CN107942879A - Distributed photovoltaic monitoring system - Google Patents
Distributed photovoltaic monitoring system Download PDFInfo
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- CN107942879A CN107942879A CN201711369726.2A CN201711369726A CN107942879A CN 107942879 A CN107942879 A CN 107942879A CN 201711369726 A CN201711369726 A CN 201711369726A CN 107942879 A CN107942879 A CN 107942879A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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Abstract
The invention discloses a kind of distributed photovoltaic monitoring system, which includes：Monitoring center, communication manager, equipment, monitoring center is used to request of data is wirelessly transmitted to communication manager by down target channel, communication manager is used to receive request of data, and by uplink destination channel by the operation data wireless feedback of equipment corresponding with request of data to monitoring center, wherein, the operation data for the equipment that operation data are gathered and preserved for communication manager, monitoring center is used to receive operation data by uplink destination channel, and operation data are monitored, groove is walked without carrying out complicated ditching, reduces wiring complexity.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of distributed photovoltaic monitoring system.
Background technology
As photovoltaic power generation technology progressively tends to be ripe and perfect, in order to meet the needs of photovoltaic generation networking, it is necessary to right
Photovoltaic generation carries out real time monitoring, and current photovoltaic generation monitoring system is mainly monitored using hard-wired networking mode,
However, there is need the problem of groove is walked in ditching, wiring is complicated for hard-wired networking mode.
Therefore, there is need the problem of groove is walked in ditching, wiring is complicated for existing photovoltaic generation monitoring system.
The content of the invention
It is a primary object of the present invention to provide a kind of distributed photovoltaic monitoring system, it is intended to solve existing photovoltaic generation
The problem of groove is walked in ditching, wiring is complicated is needed existing for monitoring system.
To achieve the above object, the present invention provides a kind of distributed photovoltaic monitoring system, the system comprises：In monitoring
The heart, communication manager, equipment；
The monitoring center is used to request of data is wirelessly transmitted to the communication manager by down target channel；
The communication manager is used to receive the request of data, and will be with the request of data by uplink destination channel
The operation data wireless feedback of corresponding equipment to the monitoring center, wherein, it is described operation data be the communication manager
The operation data for the equipment for gathering and preserving；
The monitoring center is used to receive the operation data by the uplink destination channel, and to the operation data
It is monitored.
Optionally, the communication manager is additionally operable to：
The first ZigBee data packets of the ZigBee equipment of the Centroid subnet in preset time period in channel are obtained, and
2nd ZigBee data packets of the ZigBee equipment in distributed subnet in preset time period in channel；
The first ZigBee data packets and the 2nd ZigBee data packets are parsed, obtain signal strength instruction
Value；
Judge whether the signal strength indication value meets default channel requirements, it is right if meeting the channel requirements
The signal strength indication value carries out dispersion ratio analysis, obtains dispersion ratio value；
The down target channel and the uplink destination channel are determined according to the dispersion ratio value.
Optionally, the monitoring center is used to send the first object in the request of data to the down target channel
Centroid subnet；
The first object Centroid subnet is used to the request of data being wirelessly issued to the down target channel
In first object distribution subnet；
The first object distribution subnet is used to the request of data being converted to serial data stream, and by the serial ports
Data flow is sent to the communication manager with the first object distribution Subnetwork connection.
Optionally, the monitoring center be additionally operable to by the down target channel tranmitting data register synch command to it is described
The corresponding communication manager of down target channel；
The communication manager is additionally operable to based on the clock synchronization command into row clock amendment, and passes through the uplink mesh
Revised clock is back to the monitoring center by mark channel.
Optionally, the monitoring center is additionally operable to determine that the first data benefit copies mark, and sends the first data benefit and copy instruction
The corresponding communication manager of mark is copied to being mended with first data, first data, which mend to copy to instruct, includes first data
Benefit copies mark；
The communication manager, which is additionally operable to receive first data, to be mended and copies instruction, and will copy finger with first data benefit
Corresponding first is made to treat that benefit copies data sending to the monitoring center, described first treats that benefit copies data to be stored in the communication pipe
The operation data of the equipment for not feeding back to the monitoring center in reason machine.
