CN107942238A - The test point distribution method and device of printed circuit board (PCB) - Google Patents

The test point distribution method and device of printed circuit board (PCB) Download PDF

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Publication number
CN107942238A
CN107942238A CN201711492282.1A CN201711492282A CN107942238A CN 107942238 A CN107942238 A CN 107942238A CN 201711492282 A CN201711492282 A CN 201711492282A CN 107942238 A CN107942238 A CN 107942238A
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CN
China
Prior art keywords
point
test
reverse
signal
signal receiving
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.)
Withdrawn
Application number
CN201711492282.1A
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Chinese (zh)
Inventor
张恂
王星
欧阳云轩
翟学涛
杨朝辉
高云峰
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Han s Laser Technology Industry Group Co Ltd
Shenzhen Hans CNC Technology Co Ltd
Original Assignee
Han s Laser Technology Industry Group Co Ltd
Shenzhen Hans CNC Technology Co Ltd
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Application filed by Han s Laser Technology Industry Group Co Ltd, Shenzhen Hans CNC Technology Co Ltd filed Critical Han s Laser Technology Industry Group Co Ltd
Priority to CN201711492282.1A priority Critical patent/CN107942238A/en
Publication of CN107942238A publication Critical patent/CN107942238A/en
Withdrawn legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2801Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2801Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
    • G01R31/2806Apparatus therefor, e.g. test stations, drivers, analysers, conveyors

Abstract

The present invention relates to test point distribution method, device, computer equipment and the storage medium of a kind of printed circuit board (PCB), this method includes:Obtain front test point set and reverse side test point set;It is the first signal launch point to choose a positive test point;It is the first signal receiving point to choose a positive test point, and it is secondary signal receiving point and the 3rd signal receiving point to choose two reverse side test points, obtains the test combination of a hair three receipts;When reverse side test point is assigned, it is secondary signal launch point to choose a reverse side test point;Two positive test points are chosen as the 4th signal receiving point and the 5th signal receiving point, obtain the test combination of a hair two receipts.The above method, pass through the renewal successively of signal receiving point, so that printed circuit board (PCB) whole test point is assigned, and form the combination of three receiving points of a substantial amounts of launch point, take full advantage of four probes, it ensure that the utilization rate of flying probe middle probe, and then improve the testing efficiency of flying probe.

Description

The test point distribution method and device of printed circuit board (PCB)
Technical field
The present invention relates to flying probe test technology field, a kind of test point distribution method more particularly to printed circuit board (PCB), Device, computer equipment and storage medium.
Background technology
Multiaxis flying probe tester is made of four probes of tow sides, and in actual test, installation is by motor on X-Y axis The probe that independently can quickly move of driving, printed circuit board to be tested (PCB) are clamped in the centre of equipment by fixture, The solder joint of the printed circuit board (PCB) on machine is quickly moved and is clamped in Z-direction using stepper motor driven test axis Contacted and carry out electric measurement.
There is thousands of or even up to ten thousand test points on usual one piece of PCB, so may there are 1 launch point and 3 during test The combination of a receiving point, 1 launch point and 2 receiving points and 1 launch point and 1 receiving point.
But if the combination unreasonable distribution of launch point and receiving point, then will result in the sky of probe in test Put, so as to cause less efficient, consuming time and delay production.
The content of the invention
Based on this, it is necessary to a kind of the problem of being produced for less efficient, consuming time and delay, there is provided printed circuit Test point distribution method, device, computer equipment and the storage medium of plate..
A kind of test point distribution method of printed circuit board (PCB), including:
The test point information of printed circuit board (PCB) front and reverse side is obtained, obtains front test point set and reverse side test point set Close;
When the quantity of positive test point in front test point set is less than the number of reverse side test point in reverse side test point set During amount, using any one positive test point in front test point set as the first signal launch point;
Tested successively from front in point set and select the positive test point of not selected mistake as the first signal launch point Corresponding first signal receiving point, reverse side test any two points of the not selected mistake in point set respectively as first signal The corresponding secondary signal receiving point of launch point and the 3rd signal receiving point, until the reverse side test in reverse side test point set Point selection finishes, and obtains the first signal launch point test corresponding with three signal receiving points and combines;
When the reverse side test point that reverse side is tested in point set is assigned, using any one reverse side test point as second Signal launch point;
Tested successively from front in point set and select any two front test point of not selected mistake as the 4th signal Receiving point and the 5th signal receiving point, until the positive test point is assigned, obtain the secondary signal launch point and two A signal receiving point is corresponding to test combination.
In one embodiment, the method further includes:The test point letter for obtaining printed circuit board (PCB) front and reverse side Breath, obtains the step of point set and reverse side test point set are tested in front, including:
Obtain printed circuit board (PCB) front test point information and reverse side test point information;
Each positive test point is arranged by the first order of abscissa, obtains front test point set;
Each reverse side test point is arranged by the first order of abscissa, obtains reverse side test point set;
Described tested successively from front in point set selects the positive test point of not selected mistake as the signal launch point Corresponding first signal receiving point, any two points that reverse side tests the not selected mistake in point set are launched respectively as the signal The step of corresponding secondary signal receiving point of point and the 3rd signal receiving point, including:
The most end front test point of not selected mistake is selected as the signal launch point from the front test point set The first signal receiving point, reverse side test point set in not selected mistake most preceding reverse side test point as the signal launch point Secondary signal receiving point, threeth signal receiving point of the most end reverse side test point as the test point;
Described tested successively from front in point set selects any two front test point of not selected mistake as the 4th The step of signal receiving point and the 5th signal receiving point, including:Tested successively from front in point set and select not selected mistake most Preceding front test point is as the 4th signal receiving point, and most end front test point is as the 5th signal receiving point.
