TW201022695A - USB component tester - Google Patents

USB component tester Download PDF

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Publication number
TW201022695A
TW201022695A TW97148422A TW97148422A TW201022695A TW 201022695 A TW201022695 A TW 201022695A TW 97148422 A TW97148422 A TW 97148422A TW 97148422 A TW97148422 A TW 97148422A TW 201022695 A TW201022695 A TW 201022695A
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Taiwan
Prior art keywords
usb interface
resistor
connector
interface component
data
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TW97148422A
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Chinese (zh)
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TWI409483B (en
Inventor
Zhen-Shan Cui
Lian-Zhong Gong
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Hon Hai Prec Ind Co Ltd
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Priority to TW97148422A priority Critical patent/TWI409483B/en
Publication of TW201022695A publication Critical patent/TW201022695A/en
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Publication of TWI409483B publication Critical patent/TWI409483B/en

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Abstract

A universal serial bus (USB) component tester includes a USB port, a connector, first and second resistors, and a first indicator. The connector is configured for connecting to a plug of a USB component. A power terminal of the connector is connected to a first data terminal of the connector, and also connected to a second data terminal and a ground terminal of the connector via the first resistor. A power terminal of the USB port is connected to a power supply. A first data terminal of the USB port is connected to a first terminal of the first indicator via the second resistor. A second terminal of the first indicator is connected to a second data terminal of the USB port, and a ground terminal of the USB port is grounded.

