CN115396350A - Multifunctional test system based on Ethernet board locking - Google Patents
Multifunctional test system based on Ethernet board locking Download PDFInfo
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- CN115396350A CN115396350A CN202211027996.6A CN202211027996A CN115396350A CN 115396350 A CN115396350 A CN 115396350A CN 202211027996 A CN202211027996 A CN 202211027996A CN 115396350 A CN115396350 A CN 115396350A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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Abstract
The invention provides a multifunctional test system based on Ethernet board card, which has simple interface and low cost, and realizes interconnection of all functional board cards based on mature communication mode of Ethernet. It comprises the following steps: the backplane connector comprises a backplane body, wherein a switch card slot and a plurality of unit card slots are integrated on the backplane body; a power supply module; the exchange card comprises a communication interface end and a communication main port; each test unit board card is provided with a backplane connector interface which adopts standard NXI bus interface definition and structure size, and different test unit board cards are selected for test operation according to different purposes; the power module is used for supplying power to the backplane connector, the switch card and the test unit board card; the exchange card is inserted into the exchange card slot of the backplane connector.
Description
Technical Field
The invention relates to the technical field of test systems, in particular to a multifunctional test system based on Ethernet board formatting.
Background
In the production and manufacturing of 3C digital products, semiconductors, communication and other industries, various test and measurement instruments are required to be used for carrying out quality detection and performance index measurement on the products, wherein a board-card-shaped test system is very widely applied, and the board-card-shaped test design has the characteristics of flexible function cutting, high integration level and simplicity in maintenance.
At present, a board-based test system is constructed based on a PCI-E architecture, and the test system adopts a mode of internally arranging an X86 (computer architecture proposed by Intel) computer board card, and realizes various test and measurement functions by directly expanding a PCI-E (a universal bus interface) communication interface of the X86 architecture and connecting the PCI-E with other various functional board cards.
The PCI-E bus architecture adopts a parallel port communication mode, the number of interconnected communication lines is large, hardware interfaces and protocols are complex, the secondary development users who perform system integration are difficult to find, and the development period is prolonged. Moreover, the hardware cost of the architecture is very high, an X86 computer board card needs to be arranged in the architecture, a set of PCI-E interface circuit is also needed on each function board card, the interface circuit generally needs an FPGA and an interface chip, and the cost is very high.
Therefore, a board-based test system with a simple interface and lower cost is urgently needed.
Disclosure of Invention
Aiming at the problems, the invention provides the multifunctional test system based on the Ethernet board card, which has simple interface and low cost, and realizes the interconnection of all the functional board cards based on a mature communication mode of the Ethernet.
Many functional test system based on ethernet integrated circuit board ization, its characterized in that, it includes:
the backplane connector comprises a backplane body, wherein a switch card slot and a plurality of unit card slots are integrated on the backplane body;
a power supply module;
the switch card comprises a communication interface end and a communication main port;
each test unit board card is provided with a backplane connector interface which adopts standard NXI bus interface definition and structure size, and different test unit board cards are selected for test operation according to different purposes;
the power supply module is used for supplying power to the backplane connector, the switch card and the test unit board card;
the backplane connector is used for connecting data information of each test unit board card to a communication interface end of the exchange card through Ethernet communication, and a communication main port of the exchange card is used for connecting the test data information to an external upper computer through a network.
