JP2007088707A - Method of turning on power - Google Patents

Method of turning on power Download PDF

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JP2007088707A
JP2007088707A JP2005273665A JP2005273665A JP2007088707A JP 2007088707 A JP2007088707 A JP 2007088707A JP 2005273665 A JP2005273665 A JP 2005273665A JP 2005273665 A JP2005273665 A JP 2005273665A JP 2007088707 A JP2007088707 A JP 2007088707A
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function
power
main power
power supply
data sequence
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Yuichiro Yamazawa
祐一郎 山澤
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Canon Inc
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Canon Inc
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

<P>PROBLEM TO BE SOLVED: To prevent all devices on a LAN from starting up when turning on the power of an indefinite number of devices having a WOL function by magic packets (by designating a broadcast address), and to improve power saving. <P>SOLUTION: A function that a user wishes to use is designated for turning on power selectively (1). A device itself is allowed to have a mechanism of two-stage activation(2). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

特定のネットワークパケット受信時に電源を投入する機能（例えばＷＯＬ（Ｗａｋｅ ｕｐ Ｏｎ ＬＡＮ））を持つ複合機の電源投入方法に関する。   The present invention relates to a power-on method of a multifunction peripheral having a function of turning on power when receiving a specific network packet (for example, WOL (Wake up On LAN)).

近年、オフィス等においては、ＬＡＮ（Ｌｏｃａｌ Ａｒｅａ Ｎｅｔｗｏｒｋ）上でデータ共有を行うことが広く普及している。ＬＡＮにはコンピュータのみならず、プリンタ、スキャナ、複合機等の周辺機器を接続し共有することも行われており、コンピュータからこれら周辺機器の操作をＬＡＮ経由で行うことができるのが一般的である。   In recent years, in offices and the like, data sharing on a LAN (Local Area Network) has become widespread. In addition to computers, peripheral devices such as printers, scanners, and multi-function peripherals are connected to and shared with the LAN, and these peripheral devices can generally be operated from the computer via the LAN. is there.

コンピュータや周辺機器の中には、節電のため、時間経過等によって、自動的に主電源をオフにする機構を持つ装置が存在する。従来、主電源がオフになったコンピュータや周辺機器を再び起動するには、キーボードやパネル等を使用者が直接操作する必要があったが、ＬＡＮ接続が一般的になってきた昨今では、主電源がオフになっているコンピュータや周辺機器が、特殊なネットワークパケットを受信することで電源を投入する機構、いわゆるＷＯＬ（Ｗａｋｅ ｕｐ Ｏｎ ＬＡＮ）機能を持つ装置が登場している。   Some computers and peripheral devices have a mechanism for automatically turning off the main power supply over time to save power. Conventionally, in order to restart a computer or peripheral device whose main power has been turned off, it has been necessary for a user to directly operate a keyboard, a panel, and the like. Devices that have a so-called WOL (Wake up On LAN) function have appeared, in which a computer or peripheral device whose power is turned off receives a special network packet to turn on the power.

装置の電源を投入するためのこのような特殊なネットワークパケットは、いわゆるマジックパケットと呼ばれ、主電源がオフの場合でも装置のＬＡＮコントローラは通電状態でネットワークパケットを監視している。そして、ある特定のデータシーケンスがネットワークパケット内に検知できた場合に装置の電源制御部に信号を送って主電源を投入する仕組みになっている。ここで特定のデータシーケンスとは、同期ストリームである６バイトのＦＦ（１６進数）に続き、ＬＡＮボードが固有に持つ物理アドレス、すなわちＭＡＣ（Ｍｅｄｉａ Ａｃｃｅｓｓ Ｃｏｎｔｒｏｌ）アドレスと呼ばれる数値が１６回繰り返されたものである。主電源がオフになっている装置がネットワークパケット内に自己のＭＡＣアドレスを含んだ上記データを検知した場合、主電源が投入される。ＭＡＣアドレスは、各ＬＡＮボード固有のものでも、既定のブロードキャストアドレスやマルチキャストアドレスでも構わない。
特開２００２−２８７９３６号公報 Such a special network packet for turning on the device is called a so-called magic packet, and the LAN controller of the device monitors the network packet in an energized state even when the main power is off. When a specific data sequence is detected in the network packet, a signal is sent to the power control unit of the apparatus to turn on the main power. Here, the specific data sequence is a 16-byte FF (hexadecimal number) that is a synchronous stream, and a physical address inherent to the LAN board, that is, a numerical value called a MAC (Media Access Control) address is repeated 16 times. Is. When a device whose main power is turned off detects the above data including its own MAC address in a network packet, the main power is turned on. The MAC address may be unique to each LAN board, or may be a predetermined broadcast address or multicast address.
JP 2002-287936 A

しかしながら、特定の装置の電源を投入するためには、その装置のＬＡＮボードのＭＡＣアドレスを事前に知っていなければならず、また、ブロードキャストアドレスを指定すると、意図しない装置の電源が投入されてしまう結果となり、節電効果が低下してしまう。   However, in order to power on a specific device, it is necessary to know the MAC address of the LAN board of that device in advance, and if a broadcast address is specified, the power of an unintended device is turned on. As a result, the power saving effect is reduced.

