201028699 六、發明說明： . 【發明所屬之技術領域】 • 本發明涉及一種檢測系統，尤其涉及一種連接器檢測 系統。 【先前技術】 在通訊設備中，一套具有特定功能的設備經常是由多 種不同功能的模組或單板組成’這些不同的模組與單板， β在硬體上通過背板的連接器連接在一起，然後通過通訊匯 流排與一或複數主控單板組成完整的系統，從而實現設備 的各種功能。這些通過連接器與背板連接在一起的單板正 常啟動後，必須通過自檢檢測來判斷單板與連接器之間的 連接情況，以確保單板能夠正常運行。因此，需要找到一 種穩定可靠的方法來檢測單板與背板之間的連接器是否能 夠正常通訊。. 鬱 一般情況下，檢測連接器是否能夠正常通訊的方法主 要是通過檢測連接器的頭尾兩個檢測端是否能夠正常通訊 來實現的，如果頭尾兩個檢測端均能夠正常通訊，則判斷 整個連接器正常通訊，如果其中一檢測端無法正常通訊， 則判斷整個連接器通訊不正常。該檢測方法只能判斷連接 器的頭尾兩根訊號線的通訊情況，而無法判斷連接器内部 的複數根訊號線是否能夠正常傳輸訊號。且如果内部的某 一根訊號線發生被氧化之類的問題，使得連接器無法使 用，有可能需通過人工手段逐一檢測内部複數根訊號線的 201028699 檢測端的狀態才可判斷是哪根訊號線出現問題，當内部的 訊號線數量很多時，無疑會浪費很多時間來進行=測，導 致工作效率低下。 【發明内容】 有蓉於此，有必要提供-種能夠自動檢測連接器 訊號線連接狀態的連接器檢測系統。 Φ ❹ 一種連接器檢測系統，其用於檢測連接器的第 部與第二連接部是否正常通訊，所述第—連接部與第 接部上均具有對應的第—訊號線與第二訊號線。所述連 器檢測系統包括：匹配檢測模組，用於檢測所述 線的電平，並根據所述電平來_所述第—連接部與丄 f接：是否插緊，如檢測為低電平’則判斷第一連接部; - f接部插緊’如檢測為高電平，關斷第—連接部盘 έ j接部未插緊；控龍組，用於_所輕配檢測模 、、且的檢測結果，當第一連接部與第— 所述第-速接㈣連接 緊時’控制 通m…與第二連接部的第二訊號線 =於以及訊號檢測模組，其用於當所述連接器插緊時， :了：述第二訊號線上的電平。該訊號檢測 述第-連接部的第1㈣ί第—開關70件分別控制所 制單元，其^ ^ 下拉電阻接地；第二控 部的第、1數第—開關7^件分別控制所述第二連接 所⑽連接至—高電平端；㈣單元，其連接在 開關元件與下拉電阻之間，通過依次檢測所述下 201028699 拉電阻與高電平端之間的電平來判斷所述第二訊號線是否 .正常通訊，如果為高電平，則對應的第二訊號線通訊正常， .如果為低電平’則對應的第二訊號線出現故障。 與先前技術相比，本發明的連接器檢㈣統，通過依 次檢測所述連接器内的第二訊號線的電壓，來判斷所” 二訊號線是否能夠正常通訊。該連接器檢測系統能夠自動 提醒使用者出現故障的第二訊號線，大大提高工作效率。 ^【實施方式】 下面將結合附圖，對本發明作進一步的詳細說明。 如圖1及圖2所示，為本發明實施方式提供的連接器 檢測系統100’其用於檢測一連接器2〇〇的複數根訊號線是 否能夠正常通訊，所述連接器檢測系統1〇〇連接在所述複 數根訊號線上。 所述連接器200包括第一連接部4與第二連接部5，所 參述第-連接部4與第二連接部5分別包括複數根對應的訊 號線，所述sfl號線由複數根第一訊號線ό與第二訊號線7 組成。當所述第一連接部4與所述第二連接部5對應接觸 時，所述第一連接部4的第一訊號線6直接與所述第二連 接部5的第一訊號線6對應連接，所述第—連接部4的第 二訊號線7與所述第二連接部5的第二訊號線7對應連接。 所述連接器檢測系統1〇〇包括匹配檢測模組1〇、控制 模組20、訊號檢測模組30以及報告模組4〇。 所述匹配檢測模組10用於檢測所述第一訊號線6的電 6 201028699 部5電平㈣斷所述第-連接部4與第二連接 i - Γ二檢㈣低電平，則判斷第—連接部4與 連=5插緊，如檢測為高電平，則判斷第一 4 的 與最後一根訊號線。具體的/=器2〇0的第一根訊號線 蛐ϋ n ”體的，所述匹配檢測模組10包括接 =广上拉單元12以及結果處理單元 …用於選擇所述第二 第—訊號線6接地上= 的所述第:部4上的第—訊號線6,並分別將選擇 訊的電壓通過-上拉電阻r上拉。所述 於連接至所述第—連接部4上的第一訊 在ί箕’/λ所述第一訊號線6上的電平進行邏輯或處理， tn 平時，確定第一連接部4與第二連接部5 ❹ 已算結果為高電平時，確定第一連接部4與第 連接'5未插緊並進行告警。本實施方式中，高電平用T 不低電平用“0”表示，則所述姓果卢押m» _ 結果:能_ •二::理:二： =疋第一連接部4與第二連接部5已插緊；如為 或1，則確定第-連接部4與第二連接部5未插緊。 所述控制模組20用於根據所述匹配檢測模组、Μ ::果，當第一連接部4與第二連接部5插緊時，控制戶； 2-連接部4的第二訊號線7與第二連接部5的第二訊 遽線7通訊；當第—連接部4與第二連接部$未插緊時， 7 201028699 .第二戏線7 °第—㈣線7與第二連接部5的 一^號線7不進行通訊。具體的，所述控制模組加且有 * -控制電路，所述控制電路包括複數第—控二 對應的第二控制開關22，所述每個第一控制開關21包= 第一控制端21a、-第—訊號端训以及一第—輪出端 21c。複數所述第一控制端2U與所述匹配檢測模組⑺連 接’複數所述第-訊號端21b分別與所述第一連接部4的 囈第二訊號線7連接’複數所述第一輸出端〜形成兩個支 路，一支路與所述訊號檢測模組30連接，另一支路形成第 -訊號線7的第-槔21d ;所述每個第二控制開關22包括 一第二控制端22a、一第二訊號端22b以及一第二輸出端 22c。複數所述第二控制端22a均與所述匹配檢測模組 連接，複數所述第二訊號端22b分別與所述第二連接部5 的第二訊號線7連接，複數所述第二輸出端22c形成兩個 ❹ 支路，一支路與所述訊號檢測模組3〇連接，另一支路形成 第二連接部5的第二訊號線7的一第二埠22d。本實施方式 中，在所述連接器200已經插緊的情況下，所述第一控制 端21a與第二控制端22a同時獲得一高電平訊號“ Γ，，此 時，所述第一訊號端21b與所述第一輸出端21C導通，所 述第二訊號端22b與所述第二輸出端22c導通，所述第一 埠21d與所述第二埠22d連通。 所述訊號檢測模組30，其用於連接至所述控制模組 20 ’當所述連接器200插緊時，所述訊號檢測模組逐— 檢測所述第二訊號線7上的電平。所述訊號檢測模組3〇包 201028699 括一第一控制單元31、一第二控制單元32以及一檢測單元 、 33 ° 、所述第一控制單元31包括複數第一開關元件310以及 一第一控制晶片312,所述第一控制晶片312分別通過所述 複數第一開關元件310控制所述第一連接部4的第二訊號 線7通過一下拉電阻R1接地。具體的，所述第一控制晶片 312具有複數引腳，所述每個第一開關元件310包括一第三 ▲ 控制端310a、一第三訊號端310b以及一接地端310c，所 述第三控制端310a與所述控制晶片312的每個對應引腳連 接。所述第三訊號端310b與所述第一控制開關21的第一 輸出端21c連接，所述接地端310c與所述下拉電阻R1連 接。當所述第三控制端310a獲得一高電平訊號時，所述第 三訊號端310b與所述接地端310c導通，使得對應的第二 訊號線7接地；當所述第三控制端310a輸出一低電平訊號 時，所述第三訊號端310b與所述接地端310c斷開。 ⑩ 所述第二控制單元32包括複數第二開關元件320以及 一第二控制晶片322,所述第二控制晶片322分別通過所述 複數第二開關元件320控制所述第一連接部4的第二訊號 線7連接至一高電平端321。具體的，所述第二控制晶片 322具有複數引腳，所述每個第二開關元件320包括一第四 控制端320a、一第四訊號端320b以及一上拉端320c，所 述第四控制端320a對應與所述第二控制晶片322的每個引 腳連接，所述第四訊號端320b與所述第二控制開關22的 第二輸出端22c連接，所述上拉端320c與所述高電平端321 201028699 連接。本實施方式中，所述第二開關元件320的上拉端320c 、 通過一上拉電阻R2與所述高電平端321連接，以避免所述 . 高電平端321的訊號干擾所述第二訊號線7的訊號。當所 述第三控制端310a獲得一高電平訊號時，所述第三訊號端 310b與所述上拉端320c導通，使得所述第二連接部5的第 二訊號線7的電壓被上拉至所述高電平端321的電壓；當 所述第三控制端310a獲得一低電平訊號時，所述第三訊號 ▲端310b與所述上拉端320c斷開。 