A power distribution room power failure alarm system based on the Internet of Things

Abstract

The utility model discloses a power distribution room power failure alarm system based on thing networking, its characterized in that: including data acquisition module, computer and alarm device, data acquisition module is provided with a plurality of, and each data acquisition module all includes power failure sensor, singlechip module, positioning module, communication module and power module, the inductive probe of power failure sensor is close to cable setting, is used for detecting the alternating electric field around cable line and produces detection signal, and power failure sensor is electrically connected with singlechip module, is used for sending detection signal to singlechip module, and singlechip module is used for converting detection signal into voltage value, positioning module is electrically connected with singlechip module, is used for positioning the position of data acquisition module and sends positioning information to singlechip module, and singlechip module is communicated with computer through communication module communication connection. The utility model realizes real -time monitoring and timely alarm to the power distribution room power failure state, and guarantees the safe operation of power system.

Description

Technical Field

[0001] This utility model relates to the field of power system safety monitoring technology, specifically to a power outage alarm system for distribution rooms based on the Internet of Things. Background Technology

[0002] As a crucial node connecting the power transmission network and the user end in the power system, the substation undertakes core functions such as power distribution, voltage regulation, and equipment protection. Its safe and stable operation directly affects the reliability of power supply for industrial production, medical equipment, commercial operations, and residential life. However, traditional substation power outage alarm systems suffer from the following technical bottlenecks:

[0003] 1. Traditional solutions rely on manual, timed inspections, which are inefficient and typically occur every 4-6 hours, making 24-hour continuous monitoring impossible. When a power outage occurs in the distribution room, the average fault detection time exceeds 30 minutes, leading to power loss losses for critical loads.

[0004] 2. Delayed alarm information transmission: The existing system uses hard-wired alarm methods (such as audible and visual alarms), which can only provide warnings locally in the power distribution room. This makes it difficult for maintenance personnel to detect power outages in a timely manner. Moreover, when multiple power distribution rooms fail at the same time, it is difficult for maintenance personnel to quickly locate the problem area. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an Internet of Things-based power outage alarm system for power distribution rooms, so as to realize real-time monitoring and timely alarm of the power outage status of power distribution rooms and ensure the safe operation of the power system.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A power outage alarm system for a power distribution room based on the Internet of Things (IoT) is characterized by comprising a data acquisition module, a computer, and an alarm device. Multiple data acquisition modules are provided, each including a power outage sensor, a microcontroller module, a positioning module, a communication module, and a power supply module. The sensing probe of the power outage sensor is positioned close to the cable to detect the alternating electric field around the cable line and generate a detection signal. The power outage sensor is electrically connected to the microcontroller module to send the detection signal to the microcontroller module, which converts the detection signal into a voltage value. The positioning module is electrically connected to the microcontroller module to locate the position of the data acquisition module and send the location information to the microcontroller module. The microcontroller module communicates with the computer via the communication module to send voltage values ​​and location information to the computer. The power supply module provides the operating voltage. The computer is located in the monitoring room and communicates with the alarm device. The computer displays the voltage values ​​and location information sent by the microcontroller modules of each data acquisition module, and a voltage threshold is set within the computer. When the voltage value sent by the microcontroller module reaches the threshold, the computer controls the alarm device to sound an alarm.

[0008] The beneficial effects of this utility model are:

[0009] This utility model provides an IoT-based power outage alarm system for power distribution rooms. Multiple data acquisition modules can be installed in different power distribution rooms, mounted on different cables. The system uses power outage sensors in the data acquisition modules to detect signals generated by the alternating electric field around the cable lines to determine if the cables are in a power outage (or disconnected) state. These signals are converted into voltage values ​​by a microcontroller module and then sent to a computer in the monitoring room along with location information via a communication module. Maintenance personnel in the monitoring room can monitor the voltage values ​​and location information of each data acquisition module in real time via computer, eliminating the need for manual periodic inspections and improving work efficiency. When the voltage value reaches a preset threshold in the computer, the computer will control the alarm device to sound an alarm, alerting maintenance personnel to a power outage in the power distribution room. Furthermore, maintenance personnel can quickly locate the fault area using the location information, facilitating timely arrival at the fault site and appropriate repair work to ensure the safe operation of the power system. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0011] Figure 2 This is a schematic diagram of the data acquisition module according to an embodiment of the present invention.

