Aging test device of photovoltaic data acquisition rod

Abstract

The utility model provides an aging test device for a photovoltaic data acquisition rod. The aging test device comprises a shell, an aging device and a cloud server, the internal space of the shell forms a test cavity; and a bearing platform is arranged in the test cavity and is used for being fixed on the photovoltaic data acquisition rod. According to the utility model, reliability and stability tests can be carried out on the photovoltaic data acquisition rod, repeated and batch tests can be carried out, and the blank in the prior art is filled.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaics, in particular to the field of aging of photovoltaic data acquisition rods. Background Art

[0002] As a key component in photovoltaic systems, photovoltaic data loggers (PV data loggers) collect power data generated by photovoltaic inverters, playing a vital role in monitoring, controlling, and optimizing PV systems. Their performance stability and reliability directly impact the overall performance and operational efficiency of the PV system. Burn-in testing of PV data loggers to assess their performance stability and reliability over long-term use is crucial for ensuring stable operation of the PV system. However, there are no reports of burn-in testing devices for PV data loggers.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The utility model provides an aging test device for a photovoltaic data collector to fill the gap in the prior art.

[0005] The utility model provides an aging test device for a photovoltaic data collector, comprising:

[0006] Housing, aging device and cloud server;

[0007] The internal space of the shell constitutes a test cavity; a carrying platform is provided inside the test cavity, and the carrying platform is used to be fixed to the photovoltaic data acquisition rod;

[0008] The aging device includes an interface unit, an AT command transmission module, a data simulation module and a power module; the AT command transmission module, the data simulation module and the power module in the aging device are respectively connected to the photovoltaic data acquisition stick through the interface unit; the AT command transmission module is used to send AT commands to the photovoltaic data acquisition stick at a regular interval; the data simulation module is used to simulate the operating data of the photovoltaic inverter for collection by the photovoltaic data acquisition stick; the power module is used to supply power to the photovoltaic data acquisition stick;

[0009] The cloud server includes a communication module, a recording module, a statistics module, a comparison module and a judgment module. The cloud server is connected to the photovoltaic data acquisition stick through the communication module to obtain the collected data of the photovoltaic data acquisition stick; the recording module is connected to the communication module to record the number of times the photovoltaic data acquisition stick uploads the collected data; the comparison module is connected to the communication module to compare the collected data of the photovoltaic data acquisition stick with a preset value; the statistics module is used to count the total number of uploads; the judgment module determines whether the photovoltaic data acquisition stick passes the test based on the comparison result of the comparison module, the statistics result of the statistics module and the SN code of the photovoltaic data acquisition stick.

[0010] Furthermore, it also includes a temperature control unit for controlling the temperature of the test cavity.

[0011] Furthermore, the test cavity further includes a heating device, which is connected to the temperature control unit and is used to increase the temperature inside the test cavity.

[0012] Furthermore, the test cavity further includes a temperature detection unit, which is connected to the temperature control unit. The temperature detection unit is used to detect the temperature inside the test cavity and provide temperature feedback to the temperature control unit.

[0013] Furthermore, the heating device is a resistance wire.

[0014] Furthermore, the temperature detection unit is a thermocouple.

[0015] Furthermore, the temperature detection unit is arranged on the inner wall of the test cavity.

[0016] Furthermore, the temperature control unit adjusts the temperature of the test cavity through feedback regulation.

[0017] Furthermore, the interface unit is a USB interface.

[0018] Furthermore, the interface unit is a Type-C interface.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] The utility model can perform reliability and stability tests on photovoltaic data acquisition rods, and can perform the tests repeatedly and in batches. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 An embodiment of the present utility model provides an aging test device for a photovoltaic data acquisition rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Figure 1 FIG. 4 shows an aging test device for a photovoltaic data acquisition rod according to this embodiment. Figure 1 As shown, the aging test device 10 of this embodiment includes an aging device 101, a cloud server 300 and a shell (not shown in the figure). The internal space of the shell constitutes a test cavity 400, and the photovoltaic data acquisition rod to be tested is placed in the test cavity.

[0025] Optionally, a carrying platform is provided inside the test cavity, wherein the carrying platform is used to fix the photovoltaic data acquisition rod to be tested.

[0026] The aging device 100 includes an interface unit (not shown in the figure), an AT command transmitting module 101, a data simulation module 102, a temperature control unit (not shown in the figure) and a power module (not shown in the figure); wherein the AT command transmitting module 101, the data simulation module 102 and the power module are respectively connected to the photovoltaic data acquisition stick to be tested through the interface unit.

[0027] Optionally, the interface unit may be a USB interface or a Type-C interface.

[0028] and, an AT command transmitting module 102 for periodically sending AT commands to the photovoltaic data collection stick 200 so that the photovoltaic data collection stick 200 can collect data;

[0029] The data simulation module 102 is used to simulate the operation data of the photovoltaic inverter for collection by the photovoltaic data collection stick 200;

[0030] The temperature control unit is used to control the temperature inside the test chamber 400 .

[0031] Optionally, the temperature control unit adjusts the temperature of the test chamber 400 by feedback regulation.

[0032] Optionally, a heating device (not shown) is provided inside the test chamber 400 to increase the internal temperature of the test chamber 400 to meet the requirements of the aging test. The heating device is connected to the temperature control unit of the aging device 100 and is controlled by the temperature control unit of the aging device 100.

[0033] Optionally, the heating device is a resistance wire.

[0034] Optionally, the heating device is arranged on the inner wall of the test cavity 400 .

[0035] The power module is used to supply power to the photovoltaic data acquisition stick to be tested so that it can maintain normal operation.

[0036] The photovoltaic data acquisition stick 200 collects the simulation data of the data simulation module and uploads the collected data to the cloud server;

[0037] The cloud server 300 includes a communication module, a recording module, a statistics module, a comparison module, and a judgment module. The cloud server is connected to the photovoltaic data collection stick via the communication module and is used to obtain the collected data of the photovoltaic data collection stick. The recording module is connected to the communication module and is used to record the number of times the photovoltaic data collection stick uploads collected data. The comparison module is connected to the communication module and is used to compare the collected data of the photovoltaic data collection stick with a preset value. The statistics module is used to count the total number of uploads. The judgment module determines whether the photovoltaic data collection stick passes the test based on the comparison result of the comparison module and the SN code of the photovoltaic data collection stick.

[0038] Optional, such as Figure 1 As shown, the photovoltaic data acquisition stick 200 includes an AT command parsing module 201 and a data acquisition module 202. The AT command parsing module 201 is used to receive and parse the AT command sent by the AT command transmitting module 101. The data acquisition module 202 is used to collect simulation operation data from the data simulation module 102.

[0039] Optionally, the aging device 100 further includes a Type-C interface, and the AT command transmitting module 101, the data simulation module 102, the temperature control unit and the power module in the aging device 100 are respectively connected to the photovoltaic data acquisition stick to be tested through the Type-C interface.

[0040] Optionally, the test cavity 400 further includes a temperature detection unit (not shown in the figure), which is connected to the temperature control unit. The temperature detection unit is used to detect the temperature inside the test cavity 400 and provide temperature feedback to the temperature control unit.

[0041] Optionally, the temperature control unit also includes an MCU and a comparator, one input end of the comparator is connected to the temperature detection unit, and the other input end inputs a preset temperature threshold, the output end of the comparator is connected to one end of the MCU, and the other end of the MCU is communicatively connected to the heating device, wherein the comparator is used to compare the detection value of the temperature detection unit with the preset temperature threshold, and the MCU is used to adjust the power of the heating device according to the comparison result of the comparator.

[0042] Optionally, the temperature detection unit is a thermocouple.

[0043] The aging test of the aging test device 10 of this embodiment includes the following steps:

[0044] S1. The aging device 100 is connected to the photovoltaic data collection stick 200 through a USB interface, and the photovoltaic data collection stick is powered by the power module of the aging device 100.

[0045] S2. The communication module of the cloud server 300 is connected to the photovoltaic data acquisition stick 200 and checks whether the connection is successful.

[0046] S3. The temperature control unit of the aging device 100 controls the heating device inside the test chamber 400 to heat up. When the temperature inside the test chamber 400 reaches a preset temperature, the aging test (ie, S4-S6) is started.

[0047] S4 aging device 100 in the AT command transmitting module regularly sends AT commands to the photovoltaic data acquisition stick 200;

[0048] S5 photovoltaic data acquisition stick 200 in the AT command parsing unit 201 parses the AT command, after the analysis is completed, the control data acquisition unit 202 collects data through the bus protocol;

[0049] S6. The cloud server 300 obtains the collected data from the photovoltaic collection rod 200, and at the same time, checks the collected data and records the number of reports;

[0050] S7. Repeat S4-S6 until the aging time ends;

[0051] S8. The cloud server 300 records the number of times the photovoltaic data collection stick 200 uploads data, compares the collected data, counts the total number of uploads, and determines whether the test is passed based on the collector SN code.

[0052] The terms "equal," "same," or "equal" disclosed in the present invention must take into account the distribution of engineering parameters, with an error distribution within ±30%; the definition of "parallel" between two line segments or two straight lines is that the angle between the two line segments or two straight lines is less than or equal to 45 degrees; the definition of "perpendicular" between two line segments or two straight lines is that the angle between the two line segments or two straight lines is within the range of [60, 120] degrees; the definition of "phase mismatch" also requires consideration of the distribution of engineering parameters, with an error distribution within ±30% of the degree of mismatch. In addition, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. Without more constraints, an element defined by the phrase "comprises a..." does not exclude the existence of additional identical elements in the process, method, article or apparatus that comprises the element.

[0053] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0054] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aging test device for a photovoltaic data acquisition rod, characterized in that: include: Housing, aging device and cloud server; The internal space of the shell constitutes a test cavity; a carrying platform is provided inside the test cavity, and the carrying platform is used to be fixed to the photovoltaic data acquisition rod; The aging device includes an interface unit, an AT command transmitting module, a data simulation module and a power supply module; the AT command transmitting module, the data simulation module and the power supply module in the aging device are respectively connected to the photovoltaic data acquisition stick through the interface unit; The cloud server includes a communication module, a recording module, a statistical module, a comparison module and a judgment module. The cloud server is connected to the photovoltaic data acquisition stick through the communication module. The communication module is connected to the recording module, the comparison module, the statistical module and the judgment module in sequence. The judgment module judges whether the photovoltaic data acquisition stick passes the test based on the comparison result of the comparison module, the statistical result of the statistical module and the SN code of the photovoltaic data acquisition stick.

2. The aging test device for a photovoltaic data acquisition rod according to claim 1, characterized in that: It also includes a temperature control unit for controlling the temperature of the test cavity.

3. The aging test device for a photovoltaic data acquisition rod according to claim 2, characterized in that: The test cavity further includes a heating device, which is connected to the temperature control unit and is used to increase the temperature inside the test cavity.

4. The aging test device for a photovoltaic data acquisition rod according to claim 3, characterized in that: The test cavity further includes a temperature detection unit, which is connected to the temperature control unit. The temperature detection unit is used to detect the temperature inside the test cavity and provide temperature feedback to the temperature control unit.

5. The aging test device for a photovoltaic data acquisition rod according to claim 4, characterized in that: The heating device is a resistance wire.

6. The aging test device for a photovoltaic data acquisition rod according to claim 5, characterized in that: The temperature detection unit is a thermocouple.

7. The aging test device for a photovoltaic data acquisition rod according to claim 6, characterized in that: The temperature detection unit is arranged on the inner wall of the test cavity.

8. The aging test device for a photovoltaic data acquisition rod according to claim 6, characterized in that: The temperature control unit adjusts the temperature of the test cavity through feedback regulation.

9. The aging test device for a photovoltaic data acquisition rod according to claim 1, characterized in that: The interface unit is a USB interface.

10. The aging test device for a photovoltaic data acquisition rod according to claim 1, characterized in that: The interface unit is a Type-C interface.

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