TWI409606B - Solar energy control system - Google Patents

Abstract

A solar energy control system includes a solar energy operated absorption board, a charging battery, and a load. The solar energy operated absorption board is connected to the load via the charging battery. The solar energy control system further includes a monitor device, a first ZigBee module, a second ZigBee module, and a solar energy controller. The monitor device is connected to the first ZigBee module. The second ZigBee module is connected to the solar energy controller. The monitor device controls the solar controller through the first ZigBee module and the seconde ZigBee module by a wireless mode, and sets controlling parameters. The solar energy controller is connected to the charging battery, the solar energy operated absorption board, and the load. The charging battery provides a working voltage to the solar energy controller. The solar energy controller controls the solar energy operated absorption board to charge the charging battery. The solar energy controller controls a voltage for the charging battery providing to the load by detecting a current of the load.

Description

Solar control system

The present invention relates to a solar energy control system.

In the process of using Bluetooth technology, people have found that although there are many advantages of Bluetooth technology, there are still many defects. For industrial, home automation control and telemetry and remote control, Bluetooth technology is too complicated, power consumption, distance is short, networking The scale is small, and the demand for wireless communication in industrial automation is becoming more and more intense. Therefore, the ZigBee (new wireless network data communication technology) agreement was officially launched in 2004. ZigBee technology is in line with the demand for wireless communication and data transmission in industrial automation. The ZigBee network is power-saving, reliable, low-cost, large-capacity, and safe, and can be widely used in various automatic control fields. Generally, the solar controller needs to connect the physical connection line to set the schedule and related parameters. If a large number of solar controllers need to be set, the physical connection method is complicated and difficult.

In view of the above, it is necessary to provide a solar control system that can control the solar controller through a wireless network.

A solar control system comprising a solar panel, a rechargeable battery and a load, the solar panel being connected to the load through the rechargeable battery, wherein the solar control system further comprises a monitoring device, a first ZigBee module, One second a ZigBee module and a solar controller, the monitoring device is connected to the first ZigBee module, the solar controller comprises a microprocessor and a communication interface, and an output end of the rechargeable battery is connected to one input end of the microprocessor, An output end of the solar panel is connected to one input end of the microprocessor, and an output end of the load is connected to one input end of the microprocessor, and an input end of the rechargeable battery is connected to an output end of the microprocessor, the micro processing The device is connected to the second ZigBee module via the communication interface, the monitoring device monitors the state of the microprocessor and sends a control command to the microprocessor, so that the microprocessor detects the voltage of the solar panel according to the received control command and according to The voltage condition determines the day and night time. When the microprocessor detects that the voltage of the solar panel is large, the microprocessor determines that it is daytime and controls the solar panel to charge the rechargeable battery. The rechargeable battery has no output voltage provided to the battery. The load; when the voltage of the solar panel becomes small, the microprocessor determines that it is nighttime and controls the rechargeable battery to supply power to the load.

Compared with the prior art, the computer obtains information about the solar controller through the first and second ZigBee modules, and sends the relevant instructions to control the solar controller according to the information, thereby realizing solar energy in the wireless network. Effective control and management of the controller.

100‧‧‧ computer

20‧‧‧Second ZigBee Module

40‧‧‧ solar panels

60‧‧‧ load

32‧‧‧Reducing device

10‧‧‧First ZigBee Module

30‧‧‧Solar controller

50‧‧‧Rechargeable battery

31‧‧‧Microprocessor

33‧‧‧Serial interface

1 is a block diagram showing the working principle of a preferred embodiment of a solar energy control system of the present invention.

2 is a schematic diagram of the topology structure of FIG. 1.

Referring to FIG. 1, a preferred embodiment of the solar control system of the present invention includes a computer 100 having a serial interface, a first ZigBee module 10, a second ZigBee module 20, a solar controller 30, and a solar panel. 40, a rechargeable battery 50 and a load 60. The solar controller 30 includes a microprocessor 31, a buck 32 and a serial interface 33. The serial interface 33 is a serial interface of RS-232 (the technical standard for serial binary data exchange between data terminal equipment and data communication equipment), and other types of communication interfaces can also be selected. The computer 100 can also be replaced with other types of monitoring equipment.

The input end of the rechargeable battery 50 is respectively connected to the output end of the solar panel 40 and the output end of the microprocessor 30. The output end of the rechargeable battery 50 is respectively connected to the input end of the buck 32 and the input of the load 60. The output end of the buck 32 is connected to one input end of the microprocessor 31, and the output end of the solar panel 40 and the output end of the load 50 are respectively connected to two inputs of the microprocessor 30, the computer The first ZigBee module 20 is connected to the input end of the first ZigBee module 10 through a serial interface. The second ZigBee module 20 is connected to the microprocessor 31 via the serial interface 33 of the solar controller 30. The first ZigBee module 10 and The second ZigBee module 20 performs wireless communication.