Description

201022695 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種USB ( Universal Serial Bus，通用 串列匯流排）介面元件測試裝置。 【先前技術】 目前主機板一般都採用支援USB功能之控制晶片 組’主機板上也安裝有USB介面，而且主機板上還預留 有USB插針（一般為8針或9針，可支援一對USB介面）， ©透過將一 USB介面元件與預留之USB插針相連來提供額 外之後置USB介面或前置USB介面，方便用戶使用。 如圖1所示，習知之USB介面元件1〇〇通常包括一 8孔插頭P1、一對與該插頭P1相連之USB介面p2&p3, 該插頭P1豎向排列之每4個孔為一組且每組對應與一 USB介面之電源端、第一資料端、第二資料端及接地端 對應進行連接，該插頭P1之插孔可對應安裝於主機板之 USB插針上，該兩USB介面打及趵可作為後置USB介 前置刪介面供用戶使用。如果該腦介面元件100 之插碩P1與USB介面P9菸Μ 頭Ρ1夺⑽八品 及之内部連線錯誤或者插 碩Ρ1和USB介面Ρ2及夕σ 介面元件正常工作 質不良’都將影響臓 【發明内容】 鑒"於上述内容，有必要描板 ^ 裝置，可對腦介面有元一種腦介面元件測試 件能夠正常工作。件進订測試，以保證職介面元 -種USB介面元件測試裝置，包括一⑽介面、一 6 201022695 •連接器、一第一電阻及一第二電阻、一第一指示裝置， 該連接器用於與一 USB介面元件之一插頭連接，該連接 器之第一電源端連接該連接器之第一資料端，還透過該 第一電阻連接該連接器之第二資料端及第一接地端，該 USB介面之電源端連接一電源，該USB介面之第一資料 端透過該第二電阻連接該第一指示裝置之第一端，該第 一指示裝置之第二端連接該USB介面之第二資料端，該 USB介面之接地端接地。 ❹ 該USB介面元件測試裝置透過與USB介面元件相連 對USB介面元件進行測試’當該USB介面元件工作正常 時’才有電流流過第一指示裝置，從而實現指示USB介 面元件是否能夠正常工作。 【實施方式】 請參閱圖2，本發明USB介面元件測試裝置200之 較佳實施方式包括一箱體202、設置於該箱體202外部之 一電源開關204、一 USB介面Pa、一針式連接器j；[、發 ❿光二極體D1及D2。該USB介面pa用於透過一 USB轉 接線選擇與圖1中之USB介面元件1〇〇之該兩USB介面 P2及P3中之一個對應連接，該針式連接器η為一 8針 連接器，用於與圖1中之USB介面元件1〇〇之插頭ρι 相連。該發光二極體D1用於指示所測試之USB介面元 件100是否正常工作，該發光二極體D2用於指示USB 介面元件測試裝置200是否上電工作。 該兩發光二極體D1及D2作為指示裝置，在其他實 施方式中，也可採用其他類型之指示裝置，例如蜂鳴器 201022695 等。 ~ 請參閱圖3，本發明USB介面元件測試裝置之較佳 '實施方式還包括設置於該箱體202内部之電阻R1-R4、兩 二極體Da及Db。該USB介面Pa之電源端VI透過該電 源開關204連接一電源Vc (本實施方式為設置於該箱體 202内部之電池，也可透過電源線連接外部電源），該USB 介面Pa之電源端VI還透過該電阻R3連接發光二極體 D2之陽極，發光二極體D2之陰極接地。該USB介面Pa ❿之資料端Datl +透過該電阻R2連接該發光二極體D1之 陽極，該發光二極體D1之陰極連接該USB介面Pa之資 料端Datl-，該USB介面Pa之接地端GND1接地。該針 式連接器Π之電源端V2連接該二極體Da之陽極，該二 極體Da之陰極連接該針式連接器J1之資料端Dat2+，還 透過該電阻R1連接該針式連接器J1之資料端Dat2-及接 地端GND2,該針式連接器J1之電源端V3連接該二極體 Db之陽極，該二極體Db之陰極連接該針式連接器Π之 ❿資料端Dat3+，還透過該電阻R4連接該針式連接器J1之 資料端Dat3-及接地端GND3。 由於所測試之USB介面元件100内部電路之電容帶 電，因此當將USB介面元件100之插頭P1插入該針式連 接器J1中時，該兩電阻R1和R4用於給該電容放電，以 消除電容帶電引起測試過程中之錯誤判斷。該兩二極體 Da及Db用於防止圖1中之USB介面元件100之插頭P1 插接圖2中之針式連接器J1時插反，即如果插反時，可 阻止電流從USB介面元件測試裝置200流過USB介面元 8 201022695 •件 100 。 在本實施方式中’該兩電阻R1及R4之電阻值均為 1 2000歐姆，該兩電阻R2及r3之電阻值均為2〇〇歐姆。 該電源Vc之電壓為5伏特之直流電壓。在其他實施方式 中，該USB介面pa之數量不限於一個及該針式連接器 J1之針數不限於8根’可根據不同型號USB介面元件1〇〇 之插頭之數量及結構對應進行調整。 再參閱圖4，具體測試過程之工作原理如下： ⑩ 當使用USB介面元件測試裝置200測試該USB介面 元件100工作是否正常時，首先將USB介面元件1〇〇之 插頭P1正確插入該針式連接器jl中’即針式連接器Η 之電源端 V2 及 V3、資料端 Dat2+、Dat3 +、Dat2-及 Dat3-、 接地端GND2及GND3與USB介面P2或P3建立連接， 然後將一良好之USB轉接線400之一 USB插頭402與 USB介面Pa相連，將另一 USB插頭404與USB介面P2 或P3中之一個相連。以將USB插頭404與USB介面P2 ❹相連為例’則針式連接器η之電源端V2、資料端Dat2+ 及Dat2-、接地端GND2透過USB介面P2、USB轉接線 400與USB介面pa建立連接，最後開啟電源開關2〇4， 該發光二極體D2發光’表示USB介面元件測試裝置200 已上電工作。201022695 IX. Description of the Invention: [Technical Field] The present invention relates to a USB (Universal Serial Bus) interface component testing device. [Prior Art] At present, the motherboard usually adopts a control chipset that supports USB functions. The USB interface is also installed on the motherboard, and a USB pin is reserved on the motherboard (usually 8 or 9 pins, which can support one). For the USB interface, © provides an additional rear USB interface or front USB interface by connecting a USB interface component to a reserved USB pin for user convenience. As shown in FIG. 1, the conventional USB interface component 1A generally includes an 8-hole plug P1, a pair of USB interfaces p2 & p3 connected to the plug P1, and each of the four holes arranged vertically in the plug P1 is a group And each group is correspondingly connected