JP7642510B2 - Mobile response device - Google Patents

Description

The present invention relates to a mobile response device.

Conventionally, a car finder system has been proposed in which, when a car finder command is sent from a mobile terminal to a vehicle's electronic key in response to a car finder operation on the mobile terminal, the electronic key intermittently and repeatedly transmits a car finder signal to an onboard unit, and when the onboard unit receives the car finder signal, an outside-vehicle alert is issued (see, for example, Patent Document 1).
In addition, a car finder system has been proposed in which a vehicle transmits multiple distance detection signals with different transmission strengths to a portable unit, and the portable unit receives two or more distance detection signals whose reception strengths are within an effective range, and detects the distance to the vehicle based on the reception strengths of the two or more distance detection signals (see, for example, Patent Document 2).

JP 2013-164805 A JP 2013-88286 A

As described above, when notifying a user of the location of a moving body such as a vehicle by having the moving body make an alert in response to operation of the viewfinder of the moving body using a mobile terminal, it is desirable for the alert to be made in a manner that allows the user to easily grasp the location of the moving body.
The present invention has been made in view of the above background, and aims to provide a mobile object response device that can receive notifications from a mobile object in a manner that makes it easy to grasp the location of the mobile object in response to a finder operation of the mobile object using a mobile terminal. Another aim of the present invention is to provide everyone with quick access to a safe, inexpensive, easily usable, and sustainable transportation system by providing such a mobile object response device.

As a first aspect for achieving the above-mentioned object, there is provided a mobile body response device for use in a mobile body, the mobile body response device comprising: a communication control unit that performs wireless communication with a mobile terminal; an electric field strength measurement unit that measures the electric field strength of an alert request signal transmitted from the mobile terminal when the alert request signal is received by the communication control unit ; an alert level setting unit that transmits a confirmation request signal to the mobile terminal by the communication control unit when the electric field strength of the alert request signal is measured by the electric field strength measurement unit, and sets an alert level to the outside of the mobile body based on whether or not the communication control unit receives a confirmation response signal transmitted from the mobile terminal in response to receiving the confirmation request signal and the electric field strength of the alert request signal measured by the electric field strength measurement unit; and an alert control unit that issues an alert to the outside of the mobile body based on the alert level set by the alert level setting unit.

In the above-mentioned mobile response device, the notification level setting unit may be configured to transmit the confirmation request signal to the mobile terminal via 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 a first threshold and less than a second threshold, and to set the notification level based on the electric field strength of the notification request signal measured by the electric field strength measuring unit without transmitting the confirmation request signal to the mobile terminal by the communication control unit when the electric field strength of the notification request signal measured by the electric field strength measuring unit is less than the first threshold or greater than the second threshold.

In the above-mentioned mobile response device, the alarm level setting unit may be configured to set the alarm level to a third level when the communication control unit sends the confirmation request signal to the mobile terminal and the confirmation response signal sent from the mobile terminal is not received by the communication control unit, and to set the alarm level to a second level having a lower alarm intensity than the third level when the communication control unit sends the confirmation request signal to the mobile terminal and the communication control unit receives the confirmation response signal sent from the mobile terminal .
Here, the intensity of the notification refers to the level of effectiveness in calling attention to the outside of the moving body. For example, when the notification is made by outputting a sound, the intensity of the notification increases as the sound pressure of the output sound increases.

As a second aspect for achieving the above-mentioned object, there is provided a mobile body response device used in a mobile body, comprising: a communication control unit that performs wireless communication with a mobile terminal; a field strength measuring unit that measures the field strength of an alert request signal transmitted from the mobile terminal when the communication control unit receives the alert request signal; an alert level setting unit that sets an alert level to the outside of the mobile body based on the field strength of the alert request signal; and an alert control unit that issues an alert to the outside of the mobile body at the alert level set by the alert level setting unit, wherein the alert control unit is a mobile body response device that, when the alert request signal is received again from the mobile terminal by the communication control unit within a predetermined time from the time the communication control unit receives the alert request signal by the communication control unit , re-issues the alert with a higher alert strength than the alert made immediately before.

