CN105915280A - Simulation signal optical fiber communication system with hot backup and use method thereof - Google Patents
Simulation signal optical fiber communication system with hot backup and use method thereof Download PDFInfo
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- CN105915280A CN105915280A CN201610526588.3A CN201610526588A CN105915280A CN 105915280 A CN105915280 A CN 105915280A CN 201610526588 A CN201610526588 A CN 201610526588A CN 105915280 A CN105915280 A CN 105915280A
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- analogue signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
- H04B1/745—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus using by-passing or self-healing methods
-
- 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
- H04B10/03—Arrangements for fault recovery
- H04B10/038—Arrangements for fault recovery using bypasses
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Abstract
The invention relates to a simulation signal optical fiber communication system with hot backup and a use method thereof. An optical transmitter of the system comprises one electric signal power divider and two optical transmitting modules, or comprises one optical transmitting module and one optical divider; and a receiver comprises two optical receiving modules, an AD module, a microprocessor and one microwave switch, or comprises one optical switch, one optical receiving module, an AD module and a microprocessor. The use method comprises the following steps: the optical transmitter inputs one path of simulation signal and outputs two paths of optical signals, the microprocessor of the optical receiver monitors the receiving optical power of the current optical receiving module according to the threshold of the lowest optical power value of reliable communication, switches the microwave switch or the optical switch, and selects one of the two optical signals with receiving optical power greater than or equal to the threshold value as a simulation signal for output. The system can be manually switched due to allocation of a display screen. The system can automatically produce a hot backup optical signal, and can select one path with normal transmission according to the receiving power, thus effectively ensuring communication reliability and stability.
Description
Technical field
The present invention relates to Fibre Optical Communication Technology, be specifically related to a kind of analogue signal optical fiber with Hot Spare and lead to
Communication system and using method thereof.
Background technology
Analogue signal optical fiber transmission technique is integrated with optical fiber technology and high-frequency electric wave technology, utilizes each of which
Advantage achieve the wire transmission of Large Copacity, low cost, distance.The optic communication of analogue signal and nothing
Line radio wave communication is compared and is had many good qualities, and the first optic communication of analogue signal has a widest bandwidth, therefore its
Message capacity is the biggest；Secondly because optical signal frequency is the highest, directivity is very strong, it is difficult to disturbed and cuts
Obtain, so the optic communication of analogue signal has the strongest capacity of resisting disturbance and confidentiality.
Because the optic communication of analogue signal has the biggest message capacity, thus just to the reliability of optic communication and
Stability requirement is the highest.But existing analog optical fiber communication system has many reasons to affect the reliable of system
The connecting end surface of the joint of property and stability, such as optical fiber has dust, loose contact, fiber bending radius
Too small grade all can cause loss excessive, causes analogue signal optical fiber telecommunications system normally to work.Only
Solving the reliability and stability problem of analogue signal optical fiber telecommunications system, this system just can be put to actual making
With.
Summary of the invention
It is an object of the invention to provide a kind of analogue signal optical fiber telecommunications system with Hot Spare, its light is sent out
Analogue signal is modulated to two ways of optical signals and sends through 2 road optical fiber by machine of penetrating, and its photoreceiver receives two-way light
Signal, is demodulated into analogue signal, and selects a road as output by photoswitch or microwave switch.
It is a further object of the present invention to provide making of a kind of analogue signal optical fiber telecommunications system with Hot Spare
By method, optical sender is produced two ways of optical signals by the road analogue signal inputted, is sent out by two-way optical fiber
Deliver to photoreceiver, photoreceiver manually pattern or automatic mode operating optical switches or microwave switch,
Received optical power is selected more than arranging a road of threshold value as output, when wherein from the two paths of signals received
One tunnel optical signal transmission failure or luminous power less than the threshold value set, another road optical signal as Hot Spare,
Can ensure that the success that signal transmits, stability and the reliability of whole system are improved 2 times.
