CN104237716A - Serial connector detection system and method - Google Patents
Serial connector detection system and method Download PDFInfo
- Publication number
- CN104237716A CN104237716A CN201310224815.3A CN201310224815A CN104237716A CN 104237716 A CN104237716 A CN 104237716A CN 201310224815 A CN201310224815 A CN 201310224815A CN 104237716 A CN104237716 A CN 104237716A
- Authority
- CN
- China
- Prior art keywords
- pin
- serial connector
- signal
- detecting
- level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides a serial connector detection system and a method; the detection system is connected with a serial connector; the system comprises a pin detection circuit and a detector; the detector comprises a testing module; the pin detection circuit is used for detecting a connection condition of the serial connector, and comprises a level conversion circuit and a determination circuit; the testing module of the detector can determine the connection condition of the serial connector; the detection method uses the pin detection circuit and the detector to monitor and determine the connection conditions of the serial connector; the detection system and method can send alarms at an early damage stage of the connector, thus preventing the whole connector from being replaced when all pins of the connector are disconnected, and saving cost.
Description
Technical field
The present invention relates to a kind of connector detection system and method thereof, particularly relate to a kind of detection system and the method thereof that automatically can judge serial connector connection.
Background technology
Mini serial connector (Mini SAS Connector on general pick-up unit plate; hereinafter referred to as serial connector) in use often can because the plug of serial connector cable; or the extraction of Field Replaceable Unit (FRU) on pick-up unit plate or the interference of periphery cable that turns back to and do not fix, cause the contact of serial connector and mainboard to depart from.
Refer to Fig. 1, serial connector 10 is provided with 8 pin MH1 ~ MH8.In prior art, these 8 pins can be connected to metal shell 20, and then connect mainboard and ground connection.But use such connected mode, because 8 pins are all occupied, at the initial stage that serial connector 10 damages, metal shell 20 and mainboard can only rely on naked eyes identification when departing from, automatically instruction cannot be provided by machine, cause keeper cannot learn the fault of circuit in time, cause the further damage of this serial connector 10, bring great inconvenience to production work.
Summary of the invention
In view of this, be necessary to provide a kind of system and the method thereof that automatically can detect serial connector connection.
The invention provides a kind of serial connector detection system, described detection system is connected with multiple detecting pins of a serial connector, described system comprises a pin circuit for detecting and a pick-up unit, described pin circuit for detecting is for the connection of the multiple detecting pin and a mainboard of detecting described serial connector, and this pin circuit for detecting comprises:
One level shifting circuit, comprise multiple converting branch, each converting branch correspondence is connected to one of them detecting pin of described serial connector, and the level signal that each converting branch is used for correspondence to detect pin output is converted to corresponding switching levels signal, and
One decision circuitry, carries out logical operation for the switching levels signal sent described multiple converting branch, and exports a decision level signal according to the result of logical operation.
Described pick-up unit is for running a detection module, and this detection module judges the connection of described serial connector and described mainboard according to the judged result of described decision circuitry.
Present invention also offers a kind of serial connector detection method, for the connection of the multiple detecting pin and a mainboard that detect serial connector, the method comprises:
The level signal that each the detecting pin of multiple detecting pins receiving serial connector exports;
Level conversion is carried out to the outputs level signals received from each detecting pin, and generates a switching levels signal;
Logical operation is carried out to switching levels signal, and exports a decision level signal according to operation result;
The connection of described multiple detecting pin and mainboard is judged according to decision level.
A kind of serial connector detection system of the present invention and method thereof, the connection of serial connector can be judged by a test module, and just can send warning, to avoid when the pin of connector all departs from the connector initial stage of damaging, change the connector of whole group, save production cost.
Accompanying drawing explanation
Fig. 1 is the pin connection layout of serial connector in prior art.
Fig. 2 is the pin connection layout of serial connector in an embodiment of the present invention.
Fig. 3 is the functional frame composition of serial connector detection system of the present invention.
Fig. 4 is the physical circuit figure in Fig. 3 in pin circuit for detecting one embodiment.
Fig. 5 is the workflow diagram of system in Fig. 3.