In one embodiment, will when the unassigned reverse side test point that reverse side is tested in point set is one remaining The reverse side test point obtains secondary signal launch point survey corresponding with a signal receiving point as the 6th signal receiving point Examination combination.
In one embodiment, the method further includes:
When the quantity of positive test point in front test point set is more than the number of reverse side test point in reverse side test point set During amount, using any one reverse side test point in reverse side test point set as the first signal launch point;
Test from the negative in point set successively and select the reverse side test point of not selected mistake as the first signal launch point Any two points of the not selected mistake in point set are tested respectively as first signal in corresponding first signal receiving point, front The corresponding secondary signal receiving point of launch point and the 3rd signal receiving point, until the front test in point set is tested in the front Point selection finishes, and obtains the first signal launch point test corresponding with three signal receiving points and combines;
When the positive test point that front is tested in point set is assigned, using any one positive test point as second Signal launch point;
Test from the negative in point set successively and select any two reverse side test point of not selected mistake as the 4th signal Receiving point and the 5th signal receiving point, until the reverse side test point is assigned, obtain the secondary signal launch point and two A signal receiving point is corresponding to test combination.
In one embodiment, the method further includes:
Described test from the negative in point set successively selects the reverse side test point of not selected mistake to be sent out as first signal The corresponding first signal receiving point of exit point, front test point set in not selected mistake any two points respectively as this first The step of corresponding secondary signal receiving point of signal launch point and the 3rd signal receiving point, including:
Tested from the reverse side in point set and select the most end reverse side test point of not selected mistake as the signal launch point The first signal receiving point, the most preceding positive test point of not selected mistake is as the signal launch point in front test point set Secondary signal receiving point, threeth signal receiving point of the most end front test point as the test point;
Described test from the negative in point set successively selects any two reverse side test point of not selected mistake as the 4th The step of signal receiving point and the 5th signal receiving point, including:Test from the negative in point set successively and select not selected mistake most Preceding reverse side test point is as the 4th signal receiving point, and most end reverse side test point is as the 5th signal receiving point.
In one embodiment, the method further includes:
When the unassigned positive test point that front is tested in point set is one remaining, using the front test point as 6th signal receiving point, obtains secondary signal launch point test corresponding with a signal receiving point and combines.
Above-mentioned flying probe measuring point distribution method, connects in printed circuit board (PCB) obverse and reverse setting signal launch point and signal Sink, passes through the renewal successively of signal receiving point so that printed circuit board (PCB) whole test point is assigned, and forms substantial amounts of one The combination of a three receiving points of launch point and a small amount of two receiving points of a launch point, the group of three receiving points of a launch point Conjunction has used four probes, and three probes have been applied in combination in two receiving points of a launch point, so as to take full advantage of flying needle Four probes of test machine, improve the utilization rate of flying probe middle probe and then improve the testing efficiency of flying probe, section The time is saved.
Brief description of the drawings
Fig. 1 is the flow chart of the measuring point distribution method of the printed circuit board (PCB) of an embodiment;
Fig. 2 is the flow chart of the measuring point distribution method of the printed circuit board (PCB) of another embodiment;
Fig. 3 is the flow chart of the measuring point distribution method of the printed circuit board (PCB) of another embodiment;
Fig. 4 is the flow chart of the measuring point distribution method of the printed circuit board (PCB) of another embodiment;
Fig. 5 is the flying probe test point distributor schematic diagram of the printed circuit board (PCB) of an embodiment;
Fig. 6 is the flying probe test point distributor schematic diagram of the printed circuit board (PCB) of another embodiment;
Fig. 7 is the flying probe test point distributor schematic diagram of the printed circuit board (PCB) of another embodiment.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
Fig. 1 is the flow chart of the measuring point distribution method of the printed circuit board (PCB) of an embodiment.As shown in Figure 1, the present invention provides A kind of test point distribution method of printed circuit board (PCB), including:
Step S101:The test point information of printed circuit board (PCB) front and reverse side is obtained, obtains front test point set and anti- Point set is tested in face.
Specifically, the flying probe file of printed circuit board (PCB), including .emm/.ipc/.356 files etc. are read, passes through flying needle Test file obtains the positive and negative test point quantity of printed circuit board (PCB), and forms the collection of positive test point and reverse side test point respectively Close.
More specifically, the test point of printed circuit board (PCB) is that whether zero device on test circuit plate up to specification and weldering Property, such as checking the working condition of the resistance on a circuit board, simplest method is exactly to take universal meter measurement to test The both ends of point.
Step S102:Surveyed when the quantity of positive test point in front test point set is less than reverse side in reverse side test point set During the quantity of pilot, using any one positive test point in front test point set as the first signal launch point.
