JP2016162186A - Position determination device, operation monitoring system, and position determination method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To determine the position of a person in a vehicle.SOLUTION: A storage unit 12 stores movement locus data on a reference position in a vehicle traveling around a curve. A data acquisition unit 111 acquires positional information outputted from a positioning sensor accompanied by a person in the vehicle. A determination unit 112 determines the position of a person in the vehicle by comparing movement locus data on the position of a person in the vehicle traveling around a curve, which is generated based on the acquired positional information, with the movement locus data on the reference position.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a position determination device, an operation monitoring system, and a position determination method for determining the position of a person in a vehicle.

  In recent years, violent acts against bus jacks and crew have been increasing. In particular, in the United States, there are many school bus jacks, and it is required to ensure the safety of passengers who are children. On the other hand, it is attempted to install a monitoring camera in a vehicle (see, for example, Patent Document 1).

JP 2008-3789 A

  In the method of continuously sending the video taken by the monitoring camera to the monitoring center in real time, the communication load becomes large. Further, in the method in which the monitoring camera determines abnormality and sends an alert signal to the monitoring center, if the monitoring camera is broken by a criminal before sending the alert signal, the alert signal cannot be sent. Although it is conceivable that the crew member sends an alert signal to the monitoring center by manual operation, it may be difficult to send the alert signal if the busjacker is deprived of freedom.

  In school buses that children use for school, ensuring the safety of children in the car is left to a single bus driver. Therefore, a system for determining whether the school bus is operating normally by checking the position of the school bus based on GPS (Global Positioning System) information or the like can be considered.

  However, even school buses that seem to run normally may have unexpected accidents or incidents in the car. Accidents in the car can be detected only by checking the location of the school bus using GPS information. And sometimes overlooked incidents. There may be cases where accidents and incidents in the car are left unattended without being noticed by anyone outside.

  Also, in a crisis situation where a school bus is jacked by someone, if the radio is cut off by the criminal or the in-vehicle surveillance camera is destroyed, it takes time for the operation monitoring center to grasp the situation and deal with it. Was in the back.

  The present invention has been made in view of such circumstances, and an object thereof is to determine the position of a person in a vehicle.

  In order to solve the above problems, a position determination device (10) according to an aspect of the present invention includes a storage unit (121) that stores movement locus data of a reference position in a vehicle when the vehicle curves, and the vehicle An acquisition unit (111) for acquiring position information output from a positioning sensor (13) attached to a person inside, and a position where the person is generated when the vehicle generated based on the acquired position information curves And a determination unit (112) for comparing the movement locus data of the reference position and the movement locus data of the reference position to determine the position of the person in the vehicle.

  Another aspect of the present invention is also a position determination device (10). The device (10) outputs from a storage unit (121) for storing a transition of acceleration at a reference position in the vehicle when the vehicle curves, and an acceleration sensor (14) attached to a person in the vehicle. An acquisition unit (111) for acquiring the acceleration information to be generated, a transition of acceleration at the position where the person is present when the vehicle is curved generated based on the acquired acceleration information, and a transition of acceleration at the reference position And a determination unit (112) for determining a position where the person is present in the vehicle.

  Yet another aspect of the present invention is an operation monitoring system (5). The operation monitoring system (5) is an operation monitoring system (5) including a terminal device (10) provided in a vehicle and a management device (20) provided outside the vehicle, and the terminal device (10). The acquisition unit (111) for acquiring the position information output from the positioning sensor (13) associated with the person in the vehicle, and the acquired position information is transmitted to the management device (20) via the network. And a communication unit (15). The management device (20) receives a storage unit (22) that stores movement locus data of a reference position in the vehicle when the vehicle curves, and position information transmitted from the terminal device (10). The movement locus data of the position where the person is present when the vehicle curves based on the received position information is compared with the movement locus data of the reference position, and the communication unit (25) And a determination unit (212) for determining a position where the person is present.

  Yet another aspect of the present invention is also an operation monitoring system (5). The operation monitoring system (5) is an operation monitoring system (5) including a terminal device (10) provided in a vehicle and a management device (20) provided outside the vehicle, and the terminal device (10). Transmits the acceleration information output from the acceleration sensor (14) associated with the person in the vehicle and transmits the acquired acceleration information to the management device (20) via the network. And a communication unit (15). The management device (20) receives acceleration information transmitted from the terminal device (10) and a storage unit (22) that stores a transition of acceleration at a reference position in the vehicle when the vehicle curves. The communication unit (25) is compared with the acceleration transition at the position where the person is present when the vehicle is generated based on the received acceleration information and the acceleration transition at the reference position. And a determination unit (25) for determining a position where the person is present.

  Yet another embodiment of the present invention is a position determination method. This method includes a step of acquiring position information output from a positioning sensor attached to a person in the vehicle, and a movement of the position where the person is present when the vehicle is generated based on the acquired position information. Comparing the locus data with the movement locus data of a reference position in the vehicle when the vehicle curves in advance, and determining the position where the person is in the vehicle.

  Yet another embodiment of the present invention is also a position determination method. The method includes: a storage unit that stores a transition of acceleration at a reference position in the vehicle when the vehicle curves; and a step of acquiring acceleration information output from an acceleration sensor attached to a person in the vehicle; Transition of acceleration at the position where the person is present when the vehicle is curved generated based on the acquired acceleration information and transition of acceleration at a reference position in the vehicle when the vehicle is registered in advance And a step of determining a position where the person is present in the vehicle.

  It should be noted that any combination of the above-described constituent elements and a conversion of the expression of the present invention between a method, an apparatus, a system, a recording medium, a computer program, etc. are also effective as an aspect of the present invention.

  According to the present invention, the position of a person in a vehicle can be determined.

It is a figure for demonstrating the operation monitoring system which concerns on Embodiment 1 of this invention. 2 is a diagram illustrating a configuration of a terminal device according to Embodiment 1. FIG. It is a figure which shows the example of the movement locus | trajectory at the time of the left turn of a bus | bath. 6 is a flowchart showing a flow of position determination processing by the terminal device according to Embodiment 1; 10 is a flowchart showing a flow of position determination processing by the terminal device according to the second embodiment. FIG. 10 is a diagram illustrating a configuration of a terminal device and a management device according to a third embodiment. 10 is a flowchart illustrating a flow of position determination processing by a terminal device and a management device according to Embodiment 3. 14 is a flowchart showing a flow of position determination processing by the terminal device and the management device according to the fourth embodiment. It is a figure for demonstrating the operation monitoring system which concerns on Embodiment 5. FIG. It is a figure which shows the structure of the 1st terminal device which concerns on Embodiment 5, and a 2nd terminal device. FIG. 11 is a diagram for explaining a movement trajectory when the bus is turning left. 14 is a flowchart showing a flow of position determination processing by the first terminal device and the second terminal device according to Embodiment 5. 18 is a flowchart showing a flow of position determination processing by the first terminal device and the second terminal device according to the sixth embodiment. FIG. 10 is a diagram illustrating configurations of a first terminal device, a second terminal device, and a management device according to a seventh embodiment. 18 is a flowchart showing a flow of position determination processing by the first terminal device, the second terminal device, and the management device according to Embodiment 7. FIG. 29 is a flowchart illustrating a flow of position determination processing by the first terminal device, the second terminal device, and the management device according to Embodiment 8.