with a power supply end of the USB interface, a first data end, a second data end, and a ground end, and the jack of the plug P1 can be correspondingly mounted on the USB pin of the motherboard, the two USB interfaces It can be used as a rear USB interface to be used by the user. If the brain interface component 100 is connected to the P1 and the USB interface P9, the Ρ Ρ 夺 ( ( 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 和 和 和 和 和 和 和 和 和 和 和 和 和 和 和 和 和 和 和 和 和 和 和[Summary of the Invention] In the above, it is necessary to describe the device, and it is possible to work on the brain interface with a brain interface component test piece. a binding test to ensure a user interface-type USB interface component testing device, including a (10) interface, a 6 201022695 • a connector, a first resistor and a second resistor, a first indicating device, the connector is used for Connected to a plug of a USB interface component, the first power end of the connector is connected to the first data end of the connector, and the second data end of the connector and the first ground end are connected through the first resistor, The power supply end of the USB interface is connected to a power source, and the first data end of the USB interface is connected to the first end of the first indicating device through the second resistor, and the second end of the first indicating device is connected to the second data of the USB interface The ground terminal of the USB interface is grounded. ❹ The USB interface component test device tests the USB interface component by connecting to the USB interface component. When the USB interface component is working properly, current flows through the first indicating device to indicate whether the USB interface component can work normally. [Embodiment] Referring to FIG. 2, a preferred embodiment of the USB interface component testing device 200 of the present invention includes a box 202, a power switch 204 disposed outside the box 202, a USB interface Pa, and a pin connection. J; [, hair dipole diode D1 and D2. The USB interface pa is used to connect to one of the two USB interfaces P2 and P3 of the USB interface component 1 in FIG. 1 through a USB adapter cable. The pin connector η is an 8-pin connector. It is used to connect with the plug ρι of the USB interface component 1 in FIG. The LED D1 is used to indicate whether the tested USB interface component 100 is working properly. The LED D2 is used to indicate whether the USB interface component testing device 200 is powered on. The two LEDs D1 and D2 serve as indicating means. In other embodiments, other types of indicating devices such as a buzzer 201022695 may be employed. Referring to FIG. 3, a preferred embodiment of the USB interface component testing apparatus of the present invention further includes resistors R1 - R4 and two diodes Da and Db disposed inside the housing 202. The power terminal VI of the USB interface Pa is connected to a power source Vc through the power switch 204 (this embodiment is a battery disposed inside the box 202, and can also be connected to an external power source through a power line), and the power terminal VI of the USB interface Pa The anode of the light-emitting diode D2 is also connected through the resistor R3, and the cathode of the