TWM477737U - Multi-loop backup communication system - Google Patents

Description

多迴路備援通訊系統Multi-loop backup communication system

本新型是關於一種通訊系統，特別是關於一種多迴路備援通訊系統。The present invention relates to a communication system, and more particularly to a multi-loop backup communication system.

按，通訊系統（如門禁、保全等系統）的品質優劣，除了在於通訊的速度與功能性之外，使用壽命與耐用性也是非常重要的因素之一。其中，在通訊系統中扮演資料與傳輸的介面通常是輸入/輸出模組（I/O Module），然而，目前輸入/輸出模組的發展方向主要著重在接點的擴充或控制，雖然接點的擴充能夠使輸入/輸出模組連接更多種類的產品，但各個產品與輸入/輸出模組之間的連接線路大多仍是採用單一通訊迴路設計，因此當任一通訊迴路發生故障時，就必須派維修人員前往修繕，不僅造成人力成本增加，且若產品時常需要維修也會影響公司形象與產品品質等問題。According to the quality of communication systems (such as access control, security systems, etc.), in addition to the speed and functionality of communication, life and durability are also very important factors. Among them, the interface for playing data and transmission in the communication system is usually the input/output module (I/O Module). However, the current development direction of the input/output module mainly focuses on the expansion or control of the contact, although the contact point The expansion enables the input/output modules to be connected to a wider variety of products, but the connection between each product and the input/output module is still mostly designed with a single communication loop, so when any communication loop fails, Maintenance personnel must be sent to repair, which not only increases labor costs, but also affects the company's image and product quality if the product is often repaired.

有鑑於上述問題，本創作提供一種多迴路備援通訊系統，包括上游主機、下游設備及中繼模組。其中上游主機包含第一通訊埠，下游設備包含第二通訊埠，中繼模組包含二上行埠及二下行埠，各上行埠分別連接至上游主機之第一通訊埠，各下行埠分別連接至下游設備之第二通訊埠，其中上行埠的其中之一及下行埠的其中之一為預設埠，其他上行埠及下行埠則為備援埠。藉此，當預設埠或連接預設埠之設備或線路損壞時，可由備源埠取代預設埠，而可繼續正常運行。因此，維修人員不需要立即前往排除錯誤，可減少人力成本。In view of the above problems, the present invention provides a multi-loop backup communication system, including an upstream host, a downstream device, and a relay module. The upstream host includes a first communication port, and the downstream device includes a second communication port. The relay module includes two uplink ports and two downlink ports, and each uplink port is respectively connected to the first communication port of the upstream host, and each downlink port is respectively connected to the The second communication port of the downstream device, wherein one of the uplink ports and one of the downlink ports are preset, and the other uplink ports and downlink ports are backup devices. Thereby, when the device or the line that is preset or connected to the preset device is damaged, the preset device can be replaced by the backup source, and the normal operation can be continued. Therefore, maintenance personnel do not need to go immediately to eliminate errors, which can reduce labor costs.

於一實施例中，多迴路備援通訊系統更可包括另一中繼模組，二中繼模組之其中之一的上行埠連接至上游主機其中之一，二中繼模組中之另一者的上行埠連接至另一上游主機，且二中繼模組的其中一下行埠連接至二下游設備其中之一，另一中繼模組中的下行埠連接至另一下游設備，其中二中繼模組中的其中之一預設為工作狀態，另一中繼模組預設為備援狀態。In an embodiment, the multi-loop backup communication system may further include another relay module, wherein one of the two relay modules is connected to one of the upstream hosts, and the other of the two relay modules One of the uplink ports is connected to another upstream host, and one of the two relay modules is connected to one of the two downstream devices, and the downstream port of the other relay module is connected to another downstream device, wherein One of the two relay modules is preset to be in a working state, and the other relay module is preset to a standby state.