(Embodiment 1)
FIG. 1 is a diagram for explaining an operation monitoring system 5 according to Embodiment 1 of the present invention. The operation monitoring system 5 includes a terminal device 10 carried by the driver 4 of the bus 1 and a management device 20 installed in the operation monitoring center 2. The terminal device 10 and the management device 20 can be composed of a portable wireless portable radio for business use and a PC connected to the base station radio. The terminal device 10 and the management device 20 may be configured by a general mobile terminal device such as a smartphone or a feature phone, and a PC connected to the IP network. The terminal device 10 has a function of receiving radio waves from the GPS satellite 3.

  FIG. 2 is a diagram illustrating a configuration of the terminal device 10 according to the first embodiment. The terminal device 10 includes a control unit 11, a storage unit 12, a GPS reception unit 13, an acceleration detection unit 14, and a communication unit 15. The control unit 11 includes a data acquisition unit 111, a determination unit 112, and an abnormality notification unit 113. In the functional blocks of the control unit 11 in FIG. 2, only functional blocks related to the process of interest in the first embodiment are drawn. The function of the control unit 11 can be realized by cooperation of hardware resources and software resources, or only by hardware resources. Processors, ROM, RAM, and other LSIs can be used as hardware resources. Programs such as operating systems and applications can be used as software resources.

  The storage unit 12 includes a storage medium such as a nonvolatile semiconductor memory. In the first embodiment, the storage unit 12 includes a reference data holding unit 121. Also in the functional blocks of the storage unit 12 in FIG. 2, only functional blocks related to the process of interest in the first embodiment are drawn.

  The GPS receiving unit 13 receives radio waves from the GPS satellite 3, generates position information, and outputs the position information to the control unit 11. Specifically, radio waves from a plurality of GPS satellites 3 are received, latitude and longitude are calculated based on time information included in the plurality of radio waves, and output to the control unit 11 as position information. Note that the positioning of the terminal device 10 by the GPS receiving unit 13 is an example, and the terminal device 10 may be positioned by using a positioning sensor other than the GPS sensor. For example, in a situation where a system in which radio waves are transmitted from roadside devices such as traffic lights, positioning can be performed based on radio waves received from roadside devices.

  The GPS receiving unit 13 may be configured by a unit member separated from the main body of the terminal device 10. In that case, if the driver 4 is carrying the unit member which comprises the GPS receiving part 13, the main body of the terminal device 10 may be fixed to the specific position in a vehicle. In this case, the GPS receiver 13 and the terminal device 10 are connected by short-range wireless communication such as Bluetooth (registered trademark).

  The acceleration detection unit 14 includes a biaxial or triaxial acceleration sensor. A biaxial acceleration sensor may be used when the terminal device 10 is carried by the driver 4 with the posture of the terminal device 10 fixed, but a triaxial acceleration sensor is used when the posture of the terminal device 10 varies. If a three-axis acceleration sensor is used, the attitude of the terminal device 10 can be estimated. That is, the output values of the X axis and the Y axis can be corrected according to the output value of the Z axis. The acceleration detection unit 14 outputs the detected acceleration signal to the control unit 11 as acceleration information. In the first embodiment, the acceleration detection unit 14 is not an essential element and can be omitted. In the second embodiment, the acceleration detection unit 14 is an essential element.

  The reference data holding unit 121 stores movement locus data of a reference position in the vehicle when the bus 1 curves. The reference position is set to the position of the driver's seat, for example. The movement locus data of the reference position in the vehicle when the bus 1 curves is data generated in advance based on experiments and simulations, and at least movement locus data at the time of forward right turn or forward left turn is prepared. Note that the movement trajectory data at the time of a curve accompanied by a turn of about 90 degrees is prepared for both the right turn and the left turn. Further, if necessary, movement trajectory data for reverse right turn and reverse left turn may be prepared. In addition, when the operation route of the bus 1 is known in advance, more effective movement trajectory data can be obtained by performing the experiment on the operation route. In the simulation, more effective movement trajectory data can be obtained by using the width of the operation route of the bus 1 and the situation of the intersection where the bus 1 turns to the left and right (such as the degree of the corner of the intersection being shaved).

  The data acquisition unit 111 acquires position information output from the GPS reception unit 13 attached to the driver 4. The determination unit 112 generates movement trajectory data of a position where the driver 4 is located (hereinafter, appropriately referred to as a driver position) based on the acquired position information. In particular, it is essential to generate the movement locus data of the driver position when the bus 1 curves. The determination unit 112 determines the movement locus data of the driver position when the generated bus 1 curves, and the reference position (the driver seat position in the first embodiment) when the bus 1 held in the reference data holding unit 121 curves. ) Is compared. The determination unit 112 can determine the driver position in the vehicle according to the comparison result. Specifically, whether or not the driver 4 is seated in the driver's seat can be determined based on the degree of deviation between the movement locus of the reference position in the vehicle and the movement locus of the driver position. If the difference between the two is larger than the set value, it can be determined that the driver 4 is not seated in the driver's seat.

  Normally, when the bus is moving, the driver 4 is seated in the driver's seat. Therefore, if the driver 4 is not seated in the driver's seat, an abnormality has occurred in the vehicle. presume. When the determination unit 112 determines that the driver 4 is not seated in the driver's seat, the abnormality notification unit 113 notifies the management device 20 of the operation monitoring center 2 of an abnormality occurrence signal from the communication unit 15 via the network. Thereby, the operator of the operation monitoring center 2 can recognize that an abnormality has occurred in the vehicle.

