Abstract: The present invention provides a system capable of accurately monitoring each of a plurality of snowmakers of ice crushing type which are placed on a skiing ground. The system has a monitoring device, which is placed in a monitoring station of the skiing ground and is connected to each of the snowmakers for monitoring an operational state of each of the snowmakers. The system further includes an external monitoring device provided in an external monitoring station located in a remote place from skiing grounds. The external monitoring device is capable of monitoring an operational state of each of the snowmakers in a selected skiing ground, since it can be selectively connected to the monitoring device placed in each skiing ground.

Abstract: A system and method for maintaining a desirable depth of snow on a ski slope, on which a plurality of snowmaking apparatuses are stationed to produce artificial snow. The system and method obtain the position of a snow compressing vehicle, and calculate the snow depth at the point by comparing the snow compressing vehicle's position against geographical information when there is no snow. The system and method evaluate the necessity for supplementing snow at the point, and output the necessary amount of snow for the point via the snowmaking apparatuses. Based on the need for supplementing snow at each point, the system further calculates an operating rate suitable for each snowmaking apparatus to achieve optimum efficiency.

Abstract: The present invention is a system for maintaining a ski slope with a plurality of snowmaking apparatuses, comprising: a snow compressing vehicle position obtaining section for obtaining a position of a snow compressing vehicle used for maintaining the ski slope; a snow coverage calculation section for comparing the position of the snow compressing vehicle, which is obtained by the snow compressing vehicle position obtaining section, and geographical information of a snowless ski slope to thereby calculate snow coverage at each position of the ski slope; a snow supplement necessity determination section for determining snow supplement necessity for each position of the ski slope and outputting a required snow supplement amount in association with each position; and a snowmaking apparatus operating rate calculation section for calculating a required operating rate for the snowmaking apparatus based on the required snow supplement amount, which is determined by the snow supplement necessity determination section