JP6596055B2 - Emergency vehicle notification device - Google Patents

Description

  The present invention relates to a notification device mounted on an emergency vehicle such as an ambulance.

  2. Description of the Related Art Conventionally, a diffused warning lamp device that switches a warning sound of a warning sound generating unit and a lighting pattern of a warning lamp according to a warning mode of an emergency vehicle has been proposed (for example, see Patent Document 1).

JP 2007-294128 A

  In the diffused warning lamp device described in Patent Document 1, for example, at an intersection, another vehicle or a pedestrian entering the intersection from a direction intersecting the traveling direction of the emergency vehicle has a strong sound field in front of the emergency vehicle. And the field of view is blocked by a building or the like, so that it is difficult to recognize the warning sound from the emergency vehicle and the warning light of the emergency vehicle.

  Even if another vehicle is traveling in the same direction as or facing the emergency vehicle, if you are playing music or talking in another vehicle, the warning sound from the emergency vehicle and the emergency vehicle You may not notice the warning light. In other words, the conventional diffused warning lamp device has a problem that the awareness of emergency vehicles is low depending on the environment.

  The present invention has been made to solve the above-described problems, and an object thereof is to obtain an emergency vehicle notification device that can improve the recognition of an emergency vehicle.

  The alarm device for an emergency vehicle according to the present invention includes a warning sound generation unit that generates a warning sound in a direction crossing the traveling direction of the emergency vehicle while generating a warning sound in the traveling direction of the emergency vehicle. Here, the warning sound generating unit is a plurality of installed speakers, an array speaker combining the speakers, or an ultrasonic speaker.

  Thereby, a warning sound is generated in a direction crossing the traveling direction of the emergency vehicle.

  Therefore, the cognition of the emergency vehicle can be improved.

  In addition, a control unit that controls the operation of the warning sound generation unit is further provided. When the control unit detects that the emergency vehicle enters the intersection based on the driving state of the emergency vehicle, the warning sound generation unit A warning sound is generated in a direction crossing the traveling direction of the vehicle.

  Thereby, a warning sound is generated toward other vehicles and pedestrians entering the intersection from a direction intersecting with the traveling direction of the emergency vehicle, and the awareness of the emergency vehicle can be improved.

  In addition, a control unit that controls the operation of the warning sound generation unit is further provided, and the control unit indicates that the emergency vehicle is about to avoid or overtake the vehicle ahead based on the driving state of the emergency vehicle. If it is detected, the warning sound generation unit generates a warning sound toward the vehicle ahead.

  As a result, a warning sound is generated toward the vehicle ahead that the emergency vehicle is trying to avoid or overtake, and the cognition of the emergency vehicle can be improved.

  In addition, the alarm device for an emergency vehicle according to the present invention includes a warning display unit that notifies at least one of the approach of the emergency vehicle and the vehicle status of the emergency vehicle to the periphery of the emergency vehicle.

  Thereby, at least one of the approach of the emergency vehicle and the vehicle status of the emergency vehicle is notified around the emergency vehicle.

  Therefore, the cognition of the emergency vehicle can be improved.

  The warning display unit is a spot light generation unit provided in the front part of the emergency vehicle, and further includes a control unit that controls the operation of the spot light generation unit, and the control unit is based on the driving state of the emergency vehicle. When a vehicle traveling in the front in the same lane as the emergency vehicle is detected, the spot light generator is caused to generate spot light toward the vehicle ahead.

  Thereby, spotlight is generated toward a vehicle traveling ahead in the same lane as the emergency vehicle, and the recognition of the emergency vehicle can be improved.

  The warning display unit is a diffused warning light provided on the upper part of the emergency vehicle, and further includes a control unit that controls the operation of the diffused warning light, and the control unit is based on the driving state of the emergency vehicle. The flashing warning light is flashed in a flashing pattern according to the vehicle status of the emergency vehicle.

  As a result, the diffused warning light flashes in a flashing pattern according to the vehicle status of the emergency vehicle, and the vehicle status of the emergency vehicle is notified to the vehicles and pedestrians around the emergency vehicle, thereby recognizing the emergency vehicle. Can be improved.