Optionally, the communication manager is additionally operable to determine that the second data benefit copies mark, and is mended based on second data
Copy mark active obtaining and second data benefit and copy the second of the corresponding equipment of mark and treat that benefit copies data, described second treats that benefit is copied
Data are not feed back to the operation data for being stored in the equipment of the monitoring center；
What the communication manager was additionally operable to get described second treats that benefit copies data feedback to the monitoring center.
The present invention provides a kind of distributed photovoltaic monitoring system, which includes：Monitoring center, communication manager, equipment,
Monitoring center is used to request of data is wirelessly transmitted to communication manager by down target channel, and communication manager is used to receive
Request of data, and by uplink destination channel by the operation data wireless feedback of equipment corresponding with request of data extremely monitoring
The heart, wherein, the operation data for the equipment that operation data are gathered and preserved for communication manager, monitoring center is used to pass through uplink mesh
Mark channel and receive operation data, and operation data are monitored.Compared with prior art, monitoring center in the embodiment of the present invention
Operation data based on destination channel wireless receiving to equipment are complicated without carrying out because wireless receiving runs data
Ditching walk groove, reduce wiring complexity.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those skilled in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of structure diagram for distributed photovoltaic monitoring system that first embodiment of the invention provides；
Fig. 2 is a kind of structure diagram for distributed photovoltaic monitoring system that second embodiment of the invention provides；
Fig. 3 is the monitoring flow diagram of the distributed photovoltaic monitoring system shown in Fig. 2；
Fig. 4 is the flow diagram that communication manager determines destination channel.
Embodiment
Goal of the invention, feature, advantage to enable the present invention is more obvious and understandable, below in conjunction with the present invention
Attached drawing in embodiment, is clearly and completely described the technical solution in the embodiment of the present invention, it is clear that described reality
It is only part of the embodiment of the present invention to apply example, and not all embodiments.Based on the embodiments of the present invention, people in the art
Member's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
Ditching is needed to walk the complicated technical problem of groove, wiring since photovoltaic generation monitoring system in the prior art exists.In order to
Above-mentioned technical problem is solved, the present invention proposes a kind of distributed photovoltaic monitoring system, which includes：Monitoring center, communication pipe
Reason machine, equipment, monitoring center are used to request of data is wirelessly transmitted to communication manager, communication management by down target channel
Machine is used to receive request of data, and by uplink destination channel by the operation data wireless feedback of equipment corresponding with request of data
To monitoring center, wherein, the operation data for the equipment that operation data are gathered and preserved for communication manager, monitoring center is used to lead to
Cross uplink destination channel and receive operation data, and operation data are monitored.Compared with prior art, in the embodiment of the present invention
Operation data of the monitoring center based on destination channel wireless receiving to equipment, because wireless receiving runs data, without
Carry out complicated ditching and walk groove, reduce wiring complexity.
Referring to Fig. 1, a kind of structure diagram of the distributed photovoltaic monitoring system provided for first embodiment of the invention,
System includes：Monitoring center 10, communication manager 20, equipment 30；
Monitoring center 10 is used to request of data is wirelessly transmitted to communication manager 20 by down target channel C1；
In embodiments of the present invention, if as shown in Figure 1, distributed photovoltaic monitoring system include a monitoring center 10,
Dry communication manager 20 and some equipment 30, are referred to as between monitoring system and communication manager 20 into the passage of row information transmission
Channel, may have a plurality of channel in distributed photovoltaic monitoring system.Wherein, down target channel C1 represents information transfer directions
By monitoring system to communication manager 20, and the channel that network is good, interchannel noise is small, transmission error rates are small.
