CN103576075A - Device and method for detecting mainboard automatically - Google Patents
Device and method for detecting mainboard automatically Download PDFInfo
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- CN103576075A CN103576075A CN201210278299.8A CN201210278299A CN103576075A CN 103576075 A CN103576075 A CN 103576075A CN 201210278299 A CN201210278299 A CN 201210278299A CN 103576075 A CN103576075 A CN 103576075A
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Abstract
The invention relates to a device and method for detecting a mainboard automatically. The mainboard to be tested is placed between an upper needle board and a lower needle board which are arranged in a parallel and spaced mode. The upper needle board is connected with a ceiling board through a plurality of supporting blocks, the ceiling board is connected with an air cylinder, and therefore the air cylinder drives the upper needle board to move in the direction being close to or far away from the lower needle board, and probes on the upper needle board and the lower needle board are respectively in signal connection with an interface of the mainboard. Start display, automatic detection and result uploading of the mainboard are completed through a single chip microcomputer of a single chip microcomputer control module, a voltage comparison mechanism, a drive mechanism, a decoding mechanism, a serial communication mechanism, an SN bar code and MACID information reading mechanism of the mainboard, and the like; automated testing on the mainboard is achieved, and therefore manpower, material resources and time needed by testing are saved.
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, at SMT stage (SMT: surface device mounting technology) need start shooting and show test part mainboard, after being completed, result is uploaded to Shopfloor system (Shopfloor: the server that flow process is controlled), control in order to processing procedure.A kind of FCT(functional test of using) method and the step of test are 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), the equipment connection such as LCD display, power supply, netting twine, keyboard;
The 3rd step, start is inputted job number under DOS interface, judges that accordingly whether LCD display normally shows, then by MAC ID(hardware address) be uploaded to Shopfloor system.
The shortcoming of this kind of method of testing is, must realize based on existing DOS and Windows system, therefore, the tool and the equipment that not only use are many, the time long (under DOS system, mainboard of general test needs 200 seconds, needs 350 seconds under XP system) of test, the loss of tool is also many.Described tool is as a kind of instrument of assisting control position or action (or both).
Summary of the invention
For above problem, the present invention adopts a kind of operating systems such as DOS and Windows that need not enter just can realize the scheme that mainboard automatically detects, starts shooting and show and upload test result, and to have made starting material be the tool of NCC bakelite.In test, time only CPU and RAM need to be installed on mainboard, get mainboard and put into tool, will automatically complete reading of start, detection, MAC ID, and testing result is uploaded to Shop floor system.
In order to achieve the above object, technical scheme of the present invention is to provide the device that a kind of mainboard detects automatically, and this is a kind of tool that mainboard is automatically detected, started shooting and shows and upload test result, in described tool, comprises:
Parallel have spaced apart upper needle plate and a lower needle plate, and mainboard to be tested is placed between described upper needle plate and lower needle plate;
A sky plate, between itself and described upper needle plate, connects by the some back-up blocks that arrange;
A cylinder, it is by connecting a day plate, drive described sky plate and back-up block action, make described upper needle plate near or away from the direction motion of described lower needle plate, and then the some probes that arrange respectively on described upper needle plate and lower needle plate are contacted with corresponding interface position on mainboard, form signal and connect;
In described tool, also comprise the Single-chip Controlling module that described cylinder action is controlled; Between the corresponding interface of some described probes and described main monolithic module, be formed with signal and be connected, thereby the data message that makes described Single-chip Controlling module can obtain mainboard detects automatically.
In described Single-chip Controlling module, further comprise single-chip microcomputer, and be connected with described single-chip microcomputer signal, and the voltage ratio of under the control of described single-chip microcomputer, the BIOS cell voltage of mainboard being detected is compared with mechanism.
Described Single-chip Controlling module also comprises with described single-chip microcomputer signal and is connected, and be subject to described monolithic processor controlled driving mechanism, described driving mechanism is further connected with corresponding some relay signals, and by driving described relay respectively the running of the powering on of mainboard, start and described cylinder to be controlled.