Specifically, more positive test point set and reverse side test the quantity of test point in point set, when positive test point When the quantity of positive test point is less than the quantity of reverse side test point in reverse side test point set in set, point set is tested in front For one test point of middle selection as the first signal launch point, the first signal launch point of selection can be in front test point set Any unselected signal testing point, wherein, signal launch point is the outflow point of electric current, according to the flow direction of electric current in circuit, The outflow point of electric current is defined as signal launch point, the inflow point of electric current is defined as signal receiving point.
Step S103:The positive test point of not selected mistake is selected from front test point set successively as first letter Number corresponding first signal receiving point of launch point, any two points of the not selected mistake in reverse side test point set are respectively as this The corresponding secondary signal receiving point of first signal launch point and the 3rd signal receiving point, until the reverse side in reverse side test point set Test point selection finishes, and obtains the test corresponding with three signal receiving points of the first signal launch point and combines.
Specifically, on the basis of test point set has selected the first signal launch point in front, front test is chosen Unselected positive test point chooses reverse side as the first signal receiving point corresponding with the first signal launch point in point set Unselected any two points are secondary signal receiving point and the 3rd signal receiving point in test point set, i.e., electric current in circuit Flow to as from the first signal launch point to the first signal receiving point, secondary signal receiving point and the 3rd signal receiving point, until anti- Reverse side test point in face test point set is assigned.
More specifically, when the quantity of reverse side test point is even number, due to test every time choose two it is unselected anti- Face test point is tested, and therefore, reverse side test point is just assigned, and be thus form a large amount of signal launch points and is corresponded to The situation of three signal receiving points, i.e. one, front signal launch point correspond to two signals of a positive signal receiving point and reverse side Receiving point;When the quantity of reverse side test point is odd number, since two unselected reverse side test click-through are chosen in test every time Row test, therefore, finally only can a remaining reverse side test point be allocated, thus form a signal launch point and correspond to two The situation of a signal receiving point, i.e. one, front signal launch point correspond to positive one signal of a signal receiving point and reverse side and connect Sink.
Step S104:When the reverse side test point that reverse side is tested in point set is assigned, any one reverse side is tested Point is used as secondary signal launch point.
Specifically, since there is a signal receiving point in front, per the unselected signal receiving point of sub-distribution one, reverse side There are two signal receiving points, per the unselected signal receiving point of sub-distribution two, therefore reverse side test point can be caused to distribute Into and the situation of the positive unallocated completion of test point, at this time, regard any one reverse side test point as secondary signal launch point, standard It is standby that front is allocated for the test point being assigned.
Step S105:Any two front test point conduct that selects not selected mistake is tested in point set from front successively 4th signal receiving point and the 5th signal receiving point, until positive test point is assigned, obtain secondary signal launch point and two A signal receiving point is corresponding to test combination.
Specifically, after any reverse side test point is chosen as secondary signal launch point, point set is tested in front successively The middle positive test point of non-selected two of selection is as the 4th signal receiving point and the 5th signal receiving point, until front test Point is assigned.
More specifically, when non-selected test point quantity is even number in front test point set, due to test every time Choose two unselected positive test points to be tested, therefore, positive test point is just assigned, and thus form portion It is divided to a signal launch point to correspond to the situation of two signal receiving points, i.e. one signal launch point of reverse side corresponds to positive two signals Receiving point;When the quantity of positive test point is odd number, since two unselected reverse side test click-through are chosen in test every time Row test, therefore, finally only can remaining one positive test point be allocated, thus form a signal launch point and correspond to one The situation of a signal receiving point, i.e. one signal launch point of reverse side correspond to a positive signal receiving point.
Above-mentioned flying probe measuring point distribution method, connects in printed circuit board (PCB) obverse and reverse setting signal launch point and signal Sink, passes through the renewal successively of signal receiving point so that printed circuit board (PCB) whole test point is assigned, and forms substantial amounts of one The combination of a three receiving points of launch point and a small amount of two receiving points of a launch point, the group of three receiving points of a launch point Conjunction has used four probes, and three probes have been applied in combination in two receiving points of a launch point, so as to take full advantage of flying needle Four probes of test machine, improve the utilization rate of flying probe middle probe and then improve the testing efficiency of flying probe, section The time is saved.
Fig. 2 is the flow chart of the measuring point distribution method of the printed circuit board (PCB) of another embodiment.As shown in Fig. 2, in a reality Apply in example, the measuring point distribution method of printed circuit board (PCB) comprises the following steps S201 to S211:
Step S201:Obtain printed circuit board (PCB) front test point information and reverse side test point information.
Specifically, the flying probe file of printed circuit board (PCB), including .emm/.ipc/.356 files etc. are read, passes through flying needle Test file obtains the test point information of printed circuit board (PCB), includes the coordinate of positive and negative test point quantity, distribution and each test point Deng.
Step S202:Each positive test point is arranged by the first order of abscissa, obtains front test point set.
Specifically, choose the first order and be arranged as ascending order arrangement, each test point corresponds to a coordinate, is surveyed according to each front The abscissa of pilot carries out ascending order arrangement, obtains front test point set.
