CN116032326B - Signal control method suitable for photovoltaic equipment, electronic equipment and storage medium - Google Patents
Signal control method suitable for photovoltaic equipment, electronic equipment and storage medium Download PDFInfo
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Abstract
The invention provides a signal control method, electronic equipment and a storage medium suitable for photovoltaic equipment. The control method comprises the following steps: in each photovoltaic system, a carrier signal sent by a communication signal generator to a communication signal receiver comprises a receiver control signal, and two adjacent receiver control signals sent by the communication signal generator are separated by a first random time interval; the receiver control signal is used for confirming whether the working state of the photovoltaic system is normal. According to the scheme, the adjacent two times of receiver control signals are separated by the first random time interval, the situation that the signals overlap and interfere each time in all the receiver control signals received by the communication signal receivers corresponding to the same photovoltaic system cannot occur, the situation that the communication signal receivers fail each time of receiving the signals cannot be generated, and the probability of out-of-control of the photovoltaic system is reduced.
Description
Technical Field
The present invention relates to the field of photovoltaic power generation technologies, and in particular, to a signal control method suitable for a photovoltaic device, an electronic device, and a storage medium.
Background
The photovoltaic device is formed by a plurality of photovoltaic systems, one photovoltaic system in turn comprising at least one photovoltaic panel. In each photovoltaic system, the working state of each photovoltaic panel in the photovoltaic system is controlled by the signals sent by the communication signal generator. Specifically, the communication signal generator corresponding to each photovoltaic panel sends a control signal to the corresponding communication signal receiver, the communication signal receiver sends the control signal to the photovoltaic controller corresponding to the photovoltaic panel, and the photovoltaic controller controls the corresponding photovoltaic panel according to the control signal so as to control the connection or disconnection of the photovoltaic panel.
At present, information interaction between the communication signal generator and the communication signal receiver can be completed by utilizing a SunSpc communication protocol. In the SunSpc communications protocol, the "heartbeat" signal is used for information interaction. When the heartbeat signal sent by the communication signal generator disappears, the photovoltaic controller controls the photovoltaic panel to realize safe disconnection.
The control signal sent by the communication signal generator to the communication signal receiver is a high-frequency signal which is transmitted through a photovoltaic wire after high-frequency modulation, namely power line carrier communication. Because of the high frequency signal, electromagnetic radiation is emitted through long-distance photovoltaic line transmission, and the communication signal receiver corresponding to one photovoltaic system may receive signals sent by the communication signal generators corresponding to other photovoltaic systems under the influence of the electromagnetic radiation.
When the control signals sent by the communication signal generators are partially overlapped, signal superposition is generated. Referring to fig. 1, a signal (signal-1) sent by a communication signal generator a and a signal (signal-2) sent by a communication signal generator B are partially overlapped, and the overlapped signals may cause failure in receiving signals by communication signal receivers corresponding to the communication signal generator a and the communication signal generator B. And, the communication signal generator A and the communication signal generator B can send control signals for a plurality of times. Because the time interval between two adjacent signals is fixed when the communication signal generator A and the communication signal generator B send signals, the situation that the control signals sent by the communication signal generator A and the communication signal generator B each time and the corresponding communication signal receivers fail to be received can be caused, and the loss of control of the photovoltaic panel is further caused.
Disclosure of Invention
The invention aims to solve the problem that a plurality of communication signal generators are overlapped to cause the out-of-control photovoltaic panel in the prior art.
In order to solve the problems, an embodiment of the invention discloses a signal control method suitable for a photovoltaic device, wherein the photovoltaic device comprises a plurality of photovoltaic systems, and each photovoltaic system comprises a respective communication signal generator and a communication signal receiver; and, the control method includes:
in each photovoltaic system, a carrier signal sent by a communication signal generator to a communication signal receiver comprises a receiver control signal, wherein two adjacent receiver control signals sent by the communication signal generator are separated by a first random time interval; and, the receiver control signal is used for confirming whether the working state of the photovoltaic system is normal.
By adopting the scheme, as the time intervals between two adjacent receiver control signals sent by the corresponding communication signal generators of each photovoltaic system are different, the receiver control signals sent by the communication signal generators of the photovoltaic system are not interfered by the receiver control signals sent by the communication signal generator of the other photovoltaic system, and the problem of signal superposition is avoided. Even another photovoltaic system can influence the photovoltaic system, the communication signal receiver of the photovoltaic system also receives a normal receiver control signal which is not overlapped with the communication signal generator of the other photovoltaic system, and further the problem that the photovoltaic panel is out of control is not caused.
According to another embodiment of the present invention, a signal control method for a photovoltaic device according to an embodiment of the present invention is disclosed, wherein, in at least two adjacent photovoltaic systems, a first time node at which a communication signal generator of one photovoltaic system starts to transmit a receiver control signal is separated from a second time node at which a communication signal generator of another photovoltaic system starts to transmit a receiver control signal by a second random time interval.