  The warning display unit is a diffused warning light provided on the upper part of the emergency vehicle, and further includes a control unit that controls the operation of the diffused warning light, and the control unit is based on the driving state of the emergency vehicle. Thus, when it is detected that the vehicle status of the emergency vehicle changes, the diffused warning light is caused to emit light stronger than normal.

  As a result, the change in the vehicle status of the emergency vehicle is notified to the vehicles and pedestrians around the emergency vehicle by the diffused warning light emission stronger than normal, and the cognition of the emergency vehicle can be improved. .

  The warning display unit is a display provided at the rear of the emergency vehicle, and further includes a control unit that controls the operation of the display unit. The control unit is configured to control the vehicle of the emergency vehicle based on the driving state of the emergency vehicle. Display the status on the display.

  As a result, the vehicle status of the emergency vehicle is displayed on the display, the vehicle status of the emergency vehicle is notified to the vehicles and pedestrians around the emergency vehicle, and the awareness of the emergency vehicle can be improved.

  According to the emergency vehicle notification device of the present invention, it is possible to improve the recognition of an emergency vehicle.

It is a front view showing an ambulance equipped with a notification device for an emergency vehicle according to an embodiment of the present invention. It is a rear view which shows the ambulance equipped with the alerting | reporting apparatus of the emergency vehicle which concerns on embodiment of this invention. It is a block block diagram which shows the alerting | reporting apparatus of the emergency vehicle which concerns on embodiment of this invention. In the emergency vehicle alarm device according to the embodiment of the present invention, it is an explanatory diagram showing the control of the main control unit when an ambulance enters an intersection in comparison with the conventional one. In the emergency vehicle notification device according to the embodiment of the present invention, it is an explanatory view showing the control of the main control unit in comparison with the conventional case when the ambulance is trying to avoid or overtake the vehicle ahead. . It is a flowchart which shows the control which the main control part in the alerting | reporting apparatus of the emergency vehicle which concerns on embodiment of this invention performs with respect to a siren speaker. In the emergency vehicle notification device according to the embodiment of the present invention, it is an explanatory diagram showing the control of the main control unit when a vehicle traveling ahead in the same lane as the ambulance is detected. In the emergency vehicle notification device according to the embodiment of the present invention, when the vehicle status of the ambulance changes, it is an explanatory diagram showing the control of the main control unit when the vehicle status of the ambulance is notified to the surroundings. It is a flowchart which shows the control which the main control part in the alarm device of the emergency vehicle which concerns on embodiment of this invention performs with respect to a spotlight, a front diffused warning light, a rear diffused warning light, and a status indicator.

  Hereinafter, preferred embodiments of an emergency vehicle alarm device according to the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts will be described with the same reference numerals. In the following embodiment, the case where the emergency vehicle is an ambulance will be described as an example. However, the present invention is not limited to this, and the emergency vehicle may be a fire truck or a police car. The alarm device for an emergency vehicle according to the present invention is a device that can be attached to and detached from the emergency vehicle, and is attached so that the front-rear direction of the emergency vehicle coincides with the front-rear direction of the warning sound generation unit and the warning display unit.

  FIG. 1 is a front view showing an ambulance equipped with an emergency vehicle notification device according to an embodiment of the present invention. FIG. 2 is a rear view showing an ambulance equipped with the emergency vehicle notification device according to the embodiment of the present invention.

  1 and 2, an ambulance 1 includes a siren speaker 2, a spotlight 3 (spot light generating unit), a front diffused warning light 4 (scattered warning light), and a rear diffused warning light 5 (diffused light). Type warning light) and a status indicator 6 (indicator).

