Alarm device

Abstract

To provide an alarm device capable of recognizing a degree at which approaching an alarm object should be avoided.SOLUTION: An alarm device 1 attached to an occupant of a moving body, comprises: a plurality of oscillators 2 attached to the occupant so as to be able to transmit vibrations; a communication part 5 for receiving alarm target information 11 including a direction 12 of an alarm target 10, and a degree 13 at which approaching the alarm target 10 of the moving body should be avoided; and a control part 6 for performing control of vibrating at least one of the plurality of oscillators 2 so as to be able to discriminate the direction 12 of the alarm target 10 from the degree 13 at which approaching the alarm target 10 of the moving body should be avoided, based on the alarm target information 11 received by the communication part 5.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an alarm device. [Background technology]

[0002] 2. Description of the Related Art Conventionally, an alarm device having a plurality of vibrators is known (for example, Patent Document 1).

[0003] The above-mentioned Patent Document 1 discloses a head mounted display (HMD) to be worn on the head of a user. The HMD (alarm device) has a shape of glasses. The HMD is provided with three vibrators. The three vibrators are provided on the front side, the right side, and the left side as seen from the user. The HMD is also equipped with a plurality of cameras that capture images in a plurality of directions. The above-mentioned Patent Document 1 discloses that when a car, a bicycle, or the like that may collide with a user wearing the HMD (alarm target) is detected by the camera, the controller (controller) of the HMD vibrates the vibrator to notify the user of the direction in which the car, the bicycle, or the like is approaching. Specifically, when a car, a bicycle, or the like that may collide with is approaching from the right direction, the controller vibrates the right vibrator. When a car, a bicycle, or the like that may collide with is approaching from the left direction, the controller vibrates the left vibrator. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-82363 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the HMD (alarm device) disclosed in the above Patent Document 1, the user cannot judge the degree to which a car, bicycle, etc. detected by the camera is approaching the user and the approach to the car, bicycle, etc. (the object of the alarm) should be avoided based on the vibration of the vibrator (vibrator) provided in the HMD. Therefore, it is desired to be able to recognize the degree to which the approach to the object of the alarm should be avoided.

[0006] The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to provide an alarm device that makes it possible to recognize the degree to which approach to the object of the alarm should be avoided. [Means for solving the problem]

[0007] In one aspect of the present invention, an alarm device is attached to an occupant of a moving body, and comprises a plurality of vibrators attached so as to be able to transmit vibrations to the occupant, a communication unit that receives alarm target information including the direction of the alarm target and the degree to which the moving body should be avoided from approaching the alarm target, and a control unit that controls vibration of at least one of the plurality of vibrators so as to identify the direction of the alarm target and the degree to which the moving body should be avoided from approaching the alarm target based on the alarm target information received by the communication unit. Effect of the Invention

[0008] The warning device in the above aspect includes a control unit that controls vibration of at least one of the multiple vibrators so as to distinguish the direction of the warning target and the degree to which the moving body should avoid approaching the warning target based on the warning target information received by the communication unit as described above. Here, for example, the closer to the warning target, the higher the degree to which the moving body should avoid approaching the warning target. Also, for example, the more severe the warning target is, the higher the degree to which the moving body should avoid approaching the warning target. Since the control unit vibrates the vibrator so as to distinguish the direction of the warning target and the degree to which the moving body should avoid approaching the warning target, the occupant to whom the warning device is attached can identify the degree to which the approach to the warning target in the direction of the vibrating vibrator should be avoided by transmitting the vibration of the vibrator. Therefore, the degree to which the approach to the warning target should be avoided can be recognized. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a block diagram illustrating an example of an alarm device according to an embodiment. [Diagram 2] FIG. 1 is a schematic diagram of a head-mounted alarm device. [Diagram 3] FIG. 2 is a schematic diagram for explaining warning target information. [Figure 4] FIG. 1 is a schematic diagram of an aircraft and a first example of a pilot's field of view with installed warning devices. [Diagram 5] 11 is a graph illustrating an example of a vibration pattern when the degree to which approach to the alarm target should be avoided is low. [Figure 6] 11 is a graph for explaining an example of a vibration pattern when there is a high degree of need to avoid approaching the object of warning; [Figure 7] 11 is a graph for explaining an example of a relationship between the length of a vibration pattern and the degree to which approach to a warning target should be avoided. [Figure 8] FIG. 13 is a schematic diagram of a second example of an aircraft and a pilot's field of view with installed warning devices. [Figure 9] FIG. 13 is a schematic diagram of a third example of an aircraft and a pilot's field of view with installed warning devices. [Figure 10] FIG. 4 is a schematic diagram of a fourth example of an aircraft and a pilot's field of view with installed warning devices. [Figure 11] 5 is a flowchart for explaining vibration processing of a plurality of transducers based on warning subject information according to the first embodiment. [Figure 12] 10 is a flowchart for explaining vibration processing of a plurality of transducers based on alarm subject information according to the second embodiment. [Figure 13] 13 is a schematic diagram showing an example of a belt-shaped attachment part according to a modified example. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.

[0011] [First embodiment] An alarm device 1 according to a first embodiment will be described with reference to Figs. 1 to 10. In the first embodiment, an example will be described in which the alarm device 1 is attached to a pilot 90 of an aircraft 100, among moving bodies that move with people on board, such as automobiles, aircraft, and ships. The aircraft 100 is an example of a "moving body" in the claims, and the pilot 90 is an example of a "crew member" in the claims.

[0012] (Overview of the alarm device) The warning device 1 is attached to a pilot 90 of an aircraft 100 including fixed wings or rotors. As an example, the warning device 1 is attached to a pilot 90 of an aircraft 100 including rotors (see FIG. 4). The aircraft 100 including rotors is, for example, a helicopter, and is used for rescue operations and the like. In rescue operations using the aircraft 100, it is important to make the pilot 90 aware of structures, natural shapes, disasters, and the like that may be obstacles to flight.

[0013] When an alarm is issued for the above-mentioned alarm target 10 as an obstacle to flight through the eyesight via a display or the like, a time lag may occur between looking at the display and consciously looking at the display again. In addition, when an alarm is issued for the above-mentioned alarm target 10 as an obstacle to flight through the ears via headphones or the like, it is difficult to simultaneously convey information such as the direction 12 of the alarm target 10 by the alarm sound. Therefore, the alarm device 1 issues an alarm for the above-mentioned alarm target 10 as an obstacle to flight through the sense of touch, rather than through the eyesight or ears. As will be described in detail later, the alarm device 1 issues an alarm by transmitting vibrations to the pilot 90 so that the pilot 90 can distinguish between the direction 12 of the alarm target 10 and the degree 13 at which the aircraft 100 should avoid approaching the alarm target 10. The "degree 13 at which the aircraft 100 should avoid approaching the alarm target 10" is an example of the "degree at which a moving object should avoid approaching the alarm target" in the claims.

[0014] (Overall configuration of the alarm device) The overall configuration of an alarm device 1 according to a first embodiment will be described with reference to FIGS.

[0015] 1, the alarm device 1 includes a vibrator 2, an input receiving unit 3, a belt-shaped attachment unit 4, an alarm device communication unit 5, a control unit 6, and a storage unit 7. The alarm device communication unit 5 is an example of a "communication unit" in the claims.

[0016] The transducer 2 is configured to issue a warning of the warning target 10 to the pilot 90 by vibrating. The transducer 2 is attached so as to be capable of transmitting vibration to the pilot 90. A plurality of transducers 2 are provided. Specifically, the transducer 2 includes a plurality of transducers 2a to 2h (see FIG. 2(b)). The transducer 2 is, for example, a vibration motor. Note that the transducer 2 is not limited to a vibration motor, and may be, for example, an ultrasonic transducer or the like.

[0017] Furthermore, the vibration frequency of the multiple transducers 2 is set to a vibration frequency different from the natural frequency of the aircraft 100. The vibration frequency of the multiple transducers 2 is configured so that a desired vibration frequency of the pilot 90 can be received by the input receiving unit 3 of the warning device 1. The pilot 90 sets a desired vibration frequency different from the natural frequency of the aircraft 100 as the vibration frequency of the multiple transducers 2 by the input receiving unit 3.

