CN109946590A - A kind of board interconnecting device and test macro - Google Patents
A kind of board interconnecting device and test macro Download PDFInfo
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- CN109946590A CN109946590A CN201910291428.9A CN201910291428A CN109946590A CN 109946590 A CN109946590 A CN 109946590A CN 201910291428 A CN201910291428 A CN 201910291428A CN 109946590 A CN109946590 A CN 109946590A
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Abstract
The invention discloses a kind of board interconnecting device, which includes: the first pinboard, the second pinboard and intermediate conveyor unit；Wherein, the first pinboard has and the matched golden finger of board, and the first connector being connected with the connecting line of golden finger；Second pinboard has and the matched slot of golden finger, and the second connector being connected with the connecting line of slot；First connector matches with the second connector, and the first connector is connected with the second connector by intermediate conveyor unit.The board interconnecting device can also draw whole signals at board golden finger end, facilitate test while the transmission of the power supply signal and data-signal of realizing mainboard and board.Therefore, the characteristics of which has structure simple, portable and fractionation is conducive to exploitation debugging, exploitation debugging and the maintenance efficiency of board further can be improved.The invention also discloses a kind of test macros, have corresponding technical effect.
Description
Technical field
The present invention relates to technical field of memory, more particularly to a kind of board interconnecting device and test macro.
Background technique
Board is a kind of printed circuit board, abbreviation pcb board, and when production has lock pin, and the main circuit of computer can be inserted
In the slot of plate (mainboard), for controlling the equipment such as the operation of hardware, such as display, capture card, sound card, network interface card, installation is driven
After dynamic program, corresponding hardware capability can be realized, and after board failure, board extraction can be damaged, reinserted
Normal board, so that computer can work on.
But in exploitation or detection-phase, the direct insertion connection type of board is brought to hardware and software debugging and problem investigation
Certain trouble.For example, under electric power thus supplied, when board is inserted in equipment end, to board programming program and firmware, Yi Jipai
It looks into the processes such as hardware-related signal testing and all encounters a degree of obstruction, exploitation test speed is caused to take a long time.Tool
Body, in signal testing, when testing the voltage of board, the mode of direct insertion connection causes to be difficult to detect board
Voltage value；It when testing board signal, is difficult to operate the probe of oscillograph in opposite narrow space, keeps it accurate
Position think test point to be tested.
It is current art technology the problems such as board signal testing in conclusion how to efficiently solve in development process
Personnel's technical problem urgently to be solved.
Summary of the invention
The object of the present invention is to provide a kind of board interconnecting device and test macros, and board signal testing efficiency can be improved,
Further increase exploitation or detection speed.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of board interconnecting device, comprising:
First pinboard, the second pinboard and intermediate conveyor unit；Wherein, first pinboard has and matches with board
Golden finger, and the first connector being connected with the connecting line of the golden finger；Second pinboard have with it is described
The matched slot of golden finger, and the second connector being connected with the connecting line of the slot；First connector and institute
It states the second connector to match, and first connector is connected with second connector by the intermediate conveyor unit
It connects.
Preferably, the board is PCIe board.
Preferably, first connector and second connector are FPC connector, correspondingly, the intermediate biography
Defeated unit is FPC flexible circuit board.
Preferably, the FPC connector be include that two-sided FPC connector, vertical FPC connector are connected with surface-mount type FPC
Any one in device.
Preferably, the FPC flexible circuit board includes signals layer, bus plane and ground plane, and the ground plane is located at
Between the signals layer and the bus plane.
Preferably, first connector and second connector are FFC connector, correspondingly, the intermediate biography
Defeated unit is the FFC cable for being used for transmission high speed signal.
Preferably, first connector and second connector are Oculink connector, first pinboard
With the first power interface, second pinboard have with the matched second source interface of first power interface, accordingly
Ground, the intermediate conveyor unit include Oculink high-speed transmission line and power transmission line.
Preferably, there is test point and/or test lead on the connecting line of the slot.
A kind of test macro, comprising:
Control host, board, test equipment and such as above-mentioned board interconnecting device, the golden finger of the board interconnecting device
It is inserted into the slot of the control equipment, the golden finger of the board is inserted into the slot of the board interconnecting device；The tester
The test probe of device detects the board interconnecting device or the board.
