CN109510662B - Receiving test system and method of optical module, upper computer and light source board - Google Patents
Receiving test system and method of optical module, upper computer and light source board Download PDFInfo
- Publication number
- CN109510662B CN109510662B CN201811398323.5A CN201811398323A CN109510662B CN 109510662 B CN109510662 B CN 109510662B CN 201811398323 A CN201811398323 A CN 201811398323A CN 109510662 B CN109510662 B CN 109510662B
- Authority
- CN
- China
- Prior art keywords
- light
- light source
- onu
- optical
- source board
- 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.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 301
- 238000012360 testing method Methods 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims description 42
- 238000002360 preparation method Methods 0.000 claims abstract description 75
- 238000010998 test method Methods 0.000 claims abstract description 9
- 238000012790 confirmation Methods 0.000 claims description 26
- 108010076504 Protein Sorting Signals Proteins 0.000 claims description 24
- 239000013307 optical fiber Substances 0.000 claims description 9
- 229910002056 binary alloy Inorganic materials 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000015654 memory Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000013522 software testing Methods 0.000 description 2
- 235000011449 Rosa Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- H04B10/0799—Monitoring line transmitter or line receiver equipment
Abstract
The invention discloses a receiving test method of an optical module, which comprises the following steps: the upper computer sends a test preparation instruction to the light source board to inform a controller of the light source board to provide high and low levels for an optical module sending enabling end of the light source board according to a preset rule so as to generate a light sequence representing the test preparation instruction and send the light sequence to the ONU for test preparation through a light path of the optical attenuator; the upper computer controls the light source board to continuously emit light; the upper computer controls the optical attenuator through the circuit according to a preset rule, and provides light meeting preset light power for the ONU, so that the ONU performs light power calibration or LOS point setting by using the received light. The invention can ensure the stability of the test and improve the test efficiency. The invention also discloses a receiving test system of the optical module, an upper computer and a light source plate.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a receiving test system and method of an optical module, an upper computer and a light source board.
Background
The high price of the optical fiber access network equipment is always a key and difficult problem of the popularization of optical fibers to the home, and becomes the key point of the current access network research technology. The BOSA On Board (BOSA On Board) technology is abbreviated as a BOB technology, and the difference between the ONU (optical network unit) hardware structure and the conventional ONU structure is only in the package of the optical module: the traditional ONU equipment is packaged by an independent optical module and can be hot-plugged on an ONU board; the BOB technology is to weld the optical module on the ONU plate directly, so that the structure of the ONU system plate is simplified, the equipment cost is reduced, the software structure is basically not different, and the price of the optical fiber access network equipment can be greatly reduced.
The optical module on the traditional ONU adopts independent packaging and independent testing, and the testing is generally finished by an optical module provider. However, the optical module of the BOB technology is integrated on the ONU board, and the test board and the test center cannot be used for testing the optical module.
At present, an upper computer and an ONU in a receiving test system generally need to be connected through RJ45 or RS232, and it can be understood that the cable may have aging or poor contact conditions, and the connection mode has a test stability problem. The description of the related prior art can be found in the chinese patent application with publication number CN 104901738A, and related papers, such as: chenguangdong and BOB optical terminal automated testing system design and realization [ D ] Shandong university, 2016.
Disclosure of Invention
In view of the above, the present invention has been made to provide a reception test method and system of an optical module that overcomes or at least partially solves the above-mentioned problems.
In a first aspect, an embodiment of the present invention provides a method for receiving and testing an optical module, including the following steps:
the upper computer sends a test preparation instruction to the light source board;
the controller of the light source board provides high and low levels for an optical module sending enabling end of the light source board according to a preset rule to generate a light sequence representing a test instruction preparation, and the light sequence is sent to the ONU for test preparation through a light path of the optical attenuator;
the upper computer controls the light source board to continuously emit light;
the upper computer controls the optical attenuator through a circuit according to a preset rule, or the light source board controls the optical attenuator through the circuit according to the preset rule to provide light meeting preset optical power for the ONU;
the ONU performs optical power calibration or LOS point setting using the received light.
In a second aspect, an embodiment of the present invention provides a method for receiving and testing an optical module, including the following steps:
the upper computer sends a test preparation instruction to the light source board to inform a controller of the light source board to provide high and low levels for an optical module sending enabling end of the light source board according to a preset rule so as to generate a light sequence representing the test preparation instruction and send the light sequence to the ONU for test preparation through a light path of the optical attenuator;
the upper computer controls the light source board to continuously emit light;
the upper computer controls the optical attenuator through the circuit according to a preset rule, and provides light meeting preset light power for the ONU, so that the ONU performs light power calibration or LOS point setting by using the received light.
In a third aspect, an embodiment of the present invention provides a method for receiving and testing an optical module, including the following steps:
the light source board receives a test preparation instruction sent by the upper computer;
the controller of the light source board provides high and low levels for an optical module sending enabling end of the light source board according to a preset rule to generate a light sequence representing a test instruction preparation, and the light sequence is sent to the ONU for test preparation through a light path of the optical attenuator;
the light source plate is controlled by the upper computer to continuously emit light;
the light source board controls the optical attenuator through a circuit according to a preset rule, and provides light meeting preset light power for the ONU, so that the ONU performs light power calibration or LOS point setting by using the received light.