[0018] As shown in FIG. 2(a) and FIG. 2(b), the transducer 2 is provided on a belt-like mounting part 4 that is attached to the head of the pilot 90 so as to surround the head. As shown in FIG. 2(b), a plurality of transducers 2 are provided so as to be able to identify the direction 12 of the alarm target 10. The plurality of transducers 2a-2h are positioned in a plurality of directions different from each other with respect to a predetermined position 17 inside an area 16 surrounded by the plurality of transducers 2a-2h. As an example, eight transducers 2 are provided. The plurality of transducers 2a-2h are provided on the belt-like mounting part 4 at positions corresponding to the eight directions of the head of the pilot 90, namely, the forward direction, the right diagonal forward direction, the right direction, the right diagonal rearward direction, the rearward direction, the left diagonal rearward direction, the left direction, and the left diagonal forward direction. It is sufficient to obtain the directional resolution of the above eight directions as the direction 12 of the alarm target 10. Alternatively, four transducers 2 may be provided, and each of the multiple transducers 2 may be provided on the belt-like mounting part 4 at a position corresponding to at least four directions, i.e., forward / backward, left / right, and right / left directions, of the head of the pilot 90. Alternatively, 16 transducers 2 may be provided, and each of the multiple transducers 2 may be provided on the belt-like mounting part 4 at a position corresponding to the 16 directions.

[0019] The belt-like mounting part 4 is configured to hold the plurality of transducers 2 at positions corresponding to a plurality of different directions. Specifically, the belt-like mounting part 4 includes a holding part 8 (see FIG. 1) that holds the plurality of transducers 2 at positions corresponding to a plurality of different directions on the belt-like mounting part 4. The holding part 8 of the belt-like mounting part 4 holds the plurality of transducers 2 at positions corresponding to eight directions of the head of the pilot 90, including the forward direction, the right diagonal forward direction, the right direction, the right diagonal rearward direction, the rearward direction, the left diagonal rearward direction, the left direction, and the left diagonal forward direction. The belt-like mounting part 4 also includes a first housing 9. The first housing 9 is provided with an input receiving part 3, an alarm device side communication part 5, a control part 6, and a storage part 7. The belt-like mounting part 4 is, for example, a band (see FIG. 2(a)).

[0020] As shown in Fig. 1, the warning device communication unit 5 is configured to communicate with an aircraft communication unit 104 of the aircraft 100, which will be described later. The warning device communication unit 5 receives warning target information 11 (see Fig. 3) from the aircraft communication unit 104. The warning target information 11 includes a direction 12 of the warning target 10 and a degree 13 to which the aircraft 100 should avoid approaching the warning target 10. Details of the warning target information 11 will be described later.

[0021] The alarm device communication unit 5 is configured to perform wireless communication with the aircraft communication unit 104. For example, Bluetooth (registered trademark) communication or Wi-Fi communication may be used as the wireless communication. The wireless communication method between the alarm device communication unit 5 and the aircraft communication unit 104 is not particularly limited. The alarm device communication unit 5 may be configured to perform wired communication with the aircraft communication unit 104.

[0022] In the first embodiment, the warning device communication unit 5 receives the warning target information 11 from the aircraft communication unit 104 for each control cycle. The control unit 6 acquires the warning target information 11 received by the warning device communication unit 5 for each control cycle. The warning device communication unit 5 may be configured to receive the warning target information 11 from the aircraft communication unit 104 based on the timing of acquisition of the warning target information 11 by the detection unit 101 of the aircraft 100 described below and the timing of generation of the warning target information 11 by the image processing unit 103. The timing of reception of the warning target information 11 from the aircraft communication unit 104 by the warning device communication unit 5 is not particularly limited.

[0023] The control unit 6 is configured to control the transducer 2. The control unit 6 includes a processor (arithmetic processing device) such as a CPU (Central Processing Unit) or a microcomputer. The control unit 6 is configured in software as functional blocks realized by the processor executing various programs.

[0024] The control unit 6 controls at least one of the multiple vibrators 2 to vibrate so as to distinguish the direction 12 of the alarm target 10 and the degree 13 to which approach to the alarm target 10 should be avoided, based on the alarm target information 11 received by the alarm device side communication unit 5. More specifically, the control unit 6 vibrates at least one of the multiple vibrators 2 corresponding to the direction 12 of the alarm target 10, based on the alarm target information 11, by changing the vibration in accordance with the degree 13 to which approach to the alarm target 10 should be avoided, so as to distinguish the degree 13 to which approach to the alarm target 10 should be avoided.

[0025] The storage unit 7 includes a non-volatile storage device. The storage unit 7 stores a table 14 that associates a degree 13 of avoiding approach to the alarm target 10 with a vibration pattern 20 (see FIG. 5) of the vibrator 2. The control unit 6 refers to the stored table 14 based on the alarm target information 11 received by the alarm device side communication unit 5, and vibrates the vibrator 2 corresponding to the direction 12 of the alarm target 10 among the multiple vibrators 2, using the vibration pattern 20 based on the reference result. Details of the vibration pattern 20 will be described later.

[0026] The alarm device 1 does not include a rechargeable battery, and is configured to be powered by wired power supply from the aircraft 100. However, the alarm device 1 may be configured to be powered by a built-in rechargeable battery.

[0027] (Aircraft configuration related to obtaining warning target information) As shown in FIG. 1, an aircraft 100 includes a detection unit 101, an image capture unit 102, an image processing unit 103, and an aircraft side communication unit 104.

[0028] The detection unit 101 is configured to acquire warning target information 11. The detection unit 101 includes, for example, a radar (Radio Detecting and Ranging: RADAR) and a lidar (Light Detection and Ranging: LiDAR). The photographing unit 102 is configured to acquire images of the surroundings of the aircraft 100, such as the front, sides, and rear of the aircraft 100. The photographing unit 102 includes, for example, a plurality of cameras. The image processing unit 103 is configured to extract a warning target 10 based on the image acquired by the photographing unit 102, and generate warning target information 11 based on the extracted warning target 10. The image processing unit 103 includes, for example, a processor (arithmetic processing device) such as a GPU (Graphics Processing Unit). The aircraft side communication unit 104 is configured to communicate with the warning device side communication unit 5. The aircraft side communication unit 104 transmits the warning target information 11 to the warning device side communication unit 5.

[0029] (Warning target information) 3, the warning target information 11 is information related to a warning target 10. The warning target 10 includes structures, natural shapes, disasters, etc. The warning target information 11 includes a direction 12 of the warning target 10 and a degree 13 to which the aircraft 100 should avoid approaching the warning target 10. When there are multiple warning targets 10, the warning target information 11 includes multiple directions 12 of the warning targets 10 and degrees 13 to which the aircraft 100 should avoid approaching the warning targets 10 for the multiple warning targets 10.

[0030] The direction 12 of the warning target 10 is the direction 12 of the warning target 10 relative to the aircraft 100 (see FIG. 4).

[0031] The degree 13 to which the aircraft 100 should avoid approaching the warning target 10 includes the distance to the warning target 10 and the degree of the situation of the warning target 10. The distance to the warning target 10 is the distance from the aircraft 100 (see FIG. 4) to the warning target 10. The degree of the situation of the warning target 10 is a broad concept that includes the degree of burning of the fire and the size of the eruption when the warning target 10 is a disaster such as a fire or eruption. In other words, the degree of the situation of the warning target 10 is, for example, the degree of the disaster.

[0032] A high degree 13 of avoiding approach to the warning target 10 means at least one of the following: the distance from the aircraft 100 to the warning target 10 is short, or a severe disaster has occurred at the warning target 10. A low degree 13 of avoiding approach to the warning target 10 means at least one of the following: the distance from the aircraft 100 to the warning target 10 is long, or a minor disaster has occurred at the warning target 10.

