JP4343155B2 - Distribution / bypass switching device - Google Patents

Distribution / bypass switching device Download PDF

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JP4343155B2
JP4343155B2 JP2005208875A JP2005208875A JP4343155B2 JP 4343155 B2 JP4343155 B2 JP 4343155B2 JP 2005208875 A JP2005208875 A JP 2005208875A JP 2005208875 A JP2005208875 A JP 2005208875A JP 4343155 B2 JP4343155 B2 JP 4343155B2
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digital broadcast
distributor
broadcast signal
switching
bypass
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JP2007028317A (en
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雅則 加藤
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Toshiba Corp
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この発明は、例えば放送局等に使用され、１系統の入力信号を分配して二重化システムを構築している場合に、後段システムへの影響を低減する分配・バイパス切替装置に関する。   The present invention relates to a distribution / bypass switching device that is used in, for example, a broadcasting station or the like and reduces an influence on a subsequent system when a duplex system is constructed by distributing one system of input signals.

従来より、放送送出設備にあっては、機器の故障対策及び保守のために、現用・予備の二重化構成とすることが一般的となっている（例えば、特許文献１）。また、二重化システムにあっては、分配系により１つの信号を現用・予備に分配するものもある。   2. Description of the Related Art Conventionally, it is common for broadcast transmission facilities to have a working / standby duplex configuration for equipment failure countermeasures and maintenance (for example, Patent Document 1). Some duplex systems distribute one signal to the active / standby system using a distribution system.

ところで、上記二重化システムにおいて、現用系に障害が発生すると後段で予備系に切り替えられるが、分配系の障害では各系への入力信号が途切れるため、系統切り替えが行なわれても障害を回避できない。   By the way, in the above duplex system, when a failure occurs in the active system, the system is switched to the standby system at a later stage. However, the failure of the distribution system cannot interrupt the failure even if the system is switched because the input signal to each system is interrupted.

そこで、アナログ放送では、入力インピーダンスを高くした分配系を各系統ごとに用意し、それらを並列につないで信号を分配する方法が考えられている。
特開２００１−２１７７５３号公報。 Therefore, in analog broadcasting, a method is considered in which a distribution system with a high input impedance is prepared for each system and the signals are distributed by connecting them in parallel.
JP 2001-217753 A.

しかし、デジタル放送では、分配系を各系統ごとに用意し、それらを並列につないだとしても、各分配系における信号間の遅延及び位相が少しでもずれていると、後段での系統切り替えの前後で信号に不連続が生じてしまい、切替出力の信号品質が劣化してしまう。   However, in digital broadcasting, even if a distribution system is prepared for each system and they are connected in parallel, if the delay and phase between signals in each distribution system are slightly shifted, before and after system switching at the subsequent stage As a result, discontinuity occurs in the signal, and the signal quality of the switching output deteriorates.

そこで、この発明の目的は、分配系に障害が発生しても、デジタル放送信号の系統切り替えを行い得る分配・バイパス切替装置を提供することにある。   SUMMARY OF THE INVENTION An object of the present invention is to provide a distribution / bypass switching device capable of switching the system of a digital broadcast signal even if a failure occurs in the distribution system.