In a fourth aspect, an embodiment of the present invention provides a receiving test system for an optical module, including an upper computer, a light source board, an optical attenuator, and an ONU, where:
the upper computer is electrically connected with the light source board, the light source board is optically connected with the optical attenuator, the optical attenuator is optically connected with the ONU, and the light source board is also electrically connected with the optical attenuator;
the upper computer is used for sending a test preparation instruction to the light source board and controlling the light source board to continuously emit light; the upper computer is also used for controlling the optical attenuator through a circuit according to a preset rule and providing light meeting preset optical power for the ONU;
the optical module testing system comprises a light source board, a controller and an optical attenuator, wherein the light source board is used for providing high and low levels for an optical module sending enabling end of the light source board by the controller according to a preset rule so as to generate an optical sequence representing a testing instruction to be prepared, and the optical sequence is sent to an ONU (optical network unit) for testing preparation through an optical path of the optical attenuator; the light source board is also used for continuously emitting light after receiving the control of the upper computer;
the optical attenuator is used for receiving the circuit control of the upper computer and is used as an optical path channel between the light source board and the ONU;
the ONU is used for receiving a light sequence representing the ready test instruction from the light source board and performing optical power calibration or LOS point setting by using the received light.
In a fifth aspect, an embodiment of the present invention further provides a receiving test system for an optical module, including an upper computer, a light source board including the optical module, an optical attenuator, and an ONU, where:
the upper computer is electrically connected with the light source board, the light source board is optically connected with the optical attenuator, the optical attenuator is optically connected with the ONU, and the upper computer is electrically connected with the optical attenuator;
the upper computer is used for sending a test preparation instruction to the light source board and controlling the light source board to continuously emit light;
the optical module testing system comprises a light source board, a controller and an optical attenuator, wherein the light source board is used for providing high and low levels for an optical module sending enabling end of the light source board by the controller according to a preset rule so as to generate an optical sequence representing a testing instruction to be prepared, and the optical sequence is sent to an ONU (optical network unit) for testing preparation through an optical path of the optical attenuator; the light source board is also used for continuously emitting light after being controlled by the upper computer; the light source board is also used for controlling the optical attenuator through a circuit according to a preset rule and providing light meeting preset optical power for the ONU;
the optical attenuator is used for receiving the circuit control of the light source board and is used as an optical path channel between the light source board and the ONU;
the ONU is used for receiving a light sequence representing the ready test instruction from the light source board and performing optical power calibration or LOS point setting by using the received light.
In a sixth aspect, an embodiment of the present invention further provides an upper computer, including an instruction sending module, a first control module, and a second control module, where:
the instruction sending module is used for sending a test preparation instruction to the light source board so as to inform a controller of the light source board to provide high and low levels for an optical module sending enabling end of the light source board according to a preset rule so as to generate an optical sequence representing the test preparation instruction and send the optical sequence to the ONU for test preparation through an optical path of the optical attenuator;
the first control module is used for controlling the light source plate to continuously emit light;
and the second control module is used for controlling the optical attenuator through a circuit according to a preset rule, and providing light meeting the preset light power for the ONU, so that the ONU performs light power calibration or LOS point setting by using the received light.
In a seventh aspect, an embodiment of the present invention further provides a light source board, including a controller and a light module:
the controller is used for receiving a test preparation instruction sent by the upper computer; providing high and low levels for an optical module sending enabling end of the light source board according to a preset rule to generate an optical sequence representing a test instruction preparation, and sending the optical sequence to the ONU for test preparation through an optical path of the optical attenuator; the optical attenuator is controlled through a circuit according to a preset rule, light meeting preset light power is provided for the ONU, and the ONU can conveniently carry out light power calibration or LOS point setting by utilizing the received light;
the optical module is used for receiving the control of the upper computer and continuously emitting light.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least: the host computer does not utilize RJ45 or RS232 to directly link to each other with ONU, can avoid because the cable has the unstable condition of test that ageing or contact failure caused, can promote efficiency of software testing. In addition, according to the method, the controller of the light source board provides high and low levels for the optical module sending enabling end of the light source board according to the preset rule so as to generate the light sequence representing the test instruction preparation, and the light sequence is sent to the ONU through the optical path of the optical attenuator to carry out test preparation, so that a new solution is provided for the existing test method.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a method for testing the reception of an optical module according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for testing the receiving of an optical module according to a second embodiment of the present invention;
fig. 3 is a flowchart of a method for testing the reception of the optical module according to a third embodiment of the present invention;
fig. 4 is a flowchart of a method for testing the reception of the optical module according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a receiving test system of an optical module according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a receiving test system of an optical module according to a sixth embodiment of the present invention;
fig. 7 is a schematic structural diagram of an upper computer in the seventh embodiment of the present invention;
fig. 8 is a schematic structural diagram of a light source board according to an eighth embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example one
In order to solve the problem of unstable test in the prior art, an embodiment of the present invention provides a method for receiving and testing an optical module, as shown in fig. 1, including the following steps:
and S101, sending a test preparation instruction to the light source board by the upper computer.