By adopting the scheme, the time of the receiver control signal sent by the communication signal generator of one photovoltaic system is separated from the time of the receiver control signal sent by the communication signal generator of other photovoltaic systems adjacent to the photovoltaic system by the second random time interval, so that the first receiver control signals sent by the communication signal generators of two adjacent photovoltaic systems are staggered in time, and further the communication signal receiver corresponding to the communication signal generator can receive the correct receiver control signal in the shortest time, thereby improving the control efficiency of the photovoltaic panel.
According to another specific embodiment of the present invention, in the signal control method for a photovoltaic device disclosed in the present invention, in at least two adjacent photovoltaic systems, a first random time interval corresponding to two adjacent receiver control signals sent by a communication signal generator of one photovoltaic system is different from a first random time interval corresponding to two adjacent receiver control signals sent by a communication signal generator of another photovoltaic system.
By adopting the scheme, because the first random time intervals corresponding to the adjacent two times of receiver control signals sent by the communication signal generator are different in the adjacent photovoltaic systems, even if the receiver control signals of the first times are overlapped, the time for the subsequent non-overlapped and correct receiver control signals is shorter, and the control efficiency of the photovoltaic panel can be improved.
According to another specific embodiment of the invention, the signal control method suitable for the photovoltaic equipment disclosed by the embodiment of the invention has the advantages that the time length of the receiver control signals of all the photovoltaic systems is equal; and in at least two adjacent photovoltaic systems, the range of the second random time interval is larger than the time length of the single receiver control signal and smaller than the time length of the first random time interval between the two receiver control signals which are firstly transmitted by the communication signal generator of one photovoltaic system.
By adopting the scheme, the second random time interval can be accurately determined on the basis of avoiding signal overlapping.
According to another specific embodiment of the invention, the signal control method suitable for the photovoltaic equipment disclosed by the embodiment of the invention has the advantages that the time lengths of the receiver control signals of the same photovoltaic system are equal; the lengths of the receiver control signals of different photovoltaic systems are not equal; and in at least two adjacent photovoltaic systems, the range of the second random time interval is larger than the time length of the single receiver control signal of one photovoltaic system and smaller than the sum of the time length of the first random time interval between the two receiver control signals transmitted first by the communication signal generator of one photovoltaic system and the time length of the receiver control signal transmitted first, and then the time length of the receiver control signal transmitted first by the other photovoltaic system is subtracted.
By adopting the scheme, the second random time interval can be accurately determined on the basis of avoiding signal overlapping.
According to another specific embodiment of the invention, the signal control method suitable for the photovoltaic equipment disclosed by the embodiment of the invention has the advantages that the time length of the receiver control signals corresponding to each photovoltaic system is not equal; and in at least two adjacent photovoltaic systems, the range of the second random time interval is larger than the time length of the first receiver control signal which is transmitted first by the communication signal generator of one photovoltaic system and smaller than the sum of the time length of the first random time interval between the two receiver control signals which are transmitted first by the communication signal generator of one photovoltaic system and the time length of the first receiver control signal which is transmitted first, and then the time length of the receiver control signal which is transmitted first by the other photovoltaic system is subtracted.
By adopting the scheme, the second random time interval can be accurately determined on the basis of avoiding signal overlapping.
According to another specific embodiment of the present invention, the signal control method for a photovoltaic device disclosed in the embodiment of the present invention, the communication signal generator of each photovoltaic system sends a control signal to the corresponding communication signal receiver in a carrier communication manner via a photovoltaic cable; and the communication signal receiver sends the control signal to the photovoltaic controllers of the corresponding photovoltaic panels, and the photovoltaic controllers control the corresponding photovoltaic panels according to the control signal so as to control the connection or disconnection of the photovoltaic panels.
According to another embodiment of the present invention, the signal control method for a photovoltaic device disclosed in the embodiment of the present invention further comprises at least one photovoltaic panel and at least one communication signal receiver; and, each communication signal receiver corresponds to one or more photovoltaic panels; when one communication signal receiver corresponds to one photovoltaic panel, the photovoltaic panel and the corresponding communication signal receiver are integrated into a whole structure.
By adopting the scheme, the appearance of the whole photovoltaic system is simpler, the connecting wire harness between the photovoltaic panel of the photovoltaic system and the communication signal receiver can be saved, and the signal transmission efficiency is higher and the energy loss is less.
The embodiment of the invention discloses an electronic device, which comprises:
a memory for storing a computer program, the computer program comprising program instructions;
a processor for executing program instructions to cause an electronic device to perform the signal control method as described in any of the embodiments above as being applicable to a photovoltaic device.
Embodiments of the present invention disclose a computer readable storage medium storing a computer program comprising program instructions to be executed by an electronic device to cause the electronic device to perform a signal control method suitable for a photovoltaic device as described in any of the embodiments above.
