Electrical equipment fault diagnosis device based on intelligent sensor

Abstract

The utility model relates to the technical field of electric power systems, and discloses an electrical equipment fault diagnosis device based on an intelligent sensor, which comprises an intelligent sensor unit, and a vibration sensor, a temperature sensor, a current sensor, a voltage sensor and a humidity sensor which are arranged, and the intelligent sensor unit is connected with a central processing unit. The central processing unit is connected with a monitoring unit and a storage unit, the monitoring unit is connected with a control terminal, the control terminal and the storage unit are connected with cloud service, and the central processing unit is connected with the intelligent control unit. According to the electrical equipment fault diagnosis device based on the intelligent sensor, electrical equipment is monitored through the vibration sensor, the temperature sensor, the current sensor, the voltage sensor and the temperature sensor, and the intelligent sensor unit transmits monitored operation parameter data to the central processing unit for real-time matching to find abnormal data. And an alarm can be given out through the alarm.

Description

Technical Field

[0001] The utility model relates to the technical field of power systems, in particular to an electrical equipment fault diagnosis device based on an intelligent sensor. Background Art

[0002] Electrical equipment refers to a general term for various equipment and appliances that use electrical energy for work, control, regulation, measurement and protection. These devices play a vital role in modern industrial production and daily life, covering multiple fields and categories. Electrical equipment realizes the conversion, transmission, distribution, utilization and protection of electrical energy through power electronics technology and control technology. They are mainly divided into primary equipment and secondary equipment. In order to improve the real-time and accuracy of fault diagnosis, electrical equipment needs to use fault diagnosis devices.

[0003] Common electrical equipment usually consists of a power supply system, a control system, a protection system and a transmission system. The power supply system is the basis of electrical equipment and provides electrical energy for the operation of the equipment. The power supply system mainly includes: power supply, distribution device and cable. The control system is the brain of the electrical equipment, responsible for receiving input signals and controlling the operation of the equipment. It mainly includes: controller, sensor, actuator and signal processor. The protection system is the safety guarantee of electrical equipment, which is used to cut off the power supply or take other protective measures when the equipment fails to prevent the failure from expanding or causing casualties. The protection system mainly includes: overload protection, short circuit protection and grounding protection. The transmission system is the power source of electrical equipment. It converts electrical energy into mechanical energy and drives the various components of the equipment to move. The transmission system mainly includes: motor and transmission device.

[0004] Traditional electrical equipment fault diagnosis device, electrical equipment may have various faults during operation, and timely and accurate diagnosis and processing of these faults are crucial to ensure the stable operation of the power system. Traditional fault diagnosis methods often rely on manual inspections and simple fault indications, which are inefficient and inaccurate. However, in this way, manual inspections are subjective and prone to missed inspections and false inspections. If it is a systematic inspection, the demand for manpower is huge, especially for those micro-small and medium-sized enterprises. The problem of insufficient manpower is particularly important. For this reason, an electrical equipment fault diagnosis device based on intelligent sensors is proposed. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an electrical equipment fault diagnosis device based on an intelligent sensor to solve the above-mentioned technical problems of not only being prone to missed detection and false detection, but also having a huge demand for manpower.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an electrical equipment fault diagnosis device based on an intelligent sensor, comprising:

[0009] A device housing, and a display screen and control buttons arranged on the front of the device housing, and an intelligent sensor unit and an alarm are respectively installed on the top of the device housing, and a circular interface and a USB interface are respectively opened on both sides of the device housing, and a connecting plate is also installed on both sides of the device housing;