Step S102, the controller of the light source board provides high and low levels for the optical module sending enable end of the light source board according to a preset rule to generate a light sequence representing the preparation of a test instruction, and the light sequence is sent to the ONU through the optical path of the optical attenuator to prepare for the test.
Specifically, the controller of the light source board provides high and low levels for the sending enable end of the light module of the light source board according to a preset rule so as to generate a light and light sequence representing the preparation of the test instruction. According to the optical module-related electrical interface protocol INF-8074, it is known that the transmit enable terminal can implement a turn-off emission function, and a high level or a suspension is effective, and now by using this pin function, a presence or absence sequence shaped like "presence of light, absence of light, presence of light" is generated, which represents a preparation of a test instruction.
And step S103, controlling the light source board to continuously emit light by the upper computer.
And step S104, the upper computer controls the optical attenuator through the circuit according to a preset rule, or the light source board controls the optical attenuator through the circuit according to a preset rule, and light meeting preset optical power is provided for the ONU.
In step S105, the ONU performs optical power calibration or LOS point setting using the received light.
In steps S103 to S105, since there is no configuration information in the main control chip of the initialized BOB optical module, it is necessary to perform the calibration of the received optical power and set the LOS point.
Specifically, the method for performing the received optical power calibration may include the following steps:
(1) the upper computer controls the light source board to transmit light with specified power, the light power transmitted by the light source board is generally fixed, such as-5 dBm, at this time, the optical attenuator is set to have no attenuation, the ONU receives the light with-5 dBm, the light receiving sub-module (ROSA) converts the light with-5 dBm into corresponding current, the current is output to the main control chip of the BOB optical module from an RSSI (Received Signal Strength indicator) pin, the main control chip converts the current into a voltage value, the voltage value is converted into a Digital voltage value, such as 1.2V, through an ADC (Analog-to-Digital Converter), and finally, the corresponding relation between the Received light with-5 dBm and the output voltage of 1.2V is recorded.
(2) And the upper computer or the light source board controls the optical attenuator through a circuit according to a preset rule to provide light meeting preset optical power for the ONU, for example, if the optical attenuator is controlled to be-15 dBm, the OUN received optical power is-20 dBm. Likewise, this optical power is converted to a digital voltage value, such as 0.5V, and the correspondence of the received-20 dBm light to the output 0.5V voltage is recorded.
(3) And (3) obtaining an equation in the form of "y ═ kx + b" according to two groups of "optical power-ADC voltage values" in the (1) and (2), wherein x is the ADC voltage value, y is the optical power, and k and b are parameters required by the BOB optical module for accurate optical power reporting, and storing the parameters. At this point, the calibration of the received optical power is completed. In the practical use of the ONU in the future, the input optical power can be calculated by using the parameters k and b and the voltage value of the output ADC, and then the optical power reporting is completed according to the requirements of the SFF-8472 protocol.
In addition, an LOS point can be set, for example, the LOS (LOSs of signal alarm) point is set to-30 dBm, after (1) is finished, the transmitting optical power of the board is generally fixed, for example, -5dBm, and then the upper computer or the light source board controls the optical attenuator to generate attenuation of-25 dBm. The OUN receives an optical power of-30 dBm, converts the optical power to a digital voltage value (e.g., 0.2V), and records the value as the LOS point. In the future, when the digital voltage value output by the OUN is less than 0.2V, the optical module generates an LOS alarm.
In this embodiment, the host computer does not utilize RJ45 or RS232 and ONU direct linking to each other, can avoid because the cable has the unstable condition of test that ageing or contact failure caused, has promoted efficiency of software testing. In addition, according to the method, the controller of the light source board provides high and low levels for the optical module sending enabling end of the light source board according to the preset rule so as to generate the light sequence representing the test instruction preparation, and the light sequence is sent to the ONU through the optical path of the optical attenuator to carry out test preparation, so that a new solution is provided for the existing test method. It can be understood that the test method disclosed in this embodiment may be applied to an optical module based on the BOB technology, and may also be applied to other optical modules.
Example two
In practical application, in order to ensure the reliability of communication between the ONU and the upper computer and the light source board, the ONU should also feed back reception confirmation information to the light source board. Specifically, an embodiment of the present invention provides a method for receiving and testing an optical module, as shown in fig. 2, including the following steps:
step S201, the upper computer sends a test preparation instruction to the light source board.
Step S202, the controller of the light source board provides high and low levels for the optical module sending enable end of the light source board according to a preset rule to generate a light sequence representing the preparation of a test instruction, and the light sequence is sent to the ONU through the optical path of the optical attenuator to prepare for the test.
In step S203, after receiving the lightless sequence, if the ONU determines that the lightless sequence is a ready-to-test instruction, the ONU feeds back reception confirmation information to the upper computer.
Specifically, the ONU optical module converts a received light sequence into a differential signal with high and low amplitudes, then the differential signal is converted into a level signal sequence after being judged by an LA limiting amplifier, the level signal is sent to an ONU controller through a LOSs of signal alarm (LOS) pin of the ONU optical module, the ONU controller judges whether the received level signal sequence is matched with a preset value, and if the received level signal sequence is matched with the preset value, the received level signal sequence is judged to be a ready-to-test instruction.
