Internet of Things remote switch equipment control system with electric energy metering function

Abstract

The utility model discloses an internet of things remote switch equipment control system with electric energy metering. The system comprises a main controller, a sensor, a control panel, a current transformer, a remote control transmitter, a cloud platform, a mobile terminal APP and a PC terminal upper computer. The main controller adopts an LTE-CAT1 module, is arranged on a circuit substrate, and is integrated with an AC-DC 12V voltage conversion module, a remote control receiver, a control panel connecting port, an electric energy metering chip, a voltage transformer, a current transformer connecting port, a relay, a sensor connecting port and a protective tube. Instructions are sent through a mobile terminal APP, a PC terminal upper computer, a remote control emitter or a control panel and are transmitted to a main controller through a cloud platform, and on-off of a relay is controlled to start and stop equipment; meanwhile, the main controller collects electric energy signals, calculates voltage, current, power and electricity consumption data and transmits the data to the cloud platform, and remote monitoring and electric energy metering are achieved.

Description

Technical Field

[0001] This invention relates to the field of Internet of Things (IoT) technology, and in particular to a remote switching equipment control system with power metering based on IoT. Background Technology

[0002] The control of agricultural equipment such as plant grow lights, irrigation pumps, aerators in fishponds, and ventilation fans in aquaculture farms is mostly achieved through manual control using circuit breakers or electrical switches. This often results in issues like inefficient and untimely on / off times, lack of sensor integration, and excessive manpower requirements. The Internet of Things (IoT) connects things to things and people to things, improving efficiency, conserving resources, and fulfilling people's aspirations for a better life. Currently, there are IoT remote switches for remote control of equipment, but these only provide remote switching functionality and cannot monitor the operating status of the controlled equipment, offer near-field control, provide overload protection, or provide automatic control. For example, they can turn on grow lights and water pumps, but cannot monitor the voltage, current, power, and electricity consumption during operation, and cannot promptly handle overload situations. Summary of the Invention

[0003] To address the aforementioned problems, the purpose of this invention is to provide a remote switching equipment control system that can remotely turn the equipment on and off, as well as perform near-field control (remote control and control panel control), and includes power metering and overload protection.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] An IoT-based remote switching device control system with energy metering is characterized by comprising: a main controller, a temperature and humidity sensor and a light intensity sensor connected to the main controller, a control panel connected to the main controller, a current transformer for sampling the current of the controlled device connected to the main controller, a remote control transmitter, a cloud platform, a mobile APP, and a PC-based host computer; the mobile APP and PC-based host computer send commands to the cloud platform, which then transmits the received commands to the main controller, which controls relays to open and close the controlled device; the remote control transmitter sends open and close commands, which the main controller decodes and controls relays to open and close the controlled device; the control panel includes open and close buttons, which the main controller detects and controls relays to open and close the controlled device; the main controller calculates the voltage, current, power, and energy consumption data of the controlled device based on the collected data and transmits it to the cloud platform, which then transmits the received data to the mobile APP and PC-based host computer, thus realizing the monitoring of the controlled device's operation and energy metering.

[0006] Furthermore, the main controller includes a circuit board, characterized in that: the main controller on the circuit board is developed using an LTE-CAT1 module OPENCPU solution to realize computation and low-to-medium speed 4G network communication transmission; the circuit board includes an AC-DC converter for powering the main controller. A 12V voltage conversion module; the circuit board includes a remote control receiver connected to the LTE-CAT1 module for receiving remote control signals; the circuit board includes a control panel connection port connected to the LTE-CAT1 module for near-field control; the circuit board includes an energy metering chip connected to the LTE-CAT1 module for energy metering calculation; the circuit board includes a voltage transformer connected to the energy metering chip for voltage sampling; the circuit board includes a current transformer connection port connected to the energy metering chip for current sampling of the controlled device; the circuit board includes a relay for controlling the on / off state of the phase line, with the relay coil control terminal connected to the LTE-CAT1 module and the relay load terminal connected in series with the phase line; the circuit board includes sensor connection ports for temperature and humidity acquisition and light intensity acquisition; the circuit board includes a fuse connected to the phase line on the circuit board for overload protection, with the fuse connected in series between the relay and the controlled device.