The beneficial effects of the invention are as follows:
according to the signal control method suitable for the photovoltaic equipment, as the time intervals between two adjacent receiver control signals sent by the communication signal generators of one photovoltaic system are different, the receiver control signals sent by the communication signal generators of the photovoltaic system are not interfered by the receiver control signals sent by the communication signal generators of the other photovoltaic system for a certain time or a certain number of times, and the problem of signal superposition is avoided. Even another photovoltaic system can influence the photovoltaic system, the communication signal receiver of the photovoltaic system also receives a normal receiver control signal which is not overlapped with a receiver control signal sent by the communication signal generator of the other photovoltaic system, and further the problem that the photovoltaic panel is out of control is not caused.
Further, the time of the receiver control signal sent by the communication signal generator of one photovoltaic system is separated from the time of the receiver control signal sent by the communication signal generator of other photovoltaic systems adjacent to the photovoltaic system by a second random time interval, so that the first receiver control signals sent by the communication signal generators of two adjacent photovoltaic systems are staggered in time, and further the communication signal receiver corresponding to the communication signal generator can receive the correct receiver control signal in the shortest time, thereby improving the control efficiency and accuracy of the photovoltaic panel.
Drawings
FIG. 1 is a signal diagram of a prior art control of a photovoltaic panel;
fig. 2 is a schematic structural diagram of a photovoltaic device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a photovoltaic system according to an embodiment of the present invention;
FIG. 4 is a schematic signal diagram of controlling a photovoltaic system according to an embodiment of the present invention;
FIG. 5 is another signal diagram for controlling a photovoltaic system according to an embodiment of the present invention;
FIG. 6 is another signal diagram for controlling a photovoltaic system according to an embodiment of the present invention;
fig. 7 is another signal schematic diagram for controlling a photovoltaic system according to an embodiment of the present invention.
Reference numerals illustrate:
1. a photovoltaic system; 2. a communication signal generator; 3. a communication signal receiver; 4. a photovoltaic cable; 5. a photovoltaic panel; 6. an inverter.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present invention with specific examples. While the description of the invention will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the invention described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the invention. The following description contains many specific details for the purpose of providing a thorough understanding of the present invention. The invention may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the invention. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Example 1:
in order to solve the problem that a plurality of communication signal generators in the prior art are overlapped and cause the photovoltaic panel to be out of control, the embodiment provides a signal control method suitable for photovoltaic equipment.
First, the structure of the photovoltaic device will be described with reference to fig. 2. The photovoltaic apparatus comprises a plurality of photovoltaic systems 1. The number of photovoltaic systems 1 is not limited in this embodiment. It should be noted that, the plurality of photovoltaic systems 1 of the photovoltaic apparatus are merely distributed at relatively close distances, and do not have any communication connection or electrical connection relationship.
Next, the structure of the photovoltaic system 1 will be described with reference to fig. 3. Each photovoltaic system 1 comprises a respective communication signal generator 2 and communication signal receiver 3. The communication signal generator 2 may be any device capable of providing an electrical signal of frequency, waveform and output level, which is capable of generating and modulating a carrier signal of high frequency. The communication signal generator 2 may be, for example, an LC-tuned oscillator, which is not substantially different from the high-frequency signal generator in the prior art, and the structure of the communication signal generator is not repeated in this embodiment. The communication signal receiver 3 may be any device capable of receiving a high frequency signal. For example, the device may be an RF receiver, which is not substantially different from the prior art RF receiver, and the structure of the device is not described in detail in this embodiment. It should be noted that the communication signal generator 2 of each photovoltaic system 1 transmits a carrier signal to the corresponding communication signal receiver 3 via the photovoltaic cable 4. The photovoltaic cable 4 is also a special cable applied to a solar energy system. The present embodiment is not limited to a specific model thereof.
More specifically, referring to fig. 3, each photovoltaic system 1 further comprises at least one photovoltaic panel 5 and at least one communication signal receiver 3. The present embodiment is also not limited as to the number of photovoltaic panels 5. It will be appreciated that each photovoltaic panel 5 has a corresponding photovoltaic controller (not shown). The photovoltaic controller is in communication connection with the communication signal receiver 3 to receive the control signal sent by the communication signal receiver 3, and then the connection or disconnection of each photovoltaic panel 5 is controlled according to the control signal. And, each communication signal receiver 3 corresponds to one or more photovoltaic panels 5. The case shown in fig. 3 is that one communication signal receiver 3 corresponds to one photovoltaic panel 5, and in fact, two, three or four photovoltaic panels 5 each receive signals by using one communication signal receiver 3. Each photovoltaic system 1 comprises an inverter 6, the communication signal generator 2 is arranged on one side close to the inverter 6, and the communication signal receiver 3 is arranged on one side of the photovoltaic panel 5.
Further, when one communication signal receiver 3 corresponds to one photovoltaic panel 5, the photovoltaic panel 5 is integrated with the corresponding communication signal receiver 3 into a unitary structure. With such a way, the appearance of the whole photovoltaic system 1 can be more concise, and the connecting wire harness between the photovoltaic panel 5 and the communication signal receiver 3 of the photovoltaic system 1 can be saved, so that the signal transmission efficiency is higher and the energy loss is less.
It should be noted that, in this embodiment, the electrical connection structure of each photovoltaic system 1 of the photovoltaic apparatus is the same. The control signal sent by the communication signal generator 2 of each photovoltaic system 1 can only be received by the communication signal receiver 3 of the photovoltaic system 1 and control the corresponding photovoltaic panel 5 of the photovoltaic system 1. However, as described in the foregoing, when each of the photovoltaic systems 1 is located close to each other, electromagnetic radiation is emitted when the long-distance photovoltaic cable 4 transmits a high-frequency signal, and thus the communication signal receiver 3 of one photovoltaic system 1 may receive a signal emitted from the communication signal generator 2 of another photovoltaic system 1. When the signal sent by the communication signal generator 2 of another photovoltaic system 1 interferes with the signal sent by the communication signal generator 2 of the present photovoltaic system 1, the communication signal receiver 3 corresponding to the present photovoltaic system 1 may not generate correct information for controlling the photovoltaic panel 5. In order to avoid the above problems, the present solution proposes a signal control method suitable for a photovoltaic device, which will be described in detail below.
Further, in the signal control method applicable to a photovoltaic device according to the present invention, the control method includes:
in each photovoltaic system 1, the carrier signal transmitted by the communication signal generator 2 to the communication signal receiver 3 contains a receiver control signal. In which, referring to fig. 4, two adjacent receiver control signals transmitted from the communication signal generator 2 are separated by a first random time interval t 1. And, the receiver control signal is used for confirming whether the working state of the photovoltaic system 1 is normal. Specifically, in this embodiment, the receiver control signal is a heartbeat signal, that is, the communication signal generator 2 sends a small packet of data to the interconnected communication signal receivers 3 at intervals. In fact, the receiver control signal may also be another type of signal, as long as the photovoltaic panel 5 can be controlled. When the communication signal receiver 3 cannot receive the receiver control signal sent by the communication signal generator 2 after a certain time range, the communication signal receiver 3 sends a control signal to the photovoltaic controller to control the photovoltaic panel 5 to be disconnected. It should be noted that, the foregoing certain time range in which the receiver control signal cannot be received is a longer time range, which is at least longer than 1.5 times to 2 times of the time interval between two adjacent receiver control signals, so that erroneous judgment of the communication signal receiver 3 caused by setting the certain time range to be shorter can be avoided, and further, errors occur in control of the photovoltaic panel 5. For example, if the time interval between two adjacent receiver control signals is 0.1ms to 0.3ms, it may be set that when the communication signal receiver 3 does not receive the receiver control signal transmitted by the communication signal generator 2 after 0.5ms, a control signal for disconnecting the photovoltaic panel 5 is transmitted to the photovoltaic controller. It should be noted that the above examples are only illustrative of the time interval of the receiver control signal and the time of a certain time range, and those skilled in the art may set the time boundary according to actual needs, but the time should not be too long, otherwise the control time of the photovoltaic panel 5 is prolonged.
It should be noted that, the adjacent two receiver control signals are separated by a first random time interval, and the first random time interval may be an algorithm stored in the communication signal generator 2 in advance, and may be inserted with a delay sequence after each time the receiver control signal is sent, where the time of the delay sequence is random, so that the interval time of the original adjacent two receiver control signals sent by the communication signal generator 2 is changed into different intervals.
Referring to fig. 1, when the interval time between two adjacent receiver control signals is the same, the receiver control signal sent by the communication signal generator 2 of one photovoltaic system 1 is easily generated, and each time the receiver control signal sent by the communication signal generator 2 of the other photovoltaic system 1 is interfered by the receiver control signal, so that the signal superposition problem occurs to the receiver control signal each time, and the receiver control signal sent by the communication signal generator 2 cannot be normally received by the communication signal receiver 3.
In this scheme, referring to fig. 4, two adjacent receiver control signals sent by the communication signal generator 2 are separated by a first random time interval t1, and even if signal superposition occurs in the receiver control signals of the first two times, the time interval between the two adjacent receiver control signals is different, and therefore, the receiver control signals sent by the communication signal generator 2 of the photovoltaic system 1 must not be interfered by the receiver control signals sent by the communication signal generator 2 of the other photovoltaic system 1 for a certain time or for a certain time, and the signal superposition problem will not occur. In this way, even if another photovoltaic system 1 affects the present photovoltaic system 1, the communication signal receiver 3 of the present photovoltaic system 1 receives a normal receiver control signal, which is not superimposed with the receiver control signal sent by the communication signal generator 2 of the other photovoltaic system 1, so that the problem of out of control of the photovoltaic panel 5 is not caused.
Further, in the signal control method for a photovoltaic apparatus according to the present invention, at least two adjacent photovoltaic systems 1, a first time node at which the communication signal generator 2 of one photovoltaic system 1 starts transmitting the receiver control signal is separated from a second time node at which the communication signal generator 2 of the other photovoltaic system starts transmitting the receiver control signal by a second random time interval. That is, when the communication signal generator 2 of the plurality of photovoltaic systems 1 transmits the receiver control signal, the time at which the communication signal generator 2 of one photovoltaic system 1 transmits the receiver control signal is different from the time at which the communication signal generator 2 of the other photovoltaic system 1 adjacent to the photovoltaic system 1 transmits the receiver control signal. Specifically, when the photovoltaic system 1 is the photovoltaic system 1 located at both ends of the photovoltaic apparatus, the number of other photovoltaic systems 1 adjacent to the photovoltaic system 1 is only one. And when the photovoltaic system 1 is a photovoltaic system 1 located in the middle of the photovoltaic apparatus, the number of other photovoltaic systems 1 adjacent to the photovoltaic system 1 is two. As for the photovoltaic system 1 adjacent to the second photovoltaic system 1, the time for starting to send the receiver control signal and the time for starting to send the receiver control signal of the photovoltaic system 1 do not need to be staggered, firstly, because the distance between the two groups of photovoltaic systems 1 is far, the possibility and influence of signal superposition are small, and secondly, the control efficiency of a plurality of photovoltaic systems 1 in the photovoltaic equipment is ensured.
In this way, the time for transmitting the receiver control signal by the communication signal generator 2 of one photovoltaic system 1 is separated from the time for transmitting the receiver control signal by the communication signal generator 2 of the other photovoltaic system 1 adjacent to the photovoltaic system 1 by the second random time interval, so that the first time of receiver control signals transmitted by the communication signal generators 2 of the two adjacent photovoltaic systems 1 are staggered in time, and further, the communication signal receiver 3 corresponding to the communication signal generator 2 can receive the correct receiver control signal in the shortest time, thereby improving the control efficiency of the photovoltaic panel 5.
In addition, in this embodiment, the time when the communication signal generator 2 of one photovoltaic system 1 sends the receiver control signal and the time when the communication signal generator 2 of the other photovoltaic system 1 adjacent to the photovoltaic system 1 send the receiver control signal may be further separated by a second random time interval on the basis that the adjacent two times of the receiver control signals sent by the communication signal generator 2 of the same photovoltaic system 1 are separated by the first random time interval. In this way, the corresponding communication signal receiver 3 of the photovoltaic system 1 can receive the correct receiver control signal a plurality of times in succession on the basis of correctly receiving the first receiver control signal transmitted by the communication signal generator 2. When the communication signal receiver 3 corresponding to the photovoltaic panel 5 can generate the control signal after receiving the valid receiver control signals for a plurality of times, the mode is more conducive to accurately and efficiently controlling the photovoltaic panel 5 later.
It should be noted that, the second random time interval is the same as the first random time interval, and may be an algorithm stored in the communication signal generator 2 in advance, and it may be inserted with a delay sequence before the communication signal generator 2 starts to send the receiver control signal, where the time of the delay sequence is random, so that the time nodes of the communication signal generators 2 corresponding to two adjacent photovoltaic systems 1 start to send the receiver control signal are completely staggered. In particular, the communication signal generators 2 corresponding to at least two adjacent photovoltaic systems 1 in the photovoltaic apparatus may be communicatively connected. When the communication signal generator 2 of one photovoltaic system 1 sends information to the corresponding communication signal receiver 3, the communication signal generator 2 corresponding to the adjacent photovoltaic system 1 may send information with a time node at which it starts to send a receiver control signal. When the communication signal generator 2 corresponding to the adjacent photovoltaic system 1 receives the information, according to the received information of the time node when the communication signal generator 2 corresponding to the photovoltaic system 1 starts to send the receiver control signal, the time node when the communication signal generator 2 starts to send the receiver control signal can be controlled, so that the first receiver control signals sent by the two communication signal generators 2 are staggered.
Further, in the signal control method suitable for a photovoltaic device according to the present invention, in at least two adjacent photovoltaic systems 1, the time length of the first random time interval corresponding to the adjacent twice receiver control signal sent by the communication signal generator 2 of one photovoltaic system 1 is different from the time length of the first random time interval corresponding to the adjacent twice receiver control signal sent by the communication signal generator 2 of the other photovoltaic system 1. For example, the communication signal generator 2 of the first group of photovoltaic systems 1 and the communication signal generator 2 of the second group of photovoltaic systems 1 each transmit a cubic receiver control signal. Wherein in the first group of photovoltaic systems 1, the first random time interval between the first and second receiver control signals is 0.2ms, and the first random time interval between the second and third receiver control signals is 0.1ms; then, the first random time interval between the first and second secondary receiver control signals in the second set of photovoltaic systems 1 may be set to 0.15ms, and the first random time interval between the second and third secondary receiver control signals is 0.25ms. In this way, since the first random time intervals corresponding to the adjacent two receiver control signals sent by the communication signal generator 2 are different in the adjacent photovoltaic systems 1, even if signal overlapping occurs in the receiver control signals of the first few times, the time for the subsequent non-overlapping and correct receiver control signals is shorter, which can also improve the control efficiency of the photovoltaic panel 5.
Further, in one embodiment according to the present invention, referring to fig. 5, the lengths of time of the receiver control signals of each photovoltaic system 1 are equal. That is, the length of time that all receiver control signals are issued by all photovoltaic systems 1 in the photovoltaic apparatus is equal. In addition, in at least two adjacent photovoltaic systems 1, the range of the second random time interval t2 is larger than the time length of the single receiver control signal and smaller than the time length of the first random time interval t1 between the two receiver control signals sent by the communication signal generator 2 of one photovoltaic system 1 first.
For example, the length of time of the single receiver control signal of each photovoltaic system 1 is 0.3ms. In the first group of photovoltaic systems 1, among the multiple receiver control signals signal-1 sent by the communication signal generator 2, the receiver control signal starts to be sent at the 0 th s, and the time length of the first random time interval t1 between the two receiver control signals which are sent at the beginning is 0.5ms, so that among the multiple receiver control signals signal-2 sent by the communication signal generator 2 of the second group of photovoltaic systems 1 adjacent to the first group of photovoltaic systems 1, the time node for sending the receiver control signal at the first time and the time interval of the 0 th s (i.e., the second random time interval t 2) can be in the range of 0.3ms to 0.5ms, i.e., in the time range of 0.3ms to 0.5ms, and the communication signal generators 2 of the second group of photovoltaic systems 1 can all start to send the receiver control signal. If the first group of photovoltaic systems 1 also has an adjacent third group of photovoltaic systems 1, the time range in which the communication signal generator 2 of the third group of photovoltaic systems 1 starts transmitting the receiver control signal is also in the time range of 0.3ms to 0.5 ms.
In this way, the second random time interval t2 can be accurately determined.
Further, in another embodiment according to the present invention, referring to fig. 6, the time lengths of the receiver control signals of the same photovoltaic system 1 are all equal; the lengths of the receiver control signals of the different photovoltaic systems 1 are not equal. And, in at least two adjacent photovoltaic systems 1, the range of the second random time interval t2 is larger than the time length of the single receiver control signal of one photovoltaic system 1 and smaller than the sum of the time length of the first random time interval t1 between the two receiver control signals transmitted first by the communication signal generator 2 of one photovoltaic system 1 and the time length of the receiver control signal transmitted first, and then the time length of the receiver control signal transmitted first by the other photovoltaic system 1 is subtracted.
For example, the time length of the single receiver control signals of the first group of photovoltaic systems 1 is 0.1ms. The length of time of the single receiver control signal of the second set of photovoltaic systems 1 is 0.2ms. In the first group of photovoltaic systems 1, among the multiple receiver control signals signal-1 sent by the communication signal generator 2, the receiver control signal starts to be sent at the 0 th s, and the time length of the first random time interval t1 between the two receiver control signals which are sent at the beginning is 0.5ms, so that among the multiple receiver control signals signal-2 sent by the communication signal generator 2 of the second group of photovoltaic systems 1 adjacent to the first group of photovoltaic systems 1, the time node for sending the receiver control signal at the first time and the time interval of the 0 th s (i.e., the second random time interval t 2) can be in the range of 0.1ms to 0.4ms, i.e., in the time range of 0.1ms to 0.4ms, and the communication signal generators 2 of the second group of photovoltaic systems 1 can all start to send the receiver control signal. If the first group of photovoltaic systems 1 also has an adjacent third group of photovoltaic systems 1, the time range in which the communication signal generator 2 of the third group of photovoltaic systems 1 starts transmitting the receiver control signal is also in the time range of 0.1ms to 0.4ms.
In this way, the second random time interval t2 can also be determined accurately. Also, the first receiver control signal of another photovoltaic system 1 adjacent to the first group of photovoltaic systems 1 may be between the first two receiver control signals of the first group of photovoltaic systems 1 without overlapping interference with any of the receiver control signals.
Further, in another embodiment according to the present invention, referring to fig. 7, the lengths of time of the receiver control signals corresponding to each of the photovoltaic systems 1 are not equal. In addition, in at least two adjacent photovoltaic systems 1, the range of the second random time interval t2 is larger than the time length of the first-time receiver control signal transmitted first by the communication signal generator 2 of one photovoltaic system 1 and smaller than the sum of the time length of the first random time interval t1 and the time length of the first-time receiver control signal transmitted first by the communication signal generator 2 of one photovoltaic system 1 and the time length of the first-time receiver control signal transmitted first by the other photovoltaic system 1.
For example, the time length of the receiver control signal of the first group of photovoltaic systems 1 is 0.1ms, 0.4ms and 0.2ms in this order. The time length of the receiver control signals of the second set of photovoltaic systems 1 is 0.2ms, 0.3ms and 0.4ms in sequence. In the first group of photovoltaic systems 1, among the multiple receiver control signals signal-1 sent by the communication signal generator 2, the receiver control signal starts to be sent at the 0 th s, and the time length of the first random time interval t1 between the two receiver control signals which are sent at the beginning is 0.4ms, so that among the multiple receiver control signals signal-2 sent by the communication signal generator 2 of the second group of photovoltaic systems 1 adjacent to the first group of photovoltaic systems 1, the time node for sending the receiver control signal at the first time and the time interval of the 0 th s (i.e., the second random time interval t 2) can be in the range of 0.1ms to 0.3ms, i.e., in the time range of 0.1ms to 0.3ms, and the communication signal generators 2 of the second group of photovoltaic systems 1 can all start to send the receiver control signal. If the first group of photovoltaic systems 1 also has an adjacent third group of photovoltaic systems 1, the time range in which the communication signal generator 2 of the third group of photovoltaic systems 1 starts transmitting the receiver control signal is also in the time range of 0.1ms to 0.3ms.
In this way, the second random time interval t2 can be accurately determined on the basis of avoiding signal overlapping, so that the control efficiency and accuracy of the photovoltaic panel are improved.
Example 2:
based on the above signal control method suitable for the photovoltaic device, the embodiment provides an electronic device, which may be a terminal and includes a memory and a processor.
Wherein the memory is for storing a computer program comprising program instructions. The processor is configured to execute the program instructions to cause the electronic device to perform the signal control method applicable to a photovoltaic device as described in the above embodiments.
In particular, the processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the electronic device is used for conducting wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies.
Example 3:
based on the above-mentioned signal control method suitable for the photovoltaic device, the present embodiment further provides a computer readable storage medium, where the computer readable storage medium includes a stored program, and when the program runs, the device where the computer readable storage medium is controlled to execute the signal control method suitable for the photovoltaic device as described in the above embodiment.
The computer readable storage medium may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read only memory), an EPROM, a hard disk, or a ROM. Optionally, the computer readable storage medium comprises a non-volatile computer readable medium (non-transitory computer-readable storage medium). The computer readable storage medium has storage space for program code to perform any of the method steps described above. The program code can be read from or written to one or more computer program products. The program code may be compressed, for example, in a suitable form.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the invention with reference to specific embodiments, and it is not intended to limit the practice of the invention to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present invention.
Claims (6)
1. A signal control method suitable for a photovoltaic device, wherein the photovoltaic device comprises a plurality of photovoltaic systems, each photovoltaic system comprising a respective communication signal generator and communication signal receiver; and is also provided with
The control method comprises the following steps:
in each photovoltaic system, the carrier signal sent by the communication signal generator to the communication signal receiver comprises a receiver control signal, wherein two adjacent times of the receiver control signals sent by the communication signal generator are separated by a first random time interval; and is also provided with
The receiver control signal is used for confirming whether the working state of the photovoltaic system is normal or not;
in at least two adjacent photovoltaic systems, a first time node at which the communication signal generator of one photovoltaic system starts to send the receiver control signal is separated from a second time node at which the communication signal generator of the other photovoltaic system starts to send the receiver control signal by a second random time interval; and is also provided with
The control method further includes any one of the following three a, b, and c:
a. the time length of the receiver control signals of the photovoltaic systems is equal; and in at least two adjacent photovoltaic systems, the range of the second random time interval is larger than the time length of the receiver control signal for a single time and smaller than the time length of the first random time interval between two receiver control signals which are firstly transmitted by a communication signal generator of one photovoltaic system;
b. the time lengths of the receiver control signals of the same photovoltaic system are equal; the lengths of the receiver control signals of different photovoltaic systems are not equal; and in at least two adjacent photovoltaic systems, the range of the second random time interval is larger than the time length of the receiver control signal of one photovoltaic system and smaller than the sum of the time length of the first random time interval between the two receiver control signals transmitted first by the communication signal generator of one photovoltaic system and the time length of the receiver control signal transmitted first by the other photovoltaic system, and then the time length of the receiver control signal transmitted first by the other photovoltaic system is subtracted;
c. the time length of the receiver control signals corresponding to the photovoltaic systems is not equal; and in at least two adjacent photovoltaic systems, the range of the second random time interval is larger than the time length of the receiver control signal which is firstly transmitted by the communication signal generator of one photovoltaic system and smaller than the sum of the time length of the first random time interval between the two times of the receiver control signals which are firstly transmitted by the communication signal generator of the one photovoltaic system and the time length of the receiver control signal which is firstly transmitted by the other photovoltaic system, and then the time length of the receiver control signal which is firstly transmitted by the other photovoltaic system is subtracted.
2. The signal control method according to claim 1, wherein, in at least two adjacent photovoltaic systems, the first random time interval corresponding to the receiver control signal of two adjacent times transmitted by the communication signal generator of one of the photovoltaic systems is different from the time length of the first random time interval corresponding to the receiver control signal of two adjacent times transmitted by the communication signal generator of the other of the photovoltaic systems.