本発明は以上の問題に鑑みてなされたものであり、ＭＡＣアドレスを事前に知らなくとも、特定の装置に対し選択的に電源を投入したり、装置の起動状態に段階を設けることによって、使用者の利便性と節電効果の両立を図ることのできる電源投入方法の提供を目的とする。   The present invention has been made in view of the above problems, and can be used by selectively turning on a specific device or providing a stage in the startup state of a device without knowing the MAC address in advance. It aims at providing the power-on method which can aim at coexistence of a user's convenience and a power-saving effect.

上記の目的を達成するため、請求項１の発明は、データシーケンスに利用者が利用したい機能の情報を含ませ、ＬＡＮボードは複合機が有する機能を情報として保持し、データシーケンスに含まれた、利用したい機能の情報を参照して、複合機が有する機能であれば主電源を投入するよう電源制御部に信号を送り、前記複合機が有しない機能であれば主電源を投入しないことを特徴とする。   In order to achieve the above object, according to the first aspect of the present invention, information on a function that a user wants to use is included in the data sequence, and the LAN board holds the function of the multifunction peripheral as information and is included in the data sequence. Referring to information on the function to be used, a signal is sent to the power control unit to turn on the main power if the function is possessed by the multifunction device, and the main power is not turned on if the function is not possessed by the multifunction device. Features.

また、請求項２の発明は、ＬＡＮボードが第一のデータシーケンスが含まれたネットワークパケット受信時に中央処理装置に電源を投入するよう前記電源制御部に信号を送り、前記中央処理装置は前記ＬＡＮボードを通じて受信した第二のデータシーケンスが含まれたネットワークパケット受信時に周辺装置に電源を投入するよう前記電源制御部に信号を送ることを特徴とする。   According to a second aspect of the present invention, when the LAN board receives a network packet including the first data sequence, it sends a signal to the power supply control unit to turn on the power to the central processing unit. When the network packet including the second data sequence received through the board is received, a signal is sent to the power control unit to turn on the peripheral device.

本発明によれば、ＭＡＣアドレスを事前に知らなくとも、特定の装置に対し選択的に電源を投入したり、装置の起動状態に段階を設けることによって、使用者の利便性と節電効果の両立に寄与することができる。   According to the present invention, both the convenience of the user and the power saving effect can be achieved by selectively turning on a specific device without providing the MAC address in advance or by providing a stage in the device activation state. Can contribute.

以下、図を参照しながら本発明の実施形態について説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、本発明にかかる第一の実施例における複合機の構成の一例を示す図である。ＬＡＮボード１０１はネットワークパケットの送受信を行い、主電源１０３がオフの場合でも待機用電源１０４によって通電される。電源制御部１０２は電源供給のオンオフ切替を行う。中央処理装置１０６は例えばＭＰＵ形式のマイクロチップであり、主電源１０３からの電源供給により駆動し、メモリ１０５、操作パネル１０７、プリントエンジン１０８、スキャンエンジン１０９、ハードディスク１１０を制御する。主電源１０３がオフの状態からの電源投入は、利用者がコンピュータなどを同じＬＡＮに接続し、特定のデータシーケンスを含んだネットワークパケットをこの複合機に対して送信することにより行う。   FIG. 1 is a diagram showing an example of the configuration of a multifunction machine according to the first embodiment of the present invention. The LAN board 101 transmits and receives network packets and is energized by the standby power supply 104 even when the main power supply 103 is off. The power control unit 102 switches power supply on and off. The central processing unit 106 is, for example, an MPU-type microchip, and is driven by power supply from the main power supply 103 to control the memory 105, the operation panel 107, the print engine 108, the scan engine 109, and the hard disk 110. When the main power supply 103 is turned off, the user turns on the power by connecting a computer or the like to the same LAN and transmitting a network packet including a specific data sequence to the multifunction device.