この発明は、上記目的を達成するために、以下のように構成される。
分配器により分配された第１系及び第２系のデジタル放送信号を系統切替装置により選択的に導出するデジタル放送信号送出システムに用いられ、分配器に入力されるデジタル放送信号を第１系のデジタル放送信号として分配器をバイパスさせる第１のバイパス経路と、分配器に入力されるデジタル放送信号を第２系のデジタル放送信号として分配器をバイパスさせる第２のバイパス経路と、デジタル放送信号を分配器、第１のバイパス経路及び第２のバイパス経路へ選択的に導出する入力切替手段と、分配器により分配された第１系のデジタル放送信号と、第１のバイパス経路を通過した第１系のデジタル放送信号とを系統切替装置に選択的に出力する第１の出力切替手段と、分配器により分配された第２系のデジタル放送信号と、第２のバイパス経路を通過した第２系のデジタル放送信号とを系統切替装置に選択的に出力する第２の出力切替手段と、ユーザの指定操作に応じて、分配器、第１及び第２のバイパス経路のいずれか１つを選択するように入力切替器、第１及び第２の出力切替器を切替制御する切替制御手段とを備えるようにしたものである。 In order to achieve the above object, the present invention is configured as follows.
Used in a digital broadcast signal transmission system for selectively deriving the first and second digital broadcast signals distributed by the distributor by the system switching device, and the digital broadcast signal input to the distributor is the first system A first bypass path for bypassing the distributor as a digital broadcast signal, a second bypass path for bypassing the distributor as a digital broadcast signal input to the distributor as a second system digital broadcast signal, and a digital broadcast signal A distributor, input switching means selectively deriving to the first bypass path and the second bypass path; a first digital broadcast signal distributed by the distributor; and the first that has passed through the first bypass path. A first output switching means for selectively outputting the system digital broadcast signal to the system switching device, a second system digital broadcast signal distributed by the distributor, and a second A second output switching means for selectively outputting the second digital broadcast signal that has passed through the bypass path to the system switching device, and a distributor, first and second bypass paths according to a user's designated operation. And an input switching unit and switching control means for switching control of the first and second output switching units so as to select any one of them.

この構成によれば、分配器をバイパスさせる第１及び第２のバイパス経路を用いて、入力切替器により入力されるデジタル放送信号を分配器、第１及び第２のバイパス経路へ選択的に導出し、第１の出力切替器により分配器で分配された第１系のデジタル放送信号と第１のバイパス経路を通過した第１系のデジタル放送信号とを選択的に後段の系統切替装置に出力し、第２の出力切替器により分配器で分配された第２系のデジタル放送信号と第２のバイパス経路を通過した第２系のデジタル放送信号とを選択的に後段の系統切替装置に出力するように構成している。   According to this configuration, the first and second bypass paths that bypass the distributor are used to selectively derive the digital broadcast signal input by the input switch to the distributor and the first and second bypass paths. Then, the first system digital broadcast signal distributed by the distributor by the first output switching unit and the first system digital broadcast signal passing through the first bypass path are selectively output to the subsequent system switching device. Then, the second system digital broadcast signal distributed by the distributor by the second output switching unit and the second system digital broadcast signal passing through the second bypass path are selectively output to the subsequent system switching device. It is configured to do.

従って、分配器の障害発生時における系統切替装置への第１系及び第２系のデジタル放送信号の伝送路を確保することができ、これにより系統切替装置にてデジタル放送信号の系統切り替えを行うことができる。   Therefore, it is possible to secure the transmission paths of the first and second digital broadcast signals to the system switching device when a failure occurs in the distributor, whereby the system switching of the digital broadcast signal is performed by the system switching device. be able to.

さらに、分配器の障害を検出する障害検出手段と、この障害検出手段で分配器の障害が検出された場合に、その旨をユーザに報知する報知手段とを備え、切替制御手段は、報知手段による報知に対しユーザが第１及び第２のバイパス経路への切替指定操作を行なった場合に、入力切替手段、第１及び第２の出力切替手段を切替制御することを特徴とする。   Further, it comprises failure detection means for detecting a failure of the distributor, and notification means for notifying the user when the failure of the distributor is detected by the failure detection means, and the switching control means includes the notification means. When the user performs a switching designation operation to the first and second bypass paths in response to the notification, the input switching means and the first and second output switching means are controlled to switch.

この構成によれば、分配器に障害が発生するごとにユーザが自身で第１及び第２のバイパス経路への切替操作を行なうことができる。   According to this configuration, whenever a failure occurs in the distributor, the user can perform switching operation to the first and second bypass paths by himself / herself.