As a third aspect for achieving the above-mentioned object, there is provided a mobile body response device for use in a mobile body, comprising: a communication control unit which performs wireless communication with a mobile terminal; an electric field strength measuring unit which measures the electric field strength of an alarm request signal transmitted from the mobile terminal when the communication control unit receives the alarm request signal; an alarm level setting unit which sets an alarm level to the outside of the mobile body based on the electric field strength of the alarm request signal; an alarm control unit which issues an alarm to the outside of the mobile body based on the alarm level set by the alarm level setting unit; a surrounding image acquisition unit which acquires a captured image of the surroundings of the mobile body using a camera; and a person recognition unit which recognizes a person holding a portable item from the captured image, wherein the alarm level setting unit sets the alarm level lower when a person holding a portable item is recognized by the person recognition unit than when a person holding a portable item is not recognized by the person recognition unit.

The above-mentioned mobile body response device may be configured to include an ambient illuminance recognition unit that recognizes the brightness around the mobile body, and the notification control unit may be configured to execute the notification by turning on a light provided on the mobile body when the illuminance around the mobile body recognized by the ambient illuminance recognition unit is below a predetermined level .

In the mobile response device, the notification control unit may be configured to issue the notification by outputting a 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.

The mobile body response device described above can send notifications from the mobile body in a manner that makes it easy to grasp the position of the mobile body in response to the mobile body's viewfinder operation using a mobile terminal.

FIG. 1 is a configuration diagram of a mobile response device and a vehicle equipped with the mobile response device. FIG. 2 is a flowchart of the response notification process. FIG. 3 is a setting table of the notification levels. FIG. 4 is an explanatory diagram of the electric field strength and the notification level according to the position of the portable key relative to the vehicle.

[1. Configuration of the mobile response device]
The configuration of a mobile object response device 10 of this embodiment will be described with reference to Fig. 1. The mobile object response device 10 may be configured as part of the functions of a vehicle control unit mounted on a vehicle 1, or may be a dedicated device. The vehicle 1 corresponds to a mobile object in this disclosure. The mobile object response device 10 is connected to a communication unit 11, an illuminance sensor 12, a camera 13, a buzzer 14, and lights 15 mounted on the vehicle 1.

The communication unit 11 has the function of performing wireless communication using LF (Low Frequency), RF (Radio Frequency), BLE (Bluetooth Low Energy; Bluetooth is a registered trademark), and UWB (Ultra Wide Band). The communication unit 11 is connected to the LF antenna 11a, RF antenna 11b, BLE antenna 11c, and UWB antenna 11d provided on the vehicle 1, and transmits and receives wireless signals using these antennas 11a to 11d.

Figure 1 shows a situation in which a mobile response device 10 performs wireless communication with a portable key (FOB key) 50 of the vehicle 1 held by a user U of the vehicle 1 via a communication unit 11. The portable key 50 corresponds to a portable terminal in this disclosure, and has a door lock switch 51 for instructing the door of the vehicle 1 to be locked and a door unlock switch 52 for instructing the door to be unlocked.

When the door lock switch 51 is operated, the portable key 50 transmits a door lock command signal including authentication data to the vehicle 1 via RF communication. When the door unlock switch 52 is operated, the portable key 50 transmits a door unlock signal including authentication data to the vehicle 1 via RF communication. When a touch sensor (not shown) provided on the door handle of the vehicle 1 is turned on, the mobile response device 10 performs LF communication and RF communication with the portable key 50 to perform authentication processing of the portable key 50, and unlocks the door of the vehicle 1 if the authentication is OK.

The illuminance sensor 12 detects the illuminance around the vehicle 1 and outputs an illuminance detection signal to the mobile object response device 10. The camera 13 captures the surroundings of the vehicle 1 and outputs the captured image to the mobile object response device 10. The buzzer 14 outputs a predetermined alarm sound to the outside of the vehicle 1. The lights 15 include headlights, small lights, tail lights, brake lights, etc. The lights 15 correspond to the lamps of this disclosure. The operation of the buzzer 14 and the lights 15 is controlled by a control signal output from the mobile object response device 10.

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

The communication control unit 21 controls wireless communication with the portable key 50 by the communication unit 11, and transmits and receives wireless signals to and from the portable key 50. When the field strength measurement unit 22 receives a wireless signal transmitted by RF communication from the portable key 50, it measures the field strength of the received wireless signal using RSSI (Receive Signal Strength Indication) or the like.