A kind of analogue signal optical fiber telecommunications system with Hot Spare of present invention design, connects including optical fiber
Optical sender and photoreceiver, optical sender includes the light emission mould that analogue signal is modulated to optical signal
Block, described photoreceiver includes that by optical signal demodulation be the Optical Receivers of analogue signal, the light of the present invention
Transmitter includes a signal of telecommunication power splitter and two identical light emission modules, a road simulation letter of input
Number access signal of telecommunication power splitter be divided into two-way analogue signal, be respectively connected to two light emission modules, two light
The outfan of transmitter module respectively connects a Transmission Fibers；Or described optical sender includes a light emission
Module and an optical branching device, analogue signal accesses light emission module, and the outfan of light emission module accesses
Optical branching device is divided into two ways of optical signals, and the outfan of optical branching device respectively connects a Transmission Fibers.
The photoreceiver of the present invention includes two Optical Receivers, two analog-to-digital conversion modules, micro-places
Reason device and a microwave switch, two Transmission Fibers are respectively connected to two Optical Receivers, each light-receiving
The analogue signal of module demodulation gained accesses microwave switch, and microwave switch is output as native system and finally exports
Analogue signal, the voltage of the connect sample resistance of photo-detector in two Optical Receivers is respectively through modulus
Modular converter connects microprocessor, and the output of microprocessor connects microwave switch, and microprocessor is by judging
The received optical power of two Optical Receivers of monitoring during the fructufy of analog digital conversion, and according to Optical Receivers
Current received optical power information control microwave switch.Or, described photoreceiver include a photoswitch,
One Optical Receivers, an analog-to-digital conversion module and a microprocessor, two Transmission Fibers access light
Switch, the output of photoswitch connects Optical Receivers, and Optical Receivers is output as what native system finally exported
Analogue signal, the voltage of the connect sample resistance of photo-detector in Optical Receivers connects micro-through analog digital conversion
Processor, the output of microprocessor connects photoswitch, and microprocessor is by judging the fructufy of analog digital conversion
Time monitoring Optical Receivers received optical power information, and according to current received optical power information control light open
Close.
Described microprocessor is furnished with display screen, display screen show current received optical power value and microwave switch or
The current state of person's photoswitch.
The using method of a kind of analogue signal optical fiber telecommunications system with Hot Spare of present invention design is,
One tunnel analogue signal is modulated to two ways of optical signals by optical sender, is simultaneously sent to receiving terminal.Photoreceiver
Receive two ways of optical signals, be analogue signal by optical signal demodulation, detect two paths of signals through microprocessor simultaneously
Received optical power, microprocessor storage arrange threshold value, this threshold value is reliably led to for realizing this communication system
The minimum optical power value of letter；Received optical power value is selected more than or equal to setting in the two ways of optical signals received
Put a road of threshold value as output.
When optical sender includes a signal of telecommunication power splitter and two light emission modules, a road simulation of input
Signal is divided into two-way analogue signal through signal of telecommunication power splitter, is respectively connected to two light emission modules, light emission
Analogue signal is modulated to optical signal by module, and two ways of optical signals is sent to receiving terminal through two Transmission Fibers.
When optical sender includes a light emission module and an optical branching device, a road analogue signal of input accesses
Light emission module is modulated to optical signal, and gained optical signal accesses optical branching device and is divided into two ways of optical signals, through two
Root Transmission Fibers is sent to receiving terminal.
When photoreceiver include two Optical Receivers, an analog-to-digital conversion module, a microprocessor and
One microwave switch, two ways of optical signals is accessed two Optical Receivers, demodulation by two Transmission Fibers respectively
For two-way analogue signal, accessing microwave switch, microwave switch connects a road analogue signal as native system
The analogue signal of output eventually；The voltage of the connect sample resistance of photo-detector in two Optical Receivers is respectively
Connecting microprocessor through analog-to-digital conversion module, the output of microprocessor connects microwave switch, microprocessor root
Reception according to two Optical Receivers of voltage real-time monitoring of the photo-detector sample resistance in Optical Receivers
Luminous power.The more described threshold value of microprocessor and the current received optical power value of two Optical Receivers, as
Really the received optical power value of the road analogue signal that microwave switch is currently connected is more than or equal to threshold value, protects
Hold microwave switch current state, if the reception light merit of a road analogue signal that microwave switch is currently connected
Rate value is less than threshold value, and the received optical power value of an other road analogue signal is more than or equal to threshold value,
Microprocessor switching microwave switch, makes the analogue signal that another road analogue signal finally exports as native system.
