JP2013005935A - X-ray imaging apparatus, x-ray imaging method, and program - Google Patents

X-ray imaging apparatus, x-ray imaging method, and program Download PDF

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JP2013005935A
JP2013005935A JP2011140902A JP2011140902A JP2013005935A JP 2013005935 A JP2013005935 A JP 2013005935A JP 2011140902 A JP2011140902 A JP 2011140902A JP 2011140902 A JP2011140902 A JP 2011140902A JP 2013005935 A JP2013005935 A JP 2013005935A
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JP5917029B2 (en
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Yuichi Nishii
雄一 西井
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Canon Inc
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PROBLEM TO BE SOLVED: To detect a wired-wireless switching timing when only one side knows the other party's IP address and the connection is through a network hub.SOLUTION: The wired-wireless switching determination is performed according to the presence or absence of the network link up in an X-ray image detector, and the wired-wireless switching determination in an X-ray image reception display device is performed on a continuous packet transmission (heart beat), thereby enabling the wired-wireless switching timing detection on both sides.

Description

本発明は、Ｘ線画像検出器とＸ線画像受信表示装置とＸ線発生装置との同期を制御するＸ線同期装置とが、無線及び有線ネットワーク手段で接続されている場合に、無線と有線の切り替えを行う技術に関する。   In the present invention, when an X-ray image detector, an X-ray image reception display device, and an X-ray synchronization device that controls synchronization of the X-ray generation device are connected by wireless and wired network means, wireless and wired It is related with the technology which switches.

近年、医療分野において、Ｘ線撮影装置はデジタル化が進み、Ｘ線撮像センサフラットパネルセンサ（ＦＰＤ）にとってかわり、ＣＲＴがＤＶＩ（Digital Visual Interface）経由での高精度液晶モニタ表示にとってかわってきており撮影から表示までというフルデジタルシステムが構成されようとしている。さらに、画像データの伝送に無線が使用され、センサと表示装置との間がワイヤレスで構成される装置が登場してきている。上記のような無線システムは、架台に装着した際の無線性能劣化への対応、バッテリー切れ発生時の緊急避難手段として有線系のユニットも準備される場合がある。特許文献１〜３には、無線有線の切り替えを行う技術が開示されている。   In recent years, in the medical field, X-ray imaging apparatuses have been digitized, and instead of X-ray imaging sensors flat panel sensors (FPD), CRT has been replaced by high-precision liquid crystal monitor display via DVI (Digital Visual Interface). A full digital system from shooting to display is being constructed. Furthermore, devices that use radio for transmitting image data and are configured by wireless between a sensor and a display device have appeared. In the wireless system as described above, there is a case where a wired unit is also prepared as a means of responding to deterioration in wireless performance when mounted on a gantry and as an emergency evacuation means when a battery runs out. Patent Documents 1 to 3 disclose techniques for switching between wireless wires.

特開２００９−１５４７２１号公報JP 2009-154721 A 特開２００６−３４０７５２号公報JP 2006-340752 A 特開２００９−７７８９１号公報JP 2009-77891 A

しかしながら、通常有線ネットワークが物理的に接続されているかどうかは、ネットワークのリンクアップの有無を監視することで検知することが可能であるが、ネットワークハブを介して接続した場合は、ハブが間に中継する形になり、リンクアップで検知することができない。一方、ハートビートといわれる継続的なパケットを送信することで、接続を検知することも可能であるが、この方式は接続相手のＩＰアドレスを保持している場合のみ可能である。   However, it is usually possible to detect whether or not a wired network is physically connected by monitoring the network for link-ups. However, when connected via a network hub, the hub is in between. It will be relayed and cannot be detected by link up. On the other hand, it is possible to detect a connection by transmitting a continuous packet called a heartbeat, but this method is possible only when the IP address of the connection partner is held.