And then, the ONU controller converts an instruction signal which is stored in the MCU of the ONU optical module and represents a receiving confirmation instruction into a binary system, then provides high and low levels for a sending enabling end of the ONU optical module to generate a light sequence corresponding to the receiving confirmation instruction, sends the light sequence to the light source board, and the light source board converts the received light sequence into corresponding electrical information and sends the electrical information to the upper computer.
And step S204, the upper computer controls the light source board to continuously emit light.
And S205, the upper computer controls the optical attenuator through the circuit according to a preset rule, or the light source board controls the optical attenuator through the circuit according to a preset rule, and light meeting preset optical power is provided for the ONU.
In step S206, the ONU performs optical power calibration or LOS point setting using the received light.
The specific method of steps S201, S204-S206 is described in detail in the first embodiment, and will not be elaborated here.
EXAMPLE III
Based on the same inventive concept, an embodiment of the present invention further provides a method for receiving and testing an optical module, as shown in fig. 3, including the following steps:
and S301, the upper computer sends a test preparation instruction to the light source board to inform a controller of the light source board to provide high and low levels for an optical module sending enabling end of the light source board according to a preset rule so as to generate a light sequence representing the test preparation instruction and send the light sequence to the ONU through a light path of the optical attenuator to prepare for testing.
And S302, the upper computer controls the light source board to continuously emit light.
And S303, the upper computer controls the optical attenuator through the circuit according to a preset rule, and provides light meeting preset light power for the ONU, so that the ONU performs light power calibration or LOS point setting by using the received light.
In some embodiments, before the host computer controls the light source board to continuously emit light, the host computer further includes: and the upper computer receives the receiving confirmation information fed back by judging that the ONU is a ready test instruction after receiving the lightless sequence.
Specifically, after receiving the lightless sequence, the method for determining whether the ONU is a test instruction preparation method includes: the ONU optical module converts the received light sequence into a level signal sequence, sends the level signal to the ONU controller through a signal loss alarm pin of the ONU optical module, and the ONU controller judges whether the received level signal sequence is matched with a preset value or not, judges that the received level signal sequence is a standby test instruction if the level signal sequence is matched with the preset value, and feeds back a reception confirmation message to the upper computer. The method for feeding back the receiving confirmation information to the upper computer by the ONU comprises the following steps: the ONU controller converts an instruction signal which is stored in an MCU of the ONU optical module and represents reception confirmation information into a binary system, then provides high and low levels for a sending enabling end of the ONU optical module to generate a light sequence corresponding to the instruction, sends the light sequence to the light source board, and the light source board converts the received light sequence into electric information which represents the reception confirmation information and sends the electric information to the upper computer.
The specific implementation process of each step in this embodiment has been described in detail in the first embodiment and the second embodiment, and will not be explained in detail here.
Example four
Based on the same inventive concept, an embodiment of the present invention further provides a method for receiving and testing an optical module, as shown in fig. 4, including the following steps:
s401, a light source board receives a test preparation instruction sent by an upper computer;
s402, a controller of the light source board provides high and low levels for an optical module sending enable end of the light source board according to a preset rule to generate a light sequence representing a test instruction preparation, and the light sequence is sent to an ONU for test preparation through a light path of an optical attenuator;
s403, the light source board is controlled by the upper computer to continuously emit light;
s404, the light source board controls the optical attenuator through the circuit according to a preset rule, and provides light meeting preset light power for the ONU, so that the ONU performs light power calibration or LOS point setting by using the received light.
In some embodiments, the light source board further comprises, before being controlled by the host computer to continuously emit light: and the upper computer receives the receiving confirmation information fed back by judging that the ONU is a ready test instruction after receiving the lightless sequence.
Specifically, after receiving the lightless sequence, the method for determining whether the ONU is a test instruction preparation method includes: the ONU optical module converts the received light sequence into a level signal sequence, sends the level signal to the ONU controller through a signal loss alarm pin of the ONU optical module, and the ONU controller judges whether the received level signal sequence is matched with a preset value or not, judges that the received level signal sequence is a standby test instruction if the level signal sequence is matched with the preset value, and feeds back a reception confirmation message to the upper computer. The method for feeding back the receiving confirmation information to the upper computer by the ONU comprises the following steps: the ONU controller converts an instruction signal which is stored in an MCU of the ONU optical module and represents reception confirmation information into a binary system, then provides high and low levels for a sending enabling end of the ONU optical module to generate a light sequence corresponding to the instruction, sends the light sequence to the light source board, and the light source board converts the received light sequence into electric information which represents the reception confirmation information and sends the electric information to the upper computer.
The specific implementation process of each step in this embodiment has been described in detail in the first embodiment and the second embodiment, and will not be explained in detail here.
EXAMPLE five
Based on the same inventive concept, an embodiment of the present invention further provides a receiving test system of an optical module, as shown in fig. 5, including an upper computer 10, a light source board 20, an optical attenuator 30, and an ONU40, wherein:
the upper computer 10 is connected with the light source board 20 through a network cable, the light source board 20 is connected with the optical attenuator 30 through an optical fiber, the optical attenuator 30 is connected with the ONU40 through an optical fiber, and the upper computer 10 is connected with the optical attenuator 30 through a serial port cable.
