CN103576075B - The device and method that mainboard detects automatically - Google Patents
The device and method that mainboard detects automatically Download PDFInfo
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- CN103576075B CN103576075B CN201210278299.8A CN201210278299A CN103576075B CN 103576075 B CN103576075 B CN 103576075B CN 201210278299 A CN201210278299 A CN 201210278299A CN 103576075 B CN103576075 B CN 103576075B
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Abstract
The present invention relates to the device and method that a kind of mainboard detects automatically, being placed in by mainboard to be tested parallel has between spaced apart upper needle plate and lower needle plate；Upper needle plate connects sky plate by some bracers, and sky plate reconnects cylinder, thus is driven upper needle plate to move to the direction closer or far from described lower needle plate by cylinder, makes the probe on upper and lower needle plate form signal with the interface on mainboard respectively and is connected；By the single-chip microcomputer of Single-chip Controlling module, voltage ratio compared with mechanism, drive mechanism, decoding mechanism, serial communication mechanism, the SN bar code of mainboard and the reading mechanism etc. of MAC id information, complete to show the start of mainboard, detection and result are uploaded automatically, it is capable of the automation mechanized operation of mainboard test, thus the human and material resources needed for saving test and time.
Description
Technical field
The present invention relates to the device and method that a kind of mainboard detects automatically.
Background technology
During current production main board for notebook computer, part mainboard need to be booted up display test in the SMT stage (SMT: surface device mounting technology), after being completed, result is uploaded to Shopfloor system (server of Shopfloor: Row control), in case processing procedure controls.A kind of FCT(functional test used) method and steps tested is as follows:
The first step, dress CPU, RAM are on mainboard；
Second step, is placed in mainboard on test platform, with HDD(hard disk drive), LCD display, power supply, netting twine, the equipment such as keyboard is connected；
3rd step, start, under DOS interface, input job number, judge that LCD display the most normally shows accordingly, then by MACID(hardware address) it is uploaded to Shopfloor system.
This kind of method of testing disadvantageously, must be based on existing DOS and Windows system realize, therefore, the tool and the equipment that not only use are many, the time length (under DOS system, one piece of mainboard of general test needs 200 seconds, needs 350 seconds under XP system) of test, the loss of tool is the most.Described tool is as a kind of instrument assisting to control position or action (or both).
Summary of the invention
For problem above, the present invention use a kind of need not enter the operating systems such as DOS and Windows can be realized as mainboard automatically detect, the display upload the scheme of test result of starting shooting, and made the tool that raw material is NCC bakelite.Have only to install on mainboard CPU and RAM when test, take mainboard and put into tool, the reading of start, detection, MACID will be automatically performed, and testing result is uploaded to Shopfloor system.
In order to achieve the above object, the technical scheme is that and the device that automatically detects of a kind of mainboard is provided, this be a kind of mainboard is detected automatically, the display and upload the tool of test result of starting shooting, described tool comprises:
Parallel have spaced apart upper needle plate and lower needle plate, and mainboard to be tested is placed between described upper needle plate and lower needle plate；
One sky plate, between itself and described upper needle plate, is connected by some the bracers arranged；
One cylinder, it drives described sky plate and a bracer action by connecting sky plate, makes described upper needle plate move to the direction closer or far from described lower needle plate, and then the some probes being respectively provided with on described upper needle plate and lower needle plate interface position corresponding with on mainboard is contacted, form signal and connect；
Described tool also comprises the Single-chip Controlling module being controlled described cylinder action；It is formed with signal between some described probes and the corresponding interface of described main monolithic module to be connected, so that the data message that described Single-chip Controlling module can obtain mainboard detects automatically.
Described Single-chip Controlling module comprises single-chip microcomputer further, and is connected with described single-chip microcomputer signal, and the voltage ratio relatively mechanism under the control of described single-chip microcomputer, the BIOS cell voltage of mainboard detected.
Described Single-chip Controlling module also comprises and is connected with described single-chip microcomputer signal, and by described monolithic processor controlled drive mechanism, described drive mechanism connects with corresponding some relay signals further, and by driving described relay respectively mainboard to be powered on, start shooting and the running of described cylinder is controlled.
