DEVICE MANAGEMENT SYSTEM
First Claim
1. A device management system for monitoring and/or controlling a plurality of devices through a communication network, said device management system comprising:
- a plurality of terminal units being connected respectively to the devices;
a plurality of nodes being cooperative with said terminal units to construct the communication network having a logically hierarchized structure,said nodes including an superior node, an internal node connected to said superior node so as to be located in a lower hierarchy level than said superior node, and an inferior node connected to said internal node so as to be located in a lower hierarchy level than said internal node, andeach said node having an upper communication unit, a lower communication unit, and a memory, said upper communication unit being configured to communicate with said node in a high hierarchy level, said lower communication unit being configured to communicate with said node in a low hierarchy level, said memory holding management information utilized for controlling and/or monitoring the devices,whereinsaid upper communication units of the nodes respectively have upper management communication units which are configured to transmit management information to the nodes in the high hierarchy level, andsaid lower communication units of the nodes respectively having lower management communication units which are configured to transmit management information to the nodes in the low hierarchy level.
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Accused Products
Abstract
A device management system has lighting device controlling units and measurement management units, each of which is disposed in each sub area. In addition, the lighting device controlling units and the measurement management units are configured to communicate with an area unit which is disposed in each sub area. The area unit is configured to communicate with the lighting device controlling units and the measurement management units via a communication packet. The area unit further has a router which is configured to prevent the communication packet from leaking to the communication network having an upper management device in the high hierarchy level. The area unit is configured to communicate with the upper management device through the router.
23 Citations
14 Claims
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1. A device management system for monitoring and/or controlling a plurality of devices through a communication network, said device management system comprising:
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a plurality of terminal units being connected respectively to the devices; a plurality of nodes being cooperative with said terminal units to construct the communication network having a logically hierarchized structure, said nodes including an superior node, an internal node connected to said superior node so as to be located in a lower hierarchy level than said superior node, and an inferior node connected to said internal node so as to be located in a lower hierarchy level than said internal node, and each said node having an upper communication unit, a lower communication unit, and a memory, said upper communication unit being configured to communicate with said node in a high hierarchy level, said lower communication unit being configured to communicate with said node in a low hierarchy level, said memory holding management information utilized for controlling and/or monitoring the devices, wherein said upper communication units of the nodes respectively have upper management communication units which are configured to transmit management information to the nodes in the high hierarchy level, and said lower communication units of the nodes respectively having lower management communication units which are configured to transmit management information to the nodes in the low hierarchy level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A communication network device used by a device management system for monitoring and/or controlling a plurality of devices by a communication network having an high hierarchy level, a medium hierarchy level, and a low hierarchy level, said communication network device is used in the medium hierarchy level, said communication network device comprising,
an upper communication unit, a lower communication unit, and a memory, said upper communication unit is configured to communicate with the communication network device in the high hierarchy level, said lower communication unit being configured to communicate with the communication network device in the low hierarchy level, said memory storing a management information for monitoring and/or controlling the devices, wherein said upper communication unit includes an upper management communication unit being configured to communicate with the communication network in the high hierarchy level, and said lower communication unit including a lower management communication unit being configured to communicate with the communication network in the lower hierarchy level.
Specification