[0012] Figure 3 This is a circuit diagram of the data acquisition module according to an embodiment of the present invention.

[0013] The diagram is labeled as follows: 1. Data acquisition module; 11. Power failure sensor; 12. Microcontroller module; 13. Positioning module; 14. Communication module; 15. Power supply module; 16. AD analog-to-digital conversion module; 2. Computer; 3. Alarm device. Detailed Implementation

[0014] The present invention will now be described in conjunction with the accompanying drawings. The specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Various modifications and improvements to the technical solutions of the present invention made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.

[0015] like Figures 1 to 3 As shown, the power outage alarm system for power distribution rooms based on the Internet of Things in this embodiment includes a data acquisition module 1, a computer 2, and an alarm device 3.

[0016] In this embodiment, multiple data acquisition modules 1 are provided. Each data acquisition module 1 includes a housing, a power failure sensor 11, a microcontroller module 12, a positioning module 13, a communication module 14, and a power supply module 15. The power failure sensor 11, the microcontroller module 12, the positioning module 13, the communication module 14, and the power supply module 15 are disposed in the housing, and the sensing probe of the power failure sensor 11 extends out of the housing.

[0017] The power failure sensor 11 in this embodiment is an electric field induction type power failure sensor. Its detection principle is as follows: the line status is determined by detecting the alternating electric field around the AC line. When the line is energized, the electric field exists; after the power is cut off (or interrupted), the electric field disappears. The sensing probe of the power failure sensor 11 in this embodiment is set close to the cable and close to the live wire of the cable. The sensing probe can be fixed on the line by cable ties. It is used to detect the alternating electric field around the cable line and generate a detection signal, which is a voltage signal. The power failure sensor 11 is electrically connected to the microcontroller module 12 and is used to send the detection signal to the microcontroller module 12.

[0018] The microcontroller module 12 is used to convert the detection signal into a voltage value. In this embodiment, the microcontroller module 12 is based on the STM32F103C8T6 microcontroller. The microcontroller module 12 and the power-off sensor 11 are electrically connected to an AD analog-to-digital converter module 16. The AD analog-to-digital converter module 16 uses an AD9280 chip. The AD analog-to-digital converter module 16 is used to convert the voltage signal (analog signal) into a digital signal for processing by the microcontroller module 12. The microcontroller module 12 converts the digital signal into a voltage value according to its built-in computer program.

[0019] The positioning module 13 is electrically connected to the microcontroller module 12. In this embodiment, the positioning module 13 is a GPS positioning module, which is used to locate the position of the data acquisition module 1 and send the positioning information to the microcontroller module 12.

[0020] The microcontroller module 12 is connected to the computer 2 via the communication module 14, which is used to send voltage values ​​and location information to the computer 2. In this embodiment, the communication module 14 is a 4G module, and the surface of the casing is provided with a SIM card slot. After inserting a SIM card with 4G network enabled, the communication module 14 can communicate with the 4G network to achieve the purpose of networking.

[0021] The power module 15 is used to provide the operating voltage. In this embodiment, the power module 15 can provide 12V DC voltage and 5V DC voltage. The 12V DC voltage is used by the power failure sensor 11, and the 5V DC voltage is used by other modules.

[0022] Computer 2 is located in the monitoring room, which is covered by a WiFi wireless network. After connecting to the WiFi network, Computer 2 establishes a network connection with the microcontroller modules 12 of each data acquisition module 1. The microcontroller modules 12 send voltage values ​​and location information to Computer 2 via the network. Generally, Computer 2 has a display screen that shows the voltage values ​​and location information sent by the microcontroller modules 12 of each data acquisition module 1. Computer 2 is also connected to the alarm device 3. A voltage threshold is set within Computer 2. When the voltage value sent by the microcontroller modules 12 reaches the threshold, Computer 2 controls the alarm device 3 to sound an alarm.