Step S203:Each reverse side test point is arranged by the first order of abscissa, obtains reverse side test point set.
Specifically, choose the first order and be arranged as ascending order arrangement, each test point corresponds to a coordinate, is surveyed according to each reverse side The abscissa of pilot carries out ascending order arrangement, obtains reverse side test point set.
Step S204:Judge whether the quantity of positive test point is less than the quantity of reverse side test point.
Step S205:Surveyed when the quantity of positive test point in front test point set is less than reverse side in reverse side test point set During the quantity of pilot, using any one positive test point in front test point set as the first signal launch point.
Step S206:Tested from front in point set and select the most end front test point of not selected mistake to be sent out as the signal First signal receiving point of exit point, the most preceding reverse side test point that reverse side tests not selected mistake in point set are launched as the signal The secondary signal receiving point of point, threeth signal receiving point of the most end reverse side test point as the test point, until the reverse side is surveyed Reverse side test point selection in pilot set finishes, and obtains the first signal launch point test group corresponding with three signal receiving points Close.
Specifically, tested from front in point set and choose unselected most end front test point, is i.e. front test point set First signal receiving point of the unselected test point of abscissa maximum as signal launch point, tests point set from the negative in conjunction Unselected most preceding reverse side test point is chosen in conjunction, i.e., the unselected test of abscissa minimum in reverse side test point set Secondary signal receiving point of the point as signal launch point, chooses unselected most end reverse side test point, i.e. reverse side test point set Threeth signal receiving point of the unselected test point of abscissa maximum as signal launch point in conjunction.
Step S207:Judge whether reverse side test point is assigned.
Step S208:When the reverse side test point that reverse side is tested in point set is assigned, any one reverse side is tested Point is used as secondary signal launch point.
Step S209:Tested successively from front in point set and select the most preceding positive test point of not selected mistake as the 4th letter Number receiving point, most end front test point, until the positive test point is assigned, obtain described as the 5th signal receiving point The test corresponding with two signal receiving points of secondary signal launch point is combined.
Specifically, tested from front in point set and choose unselected most preceding positive test point, i.e. front test point set Fourth signal receiving point of the unselected test point of abscissa minimum as signal launch point in conjunction, point set is tested from front Unselected most end front test point is chosen in conjunction, i.e., the unselected test of abscissa maximum in front test point set Fiveth signal receiving point of the point as signal launch point.
Step S210:Judge whether the unassigned reverse side test point in reverse side test point set is one remaining.
Step S211:Using the reverse side test point as the 6th signal receiving point, secondary signal launch point and a letter are obtained The corresponding test combination of number receiving point.
Specifically, when the quantity of reverse side test point is odd number, since two unselected reverse side are chosen in test every time Test point is tested, therefore, finally only can a remaining reverse side test point be allocated, thus form a signal transmitting The situation of the corresponding signal receiving point of point, i.e. one, front signal launch point correspond to a positive signal receiving point and reverse side one A signal receiving point.
Above-mentioned flying probe measuring point distribution method, connects in printed circuit board (PCB) obverse and reverse setting signal launch point and signal Sink, passes through the renewal successively of signal receiving point so that printed circuit board (PCB) whole test point is assigned, and forms substantial amounts of one The combination of a three receiving points of launch point and two receiving points of launch point of part one and an a small amount of launch point one connect Four probes, the launch point two of part one has been applied in combination in the combination of sink, substantial amounts of three receiving points of a launch point Three probes have been applied in combination in receiving point, and a small amount of one receiving point of a launch point has been applied in combination two probes, more It make use of four probes of flying probe tester in the case of number, improve the utilization rate of flying probe middle probe and then improve flying needle The testing efficiency of test, saves the time.
Fig. 3 is the flow chart of the measuring point distribution method of the printed circuit board (PCB) of another embodiment.As shown in figure 3, in a reality Apply in example, the measuring point distribution method of printed circuit board (PCB) further includes:
Step S301:The test point information of printed circuit board (PCB) front and reverse side is obtained, obtains front test point set and anti- Point set is tested in face.
Step S302:Surveyed when the quantity of positive test point in front test point set is more than reverse side in reverse side test point set During the quantity of pilot, using any one reverse side test point in reverse side test point set as the first signal launch point.
Specifically, more positive test point set and reverse side test the quantity of test point in point set, when positive test point When the quantity of positive test point is more than the quantity of reverse side test point in reverse side test point set in set, point set is tested in reverse side For one test point of middle selection as the first signal launch point, the first signal launch point of selection can be that reverse side is tested in point set Any unselected signal testing point.
Step S304:The reverse side test point of not selected mistake is selected in test point set from the negative successively as first letter Number corresponding first signal receiving point of launch point, any two points of the not selected mistake in front test point set are respectively as this The corresponding secondary signal receiving point of first signal launch point and the 3rd signal receiving point, until the front in front test point set Test point selection finishes, and obtains the test corresponding with three signal receiving points of the first signal launch point and combines.
Specifically, on the basis of reverse side test point set has selected the first signal launch point, reverse side test is chosen Unselected reverse side test point chooses front as the first signal receiving point corresponding with the first signal launch point in point set Unselected any two points are secondary signal receiving point and the 3rd signal receiving point in test point set, i.e., electric current in circuit Flow to as from the first signal launch point to the first signal receiving point, secondary signal receiving point and the 3rd signal receiving point, until just Positive test point in face test point set is assigned.