The surrounding image acquisition unit 23 acquires an image of the surroundings of the vehicle 1 captured by the camera 13. The person recognition unit 24 recognizes a person holding a portable item from the captured image acquired by the surrounding image acquisition unit 23. The notification level setting unit 25 sets a notification level according to the setting table shown in FIG. 3. The notification control unit 26 issues a notification according to the notification level set by the notification level setting unit 25. The processing by the notification level setting unit 25 and the notification control unit 26 will be described in detail later.

2. Response Notification Processing
The response notification process executed by the mobile-body response device 10 will be described according to the flowchart shown in FIG. 2 with reference to FIGS.

In step S1 of FIG. 2, when the communication control unit 21 receives a door lock signal twice consecutively from the portable key 50 within a predetermined time (e.g., 5 seconds), the notification control unit 26 recognizes the second door lock signal as a notification request signal requesting notification of the position of the vehicle 1, and proceeds to step S2. In step 2, the notification control unit 26 starts a timer to recognize a request for re-notification in step S40, which will be described later. The timer time-out time is set to, for example, about 10 seconds.

In the following step S3, the electric field strength measurement unit 22 measures the electric field strength E of the notification request signal. The following steps S4 to S7, S20 to S22, and S30 are processes performed by the notification level setting unit 25. The notification level setting unit 25 sets the notification level according to the electric field strength E of the notification request signal according to the setting table shown in FIG. 3.

That is, in step S4, the notification level setting unit 25 determines whether the electric field strength E is greater than the first threshold Eth1 and equal to or 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 equal to or less than the second threshold Eth2, the notification level setting unit 25 advances the process to step S5, and the communication control unit 21 transmits a confirmation request signal to the portable key 50.

In the next step S6, the notification level setting unit 25 determines whether the communication control unit 21 has received an acknowledgment response signal transmitted from the portable key 50. If the communication control unit 21 has received an acknowledgment response signal, the notification level setting unit 25 advances the process to step S7 and sets the notification level to the second level. If the communication control unit 21 has not received an acknowledgment response signal, the notification level setting unit 25 advances the process to step S30 and sets the notification level to the third level.

On the other hand, in step S4, when the electric field strength E of the notification request signal is equal to or less than the first threshold Eth1 (E≦Eth1) or is greater than the second threshold Eth2 (Eth2<E), the notification level setting unit 25 proceeds 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 equal to or less than the first threshold Eth1.

When the electric field strength E of the notification request signal is equal to or greater than the first threshold value and equal to or less than 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 equal to or less than 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.

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

Figure 4 illustrates how the level of notification to the outside of the vehicle 1 is switched between four levels, level 1 to level 4, depending on the distance between the vehicle 1 and the portable key 50, based on the electric field strength E of the notification request signal, as described above. In Figure 4, the circle A1 indicates the range in which the electric field strength E is expected to be greater than the second threshold value Erh2 when the vehicle 1 receives the notification request signal transmitted from the portable key 50. The circle A2 indicates the range in which the electric field strength E is expected to be greater than the first threshold value Eth1 (<second threshold value Eth2).

In FIG. 4, C4 indicates a state in which 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. The notification control unit 26 then outputs a notification sound from the buzzer 14 at the fourth level of sound pressure. C3 indicates a state in which the portable key 50 is located within the range of A2 outside A1, toward the outside of A2, and the vehicle 1 has not received an acknowledgement signal. In this case, the notification level setting unit 25 sets the notification level to the third level. The notification control unit 26 then outputs a notification sound from the buzzer 14 at the third level of sound pressure (<fourth level of sound pressure).

C2 indicates a state in which the portable key 50 is located within the range of A2 outside A1, toward the inside of A2, and the vehicle 1 has received an acknowledgment response signal. In this case, the notification level setting unit 25 sets the notification level to the second level. The notification control unit 26 then outputs a notification sound from the buzzer 14 at the second level of sound pressure (< the third level of sound pressure). C1 indicates a state in which the portable key 50 is located within the range of A1, and in this case, the notification level setting unit 25 sets the notification level to the first level. The notification control unit 26 then outputs a notification sound from the buzzer 14 at the first level of sound pressure (< the second level of sound pressure).

