CN111163050A - System and method for dynamically adjusting distributed photovoltaic data transmission - Google Patents
System and method for dynamically adjusting distributed photovoltaic data transmission Download PDFInfo
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- CN111163050A CN111163050A CN201911193000.7A CN201911193000A CN111163050A CN 111163050 A CN111163050 A CN 111163050A CN 201911193000 A CN201911193000 A CN 201911193000A CN 111163050 A CN111163050 A CN 111163050A
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- H—ELECTRICITY
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- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04L67/50—Network services
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Abstract
The invention discloses a distributed photovoltaic data transmission dynamic adjustment system and a method thereof, relating to the technical field of distributed photovoltaic data transmission, comprising a data acquisition device, a wireless private network channel, a wireless access server, an application server, a meteorological information server and the Internet, realizing the function that a plant station end data acquisition device transmits data in the daytime and stops data transmission at night, avoiding resource waste and saving the flow charge of the wireless private network card, thereby improving the economic benefit, realizing that the plant station end data acquisition device randomly disperses in a time period (T1 +/-T) to initiate communication connection with a main station end server, avoiding high concurrency conversation impact caused by simultaneously connecting a large number of data acquisition devices with the servers at the same time, and the sunrise and sunset time data acquired from the Internet are completely calculated by the track of the earth around the sun, the automatic adjustment is carried out along with the change of seasons, so that the inaccuracy caused by manual time setting is avoided.
Description
Technical Field
The invention relates to the technical field of distributed photovoltaic data transmission, in particular to a system and a method for dynamically adjusting distributed photovoltaic data transmission.
Background
The distributed photovoltaic power station is built near a user site, the operation mode is a power generation mode of self-use and internet surfing of a user side, the distributed photovoltaic power station is built near rural areas, pastoral areas and mountain areas, and large, medium and small cities or commercial areas in development, the power consumption requirement of local users is met, the distributed photovoltaic power station needs to be collected relative power generation data to be needed by power supply network dispatching control because the distributed photovoltaic power station needs to be merged into a public power grid for operation, for the distributed photovoltaic power station, the wireless private network mode with low investment cost, wide coverage range, convenient implementation and simple operation and maintenance is generally adopted to realize the transmission of the collected data, the wireless private network refers to a wireless public network (2G/3G/4G) of a renter, the wireless private network card is used to realize the data transmission of a power private channel, and the safety of power service data is ensured, however, the wireless special network card charges according to the transmitted data flow, and even if a monthly payment charging mode of a flow pool is adopted, the distributed photovoltaic power stations are numerous, so that the wireless special network card is a little expense.
The operation mode of the distributed photovoltaic power station is that under the condition of solar radiation, the solar cell module array converts solar energy into electric energy, so the uniqueness is that no power is generated at night, at the moment, a power grid dispatching department does not need power generation data of the solar cell module array, but currently used plant station end data acquisition devices carry out data transmission 24 hours all day, a large amount of useless data invisibly cause resource waste, the flow rate expense of a wireless special network card is increased, and the improvement of economic efficiency is not facilitated.
Disclosure of Invention
The invention provides a distributed photovoltaic data transmission dynamic adjustment system and a method thereof, which have the advantages of avoiding resource waste and avoiding high concurrent session impact caused by the fact that a large number of data acquisition devices are simultaneously connected with a server at the same time, and solve the problem of resource waste caused by the fact that the existing plant station end data acquisition devices are all in data transmission for 24 hours all day.
In order to realize the purposes of avoiding resource waste and avoiding high concurrent session impact caused by simultaneously connecting a large number of data acquisition devices with a server at the same time, the invention provides the following technical scheme: a distributed photovoltaic data transmission dynamic adjustment system comprises a data acquisition device, a wireless private network channel, a wireless access server, an application server, a meteorological information server and the Internet, wherein the output end of the Internet is electrically connected with the input end of the meteorological information server, the output end of the meteorological server is electrically connected with the input end of a second isolation device, and the output end of the second isolation device is electrically connected with the input end of the wireless access server;
the output end of the data acquisition device is bidirectionally and electrically connected with the input end of a wireless private network channel, the output end of the wireless private network channel is bidirectionally and electrically connected with the input end of a firewall, and the output end of the firewall is bidirectionally and electrically connected with the input end of a wireless access server;
the output end of the wireless access server is electrically connected with the input end of a first isolating device, the output end of the first isolating device is electrically connected with the input end of a front-end server, and the output end of the front-end server is electrically connected with the input end of an application server.