図２は、本発明にかかるネットワークパケットの一例を示す図である。２０１はネットワークパケット全体を表す。送信元アドレス、受信先アドレス、データ、ＣＲＣ（Ｃｙｃｌｉｃ Ｒｅｄｕｎｄａｎｃｙ Ｃｈｅｃｋ＝巡回冗長検査）のストリームで構成される。ここで送信元アドレス、受信先アドレスとは、ＭＡＣアドレスを指す。２０２は、２０１に示すデータを詳細に表したものである。同期ストリーム、ＭＡＣアドレスの１６回繰り返し、および機能情報のストリームで構成される。機能情報には、利用者が利用したい機能を例えばビット列で記述する。   FIG. 2 is a diagram showing an example of a network packet according to the present invention. 201 represents the entire network packet. It consists of a stream of a transmission source address, a reception destination address, data, and CRC (Cyclic Redundancy Check). Here, the transmission source address and the reception destination address indicate a MAC address. 202 shows the data shown in 201 in detail. It consists of a synchronization stream, a MAC address repeat 16 times, and a function information stream. In the function information, a function that the user wants to use is described in, for example, a bit string.

図３は、ＬＡＮボード１０１が内部に保持する、この複合機が有する機能の情報の一例である。ここでは、コピー、プリンタ、スキャナの機能は有するが、ファクスの機能は備えていないことを表している。   FIG. 3 is an example of information on the functions of the multifunction peripheral that the LAN board 101 holds inside. Here, it shows that it has functions of a copy, a printer, and a scanner, but does not have a fax function.

図４は、主電源オフ時のＬＡＮボード１０１の処理手順の一例である。   FIG. 4 is an example of a processing procedure of the LAN board 101 when the main power is off.

４０１で起動要求パケットを受信したことを判断すると、その内容を解析し、４０２で特定データシーケンスの有無を判定する。４０３で自分宛のパケット、すなわち、２０２のＭＡＣアドレスが自己のＭＡＣアドレスと一致した場合は無条件に４０７において主電源を起動する。自己のＭＡＣアドレスではないと判定された場合は４０４においてブロードキャストアドレスかどうかを判定する。ブロードキャストアドレスである場合は、４０５、４０６においてネットワークパケットに含まれる、利用者が利用したい機能の情報が、自己の持つ機能に含まれるかどうかを比較する。利用者が利用したい機能を有していると判定された場合は４０７に進み、主電源が起動される。この処理手順によって、利用者がＭＡＣアドレスを知らなくとも、利用したい機能の指定を行えば、その機能を有する複合機のみ主電源が投入される。   If it is determined in 401 that the activation request packet has been received, the contents are analyzed, and in 402, the presence or absence of a specific data sequence is determined. If the packet addressed to itself, that is, the MAC address of 202 matches with its own MAC address in 403, the main power supply is unconditionally activated in 407. If it is determined that it is not its own MAC address, it is determined in 404 whether or not it is a broadcast address. If the address is a broadcast address, 405 and 406 compare whether the information on the function that the user wants to use included in the network packet is included in the function that the user has. If it is determined that the user has a function that the user wants to use, the process proceeds to 407, and the main power supply is activated. If the user designates a function to be used without knowing the MAC address by this processing procedure, the main power supply is turned on only for the multifunction machine having that function.

図５は、本発明にかかる第二の実施例における複合機の構成の一例を示す図である。ＬＡＮボード５０１はネットワークパケットの送受信を行い、主電源５０３がオフの場合でも待機用電源５０４によって通電される。電源制御部５０２は電源供給のオンオフ切替を行う。中央処理装置５０６は例えばＭＰＵ形式のマイクロチップであり、主電源５０３からの電源供給により駆動し、メモリ５０５、操作パネル５０７、プリントエンジン５０８、スキャンエンジン５０９、ハードディスク５１０を制御する。また、装置稼動中における、ＴＣＰ／ＩＰパケットなど通常の通信内容の解析は中央処理装置５０６で行う。このときＬＡＮボード５０１は自己宛のパケットのみを中央処理装置５０６に渡し、自己宛ではないパケットは破棄する。自己周辺電源５１１は、例えばプリンタエンジンのヒータの電源など、補助的な電源を供給する。主電源５０３がオンの場合でも周辺電源５１１はオフの状態を保つことができ、例えば中央処理装置５０６が稼動中の場合でもプリントエンジン５０８の駆動が必要ない場合などには節電効果をもたらすことができる。主電源５０３がオフの状態からの電源投入は、利用者がコンピュータなどを同じＬＡＮに接続し、特定のデータシーケンスを含んだネットワークパケットをこの複合機に対して送信することにより行う。   FIG. 5 is a diagram showing an example of the configuration of the multifunction machine according to the second embodiment of the present invention. The LAN board 501 transmits and receives network packets and is energized by the standby power supply 504 even when the main power supply 503 is off. The power control unit 502 performs power supply on / off switching. The central processing unit 506 is an MPU type microchip, for example, which is driven by power supply from the main power supply 503 and controls the memory 505, the operation panel 507, the print engine 508, the scan engine 509, and the hard disk 510. The central processing unit 506 analyzes normal communication contents such as TCP / IP packets while the apparatus is operating. At this time, the LAN board 501 passes only packets addressed to itself to the central processing unit 506, and discards packets not addressed to itself. The self-peripheral power supply 511 supplies an auxiliary power supply such as a heater power supply of the printer engine. Even when the main power supply 503 is on, the peripheral power supply 511 can be kept off. For example, even when the central processing unit 506 is in operation, the print engine 508 need not be driven. it can. When the main power supply 503 is turned off, the user turns on the power by connecting a computer or the like to the same LAN and transmitting a network packet including a specific data sequence to the multifunction device.

