Power statistics component and photovoltaic station

Abstract

The utility model discloses a kind of electric quantity statistical components and photovoltaic station, electric quantity statistical component includes electric energy meter, reading meter component and statistical equipment, electric energy meter has pulse lamp, reading meter component includes optical receiver, encoder and decoder, optical receiver is connected with encoder, optical receiver is used to convert optical signal into electrical signal, encoder is used to convert electrical signal into digital signal, encoder is connected with decoder, decoder is used to interpret digital signal as electric quantity information, statistical equipment is connected with decoder and is used to receive, store and statistically electric quantity information interpreted by decoder.According to the electric quantity statistical component of the utility model, the number of times of received optical signal can be used to determine the number of times of pulse lamp blinking, so as to calculate the power generation or power consumption of the electric quantity statistical site, realize the non-contact reading of electric quantity, and effectively solve the limitation that electric energy meter cannot be directly connected with data line.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic energy engineering technology, and in particular to a power counting component and a photovoltaic station. Background Technology

[0002] In related technologies, electricity information is collected by connecting a data line in series with the electricity meter. However, the restrictions imposed by the power grid company on the external data line of the electricity meter have led to difficulties in the traditional data collection method. New electricity collection technology is an urgent problem to be solved. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this utility model is to provide a power consumption statistics component that can determine the number of pulse light flashes by receiving the number of light signals, thereby calculating the power generation or consumption of the power consumption statistics site, achieving non-contact power consumption reading, and effectively solving the restriction that electricity meters cannot be directly connected to data cables.

[0004] This utility model also proposes a photovoltaic station with the above-mentioned power statistics component.

[0005] A power consumption statistics component according to a first aspect of the present invention includes: a power meter having a pulse lamp; a meter reading component including a light receiver, an encoder, and a decoder, wherein the light receiver is connected to the encoder, the light receiver is used to convert light signals into electrical signals, the encoder is used to convert the electrical signals into digital signals, the encoder is connected to the decoder, and the decoder is used to interpret the digital signals as power consumption information; and a statistics device connected to the decoder and used to receive, store, and statistically analyze the power consumption information interpreted by the decoder.

[0006] According to the power statistics component of this utility model, by setting up an optical receiver for converting optical signals into electrical signals, the decoder can determine the number of pulse light flashes by the number of received digital signals, thereby calculating the power generation or power consumption of the power statistics site, realizing non-contact reading of power, and effectively solving the restriction that the power meter cannot be directly connected to the data line.

[0007] According to some embodiments of the present invention, the meter reading assembly further includes a first dark box and a first optical fiber. The first dark box has a first space, the optical receiver is disposed in the first space, one end of the first optical fiber passes through the first dark box, and the other end of the first optical fiber is connected to the pulse lamp.

[0008] According to some other embodiments of the present invention, the meter reading assembly further includes a second dark box, the second dark box having a second space, a light-transmitting hole communicating with the second space on the second dark box, the light receiver being disposed in the second space, the second dark box being connected to the energy meter, and the pulse lamp being opposite to the light-transmitting hole.

[0009] In some other embodiments of the present invention, the second dark box also has a light-indicating hole, which is located on the side of the second dark box away from the electricity meter. The meter reading assembly also includes a second optical fiber, one end of which passes through the light-indicating hole and the other end of which passes through the light-transmitting hole.

[0010] In some other embodiments of this invention, the outer periphery of the second optical fiber is covered with a light-shielding element.

[0011] In some other embodiments of this utility model, the second dark box is provided with an adhesive layer, which is connected to the surface of the second dark box facing the electricity meter, and the adhesive layer is arranged around the outer periphery of the light-transmitting hole.

[0012] According to some embodiments of the present invention, the pulse lamp is used to emit red light.

[0013] According to some embodiments of this utility model, the power consumption statistics component further includes: a meter box, the meter box including a housing and a door, the housing defining an installation space with an opening, the door being openable and closable at the opening of the installation space, the outer periphery of the door being provided with a skirt, the skirt covering the housing when the door is closed and the installation space is closed, the power meter being disposed within the installation space, and the meter reading component being disposed within the installation space.

[0014] According to some optional embodiments of the present invention, the power statistics component further includes: a repeater, the repeater being connected to the decoder, the repeater being used to receive and store power information within a preset time period, and the repeater being used to send the total power within the preset time period to the statistics device.

[0015] A photovoltaic station according to a second aspect of the present invention includes: a power counting component according to the first aspect of the present invention.