The upper computer 10 is used for sending a test preparation instruction to the light source board 20 and controlling the light source board 20 to continuously emit light; the upper computer 10 is further configured to control the optical attenuator 30 through a circuit according to a preset rule, and provide light meeting a preset optical power for the ONU 40.
The light source board 20 is configured to provide a high-low level for an optical module sending enable end of the light source board 20 according to a preset rule by using a controller of the light source board 20 to generate an optical sequence representing a preparation test instruction, and send the optical sequence to the ONU40 for test preparation through an optical path of the optical attenuator 30; the light source board 20 is also used for continuously emitting light after receiving the control of the upper computer 10.
And the optical attenuator 30 is used for receiving circuit control of the upper computer 10 and is used as an optical path channel between the light source board 20 and the ONU 40. The optical attenuator 30 is a programmable optical attenuator 30.
And the ONU40 is used for receiving light and light sequences representing preparation test instructions from the light source board 20 and performing optical power calibration or LOS point setting by using the received light.
In order to ensure the reliability of communication between the ONU40 and the upper computer 10 and the light source board 20, the ONU40 is further configured to determine whether the test instruction is a preparation test instruction after receiving the absence of the light sequence, and if so, feed back reception confirmation information to the upper computer 10.
Specifically, the ONU40 converts the received light or dark sequence into a level signal sequence by using the ONU40 optical module, and sends the level signal to the ONU40 controller through a signal loss alarm pin of the ONU40 optical module, and the ONU40 controller determines whether the received level signal sequence matches a preset value, and determines that the received level signal sequence is a standby test instruction if the level signal sequence matches the preset value.
The ONU40 further converts, by using the ONU40 controller, an instruction signal representing a confirmation instruction stored in the MCU of the ONU40 optical module into a binary system, then provides a high-low level to a transmission enable terminal of the ONU40 optical module to generate a light-light sequence corresponding to the confirmation instruction, and transmits the light-light sequence to the light source board 20, where the light source board 20 is further configured to convert the received light-light sequence into corresponding electrical information and transmit the electrical information to the upper computer 10.
EXAMPLE six
Based on the same inventive concept, an embodiment of the present invention further provides another receiving and testing system for an optical module, as shown in fig. 6, including an upper computer 10 ', a light source board 20 including an optical module, an optical attenuator 30 ', and an ONU40 ', wherein:
the upper computer 10 'is connected with the light source board 20' through a network cable, the light source board 20 'is connected with the optical attenuator 30' through an optical fiber, the optical attenuator 30 'is connected with the ONU 40' through an optical fiber, and the light source board 20 'is further connected with the optical attenuator 30' through a serial port line.
The upper computer 10 ' is used for sending a test preparation instruction to the light source board 20 ' and controlling the light source board 20 ' to continuously emit light;
the light source board 20 'is used for providing high and low levels for an optical module sending enable end of the light source board 20' by using a controller of the light source board according to a preset rule so as to generate an optical sequence representing a test preparation instruction, and sending the optical sequence to the ONU40 'for test preparation through an optical path of the optical attenuator 30'; the light source plate 20 'is also used for continuously emitting light after being controlled by the upper computer 10'; the light source board 20 ' is further configured to control the optical attenuator 30 ' according to a predetermined rule through a circuit to provide the ONU40 ' with light satisfying a predetermined optical power.
The optical attenuator 30 'is used for receiving the circuit control of the light source board 20' and is used as an optical path channel between the light source board 20 'and the ONU 40'.
The ONU40 'is used for receiving light and presence sequences representing preparation test instructions from the light source board 20' and performing optical power calibration or LOS point setting using the received light. The ONU40 'is further configured to determine whether the test instruction is a preparation test instruction after receiving the light-free sequence, and if so, feed back reception confirmation information to the upper computer 10'.
In the embodiment of the present invention, the optical attenuator 30 ' is a programmable optical attenuator 30 ' or a fixed optical attenuator 30 ', and the fixed optical attenuator 30 ' is much cheaper than the programmable optical attenuator 30 ', which can greatly save the cost. If the optical attenuator 30 ' is a fixed optical attenuator 30 ', an optical switch connected to the optical module is preferably disposed in the light source board 20 ', one side of the optical switch is connected to the optical attenuator 30 ', the other side of the optical switch is directly connected to the ONU40 ' through an optical fiber, and the light source board 20 ' is further configured to control the optical attenuator 30 ' through controlling the optical switch, so as to finally achieve the purpose of adjusting the optical power.
With regard to the test systems in the fifth embodiment and the sixth embodiment, the specific manner in which each part performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.
In fifth embodiment, in sixth embodiment, the host computer does not utilize RJ45 or RS232 to directly link to each other with the ONU, can avoid because the cable has the unstable condition of test that ageing or contact failure caused, has promoted test efficiency. In addition, according to the method, the controller of the light source board provides high and low levels for the optical module sending enabling end of the light source board according to the preset rule so as to generate the light sequence representing the test instruction preparation, and the light sequence is sent to the ONU through the optical path of the optical attenuator to carry out test preparation, so that a new solution is provided for the existing test method.
