Autonomous operation verification device and autonomous system
First Claim
1. An autonomous system of autonomous vehicles, comprising:
- a processor configured to;
measure an internal state value of a vehicle;
measure an external state of the vehicle;
set an operation-time constraint limiting a possible range that could be taken by the internal state value until a predetermined time point;
set an operation-time precondition limiting a possible range that could be taken by the external state until a predetermined time point by using the external state;
set a safety requirement constraining a relationship between the internal state and the external state;
set an expected operation for commanding an operation to be executed by the system in question;
calculate a planned operation for the purpose of achieving the expected operation;
convert all of the operation-time constraint, the operation-time precondition, the safety requirement, the expected operation, the planned operation into a constraint form with a quantifier; and
determine whether there is a satisfying solution for the constraint form with the quantifier,wherein the processor provides a satisfiability determination solution of the constraint form with the quantifier when the vehicle is operating based on the planned operation, andwherein the autonomous system further comprises a presenting device having a display screen and configured to;
illuminate an abnormality lamp in a case where there is no safety of the planned operation;
display, on the display screen, a target performing a dangerous operation violating the operation-time precondition on the screen; and
display, on the display screen, an alternative planned operation that satisfies the safety requirement under the operation-time precondition.
1 Assignment
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Accused Products
Abstract
A mechanism having an autonomous operation verification device having a function of determining satisfiability of expected operation and safety requirement under a predetermined operation-time precondition and determining occurrence possibility of hazard violating the safety requirement in a predictive manner and achieving operation safety of an autonomous system operating in an open environment is provided. A function for determining whether the expected operation and operation safety are satisfiable or not in a case where operation planning means provides a planned operation and evaluating the operation safety of the planned operation during operation is provided. Further, an autonomous system having a function of calculating an alternative operation by using the predictive determination function and recovering operation safety by avoiding the hazard is provided.
2 Citations
5 Claims
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1. An autonomous system of autonomous vehicles, comprising:
a processor configured to; measure an internal state value of a vehicle; measure an external state of the vehicle; set an operation-time constraint limiting a possible range that could be taken by the internal state value until a predetermined time point; set an operation-time precondition limiting a possible range that could be taken by the external state until a predetermined time point by using the external state; set a safety requirement constraining a relationship between the internal state and the external state; set an expected operation for commanding an operation to be executed by the system in question; calculate a planned operation for the purpose of achieving the expected operation; convert all of the operation-time constraint, the operation-time precondition, the safety requirement, the expected operation, the planned operation into a constraint form with a quantifier; and determine whether there is a satisfying solution for the constraint form with the quantifier, wherein the processor provides a satisfiability determination solution of the constraint form with the quantifier when the vehicle is operating based on the planned operation, and wherein the autonomous system further comprises a presenting device having a display screen and configured to; illuminate an abnormality lamp in a case where there is no safety of the planned operation; display, on the display screen, a target performing a dangerous operation violating the operation-time precondition on the screen; and display, on the display screen, an alternative planned operation that satisfies the safety requirement under the operation-time precondition. - View Dependent Claims (2, 3, 4, 5)
Specification