201005688 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種訊號傳輸系統，特別是指一種串 接式訊號傳輸系統。 【先前技術】 如圖1所示，習知串接式訊號傳輸系統，大致包括一 可輸出具有特定識別編碼之控制訊號的主機U、一以其兩 • 端電連接於主機11並構成一單線迴路的傳播單線12，及數 個沿傳播單線12長度方向間隔設置之感應控制單元13，該 主機11輸出之控制訊號是於該傳播單線12上傳送，該等感 應控制單元13可分別透過線圈耦合感應的方式，無線接收 具有特定識別編碼之控制訊號，並將該控制訊號放大輸出 ，或用以驅動控制其他電子設備（圖未示）之作動。 雖然此種串接式訊號傳輸系統可有效避免訊號衰減的 問題，而可提供良好之訊號傳送品質，但是當傳播單線12 ® 發生斷線時，由於傳播單線12之斷線末端會產生天線效應 ，所以傳播單線12仍會經由斷線末端持蹟發送控制訊號， 使得傳播單線12斷線末端周圍的所有感應控制單元13仍 然可感應到傳播單線12發送的控制訊號，但控制訊號的品 質則會受感應控制單元13與傳播單線12斷線末端之距離 - 的影響，距離越遠訊號品質越差，以致於使用者通常無法 判斷是感應控制單元13損壞或者是傳播單線12已斷線， 尤其是在傳播單線12長度較短且該等感應控制單元13距 離較近的情況下，傳播單線12斷線的情況更難察覺，因此 5 201005688 ，串接式訊號傳輸系統的設計確實有改進的空間。 【發明内容】 I0 因此，本發明之目的’即在提供一種自動偵測斷路發 生的串接式訊號傳輸系統。 於是，本發明以隔離方式偵測斷路之串接式訊號傳輸 系統，適用於控制數個電子設備之啟閉，該串接式訊號傳 輸系統包含一主機單元，及數個分別與主機單元訊號連接 之感應控制單元。該主機單元包括一可輸出控制訊號之控 制器、一以其兩端電連接於控制器而用以傳輸控制訊號之 傳播單線、一沿傳播單線延伸地緊鄰設置於傳播單線旁侧 並可於傳播單線被裁斷時一併被裁斷之斷路偵測線、一可 被驅動致能而發出警報訊息之警報器、一電連接於斷路偵 測線並可於斷路偵測線斷線時驅使警報器致能之斷路偵測 器，及一於斷路偵測線與斷路偵測器間施加一工作電位的 電源供應器。該等感應控制單元是分別可感應接收傳播單 線上之控制訊號地沿傳播單線間隔設置，並可分別以所感 應接收之控制訊號控制該等電子設備之作動。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之二個較佳實施例的詳細說明中，將可 清楚的呈現。 在本發明被詳細描述之前，要注意的是，在以下的說 明内容中，類似的元件是以相同的編號來表示。 如圖2、3所示，本發明以隔離方式偵測斷路之串接式 201005688 訊號傳輸系統的第一較佳實施例，適用於串接式控制數個 電子設備200之作動，該電子設備200可以是音響設備或 燈光設備...等。 該串接式訊號傳輸系統包含一主機單元3，及數個分別 與該主機單元3訊號連接並可控制該等電子設備200之作 動的感應控制單元4。 該主機單元3包括一可輸出具有特定識別編碼之控制 φ 訊號的控制器31、一以其兩端電連接於控制器31而構成一 單線迴路之傳播單線32、一沿傳播單線32延伸地纏繞於傳 播單線32外之斷路偵測線33、一串聯於斷路偵測線33的 斷路偵測器34、一與斷路偵測器34電連接之警報器35, 及一於斷路偵測線33與斷路偵測器34間施加一預定工作 電位的電源供應器36。 該控制器31發送之控制訊號是以ASCII Code編成，且 可於該傳播單線32上傳輸，且對應欲控制之該等電子設備 ❿ 200 ’每一控制訊號都具有不同之識別編碼，由於該控制器 31沿傳播單線32輸送具有不同識別編碼之控制訊號的設計 為習知技術’且非本發明創作重點，因此不再詳述。 該斷路偵測線33為金屬導線，並緊鄰該傳播單線32， 且會於傳播單線32被裁斷或被蟲鼠咬斷時，一起被裁斷或 咬斷。 在本實施例中，該斷路偵測器34為發光二極體341與 光感應電晶體342構成之光耦合器，於斷路偵測線33正常 未被裁斷時，電源供應器36施加於斷路偵測線33與斷路 7 201005688 摘測器34間之卫作電位，使得斷路偵測線33上具有預定 大小之微量電流，而會驅使斷路偵測_ 34之發光二極體 341導通而持續發射紅外線使得光感應電晶體μ持續感 :導通，將用以驅動警報器35之電位拉低而未達足以推動 S報器35。在本實施例中，施加於斷路偵測線33之工作電 位疋介於DC 5 V〜36V間，電流是介於5〜5〇〇 mA間。201005688 IX. Description of the Invention: [Technical Field] The present invention relates to a signal transmission system, and more particularly to a serial signal transmission system. [Prior Art] As shown in FIG. 1 , a conventional serial signal transmission system generally includes a host U that can output a control signal having a specific identification code, and one of the two ends is electrically connected to the host 11 and constitutes a single line. The propagation single line 12 of the loop and the plurality of sensing control units 13 spaced along the length direction of the propagation single line 12, the control signals outputted by the host 11 are transmitted on the propagation single line 12, and the sensing control units 13 can be coupled through the coils respectively. Inductive mode, wirelessly receives a control signal with a specific identification code, and amplifies the control signal, or drives and controls other electronic devices (not shown). Although the serial signal transmission system can effectively avoid the problem of signal attenuation, and can provide good signal transmission quality, when the propagation single line 12 ® is disconnected, the antenna effect is generated due to the end of the disconnection of the propagation single line 12, Therefore, the propagation single line 12 will still send a control signal via the end of the broken line, so that all the sensing control units 13 around the end of the disconnection line of the propagation single line 12 can still sense the control signal sent by the propagation single line 12, but the quality of the control signal is affected by The influence of the distance between the sensing control unit 13 and the end of the disconnection of the propagation single line 12, the farther the distance is, the worse the signal quality is, so that the user usually cannot judge whether the sensing control unit 13 is damaged or the propagation single line 12 has been disconnected, especially in the When the length of the propagation single line 12 is short and the proximity of the sensing control unit 13 is relatively short, the