そこで、本発明の目的は、一方しか接続相手のＩＰアドレスを知らない、かつネットワークハブを介して接続されている場合に、有線無線の切り替えタイミングを検知することにある。   Therefore, an object of the present invention is to detect the timing for switching between wired and wireless when only one of the IP addresses of the connection partner is known and the connection is made via a network hub.

本発明のＸ線撮影装置は、Ｘ線を検出してＸ線画像を取得するＸ線画像検出器と、Ｘ線画像検出器から送信される画像を受信し表示するＸ線画像受信表示装置と、Ｘ線を発生させるＸ線発生装置と、前記Ｘ線画像検出器とＸ線発生装置とを同期制御するＸ線同期装置とを備えたＸ線撮影装置において、前記Ｘ線画像検出器は、送信の通信方法を無線か有線かを判定する判定部を有し、前記Ｘ線画像受信表示装置は、受信の通信方法を無線か有線かを判定する他の判定部を有し、前記各判定部は、異なる方法で無線か有線かを判定することを特徴とする。   An X-ray imaging apparatus according to the present invention includes an X-ray image detector that detects an X-ray to acquire an X-ray image, and an X-ray image reception display device that receives and displays an image transmitted from the X-ray image detector. The X-ray imaging apparatus includes an X-ray generation apparatus that generates X-rays, and an X-ray synchronization apparatus that synchronously controls the X-ray image detector and the X-ray generation apparatus. A determination unit configured to determine whether a transmission communication method is wireless or wired; and the X-ray image reception display device includes another determination unit configured to determine whether a reception communication method is wireless or wired; The unit is characterized by determining whether it is wireless or wired using different methods.

本発明によれば、一方しか接続相手のＩＰアドレスを知らず、かつネットワークハブを介して接続されている場合に有線無線の切り替えタイミングを検知することが可能となる。   According to the present invention, when only one side knows the IP address of the connection partner and is connected via a network hub, it is possible to detect the switching timing of wired radio.

本発明の実施形態におけるＸ線撮影装置の概略構成を示す図である。It is a figure which shows schematic structure of the X-ray imaging apparatus in embodiment of this invention. 無線有線がサポートされた場合に、無線が接続された状態で、有線を接続した場合のシーケンスチャートである。It is a sequence chart at the time of connecting a wired connection in a state where the wireless connection is established when the wireless wired connection is supported. 無線有線がサポートされた場合に、無線が接続かつ有線接続時に、有線を切断した場合のシーケンスチャートである。FIG. 10 is a sequence chart when a wired connection is disconnected when wireless connection is supported and wireless connection is established. 無線有線がサポートされた場合に、有線が接続、無線が切断されている状態で、有線も切断した場合のシーケンスチャートである。FIG. 11 is a sequence chart when a wired connection is disconnected in a state where the wired connection is connected and the wireless connection is disconnected when the wireless connection is supported. 本発明の実施形態におけるＸ線撮影装置の概略構成を示す図である。It is a figure which shows schematic structure of the X-ray imaging apparatus in embodiment of this invention. 本発明の実施形態における許可通信モードＤＢの具体例を示す図である。It is a figure which shows the specific example of permission communication mode DB in embodiment of this invention. 有線のみがサポートされた場合に、有線を接続した場合のシーケンスチャートである。It is a sequence chart at the time of connecting a wire when only a wire is supported. 有線のみがサポートされた場合に、有線を切断した場合のシーケンスチャートである。It is a sequence chart when a wired connection is disconnected when only a wired connection is supported.

以下、本発明を適用した好適な実施形態を、添付図面を参照しながら詳細に説明する。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments to which the invention is applied will be described in detail with reference to the accompanying drawings.