其中，上述下游設備可分別為其他中繼模組。或者，下游設備可為門禁卡機、保全感測器或家電設備。The downstream devices may be other relay modules. Alternatively, the downstream device can be an access card machine, a security sensor, or a home appliance.

其中，上述第一通訊埠與第二通訊埠可支援相同的通訊協定，而所述通訊協定可為非同步式串列傳輸介面(Universal Asynchronous Receiver/Transmitter)。The first communication port and the second communication port can support the same communication protocol, and the communication protocol can be a Universal Asynchronous Receiver/Transmitter.

綜上所述，本創作透過中繼模組的二上行埠分別連接二上游主機，二下行埠分別連接至二下游設備，且其中上行埠的其中之一及下行埠的其中之一為預設埠，其他上行埠及下行埠則為備援埠，藉此，俾可令中繼模組偵測到其中之一預設埠之通訊失效時，例如上游主機、中繼模組或預設埠故障，或者連接於上游主機與預設埠之線路損壞而導致預設埠通訊失效，即切換使用對應之備援埠對外通訊，達到增加通訊系統的使用壽命與耐用性，以及降低維修人力成本而提昇客戶滿意度等實用進步性。In summary, the creation is connected to the two upstream hosts through the two uplink ports of the relay module, and the second downlink ports are respectively connected to the two downstream devices, and one of the uplink ports and one of the downlink ports are preset.埠, other uplinks and downlinks are backup devices, so that the relay module can detect when one of the preset ports fails, such as the upstream host, relay module or preset port. If the fault occurs, or the line connected to the upstream host and the preset port is damaged, the default communication failure occurs, that is, the corresponding backup and external communication are switched, thereby increasing the service life and durability of the communication system, and reducing the maintenance labor cost. Improve practical progress such as customer satisfaction.

另一方面，所述第一通訊埠與第二通訊埠支援相同的通訊協定，令上行埠及下行埠能夠使用相同的傳輸介面，令切換備援時不需透過其他裝置作訊號轉換，而能在架構最簡易且成本最節省的情況下，達到系統備援的功能與目的。On the other hand, the first communication port and the second communication port support the same communication protocol, so that the uplink port and the downlink port can use the same transmission interface, so that the switchover backup does not need to be converted by other devices, but can The function and purpose of system backup are achieved in the simplest and most cost-effective architecture.

以下在實施方式中詳細敘述本創作之詳細特徵以及優點，其內容足以使任何熟習相關技藝者瞭解本創作之技術內容並據以實施，且根據本說明書所揭露之內容、申請專利範圍及圖式，任何熟習相關技藝者可輕易地理解本創作相關之目的及優點。The detailed features and advantages of the present invention are described in detail below in the embodiments, which are sufficient to enable any skilled artisan to understand the technical contents of the present invention and implement it according to the contents, the scope of the patent application and the drawings. Anyone familiar with the relevant art can easily understand the purpose and advantages of this creation.

請參第1圖所示，本創作係提供一種多迴路備援通訊系統1，包括上游主機10、下游設備20及中繼模組30所構成。其中上游主機10須具備有通訊能力，例如可透過無線（Wifi、Bluetooth、ZigBee）與有線（UART）傳輸訊號之功能，而上游主機10具體上可採用數位影音錄放影機（DVR）、網路型影音錄放影機（NVR）、網路型監控主機、個人電腦或行動通訊裝置等等。下游設備20具體實施上則可為門禁卡機、保全感測器或家電設備等等，但並不侷限於此，亦可為其他中繼模組30。As shown in FIG. 1 , the present invention provides a multi-loop backup communication system 1 including an upstream host 10, a downstream device 20, and a relay module 30. The upstream host 10 must have communication capabilities, such as wireless (Wifi, Bluetooth, ZigBee) and wired (UART) transmission signals, while the upstream host 10 can specifically use a digital video recorder (DVR), network Video Recorder (NVR), network monitoring host, personal computer or mobile communication device, etc. The downstream device 20 may be an access card machine, a security sensor, or a home appliance, but is not limited thereto, and may be another relay module 30.