When photoreceiver includes a photoswitch, Optical Receivers, an analog-to-digital conversion module and
Individual microprocessor, two ways of optical signals is accessed photoswitch by two Transmission Fibers, and photoswitch is by a wherein road light
Signal is connected with Optical Receivers, and optical signal demodulation is analogue signal by Optical Receivers, as native system
The analogue signal of final output.The voltage of the connect sample resistance of photo-detector in Optical Receivers is through modulus
Modular converter connects microprocessor, and the output of microprocessor connects photoswitch, and microprocessor is according to light-receiving
The received optical power of the voltage real-time monitoring Optical Receivers of the photo-detector sample resistance in module, micro-place
Reason device compares the received optical power value of stored threshold value and Optical Receivers, if photoswitch is currently connect
The received optical power value of Tong mono-road optical signal is less than threshold value, microprocessor switching photoswitch, makes another road
Optical signal is connected with Optical Receivers.
If microprocessor has just switched the reception light merit of the other road analogue signal that microwave switch is connected
Rate value again smaller than threshold value, if or microprocessor just switched the other road optical signal that photoswitch is connected
Received optical power value again smaller than threshold value, micro-process to two ways of optical signals transmission fault report to the police；Continue simultaneously
Detect the received optical power value of every road signal.When the received optical power value on only one tunnel is less than threshold value, micro-place
Reason device is not to fault alarm.
Described microprocessor is furnished with display screen, and the Optical Receivers that operator can show according to display screen is current
Received optical power value, described microwave switch or photoswitch are carried out manual switching, select native system final
The analogue signal of output.
Compared with prior art, a kind of analogue signal optical fiber telecommunications system with Hot Spare of the present invention and
The advantage of using method is: 1, optical sender automatically generates the optical signal with Hot Spare, when two-way light is believed
A certain road in number cause its power can not meet transmission reliably because optical fiber connection, optical cable etc. break down
Property require time, an other road can be switched to；Simultaneously when judging certain light emission module, Optical Receivers
During fault, it is normal that manually controllable microwave switch or photoswitch are switched to light emission module, Optical Receivers
Na mono-tunnel, ensures the reliability and stability of communication effectively；2, the switching of photoreceiver can be by micro-
Reason device is automatically performed, and when current received optical power corresponding voltage value is less than threshold value, microprocessor controls microwave
Switch or photoswitch automatically switch to another road；3, microwave switch or photoswitch are manually controllable, display screen
Showing received optical power value and microwave switch or the state of photoswitch, operator can tie according to power detection
Fruit carries out favourable selection；4, native system all uses existing device to constitute, it is easy to operation, significantly improves mould
The reliability intending signal optical fibre communication reaches 2 times.
Accompanying drawing explanation
Fig. 1 is analogue signal optical fiber telecommunications system embodiment 1 structural representation with Hot Spare；
Fig. 2 is analogue signal optical fiber telecommunications system embodiment 2 structural representation with Hot Spare；
Fig. 3 is analogue signal optical fiber telecommunications system embodiment 3 structural representation with Hot Spare；
Fig. 4 is analogue signal optical fiber telecommunications system embodiment 4 structural representation with Hot Spare；
Fig. 5 be the analogue signal optical fiber telecommunications system with Hot Spare using method embodiment one in light connect
Receipts machine automatic control flow chart figure；
Fig. 6 be the analogue signal optical fiber telecommunications system with Hot Spare using method embodiment one in light connect
Receive tractor driver and move control flow chart；
Fig. 7 be the analogue signal optical fiber telecommunications system with Hot Spare using method embodiment two in light connect
Receipts machine automatic control flow chart figure；
Fig. 8 be the analogue signal optical fiber telecommunications system with Hot Spare using method embodiment two in light connect
Receive tractor driver and move control flow chart.
Detailed description of the invention
There is the analogue signal optical fiber telecommunications system embodiment 1 of Hot Spare
Originally there is the analogue signal optical fiber telecommunications system embodiment 1 of Hot Spare as it is shown in figure 1, scheme short-and-medium
Horizontal dotted line line represents that photo-signal channel, solid line line represent that analog signal channel, pecked line represent telecommunications
Number connect.