Preferably, the test equipment is hardware testing equipment, and the hardware testing equipment includes multimeter and oscillograph.
Using equipment provided by the embodiment of the present invention, which includes: the first pinboard, the second pinboard and intermediate biography
Defeated unit；Wherein, the first pinboard have with the matched golden finger of board, and be connected with the connecting line of golden finger first
Connector；Second pinboard has and the matched slot of golden finger, and the second connector being connected with the connecting line of slot；
First connector matches with the second connector, and the first connector is connected with the second connector by intermediate conveyor unit.
First pinboard of the board interconnecting device have with the matched golden finger of board, can be by board interconnecting device
First pinboard is inserted on such as server, computer and the mainboard of storage equipment and the matched slot of golden finger on board
In；Correspondingly, on the second pinboard of board interconnecting device, have with the matched slot of board golden finger, thus can be by plate
Card insertion enters the second pinboard of board interconnecting device.In addition, the first pinboard and the second pinboard are further through intermediate conveyor unit
It is connected, so the direct insertion connection between board and mainboard can be converted to being indirectly connected with by board interconnecting device.
The board interconnecting device can also draw board while the transmission of the power supply signal and data-signal of realizing mainboard and board
Whole signals at golden finger end, facilitate test.Therefore, which has structure simple, portable and fractionation spy
Point is conducive to exploitation debugging, exploitation debugging and the maintenance efficiency of board further can be improved.
Correspondingly, the embodiment of the invention also provides test macros corresponding with above-mentioned board interconnecting device, have upper
Technical effect is stated, details are not described herein.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of board interconnecting device in the embodiment of the present invention；
Fig. 2 is that one of embodiment of the present invention is shown using the specific connection structure of the board conversion equipment of FPC connector
It is intended to；
Fig. 3 is that one of embodiment of the present invention is shown using the specific connection structure of the board conversion equipment of FFC connector
It is intended to；
Fig. 4 is specific connection knot of one of the embodiment of the present invention using the board conversion equipment of Oculink connector
Structure schematic diagram；
Fig. 5 is a kind of concrete structure schematic diagram of second connecting plate in the embodiment of the present invention；
Fig. 6 is a kind of concrete structure diagram of the board interconnecting device of PCIe SSD board card in the embodiment of the present invention；
Fig. 7 is the concrete structure diagram of the board interconnecting device of another kind PCIe SSD board card in the embodiment of the present invention；
Fig. 8 is a kind of structural schematic diagram of test macro in the embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment one:
It should be noted that for ease of description, first and second descriptor is used in embodiments of the present invention,
In the application pinboard and in connector titled with first and second, be respectively provided with different meanings.Specifically, will be in pinboard
Preceding to be only used for distinguishing different pinboards titled with first, second, such as the first pinboard refers to the pinboard with golden finger, second
Pinboard refers to the pinboard with slot；And titled with first and second before connector, it is only used for difference connector and two turns
The corresponding relationship of fishplate bar, specifically, i.e. the first connector is on the first pinboard, the second connector is on the second pinboard.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of board interconnecting device in the embodiment of the present invention, wherein 100 are
First pinboard, 101 be the first connector, and 102 be golden finger, 103 to the 10n connection between golden finger and the first adapter
Line, 200 be intermediate conveyor unit, and 300 be the second pinboard, and 301 be the second connector, and 302 be slot, and 303 to 30n be slot
With the connecting line between the second connector, wherein the pin number of signals of board is consistent with the number of signals of pinboard, and one is a pair of
It answers, i.e. n needs to be consistent with the pin quantity of board after subtracting 2.For example, the number of signals of PCIe board golden finger end interface,
The number of signals at FFC connector pin number and the end FPC is corresponded in design and signal definition, can be to slotting or direct-connected.
The board interconnecting device includes: the first pinboard, the second pinboard and intermediate conveyor unit；Wherein, the first switching
Plate has and the matched golden finger of board, and the first connector being connected with the connecting line of golden finger；Second pinboard tool
Have and the matched slot of golden finger, and the second connector being connected with the connecting line of slot；First connector and second connects
It connects device to match, and the first connector is connected with the second connector by intermediate conveyor unit.