[0033] (Relationship between the direction of the alarm target and the vibrating transducer) With reference to FIG. 4, the relationship between the direction 12 of the warning target 10 included in the warning target information 11 (see FIG. 3) and the vibrating transducer 2 will be described. In FIG. 4, the face of the pilot 90 is facing forward (the direction of travel of the aircraft 100). A steel tower as the warning target 10 is located in the center of the field of view 15 of the pilot 90. At this time, the control unit 6 (see FIG. 1) vibrates the transducer 2 corresponding to the direction 12 of the warning target 10 so as to be able to distinguish between the direction 12 of the warning target 10 and the degree 13 of needing to avoid approaching the warning target 10, based on the warning target information 11. That is, the control unit 6 vibrates the transducer 2a (see FIG. 2(b)) provided in front of the head of the pilot 90 so as to be able to distinguish between the direction of the steel tower and the distance to the tower.

[0034] The aircraft 100 is provided with a magnetic three-dimensional tracker (not shown) that detects the head movement of the pilot 90, including the direction of the pilot's face. A receiving antenna (not shown) of the three-dimensional tracker is attached to the helmet worn by the pilot 90, and the head movement of the pilot 90 is detected based on a magnetic field detection signal output from the receiving antenna. The warning device communication unit 5 (see FIG. 1) receives head information related to the head movement of the pilot 90 from the aircraft communication unit 104 (see FIG. 1). The control unit 6 (see FIG. 1) vibrates the transducer 2 corresponding to the direction 12 of the warning target 10 based on the warning target information 11 (see FIG. 3) and the head information. That is, in the above example where the pilot 90 faces forward and a steel tower is located in the direction of travel of the aircraft 100, the control unit 6 vibrates the transducer 2a (see FIG. 2(b)) provided in front of the pilot 90's head.

[0035] Here, for example, when the face of the pilot 90 faces diagonally forward to the right with respect to the direction of travel of the aircraft 100, a steel tower as an alarm target 10 is located diagonally forward to the left of the field of view 15 of the pilot 90. In this case, the control unit 6 (see FIG. 1) stops the vibration of the transducer 2a (see FIG. 2(b)) provided in front of the head of the pilot 90 based on the alarm target information 11 (see FIG. 3) and the head information, and vibrates the transducer 2h (see FIG. 2(b)) provided in the diagonally forward left of the head of the pilot 90. The control unit 6 is configured to perform control to change the transducer 2 to be vibrated according to the movement of the head of the pilot 90 (the direction of the face of the pilot 90) based on the alarm target information 11 and the head information, and thus can align the direction 12 of the alarm target 10 in the direction of the head of the pilot 90 with the position of the transducer 2 vibrating on the head of the pilot 90.

[0036] (Vibration pattern) The vibration pattern 20 will be described with reference to Fig. 5 to Fig. 7. The control unit 6 (see Fig. 1) is configured to vibrate the vibrator 2 corresponding to the direction 12 of the alarm target 10 according to the vibration pattern 20 acquired by referring to a table 14 stored in the storage unit 7 (see Fig. 1) based on the alarm target information 11 (see Fig. 3) received by the alarm device side communication unit 5 (see Fig. 1). The vibration pattern 20 includes a vibration period 21 during which vibration is performed at a set vibration frequency, and a vibration stop period 22 during which vibration is stopped.

[0037] Fig. 5 is an example of vibration pattern 23 when the degree 13 of avoiding approach to the alarm target 10 is low. That is, Fig. 5 is an example of vibration pattern 23 when the distance to the alarm target 10 is long or the degree of the situation of the alarm target 10 is mild. Fig. 6 is an example of vibration pattern 26 when the degree 13 of avoiding approach to the alarm target 10 is high. That is, Fig. 6 is an example of vibration pattern 26 when the distance to the alarm target 10 is short or the degree of the situation of the alarm target 10 is severe.

[0038] As shown in Fig. 5, the vibration pattern 23 includes a vibration period 24 and a vibration stop period 25. As shown in Fig. 6, the vibration pattern 26 includes a vibration period 27 and a vibration stop period 28. The length of the vibration period 24 in the vibration pattern 23 when the degree 13 of avoiding approach to the alarm target 10 shown in Fig. 5 is low is equal to the length of the vibration period 27 in the vibration pattern 26 when the degree 13 of avoiding approach to the alarm target 10 shown in Fig. 6 is high. That is, as an example, the vibration period 21 is configured to be constant regardless of the degree 13 of avoiding approach to the alarm target 10.

[0039] In contrast, the length of the vibration stop period 28 in the vibration pattern 26 when the degree 13 of avoiding approach to the alarm target 10 shown in Fig. 6 is high is shorter than the length of the vibration stop period 25 in the vibration pattern 23 when the degree 13 of avoiding approach to the alarm target 10 shown in Fig. 5 is low. That is, as an example, the vibration stop period 22 is configured to be shorter as the degree 13 of avoiding approach to the alarm target 10 is higher.

[0040] That is, as shown in Fig. 7, the length of one vibration pattern 20 is configured to change in response to the degree 13 of avoiding approach to the alarm target 10. Specifically, the length of one vibration pattern 20 consisting of one vibration period 21 and one vibration stop period 22 is configured to become shorter as the degree 13 of avoiding approach to the alarm target 10 becomes higher. That is, the vibration stop period 22 becomes shorter as the degree 13 of avoiding approach to the alarm target 10 becomes higher.

[0041] In addition, when the degree 13 of avoiding approach to the alarm target 10 is higher than the first threshold value 31, the vibration pattern 20 is constant. In this case, the pilot 90 to whom the alarm device 1 is attached is sufficiently aware of the degree 13 of avoiding approach to the alarm target 10 by the vibration of the vibrator 2, so there is no need to further shorten the length of one vibration pattern 20. In addition, even if the degree 13 of avoiding approach to the alarm target 10 is higher than the first threshold value 31, the length of one vibration pattern 20 may be configured to become shorter as the degree 13 of avoiding approach to the alarm target 10 becomes higher.

[0042] Moreover, when the degree 13 of avoiding approach to the warning target 10 is lower than the second threshold 32 and higher than the third threshold 33, the vibration pattern 20 is constant. In this case, if the length of one vibration pattern 20 is increased by lengthening the vibration stop period 22, the pilot 90 to whom the warning device 1 is attached will be less likely to notice the vibration of the vibrator 2. Note that even if the degree 13 of avoiding approach to the warning target 10 is lower than the second threshold 32 and higher than the third threshold 33, the length of one vibration pattern 20 may be configured to increase as the degree 13 of avoiding approach to the warning target 10 decreases.

[0043] Furthermore, when the degree 13 of avoiding approach to the alarm target 10 is lower than the third threshold 33, the control unit 6 determines that the alarm target 10 is outside the alarm range and is configured not to vibrate the vibrator 2. Note that even when the degree 13 of avoiding approach to the alarm target 10 is lower than the third threshold 33, the control unit 6 may be configured to vibrate the vibrator 2.

[0044] (Multiple transducers vibrate for multiple alarm targets)

[0045] When the warning object information 11 (see FIG. 3) acquired by the control unit 6 (see FIG. 1) includes the directions 12 of the warning objects 10 and the degree 13 of avoiding approach to the warning objects 10 for a predetermined number or less of warning objects 10, the control unit 6 is configured to sequentially vibrate each of the vibrators 2 corresponding to the directions 12 of the warning objects 10 based on the vibration pattern 20. In the first embodiment, the predetermined number is 3. That is, when the warning object information 11 includes the directions 12 of the warning objects 10 and the degree 13 of avoiding approach to the warning objects 10 for two or more and three or less warning objects 10, the control unit 6 sequentially vibrates each of the vibrators 2 corresponding to the directions 12 of the warning objects 10 for two or more and three or less based on the vibration pattern 20. Note that the predetermined number is not limited to 3, and the predetermined number may be 2, or the predetermined number may be 4 or more.