[0010] The intelligent sensor unit includes a vibration sensor, a temperature sensor, a current sensor, a voltage sensor and a humidity sensor, and the intelligent sensor unit is connected to a central processing unit, the central processing unit is connected to a monitoring unit and a storage unit, and the monitoring unit is connected to a control terminal, the control terminal and the storage unit are connected to a cloud service, and the central processing unit is connected to the intelligent control unit, and the control terminal is connected to the central processing unit. After the device housing is installed at the corresponding position of the electrical equipment through the connecting plate, the electrical equipment can be diagnosed by the intelligent sensor unit, and the vibration sensor, temperature sensor, current sensor, voltage sensor and temperature sensor can monitor the vibration, temperature, current, voltage and humidity of the electrical equipment. The model of the vibration sensor is enDAQ S2-D4D200, the temperature sensor model is PT100, the current sensor model is SC810, the voltage sensor model is CSNS300F-001, and the humidity sensor model is DHT22. The intelligent sensor unit transmits the monitored operating parameter data to the central processing unit through the circular interface and USB interface, and matches the operating parameter data obtained from the intelligent sensor unit in real time, finds abnormal data, and displays the diagnostic data through the display screen, and then controls and adjusts it through the control button. When the fault is diagnosed, the alarm will sound an alarm, allowing the staff to carry out maintenance. At the same time, remote monitoring can be achieved through the control terminal, allowing users to view the operating status and fault diagnosis information of the electrical equipment in real time through the data of the monitoring unit through the remote terminal device, and can remotely configure and control the system, such as selecting a parameter through the control terminal and adjusting it. It can monitor the operating parameters of electrical equipment in real time, such as current, voltage, temperature, etc., and analyze and process the data through the built-in fault diagnosis algorithm. Once an abnormal situation is found, the system can automatically sound an alarm and automatically adjust the operating status of the electrical equipment according to the preset control strategy to prevent the further expansion of the fault. At the same time, the device has data recording and remote monitoring functions, which is convenient for operation and maintenance personnel to conduct fault analysis and equipment maintenance. It is suitable for substations, distribution rooms, industrial enterprises and other occasions that require high-precision monitoring and automatic control of electrical equipment. It not only avoids missed detection and false detection, but also reduces the demand for manpower.

[0011] Preferably, the front side of the connection plate is provided with connection holes, and the connection plate is installed on the electrical equipment through the connection holes.

[0012] Preferably, the central processing unit is provided with an intelligent temperature control subunit, an intelligent humidity control subunit and an intelligent pressure control subunit, and the intelligent temperature control subunit includes a first controller connected to the intelligent control unit in communication, a cooling system is connected between the first controller and the temperature sensor, and the intelligent humidity control subunit includes a second controller connected to the intelligent control unit in communication. The chip of the central processing unit is STM32 series, the models of the first controller, the second controller and the third controller are all single-chip microcomputers of model AT89S51, and the cooling system is a cooling fan.

[0013] Preferably, the first controller and the humidity sensor are connected to a dehumidification system, and the intelligent pressure control subunit includes a third controller that is communicatively connected to the intelligent control unit, the third controller is connected to a pressurization system, and the pressurization system is connected to a pressure sensor. The dehumidification system is a dehumidifier, and the pressurization system is an air compressor.

[0014] Preferably, the central processing unit has a built-in data matching subunit and a data uploading subunit, and the data uploading subunit is connected to the monitoring terminal and the data storage unit respectively. This enables the device to have a data recording function, and can upload the monitored operating parameter data and fault diagnosis results to the cloud server for storage through the data uploading subunit, which is convenient for subsequent fault analysis and equipment maintenance. At the same time, it can be used to match the operating parameter data obtained from the intelligent sensor unit in real time, find abnormal data and send it to the monitoring unit for manual analysis and processing to determine whether the electrical equipment has a fault.

[0015] Preferably, the central processing unit further includes an early warning submodule and a restoration submodule, and the restoration submodule is connected to the input terminal of the electrical device. When the central processing unit determines that there is a fault in the electrical device, it can automatically send an alarm signal through the early warning submodule, and send a control instruction to the actuator of the electrical device according to the control strategy preset by the restoration submodule, and automatically restore the rated working parameters, such as: rated working voltage, rated working current, rated output, etc., to adjust the operating state of the electrical device or directly shut it down to prevent the further expansion of the fault.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides an electrical equipment fault diagnosis device based on intelligent sensors, which has the following beneficial effects:

[0018] The electrical equipment fault diagnosis device based on intelligent sensors monitors the vibration frequency, temperature, current, voltage and humidity of the electrical equipment through the vibration sensor, temperature sensor, current sensor, voltage sensor and humidity sensor in the intelligent sensor unit. The intelligent sensor unit transmits the monitored operating parameter data to the central processing unit, and matches in real time to find abnormal data. When the fault is diagnosed, the alarm is sounded by the alarm. Remote monitoring can be achieved through the control terminal, allowing the user to view the operating status and fault diagnosis information of the electrical equipment in real time through the data of the monitoring unit through the remote terminal device, and can remotely configure and control the system. It can monitor the operating parameters of the electrical equipment in real time, such as current, voltage, temperature, etc., and analyze and process the data through the built-in fault diagnosis algorithm. Once an abnormal situation is found, the system can automatically sound an alarm and automatically adjust the operating status of the electrical equipment according to the preset control strategy to prevent the further expansion of the fault, which not only avoids the phenomenon of missed detection and wrong detection, but also reduces the demand for manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram showing the connection of the intelligent sensor unit of the utility model.

