Patent Publication Number: US-2023138577-A1

Title: Notification device and method for moving body passengers

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The present application claims priority under 35 U.S.C. § 119 to Japanese Patent Application No. 2021-180082, filed Nov. 4, 2021, the contents of which application are incorporated herein by reference in their entirety. 
     BACKGROUND 
     Technical Field 
     The present disclosure relates to a technique for notifying passengers on a moving body. 
     Background Art 
     Patent Literature 1 discloses a technology for, in an information processing device mounted on a vehicle, outputting output information to a mobile terminal of an identified passenger. In this technology, a mobile terminal to be an output destination of output information is identified from among a plurality of mobile terminals that are in a state of connection with the information processing device. 
     LIST OF RELATED ART 
     Patent Literature 1: JP 2018-105745 A 
     SUMMARY 
     When a plurality of passengers are on board a moving body that performs automated driving, it is assumed that, according to a travel state of the moving body, mobile terminals or the like of identified passengers are notified of notification content about safety and transportation of the passengers. However, when the mobile terminals of the passengers are notified of all notification contents, some passengers may feel annoyed. Further, it may not be possible to get the passengers&#39; attention to content with an especially high degree of importance among notification contents about safety. Therefore, improvement for appropriately outputting notification content according to a situation is desirable. 
     One of objects of the present disclosure is to provide a technology capable of controlling output of notification content to an output destination device according to a degree of importance of the notification content and information about passengers. 
     A first point of view relates to a device for notification to a moving body passenger, the device being mounted on a moving body and notifying a passenger on the moving body. 
     The device for notification to a moving body passenger includes an information processing device configured to set a notification content to the passenger. The device for notification to a moving body passenger includes a moving-body-mounted output device configured to output the notification content. The device for notification to a moving body passenger includes a communication device configured to transmit the notification content to a device carried by the passenger. 
     The information processing device includes a storage device in which travel information about the moving body, passenger information about the passenger and information about a notification content list including the notification content set in association with the travel information and the passenger information, and a degree of importance of the notification content are stored. The information processing device includes a processor configured to perform an output control process for controlling output of the notification content to the moving-body-mounted output device and the communication device. 
     In the output control process, the processor identifies a control target content indicating the notification content to be targeted by the output control, based on the travel information and the information about the notification content list or based on the travel information, the passenger information and the information about the notification content list. 
     In the output control process, the processor determines whether or not a degree of importance of the control target content is at or above a predetermined level. 
     In the output control process, the processor outputs the control target content to the moving-body-mounted output device if it is determined that the degree of importance of the control target content is at or above the predetermined level. 
     In addition to the first point of view, a second point of view further has the following characteristic. 
     In the output control process, if it is determined that the degree of importance of the control target content is not at or above the predetermined level, the processor outputs the control target content to the moving-body-mounted output device or the communication device or not output the control target content. 
     In addition to the second point of view, a third point of view further has the following characteristics. 
     The passenger information includes notification request information about the notification content, which is set by the passenger. 
     In the output control process, if it is determined that the degree of importance of the control target content is not at or above the predetermined level, the processor determines whether or not an unwanted notification is set for the control target content, based on the notification request information. 
     In the output control process, the processor outputs the control target content to the communication device if it is determined that the unwanted notification is not set. 
     Whereas, in the output control process, the processor does not output the control target content if it is determined that the unwanted notification is set. 
     In addition to the third point of view, a fourth point of view further has the following characteristics. 
     The notification request information further includes information about an individual level set by the passenger to notify, from a plurality of control target contents, the control target content requested by the passenger. 
     In the output control process, if it is determined that the unwanted notification is not set, the processor determines whether or not a degree of importance of the control target content is at or above an individual level. 
     In the output control process, if it is determined that the unwanted notification is not set, the processor outputs the control target content to the communication device if it is determined that the degree of importance of the control target content is at or above the individual level. 
     In addition to the second point of view, a fifth point of view further has the following characteristics. 
     The passenger information includes connection state information about a connection state between the device carried by the passenger and the communication device. 
     In the output control process, if it is determined that the degree of importance of the control target content is not at or above the predetermined level, the processor determines whether or not the connection state of the device is a cutoff state, based on the connection state information. 
     In the output control process, the processor outputs the control target content to the moving-body-mounted output device if it is determined that the connection state of the device is the cutoff state. 
     In addition to the first point of view, a sixth point of view further has the following characteristic. 
