Moving body response device

Abstract

The present application provides a mobile body response device that can respond to a search operation of a mobile body by a portable terminal and perform notification from the mobile body in a manner that makes it easy to grasp the position of the mobile body. The mobile body response device (10) includes a communication control section (21) that performs wireless communication with a portable key (50), an electric field strength measurement section (22) that measures the electric field strength of a notification request signal transmitted from the portable terminal (50) when the notification request signal is received by the communication control section (21), a notification level setting section (25) that sets a notification level for the outside of the mobile body (1) based on the electric field strength of the notification request signal, and a notification control section (26) that performs notification to the outside of the mobile body (1) in accordance with the notification level set by the notification level setting section (25).

Description

Technical Field

[0001] The present invention relates to a mobile body response device. Background Art

[0002] In the past, the following vehicle finding system has been proposed: when a vehicle finding command is sent from a portable terminal to the electronic key of a vehicle in response to an operation of a vehicle finder on a portable terminal, the electronic key intermittently and repeatedly sends a vehicle finding signal to the vehicle-mounted device, and when the vehicle-mounted device receives the vehicle finding signal, a notification is made outside the vehicle (for example, refer to Patent Document 1).

[0003] In addition, the following vehicle search system has been proposed: multiple distance detection signals with different transmission strengths are sent from the vehicle to a portable device, the portable device receives two or more distance detection signals with reception strengths within an effective range, and the distance to the vehicle is detected based on the reception strengths of the two or more distance detection signals (for example, refer to patent document 2).

[0004] Prior art literature

[0005] Patent Document 1

[0006] Japanese Patent Application Laid-Open No. 2013-164805

[0007] Patent Document 2

[0008] Japanese Patent Application Laid-Open No. 2013-88286 Summary of the Invention

[0009] Problems to be solved by the invention

[0010] As described above, when the location of a mobile object such as a vehicle is notified to a user by a notification from the mobile object in response to a search operation of the mobile terminal for the mobile object, it is preferable to notify the user in a manner that allows the user to easily grasp the location of the mobile object.

[0011] The present invention has been developed in light of the above background, and its object is to provide a mobile object response device capable of providing notification from a mobile object in a manner that facilitates ascertaining the location of the mobile object in response to a search operation for the mobile object by a mobile terminal. Furthermore, the present invention aims to provide safe, inexpensive, and easily accessible mobile object response devices that allow rapid access to a sustainable transportation system for all.

[0012] Means for solving problems

[0013] As a method for achieving the above-mentioned purpose, there can be cited a mobile body response device, which is used in a mobile body, wherein the mobile body response device includes: a communication control unit, which performs wireless communication with a portable terminal; an electric field strength measuring unit, which measures the electric field strength of the notification request signal when the communication control unit receives the notification request signal sent from the portable terminal; a notification level setting unit, which sets the notification level for the outside of the mobile body based on the electric field strength of the notification request signal; and a notification control unit, which notifies the outside of the mobile body according to the notification level set by the notification level setting unit.

[0014] In the above-mentioned moving object response device, the notification level setting unit may be configured to set the notification level to the first level when the electric field strength of the notification request signal measured by the electric field strength measuring unit is equal to or less than a first threshold value.

[0015] In the above-mentioned mobile body response device, it can also be configured that when the electric field strength of the notification request signal measured by the electric field strength measuring unit is greater than the first threshold and below the second threshold, the notification level setting unit sends a confirmation request signal to the portable terminal through the communication control unit, and when a confirmation response signal corresponding to the confirmation request signal is not received from the portable terminal through the communication control unit, the notification level is set to a second level whose notification strength is lower than the first level.

[0016] Here, the intensity of the notification refers to the effectiveness of calling attention to the outside of the moving body. For example, when the notification is performed by outputting sound, the higher the sound pressure of the output sound, the higher the intensity of the notification.

[0017] In the mobile object response device, the notification level setting unit may set the notification level to a third level having a lower notification intensity than the second level when the confirmation response signal corresponding to the confirmation request signal is received from the portable terminal via the communication control unit.