分配器により分配された第１系及び第２系のデジタル放送信号を系統切替装置により選択的に導出するデジタル放送信号送出システムに用いられ、分配器に入力されるデジタル放送信号を第１系のデジタル放送信号として分配器をバイパスさせる第１のバイパス経路と、分配器に入力されるデジタル放送信号を第２系のデジタル放送信号として分配器をバイパスさせる第２のバイパス経路と、デジタル放送信号を分配器、第１のバイパス経路及び第２のバイパス経路へ選択的に導出する入力切替手段と、分配器により分配された第１系のデジタル放送信号と、第１のバイパス経路を通過した第１系のデジタル放送信号とを系統切替装置に選択的に出力する第１の出力切替手段と、分配器により分配された第２系のデジタル放送信号と、第２のバイパス経路を通過した第２系のデジタル放送信号とを系統切替装置に選択的に出力する第２の出力切替手段と、分配器の障害を検出する障害検出手段と、この障害検出手段により分配器の障害が検出された場合に、系統切替装置から切り替えられている系統を示す系統情報を取得する取得手段と、この取得手段により取得された系統情報に基づいて、第１及び第２のバイパス経路のいずれか１つを選択するように入力切替器、第１及び第２の出力切替器を切替制御する切替制御手段とを備えるようにしたものである。   Used in a digital broadcast signal transmission system for selectively deriving the first and second digital broadcast signals distributed by the distributor by the system switching device, and the digital broadcast signal input to the distributor is the first system A first bypass path for bypassing the distributor as a digital broadcast signal, a second bypass path for bypassing the distributor as a digital broadcast signal input to the distributor as a second system digital broadcast signal, and a digital broadcast signal A distributor, input switching means selectively deriving to the first bypass path and the second bypass path; a first digital broadcast signal distributed by the distributor; and the first that has passed through the first bypass path. A first output switching means for selectively outputting the system digital broadcast signal to the system switching device, a second system digital broadcast signal distributed by the distributor, and a second A second output switching means for selectively outputting the second digital broadcast signal that has passed through the bypass path to the system switching device, a fault detection means for detecting a fault in the distributor, and a distributor by the fault detection means Acquisition means for acquiring the system information indicating the system switched from the system switching device, and the first and second bypass paths based on the system information acquired by the acquisition means And an input switching unit and switching control means for switching control of the first and second output switching units so as to select any one of them.

この構成によれば、分配器の障害発生時に、系統切替装置にて送出中の系統を示す情報が取得され、この情報をもとに第１及び第２のバイパス経路の１つを選択するように自動的に入力切替器、第１及び第２の出力切替器の切替制御が行われる。従って、近くにユーザが常駐しない場合でも、分配器に障害が発生した時に、系統切替装置におけるデジタル放送信号の系統切り替えを継続して行うことができる。   According to this configuration, when the failure of the distributor occurs, information indicating the system being sent out is acquired by the system switching device, and one of the first and second bypass paths is selected based on this information. The input switching device and the first and second output switching devices are automatically switched. Therefore, even when the user is not resident nearby, the system switching of the digital broadcast signal in the system switching device can be continuously performed when a failure occurs in the distributor.

以上詳述したようにこの発明によれば、分配系に障害が発生しても、デジタル放送信号の系統切り替えを行い得る分配・バイパス切替装置を提供することができる。   As described above in detail, according to the present invention, it is possible to provide a distribution / bypass switching device that can perform system switching of digital broadcast signals even when a failure occurs in the distribution system.

以下、この発明の実施形態について図面を参照して詳細に説明する。
（第１の実施形態）
図１は、この発明の第１の実施形態に係わる分配・バイパス切替装置が適用されるデジタル放送信号送出システムの構成を示すブロック図である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First embodiment)
FIG. 1 is a block diagram showing the configuration of a digital broadcast signal transmission system to which a distribution / bypass switching apparatus according to the first embodiment of the present invention is applied.

この分配・バイパス切替装置では、デジタル放送信号が入力され、入力切替器１１によって、分配系１２及びバイパス切替器１３に選択的に導出される。分配系１２に入力されたデジタル放送信号は、１系と２系とに分配される。このうち１系のデジタル放送信号は、出力切替器１４を介して系統切替装置１５に入力される。また、２系のデジタル放送信号は、出力切替器１６を介して系統切替装置１５に入力される。系統切替装置１５は、系統切替信号に応じて１系から２系、または２系から１系に切り替えるものである。   In this distribution / bypass switching device, a digital broadcast signal is input and is selectively led to the distribution system 12 and the bypass switching device 13 by the input switching device 11. The digital broadcast signal input to the distribution system 12 is distributed to the first system and the second system. Among these, the 1-system digital broadcast signal is input to the system switching device 15 via the output switch 14. In addition, the 2-system digital broadcast signal is input to the system switching device 15 via the output switch 16. The system switching device 15 switches from system 1 to system 2 or from system 2 to system 1 according to the system switching signal.