light-emitting diode D2 is grounded. The data terminal Datl + of the USB interface Pa is connected to the anode of the LED D1 through the resistor R2, the cathode of the LED D1 is connected to the data terminal Datl- of the USB interface Pa, and the ground end of the USB interface Pa GND1 is grounded. The power supply terminal V2 of the pin connector 连接 is connected to the anode of the diode Da, the cathode of the diode Da is connected to the data terminal Dat2+ of the pin connector J1, and the pin connector J1 is also connected through the resistor R1. The data terminal Dat2- and the ground terminal GND2, the power terminal V3 of the pin connector J1 is connected to the anode of the diode Db, and the cathode of the diode Db is connected to the data terminal Dat3+ of the pin connector The data terminal Dat3- and the ground terminal GND3 of the pin connector J1 are connected through the resistor R4. Since the capacitance of the internal circuit of the tested USB interface component 100 is charged, when the plug P1 of the USB interface component 100 is inserted into the pin connector J1, the two resistors R1 and R4 are used to discharge the capacitor to eliminate the capacitance. The charging causes the wrong judgment during the test. The two diodes Da and Db are used to prevent the plug P1 of the USB interface component 100 in FIG. 1 from being plugged in when the pin connector J1 of FIG. 2 is plugged in, that is, if the plug is reversed, the current can be blocked from the USB interface component. The test device 200 flows through the USB interface element 8 201022695 • piece 100. In the present embodiment, the resistance values of the two resistors R1 and R4 are both 1 2,000 ohms, and the resistance values of the two resistors R2 and r3 are both 2 ohms. The voltage of the power source Vc is a direct current voltage of 5 volts. In other embodiments, the number of the USB interface pa is not limited to one and the number of pins of the pin connector J1 is not limited to eight. The adjustment may be made according to the number and structure of the plugs of different types of USB interface components. Referring to FIG. 4, the working principle of the specific testing process is as follows: 10 When the USB interface component testing device 200 is used to test whether the USB interface component 100 is working normally, the USB interface component 1 plug P1 is first correctly inserted into the pin connection. In the jl, the power supply terminals V2 and V3 of the pin connector 、, the data terminals Dat2+, Dat3 +, Dat2- and Dat3-, the ground terminals GND2 and GND3 are connected with the USB interface P2 or P3, and then a good USB is connected. One of the USB cables 402 of the patch cord 400 is connected to the USB interface Pa, and the other USB plug 404 is connected to one of the USB interfaces P2 or P3. Taking the USB plug 404 and the USB interface P2 ❹ as an example, the power supply terminal V2, the data terminals Dat2+ and Dat2-, the ground terminal GND2 of the pin connector η are established through the USB interface P2, the USB adapter cable 400 and the USB interface pa. Connecting, and finally turning on the power switch 2〇4, the light-emitting diode D2 is illuminated' indicates that the USB interface component testing device 200 has been powered on.