  The siren speaker 2 is provided, for example, at the upper front portion of the ambulance 1 and generates a warning sound (a message such as poppy, pow, woo, and voice synthesis), and a passenger of the ambulance 1 emits it via a microphone (not shown). Amplify and output audio. In addition, the attachment position of the siren speaker 2 is not limited to the upper front part of the ambulance 1. The siren speaker 2 generates a warning sound with respect to the traveling direction of the ambulance 1 and also generates a warning sound with respect to the direction intersecting the traveling direction of the ambulance 1. And a plurality of speakers including a speaker oriented in the horizontal direction.

  Thereby, since the warning sound is generated in the direction intersecting the traveling direction of the ambulance 1, the cognitive ability of the ambulance 1 can be improved.

  The spotlight 3 is provided in the front part of the ambulance 1 and generates spot light. Further, the front diffused warning light 4 and the rear diffused warning light 5 are respectively provided at the upper front part and the upper rear part of the ambulance 1, and emit light over the entire circumference. The status indicator 6 is provided at the rear of the ambulance 1 and displays characters and patterns.

  Thereby, since at least one of the approach of the ambulance 1 and the vehicle situation of the ambulance 1 is notified to the vehicles and pedestrians around the ambulance 1, the recognition of the ambulance 1 can be improved.

  FIG. 3 is a block configuration diagram showing the emergency vehicle notification device according to the embodiment of the present invention. In FIG. 3, this emergency vehicle notification device includes a vehicle signal acquisition unit 10, an operation unit 20, an outside illumination detection unit 30, an image recognition camera 40, a radar 50, an ITS (Intelligent Transport Systems) signal reception unit 60, and position information acquisition. Part 70 and control part 100.

  The control unit 100 includes a traffic state recognition unit 101, a main control unit 102 (control unit), a sound field control unit 103, a light source direction control unit 104, and a lighting pattern control unit 105. Here, the control part 100 is comprised with the microprocessor which has CPU (Central Processing Unit) and the memory | storage part which stored the program.

  The vehicle signal acquisition unit 10 acquires various signals related to the ambulance 1 and outputs the signals to the main control unit 102. Specifically, the vehicle signal acquisition unit 10 acquires the turn switch or hazard switch operation of the ambulance 1, the vehicle speed of the ambulance 1, the brake operation of the ambulance 1, the steering angle of the ambulance 1, and the like as the vehicle signal. Output to the control unit 102.

  The operation unit 20 is, for example, an operation panel such as a siren amplifier provided in the ambulance 1, and switches such as a warning light switch, a siren switch, a voice reproduction switch, an intersection switch, an automatic / manual switch, a display character selection switch, and the like. Has been placed. The operation unit 20 also outputs operation states of various switches on the operation panel to the main control unit 102. The outside illuminance detection unit 30 detects the illuminance around the ambulance 1 and outputs it to the main control unit 102.

  The image recognition camera 40 acquires an image of the entire circumference including at least the front of the ambulance 1, and outputs the acquired image to the traffic state recognition unit 101 together with the result of image recognition. Specifically, the image recognition camera 40 recognizes a signal in front of the ambulance 1, other vehicles existing in front of the ambulance 1, rear glasses of other vehicles, mirrors, and the like.

  The radar 50 calculates the distance and relative speed with other vehicles traveling in front of the ambulance 1, and outputs the calculation result to the traffic state recognition unit 101. The ITS signal receiving unit 60 acquires information on the presence of other vehicles and the signal display by road-to-vehicle communication or vehicle-to-vehicle communication, and outputs the information to the traffic state recognition unit 101.

  The position information acquisition unit 70 includes map information 71, a GPS signal reception unit 72, and a WiFi reception unit 73. The position information acquisition unit 70 grasps the road shape from the map information 71, acquires the relationship between the position of the ambulance 1 and the road shape received by the GPS signal reception unit 72 and the WiFi reception unit 73, and the traffic state recognition unit 101. Output to.

  The traffic state recognition unit 101 recognizes the traffic states of the ambulance 1 and other vehicles based on the outputs from the image recognition camera 40, the radar 50, the ITS signal reception unit 60, and the position information acquisition unit 70, and the main control unit 102 Output to. The traffic state is, for example, a state where there is an intersection in front of the ambulance 1, the signal is red, and other vehicles are parked waiting for the signal.