More specifically, when the quantity of reverse side test point is even number, due to test every time choose two it is unselected anti- Face test point is tested, and therefore, reverse side test point is just assigned, and be thus form a large amount of signal launch points and is corresponded to The situation of three signal receiving points, i.e. one, front signal launch point correspond to two signals of a positive signal receiving point and reverse side Receiving point;When the quantity of reverse side test point is odd number, since two unselected reverse side test click-through are chosen in test every time Row test, therefore, finally only can a remaining reverse side test point be allocated, thus form a signal launch point and correspond to two The situation of a signal receiving point, i.e. one, front signal launch point correspond to positive one signal of a signal receiving point and reverse side and connect Sink.
Step S304:When the positive test point that front is tested in point set is assigned, any one front is tested Point is used as secondary signal launch point.
Specifically, since reverse side has a signal receiving point, per the unselected signal receiving point of sub-distribution one, front There are two signal receiving points, per the unselected signal receiving point of sub-distribution two, therefore positive test point can be caused to distribute Into and the situation of the unallocated completion of reverse side test point, at this time, regard any one positive test point as secondary signal launch point, standard Standby is that the test point being assigned is allocated to reverse side.Step S305:Test from the negative in point set successively and select not to be chosen Any two reverse side test point selected is as the 4th signal receiving point and the 5th signal receiving point, until reverse side test point is distributed Finish, obtain the test corresponding with two signal receiving points of secondary signal launch point and combine.
Specifically, after any positive test point is chosen as secondary signal launch point, point set is tested in reverse side successively The middle non-selected two reverse side test points of selection are as the 4th signal receiving point and the 5th signal receiving point, until reverse side is tested Point is assigned.
More specifically, when non-selected test point quantity is even number in reverse side test point set, due to test every time Choose two unselected reverse side test points to be tested, therefore, reverse side test point is just assigned, and thus form portion It is divided to a signal launch point to correspond to the situation of two signal receiving points, i.e., a positive signal launch point corresponds to two signals of reverse side Receiving point;When the quantity of reverse side test point is odd number, since the unselected front test of test selection two every time clicks through Row test, therefore, finally only can a remaining reverse side test point be allocated, thus form a signal launch point and correspond to one The situation of a signal receiving point, i.e., a positive signal launch point correspond to one signal receiving point of reverse side.
Fig. 4 is the flow chart of the measuring point distribution method of the printed circuit board (PCB) of another embodiment.As shown in figure 4, in a reality Apply in example, the measuring point distribution method of printed circuit board (PCB) comprises the following steps S401 to S411.
Step S401:Obtain printed circuit board (PCB) front test point information and reverse side test point information.
Specifically, the flying probe file of printed circuit board (PCB), including .emm/.ipc/.356 files etc. are read, passes through flying needle Test file obtains the test point information of printed circuit board (PCB), includes the coordinate of positive and negative test point quantity, distribution and each test point Deng.
Step S402:Each positive test point is arranged by the first order of abscissa, obtains front test point set.
Specifically, choose the first order and be arranged as ascending order arrangement, each test point corresponds to a coordinate, is surveyed according to each front The abscissa of pilot carries out ascending order arrangement, obtains front test point set.
Step S403:Each reverse side test point is arranged by the first order of abscissa, obtains reverse side test point set.
Specifically, choose the first order and be arranged as ascending order arrangement, each test point corresponds to a coordinate, is surveyed according to each reverse side The abscissa of pilot carries out ascending order arrangement, obtains reverse side test point set.
Step S404:Judge whether the quantity of positive test point is more than the quantity of reverse side test point.
Step S405:Surveyed when the quantity of positive test point in front test point set is more than reverse side in reverse side test point set During the quantity of pilot, using any one reverse side test point in reverse side test point set as the first signal launch point.
Step S406:Test from the negative in point set and select the most end reverse side test point of not selected mistake to be sent out as the signal First signal receiving point of exit point, the most preceding positive test point that not selected mistake in point set is tested in front are launched as the signal The secondary signal receiving point of point, threeth signal receiving point of the most end front test point as the test point, until the front is surveyed Front test point selection in pilot set finishes, and obtains the first signal launch point survey corresponding with three signal receiving points Examination group.
Specifically, test from the negative in point set and choose unselected most end reverse side test point, is i.e. reverse side test point set First signal receiving point of the unselected test point of abscissa maximum as signal launch point in conjunction, point set is tested from front Unselected most preceding positive test point is chosen in conjunction, i.e., the unselected test of abscissa minimum in front test point set Secondary signal receiving point of the point as signal launch point, chooses unselected most end front test point, i.e. front test point set Threeth signal receiving point of the unselected test point of abscissa maximum as signal launch point in conjunction.
Step S407:Judge whether positive test point is assigned.
Step S408:When the positive test point that front is tested in point set is assigned, any one front is tested Point is used as secondary signal launch point.