[0021] In the figure: 1. device housing; 2. display screen; 3. control button; 4. intelligent sensor unit; 5. alarm; 6. connecting plate; 7. connecting hole; 8. circular interface; 9. USB interface. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides a technical solution, an electrical equipment fault diagnosis device based on an intelligent sensor, comprising: Figure 1 , a device housing 1, and a display screen 2 and a control button 3 arranged on the front of the device housing 1, and an intelligent sensor unit 4 and an alarm 5 are respectively installed on the top of the device housing 1, and a circular interface 8 and a USB interface 9 are respectively opened on both sides of the device housing 1, and a connecting plate 6 is also installed on both sides of the device housing 1;

[0024] See also Figure 2The intelligent sensor unit 4 includes a vibration sensor, a temperature sensor, a current sensor, a voltage sensor and a humidity sensor, and the intelligent sensor unit 4 is connected to a central processing unit, the central processing unit is connected to a monitoring unit and a storage unit, and the monitoring unit is connected to a control terminal, the control terminal and the storage unit are connected to a cloud service, and the central processing unit is connected to the intelligent control unit, and the control terminal is connected to the central processing unit. After the device housing 1 is installed at the corresponding position of the electrical equipment through the connecting plate 6, the electrical equipment can be diagnosed by the intelligent sensor unit 4, and the vibration sensor, temperature sensor, current sensor, voltage sensor and temperature sensor can monitor the vibration, temperature, current, voltage and humidity of the electrical equipment. The model of the vibration sensor is enDAQ S2-D4D200, the model of the temperature sensor is PT100, the model of the current sensor is SC810, the model of the voltage sensor is CSNS300F-001, and the model of the humidity sensor is DHT22. The circuit is connected to the electrical equipment through the circular interface 8 and the USB interface 9. The intelligent sensor unit 4 transmits the monitored operating parameter data to the central processing unit, matches the operating parameter data obtained from the intelligent sensor unit 4 in real time, finds abnormal data, and displays the diagnostic data through the display screen 2, and then controls and adjusts it through the control button 3. When the fault is diagnosed, the alarm 5 will sound an alarm to enable the staff to carry out maintenance. At the same time, remote monitoring can be achieved through the control terminal, allowing the user to view the operating status and fault diagnosis information of the electrical equipment in real time through the data of the monitoring unit through the remote terminal device, and can remotely configure and control the system, such as selecting a parameter through the control terminal and adjusting it. It can monitor the operating parameters of the electrical equipment in real time, such as current, voltage, temperature, etc., and analyze and process the data through the built-in fault diagnosis algorithm. Once an abnormal situation is found, the system can automatically sound an alarm and automatically adjust the operating status of the electrical equipment according to the preset control strategy to prevent the further expansion of the fault. At the same time, the device has data recording and remote monitoring functions, which is convenient for operation and maintenance personnel to perform fault analysis and equipment maintenance. It is suitable for substations, distribution rooms, industrial enterprises and other occasions that require high-precision monitoring and automatic control of electrical equipment. It not only avoids missed detection and wrong detection, but also reduces the demand for manpower.

[0025] See also Figure 1 The front of the connecting plate 6 is provided with a connecting hole 7. The connecting plate 6 is installed on the electrical device through the connecting hole 7.