  The main control unit 102 generates a warning sound generated by the siren speaker 2 based on the driving state of the ambulance 1 output from the vehicle signal acquisition unit 10, the operation unit 20, the outside illuminance detection unit 30, and the traffic state recognition unit 101. The field and volume are determined and output to the sound field control unit 103. The sound field control unit 103 generates a warning sound from the siren speaker 2 based on the output from the main control unit 102.

  In addition, the main control unit 102 generates spotlight generated by the spotlight 3 based on the driving state of the ambulance 1 output from the vehicle signal acquisition unit 10, the operation unit 20, the outside illuminance detection unit 30, and the traffic state recognition unit 101. Are determined and output to the light source direction control unit 104 and the lighting pattern control unit 105. The light source direction control unit 104 and the lighting pattern control unit 105 generate spot light from the spotlight 3 based on the output from the main control unit 102.

  Further, the main control unit 102, based on the driving state of the ambulance 1 output from the vehicle signal acquisition unit 10, the operation unit 20, the outside illuminance detection unit 30, and the traffic state recognition unit 101, The blinking pattern of the rear diffused warning light 5 and the display content on the status indicator 6 are determined and output to the lighting pattern control unit 105. Based on the output from the main control unit 102, the lighting pattern control unit 105 blinks the front diffuser type warning light 4 and the rear diffused type warning light 5 and causes the status indicator 6 to be displayed.

  Here, when the main control unit 102 detects that the ambulance 1 enters the intersection based on the driving state of the ambulance 1, the main control unit 102 generates a warning sound in the siren speaker 2 in the traveling direction of the ambulance 1. A warning sound is generated in a direction that intersects the traveling direction of the ambulance 1. The case where the ambulance 1 enters the intersection means that the red light intersection is detected, for example, 100 m ahead of the ambulance 1 from the driving state of the ambulance 1 acquired by the main control unit 102, or the ambulance 1 The intersection switch of the operation unit 20 is operated by a passenger.

  When the main control unit 102 detects that the ambulance 1 is about to avoid or overtake the vehicle ahead based on the driving state of the ambulance 1, the main control unit 102 moves the vehicle ahead to the siren speaker 2. A warning sound is generated. Here, the ambulance 1 trying to avoid the vehicle ahead is trying to avoid the vehicle in the opposite lane, and the ambulance 1 trying to pass the vehicle ahead is the same. It is trying to overtake the vehicle in the lane.

  Note that when the ambulance 1 is about to avoid or overtake the vehicle ahead, it is traveling ahead of the ambulance 1 from the driving state of the ambulance 1 acquired by the main control unit 102 (stopped). It is conceivable that the presence of another vehicle is detected and the turn switch of the ambulance 1 is operated or the steering angle of the steering wheel is changed. In addition, when the occupant of the ambulance 1 selects a target vehicle from a display (not shown) provided in the vehicle, the ambulance 1 may be trying to avoid or overtake the vehicle ahead. Good.

  In addition, when the main control unit 102 detects a vehicle traveling in the same lane as the ambulance 1 based on the driving state of the ambulance 1, the main control unit 102 generates spot light in the spotlight 3 toward the preceding vehicle. Let In addition, when the passenger | crew of the ambulance 1 selects the object vehicle from the display (not shown) provided in the inside of a vehicle, it is good also as a case where the vehicle which is driving ahead in the same lane as the ambulance 1 is detected.

  Further, the main control unit 102 causes the front diffused warning light 4 and the rear diffused warning light 5 to blink in a blinking pattern corresponding to the vehicle status of the ambulance 1 based on the driving state of the ambulance 1. Here, the vehicle status of the ambulance 1 is, for example, the situation where the ambulance 1 is stopped and performing a rescue operation from the driving state of the ambulance 1 acquired by the main control unit 102, or the transport destination is selected, the ambulance A situation where 1 starts and tries to join the driving lane, a situation where the ambulance 1 is traveling normally, a situation where the ambulance 1 tries to enter the intersection, and the like.