[0018] In the above-mentioned mobile object response device, it can also be configured so that when the electric field strength of the notification request signal measured by the electric field strength measuring unit is greater than the second threshold, the notification level setting unit sets the notification level to a fourth level having a notification strength lower than the third level.

[0019] In the above-mentioned mobile body response device, it can also be configured that when the communication control unit receives the notification request signal again from the portable terminal within a specified time from the moment when the communication control unit receives the notification request signal, the notification control unit makes the intensity of the notification higher than the previous notification and executes the notification again.

[0020] In the above-mentioned mobile body response device, it can also be configured that the mobile body response device has a peripheral illumination recognition unit that recognizes the illumination of the surroundings of the mobile body, and the notification control unit executes the notification based on lighting of the lamp body possessed by the mobile body when the illumination of the surroundings of the mobile body recognized by the peripheral illumination recognition unit is below a specified level.

[0021] In the above-mentioned mobile body response device, it can also be constructed as follows: the mobile body response device has: a peripheral image acquisition unit, which acquires a captured image of the periphery of the mobile body captured by a camera; and a person recognition unit, which recognizes a person holding a portable device from the captured image, and when the person recognition unit recognizes the person holding the portable device, the notification level setting unit sets the notification level lower than when the person recognition unit does not recognize the person holding the portable device.

[0022] In the above-mentioned mobile object response device, the notification control unit may be configured to perform the notification by outputting sound, and to change the notification level of the notification by varying the sound pressure of the output sound or the number of times the sound is output.

[0023] Effects of the Invention

[0024] According to the above-described mobile object response device, it is possible to provide a notification from the mobile object in a manner that makes it easy to grasp the position of the mobile object in response to the mobile terminal's search operation for the mobile object. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of a mobile object response device and a vehicle equipped with the mobile object response device.

[0026] Figure 2 This is a flowchart of the response notification process.

[0027] Figure 3 This is a setting table for notification levels.

[0028] Figure 4 This is an explanatory diagram of the electric field strength and notification level corresponding to the position of the portable key relative to the vehicle.

[0029] Description of Reference Numerals

[0030] 1…Vehicle (mobile object), 10…Mobile object response device, 11…Communication unit, 12…Illuminance sensor, 13…Camera, 14…Buzzer, 15…Lamp, 20…Processor, 21…Communication control unit, 22…Electric field intensity measuring unit, 23…Surrounding image acquisition unit, 24…Person recognition unit, 25…Notification level setting unit, 26…Notification control unit, 40…Memory, 41…Control program, 50…Portable key (portable terminal), 51…Door lock switch, 52…Door unlock switch, U…User DETAILED DESCRIPTION

[0031] [1. Structure of Mobile Object Response Device]

[0032] Reference Figure 1 The structure of the mobile object response device 10 of this embodiment will be described. The mobile object response device 10 can be configured as part of the functions of the vehicle control unit mounted on the vehicle 1, or it can be a dedicated device. The vehicle 1 corresponds to the mobile object of the present invention. The mobile object response device 10 is connected to the communication unit 11, the illuminance sensor 12, the camera 13, the buzzer 14, and the lamp 15 mounted on the vehicle 1.

[0033] The communication unit 11 has the ability to perform wireless communications using LF (Low Frequency), RF (Radio Frequency), BLE (Bluetooth Low Energy; Bluetooth is a registered trademark), and UWB (UltraWide Band). The communication unit 11 is connected to the LF antenna 11a, RF antenna 11b, BLE antenna 11c, and UWB antenna 11d included in the vehicle 1, and transmits and receives wireless signals via these antennas 11a-11d.

[0034] exist Figure 1 , a state in which the mobile object response device 10 wirelessly communicates with a portable key (FOB key) 50 of the vehicle 1, which is held by a user U of the vehicle 1, via the communication unit 11 is shown. The portable key 50 corresponds to the portable terminal of the present invention and has a door lock switch 51 for instructing the locking of the doors of the vehicle 1 and a door unlock switch 52 for instructing the unlocking of the doors.