It is further characterized in that:
the whole test system adopts a 3U standard case framework, the backplane connector, the exchange card and the test unit board card are all arranged in a case, and a temperature acquisition module and a fan heat dissipation module are arranged in the case to ensure that the inside of the whole case is at a normal industrial control temperature;
the test unit board card comprises but is not limited to a voltage measurement card, a data acquisition card, a relay card, a digital input/output card or a matrix card;
the number of the exchange card slots on the backboard body is 16, two special exchange card chips are arranged inside the universal exchange card and are interconnected through a cascade interface of the universal exchange card, and then two 8-path Ethernet transceivers are matched, and each path of Ethernet is respectively connected to the corresponding exchange card slot;
the NXI bus interface definition comprises a group of Ethernet signals, a 12V power supply, 4 paths of bidirectional synchronous trigger signals and a path of differential synchronous clock; the NXI bus interfaces of all the test unit board cards are defined the same, the test unit board cards are communicated with the switch card through the backplane connector, and the switch card is communicated with the upper computer, so that the interactive control of the test unit board cards and the upper computer is realized;
the switching cards are specifically ten-gigabit switching cards and gigabit switching cards, and one of the ten-gigabit switching cards is selected according to the requirement of the data throughput of the test system and the consideration of the cost;
the gigabit exchange card is provided with two gigabit Ethernet ports outwards, the gigabit Ethernet ports are compatible with 10000M/1000M/100M rate downwards and are used for communicating with a PC (personal computer), the gigabit network card internally has 16 gigabit Ethernet ports, the 16 gigabit network cards are respectively connected to 16 corresponding test unit board cards through backplane connectors, and the 16 gigabit network ports are compatible with 1000M/100M/10M rate downwards;
the gigabit switch card is provided with two gigabit Ethernet ports outwards, the gigabit Ethernet ports are compatible with the speed of 1000M/100M downwards and are used for communicating with a PC, the gigabit network card is internally provided with 16 gigabit Ethernet ports, the 16 gigabit Ethernet ports are respectively connected to 16 corresponding test unit board cards through backplane connectors, and the 16 gigabit Ethernet ports are compatible with the speed of 100M/10M downwards.
After the invention is adopted, a plurality of paths of Ethernet circuits are arranged in the backplane connector, so that the test unit board card inserted into each exchange card slot exchanges data with the exchange card through Ethernet communication, and the communication main port of the exchange card connects test data information to an external upper computer through a network; because the test unit board cards are provided with the backplane connector interfaces, the backplane connector interfaces adopt standard NXI bus interface definition and structural size, and each corresponding unit clamping groove of the backplane body is used for being in butt joint with the NXI bus interface of each test unit board card, the whole multifunctional test system does not need to be internally provided with an X86 computer board card, and each test unit board card does not need to be provided with an expensive FPGA and an interface chip, the Ethernet communication connection can be completed through the NXI bus interfaces, the interfaces are simple and low in cost, and the interconnection of the function board cards is realized based on a mature Ethernet communication mode.
Drawings
FIG. 1 is a block diagram of the present invention (a gigabit switch card);
FIG. 2 is a schematic data acquisition diagram of a gigabit switch card according to the present invention;
FIG. 3 is a schematic diagram of data acquisition for a gigabit switch card according to the present invention;
FIG. 4 is a schematic diagram of the internal principles of the terabyte switch card of the present invention;
FIG. 5 is a schematic diagram illustrating a docking principle of a test unit board card and a unit card slot according to the present invention;
FIG. 6 is a schematic diagram of the test signal and data flow directions of the present invention;
FIG. 7 is a schematic diagram of a test arrangement according to an embodiment of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the backplane connector 10, the backplane body 11, the switch card slot 12, the unit card slot 13, the power module 20, the ac input part 21, the 350W switching power supply 22, the switch card 30, the communication interface terminal 31, the communication main port 32, the switch chip 301, the ethernet transceiver 302, the test unit board 40, the NXI bus interface 41, the upper computer 50, and the chassis 60.
Detailed Description
The multifunctional test system based on ethernet board-based integration is shown in fig. 1-7, and includes a backplane connector 10, a power module 20, a switch card 30, and a plurality of test unit boards 40;
the backplane connector 10 comprises a backplane body 11, and an exchange card slot 12 and a plurality of street unit slots 13 are integrated on the backplane body 11;
the switch card 30 comprises a communication interface end 31 and a communication main port 32;
each test unit board card 40 is provided with a backplane connector interface, the backplane connector interface adopts standard NXI bus interface definition and structure size, namely, the NXI bus interface 41 is arranged, and different test unit board cards 40 are selected for test operation according to different purposes;
the power module 20 is used for supplying power to the backplane connector 10, the switch card 30 and the test unit board card 40;
the switch card 30 is inserted into the switch card slot 12 of the backplane connector 10, the corresponding test unit boards 40 are respectively inserted into the corresponding unit card slots 13, each corresponding unit card slot 12 of the backplane body 11 is used for butting an NXI bus interface of each test unit board 40, the backplane connector 10 connects data information of each test unit board 40 to the communication interface end 31 of the switch card 30 through ethernet communication, and the communication main port 32 of the switch card 30 connects the test data information to the external upper computer 50 through a network.
