JP2011254432A - Power source management apparatus, power supply control system, power supply control method, and power supply control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably supply power to a terminal device installed in a locatable manner.SOLUTION: A power source management server 100 comprises: an asset management unit which identifies, on the basis of connection state information indicating a connection state at the port of a power feeder apparatus 11, the connection destination port of a power receiving apparatus 22 having connected to the port; a network retrieval unit which identifies, when the power feeder apparatus 11 detects disconnection at the connection port, the power receiving apparatus 22 having performed the disconnection and the connection port, and stores them as objects to be retrieved; and a power source control unit which identifies, on the basis of a linkup signal transmitted from a power feeder apparatus 12 when the power receiving apparatus 22 connects with the connection port, the power receiving apparatus 22 as the object to be retrieved, and performs control to start supply of power at the connection port which the identified power receiving apparatus 22 has connected with.

Description

  The present invention relates to a system that manages a power supply apparatus that supplies power to a power receiving apparatus, and more particularly to a power supply control system that controls a power supply operation performed by the power supply apparatus.

  Computer terminals, servers, LAN devices, etc. installed as corporate LAN nodes consume a large amount of power as a whole, and thus are required to save power, especially in the time periods when they are not used. Therefore, it is required to set the power supply of the device to the off state.

In contrast, for example, using PoE (Power over Ethernet) (Ethernet is a registered trademark), power is supplied from the power supply device (PoE power supply device) to the power reception device (PoE power reception device) via the Ethernet (registered trademark). By performing the above, a power supply system that efficiently supplies power to each device constituting the network is standardized by IEEE 802.3af and IEEE 802.3at.
For example, in PoE IEEE 802.3at, standardization is progressing so that power of 30 W (watt) per port can be supplied, and it is expected that PoE use in more types of devices will progress in the future.

The PoE power receiving device includes various devices such as a wireless access point, a network camera, and an IP phone. By operating and controlling the PoE power feeding device, the power supply remote control of the PoE power receiving device can be performed via a communication line. Can be done.
In addition, a power supply control system capable of schedule-controlling power supply for each port by setting on the PoE power supply apparatus side is used.

  However, in the PoE power supply control system, since the setting is generally performed in units of ports of the PoE power supply apparatus, for example, when the PoE power supply apparatus is moved, the port of the newly connected PoE power supply apparatus is accurately grasped. There is an inconvenience that the power control as intended cannot be performed unless the setting for the port is performed.

Further, in the company, for example, one IP telephone is usually assigned to each employee, and therefore, there are cases where the IP telephone is moved to a new floor or the like when personnel changes.
For this reason, it may be necessary for the network administrator to accurately grasp all the relocation destinations (connection locations of the PoE power supply devices) and change the settings of each port of the PoE power supply devices that are the connection destinations in some cases. .

  In particular, in order to accurately manage which port of the PoE power receiving device is connected to the PoE power receiving device during the transfer work of the PoE power receiving device, that is, the port used for PoE in a large-scale network such as a corporate network, There is an inconvenience such as enormous man-hours and labor.

  Further, as described above, when the PoE power receiving device is moved, the network administrator must change the setting on the PoE power feeding device side again according to the transfer destination of the PoE power receiving device. If the power is not grasped, the inconvenience that the power control of the PoE power receiving apparatus cannot be performed as intended by the user may occur.

As a related technique for this, by detecting the physical position information of the power receiving device and the user who uses this power receiving device, and finally creating a presence table indicating where the user (and the power receiving device) is located A system that manages and controls power supply to a power receiving apparatus based on this is disclosed (Patent Document 1).
Further, as this related technique, a system that efficiently manages network cable connection when a plurality of different server computers are mounted in a rack is disclosed (Patent Document 2).

  In addition, as a related technique of the above contents, the power control method for various power receiving devices is remotely managed via a network, and the power receiving device can be operated from the user's control switch, for example, by an operation equivalent to turning off the fluorescent light. Discloses a technique for controlling the power supply operation (power ON / OFF) (Patent Document 3).

JP 2007-335923 A JP 2007-221761 A JP 2009-199455 A

  However, according to the contents of the related art described in Patent Documents 1 and 2 above, it is impossible to accurately detect the port of the mobile connection destination of the PoE power receiving apparatus, so that power is reliably supplied to the PoE power receiving apparatus of the movement destination. The disadvantage of not being able to do so can occur.

  Further, even in the related art described in Patent Document 3, since the movement and reconnection of the power receiving apparatus are not taken into consideration, the power control when the movement is performed by the administrator is the power control procedure at the destination or the location. There is a disadvantage that it becomes necessary to re-register, and enormous effort is required.

[Object of invention]
The present invention improves the inconveniences of the related art, and provides a power management device, a power supply control system, a power supply control method, and a power supply control program for reliably supplying power to a power receiving terminal installed so as to be relocatable The purpose is to provide

  In order to achieve the above object, the present invention has a configuration according to the present invention.