In this way, as the portable key 50 approaches the vehicle 1 from C4 → C3 → C2 → C1, the sound pressure of the alarm sound output from the buzzer 14 decreases (the intensity of the alarm decreases). Therefore, for a user U who is trying to find the vehicle 1 by operating the portable key 50 (operating the finder), the difference in sound pressure of the alarm sound makes it easier to identify the location of the vehicle 1.

Returning to the flowchart of FIG. 2, in step S9, the notification control unit 26 determines whether the timer has timed out, and if so, proceeds to step S10 to end the response notification process. On the other hand, if the timer has not timed out, the notification control unit 26 proceeds to step S40 to determine whether a notification request signal has been received from the portable key 50.

Then, if the alarm control unit 26 receives an alarm request signal from the portable key 50, the process proceeds to step S41, and if the alarm request signal is not received from the portable key 50, the process proceeds to step S9. In step S41, the alarm control unit 26 issues an alarm at a higher alarm level than the immediately preceding alarm (alarm in step S8), and proceeds to step S10. For example, if an alarm sound is output from the buzzer 14 at a sound pressure of the second level in step S7, in step S41, an alarm sound is output from the buzzer 14 at a sound pressure higher than the sound pressure of the second level, such as a third level or a fourth level.

3. Other embodiments
In the above embodiment, a vehicle 1 is used as an example of a moving body of the present disclosure, but the moving body of the present disclosure may be a moving body other than a vehicle, such as an aircraft or a ship, as long as it is capable of wireless communication with a mobile terminal.

In the above embodiment, a portable key is exemplified as a portable terminal of the present disclosure, but the portable terminal of this embodiment may be a smartphone, a mobile phone, or a tablet terminal on which a remote control application for the vehicle 1 is installed. In this case, wireless communication between the portable terminal and the vehicle 1 may be performed by BLE communication.

In the above embodiment, the notification control unit 26 notifies by outputting a notification sound from the buzzer 14, but the notification may also be made by turning on or blinking the lights 15. When making a notification by turning on or blinking the lights 15, the notification level can be changed by changing the number of lights 15 that are turned on or the number of times they blink.

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 issue a notification by turning on or flashing the lights 15.

In the above embodiment, when the person recognition unit 24 recognizes a person holding a portable item from an image of the vicinity of the vehicle 1, the intensity of the notification by the notification control unit 26 may be lowered compared to when a person holding a portable item is not recognized. This makes it possible to reduce the sound pressure of the notification sound from the buzzer 14 when a user U holding a portable key is near the vehicle 1, thereby preventing the user U from feeling that the notification sound is excessive.

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 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 more times the notification sound is output, thereby increasing the intensity of the notification.

Note that FIG. 1 is a schematic diagram showing the configuration of the mobile response device 10 divided according to the main processing content in order to facilitate understanding of the present invention, and the mobile response device 10 may be configured with other divisions. Furthermore, the processing of each component may be executed by one hardware unit or by multiple hardware units. Furthermore, the processing by each component shown in FIG. 2 may be executed by one program or by multiple programs.

4. Configurations supported by the above embodiment
The above embodiment is a specific example of the following configuration.

(Configuration 1) A mobile body response device used in a mobile body, comprising: a communication control unit that performs wireless communication with a mobile terminal; a field strength measuring unit that measures the field strength of an alert request signal transmitted from the mobile terminal when the alert request signal is received by the communication control unit; an alert level setting unit that sets an alert level to the outside of the mobile body based on the radio wave strength of the alert request signal; and an alert control unit that issues an alert to the outside of the mobile body based on the alert level set by the alert level setting unit.
According to the mobile body response device of configuration 1, when a notification request signal transmitted from a mobile terminal according to a mobile terminal of a user of the mobile body is received by the mobile body, a notification is made to the outside of the mobile body according to a notification level based on the electric field strength of the notification request signal that changes according to the distance between the mobile body and the mobile terminal. This makes it possible to make a notification from the mobile body in a manner that makes it easy to grasp the position of the mobile body according to the finder operation of the mobile body by the mobile terminal.

