In addition, the imaging results of the cameras 12a and 12b may be recorded as an image on a recording unit (not shown) arranged integrally with the first curve mirror 10. Note that detection targets such as vehicles, bicycles, and people are collectively referred to as “moving bodies”. The detection of the moving body is not necessarily limited to detecting the state in which the moving body is moving, but refers to detecting the presence of the moving body.

<Indicator 14>
The indicator lamp 14 is configured by a light emitter such as an LED or an electric lamp that can emit light under the control of the control unit 11. The indicator lamp 14 is divided into a right indicator lamp and a left indicator lamp, and is configured to be able to emit light independently. The indicator lamp 14 blinks when the camera 12a of the first curve mirror 10 or the camera 22 of the second curve mirror 20 detects a moving object, and the camera 12b of the first curve mirror 10 detects the moving object. When it detects, the indicator lamp corresponding to the detection direction of a moving body will blink so that a left indicator lamp may blink.

<Control unit 11>
The control unit 11 controls the display state such as blinking the indicator lamp 14 according to the detection result of the moving body by the cameras 12a and 12b and the camera 22 of the second curve mirror 20. More specifically, the control unit 11 receives a detection result wirelessly transmitted from the camera 22 of the second curve mirror 20 via the control unit 21. And the control part 11 blinks the indicator lamp 14 by the 1st method according to the detection result of the moving body by the cameras 12a and 12b, and sets the indicator lamp 14 to the 2nd according to the detection result of the moving object by the camera 22. Flash in the way. Specific operation of the safety system including the control unit 11 will be described later.

<Second curve mirror 20>
FIG. 3 is a diagram showing a specific configuration of the second curve mirror 20. As shown in FIGS. 1 and 3, the second curve mirror 20 includes a control unit 21, a camera 22, a curve mirror 23, an indicator lamp 24, and a support column 25. The second curve mirror 20 is configured by attaching each component to a support column 25. The control unit 21 is directly attached to the support column 25. A camera 22 is arranged above the curve mirror 23 arranged so that the end of the curve can be visually recognized.

<Curve mirror 23>
The curve mirror 23 is a conventional curve mirror and is constituted by a mirror.

<Camera 22>
The camera 22 is arranged so as to face the end of the curve, and is configured to be able to detect a moving body such as a vehicle, a bicycle, or a person while imaging the direction. The detection result of the moving body by the camera 22 is output to the control unit 21. In addition, the imaging result of the camera 22 may be recorded as an image on a recording unit (not shown) arranged integrally with the second curve mirror 20.

<Indicator 24>
The indicator lamp 24 is configured by a light emitter such as an LED or an electric lamp that can emit light under the control of the control unit 21.

<Control unit 21>
The control unit 21 is configured to wirelessly transmit the detection result of the moving object by the camera 22 to the control unit 11 of the first curve mirror 10. Note that the transmission of the detection result from the control unit 21 to the control unit 11 is not necessarily performed wirelessly.

<Operation of safety system>
Next, the operation of the safety system will be described with reference to FIGS. FIG. 4 is a flowchart showing processing (mainly processing by the control unit 21) in the second curve mirror 20. FIG. 5 is a flowchart showing main processing (mainly processing by the control unit 11) in the first curve mirror 10. FIG. 6 is a flowchart showing sub-processing (mainly processing by the control unit 11) in the first curve mirror 10. In the following description of the operation, the operation when the indicator lamp 14 of the first curve mirror 10 blinks when the moving body is detected by the camera 22 of the second curve mirror 20, which is a characteristic part of the present embodiment, is mainly described. Explained.

<S200 to S210>
First, processing in the second curve mirror 20 will be described with reference to FIG. When the process is started (S200), the control unit 21 of the second curve mirror 20 checks whether or not the camera 22 has detected a moving body (S210). Detection of the moving object by the camera 22 is performed by image processing or the like.

<S220>
When the camera 22 detects a moving body (Y in S210), the detection result (detection notification) by the camera 22 is wirelessly transmitted to the control unit 11 of the first curve mirror 10 via the control unit 21 (S220).

<S230>
Next, the control unit 21 confirms whether or not the camera 22 has finished detecting the moving body (S230). More specifically, it is confirmed by image processing or the like that the moving body has disappeared from the location captured by the camera 22 due to movement.