  The power management apparatus according to the present invention is a power management apparatus that controls the power supply operation of the power feeding apparatus performed on the power receiving terminal based on a preset control policy, and for identifying each of the power receiving terminals in advance. A terminal management information storage unit that stores registered terminal identification information, and connection state information that indicates a connection state in a connection port of the power supply apparatus is acquired from the power supply apparatus, and a connection destination of the power receiving terminal based on the connection state information The connection destination specifying unit for specifying the connection port of the power supply apparatus, and when the power supply apparatus detects a connection disconnection in the connection port, the connection disconnection is performed based on a link down signal transmitted from the power supply apparatus A disconnected terminal specifying unit that specifies a power receiving terminal and the connection port, and stores the power receiving terminal as a search target in association with the terminal identification information. When the power supply apparatus detects a new connection to the connection port, the power supply apparatus and the connection port that are connection destinations of the connection terminal that has performed the new connection are specified based on a link-up signal transmitted from the power supply apparatus The new connection detection specifying unit and the power at the connection port of the specified power supply apparatus when the connection terminal is determined based on the link-up signal and the connection terminal is the power receiving terminal registered in advance as the search target The power supply control part which performs control which starts supply is provided.

  The power supply management system according to the present invention includes a power supply device that supplies power to a power receiving terminal connected to a connection port provided in advance, and a power supply operation in the power supply device according to a preset control policy. A power supply control system comprising: a power management device that performs control based on a link down signal including information relating to a connection terminal that has performed the connection disconnection when the power supply device detects a connection disconnection in the connection port A link-down signal transmission unit for transmitting to the power management server, and a link-up signal for notification of new connection including information on a connection terminal that has performed the new connection when a new connection to the connection port is detected. A link-up signal transmission unit that transmits to a power management server, and the power management device identifies each of the power receiving terminals in advance. A terminal management information storage unit that stores the terminal identification information registered in the terminal, and connection state information indicating a connection state at a connection port of the power supply apparatus is acquired from the power supply apparatus and the connection destination of the power receiving terminal based on the connection state information A connection destination specifying unit that specifies a connection port of the power supply apparatus, and a connection terminal and the connection port that perform the connection disconnection based on the link down signal when a connection disconnection is detected in the connection port And a disconnected terminal specifying unit that stores the power receiving terminal as a search target in association with the terminal identification information, and a connection that performs the new connection based on the link-up signal when a new connection to the connection port is detected. A new connection detection specifying unit for specifying the power supply apparatus and connection port to which the terminal is connected, and the connection based on the link-up signal A power supply control unit that performs control of starting power supply in the connection port of the specified power supply apparatus when the terminal is identified and the connection terminal is the power receiving terminal registered in advance as the search target It is a feature.

  The power supply management method according to the present invention includes a power supply device that supplies power to a power receiving terminal connected to a connection port provided in advance, and a power supply operation in the power supply device according to a preset control policy. A power supply system including a power management server controlled based on a power supply control method for controlling power supply to the power supply device, wherein the power management server is connected to a connection port of the power supply device. Is obtained from the power supply apparatus, the connection port of the power supply apparatus that is the connection destination of the power receiving terminal is specified based on the connection state information, and the power supply apparatus detects a disconnection in the connection port. The power receiving terminal and the connection port that have performed the disconnection based on a link down signal transmitted from the power feeding device. The power receiving terminal is stored in association with terminal identification information registered in advance for identifying the power receiving terminal as a search target, and when the power feeding apparatus detects a new connection to the connection port, The power receiving terminal in which the power supply device and the connection port that are connection destinations of the connection terminal that has performed the new connection are specified based on the transmitted link-up signal, and the connection terminal detected by the power supply device is stored as the search target In this case, the power supply operation for the power receiving terminal is started.

  The power supply control program according to the present invention includes a power supply apparatus that supplies power to a power receiving terminal connected to a connection port provided in advance, and a power supply operation in the power supply apparatus according to a preset control policy. A power supply system including a power management server for controlling the power supply based on a power supply control program for controlling power supply to the power supply device, the connection state indicating a connection state in a connection port of the power supply device A connection destination specifying function for acquiring information from the power supply apparatus and specifying a connection port of the power supply apparatus that is a connection destination of the power receiving terminal based on the connection state information, and the power supply apparatus has detected a disconnection in the connection port A power receiving terminal that has performed the disconnection based on a link down signal transmitted from the power supply apparatus, and A disconnection terminal specifying function for specifying a connection port and storing the received terminal as a search target in association with terminal identification information registered in advance for identification of the received power terminal; and A new connection detection specifying function for specifying the power supply device and connection port that are connection destinations of the connection terminal that has made the new connection based on a link-up signal transmitted from the power supply device when detected, and the power supply device detects When the connected terminal is the power receiving terminal stored as the search target, the computer is caused to execute a power resupply start function for starting the power supply operation for the power receiving terminal.

  As described above, the present invention provides a connection destination specifying unit that specifies a connection destination port of a power receiving terminal connected to the port based on connection state information indicating a connection state in the port of the power supply device, and the connection of the power supply device in the connection port. When a disconnection is detected, a disconnected terminal identifying unit that identifies the power receiving device and connection port that have performed the disconnection and stores them as a search target, and a link that is transmitted from the power feeding device when the power receiving device is connected to the connection port By specifying a power receiving terminal as a search target based on an up signal and having a power supply control unit that performs control to start power supply in a connection port connected to the identified power receiving terminal, the network can be relocated. Power management device, power supply control system, and power supply that accurately supply power based on the power control policy to the connected power receiving terminal It is possible to provide a control method, and a power supply control program.