一方、バイパス切替器１３は、入力切替器１１により導出されたデジタル放送信号を、バイパス経路１７,１８に選択的に導出するものである。バイパス経路１７を通過した１系としてのデジタル放送信号は、出力切替器１４によって、系統切替装置１５に導出される。また、バイパス経路１８を通過した２系としてのデジタル放送信号は、出力切替器１６によって、系統切替装置１５に導出される。   On the other hand, the bypass switch 13 selectively guides the digital broadcast signal derived by the input switch 11 to the bypass paths 17 and 18. The digital broadcast signal as one system that has passed through the bypass path 17 is led to the system switching device 15 by the output switch 14. Further, the digital broadcast signal as the second system that has passed through the bypass path 18 is led to the system switching device 15 by the output switch 16.

上記入力切替器１１、バイパス切替器１３、出力切替器１４,１６は、切替制御器１９によって切替制御される。   The input switch 11, the bypass switch 13, and the output switches 14 and 16 are controlled to be switched by a switching controller 19.

また、上記分配系１２は、障害が発生すると、その旨のメッセージをモニタ２０に表示させる。   Further, when a failure occurs, the distribution system 12 displays a message to that effect on the monitor 20.

次に、上記構成における動作について説明する。
いま、出力切替器１４によって、分配系１２により分配される第１系のデジタル放送信号が系統切替装置１５に導出され、出力切替器１６によって、分配系１２により分配される第２系のデジタル放送信号が系統切替装置１５に導出されているものとする。 Next, the operation in the above configuration will be described.
Now, the output switching unit 14 leads the first system digital broadcast signal distributed by the distribution system 12 to the system switching device 15, and the output switching unit 16 distributes the second system digital broadcasting signal by the distribution system 12. It is assumed that the signal is derived to the system switching device 15.

そして、系統切替装置１５では、１系のデジタル放送信号に切り替えているものとする。   Then, it is assumed that the system switching device 15 switches to the 1-system digital broadcast signal.

ここで、分配系１２に障害が発生したとする。そうすると、障害発生の旨のメッセージを分配系１２からモニタ２０に供給して表示させる。従って、この表示により運用者（ユーザ）は分配系１２に障害が発生している旨を知ることができる。   Here, it is assumed that a failure has occurred in the distribution system 12. Then, a message indicating that a failure has occurred is supplied from the distribution system 12 to the monitor 20 for display. Therefore, the operator (user) can know that a failure has occurred in the distribution system 12 by this display.

この状態で運用者が、バイパス経路１７を選択するべく入力部（図示せず）において切替指示を入力したとする。そうすると、切替制御器１９は、図２に示すように、バイパス経路１７を選択するように、上記入力切替器１１、バイパス切替器１３、出力切替器１４,１６を切替制御する。   In this state, it is assumed that the operator inputs a switching instruction at an input unit (not shown) to select the bypass route 17. Then, the switching controller 19 performs switching control of the input switching unit 11, the bypass switching unit 13, and the output switching units 14 and 16 so as to select the bypass path 17, as shown in FIG.

一方、系統切替装置１５が２系のデジタル放送信号を出力している状態で、分配系１２に障害が発生した場合には、切替制御器１９は、図３に示すように、運用者からの切替指示に応じて、バイパス経路１８を選択するように、上記入力切替器１１、バイパス切替器１３、出力切替器１４，１６を切替制御する。   On the other hand, when a failure occurs in the distribution system 12 in a state where the system switching device 15 is outputting the 2-system digital broadcast signal, the switching controller 19 receives an operation from the operator as shown in FIG. In response to the switching instruction, the input switching device 11, the bypass switching device 13, and the output switching devices 14 and 16 are controlled so as to select the bypass path 18.

