Control cabinet operation state intelligent monitoring and early warning system based on multi-source sensing

Abstract

The invention relates to the technical field of control cabinet systems, in particular to a control cabinet operation state intelligent monitoring and early warning system based on multi-source sensing. The data acquisition terminal is arranged in the control cabinet, the data acquisition terminal comprises a temperature sensor group, a vibration sensor and a smoke sensor, the temperature sensor group comprises a contact type sensor and a non-contact type sensor, the contact type sensor is attached to the inner surface of the control cabinet, and the non-contact type sensor is attached to the inner surface of the control cabinet. The non-contact sensor is arranged in the control cabinet to measure the radiation temperature in the control cabinet; the local processing unit is arranged outside the control cabinet, the local processing unit comprises an integrated panel, a microprocessor, a memory and a wired communication module, and the microprocessor, the memory and the wired communication module are all arranged in the integrated panel; the early warning unit is arranged at the upper end of the control cabinet, the early warning unit comprises an audible and visual alarm and a protective relay, and the audible and visual alarm and the protective relay are in signal connection with the microprocessor.

Description

Technical Field

[0001] This invention relates to the field of control cabinet system technology, and in particular to an intelligent monitoring and early warning system for the operating status of control cabinets based on multi-source sensing. Background Technology

[0002] The reliable operation of the control cabinet is crucial to the stability and safety of the entire conveyor system. However, traditional control cabinet monitoring methods have many limitations. Traditional monitoring methods often only monitor individual parameters of the control cabinet, lacking comprehensive consideration of multiple key operating conditions such as temperature, vibration, and smoke. This makes it difficult to achieve early fault warning and accurate fault diagnosis. Moreover, existing technologies have limited capabilities in data processing and analysis, unable to effectively filter, denoise, and normalize the large amounts of sensor data collected, and even less able to predict future equipment status through trend analysis and intelligent diagnosis. Furthermore, traditional local monitoring systems are prone to data loss during network outages or failures, failing to guarantee data integrity and continuity. Simultaneously, the lack of remote monitoring and early warning functions results in long fault response times, preventing managers from obtaining fault information in a timely manner, thus affecting the normal operation and maintenance efficiency of the equipment.

[0003] Currently, although some existing patents, such as Chinese patent CN116625530A, propose a high-temperature monitoring and alarm system for electrical control cabinets, which can monitor the control cabinet to a certain extent—by setting up a real-time high-temperature monitoring and alarm system, the main body of the electrical control cabinet can be divided into multiple temperature zones and multiple temperature thresholds can be set to monitor the temperature of electrical components individually. When the temperature detection unit detects that the temperature of an electrical component exceeds the first temperature threshold, if the temperature does not continue to rise, the control module controls the cooling fan to dissipate heat. If the temperature continues to rise and exceeds the second temperature threshold, the control module controls the branch switch to shut down the circuit of the electrical component, transmits information to the control terminal, and triggers the alarm module. When two or more electrical components are detected to exceed the second threshold, the control module controls the main switch to shut down the circuit of all electrical components to prevent fires caused by high temperatures. However, it still has shortcomings in terms of multi-dimensional status monitoring and intelligent early warning functions for the control cabinet. Summary of the Invention

[0004] In view of the above situation and to overcome the shortcomings of the existing technology, the purpose of this invention is to provide an intelligent monitoring and early warning system for the operating status of a control cabinet based on multi-source sensing. This technical objective is achieved through the following technical solution: A control cabinet operation status intelligent monitoring and early warning system based on multi-source sensing, characterized in that it includes: Control cabinet; A data acquisition terminal is installed inside the control cabinet. The data acquisition terminal includes a temperature sensor group, a vibration sensor, and a smoke sensor. The temperature sensor group includes a contact sensor and a non-contact sensor. The contact sensor is attached to the inner surface of the control cabinet, and the non-contact sensor is installed inside the control cabinet to measure the internal radiant temperature of the control cabinet. A local processing unit is located outside the control cabinet. The local processing unit includes an integrated panel, a microprocessor, a memory, and a wired communication module. The microprocessor, memory, and wired communication module are all located in the integrated panel. The microprocessor is connected to the wired communication module. The control cabinet is provided with a local communication interface. The microprocessor is connected to the data acquisition terminal via the wired communication module. The memory is connected to the microprocessor via a signal. An early warning unit is located at the top of the control cabinet. The early warning unit includes an audible and visual alarm and a protective relay, which are connected to the microprocessor via signals.

[0005] Furthermore, it also includes a remote monitoring unit, which includes a wireless communication module and a cloud storage server. The cloud storage server is connected to the microprocessor via the wireless communication module.