(Configuration 2) A mobile response device as described in Configuration 1, 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 lower than a first threshold value.
According to the mobile body response device of configuration 2, when the electric field strength of the notification request signal is below a first threshold, a notification is made at a first level, thereby making the user operating the mobile terminal aware that the distance between the mobile terminal and the mobile body is relatively long.

(Configuration 3) The notification level setting 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, sends a confirmation request signal to the mobile terminal via the communication control unit, and when the communication control unit does not receive an acknowledgement response signal in response to the confirmation request signal from the mobile terminal, sets the notification level to a second level having a lower notification strength than the first level.
According to the mobile body response device of configuration 3, when the electric field strength of the notification request signal is greater than the first threshold value and equal to or less than the second threshold value, by checking whether the confirmation request signal and the confirmation response signal can be transmitted and received between the mobile body and the mobile terminal, it is possible to recognize in more detail how far the mobile body and the mobile terminal are apart from each other. Then, 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 making it possible to notify the user who operates the mobile terminal that the distance between the mobile terminal and the mobile body is short.

(Configuration 4) A mobile response device as described in Configuration 3, wherein the notification level setting unit sets the notification level to a third level having a lower notification intensity than the second level when the communication control unit receives the confirmation response signal in response to the confirmation request signal from the mobile terminal.
According to the mobile object response device of configuration 4, when the notification level setting unit receives an acknowledgement signal from the mobile terminal in response to the transmission of the acknowledgement request signal, the notification level setting unit sets the notification level to a third level lower than the second level. This makes it possible to notify the user who operates the mobile terminal that the distance between the mobile object and the mobile terminal is shorter than the distance corresponding to the second level.

(Configuration 5) A mobile response device as described in Configuration 4, wherein the notification level setting unit sets the notification level to a fourth level having a lower notification strength than the third level when the electric field strength of the notification request signal measured by the electric field strength measuring unit is greater than the second threshold.
According to the mobile body response device of configuration 5, when the electric field strength of the notification request signal is greater than the second threshold value, the notification level is set to a fourth level lower than the third level, thereby notifying a user operating the mobile terminal that the distance between the mobile body and the mobile terminal is shorter than the distance corresponding to the third level.

(Configuration 6) A mobile response device described in any one of configurations 1 to 5, wherein when the notification control unit receives the notification request signal again from the mobile terminal by the communication control unit within a predetermined time from the time the notification request signal is received by the communication control unit, the notification control unit re-executes the notification with a stronger notification intensity than the immediately preceding notification.
According to the mobile object response device of configuration 6, the user of the mobile terminal can increase the notification level and re-execute the notification from the mobile object by continuing to operate the mobile terminal. This makes it easier for the user to check the location of the mobile object.

(Configuration 7) A mobile body response device described in any one of configurations 1 to 6, which is provided with an ambient illuminance recognition unit that recognizes the brightness around the mobile body, and the notification control unit executes the notification by turning on a light provided on the mobile body when the illuminance around the mobile body recognized by the ambient illuminance recognition unit is below a predetermined level.
According to the mobile body response device of configuration 7, when the illuminance around the mobile body is low, such as at night, a notification that is easily visible to a user carrying a mobile terminal can be made by turning on the lamp.

(Configuration 8) A mobile body response device described in any one of configurations 1 to 7, comprising a surrounding image acquisition unit that acquires a captured image of the surroundings of the mobile body by a camera, and a person recognition unit that recognizes a person holding a portable item from the captured image, wherein the alarm level setting unit sets the alarm level lower when a person holding a portable item is recognized by the person recognition unit than when a person holding a portable item is not recognized by the person recognition unit.
According to the mobile object response device of configuration 8, when it is inferred from an image captured by the camera that a user carrying a mobile terminal is near a mobile object, the notification level can be lowered to issue a notification.

(Configuration 9) A mobile response device described in any one of configurations 1 to 8, in which the notification control unit makes the notification by outputting a sound, and changes the notification level of the notification depending on the sound pressure of the output sound or the number of times the sound is output.
According to the mobile object response device of configuration 9, when an alert is made by outputting sound, the difference in sound pressure or the number of times the sound is output can allow a user carrying a mobile terminal to recognize how far away the mobile terminal is from the mobile object.