<S240 to S250>
When the camera 22 finishes detecting the moving body (Y in S230), the control unit 21 wirelessly transmits to the control unit 11 of the first curve mirror 10 that the moving body is no longer detected (detection end notification) (S240). ), The process is terminated (S250).

<S300 to S320>
Next, main processing in the first curve mirror 10 will be described with reference to FIG. When the process is started (S300), the control unit 11 of the first curve mirror 10 checks whether or not the right camera 12a has detected a moving body (S310). The control unit 11 further confirms whether or not the left camera 12b has detected a moving body (S320). When the right camera 12a or the left camera 12b detects a moving body, the process proceeds to the sub-process shown in FIG.

<S330>
The control unit 11 further confirms whether or not a detection notification indicating that the camera 22 has detected a moving object has been received from the control unit 21 of the second curve mirror 20 (S330). If the detection notification has not been received (N in S330), the processing from S310 is repeated.

<S340>
When the control unit 11 receives a detection notification from the control unit 21 of the second curve mirror 20 (Y in S330), the control unit 11 starts blinking the right side display lamp of the indicator lamp 14. At this time, the right side indicator lamp of the indicator lamp 14 blinks at a predetermined time interval (for example, every 2 seconds or 1 second).

<S350>
Next, the control unit 11 confirms whether or not the detection end notification indicating that the camera 22 has finished detecting the moving body has been received from the control unit 21 of the second curve mirror 20 (S350). If the detection end notification has not been received (N in S350), the process is repeated. At this time, the right side indicator lamp of the indicator lamp 14 continues to blink for a predetermined time (for example, at intervals of 2 seconds or at intervals of 1 second).

<S360 to S370>
When the control unit 11 receives a detection end notification from the control unit 21 of the second curve mirror 20 (Y in S350), the control unit 11 blinks the right indicator lamp of the indicator lamp 14 for a predetermined time (for example, 10 seconds or 15 seconds). ) After the elapse of time (S360), the main process ends (S370).

<S400>
Next, sub processing in the first curve mirror 10 will be described with reference to FIG. This process is a process performed when the camera 12a or 12b of the first curve mirror 10 detects a moving body. The control unit 11 of the first curve mirror 10 starts blinking the right side indicator lamp or the left side indicator lamp of the indicator lamp 14 corresponding to the camera 12a or 12b that has detected the moving body (S400). At this time, the indicator lamp 14 blinks at a predetermined time interval (for example, 0.5 second interval or 0.1 second interval).

<S410 to S430>
Next, the control unit 11 checks whether either the right camera 12a or 12b that has detected the moving body has finished detecting the moving body (S410). When either the right camera 12a or 12b that has detected the moving body finishes detecting the moving body (Y in S410), the blinking of the indicator lamp 14 is terminated after a predetermined time (for example, 10 seconds or 15 seconds) has elapsed (S420). ), The sub-process is terminated (S430).

  According to the safety system described above, it is possible to cause the indicator lamp 14 to emit light according to the detection result of the camera 22 of the second curve mirror 20 arranged at a location away from the indicator lamp 14. As a result, for example, the second curve mirror 20 and the camera 22 are arranged at a position where a car or bicycle in a place where the driver becomes a blind spot away from the first curve mirror 10 can be detected. Even in many places, it is possible to tell the driver that other cars or bicycles are approaching. In other words, the traffic situation can be communicated to the driver of the car trying to turn the curve. In addition, the curve mirror can inform the driver of the presence of bicycles and children that are difficult to see.

  In the safety system described above, the right indicator lamp of the indicator lamp 14 blinks at a predetermined time interval (for example, 0.5 second interval or 0.1 second interval) when a moving object is detected by the camera 12a. Then, when a moving body is detected by the camera 22 of the second curve mirror 20, it is controlled to continue blinking at a predetermined time interval (for example, every 2 seconds or 1 second). Thereby, for example, the driver who watches the indicator light 14 can check whether a moving body such as another automobile or a bicycle is in a near place or a slightly far place such as a curve ahead. It becomes like this.

  FIG. 7 is a diagram showing a system including a plurality of curve mirrors. In this curve mirror system, imaging results obtained by a camera mounted on the curve mirror are accumulated as recording data in a management server, and statistical processing is performed by the management server, thereby changing the light emission timing of the indicator lamp in the curve mirror.