所述第一控制晶片312與所述第二控制晶片322均為 可編程式晶片，其均具有一時序電路（圖未示），該時序電 路根據所述引腳的順序同時依次輸出一高電平控制訊號至 所述第一開關元件310的第三控制端310a以及所述第二開 關元件320的第四控制端320a。 所述檢測單元33連接在所述第一開關元件310與下拉 電阻R1之間，其通過檢測所述下拉電阻R1與高電平端321 ⑩之間的電平來判斷所述連接器200是否通訊正常。具體的， 所述檢測單元33的電平即為所述接地端310c與上拉端 320c之間的電壓差，也就是當所述第一開關元件310及對 應的第二開關元件320均導通時，其中一根所述第二訊號 線7的電平。如果所述下拉電阻R1與高電平端321之間的 電壓差形成高電平，則說明所述上拉端320c的電壓訊號能 夠通過第二訊號線7傳輸至所述接地端310c，即對應的第 二訊號線7通訊正常；如果所述下拉電阻R1與高電平端 321之間的電壓差形成為低電平，則對應的第二訊號線7 201028699 出現故障，無法通訊。 、 所述檢測單元33還連接一處理單元330與一存儲單元 、331，所述處理單元330用於將所述下拉電阻R1與高電平 端321之間的電壓差處理為高電平或低電平，並分別用 “Γ與“0”表示。具體的，所述處理單元330内預先設 定有一標準電壓，當所述電壓差小於所述標準電壓時，確 認對應的第二訊號線7正常通訊並輸出“0” ，當所述電壓 差大於所述標準電壓時，確認對應的第二訊號線7發生故 障並輸出“Γ 。所述存儲單元331用於存儲所述處理單元 330獲得高電平的次數，以便統計出現故障的訊號線數量。 所述報告模組40用於與所述處理單元330以及所述存 儲單元331電連接，其用於當所述檢測單元33輸出低電平 以及所述存儲單元331統計出出現故障的第二訊號線7的 數量時，報告故障訊號。 本發明的連接器檢測系統100,通過依次檢測所述連接 ⑩器200内的第二訊號線7的電壓，來判斷所述第二訊號線7 是否能夠正常通訊。該連接器檢測系統100能夠自動提醒 使用者出現故障的第二訊號線7,大大提高工作效率。 另外，本領域技術人員可在本發明精神内做其他變 化，但是，凡依據本發明精神實質所做的變化，都應包含 在本發明所要求保護的範圍之内。 11 201028699 【圖式簡單說明】 、 圖1為本發明實施方式提供的連接器檢測系統的功能模 組圖； 圖2為實現圖1的連接器檢測系統功能的連接器的内部 電路圖。 【主要元件符號說明】 連接器檢測系統100 第一連接部 4 ®第二連接部5 第一訊號線 6 第二訊號線 Ί 匹配檢測模組 10 接地單元 11 上拉單元 12 結果處理單元 13 φ 控制模組 20 第一控制開關 21 第一控制端 21a 第一訊號端 21b 第一輸出端 21c 第一埠 21d 第二控制開關 22 第二控制端 22a 第二訊號端 22b 第一控制單元 31 第二控制單元 32 檢測單元 33 報告模組 40 連接器 200 第一開關元件 310 第三控制端 310a 第三訊號端 310b 接地端 310c 第一控制晶片 312 第二開即元件 320 第四控制端 320a 第四訊號端 320b 上拉端 320c 高電平端 321 第二控制晶片 322 處理單元 330 存儲單元 331 12 201028699 第二輸出端 22c 下拉電阻 R1 第二埠 22d 上拉電阻 R2 訊號檢測模組 30 參 ❿ 13201028699 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a detection system, and more particularly to a connector detection system. [Prior Art] In a communication device, a device with a specific function is often composed of a plurality of modules or boards of different functions. 'These different modules and boards, and the connector on the hardware through the back board. Connected together, and then through the communication bus and one or more master boards to form a complete system to achieve various functions of the device. After the boards connected to the backplane are properly started, the self-test must be used to determine the connection between the board and the connector to ensure that the board can operate normally. Therefore, it is necessary to find a stable and reliable method to detect whether the connector between the single board and the back board can communicate normally. Under normal circumstances, the method of detecting whether the connector can communicate normally is mainly realized by detecting whether the two detection ends of the connector can communicate normally. If both the detection ends of the head and the tail can communicate normally, then judging The entire connector communicates normally. If one of the detection terminals cannot communicate normally, it is judged that the communication of the entire connector is abnormal. The detection method can only judge the communication status of the two signal lines at the head and the tail of the connector, and cannot determine whether the complex root signal lines inside the connector can transmit signals normally. And if a certain internal signal line is oxidized and the connector is unusable, it may be necessary to manually check the status of the 201028699 detection end of the internal complex signal line one by one to determine which signal line appears. The problem is that when the number of internal signal lines is large, it will undoubtedly waste a lot of time to perform the test, resulting in inefficient work. SUMMARY OF THE INVENTION It is necessary to provide a connector detecting system capable of automatically detecting the connection state of a connector signal line. Φ ❹ A connector detecting system