[0007] Furthermore, the temperature and humidity sensor and the light intensity sensor are connected to the main controller:

[0008] The temperature and humidity sensor connected to the main controller collects the temperature and humidity of the environment near the controlled equipment.

[0009] A light intensity sensor connected to the main controller collects the light intensity of the environment near the controlled equipment;

[0010] The main controller can automatically turn the controlled equipment on or off according to changes in temperature and humidity. For example, in a breeding farm, the fan is turned on when the temperature is higher than the threshold and turned off when the temperature is lower than the threshold, thus achieving automatic temperature control.

[0011] The main controller can automatically turn the controlled equipment on or off according to changes in light intensity. For example, in a plant growing area, the supplementary light is turned on when the light intensity is below the threshold and turned off when the light intensity is above the threshold, thus achieving automatic supplementary lighting.

[0012] Furthermore, the current transformer for sampling the current of the controlled equipment, which is connected to the main controller, can collect the current signal value of the controlled equipment and calculate the current value of the controlled equipment through the power metering chip.

[0013] Furthermore, the cloud platform enables communication between the mobile app, the PC host computer, and the IoT remote switch.

[0014] Furthermore, the mobile app and PC host computer send control commands to the cloud platform to achieve remote switching control of the Internet of Things; the mobile app and PC host computer receive device operation status data from the cloud platform to achieve operation status monitoring of the controlled device.

[0015] Furthermore, the remote control transmitter enables remote switching control of the Internet of Things by sending remote control command signals, and the operating status of the controlled device is transmitted to the mobile APP and PC host computer through the cloud platform.

[0016] Furthermore, the control panel connected to the main controller enables remote switching control of the Internet of Things via operation buttons, and the operating status of the controlled device is transmitted to the mobile APP and PC host computer through the cloud platform.

[0017] The present invention has the following beneficial effects:

[0018] The main controller is developed using the LTE-CAT1 module OPENCPU solution to achieve computing and low-to-medium speed 4G network transmission, saving one CPU compared to traditional development solutions; the hardware design is simple, highly integrated, and highly intelligent; it saves costs and is smaller in size.

[0019] It enables remote control and near-field control, as well as equipment operation monitoring and power metering.

[0020] It features short-circuit and overload protection.

[0021] It requires minimal modification to the wiring of the controlled equipment, making it easy to design and install in the distribution box. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main controller structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the overall system of the present invention. Detailed Implementation

[0024] Reference Figure 1 and Figure 2 The present invention provides a specific embodiment: an IoT remote switching device control system with power metering, such as... Figure 2 As shown, it includes a main controller (16), a cloud platform (15), a mobile APP (13), a PC host computer (14), a sensor (18), a control panel (17), a remote controller (21), a current transformer (19), and a load (20).

[0025] The hardware structure of the main controller (16) is as follows: Figure 1As shown, it includes a main controller board (1), an LTE-CAT1 module (2) for computing and low-to-medium speed 4G network transmission, an AC-DC 12V power supply (3) for power supply, a relay (4) for controlling the on / off state of the phase line, a remote control receiver (5) for receiving remote control command signals, an energy metering chip (6) for monitoring the energy parameters (voltage, current, power and power consumption) of the controlled equipment, a voltage transformer (7) for sampling the voltage of the controlled equipment, a current transformer connection port (8) for sampling the current of the controlled equipment, a fuse (9) for overload protection, a connection port (10) for acquiring temperature and humidity data, a connection port (11) for acquiring light intensity, and a control panel connection port (12) for connecting to the control panel.

[0026] The control terminal of the relay (4) coil is controlled by the LTE-CAT1 module (2), and the load terminal of the relay contact is connected in series with the phase line; the fuse (9) is connected in series between the relay (4) and the load.

[0027] Control equipment process:

[0028] The device can be turned on or off via mobile app, PC, remote control, or control panel.