[0006] Furthermore, the remote monitoring unit also includes a remote warning module, which is connected to the microprocessor via a wireless communication module. The remote warning module sends alarm information to preset management personnel by integrating SMS gateway, email server, APP push service, and audible and visual alarm host.

[0007] Furthermore, the microprocessor performs preprocessing such as filtering, denoising, and normalization on the sensor data from the data acquisition terminal. Then, it compares one or more parameters in real time based on preset thresholds, triggers early warnings, performs trend analysis on key parameters, calculates the rate of change, and predicts future states.

[0008] Furthermore, the warning unit triggers the actuators inside the control cabinet to: ① start / stop the cooling fan inside the cabinet; ② control the audible and visual alarm to work; ③ disconnect the working circuit of the electrical components inside the cabinet through the protective relay.

[0009] In summary, the present invention has the following beneficial effects: It effectively improves the safety performance of the control cabinet, can provide early warning of fire, overheating and equipment parts damage, and triggers automatic protection actions to effectively protect the safety of personnel and equipment; It effectively enhances the stability of control cabinet equipment, reduces the probability of downtime, supports remote centralized monitoring, and significantly reduces the frequency and cost of manual inspections. It is especially suitable for distributed, unattended sites, enabling efficient allocation of operation and maintenance resources. It arranges maintenance work according to the actual operating status of the equipment, replacing the traditional periodic maintenance mode, avoiding over-maintenance or under-maintenance, and significantly saving maintenance costs. Attached Figure Description

[0010] The accompanying drawings, which are provided to further illustrate the invention and form part of this application, are not intended to unduly limit the invention. In the drawings: Figure 1 This is a schematic diagram of the intelligent monitoring and early warning system for the control cabinet operating status in this invention: In the picture, 1. Data acquisition terminal; 101. Temperature sensor group; 1011. Contact sensor; 1012. Non-contact sensor; 102. Vibration sensor; 103. Smoke sensor; 2. Local processing unit; 201. Integrated panel; 202. Microprocessor; 203. Memory; 204. Wired communication module; 3. Early warning unit; 301. Audible and visual alarm; 302. Protective relay; 4. Remote monitoring unit; 401. Wireless communication module; 402. Cloud storage server; 403. Remote warning module. Detailed Implementation

[0011] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figure 1 The detailed description of the embodiments will make this clear. All structural details mentioned in the following embodiments are based on the accompanying drawings.

[0012] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings. Example

[0013] A control cabinet operation status intelligent monitoring and early warning system based on multi-source sensing, characterized in that it includes: Control cabinet; Data acquisition terminal 1 is installed inside the control cabinet. Data acquisition terminal 1 includes a temperature sensor group 101, a vibration sensor 102, and a smoke sensor 103. The temperature sensor group 101 includes a contact sensor 1011 and a non-contact sensor 1012. The contact sensor 1011 is attached to the inner surface of the control cabinet, and the non-contact sensor 1012 is installed inside the control cabinet to measure the radiant temperature inside the control cabinet.

[0014] The temperature sensor group 101 converts the physical quantity of temperature into an electrical signal, which can monitor the temperature rise of key points in real time, prevent overheating failures of the control cabinet, detect problems such as poor contact, overload, and poor heat dissipation in advance, avoid component burnout and fire, and further optimize the heat dissipation inside the control cabinet based on the measurement data of the temperature sensor group 101, providing a basis for fan start and stop control.

[0015] Vibration sensor 102 commonly uses piezoelectric or MEMS accelerometers to convert mechanical vibration into electrical signals, which can monitor the mechanical state inside the control cabinet. By detecting abnormal vibrations, it can indicate fan failure, loose components, external impacts, and prevent structural damage.

[0016] The smoke sensor 103 can provide early warning of fires and detect smoke before open flames are generated, which greatly improves fire prevention and control capabilities. At the same time, the smoke sensor 103 can also perform a certain degree of specific fault diagnosis. Some electrical faults, such as severe overload and electric arc, will produce specific gases. Therefore, in some specific application scenarios, the smoke sensor 103 can also provide advanced fault indication.

[0017] Local processing unit 2 is located outside the control cabinet. Local processing unit 2 includes an integrated panel 201, a microprocessor 202, a memory 203, and a wired communication module 204. The microprocessor 202, the memory 203, and the wired communication module 204 are all located in the integrated panel 201. The microprocessor 202 is connected to the wired communication module 204. The control cabinet is provided with a local communication interface. The microprocessor 202 is connected to the data acquisition terminal 1 via the wired communication module 204. The memory 203 is connected to the microprocessor 202 via a signal.

[0018] The memory 203 is used for local storage of data information. Even in the event of network outage or network failure, it can receive data transmission and perform storage functions. The microprocessor 202 performs preprocessing such as filtering, noise reduction, and normalization on the sensor data of the data acquisition terminal 1. Then, it compares one or more parameters in real time based on preset thresholds, triggers early warnings, performs trend analysis on key parameters, calculates the rate of change, and predicts future states.