上游主機10可包含有第一通訊埠11，下游設備20則可包含有第二通訊埠21，而中繼模組30包含有二上行埠31及二下行埠32，二上行埠31分別連接至上游主機10的第一通訊埠11，二下行埠32分別連接至下游設備20的第二通訊埠21，而其中一上行埠31與下行埠32可為預設埠，其他上行埠31與下行埠32則可為備援埠。在此，連接於預設埠之線路以實線表示，而連接備援埠之線路則以虛線表示，藉此構成雙通訊迴路備援型態。而預設埠所連接之上游主機10、下游設備20及中繼模組30可預設為工作狀態，連結於備援埠之上游主機10、下游設備20及中繼模組30則預設為備援狀態。The upstream host 10 may include a first communication port 11, the downstream device 20 may include a second communication port 21, and the relay module 30 includes two uplink ports 31 and two downlink ports 32, and the second uplink ports 31 are respectively connected to The first communication port 11 of the upstream host 10 and the second downlink port 32 are respectively connected to the second communication port 21 of the downstream device 20, and one of the uplink ports 31 and the downlink port 32 can be preset, and other uplink ports 31 and downlink ports. 32 can be used for backup. Here, the line connected to the preset 埠 is indicated by a solid line, and the line connecting the backup 埠 is indicated by a broken line, thereby constituting a dual communication loop backup type. The upstream host 10, the downstream device 20, and the relay module 30 connected to the preset port may be preset to be in an active state, and the upstream host 10, the downstream device 20, and the relay module 30 connected to the backup device are preset to Backup status.

藉此，當中繼模組30偵測到預設埠之通訊失效時，即可切換使用對應之備援埠對外通訊，達到增加通訊系統的使用壽命與耐用性，以及降低維修人力成本而提昇客戶滿意度等優點。In this way, when the relay module 30 detects that the communication of the preset port fails, the corresponding backup external communication can be switched, thereby increasing the service life and durability of the communication system, and reducing the maintenance labor cost and improving the customer. Satisfaction and other advantages.

如第2圖所揭，本創作多迴路備援通訊系統1更可包括另一中繼模組30，而其中一個中繼模組30的上行埠31連接至二上游主機10其中之一，另一個中繼模組30的上行埠31則連接至另一上游主機10，且其中一個中繼模組30的下行埠32連接至二下游設備20其中之一，另一個中繼模組30的下行埠32連接至另一下游設備20，而形成多迴路備援架構，且其中一個中繼模組30可預設為工作狀態，另一中繼模組30可預設為備援狀態。藉此，無論是上游主機10、中繼模組30、上行埠31或下行埠32有損壞而導致通訊無效的情形時，都能切換使用對應之上游主機10、中繼模組30、上行埠31或下行埠32接替對外通訊，使多迴路備援通訊系統1能夠繼續運作。上述實施例僅為說明之用，並不侷限於此，上游主機10、中繼模組30、下游設備20或上述三者通訊埠之數量上的變化，均應在本創作技術特徵之範疇涵蓋範圍內，進一步舉例來說，上游主機10更可包括第三通訊埠，以透過第一通訊埠11連接一中繼模組30，並透過第三通訊埠連接另一中繼模組30，或者多迴路備援通訊系統1可包括有複數個下游設備20。As shown in FIG. 2, the multi-circuit backup communication system 1 of the present invention may further include another relay module 30, and the upstream port 31 of one of the relay modules 30 is connected to one of the two upstream hosts 10, and The upstream port 31 of one relay module 30 is connected to another upstream host 10, and the downstream port 32 of one of the relay modules 30 is connected to one of the two downstream devices 20, and the other relay module 30 is downlinked. The 埠32 is connected to another downstream device 20 to form a multi-loop backup architecture, and one of the relay modules 30 can be preset to be in an active state, and the other relay module 30 can be preset to a backup state. Therefore, whether the upstream host 10, the relay module 30, the uplink port 31, or the downlink port 32 is damaged and the communication is invalid, the corresponding upstream host 10, the relay module 30, and the uplink can be switched. 31 or downlink 埠 32 takes over the external communication, so that the multi-circuit backup communication system 1 can continue to operate. The above embodiments are for illustrative purposes only, and are not limited thereto. The number of changes in the upstream host 10, the relay module 30, the downstream device 20, or the above three communication ports should be covered in the scope of the present technical features. Further, for example, the upstream host 10 may further include a third communication port to connect a relay module 30 through the first communication port 11 and connect another relay module 30 through the third communication port, or The multi-loop backup communication system 1 can include a plurality of downstream devices 20.