The optical sender of this example includes that analogue signal is modulated to light letter by a signal of telecommunication power splitter and two
Number identical light emission module, a road analogue signal of input accesses signal of telecommunication power splitter and is divided into two-way mould
Intend signal, be respectively connected to light emission module 1 and light emission module 2, the outfan of two light emission modules
A piece Transmission Fibers of each connection；This example photoreceiver includes two identical Optical Receivers 1 and light-receiving
2, analog-to-digital conversion module (ADC) of module, a microprocessor and a microwave switch, two biographies
Losing fibre and be respectively connected to two Optical Receivers, the analogue signal of each Optical Receivers demodulation gained accesses
Microwave switch, microwave switch is output as the analogue signal that native system finally exports, two Optical Receivers
The voltage of interior the connect sample resistance of photo-detector connects microprocessor, micro-place through analog-to-digital conversion module respectively
The output of reason device connects microwave switch, and the received optical power of two Optical Receivers monitored in real time by microprocessor,
And control microwave switch according to the current received optical power information of Optical Receivers.
Described microprocessor is furnished with display screen, display screen display received optical power value and the state of microwave switch.
There is the analogue signal optical fiber telecommunications system embodiment 2 of Hot Spare
Originally there is the analogue signal optical fiber telecommunications system embodiment 2 of Hot Spare as in figure 2 it is shown, line line style
Represent same as in Example 1.
The optical sender of this example includes a light emission module and an optical branching device, and analogue signal accesses light
Transmitter module, the outfan of light emission module accesses optical branching device and is divided into two ways of optical signals, optical branching device
Outfan respectively connects a Transmission Fibers.
The structure of the photoreceiver of this example is same as in Example 1.
There is the analogue signal optical fiber telecommunications system embodiment 3 of Hot Spare
Originally there is the analogue signal optical fiber telecommunications system embodiment 3 of Hot Spare as it is shown on figure 3, line line style
Represent same as in Example 1.
The structure of the optical sender of this example is same as in Example 1.
The photoreceiver of this example includes a photoswitch, Optical Receivers, an analog-to-digital conversion module
(ADC) and one microprocessor, two Transmission Fibers access photoswitch, and the output of photoswitch connects light and connects
Receiving module, Optical Receivers is output as the analogue signal that native system finally exports；This example Optical Receivers
In the voltage of the connect sample resistance of photo-detector connect microprocessor through analog digital conversion, microprocessor defeated
Going out and connect photoswitch, the received optical power information of Optical Receivers monitored in real time by microprocessor, and according to working as
Front received optical power information controls photoswitch.
This example microprocessor is furnished with display screen, display screen display received optical power value and the state of photoswitch.
There is the analogue signal optical fiber telecommunications system embodiment 4 of Hot Spare
Originally there is the analogue signal optical fiber telecommunications system embodiment 4 of Hot Spare as shown in Figure 4, line line style
Represent same as in Example 1.
The structure of the optical sender of this example is same as in Example 2.
The structure of the photoreceiver of this example is same as in Example 3.
There is the using method embodiment one of the analogue signal optical fiber telecommunications system of Hot Spare
Originally there is the using method embodiment one of the analogue signal optical fiber telecommunications system of Hot Spare, use above-mentioned
There is the analogue signal optical fiber telecommunications system embodiment 1 of Hot Spare.
One tunnel analogue signal of this example optical sender input is divided into two-way analogue signal through signal of telecommunication power splitter,
Being respectively connected to two light emission modules, analogue signal is modulated to optical signal by light emission module, and two-way light is believed
Number it is sent to receiving terminal through two Transmission Fibers.