EXAMPLE seven
Based on the same inventive concept, an embodiment of the present invention further provides an upper computer, as shown in fig. 7, including an instruction sending module 11, a first control module 12, and a second control module 13, where:
and the instruction sending module 11 is configured to send a test preparation instruction to the light source board to notify a controller of the light source board to provide a high-low level for a light module sending enable end of the light source board according to a preset rule to generate a light sequence representing the test preparation instruction and send the light sequence to the ONU through a light path of the optical attenuator to prepare for testing.
And the first control module 12 is used for controlling the light source board to continuously emit light.
And the second control module 13 is configured to control the optical attenuator through a circuit according to a preset rule, and provide light meeting a preset optical power for the ONU, so that the ONU performs optical power calibration or LOS point setting by using the received light.
Example eight
Based on the same inventive concept, an embodiment of the present invention further provides a light source board, as shown in fig. 8, including a controller 21 and a light module 22:
the controller 21 is used for receiving a test preparation instruction sent by the upper computer; providing high and low levels for an optical module sending enabling end of the light source board according to a preset rule to generate an optical sequence representing a test instruction preparation, and sending the optical sequence to the ONU for test preparation through an optical path of the optical attenuator; the optical attenuator is controlled through a circuit according to a preset rule, light meeting preset light power is provided for the ONU, and the ONU can conveniently carry out light power calibration or LOS point setting by utilizing the received light;
the optical module 22 is controlled by a host computer to continuously emit light.
With regard to the light source board in the seventh embodiment and the eighth embodiment, the specific manner in which each part performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.
Unless specifically stated otherwise, terms such as processing, computing, calculating, determining, displaying, or the like, may refer to an action and/or process of one or more processing or computing systems or similar devices that manipulates and transforms data represented as physical (e.g., electronic) quantities within the processing system's registers and memories into other data similarly represented as physical quantities within the processing system's memories, registers or other such information storage, transmission or display devices. Information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
It should be understood that the specific order or hierarchy of steps in the processes disclosed is an example of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not intended to be limited to the specific order or hierarchy presented.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. Of course, the processor and the storage medium may reside as discrete components in a user terminal.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in memory units and executed by processors. The memory unit may be implemented within the processor or external to the processor, in which case it can be communicatively coupled to the processor via various means as is known in the art.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
Claims (16)
1. A method for receiving and testing an optical module is characterized by comprising the following steps:
the upper computer sends a test preparation instruction to the light source board to inform a controller of the light source board to provide high and low levels for an optical module sending enabling end of the light source board according to a preset rule so as to generate a light sequence representing the test preparation instruction and send the light sequence to the ONU for test preparation through a light path of the optical attenuator;
the upper computer controls the light source board to continuously emit light;
the upper computer controls the optical attenuator through the circuit according to a preset rule, and provides light meeting preset light power for the ONU, so that the ONU performs light power calibration or LOS point setting by using the received light.
2. The receiving test method of claim 1, wherein before the upper computer controlling the light source board to continuously emit light, the method further comprises: and the upper computer receives the receiving confirmation information fed back by judging that the ONU is a ready test instruction after receiving the lightless sequence.
3. The reception test method according to claim 2, wherein the method for the ONU to determine whether it is a preparation test instruction after receiving the absence of the light sequence comprises: the ONU optical module converts the received light sequence into a level signal sequence, sends the level signal to the ONU controller through a signal loss alarm pin of the ONU optical module, and the ONU controller judges whether the received level signal sequence is matched with a preset value or not, and judges that the received level signal sequence is a ready-to-test instruction if the received level signal sequence is matched with the preset value.
4. The reception test method according to claim 2 or 3, wherein the method for the ONU to feed back the reception confirmation information to the upper computer comprises: the ONU controller converts an instruction signal which is stored in an MCU of the ONU optical module and represents reception confirmation information into a binary system, then provides high and low levels for a sending enabling end of the ONU optical module to generate a light sequence corresponding to the instruction, sends the light sequence to the light source board, and the light source board converts the received light sequence into electric information which represents the reception confirmation information and sends the electric information to the upper computer.
5. A method for receiving and testing an optical module is characterized by comprising the following steps:
the light source board receives a test preparation instruction sent by the upper computer;
the controller of the light source board provides high and low levels for an optical module sending enabling end of the light source board according to a preset rule to generate a light sequence representing a test instruction preparation, and the light sequence is sent to the ONU for test preparation through a light path of the optical attenuator;
the light source plate is controlled by the upper computer to continuously emit light;
the light source board controls the optical attenuator through a circuit according to a preset rule, and provides light meeting preset light power for the ONU, so that the ONU performs light power calibration or LOS point setting by using the received light.
