CN112887361B - Optical module-based test system and method - Google Patents
Optical module-based test system and method Download PDFInfo
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- CN112887361B CN112887361B CN202110021894.2A CN202110021894A CN112887361B CN 112887361 B CN112887361 B CN 112887361B CN 202110021894 A CN202110021894 A CN 202110021894A CN 112887361 B CN112887361 B CN 112887361B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
- G06F13/1668—Details of memory controller
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
- G06F13/4221—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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Abstract
The invention relates to the technical field of testing of 5G communication devices, in particular to a testing system and a testing method based on an optical module, wherein the testing system based on the optical module comprises a control unit, a testing device and a control unit, wherein the control unit comprises a communication interface connected with the testing device, a synchronous signal interface for receiving and transmitting synchronous signals, a function connection interface connected with a function unit and the control device; the functional unit comprises a flash storage unit, a control connection interface connected with the control unit and a detection interface connected with the device to be detected, wherein the flash storage unit is used for storing characteristic information matched with the current functional unit.
Description
Technical Field
The invention relates to the technical field of testing of 5G communication devices, in particular to a testing system and a testing method based on an optical module.
Background
5G is the latest generation of cellular mobile communication technology, and is also an extension following 4G, 3G and 2G systems. The performance goals of 5G are high data rates, reduced latency, energy savings, reduced cost, increased system capacity, and large-scale device connectivity. For 5G bearing, the novel high-speed optical module is gradually introduced into a forward transmission access layer, a middle transmission access layer and a return access layer, and the high-speed optical module is gradually introduced into a return convergence access layer and a core layer. The existing optical module and device testing system is poor in universality, a plurality of devices are often required to be matched for sampling testing in device testing requirements, sampling points among the devices are controlled by a computer when a traditional testing board is used for testing, and the optical power linearity testing of a TOSA (transmitter optical transmitter and transmitter optical subassembly) is taken as an example for explanation. The conventional test sequence is as follows: the computer sends a command, the test board sets a DAC value, after waiting for a period of time, the computer sends a command to read the optical power value of the equipment, and the computer sends a command to read the ADC sampling value of the test board. If 1024 points are sampled in one test, the four steps need to be repeated 1024 times, and frequent communication causes low sampling efficiency, long test time and low efficiency.
Disclosure of Invention
In view of the above-mentioned drawbacks, the present invention provides a test system and method based on an optical module, and in one aspect, the present invention provides a test system based on an optical module, wherein: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the control unit comprises a communication interface connected with the test equipment, a synchronous signal interface for receiving and transmitting synchronous signals, a function connection interface connected with the function unit and a control device, wherein the control device is used for receiving an external test instruction and forming a first control signal and a second control signal according to the test instruction, the first control signal is output through the function connection interface, and the second control signal is output through the synchronous signal interface;
the functional unit comprises a flash storage unit, a control connection interface connected with the control unit and a detection interface connected with the device to be detected, wherein the flash storage unit is used for storing characteristic information matched with the current functional unit.
Preferably, the above-mentioned optical module-based test system, wherein: the function connection interface and the control connection interface at least comprise a communication connector, a state connector and a data acquisition connector.
On the other hand, the invention further provides a test method based on the optical module, wherein: a light module based test system comprising any of the above, further comprising:
after the initialization of the control unit is completed, under the state that an externally input test instruction is received, at least one current control command matched with the test instruction is formed according to the test instruction; forming a first control signal and a second control signal according to the current control command;
the second control signal is output through a synchronous signal interface, and the test equipment matched with the second control signal executes the action matched with the second control signal;
the first control signal controls the functional unit to collect the current data of the module to be tested and transmits the data to the control unit;
and judging whether the current control command is matched with the test instruction or not, and finishing the test in a state that the current control command is matched with the test instruction.
Preferably, the test method based on the optical module is as follows: after the initialization of the control unit is completed, under the state that an externally input test instruction is received, at least one control command matched with the test instruction is formed according to the test instruction; before forming the first control signal and the second control signal according to the control command, the method further comprises:
and under the state that the control unit is communicated with the functional unit, the control unit reads the characteristic information recorded in the flash storage unit and initializes the control unit according to the characteristic information.
Preferably, the above testing method based on the optical module further includes:
continuing to form a next control command under the condition that the current control command does not match the test command;
and forming the current control command according to the next control command.
Preferably, the above testing method based on an optical module further includes:
and controlling the control unit to output the data.
In another aspect, the present invention further provides a terminal device, including:
at least one processor; and (c) a second step of,
a memory communicatively coupled to the at least one processor; wherein, the first and the second end of the pipe are connected with each other,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform any one of the above-described light module-based testing methods.
Finally, the present invention further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program, when executed by a processor, implements any one of the above-mentioned optical module-based testing methods.