for detecting whether the first portion and the second connecting portion of the connector are in normal communication, and the first connecting portion and the connecting portion have corresponding first signal lines and second signal lines . The connector detecting system includes: a matching detecting module, configured to detect a level of the line, and according to the level, the first connecting portion is connected with the 丄f: whether the plugging is tight, if the detecting is low Level 'is judged the first connection part; -F connection part is inserted tightly' If it is detected as high level, the first connection part is closed, the connection part is not inserted tightly; the control group is used for _ light detection And a detection result of the mode, when the first connecting portion is connected to the first-speed-connecting (four), the second signal line of the control unit m and the second connecting portion is and the signal detecting module is For when the connector is plugged in, the level of the second signal line is described. The signal detecting the first (fourth)-th switch of the first-connecting portion controls the unit, and the ^^ pull-down resistor is grounded; the first and the first-number switch of the second control unit respectively control the second The connection (10) is connected to the -high-level end; (4) the unit is connected between the switching element and the pull-down resistor, and the second signal line is determined by sequentially detecting the level between the lower pull resistor and the high-level end of the lower 201028699 Whether it is normal communication, if it is high, the corresponding second signal line communication is normal, if it is low level, the corresponding second signal line is faulty. Compared with the prior art, the connector inspection system of the present invention determines whether the "two signal lines can communicate normally" by sequentially detecting the voltage of the second signal line in the connector. The connector detection system can automatically Reminding the user of the faulty second signal line, greatly improving the work efficiency. [Embodiment] The present invention will be further described in detail below with reference to the accompanying drawings. As shown in Fig. 1 and Fig. 2, an embodiment of the present invention is provided. The connector detecting system 100' is configured to detect whether a plurality of signal lines of a connector 2 are capable of normal communication, and the connector detecting system 1 is connected to the plurality of signal lines. The first connecting portion 4 and the second connecting portion 5 are included. The first connecting portion 4 and the second connecting portion 5 respectively include a plurality of corresponding signal lines, and the sfl line is composed of a plurality of first signal lines. The second signal line 7 is formed. When the first connecting portion 4 is in contact with the second connecting portion 5, the first signal line 6 of the first connecting portion 4 is directly connected to the second connecting portion 5 First signal Correspondingly, the second signal line 7 of the first connecting portion 4 is connected to the second signal line 7 of the second connecting portion 5. The connector detecting system 1 includes a matching detecting module 1 The control module 20, the signal detecting module 30, and the reporting module 4〇. The matching detecting module 10 is configured to detect the power of the first signal line 6 and the level 5 (4) of the first connection. When the portion 4 and the second connection i - Γ2 (4) are low level, it is judged that the first