  As shown in FIG. 7, the curve mirror system includes a plurality of curve mirrors from curve mirror A 100 a to curve mirror D 100 d and a management server 110. Each of the curve mirror A100a to the curve mirror D100d is equipped with a camera as shown in FIG. 2 or FIG. 3, images the state of the target portion, and wirelessly or wiredly connects the management result to the management server 110 as recorded data. Sent.

  The management server 110 obtains various data by extracting and statistically processing data such as automobile traffic volume, traffic volume, passing vehicle speed, and road environment from the input recorded data. To do. Based on the various statistical data acquired in this way, the management server 110 adjusts the blinking interval of the indicator lamps in each curve mirror. Such statistical data can also be used for the control of road conditions. In addition, when an accident occurs, it is possible to check the situation at the time of the accident. In addition, it is possible to measure the amount of vehicle traffic during the day and at night and use it as materials for urban improvement proposals.

<2. Second Embodiment>
Next, Embodiment 2 of the present invention will be described. In this embodiment, as compared with the first embodiment, the curve mirror has a function of wirelessly communicating information to the vehicle.

  FIG. 8 is a diagram illustrating an arrangement example of the safety system according to the present embodiment. As shown in FIG. 8, the safety system of this embodiment includes a third curve mirror 30 having a control unit 31, cameras 32 a and 32 b, a curve mirror 33, and an indicator lamp 34. The third curve mirror 30 is different from the first curve mirror 10 in that the control unit 31 has a function of wirelessly transmitting information to the vehicle.

  That is, the control unit 31 has a function of wirelessly communicating the traffic state with respect to the vehicle 40c passing through the vicinity. The control unit 31 blinks the indicator lamp 34 and wirelessly communicates information related to the detection result of the moving body detected by, for example, the camera 32b to the vehicle 40c. Moreover, the control part 31 transmits the surrounding map information, the optimal traveling speed, information regarding a time zone with many pedestrians and bicycles, and the like to the vehicle 40c.

  In the safety system of the present embodiment, it is possible to further improve safety by providing the function of wirelessly communicating information to the vehicle as described above.

<3. Supplementary items>
The specific description of the embodiment of the present invention has been given above. The above description is merely an embodiment, and the scope of the present invention is not limited to this embodiment, and is broadly interpreted to the extent that a person skilled in the art can grasp based on the same technical idea. is there.

  In the safety system of the above-described embodiment, the configuration in which each of the curve mirrors includes a camera has been described as an example. However, it is not always necessary to be a camera, and the moving body may be replaced with a sensor that can be detected. However, a configuration including a camera is preferable because an imaging result at an imaging target position can be recorded.

  In the safety system, the control unit 21 and the camera 22 are arranged integrally with the second curve mirror 20, but the control unit 21 and the camera 22 may be arranged separately from the curve mirror. However, a configuration in which the control unit and the camera are arranged integrally with the curve mirror is preferable because the existing curve mirror can be effectively used.

  Further, in the above safety system, the first curve mirror 10 is arranged on the T-junction and the second curve mirror 20 is arranged on the curve ahead of the T-junction. However, the arrangement is limited to such an arrangement. Rather, it can be used in various scenes (crossroads, etc.).

  The safety system of the present invention is suitably applied to, for example, a traffic safety system arranged integrally with a curve mirror.

DESCRIPTION OF SYMBOLS 10 ... 1st curve mirror 11 ... Control part 12a, 12b ... Cameras 13a, 13b ... Curve mirror 14 ... Indicator lamp 15 ... Prop 20 ... Curve mirror 21 ... Control part 22 ... Camera 23 ... Curve mirror 24 ... Indicator lamp 25 ... Prop DESCRIPTION OF SYMBOLS 30 ... Curve mirror 31 ... Control part 32a, 32b ... Camera 33 ... Curve mirror 34 ... Indicator lamp 40a, 40b, 40c ... Vehicle 100a-100d ... Curve mirror 110 ... Management server

Claims (2)

First detection means for detecting a detection object at a first position;
Second detection means for detecting a detection target at the second position;
A light emitting means disposed in the vicinity of the first detecting means;
A safety system comprising: a control unit that causes the light emitting means to emit light when at least one of the first detecting means and the second detecting means detects a detection target. The first detection means and the light emitting means are configured integrally with a curve mirror;
The safety system according to claim 1.

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