CN111865216B - Identification method, device and system for physical position of photovoltaic module - Google Patents
Identification method, device and system for physical position of photovoltaic module Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Abstract
The invention provides a method, a device and a system for identifying the physical position of a photovoltaic module, wherein under the condition that the system enters an identification mode, each monitor is enabled to collect a preset parameter value of the corresponding photovoltaic module by sending a parameter collection instruction to each monitor, the sampling time of the preset parameter value is recorded, after each photovoltaic module is determined to be disturbed according to the sequence of the physical position, the preset parameter value collected by each monitor and the sampling time of the preset parameter value are obtained, the time of the disturbance applied to the photovoltaic module of each monitor is further determined, and then the relative physical position of the photovoltaic module of each monitor is determined according to the sequence of the sampling time when the photovoltaic module of each monitor is disturbed. The automatic identification of the physical position of the photovoltaic module is realized, the problem that the physical position of the photovoltaic module is easy to make mistakes due to manual recording is avoided, and the identification efficiency is improved.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a method, a device and a system for identifying a physical position of a photovoltaic module.
Background
With the development of photovoltaic power generation technology, from photovoltaic module string monitoring to photovoltaic module monitoring, photovoltaic power stations gradually tend to fine monitoring management. In order to accurately acquire the information of each photovoltaic module, the photovoltaic modules and the monitors need to be bound one by one, unique ID serial numbers are given to the monitors, the physical positions of the photovoltaic modules corresponding to the monitors are recorded, and the photovoltaic modules can be accurately positioned through the monitors and the information of the photovoltaic modules can be acquired.
However, during actual construction and installation, the positions of the monitors are randomly installed, and in order to determine the physical position of the photovoltaic module where the monitoring device is installed, the current conventional method is to manually record the physical position of the photovoltaic module corresponding to each monitor and then input the physical position into a host of the module monitoring system.
Disclosure of Invention
In view of this, the invention provides a method, an apparatus and a system for identifying physical positions of photovoltaic modules, which automatically identify the relative physical position of the photovoltaic module where each monitor is located.
In order to achieve the above purpose, the invention provides the following specific technical scheme:
a method for identifying the physical position of a photovoltaic module, which is applied to a host in a module monitoring system, wherein the module monitoring system further comprises monitors deployed on the respective photovoltaic modules, and each monitor corresponds to at least one photovoltaic module, the method comprises the following steps:
under the condition that the system enters an identification mode, sending a parameter acquisition instruction to each monitor to control each monitor to continuously acquire a preset parameter value of the photovoltaic module, and recording the sampling time of the preset parameter value;
after determining that each photovoltaic module is disturbed according to the sequence of the physical positions, acquiring the preset parameter value acquired by each monitor and the sampling time of the preset parameter value;
and determining the relative physical position of the photovoltaic module where each monitor is located according to the sequence of the sampling time corresponding to the fluctuation of the preset parameter value acquired by each monitor.
Optionally, if each of the monitors has a clock function, the sending a parameter collecting instruction to each of the monitors includes:
and sending a parameter acquisition instruction for instructing to start a clock function and continuously acquiring the preset parameter value of the photovoltaic module to each monitor, so as to control each monitor to record the sampling time of the preset parameter value through clock time.
Optionally, if each of the monitors does not have a clock function, the sending a parameter collecting instruction to each of the monitors includes:
and sending a parameter acquisition instruction for instructing to start a counting function and continuously acquiring preset parameter values of the photovoltaic module to each monitor so as to control each monitor to record the sampling time of the preset parameter values through the time represented by counting.
Optionally, when applying the perturbation to each photovoltaic module by making a moving shadow over each photovoltaic module in the order of physical positions, the determining that each photovoltaic module is to be perturbed in the order of physical positions includes:
and after receiving the disturbance application completion instruction, determining that the disturbance is applied to each photovoltaic module according to the sequence of the physical positions.
Optionally, when disturbance is applied to each photovoltaic module by arranging a shielding object at the head or the tail of a photovoltaic module string formed by each photovoltaic module, the system enters an identification mode after starting up, and determining that the disturbance is applied to each photovoltaic module according to the sequence of physical positions includes:
and when the time length of the system entering the identification mode reaches the preset time length, determining that the disturbance is applied to each photovoltaic module according to the sequence of the physical positions.
Optionally, before the system enters the recognition mode, the method further includes:
acquiring the identifier of each monitor and the identifiers of the photovoltaic modules which are installed according to the sequence of the physical positions;
after the determining the relative physical location of the photovoltaic module where each of the monitors is located, the method further comprises:
and determining the identifier of each photovoltaic module where the monitor is located according to the sequence of the physical positions of the photovoltaic modules when the photovoltaic modules are installed and the relative physical position of the photovoltaic module where the monitor is located, and binding the identifier of each monitor and the identifier of the photovoltaic module where the monitor is located.
An apparatus for identifying physical locations of photovoltaic modules, applied to a host in a module monitoring system, the module monitoring system further including monitors disposed on each photovoltaic module, each monitor corresponding to at least one photovoltaic module, the apparatus comprising:
the instruction sending unit is used for sending a parameter acquisition instruction to each monitor under the condition that the system enters an identification mode so as to control each monitor to continuously acquire a preset parameter value of the photovoltaic module, and recording the sampling time of the preset parameter value;
the data acquisition unit is used for acquiring the preset parameter value acquired by each monitor and the sampling time of the preset parameter value after determining that each photovoltaic module is subjected to disturbance according to the sequence of physical positions;
and the physical position determining unit is used for determining the relative physical position of the photovoltaic module where each monitor is located according to the sequence of the sampling time corresponding to the preset parameter values which are acquired by each monitor when the preset parameter values fluctuate.
Optionally, if each of the monitors has a clock function, the instruction sending unit is specifically configured to:
and sending a parameter acquisition instruction for instructing to start a clock function and continuously acquiring the preset parameter value of the photovoltaic module to each monitor, so as to control each monitor to record the sampling time of the preset parameter value through clock time.
Optionally, if each of the monitors does not have a clock function, the instruction sending unit is specifically configured to:
and sending a parameter acquisition instruction for instructing to start a counting function and continuously acquiring preset parameter values of the photovoltaic module to each monitor so as to control each monitor to record the sampling time of the preset parameter values through the time represented by counting.
Optionally, when applying the disturbance to each photovoltaic module in a manner of making a moving shadow above each photovoltaic module in the order of physical positions, the data acquisition unit is specifically configured to:
and after receiving the disturbance application completion instruction, determining that the disturbance is applied to each photovoltaic assembly according to the sequence of the physical positions.
Optionally, when disturbance is applied to each photovoltaic module by arranging a shielding object at the head or the tail of a photovoltaic module string formed by each photovoltaic module, the system enters an identification mode after startup, and the data acquisition unit is specifically configured to:
and when the time length of the system entering the identification mode reaches the preset time length, determining that the disturbance is applied to each photovoltaic module according to the sequence of the physical positions.
Optionally, the apparatus further comprises:
the identification acquisition unit is used for acquiring the identification of each monitor and the identifications of all photovoltaic modules installed according to the sequence of physical positions;
and the binding unit is used for determining the identifier of the photovoltaic module where each monitor is located according to the sequence of the physical positions when each photovoltaic module is installed and the relative physical position of the photovoltaic module where each monitor is located after determining the relative physical position of the photovoltaic module where each monitor is located, and binding the identifier of each monitor and the identifier of the photovoltaic module where each monitor is located.
A component monitoring system comprises a host and monitors arranged on photovoltaic components, wherein each monitor corresponds to at least one photovoltaic component;
the host is in communication connection with each monitor;
the host is used for executing the photovoltaic module physical position identification method disclosed in the embodiment.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a method for identifying the physical position of a photovoltaic module, which comprises the steps of sending a parameter acquisition instruction to each monitor under the condition that a system enters an identification mode, enabling each monitor to acquire the preset parameter value of the photovoltaic module and recording the sampling time of the preset parameter value, acquiring the preset parameter value and the sampling time of the corresponding photovoltaic module under the normal condition due to the acquisition of the preset parameter value and the sampling time of the photovoltaic module under the disturbance, determining the corresponding sampling time of the photovoltaic module under the disturbance according to the acquired data of each monitor, and determining the relative physical position of the photovoltaic module under the disturbance according to the sequence of the physical positions because each photovoltaic module is subjected to the disturbance according to the sequence of the sampling time of the photovoltaic module under the disturbance, the automatic identification of the physical position of the photovoltaic module is realized, the problem that errors are easily caused by manual recording of the physical position of the photovoltaic module is avoided, and the identification efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for identifying a physical location of a photovoltaic module according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of disturbance application according to the present disclosure;
FIG. 3 is a schematic diagram of a monitor recording parameter according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for identifying a physical location of a photovoltaic module according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an assembly monitoring system according to an embodiment 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The method for identifying the physical position of the photovoltaic module disclosed in this embodiment is applied to a host in a module monitoring system, the module monitoring system further includes monitors deployed on each photovoltaic module, each monitor may be deployed on each photovoltaic module in one photovoltaic group string, or may be deployed on each photovoltaic module in more than one photovoltaic group string, and each monitor corresponds to at least one photovoltaic module, that is, one photovoltaic module may correspond to one monitor, or there may be a case where two or more photovoltaic modules share one monitor.
The monitor has the function of detecting the parameters of the components, and the host is in communication connection with each monitor, and can adopt wired or wireless connection. The monitor can be a component monitor, a shutoff device, an optimizer and the like with a pure monitoring function, and can also be directly integrated on the photovoltaic component to form an intelligent component together with the photovoltaic component. The host machine can be a separate device or can be integrated in the inverter.
Each monitor has a unique identifier, and after each monitor in the component monitoring system is deployed on each photovoltaic component, the host computer can acquire the related parameter information of the photovoltaic component where each monitor is located, which is sent by each monitor, but does not know the physical position of the photovoltaic component, and in order to solve the technical problem, the invention provides a method for automatically identifying the physical position of the photovoltaic component, referring to fig. 1, the method comprises the following steps:
s101: under the condition that the system enters an identification mode, sending a parameter acquisition instruction to each monitor to control each monitor to continuously acquire a preset parameter value of the photovoltaic module, and recording the sampling time of the preset parameter value;
because the control is every watch-dog and is lasted the collection place photovoltaic module predetermine the parameter value to the purpose in of the sampling time of predetermineeing the parameter value is recorded: the method comprises the steps of collecting preset parameter values and sampling time of the photovoltaic module under normal conditions, collecting the preset parameter values and the sampling time of the corresponding photovoltaic module after disturbance is applied, and further determining the corresponding sampling time of the photovoltaic module to which the monitor is applied when the disturbance is applied according to data collected by the monitor. Therefore, the preset parameters are parameters of the disturbed image, such as voltage, and if the system is in a grid-connected mode, the preset parameters can also include parameters such as current and power besides the voltage for reference, so that the accuracy of determining the time when the disturbance is applied to the photovoltaic module where each monitor is located is improved.
The monitor may or may not have a clock function.
If each monitor has a clock function, sending a parameter acquisition instruction to each monitor specifically comprises: and sending a parameter acquisition instruction for instructing to start a clock function and continuously acquiring the preset parameter value of the photovoltaic module to each monitor so as to control each monitor to record the sampling time of the preset parameter value through clock time.
If each monitor does not have the clock function, sending a parameter acquisition instruction to each monitor specifically comprises the following steps: and sending a parameter acquisition instruction for instructing to start a counting function and continuously acquiring the preset parameter value of the photovoltaic module to each monitor so as to control each monitor to record the sampling time of the preset parameter value through the time represented by counting.
The mode of sending the parameter acquisition instruction can be a mode of sending an enabling zone bit in a group broadcasting mode so as to control each monitor to continuously acquire the preset parameter value of the photovoltaic module according to the preset logic and record the sampling time of the preset parameter value.
S102: after determining that each photovoltaic module is subjected to disturbance according to the sequence of physical positions, acquiring a preset parameter value acquired by each monitor and sampling time of the preset parameter value;
the disturbance may be applied in various manners, such as applying the disturbance to each photovoltaic module by making a moving shadow over each photovoltaic module in order of physical position, applying the disturbance to each photovoltaic module by disposing a barrier at the head or tail of a string of each photovoltaic module, and the like, and is not particularly limited herein.
When disturbance is applied to each photovoltaic module in a mode of manufacturing moving shadows above each photovoltaic module according to the sequence of the physical positions, after a disturbance application completion instruction sent by a user is received, it is determined that each photovoltaic module is subjected to disturbance according to the sequence of the physical positions.
When disturbance is applied to each photovoltaic module by arranging a shielding object at the head or the tail of a photovoltaic module string consisting of each photovoltaic module, the system enters an identification mode after starting up, because the disturbance mode is that shadow generated on the photovoltaic module is moved by illumination, the disturbance application time is long, a preset time length needs to be set, such as 12 hours, and when the time length for the system to enter the identification mode reaches the preset time length, the disturbance applied to each photovoltaic module according to the sequence of physical positions is determined.
S103: and determining the relative physical position of the photovoltaic module where each monitor is located according to the sequence of the corresponding sampling time when the preset parameter value acquired by each monitor fluctuates.
Taking a photovoltaic string as an example of the system structure, please refer to fig. 2, after the system enters the recognition mode, a moving shadow is artificially created from the very tail of the string, and the shadow is sequentially moved from the tail of the string to the head of the string according to the sequence of the physical positions. In the process, the preset parameter values recorded by the monitor, such as the voltage, and the corresponding time sequence of the voltage, i.e. the sampling time, are shown in fig. 3, and the time when the disturbance is applied to the photovoltaic module where the monitor is located can be obviously determined.
The following table shows the time of applying the disturbance to the photovoltaic module where each monitor is located, and the relative physical position of each photovoltaic module calculated according to the sequence of the time of applying the disturbance to each photovoltaic module, wherein the serial number is the identifier of the monitor, and the time sequence of the parameter change is the time of applying the disturbance to the photovoltaic module.
It should be noted that the time sequence is not necessarily the real time recorded by the clock, but may also be the cumulative timing through counting, such as adding 1 to every 1 second, and finally recording the total number of seconds.
The purpose of determining the relative physical positions of the photovoltaic modules is to bind the monitor with the photovoltaic module where the monitor is located, it should be noted that before the system enters the identification mode, the host computer already obtains the identifier of each monitor and the identifiers of the photovoltaic modules installed according to the sequence of the physical positions, and the method for obtaining the identifiers may be manual entry or code scanning entry.
After the relative physical position of the photovoltaic module where each monitor is located is determined, the identifier of the photovoltaic module where each monitor is located can be determined according to the sequence of the physical positions when each photovoltaic module is installed and the relative physical position of the photovoltaic module where each monitor is located, the identifier of each monitor is bound with the identifier of the photovoltaic module where each monitor is located, and when the monitor corresponds to more than one photovoltaic module, the identifier of each monitor is bound with the identifier of the more than one photovoltaic module where each monitor is located.
It can be seen that, in the case that the system enters the identification mode, by sending a parameter acquisition instruction to each monitor, each monitor acquires the preset parameter value of the photovoltaic module where the monitor is located, and records the sampling time of the preset parameter value, since each monitor acquires the preset parameter value and the sampling time of the photovoltaic module where the monitor is located under the normal condition, and also acquires the preset parameter value and the sampling time of the corresponding photovoltaic module where the disturbance is applied, the method can determine the sampling time of the photovoltaic module where the monitor is located when the disturbance is applied according to the data acquired by each monitor, and since each photovoltaic module is disturbed according to the sequence of the physical positions, the method can determine the sampling time sequence of the photovoltaic module where the monitor is located when the disturbance is applied according to the sequence of the sampling time of the photovoltaic module where the monitor is located when the disturbance is applied, the relative physical position of the photovoltaic module where each monitor is located is determined, so that the automatic identification of the physical position of the photovoltaic module is realized, the problem that errors are easily caused by manual recording of the physical position of the photovoltaic module is avoided, and the identification efficiency is improved.
Based on the method for identifying the physical location of the photovoltaic module disclosed in the foregoing embodiment, this embodiment correspondingly discloses an apparatus for identifying the physical location of the photovoltaic module, which is applied to a host in a module monitoring system, where the module monitoring system further includes monitors deployed on each photovoltaic module, each of the monitors corresponds to at least one photovoltaic module, please refer to fig. 4, where the apparatus includes:
the instruction sending unit 100 is configured to send a parameter acquisition instruction to each monitor when the system enters the identification mode, so as to control each monitor to continuously acquire a preset parameter value of the photovoltaic module where the monitor is located, and record sampling time of the preset parameter value;
the data acquisition unit 200 is configured to acquire the preset parameter value acquired by each monitor and the sampling time of the preset parameter value after determining that each photovoltaic module is subjected to disturbance according to the sequence of physical positions;
the physical position determining unit 300 is configured to determine a relative physical position of the photovoltaic module where each monitor is located according to a sequence of sampling times corresponding to fluctuation of the preset parameter values that have been collected by each monitor.
Optionally, if each of the monitors has a clock function, the instruction sending unit 100 is specifically configured to:
and sending a parameter acquisition instruction for instructing to start a clock function and continuously acquiring the preset parameter value of the photovoltaic module to each monitor, so as to control each monitor to record the sampling time of the preset parameter value through clock time.
Optionally, if each of the monitors does not have a clock function, the instruction sending unit 100 is specifically configured to:
and sending a parameter acquisition instruction for instructing to start a counting function and continuously acquiring preset parameter values of the photovoltaic module to each monitor so as to control each monitor to record the sampling time of the preset parameter values through the time represented by counting.
Optionally, when applying the disturbance to each photovoltaic module by making a moving shadow over each photovoltaic module in the order of physical positions, the data acquisition unit 200 is specifically configured to:
and after receiving the disturbance application completion instruction, determining that the disturbance is applied to each photovoltaic assembly according to the sequence of the physical positions.
Optionally, when disturbance is applied to each photovoltaic module by arranging a barrier at the head or the tail of a photovoltaic module string formed by each photovoltaic module, the system enters an identification mode after being started up, and the data acquisition unit 200 is specifically configured to:
and when the time length of the system entering the identification mode reaches the preset time length, determining that the disturbance is applied to each photovoltaic module according to the sequence of the physical positions.
Optionally, the apparatus further comprises:
the identification acquisition unit is used for acquiring the identification of each monitor and the identifications of all photovoltaic modules installed according to the sequence of physical positions;
and the binding unit is used for determining the identifier of the photovoltaic module where each monitor is located according to the sequence of the physical positions when each photovoltaic module is installed and the relative physical position of the photovoltaic module where each monitor is located after determining the relative physical position of the photovoltaic module where each monitor is located, and binding the identifier of each monitor and the identifier of the photovoltaic module where each monitor is located.
The embodiment also discloses a component monitoring system, please refer to fig. 5, which includes a host and monitors deployed on each photovoltaic component, each monitor may be deployed on each photovoltaic component in one photovoltaic group string, or on each photovoltaic component in more than one photovoltaic group string, and each monitor corresponds to at least one photovoltaic component;
the host is in communication connection with each monitor, specifically, wired communication connection or wireless communication connection is available;
the host is used for executing the method for identifying the physical position of the photovoltaic module disclosed in the embodiment as follows:
under the condition that the system enters an identification mode, sending a parameter acquisition instruction to each monitor to control each monitor to continuously acquire a preset parameter value of the photovoltaic module, and recording the sampling time of the preset parameter value;
after determining that each photovoltaic module is disturbed according to the sequence of the physical positions, acquiring the preset parameter value acquired by each monitor and the sampling time of the preset parameter value;
and determining the relative physical position of the photovoltaic module where each monitor is located according to the sequence of the sampling time corresponding to the fluctuation of the preset parameter value acquired by each monitor.
Further, if each of the monitors has a clock function, the sending a parameter collecting instruction to each of the monitors includes:
and sending a parameter acquisition instruction for instructing to start a clock function and continuously acquiring the preset parameter value of the photovoltaic module to each monitor, so as to control each monitor to record the sampling time of the preset parameter value through clock time.
Further, if each of the monitors does not have a clock function, the sending a parameter collecting instruction to each of the monitors includes:
and sending a parameter acquisition instruction for instructing to start a counting function and continuously acquiring preset parameter values of the photovoltaic module to each monitor so as to control each monitor to record the sampling time of the preset parameter values through the time represented by counting.
Further, when applying perturbations to the individual photovoltaic modules by creating moving shadows over the individual photovoltaic modules in order of physical location, the determining that the individual photovoltaic modules are to be perturbed in order of physical location includes:
and after receiving the disturbance application completion instruction, determining that the disturbance is applied to each photovoltaic module according to the sequence of the physical positions.
Further, when disturbance is applied to each photovoltaic module in a manner that a shielding object is arranged at the head or the tail of a photovoltaic module string formed by each photovoltaic module, the system enters an identification mode after starting up, and the determining that the disturbance is applied to each photovoltaic module according to the sequence of the physical positions comprises the following steps:
and when the time length of the system entering the identification mode reaches the preset time length, determining that the disturbance is applied to each photovoltaic module according to the sequence of the physical positions.
Further, before the system enters the recognition mode, the method further comprises:
acquiring the identifier of each monitor and the identifiers of the photovoltaic modules installed according to the sequence of the physical positions;
after the determining the relative physical location of the photovoltaic module where each of the monitors is located, the method further comprises:
and determining the identifier of the photovoltaic module where each monitor is located according to the sequence of the physical positions of the photovoltaic modules when the photovoltaic modules are installed and the relative physical position of the photovoltaic module where each monitor is located, and binding the identifier of each monitor and the identifier of the photovoltaic module where the monitor is located.
The component monitoring system disclosed in this embodiment, when the system enters the identification mode, sends a parameter acquisition instruction to each monitor, so that each monitor acquires a preset parameter value of the photovoltaic component where the monitor is located, and records the sampling time of the preset parameter value, because each monitor acquires the preset parameter value and the sampling time of the photovoltaic component where the monitor is located under normal conditions, and also acquires the preset parameter value and the sampling time of the corresponding photovoltaic component after disturbance is applied, the corresponding sampling time of the photovoltaic component where the monitor is located when disturbance is applied can be determined according to the data acquired by each monitor, and because each photovoltaic component is disturbed according to the sequence of the physical positions, the relative physical position of the photovoltaic component where each monitor is located can be determined according to the sequence of the sampling time when the photovoltaic component where the monitor is located is disturbed, the automatic identification of the physical position of the photovoltaic module is realized, the problem that errors are easily caused by manual recording of the physical position of the photovoltaic module is avoided, and the identification efficiency is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (13)
1. A method for identifying physical positions of photovoltaic modules is applied to a host in a module monitoring system, the module monitoring system further comprises monitors deployed on the respective photovoltaic modules, each monitor corresponds to at least one photovoltaic module, and the method comprises the following steps:
under the condition that the system enters into the recognition mode, sending a parameter acquisition instruction to each monitor to control each monitor to continuously acquire the preset parameter value of the photovoltaic module and recording the sampling time of the preset parameter value, wherein the control of each monitor to continuously acquire the preset parameter value of the photovoltaic module and recording the sampling time of the preset parameter value comprises the following steps: acquiring preset parameter values and sampling time of the photovoltaic module under normal conditions, and acquiring the preset parameter values and the sampling time of the corresponding photovoltaic module after disturbance is applied;
after determining that each photovoltaic module is disturbed according to the sequence of the physical positions, acquiring the preset parameter value acquired by each monitor and the sampling time of the preset parameter value;
and determining the relative physical position of the photovoltaic module where each monitor is located according to the sequence of the sampling time corresponding to the fluctuation of the preset parameter value acquired by each monitor.
2. The method according to claim 1, wherein if each of the monitors has a clock function, the sending a parameter collecting instruction to each of the monitors comprises:
and sending a parameter acquisition instruction for instructing to start a clock function and continuously acquiring the preset parameter value of the photovoltaic module to each monitor, so as to control each monitor to record the sampling time of the preset parameter value through clock time.
3. The method of claim 1, wherein if each of the monitors does not have a clock function, the sending a parameter acquisition command to each of the monitors comprises:
and sending a parameter acquisition instruction for instructing to start a counting function and continuously acquiring preset parameter values of the photovoltaic module to each monitor, so as to control each monitor to record the sampling time of the preset parameter values through the time represented by counting.
4. The method of claim 1, wherein determining that the individual photovoltaic modules are perturbed in the order of physical locations when the individual photovoltaic modules are perturbed by creating a moving shadow over the individual photovoltaic modules in the order of physical locations comprises:
and after receiving the disturbance application completion instruction, determining that the disturbance is applied to each photovoltaic assembly according to the sequence of the physical positions.
5. The method of claim 1, wherein when the disturbance is applied to each photovoltaic module by providing a barrier at the head or tail of the string of photovoltaic modules comprising each photovoltaic module, the system enters an identification mode after power-on, and the determining that each photovoltaic module is subjected to the disturbance in the order of physical locations comprises:
and when the time length of the system entering the identification mode reaches the preset time length, determining that the disturbance is applied to each photovoltaic module according to the sequence of the physical positions.
6. The method of claim 1, wherein prior to the system entering the recognition mode, the method further comprises:
acquiring the identifier of each monitor and the identifiers of the photovoltaic modules installed according to the sequence of the physical positions;
after the determining the relative physical location of the photovoltaic module where each of the monitors is located, the method further comprises:
and determining the identifier of the photovoltaic module where each monitor is located according to the sequence of the physical positions of the photovoltaic modules when the photovoltaic modules are installed and the relative physical position of the photovoltaic module where each monitor is located, and binding the identifier of each monitor and the identifier of the photovoltaic module where the monitor is located.
7. An apparatus for identifying physical locations of photovoltaic modules, the apparatus being applied to a host in a module monitoring system, the module monitoring system further including monitors disposed on respective photovoltaic modules, each of the monitors corresponding to at least one photovoltaic module, the apparatus comprising:
the instruction sending unit is used for sending a parameter acquisition instruction to each monitor under the condition that the system enters the identification mode so as to control each monitor to continuously acquire the preset parameter value of the photovoltaic module and record the sampling time of the preset parameter value, wherein each monitor is controlled to continuously acquire the preset parameter value of the photovoltaic module and record the sampling time of the preset parameter value, and the instruction sending unit is used for sending a parameter acquisition instruction to each monitor so as to control each monitor to continuously acquire the preset parameter value of the photovoltaic module and record the sampling time of the preset parameter value and comprises: acquiring preset parameter values and sampling time of the photovoltaic module under normal conditions, and acquiring the preset parameter values and the sampling time of the corresponding photovoltaic module after disturbance is applied;
the data acquisition unit is used for acquiring the preset parameter value acquired by each monitor and the sampling time of the preset parameter value after determining that each photovoltaic module is subjected to disturbance according to the sequence of physical positions;
and the physical position determining unit is used for determining the relative physical position of the photovoltaic module where each monitor is located according to the sequence of the sampling time corresponding to the fluctuation of the preset parameter value acquired by each monitor.
8. The apparatus of claim 7, wherein if each of the monitors has a clock function, the instruction sending unit is specifically configured to:
and sending a parameter acquisition instruction for instructing to start a clock function and continuously acquiring the preset parameter value of the photovoltaic module to each monitor, so as to control each monitor to record the sampling time of the preset parameter value through clock time.
9. The apparatus according to claim 7, wherein if each of the monitors does not have a clock function, the instruction sending unit is specifically configured to:
and sending a parameter acquisition instruction for instructing to start a counting function and continuously acquiring preset parameter values of the photovoltaic module to each monitor, so as to control each monitor to record the sampling time of the preset parameter values through the time represented by counting.
10. The apparatus according to claim 7, wherein the data acquisition unit is specifically configured to, when applying the perturbation to each photovoltaic module by making a moving shadow over each photovoltaic module in the order of physical locations:
and after receiving the disturbance application completion instruction, determining that the disturbance is applied to each photovoltaic assembly according to the sequence of the physical positions.
11. The device according to claim 7, wherein when disturbance is applied to each photovoltaic module by providing a barrier at the head or tail of a string of photovoltaic modules comprising each photovoltaic module, the system enters an identification mode after power-on, and the data acquisition unit is specifically configured to:
and when the time length of the system entering the identification mode reaches the preset time length, determining that the disturbance is applied to each photovoltaic module according to the sequence of the physical positions.
12. The apparatus of claim 7, further comprising:
the identification acquisition unit is used for acquiring the identification of each monitor and the identification of each photovoltaic module which is installed according to the sequence of physical positions;
and the binding unit is used for determining the identifier of the photovoltaic module where each monitor is located according to the sequence of the physical positions when each photovoltaic module is installed and the relative physical position of the photovoltaic module where each monitor is located after determining the relative physical position of the photovoltaic module where each monitor is located, and binding the identifier of each monitor and the identifier of the photovoltaic module where each monitor is located.
13. The component monitoring system is characterized by comprising a host and monitors arranged on each photovoltaic component, wherein each monitor corresponds to at least one photovoltaic component;
the host is in communication connection with each monitor;
the host is used for executing the identification method of the physical position of the photovoltaic module as claimed in any one of claims 1-6.
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