connection portion 4 is connected to the connection = 5, and if it is detected as the high level, the first and the last signal lines are judged. The first signal line 蛐ϋ n ” of the specific /= 2 〇 0, the matching detection module 10 includes a connection = wide pull unit 12 and a result processing unit ... for selecting the second The signal line 6 is grounded to the first signal line 6 on the first portion 4, and the voltage of the selection signal is pulled up by the pull-up resistor r, respectively. The level of the first signal connected to the first connection portion 4 on the first signal line 6 is logically ORed, and tn is determined to determine the first connection portion 4 and the first The second connecting portion 5 ❹ When the result is high, it is determined that the first connecting portion 4 and the first connecting portion 5 are not inserted and an alarm is issued. In the present embodiment, the high level T is not low level and is represented by "0", then the surname is Lulu m» _ Result: Energy _ • Two:: Reason: Two: = 疋 First connection part 4 and The second connecting portion 5 has been inserted; if it is 1, it is determined that the first connecting portion 4 and the second connecting portion 5 are not inserted. The control module 20 is configured to control the second signal line of the 2-connecting portion 4 when the first connecting portion 4 and the second connecting portion 5 are inserted according to the matching detecting module, 7 communicating with the second signal line 7 of the second connecting portion 5; when the first connecting portion 4 and the second connecting portion $ are not inserted, 7 201028699. The second line 7 ° - (4) line 7 and the second A line 7 of the connecting portion 5 does not communicate. Specifically, the control module includes a *-control circuit, and the control circuit includes a plurality of second control switches 22 corresponding to the second control switch, and each of the first control switches 21 includes a first control terminal 21a. , - the first signal training and one first - round end 21c. The first control terminal 2U is connected to the matching detection module (7). The plurality of first signal terminals 21b are respectively connected to the second signal line 7 of the first connection portion 4, and the first output is plural. The ends ~ form two branches, one path is connected to the signal detecting module 30, and the other branch forms a first - 21d of the first signal line 7; each of the second control switches 22 includes a second The control terminal 22a, a second signal terminal 22b and a second output terminal 22c. The plurality of second control terminals 22a are connected to the matching detection module, and the plurality of second signal terminals 22b are respectively connected to the second signal line 7 of the second connection portion 5, and the plurality of second output terminals are connected. 22c forms two 支 branches, one of which is connected to the signal detecting module 3A, and the other of which forms a second cymbal 22d of the second signal line 7 of the second connecting portion 5. In this embodiment, when the connector 200 is already inserted, the first control terminal 21a and the second control terminal 22a simultaneously obtain a high level signal “Γ, at this time, the first signal. The end 21b is electrically connected to the first output end 21C, the second signal end 22b is electrically connected to the second output end 22c, and the first port 21d is connected to the second port 22d. The signal detecting module 30, for connecting to the control module 20', when the connector 200 is plugged in, the