6. The utility model provides a receiving test system of optical module which characterized in that, includes host computer, light source board, optical attenuator and ONU, wherein:
the upper computer is electrically connected with the light source board, the light source board is optically connected with the optical attenuator, the optical attenuator is optically connected with the ONU, and the upper computer is electrically connected with the optical attenuator;
the upper computer is used for sending a test preparation instruction to the light source board and controlling the light source board to continuously emit light; the upper computer is also used for controlling the optical attenuator through a circuit according to a preset rule and providing light meeting preset optical power for the ONU;
the optical module testing system comprises a light source board, a controller and an optical attenuator, wherein the light source board is used for providing high and low levels for an optical module sending enabling end of the light source board by the controller according to a preset rule so as to generate an optical sequence representing a testing instruction to be prepared, and the optical sequence is sent to an ONU (optical network unit) for testing preparation through an optical path of the optical attenuator; the light source board is also used for continuously emitting light after receiving the control of the upper computer;
the optical attenuator is used for receiving the circuit control of the upper computer and is used as an optical path channel between the light source board and the ONU;
and the ONU is used for receiving a light sequence representing the preparation test instruction from the light source board and carrying out optical power calibration or LOS point setting by using the received light.
7. The reception test system according to claim 6, wherein the light source board further comprises an optical switch connected to the optical module of the light source board, the optical attenuator is a fixed optical attenuator, one side of the optical switch is connected to the optical attenuator, the other side of the optical switch is directly connected to the ONU through an optical fiber, and the light source board is further configured to adjust optical power by controlling the optical switch.
8. The reception test system according to claim 6, wherein the ONU is further configured to determine whether the ONU is ready for testing after receiving the presence or absence of the optical sequence, and if so, feed back a reception confirmation message to the upper computer.
9. The reception testing system of claim 6, wherein the optical attenuator is a programmed optical attenuator.
10. The utility model provides a receiving test system of optical module which characterized in that, includes host computer, light source board, optical attenuator and ONU, wherein:
the upper computer is electrically connected with the light source board, the light source board is optically connected with the optical attenuator, the optical attenuator is optically connected with the ONU, and the light source board is also electrically connected with the optical attenuator;
the upper computer is used for sending a test preparation instruction to the light source board and controlling the light source board to continuously emit light;
the optical module testing system comprises a light source board, a controller and an optical attenuator, wherein the light source board is used for providing high and low levels for an optical module sending enabling end of the light source board by the controller according to a preset rule so as to generate an optical sequence representing a testing instruction to be prepared, and the optical sequence is sent to an ONU (optical network unit) for testing preparation through an optical path of the optical attenuator; the light source board is also used for continuously emitting light after being controlled by the upper computer; the light source board is also used for controlling the optical attenuator through a circuit according to a preset rule and providing light meeting preset optical power for the ONU;
the optical attenuator is used for receiving the circuit control of the light source board and is used as an optical path channel between the light source board and the ONU;
and the ONU is used for receiving a light sequence representing the preparation test instruction from the light source board and carrying out optical power calibration or LOS point setting by using the received light.
11. The reception testing system of claim 10, wherein the optical attenuator is a programmed optical attenuator.
12. The reception test system according to claim 10, wherein the ONU is further configured to determine whether the ONU is ready for testing after receiving the presence or absence of the optical sequence, and if so, feed back a reception confirmation message to the upper computer.
13. The reception test system according to claim 12, wherein the ONU is specifically configured to convert the received presence or absence of light sequence into a level signal sequence by using the ONU optical module, and send the level signal to the ONU controller through a signal loss alarm pin of the ONU optical module, and the ONU controller determines whether the received level signal sequence matches a preset value, and determines that the received level signal sequence is a ready test instruction if the received level signal sequence matches the preset value.
14. The reception test system according to claim 12, wherein the ONU is specifically configured to convert, by the ONU controller, the instruction signal representing the reception confirmation information stored in the MCU of the ONU optical module into a binary signal, then provide a high-low level to the transmission enable terminal of the ONU optical module to generate a light-and-dark sequence corresponding to the instruction, and transmit the light-and-dark sequence to the light source board, and the light source board is further configured to convert the received light-and-dark sequence into the electrical information representing the reception confirmation information, and transmit the electrical information to the upper computer.
15. The utility model provides an upper computer, its characterized in that includes instruction sending module, first control module, second control module, wherein:
the instruction sending module is used for sending a test preparation instruction to the light source board so as to inform a controller of the light source board to provide high and low levels for an optical module sending enabling end of the light source board according to a preset rule to generate a light sequence representing the test preparation instruction, and sending the light sequence to the ONU for test preparation through an optical path of the optical attenuator;
the first control module is used for controlling the light source plate to continuously emit light;
and the second control module is used for controlling the optical attenuator through a circuit according to a preset rule, and providing light meeting the preset light power for the ONU, so that the ONU performs light power calibration or LOS point setting by using the received light.
