CN109725591B - Monitoring device and method thereof - Google Patents
Monitoring device and method thereof Download PDFInfo
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- CN109725591B CN109725591B CN201811636923.0A CN201811636923A CN109725591B CN 109725591 B CN109725591 B CN 109725591B CN 201811636923 A CN201811636923 A CN 201811636923A CN 109725591 B CN109725591 B CN 109725591B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a monitoring device and a method thereof, wherein the monitoring device comprises: the system comprises a server, a photovoltaic inverter and a monitoring host; the monitoring host comprises: a first signal transmitting device for transmitting a monitoring signal, a first signal receiving device and a storage device for storing an operation parameter; the plurality of photovoltaic inverters includes: a second signal transmitting device for transmitting the operation parameter to the first signal receiving device, a second signal receiving device for receiving the monitoring signal transmitted by the first signal transmitting device, and a processor for comparing the analysis target parameter with the monitoring signal received from the first signal transmitting device to control the photovoltaic inverter; the first signal transmitting device is connected to the second signal receiving device and the server in a communication way; the storage device is communicatively connected to the first signal transmitting device and the first signal receiving device. The monitoring device has high monitoring efficiency and high monitoring stability on the photovoltaic inverter system.
Description
Technical Field
The invention relates to a monitoring device and a method thereof.
Background
At present, two monitoring modes exist for data monitoring of the distributed photovoltaic inverter, namely PLC monitoring and wireless 2.4G monitoring, and the system capacity of the PLC monitoring is limited to a certain extent. So that more and more systems currently employ wireless 2.4G monitoring schemes.
However, the 2.4G wireless signal is relatively easily affected by the complex environment of the site, especially the steel reinforced concrete structure and the battery plate of the photovoltaic site have great attenuation to the 2.4G wireless signal, so the transmission distance is generally close. And the monitoring scheme of the ad hoc network has serious signal interference to 2.4G. Therefore, the monitoring system built by one collector on the photovoltaic site at present often has one or two pieces of equipment data which are difficult to monitor or cannot be monitored, and the efficiency of system monitoring and the complexity of system monitoring installation are seriously influenced.
Disclosure of Invention
The invention provides a monitoring device and a monitoring method thereof, which adopts the following technical scheme:
a monitoring device, comprising:
the photovoltaic inverters have preset target parameters and can realize a monitoring function;
the monitoring host is used for monitoring the operation parameters of the photovoltaic inverter and sending the operation parameters to the server;
the server is used for receiving the operation parameters about the photovoltaic inverter sent by the monitoring host and reading the operation parameters by a user;
the monitoring host comprises:
a first signal transmitting device for transmitting a monitoring signal;
the first signal receiving device is used for receiving the operation parameters of the photovoltaic inverter;
a storage device for storing the operation parameters;
the photovoltaic inverter includes:
second signal transmitting means for transmitting the operation parameter to the first signal receiving means;
the second signal receiving device is used for receiving the monitoring signal sent by the first signal sending device;
the processor is used for comparing and analyzing the target parameter with the monitoring signal sent by the first signal sending device so as to control the photovoltaic inverter;
the first signal transmitting device is connected to the second signal receiving device and the server in a communication way; the first signal receiving device is connected to the second signal transmitting device in a communication way; the storage device is connected to the first signal transmitting device and the first signal receiving device in a communication way;
wherein the second signal transmitting device of one of the plurality of photovoltaic inverters is communicatively connected to the second signal receiving device of another one of the plurality of photovoltaic inverters; the second signal transmitting device of the other one of the plurality of photovoltaic inverters is communicatively connected to the second signal receiving device of the one of the plurality of photovoltaic inverters;
the monitoring signal includes: a target signal and a routing signal;
when the processor compares and analyzes that the target signal is the same as the target parameter, the photovoltaic inverter is equipment to be monitored;
when the comparison analysis routing signal of the processor is the same as the target parameter, the photovoltaic inverter is a jump level monitoring device.
Further, the skip level monitoring device is used for monitoring another one of the plurality of photovoltaic inverters and sending the operation parameters thereof to the monitoring host.
Further, a plurality of photovoltaic inverters are arranged in a matrix.
Further, the monitoring host is located at the center of the matrix.