Communication manager 20 is used to receive request of data, and corresponding with request of data will be set by uplink destination channel C2
Standby 30 operation data wireless feedback to monitoring center 10, wherein, operation data set for what communication manager 20 was gathered and preserved
Standby 30 operation data；
In embodiments of the present invention, uplink destination channel and down target channel represent the channel to match, can be same
One channel can also be different channels, and the uplink in uplink destination channel and down target channel only represents that information passes with downlink
Defeated direction, without other restriction implications.
In embodiments of the present invention, each communication manager 20 is set by what the acquisition in real time of Serial Port Line 40 was connected with itself
Standby 30 operation data, and the operation data got are stored in the communication manager 20, communication manager 20 is receiving
To after request of data, by uplink destination channel C2 by the operation data wireless feedback of equipment 30 corresponding with the request of data extremely
Monitoring center 10.
Wherein, uplink destination channel C2 represents information transfer directions by communication manager 20 to monitoring system, and network is good
The channel good, interchannel noise is small, transmission error rates are small.
Monitoring center 10 is used to receive operation data by uplink destination channel C2, and operation data are monitored.
In embodiments of the present invention, there is provided a kind of distributed photovoltaic monitoring system, the system include：Monitoring center 10, lead to
Supervisor 20, equipment 30 are interrogated, monitoring center 10 is used to request of data is wirelessly transmitted to communication pipe by down target channel C1
Reason machine 20, communication manager 20 is used to receive request of data, and corresponding with request of data will be set by uplink destination channel C2
Standby 30 operation data wireless feedback to monitoring center 10, wherein, operation data set for what communication manager 20 was gathered and preserved
Standby 30 operation data, monitoring center 10 is used to receive operation data by uplink destination channel C2, and operation data are carried out
Monitoring.Compared with prior art, operation of the monitoring center 10 based on destination channel wireless receiving to equipment in the embodiment of the present invention
Data, because wireless receiving runs data, walk groove without carrying out complicated ditching, reduce wiring complexity.
Referring to Fig. 2, a kind of structure diagram of the distributed photovoltaic monitoring system provided for second embodiment of the invention,
As shown in Fig. 2, the distributed photovoltaic monitoring system is further included in Centroid subnet and channel in core switch 50, channel
Distributed subnet, the Centroid subnet in each channel is made of a ZigBee equipment 60, in each channel
Distributed subnet is made of more ZigBee equipment 60, and monitoring center 10 is connected by cable 70 with core switch 50, core
Heart interchanger 50 is connected by cable 70 with forming the ZigBee equipment 60 of Centroid subnet, Centroid subnet and distribution
It can carry out wireless information transfer between formula net, each ZigBee equipment 60 in distributed subnet in each channel is logical
Cross Serial Port Line 40 with a communication manager 20 to be connected, there are multiple interfaces on each communication manager 20, serial ports can be passed through
40 external equipment 30 of line.
Wherein, referring to Fig. 3, for the distributed photovoltaic monitoring system shown in Fig. 2 monitoring flow diagram, including：
Step 301, monitoring center 10 send the first object in request of data to down target channel C1 by cable 70
Centroid subnet；
Request of data is wirelessly issued in down target channel C1 by step 302, first object Centroid subnet
One target distribution formula net；
Request of data is converted to serial data stream by step 303, first object distribution subnet, and serial data stream is sent out
Send to the communication manager 20 with first object distribution Subnetwork connection.
In embodiments of the present invention, will by Serial Port Line 40 after above-mentioned communication manager 20 receives above-mentioned serial data stream
The second target distribution formula in the operation data feedback to uplink destination channel C2 of equipment 30 corresponding with above-mentioned serial data stream
Subnet；The second target's center that above-mentioned second target distribution formula net will be run in data wireless feedback to uplink destination channel C2
Node subnet；Above-mentioned second target's center node subnet will run data feedback to monitoring center 10 by cable 70.