當該USB介面元件1〇〇工作正常時，電源vc提供 之電流還經該USB介面Pa之電源端VI、針式連接器J1 之電源端V2、針式連接器η之資料端Dat2+、USB介面 Pa之資料端Datl+、電阻R2、發光二極體D1、該USB 9 201022695 •介面Pa之資料端Datl-、針式連接器J1之資料端Dat2-、 針式連接器J1之接地端GND2再到USB介面Pa之接地 端GND1後入地，在此過程中，有電流流過發光二極體 D1使得發光二極體D1發光，表示該USB介面元件100 工作正常。 ’ 當該USB介面元件100工作異常或USB介面元件 100之插頭P1不正確插入該針式連接器J1中時，無電流 從該USB介面Pa之資料端Datl +流過發光二極體D1到 ❿該USB介面Pa之資料端Datl-，發光二極體D1不發光， 表示該USB介面元件100工作出現異常或USB介面元件 100之插頭P1插入該針式連接器J1時插反。 當採用USB插頭404與USB介面P3相連進行測試 時，其測試原理與採用USB插頭404與USB介面P2相 連進行測試之原理相同。 在其他實施方式中，為降低該USB介面元件測試裝 置200之製造成本，也可刪除產生防插反作用之二極體 @ Da，也可以同時刪除產生分壓作用之電阻R3及產生指示 作用之發光二極體D2。此外，如果USB介面元件100只 有一個USB介面P2時，則與針式連接器J1相連之電阻 R4和二極體Db也可以同時刪除。 該USB介面元件測試裝置200透過使用USB轉接線 400將USB介面元件測試裝置200之USB介面Pa與USB 介面元件100之USB介面P2或P3相連，USB介面元件 100之插頭P1插入針式連接器J1中，以對USB介面元 件100進行測試，當該USB介面元件100工作正常時， 201022695 •才有電流流過發光二極體D1，從而指示USB介面元件 100是否能夠正常工作。 綜上所述，本發明符合發明專利要件，爰依法提出專 利申請。惟，以上所述者僅為本發明之較佳實施例，舉凡 熟悉本案技藝之人士，在爰依本發明精神所作之等效修飾 或變化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 圖1係現有之一種USB介面元件之示意圖。 ❿ 圖2係本發明USB介面元件測試裝置之較佳實施方式 之示意圖。 圖3係本發明USB介面元件測試裝置之較佳實施方式 之電路圖。 圖4係本發明USB介面元件測試裝置之較佳實施方式 借助一 USB轉接線測試圖1中之USB介面元件之示意圖。 【主要元件符號說明】 電阻 R1-R4 二極體 Da、Db 針式連接器 J1 USB介面 Pa 發光二極體 Dl、D2箱體 202 USB介面元件測試裝置 200 電源開關 204 11When the USB interface component 1 is working normally, the current supplied by the power supply vc is also passed through the power terminal VI of the USB interface Pa, the power terminal V2 of the pin connector J1, the data terminal Dat2+ of the pin connector η, and the USB interface. Pa data terminal Datl+, resistor R2, LED diode D1, USB 9 201022695 • Data terminal Datl- of interface Pa, data terminal Dat2- of pin connector J1, ground terminal GND2 of pin connector J1 The ground terminal GND1 of the USB interface Pa enters the ground, and during this process, a current flows through the LED diode D1 to cause the LED diode D1 to emit light, indicating that the USB interface component 100 is working normally. When the USB interface component 100 operates abnormally or the plug P1 of the USB interface component 100 is improperly inserted into the pin connector J1, no current flows from the data terminal Datl + of the USB interface Pa through the light-emitting diode D1 to ❿ The data terminal Datl- of the USB interface Pa does not emit light, indicating that the USB interface component 100 is abnormally operated or the plug P1 of the USB interface component 100 is inserted into the pin connector J1. When the USB plug 404 is connected to the USB interface P3 for testing, the principle of testing is the same as that of the USB plug 404 connected to the USB interface P2. In other embodiments, in order to reduce the manufacturing cost of the USB interface component testing device 200, the diodes forming the anti-insertion diode @ Da may also be deleted, and the resistor R3 that generates the voltage dividing function and the light emitting the indicating function may be deleted at the same time. Diode D2. In addition, if the USB interface component 100 has only one USB interface P2, the resistor R4 and the diode Db connected to the pin connector J1 can also be simultaneously deleted. The USB interface component testing device 200 connects the USB interface Pa of the USB interface component testing device 200 to the USB interface P2 or P3 of the USB interface component 100 by using the USB adapter cable 400, and the plug P1 of the USB interface component 100 is inserted into the pin connector. In J1, the USB interface component 100 is tested. When the USB interface component 100 is working properly, 201022695 • current flows through the LED diode D1, thereby indicating whether the USB interface component 100 can work normally. In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram of a conventional USB interface component. Figure 2 is a schematic illustration of a preferred embodiment of a USB interface component testing device of the present invention. Figure 3 is a circuit diagram of a preferred embodiment of the USB interface component testing apparatus of the present invention. 4 is a schematic diagram of a USB interface component testing device of the present invention. A schematic diagram of the USB interface component of FIG. 1 is tested by means of a USB patch cord. [Main component symbol description] Resistor R1-R4 Diode Da, Db pin connector J1 USB interface Pa LED diode Dl, D2 cabinet 202 USB interface component test device 200 Power switch 204 11