Further, the distance from the plurality of photovoltaic inverters to the monitoring host is more than 0m and less than or equal to 50m
Further, the distance between the plurality of photovoltaic inverters is more than 0m and less than or equal to 10m
A monitoring method applied to the monitoring device of any one of claims 1 to 5; the monitoring method comprises the following steps:
s1: the monitoring host sends a monitoring signal to the equipment to be monitored through the first signal sending device and judges whether the equipment can be monitored or not;
s2, when the monitoring result of the S1 is yes, the monitoring host receives the operation parameters sent by the equipment to be monitored and stores the operation parameters in the storage device to realize point-to-point monitoring;
s3: the monitoring host judges whether the monitored equipment to be monitored is the last equipment to be monitored;
s4: when the judgment result of the step S3 is yes, ending the monitoring;
s5: when the monitoring result of the S1 is negative, the monitoring host sends a monitoring signal to the skip level monitoring equipment, monitors the equipment to be monitored in the S1 through the skip level monitoring equipment, and judges whether the equipment to be monitored can be monitored;
s6: when the monitoring result of the step S5 is yes, the skip level monitoring equipment receives the operation parameters of the equipment to be monitored in the step S1, sends the operation parameters to the monitoring host, and returns to the step S3 and the step S4;
s7: when the judgment result of the step S5 is negative, the monitoring host judges whether the skip-level monitoring equipment is the last skip-level monitoring equipment or not;
s8: when the judgment result of the S7 is yes, the monitoring host judges whether the photovoltaic inverter to be monitored is the last device to be monitored;
s9: and when the judgment result of the S8 is yes, ending the monitoring.
Further, when the judgment result of S7 is no, the monitoring host sends a monitoring signal to the next-hop monitoring device to monitor the device to be monitored, and returns to S5.
Further, when the judgment result of the step S8 is no, the monitoring host sends a monitoring signal to the next hop level monitoring device, and the step S1 is returned.
Further, if the judgment result of S3 is no, the monitoring host sends a target signal to the next photovoltaic inverter, and returns to S1.
The monitoring device and the monitoring method have the advantages that the monitoring device and the monitoring method realize the jump level monitoring by designating one photovoltaic inverter to monitor the other photovoltaic inverter which cannot be directly monitored, the monitoring efficiency of the photovoltaic inverter system is improved, the monitoring stability of the photovoltaic inverter system is ensured, and the monitoring device is simple in installation structure.
Drawings
FIG. 1 is a schematic illustration of a monitoring device of the present invention;
FIG. 2 is a schematic illustration of an obstacle of a monitoring device of the present invention in another position;
FIG. 3 is a block diagram of a monitoring device of the present invention;
fig. 4 is a block diagram of the photovoltaic inverter of the monitoring apparatus of fig. 3;
FIG. 5 is a block diagram of a monitoring host of the monitoring device of FIG. 3;
fig. 6 is a flowchart of a monitoring method of a monitoring device of the present invention.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 6, a monitoring apparatus 100 includes:
a plurality of photovoltaic inverters 101. The photovoltaic inverter 101 has preset target parameters and it enables monitoring of each other.
A monitoring host 102 for sending a monitoring signal to the photovoltaic inverter 101 to monitor an operation parameter of the photovoltaic inverter 101 and sending the operation parameter to the server.
The server is used for receiving the operation parameters about the photovoltaic inverter 101 sent by the monitoring host 102 and providing the operation parameters for a user to read so as to prompt the user of the operation condition of the photovoltaic inverter 101.
Wherein, the monitoring host 102 includes:
the first signal transmitting device 1021 is configured to transmit the monitoring signal and the operation parameter of the photovoltaic inverter 101.
The first signal receiving device 1022 is configured to receive an operation parameter of the photovoltaic inverter 101.
A storage device 1023 for storing the operating parameters of the photovoltaic inverter 101.
The photovoltaic inverter 101 includes:
second signal transmission means 1011 for transmitting the operation parameter to first signal reception means 1022.
The second signal receiving device 1012 is configured to receive the monitoring signal sent by the first signal sending device 1021.
A processor 1013 for comparing the analysis target parameter with the monitoring signal transmitted from the first signal transmission device 1021 to control the photovoltaic inverter 101.
The first signal transmitting device 1021 is communicatively coupled to the second signal receiving device 1012 and the server. The first signal receiving apparatus 1022 is communicatively coupled to the second signal transmitting apparatus 1011. The storage device 1023 is communicatively connected to the first signal transmitting device 1021 and the first signal receiving device 1022.