Main element symbol description
| Serial connector detection system | 100 |
| Serial connector | 10 |
| Pin | MH1~MH8 |
| Detecting pin | 11 |
| Grounding pin | 12 |
| Metal shell | 20 |
| Pin circuit for detecting | 30 |
| Level shifting circuit | 31 |
| MH3 converting branch | 311 |
| MH4 converting branch | 312 |
| MH7 converting branch | 313 |
| MH8 converting branch | 314 |
| Decision circuitry | 32 |
| Pick-up unit | 40 |
| Test module | 41 |
| Alarm module | 42 |
| Step | S1~S5 |
| Transistor | Q1~Q3 |
| Resistance element | R1~R8 |
| Voltage source | Vcc1~Vcc4 |
| Converting branch input end | MH3_IN、MH4_IN、MH7_IN、MH8_IN |
| Converting branch output terminal | MH3_OUT、MH4_OUT、MH7_OUT、MH8_OUT |
| Decision circuitry output terminal | MH_OUT |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Refer to Fig. 2, serial connector 10 is provided with 8 pins, comprises MH1 ~ MH8.These 8 pins are all connected to a metal shell 20, and this metal shell 20 connects a mainboard (scheming not shown), and then is connected with earth terminal, so these 8 pins are also connected to earth terminal.In present embodiment, described 8 pins comprise four detecting pins 11 and four grounded pin 12, and this detecting pin 11 comprises MH3, MH4, MH7 and MH8 pin, and remaining four pin is grounding pin 12.This detecting pin 11, while connection earth terminal, is also connected with a pin circuit for detecting 30, and this pin circuit for detecting 30 is for detecting the connection of this detecting pin 11 and described mainboard.
Refer to Fig. 3, described pin circuit for detecting 30 comprises level shifting circuit 31 and a decision circuitry 32.The detecting pin 11 of this serial connector 10 is connected with the level shifting circuit 31 of this pin circuit for detecting 30, for exporting a level signal to this level shifting circuit 31.The level signal received is carried out level conversion by this level shifting circuit 31, generates a switching levels signal, and this switching levels signal is sent to the decision circuitry 32 of described pin circuit for detecting 30.This decision circuitry 32 for carrying out logical operation to this switching levels signal, and exports corresponding decision level signal according to operation result.Described decision circuitry 32 is connected to a pick-up unit 40, this pick-up unit 40 is for running test module 41 and an alarm module 42, described test module 41 judges the connection of described detecting pin 11 according to the decision level signal that decision circuitry 32 exports, and is operated accordingly by this alarm module 42.Described pin circuit for detecting 30 and pick-up unit 40 form serial connector detection system 100 in an embodiment of the present invention.
Referring to Fig. 4, is the physical circuit figure of pin circuit for detecting 30 in an embodiment.The level shifting circuit 31 of this pin circuit for detecting 30 comprises four converting branch, be respectively the MH3 converting branch 311 connecting pin MH3, the MH4 converting branch 312 connecting pin MH4, connect the MH7 converting branch 313 of pin MH7 and connect the MH8 converting branch 314 of pin MH8, these four converting branch have identical structure.Four pins MH3, MH4, MH7 and MH8 in described detecting pin 11 are connected to input end MH3_IN, MH4_IN, MH7_IN and MH8_IN of these four converting branch respectively, the level signals that these four detecting pins 11 input are after the process of corresponding converting branch 311 ~ 314, and the switching levels signal of generation exports to decision circuitry 32 respectively through output terminal MH3_OUT, MH4_OUT, MH7_OUT and MH8_OUT of four converting branch.
Particularly, for the MH3 converting branch 311 be connected with pin MH3, this MH3 converting branch 311 comprises two transistor Q1 and Q2(such as field effect transistor), the grounded drain of transistor Q1, grid passes through a resistance element R1(such as resistive element while connection input end MH3_IN) be connected to a voltage source Vcc 1, its source electrode is connected to a voltage source Vcc 2 by a resistance element R2 while the grid connecting transistor Q2.The grounded drain of this transistor Q2, source electrode is connected to a voltage source Vcc 3 by a resistance element R3, is connected with output terminal MH3_OUT simultaneously.In the present embodiment, when pin MH3 is normally connected with described mainboard, this pin continues the low level level signal of input one to this MH3 converting branch 311, due to the input of this low level level signal, transistor Q1 is in cut-off state, cause transistor Q2 conducting, namely output terminal MH3_OUT exports a low level switching levels signal.When the connection of pin MH3 and described mainboard exists abnormal, this pin is in vacant state.Now, this MH3 converting branch 311 is in the state of drawing high, and transistor Q1 is in conducting state, and transistor Q2 ends, and output terminal MH3_OUT exports the switching levels signal of a high level.Circuit structure and the principle of work of pin MH4, MH7 and MH8 are identical with pin MH3, omit describe at this.