     The passenger information further includes sensor-obtained information that is information about a position and a posture of the passenger obtained from a sensor included in the moving body. 
     A seventh point of view relates to a device for notification to a moving body passenger, the device being mounted on a moving body and notifying a passenger on the moving body. 
     The device for notification to a moving body passenger includes an information processing device configured to set a notification content to the passenger. The device for notification to a moving body passenger includes a moving-body-mounted output device configured to output the notification content. The device for notification to a moving body passenger includes a communication device configured to transmit the notification content to a device carried by the passenger. 
     The information processing device includes a storage device in which travel information about the moving body, passenger information about the passenger and information about a notification content list that includes the notification content set in association with the travel information and the passenger information, and a degree of importance of the notification content. The information processing device includes a processor configured to an output control process for controlling output of the notification content to the moving-body-mounted output device and the communication device. 
     In the output control process, the processor identifies a control target content indicating the notification content to be targeted by the output control, based on the travel information and the information about the notification content list or based on the travel information, the passenger information and the information about the notification content list. 
     In the output control process, the processor determines whether or not a degree of importance of the control target content is below a predetermined level. 
     In the output control process, the processor outputs the control target content to the moving-body-mounted output device or the communication device or not output the control target content if it is determined that the degree of importance of the control target content is below the predetermined level. 
     In addition to the seventh point of view, an eighth point of view further has the following characteristic. 
     The passenger information includes notification request information about the notification content, which is set by the passenger. 
     In the output control process, if it is determined that the degree of importance of the control target content is below the predetermined level, the processor determines whether or not an unwanted notification is set for the control target content, based on the notification request information. 
     In the output control process, the processor outputs the control target content to the communication device if it is determined that the unwanted notification is not set. 
     Whereas, in the output control process, the processor does not output the control target content if it is determined that the unwanted notification is set. 
     In addition to the eighth point of view, a ninth point of view further has the following characteristics. 
     The notification request information further includes information about an individual level set by the passenger to notify, from a plurality of control target contents, the control target content requested by the passenger. 
     In the output control process, if it is determined that the unwanted notification is not set, the processor determines whether or not a degree of importance of the control target content is at or above an individual level. 
     In the output control process, if it is determined that the unwanted notification is not set, the processor outputs the control target content to the communication device if it is determined that the degree of importance of the control target content is at or above the individual level. 
     In addition to the seventh point of view, a tenth point of view further has the following characteristics. 
     The passenger information includes connection state information about a connection state between the device carried by the passenger and the communication device. 
     In the output control process, if it is determined that the degree of importance of the control target content is below the predetermined level, the processor determines whether or not the connection state of the device is a cutoff state, based on the connection state information. 
     In the output control process, the processor outputs the control target content to the moving-body-mounted output device if it is determined that the connection state of the device is the cutoff state. 
     An eleventh point of view relates to a method for notification to a moving body passenger, the method including the following steps. A first step involves setting a notification content to the passenger. A second step involves outputting a notification content. A third step involves transmitting the notification content to a device carried by the passenger. A fourth step involves obtaining travel information about the moving body, passenger information about the passengers and information about a notification content list including the notification content set in association with the travel information and the passenger information, and a degree of importance of the notification content. A fifth step involves performing an output control process for controlling output of the notification content to the moving-body-mounted output device and the communication device. 
     The output control process includes the following steps. A first step involves identifying a control target content indicating the notification content to be targeted by the output control, based on the travel information and the information about the notification content list or based on the travel information, the passenger information and the information about the notification content list. A second step involves determining whether or not a degree of importance of the control target content is at or above a predetermined level. A third step involves outputting the control target content to the moving-body-mounted output device if it is determined that the degree of importance of the control target content is at or above the predetermined level. 
     A twelfth point of view relates to a method for notification to a moving body passenger, the method including the following steps. A first step involves setting notification contents to the passenger. A second step involves outputting a notification content. 
     A third step involves transmitting the notification content to a device carried by the passenger. A fourth step involves obtaining travel information about the moving body, passenger information about the passengers and information about a notification content list that includes the notification contents set in association with the travel information and the passenger information, and a degree of importance of the notification content. A fifth step involves performing an output control process for controlling output of the notification content to the moving-body-mounted output device and the communication device. 
