Abstract: A positioning system uses radio wave strengths of radio waves received from first and second wireless transmission terminals movable through an indoor space to locate positions of the terminals. The positioning system includes plural wireless receivers disposed in the indoor space, and a position estimating component that estimates the positions of the terminals based on positions of the receivers using first and second position estimation data in a limited range of the reception data generatable by the receivers. The receivers detect the radio wave strengths and can generate reception data including information relating to the radio wave strengths. At least one of the position estimating component and the receivers acquires the first and second position estimation data limited to first and second set regions suited to the first and second wireless transmission terminals from the reception data receivable relating to the first and second wireless transmission terminals, respectively.

Abstract: A positioning system uses radio wave strengths of radio waves received from first and second wireless transmission terminals movable through an indoor space to locate positions of the terminals. The positioning system includes plural wireless receivers disposed in the indoor space, and a position estimating component that estimates the positions of the terminals based on positions of the receivers using first and second position estimation data in a limited range of the reception data generatable by the receivers. The receivers detect the radio wave strengths and can generate reception data including information relating to the radio wave strengths. At least one of the position estimating component and the receivers acquires the first and second position estimation data limited to first and second set regions suited to the first and second wireless transmission terminals from the reception data receivable relating to the first and second wireless transmission terminals, respectively.

Abstract: An apparatus includes a plurality of devices and is configured to enable a specified function of a first device among the plurality of devices in response to a first license key distributed by a licenser. The apparatus includes a key input unit and a key generation unit. The key input unit allows the first license key to be input. A second license key is generated based on the first license key and specific information relating to a second device among the plurality of devices. The apparatus further enables a specified function of the second device that is the same as the specified function of the first device in response to the second license key.

Abstract: A group management apparatus is connected to first to nth management apparatus that collectively manage a plurality of installation equipment belonging to first to nth installation equipment groups, and collectively manages the first to nth installation equipment groups. One or more interrogation processors repeatedly carry out interrogation processing for the first to nth management apparatus regarding operating conditions of the installation equipment collectively managed by the first to nth management apparatus. Preferably, an allocation unit allocates different interrogation processors to the first to nth management apparatus, respectively, one at a time, and allocates other allocation processors to the first to nth management apparatus according to an interrogation processing state of the installation equipment by at least one of the interrogation processors.