As a preferred technical solution of the present invention, the data acquisition device deploys data such as sunrise and sunset times (T1, T2) of the next day of the geographic area, and the allowable adjustment time (T) and the like, and issues the data to the data acquisition device through a network.
As a preferred technical scheme of the invention, the allowable adjusting time t is manually set by the system and can be set in minutes or seconds.
As a preferred technical solution of the present invention, the uncertain factor in the data acquisition device may be a currently used memory value of the device, a current millisecond-level running time, a current thread handle, a network card MAC address, a CPU ID number, and the like, and in actual use, one or more of the factors may be used as an input to perform a hash operation.
As a preferred embodiment of the present invention, the weather data server acquires sunrise and sunset time data (T1, T2) of the next day in a designated geographical area via the internet.
As a preferred technical solution of the present invention, after the data acquisition device at each station receives the time data issued, a hash operation is performed on an uncertain factor of the device to obtain a random number seed i, then i is substituted into a random algorithm to generate an actual time adjustment deviation Δ T of the device the next day, where a range of a value of Δ T is within ± T, a time of the device performing data transmission the next day is T1 '(T1' = T1+ Δ T), and a time of the device stopping data transmission the next day is T2 '(T2' = T2+ Δ T).
A method for dynamically adjusting distributed photovoltaic data transmission comprises the following steps:
s1, the weather data server acquires sunrise and sunset time data (T1 and T2) of the next day of the appointed geographical area through the Internet, and then sends the sunrise and sunset time data to the wireless access server through the isolation device;
s2, the wireless access server sends the data such as sunrise and sunset time (T1, T2) and allowable adjustment time (T) of the data acquisition device deployment geographical area next day to the data acquisition device by inquiring the deployment geographical area information of the station data acquisition device stored in the database;
s3, the wireless access server loops the step S2 until all the time data of the station data acquisition devices are issued;
s4, after receiving the time data issued by each plant station data acquisition device, performing Hash operation on a certain uncertain factor (such as a currently used memory value) of the device to obtain a random number seed i, then bringing i into a random algorithm to generate the actual time adjustment deviation (delta T) of the device next day, wherein the delta T value range is +/-T, the time for performing data transmission next day of the device is T1 '(T1' = T1+ delta T), and the time for stopping data transmission next day of the device is T2 '(T2' = T2+ delta T);
s5, monitoring the current running time of the device regularly during the running of the plant station end data acquisition device, starting the built-in wireless communication module for data transmission when the current running time is more than T1 ', and stopping the built-in wireless communication module for data transmission when the current running time is more than T2';
s6, the station data acquisition device transmits the acquired power generation data of the distributed photovoltaic power station to the wireless access server, the wireless access server sends the received data to the main station front-end server through the isolation device, and the front-end server forwards the data to the application server to finish the final receiving processing of the data.
Advantageous effects
Compared with the prior art, the invention provides a system and a method for dynamically adjusting distributed photovoltaic data transmission, which have the following beneficial effects:
1. according to the system and the method for dynamically adjusting the distributed photovoltaic data transmission, the sunrise time data and the sunset time data acquired from the Internet are completely calculated by the track of the earth around the sun, and are automatically adjusted along with the change of seasons, so that the inaccuracy caused by manual time setting is avoided.
2. The system and the method for dynamically adjusting the distributed photovoltaic data transmission realize the functions that the data acquisition device at the station end transmits data in the daytime and stops transmitting data at night, can avoid resource waste and save the flow charge of the wireless special network card, thereby improving the economic benefit.
3. The system and the method for dynamically adjusting the distributed photovoltaic data transmission realize that the plant station end data acquisition devices randomly disperse in a time period (T1 +/-T) to initiate communication connection with the main station end server, and avoid high concurrent session impact caused by the fact that a large number of data acquisition devices are simultaneously connected with the server at the same time.
