Power distribution room fire-fighting monitoring system

Abstract

The utility model discloses a distribution room fire-fighting monitoring system which comprises a control module, an input end group of the control module is connected with a temperature sensor, a smoke sensor and an image identification module, an input end of the image identification module is connected with an image acquisition module, and the image acquisition module is used for acquiring images in a distribution room. The output end of the control module is connected with a driving module, and the output end of the driving module is connected with a power distribution control switch and a fire extinguishing execution module. When a fire disaster occurs, power-off protection is rapidly carried out, and fire extinguishing equipment is started to extinguish the initial fire disaster, so that the fire disaster dangerous case is treated in time.

Description

Technical Field

[0001] The utility model relates to a fire monitoring technology, and specifically designs a fire monitoring system for a power distribution room. Background Art

[0002] Power distribution rooms are essential in many industrial plants. For example, sewage treatment plants require power distribution rooms to power numerous devices and equipment, including blowers, lift pumps, and chlorine dioxide generators. These rooms typically house numerous and complex electrical equipment, often of high value and with poor fire resistance. Most distribution equipment is susceptible to short-circuit fires or fires caused by heat accumulation due to prolonged use. Therefore, fire prevention and control in power distribution rooms remains a top priority for industrial production operations.

[0003] Fire prevention and control work includes inspections and the deployment of firefighting equipment. The factory's existing power distribution room is equipped with fire monitoring technology, which uses online real-time monitoring to detect fire or potential hazards, triggering alarms and prompting firefighters to address them. However, this approach lacks early-stage processing capabilities. By the time firefighters arrive, potential fire hazards may have already developed into fires, and small fires may have grown into larger ones, inevitably leading to increased losses. Therefore, further upgrades to the fire monitoring system are necessary. Utility Model Content

[0004] The utility model provides a distribution room fire monitoring system, which can realize early warning of electrical fires, and when a fire occurs, it can quickly cut off power for protection and start fire extinguishing equipment to put out the initial fire and prevent the fire from spreading.

[0005] To this end, the technical solution of the present invention is: a distribution room fire monitoring system, including a control module, a temperature sensor, a smoke sensor and an image recognition module are connected to the input end group of the control module, the temperature sensor is used to detect the temperature of each distribution cabinet in the distribution room, the smoke sensor is used to detect the smoke concentration in the distribution room, the input end of the image recognition module is connected to the image acquisition module, the image acquisition module is used to acquire the image in the distribution room, the output end of the control module is connected to the drive module, the output end of the drive module is connected to the distribution control switch and the fire extinguishing execution module, the control module receives temperature data, smoke concentration data, and image recognition results to determine whether a fire occurs, and when a fire occurs, sends a drive signal to control the distribution control switch to cut off the power supply of the distribution cabinet, and at the same time controls the fire extinguishing execution module to perform the fire extinguishing operation.

[0006] Furthermore, the system also includes a touch screen, which is communicatively connected to the control module and is used to display data collected by the temperature sensor, the smoke sensor and the image acquisition module.

[0007] Furthermore, the touch screen is also used to input system parameters.

[0008] Furthermore, the output end of the control module is also connected to a communication module, and the communication module is used to send the received information to the mobile terminal of the fire management personnel.

[0009] Furthermore, the communication module is also used to send the received information to the factory central control platform.

[0010] Furthermore, the system also includes a power supply module, which is used to output direct current of different voltages to power the control module, temperature sensor, smoke sensor, image recognition module, image acquisition module and drive module.

[0011] Furthermore, the power supply module includes a power supply unit, a battery pack, a first step-down unit, a second step-down unit and a third step-down unit. The power supply unit is used to obtain electric energy from the mains and charge the battery pack. The input end of the first step-down unit is connected to the positive pole of the battery pack, the output end of the first step-down unit is connected to the input end of the second step-down unit, and the output end of the second step-down unit is connected to the input end of the third step-down unit. The first step-down unit outputs a first voltage to power the image acquisition module, the second step-down unit outputs a second voltage to power the temperature sensor, smoke sensor, image recognition module and drive module, and the third step-down unit outputs a third voltage to power the control module.

[0012] Furthermore, the value of the first voltage is greater than the value of the second voltage, and the value of the second voltage is greater than the value of the third voltage.

[0013] Furthermore, the control module is also connected to an audible and visual alarm and a storage module.

[0014] Beneficial effects:

[0015] 1. This system uses temperature sensors to detect the temperature of each distribution cabinet in the distribution room in real time, uses smoke sensors to detect smoke in the distribution room in real time, and uses an image acquisition module to capture images of the distribution room and input the captured atlas into the image recognition module to identify the fire status. The control module determines whether a fire has occurred based on at least two of the data from the temperature sensor, the data detected by the smoke sensor, and the recognition results of the image recognition module. If a fire has occurred, it immediately sends an alarm signal to notify the fire management personnel, and simultaneously sends a drive signal to control the distribution control switch to cut off the power supply to the distribution cabinet and control the fire extinguishing execution module to implement on-site fire extinguishing operations. This achieves rapid power outage protection and activates fire extinguishing equipment to extinguish the initial fire when a fire occurs, ensuring power supply safety and avoiding the inability to promptly handle fires in the distribution room, causing the fire to expand and cause serious losses.