Two ways of optical signals is accessed two Optical Receivers solutions by this example photoreceiver two Transmission Fibers respectively
Being adjusted to two-way analogue signal, access microwave switch, microwave switch connects a road analogue signal as native system
The analogue signal of final output；The voltage of the connect sample resistance of photo-detector in two Optical Receivers divides
Not connecting microprocessor through analog-to-digital conversion module (ADC), the output of microprocessor connects microwave switch.Micro-
Processor is according to two light-receiving moulds of voltage real-time monitoring of the photo-detector sample resistance in Optical Receivers
The received optical power of block.The threshold value that microprocessor storage is arranged, this threshold value is reliable for realizing this communication system
The minimum optical power value of communication.The more described threshold value of microprocessor receives with the current of two Optical Receivers
Optical power value, if the received optical power value of a road analogue signal currently connected of microwave switch more than or
Equal to threshold value, keep microwave switch current state, continue the reception of the current Optical Receivers connected of monitoring
Luminous power；If the received optical power of the road analogue signal that microwave switch is currently connected is less than threshold value,
And the received optical power value of an other road analogue signal is more than or equal to threshold value, and microprocessor switching is micro-
Ripple switchs, and makes the analogue signal that another road analogue signal finally exports as native system, continues monitoring current
The received optical power of the Optical Receivers connected.If the just reception light of an other road analogue signal of switching
Performance number is again smaller than threshold value, and two ways of optical signals transmission fault is reported to the police by micro-process.Continue to detect every road simultaneously
The received optical power value of signal, when the received optical power value on only one tunnel is less than threshold value, microprocessor is not
To fault alarm.
The flow process that microprocessor is automatically adjusted is as shown in Figure 5.
This example may be used without manually regulating microwave switch.This example microprocessor is furnished with display screen, shows screen display
Show the state of received optical power value and microwave switch.Operator checks display on-screen-display message, if microwave
The received optical power value of the road analogue signal that switch is currently connected, more than or equal to threshold value, keeps microwave
Switch current state, continues the received optical power of the current Optical Receivers connected of monitoring；If microwave is opened
The received optical power closing the road analogue signal currently connected is less than threshold value, and an other road analogue signal
Received optical power value more than or equal to threshold value, need operator's manual switching microwave switch, make another
The analogue signal that road analogue signal finally exports as native system, continues the current light-receiving mould connected of monitoring
The received optical power of block；If the received optical power of the road analogue signal that microwave switch is currently connected is little
In threshold value, and the received optical power value of an other road analogue signal is reported to the police again smaller than threshold value, operator.
And continue to monitor the change of optical power value.Manually the flow process of regulation is as shown in Figure 6.
There is the using method embodiment two of the analogue signal optical fiber telecommunications system of Hot Spare
Originally there is the using method embodiment two of the analogue signal optical fiber telecommunications system of Hot Spare, use above-mentioned
There is the analogue signal optical fiber telecommunications system embodiment 4 of Hot Spare.
One tunnel analogue signal of this example optical sender input accesses light emission module and is modulated to optical signal, gained
Optical signal accesses optical branching device and is divided into two ways of optical signals, is sent to receiving terminal through two Transmission Fibers.
Two ways of optical signals is accessed photoswitch by two Transmission Fibers of this example photoreceiver, and photoswitch is by wherein one
Road optical signal is connected with Optical Receivers, and optical signal demodulation is analogue signal by Optical Receivers, as this
The analogue signal that system finally exports.The voltage warp of the connect sample resistance of photo-detector in Optical Receivers
Analog-to-digital conversion module (ADC) connects microprocessor, and the output of microprocessor connects photoswitch, microprocessor
Connecing of the current Optical Receivers of voltage real-time monitoring according to the photo-detector sample resistance in Optical Receivers
Receiving luminous power, the threshold value that microprocessor storage is arranged, microprocessor compares stored threshold value and light-receiving
The received optical power value of module, if the received optical power value of a road optical signal that photoswitch is currently connected
More than or equal to threshold value, keep this state, continue to monitor the received optical power of current Optical Receivers；As
Really the received optical power value of the road optical signal that photoswitch is currently connected is less than threshold value, and microprocessor switches
Photoswitch, makes another road optical signal connect with Optical Receivers, continues to monitor connecing of current Optical Receivers
Receive luminous power, if the received optical power value of the other road optical signal being just switched on is again smaller than threshold value,
Two ways of optical signals transmission fault is reported to the police by micro-process.Continue to detect the received optical power value of every road signal simultaneously,
When the received optical power value on only one tunnel is less than threshold value, microprocessor is not to fault alarm.