1 is a schematic block diagram illustrating an embodiment of a power supply control system according to an embodiment of the present invention. It is a block diagram which shows one internal structure of the trial calculation information management and power supply control program part in the electric power supply control system shown in FIG. It is a flowchart which shows the operation | movement process step at the time of link down trap reception in the electric power supply control system shown in FIG. It is a flowchart which shows the operation | movement process step in the transfer of the PoE power receiving apparatus in the electric power supply control system shown in FIG. It is a flowchart which shows the operation | movement process step at the time of link up trap reception in the electric power supply control system shown in FIG. It is explanatory drawing which shows an example of the asset information table in the electric power supply control system shown in FIG. It is explanatory drawing which shows an example of the power supply part information table in the electric power supply control system shown in FIG. It is a flowchart which shows the operation | movement step of the registration process of the power supply control policy information in the electric power supply control system shown in FIG. It is explanatory drawing which shows an example of the power supply control policy table in the electric power supply control system shown in FIG. It is explanatory drawing which shows an example of the power supply control table in the electric power supply control system shown in FIG. It is a flowchart which shows the operation | movement step of the power supply control process in the electric power supply control system shown in FIG.

[Embodiment]
Next, embodiments for carrying out the present invention will be described with reference to the drawings.

As shown in FIG. 1, the power supply control system according to the embodiment of the present invention is connected via a network line (Ethernet line), and supplies PoE power to each PoE power receiving apparatus using PoE. PoE power receiving devices 21, 22, and 23 that are connected to the devices 11, 12, the PoE power feeding device 11 via a network line (Ethernet line) and receive power supply from the PoE power feeding device 11, and the PoE power feeding device 11 includes a power management server (power management device) 100 that is connected to 11 and 12 via a network and controls a power supply operation (power supply operation) in the PoE power supply devices 11 and 12 based on a preset power supply policy. Have
Further, as shown in FIG. 1, the power supply control system includes a DHCP server 200 that assigns IP addresses to the PoE power supply apparatuses 11 and 12 and the PoE power reception apparatuses 21, 22, and 23 via the network. .

  Furthermore, in the present embodiment, the power management server is also used when the PoE power receiving device (IP telephone) 22 is disconnected from the PoE power feeding device 11 and relocated to the PoE power feeding device 12 (FIG. 1). By stably controlling the power feeding operation of the PoE power feeding devices 11 and 12 by 100, stable power supply to the PoE power receiving device 22 is realized.

  Here, the PoE power supply apparatuses 11 and 12 are specifically assumed to be PoE-compatible switching hubs each including an MIB. The PoE power receiving devices 21, 22, and 23 are wireless access points, IP phones, and network cameras, respectively.

  As shown in FIG. 2, the power management server 100 has an asset information management / power control program unit 101 that controls the power supply operation (power supply operation) in the PoE power supply apparatuses 11 and 12 via the network. As shown in FIG. 2, the information management / power control program unit 101 includes an event receiving unit 102 that receives SNMP Traps sent from the PoE power supply apparatuses 11 and 12 via the network, and a PoE power supply apparatus from the event receiving unit 102. The asset information management unit 103 that obtains information (linkDown Trap (link-down trap) or linkUp Trap (link-up trap)) indicating the link state at the ports 11 and 12 and the MAC in each PoE power receiving device (21 to 23) Stores and stores asset information such as addresses The management database 104, the network search unit 105 that acquires and analyzes information in the MAC address table stored in the MIB provided in each of the PoE power supply apparatuses 11 and 12, and the power status of each of the PoE power reception apparatuses 21 to 23 ( Power control policy database (DB) 107 that stores power policy information indicating information on ON / OFF), and schedule control of power on / off states in each of the PoE power receiving apparatuses 21 to 23 with respect to the power control policy DB 107 The power supply control unit 106 performs processing for registering, updating, and deleting information.

  The event receiving unit 102 receives the SNMP Trap sent from the PoE power supply apparatus, and notifies the asset information management unit 103 of the information on the linkDown Trap and the linkUp Trap.

  The asset information management unit 103 performs a process of registering, updating, or deleting asset information including the MAC address of the PoE power receiving device and information indicating the port number of the power supply port as the power supply unit in the PoE power receiving device in the asset information management database. A port information registration function for performing port information search, and a port information search function for searching for port information.

The network search unit 105 transmits an SNMP Get issued to the PoE power supply apparatus based on an instruction from the asset information management unit, and acquires information of the MAC address table stored in the MIB of the PoE power supply apparatus. Has an information acquisition function.
Here, SNMP Get indicates message information for acquiring information of the MAC address table stored in the MIB.
Further, the network search unit 105 has a power supply device table information analysis function for analyzing the contents of the acquired MAC address table and notifying the asset information management unit 103 of the analysis result.

The power control unit 106 registers, updates, or deletes information related to schedule control of power ON / OFF of each PoE power receiving device (power control schedule information) in the power control policy database, It has a schedule information search function for searching for power control schedule information.
Further, the power control unit 106 has a port operation control function for controlling start or stop (ON / OFF) of a port power supply operation in the PoE power supply apparatus based on an instruction from the asset information management unit 103.

