Kabushiki Kaisha Toshiba

Toshiba Engineering Corporation

Koichi Hirooka

Yutaka Iino

Masato Shibuya

Yoshitaka Kobayashi

Hisashi Kobayashi

Isao Koga

According to one embodiment, a water demand optimization system includes a management terminal, a measuring apparatus, a demand information generating unit and a water-supply control apparatus. The management terminal drives customer equipment, which performs an operation using water, in a time zone in which a power unit rate is low. The measuring apparatus measures an amount of water used in a dwelling unit. The demand information generating unit generates water demand based on the amount of water. The water-supply control apparatus controls a pump in a manner to meet water demand and to minimize a treatment cost in a water purification plant and a cost for conveyance of clear water with reference to a variation in the power unit rate.

Water demand optimization system, control system and program

To exercise control so that, when power is restored in the case of there having been a prower cut, the motor does not run simultaneously with other devices which reqire large amounts of power when starting to run. This invention there is provided improved freezer control unit, which exercise to ccntrol by providing power cut detector 10, which detects that the power source which drives freezer 5 has undergone a power cut, and stopping the signal of signal holding circuit 4, which outputs the `Run` signal, by the signal of this power cut detector 10 when a power cut occurs so that freezer 5 does not restart automatically when power is restored.

Freezer control unit

Growing community of inventors

Kanagawa-ken, Japan

Koichi Hirooka