Compared with the prior art, the invention has the advantages that:
according to the technical scheme, the testing equipment is controlled through the Ethernet and the USBHost interface, continuous sampling can be performed through the UART synchronous interface, sampling point data are synchronous, the sampling rate is greatly improved, meanwhile, the data are uniformly packaged and sent after the data are acquired, and the transmission time of the acquired data is greatly reduced. In addition, the control unit and the function unit are connected by adopting an auto-negotiation function port, so that the control unit can be adapted to a plurality of different function units, and different configurations are carried out through the characteristic information stored in the flash storage unit on the function unit to realize the compatibility of the control unit.
Drawings
Fig. 1 is a schematic structural diagram of a test system based on an optical module according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a testing method based on an optical module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1, in one aspect, the present invention provides a test system based on an optical module, wherein: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the control unit comprises a communication interface connected with the test equipment, a synchronous signal interface for receiving and transmitting a synchronous signal, a function connection interface connected with the function unit and a control device, wherein the control device is used for receiving an external test instruction and forming a first control signal and a second control signal according to the test instruction, the first control signal is output through the function connection interface, and the second control signal is output through the synchronous signal interface;
the control device is mainly responsible for the functions of operation, control, communication, storage and monitoring of the control unit;
the communication interface refers to a communication interface between the control unit and external equipment (including test equipment) and a communication interface including three standards, namely a USBHost interface, a USBDevice function interface and an Ethernet interface; the USBHost interface can communicate with the device through the USB2.0 interface, the USBDevice function interface can communicate with the device through the USB2.0 interface, and the Ethernet interface supports TCP/UDP protocol.
The synchronous signal interface can be used for synchronizing the operation among the sampling devices, and finally the sampling efficiency is improved; the synchronization signal may be a UART signal.
And the function unit comprises a flash storage unit, a control connection interface connected with the control unit and a detection interface connected with a device to be detected, and the flash storage unit is used for storing characteristic information matched with the current function unit.
The flash memory unit stores the feature information of the current functional unit, and when the whole system is started, the control unit needs to read the feature information recorded in the flash memory unit first and perform function configuration on the control connection interface according to the feature information.
The detection interface comprises a module and an OSA interface and is used for connecting a module to be tested or a device product.
As a further preferred embodiment, the above-mentioned testing system based on the optical module, wherein: the function connection interface and the control connection interface at least comprise a communication connector, a state connector and a data acquisition connector. The communication connector may be formed of a bus interface that may be used to obtain parameter information such as temperature, voltage, etc., the status connector may be formed of an interface including communication, monitoring, and control I/O, the control I/O may specify functions through function negotiation, and the data acquisition connector may be formed of an analog signal control and acquisition interface.
Example two
As shown in fig. 2, on the other hand, the present invention further provides a testing method based on an optical module, wherein: the optical module-based test system comprises any one of the above components, and further comprises:
step S110, after the initialization of the control unit is completed, in a state of receiving an externally input test instruction, forming at least one current control command matched with the test instruction according to the test instruction; forming a first control signal and a second control signal according to the current control command; usually, the first control signal and the second control signal both include a flag bit.
Step S120, outputting the second control signal through a synchronous signal interface, and executing an action matched with the second control signal by the test equipment matched with the second control signal; and the external equipment sends a corresponding test signal to the module to be tested after executing the corresponding action.
Step S130, the first control signal controls the functional unit to collect the current data of the module to be tested and transmits the data to the control unit; specifically, the module to be tested collects the test signal after receiving the test signal sent by the external device, and sends the collected data to the control unit. The collected data comprises a flag bit signal. The control unit classifies the collected data according to the zone bit.
Step S140, judging whether the current control command matches the test command, and finishing the test under the state that the current control command matches the test command;
and S150, controlling the control unit to output the data.
As a further preferred embodiment, the above-mentioned optical module-based test method, wherein: step S110, after the initialization of the control unit is completed, in a state of receiving an externally input test instruction, forming at least one control command matched with the test instruction according to the test instruction; before forming the first control signal and the second control signal according to the control command, the method further comprises the following steps:
and step S109, in the state that the control unit and the function unit are communicated, the control unit reads the characteristic information recorded in the flash storage unit and initializes the control unit according to the characteristic information.
Preferably, the above testing method based on an optical module further includes:
step 1401, under the state that the current control command does not match the test command, continuing to form a next control command;
and step S1402, forming the current control command according to the next control command.
One embodiment is illustrated: for example, 1024 sampling point data needs to be acquired in a test, in a state where a control unit and a function unit are communicated, the control unit reads feature information recorded in the flash storage unit, and performs initialization processing on the control unit according to the feature information, so that a 1/O interface of the control unit is configured as a function interface matched with a current function unit, after the initialization of the control unit is completed, in a state where an externally input test instruction is received, the test instruction includes 1024 sampling instructions, at least one current control instruction matched with the test instruction is formed according to the test instruction, the control instruction includes 1024 sampling instruction requirements, when the current control instruction is acquired for the first time, the current control instruction is generally the first sampling instruction requirement, when the first sampling instruction requirement is completed, the second sampling instruction requirement is formed, and so on. The control module forms a first control signal and a second control signal according to the current control command; the second control signal is output through a synchronous signal interface, and the test equipment matched with the second control signal executes the action matched with the second control signal; the first control signal controls the functional unit to acquire the current data of the module to be tested and transmits the data to the control unit; at the moment, the control unit judges whether the current control command is the last sampling instruction requirement, if the current control command is the last sampling instruction requirement, the control command is judged to be matched with the test instruction, and the test is finished under the condition that the current control command is matched with the test instruction; and controlling the control unit to output the data to an external computer, and if the current control command is not required by the last acquisition instruction, continuing to form the current control command according to the requirement of the next acquisition instruction to continue testing until the test is finished when the current control command is required by the last sampling instruction.