図１は、本実施形態に係るＸ線撮影装置１０８の構成を示すブロック図である。Ｘ線画像検出部１０１は、Ｘ線画像受信表示装置１０３と無線経路側はアクセスポイント１０６を介してネットワークハブ１０５へ接続されており、有線経路側はネットワークハブ１０５へ接続されており、センサの制御情報や画像通信を行う。Ｘ線を発生させるＸ線発生装置とＸ線画像を取得するセンサの受光動作とを同期制御するＸ線同期装置１０７は、ネットワークハブ１０５を介してＸ線画像検出部１０１と接続されており、無線経路もしくは有線経路にて通信される。   FIG. 1 is a block diagram showing the configuration of the X-ray imaging apparatus 108 according to the present embodiment. The X-ray image detection unit 101 is connected to the network hub 105 via the access point 106 on the wireless path side with the X-ray image reception display device 103, and connected to the network hub 105 on the wired path side. Perform control information and image communication. An X-ray generator 107 that generates X-rays and an X-ray synchronizer 107 that controls synchronously the light receiving operation of a sensor that acquires an X-ray image are connected to the X-ray image detector 101 via a network hub 105. Communication is performed via a wireless route or a wired route.

Ｘ線画像検出部１０１は、Ｘ線画像受信表示装置１０３へ送信する通信方法を無線か有線かを判定する第１の無線有線切り替え判定部１０２を有する。Ｘ線画像受信表示装置１０３は、Ｘ線画像検出部１０１から受信する通信方法を無線か有線かを判定する第２の無線有線切り替え判定部１０４を有する。   The X-ray image detection unit 101 includes a first wireless / wireless switching determination unit 102 that determines whether a communication method to be transmitted to the X-ray image reception display device 103 is wireless or wired. The X-ray image reception display device 103 includes a second wireless / wireless switching determination unit 104 that determines whether the communication method received from the X-ray image detection unit 101 is wireless or wired.

次に実際のシーケンスについて述べる。図２は、無線が接続された状態で、有線を接続した場合のシーケンスチャートである。Ｘ線画像受信表示装置１０３はＸ線画像検出部１０１のＩＰアドレスを保持しており、継続的なパケット送信（ハートビート）を通信が成功するまで行う。失敗例がＳ２０１、成功例がＳ２０２である。成功時にはハートビートの返答が返ってくる。成功したら、有線が接続されたと検知する（ステップＳ２０４）。なお、Ｘ線画像検出部１０１はＸ線画像受信表示装置１０３のＩＰアドレスを保持していない。   Next, the actual sequence will be described. FIG. 2 is a sequence chart when a wire is connected in a state where the wireless is connected. The X-ray image reception display device 103 holds the IP address of the X-ray image detection unit 101 and performs continuous packet transmission (heartbeat) until communication is successful. The failure example is S201, and the success example is S202. When successful, a heartbeat response is returned. If successful, it is detected that a wired connection has been made (step S204). Note that the X-ray image detection unit 101 does not hold the IP address of the X-ray image reception display device 103.

一方、Ｘ線画像検出器１０１はネットワークのリンクアップを検知もしくは、カセッテホルダーの装着を検知して、有線が接続されたと検知する（ステップＳ２０５）。有線接続が検知されたら有線側が優先して接続されるため、Ｘ線画像受信表示装置１０３及びＸ線画像検出器１０１は、互いに無線側の終了処理を行う（ステップＳ２０６）。次にＸ線画像受信表示装置１０３とＸ線画像検出器１０１のコネクションの確立を行い（ステップＳ２０７）、確立されたら有線の初期化処理に移行する（ステップＳ２０８）。   On the other hand, the X-ray image detector 101 detects the link-up of the network or the attachment of the cassette holder, and detects that a wired connection has been made (step S205). When the wired connection is detected, the wired side is preferentially connected, so that the X-ray image reception display device 103 and the X-ray image detector 101 perform the end processing on the wireless side (step S206). Next, a connection between the X-ray image reception display device 103 and the X-ray image detector 101 is established (step S207), and if established, the process proceeds to a wired initialization process (step S208).

