Equipment for blade fault diagnosis and monitoring
By introducing signal generation, adjustment and processing modules into the blade fault diagnosis and monitoring equipment, combined with ARM chip and communication module, rapid fault identification of filtered amplification circuit and sensor status is achieved, solving the problem that users find it difficult to distinguish between blade and filtered amplification circuit abnormality, and improving the simplicity and timeliness of fault judgment.
Patent Information
- Application Number
- CN202421973697.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-14
AI Technical Summary
In existing equipment used for blade fault diagnosis and monitoring, users cannot timely determine whether the abnormal operation data is due to problems with the blade itself or the filtering and amplification circuit, resulting in a cumbersome fault judgment process.
The signal generation module is used to generate an initial signal, the signal adjustment module adjusts it into a self-test signal, the signal switching module controls signal transmission, the signal processing module determines whether the self-test waveform matches the preset waveform, acquires the frequency and period through the ARM chip, and communicates with the user equipment through the communication module, and provides real-time alarms.
This simplifies fault judgment, and users can timely identify the fault status of filtered amplification circuits or sensors, reducing judgment complexity and delay.
Smart Images
Figure CN223166322U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of detection technology, and particularly to a device for blade fault diagnosis and monitoring. Background Art
[0002] A device for blade fault diagnosis and monitoring is a device that remotely and real-time monitors the operating state of a blade device. A device for blade fault diagnosis and monitoring is usually provided with several sensors. The device for blade fault diagnosis and monitoring can obtain the operating data of the blade device by using several sensors, such as the rotation speed of the blade. After the operating data is amplified and filtered through a filter amplification circuit inside the device for blade fault diagnosis and monitoring, the operating data can be uploaded to the cloud through a transmission module inside the device for blade fault diagnosis and monitoring. The user can obtain the operating data of the blade device by connecting a terminal device to the cloud, thereby realizing remote monitoring of the blade device.
[0003] Since the device for blade fault diagnosis and monitoring is usually far from the user, in the prior art, when the operating data is abnormal, the user cannot timely determine whether the abnormality is in the blade itself or in the filter amplification circuit, resulting in a more cumbersome fault judgment process. Utility Model Content
[0004] To solve the deficiencies of the prior art, the purpose of this application is to provide a device for blade fault diagnosis and monitoring with a relatively simple fault judgment.
[0005] To achieve the above purpose, this application adopts the following technical solutions:
[0006] A device for blade fault diagnosis and monitoring includes a sensor and a filter amplification circuit. The filter amplification circuit is used to filter and amplify the monitoring data transmitted by the sensor. The device for blade fault diagnosis and monitoring further includes a signal generation module for generating an initial signal; a signal adjustment module electrically connected to the signal generation module, and the signal adjustment module is used to receive the initial signal and adjust the initial signal into a self-check signal; a signal switching module electrically connected to the signal adjustment module, the sensor, and the filter amplification circuit respectively, and the signal switching module is used to control the transmission of the monitoring data or the self-check signal to the filter amplification circuit; a signal processing module electrically connected to the filter amplification circuit, and the signal processing module is used to receive the self-check signal and obtain the self-check waveform of the self-check signal. The signal processing module is further used to determine whether the self-check waveform matches a preset waveform.
[0007] Further, the signal processing module is also electrically connected to the signal switching module. The signal processing module is used to generate a switching signal, and the signal switching module receives the switching signal to control the transmission of the monitoring data or the self-check signal to the filter amplification circuit.
[0008] Further, the signal switching module is a module switch. The positive pole of the module switch is connected to the signal conditioning module and the sensor, and the negative pole of the module switch is connected to the filter amplification circuit.
[0009] Further, the signal switching module is a relay. The normally open contact of the relay is connected to the signal conditioning module, the normally closed contact of the relay is connected to the sensor, and the common contact of the relay is connected to the filter amplification circuit.
[0010] Further, the device for blade fault diagnosis and monitoring includes a communication module. The signal processing module is electrically connected to the communication module, and the device for blade fault diagnosis and monitoring communicates with the user's portable device through the communication module.
[0011] Further, the device for blade fault diagnosis and monitoring includes an alarm module. The alarm module is electrically connected to the signal processing module. The signal processing module generates an alarm signal according to the matching result, and the alarm module receives the alarm signal and executes the corresponding alarm prompt.