situation in which the propagation single line 12 is broken is more difficult to detect. Therefore, 5 201005688, the design of the serial signal transmission system does have room for improvement. SUMMARY OF THE INVENTION I0 Accordingly, an object of the present invention is to provide a serial signal transmission system that automatically detects an open circuit. Therefore, the present invention is capable of detecting a disconnected serial signal transmission system in an isolated manner, and is suitable for controlling opening and closing of a plurality of electronic devices. The serial signal transmission system includes a host unit, and a plurality of signals respectively connected to the host unit. Induction control unit. The host unit includes a controller for outputting a control signal, a propagation single line electrically connected to the controller at both ends thereof for transmitting a control signal, and a propagation single line extending along the side of the propagation single line and being spreadable A disconnected detection line that is cut when a single line is cut, an alarm that can be driven to generate an alarm message, an electrical connection to the open circuit detection line, and an alarm generated when the disconnection detection line is broken A power disconnect detector, and a power supply that applies a working potential between the open circuit detection line and the open circuit detector. The inductive control units are respectively arranged to transmit and receive the control signals on the transmission line along the propagation single line interval, and can respectively control the operation of the electronic devices by the control signals sensed. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention. Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals. As shown in FIG. 2 and FIG. 3, the first preferred embodiment of the present invention for detecting a disconnected serially connected 201005688 signal transmission system in an isolated manner is suitable for controlling the operation of a plurality of electronic devices 200 in series, the electronic device 200. It can be an audio device or a lighting device...etc. The serial signal transmission system comprises a host unit 3, and a plurality of sensing control units 4 respectively connected to the host unit 3 and capable of controlling the operation of the electronic devices 200. The host unit 3 includes a controller 31 for outputting a control φ signal having a specific identification code, a propagation single line 32 electrically connected to the controller 31 at both ends thereof to form a single-wire loop, and an extended winding line along the propagation single line 32. A disconnection detection line 33 outside the propagation single line 32, a disconnection detector 34 connected in series with the open circuit detection line 33, an alarm 35 electrically connected to the disconnection detector 34, and a disconnection detection line 33 and A power supply 36 of a predetermined operating potential is applied between the open circuit detectors 34. The control signal sent by the controller 31 is encoded in ASCII code and can be transmitted on the propagation single line 32, and the control signals corresponding to the electronic device ❿ 200 ' each control signal have different identification codes, because the control The design of the device 31 to transmit control signals having different identification codes along the propagation single line 32 is a prior art and is not the focus of the present invention, and therefore will not be described in detail. The open circuit detecting line 33 is a metal wire and is adjacent to the propagation single wire 32, and is cut or bitten together when the propagation single wire 32 is cut or bitten by a pest. In this embodiment, the open circuit detector 34 is an optical coupler composed of the light emitting diode 341 and the light sensing transistor 342. When the open circuit detecting line 33 is normally not cut, the power supply 36 is applied to the open