  Further, when the main control unit 102 detects that the vehicle status of the ambulance 1 changes based on the driving state of the ambulance 1, the main control unit 102 causes the front diffuser 4 and rear diffuser 5 to It produces more intense luminescence. In addition, the case where the vehicle situation of the ambulance 1 changes means that the turn switch or the hazard switch of the ambulance 1 is operated from the driving state of the ambulance 1 acquired by the main control unit 102 or the unit time of the ambulance 1 It is conceivable that the vehicle speed changes abruptly, the brake is operated, the steering angle of the steering wheel changes, or the like.

  In addition, the main control unit 102 displays the vehicle status of the ambulance 1 on the status indicator 6 based on the driving state of the ambulance 1. Under the control of the main control unit 102, the recognition of the ambulance 1 can be improved.

  Next, referring to FIG. 4 and FIG. 5, when the ambulance 1 enters the intersection, and when the ambulance 1 is trying to avoid or overtake the vehicle ahead, the main control unit 102 is silent. Control performed on the speaker 2 will be described. FIG. 4 is an explanatory view showing the control of the main control unit in the emergency vehicle notification device according to the embodiment of the present invention in comparison with the conventional case when an ambulance enters the intersection. Further, FIG. 5 shows a control of the main control unit when the ambulance tries to avoid or overtake the vehicle ahead in the alarm device for an emergency vehicle according to the embodiment of the present invention. It is explanatory drawing shown.

  In FIG. 4, when the ambulance 1 enters the intersection, a strong sound field is conventionally formed in front of the ambulance 1. Therefore, the ambulance 1 enters the intersection from a direction intersecting (for example, orthogonal to) the traveling direction of the ambulance 1. It is difficult for other vehicles to recognize the warning sound of the ambulance 1 (left side in FIG. 4). On the other hand, the main control unit 102 of the present invention causes the siren speaker 2 to generate a warning sound with respect to the traveling direction of the ambulance 1 and to generate a warning sound with respect to the direction intersecting the traveling direction of the ambulance 1. (Right side of FIG. 4). This makes it easier for other vehicles entering the intersection from a direction intersecting the traveling direction of the ambulance 1 to stop.

  At this time, with respect to the direction intersecting the traveling direction of the ambulance 1, the sound volume is not gradually increased as approaching the intersection, but suddenly a warning sound is generated to intersect the traveling direction of the ambulance 1. The recognizability of the ambulance 1 can be improved with respect to other vehicles that enter the intersection from the direction in which the vehicle is driven.

  In FIG. 5, when the ambulance 1 is trying to avoid or overtake the vehicle ahead, the ambulance 1 is not aware of the approach of the ambulance 1 and tries to overtake the vehicle stopped in front of the own vehicle. If there is another vehicle, there is a risk of obstructing the travel of the ambulance 1 (left side in FIG. 5). In contrast, the main control unit 102 of the present invention causes the siren speaker 2 to suddenly generate a warning sound toward the vehicle ahead (right side in FIG. 5). Thereby, the approach of the ambulance 1 can be notified to other vehicles traveling in front of the ambulance 1, and the vehicle can be stopped.

  At this time, it is preferable to generate a warning sound only for a running vehicle that is trying to pass a vehicle that is stopped ahead of the host vehicle. Therefore, by generating a warning sound only from a speaker directed to the traveling vehicle among the plurality of speakers provided in the siren speaker 2, it is possible to generate a warning sound only for the traveling vehicle. . In addition, by using an array speaker combined with a speaker or an ultrasonic speaker as the siren speaker 2 and forming a sound field in the direction of the traveling vehicle, a warning sound can be generated only for the traveling vehicle. it can. In addition, when there is a large vehicle in the opposite lane, the main control unit 102 may have another vehicle traveling behind the large vehicle, so that a warning sound is emitted toward the large vehicle. May be generated.