以上のように上記第１の実施形態では、分配系１２をバイパスさせるバイパス経路１７,１８を用いて、入力切替器１１及びバイパス切替器１３により入力されるデジタル放送信号を分配系１２、バイパス経路１７,１８へ選択的に導出し、出力切替器１４により分配系１２で分配された１系のデジタル放送信号とバイパス経路１７を通過した１系のデジタル放送信号とを選択的に後段の系統切替装置１５に出力し、出力切替器１６により分配系１２で分配された２系のデジタル放送信号とバイパス経路１８を通過した２系のデジタル放送信号とを選択的に後段の系統切替装置１５に出力するようにしている。   As described above, in the first embodiment, by using the bypass paths 17 and 18 for bypassing the distribution system 12, the digital broadcast signal input by the input switch 11 and the bypass switch 13 is distributed to the distribution system 12, the bypass path. 17 and 18 selectively switching the system 1 digital broadcast signal distributed by the distribution system 12 by the output switch 14 and the system 1 digital broadcast signal passing through the bypass path 17 to the subsequent system switching Output to the device 15 and selectively output the two-system digital broadcast signal distributed by the distribution system 12 by the output switch 16 and the two-system digital broadcast signal passed through the bypass path 18 to the system switching device 15 at the subsequent stage. Like to do.

従って、分配系１２の障害発生時における系統切替装置１５への１系及び２系のデジタル放送信号の伝送路を確保することができ、これにより系統切替装置１５にてデジタル放送信号の系統切り替えを行うことができる。   Accordingly, it is possible to secure transmission paths for the 1-system and 2-system digital broadcast signals to the system switching device 15 when the failure of the distribution system 12 occurs. It can be carried out.

また、上記第１の実施形態では、分配系１２に障害が発生するごとに、その障害発生の旨がモニタ２０に表示するようにしているので、運用者が自身でバイパス経路１７,１８への切替操作を行なうことができる。   In the first embodiment, every time a failure occurs in the distribution system 12, the fact that the failure has occurred is displayed on the monitor 20, so that the operator himself / herself connects to the bypass paths 17 and 18. Switching operation can be performed.

（第２の実施形態）
図４は、この発明の第２の実施形態に係わる分配・バイパス切替装置が適用されるデジタル放送信号送出システムの構成を示すブロック図である。なお、図４において、上記図１と同一部分には同一符号を付して詳細な説明を省略する。 (Second Embodiment)
FIG. 4 is a block diagram showing the configuration of a digital broadcast signal transmission system to which the distribution / bypass switching device according to the second embodiment of the present invention is applied. In FIG. 4, the same parts as those in FIG.

すなわち、障害検出器２１により分配系１２の障害発生を検出し、この検出結果を切替制御器２２に通知する。すると、切替制御器２２は、系統切替装置１５から送出中の系統「１系」を示す情報を取得し、この取得した情報に基づいて、バイパス経路１７を選択するように、上記入力切替器１１、バイパス切替器１３、出力切替器１４，１６を切替制御する。   That is, the failure detector 21 detects the failure of the distribution system 12 and notifies the switching controller 22 of the detection result. Then, the switching controller 22 acquires information indicating the system “1 system” being sent out from the system switching device 15 and selects the bypass path 17 based on the acquired information. The bypass switch 13 and the output switches 14 and 16 are controlled to be switched.

以上のように上記第２の実施形態では、分配系１２の障害発生が障害検出器２１によって検出されて、その検出結果が切替制御器２２に通知される。そして、切替制御器２２では、通知された検出結果から分配系１２の障害発生を認識し、系統切替装置１５から送出中の系統を示す情報を取得し、この情報をもとにバイパス経路１７，１８の１つを選択するように自動的に入力切替器１１、バイパス切替器１３及び出力切替器１４，１６の切替制御を行うようにしている。   As described above, in the second embodiment, the failure occurrence of the distribution system 12 is detected by the failure detector 21 and the detection result is notified to the switching controller 22. Then, the switching controller 22 recognizes the occurrence of the failure of the distribution system 12 from the notified detection result, acquires information indicating the system being transmitted from the system switching device 15, and uses the bypass path 17, The switching control of the input switching unit 11, the bypass switching unit 13, and the output switching units 14 and 16 is automatically performed so that one of 18 is selected.

従って、近くに運用者が常駐しない場合でも、分配系１２の障害発生時に、系統切替装置１５におけるデジタル放送信号の系統切り替えを継続して行うことができる。   Therefore, even when the operator is not resident nearby, the system switching of the digital broadcast signal in the system switching device 15 can be continuously performed when a failure of the distribution system 12 occurs.