circuit detection. The line 33 and the circuit breaker 7 201005688 measure the potential between the detectors 34, so that the open circuit detection line 33 has a predetermined amount of small current, which will drive the light-emitting diode 341 of the open circuit detection _ 34 to conduct and continuously emit infrared rays. The photo-sensing transistor μ is made to be continuous: it is turned on, and the potential for driving the alarm device 35 is pulled low enough to push the reporter 35. In the present embodiment, the operating potential applied to the open circuit detecting line 33 is between DC 5 V and 36 V, and the current is between 5 and 5 mA.
該警報器35在光感應電晶體342持續感應導通的情況 下’不會被通電致能而發出警報訊息，但是當斷路偵測線 發生斷、線，會造成發光二極冑341 _電而停止發光，使 得光感應電曰342在未被感應導通的情況下，集極端由 低準位變成高準位，使得該警報器35立即被通電致能，而 發出聲響或亮光等警報訊息。The alarm device 35 will not be energized to generate an alarm message when the photo-sensing transistor 342 is continuously turned on. However, when the disconnection detection line is broken and the line is broken, the light-emitting diode 341 _ is stopped. The illuminating light causes the photo-inductive power 342 to change from a low level to a high level without being inductively turned on, so that the alarm device 35 is immediately energized to generate an alarm message such as an audible or bright light.
該等感應控制單元4是沿傳播單線32間隔設置，分 可透過輕合錢H減具有特㈣別編碼之控制訊 ’且可分別以感應接收之控制訊號驅動相對應之電子設 細作動。由於該等感應控制單元4感應接收傳播單線 上具有特㈣別編碼之控制訊號的設計為習知技術，且 本發明之創作重點，因此不再詳述。 该争接式訊號傳輸系統正常使用時，該等感應控制 疋4可持續感應接收傳播單線32上的相對應之控制訊號 並分別以該控制訊號驅動相對應電子設備2〇〇作動，例 聲音之輸出或燈光之亮滅I在傳播單線32未斷線的情, 下’亦即纏繞於傳播科32外的斷路_線％未斷線I ’警報器35不會發出警報訊息，當傳播單線32與斷〜 8 201005688 測線33斷線時，斷路偵測器34會因為斷電，而停止輸出 感應訊號，進而驅使該警報器35啟動發出警報訊i ,藉以 提醒使用者傳播單線32發生斷線情況，以便立即進行檢修 〇 在本實施例中’斷路偵測線33是纏繞於傳播單線32 外，所以傳播單線32斷線時，例如被裁斷時，勢必會連同 澌路偵測線33 —併裁斷，但實施時，該斷路偵測線33亦 φ 可沿傳播單線32延伸地直接並靠於傳播單線32旁側且 不以此為限。 如圖4所示，本發明以隔離方式偵測斷路之串接式訊 號傳輸系統的第二較佳實施例與第一實施例差異處僅在 於該斷路彳貞測器3 4之設計。為方便說明，以下將僅針對本 實施例與第一實施例差異處進行說明。 在本實施例中’該斷路偵測器34為繼電器，具有一電 磁線圈343、一並可被電磁線圈343產生之磁力吸引樞擺之 ❿ 可動電極344，及一與警報器35電接並可與可動電極344 電連接之固定電極345。 當斷路偵測線33未斷線時，電磁線圈343會被通電產 生磁力，而將彈性靠抵於該固定電極345之可動電極344 吸引樞擺脫離該固定電極345，在此情況下，警報器35會 呈現斷電狀態，而不會發出警報訊息。當斷路偵測線33發 生斷線時’電磁線圈343會斷電而不再產生磁力，此時， 该可動電極344會彈性回擺復位，並與該固定電極345電 連接，使得該警報器35通電致能而發出警報訊息，進而達 201005688 到提醒使用者傳播單線33發生斷線之目的》 歸納上述，透過於傳播單線32緊鄰設置一可與傳播單 線3 2以起斷線之斷路彳貞測線3 3，並透過斷路.彳貞測器3 4可 於斷路偵測線33斷線時，驅使警報器35發出警報訊息的 設計，可於傳播單線32與斷路偵測線33斷線時，可立即. 透過該警報器35之警報訊息提醒使用者，方便使用者即時 進行檢修。因此.，確實可達到本發明之目的。 惟以上所述者，僅為本發明之二較佳實施例而已，當 不能以此限定本發明實施之範圍’即大凡依本發明申請專 ® 利範圍及發明說明内容所作之簡單的等效變化與修飾，皆 仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一般串接式訊號傳輸系統之功能方塊示意圖； 圖2是本發明以隔離方式偵測斷路之串接式訊號傳輸 系統的第一較佳實施例之功能方塊示意圖； 圖3是該第一較佳實施例之一斷路偵測器的局部電路 示意圖；及 圖4是本發明以隔離方式偵測斷路之串接式訊號傳輸 系統的第二較佳實施例之斷路偵測器的局部電路示意圖。 10 201005688 【主要元件符號說明】 200.... ....電子設備 342·.·· 3........ •…主機單元 343.... 31 ….· ....控制器 344.... ....可動電極 32 .···· ....傳播單線 345.... ....固定電極 33 .···· ....斷路偵測線 35 ….· ....警報器 34 ....斷路偵測器 36 "… ....電源供應器 341...· ....發光二極體 4....... ....感應控制單元 11The sensing control units 4 are spaced apart along the propagation single line 32, and the control signals transmitted by the special (four) encoding are transmitted through the light weighting H and can be driven by the corresponding control signals to drive the corresponding electronic components. Since the sensing control unit 4 senses that the design of the control signal having the special (four) coded on the transmission single line is a conventional technique, and the creative focus of the present invention is not described in detail. When the contiguous signal transmission system is in normal use, the sensing control unit 4 can continuously receive the corresponding control signal on the propagation single line 32 and respectively drive the corresponding electronic device 2 to operate by the control signal, for example, the sound The output or the light is turned off. I is not disconnected when the single line 32 is propagated. The next step is to open the disconnection _ line % unbroken line I'. The alarm 35 does not send an alarm message when the single line 32 is propagated. And disconnection ~ 8 201005688 When the line 