According to the technical scheme, the testing equipment is controlled through the Ethernet and the USBHost interface, continuous sampling can be performed through the UART synchronous interface, sampling point data are synchronous, the sampling rate is greatly improved, meanwhile, the data are uniformly packaged and sent after the data are acquired, and the transmission time of the acquired data is greatly reduced. In addition, the control unit and the functional unit are connected by adopting an auto-negotiation functional port, so that the control unit can be adapted to a plurality of different functional units, and different configurations are carried out through characteristic information stored in a flash storage unit on the functional unit to realize the compatibility of the control unit.
In another aspect, the present invention further provides a terminal device, including:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform any one of the above-described light module-based testing methods.
Finally, the present invention further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program, when executed by a processor, implements any one of the above-mentioned optical module-based testing methods.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A test method based on an optical module is characterized in that: the testing system based on the optical module comprises a control unit and a functional unit:
the control unit comprises a communication interface connected with the test equipment, a synchronous signal interface for receiving and transmitting synchronous signals, a function connection interface connected with the function unit and a control device, wherein the control device is used for receiving an external test instruction and forming a first control signal and a second control signal according to the test instruction, the first control signal is output through the function connection interface, and the second control signal is output through the synchronous signal interface;
the functional unit comprises a flash storage unit, a control connection interface connected with the control unit and a detection interface connected with a device to be detected, the flash storage unit is used for storing characteristic information matched with the current functional unit, and the functional connection interface and the control connection interface at least comprise a communication connector, a state connector and a data acquisition connector;
further comprising:
after the initialization of the control unit is completed, under the state that an externally input test instruction is received, at least one current control command matched with the test instruction is formed according to the test instruction; forming a first control signal and a second control signal according to the current control command;
the second control signal is output through a synchronous signal interface, and the test equipment matched with the second control signal executes the action matched with the second control signal;
the first control signal controls the functional unit to acquire the current data of the module to be tested and transmits the data to the control unit;
judging whether the current control command is matched with the test instruction or not, and finishing the test under the state that the current control command is matched with the test instruction;
and controlling the control unit to output the data.
2. The optical module-based testing method according to claim 1, wherein: after the initialization of the control unit is completed, under the state that an externally input test instruction is received, at least one control command matched with the test instruction is formed according to the test instruction; before forming the first control signal and the second control signal according to the control command, the method further comprises the following steps:
and under the state that the control unit is communicated with the functional unit, the control unit reads the characteristic information recorded in the flash storage unit and initializes the control unit according to the characteristic information.
3. The optical module-based testing method according to claim 1, further comprising:
continuing to form a next control command under the condition that the current control command does not match the test command;
and forming the current control command according to the next control command.
4. A terminal device, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to cause the at least one processor to perform a light module based testing method as claimed in any one of claims 1 to 3.
5. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, implements a light module-based testing method according to any one of claims 1 to 3.
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| DE102015108064B4 (en) * | 2015-05-21 | 2018-08-23 | in-tech GmbH | Test system and method for automated testing of at least two simultaneously connected to the test system control units and ECU connection and control unit switching unit for use in such a test system |
| US9955371B1 (en) * | 2017-01-04 | 2018-04-24 | Rohde & Schwarz Gmbh & Co. Kg | Method for testing a device under test, electronic device, and measurement unit |
| CN108365888A (en) * | 2018-02-01 | 2018-08-03 | 四川泰瑞创通讯技术股份有限公司 | The device of test light module performance |
| CN108924548A (en) * | 2018-08-01 | 2018-11-30 | 昆山软龙格自动化技术有限公司 | Multi-cam test device based on optical fiber transmission technique |
| CN109327256A (en) * | 2018-11-22 | 2019-02-12 | 成都网动光电子技术股份有限公司 | Optical module the high and low temperature test system based on photoswitch control |
| US11595289B2 (en) * | 2019-03-29 | 2023-02-28 | Barefoot Networks, Inc. | Network testing using a programmable packet engine |
| CN110350991A (en) * | 2019-07-10 | 2019-10-18 | 江苏亨通光网科技有限公司 | A kind of optical module Auto-Test System, method, computer equipment and storage medium |
| CN210490882U (en) * | 2019-09-17 | 2020-05-08 | 成都芯瑞科技股份有限公司 | Four-channel receiving-transmitting integrated parallel automatic adjusting test system |
| CN111487524B (en) * | 2020-05-15 | 2022-03-11 | 上海华力微电子有限公司 | Universal chip test system, test method and storage medium |
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