Step S409:Test from the negative in point set successively and select the most preceding reverse side test point of not selected mistake as the 4th letter Number receiving point, most end reverse side test point is as the 5th signal receiving point, until the reverse side test point is assigned, obtains described The test corresponding with two signal receiving points of secondary signal launch point is combined.
Specifically, test from the negative in point set and choose unselected most preceding reverse side test point, is i.e. reverse side test point set Fourth signal receiving point of the unselected test point of abscissa minimum as signal launch point, tests point set from the negative in conjunction Unselected most end reverse side test point is chosen in conjunction, i.e., the unselected test of abscissa maximum in reverse side test point set Fiveth signal receiving point of the point as signal launch point.
Step S410:Judge whether the unassigned positive test point in front test point set is one remaining.
Step S411:Using the front test point as the 6th signal receiving point, secondary signal launch point and a letter are obtained The corresponding test combination of number receiving point.
Specifically, when the quantity of positive test point is odd number, since two unselected fronts are chosen in test every time Test point is tested, therefore, finally only can remaining one positive test point be allocated, thus form a signal transmitting The situation of the corresponding signal receiving point of point, i.e. one, front signal launch point correspond to a positive signal receiving point and reverse side one A signal receiving point.
Above-mentioned flying probe measuring point distribution method, connects in printed circuit board (PCB) obverse and reverse setting signal launch point and signal Sink, passes through the renewal successively of signal receiving point so that printed circuit board (PCB) whole test point is assigned, and forms substantial amounts of one The combination of a three receiving points of launch point and two receiving points of launch point of part one and an a small amount of launch point one connect Four probes, the launch point two of part one has been applied in combination in the combination of sink, substantial amounts of three receiving points of a launch point Three probes have been applied in combination in receiving point, and a small amount of one receiving point of a launch point has been applied in combination two probes, more It make use of four probes of flying probe tester in the case of number, improve the utilization rate of flying probe middle probe and then improve flying needle The testing efficiency of test, saves the time.
Fig. 5 is the flying probe test point distributor schematic diagram of the printed circuit board (PCB) of an embodiment.As shown in figure 5, this Invention provides a kind of flying probe test point distributor of printed circuit board (PCB), including:
Gather acquisition device 10:For obtaining the front of printed circuit board (PCB) and the test point quantity information of reverse side, obtain just Point set and reverse side test point set are tested in face.
First launch point selecting device 20:For being surveyed when the quantity of positive test point in front test point set less than reverse side In pilot set during the quantity of reverse side test point, any one positive test point that front is tested in point set is believed as first Number launch point.
First receiving point selecting device 30:The front of not selected mistake is selected to survey for being tested successively from front in point set For pilot as the corresponding first signal receiving point of the first signal launch point, reverse side tests appointing for the not selected mistake in point set Anticipate at 2 points respectively as the corresponding secondary signal receiving point of the first signal launch point and the 3rd signal receiving point, until reverse side is surveyed Reverse side test point selection in pilot set finishes, and obtains the first signal launch point test group corresponding with three signal receiving points Close.
Second launch point selecting device 40:, will when reverse side test point for being tested when reverse side in point set is assigned Any one reverse side test point is as secondary signal launch point.
Secondary destination selecting device 50:Tested successively from front in point set and selecting any two of not selected mistake just Face test point, until positive test point is assigned, obtains the second letter as the 4th signal receiving point and the 5th signal receiving point The test corresponding with two signal receiving points of number launch point is combined.
Fig. 6 is the flying probe test point distributor schematic diagram of the printed circuit board (PCB) of another embodiment.As shown in fig. 6, In one embodiment, above device includes:
Information acquisition device 61:For obtaining printed circuit board (PCB) front test point information and reverse side test point information.
Front collating unit 62:For each positive test point to be arranged by the first order of abscissa, positive test is obtained Point set.
Reverse side collating unit 63:For each reverse side test point to be arranged by the first order of abscissa, reverse side test is obtained Point set.
First judgment means 64:Whether the quantity for judging positive test point is less than the quantity of reverse side test point.
First launch point selecting device 65:For being surveyed when the quantity of positive test point in front test point set less than reverse side In pilot set during the quantity of reverse side test point, any one positive test point that front is tested in point set is believed as first Number launch point.
First receiving point selecting device 66:The front of not selected mistake is selected to survey for being tested successively from front in point set For pilot as the corresponding first signal receiving point of the first signal launch point, reverse side tests appointing for the not selected mistake in point set Anticipate at 2 points respectively as the corresponding secondary signal receiving point of the first signal launch point and the 3rd signal receiving point, until reverse side is surveyed Reverse side test point selection in pilot set finishes, and obtains the first signal launch point test group corresponding with three signal receiving points Close.
Second judgment means 67:For judging whether reverse side test point is assigned.
Second launch point selecting device 68:, will when reverse side test point for being tested when reverse side in point set is assigned Any one reverse side test point is as secondary signal launch point.
Secondary destination selecting device 69:Tested successively from front in point set and selecting any two of not selected mistake just Face test point, until positive test point is assigned, obtains the second letter as the 4th signal receiving point and the 5th signal receiving point The test corresponding with two signal receiving points of number launch point is combined.
3rd judgment means 70:For judging whether the unassigned reverse side test point in reverse side test point set is remaining One.