In embodiments of the present invention, in order to realize data-signal between the first pinboard and the second pinboard or power supply letter
Number transmission, the second connector on the first connector and the second pinboard on the first pinboard need to be using being capable of data-signal
The connector of intercommunication.Preferably, identical connector can be used directly in the connector on two pinboards.Correspondingly, intermediate
Transmission unit need to be using the cable or flexible connection equipment that can be connected to two connectors, such as FPC flexible circuit board.
Currently, board is broadly divided into four classes, it is respectively as follows: isa bus board, eisa bus board, pci bus board, AGP
Bus board.For ease of description, the embodiment of the present invention is provided by taking the PCIe board in pci bus board as an example below
Board interconnecting device be described in detail, the specific structure of the board interconnecting device of other types board can be cross-referenced,
This is no longer repeated one by one.
Suitable for the board interconnecting device of PCEe board, the connector on two boards in board interconnecting device be can be selected
FPC connector, FFC connector and Oculink connector, correspondingly, intermediate conveyor unit then with the connector of selection carry out
Match.Separately below by taking different connectors as an example, it is provided for the embodiments of the invention board interconnecting device and carries out in detail
Description:
Referring to FIG. 2, Fig. 2 is the specific of the board conversion equipment that one of embodiment of the present invention uses FPC connector
Attachment structure schematic diagram.That is, the first connector and the second connector are FPC connector, correspondingly, intermediate conveyor unit is
FPC flexible circuit board.Wherein, FPC connector be include two-sided FPC connector, vertical FPC connector and surface-mount type FPC
Any one in connector.Preferably, FPC flexible circuit board includes signals layer, bus plane and ground plane, ground plane position
Between signals layer and bus plane.Specifically, the FPC flexible hard circuit board can be also 4 layers of PCB construction, such as bottom and bottom
For signals layer and bus plane, two layers of intermediate quantity is ground plane, is high speed signal by ground level, guarantees the integrality of signal.
Light-weight, thickness is thin, bending the is good advantage that this way of realization has using FPC flexible circuit board, are walked in PCIe
In the range of line length requires, the length of the FPC flexible circuit board is customizable flexible, and has than general high speed connecting line
There are better shielding line and signal integrity.Thus, which can also have better ductility and and reduce
Signal distortion.
Referring to FIG. 3, Fig. 3 is the specific of the board conversion equipment that one of embodiment of the present invention uses FFC connector
Attachment structure schematic diagram.First connector and the second connector are FFC connector, correspondingly, intermediate conveyor unit be for
Transmit the FFC cable of high speed signal.Wherein high speed signal such as PCIe signal.It includes but is not limited to following normal that FFC cable, which can be selected,
With any one in type:
A type: both ends connect and stiffening plate is pasted on insulation gummed paper；
Type B: stiffening plate intersection is affixed directly on insulation gummed paper；
C-type: both ends stiffening plate is affixed directly on conductor；
D type: stiffening plate intersection in both ends is affixed directly on conductor；
E type: one end stiffening plate is attached on insulation gummed paper, the direct scolding tin of the other end；
F type: both ends stiffening plate is placed directly against on insulation gummed paper, and inside one is half peeled；
G type: the direct scolding tin in both ends.
Since FFC cable has the Optimalities such as small in size, precision is high, easy to use, lighting, ultrathin type, resistance to complications
Can, thus the board conversion equipment for using FFC cable and FFC adapter similarly has that small in size, precision is high, user
Just, the excellent performances such as lighting, ultrathin type, resistance to complications.
Referring to FIG. 4, Fig. 4 is board conversion equipment of one of the embodiment of the present invention using Oculink connector
Specific attachment structure schematic diagram.First connector and the second connector are Oculink connector, and the first pinboard has first
Power interface, the second pinboard have and the matched second source interface of the first power interface, correspondingly, intermediate conveyor unit packet
Include Oculink high-speed transmission line and power transmission line.Since Oculink connector can not transmit power supply signal, according to
Oculink connector then need to also be arranged corresponding power interface on change-over panel and intermediate conveyor unit is also arranged accordingly
Power transmission line.In addition, the power interface on change-over panel also needs the connecting line of golden finger corresponding on change-over panel or slot
It is connected, to ensure that the connection of board conversion equipment can be realized the signaling transfer point between board and mainboard.Correspondingly, according to
When other similar Oculink connector does not have the connector of power delivery function, this example can refer to.