Claims (1)

201022695 十、申請專利範園 1.一種USB介面元件測試裝置，包括一 USB介面、一連 Λ接器、-第-電阻及一第二電阻、一第一指示裝置，該 連接器用於與- USB介面元件之一插頭連接，該連接器 之第一電源端連接該連接器之第一資料端，還透過該第 -電阻連接該連接器之第二資料端及第—接地端，該職 介面之電源端連接一電源，該USB介面之第一資料端透 過該第二電阻連接該第一指示裝置之第一端，該第一指 ©示裝置之第二端連接該USB介面之第二資料端，該仍二 介面之接地端接地。 2·如申請㈣範圍第！項所述之刪彳面元件測試裝 置，其還包括-第三電阻及一第二指示裝置，該第三電 阻之一端與該電源相連，還與該聰彳面之電源端相 連’該第三電阻之另—端與該第二指示裝置之第一端相 連該第一扣不装置之第二端接地，還與該USB介面之 接地端相連。 ❿3·如申請專利範圍第2項所述之應彳面元件測試裝 置’其中該第三電阻之電阻值為2〇〇歐姆，該第二指示 裝置為-發光二極體，該第二指示裝置之第一端和第二 端分別為該發光二極體之陽極和陰極。 4·如申睛專利範圍帛i項所述之介面元件測試裝 置，其還包括一二極體，該二極體之陽極連接該連接器 之第t源端’該二極體之陰極連接該連接器之第一資 料端，還透過該第一電阻連接該連接器之第二資料端及 第一接地诚。 12 201022695 ‘ 5.如申請專利範圍第1 · 置，苴^扛一 述SB介面元件測試裝 , *其還匕括一一極體，該連接器還包括一第二電 :第：資料端、一第四資料端及-第二接地端，該連接 =第二電源端連接該二極體之陽極，該：極體之 接該連接器之第三資料端，還透過另—電阻連接= 接器之第四資料端及第二接地端。 "連 6置如It專利範圍第5項所述之騰介面元件測試展 /、中該另一電阻之電阻值為2000歐姆。 ❿7置如申:!專，,第1項所述之腦介面元件測試裝 、中該第&不裝置為—發光二極體，該第一指示 極。之第-端和第二端分別為該發光二極體之陽極和陰 :如：ί專利範圍第1項所述之腦介面元件測試裝 電阻之電阻值為2000歐姆，該第二電 之電阻值為200歐姆。 €阻 €1 月專利範圍* 1或第2項所述之USB介面元件測 ❹试裝置’其中該電源為5伏特之直流電源。 件測 10.如申請專利範圍第 置，直中今USBH 34之USB介面元件測試農 源開關彳面之電源端與該電源之間還連接-電 13201022695 X. Application for Patent Park 1. A USB interface component testing device, comprising a USB interface, a connector, a -resistor and a second resistor, and a first indicating device for the USB interface One of the components is plugged, and the first power end of the connector is connected to the first data end of the connector, and the second data end and the ground end of the connector are connected through the first resistor, and the power of the working interface is Connected to a power source, the first data end of the USB interface is connected to the first end of the first indicating device through the second resistor, and the second end of the first finger detecting device is connected to the second data end of the USB interface, The ground terminal of the still interface is grounded. 2. If the application (four) scope is the first! The device for testing a component according to the above aspect, further comprising: a third resistor and a second indicating device, wherein one end of the third resistor is connected to the power source, and is further connected to the power end of the smart surface. The other end of the resistor is connected to the first end of the second indicating device, the second end of the first latching device is grounded, and is also connected to the ground end of the USB interface. ❿3. The device according to claim 2, wherein the resistance of the third resistor is 2 ohms, and the second indicating device is a light-emitting diode, the second indicating device The first end and the second end are respectively an anode and a cathode of the light emitting diode. 4 . The interface component testing device of claim 2, further comprising a diode, wherein an anode of the diode is connected to a t-th source of the connector, and a cathode of the diode is connected to the cathode The first data end of the connector is further connected to the second data end of the connector and the first ground through the first resistor. 12 201022695 ' 5. As claimed in the first paragraph of the patent application, SB^扛 describes the SB interface component test package, * which also includes a pole body, the connector also includes a second electricity: the: data terminal, a fourth data end and a second ground end, the connection=the second power end is connected to the anode of the diode, and the third body end of the pole body is connected to the third data end of the connector The fourth data terminal and the second ground terminal. "Lian 6 sets the test of the Teng interface component test as described in Item 5 of the It patent scope, and the resistance of the other resistor is 2000 ohms. ❿7定如::Special, the brain interface component test device described in item 1, the first & not the device is a light-emitting diode, the first indicator pole. The first end and the second end are respectively an anode and a cathode of the light emitting diode: as in the following: the resistance value of the brain interface component test resistor of the first aspect of the patent range is 2000 ohm, and the second electric resistance The value is 200 ohms. €Resistance €1 patent range* 1 or the USB interface component test device described in item 2, where the power supply is a 5 volt DC power supply. Test 10. If the scope of the patent application is the first, the USB interface of the USBH 34 is tested and connected between the power supply terminal and the power supply.
TW97148422A 2008-12-12 2008-12-12 Usb component tester TWI409483B (en)

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Publication number Priority date Publication date Assignee Title
CN110712806A (en) * 2019-09-27 2020-01-21 深圳市三想科技有限公司 Data line production test packing integration equipment

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US4326162A (en) * 1980-05-02 1982-04-20 Hankey James H Cable tester with first and second interengaging test modules
TW479142B (en) * 2000-07-14 2002-03-11 Inventec Corp Method for testing USB port and the device thereof
US6744634B2 (en) * 2001-11-23 2004-06-01 Power Quotient International Co., Ltd. Low height USB interface connecting device and a memory storage apparatus thereof
TWI309009B (en) * 2006-03-22 2009-04-21 Quanta Comp Inc System for detecting usb device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110712806A (en) * 2019-09-27 2020-01-21 深圳市三想科技有限公司 Data line production test packing integration equipment

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