[0046] In FIG. 8, the pilot 90 faces forward (in the direction of flight of the aircraft 100). A steel tower is located in the center of the field of view 15 of the pilot 90 and diagonally forward to the left as an alarm target 10. The alarm target information 11 (see FIG. 3) acquired by the control unit 6 (see FIG. 1) includes directions 12 of the two alarm targets 10 and a degree 13 of avoidance of approach to the two alarm targets 10 for two alarm targets 10 not exceeding a predetermined number. The degree 13 of avoidance of approach to the alarm targets 10 is the distance to the alarm targets 10. In this case, the control unit 6 vibrates the transducers 2a and 2h (see FIG. 2(b)) corresponding to the directions 12 of the two alarm targets 10 sequentially based on the vibration pattern 20. Specifically, the vibration for a predetermined time based on the vibration pattern 20 of the transducer 2a corresponding to the forward direction and the vibration for a predetermined time based on the vibration pattern 20 of the transducer 2h corresponding to the diagonally forward left direction are alternately performed sequentially. The predetermined time is, for example, 5 seconds. The predetermined time is not limited to 5 seconds.

[0047] 9, fires as warning targets 10 are located in the center and diagonally forward to the left of the field of view 15 of the pilot 90. The warning target information 11 (see FIG. 3) acquired by the control unit 6 (see FIG. 1) includes directions 12 of the two warning targets 10 and a degree 13 to which approach to the two warning targets 10 should be avoided for a predetermined number or less of two warning targets 10. The degree 13 to which approach to the warning targets 10 should be avoided is the degree of the situation of the warning targets 10. In this case, the control unit 6 sequentially vibrates the transducers 2a and 2h (see FIG. 2(b)) corresponding to the directions 12 of the two warning targets 10 based on the vibration pattern 20.

[0048] The fire (large fire) located in the center of the field of view 15 of the pilot 90 as the warning target 10 is farther from the aircraft 100 than the fire (small fire) located diagonally forward and to the left of the field of view 15 of the pilot 90 as the warning target 10, but the extent of the fire's combustion is greater. Therefore, the fire located in the center of the field of view 15 of the pilot 90 has a higher degree 13 of needing to avoid approaching the warning target 10 than the fire located diagonally forward and to the left of the field of view 15 of the pilot 90.

[0049] Furthermore, when the warning target information 11 (see FIG. 3) acquired by the control unit 6 (see FIG. 1) includes directions 12 of multiple warning targets 10 and a degree 13 to avoid approaching the multiple warning targets 10 that exceeds a predetermined number, the control unit 6 is configured to vibrate each of the transducers 2 corresponding to the directions 12 of multiple warning targets 10 that exceeds a predetermined number in parallel based on the vibration pattern 20. In other words, when the warning target information 11 includes directions 12 of multiple warning targets 10 and a degree 13 to avoid approaching the warning targets 10 that exceeds a predetermined number, the control unit 6 vibrates each of the transducers 2 corresponding to the directions 12 of the four or more warning targets 10 in parallel based on the vibration pattern 20.

[0050] In FIG. 10, the face of the pilot 90 is facing forward (the direction of travel of the aircraft 100). Steel towers 80a to 80d as warning targets 10 are located at the center, the left end, the diagonally forward left, and the right end of the field of view 15 of the pilot 90, respectively. The warning target information 11 (see FIG. 3) acquired by the control unit 6 (see FIG. 1) includes directions 12 of the four warning targets 10 and degrees 13 to avoid approaching the four warning targets 10, relating to four warning targets 10 that exceed a predetermined number. In this case, the control unit 6 vibrates each of the transducers 2a, 2g, 2h, and 2c (see FIG. 2(b)) corresponding to the directions 12 of the four warning targets 10 in parallel based on the vibration pattern 20.

[0051] (Vibration processing of multiple transducers based on alarm target information) With reference to FIG. 11, a vibration process of the multiple transducers 2 based on the alarm object information 11 by the control unit 6 according to the first embodiment will be described.

[0052] In step S1, the control section 6 acquires the alarm target information 11 received by the alarm device side communication section 5. After that, the process proceeds to step S2.

[0053] In step S2, if the acquired warning target information 11 includes directions 12 of multiple warning targets 10 and a degree 13 to avoid approaching the multiple warning targets 10 for a predetermined number or less of warning targets 10 (Yes in step S2), processing proceeds to step S3, and if the acquired warning target information 11 includes directions 12 of multiple warning targets 10 and a degree 13 to avoid approaching the multiple warning targets 10 for a predetermined number or more of warning targets 10 (No in step S2), processing proceeds to step S4.

[0054] In step S3, the control unit 6 sequentially vibrates each of the transducers 2 corresponding to the directions 12 of a plurality of alarm targets 10, the number of which is equal to or less than a predetermined number, based on the vibration pattern 20.

[0055] In step S4, the control unit 6 causes the transducers 2 corresponding to the directions 12 of the plurality of alarm targets 10, which number exceeds a predetermined number, to vibrate in parallel based on the vibration pattern 20.

[0056] The operations of steps S1 to S4 are repeated every control period.

[0057] (Effects of the first embodiment) In the first embodiment, the following effects can be obtained.

[0058] In the first embodiment, as described above, the pilot 90 is provided with a plurality of transducers 2 attached so as to be able to transmit vibrations thereto, a warning device side communication unit 5 that receives warning target information 11 including a direction 12 of a warning target 10 and a degree 13 of the aircraft 100 that should avoid approaching the warning target 10, and a control unit 6 that performs control to vibrate at least one of the plurality of transducers 2 so as to be able to distinguish the direction 12 of the warning target 10 and the degree 13 of the aircraft 100 that should avoid approaching the warning target 10 based on the warning target information 11 received by the warning device side communication unit 5. Here, for example, the closer the aircraft 100 is to the warning target 10, the higher the degree 13 of the aircraft 100 that should avoid approaching the warning target 10. Also, for example, the more severe the warning target 10 is, the higher the degree 13 of the aircraft 100 that should avoid approaching the warning target 10. The control unit 6 vibrates the transducer 2 so as to be able to distinguish between the direction 12 of the warning target 10 and the degree 13 to which the aircraft 100 should avoid approaching the warning target 10, and therefore the pilot 90 fitted with the warning device 1 can, by receiving the vibrations of the transducer 2, identify the degree 13 to which the pilot 90 should avoid approaching the warning target 10 in the direction of the vibrating transducer 2. Therefore, the pilot 90 can recognize the degree 13 to which the pilot 90 should avoid approaching the warning target 10.

[0059] In addition, in the above embodiment, the following additional effects can be obtained by configuring as follows.

[0060] That is, in the first embodiment, as described above, the multiple transducers 2 are positioned in multiple different directions relative to a predetermined position 17 inside an area 16 surrounded by the multiple transducers 2. This makes it possible to appropriately identify the direction 12 of the alarm target 10 based on the vibrations of each of the multiple transducers 2 positioned in multiple different directions.

[0061] Also, in the first embodiment, as described above, the control unit 6 is configured to vibrate at least one of the multiple transducers 2 corresponding to the direction 12 of the alarm target 10 so as to be able to identify the degree 13 to avoid approaching the alarm target 10 by changing the vibration corresponding to the degree 13 to avoid approaching the alarm target 10 based on the alarm target information 11 received by the alarm device side communication unit 5. As a result, the pilot 90 to whom the alarm device 1 is attached can identify the degree 13 to avoid approaching the alarm target 10 in the direction of the vibrating transducer 2 by receiving the vibration that changes corresponding to the degree 13 to avoid approaching the alarm target 10 from the transducer 2. Therefore, the degree 13 to avoid approaching the alarm target 10 can be reliably recognized.