In specific implementation, the system further comprises a case 60 adopting a 3U standard case framework, the backplane connector 10, the switch card 30 and the test unit board card 40 are all arranged in the case 60, and a temperature acquisition module and a fan heat dissipation module are arranged in the case 60 to ensure that the inside of the whole case is at a normal industrial control temperature;
the power module 20 includes an ac input portion 21 and a 350W switching power supply 22, the 350W switching power supply 22 outputting 12V dc power to the backplane connector 10;
the test unit board 40 includes, but is not limited to, a voltage measurement card, a data acquisition card, a relay card, a digital input/output card, or a matrix card;
the number of the switch card slots 13 on the backplane body 11 is 16, two special switch chips 301 are arranged inside the switch card 30, and are interconnected through a cascade interface thereof, and are further provided with two 8-path ethernet transceivers 302, and each path is respectively connected to the corresponding switch card slot 13 through an ethernet line;
the NXI bus interface 41 comprises a group of ethernet signals, a 12V power supply, 4 paths of bidirectional synchronous trigger signals and a path of differential synchronous clock; the NXI bus interfaces 41 of all the test unit board cards 40 are defined the same, and communicate with the switch card 30 through the backplane connector 10, and the switch card 30 communicates with the upper computer 50, so as to realize the interactive control of the test unit board cards 40 and the upper computer 50;
the switch card 30 is specifically a ten-gigabit switch card or a gigabit switch card, and one of the ten-gigabit switch card and the gigabit switch card is selected according to the requirement of the data throughput of the test system and the consideration of the cost;
the gigabit exchange card has two gigabit Ethernet ports externally, the gigabit Ethernet port is compatible with 10000M/1000M/100M rate downwards and is used for communicating with a PC, the gigabit network card internally has 16 gigabit Ethernet ports, the 16 gigabit network cards are respectively connected to 16 corresponding test unit board cards through backplane connectors, and the 16 gigabit Ethernet port is compatible with 1000M/100M/10M rate downwards (see figure 3);
the gigabit switch card is provided with two gigabit Ethernet ports outwards, the gigabit Ethernet ports are compatible with the speed of 1000M/100M downwards and are used for communicating with a PC, the gigabit network card is internally provided with 16 gigabit Ethernet ports, the 16 gigabit network ports are respectively connected to 16 corresponding test unit board cards through backplane connectors, and the 16 gigabit Ethernet ports are compatible with the speed of 100M/10M downwards (see figure 2).
In specific implementation, different switch cards 30 may be selected for different application scenarios, for example, a gigabit switch card may be selected for a case where the corresponding data amount is not large; for the conditions of large data volume and fast data transmission requirement, a tera switch card, such as a high-speed data acquisition card and an oscilloscope test card, can be selected.
In specific implementation, backplane connectors of the test unit board cards 40 are NXI bus interfaces 41, mechanical dimensions of all the test unit board cards 40 are also uniform, the specific dimension is 191.5 (long) × 100 (wide), and the height is less than 20mm; under the condition of complying with the NXI bus standard and standard size, the test unit board cards 40 with various functions can be designed and inserted into the back plate body 11 in the case 60 to realize different test requirements, so that the test device is very flexible and convenient; in addition, the test unit board card 40 can also realize hot plug function.
The automatic fan temperature control system comprises a temperature acquisition module and a fan heat dissipation module, wherein 6 temperature sensors are distributed in the case and used for testing the temperature in the case, and an alarm is given when the temperature is over-temperature; in addition, 3 speed-adjustable fans are arranged in the case, the rotating speed of the fans is controlled according to the collected temperature, when the temperature in the case is low, the rotating speed is low, the working noise of the whole machine is low, and when the temperature of the whole machine rises, the rotating speed can be increased to meet the heat dissipation requirement, so that the temperature in the case is not too high.
In specific implementation, the backplane body 11 is further externally connected with a power card through an NXI bus interface 41, and the power card is used for additionally plugging a power supply and is not used temporarily; the chassis adopts a standard size chassis with the width of 19 inches and the height of 4U, and can be mounted on a standard cabinet.