Described Single-chip Controlling module also comprises with described single-chip microcomputer signal and is connected, be subject to described monolithic processor controlled decoding mechanism, the signal that described decoding mechanism sends described mainboard carries out decoding, according to decode results, form to judge whether mainboard can realize the code of self check and start demonstration, and the charactron that code is sent to described single-chip microcomputer and is connected with described decoding mechanism signal.
The single-chip microcomputer of described Single-chip Controlling module also comprises based on SPI agreement and obtains the SN bar code of described mainboard and the reading mechanism of MAC id information.
Described Single-chip Controlling module also comprises with described single-chip microcomputer signal and is connected, and mainboard testing result is uploaded to the serial communication mechanism of external system under described Single-chip Controlling.
Another technical scheme of the present invention is to provide a kind of method that mainboard detects automatically, use above-mentioned pick-up unit to realize, Single-chip Controlling module in this device further comprises single-chip microcomputer, and be connected with described single-chip microcomputer signal and be subject to described monolithic processor controlled voltage ratio compared with the reading mechanism of the SN bar code of mechanism, driving mechanism, decoding mechanism, serial communication mechanism, mainboard and MAC id information, described detection method comprises following steps:
Steps A, compared with the BIOS cell voltage of mechanism's detecting master plate, if cell voltage is in the voltage range of setting, has installed BIOS battery on judgement mainboard by voltage ratio, continues the automatic testing process of step B; Otherwise, cell voltage not in setting range, judgement mainboard on neglected loading BIOS battery, directly jump to step 3;
Step B, drives corresponding relay by driving mechanism, controls mainboard and powers on; Single-chip microcomputer, by SPI agreement, reads SN bar code and MAC id information from mainboard;
Step C, drives corresponding relay by driving mechanism, controls mainboard and simulates start; Wait for the self check of mainboard; Single-chip microcomputer reads and by decoding mechanism, mainboard signal transmission is carried out the charactron code that obtains after decoding, by code, differentiate mainboard whether by self check and can realize start and show, and control corresponding charactron and pilot lamp and light or extinguish to point out testing result;
Step D, single-chip microcomputer, by the testing result to main frame, uploads to outside system for subsequent treatment by serial communication mechanism;
Step e, drives corresponding relay by driving mechanism, controls mainboard and simulates shutdown, then make mainboard power-off;
Step 3, after the self-checking of wait mainboard completes, control cylinder drives upper needle plate towards the direction motion away from lower needle plate, the mainboard that taking-up is completed.
Compared with prior art, the device and method that mainboard of the present invention detects automatically, its advantage is: tool provided by the invention need not rely on DOS and Windows system in the past, just can be fast, effectively, accurately, the start that automatically completes at low cost mainboard shows test, and uploads the testing results such as MAC ID to Shopfloor system.Therefore, the present invention tests a mainboard and only needs 45 seconds, has solved in current method of testing the shortcomings such as long, tool used of test duration and equipment are many, without using brush bore brush SN bar code, has saved every station 1PCS(once) brush rifle.Key is can realize the automation mechanized operation of mainboard test by device and method of the present invention, and this is that existing FCT test cannot be accomplished.
Accompanying drawing explanation
Fig. 1 is the mainboard of the present invention external structure schematic diagram of the device of detection automatically;
Fig. 2 is the functional-block diagram of Single-chip Controlling module in the automatic device detecting of mainboard of the present invention;
Fig. 3 is the electrical block diagram of voltage comparator in the module of Single-chip Controlling shown in Fig. 2;
Fig. 4 is debug card(decoder card in the module of Single-chip Controlling shown in Fig. 2) electrical block diagram;
Fig. 5 is the workflow schematic diagram of mainboard automatic testing method of the present invention.