  The power supply control policy DB 107 uses a general SNMP manager processing technique to detect a device that implements the Power Ethernet MIB (RFC3621) on a preset network, and from the Power Ethernet MIB of the detected device. It has a power supply unit information table generation function that collects information (port information) of power supply ports used in PoE and generates a power supply unit information table (FIG. 7) based on the port information.

As described above, in this embodiment, the power management server 101 detects the relocation destination of the PoE power receiving device by managing the information on the power supply port of the PoE power receiving device as part of the asset information of the PoE power receiving device. , Update information on the power supply port.
Therefore, it is possible to reliably supply power to the transferred PoE power receiving device (22) based on the power control policy.

  Normally, the PoE power receiving device connected to the port set to the state where the PoE power supply is turned off does not turn on (because no linkUp Trap is generated). In addition, by setting to perform control for starting the power supply operation of the specified empty port, it is possible to detect the port connected to the PoE power receiving apparatus.

  Furthermore, in this embodiment, the registration of the power control policy (control policy) of the PoE power receiving apparatus is performed in correspondence with each PoE power receiving apparatus, not on the PoE power feeding apparatus side (port). For this reason, based on a power supply control table (FIG. 10), it is possible to perform power supply control based on a preset power supply control policy for each transferred PoE power receiving apparatus.

[Description of Operation of Embodiment]
Next, the overall operation of the above embodiment will be described.

  The asset information management / power supply control program unit 101 acquires connection state information indicating a connection state in a connection port of the PoE power supply apparatus from the power supply apparatus, and PoE power supply that is a connection destination of the IP telephone 22 based on the connection state information. The connection port of the device 11 is specified (connection destination specifying step).

  Next, when the PoE power supply apparatus 11 detects a disconnection at the connection port, the IP telephone 22 that has disconnected and its connection port are identified based on the link down signal transmitted from the PoE power supply apparatus 11, and this The IP telephone 22 is stored as a search target in association with terminal identification information registered in advance for identifying the power receiving terminal (disconnected terminal specifying step).

  Next, the asset information management / power supply control program unit 101 is the connection destination of the connection terminal that has made a new connection based on the link-up signal transmitted when the PoE power supply apparatus 12 detects a new connection to the connection port. The power supply device and the connection port are specified (new connection detection specifying step), and when the detected terminal is the IP telephone 22 registered in advance as a search target, the power supply operation at the port connected to the IP telephone 22 is started. (Power resupply start process).

  Here, the execution contents of the connection destination specifying step, the disconnected terminal specifying step, the new connection detection specifying step, and the power resupply starting step may be programmed and executed by a computer.

  Next, the operation of this embodiment will be described in detail.

  In the present embodiment, it is assumed that the PoE power receiving devices (21 to 23) operate by receiving power supply using PoE from the PoE power feeding device 11. Here, the PoE power receiving device 22 disconnects the connection to the PoE power feeding device 11 (link breakage), and then the PoE power receiving device 22 connects to another PoE power feeding device 12 to supply power from the PoE power feeding device 12 (power supply). )

  Hereinafter, the operation when the PoE power receiving device 22 is moved to the PoE power feeding device 12 (port 1) as shown in FIG. 1 will be described with reference to flowcharts (FIGS. 3, 4, and 5).

First, when the connection of the PoE power receiving apparatus 22 to the PoE power supplying apparatus 11 is disconnected, the PoE power supply apparatus 11 generates an SNMP Trap as a message indicating that a link down has occurred, and this SNMP Trap is generated. It transmits to the power management server 100 (step S30).
Next, the event receiving unit 102 of the asset information management / power supply control program unit 101 receives the SNMP Trap and confirms the message content (source IP address and port number) (step S31).

Here, when it is confirmed that the message content is linkDown Trap, the event receiving unit 102 determines the source IP address of the received message based on the IP header and PDU (Protocol Data Unit) included in the SNMP Trap. , And port information where linkDown has occurred is acquired.
Here, it is assumed that the source IP address acquired by the event receiving unit 102 is “1.1.1.1” and the port number is “2”.

  Next, the event receiving unit 102 notifies the asset information management unit 103 of the source IP address (1.1.1.1) of the received message and information (port number “2”) indicating the port where linkDown has occurred. To do.

The asset information management unit 103 searches the asset information management database (DB) 107 based on the notified IP address and port number, and acquires the corresponding power supply unit information table (FIG. 7) (step S32).
Here, the asset information management unit 103 checks whether or not the PoE power receiving apparatus set for the power supply unit ID (here, “2”) is included in the power supply unit information table (step S33: applicable). Do you have any information?)

  The power supply unit information table (FIG. 7) stored in the asset information management database (DB) 107 is a device that implements the Power Ethernet MIB (RFC3621) from the network using a general SNMP manager processing technique. It is generated based on the information of the power supply port used by PoE collected from the Power Ethernet MIB of the detected device.

Here, when a corresponding PoE power receiving device (assumed to be the IP telephone 22 in this case) is found in the power supply unit information table (yes: step S33), the asset information management unit 103 determines that this PoE power feeding device 12 Asks the power supply control unit 106 whether the power supply is turned off (shut off) based on a preset power supply control policy. (Step S34)
On the other hand, when the corresponding PoE power receiving apparatus (IP telephone 22) is not found in the power supply unit information table (No: Step S33), the process is terminated.