Wherein the second signal transmitting device 1011 of one of the plurality of photovoltaic inverters 101 is communicatively connected to the second signal receiving device 1012 of another of the plurality of photovoltaic inverters 101. The second signal transmission device 1011 of the other of the plurality of photovoltaic inverters 101 is communicatively connected to the second signal reception device 1012 of the one of the plurality of photovoltaic inverters 101.
The monitoring signal includes: a target signal and a routing signal.
When the processor 1013 compares and analyzes that the target signal is the same as the target parameter, the photovoltaic inverter 101 is the device to be monitored.
The photovoltaic inverter 101 is a skip-level monitoring device when the processor 1013 compares the analyzed routing signal to the target parameter.
The skip-level monitoring device is used for monitoring another one of the plurality of photovoltaic inverters 101 and sending operation parameters thereof to the monitoring host 102.
Specifically, when the monitoring host 102 monitors one photovoltaic inverter 101 among the plurality of photovoltaic inverters 101, a target signal of a monitoring signal to be transmitted is set as a target parameter preset for the photovoltaic inverter 101, and the monitoring signal is transmitted to the photovoltaic inverter 101. After receiving the monitoring signal, the photovoltaic inverter 101 compares and analyzes the preset target parameter of itself with the target signal in the monitoring signal through the processor 1013, determines itself as the device to be monitored, and sends the operation parameter of itself to the monitoring host 102 through the second signal sending device 1011. When the monitoring host 102 does not receive the operation parameter information sent back by the photovoltaic inverter 101 after sending the monitoring signal, it is determined that the photovoltaic inverter 101 is blocked by the shelter 103. At this time, the monitoring host 102 resends the monitoring signal to the designated photovoltaic inverter 101, and converts the designated photovoltaic inverter 101 into a skip-level monitoring device, and monitors the photovoltaic inverter 101 shielded by the shelter 103 by the skip-level monitoring device. The specific process is as follows: the monitoring host 102 sets the target signal of the monitoring signal to be transmitted as a target parameter preset by the photovoltaic inverter 101 and sets the routing signal of the monitoring signal as a target parameter of another photovoltaic inverter 101 at the same time. The designated photovoltaic inverter 101 determines itself as a jump level monitoring device by determining that its own preset target parameter is the same as the route signal in the monitoring signal and different from the target signal of the monitoring signal. At this time, as the skip-level monitoring device, the received detection signal is sent to the photovoltaic inverter 101 behind the shelter 103, after the photovoltaic inverter 101 behind the shelter 103 receives the detection signal, the processor 1013 judges that the preset target parameter of the photovoltaic inverter is the same as the target signal of the detection signal, that is, the photovoltaic inverter judges itself to be the device to be monitored, and sends the operation parameter of the photovoltaic inverter to the skip-level monitoring device, and the skip-level monitoring device sends the received operation parameter to the monitoring host 102.
Further, in order to improve the working efficiency of the system, a plurality of photovoltaic inverters 101 may be designated as the jump level monitoring device according to the arrangement of the photovoltaic inverters 101 on site and the characteristics of the site. The arrangement can avoid that monitoring signals are required to be sequentially sent to a plurality of photovoltaic inverters 101 each time the photovoltaic inverters 101 behind the shelter 103 need to be monitored, so that long monitoring time and low efficiency are caused by monitoring. The number of photovoltaic inverters 101 specified may be dependent on the actual situation.
As a preferred embodiment, a plurality of photovoltaic inverters 101 are arranged in a matrix.
As a preferred embodiment, the monitoring host 102 is located in the center of the matrix. This arrangement can ensure the stability of the monitoring signal transmitted from the monitoring host 102 to each of the photovoltaic inverters 101.
As a preferred embodiment, the distances from the plurality of photovoltaic inverters 101 to the monitoring host 102 are greater than 0m and less than or equal to 50m, so as to ensure the stability of signal transmission.
As a preferred embodiment, the distance between the plurality of photovoltaic inverters 101 is greater than 0m and less than or equal to 10m, thereby ensuring stability of signal transmission.
As a preferred embodiment, the distance from the plurality of photovoltaic inverters 101 to the monitoring host 102 is 20m, and the distance is beneficial to the signal transmission efficiency, so that the monitoring efficiency of the photovoltaic inverters 101 is further improved.
As a preferred embodiment, the distance between the plurality of photovoltaic inverters 101 is 2m, and the distance is set to facilitate the signal transmission efficiency, so that the monitoring efficiency of the photovoltaic inverters 101 is further improved.
