Method and apparatus for determining hardness of raw water of water softening device

An apparatus for determining hardness of raw water of a water softening device, comprising:

• an obtaining device for obtaining a correspondence between a geographical area and the hardness of raw water;
• and
• a determining device for determining target hardness of raw water of the water softening device based on a target geographical area where the water softening device is located and the correspondence,
• wherein the correspondence is obtained by detecting hardness of raw water of respective geographical areas, and associating each of the respective geographical areas with a detection result of the hardness of raw water corresponding to each of the respective geographical areas,
• wherein the determining device is configured to:
• determine, in accordance with a determination that no hardness of raw water matched with the target geographical area is included in the correspondence, a first geographical area closest to the target geographical area from the correspondence;
• determine first hardness of raw water corresponding to a first geographical area from the correspondence based on the first geographical area;
• and
• assign the first hardness of raw water to the target hardness of raw water.

A computer program product, having a computer program, wherein the computer program, when executed by a processor, causes the processor to perform the method for determining hardness of raw water of a water softening device, which causes the processor to:

• obtain a correspondence between a geographical area and the hardness of raw water;
• and
• determine target hardness of raw water of the water softening device based on a target geographical area where the water softening device is located and the correspondence,
• wherein the correspondence is obtained by detecting hardness of raw water of respective geographical areas and associating each of the respective geographical areas with a detection result of the hardness of raw water corresponding to each of the respective geographical areas,
• wherein determining target hardness of raw water of the water softening device based on a target geographical area where the water softening device is located and the correspondence comprises:
• determining, in accordance with a determination that no hardness of raw water matched with the target geographical area is included in the correspondence, a first geographical area closest to the target geographical area from the correspondence;
• determining first hardness of raw water corresponding to a first geographical area from the correspondence based on the first geographical area;
• and
• assigning the first hardness of raw water to the target hardness of raw water.