33 is disconnected, the disconnection detector 34 stops outputting the sensing signal due to power failure, thereby driving the alarm 35 to initiate an alarm i, thereby reminding the user that the single line 32 is disconnected. In order to perform the inspection immediately, in the present embodiment, the 'break detection line 33 is wound outside the propagation single line 32, so when the propagation single line 32 is broken, for example, when it is cut, it is bound to be cut along with the detection line 33. However, in the implementation, the open circuit detection line 33 is also φ extendable along the propagation single line 32 and directly adjacent to the side of the propagation single line 32 and is not limited thereto. As shown in FIG. 4, the difference between the second preferred embodiment of the serial signal transmission system for detecting an open circuit in an isolated manner and the first embodiment is only in the design of the open circuit detector 34. For convenience of explanation, only differences between the present embodiment and the first embodiment will be described below. In the present embodiment, the open circuit detector 34 is a relay having an electromagnetic coil 343, a magnetic force generated by the electromagnetic coil 343 to attract the pivoting movable electrode 344, and an electrical connection with the alarm 35 and A fixed electrode 345 electrically connected to the movable electrode 344. When the open circuit detecting line 33 is not broken, the electromagnetic coil 343 is energized to generate a magnetic force, and the movable electrode 344 elastically biased against the fixed electrode 345 is attracted to pivot off the fixed electrode 345. In this case, the alarm 35 will be powered off without an alert message. When the disconnection detecting line 33 is disconnected, the electromagnetic coil 343 is powered off and no magnetic force is generated. At this time, the movable electrode 344 is elastically swing-backed and electrically connected to the fixed electrode 345, so that the alarm 35 The power-on is enabled to send an alarm message, which in turn reaches 201005688 to remind the user to propagate the single line 33 for the purpose of disconnection. In summary, the short-distance line can be connected to the propagation single line 32 to break the line through the propagation single line 32. 3 3, and through the open circuit. The detector 3 4 can drive the alarm device 35 to send an alarm message when the disconnection detection line 33 is disconnected, and can be used when the propagation single line 32 and the open circuit detection line 33 are disconnected. Immediately, the user is alerted by the alarm message of the alarm device 35, so that the user can perform the maintenance immediately. Therefore, the object of the present invention can be achieved. However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent change according to the scope of the invention and the description of the invention. And modifications are still within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a functional block diagram of a general serial signal transmission system. FIG. 2 is a functional block diagram of a first preferred embodiment of a serial signal transmission system for detecting an open circuit in an isolated manner. 3 is a partial circuit diagram of a disconnection detector of the first preferred embodiment; and FIG. 4 is a circuit diagram of a second preferred embodiment of the serial signal transmission system for detecting an open circuit in an isolated manner according to the present invention; A schematic diagram of a partial circuit of the detector. 10 201005688 [Description of main component symbols] 200........electronic equipment 342·.·· 3........ •...host unit 343.... 31 ..... .... Controller 344...... movable electrode 32.····....propagation single line 345.....fixed electrode 33.····....break detection line 35 ..... .... siren 34 .... open circuit detector 36 ".... power supply 341...·....lighting diode 4... . . . sensing control unit 11