It should be noted that first and second in first object Centroid subnet and second target's center's node subnet
Mark action is only played, first object Centroid subnet and second target's center's node subnet can be identical Centroids
Subnet or different Centroid subnets.In first object distribution subnet and the second target distribution formula net
One and second also only plays mark action, and first object distribution subnet and the second target distribution formula net can be identical points
Cloth subnet or different distributed subnets.
Wherein, because of the difference of the location of ZigBee equipment 60, so the network performance where it has differences, when it
In a certain ZigBee equipment 60 residing for network performance it is poor and when interchannel noise is big, it is necessary to switched over to channel,
It is described in detail below and realizes process using what communication manager 20 determined the good channel of network performance, specifically, refers to
Fig. 4, Fig. 4 are the flow diagram that communication manager 20 determines destination channel, including：
The first of the ZigBee equipment 60 of Centroid subnet in step 401, acquisition preset time period in channel
2nd ZigBee data of the ZigBee equipment 60 in ZigBee data packets, and distributed subnet in preset time period in channel
Bag；
In embodiments of the present invention, the acquisition process of the ZigBee data packets in each channel is identical, for
A certain channel, pre-sets the period, and the period is divided into n collection period, in preset time period, is adopted every one
The collection cycle collects 1 ZigBee data packet from the ZigBee equipment 60 of the Centroid subnet in channel, can gather n
ZigBee data packets, n ZigBee data packet represent above-mentioned first ZigBee data packets.If the distributed subnet in a channel
It is made of k ZigBee equipment 60, in preset time period, every a collection period from the distributed subnet in channel
K ZigBee data packet is collected in k ZigBee equipment 60, k*n ZigBee data packet can be gathered altogether, k*n is a
ZigBee data packets represent above-mentioned 2nd ZigBee data packets.
Step 402, parse the first ZigBee data packets and the 2nd ZigBee data packets, obtains signal strength instruction
Value；
In embodiments of the present invention, each ZigBee data packet correspond to a signal strength indication value, to n
ZigBee data packets (the first ZigBee data packets) are parsed, and obtain n signal strength indication value；To k*n ZigBee number
Parsed according to bag (the 2nd ZigBee data packets), obtain k*n signal strength indication value.
Step 403, judge whether signal strength indication value meets default channel requirements, right if meeting channel requirements
Signal strength indication value carries out dispersion ratio analysis, obtains dispersion ratio value；
In embodiments of the present invention, meet that default channel requirements represent that network performance residing for the channel is good, channel
Noise is unsatisfactory for default channel requirements and represents that network performance residing for the channel is poor, interchannel noise ratio is big than small.
Wherein, judging whether above-mentioned signal strength indication value meets default channel requirements, specific deterministic process has two kinds,
The first is：The average of above-mentioned signal strength indication value is calculated, and judges whether the average is in default signal strength range
It is interior, if in default signal strength range, then it represents that meet default channel requirements；It is for second：Judge above-mentioned signal
Whether strength indicator value is all in default signal strength range, if all in default signal strength range, then it represents that
Meet default channel requirements.
After meeting above-mentioned channel requirements, in order to which the network performance residing for channel is determined more accurately, it is necessary to further
Dispersion ratio analysis is carried out to signal strength indication value, obtains dispersion ratio value, concrete analysis process is：Calculate signal strength indication value
Standard deviation, by the standard deviation of signal strength indication value divided by the average of signal strength indication value, ratio is dispersion ratio value.
Step 404, determine down target channel C1 and uplink destination channel C2 according to dispersion ratio value.
In embodiments of the present invention, which reflects the fluctuation situation and stability of signal strength indication value, right
The dispersion ratio value is analyzed, it may be determined that the network performance residing for channel, if specifically, the dispersion ratio value is less than or equal in advance
If threshold value, then it represents that signal strength indication value fluctuation is smaller, more stable, and the network performance residing for channel is good, if this is discrete
Rate value is more than predetermined threshold value, then it represents that signal strength indication value fluctuation is larger, unstable, and the network performance residing for channel is poor.