另外，如第3圖所揭，上述中繼模組30具體組成更可包括通訊單元33、控制單元34及記憶單元35，其中通訊單元33可包括無線通訊介面331（Wifi、Bluetooth、ZigBee）與有線通訊介面332（UART）；記憶單元35可為可複寫唯讀記憶體 （EEPROM）、快閃記憶體（FLASH RAM）或內嵌式記憶體（FRAM），用以儲存通訊資料；而控制單元34可為微控制器(MCU)或中央控制單元（CPU），具體上可包括有類比/數位轉換裝置（ADC）、計時器（Timer）與計數器（Counter）等，藉以令中繼模組30能夠測得通訊延遲時間、通訊回報時間及通訊逾時時間等參數，而能夠進一步判斷通訊狀態是否異常，另外，亦可透過類比/數位轉換裝置（ADC）判讀回授之電壓值是否為預期的數值，以偵測通訊狀態是否異常，而當中繼模組30偵測通訊狀態異常時，即切換使用對應之備援埠。另外，中繼模組30可包括有數位輸入/輸出單元36與類比輸入/輸出單元37，使中繼模組30能夠支援不同的訊號格式。In addition, as shown in FIG. 3, the specific composition of the foregoing relay module 30 may further include a communication unit 33, a control unit 34, and a memory unit 35. The communication unit 33 may include a wireless communication interface 331 (Wifi, Bluetooth, ZigBee) and Wired communication interface 332 (UART); memory unit 35 can be rewritable read only memory (EEPROM), flash memory (FLASH RAM) or embedded memory (FRAM) for storing communication data; and control unit The 34 may be a microcontroller (MCU) or a central control unit (CPU), and may specifically include an analog/digital conversion device (ADC), a timer, a counter, etc., so that the relay module 30 is provided. It can measure parameters such as communication delay time, communication return time and communication timeout time, and can further judge whether the communication status is abnormal. In addition, it can also judge whether the feedback voltage value is expected through the analog/digital converter (ADC). The value is used to detect whether the communication status is abnormal. When the relay module 30 detects that the communication status is abnormal, the corresponding backup device is switched. In addition, the relay module 30 can include a digital input/output unit 36 and an analog input/output unit 37 to enable the relay module 30 to support different signal formats.

如第4圖所揭，上游主機10還可包含網路通訊埠12，以經由區域網路彼此通訊而交換自中繼模組30取得之資料，舉例來說，於工作狀態的上游主機10自中繼模組30取得資料後，可即時透過網路通訊埠12將所取得的資料傳輸至於備援狀態的上游主機10，使工作狀態的上游主機10產生異常而切換使用備援狀態的上游主機10時，兩者的資料能夠相互一致，使得系統運作上不會產生不同步、異常或錯誤等情形。As shown in FIG. 4, the upstream host 10 may further include a network communication port 12 for exchanging data acquired from the relay module 30 via the regional network, for example, the upstream host 10 in the working state After obtaining the data, the relay module 30 can immediately transmit the acquired data to the upstream host 10 in the backup state through the network communication port 12, and cause the upstream host 10 in the working state to generate an abnormality and switch to the upstream host in the backup state. At 10 o'clock, the data of the two can be consistent with each other, so that the system will not be out of sync, abnormal or wrong.