1...vehicle (mobile object), 10...mobile object response device, 11...communication unit, 12...illuminance sensor, 13...camera, 14...buzzer, 15...lights, 20...processor, 21...communication control unit, 22...electric field strength measurement unit, 23...surrounding image acquisition unit, 24...person recognition unit, 25...alarm level setting unit, 26...alarm control unit, 40...memory, 41...control program, 50...portable key (portable terminal), 51...door lock switch, 52...door unlock switch, U...user.

Claims (7)

A mobile response device for use in a mobile object, comprising:
A communication control unit that performs wireless communication with a mobile terminal;
a field strength measurement unit that measures a field strength of a notification request signal transmitted from the mobile terminal when the notification request signal is received by the communication control unit;
a notification level setting unit that transmits a confirmation request signal to the mobile terminal by the communication control unit when the electric field strength of the notification request signal is measured by the electric field strength measurement unit, and sets a notification level to the outside of the mobile body based on whether or not the communication control unit receives an acknowledgement signal transmitted from the mobile terminal in response to the reception of the confirmation request signal and on the electric field strength of the notification request signal measured by the electric field strength measurement unit;
a notification control unit that notifies an outside of the moving object based on the notification level set by the notification level setting unit;
A mobile response device comprising: The notification level setting unit is
when the electric field strength of the notification request signal measured by the electric field strength measurement unit is greater than a first threshold and equal to or less than a second threshold, transmitting the confirmation request signal to the mobile terminal by the communication control unit;
A mobile response device as described in claim 1, wherein when the electric field strength of the notification request signal measured by the electric field strength measuring unit is equal to or less than the first threshold or greater than the second threshold, the communication control unit does not transmit the confirmation request signal to the mobile terminal, and the notification level is set based on the electric field strength of the notification request signal measured by the electric field strength measuring unit . The notification level setting unit is
when the communication control unit transmits the confirmation request signal to the portable terminal and the communication control unit does not receive the confirmation response signal transmitted from the portable terminal, the notification level is set to a third level;
When the communication control unit transmits the confirmation request signal to the portable terminal, if the communication control unit receives the confirmation response signal transmitted from the portable terminal, the notification level is set to a second level having a lower notification intensity than the third level.
3. A mobile response device according to claim 1 or 2. A mobile response device for use in a mobile object, comprising:
A communication control unit that performs wireless communication with a mobile terminal;
a field strength measurement unit that measures a field strength of a notification request signal transmitted from the mobile terminal when the notification request signal is received by the communication control unit;
a notification level setting unit that sets a notification level to an outside of the moving body based on an electric field strength of the notification request signal;
a notification control unit that notifies an outside of the moving object based on the notification level set by the notification level setting unit;
Equipped with
When the notification control unit receives the notification request signal again from the mobile terminal by the communication control unit within a predetermined time from the time when the notification request signal is received by the communication control unit, the notification control unit executes the notification again with a higher intensity than the immediately preceding notification.
Mobile response device. A mobile response device for use in a mobile object, comprising:
A communication control unit that performs wireless communication with a mobile terminal;
a field strength measurement unit that measures a field strength of a notification request signal transmitted from the mobile terminal when the notification request signal is received by the communication control unit;
a notification level setting unit that sets a notification level to an outside of the moving body based on an electric field strength of the notification request signal;
a notification control unit that notifies an outside of the moving object based on the notification level set by the notification level setting unit;
a surrounding image acquisition unit that acquires a captured image of the surroundings of the moving object by a camera;
a person recognition unit that recognizes a person holding a portable item from the captured image;
Equipped with
The notification level setting unit sets the notification level lower when the person recognizing unit recognizes a person holding a portable item in his/her hand than when the person recognizing unit does not recognize a person holding a portable item in his/her hand.
Mobile response device. An ambient illuminance recognition unit that recognizes the brightness of the surroundings of the moving body,
The mobile body response device according to any one of claims 1 to 5, wherein the notification control unit executes the notification by turning on a light provided on the mobile body when the illuminance around the mobile body recognized by the surrounding illuminance recognition unit is below a predetermined level. The mobile response device according to claim 1 , wherein the notification control unit performs the notification by outputting a sound, and changes a 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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