[0016] 2. Determining whether a fire has occurred by using at least two of the data from the temperature sensor, the data detected by the smoke sensor, and the recognition results of the image recognition module can effectively avoid false alarms that cause production losses and has stronger anti-interference capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a principle block diagram of the utility model;

[0018] Figure 2 This is the principle block diagram of the power module;

[0019] Figure 3 This is the circuit schematic diagram of the driver module. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0021] like Figure 1 As shown, a fire monitoring system for a distribution room includes a control module, a temperature sensor, a smoke sensor, an image recognition module, an image acquisition module, a drive module, a touch screen, a communication module, an audible and visual alarm, a storage module, and a power supply module for supplying power to each of the above modules. The input end group of the control module is connected to the temperature sensor, the smoke sensor, and the image recognition module, the input end of the image recognition module is connected to the output end of the image acquisition module, one output end of the control module is connected to the input end of the drive module, the output end of the drive module is respectively connected to the input end of the distribution control switch and the fire extinguishing execution module, the other output end of the control module is connected to the audible and visual alarm, the control module exchanges data with the touch screen and the storage module, and the control module is connected to the communication module for communication. Specifically:

[0022] The temperature sensor is used to detect the temperature of each distribution cabinet in the distribution room;

[0023] The smoke sensor is used to detect the smoke concentration in the distribution room;

[0024] The image acquisition module is used to acquire images inside the power distribution room;

[0025] The image recognition module has a built-in fire image recognition model that has undergone prior recognition training, and is used to identify the fire status of the image inside the power distribution room collected by the image acquisition module based on the fire image recognition model;

[0026] The control module receives temperature data, smoke concentration data, and image recognition results to determine whether a fire has occurred, and when at least two of the results determine that a fire has occurred, a drive signal is issued and an alarm signal is generated at the same time;

[0027] The driving module is used to control the power distribution control switch to cut off the power supply of the power distribution cabinet according to the driving signal, and at the same time control the fire extinguishing execution module to execute the fire extinguishing operation;

[0028] The communication module is used to send information to the mobile terminal of the fire management personnel and the factory central control platform according to the alarm signal;

[0029] The sound and light alarm is used to make sound and light alarm according to the alarm signal;

[0030] The touch screen is used to display the data collected by the temperature sensor, smoke sensor and image acquisition module, and to input system parameters, such as temperature alarm threshold, smoke concentration alarm threshold, etc.;

[0031] The storage module is used to store input system parameters and relevant data for the system to implement the fire monitoring function.

[0032] like Figure 2 As shown, the power supply module in this example includes a power supply unit, a battery pack, a first step-down unit, a second step-down unit and a third step-down unit. The power supply unit is used to obtain electric energy from the mains and charge the battery pack. The input end of the first step-down unit is connected to the positive pole of the battery pack, the output end of the first step-down unit is connected to the input end of the second step-down unit, and the output end of the second step-down unit is connected to the input end of the third step-down unit. The first step-down unit outputs a first voltage to power the image acquisition module, the second step-down unit outputs a second voltage to power the temperature sensor, smoke sensor, image recognition module, sound and light alarm, communication module and drive module, and the third step-down unit outputs a third voltage to power the control module, touch screen and storage module.

[0033] The power supply unit utilizes a full-bridge rectifier circuit, with its two input terminals connected to the AC mains power supply, and its two output terminals connected to the positive and negative terminals of the battery pack. The full-bridge rectifier circuit converts AC power to DC power for charging the battery pack, which utilizes 24V lithium batteries. The first step-down unit utilizes an LM2576 DC-DC step-down regulator chip to convert the 24V power supply voltage to a 12V output. The LM2576 has a maximum output current of 3A and includes overcurrent, overheating, and short-circuit protection circuits. The second step-down unit utilizes an LM2596 regulator chip to convert the 12V power supply voltage outputted by the first step-down unit to a 5V output. The third step-down unit utilizes an AM1117-3.3V regulator chip to convert the 5V power supply voltage outputted by the second step-down unit to a 3.3V output.

[0034] In this embodiment, the control module uses an STM32 series single-chip microcontroller, and the temperature and smoke sensors can be commonly used commercially. The image acquisition module uses a camera. The image recognition module uses OpenCV to read camera images and perform image preprocessing, then loads a TensorFlow Lite model for image inference and prediction, and finally sends the most confident label to the control module via the serial port. The communication module uses any communication module capable of long-distance wireless communication. The sound and light alarm uses a strobe light and a buzzer.