無線も有線も切断された状態で、有線を接続する場合は、図２のシーケンスから無線の終了処理（ステップＳ２０６）を省いたシーケンスとなる。図３は、無線が接続かつ有線接続時に、有線を切断した場合のシーケンスチャートである。   When the wired connection is made in a state where both the wireless connection and the wired connection are disconnected, the wireless end process (step S206) is omitted from the sequence of FIG. FIG. 3 is a sequence chart when the wired connection is disconnected when the wireless connection is established and the wired connection is established.

Ｘ線画像受信表示装置１０３から継続的なパケット送信（ハートビート）を行い、失敗するまで行う。成功例がステップＳ３０１、失敗例がステップＳ３０２である。失敗したら、有線が切断されたと検知する（ステップＳ３０４）。一方、Ｘ線画像検出器１０１はネットワークのリンクアップ解除もしくは、カセッテホルダーの取り外しを検知することで有線が切断されたと検知する（ステップＳ３０５）。有線切断が検知されたら有線の終了処理を行い（ステップＳ３０６）、無線側のコネクションの確立を行う（ステップＳ３０７）。さらに初期化処理を行う（ステップＳ３０８）。   Continuous packet transmission (heartbeat) is performed from the X-ray image reception display apparatus 103 until the failure. A successful example is step S301, and a failed example is step S302. If unsuccessful, it is detected that the wire is disconnected (step S304). On the other hand, the X-ray image detector 101 detects that the wire has been disconnected by detecting release of the network link-up or removal of the cassette holder (step S305). If a wired disconnection is detected, a wired termination process is performed (step S306), and a wireless connection is established (step S307). Further, initialization processing is performed (step S308).

図４は、有線が接続、無線が切断されている状態で、有線も切断した場合のシーケンスである。ここでの無線が切断という意味は、距離や遮蔽物のせいで電波が届かない状態を指す。Ｘ線画像受信表示装置１０３から継続的なパケット送信（ハートビート）を行い、失敗するまで行う。成功例がステップＳ４０１、失敗例がステップＳ４０２である。失敗したら、有線が切断されたと検知する（ステップＳ４０４）。一方、Ｘ線画像検出器101はネットワークのリンクアップ解除もしくは、カセッテホルダーの取り外しを検知して、有線が切断されたと検知する（ステップＳ４０５）。有線切断が検知されたら有線の終了処理を行い（ステップＳ３０６）、有線のハートビート（ステップＳ４０７、Ｓ４０９）及び無線のコネクション試行を互いに行う（ステップＳ４０８、Ｓ４１０）。上記コネクション試行が成功した場合に、図２や図３のシーケンスへ移行する。   FIG. 4 is a sequence in the case where the wired connection is disconnected while the wired connection is established and the wireless connection is disconnected. The meaning of wireless disconnection here refers to a state in which radio waves do not reach due to distance or shielding. Continuous packet transmission (heartbeat) is performed from the X-ray image reception display apparatus 103 until the failure. A successful example is step S401, and a failed example is step S402. If unsuccessful, it is detected that the wire is disconnected (step S404). On the other hand, the X-ray image detector 101 detects release of the network link-up or removal of the cassette holder, and detects that the wire is disconnected (step S405). When a wired disconnection is detected, a wired termination process is performed (step S306), and a wired heartbeat (steps S407 and S409) and a wireless connection attempt are performed mutually (steps S408 and S410). When the connection attempt is successful, the process proceeds to the sequence of FIGS.

次に、本発明の他の実施形態について説明する。図５は、図１に加えさらに第２の無線有線切り替え判定部１０４に許可通信モードＤＢ５０１を有した場合の構成を示すブロック図である。   Next, another embodiment of the present invention will be described. FIG. 5 is a block diagram showing a configuration in the case where the second wireless wired switching determination unit 104 has the permitted communication mode DB 501 in addition to FIG.