復如第4圖所揭，上游主機10更可通訊連接有資料庫主機40，在此，上游主機10與資料庫主機40之間可透過區域網路通訊連接，但並不以此為限。所述資料庫主機40可為雲端資料庫或主機資料庫，令上游主機10、下游設備20或中繼模組30的通訊資料能夠傳送至資料庫主機40儲存。舉例來說，當上游主機10為數位影音錄放影機（DVR）或網路型影音錄放影機（NVR），而下游設備20為門禁卡機時，除了可將門禁相關資料傳送至資料庫主機40之外，數位影音錄放影機（DVR）或網路型影音錄放影機（NVR）所取得的影像資料亦可傳送至資料庫主機40儲存，如此一來，當下游設備20更換時，可由資料庫主機40回傳門禁相關資料與設定，使多迴路備援通訊系統1運作更加方便、順暢。As shown in FIG. 4, the upstream host 10 is more communicably connected to the database host 40. Here, the upstream host 10 and the database host 40 can communicate through the area network communication, but not limited thereto. The database host 40 can be a cloud database or a host database, so that the communication data of the upstream host 10, the downstream device 20, or the relay module 30 can be transmitted to the database host 40 for storage. For example, when the upstream host 10 is a digital video recorder (DVR) or a network video recorder (NVR), and the downstream device 20 is an access card player, in addition to transmitting the access control related data to the database host In addition to 40, the image data obtained by the digital video recorder (DVR) or the network video recorder (NVR) can also be transmitted to the database host 40 for storage, so that when the downstream device 20 is replaced, The database host 40 returns the access control related data and settings, making the multi-circuit backup communication system 1 more convenient and smooth.

其中該第一通訊埠11與該第二通訊埠21可支援相同的通訊協定，而所述通訊協定可為並列式傳輸介面或串列式傳輸介面，在此，本創作第一通訊埠11與該第二通訊埠21所支援的較佳通訊協定為非同步式串列傳輸介面(Universal Asynchronous Receiver/Transmitter)，例如RS-232、RS-422或 RS-485等序列通訊界面，而透過上述第一通訊埠11與該第二通訊埠21可支援相同的通訊協定，令上行埠31及下行埠32能夠使用相同的傳輸介面（即上述非同步式串列傳輸介面），令切換備援時不需透過其他裝置作訊號轉換，而能在架構最簡易且成本最節省的情況下，達到系統備援的功能與目的。The first communication port 11 and the second communication port 21 can support the same communication protocol, and the communication protocol can be a parallel transmission interface or a serial transmission interface. Here, the first communication port 11 of the creation is The preferred communication protocol supported by the second communication port 21 is a Universal Asynchronous Receiver/Transmitter, such as a serial communication interface such as RS-232, RS-422 or RS-485. A communication port 11 and the second communication port 21 can support the same communication protocol, so that the uplink port 31 and the downlink port 32 can use the same transmission interface (that is, the above-mentioned asynchronous serial port transmission interface), so that the switching backup is not It is necessary to perform signal conversion through other devices, and the functions and purposes of system backup can be achieved in the simplest and most cost-effective manner.

綜上所述，本創作透過中繼模組的二上行埠分別連接二上游主機，二下行埠分別連接至二下游設備，且其中上行埠的其中之一及下行埠的其中之一為預設埠，其他上行埠及下行埠則為備援埠，藉此，俾可令中繼模組偵測到其中之一預設埠之通訊失效時，例如上游主機、中繼模組或預設埠故障，或者連接於上游主機與預設埠之線路損壞而導致預設埠通訊失效，即切換使用對應之備援埠對外通訊，達到增加通訊系統的使用壽命與耐用性，以及降低維修人力成本而提昇客戶滿意度等實用進步性。In summary, the creation is connected to the two upstream hosts through the two uplink ports of the relay module, and the second downlink ports are respectively connected to the two downstream devices, and one of the uplink ports and one of the downlink ports are preset.埠, other uplinks and downlinks are backup devices, so that the relay module can detect when one of the preset ports fails, such as the upstream host, relay module or preset port. If the fault occurs, or the line connected to the upstream host and the preset port is damaged, the default communication failure occurs, that is, the corresponding backup and external communication are switched, thereby increasing the service life and durability of the communication system, and reducing the maintenance labor cost. Improve practical progress such as customer satisfaction.