  FIG. 3 is a diagram illustrating an example of a movement locus when the bus 1 turns left. In the bus 1 having a long wheelbase, when the intersection is turned to the right or left, a large inner wheel difference and outer wheel difference are generated. In order to prevent the car body from entering the sidewalks and shoulders, the handle is cut after entering the center of the intersection. As shown in FIG. 3, the curve drawn by the movement locus 6a of the driver seat position and the curve drawn by the movement locus 6b of the rear seat are greatly deviated. Therefore, it can be determined whether or not the driver 4 is seated in the driver's seat by comparing the movement trajectory data detected when the vehicle curves with the movement trajectory data held in advance.

  Note that movement trajectory data at a plurality of points in the vehicle may be held in the reference data holding unit 121 in advance. By comparing the movement trajectory data detected when the vehicle is turning with a plurality of movement trajectory data held in advance, the driver position in the vehicle can be specified more specifically.

  FIG. 4 is a flowchart showing a flow of position determination processing by the terminal device 10 according to the first embodiment. The data acquisition unit 111 acquires the position information output from the GPS reception unit 13 (S10). The determination unit 112 continuously plots the acquired position information, and generates movement trajectory data of the position where the driver 4 carrying the GPS receiving unit 13 is present (S11). The determination unit 112 determines whether or not the vehicle has started a curve (S12). For example, when the traveling direction of the vehicle based on the position information changes by a predetermined angle or more within a predetermined movement distance or within a predetermined time, it can be determined that the curve starts. It is also possible to determine whether the turn is right or left. The start of the curve may be determined based on the output value of the acceleration detector 14 or the output value of a gyro sensor (not shown). Further, for example, if school bus operation route information and operation route road map information are stored in advance, these information and position information output from the GPS receiver 13 attached to the driver 4 From this, it is also possible to estimate whether or not the vehicle has started a curve.

  When the curve is started (Y in S12), the determination unit 112 compares the movement locus data of the driver position with the reference movement locus data (S13). When the difference between the two is equal to or greater than the set value (Y in S13), the abnormality notification unit 113 notifies the management apparatus 20 of the operation monitoring center 2 of the abnormality occurrence signal (S14). The divergence determination algorithm between the movement trajectory data is not particularly limited as long as an existing general algorithm is used.

  As described above, according to the first embodiment, by comparing the movement trajectory data of the position where the driver 4 carrying the GPS receiver 13 is with the reference movement trajectory data, driving in the vehicle is performed. The position of the hand 4 can be determined. Further, when the difference between the two is equal to or greater than the set value, an abnormality occurrence signal is automatically notified to the operation monitoring center 2, so that an abnormality in the vehicle can be notified to the operation monitoring center 2 without requiring the driver 4 to operate. . In addition, unlike the surveillance camera and existing wireless devices, the GPS receiver 13 is not conspicuous, so there is a high possibility that the criminal will not notice it. Therefore, there is a high degree of certainty that the operation monitoring center 2 is notified of the abnormality. Even when the driver's seat is hijacked by a criminal and is normally operating, the operation monitoring center 2 is notified of the abnormality, so the incident is detected quickly.

(Embodiment 2)
Next, a second embodiment will be described. In the first embodiment, the example in which the driver position is determined using the movement trajectory data based on the position information output from the GPS receiver 13 carried by the driver 4 has been described. In the second embodiment, an example in which the driver position is determined using acceleration transition data detected by the acceleration detection unit 14 carried by the driver 4 will be described.

  The configuration of terminal apparatus 10 according to Embodiment 2 is basically the same as the configuration of terminal apparatus 10 according to Embodiment 1 shown in FIG. In the second embodiment, the GPS receiver 13 is not an essential element and can be omitted. The acceleration detection unit 14 may be configured by a unit member separated from the main body of the terminal device 10. In that case, as long as the driver 4 carries the unit member including the acceleration detection unit 14, the main body of the terminal device 10 may be fixed at a specific position in the vehicle. In this case, the acceleration detection unit 14 and the terminal device 10 are connected by near field communication such as Bluetooth (registered trademark).

  In many cases, the acceleration sensor is included in the biosensor module. In addition to sensors for obtaining biological information such as a heart rate sensor and a body temperature sensor, an acceleration sensor is often mounted in the biosensor module in order to detect the posture of the wearer. In the example in which this biosensor module is mounted on the body of the driver 4, the abnormality of the body of the driver 4 can be detected and notified to the operation monitoring center 2.

  In the second embodiment, the reference data holding unit 121 stores acceleration transition data of a reference position in the vehicle when the bus 1 curves. The reference position is set to the position of the driver's seat, for example. The acceleration transition data of the reference position in the vehicle when the bus 1 curves is data generated in advance based on experiments and simulations, and at least acceleration transition data at the time of forward right turn and forward left turn is prepared. Note that acceleration transition data at the time of a curve accompanied by a turn of about 90 degrees is prepared for both right and left turns. If necessary, acceleration transition data at the time of reverse right turn and reverse left turn may be prepared.

  The data acquisition unit 111 acquires acceleration information output from the acceleration detection unit 14 attached to the driver 4. The determination unit 112 generates acceleration transition data of the driver position based on the acquired acceleration information. In particular, it is essential to generate acceleration transition data of the driver position when the bus 1 curves. The determination unit 112 compares the acceleration transition data of the driver position when the generated bus 1 curves with the acceleration transition data of the reference position when the bus 1 held in the reference data holding unit 121 curves. The determination unit 112 can determine the driver position in the vehicle according to the comparison result. Specifically, whether or not the driver 4 is seated in the driver's seat can be determined based on the degree of difference between the acceleration transition at the reference position and the acceleration transition at the driver position in the vehicle. If the difference between the two is larger than the set value, it can be determined that the driver 4 is not seated in the driver's seat.

  When the determination unit 112 determines that the driver 4 is not seated in the driver's seat, the abnormality notification unit 113 notifies the management device 20 of the operation monitoring center 2 of an abnormality occurrence signal from the communication unit 15 via the network. Thereby, the operator of the operation monitoring center 2 can recognize that an abnormality has occurred in the vehicle.

  FIG. 5 is a flowchart showing a flow of position determination processing by the terminal device 10 according to the second embodiment. The data acquisition unit 111 acquires acceleration information output from the acceleration detection unit 14 (S20). The determination unit 112 continuously plots the acquired acceleration information, and generates acceleration transition data of the position where the driver 4 carrying the acceleration detection unit 14 is present (S21). The determination unit 112 determines whether or not the vehicle has started a curve (S22).

  When the curve is started (Y in S22), the determination unit 112 compares the acceleration transition data of the driver position with the reference acceleration trajectory data (S23). If the difference between the two is equal to or greater than the set value (Y in S23), the abnormality notification unit 113 notifies the management device 20 of the operation monitoring center 2 of the abnormality occurrence signal (S24). An existing general algorithm may be used as a deviation determination algorithm between acceleration transition data, and the algorithm is not particularly limited.