3. The signal control method according to claim 1 or 2, wherein the communication signal generator of the photovoltaic system transmits a control signal in a carrier communication manner to the corresponding communication signal receiver via a photovoltaic cable; and is also provided with
The communication signal receiver sends the control signal to a photovoltaic controller of a corresponding photovoltaic panel, and the photovoltaic controller controls the corresponding photovoltaic panel according to the control signal so as to control the connection or disconnection of the photovoltaic panel.
4. The signal control method for a photovoltaic device according to claim 1 or 2, wherein each of the photovoltaic systems further comprises at least one photovoltaic panel and at least one of the communication signal receivers; and is also provided with
Each of the communication signal receivers corresponds to one or more of the photovoltaic panels; wherein the method comprises the steps of
When one communication signal receiver corresponds to one photovoltaic panel, the photovoltaic panel and the corresponding communication signal receiver are integrated into a whole structure.
5. An electronic device, comprising:
a memory for storing a computer program, the computer program comprising program instructions;
a processor for executing the program instructions to cause the electronic device to perform the signal control method according to any one of claims 1-4, suitable for use with a photovoltaic device.
6. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program comprising program instructions that are executed by an electronic device to cause the electronic device to perform the signal control method applicable to a photovoltaic device according to any one of claims 1-4.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611346A (en) * | 1993-08-16 | 1997-03-18 | Polar Electro Oy | Method of interference-tolerant transmission of heartbeat signals |
| EP2983009A1 (en) * | 2014-08-08 | 2016-02-10 | Balluff GmbH | Operation of an optoelectronic sensor using a method for emitting light pulses |
| CN108427616A (en) * | 2017-02-14 | 2018-08-21 | 腾讯科技（深圳）有限公司 | background program monitoring method and monitoring device |
| CN109428342A (en) * | 2017-08-21 | 2019-03-05 | 浙江英达威芯电子有限公司 | A kind of photovoltaic system component control device |
| CN110865378A (en) * | 2019-11-08 | 2020-03-06 | 广州赛特智能科技有限公司 | Anti-crosstalk ultrasonic distance measuring device, system and method |
| CN111682646A (en) * | 2020-06-28 | 2020-09-18 | 阳光电源股份有限公司 | Electronic equipment communication system and method |
| CN112327147A (en) * | 2020-09-14 | 2021-02-05 | 南京铁道职业技术学院 | Input circuit for signal safety equipment |
| DE102021201577A1 (en) * | 2021-02-18 | 2022-08-18 | Fronius International Gmbh | Method and device for controlling the operation of photovoltaic modules |
| CN114938023A (en) * | 2022-04-13 | 2022-08-23 | 苏州恩易浦科技有限公司 | Photovoltaic system |
| CN115166760A (en) * | 2021-04-07 | 2022-10-11 | 上海禾赛科技有限公司 | Laser radar and ranging method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7525420B2 (en) * | 2001-11-02 | 2009-04-28 | Jerry L. McKinney | Environmental equipment alarm circuit verification system and method |
| US8897341B2 (en) * | 2011-06-28 | 2014-11-25 | Qualcomm Incorporated | System and method for testing timing operations of a pulse-based transceiver |
-
2022
- 2022-12-21 CN CN202211649688.7A patent/CN116032326B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611346A (en) * | 1993-08-16 | 1997-03-18 | Polar Electro Oy | Method of interference-tolerant transmission of heartbeat signals |
| EP2983009A1 (en) * | 2014-08-08 | 2016-02-10 | Balluff GmbH | Operation of an optoelectronic sensor using a method for emitting light pulses |
| CN108427616A (en) * | 2017-02-14 | 2018-08-21 | 腾讯科技（深圳）有限公司 | background program monitoring method and monitoring device |
| CN109428342A (en) * | 2017-08-21 | 2019-03-05 | 浙江英达威芯电子有限公司 | A kind of photovoltaic system component control device |
| CN110865378A (en) * | 2019-11-08 | 2020-03-06 | 广州赛特智能科技有限公司 | Anti-crosstalk ultrasonic distance measuring device, system and method |
| CN111682646A (en) * | 2020-06-28 | 2020-09-18 | 阳光电源股份有限公司 | Electronic equipment communication system and method |
| CN112327147A (en) * | 2020-09-14 | 2021-02-05 | 南京铁道职业技术学院 | Input circuit for signal safety equipment |
| DE102021201577A1 (en) * | 2021-02-18 | 2022-08-18 | Fronius International Gmbh | Method and device for controlling the operation of photovoltaic modules |
| CN115166760A (en) * | 2021-04-07 | 2022-10-11 | 上海禾赛科技有限公司 | Laser radar and ranging method |
| CN114938023A (en) * | 2022-04-13 | 2022-08-23 | 苏州恩易浦科技有限公司 | Photovoltaic system |
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|---|---|
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