  Next, the control of the main control unit 102 when the ambulance 1 enters the intersection and when the ambulance 1 is trying to avoid or overtake the vehicle ahead will be described with reference to the flowchart of FIG. To do. FIG. 6 is a flowchart showing the control performed by the main control unit in the emergency vehicle alarm device according to the embodiment of the present invention on the siren speaker.

  In FIG. 6, the main control unit 102 acquires the driving state of the ambulance 1 from the vehicle signal acquisition unit 10, the operation unit 20, the vehicle exterior illuminance detection unit 30, and the traffic state recognition unit 101 (step S <b> 1). Subsequently, the main control unit 102 determines whether or not the ambulance 1 enters the intersection (step S2).

  If it is determined in step S2 that the ambulance 1 enters the intersection (that is, Yes), the main control unit 102 generates a warning sound for the traveling direction (forward) of the ambulance 1 on the siren speaker 2. At the same time, a warning sound is generated in the direction (side) crossing the traveling direction of the ambulance 1 (step S3), and the process of FIG.

  On the other hand, if it is determined in step S2 that the ambulance 1 does not enter the intersection (ie, No), the main control unit 102 determines whether the ambulance 1 is about to avoid or overtake the vehicle ahead. (Step S4).

  If it is determined in step S4 that the ambulance 1 is trying to avoid or overtake the preceding vehicle (ie, Yes), the main control unit 102 alerts the siren speaker 2 to the preceding vehicle. Is generated (step S5), and the process of FIG. 6 is terminated.

  On the other hand, if it is determined in step S4 that the ambulance 1 is not trying to avoid or overtake the preceding vehicle (ie, No), the process of FIG.

  Next, referring to FIG. 7 and FIG. 8, when the ambulance 1 is going to overtake the vehicle ahead, when the vehicle status of the ambulance 1 changes, and when the vehicle status of the ambulance 1 is changed to the surrounding vehicles and pedestrians The control performed by the main control unit 102 for the spotlight 3, the front diffused warning light 4, the rear diffused warning light 5, and the status indicator 6 in the case of reporting to the above will be described. FIG. 7 is an explanatory diagram showing the control of the main control unit when the ambulance is going to pass the vehicle ahead in the emergency vehicle notification device according to the embodiment of the present invention. Further, FIG. 8 shows an emergency vehicle notification device according to an embodiment of the present invention, in which the main control unit in the case where the vehicle status of the ambulance changes and the vehicle status of the ambulance is notified to surrounding vehicles and pedestrians. It is explanatory drawing which shows control.

  In FIG. 7, when the ambulance 1 tries to pass the vehicle ahead, music is played in the vehicle ahead, and the approach of the ambulance 1 may not be noticed. Therefore, the main control unit 102 causes the spotlight 3 to generate spot light toward the vehicle ahead. At this time, the main control unit 102 can notify the approach of the ambulance 1 by generating spot light on the rear glass or mirror of the vehicle ahead and directing the driver's attention to the peripheral vision. In addition, the recognizability of the ambulance 1 can be further improved by combining with the warning sound from the siren speaker 2 described above.

  Further, in FIG. 8, when the vehicle status of the ambulance 1 changes and when the vehicle status of the ambulance 1 is notified to surrounding vehicles and pedestrians, the main control unit 102 includes the front diffused warning light 4 and the rear diffused light. The operation of the type warning light 5 and the status indicator 6 is controlled.

  Specifically, when the ambulance 1 is in a situation where the ambulance 1 is stopped and performing a rescue operation or a transport destination is selected, the main control unit 102 determines that the front diffused warning light 4 and the rear diffused warning light 5 are blinked slowly to express that the ambulance 1 does not start. At this time, the main control unit 102 causes the status display 6 to display, for example, characters “stopped”. Note that characters such as “selecting transport destination” may be displayed by operating the display character selection switch by the passenger of the ambulance 1.