signal detecting module detects the level on the second signal line 7 one by one. The group 3 package 201028699 includes a first control unit 31, a second control unit 32, and a detection unit 33°. The first control unit 31 includes a plurality of first switching elements 310 and a first control chip 312. The first control chip 312 controls the second signal line 7 of the first connection portion 4 to be grounded through the pull-up resistor R1 through the plurality of first switching elements 310. Specifically, the first control chip 312 has a plurality of references. a foot, each of the first switching elements 310 includes a third ▲ a control terminal 310a, a third signal terminal 310b, and a ground terminal 310c, wherein the third control terminal 310a is connected to each corresponding pin of the control chip 312. The third signal terminal 310b and the first The first output end 21c of the control switch 21 is connected, and the ground end 310c is connected to the pull-down resistor R1. When the third control end 310a obtains a high level signal, the third signal end 310b is The ground terminal 310c is turned on, so that the corresponding second signal line 7 is grounded; when the third control terminal 310a outputs a low level signal, the third signal terminal 310b is disconnected from the ground terminal 310c. The second control unit 32 includes a plurality of second switching elements 320 and a second control chip 322. The second control chip 322 controls the second signal lines of the first connecting portion 4 through the plurality of second switching elements 320, respectively. 7 is connected to a high-level terminal 321. Specifically, the second control chip 322 has a plurality of pins, and each of the second switching elements 320 includes a fourth control terminal 320a, a fourth signal terminal 320b, and an upper Pull end 320c, the fourth control end 3 20a is connected to each pin of the second control chip 322, and the fourth signal terminal 320b is connected to the second output end 22c of the second control switch 22, and the pull-up end 320c is high The level terminal 321 201028699 is connected. In this embodiment, the pull-up terminal 320c of the second switching element 320 is connected to the high-level terminal 321 through a pull-up resistor R2 to avoid the signal of the high-level terminal 321 Interfering with the signal of the second signal line 7. When the third control terminal 310a obtains a high level signal, the third signal terminal 310b is electrically connected to the pull-up end 320c, so that the second connection portion The voltage of the second signal line 7 of 5 is pulled up to the voltage of the high level terminal 321; when the third control terminal 310a obtains a low level signal, the third signal ▲ end 310b and the upper The pull end 320c is disconnected. The first control chip 312 and the second control chip 322 are both programmable chips, each of which has a sequential circuit (not shown), and the sequential circuit sequentially outputs a high voltage according to the order of the pins. The control signal is transmitted to the third control terminal 310a of the first switching element 310 and the fourth control terminal 320a of the second switching element 320. The detecting unit 33 is connected between the first switching element 310 and the pull-down resistor R1, and determines whether the connector 200 communicates normally by detecting the level between the pull-down resistor R1 and the high-level terminal 321 10 . . Specifically, the level of the detecting unit 33 is a voltage difference between the ground terminal 310c and the pull-up terminal 320c, that is, when