In this embodiment, the rechargeable battery 50 provides an operating voltage for the solar controller 30 and the load 60. When the voltage of the rechargeable battery 50 is too large, the buck device 32 is required to step down the voltage to a suitable voltage. The microprocessor 31 detects the voltage of the solar panel 40 and determines the day and night time according to the voltage. When the voltage of the solar panel 40 is large, the microprocessor 31 detects the voltage and It is determined that it is daytime, and the solar panel 40 is controlled to charge the rechargeable battery 50. The rechargeable battery 50 has no output voltage supplied to the load 60; when the voltage of the solar panel 40 becomes small, the microprocessor 31 detects the voltage. It is determined to be nighttime, and the rechargeable battery 50 is controlled to supply power to the load 60, that is, the load 60 is supplied with an operating voltage. The microprocessor 31 can adjust the rechargeable battery 50 to be provided according to the detected current condition of the load 60. The voltage of the load 60. Through the computer 100, the time schedule of the solar controller 30 and the voltage threshold of the solar panel 40 detected by the microprocessor 31 can be set. For example, the load 60 is a street light, and the light needs to be turned on from 6 pm to 6 am. For the rest of the time, it is necessary to turn off the light or set the voltage of the solar panel 40 to be less than a voltage value, and turn off the light when the voltage is greater than another voltage value. The computer 100 obtains related information of the solar controller 30 through the first and second ZigBee modules 10 and 20, and controls the solar controller 30 according to the information transmission related instruction, thereby implementing the solar controller 30. Effective control and management.

A coordinator must exist in the ZigBee network to form the entire network. In this embodiment, the first ZigBee module 10 connected to the computer is set as a coordinator, and the second ZigBee module 20 connected to the solar controller 30 is set. For the router, please continue to refer to FIG. 2. When the second ZigBee module 20 connected to the plurality of solar controllers 30 is located within the communication range of the first ZigBee module 10 connected to the computer 100, the computer 100 can pass through. The ZigBee network directly controls each solar controller 30. Other types of topologies can be built according to actual needs.

The solar control system of the invention replaces the traditional physical connection line technology through the ZigBee wireless communication technology, obtains the state of the solar controller by wireless communication and transmits it to the computer, and sets the schedule and related parameters of the solar controller through the computer. Using the routing function of the ZigBee wireless module, each node on the ZigBee wireless network can transfer information, so by connecting the computer to any node in the ZigBee wireless network, all solar energy can be controlled. The controller improves the convenience of management.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. but The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

100‧‧‧ computer

20‧‧‧Second ZigBee Module

40‧‧‧ solar panels

60‧‧‧ load

32‧‧‧Reducing device

10‧‧‧First ZigBee Module

30‧‧‧Solar controller

50‧‧‧Rechargeable battery

31‧‧‧Microprocessor

33‧‧‧Serial interface

Claims (5)

A solar control system comprising a solar panel, a rechargeable battery and a load, the solar panel being connected to the load through the rechargeable battery, wherein the solar control system further comprises a monitoring device, a first ZigBee module, a second ZigBee module and a solar controller, the monitoring device is connected to the first ZigBee module, the solar controller comprises a microprocessor and a communication interface, and the output end of the rechargeable battery is connected to the microprocessor An input end of the solar panel is connected to an input end of the microprocessor, and an output end of the load is connected to one input end of the microprocessor, and an input end of the rechargeable battery is connected to an output end of the microprocessor. The microprocessor is connected to the second ZigBee module via the communication interface, and the monitoring device monitors the state of the microprocessor and sends a control command to the microprocessor, so that the microprocessor detects the solar panel according to the received control command. The voltage is determined according to the voltage and the day and night time. When the microprocessor detects that the voltage of the solar panel is large, the microprocessor determines that Day and controlling the solar panel for charging a rechargeable battery, the rechargeable battery without output voltage to the load; when the voltage of the solar panel becomes small, and the microprocessor determines at night for controlling the battery charging load. The solar control system of claim 1, wherein a step-down device is connected in series between the output end of the rechargeable battery and the input end of the microprocessor, and when the voltage of the rechargeable battery is too large, the voltage is lowered. The voltage regulator steps down the voltage of the rechargeable battery to a suitable voltage and supplies it to the microprocessor. The solar control system of claim 1, wherein the communication interface is an RS-232 serial interface. The solar control system of claim 1, wherein the monitoring device is a computer. The solar control system of claim 1, wherein the first ZigBee module is a coordinator, and the second ZigBee module is a router.