After the switching levels signal that described level shifting circuit 31 exports inputs this decision circuitry 32, through the process of this decision circuitry 32, the decision level signal of generation flows to the test module 41 of described pick-up unit 40 via output terminal MH_OUT.
Particularly, described decision circuitry 32 comprises a transistor Q3, the switching levels signal that described MH3 converting branch 311, MH4 converting branch 312, MH7 converting branch 313 and MH8 converting branch 314 export is sent to the grid of this transistor Q3 respectively via resistance element R4, R5, R6 and a R7, the grounded drain of this transistor Q3, source electrode is connected to a voltage source Vcc 4 by a resistance element R8, is connected with output terminal MH_OUT simultaneously.In the present embodiment, when the switching levels signal that described level shifting circuit 31 inputs is low level, first switching levels signal carries out logical OR computing, operation result is still a low level, therefore transistor Q3 is in cut-off state, therefore output terminal MH_OUT exports the decision level signal of a high level.When input switching levels signal have one or for multiple high level time, be a high level after logical OR computing, after input transistors Q3, this transistor is in conducting state, therefore output terminal MH_OUT exports a low level decision level signal.
Refer to Fig. 5, the serial connector detection method of the present invention can be monitored by described pin circuit for detecting 30 and test module 41 and judge the connection of the detecting pin 11 of described serial connector 10, comprises the following steps:
Step S1, the detecting pin 11 of described serial connector 10 is to level shifting circuit 31 outputs level signals of described pin circuit for detecting 30.In the present embodiment, four pins MH3, MH4, MH7 and MH8 in detecting pin 11 are simultaneously to this level shifting circuit 31 outputs level signals.
Particularly, when four pins MH3, MH4, MH7 and MH8 of described detecting pin 11 and the connection of described mainboard normal time, four pins of this detecting pin 11 all can input a low level level signal to the level shifting circuit 31 of described pin test circuit 30.If there have the connection of one or more pin and this mainboard to exist in four of this detecting pin 11 pins to be abnormal, for MH3 pin, MH3 pin disconnects the connection with described mainboard, now MH3 pin is in vacant state, now the grid of the transistor Q1 of level shifting circuit 31 inside is via a resistance element R1(such as resistive element) be connected to a voltage source Vcc 1, be in the state of drawing high, be equivalent to MH3 pin have input level signal from a high level to level shifting circuit 31.
Step S2, after described level shifting circuit 31 receives described level signal, carries out level conversion to this level signal, and the switching levels signal of generation is sent to described decision circuitry 32.
Particularly, in the present embodiment, when four level signals that this level shifting circuit 31 receives are low level, the converting branch in this level shifting circuit 31 exports four low level switching levels signals.When one or more pin in described detecting pin 11 is in vacant state, the converting branch in corresponding level shifting circuit 31 is for drawing high pattern, and corresponding converting branch exports the switching levels signal of a high level.
Step S3, after described decision circuitry 32 receives switching levels signal, carries out logical operation to this switching levels signal, and exports a decision level signal.
Particularly, in the present embodiment, this decision circuitry 32 carries out logical OR computing to the switching levels signal received.If four switching levels signals that this decision circuitry 32 receives are low level, be still a low level after logical OR computing, then after the process of transistor Q3, export the decision level signal of a high level.If having one or more in four switching levels signals that this decision circuitry 32 receives is high level, is a high level after logical OR computing, then after the process of transistor Q3, export a low level decision level signal.
Step S4, the test module 41 of described pick-up unit 40 judges the connection of the detecting pin 11 of described serial connector 10 according to the decision level signal that described decision circuitry 32 exports.
Particularly, if this test module 41 receives the decision level signal of a high level, the detecting pin 11 representing described serial connector 10 is all normal with the connection of described mainboard, then return step S1; If this test module 41 receives a low level decision level signal, represent in this detecting pin 11 and have the connection of at least one pin and this mainboard to exist extremely, then enter step S5.