     The output control process includes the following steps. A first step involves identifying a control target content indicating the notification content to be targeted by the output control, based on the travel information and the information about the notification content list or based on the travel information, the passenger information and the information about the notification content list. A second step involves determining whether or not a degree of importance of the control target content is below a predetermined level. A third step involves outputting the control target content to the moving-body-mounted output device or the communication device or not outputting the control target content if it is determined that the degree of importance of the control target content is below the predetermined level. 
     According to the first point of view, when a degree of importance of a control target content indicating the notification content targeted by the output control is at or above a predetermined level, the control target content can be outputted to the moving-body-mounted output device. Thereby, it becomes possible to control output of a notification content to the output destination device according to a degree of importance of the notification content and information about passengers. 
     According to the second point of view, when a degree of importance of a control target content is not at or above the predetermined level, it is possible to output the control target content to the moving-body-mounted output device or the communication device or not to output the control target content, by using the passenger information. Thereby, it becomes possible to control output of a notification content to the output destination device according to a degree of importance of the notification content and information about passengers. 
     According to the third point of view, when a degree of importance of a control target content is not at or above the predetermined level, it is possible to output the control target content to the communication device or not to output the control target content, by using the notification request information included in each piece of passenger information. Thereby, it becomes possible to control output of a notification content to the output destination device according to a degree of importance of the notification content and information about passengers. 
     According to the fourth point of view, even when degrees of importance of control target contents are not at or above the predetermined level, it is further possible to notify, among control target contents that passengers who require notification of control target contents are to be notified of, only control target contents desired by the passengers, by using the individual level information in the notification request information included in the passenger information. Thereby, it becomes possible to control output of a notification content to the output destination device according to a degree of importance of the notification content and information about passengers. 
     According to the fifth point of view, when a degree of importance of a control target content is not at or above the predetermined level, it is possible to notify only passengers who request notification of the control target content, by using the connection state information included in the passenger information. Thereby, it becomes possible to control output of a notification content to the output destination device according to a degree of importance of the notification content and information about passengers. 
     According to the sixth point of view, it becomes possible to decide a notification content to be notified, for each passenger, by using the sensor-obtained information included in the passenger information. 
     According to the seventh point of view, the same effect as the second point of view can be obtained. 
     According to the eighth point of view, the same effect as the third point of view can be obtained. 
     According to the ninth point of view, the same effect as the fourth point of view can be obtained. 
     According to the tenth point of view, the same effect as the fifth point of view can be obtained. 
     According to the eleventh point of view, the same effect as the first point of view can be obtained. 
     According to the twelfth point of view, the same effect as the second and seventh points of view can be obtained. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a block diagram showing a configuration example of a device for notification to moving body passengers according to a first embodiment of the present disclosure; 
         FIG.  2    is a block diagram showing a function example of the device for notification to moving body passengers according to the first embodiment of the present disclosure; 
         FIG.  3    is a flowchart showing an example of a process of a notification content determination processing unit in an output control processing unit of the device for notification to moving body passengers according to the first embodiment of the present disclosure; 
         FIG.  4    is a flowchart showing an example of a process of an output destination device determination processing unit in the output control processing unit of the device for notification to moving body passengers according to the first embodiment of the present disclosure; 
         FIG.  5    is a diagram showing a result example in a case where a degree of importance of a notification content at the output control processing unit of the device for notification to moving body passengers according to the first embodiment of the present disclosure is at or above a predetermined level; 
         FIG.  6    is a diagram showing a result example in a case where a degree of importance of a notification content at the output control processing unit of the device for notification to moving body passengers according to the first embodiment of the present disclosure is not at or above the predetermined level; 
         FIG.  7    is a block diagram showing a configuration example of a device for notification to moving body passengers according to a second embodiment of the present disclosure; and 
         FIG.  8    is a flowchart showing an example of a process of an output destination device determination processing unit in an output control processing unit of the device for notification to moving body passengers according to the second embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     A Notification device and method for moving body passengers according to each embodiment of the present disclosure will be described with reference to accompanying drawings. 
     1. First Embodiment 
     1-1. Configuration Example 
     A Notification device for moving body passengers according to the present embodiment is a device for, in a moving body that performs automated driving with passengers on board, determining notification contents that the passengers are to be notified of and determine an output destination device of the notification contents at the time traveling of the moving body. The Notification device for moving body passengers according to the present embodiment is mounted on a moving body.  FIG.  1    is a block diagram showing a configuration example of a Notification device for moving body passengers  10  according to the present embodiment. The Notification device for moving body passengers  10  includes an information processing device  20 , a moving-body-mounted output device  30  and a communication device  40 . 