Wherein, down target channel C1 represent information transfer directions by monitoring system to communication manager 20, and network is good
The channel good, interchannel noise is small, transmission error rates are small.In whole monitoring process, each preset time period is to being presently in
Channel is analyzed, and obtains dispersion ratio value, if the dispersion ratio value is less than or equal to predetermined threshold value, then it represents that signal strength indication value
Fluctuation is smaller, more stable, and the network performance residing for channel is good, and current channel is determined as down target channel C1；If
The dispersion ratio value is more than predetermined threshold value, then it represents that signal strength indication value fluctuates larger, unstable, the network performance residing for channel
It is poor, current channel is switched over, is switched to one other channel, and determined again using new channel one it is new discrete
Rate value, if the dispersion ratio value is less than or equal to predetermined threshold value, then it represents that the network performance residing for new channel is good, by new letter
Road is determined as down target channel C1.
Wherein, uplink destination channel C2 represents information transfer directions by communication manager 20 to monitoring system, uplink target
The determination process of the determination process of channel C2 such as downlink destination channel C1, is not repeated here herein.
Wherein, the handoff procedure for being switched to one other channel is specially：
Set in advance in the ZigBee equipment 60 in the ZigBee equipment 60 of Centroid subnet and distributed subnet more
A frequency range, by the frequency in the frequency range in the ZigBee equipment 60 in distributed subnet and the ZigBee equipment 60 of Centroid subnet
Duan Jinhang is matched, and the switching of channel is carried out according to matching result.For example, carried out between Centroid subnet 1 and distributed subnet 1
Wireless communication, wireless communication, the ZigBee equipment of Centroid subnet 1 are carried out between Centroid subnet 2 and distributed subnet 2
Frequency range 1 is provided with 60, frequency range 4, the ZigBee of distributed subnet 1 are provided with the ZigBee equipment 60 of Centroid subnet 2
All be provided with frequency range 1 and frequency range 4 in equipment 601 and ZigBee equipment 602, the ZigBee equipment 601 of distributed subnet 2 and
Frequency range 4 and frequency range 5 are all provided with ZigBee equipment 602, when the ZigBee equipment 601 of distributed subnet 1 is because the original such as position
Cause, when unstable networks residing for it, the ZigBee equipment 601 of distributed subnet 1 can not again with Centroid subnet 1 into
Row wireless communication, then the ZigBee equipment 601 of distributed subnet 1 be transferred to frequency range 4 from frequency range 1, the ZigBee of distributed subnet 1 is set
Frequency range 4 is provided with the ZigBee equipment 60 of standby 601 discovery Centroid subnet 2, then successful match, distributed subnet 1
ZigBee equipment 601 and 60 successful connection of ZigBee equipment of Centroid subnet 2, form a new channel, channel is cut
Change work(into, it should be noted that at this time, the ZigBee equipment 602 of distributed subnet 1 still carries out nothing with Centroid subnet 1
Line communicates.
In embodiments of the present invention, by being parsed to the ZigBee data packets of ZigBee equipment 60 and dispersion ratio point
Analysis, determines the network performance quality residing for ZigBee equipment 60, poor in the network performance residing for some ZigBee equipment 60
When, channel is switched over, obtains the good channel of network performance, so as to ensure that the collection of the operation data of equipment 30
Stabilization with it is reliable.
Further, monitoring center 10 be additionally operable to by down target channel C1 tranmitting data registers synch command to downlink mesh
Mark the corresponding communication managers 20 of channel C1；
Communication manager 20 is used to repair into row clock amendment, and by uplink destination channel C2 based on clock synchronization command
Clock after just is back to monitoring center 10.