  As described above, according to the second embodiment, by comparing the acceleration transition data at the position where the driver 4 carrying the acceleration detector 14 is present with the reference acceleration transition data, driving in the vehicle is performed. The position of the hand 4 can be determined. Further, when the difference between the two is equal to or greater than the set value, an abnormality occurrence signal is automatically notified to the operation monitoring center 2, so that an abnormality in the vehicle can be notified to the operation monitoring center 2 without requiring the driver 4 to operate. . Further, since it is not necessary to receive radio waves from the GPS satellite 3 as compared with the first embodiment, it can be used in places where radio waves are difficult to reach, such as underground and tunnels.

  Note that the position determination process of the driver 4 using the movement trajectory data according to the first embodiment and the position determination process of the driver 4 using the acceleration transition data according to the second embodiment may be used in combination. As described above, at the place where the radio wave from the GPS satellite 3 does not reach, only the position determination process of the driver 4 using the acceleration transition data according to the second embodiment is executed. Further, the difference between acceleration transition data at the time of a curve between two distant points in the vehicle becomes small when the vehicle speed is low, and the position determination process may be difficult. Therefore, when the vehicle speed is less than the set value, only the position determination process of the driver 4 using the movement trajectory data may be executed. The vehicle speed can be estimated from a change in position information acquired from the GPS receiver 13.

(Embodiment 3)
FIG. 6 is a diagram illustrating configurations of the terminal device 10 and the management device 20 according to the third embodiment. In the third embodiment, the control unit 11 of the terminal device 10 includes a data acquisition unit 111 and a data notification unit 114. The determination unit 112 and the abnormality notification unit 113 in the first and second embodiments are not provided.

  The management device 20 includes a control unit 21, a storage unit 22, a display unit 23, an operation unit 24, and a communication unit 25. The control unit 21 includes a data acquisition unit 211 and a determination unit 212. In the functional block of the control unit 21 in FIG. 6, only functional blocks related to the process of interest in the third embodiment are drawn. The function of the control unit 11 can be realized by cooperation of hardware resources and software resources, or only by hardware resources.

  The storage unit 22 includes a storage medium such as an HDD or an SSD. In the third embodiment, the storage unit 22 includes a reference data holding unit 221. Also in the functional blocks of the storage unit 22 in FIG. 6, only functional blocks related to the process of interest in the third embodiment are drawn. The reference data holding unit 221 of the management device 20 holds the same data as the reference movement trajectory data held in the reference data holding unit 121 of the terminal device 10 according to Embodiment 1.

  The data acquisition unit 111 of the terminal device 10 acquires position information output from the GPS reception unit 13 attached to the driver 4. The data notification unit 114 notifies the management apparatus 20 of the acquired position information from the communication unit 15 via the network. The location information is transmitted from the communication unit 15 to the management device 20 as needed. For example, it is periodically transmitted at a cycle of several times per second.

  The communication unit 25 of the management device 20 receives the position information transmitted from the terminal device 10. The data acquisition unit 211 acquires the received position information. The determination unit 212 generates movement locus data of the driver position based on the acquired position information. The determination unit 212 can output the generated movement trajectory data to the display unit 23 and display the movement trajectory of the bus 1 in an overlapping manner on the map in real time.

  The determination unit 212 compares the movement locus data of the driver position when the generated bus 1 curves with the movement locus data of the reference position when the bus 1 held in the reference data holding unit 221 curves. The determination unit 212 can determine the driver position in the vehicle according to the comparison result.

  If the determination unit 212 determines that the driver 4 is not seated in the driver's seat, the determination unit 212 displays an alert message on the display unit 23. An alert sound may be output from a speaker (not shown). Thereby, the operator of the operation monitoring center 2 can recognize that an abnormality has occurred in the vehicle.

  FIG. 7 is a flowchart showing a flow of position determination processing by the terminal device 10 and the management device 20 according to the third embodiment. The data acquisition unit 111 of the terminal device 10 acquires the position information output from the GPS reception unit 13 (S30). The data notification unit 114 transmits the position information to the management device 20 via the communication unit 15 (S31). This position information transmission process continues until the position transmission function is turned off (Y in S32) (N in S32).

  The data acquisition unit 211 of the management device 20 receives the position information transmitted from the terminal device 10 via the communication unit 25 (S33). The determination unit 212 continuously plots the received position information, and generates movement trajectory data of the position where the driver 4 carrying the GPS receiving unit 13 is present (S34). The determination unit 212 determines whether or not the vehicle has started a curve (S35). When the curve is started (Y in S35), the determination unit 212 compares the movement locus data of the driver position with the reference movement locus data (S36). If the difference between the two is equal to or greater than the set value (Y in S36), an alert message is displayed on the display unit 23 (S37).

  As described above, according to the third embodiment, the driving trajectory data at the position where the driver 4 carrying the GPS receiver 13 is compared with the reference moving trajectory data, thereby driving in the vehicle. The position of the hand 4 can be determined. Moreover, since the management device 20 of the operation monitoring center 2 detects an abnormality based on the position information periodically transmitted from the terminal device 10, the operation in the vehicle is monitored without requiring the driver 4 to operate. The center 2 can grasp this. Since there is no need to execute the movement trajectory data generation process and the reference movement trajectory data comparison process on the terminal device 10 side, the amount of calculation can be reduced as compared with the first embodiment. Further, the existing terminal device 10 that simply continues to transmit the position information to the management device 20 of the operation monitoring center 2 can be used as it is. Further, since the transmission of position information is not transmission of video data, the amount of communication data is small and the communication load can be suppressed.

  Further, when the bus 1 curves, the control unit 21 may further display the reference movement locus on the map displayed on the display unit 23. Since the movement trajectory based on the position information received from the terminal device 10 is also displayed on the map in an overlapping manner, the operator can visually confirm the difference between the movement trajectory based on the received position information and the reference movement trajectory. It becomes like this.

(Embodiment 4)
Next, a fourth embodiment will be described. In the fourth embodiment, an example in which the driver position is determined using the transition data of the acceleration detected by the acceleration detection unit 14 carried by the driver 4 as in the second embodiment will be described.

  The configurations of the terminal device 10 and the management device 20 according to Embodiment 4 are basically the same as the configurations of the terminal device 10 and the management device 20 according to Embodiment 3 shown in FIG. In the fourth embodiment, the reference data holding unit 221 of the management device 20 holds the same reference acceleration transition data held in the reference data holding unit 121 of the terminal device 10 according to the second embodiment. .