  Next, when the vehicle situation of the ambulance 1 changes and the ambulance 1 starts and tries to join the traveling lane, the main control unit 102 changes the front diffused warning light 4 and the rear diffused warning light 5 to It emits more intense light than usual and alerts the surroundings. At this time, the main control unit 102 causes the state indicator 6 to emit light, for example, sequentially in the direction in which the ambulance 1 bends, and transmits the traveling direction to the surroundings. It should be noted that stronger light emission can be generated by increasing the LED elements of the front diffuser type warning lamp 4 and the rear diffused type warning lamp 5 as compared with the prior art or increasing the brightness of the LED element itself.

  Subsequently, when the vehicle situation of the ambulance 1 is a situation in which the ambulance 1 is normally running, the main control unit 102 normally blinks the front diffused warning light 4 and the rear diffused warning light 5. At this time, the main control unit 102 causes the status indicator 6 to blink, for example.

  Next, when the vehicle situation of the ambulance 1 changes and the ambulance 1 is about to enter the intersection, the main control unit 102 causes the front diffused warning light 4 and the rear diffused warning light 5 to be more than normal. Causes strong light emission and alerts the surroundings. At this time, when the ambulance 1 travels straight, the main control unit 102 causes the status indicator 6 to blink in the same manner as during normal driving. When the ambulance 1 turns, the main display 102 turns the status indicator 6 in the direction in which the ambulance 1 turns. For example, the light is emitted sequentially, and the traveling direction is transmitted to the surroundings.

  In addition, the recognizability of the ambulance 1 can be further improved by combining with the warning sound from the siren speaker 2 described above. Further, when a large vehicle is traveling on the opposite lane, the vehicle traveling behind the large vehicle can visually recognize the front diffused warning light 4 and the rear diffused warning light 5 of the ambulance 1. Although it is not possible to hear the warning sound from the siren speaker 2, the approach of the ambulance 1 can be grasped.

  Subsequently, referring to the flowchart of FIG. 9, when the ambulance 1 is going to overtake the vehicle ahead, when the vehicle situation of the ambulance 1 changes, and the situation of the ambulance 1 to the surrounding vehicles and pedestrians The control of the main control unit 102 when notifying will be described. FIG. 9 shows the control performed by the main control unit in the emergency vehicle alarm device according to the embodiment of the present invention for the spotlight, the front diffused warning light, the rear diffused warning light, and the status indicator. It is a flowchart.

  In FIG. 9, the main control unit 102 acquires the driving state of the ambulance 1 from the vehicle signal acquisition unit 10, the operation unit 20, the outside illuminance detection unit 30, and the traffic state recognition unit 101 (step S <b> 11). Subsequently, the main control unit 102 determines whether or not the ambulance 1 is going to pass the vehicle ahead (step S12).

  In step S12, when it is determined that the ambulance 1 is going to pass the vehicle ahead (ie, Yes), the main control unit 102 generates spot light toward the vehicle ahead in the spotlight 3. (Step S13), and the process of FIG. 9 ends.

  On the other hand, if it is determined in step S12 that the ambulance 1 is not about to overtake the vehicle ahead (ie, No), the main control unit 102 determines whether the vehicle status of the ambulance 1 changes. (Step S14).

  In step S14, when it is determined that the vehicle situation of the ambulance 1 changes (that is, Yes), the main control unit 102 turns the front diffuser warning light 4 and the rear diffuser warning light 5 to the normal time. More intense light emission is generated (step S15), and the status indicator 6 is caused to emit light sequentially, for example (step S16), and the process of FIG. 9 is terminated.

  On the other hand, if it is determined in step S14 that the vehicle status of the ambulance 1 does not change (that is, No), the main control unit 102 notifies the surrounding vehicles and pedestrians of the vehicle status of the ambulance 1. Depending on the vehicle situation of the ambulance 1, the front diffused warning light 4 and the rear diffused warning light 5 are caused to emit light slowly or normally (step S17), and characters are displayed on the status indicator 6, or the status indicator 6 is displayed. For example, it blinks (step S18), and the process of FIG.

