Abstract: A system comprising: first and second input reception devices; and a temperature detection unit for detecting a temperature inside a vehicle, wherein the first input reception device includes: a first input reception unit for receiving the input of the operation instruction by being pressed or touched, and including a first display unit for displaying information; and a control unit for controlling the operation of the operation target based on the received input of the operation instruction, a time required to start the second input reception device is longer than a time required to start the first input reception device, and the control unit causes the first display unit to display recommended operation information based on the detected temperature, and performs an operation corresponding to the recommended operation information in response to pressing or touching of the first display unit.

Abstract: Molding sand of a used greensand mold is recycled by adding water and binder to sand particles fatigued by heating applied by a molten metal during molding and segregated from vigorous molding sand not directly heated by the molten metal and mixing the refreshed molding sand particles with the vigorous molding sand.

Abstract: Salvaged foundry sand is reclaimed by introducing salvaged sand into a vacuum kneading tank, adding water and binder to the salvaged sand and kneading the salvaged sand under vacuum. A target strength value of the reclaimed sand is set and the amount of water and binder to be added to the salvaged sand on the basis of the temperature of the salvaged sand before kneading in the vacuum kneading tank so that reclaimed sand of the target strength value is obtained.