上記許可通信モードＤＢ５０１は、図６のようなデータから構成され、撮影手技別に無線・有線をサポートするかどうかの情報を有する。図６を例に説明すると、立位胸部は、無線と有線両方をサポートする。臥位腹部は、テーブルのカセッテホルダーを用いることが想定されるため、有線のみのサポートと設定する。カセッテは、無線有線両方で撮影を行う可能性がある場合である。この情報を基に、無線有線切り替え判定部１０４は、立位胸部及びカセッテの場合は、第１の実施形態と同じシーケンスを行う。また、臥位腹部のように有線のみサポートする場合は、無線が接続された状態で、有線を接続した場合のシーケンスの場合は、図２での無線の終了処理（ステップＳ２０６）を行わないシーケンス（図７）を行う。無線が接続かつ有線接続時に、有線を切断した場合のシーケンスの場合は、図３での無線のコネクション確立（ステップＳ３０７）、無線の初期化処理（ステップＳ３０８）を行わず、有線のハートビート（ステップＳ８０１、Ｓ８０２）を行う（図８参照）。有線が接続、無線が切断されている状態で、有線も切断した場合のシーケンスも図８と同様のシーケンスになる。   The permitted communication mode DB 501 is composed of data as shown in FIG. 6 and has information on whether to support wireless / wired for each shooting technique. Taking FIG. 6 as an example, the standing chest supports both wireless and wired. The supine abdomen is assumed to use a table cassette holder, so it is set to support only wired. The cassette is a case where there is a possibility of shooting with both wireless and wired. Based on this information, the wireless wired switching determination unit 104 performs the same sequence as that of the first embodiment in the case of the standing chest and the cassette. Further, when only a wired connection is supported as in the saddle-up position, in the case of a sequence in which the wireless connection is established and the wired connection is established, the wireless termination process (step S206) in FIG. 2 is not performed. (FIG. 7) is performed. In the case of a sequence in which the wired connection is disconnected when the wireless connection is established and the wired connection is established, the wired connection is not performed (step S307) and the wireless initialization process (step S308) in FIG. Steps S801 and S802) are performed (see FIG. 8). The sequence when the wired connection is disconnected while the wired connection is disconnected and the wireless connection is disconnected is the same sequence as in FIG.

また、本発明は、以下の処理を実行することによっても実現される。即ち、上述した実施形態の機能を実現するソフトウェア（プログラム）を、ネットワーク又は各種記憶媒体を介してシステム或いは装置に供給し、そのシステム或いは装置のコンピュータ（またはＣＰＵやＭＰＵ等）がプログラムを読み出して実行する処理である。   The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

１０１：Ｘ線画像検出部、１０２：第１の無線有線切り替え判定部、１０３：Ｘ線画像受信表示装置、１０４：第２の無線有線切り替え判定部、１０５：ネットワークハブ、１０６：アクセスポイント、１０７：Ｘ線同期装置、１０８：Ｘ線撮影装置   101: X-ray image detection unit, 102: first wireless wired switching determination unit, 103: X-ray image reception display device, 104: second wireless wired switching determination unit, 105: network hub, 106: access point, 107 : X-ray synchronization device, 108: X-ray imaging device

Claims (4)