（その他の実施形態）
なお、この発明は上記各実施形態に限定されるものではない。例えば上記各実施形態では、入力切替手段として、入力切替器１１及びバイパス切替器１３を用いる例について説明した。しかしこれに限ることなく、例えば１個の入力切替器によりデジタル放送信号を分配系１２、バイパス経路１７，１８に選択的に導出するようにしてもよい。 (Other embodiments)
The present invention is not limited to the above embodiments. For example, in each of the above-described embodiments, the example in which the input switch 11 and the bypass switch 13 are used as the input switching unit has been described. However, the present invention is not limited to this. For example, the digital broadcast signal may be selectively led to the distribution system 12 and the bypass paths 17 and 18 by one input switch.

その他、システム構成、切替手順等についても、この発明の要旨を逸脱しない範囲で種々変形して実施できる。   In addition, the system configuration, switching procedure, and the like can be variously modified and implemented without departing from the gist of the present invention.

この発明の第１の実施形態に係わる分配・バイパス切替装置が適用されるデジタル放送信号送出システムの構成を示すブロック図。1 is a block diagram showing a configuration of a digital broadcast signal transmission system to which a distribution / bypass switching device according to a first embodiment of the present invention is applied. 同第１の実施形態において、１系のバイパス経路を選択する場合の切替動作例を示す図。The figure which shows the example of switching operation | movement in the case of selecting a 1-system bypass path in the first embodiment. 同第１の実施形態において、２系のバイパス経路を選択する場合の切替動作例を示す図。The figure which shows the example of switching operation | movement in the case of selecting the 2nd system bypass path | route in the said 1st Embodiment. この発明の第２の実施形態に係わる分配・バイパス切替装置が適用されるデジタル放送信号送出システムの構成を示すブロック図。The block diagram which shows the structure of the digital broadcast signal transmission system with which the distribution and bypass switching apparatus concerning 2nd Embodiment of this invention is applied.

符号の説明Explanation of symbols

１１…入力切替器、１２…分配系、１３…バイパス切替器、１４，１６…出力切替器、１５…系統切替装置、１７，１８…バイパス経路、１９…切替制御器、２０，２２…モニタ、２１…障害検出器。   DESCRIPTION OF SYMBOLS 11 ... Input switching device, 12 ... Distribution system, 13 ... Bypass switching device, 14, 16 ... Output switching device, 15 ... System switching device, 17, 18 ... Bypass path, 19 ... Switching controller, 20, 22 ... Monitor, 21 ... Fault detector.

Claims (3)

