State estimation device, state estimation method, computer program, and state estimation system

Abstract

This state estimation device comprises a first acquisition unit for acquiring a result of measurement by a first sensor that is mounted to a vehicle in which a worker is on board and that measures the state of the vehicle, a second acquisition unit for acquiring a result of measurement by a second sensor that is held by the worker and that measures the state of the worker, and an estimation unit for estimating a state related to the work of the worker on the basis of the result of measurement by the first sensor and the result of measurement by the second sensor.

Claims

1. A first acquisition unit that acquires the measurement results of a first sensor mounted on a vehicle in which an operator is riding, which measures the state of the vehicle, A second acquisition unit that acquires the measurement results of a second sensor, which is a sensor held by the worker and measures the worker's state, The system includes an estimation unit that estimates the state of the worker's work based on the measurement results of the first sensor and the measurement results of the second sensor, The measurement result of the first recovery is the position of the vehicle. The measurement result of the second sensor is the position of the worker. The estimation unit is a state estimation device that estimates the state of the worker's riding in the vehicle based on changes in the distance between the vehicle and the worker.

2. The state estimation device according to claim 1, wherein the estimation unit estimates that the worker has boarded the vehicle when the distance changes from above a distance threshold to below the distance threshold, and estimates that the worker has disembarked from the vehicle when the distance changes from below the distance threshold to above the distance threshold.

3. The state estimation device is The system further includes a connection status acquisition unit that acquires the connection status via wireless communication between a communication device mounted on the vehicle and a communication device held by the worker. The state estimation device according to claim 1 or claim 2, wherein the estimation unit estimates the state of the worker getting into or out of the vehicle based on the acquired connection state.

4. A first acquisition unit that acquires the measurement result of a first sensor mounted on a vehicle in which an operator is riding, which measures the state of the vehicle, A second acquisition unit that acquires the measurement results of a second sensor, which is a sensor held by the worker and measures the worker's state, The system includes an estimation unit that estimates the state of the worker's work based on the measurement results of the first sensor and the measurement results of the second sensor, The measurement results of the second sensor include at least one of the worker's angular velocity and altitude. The estimation unit is a state estimation device that estimates the state of work or standby of the worker based on at least one measurement result of the worker's angular velocity and altitude.

5. The measurement result of the second sensor includes the worker's acceleration and altitude, The state estimation device according to claim 4, wherein the estimation unit estimates the state of work or standby of the worker based on a combination of the comparison result of the worker's acceleration and the acceleration threshold and the comparison result of the worker's altitude and the altitude threshold.

6. The state estimation device according to claim 4 or 5, wherein the estimation unit estimates the state of work or standby of the worker within a time range in which the worker is estimated to have disembarked from the vehicle.

7. The measurement result of the first sensor is the speed of the vehicle. The state estimation device according to claim 1 or claim 2, wherein the estimation unit estimates the state of movement of the worker by the vehicle based on the measurement result of the vehicle's speed.

8. The state estimation device according to claim 1 or claim 2, further comprising an analysis unit that analyzes the relationship between the delivery plan and the actual delivery results based on the state related to the worker's work estimated by the estimation unit and the vehicle delivery plan, and outputs the analysis results.

9. The state estimation device includes the step of acquiring the measurement result of a first sensor mounted on a vehicle in which an operator is riding, which measures the state of the vehicle, The state estimation device includes the step of acquiring the measurement result of a second sensor, which is a sensor held by the worker and measures the worker's state, The state estimation device includes the step of estimating a state related to the worker's work based on the measurement result of the first sensor and the measurement result of the second sensor, The measurement result of the first recovery is the position of the vehicle. The measurement result of the second sensor is the position of the worker. A state estimation method comprising the step of estimating the state, wherein the state estimation device estimates the state of the worker being in the vehicle based on a change in the distance between the vehicle and the worker.

10. A state estimation device comprising the steps of acquiring the measurement result of a first sensor mounted on a vehicle in which an operator is riding, which measures the state of the vehicle, The state estimation device includes the step of acquiring the measurement result of a second sensor, which is a sensor held by the worker and measures the worker's state, The state estimation device includes the step of estimating a state related to the worker's work based on the measurement result of the first sensor and the measurement result of the second sensor, The measurement results of the second sensor include at least one of the worker's angular velocity and altitude. A state estimation method comprising the step of estimating the state, wherein the state estimation device estimates the state of work or standby of the worker based on at least one measurement result of the worker's angular velocity and altitude.

11. Computers, A first acquisition unit that acquires the measurement results of a first sensor mounted on a vehicle in which an operator is riding, which measures the state of the vehicle. A second acquisition unit that acquires the measurement results of a second sensor, which is a sensor held by the worker and measures the worker's state, A computer program for functioning as an estimation unit that estimates the state related to the worker's work based on the measurement results of the first sensor and the measurement results of the second sensor, The measurement result of the first recovery is the position of the vehicle. The measurement result of the second sensor is the position of the worker. The estimation unit is a computer program that estimates the state of the worker's presence in the vehicle based on changes in the distance between the vehicle and the worker.

12. A computer, A first acquisition unit that acquires the measurement results of a first sensor mounted on a vehicle in which an operator is riding, which measures the state of the vehicle. A second acquisition unit that acquires the measurement results of a second sensor, which is a sensor held by the worker and measures the worker's state, A computer program for functioning as an estimation unit that estimates the state related to the worker's work based on the measurement results of the first sensor and the measurement results of the second sensor, The measurement results of the second sensor include at least one of the worker's angular velocity and altitude. The estimation unit is a computer program that estimates the worker's working or standby state based on at least one measurement result of the worker's angular velocity and altitude.

13. An on-board device installed in a vehicle in which an operator is riding, which provides measurement results of the vehicle's condition, A terminal held by the worker and providing measurement results of the worker's condition, The system includes a state estimation device that estimates the worker's work state based on measurement results provided from the in-vehicle device and the terminal, respectively. The state estimation system includes the state estimation device described in claim 1 or claim 2.

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