Ｘ線を検出してＸ線画像を取得するＸ線画像検出器と、Ｘ線画像検出器から送信される画像を受信し表示するＸ線画像受信表示装置と、Ｘ線を発生させるＸ線発生装置と、前記Ｘ線画像検出器とＸ線発生装置とを同期制御するＸ線同期装置とを備えたＸ線撮影装置において、
前記Ｘ線画像検出器は、送信の通信方法を無線か有線かを判定する判定部を有し、
前記Ｘ線画像受信表示装置は、受信の通信方法を無線か有線かを判定する他の判定部を有し、
前記各判定部は、異なる方法で無線か有線かを判定することを特徴とするＸ線撮影装置。 X-ray image detector for detecting X-rays to acquire an X-ray image, X-ray image receiving display device for receiving and displaying an image transmitted from the X-ray image detector, and X-ray generation for generating X-rays In an X-ray imaging apparatus comprising: an apparatus; and an X-ray synchronization apparatus that synchronously controls the X-ray image detector and the X-ray generation apparatus,
The X-ray image detector includes a determination unit that determines whether a communication method of transmission is wireless or wired,
The X-ray image reception display device has another determination unit that determines whether the reception communication method is wireless or wired,
Each said determination part determines whether it is a radio | wireless or a wire by a different method, The X-ray imaging apparatus characterized by the above-mentioned. 前記Ｘ線画像受信表示装置は前記Ｘ線画像検出器のＩＰアドレスを保持しており、前記Ｘ線画像検出器は前記Ｘ線画像受信表示装置のＩＰアドレスを保持していないことを特徴とする請求項１に記載のＸ線撮影装置。   The X-ray image receiving and displaying device holds an IP address of the X-ray image detector, and the X-ray image detector does not hold an IP address of the X-ray image receiving and displaying device. The X-ray imaging apparatus according to claim 1. Ｘ線を検出してＸ線画像を取得するＸ線画像検出器と、Ｘ線画像検出器から送信される画像を受信し表示するＸ線画像受信表示装置と、Ｘ線を発生させるＸ線発生装置と、前記Ｘ線画像検出器とＸ線発生装置とを同期制御するＸ線同期装置とを備えたＸ線撮影装置におけるＸ線撮影方法において、
前記Ｘ線画像検出器による送信の通信方法を無線か有線かを判定する判定工程と、
前記Ｘ線画像受信表示装置による受信の通信方法を無線か有線かを判定する他の判定工程とを有し、
前記各判定工程は、異なる方法で無線か有線かを判定することを特徴とするＸ線撮影方法。 X-ray image detector for detecting X-rays to acquire an X-ray image, X-ray image receiving display device for receiving and displaying an image transmitted from the X-ray image detector, and X-ray generation for generating X-rays In an X-ray imaging method in an X-ray imaging apparatus comprising an apparatus, and an X-ray synchronization apparatus that synchronously controls the X-ray image detector and the X-ray generation apparatus,
A determination step of determining whether the communication method of transmission by the X-ray image detector is wireless or wired;
Another determination step of determining whether the communication method of reception by the X-ray image reception display device is wireless or wired,
Each said determination process determines whether it is a radio | wireless or a wire by a different method, The X-ray imaging method characterized by the above-mentioned. Ｘ線を検出してＸ線画像を取得するＸ線画像検出器と、Ｘ線画像検出器から送信される画像を受信し表示するＸ線画像受信表示装置と、Ｘ線を発生させるＸ線発生装置と、前記Ｘ線画像検出器とＸ線発生装置とを同期制御するＸ線同期装置とを備えたＸ線撮影装置におけるＸ線撮影方法をコンピュータに実行させるためのプログラムにおいて、
前記Ｘ線画像検出器による送信の通信方法を無線か有線かを判定する判定工程と、
前記Ｘ線画像受信表示装置による受信の通信方法を無線か有線かを判定する他の判定工程とをコンピュータに実行させ、
前記各判定工程は、異なる方法で無線か有線かを判定することを特徴とするプログラム。 X-ray image detector for detecting X-rays to acquire an X-ray image, X-ray image receiving display device for receiving and displaying an image transmitted from the X-ray image detector, and X-ray generation for generating X-rays In a program for causing a computer to execute an X-ray imaging method in an X-ray imaging apparatus including an apparatus and an X-ray synchronization apparatus that synchronously controls the X-ray image detector and the X-ray generation apparatus,
A determination step of determining whether the communication method of transmission by the X-ray image detector is wireless or wired;
Causing the computer to execute another determination step of determining whether the communication method of reception by the X-ray image reception display device is wireless or wired;
Each said determination process determines whether it is wireless or a wire by a different method.
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