  The data acquisition unit 111 of the terminal device 10 acquires acceleration information output from the acceleration detection unit 14 attached to the driver 4. The data notification unit 114 notifies the acquired acceleration information from the communication unit 15 to the management device 20 via the network. The acceleration information is transmitted from the communication unit 15 to the management device 20 as needed. For example, it is periodically transmitted at a cycle of once every several seconds.

  The communication unit 25 of the management device 20 receives the acceleration information transmitted from the terminal device 10. The data acquisition unit 211 acquires the received acceleration information. The determination unit 212 generates driver position acceleration transition data based on the acquired acceleration information.

  The determination unit 212 compares the acceleration transition data of the driver position when the generated bus 1 curves with the acceleration transition data of the reference position when the bus 1 held in the reference data holding unit 221 curves. The determination unit 212 can determine the driver position in the vehicle according to the comparison result.

  If the determination unit 212 determines that the driver 4 is not seated in the driver's seat, the determination unit 212 displays an alert message on the display unit 23. An alert sound may be output from a speaker (not shown). Thereby, the operator of the operation monitoring center 2 can recognize that an abnormality has occurred in the vehicle.

  FIG. 8 is a flowchart showing a flow of position determination processing by the terminal device 10 and the management device 20 according to the fourth embodiment. The data acquisition unit 111 of the terminal device 10 acquires acceleration information output from the acceleration detection unit 14 (S40). The data notification unit 114 transmits acceleration information to the management apparatus 20 via the communication unit 15 (S41). This acceleration information transmission process is continued until the acceleration transmission function is turned off (Y in S42) (N in S42).

  The data acquisition unit 211 of the management device 20 receives the acceleration information transmitted from the terminal device 10 via the communication unit 25 (S43). The determination unit 212 continuously plots the received acceleration information, and generates acceleration transition data of the position where the driver 4 carrying the acceleration detection unit 14 is present (S44). The determination unit 212 determines whether the vehicle has started a curve (S45). When the curve is started (Y in S45), the determination unit 212 compares the acceleration transition data of the driver position with the reference acceleration transition data (S46). If the difference between the two is equal to or greater than the set value (Y in S46), an alert message is displayed on the display unit 23 (S47).

  As described above, according to the fourth embodiment, by comparing the acceleration transition data at the position where the driver 4 carrying the acceleration detector 14 is present with the reference acceleration transition data, driving in the vehicle is performed. The position of the hand 4 can be determined. Further, since the management device 20 of the operation monitoring center 2 detects an abnormality based on the acceleration information periodically transmitted from the terminal device 10, the operation in the vehicle is monitored without requiring the operation of the driver 4. The center 2 can grasp this. Since it is not necessary to execute the generation process of acceleration transition data and the comparison process with reference acceleration transition data on the terminal device 10 side, the amount of calculation can be reduced as compared with the second embodiment. Further, since the transmission of acceleration information is not the transmission of video data, the communication data amount is small and the communication load can be suppressed.

  Further, when the bus 1 curves, the control unit 21 may cause the acceleration transition based on the acceleration information received from the terminal device 10 and the reference movement trajectory to be displayed on the map displayed on the display unit 23 in an overlapping manner. . The operator can visually check the difference between the two.

(Embodiment 5)
FIG. 9 is a diagram for explaining the operation monitoring system 5 according to the fifth embodiment. The operation monitoring system 5 includes a first terminal device 10a carried by the driver 4a of the bus 1 and a second terminal device 10b carried by the conductor 4b of the bus 1. The second terminal device 10b is not limited to the conductor 4b but may be a driver 4a such as a teacher, a guardian, or a guide, and a cooperator of the operation monitoring system 5 other than the conductor 4b. In the following description, the first terminal device 10a is a master device and the second terminal device 10b is a slave device, but the reverse may be possible.

  FIG. 10 is a diagram illustrating a configuration of the first terminal device 10a and the second terminal device 10b according to the fifth embodiment. The configuration of the first terminal apparatus 10a is basically the same as that of the terminal apparatus 10 according to Embodiment 1 described in FIG. However, the reference data holding unit 121 is not necessary. The configuration of second terminal apparatus 10b is basically the same as that of terminal apparatus 10 according to Embodiment 3 described in FIG. However, the transmission destination of the position information is not the management device 20 of the operation monitoring center 2 but the first terminal device 10a. The communication unit 15 of the first terminal device 10a and the communication unit 15 of the second terminal device 10b are connected by near field communication such as Bluetooth (registered trademark).

  The data acquisition unit 111 of the first terminal device 10a acquires position information output from the GPS reception unit 13 attached to the driver 4a. The data acquisition unit 111 of the second terminal device 10b acquires position information output from the GPS receiving unit 13 attached to the conductor 4b. The data notification unit 114 notifies the first terminal device 10a of the acquired position information from the communication unit 15 using short-range wireless communication.

  The communication unit 15 of the first terminal device 10a receives the position information transmitted from the second terminal device 10b. The data acquisition unit 111 of the first terminal device 10a acquires the received position information. The determination unit 112 generates movement locus data of the driver position and movement locus data of the conductor position based on the acquired two types of position information. In particular, it is indispensable to generate the movement locus data of the driver position and the movement locus data of the conductor position when the bus 1 curves.

  The determination unit 112 compares the movement locus data of the driver position when the generated bus 1 curves with the movement locus data of the conductor position. Based on the comparison result, the determination unit 112 can specify the relative positional relationship between the driver position and the conductor position within the vehicle. For example, when the driver position is behind the conductor position based on the traveling direction, it can be determined that the driver 4a is not seated in the driver's seat and an abnormality has occurred.

  When the determination unit 112 determines that the driver 4a is not seated in the driver's seat, the abnormality notification unit 113 notifies the management device 20 of the operation monitoring center 2 of an abnormality occurrence signal from the communication unit 15 via the network. Thereby, the operator of the operation monitoring center 2 can recognize that an abnormality has occurred in the vehicle.

  FIG. 11 is a diagram for explaining a movement trajectory when the bus 1 is turning left. In FIG. 11, the dotted line in the bus 1 indicates a position where the distance from the center of the circle drawn when the bus 1 turns to the left is equal. The dotted line in the bus 1 is a circular arc, but is shown here as a straight line for convenience. Note that the distance from the center of the circle increases in the direction of the solid arrow in the bus 1. When turning left, the radius of rotation increases as the vehicle approaches the right front in the traveling direction. Accordingly, the turning radius of the driver 4a is larger than that of the conductor 4b. Therefore, by comparing the turning radius based on the movement locus of the driver position and the turning radius based on the movement locus of the conductor position, the relative positional relationship between them can be specified. In the case of left turn, it can be seen that the one with the larger turning radius is in the right front in the vehicle. In the case of a right turn, it can be seen that the one with the larger turning radius is in the left front in the vehicle.