[0035] When the door lock switch 51 is operated, the portable key 50 transmits a door lock instruction signal containing authentication data to the vehicle 1 via RF communication. Furthermore, when the door unlock switch 52 is operated, the portable key 50 transmits a door unlock signal containing authentication data to the vehicle 1 via RF communication. Furthermore, when a touch sensor (not shown) provided on a door handle of the vehicle 1 is turned on, the mobile response device 10 performs RF and RF communication with the portable key 50 to authenticate the portable key 50. If authentication is successful, the doors of the vehicle 1 are unlocked.

[0036] The illuminance sensor 12 detects the illuminance around the vehicle 1 and outputs an illuminance detection signal to the moving object response device 10. The camera 13 captures the surrounding area of ​​the vehicle 1 and outputs the captured image to the moving object response device 10. The buzzer 14 outputs a predetermined notification sound to the outside of the vehicle 1. The lamps 15 include headlights, small lights, taillights, brake lights, and the like. The lamps 15 correspond to the lamp body of the present invention. The operation of the buzzer 14 and lamps 15 is controlled by a control signal output from the moving object response device 10.

[0037] The mobile object response device 10 is a control unit composed of a processor 20, a memory 40, an interface circuit (not shown), and the like. The processor 20 reads and executes a control program 41 for the mobile object response device 10 stored in the memory 40, thereby functioning as a communication control unit 21, an electric field intensity measurement unit 22, a surrounding image acquisition unit 23, a person recognition unit 24, a notification level setting unit 25, and a notification control unit 26.

[0038] The communication control unit 21 controls wireless communication with the portable key 50 performed by the communication unit 11, and transmits and receives wireless signals to and from the portable key 50. Upon receiving a wireless signal transmitted from the portable key 50 via RF communication, the electric field strength measurement unit 22 measures the electric field strength of the received wireless signal using, for example, RSSI (Receive Signal Strength Indication).

[0039] The surrounding image acquisition unit 23 acquires the image of the surroundings of the vehicle 1 captured by the camera 13. The person recognition unit 24 recognizes the person holding the portable device from the captured image acquired by the surrounding image acquisition unit 23. The notification level setting unit 25 Figure 3 The notification level is set according to the setting table shown in FIG. The notification control unit 26 performs notification based on the notification level set by the notification level setting unit 25. Details of the processing performed by the notification level setting unit 25 and the notification control unit 26 will be described later.

[0040] [2. Response notification processing]

[0041] Reference Figure 3、 Figure 4 ,according to Figure 2 The flowchart shown in FIG. 1 illustrates the response notification process executed by the mobile object response device 10 .

[0042] exist Figure 2 In step S1, when the notification control unit 26 receives two consecutive door lock signals from the portable key 50 via the communication control unit 21 within a predetermined time (e.g., 5 seconds), it recognizes the second door lock signal as a notification request signal requesting notification of the location of the vehicle 1 and proceeds to step S2. In step S2, the notification control unit 26 starts a timer for identifying a request for further notification in step S40, described later. The timer's end time is set to, for example, approximately 10 seconds.

[0043] In the next step S3, the electric field strength measuring unit 22 measures the electric field strength E of the notification request signal. The next steps S4 to S7, S20 to S22, and S30 are the processing of the notification level setting unit 25. The notification level setting unit 25 sets the notification level according to the following steps: Figure 3 The setting table shown sets the notification level corresponding to the electric field strength E of the notification request signal.

[0044] Specifically, the notification level setting unit 25 determines in step S4 whether the electric field strength E is greater than the first threshold Eth1 and less than the second threshold Eth2 (Eth1 < E ≤ Eth2). If the electric field strength E of the notification request signal is greater than the first threshold Eth1 and less than the second threshold Eth2, the notification level setting unit 25 proceeds to step S5, where the communication control unit 21 transmits a confirmation request signal to the portable key 50.