雖然本創作的技術內容已經以較佳實施例揭露如上，然其並非用以限定本創作，任何熟習此技藝者，在不脫離本創作之精神所作些許之更動與潤飾，皆應涵蓋於本創作的範疇內，因此本創作之保護範圍當視後附之申請專利範圍所界定者為準。Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art, and some modifications and refinements that do not depart from the spirit of the present invention should be included in the creation. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application.

1‧‧‧多迴路備援通訊系統
10‧‧‧上游主機
11‧‧‧第一通訊埠
12‧‧‧網路通訊埠
20‧‧‧下游設備
21‧‧‧第二通訊埠
30‧‧‧中繼模組
31‧‧‧上行埠
32‧‧‧下行埠
33‧‧‧通訊單元
331‧‧‧無線通訊介面
332‧‧‧有線通訊介面
34‧‧‧控制單元
35‧‧‧記憶單元
36‧‧‧數位輸入/輸出單元
37‧‧‧類比輸入/輸出單元
40‧‧‧資料庫主機1‧‧‧Multi-circuit backup communication system
10‧‧‧Upstream host
11‧‧‧First Communication埠
12‧‧‧Network Communication埠
20‧‧‧ downstream equipment
21‧‧‧Second Communications埠
30‧‧‧Relay module
31‧‧‧Upstream
32‧‧‧ Downstream
33‧‧‧Communication unit
331‧‧‧Wireless communication interface
332‧‧‧Wired communication interface
34‧‧‧Control unit
35‧‧‧ memory unit
36‧‧‧Digital Input/Output Unit
37‧‧‧ analog input/output unit
40‧‧‧Database Host

[第1圖]係本創作多迴路備援通訊系統之系統方塊圖； [第2圖]係本創作多迴路備援通訊系統之另一實施例圖； [第3圖]係本創作中繼模組之組成方塊圖； [第4圖]係本創作多迴路備援通訊系統更包括有資料庫主機之實施例圖。[Fig. 1] is a system block diagram of the multi-circuit backup communication system of the present creation; [Fig. 2] is another embodiment of the present multi-circuit backup communication system; [Fig. 3] is a creative relay The block diagram of the module; [Fig. 4] The multi-circuit backup communication system of the present invention further includes an embodiment diagram of the database host.

1‧‧‧多迴路備援通訊系統 1‧‧‧Multi-circuit backup communication system

10‧‧‧上游主機 10‧‧‧Upstream host

11‧‧‧第一通訊埠 11‧‧‧First Communication埠

20‧‧‧下游設備 20‧‧‧ downstream equipment

21‧‧‧第二通訊埠 21‧‧‧Second Communications埠

30‧‧‧中繼模組 30‧‧‧Relay module

31‧‧‧上行埠 31‧‧‧Upstream

32‧‧‧下行埠 32‧‧‧ Downstream

Claims (10)