  In the first and third embodiments, the reference data holding units 121 and 221 may store in advance the turning radius of the driver's seat when the vehicle turns with the minimum turning radius. The minimum turning radius is a trajectory drawn by the vehicle when the steering wheel is turned to the maximum. The determination units 112 and 212 determine that the driver 4 is not seated in the driver seat when the movement locus of the driver position becomes smaller than the turning radius.

  FIG. 12 is a flowchart showing a flow of position determination processing by the first terminal apparatus 10a and the second terminal apparatus 10b according to the fifth embodiment. The data acquisition unit 111 of the first terminal device 10a acquires the position information output from the GPS receiver 13 carried by the driver 4a (S50). The data acquisition unit 111 of the second terminal device 10b acquires position information output from the GPS receiver 13 carried in the conductor 4b (S51). The data notification unit 114 transmits the position information to the first terminal device 10a via the communication unit 15 (S52). This position information transmission process continues until the position transmission function is turned off (Y in S53) (N in S53).

  The data acquisition unit 111 of the first terminal device 10a receives the position information transmitted from the second terminal device 10b via the communication unit 15 (S54). The determination unit 112 continuously plots two types of position information, and generates movement locus data of the driver position and movement locus data of the conductor position (S55). The determination unit 112 determines whether or not the vehicle has started a curve (S56). When the curve is started (Y in S56), the determination unit 112 compares the movement locus data of the driver position with the movement locus data of the conductor position (S57). When the positional relationship between the two is abnormal (Y in S57), the abnormality notification unit 113 notifies the management device 20 of the operation monitoring center 2 of the abnormality occurrence signal (S58).

  As described above, according to the fifth embodiment, the movement locus data of the position where the driver 4a carrying the GPS receiving unit 13 is located and the movement locus of the conductor 4b carrying another GPS receiving unit 13 are described. By comparing the data, the position of the driver 4a in the vehicle can be determined. In addition, when the positional relationship between the two is abnormal, an abnormality occurrence signal is automatically notified to the operation monitoring center 2, so that an abnormality in the vehicle can be transmitted to the operation monitoring center 2 without requiring the operation of the driver 4 a or the conductor 4 b. Can be notified. In addition, since the data detected in the same environment is not compared with the reference data, noise due to environmental factors is canceled out, and more accurate determination is possible.

  The conductor 4b may carry a GPS module having a short-range wireless communication function instead of the second terminal device 10b. Further, the second terminal device 10b or the GPS module having the short-range wireless communication function is not necessarily carried by a person, and may be fixed at a predetermined position in the vehicle. For example, it may be installed in the driver's seat. In this case, when the turning radius based on the movement locus of the position where the driver 4a is present is smaller, it can be determined that the driver 4a is not seated in the driver's seat.

(Embodiment 6)
Next, a sixth embodiment will be described. In the sixth embodiment, the acceleration transition data detected by the acceleration detector 14 carried by the driver 4a and the acceleration transition data detected by the acceleration detector 14 carried by the conductor 4b are used. An example of determining the relative positional relationship between the driver position and the conductor position will be described.

  The configurations of the first terminal device 10a and the second terminal device 10b according to Embodiment 6 are basically the same as the configurations of the first terminal device 10a and the second terminal device 10b according to Embodiment 5 shown in FIG. It is. The data acquisition unit 111 of the first terminal device 10a acquires acceleration information output from the acceleration detection unit 14 attached to the driver 4a. The data acquisition unit 111 of the second terminal device 10b acquires acceleration information output from the acceleration detection unit 14 attached to the conductor 4b. The data notification unit 114 notifies the acquired acceleration information from the communication unit 15 to the first terminal device 10a using short-range wireless communication.

  The communication unit 15 of the first terminal device 10a receives the acceleration information transmitted from the second terminal device 10b. The data acquisition unit 111 of the first terminal device 10a acquires the received acceleration information. The determination unit 112 generates driver position acceleration transition data and driver position acceleration transition data based on the acquired two types of acceleration information. In particular, it is essential to generate acceleration transition data of the driver position and acceleration transition data of the conductor position when the bus 1 curves.

  The determination unit 112 compares the acceleration transition data of the driver position when the generated bus 1 curves with the acceleration transition data of the conductor position. Based on the comparison result, the determination unit 112 can specify the relative positional relationship between the driver position and the conductor position within the vehicle. When the determination unit 112 determines that the driver 4a is not seated in the driver's seat, the abnormality notification unit 113 notifies the management device 20 of the operation monitoring center 2 of an abnormality occurrence signal from the communication unit 15 via the network. Thereby, the operator of the operation monitoring center 2 can recognize that an abnormality has occurred in the vehicle.

  FIG. 13 is a flowchart showing a flow of position determination processing by the first terminal apparatus 10a and the second terminal apparatus 10b according to the sixth embodiment. The data acquisition unit 111 of the first terminal device 10a acquires acceleration information output from the acceleration detection unit 14 carried by the driver 4a (S60). The data acquisition unit 111 of the second terminal device 10b acquires the position information output from the acceleration detection unit 14 carried in the conductor 4b (S61). The data notification unit 114 transmits the acceleration information to the first terminal device 10a via the communication unit 15 (S62). This acceleration information transmission process is continued until the acceleration transmission function is turned off (Y in S63) (N in S63).

  The data acquisition unit 111 of the first terminal device 10a receives the acceleration information transmitted from the second terminal device 10b via the communication unit 15 (S64). The determination unit 112 continuously plots the two types of acceleration information, and generates acceleration transition data of the driver position and acceleration transition data of the conductor position (S65). The determination unit 112 determines whether or not the vehicle has started a curve (S66). When the curve is started (Y in S66), the determination unit 112 compares the acceleration transition data of the driver position with the acceleration transition data of the conductor position (S67). When the relationship between both acceleration transitions is abnormal (Y in S67), the abnormality notification unit 113 notifies the management device 20 of the operation monitoring center 2 of an abnormality occurrence signal (S68).