Embodiment
As shown in Figure 1, the present invention detects automatically in order to realize mainboard, has made the tool that a kind of starting material are NCC bakelite.Mainboard 100 to be tested is placed between this tool horizontally disposed upper needle plate 40 and lower needle plate 50; On this, between the sky plate 20 of needle plate 40 and the side of being located thereon, by the some back-up blocks 30 that arrange, connect; Be for example a cylinder 10 that is connected to day plate 20 tops, for controlling day plate 20, back-up block 30 actions, to drive upper needle plate 40 to realize, press down or rise.At upper needle plate 40, be provided with some contacts probe 60 down, on lower needle plate 50, be provided with some contacts probe 60 upward simultaneously, when upper needle plate 40 is pressed down by cylinder 10 controls, between the interface position of the probe 60 of upper needle plate 40 and lower needle plate 50 respectively and on mainboard 100, the correspondence that forms the transmission such as energy supporting signal data connects.
Some slave parts that arrange in tool do not illustrate in Fig. 1, such as being the framed structure that supports the parts such as cylinder, in order to guide the guide rod of upper needle plate lifting position or guide rail etc.; For example again to be provided with inductor, when staff enters into the induction range of inductor, can control cylinder automatic-ascending and can not press down, while preventing from picking and placeing mainboard, press hand.
The running of the above-mentioned hardware configuration of tool, a Single-chip Controlling module of main dependence is controlled, the major part of this Single-chip Controlling module can be produced in a master control board, is also formed with corresponding signal and is connected between the relevant interface of the probe of upper needle plate and lower needle plate and described main monolithic module.In tool, being also provided with a control box (not shown) and placing described master control board, can be control box to be placed in to the below of lower needle plate.
Other are for example the Switching Power Supplies that produces the required DC voltage of master control board, drive the solenoid valve of cylinder, debug card(decoder card), during test, contact the heat radiation copper billet of heat radiation with the CPU on mainboard, and can produce radiator fan of the wind that blows to heat radiation copper billet etc., can be placed in described control box.And be for example the starting switch that starts mainboard test, control the power switch that alternating current passes into described Switching Power Supply, the emergency stop switch can control cylinder rising at Emergency time, the counter of counting measuring the quantity of mainboard, and some pilot lamp of indication mainboard test result quality etc., can be arranged on the surface of control box, handled easily and result show.
Above describe, such as the driving circuit that is the parts such as inductor, some switches, radiator fan, counter, pilot lamp, can adopt the conventional method of this area to realize, the driving circuit of these parts can be to be connected with described master control board signal, and control by described master control board is unified, can be to be also connected and to control according to the corresponding conditions in testing with one or more other control device signals independently.
Be a kind of embodiment of the module of Single-chip Controlling described in the present invention as shown in Figure 2, wherein adopt anti-interference strong singlechip chip PIC16F877A as core devices.Voltage comparable chip LM358, voltage comparator A1 and the A2 of built-in two groups of IN4148 types, can make a window voltage indicator, and the auxiliary element of described voltage comparator and circuit connect can be with further reference to shown in Fig. 3.When mainboard is when the voltage U i of voltage comparable chip output is between 2.9V ~ 3.1V, voltage comparable chip is to the singlechip chip output high level that signal connects with it, and the BIOS battery that can detect 3V voltage on mainboard with this has or not neglected loading.
Adopted special driving chip ULN2003 to be connected with described singlechip chip signal, and then by driving the some relays that are connected with special driving chip signal, controlled powering on of mainboard, the actions such as start and cylinder lifting.
Cooperation is referring to shown in Fig. 2, Fig. 4, debug card is used chip AK2001, can carry out decoding to the signal being transmitted by mainboard, and control charactron and carry out reveal codes, whether can differentiate mainboard from code and by self check, be realized and started shooting and show, singlechip chip receives with IO interface the charactron code that debug card sends.The signal transmitting between debug card and mainboard comprises: LAD[3:0] (LPC signal), these four signal wires are used for respectively transmitting order, address and the data of LPCn Bus; LFRAME#(LPC framework), when this signal is effective, indication starts or finishes a LPC cycle; PCI RST# (PCI reset signal) and PCI CLK#(PCI clock signal).The signal that debug card transmits when realizing decoding function, comprises LED[A:G] the driving signal of (O output) seven segment digital tubes, also to singlechip chip, send these signals simultaneously; A digital high position and the low level signal enabling that show of DGH# and DGL#(), by auxiliary element circuit such as resistance, be connected to separately the Enable Pin of two charactrons.