[0062] Also, in the first embodiment, as described above, the control unit 6 is configured to vibrate at least one transducer 2 corresponding to the direction 12 of the alarm target 10 among the multiple transducers 2 so as to be able to identify the direction 12 of the alarm target 10 and the degree 13 of avoiding approach to the alarm target 10 based on the alarm target information 11 received by the alarm device side communication unit 5 through communication with the aircraft 100 including a fixed wing or a rotary wing. As a result, the pilot 90 of the aircraft 100 to which the alarm device 1 is attached can identify the direction 12 of the alarm target 10 that may be an obstacle to flight and the degree 13 of avoiding approach to the alarm target 10 by transmitting the vibration of the transducer 2. Therefore, the degree 13 of avoiding approach to the alarm target 10 that may be an obstacle to flight can be reliably recognized by the vibration of the transducer 2.

[0063] In the first embodiment, as described above, the aircraft 100 further includes a belt-like mounting part 4 that is attached to the body of the pilot 90 so as to surround a predetermined part of the body, and the belt-like mounting part 4 includes a holder 8 that holds the plurality of transducers 2 at positions on the belt-like mounting part 4 that correspond to a plurality of different directions. As a result, the belt-like mounting part 4 is attached to the body of the pilot 90 so as to surround a predetermined part of the body of the pilot 90, and the plurality of transducers 2 are held at positions on the belt-like mounting part 4 that correspond to a plurality of different directions, so that the plurality of transducers 2 can be provided at positions on the predetermined part of the body of the pilot 90 that correspond to a plurality of different directions. Therefore, the vibration of the transducers 2 provided at positions corresponding to a plurality of directions allows the pilot 90 to accurately recognize the direction 12 of the alert target 10 and the degree 13 to which approach to the alert target 10 should be avoided.

[0064] In the first embodiment, as described above, the belt-like mounting part 4 is mounted on the head of the pilot 90 of the aircraft 100, and the holding part 8 of the belt-like mounting part 4 holds the plurality of transducers 2 at positions corresponding to at least the front, rear, left and right directions of the head. By mounting the belt-like mounting part 4 on the head of the pilot 90, the pilot 90 can intuitively identify the vibration of the transducers 2 compared to the case where the belt-like mounting part 4 is mounted on a part other than the head of the pilot 90. In addition, the holding part 8 of the belt-like mounting part 4 holds the plurality of transducers 2 at positions corresponding to at least the front, rear, left and right directions of the head, and therefore the warning target 10 at a position corresponding to at least the front, rear, left and right directions can be intuitively recognized. Therefore, the degree 13 to which approach to the warning target 10 at a position corresponding to the front, rear, left and right directions should be avoided can be intuitively recognized by the vibration of the transducers 2.

[0065] Also, in the first embodiment, as described above, the warning target information 11 includes the distance to the warning target 10 as the degree 13 at which approach to the warning target 10 should be avoided, and the control unit 6 is configured to vibrate at least one transducer 2 corresponding to the direction 12 of the warning target 10 among the multiple transducers 2 so that the direction 12 of the warning target 10 and the distance to the warning target 10 can be distinguished based on the warning target information 11 received by the warning device side communication unit 5. As a result, the pilot 90 to whom the warning device 1 is attached can recognize the distance to the warning target 10 as the degree 13 at which approach to the warning target 10 in the direction of the vibrating transducer 2 should be avoided by transmitting the vibration of the transducer 2. Therefore, the pilot 90 can appropriately perform an avoidance operation of the warning target 10 according to the recognized distance to the warning target 10.

[0066] Also, in the first embodiment, as described above, the warning target information 11 includes the degree of the situation of the warning target 10 as the degree 13 at which approach to the warning target 10 should be avoided, and the control unit 6 is configured to vibrate at least one of the multiple vibrators 2 corresponding to the direction 12 of the warning target 10 so as to be able to distinguish at least one of the direction 12 of the warning target 10 and the degree of the situation of the warning target 10 based on the warning target information 11 received by the warning device side communication unit 5. As a result, the pilot 90 to whom the warning device 1 is attached can recognize the degree of the situation of the warning target 10 as the degree 13 at which approach to the warning target 10 in the direction of the vibrating vibrator 2 should be avoided by transmitting the vibration of the vibrator 2. Therefore, the pilot 90 can appropriately perform an avoidance operation of the warning target 10 according to the degree of the situation of the warning target 10 recognized.

[0067] Also, in the first embodiment, as described above, the control unit 6 is configured to vibrate at least one of the multiple vibrators 2 corresponding to the direction 12 of the alarm target 10 by a vibration pattern 20 including vibration periods 21, 24, 27 in which vibration is performed and vibration stop periods 22, 25, 28 in which vibration is stopped and changing in response to the degree 13 of avoiding approach to the alarm target 10, based on the alarm target information 11 received by the alarm device side communication unit 5. This allows the pilot 90 to easily recognize the change in the vibration pattern 20 including the vibration periods 21, 24, 27 and the vibration stop periods 22, 25, 28, and therefore the pilot 90 can easily recognize the degree 13 of avoiding approach to the alarm target 10 in the direction of the vibrating vibrator 2. Also, unlike a case where a method of changing the vibration amplitude (vibration strength) of the vibrator 2 is adopted as a method of identifying the degree 13 of avoiding approach to the alarm target 10, it is possible to prevent the pilot 90 from feeling uncomfortable due to a strong amplitude strength and from being unable to recognize the vibration due to a weak amplitude strength.

[0068] In the first embodiment, as described above, the vibration pattern 20 is configured such that the vibration periods 21, 24, and 27 are constant regardless of the degree 13 of avoiding approach to the alarm target 10, and the vibration stop periods 22, 25, and 28 become shorter as the degree 13 of avoiding approach to the alarm target 10 becomes higher. This makes it possible to shorten the pitch (interval) of the vibration pattern 20 as the degree 13 of avoiding approach to the alarm target 10 becomes higher, while keeping the vibration periods 21, 24, and 27 constant regardless of the degree 13 of avoiding approach to the alarm target 10. Therefore, when the degree 13 of avoiding approach to the alarm target 10 is high, it can be intuitively recognized by the vibration of the vibrator 2 by the vibration pattern 20 with a short pitch (interval).

[0069] In the first embodiment, as described above, when the warning object information 11 includes the directions 12 of the warning objects 10 and the degree 13 of avoiding approach to the warning objects 10 for a predetermined number or less of warning objects 10, the control unit 6 sequentially vibrates each of the vibrators 2 corresponding to the directions 12 of the warning objects 10 based on the vibration pattern 20, and when the warning object information 11 includes the directions 12 of the warning objects 10 and the degree 13 of avoiding approach to the warning objects 10 for a predetermined number or more of warning objects 10, the control unit 6 is configured to vibrate each of the vibrators 2 corresponding to the directions 12 of the warning objects 10 that exceed the predetermined number in parallel based on the vibration pattern 20. As a result, when the number of the warning objects 10 exceeds the predetermined number, it is possible to switch to vibrating all of the vibrators 2 of the vibration objects in parallel. Therefore, even when the number of the warning objects 10 exceeds the predetermined number, it is possible to suppress oversight of the warning objects 10.

[0070] Furthermore, in the first embodiment, as described above, the vibration frequency of the multiple transducers 2 is set to a vibration frequency different from the natural frequency of the aircraft 100. As a result, since the vibration frequency of the multiple transducers 2 differs from the natural frequency of the aircraft 100, it is possible to prevent the vibration of the transducer 2 from being mixed in with the vibration of the aircraft 100, making it difficult to recognize the vibration of the transducer 2.

[0071] [Second embodiment] Next, a second embodiment of the present invention will be described with reference to Fig. 10. In the second embodiment, unlike the first embodiment in which the control unit 6 vibrates each of the plurality of vibrators 2 exceeding a predetermined number in parallel when the warning target information 11 includes the directions 12 of the plurality of warning targets 10 and the degree 13 of avoiding approach to the plurality of warning targets 10 that exceeds a predetermined number, the control unit 6 selects a plurality of warning targets 10 that is less than a predetermined number in descending order of the degree 13 of avoiding approach to the warning targets 10, and sequentially vibrates each of the vibrators 2 corresponding to the directions 12 of the warning targets 10 based on the selected warning targets 10 based on the vibration pattern 20. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and their description will be omitted.