[0023] In this embodiment, when the power failure sensor 11 detects the condition of the cable, the output voltage value of the power failure sensor 11 is 5V±0.1V when the cable is in a normal state; and 2.5V±0.1V when the cable is de-energized. Therefore, the threshold range that can be input into the computer 2 is 2.3 to 2.7V. When the voltage value detected by the power failure sensor 11 is within this threshold range, the computer 2 controls the alarm device 3 to sound an alarm.

[0024] In this embodiment, the alarm device 3 is a USB sound and light alarm. The USB interface of the alarm device 3 is connected to the USB port of the computer 2 via a USB data cable to achieve communication.

[0025] This embodiment of the IoT-based power outage alarm system for power distribution rooms allows for the installation of multiple data acquisition modules 1 in different power distribution rooms. These modules 1 are mounted on different cables. The power outage sensor 11 in the data acquisition module 1 detects the alternating electric field around the cable to determine whether the cable is in a power outage (or disconnected) state. This detection signal is converted into a voltage value by the microcontroller module 12 and then sent to the computer 2 in the monitoring room via the communication module 14 along with the location information. Maintenance personnel can monitor the voltage value and location information of each data acquisition module 1 in real time through the computer 2 in the monitoring room, eliminating the need for manual periodic inspections and improving work efficiency. When the voltage value reaches the set threshold in the computer 2, the computer 2 will control the alarm device 3 to issue an alarm, thereby reminding maintenance personnel that the cable in the power distribution room has experienced a power outage. Furthermore, maintenance personnel can quickly locate the fault area using the location information, facilitating timely arrival at the fault site and appropriate repair work to ensure the safe operation of the power system.

[0026] In another embodiment, computer 2 is connected to the mobile phone of the maintenance personnel. While controlling the alarm device 3 to sound an alarm, computer 2 generates alarm information and sends the alarm information to the mobile phone of the maintenance personnel through the network. This avoids the maintenance personnel being unable to receive the alarm information when they leave the monitoring room, and achieves synchronization between computer 2 and mobile phone.

Claims

1. An Internet of Things-based power distribution room power failure alarm system, characterized in that: Includes a data acquisition module, a computer, and an alarm device; The data acquisition module is configured in multiple ways, and each data acquisition module includes a power failure sensor, a microcontroller module, a positioning module, a communication module, and a power supply module. The power failure sensor is an electric field induction type power failure sensor. Its sensing probe is in close contact with the outer surface of the cable sheath. It is used to generate a detection signal by detecting the presence or absence of an alternating electric field around the cable line. The power failure sensor is electrically connected to the microcontroller module and is used to send the detection signal to the microcontroller module. The microcontroller module is used to convert the detection signal into a voltage value. The power failure sensor is electrically connected to the microcontroller module via an AD analog-to-digital converter module, which converts the detection signal from an analog signal to a digital signal before sending it to the microcontroller module. The positioning module is electrically connected to the microcontroller module and is used to locate the position of the data acquisition module and send the positioning information to the microcontroller module. The microcontroller module communicates with the computer via a communication module, and is used to send voltage values ​​and positioning information to the computer. The power module is used to provide the operating voltage; The computer is located in the monitoring room and is connected to the alarm device. The computer is used to display the voltage value and location information sent by the microcontroller module of each data acquisition module. The computer is also set with a voltage threshold. When the voltage value sent by the microcontroller module reaches the threshold, the computer controls the alarm device to sound an alarm.

2. The power distribution room power failure alarm system based on Internet of Things according to claim 1, characterized in that: The data acquisition module also includes a housing, and a power failure sensor, a microcontroller module, a positioning module, a communication module, and a power supply module are disposed inside the housing. The sensing probe of the power failure sensor extends out of the housing and is used to attach to the live wire of the cable. 3.The power distribution room power failure alarm system based on Internet of Things according to claim 1, characterized in that: The positioning module is a GPS positioning module.

4. The power distribution room power failure alarm system based on Internet of Things according to claim 1, characterized in that: The communication module is a 4G module.

5. The power distribution room power failure alarm system based on Internet of Things according to claim 1, characterized in that: The alarm device is a USB audible and visual alarm, which is connected to the computer's USB port via a USB data cable.

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