the first switching element 310 and the corresponding second switching element 320 are both turned on. , the level of one of the second signal lines 7. If the voltage difference between the pull-down resistor R1 and the high-level terminal 321 forms a high level, it indicates that the voltage signal of the pull-up terminal 320c can be transmitted to the ground terminal 310c through the second signal line 7, that is, corresponding The second signal line 7 communicates normally; if the voltage difference between the pull-down resistor R1 and the high level terminal 321 forms a low level, the corresponding second signal line 7 201028699 fails and cannot communicate. The detecting unit 33 is further connected to a processing unit 330 and a storage unit 331 for processing a voltage difference between the pull-down resistor R1 and the high-level terminal 321 to a high level or a low level. And is respectively indicated by “Γ” and “0.” Specifically, a predetermined voltage is preset in the processing unit 330, and when the voltage difference is less than the standard voltage, the corresponding second signal line 7 is confirmed to be in normal communication. And outputting "0", when the voltage difference is greater than the standard voltage, it is confirmed that the corresponding second signal line 7 is faulty and outputs "Γ". The storage unit 331 is configured to store the number of times the processing unit 330 obtains a high level in order to count the number of faulty signal lines. The reporting module 40 is configured to be electrically connected to the processing unit 330 and the storage unit 331 for outputting a low level by the detecting unit 33 and counting the second signal that is faulty by the storage unit 331 When the number of lines 7 is reported, the fault signal is reported. The connector detecting system 100 of the present invention determines whether the second signal line 7 can communicate normally by sequentially detecting the voltage of the second signal line 7 in the connection device 200. The connector detection system 100 can automatically alert the user to the faulty second signal line 7, which greatly improves work efficiency. In addition, those skilled in the art can make other changes within the spirit of the invention, and all changes that are made according to the spirit of the invention should be included in the scope of the invention. 11 201028699 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a functional block diagram of a connector detecting system according to an embodiment of the present invention; FIG. 2 is an internal circuit diagram of a connector for realizing the function of the connector detecting system of FIG. 1. [Main component symbol description] Connector detection system 100 First connection portion 4 ® Second connection portion 5 First signal line 6 Second signal line 匹配 Match detection module 10 Ground unit 11 Pull-up unit 12 Result processing unit 13 φ Control Module 20 first control switch 21 first control end 21a first signal end 21b first output end 21c first 埠 21d second control switch 22 second control end 22a second signal end 22b first control unit 31 second control Unit 32 detection unit 33 report module 40 connector 200 first switching element 310 third control terminal 310a third signal terminal 310b ground terminal 310c first control chip 312 second opening element 320 second control terminal 320a fourth signal terminal 320b pull-up terminal 320c high-level terminal 321 second control chip 322 processing unit 330 memory unit 331 12 201028699 second output terminal 22c pull-down resistor R1 second 埠 22d pull-up resistor R2 signal detection module 30 ❿ 13