  Next, the power control unit 106 confirms the information stored in the power control policy DB 107 and notifies the asset information management unit 103 of information related to the power receiving state in the PoE power receiving device 22.

  Here, when the PoE power receiving device 22 is not performing power control (that is, not powering off) (No: Step S34), the asset information management unit 103 selects the corresponding PoE power receiving device ( The value of the power supply unit ID of the IP telephone 22) is set to “0”, and the PoE power receiving apparatus (IP telephone) 22 is registered as a connection destination search target (connection destination search target) (step S35).

  On the other hand, when the PoE power receiving device 22 performs power control (that is, the power is turned off) (Yes: Step S34), the PoE power receiving device (IP telephone 22) supplies power from the PoE power feeding device. It is determined that the terminal is in the blocked state, and the process is terminated without registering the IP telephone 22 as a connection destination search target (connection destination search target).

  Next, an operation process when the PoE power receiving device 22 is moved in this embodiment will be described based on the flowchart of FIG.

  When the PoE power receiving device 22 to be searched is registered (step S40), the asset information management unit 103 waits for a predetermined time after setting the PoE power receiving device (IP telephone) 22 as a search target (step S41: standby for a predetermined time). ).

When the SNMP Trap indicating linkUp is not received for a certain period of time (here, the search target remains 1), the asset information management unit 103 has a search target value indicating the number of PoE power receiving apparatuses registered as search targets of 1 or more (Step S42).
When the search target value is 1 or more (Yes: Step S42), the asset information management unit 103 searches for an ID that is not registered in the power supply unit ID column of the asset information table (Step S43).
The ID that is not registered in the power supply unit ID column indicates empty port information indicating a power supply unit (port) that is not used in the PoE power receiving apparatus.

When the corresponding ID is confirmed, the asset information management unit 103 transmits a command message for starting the power supply operation to the power control unit 106, and the power control unit 106 responds to the command message to manage the asset. The power supply unit information (empty port information) is acquired from the power supply unit information table of the information DB 104, and the PoE power supply apparatus including the free port indicated by the power supply unit information is specified.
Next, the power supply control unit 106 performs control to start the power supply operation in the vacant port (set the power supply operation state to ON) by transmitting a control message to the specified PoE power supply device. (Step S44).

At this time, the event receiving unit 102 monitors whether or not an SNMP Trap (link up trap) indicating linkUp is detected due to the activation of the power supply operation in the empty port (step S45).
Here, when the event receiving unit 102 detects a link-up trap, that is, when an SNMP Trap indicating linkUp is received (Yes: Step S45), the connection of the PoE power receiving apparatus (here, the IP telephone 22) is detected. The process in the case of the failure is executed (to FIG. 5).

  In addition, when an SNMP Trap indicating a preset fixed time linkUp is not detected (No: Step S45), the power supply control unit 106 transmits a message for stopping power supply operation to the corresponding port (empty port). As a result, the power supply operation in the empty port is stopped (step S47).

  Note that the SNMP Trap (link-up trap) occurrence confirmation (step S45) indicating linkUp may be a setting that is continuously performed until the number of search targets becomes zero.

  Next, the asset information management unit 103 checks whether or not the search target value indicating the number of PoE power receiving devices registered as search targets is 0 (step S48). If the search target value is not 0 (No: step) S48) As described above, the operation state of the asset information management / power supply control program unit 101 is set to a standby state for a predetermined time (to step S41). On the other hand, if the search target value is 0 (Yes: Step S48), the PoE power receiving device search process is terminated.

  Next, the operation of this embodiment when the event reception unit 102 detects the occurrence of a link-up trap will be described based on the flowchart of FIG.

  First, when the event receiving unit 102 receives an SNMP Trap (step S50: detection of occurrence of a link-up trap) and confirms that this SNMP Trap is a linkUp Trap, the event receiving unit 102 receives the IP of the SNMP Trap. The source IP address is obtained from the header, and the port information in which linkUp is generated from the PDU (Protocol Data Unit) is obtained (in this example, the source IP address is “2.2.2.2”, the port number). "1") and notifies the asset information management unit 103 (step S51).

  At this time, since the PoE power receiving apparatus 22 makes an IP address allocation request to the DHCP server 200, the MAC address of the PoE power receiving apparatus 22 is registered in the information of the port 1 of the MAC address table of the PoE power feeding apparatus 12.

The asset information management unit 103 confirms again that the number of search targets (the number of PoE power receiving devices with power supply unit ID = 0) is 1 or more (step S52), and if the number of search targets is 1 or more (yes Step S52), instructing the network search unit 105 to acquire the MAC address table.
On the other hand, when the number of search targets is not 1 or more ((No: step S52)), the network search unit 105 ends the PoE power receiving device search process.

  Next, the network search unit 105 acquires a MAC address table from the MIB information of the PoE power supply apparatus 12 based on the transmission source IP address (step S53).

  Further, the network search unit 105 checks whether the MAC address of the PoE power receiving device 22 to be searched is included in the information of the MAC address table acquired in advance (step S54), and the result (check result) is displayed. The asset information management unit 103 is notified.