Wherein, specific clock makeover process is as follows：
Since Centroid subnet is with being to be wirelessly transferred before distributed subnet, so monitoring center 10 and communication manager
Information transmission can have delay between 20, and be also required to transmission time into row information transmission between Serial Port Line 40, for example, at certain
At one moment, it be T that monitoring center 10, which obtains local (monitoring center 10) time, and the progress information package processing time of monitoring center 10 is
Δ T1, monitoring center 10 packing is handled after information to be transferred to time of communication manager 20 be Δ Tc, communication manager 20
After receiving the information after packing processing, unpacking processing is carried out, unpacking processing time is Δ T2, if communication manager 20 is by T
As current newest time complexity curve local clock, current correct is incorrect, because communication manager 20 changes local (communication
Supervisor 20) clock that moment, the standard time should be T+ Δ T1+ Δ Tc+ Δ T2, therefore, if monitoring center 10 is in T
Carve, T+ Δs T1+ Δs Tc+ Δs T2 is sent to communication manager 20, then clock amendment as the standard time and is only accurately.
Wherein, the definite method of Δ T1+ Δs Tc+ Δs T2 is realized by surveying delay message, is surveyed delay message and is typically
Carried out when recovering in initialization and after communication linkage interruption again, the idiographic flow for surveying delay message is：In monitoring center 10
Clock source to send startup of the clock synchronization command as the flow, locality (monitoring center 10) time T is read at the T moment,
Monitoring center 10 carries out information package processing afterwards, and packing processing time is Δ T1, monitoring center 10 packing is handled after letter
Breath is transferred to communication manager 20, and the time is Δ Tc, after communication manager 20 receives the information after packing processing, is unpacked
Processing, unpacking processing time is Δ T2, and at the T+ Δ T1+ Δ Tc+ Δ T2 moment, communication manager 20 receives clock synchronization command
Afterwards, communication manager 20 sends confirmation order at the same time, confirms that the length of order must be with the length of received clock synchronization command
It is identical, it is assumed that packing processing time Δ T1 is identical with unpacking processing time Δ T2, and passes through the time of Δ T1+ Δ Tc+ Δs T2, prison
Control center 10 receives confirmation order, and monitoring center 10 is received and confirms that the time of order is denoted as T2, T2=T+ (Δ T1+ Δ Tc+ Δs
T2)+(Δ T1+ Δ Tc+ Δ T2), therefore, pair when time delay Tdelay=Δ T1+ Δ Tc+ Δs T2=(T2-T)/2, clock source
During clock synchronization afterwards, it is possible to clock is modified, at the T moment, monitoring center 10 sends the standard time
=T+Tdelay is to communication manager 20, and communication manager 20 is using standard time=T+Tdelay as current newest time complexity curve
Local clock, obtains the more accurate time.
In embodiments of the present invention, by being modified to clock, it is ensured that entirely communications network clock is highly consistent, full
The clock synchronization requirement of sufficient distributed photovoltaic monitoring so that what monitoring center 10 was got is the logical accurate equipment without delay
30 operation data.
Further, monitoring center 10 is used to determine that the first data benefit copies mark, and sends the first data benefit and copy instruction extremely
Mended with the first data and copy the corresponding communication manager 20 of mark, the first data, which mend to copy instruction and include the first data benefit, copies mark；
Communication manager 20 is used for reception the first data benefit and copies instruction, and will be mended with the first data and copy instruction corresponding first
Treat that benefit copies data sending to monitoring center 10, first waits to mend that to copy data be to be stored in communication manager 20 not feed back to monitoring
The operation data of the equipment 30 at center 10.