[0029] The mobile APP (13) and the PC host computer (14) send commands to the cloud platform (15). The cloud platform (15) transmits the received commands to the main controller (16). After receiving the commands, the main controller (16) parses the commands and performs actions to turn the controlled device on or off, thereby realizing remote control of the device.

[0030] The remote controller (21) sends a command signal to the main controller (16). After receiving the remote control command, the main controller (16) decodes the command and executes the action of turning the controlled device on or off, thereby realizing near-field control of the device.

[0031] The control panel (17) has buttons for turning the device on and off. The control panel (17) is connected to the main controller (16) via a lead wire. The main controller (16) detects the button status and performs the action of turning the controlled device on or off, thereby realizing near-field control of the device.

[0032] Monitoring process of controlled equipment operation:

[0033] The main controller (16) performs the action of turning the controlled equipment on or off. The voltage transformer (7) and the current transformer (19) sample the voltage and current respectively. The power metering chip (6) calculates the sampled voltage and current data to obtain the voltage value, current value, power value and power consumption of the controlled equipment during operation. The power information calculated by the power metering chip (6) is transmitted to the main controller (16) through the serial port. The main controller (16) transmits the data to the mobile APP (13) and the PC host computer (14) through the cloud platform to realize the operation monitoring of the controlled equipment.

[0034] Protected equipment:

[0035] The main controller (16) acquires the voltage value during operation. A voltage value higher than 280V indicates a high voltage anomaly, and a voltage value lower than 180V indicates a low voltage anomaly. The main controller (16) shuts down the controlled device and sends a warning message to the mobile APP (13) and the PC host computer (14) through the cloud platform. The main controller (16) acquires the current value during operation and sets the threshold current of the controlled device through the mobile APP (13) and the PC host computer (14), such as a high current threshold of 15A and a low current threshold of 10A. When the device operates, a current value higher than 15A indicates a high current anomaly, and a current value lower than 10A indicates a low current anomaly. Normally, the main controller (16) shuts down the controlled device and sends a warning message to the mobile APP (13) and PC host computer (14) through the cloud platform. The main controller (16) contains a fuse (9). Select a fuse that matches the device's operation, such as 10A. If the device is short-circuited or overloaded, the fuse will blow, thereby cutting off the device's power supply. Moreover, the voltage and current sampling points are between the fuse and the device. If the obtained voltage and current values ​​are abnormal, the main controller (16) shuts down the controlled device and sends a warning message to the mobile APP (13) and PC host computer (14) through the cloud platform.

[0036] Operating modes: Automatic mode and Manual mode.

[0037] Automatic mode: Set the main controller to automatic mode through the mobile APP (13), PC host computer (14) and control panel (17), and set the threshold of the sensor to achieve automatic control; for example, in the application scenario of agricultural plant supplemental lighting, the light intensity low threshold is 500 Lux and the high threshold is 2000 Lux. When the light intensity obtained by the light intensity sensor is lower than the low threshold, the supplemental lighting is turned on, and when it is higher than the high threshold, the supplemental lighting is turned off; for example, in the application scenario of aquaculture cooling fan, the temperature low threshold is 25 degrees Celsius and the high threshold is 30 degrees Celsius. When the temperature value obtained by the temperature and humidity sensor is higher than the high threshold, the cooling fan is turned on, and when it is lower than the low threshold, the cooling fan is turned off.

[0038] Manual mode: The main controller can be set to manual mode via mobile APP (13), PC host computer (14) and control panel (17). In manual mode, the device needs to be turned on and off manually. Manual mode is the default mode.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that several modifications and variations can be made without departing from the principles of the present invention, and these modifications and variations should also be considered within the scope of protection of the present invention.

Claims

1. An Internet of Things remote switchgear control system with energy metering, characterized by: The application relates to a remote control system for controlling a device, which comprises a main controller, a temperature and humidity sensor and an illumination intensity sensor connected to the main controller, a control panel connected to the main controller, a current transformer for sampling the current of the controlled device connected to the main controller, a remote control transmitter, a cloud platform, a mobile terminal APP and a PC terminal host computer; the mobile terminal APP and the PC terminal host computer send commands to the cloud platform, the cloud platform transmits the received commands to the main controller, the main controller controls the attraction and disconnection of a relay to realize the opening and closing of the controlled device; the remote control transmitter sends opening and closing instructions, the main controller decodes the remote control instructions, controls the attraction and disconnection of the relay to realize the opening and closing of the controlled device; the control panel comprises opening and closing buttons, the main controller detects the button state, controls the attraction and disconnection of the relay to realize the opening and closing of the controlled device; the main controller calculates the voltage, current, power and power consumption data of the controlled device through the collected data, and transmits the data to the cloud platform, the cloud platform transmits the received data to the mobile terminal APP and the PC terminal host computer, and realizes the operation monitoring and power metering of the controlled device.

2. A remote switchgear control system for an IoT with electric energy metering according to claim 1, characterized in that: The main controller comprises a circuit substrate, the main control is developed by adopting an LTE-CAT1 module OPENCPU scheme on the circuit substrate, and the LTE-CAT1 module OPENCPU scheme realizes calculation and low-speed 4G network communication transmission; the circuit substrate comprises an AC-DC 12V voltage conversion module for supplying power to the main controller; the circuit substrate comprises a remote control receiver connected to the LTE-CAT1 module for receiving a remote control signal; the circuit substrate comprises a control panel connection port connected to the LTE-CAT1 module for near-field control; the circuit substrate comprises a power metering chip connected to the LTE-CAT1 module for power metering calculation; the circuit substrate comprises a voltage transformer connected to the power metering chip for voltage sampling; the circuit substrate comprises a current transformer connection port connected to the power metering chip for controlled device current sampling; the circuit substrate comprises a relay for controlling the on-off of a phase line, a relay coil control end is connected to the LTE-CAT1 module, and a relay load end is connected in series with the phase line; the circuit substrate comprises sensor connection ports for temperature and humidity collection and illumination intensity collection; the circuit substrate comprises a safety tube connected to the phase line on the circuit substrate for overload protection, and the safety tube is connected in series between the relay and the controlled device.

3. A charged energy metered Internet of Things remote switchgear control system according to claim 1, characterized by: The temperature and humidity sensor and the illumination intensity sensor connected to the main controller: The temperature and humidity sensor connected to the main controller collects the temperature and humidity of the environment near the controlled device; The illumination intensity sensor connected to the main controller collects the illumination intensity of the environment near the controlled device; The main controller can automatically open or close the controlled device according to the temperature and humidity change, for example, when the temperature is higher than a certain threshold value in a breeding farm, a fan is opened, and when the temperature is lower than a certain threshold value, the fan is closed, so that automatic temperature control is realized; The main controller can automatically open or close the controlled device according to the illumination intensity change, for example, when the illumination intensity is lower than a certain threshold value in a plant planting place, a light supplement lamp is opened, and when the illumination intensity is higher than a certain threshold value, the light supplement lamp is closed, so that automatic light supplement is realized.

4. The IoT remote switchgear control system with electric energy metering of claim 1, wherein: The current transformer connected with the main controller collects the current signal value of the controlled device, and obtains the current value of the controlled device through the electric energy metering chip.

5. A charged energy metered Internet of Things remote switchgear control system according to claim 1, characterized by: The cloud platform realizes communication of the mobile APP, the PC host computer and the Internet of Things remote switch.

6. A charged energy metered Internet of Things remote switch device control system according to claim 1, characterized by: The mobile APP and the PC host computer send control commands to the cloud platform to realize control of the Internet of Things remote switch; the mobile APP and the PC host computer receive device running state data from the cloud platform to realize running state monitoring of the controlled device.

7. A charged energy metered Internet of Things remote switchgear control system according to claim 1, characterized by: The remote control transmitter realizes control of the Internet of Things remote switch by sending remote control instruction signals, and the running state of the controlled device is transmitted to the mobile APP and the PC host computer through the cloud platform.

8. A remote switchgear control system for an IoT with electric energy metering according to claim 1, characterized in that: The control panel connected with the main controller realizes control of the Internet of Things remote switch by operating the keys, and the running state of the controlled device is transmitted to the mobile APP and the PC host computer through the cloud platform.

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