Alternatively, the plurality of photovoltaic inverters 101 may be arranged in a circular shape or may be arranged in an irregular shape.
The invention also provides a monitoring method applied to the monitoring device 100. The monitoring method comprises the following steps:
s1: the monitoring host 102 sends a monitoring signal to the device to be monitored through the first signal sending device 1021 and judges whether the monitoring can be performed.
And S2, when the monitoring result of the S1 is yes, the monitoring host receives the operation parameters sent by the equipment to be monitored and stores the operation parameters in the storage device 1023, so that point-to-point monitoring is realized.
S3: the monitoring host 102 determines whether the monitored device to be monitored is the last device to be monitored.
S4: and when the judgment result of the S3 is yes, ending the monitoring.
S5: and when the monitoring result of the step S1 is no, the monitoring host 102 sends a monitoring signal to the skip-level monitoring equipment, monitors the equipment to be monitored in the step S1 through the skip-level monitoring equipment, and judges whether the equipment to be monitored can be monitored or not.
S6: when the monitoring result of S5 is yes, the skip level monitoring device receives the operation parameter of the device to be monitored in S1 and sends the operation parameter to the monitoring host 102, and returns to S3 and S4.
S7: when the determination result of S5 is no, the monitoring host 102 determines whether the skip-level monitoring device is the last skip-level monitoring device.
S8: when the determination result of S7 is yes, the monitoring host 102 determines whether the photovoltaic inverter 101 to be monitored is the last device to be monitored.
S9: and when the judgment result of the S8 is yes, ending the monitoring.
As a preferred embodiment, S7 further includes S71, and S71 includes: when the judgment result of S7 is no, the monitoring host 102 sends a monitoring signal to the next hop level monitoring device to monitor the device to be monitored and returns to S5.
As a preferred embodiment, when the determination at S8 is negative, the monitoring host 102 sends a monitoring signal to the next hop level monitoring device, and returns to S1.
As a preferred embodiment, when the determination result of S3 is no, the monitoring host 102 sends the target signal to the next photovoltaic inverter 101, and returns to S1.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the invention in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the invention.
Claims (10)
1. A monitoring device, comprising:
the photovoltaic inverters have preset target parameters and can realize a monitoring function;
the monitoring host is used for monitoring the operation parameters of the photovoltaic inverter and receiving the operation parameters;
the server is used for receiving the operation parameters about the photovoltaic inverter sent by the monitoring host and reading the operation parameters by a user;
the monitoring host comprises:
a first signal transmitting device for transmitting a monitoring signal;
the first signal receiving device is used for receiving the operation parameters of the photovoltaic inverter;
a storage device for storing the operating parameters;
the photovoltaic inverter includes:
second signal transmitting means for transmitting the operation parameter to the first signal receiving means;
a second signal receiving device for receiving the monitoring signal sent by the first signal sending device;
a processor for comparing and analyzing the target parameter with the monitoring signal transmitted from the first signal transmitting device to control the photovoltaic inverter;
the first signal transmitting device is in communication connection with the second signal receiving device and the server; the first signal receiving device is connected to the second signal transmitting device in a communication way; the storage device is in communication connection with the first signal transmitting device and the first signal receiving device;
wherein a second signaling device of one of the plurality of photovoltaic inverters is communicatively connected to a second signaling device of another of the plurality of photovoltaic inverters; a second signal transmitting device of another one of the plurality of photovoltaic inverters is communicatively connected to a second signal receiving device of one of the plurality of photovoltaic inverters;
the monitoring signal includes: a target signal and a routing signal;
when the processor compares and analyzes that the target signal is the same as the target parameter, the photovoltaic inverter is equipment to be monitored;
when the processor compares and analyzes that the routing signal is the same as the target parameter, the photovoltaic inverter is a jump level monitoring device;
when the monitoring host monitors one of the photovoltaic inverters, setting a target signal of the monitoring signal to be sent by the monitoring host as a target parameter preset by the photovoltaic inverter, sending the monitoring signal to the photovoltaic inverter, and comparing and analyzing the target parameter preset by the photovoltaic inverter with the target signal in the monitoring signal through the processor after receiving the monitoring signal, judging the photovoltaic inverter as equipment to be monitored, and sending the operation parameter of the photovoltaic inverter to the monitoring host through the second signal sending device;
when the monitoring host sends the monitoring signal and does not receive the running parameter sent back by the photovoltaic inverter, the photovoltaic inverter is judged to be blocked by the shelter, the monitoring host resends the monitoring signal to the appointed photovoltaic inverter, the appointed photovoltaic inverter is converted into a skip-level monitoring device, the photovoltaic inverter blocked by the shelter is monitored through the skip-level monitoring device, the monitoring host sets the target signal of the monitoring signal to be sent to the preset target parameter of the photovoltaic inverter and sets the routing signal of the monitoring signal to the target parameter of the appointed photovoltaic inverter at the same time, the appointed photovoltaic inverter judges itself to be a skip-level monitoring device by judging that the preset target parameter is the same as the routing signal in the monitoring signal and is different from the target signal of the monitoring signal, the appointed photovoltaic inverter is used as the skip-level monitoring device to send the received monitoring signal to the photovoltaic inverter after being blocked by the shelter, the monitoring host sends the target signal to the photovoltaic inverter to be sent to the appointed photovoltaic inverter, and the photovoltaic inverter is used as the appointed target parameter after the skip-level monitoring device is sent to the photovoltaic inverter, and the photovoltaic inverter is judged to be the target signal to be sent to the target parameter of the photovoltaic inverter after the photovoltaic inverter is sent to the photovoltaic inverter to be detected to the target signal.