Using board interconnecting device provided by the embodiment of the present invention, which includes: the first pinboard, the second pinboard
With intermediate conveyor unit；Wherein, the first pinboard have with the matched golden finger of board, and be connected with the connecting line of golden finger
The first connector connect；Second pinboard have with the matched slot of golden finger, and be connected with the connecting line of slot the
Two connectors；First connector matches with the second connector, and the first connector and the second connector pass through intermediate conveyor list
Member is connected.
First pinboard of the board interconnecting device have with the matched golden finger of board, can be by board interconnecting device
First pinboard is inserted on such as server, computer and the mainboard of storage equipment and the matched slot of golden finger on board
In；Correspondingly, on the second pinboard of board interconnecting device, have with the matched slot of board golden finger, thus can be by plate
Card insertion enters the second pinboard of board interconnecting device.In addition, the first pinboard and the second pinboard are further through intermediate conveyor unit
It is connected, so the direct insertion connection between board and mainboard can be converted to being indirectly connected with by board interconnecting device.
The board interconnecting device can also draw board while the transmission of the power supply signal and data-signal of realizing mainboard and board
Whole signals at golden finger end, facilitate test.Therefore, which has structure simple, portable and fractionation spy
Point is conducive to exploitation debugging, exploitation debugging and the maintenance efficiency of board further can be improved.
It should be noted that based on the above embodiment, the embodiment of the invention also provides be correspondingly improved scheme.Excellent
It can mutually be referred between step or corresponding steps same with the above-mentioned embodiment involved in choosing/improvement embodiment, it is corresponding beneficial
Effect can also be cross-referenced, no longer repeats one by one in preferred/improvement embodiment of this paper.
Preferably, for the ease of testing, there is test point and/or test lead on the connecting line of slot.Specifically, please join
Fig. 5 is examined, Fig. 5 is a kind of concrete structure schematic diagram of second connecting plate in the embodiment of the present invention.It can be inserted on the second connecting plate
Test point is set in the connection of slot, or is directly connected to out test lead, can have test point and test lead simultaneously certainly.Such as
This, test equipment then can be by the test point or test lead, and conveniently and efficiently the signal of test board, can be improved signal testing
Efficiency.
Embodiment two:
Board interconnecting device provided by the embodiment of the present invention is more fully understood for the ease of those skilled in the art, below
For specific application scenarios, it is provided for the embodiments of the invention board interconnecting device and is described in detail.
Compared to the SSD of SATA, two kinds of hardware interfaces of SAS, since the SSD of PCIe interface type has rate fast, bandwidth
High high performance nature, and with constantly universal and software ecology the foundation of NVMe standard, undeniably, PCIe SSD exists
Share in market is increasing.A kind of common hardware interface form of the AIC interface as PCIe SSD disk, due to service
The PCIe slot interface of the equipment such as device, storage is compatible, and supports hot plug, in practical applications frequently as activation system disk
To use.But in preliminary project development phase, this kind of PCIe SSD direct insertion connection type is to hardware and software debugging and problem
Investigation brings certain trouble.Such as under electric power thus supplied, when AIC PCIe SSD mainboard is inserted in equipment end, in programming PCIe
Firmware and program on SSD mainboard check hardware-related signal testing etc. and all encounter a degree of obstruction, Er Qieyou
When it is inconvenient.Therefore, in development phase early period, the debugging of AIC SSD product how is realized, improving product development debugging efficiency is
Put the main problem in AIC PCIe SSD.
Using board interconnecting device provided by above-described embodiment one, this can be solved the problems, such as.It is specific in order to more illustrate
Solution process, corresponding function description is carried out by taking AIC PCIe x4SSD as an example below, certainly following implementation pattern, equally
Suitable for PCIe x8, the difference SSD board card of channel type such as PCIex16 or the PCIe board of other function type.