Described Single-chip Controlling module also comprises and is connected with described single-chip microcomputer signal, by described monolithic processor controlled decoding mechanism, the signal that described mainboard is sent by described decoding mechanism decodes, formed according to decoding result and judge whether mainboard is capable of self-inspection and the code of start display, and code is sent extremely described single-chip microcomputer and the charactron being connected with described decoding mechanism signal.
The single-chip microcomputer of described Single-chip Controlling module also comprises SN bar code and the reading mechanism of MACID information obtaining described mainboard based on SPI protocol.
Described Single-chip Controlling module also comprises and is connected with described single-chip microcomputer signal, and mainboard testing result uploads under described Single-chip Controlling the serial communication mechanism of external system.
Another technical scheme of the present invention is to provide a kind of method that mainboard detects automatically, above-mentioned detection device is used to realize, Single-chip Controlling module in this device comprises single-chip microcomputer further, and be connected and by described monolithic processor controlled voltage ratio compared with mechanism, drive mechanism, decoding mechanism, serial communication mechanism, the SN bar code of mainboard and the reading mechanism of MACID information with described single-chip microcomputer signal, described detection method comprises the steps of
Step one, manual installation CPU and RAM on mainboard to be tested, mainboard is put between upper needle plate and lower needle plate, driven corresponding relay to control cylinder moving by drive mechanism, in drive, needle plate is towards near the motion of the direction of lower needle plate, by forming, with mainboard the corresponding interface position, the probe that signal is connected respectively on upper needle plate and lower needle plate, the information of mainboard is sent to the corresponding mechanism of described Single-chip Controlling module；
Step 2, is detected mainboard automatically by Single-chip Controlling module, comprises procedure below further:
Step A, by voltage ratio compared with the BIOS cell voltage of mechanism's detecting master plate, if cell voltage is in the voltage range of setting, it is judged that be mounted with BIOS battery on mainboard, continues the process that automatically detects of step B；Otherwise, cell voltage is not in set point, it is judged that neglected loading BIOS battery on mainboard, jumps directly to step 3；
Step B, is driven corresponding relay by drive mechanism, controls mainboard and powers on；Single-chip microcomputer passes through SPI protocol, reads SN bar code and MACID information from mainboard；
Step C, is driven corresponding relay by drive mechanism, controls mainboard and is simulated start；Wait the self-inspection of mainboard；Single-chip microcomputer reads the charactron code obtained after being decoded mainboard transmission signal by decoding mechanism, differentiate that mainboard, the most by self-inspection and be capable of start display, and controls corresponding charactron and display lamp is lighted or extinguishes to point out testing result by code；
Step D, single-chip microcomputer, by the testing result to main frame, uploads to the system of outside for subsequent treatment by serial communication mechanism；
Step E, is driven corresponding relay by drive mechanism, controls mainboard and is simulated shutdown, then makes mainboard power-off；
Step 3, after waiting that the self-checking of mainboard completes, controls cylinder and drives upper needle plate to move towards the direction away from lower needle plate, take out the mainboard being completed.
Compared with prior art, the device and method that mainboard of the present invention detects automatically, have an advantage in that: the tool that the present invention provides need not rely on conventional DOS and Windows system, just can be automatically performed the start display test of mainboard quickly, effectively, accurately, at low cost, and upload the testing results such as MACID to Shopfloor system.Therefore, the present invention tests one piece of mainboard and only needs 45 seconds, solves the shortcomings such as testing time length in current method of testing, tool used and equipment are many, it is not necessary to use brush bore brush SN bar code, saves and often stands 1PCS(once) brush rifle.It is crucial that be capable of the automation mechanized operation of mainboard test by device and method of the present invention, this is that existing FCT test cannot be accomplished.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of the device that mainboard of the present invention detects automatically；
Fig. 2 is the functional-block diagram of Single-chip Controlling module in the device that mainboard of the present invention detects automatically；
Fig. 3 is the electrical block diagram of voltage comparator in Single-chip Controlling module shown in Fig. 2；
Fig. 4 is debugcard(decoder card in Single-chip Controlling module shown in Fig. 2) electrical block diagram；
Fig. 5 is the workflow schematic diagram of mainboard automatic testing method of the present invention.