     The information processing device  20  performs various kinds of information processing. The information processing device  20  includes one or more processors  100  (hereinafter referred to simply as the processor  100 ) and one or more storage devices  110  (hereinafter referred to simply as the storage device  110 ). The processor  100  executes various kinds of processes. As the processor  100 , for example, an ECU or a CPU are exemplified. The storage device  110  stores data of travel information  120  about the moving body, data of passenger information  130  about passengers and data of a notification content list  140 . As the storage device  110 , a volatile memory, a non-volatile memory, an HDD or an SSD is exemplified. By the processor  100  executing a program for notification to moving body passengers, which is a computer program, functions of the information processing device  20  are realized. The program for notification to moving body passengers is stored in the storage device  110 . The program for notification to moving body passengers may be recorded in a computer-readable recording medium. The program for notification to moving body passengers may be provided via a network. 
     The travel information  120  includes information about a driving route of the moving body. The travel information  120  also includes information about a target trajectory of the moving body generated based on the driving route. The target trajectory is a trajectory on which the moving body should travel during automated driving, and a travel plan corresponding to the target trajectory is generated on the target trajectory. The target trajectory may be modified based on information obtained from a sensor (camera, radar, LiDAR or the like) mounted on the moving body. The travel information  120  also includes information showing a travel state obtained by sensors (speed sensor, acceleration sensor, steering angle sensor, GPS sensor and the like) mounted on the moving body. 
     As the travel information  120 , estimated time until arrival at a stop (for example, a bus stop) on the driving route is exemplified. The estimated time is calculated, for example, based on the driving route. The travel information  120  also includes information calculated based on the target trajectory and the travel plan. Specifically, estimated time until start of acceleration/deceleration, estimated acceleration/deceleration duration, current acceleration/deceleration, estimated future acceleration/deceleration, estimated time until complete stop, estimated stop duration, estimated time until start of steering, estimated steering duration, current steering speed, estimated future steering speed, current lateral G, estimated future lateral G, estimated lateral G duration, estimated time until start of lane change, estimated time until completion of lane change, estimated lane change operation duration, estimated time until start of avoidance operation and the like are exemplified. The travel information  120  also includes information calculated from topographic information recognized by a camera, an LiDAR and the like. For example, rolling strength and estimated time of occurrence of rolling are information calculated from topographic information. 
     The passenger information  130  is information about the passengers obtained by a device carried by the passengers, and information about the passengers obtained by sensors (cameras, seating sensors, motion sensors and the like) mounted inside the moving body. 
     The passenger information  130  includes notification request information, connection state information and sensor-obtained information. The notification request information is setting information about whether notification contents are to be notified or not, on each of the devices carried by the passengers. The connection state information is information about a connection state between each of the devices carried by the passengers and the communication device  40 . The sensor-obtained information is information about positions and postures of the passengers obtained from the sensors (cameras, seating sensors, motion sensors and the like) mounted inside the moving body. The passenger information  130  includes information such as attribute information (age, gender, absence/presence of disability and the like) set for the devices carried by the passengers and use information (boarding place, destination, with/without luggage and the like). 
     As the connection state information included in the passenger information  130 , presence/absence of connected passengers&#39; devices (mobile phone, smartphone, tablet PC, notebook PC, wireless phone, smartwatch, wearable display and the like) and identification information about the connected passengers&#39; devices are exemplified. 
     As the sensor-obtained information included in the passenger information  130 , estimated age information, boarding position information and boarding posture information are included. As the boarding position information, area information (front, center, back and the like), seat information (front facing seat, back facing seat, sideways seat, seat on tire and the like) and the like are exemplified. As the boarding posture information, standing, sitting, walking, squatting, holding on to railing, holding on to strap, not holding on to strap, facing forward, facing sideways, facing backward and the like are exemplified. 
     Each of notification contents set in association with the travel information  120  and the passenger information  130  is configured with content aimed at travel safety, observance of the driving schedule of the moving body, arrival of passengers at destinations on time, and the like. A level of the degree of importance is set according to each configured notification content. 
     The notification content list  140  is information that includes notification contents set in association with the travel information  120  and the passenger information  130 , and degrees of importance of the notification contents. 