Drawings
FIG. 1 is a block diagram of the system components of the present invention;
FIG. 2 is a schematic diagram of the system of the present invention;
FIG. 3 is a flow chart of the operation of the system of the present invention;
fig. 4 is a flow chart of the operation of the data acquisition device of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the invention discloses a distributed photovoltaic data transmission dynamic adjustment system, which comprises a data acquisition device, a wireless private network channel, a wireless access server, an application server, a meteorological information server and the internet, wherein the output end of the internet is electrically connected with the input end of the meteorological information server, the output end of the meteorological information server is electrically connected with the input end of a second isolation device, and the output end of the second isolation device is electrically connected with the input end of the wireless access server;
the output end of the data acquisition device is bidirectionally and electrically connected with the input end of a wireless private network channel, the output end of the wireless private network channel is bidirectionally and electrically connected with the input end of a firewall, and the output end of the firewall is bidirectionally and electrically connected with the input end of a wireless access server;
the output end of the wireless access server is electrically connected with the input end of a first isolating device, the output end of the first isolating device is electrically connected with the input end of a front-end server, and the output end of the front-end server is electrically connected with the input end of an application server.
Referring to fig. 3, the data acquisition device deploys data such as sunrise and sunset times (T1, T2) of the next day of the geographic area, and the adjustment allowable time (T) to be sent to the data acquisition device, where the adjustment allowable time T is manually set by the system, and the unit thereof may be minutes or seconds.
Specifically, the uncertain factors in the data acquisition device may be a memory value currently used by the device, a current millisecond-level running time, a current thread handle, a network card MAC address, a CPU ID number, and the like, and in actual use, hash operation may be performed by using one or more of the factors as input.
Referring to fig. 3, the weather data server obtains sunrise and sunset time data (T1, T2) of the next day in a designated geographical area through the internet.
Referring to fig. 4, after the data acquisition device at each station receives the time data sent down, hash operation is performed on an uncertain factor of the device to obtain a random number seed i, then i is substituted into a random algorithm to generate an actual time adjustment deviation Δ T of the device the next day, where a range of a Δ T value is within ± T, a time for the device to perform data transmission the next day is T1 '(T1' = T1+ Δ T), and a time for the device to stop data transmission the next day is T2 '(T2' = T2+ Δ T).
Referring to fig. 3-4, a method for dynamically adjusting distributed photovoltaic data transmission includes the following steps:
s1, the weather data server acquires sunrise and sunset time data (T1 and T2) of the next day of the appointed geographical area through the Internet, and then sends the sunrise and sunset time data to the wireless access server through the isolation device;
s2, the wireless access server sends the data such as sunrise and sunset time (T1, T2) and allowable adjustment time (T) of the data acquisition device deployment geographical area next day to the data acquisition device by inquiring the deployment geographical area information of the station data acquisition device stored in the database;
s3, the wireless access server loops the step S2 until all the time data of the station data acquisition devices are issued;
s4, after receiving the time data issued by each plant station data acquisition device, performing Hash operation on a certain uncertain factor (such as a currently used memory value) of the device to obtain a random number seed i, then bringing i into a random algorithm to generate the actual time adjustment deviation (delta T) of the device next day, wherein the delta T value range is +/-T, the time for performing data transmission next day of the device is T1 '(T1' = T1+ delta T), and the time for stopping data transmission next day of the device is T2 '(T2' = T2+ delta T);
s5, monitoring the current running time of the device regularly during the running of the plant station end data acquisition device, starting the built-in wireless communication module for data transmission when the current running time is more than T1 ', and stopping the built-in wireless communication module for data transmission when the current running time is more than T2';
s6, the plant station end data acquisition device transmits the acquired distributed photovoltaic power station power generation data to the wireless access server, the wireless access server sends the received data to the main station end front-end server through the isolation device, the front-end server forwards the data to the application server, and the final receiving and processing of the data are finished.