Fig. 6 and Fig. 7 are please referred to, Fig. 6 is a kind of tool of the board interconnecting device of PCIe SSD board card in the embodiment of the present invention
Body structure chart, Fig. 7 are the concrete structure diagram of the board interconnecting device of another kind PCIe SSD board card in the embodiment of the present invention.The plate
Card interconnecting device is mainly transferred high speed connector interface board (with the first pinboard) by PCIe x4 golden finger, intermediate conversion unit,
The three parts compositions such as high speed connector interface PCIe x4 connector interface board (with the second pinboard), two pieces of switchings
Intermediate conversion unit between plate can be connected by FPC or high-speed transfer cable, and the power supply for transmitting SSD PCIe is believed
Number and data-signal.Specific structure is as follows:
PCIe x4 golden finger switching high speed connector interface board: the interface board is plugged into server apparatus by golden finger
PCIe x4 connector plugging slot in, then 32 pairs of PCIe signals of the golden finger are connected in high speed connector on pinboard.
For example, the connector can be used, 64pin-0.5mm spacing is two-sided or vertical or surface-mount type FPC connector, it is contemplated that PCIe
3.0/4.0 Bus Speed should be noted the signal frequency of the connector supported in 8Gbps, 16Gbps or so；Except above-mentioned FPC
Outside connector, it is also an option that other kinds of high speed connector, such as Oculink connector.
Intermediate conveyor unit: the part can choose FPC or high-speed transfer cable.For example, FPC is set using 4 layers of PCB
Meter, top layer and bottom walk signal wire and power supply line respectively, and intermediate two layers is ground level, provide the Horizon of completion for high speed signal
Face guarantees the integrality of signal.Light-weight, thickness is thin, bending the is good advantage that this kind of way of realization has using FPC,
In the range of PCIe track lengths require, the FPC length is customizable flexible, and has preferably screen than general high speed connecting line
Cover line and signal integrity.
Furthermore in addition to above-mentioned FPC implementation, it is also an option that other high-speed transfer cables, for example, Oculink line transmits
PCIe high-speed data signal, power unit are transmitted using independent power interface.
High speed connector interface PCIe x4 connector interface board: the high speed signal that the interface board will receive
It converts with power supply signal to PCIe x4 connector.Explanation as exemplified above, the high speed connector can choose FFC high speed
Connector or Oculink high speed connector.
When user is carrying out hardware and software debugging or test to AIC PCIe SSD mainboard outside the equipment ends such as server
When, above-mentioned three kinds of equipment is assembled to get complete board interconnecting device, PCIe x4 golden finger switching high speed connector is arrived
Golden finger end in interface board is plugged into the PCIe x4 slot of equipment end, and high speed connector interface PCIe x4 slot connects
Connect the PCIe x4 slot docking AIC PCIe SSD disk of device interface board.Since two pieces of pinboards of the board interconnecting device occupy
Small in size, whole signals that PCIe SSD golden finger end may be implemented are drawn, and facilitate test.Therefore, which succinctly facilitates, easily
It carries and splits, conducive to being used in exploitation debugging, to improve exploitation debugging and the maintenance efficiency of AIC PCIe SSD.To,
In the development phase of SSD product, software and hardware personnel can complete software upgrading and hardware signal positioning problems at faster speed
Test.
Embodiment three:
Corresponding to apparatus embodiments above, the embodiment of the invention also provides a kind of test macro, plate described below
Card interconnecting device system can correspond to each other reference with above-described board interconnecting device.
Shown in Figure 8, Fig. 8 is a kind of structural schematic diagram of test macro in the embodiment of the present invention, wherein 501 be control
Host processed, 502 be a kind of board interconnecting device provided by the embodiment of the present invention, and 503 be test equipment, and 504 be board.This is
System includes:
Host, board, test equipment and such as above-mentioned board interconnecting device are controlled, the golden finger of board interconnecting device is inserted into
Control the slot of equipment, the slot of the golden finger insertion board interconnecting device of board；The test probe of test equipment detects board
Interconnecting device or board.
Wherein, test equipment is hardware testing equipment, and the hardware testing equipment includes multimeter and oscillograph.