Detailed description of the invention
As it is shown in figure 1, the present invention detects automatically in order to realize mainboard, make the tool that a kind of raw material is NCC bakelite.Mainboard 100 to be tested is placed between upper needle plate 40 horizontally disposed in this tool and lower needle plate 50；On this between needle plate 40 and a sky plate 20 being positioned above, connected by some the bracers 30 arranged；E.g. it is connected to a cylinder 10 above day plate 20, is used for controlling day plate 20, bracer 30 action, to drive upper needle plate 40 to realize down pressing or rising.If being provided with dry contact probe 60 down at upper needle plate 40, if be provided with dry contact probe 60 upward on lower needle plate 50 simultaneously, when pressing under upper needle plate 40 is controlled by cylinder 10, between the probe 60 of upper needle plate 40 and lower needle plate 50 interface position respectively and on mainboard 100, form the corresponding connection that can support the transmission such as signal data.
Some slave parts arranged in tool are shown without in FIG, e.g. support the frame structure of the parts such as cylinder, in order to guide guide rod or the guide rail etc. of upper needle plate lifting position；The most e.g. be provided with induction apparatus, when staff enters into the induction range of induction apparatus, it is possible to control cylinder automatically rise without under press, pressure hands when preventing from picking and placeing mainboard.
The running of the above-mentioned hardware configuration of tool, rely primarily on a Single-chip Controlling module to control, the major part of this Single-chip Controlling module can be produced in a master board, is also formed with corresponding signal and connects between the probe of upper needle plate and lower needle plate and the relevant interface of described main monolithic module.In tool, it is additionally provided with a control chamber (not shown) to place described master board, can be the lower section that control chamber is placed in lower needle plate.
Other e.g. produce the Switching Power Supply of DC voltage needed for master board, drive the electromagnetic valve of cylinder, debugcard(decoder card), contact the heat radiation copper billet of heat radiation with the CPU on mainboard during test, and radiator fan of wind blowing to heat radiation copper billet etc. can be produced, may be disposed in described control chamber.And e.g. start the activate switch of mainboard test, control alternating current and be passed through the on and off switch of described Switching Power Supply, the emergency stop switch that cylinder rises can be controlled at Emergency time, the enumerator that the quantity measuring mainboard is counted, and some display lamps etc. of instruction mainboard test result quality, may be mounted at the surface of control chamber, convenient operation and result show.
It is outlined above, the e.g. drive circuit of the parts such as induction apparatus, some switches, radiator fan, enumerator, display lamp can use the conventional method of this area to realize, the drive circuit of these parts can be to be connected with described master board signal, and be uniformly controlled by described master board, it is also possible to it is to control device signal with independent one or more other be connected and be controlled according to the corresponding conditions in test.
It is a kind of embodiment of heretofore described Single-chip Controlling module as shown in Figure 2, wherein uses anti-interference strong singlechip chip PIC16F877A as core devices.Voltage comparable chip LM358, voltage comparator A1 and A2 of built-in two groups of IN4148 types, can do a window voltage indicator, the auxiliary element of described voltage comparator and circuit connection can be with further reference to shown in Fig. 3.When mainboard is when the voltage Ui that voltage comparable chip exports is between 2.9V ~ 3.1V, the singlechip chip output high level that voltage comparable chip connects to signal therewith, the BIOS battery of 3V voltage on mainboard can be detected with or without neglected loading with this.
Have employed special driving chip ULN2003 to be connected with described singlechip chip signal, and then by driving the some relays being connected with special driving chip signal, control powering on of mainboard, start and cylinder and rise degradation action.
Coordinating sees shown in Fig. 2, Fig. 4, debugcard uses chip AK2001, the signal transmitted by mainboard can be decoded, and control charactron to show code, can differentiate that mainboard has the most realized start by self-inspection and shown from code, singlechip chip I/O interface receives the charactron code that debugcard sends.Between debugcard and mainboard, the signal packet of transmission contains: LAD [3:0] (LPC signal), and these four holding wires are respectively intended to transmit the order of LPCnBus, address and data；LFRAME#(LPC framework), when this signal is effective, instruction starts or terminates a LPC cycle；PCIRST#(PCI reset signal) and PCICLK#(PCI clock signal).The signal that debugcard transmits when realizing decoding function, comprises the driving signal of LED [A:G] (O output) seven segment digital tubes, also sends these signals to singlechip chip simultaneously；A high position for DGH# and DGL#(numerical monitor enable and low level signal), the Enable Pin of two charactrons it is connected to each via auxiliary element circuit such as resistance.