  As described above, according to the embodiment of the present invention, a warning sound is generated in the direction crossing the traveling direction of the emergency vehicle and the warning sound is generated in the direction intersecting the traveling direction of the emergency vehicle. By providing a warning display unit that notifies at least one of the emergency vehicle approach and the vehicle status of the emergency vehicle to vehicles around the emergency vehicle and pedestrians, the awareness of the emergency vehicle can be improved. As a result, there is a higher probability that another vehicle will give way to the emergency vehicle, so that the arrival time of the emergency vehicle and the transport time from the site can be shortened.

DESCRIPTION OF SYMBOLS 1 ... Ambulance 2 ... Siren speaker 3 ... Spotlight 4 ... Front diffused warning light 5 ... Rear diffused warning light 6 ... Status indicator 10 ... Vehicle signal acquisition part 20 ... Operation part 30 ... Outside illumination intensity detection part 40 ... Image recognition camera 50 ... Radar 60 ... ITS signal receiver 70 ... Position information acquisition unit 71 ... Map information 72 ... GPS signal receiver 73 ... WiFi receiver 100 ... Control unit 101 ... Traffic state recognition unit 102 ... Main control unit 103 ... Sound field control unit 104 ... light source direction control unit 105 ... lighting pattern control unit

Claims (10)

A warning display unit for notifying the vicinity of the emergency vehicle of at least one of the approach of the emergency vehicle and the vehicle status of the emergency vehicle ;
An outside illuminance detector that detects the illuminance around the emergency vehicle , and
The warning display unit has a diffused warning light provided as an upper part of the emergency vehicle as a first warning display unit,
Further comprising a control unit for controlling the operation of the diffuse warning light,
The control unit detects, when the emergency vehicle turn switch is operated based on the driving state of the emergency vehicle, or when the steering angle of the emergency vehicle is changed, detected by the outside illuminance detection unit An emergency vehicle notification device that causes the diffused warning light to emit light stronger than usual based on the illuminance around the emergency vehicle. The warning display section, notification device of the emergency vehicle according to claim 1 having a spot light generation unit provided at the front of the emergency vehicle as a second warning display unit. A controller for controlling the operation of the spot light generator;
Wherein, based on the operation state of the emergency vehicle, when detecting a vehicle traveling ahead in the emergency vehicle in the same lane, the spot light generator, the vehicle traveling in the front The emergency vehicle notification device according to claim 2 , wherein spotlight is generated toward the vehicle. Prior Symbol controller, based on the operation state of the emergency vehicle, any one of claims 1 to blink the diffuser formula警光lamp blinking pattern corresponding to the vehicle condition of the emergency vehicle to claim 3 The emergency vehicle notification device according to claim 1. Wherein the control unit, the vehicle status of the emergency vehicle, when the emergency vehicle is in a situation where parked, wherein the diffuser formula警光lamp in claim 4 to produce a normal light emission was slower than when Emergency vehicle notification device. The warning display section, notification device of the emergency vehicle according to any one of claims 1 having a display device provided in the rear of the emergency vehicle to claim 5 as a third warning unit. A control unit for controlling the operation of the display;
The emergency vehicle notification device according to claim 6 , wherein the control unit displays a vehicle status of the emergency vehicle on the display based on a driving state of the emergency vehicle. Thereby generating a warning tone to the traveling direction of the emergency vehicle, to claims 1 to 7, further comprising a warning sound generator for generating a warning tone to the direction intersecting the traveling direction of the emergency vehicle The emergency vehicle notification device according to any one of the above. A control unit for controlling the operation of the warning sound generating unit;
When the control unit detects that the emergency vehicle enters an intersection based on the driving state of the emergency vehicle, the control unit warns the warning sound generation unit with respect to a direction intersecting the traveling direction of the emergency vehicle. The emergency vehicle notification device according to claim 8 , wherein sound is generated. A control unit for controlling the operation of the warning sound generating unit;
When the control unit detects that the emergency vehicle is trying to avoid or overtake the vehicle ahead based on the driving state of the emergency vehicle, the control unit causes the warning sound generation unit to The emergency vehicle notification device according to claim 8 or 9 , wherein a warning sound is generated toward the vehicle.

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