     As the notification contents, notice of arrival at bus stop (“Will arrive at Area A” and the like), notice and warning of acceleration/deceleration (“Will accelerate, please be careful,” “Will decelerate, please be careful,” and the like), notice and warning steering (“Will turn right, please be careful,” and the like), notice of stop (“Will stop,” “Will stop about three minutes at the next bus stop,” and the like), notice and warning of departure (“Will depart, please be careful,” and the like), notice and warning of lane change (“Will change the lane, please be careful,” and the like), notice and warning of lateral G (“Vehicle will greatly shake left and right, please be careful,” and the like), notice and warning of vertical shake (“Vehicle will shake, please be careful,” and the like), explanation of reason for avoidance operation (“Made emergency stop because of sudden stop of the vehicle ahead,” and the like), explanation of reason for change of travel route (“Will change the travel route because of traffic jam ahead” and the like), and urging passengers to sit down (“Please sit down for your safety,” and the like) and the like are exemplified. 
     The moving-body-mounted output device  30  is an output device for notifying all the passengers of a notification content. As the moving-body-mounted output device  30 , in-vehicle signage, a display, a speaker, lamp or the like is exemplified. 
     The communication device  40  is a communication interface that performs communication with the devices carried by the passengers to notify the devices of a notification content. The communication device  40  performs a process for assigning data of a notification content to a communication line in order to transmit the data of the notification content to the devices carried by the passengers. As the communication device  40 , a DCM (data communication module), a WiFi router or the like is exemplified. 
     1-2. Detail of Information Processing 
     The information processing device  20  executes a process for performing control to output a notification content to the moving-body-mounted output device  30  or the communication device  40  or not to output a notification content, based on the travel information  120 , the passenger information  130  and the notification content list  140 . Information processing according to the present embodiment includes characteristic processes as described below. 
       FIG.  2    is a block diagram showing an example of functions related to the information processing according to the present embodiment. The information processing device  20  is provided with an information input unit  300 , an output control processing unit  310  and a processing result output unit  340  as functional blocks. These functional blocks are realized by the processor  100  executing the program for notification to moving body passengers. 
     The information input unit  300  performs a process for inputting the travel information  120 , the passenger information  130  and the notification content list  140  recorded in the storage device  110 . After that, the inputted travel information  120 , passenger information  130  and notification content list  140  are outputted to the output control processing unit  310 . 
     The output control processing unit  310  is further provided with a notification content determination processing unit  320  and an output destination device determination processing unit  330 . The output control processing unit  310  makes a determination about a notification content that passengers are to be notified of, based on the inputted travel information  120 , passenger information  130  and notification content list  140 , and makes a determination about an output destination device to which the determined notification content is to be outputted. Details of each of the notification content determination processing unit  320  and the output destination device determination processing unit  330  will be described later. 
     The notification content determination processing unit  320  determines whether the inputted travel information  120  and passenger information  130  are included in the notification content list  140  or not. If it is determined that the inputted travel information  120  and passenger information  130  are included in the notification content list  140 , a notification content to be targeted by output control (hereinafter referred to as “a control target content”) and the degree of importance thereof are identified. The identified control target content and degree of importance thereof are generated as information decided to be notified, which the output destination device is to be notified of Details of the process of the notification content determination processing unit  320  will be described later. 
     The output destination device determination processing unit  330  determines whether or not the degree of importance of the control target content included in the information decided to be notified, which has been generated by the notification content determination processing unit  320 , is at or above a predetermined level, and, according to a result of the determination, determines the output destination device of the control target content. Details of the process of the output destination device determination processing unit  330  will be described later. 
     Based on a result of the determination about the output destination device of the control target content determined by the output control processing unit  310 , the processing result output unit  340  makes a setting for outputting the control target content to the moving-body-mounted output device  30  or the communication device  40 . 
       FIG.  3    is a flowchart showing an example of the process of the notification content determination processing unit  320 . 
     At step S 100 , the notification content determination processing unit  320  determines whether or not the travel information  120 , or the travel information  120  and the passenger information  130  are included in the notification content list  140 . 
     If it is determined that the travel information  120 , or the travel information  120  and the passenger information  130  are included in the notification content list  140  (step S 100 ; Yes), the process proceeds to step S 110 . Otherwise (step S 100 ; No), the process proceeds to step S 120 . 
     At step S 110 , the notification content determination processing unit  320  generates a control target content and the degree of importance thereof, as information decided to be notified. 