When the MAC address of the PoE power receiving device 22 to be searched is included in the acquired MAC address table (Yes: Step S54), the asset information management unit 103 stores information on the power supply unit ID of the PoE power receiving device 22 in the asset information table. Process to update. It is assumed that the number of search objects is reduced by -1 by this process (step S55).
Here, in this embodiment, the number of search targets is set to 0, and the network search unit 105 ends the PoE power receiving device search process.
When the MAC address of the PoE power receiving device 22 is not included in the information of the MAC address table (No: Step S52), the network search unit 105 ends the PoE power receiving device search process.

  The operation of the process for registering the power control policy information (registration process) will be described with reference to the flowchart of FIG.

  First, the system administrator controls the asset information management / power control program 101 to control information such as the time when the power state is set to ON, the time when the power state is set to OFF, and the application date (weekdays or holidays). It is input (registered) as policy input information (step S80).

  The power control unit 106 registers this input information in the power control policy table and generates (issues) a control policy ID corresponding to the registered information (step S81).

  Next, the power control unit 106 determines which PoE power receiving devices (21 to 23) to which the registered power control policy is assigned based on input information by the system administrator, and determines the determined power control. By registering the policy assignment result in the power control table, the power control policy information is registered and set (applied) (step S82).

  Next, power control processing when the control policy ID in FIG. 9 is “1” will be described based on the flowchart in FIG. 11.

  First, the power supply control unit 106 that has detected that it has become 7:00 on weekdays searches for the PoE power receiving devices (21 to 23) to which the control policy ID = 1 is applied based on the power supply control table. (Step S111).

  Here, the power supply control unit 106 notifies the asset information management unit 103 of the PoE power receiving device name detected in the search (in this example, the PoE power receiving devices 21 and 22).

  The asset information management unit 103 acquires the corresponding power supply unit ID (power supply unit information) based on the notified PoE power receiving device name (step S112: here, the power supply unit IDs 1 and 2 in FIG. 6).

Next, the asset information management unit 103 notifies the power supply control unit 106 of information on the power supply unit ID (= 1, 2) in the power supply unit information table.
The power supply control unit 106 starts the power supply operation by rewriting the MIB for the ports 1 and 2 of the PoE power supply apparatus 11 having the acquired IP address “1.1.1.1” using the SNMP Set. Is performed (step S113).

In addition, the asset information management unit 103 and the power supply control unit 106 that have detected that the time has reached 23:00 on a weekday are controlled to stop the power supply operation by performing the same processing as described above. I do.
As shown in FIG. 9, it is assumed that the power control process (FIG. 11) is performed in the same manner as described above even when the control policy IDs are 2 and 3.

  As described above, in the present embodiment, the power management server 100 manages information on the power supply port of the PoE power supply device (power supply unit) as part of the asset information (power supply unit) of the PoE power reception device (asset information table). ), It is possible to quickly detect a new connection destination of the PoE power receiving apparatus, and thereby, the port information for power supply in the PoE power receiving apparatus can be accurately updated and set. Power can be reliably supplied to the power receiving device.

Regarding the above-described embodiment, the main points of the new technical contents are summarized as follows.
In addition, although a part or all of said embodiment is put together as follows as a novel technique, this invention is not necessarily limited to this.

(Appendix 1)
A power management device that controls a power supply operation of a power supply device to be performed on a power receiving terminal based on a preset control policy,
A terminal management information storage unit for storing terminal identification information registered in advance for identification of each of the power receiving terminals;
A connection destination specifying unit that acquires connection state information indicating a connection state in a connection port of the power supply device from the power supply device and specifies a connection port of the power supply device that is a connection destination of the power receiving terminal based on the connection state information;
When the power supply apparatus detects a connection disconnection at the connection port, the power receiving terminal and the connection port that have performed the connection disconnection are specified based on a link down signal transmitted from the power supply apparatus, and the power reception terminal is searched. A disconnected terminal specifying unit that stores the object in association with the terminal identification information;
When the power supply device detects a new connection to the connection port, the new power supply device and the connection port that are connection destinations of the connection terminal that has made the new connection based on a link-up signal transmitted from the power supply device A connection detection specific part;
Based on the link-up signal, the connection terminal is determined, and when the connection terminal is the power receiving terminal registered in advance as the search target, control for starting power supply at the connection port of the specified power feeding apparatus is performed. A power management apparatus comprising a power supply control unit.

(Appendix 2)
In the power management device according to attachment 1,
The link-up signal is generated by connecting the power receiving terminal to the empty connection port by specifying an empty connection port based on the connection state information and performing control to periodically start power supply in the empty connection port. A power management apparatus comprising a power supply activation connection detection unit for detecting

(Appendix 3)
In the power management device according to attachment 1,
The power supply control unit includes a time control function for controlling power supply activation and power supply suppression operation from the power supply device based on a power supply setting time set in advance corresponding to the power receiving terminal as the control policy. A featured power management device.