  As described above, according to the sixth embodiment, the acceleration transition data of the position where the driver 4a carrying the acceleration detection unit 14 is present and the acceleration transition of the conductor 4b carrying another acceleration detection unit 14 are described. By comparing the data, the position of the driver 4a in the vehicle can be determined. Further, when the relationship between the accelerations is abnormal, an abnormality occurrence signal is automatically notified to the operation monitoring center 2, so that an abnormality in the vehicle can be detected without the operation of the driver 4a or the conductor 4b. Can be notified. In addition, since the data detected in the same environment is not compared with the reference data, noise due to environmental factors is canceled out, and more accurate determination is possible.

  The conductor 4b may carry an acceleration sensor module having a short-range wireless communication function instead of the second terminal device 10b. The acceleration sensor module having the second terminal device 10b or the short-range wireless communication function is not necessarily carried by a person, and may be fixed at a predetermined position in the vehicle.

(Embodiment 7)
FIG. 14 is a diagram illustrating configurations of the first terminal device 10a, the second terminal device 10b, and the management device 20 according to the seventh embodiment. The configurations of the first terminal device 10a and the second terminal device 10b according to Embodiment 7 are basically the same as those of the terminal device 10 according to Embodiment 3 described in FIG. The configuration of the management apparatus 20 according to the seventh embodiment is basically the same as that of the management apparatus 20 according to the third embodiment described with reference to FIG. However, the reference data holding unit 221 is not necessary.

  The data acquisition unit 111 of the first terminal device 10a acquires position information output from the GPS reception unit 13 attached to the driver 4a. The data notification unit 114 notifies the management apparatus 20 of the acquired position information from the communication unit 15 via the network. The data acquisition unit 111 of the second terminal device 10b acquires position information output from the GPS receiving unit 13 attached to the conductor 4b. The data notification unit 114 notifies the management apparatus 20 of the acquired position information from the communication unit 15 via the network.

  The communication unit 25 of the management device 20 receives the position information transmitted from the first terminal device 10a and the position information transmitted from the second terminal device 10b, respectively. The data acquisition unit 211 acquires the received position information of the two positions. The determination unit 212 generates the movement locus data of the driver position based on the position information from the first terminal device 10a, and generates the movement locus data of the conductor position based on the position information from the second terminal device 10b.

  The determination unit 212 compares the movement locus data of the driver position when the generated bus 1 curves with the movement locus data of the conductor position. Based on the comparison result, the determination unit 212 can identify the relative positional relationship between the driver position and the conductor position within the vehicle.

  If the determination unit 212 determines that the driver 4 is not seated in the driver's seat, the determination unit 212 displays an alert message on the display unit 23. An alert sound may be output from a speaker (not shown). Thereby, the operator of the operation monitoring center 2 can recognize that an abnormality has occurred in the vehicle.

  FIG. 15 is a flowchart showing a flow of position determination processing by the first terminal device 10a, the second terminal device 10b, and the management device 20 according to the seventh embodiment. The data acquisition unit 111 of the first terminal device 10a acquires position information output from the GPS receiver 13 carried by the driver 4a (S70). The data notification unit 114 transmits the position information to the management device 20 via the communication unit 15 (S71). This position information transmission process continues until the position transmission function is turned off (Y in S72) (N in S72).

  The data acquisition unit 111 of the second terminal device 10b acquires the position information output from the GPS reception unit 13 carried in the conductor 4b (S73). The data notification unit 114 transmits the position information to the management device 20 via the communication unit 15 (S74). This position information transmission process is continued until the position transmission function is turned off (Y in S74) (N in S74).

  The data acquisition unit 211 of the management device 20 receives the position information transmitted from the first terminal device 10a and the second terminal device 10b via the communication unit 25 (S76). The determination unit 212 continuously plots two types of position information, and generates movement locus data of the driver position and movement locus data of the conductor position (S77). The determination unit 212 determines whether the vehicle has started a curve (S78). When the curve is started (Y in S78), the determination unit 212 compares the movement locus data of the driver position with the movement locus data of the conductor position (S79). When the positional relationship between the two is abnormal (Y in S79), the determination unit 212 displays an alert message on the display unit 23 (S799).

  As described above, according to the seventh embodiment, the movement locus data of the position where the driver 4a carrying the GPS receiving unit 13 is located and the movement locus of the conductor 4b carrying another GPS receiving unit 13 are described. By comparing the data, the position of the driver 4a in the vehicle can be determined. Further, since the management device 20 of the operation monitoring center 2 detects an abnormality based on the position information of the driver 4a and the conductor 4b periodically transmitted from the terminal device 10, it is necessary to operate the driver 4a and the conductor 4b. In addition, the operation monitoring center 2 can grasp the abnormality in the vehicle. In addition, since the data detected in the same environment is not compared with the reference data, noise due to environmental factors is canceled out, and more accurate determination is possible. In addition, since it is not necessary to execute the movement locus data generation process and the movement locus data comparison process on the terminal device 10 side, the amount of calculation can be reduced as compared with the fifth embodiment. Further, since the transmission of position information is not transmission of video data, the amount of communication data is small and the communication load can be suppressed.

(Embodiment 8)
Next, an eighth embodiment will be described. In the eighth embodiment, as in the sixth embodiment, the transition data of acceleration detected by the acceleration detection unit 14 carried by the driver 4a and the acceleration detected by the acceleration detection unit 14 carried by the conductor 4b. An example in which the driver position is determined using the transition data will be described.

  The configuration of the first terminal device 10a, the second terminal device 10b, and the management device 20 according to the eighth embodiment is the same as that of the first terminal device 10a, the second terminal device 10b, and the management device according to the seventh embodiment shown in FIG. This is basically the same as the configuration of 20.

  The data acquisition unit 111 of the first terminal device 10a acquires acceleration information output from the acceleration detection unit 14 attached to the driver 4a. The data notification unit 114 notifies the acquired acceleration information from the communication unit 15 to the management device 20 via the network. The data acquisition unit 111 of the second terminal device 10b acquires acceleration information output from the acceleration detection unit 14 attached to the conductor 4b. The data notification unit 114 notifies the acquired acceleration information from the communication unit 15 to the management device 20 via the network.

  The communication unit 25 of the management device 20 receives the acceleration information transmitted from the first terminal device 10a and the acceleration information transmitted from the second terminal device 10b. The data acquisition unit 211 acquires the received acceleration information of the two positions. The determination unit 212 generates acceleration transition data of the driver position based on the acceleration information from the first terminal device 10a, and generates acceleration transition data of the conductor position based on the acceleration information from the second terminal device 10b.

  The determination unit 212 compares the acceleration transition data of the driver position when the generated bus 1 curves with the acceleration transition data of the conductor position. Based on the comparison result, the determination unit 212 can identify the relative positional relationship between the driver position and the conductor position within the vehicle.