     At step S 120 , the notification content determination processing unit  320  generates information decided to be notified, which shows that there is neither a control target content nor the degree of importance thereof. 
     At step S 130 , the notification content determination processing unit  320  outputs the information decided to be notified, which has been generated. 
       FIG.  4    is a flowchart showing an example of the process of the output destination device determination processing unit  330 . 
     At step S 200 , the output destination device determination processing unit  330  determines whether or not the degree of importance of the control target content included in the information decided to be notified, which has been generated by the notification content determination processing unit  320 , is at or above the predetermined level. 
     If it is determined that the degree of importance of the control target content included in the information decided to be notified is at or above the predetermined level (step S 200 ; Yes), the process proceeds to step S 210 . Otherwise (step S 200 ; No), the process proceeds to step S 220 . 
     At step S 210 , the output destination device determination processing unit  330  sets the moving-body-mounted output device  30  as the output destination device that is to be notified of the control target content. 
     At step S 220 , the output destination device determination processing unit  330  determines whether or not there is such a device carried by a passenger that the state of connection with the communication device  40  is a cutoff state in the connection state information included in the passenger information  130 . 
     If it is determined that there is such a device carried by a passenger that the state of connection with the communication device  40  is a cutoff state (step S 220 ; Yes), the process proceeds to step S 230 . Otherwise (step S 220 ; No), the process proceeds to step S 240 . 
     At step S 230 , the output destination device determination processing unit  330  sets the moving-body-mounted output device  30  as the output destination device that is to be notified of the control target content. 
     At step S 240 , the output destination device determination processing unit  330  determines whether or not the notification request information included in the passenger information  130  indicates an unwanted notification. 
     If it is determined that the unwanted notification is not set (step S 240 ; No), the process proceeds to step S 250 . Otherwise (step S 240 ; Yes), the process proceeds to step S 260 . 
     At step S 250 , the output destination device determination processing unit  330  sets the communication device  40  as the output destination device that is to be notified of the control target content. 
     At step S 260 , the output destination device determination processing unit  330  sets “none” for the output destination device that is to be notified of the control target content. 
     At step S 270 , the output destination device determination processing unit  330  outputs information about the set output destination device. 
       FIG.  5    is a diagram showing an example of a result of the output control processing unit  310 . Specifically, when it is determined in the information processing device  20  that the degree of importance of a control target content is at or above the predetermined level, the moving-body-mounted output device  30  is set as the output destination device of the control target content, and the passengers are notified of the control target content via the moving-body-mounted output device  30 . 
       FIG.  6    is a diagram showing examples of a result of the output control processing unit  310 . Here, three examples of, when it is determined by the information processing device  20  that the degree of importance of a control target content is not at or above the predetermined level, notifying the control target content based on the passenger information  130  will be given. Specifically, a first example is a case where there is such a device carried by a passenger that the state of connection with the communication device  40  is a cutoff state in the connection state information included in the passenger information  130 . In this case, the moving-body-mounted output device  30  is set as the output destination device of the control target content, and the passengers are notified of the control target content via the moving-body-mounted output device  30 . 
     A second example is a case where there is no such a device carried by a passenger that the state of connection with the communication device  40  is a cutoff state, and there are devices for which a setting of being notified of control target contents is made in the notification request information in the passenger information  130 . In this case, the communication device  40  is set as the output destination device of the control target content, and the devices for which the setting of being notified is made are notified of the control target content via the communication device  40 . On the other hand, for devices for which the unwanted notification of control target contents is set in the notification request information in the passenger information  130 , the control target content is not notified. 
     A third example is a case where, there is no such a device carried by a passenger that the state of connection with the communication device  40  is a cutoff state, and there is no device for which the setting of being notified of control target contents is made in the notification request information in the passenger information  130 . In this case, a control target content is set for neither the moving-body-mounted output device  30  nor the communication device  40  as the output destination device, and the passengers are not notified of the control target content. 
     An example other than the result examples shown in  FIG.  6    will be given. Specifically, it is a case where the degree of importance of the control target content of the first example is not at or above the predetermined level, and there is such a device carried by a passenger that the state of connection with the communication device  40  is a cutoff state. In this case, the output destination device of the control target content is the moving-body-mounted output device  30 , but it is assumed that, among the passengers, a passenger who has set the unwanted notification is also included. Therefore, when a plurality of moving-body-mounted output devices  30 , each of which can make a notification for a predetermined partial range, are installed to make a notification for a whole range, a setting of outputting control target contents may not be made for a moving-body-mounted output device  30  for a predetermined partial range where there are only passengers who have set the unwanted notification. 