The flow process that microprocessor is automatically adjusted is as shown in Figure 7.
This example may be used without manually regulating photoswitch.This example microprocessor is furnished with display screen, and display screen shows
Current photoswitch selects received optical power value and the state of photoswitch of the optical signal of connection, and operator checks
On display screen, current photoswitch selects the received optical power value of the optical signal connected.If current photoswitch institute
The optical signal received optical power value accessed, more than or equal to threshold value, keeps photoswitch current state, continue prison
Survey the received optical power of current Optical Receivers；If the optical signal that current photoswitch is accessed receives light merit
Rate value is less than threshold value, manually regulation switching photoswitch, makes another road optical signal access Optical Receivers, continues
The continuous received optical power monitoring current Optical Receivers.If after switching photoswitch, another road optical signal
Received optical power value is reported to the police still less than threshold value, operator.Manually the flow process of regulation photoswitch is as shown in Figure 8.
Above-described embodiment, is only to the purpose of the present invention, technical scheme and beneficial effect the most specifically
Bright specific case, the present invention is not limited to this.All done within the scope of disclosure of the invention
Any modification, equivalent substitution and improvement etc., within being all contained in protection scope of the present invention.
Claims (10)
1. there is an analogue signal optical fiber telecommunications system for Hot Spare, the light emission connected including optical fiber
Machine and photoreceiver, optical sender includes the light emission module that analogue signal is modulated to optical signal, and light connects
Receipts machine includes that by optical signal demodulation be the Optical Receivers of analogue signal, it is characterised in that:
Described optical sender includes a signal of telecommunication power splitter and two identical light emission modules, input
A road analogue signal access signal of telecommunication power splitter and be divided into two-way analogue signal, be respectively connected to two light emission
Module, the outfan of two light emission modules respectively connects a Transmission Fibers；Or described optical sender bag
Including a light emission module and an optical branching device, analogue signal accesses light emission module, light emission module
Outfan access optical branching device be divided into two ways of optical signals, the outfan of optical branching device respectively connects a transmission
Optical fiber；
Described photoreceiver include two Optical Receivers, analog-to-digital conversion module (ADC), one micro-
Processor and a microwave switch, two Transmission Fibers are respectively connected to two Optical Receivers, and each light connects
The analogue signal receiving module demodulation gained accesses microwave switch, and it is the most defeated that microwave switch is output as native system
The analogue signal gone out, the voltage of the connect sample resistance of photo-detector in two Optical Receivers is respectively through mould
Number conversion module (ADC) connects microprocessor, and the output of microprocessor connects microwave switch；Or, institute
State photoreceiver include a photoswitch, an Optical Receivers, an analog-to-digital conversion module (ADC) and
One microprocessor, two Transmission Fibers access photoswitch, and the output of photoswitch connects Optical Receivers,
Optical Receivers is output as the analogue signal that native system finally exports, the photo-detector institute in Optical Receivers
The voltage connecing sample resistance connects microprocessor through analog-to-digital conversion module (ADC), and the output of microprocessor is even
Connect photoswitch.
The analogue signal optical fiber telecommunications system with Hot Spare the most according to claim 1, its feature
It is:
Described microprocessor is furnished with display screen, display screen show current received optical power value and microwave switch or
The current state of person's photoswitch.
The user of the analogue signal optical fiber telecommunications system with Hot Spare the most according to claim 1
Method, it is characterised in that:
One tunnel analogue signal is modulated to two ways of optical signals by described optical sender, is simultaneously sent to receiving terminal；
Described photoreceiver receives two ways of optical signals, and is analogue signal by optical signal demodulation, simultaneously through micro-process
The received optical power value of device detection two paths of signals, the threshold value that microprocessor storage is arranged, this threshold value is for realizing
The minimum optical power value of this communication system reliable communication；The two ways of optical signals received selects receive light merit
Rate value is more than or equal to arranging a road of threshold value as output.
The use of the analogue signal optical fiber telecommunications system with Hot Spare the most according to claim 3
Method, it is characterised in that:
Described optical sender includes a signal of telecommunication power splitter and two light emission modules, a road mould of input
Intending signal and be divided into two-way analogue signal through signal of telecommunication power splitter, be respectively connected to two light emission modules, light is sent out
Penetrating module and analogue signal is modulated to optical signal, two ways of optical signals is sent to receiving terminal through two Transmission Fibers.