As shown in Figure 2, Single-chip Controlling module of the present invention can also read from mainboard SN bar code and the MAC id information recording its EEPROM based on SPI agreement, to singlechip chip, sends.The serial communication part that this Single-chip Controlling module arranges, can be used MAX232 chip to realize, and it is connected with singlechip chip signal, in order to mainboard testing result is uploaded to outside Shopfloor system.
Shown in Figure 5, introduce the hardware configuration and the Single-chip Controlling module that the present invention is based on above-mentioned tool, mainboard is carried out to the method automatically detecting.Key step below the method:
Whether steps A, installed BIOS battery by voltage comparable chip detecting master plate; If voltage comparable chip, to singlechip chip output high level, does not illustrate that the voltage of mainboard, not within the scope of 2.9V ~ 3.1V, illustrates the BIOS battery that 3V is not installed, directly jump to step 3; Otherwise, battery has been installed, and has been entered step B.
Step B, by driving the corresponding relay of chip drives, controls mainboard power on (being for example 19V); Singlechip chip, by SPI agreement, reads SN bar code and MAC id information from mainboard.
Step C, by driving the corresponding relay of chip drives, controls mainboard and simulates start, and wait for the self check of mainboard; Singlechip chip reads the charactron code that signal interpretation obtains to mainboard by debug card, by code, differentiate mainboard and whether by self check, also can realize start demonstration, (can self check and start show) that if the mainboard in judgement test is non-defective unit, the pilot lamp of controlling pick-up unit surface gives a green light; If not non-defective unit, send out a warning.
Step D, singlechip chip, by testing result (being mainly MAC id information), partly uploads to outside Shopfloor system by serial communication.
Step e, via driving chip and corresponding relay, controls mainboard and simulates shutdown, then make mainboard power-off.
Step 3, after the self-checking of wait mainboard completes, control cylinder drives upper needle plate to rise; Now, the quantity can control counter showing increases.Finally take out the mainboard being completed.
In sum, the device and method that above-mentioned mainboard of the present invention automatically detects, can realize automation mechanized operation, thereby has greatly simplified human and material resources and time required in test process.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Those skilled in the art, read after foregoing, for multiple modification of the present invention with to substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. the device that mainboard detects automatically, is a kind of tool that mainboard is automatically detected, started shooting and shows and upload test result, it is characterized in that, in described tool, comprises:
Parallel have spaced apart upper needle plate and a lower needle plate, and mainboard to be tested is placed between described upper needle plate and lower needle plate;
A sky plate, between itself and described upper needle plate, connects by the some back-up blocks that arrange;
A cylinder, it is by connecting a day plate, drive described sky plate and back-up block action, make described upper needle plate near or away from the direction motion of described lower needle plate, and then the some probes that arrange respectively on described upper needle plate and lower needle plate are contacted with corresponding interface position on mainboard, form signal and connect;
In described tool, also comprise the Single-chip Controlling module that described cylinder action is controlled; Between the corresponding interface of some described probes and described main monolithic module, be formed with signal and be connected, thereby the data message that makes described Single-chip Controlling module can obtain mainboard detects automatically.
2. the device that mainboard detects automatically as claimed in claim 1, is characterized in that,
In described Single-chip Controlling module, further comprise single-chip microcomputer, and be connected with described single-chip microcomputer signal, and the voltage ratio of under the control of described single-chip microcomputer, the BIOS cell voltage of mainboard being detected is compared with mechanism.
3. the device that mainboard detects automatically as claimed in claim 2, is characterized in that,
Described Single-chip Controlling module also comprises with described single-chip microcomputer signal and is connected, and be subject to described monolithic processor controlled driving mechanism, described driving mechanism is further connected with corresponding some relay signals, and by driving described relay respectively the running of the powering on of mainboard, start and described cylinder to be controlled.
4. the device that mainboard detects automatically as claimed in claim 2, is characterized in that,
Described Single-chip Controlling module also comprises with described single-chip microcomputer signal and is connected, be subject to described monolithic processor controlled decoding mechanism, the signal that described decoding mechanism sends described mainboard carries out decoding, according to decode results, form to judge whether mainboard can realize the code of self check and start demonstration, and the charactron that code is sent to described single-chip microcomputer and is connected with described decoding mechanism signal.