     Furthermore, an example other than the result examples shown in  FIG.  6    will be given. Specifically, the same as the second example, it is the case where, there is no such a device carried by a passenger that the state of connection with the communication device  40  is a cutoff state, and there are devices for which the setting of being notified of control target contents is made in the notification request information in the passenger information  130 . In this case, it is assumed that control target contents that the devices are notified of differ according to the devices. Here, control target contents for each device is set in the communication device  40 , and each corresponding device is notified of a set control target contents via the communication device  40 . As a method for deciding a control target content for each device, the information about positions and postures of the passengers in the sensor-obtained information in the passenger information  130 , and the like may be used. 
     1-3. Effects 
     It is possible to, if the degree of importance of a control target content showing notification content targeted by output control is at or above a predetermined level, notify passengers of the control target content via a moving-body-mounted output device irrespective of types of devices carried by the passengers. On the other hand, when the degree of importance of the control target content is not at or above the predetermined level, passengers who do not require notification are not notified of the control target content, and passengers who require notification are notified of the control target content, in an environment where there is no such a device carried by a passenger that the state of connection with a communication device is a cutoff state. Therefore, in this case, it is possible to notify only the passengers who requests notification, of the control target content. Thus, according to the present disclosure, it becomes possible to control output of a notification content to an output destination device according to the degree of importance of the notification content and information about the passengers. 
     2. Second Embodiment 
     A second embodiment is different from the first embodiment in the configuration example and the details of information processing. Description overlapping with the description of the first embodiment will be appropriately omitted. 
     In the second embodiment, attention will be paid to a scene of, in the case where degrees of importance of control target contents are not at or above the predetermined level, notifying, among control target contents that passengers who require notification of control target contents are to be notified of, only control target contents requested by the passengers based on the passenger information. It is though that, among the passengers who require notification, passengers who request only notification of necessary control target contents are included. Therefore, in the second embodiment, control target contents requested by passengers are notified based on the passenger information. 
       FIG.  7    is a block diagram showing details of the passenger information  130  stored in the storage device  110  in a configuration example of a device for notification to moving body passengers according to the second embodiment. The notification request information in the passenger information  130  further includes individual level information. The individual level information is information about individual levels set by the passengers in order to notify, among control target contents that the passengers are to be notified, only control target contents desired by the passenger. The individual levels are individually set for control target contents the degrees of importance of which are below the predetermined level. Setting of the individual levels is performed, for example, by presenting control target contents the degrees of importance of which are below the predetermined level to passengers planning to use a moving body in advance, and each of the passengers responding thereto. 
       FIG.  8    is a flowchart showing an example of a process of the output destination device determination processing unit  330  of the device for notification to moving body passengers according to the second embodiment. 
     At step S 300 , if the unwanted notification is not set, the process proceeds to step S 310 . 
     At step S 310 , the output destination device determination processing unit  330  determines whether or not the degree of importance of a control target content is at or above an individual level. 
     If it is determined that the degree of importance of the control target content is at or above the individual level (step S 310 ; Yes), the process proceeds to step S 320 . Otherwise (step S 310 ; No), the process proceeds to step S 330 . 
     At step S 320 , the output destination device determination processing unit  330  sets the communication device  40  as the output destination device that is to be notified of the control target content. 
     At step S 330 , the output destination device determination processing unit  330  sets “none” for the output destination device that is to be notified of the control target content. 
     At step S 340 , the output destination device determination processing unit  330  outputs information about the set output destination device. 
     The individual levels set by the passengers may be controlled according to hours. For example, in a scene of a night bus or the like, notification may not be performed in the night-time if, even though the degree of importance of a control target content is at or above an individual level, the degree of importance of the control target content is below the predetermined level. 
     As described above, according to the second embodiment, it is possible to notify, among control target contents that each passenger who requires notification of control target contents is to be notified of, a control target content the degree of importance of which is determined to be at or above an individual level set by the passenger, based on individual levels set by passengers. Therefore, in this case, it is possible to notify, among the control target contents that the passenger is to be notified of, only the control target content requested by the passenger. Thus, according to the present disclosure, it becomes possible to control output of notification contents to an output destination device according to degrees of importance of the notification contents and information about passengers.