[0016] According to the photovoltaic station of this utility model, by setting the above-mentioned power statistics component, the number of pulse lamp flashes can be determined by the number of received light signals, thereby calculating the power generation or power consumption of the photovoltaic station, realizing non-contact reading of power, and effectively solving the restriction that the power meter cannot be directly connected to the data line.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of a partial structure of a power counting component according to some embodiments of the present invention;

[0020] Figure 2 yes Figure 1 A partial structural diagram of the table reading component in the diagram.

[0021] Figure label:

[0022] 100. Power consumption statistics component;

[0023] 1. Electricity meter; 11. Pulse lamp;

[0024] 2. Meter reading assembly; 21. Optical receiver; 22. Second dark box; 221. Second space; 222. Light transmission hole; 223. Light display hole; 23. Second optical fiber; 24. Adhesive layer;

[0025] 4. Meter box; 41. Housing; 42. Box door; 43. Installation space; 44. Skirt; 45. Flexible component. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] The power counting component 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0028] Reference Figure 1 and Figure 2 According to the first aspect of the present invention, the power consumption statistics component 100 includes: an energy meter 1, a meter reading component 2 and a statistics device. The energy meter 1 has a pulse lamp 11. For example, if the energy meter is marked "1600imp / kWh", it means that for every 1 kWh of electricity consumed, the pulse lamp 11 will flash 1600 times, so each flash consumes approximately 0.000625 kWh of electricity.

[0029] It should be understood that the flashing principle of the pulse lamp 11 in electricity meter 1 is based on the magnetic field effect generated by the induction coil of electricity meter 1. The induction coil of electricity meter 1 contains an iron core and multiple turns of wire. When electrical energy flows through the induction coil, it generates a magnetic field through the iron core, accelerating the movement of electrons in the wire and creating an induced electromotive force. This drives the pulse generator of the meter to output a pulse signal for a certain period of time. The pulse lamp 11 is an electrical impulse (voltage or current) operation indicator; the flashing of the pulse lamp 11 indicates that there is a load on the circuit, that is, current is flowing through it. The flashing frequency of the pulse lamp 11 varies with the size of the electrical load. The larger the electrical load, the faster the pulse lamp 11 flashes.

[0030] The meter reading component 2 includes an optical receiver 21, an encoder, and a decoder. The optical receiver 21 is connected to the encoder and is used to convert optical signals into electrical signals. For example, the optical receiver 21 may include a built-in photodiode (such as a PIN diode or avalanche photodiode), a preamplifier, and a noise suppression circuit. The photodiode is used to convert the input optical signal into a weak current signal. The preamplifier is used to amplify the converted electrical signal. The amplified electrical signal can be transmitted to the noise suppression circuit. The noise suppression circuit (such as a low-pass filter) eliminates environmental interference (such as electromagnetic noise) and converts the output signal into a standardized electrical signal (such as a 0-5V pulse or analog voltage) for subsequent encoder processing.

[0031] An encoder is used to convert electrical signals into digital signals. The encoder is connected to a decoder, which interprets the digital signals into power information. For example, the encoder can output power information as RS-485 protocol data signals, or it can output power information as CAN protocol data signals or LoRa wireless protocol data signals to adapt to the communication needs of different scenarios.

[0032] The counting device is connected to the decoder and is used to receive, store, and analyze the power information interpreted by the decoder. For example, the counting device connects to the decoder via RS-485, Ethernet, or a wireless communication protocol (such as LoRaWAN or NB-IoT). Alternatively, the counting device can be a computer.

[0033] According to the power statistics component 100 of this utility model, by setting up an optical receiver 21 for converting optical signals into electrical signals, the decoder can determine the number of times the pulse lamp 11 flashes by the number of times the received digital signals are received, thereby calculating the power generation or power consumption of the power statistics site, realizing non-contact reading of power, and effectively solving the restriction that the power meter 1 is not allowed to be directly connected to the data line.

[0034] Reference Figure 1 and Figure 2According to some embodiments of this utility model, the pulse lamp 11 is used to emit red light. This allows the light emitted by the pulse lamp 11 to have relatively low transmission loss in various media (such as air and optical fiber), better maintain its light intensity during transmission, reduce energy loss caused by medium absorption or scattering, and enable the light emitted by the pulse lamp 11 to penetrate these media more effectively in environments with obstructions such as smoke and dust, and reach the light receiver 21, so that the light receiver 21 can reliably sense the flickering of the pulse lamp 11, improving the reliability of the meter reading component 2. Optionally, the pulse lamp 11 can also emit green or yellow light.

[0035] According to some embodiments of the present invention, the meter reading assembly 2 further includes a first dark box and a first optical fiber. The first dark box has a first space, the optical receiver 21 is disposed in the first space, one end of the first optical fiber passes through the first dark box, and the other end of the first optical fiber is connected to the pulse lamp 11.

[0036] In this way, the ambient light can be blocked by the first dark box, and the light from the pulse lamp 11 can be reliably transmitted to the light receiver 21 through the first light source, reducing the influence of ambient light on the light receiver 21, so that the light receiver 21 can reliably and accurately sense the flashing of the pulse lamp 11.

[0037] Reference Figure 1 and Figure 2 According to some embodiments of the present invention, and according to other embodiments of the present invention, the meter reading assembly 2 further includes a second dark box 22, the second dark box 22 having a second space 221, a light-transmitting hole 222 communicating with the second space 221 on the second dark box 22, a light receiver 21 disposed in the second space 221, the second dark box 22 being connected to the energy meter 1, and the pulse lamp 11 being opposite to the light-transmitting hole 222.

[0038] This way, the ambient light can be blocked by the second dark box 22, and the light-transmitting hole 222 can be blocked by the power meter 1, reducing the amount of ambient light entering the second space 221 through the light-transmitting hole 222, reducing the influence of ambient light on the light receiver 21, so that the light receiver 21 can reliably and accurately sense the flashing of the pulse lamp 11.

[0039] Reference Figure 1 and Figure 2In some other embodiments of this utility model, the second dark box 22 also has a light-indicating hole 223, which is located on the side of the second dark box 22 away from the energy meter 1. The meter reading assembly 2 also includes a second optical fiber 23, one end of which passes through the light-indicating hole 223 and the other end of which passes through the light-transmitting hole 222. In this way, part of the light from the pulse lamp 11 when it flashes can be drawn out of the second space 221 through the second light, so that the user can observe whether the pulse lamp 11 is flashing normally through the light-indicating hole 223, thereby determining whether the energy meter 1 is working normally, without having to remove the second dark box 22 to observe the pulse lamp 11.

[0040] Reference Figure 1 and Figure 2 In some other embodiments of this invention, the outer periphery of the second optical fiber 23 is covered with a light-shielding element. This can effectively reduce the amount of ambient light entering the second space 221 through the light-emitting aperture 223, reduce the influence of ambient light on the light receiver 21, and enable the light receiver 21 to reliably and accurately sense the flashing of the pulse lamp 11.

[0041] Reference Figure 1 and Figure 2 In some embodiments of this invention, the second dark box 22 is provided with an adhesive layer 24, which is attached to the surface of the second dark box 22 facing the electricity meter 1, and is arranged around the outer periphery of the light-transmitting hole 222. For example, the adhesive layer 24 can be double-sided tape. This allows the second dark box 22 to be reliably connected to the electricity meter 1. At the same time, the adhesive layer 24 can seal the gap between the second dark box 22 and the electricity meter 1, reducing the amount of ambient light shining from between the second dark box 22 and the electricity meter 1 into the light-transmitting hole 222, reducing the influence of ambient light on the light receiver 21, and enabling the light receiver 21 to reliably and accurately sense the flashing of the pulse lamp 11.

[0042] Reference Figure 1 and Figure 2 According to some embodiments of the present invention, the power consumption statistics component 100 further includes: a meter box 4, which includes a housing 41 and a door 42. The housing 41 defines an installation space 43 with an opening. The door 42 is openable and closable at the opening of the installation space 43. A skirt 44 is provided on the outer periphery of the door 42. When the door 42 closes the installation space 43, the skirt 44 covers the housing 41. The power meter 1 is installed in the installation space 43, and the meter reading component 2 is installed in the installation space 43.

[0043] The electricity meter 1 and the meter reading component 2 are installed in the installation space 43, so that the meter box 4 can protect the electricity meter 1 and the meter reading component 2, effectively ensure the safety of the electricity meter 1 and the meter reading component 2, improve the reliability of the electricity meter 1 and the meter reading component 2, and improve the reliability of the electricity statistics component 100.

[0044] By providing a skirt 44 on the outer periphery of the door 42, and covering the housing 41 when the door 42 is closed and the installation space 43 is closed, the skirt 44 can block the gap between the door 42 and the housing 41, reducing the amount of light entering the installation space 43 from the gap between the door 42 and the housing 41. This allows the installation space 43 to form a dark room after the door 42 is closed, enabling the light receiver 21 to reliably and accurately sense the flashing of the pulse lamp 11.

[0045] Optionally, refer to Figure 1 and Figure 2 A flexible element 45 is provided between the skirt 44 and the housing 41. When the door 42 closes the installation space 43, the skirt 44 presses against the flexible element 45 and deforms. Specifically, the flexible element 45 can be a rubber element, a silicone element, or a sponge element. This can further reduce the amount of light entering the installation space 43 from the gap between the door 42 and the housing 41, so that the installation space 43 after the door 42 is closed can more reliably become a darkroom, allowing the light receiver 21 to reliably and accurately sense the flashing of the pulse lamp 11.

[0046] According to some optional embodiments of the present invention, the power consumption statistics component 100 further includes a repeater connected to the decoder. The repeater is used to receive and store power consumption information within a preset time period, and to send the total power consumption within the preset time period to the statistics device. For example, the preset time period can be one hour, two hours, half a day, or one day. This reduces data redundancy, improves data quality, and reduces the energy consumption of the power consumption statistics component 100.

[0047] A photovoltaic station according to a second aspect of the present invention includes: a power counting component 100 according to the first aspect of the present invention.

[0048] According to the photovoltaic station of this utility model, by setting the above-mentioned power statistics component 100, the number of times the pulse lamp 11 flashes can be determined by the number of received light signals, thereby calculating the power generation or power consumption of the photovoltaic station, realizing non-contact reading of power, and effectively solving the limitation that the power meter 1 is not allowed to be directly connected to the data line.

[0049] In the description of this utility model, it should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A power consumption statistics component (100), characterized in that, include: An electricity meter (1) has a pulse lamp (11); The meter reading component (2) includes an optical receiver (21), an encoder, and a decoder. The optical receiver (21) is connected to the encoder. The optical receiver (21) is used to convert optical signals into electrical signals. The encoder is used to convert the electrical signals into digital signals. The encoder is connected to the decoder. The decoder is used to interpret the digital signals into electrical quantity information. A statistical device, connected to the decoder, is used to receive, store, and statistically analyze the power information interpreted by the decoder.

2. The power consumption statistics component (100) according to claim 1, characterized in that, The meter reading assembly (2) further includes a first dark box and a first optical fiber. The first dark box has a first space, the optical receiver (21) is disposed in the first space, one end of the first optical fiber passes through the first dark box, and the other end of the first optical fiber is connected to the pulse lamp (11).

3. The power counting component (100) according to claim 1, characterized in that, The meter reading assembly (2) further includes a second dark box (22), which has a second space (221). The second dark box (22) has a light-transmitting hole (222) communicating with the second space (221). The light receiver (21) is located in the second space (221). The second dark box (22) is connected to the electricity meter (1). The pulse lamp (11) is opposite to the light-transmitting hole (222).

4. The power counting component (100) according to claim 3, characterized in that, The second dark box (22) also has a light-indicating hole (223), which is located on the side of the second dark box (22) away from the electricity meter (1). The meter reading assembly (2) also includes a second optical fiber (23), one end of which passes through the light-indicating hole (223) and the other end of which passes through the light-transmitting hole (222).

5. The power counting component (100) according to claim 4, characterized in that, The outer periphery of the second optical fiber (23) is covered with a light-shielding element.

6. The power consumption statistics component (100) according to claim 3, characterized in that, The second dark box (22) is provided with an adhesive layer (24), which is connected to the side surface of the second dark box (22) facing the electricity meter (1), and the adhesive layer (24) is arranged around the outer periphery of the light-transmitting hole (222).

7. The power consumption statistics component (100) according to claim 1, characterized in that, The pulse lamp (11) is used to emit red light.

8. The power consumption statistics component (100) according to claim 1, characterized in that, Also includes: The meter box (4) includes a housing (41) and a door (42). The housing (41) defines an installation space (43) with an opening. The door (42) is openable and closable at the opening of the installation space (43). The outer periphery of the door (42) is provided with a skirt (44). When the door (42) closes the installation space (43), the skirt (44) covers the housing (41). The electricity meter (1) is located in the installation space (43), and the meter reading assembly (2) is located in the installation space (43).

9. The power counting component (100) according to any one of claims 1-8, characterized in that, Also includes: A repeater is connected to the decoder. The repeater is used to receive and store power information within a preset time period, and to send the total power within the preset time period to the statistical device.

10. A photovoltaic power station, characterized in that, include: The power counting component (100) according to any one of claims 1-9.

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