  If the determination unit 212 determines that the driver 4 is not seated in the driver's seat, the determination unit 212 displays an alert message on the display unit 23. An alert sound may be output from a speaker (not shown). Thereby, the operator of the operation monitoring center 2 can recognize that an abnormality has occurred in the vehicle.

  FIG. 16 is a flowchart showing a flow of position determination processing by the first terminal apparatus 10a, the second terminal apparatus 10b, and the management apparatus 20 according to the eighth embodiment. The data acquisition unit 111 of the first terminal device 10a acquires acceleration information output from the acceleration detection unit 14 carried by the driver 4a (S80). The data notification unit 114 transmits the acceleration information to the management device 20 via the communication unit 15 (S81). This acceleration information transmission process is continued until the acceleration transmission function is turned off (Y in S82) (N in S82).

  The data acquisition unit 111 of the second terminal device 10b acquires acceleration information output from the acceleration detection unit 14 carried in the conductor 4b (S83). The data notification unit 114 transmits the acceleration information to the management device 20 via the communication unit 15 (S84). This acceleration information transmission process is continued until the acceleration transmission function is turned off (Y in S84) (N in S84).

  The data acquisition unit 211 of the management device 20 receives the acceleration information transmitted from the first terminal device 10a and the second terminal device 10b via the communication unit 25 (S86). The determination unit 212 continuously plots the two types of acceleration information, and generates acceleration transition data of the driver position and acceleration transition data of the conductor position (S87). The determination unit 212 determines whether or not the vehicle has started a curve (S88). When the curve is started (Y in S88), the determination unit 212 compares the acceleration transition data of the driver position with the acceleration transition data of the conductor position (S89). If the positional relationship between the two is abnormal (Y in S89), the determination unit 212 displays an alert message on the display unit 23 (S899).

  As described above, according to the eighth embodiment, the acceleration transition data of the position where the driver 4a carrying the acceleration detection unit 14 is present and the acceleration transition of the conductor 4b carrying another acceleration detection unit 14 are provided. By comparing the data, the position of the driver 4a in the vehicle can be determined. Further, since the management device 20 of the operation monitoring center 2 detects an abnormality based on the acceleration information of the driver 4a and the conductor 4b periodically transmitted from the terminal device 10, it is necessary to operate the driver 4a and the conductor 4b. In addition, the operation monitoring center 2 can grasp the abnormality in the vehicle. In addition, since the data detected in the same environment is not compared with the reference data, noise due to environmental factors is canceled out, and more accurate determination is possible. Further, since it is not necessary to execute the acceleration transition data generation process and the acceleration transition data comparison process on the terminal device 10 side, the amount of calculation can be reduced as compared with the sixth embodiment. Further, since the transmission of acceleration information is not the transmission of video data, the communication data amount is small and the communication load can be suppressed.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to combinations of the respective constituent elements and processing processes, and such modifications are also within the scope of the present invention. is there.

  In the above embodiment, the bus 1 is assumed as an example of a vehicle having a large inner wheel difference. Moreover, it is applicable not only to a crew member but the position determination of the child who sits in the fixed position, and a passenger.

  1 bus, 2 operation monitoring center, 3 GPS satellite, 4, 4a driver, 4b conductor, 5 operation monitoring system, 10 terminal device, 10a first terminal device, 10b second terminal device, 11 control unit, 111 data acquisition unit , 112 determination unit, 113 abnormality notification unit, 114 data notification unit, 12 storage unit, 121 reference data holding unit, 13 GPS reception unit, 14 acceleration detection unit, 15 communication unit, 20 management device, 21 control unit, 211 data acquisition Unit, 212 determination unit, 22 storage unit, 221 reference data holding unit, 23 display unit, 24 operation unit, 25 communication unit.

Claims (6)

A storage unit that stores movement trajectory data of a reference position in the vehicle when the vehicle curves;
An acquisition unit for acquiring position information output from a positioning sensor attached to a person in the vehicle;
The movement locus data of the position where the person is present when the vehicle is curved generated based on the acquired position information is compared with the movement locus data of the reference position to determine the position where the person is in the vehicle. A determination unit for determining;
A position determination apparatus comprising: A storage unit for storing a transition of acceleration at a reference position in the vehicle when the vehicle curves;
An acquisition unit for acquiring acceleration information output from an acceleration sensor attached to a person in the vehicle;
By comparing the transition of acceleration at the position where the person is present when the vehicle is curved based on the acquired acceleration information with the transition of acceleration at the reference position, the position of the person in the vehicle is determined. A determination unit for determining;
A position determination apparatus comprising: An operation monitoring system comprising a terminal device provided in a vehicle and a management device provided outside the vehicle,
The terminal device
An acquisition unit for acquiring position information output from a positioning sensor attached to a person in the vehicle;
A communication unit that transmits the acquired position information to the management apparatus via a network;
Have
The management device
A storage unit for storing movement trajectory data of a reference position in the vehicle when the vehicle curves;
A communication unit for receiving position information transmitted from the terminal device;
The movement locus data of the position where the person is present when the vehicle is curved generated based on the received position information is compared with the movement locus data of the reference position to determine the position where the person is in the vehicle. A determination unit for determining;
An operation monitoring system comprising: An operation monitoring system comprising a terminal device provided in a vehicle and a management device provided outside the vehicle,
The terminal device
An acquisition unit for acquiring acceleration information output from an acceleration sensor attached to a person in the vehicle;
A communication unit that transmits the acquired acceleration information to the management device via a network;
Have
The management device
A storage unit for storing a transition of acceleration at a reference position in the vehicle when the vehicle curves;
A communication unit that receives acceleration information transmitted from the terminal device;
By comparing the transition of acceleration at the position where the person is present when the vehicle curves generated based on the received acceleration information with the transition of acceleration at the reference position, the position of the person in the vehicle is determined. A determination unit for determining;
An operation monitoring system comprising: Obtaining position information output from a positioning sensor attached to a person in the vehicle;
The movement trajectory data of the position where the person is present when the vehicle curves generated based on the acquired position information and the movement trajectory data of the reference position in the vehicle when the vehicle registered in advance is curved. In comparison, determining the position of the person in the vehicle;
A position determination method comprising: Obtaining acceleration information output from an acceleration sensor associated with a person in the vehicle;
Transition of acceleration at the position where the person is present when the vehicle is curved generated based on the acquired acceleration information and transition of acceleration at a reference position in the vehicle when the vehicle is registered in advance In comparison, determining the position of the person in the vehicle;
A position determination method comprising:

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