3rd receiving point selecting device 71:For using the reverse side test point as the 6th signal receiving point, obtaining the second letter The test corresponding with a signal receiving point of number launch point is combined.
Fig. 7 is the flying probe test point distributor schematic diagram of the printed circuit board (PCB) of another embodiment.As shown in fig. 7, In one embodiment, the measuring point distributor of printed circuit board (PCB) further includes:
4th launch point selecting device 60:For being surveyed when the quantity of positive test point in front test point set more than reverse side In pilot set during the quantity of reverse side test point, any one reverse side test point that reverse side is tested in point set is believed as first Number launch point;
4th receiving point selecting device 70:The reverse side of not selected mistake is selected to survey for testing from the negative in point set successively For pilot as the corresponding first signal receiving point of the first signal launch point, appointing for the not selected mistake in point set, is tested in front Anticipate at 2 points respectively as the corresponding secondary signal receiving point of the first signal launch point and the 3rd signal receiving point, until front is surveyed Front test point selection in pilot set finishes, and obtains the first signal launch point test group corresponding with three signal receiving points Close;
5th launch point selecting device 80:, will when positive test point for being tested when front in point set is assigned Any one positive test point is as secondary signal launch point;
5th receiving point selecting device 90:Any the two of not selected mistake is selected for testing from the negative in point set successively A reverse side test point is as the 4th signal receiving point and the 5th signal receiving point, until reverse side test point is assigned, obtains the The test corresponding with two signal receiving points of binary signal launch point is combined.
A kind of computer equipment, the computer equipment include memory, processor and storage on a memory and can locate The computer program run on reason device, wherein, processor realizes the survey of printed circuit board (PCB) described above when performing computer program The step of pilot distribution method.
A kind of storage medium, is stored thereon with computer program, wherein, realized when which is executed by processor as above-mentioned Printed circuit board (PCB) test point distribution method the step of.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, its description is more specific and detailed, but simultaneously Cannot therefore it be construed as limiting the scope of the patent.It should be pointed out that come for those of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

  1. A kind of 1. test point distribution method of printed circuit board (PCB), it is characterised in that including:
    The test point information of printed circuit board (PCB) front and reverse side is obtained, obtains front test point set and reverse side test point set;
    When the quantity that positive test point in point set is tested in front is less than the quantity of reverse side test point in reverse side test point set, Using any one positive test point in front test point set as the first signal launch point;
    Being tested successively from front in point set selects the positive test point of not selected mistake to be corresponded to as the first signal launch point The first signal receiving point, reverse side test point set in not selected mistake any two points respectively as first signal launch The corresponding secondary signal receiving point of point and the 3rd signal receiving point, until the reverse side test in reverse side test point set clicks Select and finish, obtain the first signal launch point test corresponding with three signal receiving points and combine;
    When the reverse side test point that reverse side is tested in point set is assigned, using any one reverse side test point as secondary signal Launch point;
    Being tested successively from front in point set selects any two front test point of not selected mistake to be received as the 4th signal Point and the 5th signal receiving point, until the positive test point is assigned, obtain the secondary signal launch point and two letters The corresponding test combination of number receiving point.
  2. 2. the according to the method described in claim 1, it is characterized in that, test point for obtaining printed circuit board (PCB) front and reverse side Information, obtains the step of point set and reverse side test point set are tested in front, including:
    Obtain printed circuit board (PCB) front test point information and reverse side test point information;
    Each positive test point is arranged by the first order of abscissa, obtains front test point set;
    Each reverse side test point is arranged by the first order of abscissa, obtains reverse side test point set;
    Described tested successively from front in point set selects the positive test point of not selected mistake to be corresponded to as the signal launch point The first signal receiving point, reverse side test point set in not selected mistake any two points respectively as the signal launch point pair The step of secondary signal receiving point answered and the 3rd signal receiving point, including:
    Selected from the front test point set most end front test point of not selected mistake as the signal launch point the One signal receiving point, reverse side test second of the most preceding reverse side test point of not selected mistake in point set as the signal launch point Signal receiving point, threeth signal receiving point of the most end reverse side test point as the test point;
    Described tested successively from front in point set selects any two front test point of not selected mistake as the 4th signal The step of receiving point and the 5th signal receiving point, including:Successively from front test point set in select not selected mistake most it is preceding just Face test point is as the 4th signal receiving point, and most end front test point is as the 5th signal receiving point.
  3. 3. according to the method described in claim 1, it is characterized in that, the method further includes:
    When the unassigned reverse side test point that reverse side is tested in point set is one remaining, using the reverse side test point as the 6th Signal receiving point, obtains secondary signal launch point test corresponding with a signal receiving point and combines.
  4. 4. according to the method described in claim 1, it is characterized in that, the method further includes:
    When the quantity that positive test point in point set is tested in front is more than the quantity of reverse side test point in reverse side test point set, Using any one reverse side test point in reverse side test point set as the first signal launch point;
    Testing from the negative in point set successively selects the reverse side test point of not selected mistake to be corresponded to as the first signal launch point The first signal receiving point, front test point set in not selected mistake any two points respectively as first signal launch The corresponding secondary signal receiving point of point and the 3rd signal receiving point, until the front test that the front is tested in point set clicks Select and finish, obtain the first signal launch point test corresponding with three signal receiving points and combine;
    When the positive test point that front is tested in point set is assigned, using any one positive test point as secondary signal Launch point;
    Testing from the negative in point set successively selects any two reverse side test point of not selected mistake to be received as the 4th signal Point and the 5th signal receiving point, until the reverse side test point is assigned, obtain the secondary signal launch point and two letters The corresponding test combination of number receiving point.