[0072] (Multiple transducers vibrate for multiple alarm targets) When the warning target information 11 acquired by the control unit 6 (see FIG. 1) includes the directions 12 of the warning targets 10 and the degree 13 of avoiding approach to the warning targets 10 with respect to a plurality of warning targets 10 exceeding a predetermined number, the control unit 6 is configured to select a plurality of warning targets 10 less than the predetermined number in the order of increasing degree 13 of avoiding approach to the warning targets 10. In the second embodiment, the predetermined number is 3, and the number less than the predetermined number is 2. That is, when the warning target information 11 includes the directions 12 of the warning targets 10 and the degree 13 of avoiding approach to the warning targets 10 with respect to four or more warning targets 10, the control unit 6 is configured to select two warning targets 10 out of the four or more warning targets 10 in the order of increasing degree 13 of avoiding approach to the warning targets 10. Note that the predetermined number is not limited to 3, and the predetermined number may be 4 or more. When the predetermined number is 4 or more, the number less than the predetermined number may be 2, and the number less than the predetermined number may be 3 or more.

[0073] The control unit 6 is configured to sequentially vibrate each of the vibrators 2 corresponding to the directions 12 of the warning targets 10 based on the selected warning targets 10, based on the vibration pattern 20. That is, the control unit 6 sequentially vibrates each of the vibrators 2 corresponding to the directions 12 of the two warning targets 10 based on the two selected warning targets 10, based on the vibration pattern 20.

[0074] In FIG. 10, the pilot 90 faces forward (in the direction of flight of the aircraft 100). Steel towers 80a to 80d as warning targets 10 are located at the center, the left end, the diagonally forward left, and the right end of the field of view 15 of the pilot 90. The warning target information 11 (see FIG. 3) acquired by the control unit 6 (see FIG. 1) includes directions 12 of the four warning targets 10 and degrees 13 of avoidance of approach to the four warning targets 10 for four warning targets 10 that exceed a predetermined number. At this time, the degrees of avoidance of approach to the steel towers 80a to 80d as warning targets 10 are, in descending order, steel tower 80a located at the center of the field of view 15 of the pilot 90, steel tower 80b located diagonally forward left, steel tower 80c located at the left end, and steel tower 80d located at the right end. In this case, the control unit 6 selects the steel tower 80a located in the center of the pilot's 90's field of view 15 and the steel tower 80b located diagonally forward and to the left, in order of decreasing degree 13 of need to avoid approaching the alarm target 10.

[0075] Then, the control unit 6 sequentially vibrates the transducers 2a and 2h (see FIG. 2(b)) corresponding to the directions of the steel tower 80a located in the center of the field of view 15 of the selected pilot 90 and the steel tower 80b located diagonally forward and to the left, based on the vibration pattern 20. Specifically, vibration for a predetermined time based on the vibration pattern 20 of the transducer 2a corresponding to the forward direction and vibration for a predetermined time based on the vibration pattern 20 of the transducer 2h corresponding to the diagonally forward and to the left are alternately performed. The predetermined time is, for example, five seconds. Note that the predetermined time is not limited to five seconds.

[0076] (Vibration processing of multiple transducers based on alarm target information) With reference to FIG. 12, a vibration process of the multiple transducers 2 based on the alarm object information 11 by the control unit 6 according to the second embodiment will be described.

[0077] In step S11, the control section 6 acquires the alarm target information 11 received by the alarm device side communication section 5. After that, the process proceeds to step S12.

[0078] In step S12, if the acquired warning target information 11 includes directions 12 of multiple warning targets 10 and a degree 13 to avoid approaching the multiple warning targets 10 for a predetermined number or less of warning targets 10 (Yes in step S12), processing proceeds to step S13, and if the acquired warning target information 11 includes directions 12 of multiple warning targets 10 and a degree 13 to avoid approaching the multiple warning targets 10 for a predetermined number or more of warning targets 10 (No in step S12), processing proceeds to step S14.

[0079] In step S13, the control unit 6 sequentially vibrates each of the transducers 2 corresponding to the directions 12 of a plurality of alarm targets 10, the number of which is equal to or less than a predetermined number, based on the vibration pattern 20.

[0080] In step S14, the control unit 6 selects a plurality of warning targets 10, less than a predetermined number, in descending order of the degree 13 at which approach to the warning targets 10 should be avoided. After that, the process proceeds to step S15.

[0081] In step S15, the control unit 6 sequentially vibrates each of the transducers 2 corresponding to the direction 12 of the warning target 10 based on the selected warning target 10, based on the vibration pattern 20.

[0082] The operations of steps S11 to S15 are repeatedly performed for each control period.

[0083] The other configurations of the second embodiment are similar to those of the first embodiment.

[0084] (Effects of the second embodiment) In the second embodiment, the following effects can be obtained.

[0085] In the second embodiment, as described above, when the warning object information 11 includes the directions 12 of the warning objects 10 and the degree 13 of avoiding approach to the warning objects 10 for a predetermined number or less of warning objects 10, the control unit 6 sequentially vibrates each of the vibrators 2 corresponding to the directions 12 of the warning objects 10 based on the vibration pattern 20, and when the warning object information 11 includes the directions 12 of the warning objects 10 and the degree 13 of avoiding approach to the warning objects 10 for a predetermined number or more of warning objects 10, the control unit 6 selects the warning objects 10 less than the predetermined number in descending order of the degree 13 of avoiding approach to the warning objects 10, and sequentially vibrates each of the vibrators 2 corresponding to the directions 12 of the warning objects 10 based on the selected warning objects 10 based on the vibration pattern 20. As a result, when the number of the warning objects 10 exceeds a predetermined number, it is possible to selectively narrow down the number of vibrators 2 that are vibration targets and switch to vibrating sequentially. Therefore, since it is possible to properly recognize alarm targets 10 for which approach should be avoided to a high degree, it is possible to prevent failure to recognize alarm targets 10 for which approach should be avoided to a high degree even when the number of multiple alarm targets 10 exceeds a predetermined number.

[0086] Other effects of the second embodiment are similar to those of the first embodiment.

[0087] [Variations] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is indicated by the claims, not by the description of the embodiments above, and further includes all modifications (variations) within the meaning and scope of the claims.

[0088] For example, in the above first and second embodiments, the warning device is attached to the pilot of an aircraft, but the present invention is not limited to this. For example, the warning device may be configured to be attached to any of the driver, pilot, and crew of a moving body that moves with people on board, such as an automobile, an aircraft, or a ship.

[0089] In the above first and second embodiments, the warning device communication unit receives the warning target information from the aircraft communication unit, but the present invention is not limited to this. For example, a detection device, an image capture device, an image processing device, and the like that acquire the warning target information may be provided separately from the aircraft, and the warning device communication unit may be configured to receive the warning target information from a transmission unit included in the detection device, the image capture device, the image processing device, and the like.

[0090] In the above first and second embodiments, the degree to which approach to the alarm target should be avoided includes both the distance to the alarm target and the degree of the situation of the alarm target, but the present invention is not limited to this. For example, the degree to which approach to the alarm target should be avoided may be configured to include at least one of the distance to the alarm target and the degree of the situation of the alarm target.

[0091] In the above first and second embodiments, the vibrator corresponding to the direction of the alarm target is vibrated by changing the vibration pattern including the vibration period and the vibration stop period, but the present invention is not limited to this. For example, the vibration pattern may be changed by changing the vibration amplitude (vibration strength) of the vibrator corresponding to the direction of the alarm target.

[0092] In the first and second embodiments, the vibration pattern has a constant vibration period regardless of the degree to which the approach to the alarm target should be avoided, and the vibration stop period becomes shorter as the degree to which the approach to the alarm target should be avoided increases. However, the present invention is not limited to this. For example, the vibration pattern may be configured such that the vibration period becomes longer as the degree to which the approach to the alarm target should be avoided increases, and the vibration stop period is constant regardless of the degree to which the approach to the alarm target should be avoided. In other words, the length of one vibration pattern consisting of one vibration period and one vibration stop period is not particularly limited. For example, the vibration pattern may be configured by combining multiple vibration periods that are intermittently executed and a vibration stop period after the multiple vibration periods that are intermittently executed.