[0045] In the next step S6, the notification level setting unit 25 determines whether the communication control unit 21 has received the confirmation response signal transmitted from the portable key 50. If the communication control unit 21 has received the confirmation response signal, the notification level setting unit 25 proceeds to step S7 and sets the notification level to the second level. If the communication control unit 21 has not received the confirmation response signal, the notification level setting unit 25 proceeds to step S30 and sets the notification level to the third level.

[0046] On the other hand, in step S4, if the electric field strength E of the notification request signal is less than or equal to the first threshold value Eth1 (E≤Eth1) or greater than the second threshold value Eth2 (Eth2<E), the notification level setting unit 25 advances the process to step S20. In step S20, the notification level setting unit 25 determines whether the electric field strength E of the notification request signal is less than or equal to the first threshold value Eth1.

[0047] Furthermore, when the electric field strength E of the notification request signal is less than or equal to the first threshold value Eth1 (E ≤ Eth1), the notification level setting unit 25 advances the process to step S21 and sets the notification level to the fourth level. On the other hand, when the electric field strength E of the notification request signal is not less than or equal to the first threshold value Eth1 (in this case, Eth2 < E), the notification level setting unit 25 advances the process to step S22 and sets the notification level to the first level.

[0048] In the next step S8, the notification control unit 26 outputs a notification sound from the buzzer 14 at the sound pressure of the notification level set by the notification level setting unit 25. Here, the notification level is set so that as the first level increases to the fourth level, the sound pressure of the notification sound output from the buzzer 14 increases, and the intensity of the notification increases.

[0049] As explained above, Figure 4 The following method is described: the level of notification to the outside of the vehicle 1 is switched to four levels, ie, level 1 to level 4, according to the electric field strength E of the notification request signal and the distance between the vehicle 1 and the portable key 50. Figure 4 The circle A1 indicates the range where the electric field strength E is assumed to be greater than the second threshold Eth2 when the vehicle 1 receives the notification request signal transmitted from the portable key 50. The circle A2 indicates the range where the electric field strength E is assumed to be greater than the first threshold Eth1 (< the second threshold Eth2).

[0050] exist Figure 4 In the figure, C4 indicates that the portable key 50 is located outside the range of A2. In this case, the notification level setting unit 25 sets the notification level to the fourth level. Furthermore, the notification control unit 26 outputs a notification sound from the buzzer 14 at the fourth level of sound pressure. C3 indicates that the portable key 50 is located outside A2 within the range of A2, outside A1, and closer to the outside of A2. No confirmation response signal is received from the vehicle 1. In this case, the notification level setting unit 25 sets the notification level to the third level. Then, the notification control unit 26 outputs a notification sound from the buzzer 14 at the third level of sound pressure (less than the fourth level of sound pressure).

[0051] C2 indicates the following situation: the portable key 50 is located in the range of A2 on the outside of A1 and is closer to the inside of A2, and a confirmation response signal is received on the vehicle 1 side. In this case, the notification level setting unit 25 sets the notification level to the second level. Then, the notification control unit 26 outputs a notification sound from the buzzer 14 at the second level sound pressure (< the third level sound pressure). C1 indicates a state in which the portable key 50 is located within the range of A1. In this case, the notification level setting unit 25 sets the notification level to the first level. Furthermore, the notification control unit 26 outputs a notification sound from the buzzer 14 at the first level sound pressure (< the second level sound pressure).

[0052] As the portable key 50 approaches the vehicle 1 in the order of C4 → C3 → C2 → C1, the sound pressure of the notification sound output from the buzzer 14 decreases (the intensity of the notification decreases). Therefore, for a user U who attempts to operate the portable key 50 (a search operation) to find the vehicle 1, the difference in the sound pressure of the notification sound can easily determine the location of the vehicle 1.

[0053] return Figure 2 Referring to the flowchart of FIG. 5 , in step S9, the notification control unit 26 determines whether the timer has expired. If the timer has expired, the process proceeds to step S10 to terminate the response notification process. On the other hand, if the timer has not expired, the notification control unit 26 proceeds to step S31 to determine whether a notification request signal has been received from the portable key 50.