2. The monitoring device of claim 1, wherein,
the jump level monitoring device is used for monitoring another one of the photovoltaic inverters and sending the operation parameters of the photovoltaic inverters to the monitoring host.
3. The monitoring device of claim 1, wherein,
the plurality of photovoltaic inverters are arranged in a matrix.
4. A monitoring device according to claim 3, wherein,
the monitoring host is positioned at the center of the matrix.
5. The monitoring device of claim 4, wherein,
and the distances from the photovoltaic inverters to the monitoring host are more than 0m and less than or equal to 50m.
6. The monitoring device of claim 5, wherein,
and the distance between the plurality of photovoltaic inverters is more than 0m and less than or equal to 10m.
7. A monitoring method, characterized by being applied to the monitoring device of any one of claims 1 to 5; the monitoring method comprises the following steps:
s1: the monitoring host sends a monitoring signal to the equipment to be monitored through the first signal sending device and judges whether the equipment to be monitored can be monitored or not;
s2, when the monitoring result of the S1 is yes, the monitoring host receives the operation parameters sent by the equipment to be monitored and stores the operation parameters in the storage device to realize point-to-point monitoring;
s3: the monitoring host judges whether the monitored equipment to be monitored is the last equipment to be monitored;
s4: when the judgment result of the step S3 is yes, ending the monitoring;
s5: when the monitoring result of the S1 is negative, the monitoring host sends a monitoring signal to the skip level monitoring equipment, monitors the equipment to be monitored in the S1 through the skip level monitoring equipment, and judges whether the equipment to be monitored can be monitored;
s6: when the monitoring result of the step S5 is yes, the skip level monitoring equipment receives the operation parameter of the equipment to be monitored in the step S1, sends the operation parameter to the monitoring host, and returns to the step S3 and the step S4;
s7: when the judgment result of the step S5 is negative, the monitoring host judges whether the skip-level monitoring equipment is the last skip-level monitoring equipment or not;
s8: when the judgment result of the S7 is yes, the monitoring host judges whether the photovoltaic inverter to be monitored is the last device to be monitored;
s9: and when the judgment result of the S8 is yes, ending the monitoring.
8. The method of monitoring as set forth in claim 7, wherein,
and when the judgment result of the S7 is negative, the monitoring host sends the monitoring signal to the next skip level monitoring equipment so as to monitor the equipment to be monitored, and the S5 is returned.
9. The method of monitoring as set forth in claim 8, wherein,
and when the judgment result of the S8 is negative, the monitoring host sends the monitoring signal to the next hop level monitoring equipment, and the S1 is returned.
10. The method of monitoring as set forth in claim 8, wherein,
and when the judgment result of the step S3 is negative, the monitoring host sends a target signal to the next photovoltaic inverter, and the step S1 is returned.
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| CN109725591A (en) | 2019-05-07 |
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Address after: 310000 3rd floor, building 11, No.18, Kangjing Road, Gongshu District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou Hemai Power Electronics Co.,Ltd. Address before: 310000 3rd floor, building 11, No.18, Kangjing Road, Gongshu District, Hangzhou City, Zhejiang Province Applicant before: HOYMILES CONVERTER TECHNOLOGY CO.,LTD. |
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