Photovoltaic data acquisition device, external power supply device and uninterrupted photovoltaic data acquisition system

Abstract

The utility model relates to a photovoltaic data acquisition device, an external power supply device and an uninterrupted photovoltaic data acquisition system. The photovoltaic data acquisition device comprises an acquisition unit, a first power supply unit, a sampling unit and a control unit. The acquisition unit is connected with an external power supply device; the first power supply unit is connected with the acquisition unit and an external power supply; the sampling unit is connected with the first power supply unit; the control unit is connected with the acquisition unit, the first power supply unit, the sampling unit and the external power supply device. The photovoltaic data acquisition device has the advantages that the sampling unit is arranged to monitor the power supply loop of the first power supply unit and is connected with the control unit, so that the external power supply device can be started when the first power supply unit stops working, the photovoltaic data acquisition device can be ensured to work uninterruptedly, and the stability of data acquisition is ensured; the problem that the existing outdoor photovoltaic data collector has a data collection vacuum period after power failure and power flash-off is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic data acquisition technical field especially relates to a photovoltaic data acquisition device, external power supply device and uninterrupted photovoltaic data acquisition system. BACKGROUND

[0002] The photovoltaic data acquisition device is used for collecting data in the photovoltaic power station, and the data of photovoltaic grid-connected inverters, combiner boxes, weather stations and electric meters and other equipment in the photovoltaic power station are collected through RS485, RS232 and RS422 and other modes, and then the collected data is transmitted to a database through GPRS, Ethernet, WIFI, 3G and other modes, so as to help operation and maintenance personnel to monitor the running state of the photovoltaic system in real time, help to optimize the design and operation strategy of the photovoltaic system, improve the energy utilization efficiency, monitor and manage distributed energy resources, and realize the collaborative work with energy storage systems and load management systems.

[0003] The existing photovoltaic data acquisition device is generally connected with a 220V power supply, and the photovoltaic power station is all outdoors, many of which are located in remote areas, and power failure may occur on site, once the power failure occurs, the acquisition device will also stop working, and the data cannot avoid a period of vacuum period. At the same time, the photovoltaic inverter belongs to high-power electrical equipment, and the acquisition device is often connected in a system, and power failure may occur when the photovoltaic inverter starts.

[0004] At present, there is no effective solution to the problems of power failure of the existing outdoor photovoltaic data acquisition device, power failure and data acquisition vacuum period. UTILITY MODEL CONTENT

[0005] The utility model aims at the deficiency in the prior art, provides a photovoltaic data acquisition device, external power supply device and uninterrupted photovoltaic data acquisition system to solve the problems of power failure of the existing outdoor photovoltaic data acquisition device, power failure and data acquisition vacuum period in the related art.

[0006] To achieve the above object, the utility model adopts the technical scheme of:

[0007] Firstly, a photovoltaic data acquisition device for outdoor photovoltaic data acquisition is provided, which comprises:

[0008] An acquisition unit is connected with an external power supply device;

[0009] A first power supply unit is connected with the acquisition unit and connected with an external power supply, and is used for supplying power to the acquisition unit;

[0010] a sampling unit, connected with the first power unit, for monitoring whether the first power unit supplies power to the collecting unit;

[0011] a control unit, connected with the collecting unit, the first power unit, the sampling unit and the external power supply device respectively, for supplying power to the external power supply device when the first power unit supplies power to the collecting unit, and for making the external power supply device supply power to the collecting unit when the first power unit does not supply power to the collecting unit.

[0012] In some embodiments thereof, further comprising:

[0013] a first housing unit, inside of which the collecting unit, the first power unit, the sampling unit and the control unit are arranged, and which is detachably connected with the external power supply device.

[0014] In some embodiments thereof, the first housing unit comprises:

[0015] a first housing element, inside of which the collecting unit, the first power unit, the sampling unit and the control unit are arranged;

[0016] at least one first electric connection element, arranged on the side of the first housing element, and electrically connected with the control unit and the external power supply device respectively;

[0017] at least one first connection element, arranged on the side of the first housing element, and detachably connected with the external power supply device.

[0018] In some embodiments thereof, further comprising:

[0019] a communication unit, communicatively connected with the control unit.

[0020] In some embodiments thereof, the communication unit comprises:

[0021] a plurality of communication interface elements, each of which is connected with the control unit.

[0022] In some embodiments thereof, further comprising a first indication unit, communicatively connected with the first power unit, for displaying the working state of the first power unit.

[0023] In a second aspect, an external power supply device is provided, for connecting with the photovoltaic data collecting device of the first aspect, comprising:

[0024] A second power unit, which is connected with the collecting unit and the control unit of the photovoltaic data acquisition device respectively, and is used to supply power to the collecting unit by an external power supply device when the first power unit of the photovoltaic data acquisition device does not supply power to the collecting unit.

[0025] In some embodiments, the photovoltaic data acquisition device further comprises:

[0026] A second housing unit, which is internally provided with the second power unit and is detachably connected with the photovoltaic data acquisition device.

[0027] In some embodiments, the second housing unit comprises:

[0028] A second housing element, which is internally provided with the second power unit;

[0029] At least one second electrical connection element, which is arranged on the side of the second housing element and is electrically connected with the second power unit and the photovoltaic data acquisition device respectively;

[0030] At least one second connecting element, which is arranged on the side of the second housing element and is detachably connected with the photovoltaic data acquisition device.

[0031] In some embodiments, the photovoltaic data acquisition device further comprises:

[0032] A second indication unit, which is in communication connection with the second power unit and is used to display the working state of the second power unit.

[0033] In a third aspect, an uninterrupted photovoltaic data acquisition system is provided, comprising:

[0034] The photovoltaic data acquisition device according to the first aspect;

[0035] The external power supply device according to the second aspect, which is connected with the photovoltaic data acquisition device.

[0036] Compared with the prior art, the photovoltaic data acquisition device has the following technical effects:

[0037] The utility model discloses a photovoltaic data acquisition device, external power supply device and uninterrupted photovoltaic data acquisition system, through setting up sampling unit to the power supply loop of first power unit is monitored, and with control unit connection, can start external power supply device when the first power unit stops working, guarantees that photovoltaic data acquisition device can work uninterrupted, thereby guarantee the stability of data collection, solved the existing outdoor photovoltaic data acquisition ware power failure, power flash after existing data acquisition vacuum period etc. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is the schematic diagram (one) of photovoltaic data acquisition device according to the utility model embodiment;

[0039] Figure 2 It is the schematic diagram of first shell unit according to the utility model embodiment;

[0040] Figure 3 It is the schematic diagram (two) of photovoltaic data acquisition device according to the utility model embodiment;

[0041] Figure 4 It is the schematic diagram of communication unit according to the utility model embodiment;

[0042] Figure 5 It is the schematic diagram (three) of photovoltaic data acquisition device according to the utility model embodiment;

[0043] Figure 6 It is the schematic diagram (one) of external power supply device according to the utility model embodiment;

[0044] Figure 7 It is the schematic diagram of second shell unit according to the utility model embodiment;

[0045] Figure 8 It is the schematic diagram (two) of external power supply device according to the utility model embodiment.

[0046] The reference signs among them are: 100, photovoltaic data acquisition device;

[0047] 110, acquisition unit;120, first power unit;130, sampling unit;140, control unit;

[0048] 150, first shell unit;151, first shell element;152, first electric connection element;153, first connecting element;

[0049] 160, communication unit;161, communication interface element;

[0050] 170, first indication unit;

[0051] 200, external power supply device; 210, second power supply unit;

[0052] 220, second housing unit; 221, second housing element; 222, second electrical connection element; 223, second connection element;

[0053] 230, second indication unit. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0055] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0056] The present application will be further described below with reference to the drawings and specific embodiments, but is not limited to the present application.

[0057] Embodiment 1

[0058] The present embodiment relates to the photovoltaic data acquisition device of the present application.

[0059] One illustrative embodiment of the present application, as shown in Figure 1 A photovoltaic data acquisition device 100 for outdoor photovoltaic data acquisition, comprising an acquisition unit 110, a first power supply unit 120, a sampling unit 130 and a control unit 140. Wherein, the acquisition unit 110 is connected with an external power supply device 200; the first power supply unit 120 is connected with the acquisition unit 110 and connected with an external power supply, for supplying power to the acquisition unit 110; the sampling unit 130 is connected with the first power supply unit 120, for monitoring whether the first power supply unit 120 supplies power to the acquisition unit 110; the control unit 140 is connected with the acquisition unit 110, the first power supply unit 120, the sampling unit 130 and the external power supply device 200 respectively, for supplying power to the external power supply device 200 in the case that the first power supply unit 120 supplies power to the acquisition unit 110, and for making the external power supply device 200 supply power to the acquisition unit 110 in the case that the first power supply unit 120 does not supply power to the acquisition unit 110.

[0060] In some of the embodiments, the acquisition unit 110 is a photovoltaic data acquisition device.

[0061] In some of the embodiments, the first power supply unit 120 is a 12V DC power transformer.

[0062] In some embodiments, the sampling unit 130 is a sampling circuit.

[0063] In some embodiments, the control unit 140 is a collector controller.

[0064] Further, the photovoltaic data collection device 100 further comprises a first housing unit 150. In which, the inside of the first housing unit 150 is provided with the collection unit 110, the first power supply unit 120, the sampling unit 130, and the control unit 140, and is detachably connected with the external power supply device 200.

[0065] As shown in Figure 2 The first housing unit 150 comprises a first housing element 151, at least one first electrical connection element 152, and at least one first connection element 153. In which, the inside of the first housing element 151 is provided with the collection unit 110, the first power supply unit 120, the sampling unit 130, and the control unit 140; the first electrical connection element 152 is arranged on the side of the first housing element 151, and is respectively electrically connected with the control unit 140 and the external power supply device 200; and the first connection element 153 is arranged on the side of the first housing element 151, and is detachably connected with the external power supply device 200.

[0066] In some embodiments, the first housing element 151 is made of a waterproof and fireproof material, including but not limited to polycarbonate.

[0067] In some embodiments, the first electrical connection element 152 is a power supply line.

[0068] In some embodiments, the connection mode of the first connection element 153 with the first housing element 151 includes but is not limited to one-piece forming.

[0069] In some embodiments, the first connection element 153 includes but is not limited to a connection slot.

[0070] The use method of the utility model is as follows:

[0071] (I) normal working state:

[0072] The external power supply is powered on, and the first power supply unit 120 is in normal working state, at this time, the first power supply unit 120 is in power supply state, and the collection unit 110 is powered;

[0073] At this time, the collection unit 110 is in normal working state, and the frequency of collecting data is 5 minutes or 15 minutes once;

[0074] Meanwhile, the sampling unit 130 sends a signal to the control unit 140, and the control unit 140 controls the first power supply unit 120 to charge the external power supply device 200 through the first electrical connection element 152.

[0075] (ii) Standby working state:

[0076] When the external power supply is powered off, the first power supply unit 120 stops working, and at this time, the first power supply unit 120 is in a power-off state;

[0077] At this time, the sampling unit 130 monitors that the first power supply unit 120 stops working, sends a signal to the control unit 140, and the control unit 140 controls the external power supply device 200 to supply power to the collection unit 110 through the first electrical connection element 152;

[0078] Meanwhile, the control unit 140 controls the collection unit 110 to switch from the normal working state to the standby working state, and the frequency of collecting data is 60 minutes once.

[0079] (iii) Recovery:

[0080] When the external power supply is restored, the first power supply unit 120 restores the power supply state, and at this time, the sampling unit 130 sends a signal to the control unit 140, and the control unit 140 controls the external power supply device 200 to stop supplying power;

[0081] Meanwhile, the control unit 140 controls the collection unit 110 to restore from the standby working state to the normal working state, and the frequency of collecting data is 5 minutes or 15 minutes once.

[0082] The photovoltaic data collection device has the advantages that the sampling unit is arranged to monitor the power supply circuit of the first power supply unit, and is connected with the control unit, so that the external power supply device can be started when the first power supply unit stops working, and the photovoltaic data collection device can work continuously, so that the stability of data collection is ensured, and problems such as a data collection vacuum period after power failure and power flash of an existing outdoor photovoltaic data collector are solved.

[0083] Embodiment 2

[0084] This embodiment is a supplementary embodiment of Embodiment 1.

[0085] As shown in Figure 3 The photovoltaic data collection device 100 further comprises a communication unit 160. The communication unit 160 is in communication connection with the control unit 140.

[0086] As shown in Figure 4 The communication unit 160 comprises a plurality of communication interface elements 161. The plurality of communication interface elements 161 are in communication connection with the control unit 140.

[0087] In some embodiments thereof, the communication interface element 161 includes, but is not limited to, a LAN interface, an XH2.54 2P interface.

[0088] The advantage of the embodiment is that the communication unit can send signals to the remote terminal device, facilitating the staff to remotely record the working state of the photovoltaic data acquisition device.

[0089] Embodiment 3

[0090] The embodiment is a supplementary embodiment of Embodiments 1-2.

[0091] As shown in Figure 5 The photovoltaic data acquisition device 100 further includes a first indication unit 170. The first indication unit 170 is in communication connection with the first power supply unit 120, and is configured to display the working state of the first power supply unit 120.

[0092] In some embodiments thereof, the first indication unit 170 includes a plurality of indication states, including but not limited to color change.

[0093] In some embodiments thereof, the first indication unit 170 is an indicator light.

[0094] The use method of the embodiment is as follows:

[0095] The first power supply unit 120 is in a power supply state, and the acquisition unit 110 is in a normal working state. The first indication unit 170 displays a first indication state (such as a bright green light).

[0096] The first power supply unit 120 is in a power-off state, and the acquisition unit 110 is in a standby working state. The first indication unit 170 displays a second indication state (such as a bright red light).

[0097] The advantage of the embodiment is that the first indication unit is provided, facilitating the staff to observe and know the working state of the external power supply device.

[0098] Embodiment 4

[0099] The embodiment relates to the external power supply device of the utility model.

[0100] As shown in Figure 6 An external power supply device 200 is used to be connected with the photovoltaic data acquisition device 100 of any one of Embodiments 1-3, and includes a second power supply unit 210. The second power supply unit 210 is connected with the acquisition unit 110 and the control unit 140 of the photovoltaic data acquisition device 100, respectively, and is configured to supply power to the acquisition unit 110 by the external power supply device 200 in the case that the first power supply unit 120 of the photovoltaic data acquisition device 100 does not supply power to the acquisition unit 110.

[0101] In some embodiments, the second power unit 210 is a 12V lithium battery.

[0102] Further, the external power supply device 200 further comprises a second housing unit 220. The interior of the second housing unit 220 is provided with the second power unit 210, and is detachably connected with the photovoltaic data acquisition device 100.

[0103] As shown in Figure 7 The second housing unit 220 comprises a second housing element 221, at least one second electrical connection element 222, and at least one second connection element 223. The interior of the second housing element 221 is provided with the second power unit 210; the second electrical connection element 222 is arranged on the side of the second housing element 221, and is respectively electrically connected with the second power unit 210 and the photovoltaic data acquisition device 100; and the second connection element 223 is arranged on the side of the second housing element 221, and is detachably connected with the photovoltaic data acquisition device 100.

[0104] Specifically, the second electrical connection element 222 is electrically connected with the first electrical connection element 152; and the second connection element 223 is detachably connected with the first connection element 153.

[0105] In some embodiments, the second housing element 221 is made of waterproof and fireproof material, including but not limited to polycarbonate.

[0106] In some embodiments, the second electrical connection element 222 is a power supply line.

[0107] In some embodiments, the connection mode of the second connection element 223 with the second housing element 221 includes but is not limited to one-piece forming.

[0108] In some embodiments, the second connection element 223 includes but is not limited to a fixed pin.

[0109] The use method of the present embodiment is as follows:

[0110] (I) Normal working state:

[0111] The external power supply is powered on, and the first power unit 120 is in normal working state. At this time, the first power unit 120 is in power supply state, and supplies power to the acquisition unit 110.

[0112] At this time, the acquisition unit 110 is in normal working state, and the frequency of collecting data is 5 minutes or 15 minutes once.

[0113] At the same time, the sampling unit 130 sends a signal to the control unit 140, and the control unit 140 controls the first power unit 120 to charge the second power unit 210.

[0114] (ii) Standby working state:

[0115] When the external power supply is powered off, the first power supply unit 120 stops working, and at this time the first power supply unit 120 is in a power-off state;

[0116] At this time, the sampling unit 130 monitors the first power supply unit 120 to stop working, and sends a signal to the control unit 140, and the control unit 140 controls the second power supply unit 210 to supply power to the collection unit 110;

[0117] At the same time, the control unit 140 controls the collection unit 110 to switch from the normal working state to the standby working state, and the frequency of collecting data is 60 minutes once.

[0118] (iii) Restore normal working state:

[0119] When the external power supply is restored, the first power supply unit 120 restores the power supply state, and at this time the sampling unit 130 sends a signal to the control unit 140, and the control unit 140 controls the second power supply unit 210 to stop supplying power;

[0120] At the same time, the control unit 140 controls the collection unit 110 to restore from the standby working state to the normal working state, and the frequency of collecting data is 5 minutes or 15 minutes once.

[0121] The advantages of this embodiment are basically the same as those of Embodiment 1, and will not be repeated here.

[0122] Embodiment 5

[0123] This embodiment is a supplementary embodiment of Embodiment 4.

[0124] As shown in Figure 8 The external power supply device 200 also includes a second indication unit 230. Among them, the second indication unit 230 is in communication connection with the second power supply unit 210, and is used to display the working state of the second power supply unit 210.

[0125] In some embodiments thereof, the second indication unit 230 includes a plurality of indication states, including but not limited to color change.

[0126] In some embodiments thereof, the second indication unit 230 is an indicator light.

[0127] The use method of this embodiment is as follows:

[0128] When the second power supply unit 210 is in a charging state, the second indication unit 230 displays a third indication state (such as a bright red light);

[0129] When the first power supply unit 120 is in a power supply state, the second indication unit 230 displays a fourth indication state (such as a bright green light).

[0130] The advantage of the embodiment is that by setting the second indication unit, the working state of the external power supply device is observed and known by the staff.

[0131] Embodiment 6

[0132] The embodiment relates to a photovoltaic data acquisition system.

[0133] An uninterrupted photovoltaic data acquisition system comprises the photovoltaic data acquisition device 100 as described in Embodiments 1-3 and the external power supply device 200 as described in Embodiments 4-5, wherein the external power supply device 200 is connected with the photovoltaic data acquisition device 100.

[0134] The advantage of the embodiment is basically the same as that of Embodiments 1-5, and will not be repeated here.

[0135] The above description is only the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model, and those skilled in the art should realize that any equivalent replacement and obvious change obtained by applying the content of the utility model specification and drawings should be included in the protection scope of the utility model.

Claims

1. A photovoltaic data acquisition device for outdoor photovoltaic data acquisition, characterized in that, The photovoltaic data acquisition device comprises: a collection unit connected with an external power supply device; a first power supply unit connected with the collection unit and an external power source, used for supplying power to the collection unit; a sampling unit connected with the first power supply unit, used for monitoring whether the first power supply unit supplies power to the collection unit; a control unit connected with the collection unit, the first power supply unit, the sampling unit and the external power supply device, used for supplying power to the external power supply device when the first power supply unit supplies power to the collection unit, and making the external power supply device supply power to the collection unit when the first power supply unit does not supply power to the collection unit.

2. The photovoltaic data collection device of claim 1, wherein, Further comprising: a first housing unit, the inside of which is provided with the collection unit, the first power supply unit, the sampling unit and the control unit, and which is detachably connected with the external power supply device.

3. The photovoltaic data collection device of claim 2, wherein, The first housing unit comprises: a first housing element, the inside of which is provided with the collection unit, the first power supply unit, the sampling unit and the control unit; at least one first electrical connection element, which is arranged on the side of the first housing element and is electrically connected with the control unit and the external power supply device respectively; at least one first connection element, which is arranged on the side of the first housing element and is detachably connected with the external power supply device.

4. The photovoltaic data acquisition device of any of claims 1-3, wherein, Further comprising: a communication unit in communication connection with the control unit; and / or a first indication unit in communication connection with the first power supply unit, used for displaying the working state of the first power supply unit.

5. The photovoltaic data collection device of claim 4, wherein, The communication unit comprises: a plurality of communication interface elements, each of which is in communication connection with the control unit.

6. An external power supply device for connecting with the photovoltaic data acquisition device as claimed in any one of claims 1 to 5, characterized in that, The photovoltaic data acquisition device comprises: a second power supply unit connected with the collection unit and the control unit of the photovoltaic data acquisition device, used for making the external power supply device supply power to the collection unit when the first power supply unit of the photovoltaic data acquisition device does not supply power to the collection unit.

7. The external power supply device according to claim 6, wherein Further comprising: a second housing unit, the inside of which is provided with the second power supply unit, and which is detachably connected with the photovoltaic data acquisition device.

8. The external power supply of claim 7, wherein, The second housing unit comprises: a second housing element, the inside of which is provided with the second power supply unit; at least one second electrical connection element, which is arranged on the side of the second housing element and is electrically connected with the second power supply unit and the photovoltaic data acquisition device respectively; at least one second connection element, which is arranged on the side of the second housing element and is detachably connected with the photovoltaic data acquisition device.

9. The external power supply device according to any one of claims 6 to 8, characterized by Further comprising: a second indication unit in communication connection with the second power supply unit, used for displaying the working state of the second power supply unit.

10. An uninterrupted photovoltaic data acquisition system, characterized by, The photovoltaic data acquisition device comprises: the photovoltaic data acquisition device according to any one of claims 1 to 5. The external power supply device according to any one of claims 6-9, wherein the external power supply device is connected to the photovoltaic data acquisition device.

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