In conclusion, the system and the method for dynamically adjusting the distributed photovoltaic data transmission have the advantages that the sunrise time data and the sunset time data acquired from the internet are completely calculated from the track of the earth around the sun, and are automatically adjusted along with the seasonal change of four seasons, so that inaccuracy caused by manual time setting is avoided; the functions that the data acquisition device at the station end performs data transmission in the daytime and stops data transmission at night are realized, so that resource waste can be avoided, and the flow charge of the wireless special network card is saved, thereby improving the economic benefit; the method and the system realize that the factory station end data acquisition devices randomly disperse in a time period (T1 +/-T) to initiate communication connection with the main station end server, and avoid high concurrent session impact caused by the fact that a large number of data acquisition devices are simultaneously connected with the server at the same time.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a system for distributed photovoltaic data transmission dynamic adjustment, includes data acquisition device, wireless private network passageway, wireless access server, application server, meteorological information server and internet, its characterized in that: the output end of the Internet is electrically connected with the input end of a meteorological information server, the output end of the meteorological information server is electrically connected with the input end of a second isolating device, and the output end of the second isolating device is electrically connected with the input end of a wireless access server;
the output end of the data acquisition device is bidirectionally and electrically connected with the input end of a wireless private network channel, the output end of the wireless private network channel is bidirectionally and electrically connected with the input end of a firewall, and the output end of the firewall is bidirectionally and electrically connected with the input end of a wireless access server;
the output end of the wireless access server is electrically connected with the input end of a first isolating device, the output end of the first isolating device is electrically connected with the input end of a front-end server, and the output end of the front-end server is electrically connected with the input end of an application server.
2. The system according to claim 1, wherein the system further comprises: the weather data server acquires sunrise and sunset time data (T1, T2) of the next day of a specified geographic area through the Internet.
3. The system according to claim 1, wherein the system further comprises: the data acquisition device deploys data such as sunrise and sunset time (T1, T2) of the next day of the geographic area, the allowable adjustment time (T) and the like and transmits the data to the data acquisition device through a network.
4. The system of claim 3, wherein the system further comprises: the adjustment time t is allowed to be set manually by the system and can be in minutes or seconds.
5. The system of claim 2, wherein the system further comprises: after the data acquisition device at each station receives the issued time data, hash operation is firstly carried out on certain uncertain factors of the device to obtain a random number seed i, then the i is brought into a random algorithm to generate the actual time adjustment deviation delta T of the device the next day, the range of the delta T value is within +/-T, the time for carrying out data transmission the next day of the device is T1 '(T1' = T1+ delta T), and the time for stopping data transmission the next day of the device is T2 '(T2' = T2+ delta T).
6. The system of claim 5, wherein the system further comprises: the uncertain factors in the data acquisition device can be a memory value currently used by the device, current millisecond-level running time, a current thread handle, a network card MAC address, a CPU ID number and the like, and in actual use, hash operation can be performed by taking one or more of the factors as input.
7. A method for dynamically adjusting distributed photovoltaic data transmission is characterized by comprising the following steps: the method comprises the following steps:
s1, the weather data server acquires sunrise and sunset time data (T1 and T2) of the next day of the appointed geographical area through the Internet, and then sends the sunrise and sunset time data to the wireless access server through the isolation device;
s2, the wireless access server sends the data such as sunrise and sunset time (T1, T2) and allowable adjustment time (T) of the data acquisition device deployment geographical area next day to the data acquisition device by inquiring the deployment geographical area information of the station data acquisition device stored in the database;
s3, the wireless access server loops the step S2 until all the time data of the station data acquisition devices are issued;
s4, after receiving the time data issued by each plant station data acquisition device, performing Hash operation on certain uncertain factor of the device to obtain a random number seed i, then bringing i into a random algorithm to generate the actual time adjustment deviation (delta T) of the device next day, wherein the delta T value range is +/-T, the time for performing data transmission next day of the device is T1 '(T1' = T1+ delta T), and the time for stopping data transmission next day of the device is T2 '(T2' = T2+ delta T);
s5, monitoring the current running time of the device regularly during the running of the plant station end data acquisition device, starting the built-in wireless communication module for data transmission when the current running time is more than T1 ', and stopping the built-in wireless communication module for data transmission when the current running time is more than T2';
s6, the station data acquisition device transmits the acquired power generation data of the distributed photovoltaic power station to the wireless access server, the wireless access server sends the received data to the main station front-end server through the isolation device, and the front-end server forwards the data to the application server to finish the final receiving processing of the data.
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