図６は、主電源オフ時のＬＡＮボード５０１の処理手順の一例である。６０１で起動要求パケットを受信したことを判断すると、その内容を解析し、６０２で特定データシーケンスの有無を判定する。６０３で自分宛のパケット、すなわち、２０２のＭＡＣアドレスが自己のＭＡＣアドレスと一致した場合は無条件に６０５において主電源５０３を起動する。自己のＭＡＣアドレスではないと判定された場合は６０４においてブロードキャストアドレスかどうかを判定する。ブロードキャストアドレスである場合は、同様に６０５において主電源５０３を起動する。６０５での主電源５０３起動の際は、周辺電源５１１の起動は伴わない。   FIG. 6 is an example of the processing procedure of the LAN board 501 when the main power is off. If it is determined at 601 that the activation request packet has been received, the content is analyzed, and at 602, the presence or absence of a specific data sequence is determined. When the packet addressed to itself, that is, the MAC address of 202 matches with its own MAC address at 603, the main power supply 503 is activated unconditionally at 605. If it is determined that it is not its own MAC address, it is determined in 604 whether it is a broadcast address. If the address is a broadcast address, the main power supply 503 is activated at 605 in the same manner. When the main power source 503 is activated at 605, the peripheral power source 511 is not activated.

図７は、主電源５０３投入後の中央処理装置５０６における処理の一例である。７０１でパケット受信したらその内容を解析し、例えば７０２のように印刷要求である場合は７０３に進む。７０３で周辺電源５１１がオフである場合には７０４で起動処理を行う。   FIG. 7 is an example of processing in the central processing unit 506 after the main power supply 503 is turned on. When a packet is received at 701, the contents are analyzed, and if the request is a print request such as 702, the process proceeds to 703. If the peripheral power supply 511 is off at 703, the activation process is performed at 704.

以上の処理により、主電源オフ時にはＬＡＮボード側の処理により主電源が投入されて中央処理装置が起動し、稼動時に例えば印刷要求のようにさらに周辺電源の起動を要する場合にのみ、中央処理装置の指示により周辺電源の起動処理が行われるという二段階の電源起動処理を行うため、ＷＯＬ機能による電源投入時は本稼動時ほど多くの電源を必要とせず、節電効果が期待できる。   With the above processing, the central processing unit is activated only when the main power is turned on by the processing on the LAN board side when the main power is turned off and the central processing unit is activated. Therefore, when the power is turned on by the WOL function, more power is not required as in the actual operation, and a power saving effect can be expected.

本発明にかかる第一の実施例における複合機の構成の一例を示す図。1 is a diagram illustrating an example of a configuration of a multifunction machine according to a first embodiment of the present invention. 本発明にかかるネットワークパケットの一例を示す図。The figure which shows an example of the network packet concerning this invention. 複合機が有する機能の情報の一例を示す図。FIG. 3 is a diagram illustrating an example of function information included in a multifunction peripheral. 主電源オフ時のＬＡＮボードの処理手順の一例を示す図。The figure which shows an example of the processing procedure of the LAN board at the time of main power-off. 本発明にかかる第二の実施例における複合機の構成の一例を示す図The figure which shows an example of a structure of the multifunctional device in 2nd Example concerning this invention. 主電源オフ時のＬＡＮボードの処理手順の一例を示す図。The figure which shows an example of the processing procedure of the LAN board at the time of main power-off. 主電源投入後の中央処理装置における処理の一例を示す図The figure which shows an example of the process in the central processing unit after main power activation