The working principle is as follows: arranging a plurality of Ethernet circuits in the backplane connector, so that the test unit board card inserted into each switch card slot exchanges data with a switch card through Ethernet communication, and a communication main port of the switch card connects test data information to an external upper computer through a network; because the test unit board cards are provided with the backplane connector interface, the backplane connector interface adopts standard NXI bus interface definition and structural dimension, each corresponding unit clamping groove of the backplane body is used for being in butt joint with the NXI bus interface of each test unit board card, the whole multifunctional test system does not need to be internally provided with an X86 computer board card, and each test unit board card does not need to be provided with expensive FPGA and interface chips, the Ethernet communication connection can be completed through the NXI bus interface, the communication interconnection of signals is realized, the work of each function board card is controlled through upper computer software of an upper computer, different measurement or control functions are realized, the interface is simple and low in cost, and the interconnection of each function board card is realized based on a mature Ethernet communication mode.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. Many functional test system based on ethernet integrated circuit board ization, its characterized in that, it includes:
the backplane connector comprises a backplane body, wherein a switch card slot and a plurality of unit card slots are integrated on the backplane body;
a power supply module;
the exchange card comprises a communication interface end and a communication main port;
each test unit board card is provided with a backplane connector interface which adopts standard NXI bus interface definition and structure size, and different test unit board cards are selected according to different purposes for test operation;
the power module is used for supplying power to the backplane connector, the switch card and the test unit board card;
the backplane connector is used for connecting data information of each test unit board card to a communication interface end of the exchange card through Ethernet communication, and a communication main port of the exchange card is used for connecting the test data information to an external upper computer through a network.
2. The ethernet-card-based multifunctional test system of claim 1, wherein: the whole test system adopts a 3U standard case framework, the backplane connector, the exchange card and the test unit board card are all arranged in a case, and a temperature acquisition module and a fan heat dissipation module are arranged in the case to ensure that the inside of the whole case is at a normal industrial control temperature.
3. The ethernet-card-based multifunctional test system of claim 1, wherein: the test unit board card includes, but is not limited to, a voltage measurement card, a data acquisition card, a relay card, a digital input/output card or a matrix card.
4. The ethernet-card-based multifunctional test system of claim 1, wherein: the number of the switch card slots on the backboard body is 16, two special switch chips are arranged inside the through switch card and are interconnected through a cascade interface, and then two 8-path Ethernet transceivers are matched, and each path of Ethernet is respectively connected to the corresponding switch card slot.
5. The ethernet-card-serialization-based multifunctional test system of claim 1, wherein: the NXI bus interface definition comprises a group of Ethernet signals, a 12V power supply, 4 paths of bidirectional synchronous trigger signals and a path of differential synchronous clock; the NXI bus interfaces of all the test unit board cards are defined the same, and are communicated with the switch card through the backplane connector, and the switch card is communicated with the upper computer, so that interactive control of the test unit board cards and the upper computer is realized.
6. The ethernet-card-based multifunctional test system of claim 1, wherein: the switching cards are specifically ten-gigabit switching cards and gigabit switching cards, and one of the ten-gigabit switching cards is selected according to the requirement of data throughput of the test system and the consideration of cost.
7. The ethernet-card-serialization-based multifunctional test system of claim 6, wherein: the gigabit exchange card has two gigabit Ethernet ports for the outside, the gigabit Ethernet port is compatible in the downward rate of 10000M/1000M/100M and is used for communication with PC, the gigabit network card has 16 gigabit Ethernet ports inside, the 16 gigabit network card is connected to 16 corresponding test unit boards via backplane connectors, and the 16 gigabit network port is compatible in the downward rate of 1000M/100M/10M.
8. The Ethernet card-based multifunctional test system of claim 6, wherein: the gigabit switch card is provided with two gigabit Ethernet ports outwards, the gigabit Ethernet ports are compatible with the speed of 1000M/100M downwards and are used for communicating with a PC, the gigabit network card is internally provided with 16 gigabit Ethernet ports, the 16 gigabit Ethernet ports are respectively connected to 16 corresponding test unit board cards through backplane connectors, and the 16 gigabit Ethernet ports are compatible with the speed of 100M/10M downwards.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211027996.6A CN115396350A (en) | 2022-08-25 | 2022-08-25 | Multifunctional test system based on Ethernet board locking |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211027996.6A CN115396350A (en) | 2022-08-25 | 2022-08-25 | Multifunctional test system based on Ethernet board locking |
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2022
- 2022-08-25 CN CN202211027996.6A patent/CN115396350A/en active Pending
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| KR100503815B1 (en) * | 2004-02-02 | 2005-07-27 | (주) 지피시스 | Backplane of ip swiching system |
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