As in figure 2 it is shown, Single-chip Controlling module of the present invention can also read SN bar code and the MACID information of record its EEPROM based on SPI protocol, send to singlechip chip from mainboard.The serial communication part that this Single-chip Controlling module is arranged, it is possible to use MAX232 chip realizes, it is connected with singlechip chip signal, in order to mainboard testing result to upload to the Shopfloor system of outside.
Shown in Figure 5, introduce present invention hardware configuration based on above-mentioned tool and Single-chip Controlling module, the method that mainboard is detected automatically.Key step below the method:
Step one, manual installation CPU and RAM on mainboard, put between the upper needle plate of tool and lower needle plate by mainboard, press activate switch, driven corresponding relay to control electromagnetic valve by driving chip so that cylinder can drive under needle plate and press, make some probes contact with the corresponding interface of mainboard.
Step 2, under the control of singlechip chip, detects automatically to mainboard, comprises procedure below further:
Whether step A, installed BIOS battery by voltage comparable chip detecting master plate；If voltage comparable chip does not export high level to singlechip chip, illustrate that the voltage of mainboard, not within the scope of 2.9V ~ 3.1V, illustrates to be fitted without the BIOS battery of 3V, then jumps directly to step 3；Otherwise, then it is mounted with battery, and enters step B.
Step B, is driven corresponding relay by driving chip, controls mainboard and powers on (e.g. 19V)；Singlechip chip passes through SPI protocol, reads SN bar code and MACID information from mainboard.
Step C, is driven corresponding relay by driving chip, controls mainboard and is simulated start, and waits the self-inspection of mainboard；Singlechip chip reads the charactron code obtained mainboard signal interpretation by debugcard, differentiate that mainboard has the most passed through self-inspection and has been capable of start display by code, (i.e. can self-inspection display of starting shooting) that if the mainboard judged in test is non-defective unit, then the display lamp controlling to detect apparatus surface gives a green light；If not non-defective unit, then send out a warning.
Step D, singlechip chip, by testing result (mainly MACID information), uploads to the Shopfloor system of outside by serial communication part.
Step E, via driving chip and corresponding relay, controls mainboard and is simulated shutdown, then make mainboard power-off.
Step 3, after waiting that the self-checking of mainboard completes, controls cylinder and drives upper needle plate to rise；At this point it is possible to the quantity that control counter shows increases.Finally take out the mainboard being completed.
In sum, the device and method that the above-mentioned mainboard of the present invention detects automatically, it is possible to realize automation mechanized operation, thus enormously simplify human and material resources required in test process and time.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that the description above is not considered as limitation of the present invention.After those skilled in the art have read foregoing, multiple amendment and replacement for the present invention all will be apparent from.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (2)
1. the device that mainboard detects automatically, be a kind of mainboard is detected automatically, the display and upload the tool of test result of starting shooting, it is characterised in that described tool comprises:
Parallel have spaced apart upper needle plate and lower needle plate, and it is to be tested that manual installation has the mainboard of CPU and RAM to be placed between described upper needle plate and lower needle plate etc.；
One sky plate, between itself and described upper needle plate, is connected by some the bracers arranged；
One cylinder, it is by connecting sky plate, drive described sky plate and a bracer action, described upper needle plate is made to move to the direction closer or far from described lower needle plate, and then towards during near the motion of the direction of lower needle plate, the some probes interface position corresponding with on mainboard being respectively provided with on needle plate and lower needle plate on described is contacted at upper needle plate, formation signal connects, thus the Single-chip Controlling module comprised by described tool detects automatically by obtaining the data message of mainboard；And, move towards the direction away from lower needle plate at upper needle plate, conveniently take out the mainboard being completed；
Described cylinder is driven the action of sky plate, a bracer and the motion of upper needle plate to be controlled by described Single-chip Controlling module；Further, described Single-chip Controlling module, comprise single-chip microcomputer further, and be connected with described single-chip microcomputer signal and by described monolithic processor controlled voltage ratio relatively mechanism, drive mechanism, decoding mechanism, serial communication mechanism, reading mechanism, wherein:
Drive corresponding first relay to control cylinder moving by drive mechanism, drive described upper needle plate to move to the direction closer or far from described lower needle plate；
By voltage ratio compared with the BIOS cell voltage of mechanism's detecting master plate, whether it is in the voltage range of setting by detecting BIOS cell voltage, it is judged that whether BIOS battery is installed on mainboard；
Drive corresponding second relay to control mainboard by drive mechanism to power on, and read SN bar code and MACID information based on SPI protocol from mainboard by Single-chip Controlling reading mechanism；
Drive corresponding 3rd relay to control mainboard by drive mechanism and be simulated start, and the charactron code by decoding mechanism, the signal of transmission after mainboard self-inspection decoded and obtain is read by single-chip microcomputer, differentiate that mainboard, the most by self-inspection and realize start display, and controls corresponding charactron and display lamp is lighted or extinguishes to point out testing result by code；
By Single-chip Controlling serial communication mechanism, the system that the testing result of main frame uploads to outside is used for subsequent treatment；
And, drive corresponding 4th relay to control mainboard by drive mechanism and be simulated shutdown, and make mainboard power-off.