[0093] In the above first and second embodiments, the degree of the situation of the warning target included in the warning target information is the degree of disaster, but the present invention is not limited to this. For example, the degree of the situation of the warning target included in the warning target information may be configured to include the degree of urgency of avoiding approaching the warning target in rescue activities.

[0094] Since the alarm target information includes the degree of urgency in rescue operations as the degree of the alarm target's situation, crew members equipped with an alarm device can recognize the degree of urgency in rescue operations, and therefore, when there is a high urgency in avoiding approaching the alarm target, evasive action can be taken immediately by the vibration of the vibrator.

[0095] In the above first and second embodiments, the control unit refers to the stored table and vibrates the vibrator among the multiple vibrators corresponding to the direction of the alarm target with a vibration pattern based on the reference result, but the present invention is not limited to this. For example, the control unit may be configured to obtain a vibration pattern using an arithmetic expression or other known method instead of using a table, and vibrate the vibrator among the multiple vibrators corresponding to the direction of the alarm target with the obtained vibration pattern.

[0096] In addition, in the above first and second embodiments, an example has been shown in which the control unit changes the vibration method of the multiple vibrators when the warning target information includes directions of multiple warning targets and degrees to which approach to the multiple warning targets should be avoided for multiple warning targets exceeding a predetermined number, but the present invention is not limited to this.

[0097] For example, regardless of the number of multiple alarm targets included in the alarm target information, the control unit may be configured to sequentially vibrate each of the vibrators corresponding to the directions of the multiple alarm targets based on the vibration pattern. As a result, even if there are multiple alarm targets, each of the vibrators corresponding to the directions of the multiple alarm targets can be vibrated sequentially with a shift in vibration timing, thereby making it possible to reliably recognize each of the vibrators corresponding to the directions of the multiple alarm targets. As a result, it is possible to reliably recognize the degree to which approach to the alarm target in the direction of the vibrating vibrator should be avoided.

[0098] Furthermore, regardless of the number of multiple alarm targets included in the alarm target information, the control unit may be configured to vibrate each of the vibrators corresponding to the directions of the multiple alarm targets in parallel based on the vibration pattern. As a result, even if there are multiple alarm targets, by vibrating each of the vibrators corresponding to the directions of the multiple alarm targets in parallel based on the vibration pattern, all of the vibrators corresponding to the directions of the multiple alarm targets can be recognized approximately simultaneously. Therefore, the number and directions of the multiple alarm targets can be accurately recognized.

[0099] In the above first and second embodiments, an example was shown in which the input reception unit, the alarm device communication unit, the control unit, and the storage unit are provided in the first housing of the belt-like mounting unit, but the present invention is not limited to this. For example, the input reception unit, the alarm device communication unit, the control unit, and the storage unit may be provided in a second housing (not shown) formed separately from the belt-like mounting unit. In this case, the second housing may be attached to a part of the pilot other than the head or to the clothes worn by the pilot.

[0100] In the above first and second embodiments, an example was shown in which a belt-like mounting part including a holder for holding a plurality of transducers is mounted on the pilot's head, but the present invention is not limited to this. For example, a belt-like mounting part including a holder for holding a plurality of transducers may be configured to be mounted on the pilot's chest or arm. Also, for example, instead of the belt-like mounting part, a cap including a holder for holding a plurality of transducers may be configured to be mounted on the pilot's head.

[0101] In the above first and second embodiments, an example has been shown in which a belt-like mounting part including a holder for holding a plurality of transducers is mounted on the head of a pilot, but the present invention is not limited to this. For example, as shown in Fig. 13, an HMD support part 111 for supporting an HMD 110 may be mounted on the head of a pilot 90 as a belt-like mounting part 4, and the HMD support part 111 may be configured to include a plurality of transducers (see Fig. 2(b)) and a holder for holding the plurality of transducers (see Fig. 2(b)).

[0102] In the above first and second embodiments, the control unit is configured to control the change of the vibrator to be vibrated according to the movement of the pilot's head (the direction of the pilot's face) based on the warning target information and the head information, but the present invention is not limited to this. For example, the warning device communication unit may not receive head information, and the control unit may be configured to vibrate the vibrator corresponding to the direction of the warning target relative to the aircraft, regardless of the movement of the pilot's head (the direction of the pilot's face).

[0103] In the first and second embodiments, the vibration frequencies of the multiple transducers are set to a different vibration frequency from the aircraft's natural frequency, but the present invention is not limited to this. The vibration frequencies of the multiple transducers are not particularly limited.

[0104] [Aspects] It will be appreciated by those skilled in the art that the exemplary embodiments described above are examples of the following aspects.

[0105] (Item 1) A warning device (1) to be attached to a passenger of a vehicle, comprising: A plurality of vibrators (2) attached so as to be capable of transmitting vibrations to the occupant; A communication unit (5) for receiving warning target information (11) including a direction (12) of a warning target (10) and a degree (13) of the mobile object to be prevented from approaching the warning target; and a control unit (6) that performs control to vibrate at least one of the plurality of vibrators so as to identify, based on the warning target information received by the communication unit, the direction of the warning target and the degree to which the moving body should avoid approaching the warning target.

[0106] (Item 2) 2. The alarm device according to item 1, wherein the plurality of transducers are positioned in a plurality of directions different from each other with respect to a predetermined position (17) within an area (16) surrounded by the plurality of transducers.

[0107] (Item 3) The control unit is configured to vibrate at least one of the plurality of vibrators corresponding to a direction of the alarm target so as to identify the degree to which approach to the alarm target should be avoided by changing the vibration corresponding to the degree to which approach to the alarm target should be avoided based on the alarm target information received by the communication unit.

[0108] (Item 4) The moving object is an aircraft (100) including fixed-wing or rotary-wing aircraft; 4. The warning device described in item 2 or 3, wherein the control unit is configured to vibrate at least one of the plurality of vibrators corresponding to the direction of the warning target so as to identify the direction of the warning target and the degree to which approach to the warning target should be avoided based on the warning target information received by the communication unit through communication with the aircraft.

[0109] (Item 5) The vehicle further includes a belt-like attachment part (4) that is attached to the body of the occupant of the vehicle so as to surround a predetermined part of the body of the occupant, The warning device according to any one of items 1 to 4, wherein the belt-like mounting part includes a holder (8) that holds the plurality of transducers at positions on the belt-like mounting part that correspond to a plurality of different directions.

[0110] (Item 6) The belt-like attachment part is attached to the head of the occupant of the moving body, 6. The alarm device according to item 5, wherein the holding portion of the belt-shaped attachment portion holds the plurality of vibrators at positions corresponding to at least the front, rear, left, and right directions of the head.

[0111] (Item 7) The warning target information includes a distance to the warning target as a degree to which approach to the warning target should be avoided, 5. The alarm device according to any one of items 2 to 4, wherein the control unit is configured to vibrate at least one of the plurality of vibrators that corresponds to a direction of the alarm target so as to be able to identify the direction of the alarm target and the distance to the alarm target, based on the alarm target information received by the communication unit.

[0112] (Item 8) The warning target information includes a degree of a situation of the warning target as a degree to which approach to the warning target should be avoided, 5. The alarm device according to any one of items 2 to 4, wherein the control unit is configured to vibrate at least one of the plurality of vibrators that corresponds to a direction of the target to be warned, so as to be able to identify the direction of the target to be warned and the degree of the situation of the target to be warned, based on the target to be warned information received by the communication unit.

[0113] (Item 9) 9. The alarm device according to item 8, wherein the alarm target information includes a degree of urgency in rescue operations as a degree of the situation of the alarm target.