一種多迴路備援通訊系統，包括： 二上游主機，各該上游主機包含一第一通訊埠； 二下游設備，各該下游設備包含一第二通訊埠；及 一中繼模組，包含二上行埠及二下行埠，該二上行埠分別連接至該二上游主機之該第一通訊埠，該二下行埠分別連接至該二下游設備之該第二通訊埠，其中該二上行埠的其中之一及該二下行埠的其中之一為預設埠，其他之該上行埠及該下行埠為備援埠，該中繼模組偵測到其中之一該預設埠之通訊失效時，切換使用對應之該備援埠對外通訊。A multi-loop backup communication system, comprising: two upstream hosts, each of the upstream hosts includes a first communication port; two downstream devices, each of the downstream devices includes a second communication port; and a relay module comprising two uplinks And the second uplink port is connected to the first communication port of the two upstream hosts, and the two downlink ports are respectively connected to the second communication port of the two downstream devices, wherein the two uplink ports are respectively And one of the two downlinks is a preset, and the other uplink and the downlink are backup, and the relay module detects that one of the preset ports fails to communicate. Use the corresponding backup 埠 external communication. 如請求項1所述之多迴路備援通訊系統，其中該二下游設備分別為其他之該中繼模組。The multi-loop backup communication system according to claim 1, wherein the two downstream devices are respectively the other relay modules. 如請求項1所述之多迴路備援通訊系統，其中該二下游設備為二門禁卡機、二保全感測器或二家電設備。The multi-loop backup communication system according to claim 1, wherein the two downstream devices are two-door card-locking devices, two-guarantee sensors, or two home appliances. 如請求項1所述之多迴路備援通訊系統，更包括另一該中繼模組，該二中繼模組之其中之一之該上行埠連接至該二上游主機中之一，該二中繼模組中之另一者之該上行埠連接至另一該上游主機，且該二中繼模組之其中之一之該下行埠連接至該二下游設備其中之一，該二中繼模組中之另一者之該下行埠連接至另一該下游設備，其中該二中繼模組中的其中之一預設為工作狀態，另一該中繼模組預設為備援狀態。The multi-loop backup communication system according to claim 1, further comprising another one of the relay modules, wherein the uplink port of one of the two relay modules is connected to one of the two upstream hosts, the second The uplink port of the other of the relay modules is connected to another upstream host, and the downlink port of one of the two relay modules is connected to one of the two downstream devices, the two relays The downlink connection of the other of the modules is connected to another downstream device, wherein one of the two relay modules is preset to be in an active state, and the other of the relay modules is preset to a backup state. . 如請求項4所述之多迴路備援通訊系統，其中該二下游設備分別為其他之該中繼模組。The multi-loop backup communication system according to claim 4, wherein the two downstream devices are respectively the other relay modules. 如請求項4所述之多迴路備援通訊系統，其中該二下游設備為二門禁卡機、二保全感測器或二家電設備。The multi-loop backup communication system according to claim 4, wherein the two downstream devices are a two-door card machine, a second-protection sensor or two home appliances. 如請求項1所述之多迴路備援通訊系統，其中各該二上游主機還包含一網路通訊埠，以經由一區域網路彼此通訊而交換自該中繼模組取得之資料。The multi-loop backup communication system of claim 1, wherein each of the two upstream hosts further comprises a network communication port for exchanging data acquired from the relay module by communicating with each other via a regional network. 如請求項1所述之多迴路備援通訊系統，其中該第一通訊埠與該第二通訊埠係支援相同的通訊協定。The multi-loop backup communication system of claim 1, wherein the first communication port and the second communication system support the same communication protocol. 如請求項8所述之多迴路備援通訊系統，其中該第一通訊埠與該第二通訊埠所支援之通訊協定係為非同步式串列傳輸介面(Universal Asynchronous Receiver/Transmitter)。The multi-loop backup communication system according to claim 8, wherein the communication protocol supported by the first communication port and the second communication port is a Universal Asynchronous Receiver/Transmitter. 如請求項1所述之多迴路備援通訊系統，其中該二上游主機為數位影音錄放影機（DVR）、網路型影音錄放影機（NVR）、網路型監控主機、個人電腦或行動通訊裝置。The multi-loop backup communication system according to claim 1, wherein the two upstream hosts are digital video recorders (DVRs), network video recorders (NVRs), network type monitoring hosts, personal computers or mobile phones. Communication device.