In embodiments of the present invention, during data transfer, when some ZigBee equipment 60 in system occurs
When failure, then it can not carry out data transmission in fault time section, therefore, it is necessary to not having the data of transmission during failure
Benefit is carried out to copy, wherein, ZigBee equipment 60, which breaks down, is divided into two kinds of situations；
The first is that the ZigBee equipment 60 of Centroid subnet breaks down, and monitoring center 10 can record failure
The unit type of ZigBee equipment 60 and the initial time to break down and end time, at the same time, with the failure
ZigBee equipment 60 in the distributed subnet of 60 wireless communication of ZigBee equipment of Centroid subnet can look for it is new can
The ZigBee equipment 60 of the Centroid subnet of connection, and being communicatively coupled, after connection, situation that whole network has no problem
Under, monitoring center 10 determines that the first data are mended and copies mark, which, which mends, copies the appearance that mark expression monitoring center 10 records
The unit type of the ZigBee equipment 60 of the Centroid subnet of failure and the initial time to break down and end time, with this
It is logical meanwhile monitoring center 10 sends the first data and mends and copies instruction and copy the corresponding communication manager 20 of mark to being mended with the first data
After news reception the first data benefit of supervisor 20 copies instruction, instruction corresponding first will be copied with the first data benefit and treat that benefit copies data sending
To monitoring center 10.
It is for second that a certain ZigBee equipment 60 in distributed subnet breaks down, monitoring center 10 can record appearance
The unit type of the ZigBee equipment 60 of failure and the initial time to break down and end time, at the same time, it is necessary to will divide
Failure ZigBee equipment 60 in cloth subnet replaces, and establishes communication connection from new, after connection, whole network is not asked
In the case of topic, monitoring center 10 determines that the first data are mended and copies mark, which, which mends to copy to identify, represents that monitoring center 10 is remembered
The unit type of ZigBee equipment 60 in the distributed subnet of the failure of record and the initial time to break down and end
Time, at the same time, the first data of transmission of monitoring center 10, which mend to copy to instruct to the first data benefit, copies the corresponding communication pipe of mark
Reason machine 20, after reception the first data benefit of communication manager 20 copies instruction, will copy instruction corresponding first with the first data benefit and wait to mend
Data sending is copied to monitoring center 10.
Further, communication manager 20 is used to determine that the second data benefit copies mark, and is mended based on the second data and copy mark
Active obtaining and the second data, which are mended, copies the second of the corresponding equipment 30 of mark and treats that benefit copies data, and second to treat that benefit copies data be not feed back
To the operation data for being stored in equipment 30 of monitoring center 10；
Communication manager 20 is used to treat that benefit copies data feedback to monitoring center 10 by get second.
In embodiments of the present invention, during data transfer, when between connection equipment 30 and communication manager 20
When Serial Port Line 40 breaks down, or the chance failure such as burst power failure, then it can not carry out data biography in fault time section
It is defeated, when there is above two failure, then to carry out data benefit and copy, specifically：
When the failure of some Serial Port Line 40 between equipment 30 and communication manager 20 is connected, then it can not lead to
The operation data that the Serial Port Line 40 obtains the equipment 30 being connected with the Serial Port Line 40 are crossed, communication manager 20 can record failure
The equipment 30 that is connected of Serial Port Line 40 unit type, the initial time that breaks down and end time, by Serial Port Line 40 into
Row is with changing, and in the case that whole system network has no problem, communication manager 20 determines that the second data are mended and copies mark, second number
The unit type for the equipment 30 that the Serial Port Line 40 for copying the failure that mark expression communication manager 20 records according to mending is connected, go out
The initial time of existing failure and end time, at the same time, communication manager 20 are based on the second data benefit and copy mark active obtaining
Mended with the second data and copy the second of the corresponding equipment 30 of mark and treat that benefit copies data, and treat that benefit copies data feedback by get second
To monitoring center 10.
When chance failures such as burst power failures, the operation data that communication manager 20 obtains may be caused imperfect, the communication
Supervisor 20 can record unit type, the initial time to break down of the corresponding equipment 30 of incomplete operation data of acquisition
With the end time, when chance failure terminates, in the case that whole system network has no problem, communication manager 20 determines the second number
Mark is copied according to benefit, which, which mends, copies the incomplete operation data correspondence that mark represents the acquisition that communication manager 20 records
Equipment 30 unit type, break down initial time and the end time, at the same time, communication manager 20 be based on second
Data, which mend to copy mark active obtaining and the second data benefit and copy the second of the corresponding equipment 30 of mark, treats that benefit copies data, and will get
Second treat that benefit copies data feedback to monitoring center 10.