16. A light source board, comprising a controller, a light module:
the controller is used for receiving a test preparation instruction sent by the upper computer; providing high and low levels for an optical module sending enabling end of the light source board according to a preset rule to generate an optical sequence representing a test instruction preparation, and sending the optical sequence to the ONU for test preparation through an optical path of the optical attenuator; the optical attenuator is controlled through a circuit according to a preset rule, light meeting preset light power is provided for the ONU, and the ONU can conveniently carry out light power calibration or LOS point setting by utilizing the received light;
the optical module is used for receiving the control of the upper computer and continuously emitting light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811398323.5A CN109510662B (en) | 2018-11-22 | 2018-11-22 | Receiving test system and method of optical module, upper computer and light source board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811398323.5A CN109510662B (en) | 2018-11-22 | 2018-11-22 | Receiving test system and method of optical module, upper computer and light source board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109510662A CN109510662A (en) | 2019-03-22 |
| CN109510662B true CN109510662B (en) | 2020-04-17 |
Family
ID=65749641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811398323.5A Active CN109510662B (en) | 2018-11-22 | 2018-11-22 | Receiving test system and method of optical module, upper computer and light source board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109510662B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111722655B (en) * | 2020-08-04 | 2022-02-25 | 国家电网有限公司信息通信分公司 | Optical module debugging and testing system, optical module debugging and testing method and upper computer |
| CN112887019B (en) * | 2021-04-28 | 2021-07-30 | 武汉长光科技有限公司 | Method and device for testing optical receiver and computer storage medium |
| CN116155389B (en) * | 2023-02-28 | 2023-10-27 | 光彩芯辰(浙江)科技有限公司 | Optical module debugging system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04507485A (en) * | 1989-08-28 | 1992-12-24 | レイネット・コーポレイション | Test circuit for coupler verification |
| CN201509202U (en) * | 2009-10-26 | 2010-06-16 | 青岛海信宽带多媒体技术有限公司 | Calibration tool for optical module |
| CN105515648A (en) * | 2015-12-18 | 2016-04-20 | 成都广达新网科技股份有限公司 | BOSA ON BOARD ONU module parameter calibration platform and working method thereof |
| CN105577273A (en) * | 2016-03-07 | 2016-05-11 | 太仓市同维电子有限公司 | Method for testing ONU data forwarding function in batches |
| CN107306151A (en) * | 2017-02-14 | 2017-10-31 | 深圳市双翼科技股份有限公司 | A kind of calibration method and its device of BOB equipment |
-
2018
- 2018-11-22 CN CN201811398323.5A patent/CN109510662B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04507485A (en) * | 1989-08-28 | 1992-12-24 | レイネット・コーポレイション | Test circuit for coupler verification |
| CN201509202U (en) * | 2009-10-26 | 2010-06-16 | 青岛海信宽带多媒体技术有限公司 | Calibration tool for optical module |
| CN105515648A (en) * | 2015-12-18 | 2016-04-20 | 成都广达新网科技股份有限公司 | BOSA ON BOARD ONU module parameter calibration platform and working method thereof |
| CN105577273A (en) * | 2016-03-07 | 2016-05-11 | 太仓市同维电子有限公司 | Method for testing ONU data forwarding function in batches |
| CN107306151A (en) * | 2017-02-14 | 2017-10-31 | 深圳市双翼科技股份有限公司 | A kind of calibration method and its device of BOB equipment |
Non-Patent Citations (1)
| Title |
|---|
| 基于BOB技术光模块测试系统的研究和设计;柯坚;《中国优秀硕士学位论文全文数据库》;20150515(第（2015年）05期);第I136-195页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109510662A (en) | 2019-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109510662B (en) | Receiving test system and method of optical module, upper computer and light source board | |
| CN111028495B (en) | Method and device for calibrating electric energy meter based on low-power-consumption Bluetooth communication | |
| US8481911B2 (en) | System and method for connecting electrical devices using fiber optic serial communication | |
| CN103401605B (en) | Room temperature based on hot-pluggable optical module debugs system and room temperature adjustment method | |
| CN110298974A (en) | The charging module of mobile power source leased equipment and its data transmission method between mobile power source | |
| CN215897719U (en) | SIM card switching device and electronic equipment | |
| CN110113070A (en) | A kind of signal sending and receiving method suitable for USB | |
| US10389436B2 (en) | Communication device, communication system, and communication method | |
| CN103392303B (en) | Receiving end detection method, detection circuit, optical module and system | |
| CN200986583Y (en) | Railway signal ZPW-2000 equipment transmitter automatic detection device | |
| CN103759760B (en) | The method and apparatus of test | |
| CN101359965B (en) | Method and apparatus optimizing determination level of optical receiver | |
| CN104168067A (en) | Method for judging optical power signal intensity in optical receiving circuit and circuit thereof | |
| CN213715749U (en) | Integrated analyzer for transformer area | |
| US7626399B2 (en) | Broken lead detection | |
| CN216134552U (en) | Carrier communication coupling circuit and ammeter | |
| CN115118357A (en) | Fault detection method and device for transceiving component and storage medium | |
| CN113301547B (en) | Efficient communication method of low-power-consumption Bluetooth chip | |
| CN115421026A (en) | Aging test method, circuit and system for batch PD chips | |
| CN101447799A (en) | Knowledge method of connection status of antenna, controlling method of antenna switch, device and terminal thereof | |
| CN115567111A (en) | Communication terminal, system and method based on all-optical IP address | |
| CN213091849U (en) | Car light test system | |
| CN114531639A (en) | Testing system and method of multi-channel audio module | |
| CN102497189A (en) | Signal sampling method, controllable switch and device | |
| CN109155672A (en) | The method and system of passive optical network transmission optical signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |