CN103004108B - Luminous power detection method, device, equipment and optical module - Google Patents
Luminous power detection method, device, equipment and optical module Download PDFInfo
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- CN103004108B CN103004108B CN201280001479.XA CN201280001479A CN103004108B CN 103004108 B CN103004108 B CN 103004108B CN 201280001479 A CN201280001479 A CN 201280001479A CN 103004108 B CN103004108 B CN 103004108B
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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
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0775—Performance monitoring and measurement of transmission parameters
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Abstract
The invention discloses a kind of luminous power detection method, device, equipment and optical module, belong to communication network field.Described method comprises: receive detection signal; Process described detection signal, obtain specifying detection signal, the window of described appointment detection signal is for specifying duration; According to described appointment detection signal, the received optical power of optical module is detected.The present invention is when the detection signal that the equipment of receiving issues, directly do not control received optical power according to this detection signal to detect, but this detection signal is processed, obtain specifying detection signal, make optical module when carrying out received optical power and detecting, can be triggered by detection signal, but its end time specifically detected is by specifying the window of detection signal to limit, the received optical power of optical module is made to detect not by the impact of receiver uplink burst data bag size, decrease metrical error, improve the precision of detection.
Description
Technical field
The present invention relates to communication network field, particularly a kind of luminous power detection method, device, equipment and optical module.
Background technology
In practical service environment, by the receiving unit of opto-electronic conversion and transmitting portion and possess certain monitoring capacity department and independently become a module, make pluggable component application in PON (passiveopticalnetwork, EPON) OLT (opticallineterminal of system, optical line terminal) and ONU (opticalnetworkunit, optical network unit) in equipment, this part is claimed to be optical module, in the use procedure of optical module, as caused system business to interrupt because of optical module infringement, when system not power down, after the optical module of infringement is replaced with normal optical module, optical module recovers normal work, original system business will recover communication within the very short time, greatly reduce the maintenance cost of system.
Along with EPON (ethernetpassiveopticalnetwork, EPON based on Ethernet mode) and GPON (gigabitpassiveopticalnetwork, gigabit passive optical network) system use expanded range, in order to reduce operation and maintenance cost, more and more higher to the requirement of self measuring ability of optical module, this self measuring ability at least comprises received optical power detection etc.In the prior art, especially in GPON system, general employing current mirror sensed scheme, see Fig. 1, Fig. 1 is testing circuit schematic diagram of the prior art, in FIG, the operation of detection signal to testing circuit that the electronic switch be connected with operational amplifier issues according to equipment controls, the uplink burst data that this detection signal and optical module receive is relevant, and due to the time interval between uplink burst data very short, and long data packet is also different in size, the window of electronic switch is uncertain, cause optical module to the metrical error of received optical power close to +/-3dB, even exceed +/-3dB, metrical error is larger, accuracy of detection is not enough.
Summary of the invention
In order to solve the problem of prior art, embodiments provide a kind of luminous power detection method, device, equipment and optical module.Described technical scheme is as follows:
On the one hand, a kind of luminous power detection method, described method comprises:
Receive detection signal;
Process described detection signal, obtain specifying detection signal, the window of described appointment detection signal is for specifying duration;
According to described appointment detection signal, the received optical power of optical module is detected; Wherein, described detection signal is processed, obtains specifying detection signal, comprising:
Use the micro-control unit MCU of optical module that described detection signal is converted to appointment detection signal; Or,
Use and there is the circuit that time delay intercepts function, intercept from described detection signal and specify detection signal.
According to described appointment detection signal, the received optical power of optical module is detected, comprising:
Respond described appointment detection signal, in the window of described appointment detection signal, control optical module and carry out received optical power detection.
On the other hand, a kind of optical power detection apparatus, comprising:
Receiver module, for receiving detection signal;
Processing module, for processing described detection signal, obtains specifying detection signal, and the window of described appointment detection signal is for specifying duration;
Detection module, for according to described appointment detection signal, detects the received optical power of optical module;
Wherein, described detection signal is converted to appointment detection signal specifically for using the micro-control unit MCU of optical module by described processing module; Or, use and there is the circuit that time delay intercepts function, intercept from described detection signal and specify detection signal.
Described detection module, for responding described appointment detection signal, in the window of described appointment detection signal, controls optical module and carries out received optical power detection.
Another aspect, a kind of luminous power checkout equipment, comprising: optical-electrical converter, receiver, processor and testing circuit, described receiver and the coupling of described processor, described optical-electrical converter and the coupling of described testing circuit,
Optical-electrical converter, for carrying out opto-electronic conversion to the light signal received, exports the signal of telecommunication;
Receiver, for receiving detection signal;
Described processor, for processing described detection signal, obtains specifying detection signal, and the window of described appointment detection signal is for specifying duration;
Described testing circuit, for the signal of telecommunication exported according to described appointment detection signal and described optical-electrical converter, detects the received optical power of optical module;
Wherein, described processor is the micro-control unit of optical module, or described processor is that time delay intercepts circuit.
Described testing circuit comprises the electronic switch for controlling testing circuit work, and described processor is coupled with described electronic switch;
Described electronic switch responds described appointment detection signal, in the window of described appointment detection signal, controls optical module and carries out received optical power detection.
A kind of optical module, described optical module comprises: transceiver, for receiving optical signals, exports the signal of telecommunication; Described transceiver is also for sending the signal of telecommunication; Described optical module comprises luminous power checkout equipment as above.
A kind of luminous power detection method, device, equipment and optical module that the embodiment of the present invention provides, by receiving detection signal; Process described detection signal, obtain specifying detection signal, the window of described appointment detection signal is for specifying duration; According to described appointment detection signal, carry out received optical power detection.Adopt technical scheme of the present invention, when the detection signal that the equipment of receiving issues, directly do not control received optical power according to this detection signal to detect, but this detection signal is processed, obtain specifying detection signal, make optical module when carrying out received optical power and detecting, can be triggered by detection signal, but its end time specifically detected is by specifying the window of detection signal to limit, the received optical power of optical module is made to detect not by the impact of receiver uplink burst data bag length, decrease metrical error, improve the precision of detection.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is testing circuit schematic diagram of the prior art;
Fig. 2 is the flow chart of a kind of luminous power detection method that the embodiment of the present invention provides;
Fig. 3 a is the flow chart of a kind of luminous power detection method that the embodiment of the present invention provides;
A kind of luminous power testing circuit schematic diagram that Fig. 3 b provides for the embodiment of the present invention;
Fig. 3 c is the signal schematic representation that the embodiment of the present invention provides;
Fig. 4 a is the flow chart of a kind of luminous power detection method that the embodiment of the present invention provides;
A kind of luminous power testing circuit schematic diagram that Fig. 4 b provides for the embodiment of the present invention;
Fig. 4 c is the signal schematic representation that the embodiment of the present invention provides;
Fig. 5 is the structural representation of a kind of optical power detection apparatus that the embodiment of the present invention provides;
Fig. 6 is the structural representation of a kind of luminous power checkout equipment that the embodiment of the present invention provides;
Fig. 7 is the structural representation of a kind of optical module that the embodiment of the present invention provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Fig. 2 is the flow chart of a kind of luminous power detection method that the embodiment of the present invention provides.The executive agent of this embodiment is optical power detection apparatus, and see Fig. 2, this embodiment comprises:
201, detection signal is received;
In the present embodiment, optical module is a kind of pluggable equipment, and this pluggable equipment is positioned at receiver side, and this detection signal when needing the luminous intensity detecting uplink burst signal, can issue sense command, triggers OLT device and issues detection signal.
Particularly, this detection signal is curtage signal.
202, process described detection signal, obtain specifying detection signal, the window of described appointment detection signal is for specifying duration;
In embodiments of the present invention, limit appointment detection signal, its window is for specifying duration, and this appointment duration is required to arrange according to receiver performance or accuracy of detection by technical staff, preferably, this appointment duration is less than the length of the packet that receiver may receive.
203, according to described appointment detection signal, the received optical power of optical module is detected.
In the present embodiment, the received optical power test of optical module is triggered by appointment detection signal, and continues in the window of specifying detection signal, when specifying the window duration of detection signal to arrive, terminating received optical power and detecting.
A kind of luminous power detection method that the embodiment of the present invention provides, by receiving detection signal; Process described detection signal, obtain specifying detection signal, the window of described appointment detection signal is for specifying duration; According to described appointment detection signal, the received optical power of optical module is detected.Adopt technical scheme of the present invention, when the detection signal that the equipment of receiving issues, directly do not control received optical power according to this detection signal to detect, but this detection signal is processed, obtain specifying detection signal, make optical module when carrying out received optical power and detecting, can be triggered by detection signal, but its end time specifically detected is by specifying the window of detection signal to limit, the received optical power of optical module is made to detect not by the impact of receiver uplink burst data bag size, decrease metrical error, improve the precision of detection.
Alternatively, on the basis of technical scheme embodiment illustrated in fig. 2, described step 202 " processes described detection signal, obtains specifying detection signal; the window of described appointment detection signal is for specifying duration ", comprises (1) or (2):
(1) use the MCU (MicroControlUnit, micro-control unit) of optical module that described detection signal is converted to appointment detection signal, the window of described appointment detection signal is for specifying duration;
Those skilled in the art can be known, optical module comprises MCU, and this MCU is used for the monitoring management of module by signal information.
And in the present embodiment, optical module is when receiving detection signal, detection signal is inputed to MCU, and when MCU receives this detection signal, utilize the function switching signal of MCU, detection signal is converted to appointment detection signal, that is to say and specify the rising edge of detection signal to be triggered by the rising edge of detection signal, the rising edge of this appointment detection signal and the rising edge of detection signal are put at one time, and the window between the trailing edge of this appointment detection signal and rising edge is for specify duration, this appointment duration is less than the window between the rising edge of detection signal and trailing edge.
A kind of luminous power detection method that the embodiment of the present invention provides, by receiving detection signal; Use the MCU (MicroControlUnit, micro-control unit) of optical module that described detection signal is converted to appointment detection signal, the window of described appointment detection signal is for specifying duration; According to described appointment detection signal, the received optical power of optical module is detected.Adopt technical scheme of the present invention, when the detection signal that the equipment of receiving issues, directly do not control received optical power according to this detection signal to detect, but this detection signal is processed, obtain specifying detection signal, make optical module when carrying out received optical power and detecting, can be triggered by detection signal, but its end time specifically detected is by specifying the window of detection signal to limit, the received optical power of optical module is made to detect not by the impact of receiver uplink burst data bag length, decrease metrical error, improve the precision of detection.
(2) use the circuit with time delay intercepting function, intercept and specify detection signal from described detection signal, the window of described appointment detection signal is for specifying duration.
In the present embodiment, increase one in optical module newly and there is the circuit that time delay intercepts function, and when receiving detection signal, detection signal is inputed to this and there is the circuit that time delay intercepts function, and when the circuit with time delay intercepting function receives this detection signal, detection signal is intercepted, obtain specifying detection signal, that is to say and specify the rising edge of detection signal to be triggered by the rising edge of detection signal, the rising edge of this appointment detection signal and the rising edge of detection signal are put at one time, and the window between the trailing edge of this appointment detection signal and rising edge is for specify duration, this appointment duration is less than the window between the rising edge of detection signal and trailing edge.
Those skilled in the art can be known, this concrete formation with the circuit of time delay intercepting function can have multiple, does not repeat in the present embodiment.
A kind of received optical power detection method for optical module that the embodiment of the present invention provides, by receiving detection signal; Use and have the circuit that time delay intercepts function, intercept and specify detection signal from described detection signal, the window of described appointment detection signal is for specifying duration; According to described appointment detection signal, the received optical power of optical module is detected.Adopt technical scheme of the present invention, when the detection signal that the equipment of receiving issues, directly do not control received optical power according to this detection signal to detect, but this detection signal is processed, obtain specifying detection signal, make optical module when carrying out received optical power and detecting, can be triggered by detection signal, but its end time specifically detected is by specifying the window of detection signal to limit, the received optical power of optical module is made to detect not by the impact of receiver uplink burst data bag length, decrease metrical error, improve the precision of detection.
Alternatively, on the basis of technical scheme embodiment illustrated in fig. 2, described step 203 " according to described appointment detection signal; detect the received optical power of optical module ", specifically comprise: respond described appointment detection signal, in the window of described appointment detection signal, control optical module and carry out received optical power detection.
When getting appointment detection signal, optical module starts to carry out received optical power detection at the rising edge of appointment detection signal, terminates received optical power detect specifying the trailing edge of detection signal.
Fig. 3 a is the flow chart of a kind of luminous power detection method that the embodiment of the present invention provides.See Fig. 3 a, this embodiment is in conjunction with embodiment illustrated in fig. 2, and be described in detail the received optical power detection method of the optical module be arranged in OLT device, see Fig. 3 a, the method specifically comprises:
301, ONU equipment is according to the instruction of OLT device, in the ascending time slot distributed, send light signal;
302, OLT device is in the ascending time slot of this ONU, to the optical module output detection signal of OLT device;
In the prior art, this detection signal is used to indicate the optical module unlatching received optical power detection RSSI function of OLT device;
303, detection signal is inputed to the MCU of optical module by optical module;
304, described detection signal is converted to appointment detection signal by MCU, appointment detection signal is exported in optical module the electronic switch being used for controlling received optical power detection, and the window of described appointment detection signal is for specifying duration;
305, the electronic switch detected for controlling received optical power in optical module responds the rising edge of this appointment detection signal, conducting the circuit keeping received optical power to detect;
306, duration T1 is specified in MCU time delay, when arriving appointment duration T1, produces the trailing edge of specifying detection signal;
307, the electronic switch detected for controlling received optical power in optical module responds the trailing edge of this appointment detection signal, closes the circuit that received optical power detects;
308, the digital quantity that the analog quantity that sampling hold circuit obtains sampling between received optical power detection period converts to, obtains RSSI data, is kept in corresponding storage area, in order to reading;
309, the RSSI data of OLT device reading and saving, obtain the received optical power of optical module.
For this embodiment, its circuit structure can see Fig. 3 b, a kind of received optical power testing circuit schematic diagram that this Fig. 3 b provides for the embodiment of the present invention.In fig 3b, this received optical power testing circuit comprises optical-electrical converter, current mirror, operational amplifier (referred to as amplifier in figure), electronic switch, holding capacitor, MCU and analog to digital converter.Wherein, current mirror has two output channels, is respectively main channel and subchannel, this main channel output current to the optical-electrical converter of optical module (as avalanche photodide) provider to working bias voltage, this subchannel sends into received optical power checkout equipment, for monitor current intensity.MCU receives the detection signal that OLT issues, and changes detection signal, obtains specifying detection signal.See Fig. 3 c, this Fig. 3 c is the signal schematic representation that the embodiment of the present invention provides.Input optical signal refers to the light signal that OLT receives, and the OLT receiver side signal of telecommunication refers to the signal of telecommunication that the light signal that OLT receives obtains through opto-electronic conversion, this OLT receiver side signal of telecommunication detection trigger signal, shown in the histogram of window the 3rd row as upper in Fig. 3 c of detection signal, the histogram that Fig. 3 c the upper 4th arranges then is through the appointment detection signal that MCU process obtains, at the rising edge of this appointment detection signal, electronic switch responds this appointment detection signal and conducting luminous power testing circuit, this luminous power testing circuit is detected, and when the trailing edge of this appointment detection signal, this electronic switch cuts out and disconnects luminous power testing circuit, make this luminous power testing circuit detection of end.And last feedback of arranging in Fig. 3 c refers to that this optical module reports the timeliness detecting the RSSI data obtained to equipment, owing to need carry out analog-to-digital conversion to the detection of received optical power and preserve, then need to carry out certain time delay to reporting, then at T
pafter time, the RSSI data of this optical module reading and saving, and RSSI data are reported OLT device.
A kind of luminous power detection method that the embodiment of the present invention provides, by receiving detection signal; Use the MCU (MicroControlUnit, micro-control unit) of optical module that described detection signal is converted to appointment detection signal, the window of described appointment detection signal is for specifying duration; According to described appointment detection signal, the received optical power of optical module is detected.Adopt technical scheme of the present invention, when the detection signal that the equipment of receiving issues, directly do not control received optical power according to this detection signal to detect, but this detection signal is processed, obtain specifying detection signal, make optical module when carrying out received optical power and detecting, can be triggered by detection signal, but its end time specifically detected is by specifying the window of detection signal to limit, the received optical power of optical module is made to detect not by the impact of receiver uplink burst data bag length, decrease metrical error, improve the precision of detection.
Fig. 4 a is the flow chart of a kind of luminous power detection method that the embodiment of the present invention provides.See Fig. 4 a, this embodiment is in conjunction with embodiment illustrated in fig. 2, and be described in detail the received optical power detection method of the optical module be arranged in OLT device, see Fig. 4 a, the method specifically comprises:
401, ONU equipment is according to the instruction of OLT device, in the ascending time slot distributed, send light signal;
402, OLT device is in the ascending time slot of this ONU, to the optical module output detection signal of OLT device;
In the prior art, this detection signal is used to indicate the optical module unlatching received optical power detection RSSI function of OLT device.
403, detection signal is inputed to the time delay cut off circuit of optical module by optical module;
404, start the circuit with time delay intercepting function, produce the rising edge of specifying detection signal, the window of described appointment detection signal is for specifying duration;
405, the electronic switch detected for controlling received optical power in optical module responds the rising edge of this appointment detection signal, conducting the circuit keeping received optical power to detect;
406, there is the circuit delay appointment duration T1 that time delay intercepts function, when arriving appointment duration T1, producing the trailing edge of specifying detection signal;
407, the electronic switch detected for controlling received optical power in optical module responds the trailing edge of this appointment detection signal, closes the circuit that received optical power detects;
408, the digital quantity that the analog quantity that sampling hold circuit obtains sampling between received optical power detection period converts to, obtains RSSI data, is kept in corresponding storage area, in order to reading;
409, the RSSI data of OLT device reading and saving, obtain the received optical power of optical module.
For this embodiment, its circuit structure can see Fig. 4 b, a kind of received optical power testing circuit schematic diagram that this Fig. 4 b provides for the embodiment of the present invention.In fig. 4b, this received optical power testing circuit comprises optical-electrical converter, current mirror, operational amplifier, electronic switch, holding capacitor, time delay cut off circuit and analog to digital converter.MCU receives the detection signal that OLT issues, and changes detection signal, obtains specifying detection signal.See Fig. 4 c, this Fig. 4 c is the signal schematic representation that the embodiment of the present invention provides.Input optical signal refers to the light signal that OLT receives, and the OLT receiver side signal of telecommunication refers to the signal of telecommunication that the light signal that OLT receives obtains through opto-electronic conversion, this OLT receiver side signal of telecommunication detection trigger signal, shown in the histogram of window the 3rd row as upper in Fig. 4 c of detection signal, the histogram of upper 4th row of Fig. 4 c is then through time delay cut off circuit to carry out time delay and blocks the appointment detection signal obtained, at the rising edge of this appointment detection signal, electronic switch responds this appointment detection signal and conducting luminous power testing circuit, this luminous power testing circuit is detected, and when the trailing edge of this appointment detection signal, this electronic switch cuts out and disconnects luminous power testing circuit, make this luminous power testing circuit detection of end.And last feedback of arranging in Fig. 4 c refers to that this optical module reports the timeliness detecting the RSSI data obtained to equipment, owing to need carry out analog-to-digital conversion to the detection of received optical power and preserve, then need to carry out certain time delay to reporting, then at T
pafter time, the RSSI data of this optical module reading and saving, and RSSI data are reported OLT device.
A kind of received optical power detection method for optical module that the embodiment of the present invention provides, by receiving detection signal; Use and have the circuit that time delay intercepts function, intercept and specify detection signal from described detection signal, the window of described appointment detection signal is for specifying duration; According to described appointment detection signal, the received optical power of optical module is detected.Adopt technical scheme of the present invention, when the detection signal that the equipment of receiving issues, directly do not control received optical power according to this detection signal to detect, but this detection signal is processed, obtain specifying detection signal, make optical module when carrying out received optical power and detecting, can be triggered by detection signal, but its end time specifically detected is by specifying the window of detection signal to limit, the received optical power of optical module is made to detect not by the impact of receiver uplink burst data bag size, decrease metrical error, improve the precision of detection.
Fig. 5 is the structural representation of a kind of optical power detection apparatus that the embodiment of the present invention provides.See Fig. 5, this device comprises: receiver module 51, processing module 52 and detection module 53,
Receiver module 51, for receiving detection signal;
This detection signal when needing the luminous intensity detecting uplink burst signal, can issue sense command, triggers OLT device and issues detection signal.
Particularly, this detection signal is curtage signal.
Processing module 52, for processing described detection signal, obtains specifying detection signal, and the window of described appointment detection signal is for specifying duration;
In embodiments of the present invention, limit appointment detection signal, its window is for specifying duration, and this appointment duration is required to arrange according to receiver performance or accuracy of detection by technical staff, preferably, this appointment duration is less than the length of the packet that receiver may receive.
Detection module 53, for according to described appointment detection signal, detects the received optical power of optical module.
In the present embodiment, the detection of detection module 53 triggers by specifying detection signal, and continues in the window of specifying detection signal, when specifying the window duration of detection signal to arrive, terminating received optical power and detecting.
Alternatively, described detection signal is converted to appointment detection signal specifically for using the micro-control unit MCU of optical module by described processing module 52, and the window of described appointment detection signal is for specifying duration; Those skilled in the art can be known, optical module comprises MCU, and this MCU is used for the monitoring management of module by signal information.And in the present embodiment, processing module 52 is when receiving detection signal, detection signal is inputed to MCU, and when MCU receives this detection signal, utilize the function switching signal of MCU, detection signal is converted to appointment detection signal, that is to say and specify the rising edge of detection signal to be triggered by the rising edge of detection signal, the rising edge of this appointment detection signal and the rising edge of detection signal are put at one time, and the window between the trailing edge of this appointment detection signal and rising edge is for specify duration, this appointment duration is less than the window between the rising edge of detection signal and trailing edge.
Or described processing module 52 has specifically for using the circuit that time delay intercepts function, intercepts and specify detection signal from described detection signal, the window of described appointment detection signal is for specifying duration.In the present embodiment, increase one in optical module newly and there is the circuit that time delay intercepts function, and when processing module 52 receives detection signal, detection signal is inputed to this and there is the circuit that time delay intercepts function, and when the circuit with time delay intercepting function receives this detection signal, detection signal is intercepted, obtain specifying detection signal, that is to say and specify the rising edge of detection signal to be triggered by the rising edge of detection signal, the rising edge of this appointment detection signal and the rising edge of detection signal are put at one time, and the window between the trailing edge of this appointment detection signal and rising edge is for specify duration, this appointment duration is less than the window between the rising edge of detection signal and trailing edge.
Alternatively, described detection module 53, for responding described appointment detection signal, in the window of described appointment detection signal, controls optical module and carries out received optical power detection.When getting appointment detection signal, detection module 53 starts to carry out received optical power detection at the rising edge of appointment detection signal, terminates received optical power detect specifying the trailing edge of detection signal.
It should be noted that: the optical power detection apparatus that above-described embodiment provides is when received optical power detects, only be illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, internal structure by equipment is divided into different functional modules, to complete all or part of function described above.In addition, the received optical power checkout gear that above-described embodiment provides and received optical power detection method embodiment belong to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
A kind of optical power detection apparatus that the embodiment of the present invention provides, by receiving detection signal; Use and have the circuit that time delay intercepts function, intercept and specify detection signal from described detection signal, the window of described appointment detection signal is for specifying duration; According to described appointment detection signal, the received optical power of optical module is detected.Adopt technical scheme of the present invention, when the detection signal that the equipment of receiving issues, directly do not control received optical power according to this detection signal to detect, but this detection signal is processed, obtain specifying detection signal, make optical module when carrying out received optical power and detecting, can be triggered by detection signal, but its end time specifically detected is by specifying the window of detection signal to limit, the received optical power of optical module is made to detect not by the impact of receiver uplink burst data bag size, decrease metrical error, improve the precision of detection.
Fig. 6 is the structural representation of a kind of luminous power checkout equipment that the embodiment of the present invention provides.See Fig. 6, this equipment comprises: optical-electrical converter 60, receiver 61, processor 62 and testing circuit 63, and described receiver 61 and described processor 62 are coupled, and described optical-electrical converter 60 and described testing circuit 63 are coupled,
Optical-electrical converter 60, for carrying out opto-electronic conversion to the light signal received, exports the signal of telecommunication;
Receiver 61, for receiving detection signal; This detection signal when needing the luminous intensity detecting uplink burst signal, can issue sense command, triggers OLT device and issues detection signal.Particularly, this detection signal is curtage signal.
Described processor 62, for processing described detection signal, obtains specifying detection signal, and the window of described appointment detection signal is for specifying duration; In embodiments of the present invention, limit appointment detection signal, its window is for specifying duration, and this appointment duration is required to arrange according to receiver performance or accuracy of detection by technical staff, preferably, this appointment duration is less than the length of the packet that receiver may receive.
This testing circuit 63, for the signal of telecommunication exported according to described appointment detection signal and described optical-electrical converter 60, detects the received optical power of optical module.
In the present embodiment, the detection of testing circuit 63 triggers by specifying detection signal, and continues in the window of specifying detection signal, when specifying the window duration of detection signal to arrive, terminating received optical power and detecting.
Described processor 62 is the micro-control unit of optical module, or described processor is that time delay intercepts circuit.
Those skilled in the art can be known, optical module comprises MCU, and this MCU is used for the monitoring management of module by signal information.And in the present embodiment, processor 62 is when receiving detection signal, detection signal is inputed to MCU, and when MCU receives this detection signal, utilize the function switching signal of MCU, detection signal is converted to appointment detection signal, that is to say and specify the rising edge of detection signal to be triggered by the rising edge of detection signal, the rising edge of this appointment detection signal and the rising edge of detection signal are put at one time, and the window between the trailing edge of this appointment detection signal and rising edge is for specify duration, this appointment duration is less than the window between the rising edge of detection signal and trailing edge.
In the present embodiment, increase one in optical module newly and there is the circuit that time delay intercepts function, and when processor 62 receives detection signal, detection signal is inputed to this and there is the circuit that time delay intercepts function, and when the circuit with time delay intercepting function receives this detection signal, detection signal is intercepted, obtain specifying detection signal, that is to say and specify the rising edge of detection signal to be triggered by the rising edge of detection signal, the rising edge of this appointment detection signal and the rising edge of detection signal are put at one time, and the window between the trailing edge of this appointment detection signal and rising edge is for specify duration, this appointment duration is less than the window between the rising edge of detection signal and trailing edge.
Described testing circuit 63 comprises the electronic switch for controlling testing circuit work, and described processor is coupled with described electronic switch; Described electronic switch responds described appointment detection signal, in the window of described appointment detection signal, controls optical module and carries out received optical power detection.When getting appointment detection signal, electronic switch responds this appointment detection signal to carry out conducting and blocks, making testing circuit 63 conducting carry out received optical power detection when specifying the rising edge of detection signal to start, closing specifying the trailing edge of detection signal and terminating received optical power detection.
A kind of luminous power checkout equipment that the embodiment of the present invention provides, by receiving detection signal; Use and have the circuit that time delay intercepts function, intercept and specify detection signal from described detection signal, the window of described appointment detection signal is for specifying duration; According to described appointment detection signal, the received optical power of optical module is detected.Adopt technical scheme of the present invention, when the detection signal that the equipment of receiving issues, directly do not control received optical power according to this detection signal to detect, but this detection signal is processed, obtain specifying detection signal, make optical module when carrying out received optical power and detecting, can be triggered by detection signal, but its end time specifically detected is by specifying the window of detection signal to limit, the received optical power of optical module is made to detect not by the impact of receiver uplink burst data bag size, decrease metrical error, improve the precision of detection.
Fig. 7 is the structural representation of a kind of optical module that the embodiment of the present invention provides.See Fig. 7, described optical module comprises: transceiver 71, for receiving optical signals, exports the signal of telecommunication; It is characterized in that, described optical module comprises above-mentioned luminous power checkout equipment 72.
A kind of optical module that the embodiment of the present invention provides, by receiving detection signal; Use and have the circuit that time delay intercepts function, intercept and specify detection signal from described detection signal, the window of described appointment detection signal is for specifying duration; According to described appointment detection signal, the received optical power of optical module is detected.Adopt technical scheme of the present invention, when the detection signal that the equipment of receiving issues, directly do not control received optical power according to this detection signal to detect, but this detection signal is processed, obtain specifying detection signal, make optical module when carrying out received optical power and detecting, can be triggered by detection signal, but its end time specifically detected is by specifying the window of detection signal to limit, the received optical power of optical module is made to detect not by the impact of receiver uplink burst data bag size, decrease metrical error, improve the precision of detection.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a luminous power detection method, is characterized in that, described method comprises:
Receive detection signal;
Process described detection signal, obtain specifying detection signal, the window of described appointment detection signal is for specifying duration;
According to described appointment detection signal, the received optical power of optical module is detected;
Wherein, described described detection signal to be processed, obtains specifying detection signal, comprising:
Use the micro-control unit MCU of optical module that described detection signal is converted to appointment detection signal; Or,
Use and there is the circuit that time delay intercepts function, intercept from described detection signal and specify detection signal.
2. method according to claim 1, is characterized in that, according to described appointment detection signal, detects, comprising the received optical power of optical module:
Respond described appointment detection signal, in the window of described appointment detection signal, control optical module and carry out received optical power detection.
3. an optical power detection apparatus, is characterized in that, comprising:
Receiver module, for receiving detection signal;
Processing module, for processing described detection signal, obtains specifying detection signal, and the window of described appointment detection signal is for specifying duration;
Detection module, for according to described appointment detection signal, detects the received optical power of optical module;
Wherein, described detection signal is converted to appointment detection signal specifically for using the micro-control unit MCU of optical module by described processing module; Or, use and there is the circuit that time delay intercepts function, intercept from described detection signal and specify detection signal.
4. device according to claim 3, is characterized in that, described detection module, for responding described appointment detection signal, in the window of described appointment detection signal, controls optical module and carries out received optical power detection.
5. a luminous power checkout equipment, is characterized in that, comprising: optical-electrical converter, receiver, processor and testing circuit, described receiver and the coupling of described processor, described optical-electrical converter and the coupling of described testing circuit,
Optical-electrical converter, for carrying out opto-electronic conversion to the light signal received, exports the signal of telecommunication;
Receiver, for receiving detection signal;
Described processor, for processing described detection signal, obtains specifying detection signal, and the window of described appointment detection signal is for specifying duration;
Described testing circuit, for the signal of telecommunication exported according to described appointment detection signal and described optical-electrical converter, detects the received optical power of optical module;
Wherein, described processor is micro-control unit or the time delay intercepting circuit of optical module.
6. equipment according to claim 5, is characterized in that, described testing circuit comprises the electronic switch for controlling testing circuit work, and described processor is coupled with described electronic switch;
Described electronic switch responds described appointment detection signal, in the window of described appointment detection signal, controls optical module and carries out received optical power detection.
7. an optical module, described optical module comprises: transceiver, for receiving optical signals, exports the signal of telecommunication; It is characterized in that, described optical module comprises the luminous power checkout equipment described in any one of the claims 5-6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/081333 WO2014040255A1 (en) | 2012-09-13 | 2012-09-13 | Optical power detection method, apparatus and device, and optical module |
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| CN103004108A CN103004108A (en) | 2013-03-27 |
| CN103004108B true CN103004108B (en) | 2015-12-09 |
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| WO2015100520A1 (en) * | 2013-12-30 | 2015-07-09 | 华为技术有限公司 | Uplink optical signal power detecting method, device, optical line terminal and optical network system |
| CN108183745A (en) * | 2017-12-30 | 2018-06-19 | 武汉凌科通光电科技有限公司 | Photoelectric converter series-operation detection method and system |
| CN108173593A (en) * | 2017-12-30 | 2018-06-15 | 武汉凌科通光电科技有限公司 | Photoelectric converter integrated testing method and system |
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| JP5169522B2 (en) * | 2008-06-19 | 2013-03-27 | 住友電気工業株式会社 | Burst signal receiving apparatus and receiving method, and PON system using the receiving apparatus |
| CN101594184B (en) * | 2009-06-11 | 2012-04-11 | 青岛海信宽带多媒体技术有限公司 | Optical line terminal |
| CN102025417A (en) * | 2009-09-21 | 2011-04-20 | 华为技术有限公司 | Optical power detection method, equipment and system for passive optical network |
| CN102130720B (en) * | 2010-12-03 | 2014-11-05 | 华为技术有限公司 | Method and device for detecting optical power of passive optical network (PON) and PON system |
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- 2012-09-13 WO PCT/CN2012/081333 patent/WO2014040255A1/en active Application Filing
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| CN1226147A (en) * | 1996-10-30 | 1999-08-18 | 福托金公司 | Method for inproving selectivity in photo-activation and detection of molecular diagnosis agents |
| CN1658305A (en) * | 2004-02-19 | 2005-08-24 | 联发科技股份有限公司 | Signal processing method and apparatus for high speed optical storage device |
| CN102427388A (en) * | 2011-12-08 | 2012-04-25 | 深圳市共进电子股份有限公司 | Reset current compensation type sudden receiving optical power monitor |
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| CN103004108A (en) | 2013-03-27 |
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