[0035] The circuit principle of the driving module is as follows Figure 3 As shown, the circuit comprises a transistor, a first relay, and a second relay. The base of the transistor is connected to the output of the control module, and the emitter or collector of the transistor is connected in series with the coil winding L1 of the first relay and the coil winding L2 of the second relay. The normally closed switch S1 of the first relay is connected to the control circuit of the power distribution control switch, and the normally open switch S2 of the second relay is connected to the control circuit of the fire extinguishing execution module. The relay model is: SRD-03VDC-SL-C. When the control module outputs a high-level drive signal, the transistor turns on, energizing the coil winding L1 of the first relay and the coil winding L2 of the second relay. The normally closed switch S1 of the first relay opens, thereby controlling the power distribution control switch to disconnect the power supply to the distribution cabinet, and the normally closed switch S2 of the second relay closes, thereby controlling the power supply circuit of the fire extinguishing execution module to conduct the fire extinguishing operation.

[0036] Working principle:

[0037] The temperature in each distribution cabinet in the distribution room is detected in real time by the temperature sensor, the smoke in the distribution room is detected in real time by the smoke sensor, the image in the distribution room is collected by the image acquisition module and the collected atlas is input into the image recognition module to identify the fire status, the control module determines whether a fire has occurred based on at least two of the data from the temperature sensor, the data detected by the smoke sensor and the recognition result of the image recognition module, and if a fire occurs, an alarm signal is issued immediately, the sound and light alarm is used to notify the fire management personnel on the scene, and the communication module sends the alarm signal to the mobile terminal to notify the remote fire management personnel; at the same time, the control module sends a driving signal to the driving module, the driving module controls the distribution control switch to cut off the power supply of the distribution cabinet, and controls the fire extinguishing execution module to implement the fire extinguishing operation on the scene.

[0038] Based on the above principles, this system can quickly cut off power protection when a fire occurs and start fire extinguishing equipment to extinguish the initial fire, so that the fire hazard can be dealt with in a timely manner. It not only ensures the safety of power supply, reduces the fire handling time and equipment downtime, and avoids the expansion of the accident scope, but also avoids the failure to deal with the fire in the distribution room in a timely manner, causing the fire to expand and bring serious losses.

[0039] The structure and arrangement of the fire extinguishing execution module are widely documented in the prior art and will not be described in detail here.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. A fire monitoring system for a power distribution room, characterized in that: It includes a control module, and a temperature sensor, a smoke sensor and an image recognition module are connected to the input end group of the control module. The temperature sensor is used to detect the temperature of each distribution cabinet in the distribution room, and the smoke sensor is used to detect the smoke concentration in the distribution room. The input end of the image recognition module is connected to the image acquisition module, and the image acquisition module is used to acquire images in the distribution room. The output end of the control module is connected to a drive module, and the output end of the drive module is connected to a distribution control switch and a fire extinguishing execution module. The control module receives temperature data, smoke concentration data, and image recognition results to determine whether a fire has occurred. When a fire occurs, it sends a drive signal to control the distribution control switch to cut off the power supply of the distribution cabinet, and at the same time controls the fire extinguishing execution module to perform a fire extinguishing operation.

2. The fire monitoring system for the power distribution room according to claim 1, characterized in that: The system further comprises a touch screen, which is communicatively connected to the control module and is used to display data collected by the temperature sensor, the smoke sensor and the image acquisition module.

3. The fire monitoring system for the power distribution room according to claim 2, characterized in that: The touch screen is also used for inputting system parameters.

4. The fire monitoring system for distribution room according to claim 1, characterized in that: The output end of the control module is also connected to a communication module, which is used to send the received information to the mobile terminal of the fire management personnel.

5. The fire monitoring system for the power distribution room according to claim 4, characterized in that: The communication module is also used to send the received information to the factory central control platform.

6. The fire monitoring system for the power distribution room according to claim 1, characterized in that: The system further includes a power supply module, which is used to output direct current of different voltages to power the control module, temperature sensor, smoke sensor, image recognition module, image acquisition module and drive module.

7. The fire monitoring system for the power distribution room according to claim 6, characterized in that: The power supply module includes a power supply unit, a battery pack, a first step-down unit, a second step-down unit and a third step-down unit. The power supply unit is used to obtain electrical energy from the mains and charge the battery pack. The input end of the first step-down unit is connected to the positive pole of the battery pack, the output end of the first step-down unit is connected to the input end of the second step-down unit, and the output end of the second step-down unit is connected to the input end of the third step-down unit. The first step-down unit outputs a first voltage to power the image acquisition module, the second step-down unit outputs a second voltage to power the temperature sensor, smoke sensor, image recognition module and drive module, and the third step-down unit outputs a third voltage to power the control module.

8. The fire monitoring system for the power distribution room according to claim 7, characterized in that: The value of the first voltage is greater than the value of the second voltage, and the value of the second voltage is greater than the value of the third voltage.

9. The fire monitoring system for a power distribution room according to any one of claims 1 to 8, characterized in that: The control module is also connected with an audible and visual alarm and a storage module.

Images