[0012] Further, the signal processing module is also electrically connected to the signal conditioning module. The signal processing module generates an adjustment signal, and the signal conditioning module receives the adjustment signal and adjusts the initial signal into a self-check signal.
[0013] Further, the signal conditioning module is a 555 timer.
[0014] Further, the signal processing module is an ARM chip. The ARM chip obtains the frequency and period of the self-check signal, and judges whether the frequency and period match the preset frequency and period.
[0015] By setting a signal generation module for generating an initial signal, a signal conditioning module for adjusting the initial signal into a self-check signal, a signal switching module and a signal processing module, the signal processing module of the above-mentioned device for blade fault diagnosis and monitoring can obtain the self-check waveform of the self-check signal and judge whether the self-check waveform matches the preset waveform, so that the fault judgment of the device for blade fault diagnosis and monitoring is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the device for blade fault diagnosis and monitoring in the embodiment of the present application;
[0017] Figure 2 is a schematic connection diagram of the communication module in the embodiment of the present application;
[0018] Figure 3 is a schematic connection diagram of the alarm module in the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the specific embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application.
[0020] As Figure 1 shown, this application provides a device 200 for blade fault diagnosis and monitoring. The device 200 for blade fault diagnosis and monitoring includes a sensor 21 and a filter amplification circuit 22. The sensor 21 is electrically connected to the filter amplification circuit 22. Among them, the sensor 21 includes a rotational speed sensor. The sensor 21 is used to obtain monitoring data, and the monitoring data includes the rotational speed data of the blade. The sensor 21 transmits the detected monitoring data to the filter amplification circuit 22. Furthermore, the filter amplification circuit 22 can receive the monitoring data and perform processing such as filtering and amplification on the monitoring data.
[0021] Furthermore, the device 200 for blade fault diagnosis and monitoring further includes a signal generation module 11, a signal conditioning module 12, a signal switching module 13, and a signal processing module 14. The signal generation module 11 is used to generate an initial signal. The signal conditioning module 12 is electrically connected to the signal generation module 11. The signal generation module 11 transmits the initial signal to the signal conditioning module 12. Furthermore, the signal conditioning module 12 receives the initial signal and adjusts the initial signal into a self-check signal. The signal switching module 13 is electrically connected to the signal conditioning module 12, the sensor 21, and the filter amplification circuit 22 respectively. After the sensor 21 obtains the monitoring data, the sensor 21 transmits the monitoring data to the signal switching module 13, and the signal switching module 13 transmits the monitoring data to the filter amplification circuit 22. In addition, after the signal conditioning module 12 adjusts the initial signal into a self-check signal, the signal conditioning module 12 transmits the self-check signal to the signal switching module 13, and the signal switching module 13 transmits the self-check signal to the filter amplification circuit 22. It can be understood that after the sensor 21 obtains the monitoring data and / or the signal conditioning module 12 adjusts the initial signal into a self-check signal, the signal switching module 13 can control the transmission of the monitoring data or the self-check signal to the filter amplification circuit 22. The signal processing module 14 is electrically connected to the filter amplification circuit 22. The signal processing module 14 is used to receive the self-check signal and obtain the self-check waveform of the self-check signal. The signal processing module 14 is also used to determine whether the self-check waveform matches a preset waveform.
[0022] It should be noted that since the self-check signal is transmitted to the signal processing module 14 through the filter amplification circuit 22, when the signal processing module 14 determines that the self-check waveform matches the preset waveform, the filter amplification circuit 22 is in a normal state. When the signal processing module 14 determines that the self-check waveform does not match the preset waveform, the filter amplification circuit 22 is in a faulty state. Through the above settings, when the device 200 for blade fault diagnosis and monitoring fails, the user can determine through the device 200 for blade fault diagnosis and monitoring whether it is the filter amplification circuit 22 or the sensor 21 that is in a faulty state, thus making the fault judgment of the device 200 for blade fault diagnosis and monitoring relatively simple.
[0023] In addition, by setting the signal switching module 13. When the device 200 for blade fault diagnosis and monitoring is not working, the signal switching module 13 can only control the monitoring data to be transmitted to the filter amplification circuit 22, thereby cutting off the connection between the device 200 for blade fault diagnosis and monitoring and the filter amplification circuit 22, so as to avoid the monitoring data interfering with the device 200 for blade fault diagnosis and monitoring.
[0024] As Figure 1 shown, as an implementation method, the signal processing module 14 is also electrically connected to the signal switching module 13. The signal processing module 14 is used to generate a switching signal, and the signal processing module 14 transmits the switching signal to the signal switching module 13. The signal switching module 13 receives the switching signal and controls the monitoring data or the self-check signal to be transmitted to the filter amplification circuit 22.
[0025] Specifically, the signal switching module 13 is a module switch. The positive pole of the module switch is connected to the signal conditioning module 12 and the sensor 21, and the negative pole of the module switch is connected to the filter amplification circuit 22. The module switch can receive the switching signal to control the connection between the sensor 21 and the filter amplification circuit 22, or the module switch receives the switching signal to control the connection between the signal conditioning module 12 and the filter amplification circuit 22, thereby avoiding the monitoring data interfering with the device 200 for blade fault diagnosis and monitoring when the device 200 for blade fault diagnosis and monitoring is not working.
[0026] Optionally, the signal switching module 13 can also be set as a relay. The normally open contact of the relay is connected to the signal conditioning module 12, the normally closed contact of the relay is connected to the sensor 21, and the common contact of the relay is connected to the filter amplification circuit 22. The relay can receive the switching signal and control the normally open contact to be attracted to the common contact through the coil, or control the normally closed contact to be attracted to the common contact, thereby controlling the connection between the sensor 21 and the filter amplification circuit 22 or the connection between the signal conditioning module 12 and the filter amplification circuit 22, so as to avoid the monitoring data interfering with the device 200 for blade fault diagnosis and monitoring when the device 200 for blade fault diagnosis and monitoring is not working.
[0027] As shown Figure 1 in the figure, as an implementation, the signal processing module 14 is also electrically connected to the signal conditioning module 12. The signal processing module 14 generates a conditioning signal, and the signal processing module 14 transmits the conditioning signal to the signal conditioning module 12. The signal conditioning module 12 receives the conditioning signal and conditions the initial signal into a self-check signal.
[0028] In the embodiment of the present application, the signal processing module 14 is an ARM chip, and the signal conditioning module 12 is a 555 timer. The 555 timer includes an SA555 chip and two adjustable resistors and an adjustable capacitor connected to the SA555 chip. The resistance value of the adjustable resistor and the capacitance value of the adjustable capacitor are both adjustable. By receiving the conditioning signal, the resistance value of the adjustable resistor and the capacitance value of the adjustable capacitor can be changed to control the signal conditioning module 12 to generate a self-check signal with a preset period and frequency.
[0029] Specifically, the preset period, the resistance value of the adjustable resistor, and the capacitance value of the adjustable capacitor satisfy the following relational expressions:
[0030] t = 0.693(R1 + 2R B )C,
[0031] where t is the preset period, R1 and R B are the resistance values of the two adjustable resistors respectively, and C is the capacitance value of the adjustable capacitor. In addition, the preset frequency and the resistance value of the adjustable resistor satisfy the following relational expressions:
[0032]
[0033] where p is the preset frequency, and R1 and R B are the resistance values of the two adjustable resistors respectively.
[0034] In the embodiment of the present application, the signal processing module 14 is an ARM chip. The ARM chip acquires the frequency and period of the self-check signal and determines whether the frequency and period match the preset frequency and period.
[0035] As shown Figure 2As shown, in one implementation, the device 200 for blade fault diagnosis and monitoring includes a communication module 15. The signal processing module 14 is electrically connected to the communication module 15. The device 200 for blade fault diagnosis and monitoring communicates with the user's portable device 300 through the communication module 15. When the signal processing module 14 determines that the frequency and period of the self-check signal match the preset frequency and period, the signal processing module 14 sends normal status information to the user's portable device 300 through the communication module 15, indicating that the filter amplification circuit 22 is in a normal working state. When the signal processing module 14 determines that the frequency and period of the self-check signal do not match the preset frequency and period, the signal processing module 14 sends abnormal status information to the user's portable device 300 through the communication module 15, indicating that the filter amplification circuit 22 is in an abnormal working state. Through the above settings, the user can timely check whether the filter amplification circuit 22 is in a normal state through the portable device 300, facilitating the user's timely judgment of faults.