[0054] Then, if the notification control unit 26 receives a notification request signal from the portable key 50, the process proceeds to step S32. If it does not receive a notification request signal from the portable key 50, the process proceeds to step S9. In step S32, the notification control unit 26 performs a notification at a higher level than the previous notification (notification in step S8), and the process proceeds to step S10. For example, if the notification tone was output from the buzzer 14 at the second level of sound pressure in step S7, the notification tone is output from the buzzer 14 at a higher sound pressure level, such as the third or fourth level, in step S32.

[0055] [3. Other Implementation Methods]

[0056] In the above embodiment, the vehicle 1 is exemplified as the mobile object of the present invention. However, the mobile object of the present invention may be any mobile object other than a vehicle, such as an aircraft or a ship, as long as it can communicate wirelessly with a portable terminal.

[0057] In the above embodiment, a portable key is exemplified as the portable terminal of the present invention, but the portable terminal of this embodiment may also be a smartphone, mobile phone, or tablet terminal installed with a remote operation application for the vehicle 1. In this case, wireless communication between the portable terminal and the vehicle 1 may also be performed via BLE communication.

[0058] In the above embodiment, the notification control unit 26 performs notification based on the output of the notification sound from the buzzer 14, but it is also possible to perform notification based on the lighting or flashing of the lamps 15. When notification is performed based on the lighting or flashing of the lamps 15, the notification level can be changed according to the number of lamps 15 that are lit or the number of flashes.

[0059] In particular, for example, at night or when the vehicle 1 is parked in an indoor parking lot and the illuminance around the vehicle 1 detected by the illuminance sensor 12 is below a predetermined level, the notification control unit 26 may light or flash the lamp 15 to provide a notification.

[0060] In the above embodiment, when the person recognition unit 24 recognizes a person holding a portable device from an image of the surroundings of the vehicle 1, the intensity of the notification from the notification control unit 26 may be lowered compared to when no person holding a portable device is recognized. Thus, when the user U holding a portable key is near the vehicle 1, the sound pressure of the notification sound from the buzzer 14 can be reduced, thereby preventing the user U from feeling that the notification sound is too loud.

[0061] In the above embodiment, the notification control unit 26 changes the sound pressure of the notification sound output from the buzzer 14 according to the notification level. In another embodiment, the notification control unit 26 may also change the number of times the notification sound is output from the buzzer 14 according to the notification level. For example, the higher the notification level, the higher the number of times the notification sound is output, thereby increasing the intensity of the notification.

[0062] In order to facilitate understanding of the present invention, Figure 1 This is a schematic diagram showing the structure of the mobile body response device 10 by dividing it into sections according to the main processing contents. The mobile body response device 10 may also be composed of other sections. In addition, the processing of each component may be executed by one hardware unit or by multiple hardware units. Figure 2 The processing of each component shown may be executed by one program or by a plurality of programs.

[0063] [4. Structures Supported by the Above-mentioned Embodiments]

[0064] The above-mentioned embodiment is a specific example of the following structure.

[0065] (Structure 1) A mobile body response device, which is used in a mobile body, wherein the mobile body response device has: a communication control unit, which performs wireless communication with a portable terminal; an electric field strength measuring unit, which measures the electric field strength of a notification request signal sent from the portable terminal when the communication control unit receives the notification request signal; a notification level setting unit, which sets a notification level for the outside of the mobile body based on the electric field strength of the notification request signal; and a notification control unit, which notifies the outside of the mobile body according to the notification level set by the notification level setting unit.

[0066] According to the mobile object response device of configuration 1, when a notification request signal transmitted from a portable terminal is received by the mobile object in response to a mobile object user, a notification is transmitted to the exterior of the mobile object at a notification level based on the electric field strength of the notification request signal, which varies depending on the distance between the mobile object and the portable terminal. This makes it possible to easily ascertain the location of the mobile object by providing notification from the mobile object in response to a mobile terminal search operation for the mobile object.

[0067] (Structure 2) The mobile object response device according to Structure 1, wherein the notification level setting unit sets the notification level to the first level when the electric field strength of the notification request signal measured by the electric field strength measuring unit is equal to or less than a first threshold value.

[0068] According to the mobile object response device of configuration 2, when the electric field strength of the notification request signal is below the first threshold, the user operating the mobile terminal can recognize that the distance between the mobile terminal and the mobile object is long to a certain extent by performing notification based on the first level.

[0069] (Structure 3) A mobile body response device according to Structure 2, wherein the notification level setting unit sends a confirmation request signal to the portable terminal through the communication control unit when the electric field strength of the notification request signal measured by the electric field strength measuring unit is greater than the first threshold and less than the second threshold, and sets the notification level to a second level having a notification strength lower than the first level when no confirmation response signal corresponding to the confirmation request signal is received from the portable terminal through the communication control unit.

[0070] According to the mobile object response device of configuration 3, when the electric field strength of the notification request signal is greater than a first threshold value and less than a second threshold value, the mobile object and the portable terminal can be confirmed to be able to transmit and receive the confirmation request signal and the confirmation response signal, thereby enabling more detailed identification of the degree of separation between the mobile object and the portable terminal. Furthermore, when the confirmation response signal is not received, the notification level setting unit sets the notification level to a second level lower than the first level, thereby notifying the user operating the portable terminal that the distance between the portable terminal and the mobile object is short.

[0071] (Structure 4) According to the mobile body response device described in Structure 3, when the confirmation response signal corresponding to the confirmation request signal is received from the portable terminal through the communication control unit, the notification level setting unit sets the notification level to a third level whose notification intensity is lower than the second level.

[0072] According to the mobile object response device of configuration 4, when the notification level setting unit receives a confirmation response signal from the portable terminal in response to the transmission of the confirmation request signal, the notification level is set to a third level lower than the second level. This allows notification to a user operating the portable terminal that the distance between the mobile object and the portable terminal is shorter than the distance corresponding to the second level.

[0073] (Structure 5) The mobile body response device according to Structure 4, wherein, when the electric field strength of the notification request signal measured by the electric field strength measuring unit is greater than the second threshold value, the notification level setting unit sets the notification level to a fourth level having a lower intensity of notification than the third level.

[0074] According to the mobile body response device of structure 5, when the electric field strength of the notification request signal is greater than the second threshold, the notification level is set to the fourth level which is lower than the third level, thereby notifying the user operating the portable terminal that the distance between the mobile body and the portable terminal is shorter than the distance corresponding to the third level.

[0075] (Structure 6) A mobile body response device according to any one of Structures 1 to 5, wherein, when the communication control unit receives the notification request signal again from the portable terminal within a specified time from the moment when the communication control unit receives the notification request signal, the notification control unit makes the intensity of the notification higher than the previous notification and executes the notification again.

[0076] According to the mobile object response device of configuration 6, the user of the mobile terminal can increase the notification level and execute the notification from the mobile object again by continuing to operate the mobile terminal. This makes it easier for the user to confirm the position of the mobile object.

[0077] (Structure 7) A mobile body response device according to any one of Structures 1 to 6, wherein the mobile body response device has a peripheral illumination recognition unit that recognizes the illumination of the surroundings of the mobile body, and the notification control unit executes the notification based on lighting of a lamp possessed by the mobile body when the illumination of the surroundings of the mobile body recognized by the peripheral illumination recognition unit is below a specified level.

[0078] According to the mobile object response device of configuration 7, when the illumination around the mobile object is low, such as at night, the lighting of the lamp body can provide a notification that is easily visible to the user holding the mobile terminal.

