Patent Number: 
Section: claims

1. A group management apparatus configured to manage, as a plurality of groups, numerous installation devices installed in a plurality of buildings, the group management apparatus comprising:an acquiring component configured to acquire operating data of the numerous installation devices via controllers, the operating data being indicative of at least current operating conditions, each of the current operating conditions being one of energy-intensive consumption and temperature deviation, the controllers being placed in the buildings and controlling the numerous installation devices inside the buildings;a summarizing component configured tosummarize collective operating data values of the plurality of groups of installation devices, each collective operating data value being indicative of a collective current operating condition of each respective group,compare the collective operating data values of the plurality of groups with each other, andjudge whether or not the collective operating data value of each group meets a predetermined condition, the predetermined condition being met by one of the collective operating data values of a respective group being equal to or greater than a threshold value; anda screen generating component configured to generate a screen in which results, with respect to the plurality of groups, of the collective operating data values having been summarized by the summarizing component are juxtaposed. 2. The group management apparatus according to claim 1, whereinthe summarizing component is further configured to compareindividual operating data values that are operating data values of individual installation devices belonging to single groups with individual operating data values of other groups. 3. The group management apparatus according to claim 2, whereinthe summarizing component is further configured to judge whether or not the individual operating data values meet the predetermined condition. 4. The group management apparatus according to claim 3, whereinthe summarizing component is further configured to compare, per group, the individual operating data values or the collective operating data values with a predetermined reference value, and to judge whether or not the individual operating data values or the collective operating data values meet the predetermined condition based on the comparison. 5. The group management apparatus according to claim 4, further comprisinga reference value setting component configured to set the predetermined reference value based on the operating data that have been acquired from the numerous installation devices by the acquiring component. 6. The group management apparatus according to claim 3, whereinthe screen generating component is further configured to generate a screen in which magnitude relations of installation devices meeting the predetermined condition in each of the groups can be compared. 7. The group management apparatus according to claim 6, whereinthe screen generating component is further configured to generate a screen in which specific values that are the individual operating data values of installation devices meeting the predetermined condition can be compared with overall values that are the operating data values of all installation devices. 8. The group management apparatus according to claim 7, whereinthe summarizing component is further configured to determine numbers of installation devices meeting the predetermined condition in each of the groups, andthe screen generating component is further configured to include the numbers in the screen. 9. The group management apparatus according to claim 6, whereinthe magnitude relations are displayed graphically. 10. The group management apparatus according to claim 6, whereinthe comparison of magnitude relations includes graphically juxtaposing the magnitude of a first of the collective operating data values that exceeds a threshold value against the magnitude of a second of the collective operating values indicative of total operation, the total operation including operation corresponding to collective operating data values exceeding the threshold value and operation corresponding to collective operating data values which do not exceed the threshold value. 11. The group management apparatus according to claim 2, whereinthe collective operating data values are mean values of the individual operating data values of installation devices belonging to single groups. 12. The group management apparatus according to any one of claims 2, whereinthe collective operating data values are totals of the individual operating data values of installation devices belonging to single groups. 13. The group management apparatus according to claim 2, further comprisinga classification information storage area configured to store classification information used to classify the numerous installation devices into the groups,the summarizing component being further configured to summarize the individual operating data values or the collective operating data values per each group into which the numerous installation devices have been classified by the classification information. 14. The group management apparatus according to claim 1, further comprisingan evaluation item storage area configured to store a plurality of items for evaluating the current operating conditions of the numerous installation devices,the summarizing component being further configured to evaluate the current operating conditions based on several items of the plurality of items or all items of the plurality of items, andthe screen generating component being further configured to generate a screen in which evaluation results based on the plurality of items can be checked en bloc. 15. The group management apparatus according to claim 1, wherein.the plurality of buildings are included in a single management domain. 16. A group management system configured to manage, as a plurality of groups, numerous installation devices installed in a plurality of buildings, the group management system comprising:controllers placed in the buildings and controlling the numerous installation devices installed inside the buildings; anda group management apparatus connected to the controllers and managing the numerous installation devices as groups via the controllers, the group management apparatus includingan acquiring component configured to acquire operating data of the numerous installation devices via the controllers, the operating data being indicative of at least current operating conditions, each of the current operating conditions being one of energy-intensive consumption and temperature deviation,a summarizing component configured tosummarize collective operating data values of the plurality of groups of installation devices, each collective operating data value being indicative of a collective current operating condition of each respective group,compare the collective operating data values of the plurality of groups with each other, andjudge whether or not the collective operating data value of each group meets a predetermined condition, the predetermined condition being met by one of the collective operating data values of a respective group being equal to or greater than a threshold value, anda screen generating component configured to generate a screen in which results, with respect to the plurality of groups, of the collective operating data values having been summarized by the summarizing component are juxtaposed. 17. A group management method of managing, as a plurality of groups, numerous installation devices installed in a plurality of buildings, the group management method comprising:acquiring operating data of the numerous installation devices via controllers, the operating data being indicative of at least current operating conditions, each of the current operating conditions being one of energy-intensive consumption and temperature deviation, the controllers being placed in the buildings and controlling the numerous installation devices inside the buildings;summarizing collective operating data values of the plurality of groups of installation devices, each collective operating data value being indicative of a collective current operating condition of each respective group;comparing the collective operation data values of the plurality of groups with each other;judging whether or not the collective operating data value of each group meets a predetermined condition, the predetermined condition being met by one of the collective operating data values of a respective group being equal to or greater than a threshold value; andgenerating a screen in which results, with respect to the plurality of groups, of the collective operating data values having been summarized are juxtaposed. 18. A group management program configured to be executed in a computer to manage, as a plurality of groups, numerous installation devices installed in a plurality of buildings, the group management program comprising:acquiring operating data of the numerous installation devices via controllers, the operating data being indicative of at least current operating conditions, each of the current operating conditions being one of energy-intensive consumption and temperature deviation, the controllers being placed in the buildings and controlling the numerous installation devices inside the buildings;summarizing collective operating data values that are values of the plurality of groups of installation devices, each collective operating data value being indicative of a collective current operating condition of each respective group;comparing the collective operating data values of the plurality of group with each other;judging whether or not the collective operating data value of each group meets a predetermined condition, the predetermined condition being met by one of the collective operating data values of a respective group being equal to or greater than a threshold value; andgenerating a screen in which results, with respect to the plurality of groups, of the collective operating data values having been summarized are juxtaposed.