[0114] (Item 10) 5. The alarm device according to item 3 or 4, wherein the control unit is configured to vibrate at least one of the plurality of vibrators corresponding to a direction of the alarm target, based on the alarm target information received by the communication unit, using a vibration pattern (20) that includes vibration periods (21, 24, 27) during which vibration is executed and vibration stop periods (22, 25, 28) during which vibration is stopped, and that changes in accordance with the degree to which approach to the alarm target should be avoided.

[0115] (Item 11) Item 11. The alarm device according to item 10, wherein the vibration pattern is configured such that the vibration period is constant regardless of the degree to which approach to the alarm target should be avoided, and the vibration stop period becomes shorter as the degree to which approach to the alarm target should be avoided increases.

[0116] (Item 12) When the warning target information includes a plurality of directions of the warning targets and a degree of avoidance of approaching the plurality of warning targets with respect to the plurality of warning targets, Item 11. The alarm device according to item 10, wherein the control unit is configured to sequentially vibrate each of the vibrators corresponding to the directions of the plurality of alarm targets based on the vibration pattern.

[0117] (Item 13) When the warning target information includes a plurality of directions of the warning targets and a degree of avoidance of approaching the plurality of warning targets with respect to the plurality of warning targets, Item 11. The alarm device according to item 10, wherein the control unit is configured to vibrate each of the vibrators corresponding to the directions of the plurality of alarm targets in parallel based on the vibration pattern.

[0118] (Item 14) When the warning target information includes directions of the plurality of warning targets and a degree of avoidance of approaching the plurality of warning targets with respect to a predetermined number or less of the plurality of warning targets, The control unit sequentially vibrates each of the vibrators corresponding to the directions of the plurality of alarm targets based on the vibration pattern, When the warning target information includes directions of the plurality of warning targets and a degree of avoidance of approaching the plurality of warning targets with respect to the plurality of warning targets exceeding the predetermined number, the control unit selects the plurality of warning targets, which are less than the predetermined number, in order of increasing degree of need to avoid approaching the warning targets, and sequentially vibrates each of the vibrators corresponding to the directions of the warning targets based on the selected warning targets based on the vibration pattern; or Item 11. The alarm device according to item 10, wherein the control unit is configured to vibrate each of the vibrators corresponding to the directions of the plurality of alarm targets exceeding the predetermined number in parallel based on the vibration pattern.

[0119] (Item 15) 15. The alarm device according to any one of items 1 to 14, wherein a vibration frequency of the plurality of vibrators is set to a vibration frequency different from a natural vibration frequency of the moving body. [Explanation of symbols]

[0120] 1 Alarm device 2 Transducers 4 Belt-shaped attachment part 5. Alarm device communication unit (communication unit) 6 Control section 8 Holding part 10. Alert target 11. Information on warning targets 12 Direction of the warning target 13 Degree to which approach to the warning target should be avoided 16 Region surrounded by multiple oscillators 17 In Place 20, 23, 26 vibration patterns 21, 24, 27 Vibration Periods 22, 25, 28 Vibration stop period 100 aircraft

Claims

1. An alarm device attached to a passenger of a moving body, comprising: A plurality of vibrators attached to the vehicle occupant so as to be capable of transmitting vibrations to the vehicle occupant; a communication unit that receives warning target information including a direction of a warning target and a degree to which the moving body should avoid approaching the warning target; and a control unit that controls vibration of at least one of the plurality of vibrators so as to identify, based on the warning target information received by the communication unit, a direction of the warning target and a degree to which the moving body should avoid approaching the warning target.

2. The alarm device according to claim 1 , wherein the plurality of vibrators are positioned in a plurality of directions different from one another with respect to a predetermined position within an area surrounded by the plurality of vibrators.

3. 3. The alarm device according to claim 2, wherein the control unit is configured to vibrate at least one of the plurality of vibrators corresponding to a direction of the alarm target so as to identify the degree to which approach to the alarm target should be avoided by changing the vibration corresponding to the degree to which approach to the alarm target should be avoided based on the alarm target information received by the communication unit.

4. The moving object is an aircraft including a fixed wing or a rotary wing, 3. The warning device as described in claim 2, wherein the control unit is configured to vibrate at least one of the plurality of transducers that corresponds to a direction of the warning target so as to identify the direction of the warning target and the degree to which approach to the warning target should be avoided, based on the warning target information received by the communication unit through communication with the aircraft.

5. The vehicle further includes a belt-like attachment part that is attached to the body of the occupant of the vehicle so as to surround a predetermined part of the body of the occupant of the vehicle, The alarm device according to claim 1 , wherein the belt-like mounting part includes a holder that holds the plurality of vibrators at positions on the belt-like mounting part that correspond to a plurality of directions that are different from one another.

6. The belt-like attachment part is attached to the head of the occupant of the moving body, The alarm device according to claim 5 , wherein the holder of the belt-like attachment part holds the plurality of vibrators at positions corresponding to at least the front, rear, left and right directions of the head.

7. The warning target information includes a distance to the warning target as a degree to which approach to the warning target should be avoided, 3. The alarm device according to claim 2, wherein the control unit is configured to vibrate at least one of the plurality of vibrators that corresponds to a direction of the alarm target so as to be able to identify the direction of the alarm target and the distance to the alarm target based on the alarm target information received by the communication unit.

8. The warning target information includes a degree of a situation of the warning target as a degree to which approach to the warning target should be avoided, 3. The alarm device according to claim 2, wherein the control unit is configured to vibrate at least one of the plurality of vibrators that corresponds to a direction of the target to be warned so as to be able to identify the direction of the target to be warned and the degree of the situation of the target to be warned, based on the target to be warned information received by the communication unit.

9. The alarm device according to claim 8 , wherein the alarm target information includes a degree of urgency in rescue operations as a degree of the situation of the alarm target.

10. 4. The alarm device according to claim 3, wherein the control unit is configured to vibrate at least one of the plurality of vibrators corresponding to a direction of the alarm target, based on the alarm target information received by the communication unit, with a vibration pattern that includes a vibration period during which vibration is executed and a vibration stop period during which vibration is stopped, and that changes in accordance with the degree to which approach to the alarm target should be avoided.

11. 11. The alarm device according to claim 10, wherein the vibration pattern is configured such that the vibration period is constant regardless of a degree to which approach to the object to be warned should be avoided, and that the vibration stop period becomes shorter as a degree to which approach to the object to be warned should be avoided becomes higher.

12. When the warning target information includes a plurality of directions of the warning targets and a degree of avoidance of approaching the plurality of warning targets with respect to the plurality of warning targets, The alarm device according to claim 10 , wherein the control unit is configured to sequentially vibrate each of the vibrators corresponding to directions of the plurality of alarm targets based on the vibration pattern.

13. When the warning target information includes a plurality of directions of the warning targets and a degree of avoidance of approaching the plurality of warning targets with respect to the plurality of warning targets, The alarm device according to claim 10 , wherein the control unit is configured to vibrate each of the vibrators corresponding to the directions of the plurality of alarm targets in parallel based on the vibration pattern.

14. When the warning target information includes directions of the plurality of warning targets and a degree of avoidance of approaching the plurality of warning targets with respect to a predetermined number or less of the plurality of warning targets, The control unit sequentially vibrates each of the vibrators corresponding to the directions of the plurality of alarm targets based on the vibration pattern, When the warning target information includes directions of the plurality of warning targets and a degree of avoidance of approaching the plurality of warning targets with respect to the plurality of warning targets exceeding the predetermined number, the control unit selects the plurality of warning targets, which are less than the predetermined number, in order of increasing degree of need to avoid approaching the warning targets, and sequentially vibrates each of the vibrators corresponding to the directions of the warning targets based on the selected warning targets based on the vibration pattern; or The alarm device according to claim 10 , wherein the control unit is configured to vibrate each of the vibrators corresponding to directions of the plurality of alarm targets exceeding the predetermined number in parallel based on the vibration pattern.

15. The alarm device according to claim 1 , wherein the vibration frequencies of the plurality of vibrators are set to a vibration frequency different from a natural vibration frequency of the moving body.

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