5. the device that mainboard detects automatically as claimed in claim 2, is characterized in that,
The single-chip microcomputer of described Single-chip Controlling module also comprises based on SPI agreement and obtains the SN bar code of described mainboard and the reading mechanism of MAC id information.
6. the device that mainboard detects automatically as claimed in claim 2, is characterized in that,
Described Single-chip Controlling module also comprises with described single-chip microcomputer signal and is connected, and mainboard testing result is uploaded to the serial communication mechanism of external system under described Single-chip Controlling.
7. the method that a mainboard detects automatically, right to use requires the pick-up unit described in 1 to realize, Single-chip Controlling module in device further comprises single-chip microcomputer, and be connected with described single-chip microcomputer signal and be subject to described monolithic processor controlled voltage ratio compared with the reading mechanism of the SN bar code of mechanism, driving mechanism, decoding mechanism, serial communication mechanism, mainboard and MAC id information, it is characterized in that, described detection method comprises following steps:
Step 1, manual installation CPU and RAM on mainboard to be tested, mainboard is put between upper needle plate and lower needle plate, by driving mechanism, drive corresponding relay to come control cylinder to move, in drive, needle plate is towards the direction motion near lower needle plate, by upper needle plate and the probe being connected with mainboard the corresponding interface position formation signal respectively on lower needle plate, the information of mainboard is sent to the corresponding mechanism of described Single-chip Controlling module;
Step 2, detects mainboard automatically by Single-chip Controlling module, further comprises following process:
Steps A, compared with the BIOS cell voltage of mechanism's detecting master plate, if cell voltage is in the voltage range of setting, has installed BIOS battery on judgement mainboard by voltage ratio, continues the automatic testing process of step B; Otherwise, cell voltage not in setting range, judgement mainboard on neglected loading BIOS battery, directly jump to step 3;
Step B, drives corresponding relay by driving mechanism, controls mainboard and powers on; Single-chip microcomputer, by SPI agreement, reads SN bar code and MAC id information from mainboard;
Step C, drives corresponding relay by driving mechanism, controls mainboard and simulates start; Wait for the self check of mainboard; Single-chip microcomputer reads and by decoding mechanism, mainboard signal transmission is carried out the charactron code that obtains after decoding, by code, differentiate mainboard whether by self check and can realize start and show, and control corresponding charactron and pilot lamp and light or extinguish to point out testing result;
Step D, single-chip microcomputer, by the testing result to main frame, uploads to outside system for subsequent treatment by serial communication mechanism;
Step e, drives corresponding relay by driving mechanism, controls mainboard and simulates shutdown, then make mainboard power-off;
Step 3, after the self-checking of wait mainboard completes, control cylinder drives upper needle plate towards the direction motion away from lower needle plate, the mainboard that taking-up is completed.
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| 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 |
| CN103997644A (en) * | 2014-06-05 | 2014-08-20 | 广州朗国电子科技有限公司 | Automatic LCD TV control mainboard testing device |
| CN104142681A (en) * | 2014-08-01 | 2014-11-12 | 珠海格力电器股份有限公司 | FCT device control method and system and processor |
| CN104569509A (en) * | 2015-01-04 | 2015-04-29 | 昆山凯耀电子科技有限公司 | Mainboard function test machine |
| CN105785255A (en) * | 2016-03-01 | 2016-07-20 | 珠海格力电器股份有限公司 | Detection device |
| CN105807203A (en) * | 2016-02-19 | 2016-07-27 | 珠海格力电器股份有限公司 | Control method, device and system of FCT (fiber channel terminal) equipment |
| CN113671344A (en) * | 2021-08-16 | 2021-11-19 | 苏州特斯捷电子科技有限公司 | Industrial control mainboard test fixture |
| CN116930722A (en) * | 2023-09-12 | 2023-10-24 | 悦芯科技股份有限公司 | Method and system for testing memory chip wafer |
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