Step S5, the alarm module 42 of described pick-up unit 40 produces an alarm signal, and announcement apparatus maintainer process in time.In the present embodiment, this alarm module 42 is a display screen, adopts the mode of display information to produce described alarm signal.In other embodiments, described alarm module 42 can be a LED, adopts the mode of bright light or flicker to produce this alarm signal; Or a loudspeaker module, adopt the mode of sound to produce this alarm signal.
A kind of serial connector detection system provided by the invention and method thereof, monitored by a pin circuit for detecting and test module and judge the connection of serial connector, just warning can be sent at the serial connector initial stage of damaging, to avoid when the pin of connector all departs from, change the connector of whole group, not only save production cost, more production work is provided convenience, and substantially increases production efficiency.
Those skilled in the art will be appreciated that; above embodiment is only used to the present invention is described; and be not used as limitation of the invention; as long as within spirit of the present invention, the suitable change do above embodiment and change all drop within the scope of protection of present invention.
Claims (9)
1. a serial connector detection system, described detection system is connected with multiple detecting pins of a serial connector, it is characterized in that, described system comprises a pin circuit for detecting and a pick-up unit, described pin circuit for detecting is for the connection of the multiple detecting pin and a mainboard of detecting described serial connector, and this pin circuit for detecting comprises:
One level shifting circuit, comprise multiple converting branch, each converting branch correspondence is connected to one of them detecting pin of described serial connector, and the level signal that each converting branch is used for correspondence to detect pin output is converted to corresponding switching levels signal, and
One decision circuitry, carries out logical operation for the switching levels signal sent described multiple converting branch, and exports a decision level signal according to the result of logical operation;
Described pick-up unit is for running a detection module, and this detection module judges the connection of described serial connector and described mainboard according to the decision level signal of described decision circuitry.
2. serial connector detection system as claimed in claim 1, it is characterized in that, described pick-up unit also comprises an alarm module, and this alarm module is used for producing an alarm signal when described detection module judges that the connection of detecting pin and described mainboard exists abnormal.
3. serial connector detection system as claimed in claim 1, it is characterized in that, each described converting branch comprises two transistors, the grounded drain of the first transistor, grid is connected to one first voltage source by a resistance element while connection one input end, its source electrode is connected to one second voltage source by a resistance element while the grid connecting transistor seconds, the grounded drain of transistor seconds, source electrode is connected to a tertiary voltage source by a resistance element, is connected with decision circuitry simultaneously.
4. serial connector detection system as claimed in claim 1, it is characterized in that, described decision circuitry comprises a transistor, the switching levels signal of multiple converting branch outputs of described level shifting circuit is sent to the grid of this transistor respectively via a resistance element, the grounded drain of this transistor, source electrode is connected to a voltage source by a resistance element, is connected with pick-up unit simultaneously.
5. a serial connector detection method, for the connection of the multiple detecting pin and a mainboard that detect serial connector, it is characterized in that, the method comprises:
The level signal that each the detecting pin of multiple detecting pins receiving serial connector exports;
Level conversion is carried out to the outputs level signals received from each detecting pin, and generates a switching levels signal;
Logical operation is carried out to switching levels signal, and exports a decision level signal according to operation result;
The connection of described multiple detecting pin and mainboard is judged according to decision level signal.
6. serial connector detection method as claimed in claim 5, it is characterized in that, when multiple detecting pin is connected normal with mainboard, the level signal that each the detecting pin received exports is low level, and the switching levels signal exported after carrying out level conversion to the outputs level signals received from each detecting pin is also low level signal; One or more pin in described detecting pin is connected abnormal with mainboard, when being in vacant state, corresponding generate switching levels signal be high level signal.
7. serial connector detection method as claimed in claim 5, is characterized in that, when multiple switching levels signal is low level, exports a low level decision level signal after carrying out logical operation to the plurality of switching levels signal; Have in multiple switching levels signal one or more for high level time, export the decision level signal of a high level after logical operation is carried out to the plurality of switching levels signal.
8. serial connector detection method as claimed in claim 5, it is characterized in that, described logical operation is logical OR computing.
