Denso Corporation

Tohoku University

Toyota Tsusho Corporation

Akira Miki

Toru Awashima

Hirofumi Yamamoto

Shunsuke Takahashi

Shinichirou Taguchi

Masayoshi Terabe

Masayuki Ohzeki

Wongpaisarnsin Goragot

Shiowattana Dungjade

Hirotaka Irie

An ising solver system that searches an optimal route of a vehicle from plural routes passing through plural locations. In the ising solver system, the search of the optimal route uses a Hamiltonian. The Hamiltonian includes an equation representing an interaction between Quadratic Unconstrained Binary Optimization (QUBO) variables depending on a relation between a departure location and an arrival location or capacitated variable of the ising solver. The capacitated variable corresponds to one of the QUOBO variables and includes a variable constraint, and the location-to-location travel step number corresponds to an accumulated movement time of the vehicle.

Ising solver system

An optimum route of multiple mobile objects is estimated by: generating a time-series route candidate of a shortest route for each mobile object; generating a time-series route candidate of a detour route for each mobile object; calculating route assignment evaluation values for the shortest route and the detour route for each mobile object; calculating travel distance evaluation values for the shortest route and the detour route for each mobile object; calculating a route collision evaluation value of a combination for the shortest route and the detour route for each mobile object; and comparing a total value of the route assignment evaluation value, the travel distance evaluation value, and the route collision evaluation value for combinations of the time-series route candidates of the mobile objects, and estimating one of the combinations of the time-series route candidates of the mobile objects as the optimum route.

Route estimation system, route estimation method and non-transitory computer-readable storage medium for the same

A measurement apparatus measuring a flight time of a search wave corresponding to a time after the search wave is emitted and before a reflected wave is received is provided. The measurement apparatus includes a transceiver, a memory portion, a sampling portion, a measurement portion, and a determination portion. The transceiver emits the search wave and receives the reflected wave. The sampling portion generates a sampling data and causes the memory portion to store the sampling data. The sampling portion includes a first processing unit and a second processing unit. The first processing unit causes the memory portion to store the sampling data as a first signal data. The second processing unit causes the memory portion to store the sampling data as a second signal data. The measurement portion measures the flight time and generates a measurement value of the flight time. The determination portion determines a sampling period.

Measurement apparatus

Growing community of inventors

Kariya, Japan

Akira Miki