Using system provided by the embodiment of the present invention, turn as using the board as described in above-mentioned apparatus embodiments
Exchange device, thus the system equally has the advantages that board conversion equipment.First pinboard of board interconnecting device can be inserted into
On the mainboard of such as server, computer and storage control host and in the matched slot of golden finger on board；Correspondingly, exist
On second pinboard of board interconnecting device, have with the matched slot of board golden finger, thus can by board be inserted into board turn
Connect the second pinboard of equipment.In addition, the first pinboard is connected with the second pinboard further through intermediate conveyor unit, so just
Direct insertion connection between board and mainboard can be converted to being indirectly connected with by board interconnecting device.Board switching is set
For while the transmission of the power supply signal and data-signal of realizing mainboard and board, the complete of board golden finger end can also be drawn
Portion's signal facilitates test.Therefore, the characteristics of which has structure simple, portable and fractionation, is conducive to develop
Debugging, and then exploitation debugging and the maintenance efficiency of board can be improved.
It should be noted that including a plurality of line in intermediate conveyor unit between connector in attached drawing of the invention
Road equally has a plurality of route between golden finger and connector, include a plurality of route between slot and connector.In part attached drawing
In in order to beauty consider, all lines are not drawn out all, do not represent no respective lines.
Claims (10)
1. a kind of board interconnecting device characterized by comprising
First pinboard, the second pinboard and intermediate conveyor unit；Wherein, first pinboard has and the matched gold of board
Finger, and the first connector being connected with the connecting line of the golden finger；Second pinboard has and the golden hand
Refer to matched slot, and the second connector being connected with the connecting line of the slot；First connector and described the
Two connectors match, and first connector is connected with second connector by the intermediate conveyor unit.
2. board interconnecting device according to claim 1, which is characterized in that the board is PCIe board.
3. board interconnecting device according to claim 2, which is characterized in that first connector and second connection
Device is FPC connector, and correspondingly, the intermediate conveyor unit is FPC flexible circuit board.
4. board interconnecting device according to claim 3, which is characterized in that the FPC connector be include that two-sided FPC connects
Connect any one in device, vertical FPC connector and surface-mount type FPC connector.
5. board interconnecting device according to claim 3, which is characterized in that the FPC flexible circuit board includes letter
Number floor, bus plane and ground plane, the ground plane is between the signals layer and the bus plane.
6. board interconnecting device according to claim 2, which is characterized in that first connector and second connection
Device is FFC connector, and correspondingly, the intermediate conveyor unit is the FFC cable for being used for transmission high speed signal.
7. board interconnecting device according to claim 2, which is characterized in that first connector and second connection
Device is Oculink connector, and first pinboard has the first power interface, and second pinboard has and described the
The matched second source interface of one power interface, correspondingly, the intermediate conveyor unit includes Oculink high-speed transmission line and electricity
Source transmission line.
8. board interconnecting device according to any one of claims 1 to 7, which is characterized in that on the connecting line of the slot
With test point and/or test lead.
9. a kind of test macro characterized by comprising
Host, board, test equipment and board interconnecting device as described in any one of claim 1 to 9 are controlled, the board turns
The golden finger for connecing equipment is inserted into the slot of the control equipment, and the golden finger of the board is inserted into inserting for the board interconnecting device
Slot；The test probe of the test equipment detects the board interconnecting device or the board.
10. test macro according to claim 9, which is characterized in that the test equipment is hardware testing equipment, described
Hardware testing equipment includes multimeter and oscillograph.
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| CN201910291428.9A CN109946590A (en) | 2019-04-11 | 2019-04-11 | A kind of board interconnecting device and test macro |
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| CN201910291428.9A CN109946590A (en) | 2019-04-11 | 2019-04-11 | A kind of board interconnecting device and test macro |
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| CN111148343A (en) * | 2020-01-20 | 2020-05-12 | 京东方科技集团股份有限公司 | Flexible circuit board, lighting test system and test method |
| CN111785021A (en) * | 2020-07-02 | 2020-10-16 | 公安部第三研究所 | Device for realizing batch test of highway traffic key equipment and test method thereof |
| CN112380103A (en) * | 2020-11-11 | 2021-02-19 | 深圳市广和通无线股份有限公司 | System log acquisition device, system, method and storage medium |
| CN112711504A (en) * | 2020-12-31 | 2021-04-27 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Test system and test method |
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Application publication date: 20190628 |