It should be noted that each equipment 30 and can be deposited the short time with the communication manager 20 that the equipment 30 is connected
Store up the operation data of the equipment 30.
In embodiments of the present invention, by that will treat that benefit copies data feedback to monitoring center 10 so that monitoring center 10 can be with
Get complete operation data.
It is to a kind of description of distributed photovoltaic monitoring system system provided by the present invention, for the technology of this area above
Personnel, according to the thought of the embodiment of the present invention, there will be changes in specific embodiments and applications, to sum up, this
Description should not be construed as limiting the invention.
Claims (6)
- A kind of 1. distributed photovoltaic monitoring system, it is characterised in that the system comprises：Monitoring center, communication manager, set It is standby；The monitoring center is used to request of data is wirelessly transmitted to the communication manager by down target channel；The communication manager is used to receive the request of data, and will be corresponding with the request of data by uplink destination channel Equipment operation data wireless feedback to the monitoring center, wherein, it is described operation data for the communication manager collection And the operation data of the equipment preserved；The monitoring center is used to receive the operation data by the uplink destination channel, and the operation data are carried out Monitoring.
- 2. system according to claim 1, it is characterised in that the communication manager is additionally operable to：The first ZigBee data packets of the ZigBee equipment of the Centroid subnet in preset time period in channel are obtained, and it is default 2nd ZigBee data packets of the ZigBee equipment in distributed subnet in the period in channel；The first ZigBee data packets and the 2nd ZigBee data packets are parsed, obtain signal strength indication value；Judge whether the signal strength indication value meets default channel requirements, if meeting the channel requirements, to described Signal strength indication value carries out dispersion ratio analysis, obtains dispersion ratio value；The down target channel and the uplink destination channel are determined according to the dispersion ratio value.
- 3. system according to claim 1, it is characterised in that the monitoring center is used to send the request of data to institute State the first object Centroid subnet in down target channel；The first object Centroid subnet is used to the request of data being wirelessly issued in the down target channel First object distribution subnet；The first object distribution subnet is used to the request of data being converted to serial data stream, and by the serial data Stream is sent to the communication manager with the first object distribution Subnetwork connection.
- 4. according to the system described in claims 1 to 3 any one, it is characterised in that the monitoring center is additionally operable to pass through institute Down target channel tranmitting data register synch command is stated to communication manager corresponding with the down target channel；The communication manager is additionally operable to based on the clock synchronization command into row clock amendment, and is believed by the uplink target Revised clock is back to the monitoring center by road.
- 5. according to the system described in claims 1 to 3 any one, it is characterised in that the monitoring center is additionally operable to determine the One data, which are mended, copies mark, and the first data of transmission mend to copy to instruct extremely to mend with first data and copy the corresponding communication management of mark Machine, first data, which mend to copy instruction and include the first data benefit, copies mark；The communication manager, which is additionally operable to receive first data, to be mended and copies instruction, and will be mended copy with first data and be instructed pair First answered treats that benefit copies data sending to the monitoring center, and described first treats that benefit copies data to be stored in the communication manager The operation data of the interior equipment for not feeding back to the monitoring center.
- 6. according to the system described in claims 1 to 3 any one, it is characterised in that the communication manager is additionally operable to determine Second data mend and copy mark, and are mended based on second data and to copy mark active obtaining with second data benefit to copy mark corresponding Equipment second treat that benefit copies data, described second wait to mend copy data be do not feed back to the monitoring center be stored in described set Standby operation data；What the communication manager was additionally operable to get described second treats that benefit copies data feedback to the monitoring center.
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| CN107942879B (en) | 2020-06-23 |
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