9. serial connector detection method as claimed in claim 5, is characterized in that, also comprise step: when the detecting pin of the described serial connector of described judgement and the connection of mainboard exist abnormal, produce an alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310224815.3A CN104237716A (en) | 2013-06-07 | 2013-06-07 | Serial connector detection system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310224815.3A CN104237716A (en) | 2013-06-07 | 2013-06-07 | Serial connector detection system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104237716A true CN104237716A (en) | 2014-12-24 |
Family
ID=52226189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310224815.3A Pending CN104237716A (en) | 2013-06-07 | 2013-06-07 | Serial connector detection system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104237716A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067944A (en) * | 2015-09-02 | 2015-11-18 | 广东欧珀移动通信有限公司 | Detection circuit and detection method for audio interfaces |
| CN105988902A (en) * | 2015-02-02 | 2016-10-05 | 联想（上海）信息技术有限公司 | Electronic equipment and connection detecting method |
| CN106226645A (en) * | 2016-07-15 | 2016-12-14 | 联想(北京)有限公司 | Connect detection device and method |
| CN106326153A (en) * | 2015-06-29 | 2017-01-11 | 鸿富锦精密工业(武汉)有限公司 | Interface detection circuit |
| CN108959002A (en) * | 2018-06-26 | 2018-12-07 | Oppo（重庆）智能科技有限公司 | insertion detection circuit, insertion detection method and electronic device |
| CN109426642A (en) * | 2017-08-22 | 2019-03-05 | 佛山市顺德区顺达电脑厂有限公司 | It can differentiate the Transmission system of connection error |
-
2013
- 2013-06-07 CN CN201310224815.3A patent/CN104237716A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105988902A (en) * | 2015-02-02 | 2016-10-05 | 联想（上海）信息技术有限公司 | Electronic equipment and connection detecting method |
| CN106326153A (en) * | 2015-06-29 | 2017-01-11 | 鸿富锦精密工业(武汉)有限公司 | Interface detection circuit |
| CN105067944A (en) * | 2015-09-02 | 2015-11-18 | 广东欧珀移动通信有限公司 | Detection circuit and detection method for audio interfaces |
| CN105067944B (en) * | 2015-09-02 | 2017-10-31 | 广东欧珀移动通信有限公司 | A kind of detection circuit and detection method for COBBAIF |
| CN106226645A (en) * | 2016-07-15 | 2016-12-14 | 联想(北京)有限公司 | Connect detection device and method |
| CN109426642A (en) * | 2017-08-22 | 2019-03-05 | 佛山市顺德区顺达电脑厂有限公司 | It can differentiate the Transmission system of connection error |
| CN108959002A (en) * | 2018-06-26 | 2018-12-07 | Oppo（重庆）智能科技有限公司 | insertion detection circuit, insertion detection method and electronic device |
| CN108959002B (en) * | 2018-06-26 | 2021-07-13 | Oppo（重庆）智能科技有限公司 | Insertion detection circuit, insertion detection method, and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104237716A (en) | Serial connector detection system and method | |
| US9906018B2 (en) | Electrical line status monitoring system | |
| CN104635102A (en) | Electronic component detection device and detection method thereof | |
| CN103198033A (en) | Apparatus and method of identifying a USB or an MHL device | |
| CN102901905A (en) | Parallel bus testing device and method | |
| CN104375908A (en) | Method and equipment for detecting electric leakage of server | |
| CN104297622A (en) | Method and device for detecting defects of display panel | |
| CN104007353A (en) | Interface detection circuit | |
| CN103941135A (en) | Short circuit detection method and device | |
| CN201490710U (en) | Intelligent monitoring type surge protector | |
| CN202119854U (en) | Pin welding state detection apparatus | |
| CN104331061A (en) | Test method and test device of core board of distribution network terminal device | |
| CN107179972A (en) | For the method for calculation machine, microcontroller, test equipment and test system | |
| CN102752623A (en) | Signal testing device | |
| CN202221452U (en) | Automatic testing system | |
| CN116449134A (en) | Method and system for acquiring fault information of photovoltaic inverter | |
| CN204086438U (en) | A kind of chip that utilizes protects diode measurement circuit to open the device of short circuit | |
| CN104515945A (en) | Hidden fault detection circuit and method for detecting hidden fault by using same | |
| CN103529353B (en) | Winding displacement detection method and winding displacement detection system | |
| CN105223489A (en) | A kind of interlock circuit testing apparatus and method of testing | |
| CN204789978U (en) | Smart electric meter trouble snatchs test equipment | |
| CN210742306U (en) | Short-circuit prevention makeup testing device | |
| CN100589289C (en) | Slot apparatus | |
| CN209281387U (en) | Plug the lighting jig of control circuit and display panel | |
| CN106026054A (en) | Digital output self-inspection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |