KR102597586B1 - Independent power supply device for IoT sensor - Google Patents

Abstract

The present invention relates to an independent power supply device for IoT sensors, and more specifically, to a device that produces power using indoor artificial lighting and independently and continuously supplies the produced power to various IoT devices, including IoT sensors. This is about an IoT sensor independent power supply using Robuskite.
The independent power supply device for IoT sensors according to the present invention utilizes perovskite to produce power using low-light indoor artificial lighting, and independently and continuously supplies the produced power to various IoT devices, including IoT sensors. It can increase the operational reliability of IoT sensors and devices and improve the quality of services using IoT.

Description

{Independent power supply device for IoT sensor}

The present invention relates to an independent power supply device for IoT sensors, and more specifically, to a device that produces power using indoor artificial lighting and independently and continuously supplies the produced power to various IoT devices, including IoT sensors. This is about an IoT sensor independent power supply using Robuskite.

In general, IoT (Internet of Things) is an intelligent technology and service that connects all objects based on the Internet to communicate information between people and objects and between objects, and is a new business that can create various solutions as shown in Figure 1. It is a field.

In order to provide various IoT services, core technologies such as smart sensor technology, wireless communication technology, information and communication technology, and application software technology are required.

Here, a smart sensor refers to a high-function, high-precision, high-convenience, high-value sensor that combines logic, judgment, and communication functions with existing sensors to perform data processing, automatic calibration, self-diagnosis, and decision-making functions.

Conventional power technologies related to smart sensors mainly use external power supplies (commercial power sources or large capacity batteries) and built-in batteries for sensing and wireless communication. The method of using the external power supply described above not only complicates field installation and makes it difficult to change the location after installation, but also lacks flexibility, such as expansion of the wireless sensor system.

In addition, in the case of the built-in battery usage method described above, it is possible to manufacture a smart sensor in an integrated form using the built-in battery, but it is impossible to implement a product with a long operating life due to battery capacity constraints due to limitations in product size. Therefore, there is a problem of the inconvenience of having to periodically replace the built-in battery.

Republic of Korea registered patent 10-2133934 Republic of Korea registered patent 10-1901146 Republic of Korea registered patent 10-2067007 Republic of Korea Public Patent No. 10-2021-0084140

The present invention is intended to solve the above-described conventional problems, by producing power using indoor artificial lighting and independently and continuously supplying the generated power to various IoT devices, including IoT sensors. The purpose is to provide an independent power supply device for IoT sensors that can increase operational reliability and improve the quality of services using IoT.

The independent power supply device for IoT sensors according to the present invention to achieve the above purpose is designed to connect a power cable for supplying power to an IoT sensor and a signal cable for receiving sensor information measured from the IoT sensor. A substrate portion provided with a connection terminal on one side; a power generation unit installed on the substrate to produce power using artificial light; a battery unit that stores power produced by the power generation unit; a wireless communication unit that wirelessly transmits sensor information measured by the IoT sensor to the outside; A controller controls charging and discharging of the battery unit and controls the operation of the wireless communication unit, and the power generation unit includes a perovskite solar cell.

The independent power supply device for IoT sensors according to the present invention is characterized by further comprising an angle adjustment unit for adjusting the angle of the power generation unit.

The angle adjusting part of the independent power supply device for IoT sensors according to the present invention has one end fixed to the center of the power generation unit and the other end having a support shaft rotatable in all directions installed on the bearing unit provided in the substrate unit, and parallel to each other. A first magnetic material and a second magnetic material respectively installed below the edges of the first and second sides of the power generation unit, and a third and fourth magnetic material of the power generation unit arranged to be perpendicular to the first and second sides. A third magnetic material and a fourth magnetic material are installed at the bottom of the side edges, respectively, and the upper part is installed at the lower part of the first magnetic material and the second magnetic material so that the upper part is facing the first magnetic material and the second magnetic material, and the lower part is installed on the substrate. A first electromagnet and a second electromagnet installed, and a third electromagnet installed on the lower part of the third magnetic body and the fourth magnetic body with the upper part facing the third magnetic body and the fourth magnetic body, and the lower part being installed on the substrate. and a fourth electromagnet.

The independent power supply device for IoT sensors according to the present invention further includes a power sensor unit that measures the current value or voltage value output from the power generation unit, and the controller controls the current value or voltage value measured by the power sensor unit. It is characterized in that it supports a search mode to search for the optimal angle of the power generation unit that is the maximum.

The search mode of the controller includes a first search mode for attaching the first magnetic material to the first electromagnet, a second search mode for attaching the second magnetic material to the second electromagnet, and a second search mode for attaching the third magnetic material to the second electromagnet. A third search mode for attaching the third electromagnet, a fourth search mode for attaching the fourth magnetic body to the fourth electromagnet, and a third search mode for separating the first to fourth magnetic bodies from the first to fourth electromagnets. It includes five search modes, and the controller independently controls the operation of the first to fourth electromagnets according to the first to fifth search modes.

The independent power supply device for IoT sensors according to the present invention utilizes perovskite to produce power using low-light indoor artificial lighting, and independently and continuously supplies the produced power to various IoT devices, including IoT sensors. It can increase the operational reliability of IoT sensors and devices and improve the quality of services using IoT.

Figure 1 is a perspective view of an independent power supply device for IoT sensors according to the present invention.
Figure 2 is an exploded perspective view of an independent power supply device for IoT sensors according to the present invention.
Figure 3 is a block diagram showing the control system of the independent power supply device for IoT sensors according to the present invention.
Figures 4 and 5 are perspective views showing the operating state of the independent power supply device for IoT sensors according to the present invention.

Hereinafter, an independent power supply device for IoT sensors according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

1 to 5 show an independent power supply device 1 for IoT sensors according to the present invention. 1 to 5, the independent power supply device 1 for IoT sensors according to the present invention includes a substrate unit 10, a power generation unit 20, a battery unit 30, and a wireless communication unit 40. It is provided with an angle adjustment unit, a power sensor unit 60, and a controller 70.

The IoT sensor applied in the independent power supply device (1) for IoT sensors according to the present invention can adopt one or more of the common wireless communication technologies, and can transmit data collected using this to the outside wirelessly. You can.

In addition, the IoT sensor (7) is a temperature sensor, a humidity sensor, a vibration sensor, a noise sensor, a contact sensor, a touch sensor, a pressure sensor, an acoustic sensor, an ultrasonic sensor, an image sensor, and a microphone. , proximity sensor, illuminance sensor, IR motion sensor, IR body temperature sensor, etc. can be applied.

The substrate 10 is provided with a connection terminal 11 on one side to connect a power cable for supplying power to the IoT sensor 7 and a signal cable for receiving sensor information measured by the IoT sensor.

The power generation unit 20 is installed on the substrate unit 10 and produces power using artificial light from indoor lighting or sunlight introduced into the room.

The power generation unit 20 includes a transparent substrate, a transparent electrode layer laminated on the transparent substrate, an electron transport layer laminated on the transparent electrode layer, a perovskite layer laminated on the electron transport layer, and a perovskite layer laminated on the perovskite layer. It is comprised of a perovskite solar cell including a hole transport layer and a metal electrode layer stacked on the hole transport layer.

Transparent substrates can be made of transparent materials such as glass, polycarbonate, polymethyl methacrylate, polyethylene terephthalate, polyamide, and polyethresulfone.

The transparent electrode layer may be made of ITO (INdium Tin Oxide), SnO2, IZO (In2O3-ZnO), AZO (aluminum doped ZnO), GZO (gallium doped ZnO), etc., and is preferably ITO (INdium Tin) with a high work function. It is good to coat it with oxide.

By processing ITO into a spattering target and sputtering it on a substrate, a transparent transparent electrode layer can be formed. Alternatively, a transparent electrode layer can be formed by dissolving ITO and spraying it on the substrate, or by immersing it in a solution on the substrate.

The electron transport layer can be formed by coating a solution containing an electron transport organic material in a solvent and then heat treating it. Solvents such as chloroform, chlorobenzene, methyl chloride, toluene, methyl isobutyl ketone, acetone, tetrahydrofuran, and isopropyl ether can be used.

The perovskite layer may have a perovskite crystal structure represented by Chemical Formula 1 below.

Here, A is any one of CH ₃ NH ₃ ⁺ , HC(NH ₂ ) 2 ⁺ , NH ₄ ⁺ , NF ₄ ⁺ , NCl ₄ ⁺ , CH ₃ PH ₃ ⁺ , and M is Cu ²⁺ , Ni ²⁺ , Any of Co ²⁺ , Fe ²⁺ , Mn ²⁺ , Cr ²⁺ , Pb ²⁺ , Cd ²⁺ , Ge ²⁺ , Pd ²⁺ , Yb ²⁺ , Sn ²⁺ , Sr ²⁺ , or Ca ²⁺ It could be one.

The hole transport layer is formed by applying a hole transport material and may be selected from the group consisting of poly(styrenesulfonate), polyaniline, polypyrrole, copper phthalocyanine, polyhiophenylenevinylene, polyvinylcarbazole, polyphenylenevinylene, and poly(methylphenylsilane), or a mixture thereof. It is not necessarily limited.

The metal electrode layer may be made of metal, metal alloy, semimetal, or light-transmitting transparent oxide. Examples of metals include alkaline earth metals such as magnesium (Mg), transition metals such as aluminum (Al), silver (Ag), gold (Au), and platinum (Pt), rare earth elements, and semimetals such as selenium (Se). there is. Examples of metal alloys include sodium-potassium alloy, magnesium-indium alloy, and aluminum-lithium alloy.

The battery unit 30 is installed on the substrate unit 10, stores power produced by the power generation unit 20, and supplies the stored power to the IoT sensor 7.

The wireless communication unit 40 wirelessly transmits sensor information measured by the IoT sensor 7 to the outside.

The wireless communication unit 40 may be omitted when the IoT sensor 7 is equipped with its own wireless communication module.

The angle adjusting unit is for adjusting the angle of the power generation unit 20, and the support shaft 25 and the first direction parallel to the third side 23 of the power generation unit 20 are used to adjust the angle. It is configured to include an angle adjustment unit and a second angle adjustment unit for adjusting the angle around a second direction parallel to the first side 21 of the power generation unit 20 and perpendicular to the first direction.

The first angle adjusting part includes a first magnetic material 51 and a second magnetic material 52, a first electromagnet 55 and a second electromagnet 56, and the second angle adjusting part includes a third magnetic material 53 and a second electromagnet 56. It is composed of four magnetic materials (54), a third electromagnet (57), and a fourth electromagnet (58).

One end of the support shaft 25 is fixed to the center of the power generation unit 20, and the other end is attached to the bearing unit 15 provided on one side of the substrate 10 corresponding to the center of the power generation unit 20 in an omnidirectional direction. It is installed rotatably. The lower portion of the support shaft 25 is formed in a ball shape, and the bearing portion 15 is formed to rotatably support the lower portion of the support shaft 25. The support shaft 25 and the bearing portion 15 can be ball joints.

The first magnetic material 51 and the second magnetic material 52 are installed at the lower edges of the first side 21 and the second side 22 of the power generation unit 20, respectively, and are magnetized when a magnetic field is applied to exhibit magnetic properties. can be applied.

The third magnetic material 53 and the fourth magnetic material 54 are formed on the third side 23 of the power generation unit 20 orthogonal to the first side 21 and the second side 22 of the power generation unit 20, respectively. It is installed at the bottom of the edge of the fourth side (24), and can be applied to be magnetized and become magnetic when a magnetic field is applied.

The first electromagnet 55 and the second electromagnet 56 are installed below the first magnetic material 51 and the second magnetic material 52 with their upper portions facing the first magnetic material 51 and the second magnetic material 52, respectively. , the lower part is fixed to the substrate portion 10. Each of the first electromagnet 55 and the second electromagnet 56 can attract the first magnetic material 51 or the second magnetic material 52 by generating a magnetic force around it when current is supplied from the battery unit 30. there is.

The third electromagnet 57 and fourth electromagnet 58 are installed below the third magnetic material 53 and fourth magnetic material 54 with their upper portions facing the third magnetic material 53 and fourth magnetic material 54, respectively. , the lower part is fixed to the substrate portion 10. Each of the third electromagnet 57 and the fourth electromagnet 58 can generate magnetic force around itself when current is supplied from the battery unit 30 to attract the third magnetic material 53 or the fourth magnetic material 54. there is.