符号の説明Explanation of symbols

１０１ ＬＡＮボード
１０２ 電源制御部
１０３ 主電源
１０４ 待機用電源
１０５ メモリ
１０６ 中央処理装置
１０７ 操作パネル
１０８ プリントエンジン
１０９ スキャンエンジン
１１０ ハードディスク 101 LAN board 102 power supply control unit 103 main power supply 104 standby power supply 105 memory 106 central processing unit 107 operation panel 108 print engine 109 scan engine 110 hard disk

Claims (2)

特定のデータシーケンスが含まれたネットワークパケットを受信することによって主電源を投入する機能を持つネットワーク接続装置および電源制御部を備えた複合機において、前記データシーケンスは利用者が利用したい機能の情報を含み、前記ネットワーク接続装置は前記複合機が有する機能を情報として保持し、前記利用したい機能の情報を参照して、前記複合機が有する機能であれば主電源を投入するよう電源制御部に信号を送り、前記複合機が有しない機能であれば主電源を投入しないことを特徴とする電源投入方法。   In a multifunction peripheral having a network connection device having a function of turning on the main power by receiving a network packet including a specific data sequence and a power control unit, the data sequence includes information on a function that the user wants to use. The network connection device holds the function of the multifunction device as information, and refers to the information of the function to be used, and signals the power control unit to turn on the main power if the function is possessed by the multifunction device. And the main power is not turned on if the multifunction device does not have the function. 特定のデータシーケンスが含まれたネットワークパケットを受信することによって中央処理装置に電源を投入する機能を持つネットワーク接続装置および電源制御部を備えた複合機において、前記ネットワーク接続装置は第一のデータシーケンスが含まれたネットワークパケット受信時に前記中央処理装置に電源を投入するよう前記電源制御部に信号を送り、前記中央処理装置は前記ネットワーク接続装置を通じて受信した第二のデータシーケンスが含まれたネットワークパケット受信時に周辺装置に電源を投入するよう前記電源制御部に信号を送ることを特徴とする電源投入方法。   In a multifunction peripheral having a network connection device having a function of turning on the central processing unit by receiving a network packet including a specific data sequence and a power control unit, the network connection device is a first data sequence. A network packet including a second data sequence received through the network connection device by sending a signal to the power supply control unit to turn on the central processing unit when receiving the network packet including the network packet. A power-on method, characterized in that a signal is sent to the power control unit to power on a peripheral device upon reception.
JP2005273665A 2005-09-21 2005-09-21 Method of turning on power Withdrawn JP2007088707A (en)

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Cited By (5)

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JP2009302769A (en) * 2008-06-11 2009-12-24 Konica Minolta Business Technologies Inc Information processor, control method of information processor and information processing program
JP2011041225A (en) * 2009-08-18 2011-02-24 Sony Corp Power supply unit, processing system, and id allocation method
US8259319B2 (en) 2009-01-27 2012-09-04 Brother Kogyo Kabushiki Kaisha Communication device
US8261115B2 (en) 2009-03-26 2012-09-04 Brother Kogyo Kabushiki Kaisha Sub-processor configured to execute a specific program stored in the first memory or second memory on behalf of the main processor
JP2014133361A (en) * 2013-01-10 2014-07-24 Seiko Epson Corp Image forming apparatus, power supply control device, and control method of power supply control device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009302769A (en) * 2008-06-11 2009-12-24 Konica Minolta Business Technologies Inc Information processor, control method of information processor and information processing program
JP4623143B2 (en) * 2008-06-11 2011-02-02 コニカミノルタビジネステクノロジーズ株式会社 Information processing apparatus, information processing apparatus control method, and information processing program
US8384935B2 (en) 2008-06-11 2013-02-26 Konica Minolta Business Technologies, Inc. Information processing device for reproducing contents information
US8259319B2 (en) 2009-01-27 2012-09-04 Brother Kogyo Kabushiki Kaisha Communication device
US8261115B2 (en) 2009-03-26 2012-09-04 Brother Kogyo Kabushiki Kaisha Sub-processor configured to execute a specific program stored in the first memory or second memory on behalf of the main processor
JP2011041225A (en) * 2009-08-18 2011-02-24 Sony Corp Power supply unit, processing system, and id allocation method
JP2014133361A (en) * 2013-01-10 2014-07-24 Seiko Epson Corp Image forming apparatus, power supply control device, and control method of power supply control device

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