[0036] As Figure 3 shown, as an alternative implementation, the device 200 for blade fault diagnosis and monitoring includes an alarm module 16. The alarm module 16 is electrically connected to the signal processing module 14. When the signal processing module 14 determines whether the frequency and period of the self-check signal match the preset frequency and period, the signal processing module 14 can generate an alarm signal according to the matching result, and the alarm module 16 receives the alarm signal and executes the corresponding alarm prompt.
[0037] Exemplarily, the alarm module 16 is a light alarm. When the signal processing module 14 determines that the frequency and period of the self-check signal match the preset frequency and period, the signal processing module 14 outputs a normal alarm signal to the alarm module 16, and the light alarm receives the normal alarm signal and emits a green light, indicating that the filter amplification circuit 22 is in a normal working state. When the signal processing module 14 determines that the frequency and period of the self-check signal do not match the preset frequency and period, the signal processing module 14 outputs an abnormal alarm signal to the alarm module 16, and the light alarm receives the normal alarm signal and emits a red light, indicating that the filter amplification circuit 22 is in an abnormal working state. Through the above settings, the user can determine whether the filter amplification circuit 22 is in a normal state by checking the alarm module 16, facilitating the user's timely judgment of faults.
[0038] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations shall fall within the protection scope of the appended claims of this application.
Claims
1. An apparatus for blade fault diagnosis and monitoring, comprising a sensor for obtaining the rotational speed of a blade and a filter amplification circuit, wherein the filter amplification circuit is used to filter and amplify the monitoring data transmitted by the sensor, and is characterized in that, The device for blade fault diagnosis and monitoring further includes: A signal generation module for generating an initial signal. A signal conditioning module electrically connected to the signal generation module, which is used to receive the initial signal and condition the initial signal into a self-check signal. A signal switching module electrically connected to the signal conditioning module, the sensor, and the filter amplification circuit respectively. The signal switching module is used to control the transmission of the self-check signal or the monitoring data to the filter amplification circuit. A signal processing module electrically connected to the filter amplification circuit. The signal processing module is used to receive the self-check signal and obtain the self-check waveform of the self-check signal. The signal processing module is also used to determine whether the self-check waveform matches a preset waveform.
2. The device for blade fault diagnosis and monitoring according to claim 1, wherein The signal processing module is also electrically connected to the signal switching module. The signal processing module is used to generate a switching signal, and the signal switching module receives the switching signal to control the transmission of the monitoring data or the self-check signal to the filter amplification circuit.
3. The device for blade fault diagnosis and monitoring according to claim 2, wherein The signal switching module is a module switch. The positive pole of the module switch is connected to the signal conditioning module and the sensor, and the negative pole of the module switch is connected to the filter amplification circuit.
4. The device for blade fault diagnosis and monitoring according to claim 2, wherein The signal switching module is a relay. The normally open contact of the relay is connected to the signal conditioning module, the normally closed contact of the relay is connected to the sensor, and the common contact of the relay is connected to the filter amplification circuit.
5. The device for blade fault diagnosis and monitoring according to claim 1, wherein The device for blade fault diagnosis and monitoring further includes a communication module. The signal processing module is electrically connected to the communication module. The device for blade fault diagnosis and monitoring communicates with the user's portable device through the communication module.
6. The device for blade fault diagnosis and monitoring according to claim 1, wherein The device for blade fault diagnosis and monitoring includes an alarm module. The alarm module is electrically connected to the signal processing module. The signal processing module generates an alarm signal according to the matching result, and the alarm module receives the alarm signal to execute corresponding alarm prompts.
7. The device for blade fault diagnosis and monitoring according to claim 1, wherein The signal processing module is also electrically connected to the signal conditioning module. The signal processing module generates a conditioning signal, and the signal conditioning module receives the conditioning signal to condition the initial signal into a self-check signal.
8. The device for blade fault diagnosis and monitoring according to claim 7, wherein The signal conditioning module is a 555 timer.
9. The device for blade fault diagnosis and monitoring according to claim 1, wherein the signal processing module is an ARM chip, and the ARM chip acquires the frequency and period of the self-check signal and determines whether the frequency and period match the preset frequency and period.