  5. 5. according to the method described in claim 4, it is characterized in that, the method further includes:
    Described test from the negative in point set successively selects the reverse side test point of not selected mistake as the first signal launch point Any two points of the not selected mistake in point set are tested respectively as first signal in corresponding first signal receiving point, front The step of corresponding secondary signal receiving point of launch point and the 3rd signal receiving point, including:
    Select the most end reverse side test point of not selected mistake as the signal launch point the is tested in point set from the reverse side Second of the most preceding positive test point of not selected mistake in point set as the signal launch point is tested in one signal receiving point, front Signal receiving point, threeth signal receiving point of the most end front test point as the test point;
    Described test from the negative in point set successively selects any two reverse side test point of not selected mistake as the 4th signal The step of receiving point and the 5th signal receiving point, including:Test from the negative in point set successively and select not selected mistake most preceding anti- Face test point is as the 4th signal receiving point, and most end reverse side test point is as the 5th signal receiving point.
  6. 6. according to the method described in claim 4, it is characterized in that, the method further includes:
    When the unassigned positive test point that front is tested in point set is one remaining, using the front test point as the 6th Signal receiving point, obtains secondary signal launch point test corresponding with a signal receiving point and combines.
  7. A kind of 7. flying probe test point distributor of printed circuit board (PCB), it is characterised in that including:
    Gather acquisition device:For obtaining the front of printing board PCB and the test point quantity information of reverse side, positive survey is obtained Pilot set and reverse side test point set;
    First launch point selecting device:For being less than reverse side test point set when the quantity of positive test point in front test point set In conjunction during the quantity of reverse side test point, any one positive test point that front is tested in point set is launched as the first signal Point;
    Secondary destination selecting device:The positive test point of not selected mistake is selected to make for being tested successively from front in point set For the corresponding first signal receiving point of the first signal launch point, reverse side tests any two points of the not selected mistake in point set Respectively as the corresponding secondary signal receiving point of the first signal launch point and the 3rd signal receiving point, until the reverse side is tested Reverse side test point selection in point set finishes, and obtains the first signal launch point test corresponding with three signal receiving points Combination;
    Second launch point selecting device:, will be any one when reverse side test point for being tested when reverse side in point set is assigned A reverse side test point is as secondary signal launch point;
    Secondary destination selecting device:Any two front test that selects not selected mistake is tested in point set from front successively Point is used as the 4th signal receiving point and the 5th signal receiving point, until the positive test point is assigned, obtains described second The test corresponding with two signal receiving points of signal launch point is combined.
  8. 8. device according to claim 7, it is characterised in that described device further includes:
    Second launch point selecting device:For being more than reverse side test point set when the quantity of positive test point in front test point set In conjunction during the quantity of reverse side test point, any one reverse side test point that reverse side is tested in point set is launched as the first signal Point;
    3rd receiving point selecting device:The reverse side test point of not selected mistake is selected to make for testing from the negative in point set successively For the corresponding first signal receiving point of the first signal launch point, any two points of the not selected mistake in point set are tested in front Respectively as the corresponding secondary signal receiving point of the first signal launch point and the 3rd signal receiving point, until the front is tested Front test point selection in point set finishes, and obtains the first signal launch point test corresponding with three signal receiving points Combination;
    3rd launch point selecting device:, will be any one when positive test point for being tested when front in point set is assigned A front test point is as secondary signal launch point;
    3rd receiving point selecting device:Any two reverse side of not selected mistake is selected for testing from the negative in point set successively Test point is as the 4th signal receiving point and the 5th signal receiving point, until the reverse side test point is assigned, obtains described The test corresponding with two signal receiving points of secondary signal launch point is combined.
  9. 9. a kind of computer equipment, which includes memory, processor and storage on a memory and can handle The computer program run on device, wherein, processor is realized such as any one of claim 1 to 6 when performing the computer program The step of test point distribution method of the printed circuit board (PCB).
  10. 10. a kind of storage medium, is stored thereon with computer program, wherein, such as right is realized when which is executed by processor It is required that the step of test point distribution method of 1 to 6 any one of them printed circuit board (PCB).
CN201711492282.1A 2017-12-30 2017-12-30 The test point distribution method and device of printed circuit board (PCB) Withdrawn CN107942238A (en)

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Application Number Priority Date Filing Date Title
CN201711492282.1A CN107942238A (en) 2017-12-30 2017-12-30 The test point distribution method and device of printed circuit board (PCB)

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CN105785257A (en) * 2016-04-13 2016-07-20 大族激光科技产业集团股份有限公司 Flying needle test machine correction method
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CN101424723A (en) * 2008-12-12 2009-05-06 四川长虹电器股份有限公司 Optimizing method based on four-needle flying-needle test path
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