The use of the analogue signal optical fiber telecommunications system with Hot Spare the most according to claim 3
Method, it is characterised in that:
Described optical sender includes a light emission module and an optical branching device, a road simulation letter of input
Number accessing light emission module is modulated to optical signal, and gained optical signal accesses optical branching device and is divided into two ways of optical signals,
It is sent to receiving terminal through two Transmission Fibers.
The use of the analogue signal optical fiber telecommunications system with Hot Spare the most according to claim 3
Method, it is characterised in that:
Described photoreceiver includes two Optical Receivers, analog-to-digital conversion module, a microprocessor
With a microwave switch, two ways of optical signals is accessed two Optical Receivers, solves by two Transmission Fibers respectively
Being adjusted to two-way analogue signal, access microwave switch, microwave switch connects a road analogue signal as native system
The analogue signal of final output；The voltage of the connect sample resistance of photo-detector in two Optical Receivers divides
Not connecting microprocessor through analog-to-digital conversion module, the output of microprocessor connects microwave switch, microprocessor
Connecing of two Optical Receivers of voltage real-time monitoring according to the photo-detector sample resistance in Optical Receivers
Receive luminous power；The more described threshold value of microprocessor and the current received optical power value of two Optical Receivers,
If the received optical power of the road analogue signal that microwave switch is currently connected is more than or equal to threshold value, protect
Hold microwave switch current state, if the reception light merit of a road analogue signal that microwave switch is currently connected
Rate value is less than threshold value, and the received optical power value of an other road analogue signal is more than or equal to threshold value,
Microprocessor switching microwave switch, makes the analogue signal that another road analogue signal finally exports as native system.
The use of the analogue signal optical fiber telecommunications system with Hot Spare the most according to claim 3
Method, it is characterised in that:
Described photoreceiver include a photoswitch, an Optical Receivers, an analog-to-digital conversion module and
One microprocessor, two ways of optical signals is accessed photoswitch by two Transmission Fibers, and photoswitch is by a wherein road
Optical signal is connected with Optical Receivers, and optical signal demodulation is analogue signal by Optical Receivers, as this is
The analogue signal of the final output of system；The voltage of the connect sample resistance of photo-detector in Optical Receivers is through mould
Number conversion module connects microprocessor, and the output of microprocessor connects photoswitch, and microprocessor connects according to light
The received optical power of the voltage real-time monitoring Optical Receivers of the photo-detector sample resistance in receipts module, micro-
Processor compares the current received optical power value of stored threshold value and Optical Receivers, if photoswitch
The received optical power value of the road optical signal currently connected is less than threshold value, and microprocessor switches photoswitch,
Another road optical signal is made to connect with Optical Receivers.
8. according to the analogue signal optical fiber telecommunications system with Hot Spare described in claim 6 or 7
Using method, it is characterised in that:
If microprocessor has just switched the reception light merit of the other road analogue signal that microwave switch is connected
Rate value again smaller than threshold value, if or microprocessor just switched the other road optical signal that photoswitch is connected
Received optical power value again smaller than threshold value, micro-process to two ways of optical signals transmission fault report to the police；Continue simultaneously
Detect the received optical power value of every road signal.
The user of the analogue signal optical fiber telecommunications system with Hot Spare the most according to claim 6
Method, it is characterised in that:
Described microprocessor is furnished with display screen, display screen display received optical power value and microwave switch or light
The state of switch；The optical power value of the Optical Receivers that operator shows according to display screen, to described microwave
Switch carries out manual switching, selects the mould that the arbitrary road in two-way analogue signal finally exports as native system
Intend signal.
The use of the analogue signal optical fiber telecommunications system with Hot Spare the most according to claim 7
Method, it is characterised in that:
Described microprocessor is furnished with display screen, display screen display received optical power value and microwave switch or light
The state of switch；The optical power value of the Optical Receivers that operator shows according to display screen, opens described light
Pass carries out manual switching, selects the arbitrary road in two ways of optical signals to access Optical Receivers.
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Application publication date: 20160831 |