The power sensor unit 60 measures the current or voltage value output from the power generation unit 20, and transmits the measured current or voltage value to the controller 70 in real time.

The controller 70 controls the charging and discharging of the battery unit 30, the angle adjustment unit, and the wireless communication unit 40, and the power generation unit ( 20) supports a search mode to search for the optimal angle.

The search mode of the controller 70 includes a first search mode in which the first magnetic material 51 is attached to the first electromagnet 55 and the power generation unit 20 is tilted toward the first magnetic material 51, and the second magnetic material 52 A second search mode in which the power generation unit 20 is tilted toward the second magnetic body 52 by attaching it to the second electromagnet 56, and the power generation unit 20 by attaching the third magnetic body 53 to the third electromagnet 57. ) a third search mode that tilts toward the third magnetic material (53), and a fourth search mode that tilts the power generation unit (20) toward the fourth magnetic material (54) by attaching the fourth magnetic material (54) to the fourth electromagnet (58). and a fifth search mode that separates the first to fourth magnetic materials 51 to 54 from the first to fourth electromagnets 55 to 58, respectively.

The controller 70 can execute the first to fifth search modes by independently controlling the operations of the first to fourth electromagnets 55 to 58, respectively.

The independent power supply device (1) for IoT sensors according to the present invention described above has been described with reference to the attached drawings, but this is merely an example, and those skilled in the art will recognize various modifications and equivalents therefrom. It will be appreciated that other embodiments are possible.

Therefore, the true scope of technical protection of the present invention should be determined only by the technical spirit of the attached claims.

1: Independent power supply device
10: substrate part
20: Power generation department
30: Battery part
40: Wireless Communication Department
51: first magnetic substance
52: second magnetic substance
55: 1st electromagnet
56: second electromagnet
60: Power sensor unit
70: controller

Claims (5)

A substrate portion provided with a connection terminal on one side to connect a power cable for supplying power to an IoT sensor and a signal cable for receiving sensor information measured by the IoT sensor;
a power generation unit installed on the substrate to produce power using artificial light;
a battery unit that stores power produced by the power generation unit;
a wireless communication unit that wirelessly transmits sensor information measured by the IoT sensor to the outside;
A controller that controls charging and discharging of the battery unit and controls the operation of the wireless communication unit,
The power generation unit includes a perovskite solar cell,
Further comprising an angle adjusting unit for adjusting the angle of the power generation unit,
The angle adjusting unit has one end fixed to the center of the power generation unit and the other end having a support shaft rotatable in all directions on the bearing unit provided on the substrate, and the first and second sides of the power generation unit arranged to be parallel to each other. A first magnetic material and a second magnetic material respectively installed below the edge of the side, and a third magnetic material respectively installed under the third and fourth side edges of the power generation unit arranged to be perpendicular to the first and second sides. 4 A magnetic body, a first electromagnet and a second electromagnet installed below the first magnetic body and the second magnetic body with the upper part facing the first magnetic body and the second magnetic body and the lower part being installed on the substrate, A third electromagnet and a fourth electromagnet are installed at the bottom of the third magnetic material and the fourth magnetic material, with the upper portions facing the third magnetic material and the fourth magnetic material, respectively, and the lower portions are installed on the substrate,
It is further provided with a power sensor unit that measures the current value or voltage value output from the power generation unit,
The controller supports a search mode to search for the optimal angle of the power generation unit at which the current value or voltage value measured by the power sensor unit is maximum,
The search mode of the controller includes a first search mode for attaching the first magnetic material to the first electromagnet, a second search mode for attaching the second magnetic material to the second electromagnet, and a second search mode for attaching the third magnetic material to the second electromagnet. A third search mode for attaching the third electromagnet, a fourth search mode for attaching the fourth magnetic body to the fourth electromagnet, and a third search mode for separating the first to fourth magnetic bodies from the first to fourth electromagnets. 5Includes navigation mode,
The controller is an independent power supply device for an IoT sensor, characterized in that the controller independently controls the operation of the first to fourth electromagnets according to the first to fifth search modes.
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