(Appendix 4)
A power supply comprising: a power supply device that supplies power to a power receiving terminal connected to a connection port provided in advance; and a power management device that controls a power supply operation in the power supply device based on a preset control policy A control system,
The power supply device
A link-down signal transmission unit that transmits a link-down signal including information related to the connection terminal that has performed the connection disconnection to the power management server when a connection disconnection is detected in the connection port, and a new connection to the connection port is detected A link-up signal transmission unit that transmits a link-up signal for notification of new connection including information related to the connection terminal that has performed the new connection to the power management server,
The power management device is
A terminal management information storage unit for storing terminal identification information registered in advance for identification of each of the power receiving terminals;
A connection destination specifying unit that acquires connection state information indicating a connection state in a connection port of the power supply device from the power supply device, and specifies a connection port of the power supply device that is a connection destination of the power receiving terminal based on the connection state information;
When a connection disconnection is detected in the connection port, the power receiving terminal that has performed the connection disconnection and the connection port are specified based on the link down signal, and the power reception terminal is associated with the terminal identification information as a search target. A disconnected terminal identifying unit for storing
A new connection detection identifying unit that identifies the power supply device and the connection port that are connection destinations of the connection terminal that has performed the new connection based on the link-up signal when a new connection to the connection port is detected;
Based on the link-up signal, the connection terminal is determined, and when the connection terminal is the power receiving terminal registered in advance as the search target, control for starting power supply at the connection port of the specified power feeding apparatus is performed. A power supply control system comprising: a power supply control unit.

(Appendix 5)
In the power supply control system according to attachment 4,
The power management device specifies a free connection port based on the connection state information and performs control to periodically start power supply in the free connection port, thereby connecting the power receiving terminal to the free connection port. A power supply control system comprising a power supply activation connection detection unit that detects the occurrence of the link-up signal.

(Appendix 6)
The power supply control system according to claim 4, wherein
The power supply control unit includes a time control function for controlling power supply activation and power supply suppression operation from the power supply device based on a power supply setting time set in advance corresponding to the power receiving terminal as the control policy. A featured power supply control system.

(Appendix 7)
A power supply comprising a power supply device that supplies power to a power receiving terminal connected to a connection port provided in advance, and a power management server that controls a power supply operation in the power supply device based on a preset control policy A power supply control method for controlling power supply to the power supply apparatus in the system,
The power management server acquires connection state information indicating a connection state in a connection port of the power supply apparatus from the power supply apparatus, and determines a connection port of the power supply apparatus that is a connection destination of the power receiving terminal based on the connection state information. Identify,
When the power feeding device detects a disconnection at the connection port, the power receiving terminal and the connection port that have performed the connection disconnection are identified based on a link down signal transmitted from the power feeding device, and the power receiving terminal is searched for And stored in association with terminal identification information registered in advance for identification of the power receiving terminal,
When the power supply device detects a new connection to the connection port, the power supply device and the connection port that are connection destinations of the connection terminal that has performed the new connection based on a link-up signal transmitted from the power supply device are identified,
A power supply control method, wherein the power supply operation for the power receiving terminal is started when the connection terminal detected by the power supply apparatus is the power receiving terminal stored as the search target.

(Appendix 8)
A power supply comprising a power supply device that supplies power to a power receiving terminal connected to a connection port provided in advance, and a power management server that controls a power supply operation in the power supply device based on a preset control policy A power supply control program for controlling power supply to the power supply apparatus in the system,
A connection destination specifying function for acquiring connection state information indicating a connection state in a connection port of the power supply apparatus from the power supply apparatus and specifying a connection port of the power supply apparatus that is a connection destination of the power receiving terminal based on the connection state information; ,
When the power supply apparatus detects a connection disconnection at the connection port, the power receiving terminal and the connection port that have performed the connection disconnection based on a link down signal transmitted from the power supply apparatus are identified and the power reception terminal is searched for A disconnecting terminal specifying function for storing in association with terminal identification information registered in advance for identification of the power receiving terminal,
When the power supply device detects a new connection to the connection port, the new power supply device and the connection port that are connection destinations of the connection terminal that has made the new connection based on a link-up signal transmitted from the power supply device Connection detection specific function,
When the connection terminal detected by the power supply device is the power receiving terminal stored as the search target, a power resupply start function for starting the power supply operation for the power receiving terminal;
A power supply control program for causing a computer to execute.

  The present invention can be effectively applied to a PoE power supply network system that performs power supply using PoE between node terminals constituting a large-scale computer network such as a corporate LAN.

11, 12 PoE power supply device 21, 22, 23 PoE power receiving device 100 power management server 101 power control program unit 102 event receiving unit 103 asset information management unit 104 asset information management database 105 network search unit 106 power control unit 107 power control policy database 200 DHCP server

Claims (8)