分配器により分配された第１系及び第２系のデジタル放送信号を系統切替装置により選択的に導出するデジタル放送信号送出システムに用いられ、
前記分配器に入力されるデジタル放送信号を前記第１系のデジタル放送信号として前記分配器をバイパスさせる第１のバイパス経路と、
前記分配器に入力されるデジタル放送信号を前記第２系のデジタル放送信号として前記分配器をバイパスさせる第２のバイパス経路と、
前記デジタル放送信号を前記分配器、前記第１のバイパス経路及び第２のバイパス経路へ選択的に導出する入力切替手段と、
前記分配器により分配された第１系のデジタル放送信号と、前記第１のバイパス経路を通過した第１系のデジタル放送信号とを前記系統切替装置に選択的に出力する第１の出力切替手段と、
前記分配器により分配された第２系のデジタル放送信号と、前記第２のバイパス経路を通過した第２系のデジタル放送信号とを前記系統切替装置に選択的に出力する第２の出力切替手段と、
ユーザの指定操作に応じて、前記分配器、前記第１及び第２のバイパス経路のいずれか１つを選択するように前記入力切替器、第１及び第２の出力切替器を切替制御する切替制御手段とを具備したことを特徴とする分配・バイパス切替装置。 Used in a digital broadcast signal transmission system that selectively derives the first system and second system digital broadcast signals distributed by the distributor by the system switching device,
A first bypass path that bypasses the distributor as a digital broadcast signal input to the distributor as the first system digital broadcast signal;
A second bypass path for bypassing the distributor as a digital broadcast signal of the second system as a digital broadcast signal input to the distributor;
Input switching means for selectively deriving the digital broadcast signal to the distributor, the first bypass path and the second bypass path;
First output switching means for selectively outputting the first system digital broadcast signal distributed by the distributor and the first system digital broadcast signal passing through the first bypass path to the system switching device. When,
Second output switching means for selectively outputting the second system digital broadcast signal distributed by the distributor and the second system digital broadcast signal passing through the second bypass path to the system switching device. When,
Switching for switching control of the input switching unit and the first and second output switching units so as to select any one of the distributor and the first and second bypass paths according to a user's designated operation. A distribution / bypass switching device comprising a control means. さらに、前記分配器の障害を検出する障害検出手段と、
この障害検出手段で前記分配器の障害が検出された場合に、その旨をユーザに報知する報知手段とを備え、
前記切替制御手段は、前記報知手段による報知に対しユーザが前記第１及び第２のバイパス経路への切替指定操作を行なった場合に、前記入力切替手段、第１及び第２の出力切替手段を切替制御することを特徴とする請求項１記載の分配・バイパス切替装置。 Furthermore, a failure detection means for detecting a failure of the distributor;
In the case where a failure of the distributor is detected by the failure detection means, a notification means for notifying the user to that effect,
The switching control unit is configured to switch the input switching unit, the first and second output switching units when a user performs a switching designation operation to the first and second bypass paths in response to the notification by the notification unit. 2. The distribution / bypass switching device according to claim 1, wherein switching control is performed. 分配器により分配された第１系及び第２系のデジタル放送信号を系統切替装置により選択的に導出するデジタル放送信号送出システムに用いられ、
前記分配器に入力されるデジタル放送信号を前記第１系のデジタル放送信号として前記分配器をバイパスさせる第１のバイパス経路と、
前記分配器に入力されるデジタル放送信号を前記第２系のデジタル放送信号として前記分配器をバイパスさせる第２のバイパス経路と、
前記デジタル放送信号を前記分配器、前記第１のバイパス経路及び第２のバイパス経路へ選択的に導出する入力切替手段と、
前記分配器により分配された第１系のデジタル放送信号と、前記第１のバイパス経路を通過した第１系のデジタル放送信号とを前記系統切替装置に選択的に出力する第１の出力切替手段と、
前記分配器により分配された第２系のデジタル放送信号と、前記第２のバイパス経路を通過した第２系のデジタル放送信号とを前記系統切替装置に選択的に出力する第２の出力切替手段と、
前記分配器の障害を検出する障害検出手段と、
この障害検出手段により前記分配器の障害が検出された場合に、前記系統切替装置から切り替えられている系統を示す系統情報を取得する取得手段と、
この取得手段により取得された系統情報に基づいて、前記第１及び第２のバイパス経路のいずれか１つを選択するように前記入力切替器、第１及び第２の出力切替器を切替制御する切替制御手段とを具備したことを特徴とする分配・バイパス切替装置。 Used in a digital broadcast signal transmission system that selectively derives the first system and second system digital broadcast signals distributed by the distributor by the system switching device,
A first bypass path that bypasses the distributor as a digital broadcast signal input to the distributor as the first system digital broadcast signal;
A second bypass path for bypassing the distributor as a digital broadcast signal of the second system as a digital broadcast signal input to the distributor;
Input switching means for selectively deriving the digital broadcast signal to the distributor, the first bypass path and the second bypass path;
First output switching means for selectively outputting the first system digital broadcast signal distributed by the distributor and the first system digital broadcast signal passing through the first bypass path to the system switching device. When,
Second output switching means for selectively outputting the second system digital broadcast signal distributed by the distributor and the second system digital broadcast signal passing through the second bypass path to the system switching device. When,
A failure detection means for detecting a failure of the distributor;
An acquisition means for acquiring system information indicating a system switched from the system switching device when a failure of the distributor is detected by the failure detection means;
Based on the system information acquired by the acquisition means, the input switch, the first output switch, and the second output switch are controlled so as to select one of the first and second bypass paths. A distribution / bypass switching device comprising switching control means.
JP2005208875A 2005-07-19 2005-07-19 Distribution / bypass switching device Expired - Fee Related JP4343155B2 (en)

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