[0019] Early warning unit 3 is located at the top of the control cabinet. It includes an audible and visual alarm 301 and a protective relay 302. Both are connected to the microprocessor 202. The audible and visual alarm receives a trigger signal from the microprocessor 202 and emits a bright flash and a loud buzzer. The protective relay 302 receives the trigger signal from the microprocessor 202 and controls the opening and closing of its contacts. These contacts can be connected to the control circuits of other devices within the control cabinet, such as fan start / stop contactor coils, heater circuits, and PLC alarm input points. Early warning unit 3 triggers the actuators within the control cabinet to: ① start / stop the cooling fan; ② control the audible and visual alarm 301; ③ disconnect the electrical circuits within the cabinet via the protective relay 302.

[0020] The remote monitoring unit 4 includes a wireless communication module 401 and a cloud storage server 402. The cloud storage server 402 is connected to the microprocessor 202 via the wireless communication module 401. The cloud storage server 402 receives and stores all historical operating data uploaded from each control cabinet, providing a detailed data foundation for fault analysis, performance evaluation, and predictive maintenance.

[0021] The remote monitoring unit 4 also includes a remote warning module 403. The remote warning module 403 is connected to the microprocessor 202 via a wireless communication module 401. The remote warning module 403 sends alarm information to preset management personnel by integrating SMS gateway, email server, APP push service, and audible and visual alarm host. The remote warning module 403 can notify in time of faults, ensuring that relevant personnel are informed of the fault information as soon as possible, regardless of their location, thus shortening the fault response time. It can also set multiple warning levels and set different notification methods and recipients according to different warning levels.

[0022] The above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and it should not be considered that the specific implementation of the present invention is limited to this. For those skilled in the art to which the present invention pertains and related fields, any extensions, operation methods, and data substitutions made based on the technical solution concept of the present invention should fall within the protection scope of the present invention.

Claims

1. A control cabinet operation status intelligent monitoring and early warning system based on multi-source sensing, characterized in that, include: Control cabinet; A data acquisition terminal (1) is installed inside the control cabinet. The data acquisition terminal (1) includes a temperature sensor group (101), a vibration sensor (102), and a smoke sensor (103). The temperature sensor group (101) includes a contact sensor (1011) and a non-contact sensor (1012). The contact sensor (1011) is attached to the inner surface of the control cabinet, and the non-contact sensor (1012) is installed inside the control cabinet to measure the internal radiation temperature of the control cabinet. The local processing unit (2) is located outside the control cabinet. The local processing unit (2) includes an integrated panel (201), a microprocessor (202), a memory (203), and a wired communication module (204). The microprocessor (202), the memory (203), and the wired communication module (204) are all located in the integrated panel (201). The microprocessor (202) is connected to the wired communication module (204). The control cabinet is provided with a local communication interface. The microprocessor (202) is connected to the data acquisition terminal (1) via the wired communication module (204). The memory (203) is connected to the microprocessor (202). The early warning unit (3) is located at the top of the control cabinet. The early warning unit (3) includes an audible and visual alarm (301) and a protective relay (302). The audible and visual alarm (301) and the protective relay (302) are connected to the microprocessor (202) via signals.

2. The intelligent monitoring and early warning system for the operating status of a control cabinet based on multi-source sensing according to claim 1, characterized in that: It also includes a remote monitoring unit (4), which includes a wireless communication module (401) and a cloud storage server (402). The cloud storage server (402) is connected to the microprocessor (202) via the wireless communication module (401).

3. The intelligent monitoring and early warning system for the operating status of a control cabinet based on multi-source sensing according to claim 2, characterized in that: The remote monitoring unit (4) also includes a remote warning module (403). The remote warning module (403) is connected to the microprocessor (202) via a wireless communication module (401). The remote warning module (403) sends alarm information to preset management personnel by integrating SMS gateway, email server, APP push service, sound and light alarm host, etc.

4. The intelligent monitoring and early warning system for the operating status of a control cabinet based on multi-source sensing as described in claim 1, characterized in that: The microprocessor (202) performs preprocessing such as filtering, denoising, and normalization on the sensor data of the data acquisition terminal (1), and then compares one or more parameters in real time based on a preset threshold, triggers an early warning, performs trend analysis on key parameters, calculates the rate of change, and predicts the future state.

5. The intelligent monitoring and early warning system for the operating status of a control cabinet based on multi-source sensing according to claim 1, characterized in that: The warning unit (3) triggers the actuator in the control cabinet to ① start / stop the cooling fan in the cabinet; ② control the sound and light alarm (301) to work; ③ disconnect the working circuit of the electrical components in the cabinet through the protection relay (302).

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