2. the method that mainboard detects automatically, uses the tool described in claim 1 to realize, it is characterised in that the method that described mainboard detects automatically comprises the steps of
Step one, manual installation CPU and RAM on mainboard to be tested, mainboard is put between upper needle plate and lower needle plate, driven corresponding relay to control cylinder moving by drive mechanism, in drive, needle plate is towards near the motion of the direction of lower needle plate, by forming, with mainboard the corresponding interface position, the probe that signal is connected respectively on upper needle plate and lower needle plate, the information of mainboard is sent to the corresponding mechanism of described Single-chip Controlling module；
Step 2, is detected mainboard automatically by Single-chip Controlling module, comprises procedure below further:
Step A, by voltage ratio compared with the BIOS cell voltage of mechanism's detecting master plate, if cell voltage is in the voltage range of setting, it is judged that be mounted with BIOS battery on mainboard, continues the process that automatically detects of step B；Otherwise, cell voltage is not in set point, it is judged that neglected loading BIOS battery on mainboard, jumps directly to step 3；
Step B, is driven corresponding relay by drive mechanism, controls mainboard and powers on；Single-chip Controlling reading mechanism reads SN bar code and MACID information based on SPI protocol from mainboard；
Step C, is driven corresponding relay by drive mechanism, controls mainboard and is simulated start；Wait the self-inspection of mainboard；Single-chip microcomputer reads the charactron code obtained after being decoded mainboard transmission signal by decoding mechanism, differentiate that mainboard, the most by self-inspection and be capable of start display, and controls corresponding charactron and display lamp is lighted or extinguishes to point out testing result by code；
Step D, single-chip microcomputer, by the testing result to main frame, uploads to the system of outside for subsequent treatment by serial communication mechanism；
Step E, is driven corresponding relay by drive mechanism, controls mainboard and is simulated shutdown, then makes mainboard power-off；
Step 3, after waiting that the self-checking of mainboard completes, controls cylinder and drives upper needle plate to move towards the direction away from lower needle plate, take out the mainboard being completed.
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| CN201210278299.8A CN103576075B (en) | 2012-08-07 | 2012-08-07 | The device and method that mainboard detects automatically |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103631684A (en) * | 2012-08-21 | 2014-03-12 | 达丰(上海)电脑有限公司 | Transformer type machine table for automatically testing notebook computer mainboard |
| CN103997644B (en) * | 2014-06-05 | 2016-02-10 | 广州朗国电子科技有限公司 | Liquid crystal TV set controls mainboard automatic testing equipment |
| CN104142681B (en) * | 2014-08-01 | 2017-07-28 | 珠海格力电器股份有限公司 | The control method and system and a kind of processor of FCT devices |
| CN104569509B (en) * | 2015-01-04 | 2017-09-15 | 昆山凯耀电子科技有限公司 | Circuit board for testing function of main machine |
| CN105807203A (en) * | 2016-02-19 | 2016-07-27 | 珠海格力电器股份有限公司 | Control method, apparatus and system of FCT equipment |
| CN105785255A (en) * | 2016-03-01 | 2016-07-20 | 珠海格力电器股份有限公司 | Detection device |
| CN113671344B (en) * | 2021-08-16 | 2024-05-28 | 苏州特斯捷电子科技有限公司 | Industrial control mainboard test fixture |
| CN116930722B (en) * | 2023-09-12 | 2024-01-05 | 悦芯科技股份有限公司 | Method and system for testing memory chip wafer |
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| CN1484146A (en) * | 2002-09-20 | 2004-03-24 | 联想(北京)有限公司 | Test card for computer |
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