[0026] See also Figure 2The central processing unit is provided with an intelligent temperature control subunit, an intelligent humidity control subunit and an intelligent pressure control subunit, and the intelligent temperature control subunit includes a first controller connected to the intelligent control unit in communication, a cooling system is connected between the first controller and the temperature sensor, and the intelligent humidity control subunit includes a second controller connected to the intelligent control unit in communication. The chip of the central processing unit is the STM32 series, the models of the first controller, the second controller and the third controller are all single-chip microcomputers of model AT89S51, and the cooling system is a cooling fan. The first controller and the humidity sensor are connected to a dehumidification system, and the intelligent pressure control subunit includes a third controller connected to the intelligent control unit in communication, the third controller is connected to a pressurization system, and the pressurization system is connected to a pressure sensor. The dehumidification system is a dehumidifier, and the pressurization system is an air compressor. The central processing unit has a built-in data matching subunit and a data uploading subunit, and the data uploading subunit is connected to the monitoring terminal and the data storage unit respectively. The device has a data recording function, and can upload the monitored operating parameter data and fault diagnosis results to the cloud server for storage through the data upload subunit, which is convenient for subsequent fault analysis and equipment maintenance. At the same time, it can be used to match the operating parameter data obtained from the intelligent sensor unit 4 in real time, find abnormal data and send it to the monitoring unit for manual analysis and processing to determine whether the electrical equipment has a fault. The central processing unit also includes an early warning submodule and a restoration submodule, and the restoration submodule is connected to the input end of the electrical equipment. When the central processing unit determines that there is a fault in the electrical equipment, it can automatically send an alarm signal through the early warning submodule, and send a control instruction to the actuator of the electrical equipment according to the control strategy preset by the restoration submodule, and automatically restore the rated working parameters, such as: rated working voltage, rated working current, rated output, etc., to adjust the operating state of the electrical equipment or directly shut it down to prevent further expansion of the fault.

[0027] This solution: start the electrical equipment, and collect the operating parameters of the electrical equipment in real time when the electrical equipment is running, including but not limited to current, voltage, temperature, vibration frequency and humidity; the intelligent sensor unit 4 transmits the monitored operating parameter data to the central processing unit through wireless or wired communication, and the built-in data matching subunit matches the operating parameter data of the electrical equipment with the pre-stored normal working parameters for analysis and processing to determine whether the electrical equipment has a fault. Once the central processing unit determines that the electrical equipment has a fault, it can automatically send out an alarm signal through the early warning submodule and the alarm 5, and send a control instruction to the actuator of the electrical equipment according to the control strategy preset by the restoration submodule, and adjust the operating state of the electrical equipment by automatically restoring the parameters to prevent further expansion of the fault; at the same time, it allows the user to view the operating state and fault diagnosis information of the electrical equipment in real time through the data of the monitoring unit through the remote terminal device, and can remotely configure and control the system, such as selecting a parameter through the control terminal and adjusting it.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrical equipment fault diagnosis device based on intelligent sensors, characterized in that: include: A device housing (1), and a display screen (2) and a control button (3) arranged on the front of the device housing (1), and an intelligent sensor unit (4) and an alarm (5) are respectively installed on the top of the device housing (1), and a circular interface (8) and a USB interface (9) are respectively opened on both sides of the device housing (1), and a connecting plate (6) is also installed on both sides of the device housing (1); The intelligent sensor unit (4) comprises a vibration sensor, a temperature sensor, a current sensor, a voltage sensor and a humidity sensor, and the intelligent sensor unit (4) is connected to a central processing unit, the central processing unit is connected to a monitoring unit and a storage unit, the monitoring unit is connected to a control terminal, the control terminal and the storage unit are connected to a cloud service, the central processing unit is connected to the intelligent control unit, and the control terminal is connected to the central processing unit.

2. The electrical equipment fault diagnosis device based on intelligent sensor according to claim 1, characterized in that: The front sides of the connecting plates (6) are each provided with connecting holes (7).

3. The electrical equipment fault diagnosis device based on intelligent sensor according to claim 1, characterized in that: The central processing unit is provided with an intelligent temperature control subunit, an intelligent humidity control subunit and an intelligent pressure control subunit, and the intelligent temperature control subunit includes a first controller communicatively connected to the intelligent control unit, a cooling system is connected between the first controller and the temperature sensor, and the intelligent humidity control subunit includes a second controller communicatively connected to the intelligent control unit.

4. The electrical equipment fault diagnosis device based on intelligent sensor according to claim 3 is characterized in that: The first controller and the humidity sensor are connected to a dehumidification system, and the intelligent pressure control subunit includes a third controller that is communicatively connected to the intelligent control unit, the third controller is connected to a pressurization system, and the pressurization system is connected to a pressure sensor.

5. The electrical equipment fault diagnosis device based on intelligent sensor according to claim 1, characterized in that: The central processing unit has a built-in data matching subunit and a data uploading subunit, and the data uploading subunit is connected to the monitoring terminal and the data storage unit respectively.

6. The electrical equipment fault diagnosis device based on intelligent sensor according to claim 1, characterized in that: The central processing unit also includes an early warning submodule and a restoration submodule, and the restoration submodule is connected to the input end of the electrical equipment.

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