Intelligent early warning device of Internet of Things

Abstract

The utility model relates to an internet of things intelligent early warning device, which comprises a control unit and an intelligent on-off module, and the control unit comprises a main control module, an RS-485 module, a TYPE-C module, a network module and a power supply management module. Electric energy data of the intelligent on-off module are collected through the RS-485 module and are transmitted to an upper computer through the communication module. The power management module is provided with a rechargeable lithium battery and is provided with a dual-power-supply automatic switching circuit and a battery boost discharging circuit, when the mains supply is abnormal, the lithium battery is automatically switched to supply power, and it is ensured that the device works continuously and uploads data. And the TYPE-C module can realize automatic downloading of a program, and the operation is simple and convenient. And the network module stably performs data communication and displays a network state through an Ethernet transceiver chip and related elements. The device can accurately collect electric energy data, guarantees data transmission when the mains supply is abnormal, reduces the network operation cost, and effectively solves the problems that data collection is not timely, early warning is not accurate, and equipment cannot work continuously when the mains supply is cut off in a traditional monitoring mode.

Description

Technical Field

[0001] This utility model relates to the field of equipment monitoring technology, and in particular to an Internet of Things (IoT) intelligent early warning device. Background Technology

[0002] In today's digital age, with the rapid development of IoT technology, the need for intelligent monitoring and early warning of various devices is becoming increasingly urgent, especially in fields such as electrical equipment monitoring, industry, security, data center server rooms, and network applications. In other scenarios such as industry and security, there are also corresponding monitoring methods. Network monitoring focuses on network operation, while device monitoring focuses on whether the equipment itself is operating normally.

[0003] However, the existing technologies mentioned above still have many problems. In abnormal situations such as power outages, existing monitoring equipment cannot guarantee continuous operation and timely data uploads. Taking electrical equipment monitoring as an example, a power outage will cause the equipment to stop working, interrupting monitoring data and preventing timely upload of outage information to the host computer, severely affecting the continuity and reliability of monitoring. Furthermore, existing monitoring and early warning products and systems suffer from independent and unrelated monitoring directions. Different types of monitoring operate independently, and there is a lack of effective data interaction and collaboration between network monitoring and equipment monitoring, making it difficult to comprehensively analyze the causes of complex faults, further increasing the difficulty of troubleshooting and resolving them. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0005] Design an IoT intelligent early warning device, including a control unit and an intelligent on / off module. The control unit includes a main control module, an RS-485 module, a TYPE-C module, and a power management module that supplies power to the above three. The main control module is connected to the RS-485 module, the TYPE-C module, and the power management module respectively. The input terminal of the intelligent on / off module is connected to the mains power supply system, and the output terminal is connected to the monitored device through a power supply component. The main control module collects the power data of the intelligent on / off module through the RS-485 module, and transmits it to the host computer through the network module and the communication module. The communication module is communicatively connected to the host computer. The output terminal of the power supply component is connected to the mains power input terminal of the control unit and the communication module respectively. The communication module is communicatively connected to the monitored device.

[0006] The main board of the power management module is equipped with a rechargeable lithium battery. The power management module includes a dual power automatic switching circuit and a battery boost discharge circuit. The lithium battery is connected to the dual power automatic switching circuit through the battery boost discharge circuit and then outputs to the battery power input terminal of the communication module.

[0007] Preferably, the power management module further includes a 12V-5V DC power conversion circuit and a 5V-3.3V DC power conversion circuit. The 12V-5V DC power conversion circuit is used to supply power to the RS-485 module, and the 5V-3.3V DC power conversion circuit is used to supply power to the main control module, the TYPE-C module, and the network module.

[0008] Preferably, the host computer communicates with the communication module via the TCP / IP protocol to receive and process data.

[0009] Preferably, the dual-power automatic switching circuit includes an optocoupler U12, a P-MOS transistor Q6, a pull-down resistor R45, and a diode D3. The optocoupler U12 is connected to a 12V power supply through a resistor R11. The cathode of the LED in the optocoupler U12 is grounded, the collector of the transistor is connected to a 3.3V power supply, and the emitter is connected to a resistor R46 and then grounded, and is also connected to the main control module. The source of the P-MOS transistor Q6 is connected to the battery voltage input terminal VBAT, the drain is connected to the voltage output terminal VCC0, and the gate is connected to the pull-down resistor R45 and the 12V power supply respectively. The gate is connected to the pull-down resistor R45 and then grounded. The anode of the diode D3 is connected to the gate of the P-MOS transistor Q6, and the cathode is connected to the voltage output terminal VCC0.

[0010] Preferably, the battery boost discharge circuit includes a boost chip U10, the input terminal of which is connected to the battery BAT+, and the output terminal is connected to the battery voltage input terminal of the dual power supply automatic switching circuit through its peripheral circuit.

[0011] Preferably, the TYPE-C module includes a USB-to-serial chip U4. The USB-to-serial chip U4 receives a USB differential signal and outputs a TTL level signal, which is then connected to the main control module. The RTS# and DTR# pins of the USB-to-serial chip U4 are connected to transistors Q1 and Q2 through resistors R24 and R25, respectively. The collectors of transistors Q1 and Q2 are connected to the main control module to enable automatic program download.

[0012] Preferably, the network module includes an Ethernet transceiver chip U2. The Ethernet transceiver chip U2 is provided with a clock signal by an external crystal oscillator X1. The signal processed by the Ethernet transceiver chip U2 passes through matching resistors R3-R6 and is then transmitted and received through the TX and RX signal lines of the RJ45 physical interface to realize data communication with the host computer via Ethernet. At the same time, the voltage is divided by resistors R11, R12 and R13, R14 to drive LED indicators LED_SPEED and LED_LINK to display the network status.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This device connects to the intelligent switching module via an RS-485 module. Utilizing a specific Modbus communication protocol, it can efficiently and accurately collect the power data of the intelligent switching module, providing a reliable basis for subsequent data processing and analysis, and meeting the needs for refined management of electrical equipment.

[0015] 2. The power management module of this application is equipped with a rechargeable lithium battery and features a dual-power automatic switching circuit and a battery boost discharge circuit. When the mains power is normal, it is powered by the mains power; when the mains power fails, it can automatically and quickly switch to lithium battery power. The lithium battery, after being boosted by a boost chip, can stably output 12V power, ensuring continuous operation of the device and guaranteeing the continuity of data acquisition and transmission. Simultaneously, it can promptly provide mains power disconnection information to the host computer server, providing reliable power assurance for equipment operation.

[0016] 3. The TYPE-C module design of this application utilizes a USB-to-serial chip that converts USB differential signals to TTL level signals. Through the RTS# and DTR# pins in conjunction with a transistor, it enables automatic program downloading. This simplifies program downloading and serial port debugging, significantly improving development and maintenance efficiency. Stable communication and network visualization: In the network module, the Ethernet transceiver chip, combined with external crystal oscillators and resistors, accurately performs physical layer encoding and signal processing of electrical data, achieving stable data communication with the host computer via an RJ45 interface. Simultaneously, a resistor-driven voltage divider displays LED indicators showing network connection speed and status, allowing users to intuitively and promptly understand network conditions and ensuring stable and reliable data transmission.

[0017] 4. In the event of abnormal mains power or power outage, the lithium battery powers the dedicated optical modem, enabling abnormal warning information of the monitored equipment to still be sent to the host computer through the dedicated optical modem without the need for additional network environment settings. This simplifies the operation process and effectively reduces network operating costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the principle of this utility model;

[0019] Figure 2 This is the circuit diagram of the main control module;

[0020] Figure 3 This is the circuit diagram of the network module;

[0021] Figure 4 This is the circuit diagram for the TYPE-C module;

[0022] Figure 5 This is a circuit diagram for automatic switching between dual power supplies;

[0023] Figure 6 This is a circuit diagram for a battery boost discharge circuit;

[0024] Figure 7 This is a circuit diagram for a 12V to 5V DC power conversion.

[0025] Figure 8 This is a circuit diagram for a 5V to 3.3V DC power conversion. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] Example 1

[0028] An IoT-based intelligent early warning device, such as Figures 1 to 8 As shown, the system includes a control unit and an intelligent on / off module. The control unit comprises a main control module, an RS-485 module, a TYPE-C module, a network module, and a power management module that supplies power to the above four modules. The main control module is connected to the RS-485 module, the TYPE-C module, and the power management module. The input of the intelligent on / off module is connected to the mains power supply system, and the output is connected to the monitored device through a power supply component. The main control module collects the power data of the intelligent on / off module through the RS-485 module and uses a specific Modbus communication protocol to collect the power data of the intelligent on / off module, including voltage, current, power, etc., and then transmits it to the host computer through the network module and the communication module. The communication module communicates with the host computer through the TCP / IP protocol for receiving and processing data. The output of the power supply component is connected to the mains power input of the control unit and the communication module, respectively. The communication module communicates with the monitored device.

[0029] The main control module includes the main control chip U5, powered by the BUCK circuit. Pin 6 is used to detect the mains power supply, pins 8 and 9 are used for RS-485 communication to connect to the intelligent circuit breaker, and pins 34 and 35 are used for program download and debugging. Pins 10, 11, 12, 29, 30, 31, 33, 36, and 37 are used for Ethernet communication.

[0030] The RS485 module includes an RS-485 transceiver chip U3, which converts the TTL level of the main control chip U5 to the RS-485 level. Pins 1 and 4 are electrically connected to pins 8 and 9 of the main control chip U5. Automatic communication direction switching is achieved by pulling up pins 1 and 4. Pins 6 and 7 are connected to a smart circuit breaker.

[0031] The network module includes an Ethernet transceiver chip U2. The main control chip U1 performs physical layer encoding and signal processing on the collected power data. An external crystal oscillator X1 provides a clock signal for the Ethernet transceiver chip U2, and a resistor R32 provides bias to ensure the accuracy of data processing. The processed signal passes through matching resistors R3-R6 and is then sent to the host computer via the TX and RX signal lines of the RJ45 physical interface for sending and receiving information, thus enabling data communication with the host computer via Ethernet. Simultaneously, the network module uses resistors R11, R12, R13, and R14 to create a voltage divider, driving LED indicators LED_SPEED and LED_LINK to display the network connection speed and status, allowing users to easily understand the network situation.

[0032] The TYPE-C module includes a USB-to-serial chip U4. The USB-to-serial chip U4 receives a USB differential signal and outputs a TTL level signal, which is then connected to the main control module. The RTS# and DTR# pins of the USB-to-serial chip U4 are connected to transistors Q1 and Q2 through resistors R24 and R25, respectively. The collectors of transistors Q1 and Q2 are connected to the main control module to enable automatic program download.

[0033] When downloading programs or debugging serial ports, connect the USB device to the USB interface pins 5 (D+) and 6 (D-) of the TYPE-C module. Connect these pins to the USBBD+ and USBBD- data lines respectively to enable USB data transmission. Connect pin 2 (TXD) to RXD_USB via resistor R22 (220Ω); connect pin 3 (RXD) to TXD_USB via resistor R23 (220Ω) to complete the conversion between USB and serial signals.

[0034] The power management module's mainboard is equipped with a rechargeable lithium battery. The power management module includes a dual-power automatic switching circuit and a battery boost / discharge circuit. The lithium battery, after being connected to the dual-power automatic switching circuit via the battery boost / discharge circuit, outputs power to the battery power input terminal of the communication module. The communication module is a dedicated optical modem, and its power supply component is a power socket.

[0035] The power management module also includes a 12V-5V DC power conversion circuit and a 5V-3.3V DC power conversion circuit. The 12V-5V DC power conversion circuit converts the 12V DC power at the VCC0 terminal to 5V power through its DC power conversion chip U7, which is used to power the RS-485 module. The 5V-3.3V DC power conversion circuit converts the 5V power to 3.3V power through its DC power conversion chip U1, which is used to power the main control module, the TYPE-C module, and the network module.

[0036] The dual-power automatic switching circuit includes an optocoupler U12, a P-MOS transistor Q6, a pull-down resistor R45, and a diode D3. The optocoupler U12 is connected to a 12V power supply through a resistor R11. The cathode of the LED in the optocoupler U12 is grounded, the collector of the transistor is connected to a 3.3V power supply, and the emitter is connected to a resistor R46 and then grounded, and is also connected to the main control module. The source of the P-MOS transistor Q6 is connected to the battery voltage input terminal VBAT, the drain is connected to the voltage output terminal VCC0, and the gate is connected to both the pull-down resistor R45 and the 12V power supply. The gate is also connected to the pull-down resistor R45 and then grounded. The anode of the diode D3 is connected to the gate of the P-MOS transistor Q6, and the cathode is connected to the voltage output terminal VCC0.

[0037] The battery boost discharge circuit includes a boost chip U10. The input terminal of the boost chip U10 is connected to the battery BAT+, and the output terminal is connected to the battery voltage input terminal of the dual power supply automatic switching circuit through its peripheral circuit.

[0038] When the mains power supply is functioning normally, the 12V power supply, through resistor R11, turns on the LED of optocoupler U12, causing it to light up. The transistor in optocoupler U12 also conducts, transmitting the conduction signal to pin 34 of the main control chip U5. Simultaneously, the 12V power supply raises the gate voltage of PMOS transistor Q6, at which point Q6 is turned off. At this time, the 12V power supply flows through D3 to the voltage output terminal VCCO. The lithium battery does not participate in power supply; the mains power supplies the control unit and communication module through the power supply components.

[0039] When the mains power fails, the LED of optocoupler U12 is not conducting, the transistor is cut off, and the main control chip U5 receives the mains power failure signal. At this time, the 12V DC power supply is disconnected, and the gate voltage of PMOS transistor Q6 is pulled down to ground GND through pull-down resistor R45. At this time, PMOS transistor Q6 is turned on, and battery BAT+ is boosted to 12V through integrated battery boost chip U10 and output to VCCO terminal. The dual power supply automatic switching circuit supplies power to the dedicated optical modem, so that the normal network communication is not affected when the mains power is disconnected, ensuring that the device continues to work, and at the same time, it can provide the host computer server with the information of mains power failure.

[0040] In this implementation, when there is an anomaly or power outage in the municipal power supply system, a 12V DC power supply can be provided to the battery power input terminal of the dedicated optical modem via a lithium battery. This allows the abnormal warning messages of the monitored equipment to still be sent to the host computer via the dedicated optical modem in the event of an anomaly or power outage in the municipal power supply system. This enables early warning of power outages of the monitored equipment in the event of an anomaly or power outage in the municipal power supply system. By powering the dedicated optical modem with a lithium battery, early warning can be provided in the same network environment as the monitored equipment, eliminating the need to set up a separate network environment, simplifying operation, and reducing network operating costs.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An Internet of Things intelligent early warning device, characterized in that, The system includes a control unit and an intelligent on / off module. The control unit includes a main control module, an RS-485 module, a TYPE-C module, a network module, and a power management module that supplies power to the above modules. The main control module is connected to the RS-485 module, the TYPE-C module, and the power management module. The input terminal of the intelligent on / off module is connected to the mains power supply system, and the output terminal is connected to the monitored device through a power supply component. The main control module collects the power data of the intelligent on / off module through the RS-485 module, and transmits it to the host computer through the network module and then through the communication module. The output terminal of the power supply component is connected to the mains power input terminal of the control unit and the communication module, respectively. The communication module is in communication connection with the monitored device. The main board of the power management module is equipped with a rechargeable lithium battery. The power management module includes a dual power automatic switching circuit and a battery boost discharge circuit. The lithium battery is connected to the dual power automatic switching circuit through the battery boost discharge circuit and then outputs to the battery power input terminal of the communication module.

2. The IoT smart early warning device of claim 1, wherein: The power management module also includes a 12V-5V DC power conversion circuit and a 5V-3.3V DC power conversion circuit. The 12V-5V DC power conversion circuit is used to supply power to the RS-485 module, and the 5V-3.3V DC power conversion circuit is used to supply power to the main control module, the TYPE-C module, and the network module.

3. The IoT smart warning device of claim 1, wherein: The host computer communicates with the communication module via the TCP / IP protocol to receive and process data.

4. The IoT smart early warning device of claim 1, wherein: The dual-power automatic switching circuit includes an optocoupler U12, a P-MOS transistor Q6, a pull-down resistor R45, and a diode D3. The optocoupler U12 is connected to a 12V power supply through a resistor R11. The cathode of the LED in the optocoupler U12 is grounded, the collector of the transistor is connected to a 3.3V power supply, and the emitter is connected to a resistor R46 and then grounded, and is also connected to the main control module. The source of the P-MOS transistor Q6 is connected to the battery voltage input terminal VBAT, the drain is connected to the voltage output terminal VCC0, and the gate is connected to both the pull-down resistor R45 and the 12V power supply, with the gate connected to the pull-down resistor R45 and then grounded. The anode of the diode D3 is connected to the gate of the P-MOS transistor Q6, and the cathode is connected to the voltage output terminal VCC0.

5. The IoT smart warning device of claim 1, wherein: The battery boost discharge circuit includes a boost chip U10. The input terminal of the boost chip U10 is connected to the battery BAT+, and the output terminal is connected to the battery voltage input terminal of the dual power supply automatic switching circuit through its peripheral circuit.

6. The IoT smart warning device of claim 1, wherein: The TYPE-C module includes a USB-to-serial chip U4. The USB-to-serial chip U4 receives a USB differential signal and outputs a TTL level signal, which is then connected to the main control module. The RTS# and DTR# pins of the USB-to-serial chip U4 are connected to transistors Q1 and Q2 through resistors R24 and R25, respectively. The collectors of transistors Q1 and Q2 are connected to the main control module to enable automatic program download.

7. The IoT smart warning device of claim 1, wherein: The network module includes an Ethernet transceiver chip U2, which is provided with a clock signal by an external crystal oscillator X1. The signal processed by the Ethernet transceiver chip U2 passes through matching resistors R3-R6 and is then transmitted and received through the TX and RX signal lines of the RJ45 physical interface to realize data communication with the host computer via Ethernet. At the same time, the voltage is divided by resistors R11, R12 and R13, R14 to drive LED indicators LED_SPEED and LED_LINK to display the network status.

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