[0079] (Structure 8) A mobile body response device according to any one of Structures 1 to 7, wherein the mobile body response device comprises: a peripheral image acquisition unit that acquires a captured image of the periphery of the mobile body captured by a camera; and a person recognition unit that recognizes a person holding a portable device from the captured image, and when the person recognition unit recognizes the person holding the portable device, the notification level setting unit sets the notification level lower than when the person recognition unit does not recognize the person holding the portable device.

[0080] According to the mobile object response device of configuration 8, when it is estimated from the image captured by the camera that a user holding a portable terminal is located near the mobile object, the notification level can be lowered and notification can be performed.

[0081] (Structure 9) The mobile object response device according to any one of Structures 1 to 8, wherein the notification control unit performs the notification by outputting sound, and changes the notification level of the notification by varying the sound pressure of the output sound or the number of times the sound is output.

[0082] According to the moving object response device of configuration 9, when notification is performed by sound output, the user holding the portable terminal can recognize the degree of separation between the portable terminal and the moving object based on the difference in sound pressure or the number of times the sound is output.

Claims

1. A mobile body response device, the mobile body response device being used in a mobile body, wherein: The mobile body response device has: a communication control unit for performing wireless communication with the portable terminal; an electric field strength measuring unit configured to measure the electric field strength of the notification request signal when the communication control unit receives the notification request signal transmitted from the portable terminal; a notification level setting unit that, when the electric field strength measuring unit measures the electric field strength of the notification request signal, transmits a confirmation request signal to the portable terminal via the communication control unit, and sets a notification level for the exterior of the mobile object based on whether a confirmation response signal transmitted from the portable terminal in response to receipt of the confirmation request signal is received via the communication control unit and the electric field strength of the notification request signal measured by the electric field strength measuring unit; as well as A notification control unit performs notification to the outside of the moving object according to the notification level set by the notification level setting unit.

2. The mobile object response device according to claim 1, wherein: When the communication control unit receives the notification request signal again from the portable terminal within a predetermined time from the time when the communication control unit receives the notification request signal, the notification control unit increases the intensity of the notification compared to the previous notification and performs the notification again.

3. The mobile object response device according to claim 1, wherein: The mobile body response device has: a peripheral image acquisition unit that acquires an image of the periphery of the moving object captured by a camera; and a person recognition unit for recognizing a person holding a portable device from the captured image; When the person recognition unit recognizes a person holding a portable device, the notification level setting unit sets the notification level lower than when the person recognition unit does not recognize a person holding a portable device.

4. The mobile object response device according to any one of claims 1 to 3, wherein: The notification level setting unit sets the notification level to a first level when the electric field strength of the notification request signal measured by the electric field strength measuring unit is equal to or less than a first threshold value.

5. The mobile object response device according to claim 4, wherein: The notification level setting unit sends a confirmation request signal to the portable terminal through the communication control unit when the electric field strength of the notification request signal measured by the electric field strength measuring unit is greater than the first threshold and less than the second threshold; and sets the notification level to a second level having a notification strength lower than the first level if no confirmation response signal corresponding to the confirmation request signal is received from the portable terminal through the communication control unit.

6. The mobile object response device according to claim 5, wherein: The notification level setting unit sets the notification level to a third level having a lower intensity of notification than the second level when the confirmation response signal corresponding to the confirmation request signal is received from the portable terminal via the communication control unit.

7. The mobile object response device according to claim 6, wherein: When the electric field intensity of the notification request signal measured by the electric field intensity measurement unit is greater than the second threshold value, the notification level setting unit sets the notification level to a fourth level having a lower intensity of notification than the third level.

8. The mobile object responding device according to any one of claims 1 to 3, wherein: The mobile object response device includes a peripheral illuminance recognition unit for recognizing the illuminance of the surroundings of the mobile object. The notification control unit executes the notification by lighting a lamp included in the moving object when the illuminance around the moving object recognized by the ambient illuminance recognition unit is equal to or lower than a predetermined level.

9. The mobile object response device according to any one of claims 1 to 3, wherein: The notification control unit performs the notification by outputting sound, and changes the notification level of the notification by varying the sound pressure of the output sound or the number of times the sound is output.

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