A power management device that controls a power supply operation of a power supply device to be performed on a power receiving terminal based on a preset control policy,
A terminal management information storage unit for storing terminal identification information registered in advance for identification of each of the power receiving terminals;
A connection destination specifying unit that acquires connection state information indicating a connection state in a connection port of the power supply device from the power supply device and specifies a connection port of the power supply device that is a connection destination of the power receiving terminal based on the connection state information;
When the power supply apparatus detects a connection disconnection at the connection port, the power receiving terminal and the connection port that have performed the connection disconnection are specified based on a link down signal transmitted from the power supply apparatus, and the power reception terminal is searched. A disconnected terminal specifying unit that stores the object in association with the terminal identification information;
When the power supply device detects a new connection to the connection port, the new power supply device and the connection port that are connection destinations of the connection terminal that has made the new connection based on a link-up signal transmitted from the power supply device A connection detection specific part;
Based on the link-up signal, the connection terminal is determined, and when the connection terminal is the power receiving terminal registered in advance as the search target, control for starting power supply at the connection port of the specified power feeding apparatus is performed. A power management apparatus comprising a power supply control unit. The power management device according to claim 1,
The link-up signal is generated by connecting the power receiving terminal to the empty connection port by specifying an empty connection port based on the connection state information and performing control to periodically start power supply in the empty connection port. A power management apparatus comprising a power supply activation connection detection unit for detecting The power management device according to claim 1,
The power supply control unit includes a time control function for controlling power supply activation and power supply suppression operation from the power supply device based on a power supply setting time set in advance corresponding to the power receiving terminal as the control policy. A featured power management device. A power supply comprising: a power supply device that supplies power to a power receiving terminal connected to a connection port provided in advance; and a power management device that controls a power supply operation in the power supply device based on a preset control policy A control system,
The power supply device
A link-down signal transmission unit that transmits a link-down signal including information related to the connection terminal that has performed the connection disconnection to the power management server when a connection disconnection is detected in the connection port, and a new connection to the connection port is detected A link-up signal transmission unit that transmits a link-up signal for notification of new connection including information related to the connection terminal that has performed the new connection to the power management server,
The power management device is
A terminal management information storage unit for storing terminal identification information registered in advance for identification of each of the power receiving terminals;
A connection destination specifying unit that acquires connection state information indicating a connection state in a connection port of the power supply device from the power supply device, and specifies a connection port of the power supply device that is a connection destination of the power receiving terminal based on the connection state information;
When a connection disconnection is detected in the connection port, the power receiving terminal that has performed the connection disconnection and the connection port are specified based on the link down signal, and the power reception terminal is associated with the terminal identification information as a search target. A disconnected terminal identifying unit for storing
A new connection detection identifying unit that identifies the power supply device and the connection port that are connection destinations of the connection terminal that has performed the new connection based on the link-up signal when a new connection to the connection port is detected;
Based on the link-up signal, the connection terminal is determined, and when the connection terminal is the power receiving terminal registered in advance as the search target, control for starting power supply at the connection port of the specified power feeding apparatus is performed. A power supply control system comprising: a power supply control unit. The power supply control system according to claim 4, wherein
The power management device specifies a free connection port based on the connection state information and performs control to periodically start power supply in the free connection port, thereby connecting the power receiving terminal to the free connection port. A power supply control system comprising a power supply activation connection detection unit that detects the occurrence of the link-up signal. The power supply control system according to claim 4, wherein
The power supply control unit includes a time control function for controlling power supply activation and power supply suppression operation from the power supply device based on a power supply setting time set in advance corresponding to the power receiving terminal as the control policy. A featured power supply control system. A power supply comprising a power supply device that supplies power to a power receiving terminal connected to a connection port provided in advance, and a power management server that controls a power supply operation in the power supply device based on a preset control policy A power supply control method for controlling power supply to the power supply apparatus in the system,
The power management server acquires connection state information indicating a connection state in a connection port of the power supply apparatus from the power supply apparatus, and determines a connection port of the power supply apparatus that is a connection destination of the power receiving terminal based on the connection state information. Identify,
When the power feeding device detects a disconnection at the connection port, the power receiving terminal and the connection port that have performed the connection disconnection are identified based on a link down signal transmitted from the power feeding device, and the power receiving terminal is searched for And stored in association with terminal identification information registered in advance for identification of the power receiving terminal,
When the power supply device detects a new connection to the connection port, the power supply device and the connection port that are connection destinations of the connection terminal that has performed the new connection based on a link-up signal transmitted from the power supply device are identified,
A power supply control method, wherein the power supply operation for the power receiving terminal is started when the connection terminal detected by the power supply apparatus is the power receiving terminal stored as the search target. A power supply comprising a power supply device that supplies power to a power receiving terminal connected to a connection port provided in advance, and a power management server that controls a power supply operation in the power supply device based on a preset control policy A power supply control program for controlling power supply to the power supply apparatus in the system,
A connection destination specifying function for acquiring connection state information indicating a connection state in a connection port of the power supply apparatus from the power supply apparatus and specifying a connection port of the power supply apparatus that is a connection destination of the power receiving terminal based on the connection state information; ,
When the power supply apparatus detects a connection disconnection at the connection port, the power receiving terminal and the connection port that have performed the connection disconnection based on a link down signal transmitted from the power supply apparatus are identified and the power reception terminal is searched for A disconnecting terminal specifying function for storing in association with terminal identification information registered in advance for identification of the power receiving terminal,
When the power supply device detects a new connection to the connection port, the new power supply device and the connection port that are connection destinations of the connection terminal that has made the new connection based on a link-up signal transmitted from the power supply device Connection detection specific function,
When the connection terminal detected by the power supply device is the power receiving terminal stored as the search target, a power resupply start function for starting the power supply operation for the power receiving terminal;
A power supply control program for causing a computer to execute.

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